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OrcaWinandm4air
e1362ada4c
V8 reserves an 8 GiB guard region per wasm memory inside its 1 TiB sandbox, so an Electron renderer can hold only ~124 live wasm memories regardless of free RAM. @xterm/addon-image instantiated a SIXEL decoder per terminal at activation (and kept IIP decoders after the first image), so ~120+ terminals exhausted the budget: new panes raised 'WebAssembly.instantiate(): Out of memory' rejections, and the next Kitty/IIP image threw 'WebAssembly.Memory(): could not allocate memory' out of the parser, permanently wedging that terminal's write queue. The addon-image source patch now borrows SIXEL decoders from a shared pool only while a sequence is open (color registers stay on the terminal), drops IIP decoders after each image, and turns a failed decoder allocation into a dropped image instead of a parser throw. Bundles regenerated with regenerate-xterm-patches.mjs --write. Co-authored-by: m4air <m4air@m4airs-Air.localdomain>
603 lines
1.3 MiB
Plaintext
603 lines
1.3 MiB
Plaintext
diff --git a/lib/addon-image.js b/lib/addon-image.js
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index 38cf9e8708a5f314b8d587e5428ce7facb0d4076..4c5f44e00b0972978d762df5990de86002537649 100644
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--- a/lib/addon-image.js
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+++ b/lib/addon-image.js
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@@ -1,3 +1,3 @@
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/*! For license information please see addon-image.js.LICENSE.txt */
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-!function(e,t){"object"==typeof exports&&"object"==typeof module?module.exports=t():"function"==typeof define&&define.amd?define([],t):"object"==typeof exports?exports.ImageAddon=t():e.ImageAddon=t()}(globalThis,()=>(()=>{"use strict";var e={939(e,t){function A(e){return 255&e}function i(e){return e>>>8&255}function s(e){return e>>>16&255}function r(e,t,A,i=255){return((255&i)<<24|(255&A)<<16|(255&t)<<8|255&e)>>>0}function o(e,t,A){return Math.max(e,Math.min(A,t))}function a(e,t,A){return A<0&&(A+=1),A>1&&(A-=1),6*A<1?t+6*(e-t)*A:2*A<1?e:3*A<2?t+(e-t)*(4-6*A):t}function n(e,t,A){return(4278190080|Math.round(A/100*255)<<16|Math.round(t/100*255)<<8|Math.round(e/100*255))>>>0}Object.defineProperty(t,"__esModule",{value:!0}),t.DEFAULT_FOREGROUND=t.DEFAULT_BACKGROUND=t.PALETTE_ANSI_256=t.PALETTE_VT340_GREY=t.PALETTE_VT340_COLOR=t.normalizeHLS=t.normalizeRGB=t.nearestColorIndex=t.fromRGBA8888=t.toRGBA8888=t.alpha=t.blue=t.green=t.red=t.BIG_ENDIAN=void 0,t.BIG_ENDIAN=255===new Uint8Array(new Uint32Array([4278190080]).buffer)[0],t.BIG_ENDIAN&&console.warn("BE platform detected. This version of node-sixel works only on LE properly."),t.red=A,t.green=i,t.blue=s,t.alpha=function(e){return e>>>24&255},t.toRGBA8888=r,t.fromRGBA8888=function(e){return[255&e,e>>8&255,e>>16&255,e>>>24]},t.nearestColorIndex=function(e,t){const r=A(e),o=i(e),a=s(e);let n=Number.MAX_SAFE_INTEGER,h=-1;for(let e=0;e<t.length;++e){const A=r-t[e][0],i=o-t[e][1],s=a-t[e][2],g=A*A+i*i+s*s;if(!g)return e;g<n&&(n=g,h=e)}return h},t.normalizeRGB=n,t.normalizeHLS=function(e,t,A){return function(e,t,A){if(!A){const e=Math.round(255*t);return r(e,e,e)}const i=t<.5?t*(1+A):t+A-t*A,s=2*t-i;return r(o(0,255,Math.round(255*a(i,s,e+1/3))),o(0,255,Math.round(255*a(i,s,e))),o(0,255,Math.round(255*a(i,s,e-1/3))))}((e+240)/360,t/100,A/100)},t.PALETTE_VT340_COLOR=new Uint32Array([n(0,0,0),n(20,20,80),n(80,13,13),n(20,80,20),n(80,20,80),n(20,80,80),n(80,80,20),n(53,53,53),n(26,26,26),n(33,33,60),n(60,26,26),n(33,60,33),n(60,33,60),n(33,60,60),n(60,60,33),n(80,80,80)]),t.PALETTE_VT340_GREY=new Uint32Array([n(0,0,0),n(13,13,13),n(26,26,26),n(40,40,40),n(6,6,6),n(20,20,20),n(33,33,33),n(46,46,46),n(0,0,0),n(13,13,13),n(26,26,26),n(40,40,40),n(6,6,6),n(20,20,20),n(33,33,33),n(46,46,46)]),t.PALETTE_ANSI_256=(()=>{const e=[r(0,0,0),r(205,0,0),r(0,205,0),r(205,205,0),r(0,0,238),r(205,0,205),r(0,250,205),r(229,229,229),r(127,127,127),r(255,0,0),r(0,255,0),r(255,255,0),r(92,92,255),r(255,0,255),r(0,255,255),r(255,255,255)],t=[0,95,135,175,215,255];for(let A=0;A<6;++A)for(let i=0;i<6;++i)for(let s=0;s<6;++s)e.push(r(t[A],t[i],t[s]));for(let t=8;t<=238;t+=10)e.push(r(t,t,t));return new Uint32Array(e)})(),t.DEFAULT_BACKGROUND=r(0,0,0,255),t.DEFAULT_FOREGROUND=r(255,255,255,255)},591(e,t,A){Object.defineProperty(t,"__esModule",{value:!0}),t.decodeAsync=t.decode=t.Decoder=t.DecoderAsync=void 0;const i=A(939),s=A(199),r=function(e){if("undefined"!=typeof Buffer)return Buffer.from(e,"base64");const t=atob(e),A=new Uint8Array(t.length);for(let e=0;e<A.length;++e)A[e]=t.charCodeAt(e);return A}(s.LIMITS.BYTES);let o;const a=new Uint32Array;class n{constructor(){this.bandHandler=e=>1,this.modeHandler=e=>1}handle_band(e){return this.bandHandler(e)}mode_parsed(e){return this.modeHandler(e)}}const h={memoryLimit:134217728,sixelColor:i.DEFAULT_FOREGROUND,fillColor:i.DEFAULT_BACKGROUND,palette:i.PALETTE_VT340_COLOR,paletteLimit:s.LIMITS.PALETTE_SIZE,truncate:!0};function g(e){const t=new n,A={env:{handle_band:t.handle_band.bind(t),mode_parsed:t.mode_parsed.bind(t)}};return WebAssembly.instantiate(o||r,A).then(A=>(o=o||A.module,new d(e,A.instance||A,t)))}t.DecoderAsync=g;class d{constructor(e,t,A){if(this._PIXEL_OFFSET=s.LIMITS.MAX_WIDTH+4,this._canvas=a,this._bandWidths=[],this._maxWidth=0,this._minWidth=s.LIMITS.MAX_WIDTH,this._lastOffset=0,this._currentHeight=0,this._opts=Object.assign({},h,e),this._opts.paletteLimit>s.LIMITS.PALETTE_SIZE)throw new Error(`DecoderOptions.paletteLimit must not exceed ${s.LIMITS.PALETTE_SIZE}`);if(t)A.bandHandler=this._handle_band.bind(this),A.modeHandler=this._initCanvas.bind(this);else{const e=o||(o=new WebAssembly.Module(r));t=new WebAssembly.Instance(e,{env:{handle_band:this._handle_band.bind(this),mode_parsed:this._initCanvas.bind(this)}})}this._instance=t,this._wasm=this._instance.exports,this._chunk=new Uint8Array(this._wasm.memory.buffer,this._wasm.get_chunk_address(),s.LIMITS.CHUNK_SIZE),this._states=new Uint32Array(this._wasm.memory.buffer,this._wasm.get_state_address(),12),this._palette=new Uint32Array(this._wasm.memory.buffer,this._wasm.get_palette_address(),s.LIMITS.PALETTE_SIZE),this._palette.set(this._opts.palette),this._pSrc=new Uint32Array(this._wasm.memory.buffer,this._wasm.get_p0_address()),this._wasm.init(i.DEFAULT_FOREGROUND,0,this._opts.paletteLimit,0)}get _fillColor(){return this._states[0]}get _truncate(){return this._states[8]}get _rasterWidth(){return this._states[6]}get _rasterHeight(){return this._states[7]}get _width(){return this._states[2]?this._states[2]-4:0}get _height(){return this._states[3]}get _level(){return this._states[9]}get _mode(){return this._states[10]}get _paletteLimit(){return this._states[11]}_initCanvas(e){if(2===e){const e=this.width*this.height;if(e>this._canvas.length){if(this._opts.memoryLimit&&4*e>this._opts.memoryLimit)throw this.release(),new Error("image exceeds memory limit");this._canvas=new Uint32Array(e)}this._maxWidth=this._width}else if(1===e)if(2===this._level){const e=Math.min(this._rasterWidth,s.LIMITS.MAX_WIDTH)*this._rasterHeight;if(e>this._canvas.length){if(this._opts.memoryLimit&&4*e>this._opts.memoryLimit)throw this.release(),new Error("image exceeds memory limit");this._canvas=new Uint32Array(e)}}else this._canvas.length<65536&&(this._canvas=new Uint32Array(65536));return 0}_realloc(e,t){const A=e+t;if(A>this._canvas.length){if(this._opts.memoryLimit&&4*A>this._opts.memoryLimit)throw this.release(),new Error("image exceeds memory limit");const e=new Uint32Array(65536*Math.ceil(A/65536));e.set(this._canvas),this._canvas=e}}_handle_band(e){const t=this._PIXEL_OFFSET;let A=this._lastOffset;if(2===this._mode){let i=this.height-this._currentHeight,s=0;for(;s<6&&i>0;)this._canvas.set(this._pSrc.subarray(t*s,t*s+e),A+e*s),s++,i--;this._lastOffset+=e*s,this._currentHeight+=s}else if(1===this._mode){this._realloc(A,6*e),this._maxWidth=Math.max(this._maxWidth,e),this._minWidth=Math.min(this._minWidth,e);for(let i=0;i<6;++i)this._canvas.set(this._pSrc.subarray(t*i,t*i+e),A+e*i);this._bandWidths.push(e),this._lastOffset+=6*e,this._currentHeight+=6}return 0}get width(){return 1!==this._mode?this._width:Math.max(this._maxWidth,this._wasm.current_width())}get height(){return 1!==this._mode?this._height:this._wasm.current_width()?6*this._bandWidths.length+this._wasm.current_height():6*this._bandWidths.length}get palette(){return this._palette.subarray(0,this._paletteLimit)}get memoryUsage(){return this._canvas.byteLength+this._wasm.memory.buffer.byteLength+8*this._bandWidths.length}get properties(){return{width:this.width,height:this.height,mode:this._mode,level:this._level,truncate:!!this._truncate,paletteLimit:this._paletteLimit,fillColor:this._fillColor,memUsage:this.memoryUsage,rasterAttributes:{numerator:this._states[4],denominator:this._states[5],width:this._rasterWidth,height:this._rasterHeight}}}init(e=this._opts.fillColor,t=this._opts.palette,A=this._opts.paletteLimit,i=this._opts.truncate){this._wasm.init(this._opts.sixelColor,e,A,i?1:0),t&&this._palette.set(t.subarray(0,s.LIMITS.PALETTE_SIZE)),this._bandWidths.length=0,this._maxWidth=0,this._minWidth=s.LIMITS.MAX_WIDTH,this._lastOffset=0,this._currentHeight=0}decode(e,t=0,A=e.length){let i=t;for(;i<A;){const t=Math.min(A-i,s.LIMITS.CHUNK_SIZE);this._chunk.set(e.subarray(i,i+=t)),this._wasm.decode(0,t)}}decodeString(e,t=0,A=e.length){let i=t;for(;i<A;){const t=Math.min(A-i,s.LIMITS.CHUNK_SIZE);for(let A=0,s=i;A<t;++A,++s)this._chunk[A]=e.charCodeAt(s);i+=t,this._wasm.decode(0,t)}}get data32(){if(0===this._mode||!this.width||!this.height)return a;const e=this._wasm.current_width();if(2===this._mode){let t=this.height-this._currentHeight;if(t>0){const A=this._PIXEL_OFFSET;let i=this._lastOffset,s=0;for(;s<6&&t>0;)this._canvas.set(this._pSrc.subarray(A*s,A*s+e),i+e*s),s++,t--;t&&this._canvas.fill(this._fillColor,i+e*s)}return this._canvas.subarray(0,this.width*this.height)}if(1===this._mode){if(this._minWidth===this._maxWidth){let t=!1;if(e)if(e!==this._minWidth)t=!0;else{const t=this._PIXEL_OFFSET;let A=this._lastOffset;this._realloc(A,6*e);for(let i=0;i<6;++i)this._canvas.set(this._pSrc.subarray(t*i,t*i+e),A+e*i)}if(!t)return this._canvas.subarray(0,this.width*this.height)}const t=new Uint32Array(this.width*this.height);t.fill(this._fillColor);let A=0,i=0;for(let e=0;e<this._bandWidths.length;++e){const s=this._bandWidths[e];for(let e=0;e<6;++e)t.set(this._canvas.subarray(i,i+=s),A),A+=this.width}if(e){const i=this._PIXEL_OFFSET,s=this._wasm.current_height();for(let r=0;r<s;++r)t.set(this._pSrc.subarray(i*r,i*r+e),A+this.width*r)}return t}return a}get data8(){return new Uint8ClampedArray(this.data32.buffer,0,this.width*this.height*4)}release(){this._canvas=a,this._bandWidths.length=0,this._maxWidth=0,this._minWidth=s.LIMITS.MAX_WIDTH,this._wasm.init(i.DEFAULT_FOREGROUND,0,this._opts.paletteLimit,0)}}t.Decoder=d,t.decode=function(e,t){const A=new d(t);return A.init(),"string"==typeof e?A.decodeString(e):A.decode(e),{width:A.width,height:A.height,data32:A.data32,data8:A.data8}},t.decodeAsync=async function(e,t){const A=await g(t);return A.init(),"string"==typeof e?A.decodeString(e):A.decode(e),{width:A.width,height:A.height,data32:A.data32,data8:A.data8}}},199(e,t){Object.defineProperty(t,"__esModule",{value:!0}),t.LIMITS=void 0,t.LIMITS={CHUNK_SIZE:16384,PALETTE_SIZE:4096,MAX_WIDTH:16384,BYTES:"AGFzbQEAAAABJAdgAAF/YAJ/fwBgA39/fwF/YAF/AX9gAABgBH9/f38AYAF/AAIlAgNlbnYLaGFuZGxlX2JhbmQAAwNlbnYLbW9kZV9wYXJzZWQAAwMTEgQAAAAAAQQBAQUBAAACAgAGAwQFAXABBwcFBAEBBwcGCAF/AUGAihoLB9wBDgZtZW1vcnkCABFnZXRfc3RhdGVfYWRkcmVzcwADEWdldF9jaHVua19hZGRyZXNzAAQOZ2V0X3AwX2FkZHJlc3MABRNnZXRfcGFsZXR0ZV9hZGRyZXNzAAYEaW5pdAALBmRlY29kZQAMDWN1cnJlbnRfd2lkdGgADQ5jdXJyZW50X2hlaWdodAAOGV9faW5kaXJlY3RfZnVuY3Rpb25fdGFibGUBAAtfaW5pdGlhbGl6ZQACCXN0YWNrU2F2ZQARDHN0YWNrUmVzdG9yZQASCnN0YWNrQWxsb2MAEwkMAQBBAQsGCgcJDxACDAEBCq5UEgMAAQsFAEGgCAsGAEGQiQELBgBBsIkCCwUAQZAJC+okAQh/QeQIKAIAIQVB4AgoAgAhA0HoCCgCACEIIAFBkIkBaiIJQf8BOgAAIAAgAUgEQCAAQZCJAWohBgNAIAMhBCAGQQFqIQECQCAGLQAAQf8AcSIDQTBrQQlLBEAgASEGDAELQewIKAIAQQJ0QewIaiICKAIAIQADQCACIAMgAEEKbGpBMGsiADYCACABLQAAIQMgAUEBaiIGIQEgA0H/AHEiA0Ewa0EKSQ0ACwsCQAJAAkACQAJAAkACQAJ/AkACQCADQT9rIgBBP00EQCAERQ0BIARBIUYEQAJAQfAIKAIAIgFBASABGyIHIAhqIgFB1AgoAgAiA0gNACADQf//AEoNAANAIANBAnQiAkGgiQJqIgRBoAgpAwA3AwAgAkGoiQJqQaAIKQMANwMAIAJBsIkCakGgCCkDADcDACACQbiJAmpBoAgpAwA3AwAgAkHAiQJqQaAIKQMANwMAIAJByIkCakGgCCkDADcDACACQdCJAmpBoAgpAwA3AwAgAkHYiQJqQaAIKQMANwMAIAJB4IkCakGgCCkDADcDACACQeiJAmpBoAgpAwA3AwAgAkHwiQJqQaAIKQMANwMAIAJB+IkCakGgCCkDADcDACACQYCKAmpBoAgpAwA3AwAgAkGIigJqQaAIKQMANwMAIAJBkIoCakGgCCkDADcDACACQZiKAmpBoAgpAwA3AwAgAkGgigJqQaAIKQMANwMAIAJBqIoCakGgCCkDADcDACACQbCKAmpBoAgpAwA3AwAgAkG4igJqQaAIKQMANwMAIAJBwIoCakGgCCkDADcDACACQciKAmpBoAgpAwA3AwAgAkHQigJqQaAIKQMANwMAIAJB2IoCakGgCCkDADcDACACQeCKAmpBoAgpAwA3AwAgAkHoigJqQaAIKQMANwMAIAJB8IoCakGgCCkDADcDACACQfiKAmpBoAgpAwA3AwAgAkGAiwJqQaAIKQMANwMAIAJBiIsCakGgCCkDADcDACACQZCLAmpBoAgpAwA3AwAgAkGYiwJqQaAIKQMANwMAIAJBoIsCakGgCCkDADcDACACQaiLAmpBoAgpAwA3AwAgAkGwiwJqQaAIKQMANwMAIAJBuIsCakGgCCkDADcDACACQcCLAmpBoAgpAwA3AwAgAkHIiwJqQaAIKQMANwMAIAJB0IsCakGgCCkDADcDACACQdiLAmpBoAgpAwA3AwAgAkHgiwJqQaAIKQMANwMAIAJB6IsCakGgCCkDADcDACACQfCLAmpBoAgpAwA3AwAgAkH4iwJqQaAIKQMANwMAIAJBgIwCakGgCCkDADcDACACQYiMAmpBoAgpAwA3AwAgAkGQjAJqQaAIKQMANwMAIAJBmIwCakGgCCkDADcDACACQaCMAmpBoAgpAwA3AwAgAkGojAJqQaAIKQMANwMAIAJBsIwCakGgCCkDADcDACACQbiMAmpBoAgpAwA3AwAgAkHAjAJqQaAIKQMANwMAIAJByIwCakGgCCkDADcDACACQdCMAmpBoAgpAwA3AwAgAkHYjAJqQaAIKQMANwMAIAJB4IwCakGgCCkDADcDACACQeiMAmpBoAgpAwA3AwAgAkHwjAJqQaAIKQMANwMAIAJB+IwCakGgCCkDADcDACACQYCNAmpBoAgpAwA3AwAgAkGIjQJqQaAIKQMANwMAIAJBkI0CakGgCCkDADcDACACQZiNAmpBoAgpAwA3AwAgAkGwiQZqIARBgAT8CgAAQdQIKAIAQQJ0QcCJCmogBEGABPwKAABB1AgoAgBBAnRB0IkOaiAEQYAE/AoAAEHUCCgCAEECdEHgiRJqIARBgAT8CgAAQdQIKAIAQQJ0QfCJFmogBEGABPwKAABB1AhB1AgoAgAiAkGAAWoiAzYCACABIANIDQEgAkGA/wBIDQALCwJAIABFDQAgCEH//wBLDQBBgIABIAhrIAcgAUH//wBLGyECAkAgAEEBcUUNACACRQ0AIAhBAnRBoIkCaiEDIAIhBCACQQdxIgcEQANAIAMgBTYCACADQQRqIQMgBEEBayEEIAdBAWsiBw0ACwsgAkEBa0EHSQ0AA0AgAyAFNgIcIAMgBTYCGCADIAU2AhQgAyAFNgIQIAMgBTYCDCADIAU2AgggAyAFNgIEIAMgBTYCACADQSBqIQMgBEEIayIEDQALCwJAIABBAnFFDQAgAkUNACAIQQJ0QbCJBmohAyACIQQgAkEHcSIHBEADQCADIAU2AgAgA0EEaiEDIARBAWshBCAHQQFrIgcNAAsLIAJBAWtBB0kNAANAIAMgBTYCHCADIAU2AhggAyAFNgIUIAMgBTYCECADIAU2AgwgAyAFNgIIIAMgBTYCBCADIAU2AgAgA0EgaiEDIARBCGsiBA0ACwsCQCAAQQRxRQ0AIAJFDQAgCEECdEHAiQpqIQMgAiEEIAJBB3EiBwRAA0AgAyAFNgIAIANBBGohAyAEQQFrIQQgB0EBayIHDQALCyACQQFrQQdJDQADQCADIAU2AhwgAyAFNgIYIAMgBTYCFCADIAU2AhAgAyAFNgIMIAMgBTYCCCADIAU2AgQgAyAFNgIAIANBIGohAyAEQQhrIgQNAAsLAkAgAEEIcUUNACACRQ0AIAhBAnRB0IkOaiEDIAIhBCACQQdxIgcEQANAIAMgBTYCACADQQRqIQMgBEEBayEEIAdBAWsiBw0ACwsgAkEBa0EHSQ0AA0AgAyAFNgIcIAMgBTYCGCADIAU2AhQgAyAFNgIQIAMgBTYCDCADIAU2AgggAyAFNgIEIAMgBTYCACADQSBqIQMgBEEIayIEDQALCwJAIABBEHFFDQAgAkUNACAIQQJ0QeCJEmohAyACIQQgAkEHcSIHBEADQCADIAU2AgAgA0EEaiEDIARBAWshBCAHQQFrIgcNAAsLIAJBAWtBB0kNAANAIAMgBTYCHCADIAU2AhggAyAFNgIUIAMgBTYCECADIAU2AgwgAyAFNgIIIAMgBTYCBCADIAU2AgAgA0EgaiEDIARBCGsiBA0ACwsgAEEgcUUNACACRQ0AIAJBAWshByAIQQJ0QfCJFmohAyACQQdxIgQEQANAIAMgBTYCACADQQRqIQMgAkEBayECIARBAWsiBA0ACwsgB0EHSQ0AA0AgAyAFNgIcIAMgBTYCGCADIAU2AhQgAyAFNgIQIAMgBTYCDCADIAU2AgggAyAFNgIEIAMgBTYCACADQSBqIQMgAkEIayICDQALC0HcCEHcCCgCACAAcjYCACAGQQFqIgIgBi0AAEH/AHEiA0E/ayIAQT9LDQQaDAMLAkBB7AgoAgAiBEEBRgRAQfAIKAIAIgNBzAgoAgAiAUkNASADIAFwIQMMAQtB+AgoAgAhAkH0CCgCACEBAkACQCAEQQVHDQAgAUEBRw0AIAJB6QJODQQMAQsgAkHkAEoNA0H8CCgCAEHkAEoNA0GACSgCAEHkAEoNAwsCQCABRQ0AIAFBAkoNACACQfwIKAIAQYAJKAIAIAFBAnRBiAhqKAIAEQIAIQFB8AgoAgAiA0HMCCgCACICTwR/IAMgAnAFIAMLQQJ0QZAJaiABNgIAC0HwCCgCACIDQcwIKAIAIgFJDQAgAyABcCEDCyADQQJ0QZAJaigCACEFDAELIANB/QBxQSFHBEAgCCEBIAYhAgwECyAEQSNHDQQCQEHsCCgCACICQQFGBEBB8AgoAgAiAUHMCCgCACIASQ0BIAEgAHAhAQwBC0H4CCgCACEBQfQIKAIAIQACQAJAIAJBBUcNACAAQQFHDQAgAUHpAkgNAQwHCyABQeQASg0GQfwIKAIAQeQASg0GQYAJKAIAQeQASg0GCwJAIABFDQAgAEECSg0AIAFB/AgoAgBBgAkoAgAgAEECdEGICGooAgARAgAhAEHwCCgCACIBQcwIKAIAIgJPBH8gASACcAUgAQtBAnRBkAlqIAA2AgALQfAIKAIAIgFBzAgoAgAiAEkNACABIABwIQELIAFBAnRBkAlqKAIAIQUMBAsgCCEBIAYhAgtB1AgoAgAhBgNAAkAgASAGSA0AIAZB//8ASg0AIAZBAnQiBEGgiQJqIgZBoAgpAwA3AwAgBEGoiQJqQaAIKQMANwMAIARBsIkCakGgCCkDADcDACAEQbiJAmpBoAgpAwA3AwAgBEHAiQJqQaAIKQMANwMAIARByIkCakGgCCkDADcDACAEQdCJAmpBoAgpAwA3AwAgBEHYiQJqQaAIKQMANwMAIARB4IkCakGgCCkDADcDACAEQeiJAmpBoAgpAwA3AwAgBEHwiQJqQaAIKQMANwMAIARB+IkCakGgCCkDADcDACAEQYCKAmpBoAgpAwA3AwAgBEGIigJqQaAIKQMANwMAIARBkIoCakGgCCkDADcDACAEQZiKAmpBoAgpAwA3AwAgBEGgigJqQaAIKQMANwMAIARBqIoCakGgCCkDADcDACAEQbCKAmpBoAgpAwA3AwAgBEG4igJqQaAIKQMANwMAIARBwIoCakGgCCkDADcDACAEQciKAmpBoAgpAwA3AwAgBEHQigJqQaAIKQMANwMAIARB2IoCakGgCCkDADcDACAEQeCKAmpBoAgpAwA3AwAgBEHoigJqQaAIKQMANwMAIARB8IoCakGgCCkDADcDACAEQfiKAmpBoAgpAwA3AwAgBEGAiwJqQaAIKQMANwMAIARBiIsCakGgCCkDADcDACAEQZCLAmpBoAgpAwA3AwAgBEGYiwJqQaAIKQMANwMAIARBoIsCakGgCCkDADcDACAEQaiLAmpBoAgpAwA3AwAgBEGwiwJqQaAIKQMANwMAIARBuIsCakGgCCkDADcDACAEQcCLAmpBoAgpAwA3AwAgBEHIiwJqQaAIKQMANwMAIARB0IsCakGgCCkDADcDACAEQdiLAmpBoAgpAwA3AwAgBEHgiwJqQaAIKQMANwMAIARB6IsCakGgCCkDADcDACAEQfCLAmpBoAgpAwA3AwAgBEH4iwJqQaAIKQMANwMAIARBgIwCakGgCCkDADcDACAEQYiMAmpBoAgpAwA3AwAgBEGQjAJqQaAIKQMANwMAIARBmIwCakGgCCkDADcDACAEQaCMAmpBoAgpAwA3AwAgBEGojAJqQaAIKQMANwMAIARBsIwCakGgCCkDADcDACAEQbiMAmpBoAgpAwA3AwAgBEHAjAJqQaAIKQMANwMAIARByIwCakGgCCkDADcDACAEQdCMAmpBoAgpAwA3AwAgBEHYjAJqQaAIKQMANwMAIARB4IwCakGgCCkDADcDACAEQeiMAmpBoAgpAwA3AwAgBEHwjAJqQaAIKQMANwMAIARB+IwCakGgCCkDADcDACAEQYCNAmpBoAgpAwA3AwAgBEGIjQJqQaAIKQMANwMAIARBkI0CakGgCCkDADcDACAEQZiNAmpBoAgpAwA3AwAgBEGwiQZqIAZBgAT8CgAAQdQIKAIAQQJ0QcCJCmogBkGABPwKAABB1AgoAgBBAnRB0IkOaiAGQYAE/AoAAEHUCCgCAEECdEHgiRJqIAZBgAT8CgAAQdQIKAIAQQJ0QfCJFmogBkGABPwKAABB1AhB1AgoAgBBgAFqIgY2AgALIAFB//8ATQRAIABBAXEgAWxBAnRBoIkCaiAFNgIAIABBAXZBAXEgAWxBAnRBsIkGaiAFNgIAIABBAnZBAXEgAWxBAnRBwIkKaiAFNgIAIABBA3ZBAXEgAWxBAnRB0IkOaiAFNgIAIABBBHZBAXEgAWxBAnRB4IkSaiAFNgIAIABBBXYgAWxBAnRB8IkWaiAFNgIAQdQIKAIAIQYLIAFBAWohAUHcCEHcCCgCACAAcjYCACACLQAAIQAgAkEBaiIEIQIgAEH/AHEiA0E/ayIAQcAASQ0ACyAECyECQQAhBCACIQYgASEIIANB/QBxQSFGDQELIANBJGsOCgEDAwMDAwMDAwIDC0HsCEIBNwIADAQLQdgIIAFB2AgoAgAiACAAIAFIGyIAQYCAASAAQYCAAUgbNgIADAILQegIIAFB2AgoAgAiACAAIAFIGyIAQYCAASAAQYCAAUgbIgA2AgBB2AggADYCACAAQQRrEAAEQEHoCEEENgIAQdgIQQQ2AgBB0AhBATYCAA8LEAgMAQsCQCADQTtHDQBB7AgoAgAiAEEHSg0AQewIIABBAWo2AgAgAEECdEHwCGpBADYCAAsgAiEGIAQhAyABIQgMAQtBBCEIIAIhBiAEIQMLIAYgCUkNAAsLQeQIIAU2AgBB4AggAzYCAEHoCCAINgIAC9ELAgF+CH9B2AhCBDcDAEGojQJBoAgpAwAiADcDAEGgjQIgADcDAEGYjQIgADcDAEGQjQIgADcDAEGIjQIgADcDAEGAjQIgADcDAEH4jAIgADcDAEHwjAIgADcDAEHojAIgADcDAEHgjAIgADcDAEHYjAIgADcDAEHQjAIgADcDAEHIjAIgADcDAEHAjAIgADcDAEG4jAIgADcDAEGwjAIgADcDAEGojAIgADcDAEGgjAIgADcDAEGYjAIgADcDAEGQjAIgADcDAEGIjAIgADcDAEGAjAIgADcDAEH4iwIgADcDAEHwiwIgADcDAEHoiwIgADcDAEHgiwIgADcDAEHYiwIgADcDAEHQiwIgADcDAEHIiwIgADcDAEHAiwIgADcDAEG4iwIgADcDAEGwiwIgADcDAEGoiwIgADcDAEGgiwIgADcDAEGYiwIgADcDAEGQiwIgADcDAEGIiwIgADcDAEGAiwIgADcDAEH4igIgADcDAEHwigIgADcDAEHoigIgADcDAEHgigIgADcDAEHYigIgADcDAEHQigIgADcDAEHIigIgADcDAEHAigIgADcDAEG4igIgADcDAEGwigIgADcDAEGoigIgADcDAEGgigIgADcDAEGYigIgADcDAEGQigIgADcDAEGIigIgADcDAEGAigIgADcDAEH4iQIgADcDAEHwiQIgADcDAEHoiQIgADcDAEHgiQIgADcDAEHYiQIgADcDAEHQiQIgADcDAEHIiQIgADcDAEHAiQIgADcDAEG4iQIgADcDAEGwiQIgADcDAEGoCCgCACIEQf8AakGAAW0hCAJAIARBgQFIDQBBASEBIAhBAiAIQQJKG0EBayICQQFxIQMgBEGBAk4EQCACQX5xIQIDQCABQQl0IgdBEHJBoIkCakGwiQJBgAT8CgAAIAdBsI0CakGwiQJBgAT8CgAAIAFBAmohASACQQJrIgINAAsLIANFDQAgAUEJdEEQckGgiQJqQbCJAkGABPwKAAALAkAgBEEBSA0AIAhBASAIQQFKGyIDQQFxIQUCQCADQQFrIgdFBEBBACEBDAELIANB/v///wdxIQJBACEBA0AgAUEJdCIGQRByQbCJBmpBsIkCQYAE/AoAACAGQZAEckGwiQZqQbCJAkGABPwKAAAgAUECaiEBIAJBAmsiAg0ACwsgBQRAIAFBCXRBEHJBsIkGakGwiQJBgAT8CgAACyAEQQFIDQAgA0EBcSEFIAcEfyADQf7///8HcSECQQAhAQNAIAFBCXQiBkEQckHAiQpqQbCJAkGABPwKAAAgBkGQBHJBwIkKakGwiQJBgAT8CgAAIAFBAmohASACQQJrIgINAAsgAUEHdEEEcgVBBAshASAFBEAgAUECdEHAiQpqQbCJAkGABPwKAAALIARBAUgNACADQQFxIQUgBwR/IANB/v///wdxIQJBACEBA0AgAUEJdCIGQRByQdCJDmpBsIkCQYAE/AoAACAGQZAEckHQiQ5qQbCJAkGABPwKAAAgAUECaiEBIAJBAmsiAg0ACyABQQd0QQRyBUEECyEBIAUEQCABQQJ0QdCJDmpBsIkCQYAE/AoAAAsgBEEBSA0AIANBAXEhBSAHBH8gA0H+////B3EhAkEAIQEDQCABQQl0IgZBEHJB4IkSakGwiQJBgAT8CgAAIAZBkARyQeCJEmpBsIkCQYAE/AoAACABQQJqIQEgAkECayICDQALIAFBB3RBBHIFQQQLIQEgBQRAIAFBAnRB4IkSakGwiQJBgAT8CgAACyAEQQFIDQAgA0EBcSEEIAcEfyADQf7///8HcSECQQAhAQNAIAFBCXQiA0EQckHwiRZqQbCJAkGABPwKAAAgA0GQBHJB8IkWakGwiQJBgAT8CgAAIAFBAmohASACQQJrIgINAAsgAUEHdEEEcgVBBAshASAERQ0AIAFBAnRB8IkWakGwiQJBgAT8CgAAC0HUCCAIQQd0QQRyNgIAC58TAgh/AX5B5AgoAgAhA0HgCCgCACECQegIKAIAIQcgAUGQiQFqIglB/wE6AAAgACABSARAIABBkIkBaiEIA0AgAiEEIAhBAWohAQJAIAgtAABB/wBxIgJBMGtBCUsEQCABIQgMAQtB7AgoAgBBAnRB7AhqIgUoAgAhAANAIAUgAiAAQQpsakEwayIANgIAIAEtAAAhAiABQQFqIgghASACQf8AcSICQTBrQQpJDQALCwJAAkACQAJAAkACQAJ/AkAgAkE/ayIAQT9NBEAgBEUNASAEQSFGBEBB8AgoAgAiAUEBIAEbIgQgB2ohAQJAIABFDQAgB0H//wBLDQBBgIABIAdrIAQgAUH//wBLGyEFAkAgAEEBcUUNACAHQQJ0QaCJAmohAiAFIgRBB3EiBgRAA0AgAiADNgIAIAJBBGohAiAEQQFrIQQgBkEBayIGDQALCyAFQQFrQQdJDQADQCACIAM2AhwgAiADNgIYIAIgAzYCFCACIAM2AhAgAiADNgIMIAIgAzYCCCACIAM2AgQgAiADNgIAIAJBIGohAiAEQQhrIgQNAAsLAkAgAEECcUUNACAHQQJ0QbCJBmohAiAFIgRBB3EiBgRAA0AgAiADNgIAIAJBBGohAiAEQQFrIQQgBkEBayIGDQALCyAFQQFrQQdJDQADQCACIAM2AhwgAiADNgIYIAIgAzYCFCACIAM2AhAgAiADNgIMIAIgAzYCCCACIAM2AgQgAiADNgIAIAJBIGohAiAEQQhrIgQNAAsLAkAgAEEEcUUNACAHQQJ0QcCJCmohAiAFIgRBB3EiBgRAA0AgAiADNgIAIAJBBGohAiAEQQFrIQQgBkEBayIGDQALCyAFQQFrQQdJDQADQCACIAM2AhwgAiADNgIYIAIgAzYCFCACIAM2AhAgAiADNgIMIAIgAzYCCCACIAM2AgQgAiADNgIAIAJBIGohAiAEQQhrIgQNAAsLAkAgAEEIcUUNACAHQQJ0QdCJDmohAiAFIgRBB3EiBgRAA0AgAiADNgIAIAJBBGohAiAEQQFrIQQgBkEBayIGDQALCyAFQQFrQQdJDQADQCACIAM2AhwgAiADNgIYIAIgAzYCFCACIAM2Ah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o=this._hp.fields.type;if(3===o)return!0;if(5===o){let e=r.CELL_SIZE_DEFAULT.width,A=r.CELL_SIZE_DEFAULT.height;this._renderer.dimensions&&(e=this._renderer.dimensions.css.canvas.width/this._coreTerminal.cols,A=this._renderer.dimensions.css.canvas.height/this._coreTerminal.rows);const s=null!==(i=null===(t=this._coreTerminal._core._coreBrowserService)||void 0===t?void 0:t.dpr)&&void 0!==i?i:1,o=`]1337;ReportCellSize=${A.toFixed(3)};${e.toFixed(3)};${s.toFixed(3)}\\`;return this._coreTerminal.input(o,!1),!0}if(2===o)return this._header=Object.assign({},g,this._hp.fields),this._isMultipart=!0,this._abortMulti=!1,this._dec.release(),this._dec.init(),!0;if(4===o){if(!this._isMultipart)return!0;if(this._isMultipart=!1,this._abortMulti||2!==this._header.type)return!0}let a,n,d=0,l=0,I=h.UNSUPPORTED_TYPE;if((a=e)&&((a=!this._dec.end())?(I=(0,h.imageType)(this._dec.data8),(a="unsupported"!==I.mime)?(d=I.width,l=I.height,(a=d&&l&&d*l<this._opts.pixelLimit)?([d,l]=this._resize(d,l).map(Math.floor),a=d&&l&&d*l<this._opts.pixelLimit):console.warn(`IIP: image dimension issue ${I.width}x${I.height}`)):console.warn("IIP: unsupported image type")):console.warn("IIP: error during BASE64 decoding")),!a)return this._dec.release(),!0;if("image/qoi"===I.mime){const e=this._qoiDec.decode(this._dec.data8);if(n=new ImageData(new Uint8ClampedArray(e.buffer,e.byteOffset,e.byteLength),this._qoiDec.width,this._qoiDec.height),this._qoiDec.release(),d===this._qoiDec.width&&l===this._qoiDec.height){this._dec.release();const e=s.ImageRenderer.createCanvas(void 0,this._qoiDec.width,this._qoiDec.height);return null===(A=e.getContext("2d"))||void 0===A||A.putImageData(n,0,0),this._storage.addImage(e),!0}}else n=new Blob([this._dec.data8],{type:I.mime});return this._dec.release(),createImageBitmap(n,{resizeWidth:d,resizeHeight:l}).then(e=>(this._storage.addImage(e),!0)).catch(e=>(console.warn(`IIP: decoding error ${I.mime} ${I.width}x${I.height}`,e),!0))}_resize(e,t){var A,i,s,o;const a=(null===(A=this._renderer.dimensions)||void 0===A?void 0:A.css.cell.width)||r.CELL_SIZE_DEFAULT.width,n=(null===(i=this._renderer.dimensions)||void 0===i?void 0:i.css.cell.height)||r.CELL_SIZE_DEFAULT.height,h=(null===(s=this._renderer.dimensions)||void 0===s?void 0:s.css.canvas.width)||a*this._coreTerminal.cols,g=(null===(o=this._renderer.dimensions)||void 0===o?void 0:o.css.canvas.height)||n*this._coreTerminal.rows,d=this._dim(this._header.width,h,a),l=this._dim(this._header.height,g,n);if(!d&&!l){const A=h/e,i=(g-n)/t,s=Math.min(A,i);return s<1?[e*s,t*s]:[e,t]}return d?!this._header.preserveAspectRatio&&d&&l?[d,l]:[d,t*d/e]:[e*l/t,l]}_dim(e,t,A){return"auto"===e?0:e.endsWith("%")?parseInt(e.slice(0,-1),10)*t/100:e.endsWith("px")?parseInt(e.slice(0,-2),10):parseInt(e,10)*A}}},389(e,t){function A(e){let t="";for(let A=0;A<e.length;++A)t+=String.fromCharCode(e[A]);return t}function i(e){let t=0;for(let A=0;A<e.length;++A){if(e[A]<48||e[A]>57)throw new Error("illegal char");t=10*t+e[A]-48}return t}function s(e){const t=A(e);if(!t.match(/^((auto)|(\d+?((px)|(%)){0,1}))$/))throw new Error("illegal size");return t}Object.defineProperty(t,"__esModule",{value:!0}),t.HeaderParser=void 0;const r={inline:i,size:i,name:function(e){if("undefined"!=typeof Buffer)return Buffer.from(A(e),"base64").toString();const t=atob(A(e)),i=new Uint8Array(t.length);for(let e=0;e<i.length;++e)i[e]=t.charCodeAt(e);return(new TextDecoder).decode(i)},width:s,height:s,preserveAspectRatio:i},o=[70,105,108,101],a=[77,117,108,116,105,112,97,114,116,70,105,108,101],n=[70,105,108,101,80,97,114,116],h=[70,105,108,101,69,110,100],g=[82,101,112,111,114,116,67,101,108,108,83,105,122,101],d=1024;t.HeaderParser=class{constructor(){this.state=0,this._buffer=new Uint32Array(d),this._position=0,this._key="",this.fields={}}reset(){this._buffer.fill(0),this.state=0,this._position=0,this.fields={},this._key=""}end(){if(0===this.state){if(this._position===h.length){for(let e=0;e<h.length;++e)if(this._buffer[e]!==h[e])return this._a();return this.fields.type=4,this.state=4,0}if(this._position===g.length){for(let e=0;e<g.length;++e)if(this._buffer[e]!==g[e])return this._a();return this.fields.type=5,this.state=4,0}return this._a()}return 4===this.state?0:3===this.state&&2===this.fields.type&&this._storeValue(this._position)?(this.state=4,0):this._a()}parse(e,t,A){let i=this.state,s=this._position;const r=this._buffer;if(1===i||4===i)return-1;if(0===i&&s>14)return-1;for(let h=t;h<A;++h){const t=e[h];switch(t){case 59:if(!this._storeValue(s))return this._a();i=2,s=0;break;case 61:if(0===i){if(70===r[0]){let e=0;for(;e<o.length;++e)if(r[e]!==o[e])return this._a();if(this.fields.type=1,s===n.length){for(;e<n.length;++e)if(r[e]!==n[e])return this._a();return this.fields.type=3,this.state=4,h+1}}else{if(77!==r[0])return this._a();for(let e=0;e<a.length;++e)if(r[e]!==a[e])return this._a();this.fields.type=2}i=2,s=0}else if(2===i){if(!this._storeKey(s))return this._a();i=3,s=0}else if(3===i){if(s>=d)return this._a();r[s++]=t}break;case 58:return 3!==i||this._storeValue(s)?(this.state=4,h+1):this._a();default:if(s>=d)return this._a();r[s++]=t}}return this.state=i,this._position=s,-2}_a(){return this.fields.type=0,this.state=1,-1}_storeKey(e){const t=A(this._buffer.subarray(0,e));return!!t&&(this._key=t,this.fields[t]=null,!0)}_storeValue(e){if(this._key){try{const t=this._buffer.slice(0,e);this.fields[this._key]=r[this._key]?r[this._key](t):t}catch(e){return!1}return!0}return!1}}},649(e,t){Object.defineProperty(t,"__esModule",{value:!0}),t.IIPImageStorage=void 0,t.IIPImageStorage=class{constructor(e){this._storage=e,this._addImageOpts={scrolling:!0,layer:"top",zIndex:0,cursorPos:"iip"}}addImage(e){this._storage.addImage(e,this._addImageOpts)}}},462(e,t){Object.defineProperty(t,"__esModule",{value:!0}),t.UNSUPPORTED_TYPE=void 0,t.imageType=function(e){if(e.length<32)return t.UNSUPPORTED_TYPE;const A=new Uint32Array(e.buffer,e.byteOffset,8);if(1196314761===A[0]&&169478669===A[1]&&1380206665===A[3])return{mime:"image/png",width:e[16]<<24|e[17]<<16|e[18]<<8|e[19],height:e[20]<<24|e[21]<<16|e[22]<<8|e[23]};if(255===e[0]&&216===e[1]&&255===e[2]){const[t,A]=function(e){const t=e.length;let A=4,i=e[A]<<8|e[A+1];for(;;){if(A+=i,A>=t)return[0,0];if(255!==e[A])return[0,0];if(192===e[A+1]||194===e[A+1])return A+8<t?[e[A+7]<<8|e[A+8],e[A+5]<<8|e[A+6]]:[0,0];A+=2,i=e[A]<<8|e[A+1]}}(e);return{mime:"image/jpeg",width:t,height:A}}if(944130375===A[0]&&(55===e[4]||57===e[4])&&97===e[5])return{mime:"image/gif",width:e[7]<<8|e[6],height:e[9]<<8|e[8]};if(1718185841===A[0])return{mime:"image/qoi",width:e[4]<<24|e[5]<<16|e[6]<<8|e[7],height:e[8]<<24|e[9]<<16|e[10]<<8|e[11]};if(1179011410===A[0]&&1346520407===A[2]&&3690582==(16777215&A[3])){switch(e[15]){case 88:return{mime:"image/webp",width:1+(e[24]|e[25]<<8|e[26]<<16),height:1+(e[27]|e[28]<<8|e[29]<<16)};case 76:if(47!==e[20])return t.UNSUPPORTED_TYPE;const A=e[21]|e[22]<<8|e[23]<<16|e[24]<<24;return{mime:"image/webp",width:1+(16383&A),height:1+(A>>>14&16383)};case 32:return 157!==e[23]||1!==e[24]||42!==e[25]?t.UNSUPPORTED_TYPE:{mime:"image/webp",width:16383&(e[26]|e[27]<<8),height:16383&(e[28]|e[29]<<8)}}return t.UNSUPPORTED_TYPE}if(1887007846===A[1]&&(1718187617===A[2]||1936291425===A[2])){let A=-1;const i=Math.min(e.length-16,1024);for(let t=8;t<i;t++)if(105===e[t]&&115===e[t+1]&&112===e[t+2]&&101===e[t+3]){A=t;break}if(-1!==A){const t=e[A+8]<<24|e[A+9]<<16|e[A+10]<<8|e[A+11],i=e[A+12]<<24|e[A+13]<<16|e[A+14]<<8|e[A+15];if(t>0&&i>0)return{mime:"image/avif",width:t,height:i}}return t.UNSUPPORTED_TYPE}return t.UNSUPPORTED_TYPE},t.UNSUPPORTED_TYPE={mime:"unsupported",width:0,height:0}},463(e,t,A){Object.defineProperty(t,"__esModule",{value:!0}),t.ImageRenderer=void 0;const i=A(939),s=A(426);class r extends s.Disposable{get canvas(){var e;return null===(e=this._layers.get("top"))||void 0===e?void 0:e.canvas}static createCanvas(e,t,A){const i=(null!=e?e:document).createElement("canvas");return i.width=0|t,i.height=0|A,i}static createImageData(e,t,A,i){if("function"!=typeof ImageData){const s=e.createImageData(t,A);return i&&s.data.set(new Uint8ClampedArray(i,0,t*A*4)),s}return i?new ImageData(new Uint8ClampedArray(i,0,t*A*4),t,A):new ImageData(t,A)}static createImageBitmap(e){return"function"!=typeof createImageBitmap?Promise.resolve(void 0):createImageBitmap(e)}constructor(e){super(),this._terminal=e,this._layers=new Map,this._optionsRefresh=this._register(new s.MutableDisposable),this._oldOpen=this._terminal._core.open,this._terminal._core.open=e=>{var t;null===(t=this._oldOpen)||void 0===t||t.call(this._terminal._core,e),this._open()},this._terminal._core.screenElement&&this._open(),this._optionsRefresh.value=this._terminal._core.optionsService.onOptionChange(e=>{var t;"fontSize"===e&&(this.rescaleCanvas(),null===(t=this._renderService)||void 0===t||t.refreshRows(0,this._terminal.rows))}),this._register((0,s.toDisposable)(()=>{var e;this.removeLayerFromDom(),this.removeLayerFromDom("bottom"),this._terminal._core&&this._oldOpen&&(this._terminal._core.open=this._oldOpen,this._oldOpen=void 0),this._renderService&&this._oldSetRenderer&&(this._renderService.setRenderer=this._oldSetRenderer,this._oldSetRenderer=void 0),this._renderService=void 0,this._layers.clear(),null===(e=this._placeholderBitmap)||void 0===e||e.close(),this._placeholderBitmap=void 0,this._placeholder=void 0}))}showPlaceholder(e){var t,A;e?this._placeholder||-1===this.cellSize.height||this._createPlaceHolder(Math.max(this.cellSize.height+1,24)):(null===(t=this._placeholderBitmap)||void 0===t||t.close(),this._placeholderBitmap=void 0,this._placeholder=void 0),null===(A=this._renderService)||void 0===A||A.refreshRows(0,this._terminal.rows)}get dimensions(){return this._terminal.dimensions}get cellSize(){var e,t;return{width:(null===(e=this.dimensions)||void 0===e?void 0:e.css.cell.width)||-1,height:(null===(t=this.dimensions)||void 0===t?void 0:t.css.cell.height)||-1}}clearLines(e,t,A){var i,s,r,o,a;const n=e*((null===(i=this.dimensions)||void 0===i?void 0:i.css.cell.height)||0),h=(null===(s=this.dimensions)||void 0===s?void 0:s.css.canvas.width)||0,g=(t+1-e)*((null===(r=this.dimensions)||void 0===r?void 0:r.css.cell.height)||0);A&&"top"!==A||null===(o=this._layers.get("top"))||void 0===o||o.clearRect(0,n,h,g),A&&"bottom"!==A||null===(a=this._layers.get("bottom"))||void 0===a||a.clearRect(0,n,h,g)}clearAll(e){if(!e||"top"===e){const e=this._layers.get("top");null==e||e.clearRect(0,0,e.canvas.width,e.canvas.height)}if(!e||"bottom"===e){const e=this._layers.get("bottom");null==e||e.clearRect(0,0,e.canvas.width,e.canvas.height)}}draw(e,t,A,i,s=1){const r=this._layers.get(e.layer);if(!r)return;const{width:o,height:a}=this.cellSize;if(-1===o||-1===a)return;this._rescaleImage(e,o,a);const n=e.actual,h=Math.ceil(n.width/o),g=t%h*o,d=Math.floor(t/h)*a,l=A*o,I=i*a,c=s*o+g>n.width?n.width-g:s*o,_=d+a>n.height?n.height-d:a;r.drawImage(n,Math.floor(g),Math.floor(d),Math.ceil(c),Math.ceil(_),Math.floor(l),Math.floor(I),Math.ceil(c),Math.ceil(_))}extractTile(e,t){const{width:A,height:i}=this.cellSize;if(-1===A||-1===i)return;this._rescaleImage(e,A,i);const s=e.actual,o=Math.ceil(s.width/A),a=t%o*A,n=Math.floor(t/o)*i,h=A+a>s.width?s.width-a:A,g=n+i>s.height?s.height-n:i,d=r.createCanvas(this.document,h,g),l=d.getContext("2d");return l?(l.drawImage(s,Math.floor(a),Math.floor(n),Math.floor(h),Math.floor(g),0,0,Math.floor(h),Math.floor(g)),d):void 0}drawPlaceholder(e,t,A=1){var i;const s=this._layers.get("top");if(s){const{width:r,height:o}=this.cellSize;if(-1===r||-1===o)return;if(this._placeholder?o>=this._placeholder.height&&this._createPlaceHolder(o+1):this._createPlaceHolder(Math.max(o+1,24)),!this._placeholder)return;s.drawImage(null!==(i=this._placeholderBitmap)&&void 0!==i?i:this._placeholder,e*r,t*o%2?0:1,r*A,o,e*r,t*o,r*A,o)}}rescaleCanvas(){var e,t;const A=(null===(e=this.dimensions)||void 0===e?void 0:e.css.canvas.width)||0,i=(null===(t=this.dimensions)||void 0===t?void 0:t.css.canvas.height)||0;for(const e of this._layers.values())e.canvas.width===A&&e.canvas.height===i||(e.canvas.width=A,e.canvas.height=i)}_rescaleImage(e,t,A){if(t===e.actualCellSize.width&&A===e.actualCellSize.height)return;const{width:i,height:s}=e.origCellSize;if(t===i&&A===s)return e.actual=e.orig,e.actualCellSize.width=i,void(e.actualCellSize.height=s);const o=r.createCanvas(this.document,Math.ceil(e.orig.width*t/i),Math.ceil(e.orig.height*A/s)),a=o.getContext("2d");a&&(a.drawImage(e.orig,0,0,o.width,o.height),e.actual=o,e.actualCellSize.width=t,e.actualCellSize.height=A)}_open(){this._renderService=this._terminal._core._renderService,this._oldSetRenderer=this._renderService.setRenderer.bind(this._renderService),this._renderService.setRenderer=e=>{var t;for(const e of[...this._layers.keys()])this.removeLayerFromDom(e);null===(t=this._oldSetRenderer)||void 0===t||t.call(this._renderService,e)}}insertLayerToDom(e="top"){var t,A;if(!this.document||!this._terminal._core.screenElement)return void console.warn("image addon: cannot insert output canvas to DOM, missing document or screenElement");if(this._layers.has(e))return;const i=r.createCanvas(this.document,(null===(t=this.dimensions)||void 0===t?void 0:t.css.canvas.width)||0,(null===(A=this.dimensions)||void 0===A?void 0:A.css.canvas.height)||0);i.classList.add(`xterm-image-layer-${e}`);const s=this._terminal._core.screenElement;s.style.isolation="isolate","bottom"===e?(i.style.zIndex="-1",s.insertBefore(i,s.firstChild)):(i.style.zIndex="0",s.appendChild(i));const o=i.getContext("2d",{alpha:!0});o?(this._layers.set(e,o),this.clearAll(e)):i.remove()}removeLayerFromDom(e="top"){const t=this._layers.get(e);t&&(t.canvas.remove(),this._layers.delete(e))}hasLayer(e){return this._layers.has(e)}_createPlaceHolder(e=24){var t;null===(t=this._placeholderBitmap)||void 0===t||t.close(),this._placeholderBitmap=void 0;const A=32,s=r.createCanvas(this.document,A,e),o=s.getContext("2d",{alpha:!1});if(!o)return;const a=r.createImageData(o,A,e),n=new Uint32Array(a.data.buffer),h=(0,i.toRGBA8888)(0,0,0),g=(0,i.toRGBA8888)(255,255,255);n.fill(h);for(let t=0;t<e;++t){const e=t%2,i=t*A;for(let t=0;t<A;t+=2)n[i+t+e]=g}o.putImageData(a,0,0);const d=screen.width+A-1&-32||4096;this._placeholder=r.createCanvas(this.document,d,e);const l=this._placeholder.getContext("2d",{alpha:!1});if(l){for(let e=0;e<d;e+=A)l.drawImage(s,e,0);r.createImageBitmap(this._placeholder).then(e=>this._placeholderBitmap=e)}else this._placeholder=void 0}get document(){var e;return null===(e=this._terminal._core._coreBrowserService)||void 0===e?void 0:e.window.document}}t.ImageRenderer=r},699(e,t,A){Object.defineProperty(t,"__esModule",{value:!0}),t.ImageStorage=t.CELL_SIZE_DEFAULT=void 0;const i=A(463);t.CELL_SIZE_DEFAULT={width:7,height:14};class s{get ext(){return this._urlId?-469762049&this._ext|this.underlineStyle<<26:this._ext}set ext(e){this._ext=e}get underlineStyle(){return this._urlId?5:(469762048&this._ext)>>26}set underlineStyle(e){this._ext&=-469762049,this._ext|=e<<26&469762048}get underlineColor(){return 67108863&this._ext}set underlineColor(e){this._ext&=-67108864,this._ext|=67108863&e}get underlineVariantOffset(){const e=(3758096384&this._ext)>>29;return e<0?4294967288^e:e}set underlineVariantOffset(e){this._ext&=536870911,this._ext|=e<<29&3758096384}get urlId(){return this._urlId}set urlId(e){this._urlId=e}constructor(e=0,t=0,A=-1,i=-1){this.imageId=A,this.tileId=i,this._ext=0,this._urlId=0,this._ext=e,this._urlId=t}clone(){return new s(this._ext,this._urlId,this.imageId,this.tileId)}isEmpty(){return 0===this.underlineStyle&&0===this._urlId&&-1===this.imageId}}const r=new s;t.ImageStorage=class{constructor(e,t,A){this._terminal=e,this._renderer=t,this._opts=A,this._images=new Map,this._lastId=0,this._lowestId=0,this._fullyCleared=!1,this._needsFullClear=!1,this._pixelLimit=25e5;try{this.setLimit(this._opts.storageLimit)}catch(e){e instanceof Error&&console.error(e.message),console.warn(`storageLimit is set to ${this.getLimit()} MB`)}this._viewportMetrics={cols:this._terminal.cols,rows:this._terminal.rows}}dispose(){this.reset()}reset(){var e;for(const t of this._images.values())null===(e=t.marker)||void 0===e||e.dispose();this._images.clear(),this._renderer.clearAll()}getLimit(){return 4*this._pixelLimit/1e6}setLimit(e){if(e<.5||e>1e3)throw RangeError("invalid storageLimit, should be at least 0.5 MB and not exceed 1G");this._pixelLimit=e/4*1e6>>>0,this._evictOldest(0)}getUsage(){return 4*this._getStoredPixels()/1e6}_getStoredPixels(){let e=0;for(const t of this._images.values())t.orig&&(e+=t.orig.width*t.orig.height,t.actual&&t.actual!==t.orig&&(e+=t.actual.width*t.actual.height));return e}_delImg(e){var t;const A=this._images.get(e);A&&(this._images.delete(e),window.ImageBitmap&&A.orig instanceof ImageBitmap&&A.orig.close(),null===(t=this.onImageDeleted)||void 0===t||t.call(this,e))}wipeAlternate(){var e;const t=[];for(const[A,i]of this._images.entries())"alternate"===i.bufferType&&(null===(e=i.marker)||void 0===e||e.dispose(),t.push(A));for(const e of t)this._delImg(e);this._needsFullClear=!0,this._fullyCleared=!1}deleteImage(e){var t;const A=this._images.get(e);A&&(null===(t=A.marker)||void 0===t||t.dispose(),this._delImg(e))}addImage(e,A){var i,s;this._evictOldest(e.width*e.height);let r=this._renderer.cellSize;-1!==r.width&&-1!==r.height||(r=t.CELL_SIZE_DEFAULT);const o=Math.ceil(e.width/r.width),a=Math.ceil(e.height/r.height),n=++this._lastId,h=this._terminal._core.buffer,g=this._terminal.cols,d=this._terminal.rows,l=h.x,I=h.y;let c=l,_=0;A.scrolling||(h.x=0,h.y=0,c=0),this._terminal._core._inputHandler._dirtyRowTracker.markDirty(h.y);for(let e=0;e<a;++e){const t=h.lines.get(h.y+h.ybase);for(let A=0;A<o&&!(c+A>=g);++A)this._writeToCell(t,c+A,n,e*o+A),_++;if(A.scrolling)e<a-1&&this._terminal._core._inputHandler.lineFeed();else if(++h.y>=d)break;h.x=c}this._terminal._core._inputHandler._dirtyRowTracker.markDirty(h.y),A.scrolling?"iip"===A.cursorPos?h.x=Math.min(c+o,g):h.x=c:(h.x=l,h.y=I);const C=[];for(const[e,t]of this._images.entries())t.tileCount<1&&(null===(i=t.marker)||void 0===i||i.dispose(),C.push(e));for(const e of C)this._delImg(e);const B=this._terminal.registerMarker(0);null==B||B.onDispose(()=>{this._images.get(n)&&this._delImg(n)}),"alternate"===this._terminal.buffer.active.type&&this._evictOnAlternate();const Q={orig:e,origCellSize:r,actual:e,actualCellSize:Object.assign({},r),marker:B||void 0,tileCount:_,bufferType:this._terminal.buffer.active.type,layer:A.layer,zIndex:A.zIndex};return this._images.set(n,Q),null===(s=this.onImageAdded)||void 0===s||s.call(this),n}render(e){var t,A;let i=!1,s=!1;for(const e of this._images.values())if("bottom"===e.layer?s=!0:i=!0,i&&s)break;if(i&&!this._renderer.hasLayer("top")&&(this._renderer.insertLayerToDom("top"),!this._renderer.hasLayer("top")))return;if(s&&!this._renderer.hasLayer("bottom")&&this._renderer.insertLayerToDom("bottom"),this._renderer.rescaleCanvas(),!this._images.size)return this._fullyCleared||(this._renderer.clearAll(),this._fullyCleared=!0,this._needsFullClear=!1),this._renderer.hasLayer("top")&&this._renderer.removeLayerFromDom("top"),void(this._renderer.hasLayer("bottom")&&this._renderer.removeLayerFromDom("bottom"));!i&&this._renderer.hasLayer("top")&&(this._renderer.clearAll("top"),this._renderer.removeLayerFromDom("top")),!s&&this._renderer.hasLayer("bottom")&&(this._renderer.clearAll("bottom"),this._renderer.removeLayerFromDom("bottom")),this._needsFullClear&&(this._renderer.clearAll(),this._fullyCleared=!0,this._needsFullClear=!1);const{start:o,end:a}=e,n=this._terminal._core.buffer,h=this._terminal._core.cols;this._renderer.clearLines(o,a);const g=[],d=[];for(let e=o;e<=a;++e){const i=n.lines.get(e+n.ydisp);if(!i)return;for(let s=0;s<h;++s)if(268435456&i.getBg(s)){let o=null!==(t=i._extendedAttrs[s])&&void 0!==t?t:r;const a=o.imageId;if(void 0===a||-1===a)continue;const n=this._images.get(a);if(-1!==o.tileId){const t=o.tileId,l=s;let I=1;for(;++s<h&&268435456&i.getBg(s)&&(o=null!==(A=i._extendedAttrs[s])&&void 0!==A?A:r)&&o.imageId===a&&o.tileId===t+I;)I++;s--,n?n.actual&&g.push({imgSpec:n,tileId:t,col:l,row:e,count:I}):this._opts.showPlaceholder&&d.push({col:l,row:e,count:I}),this._fullyCleared=!1}}}g.sort((e,t)=>e.imgSpec.zIndex-t.imgSpec.zIndex);for(const e of d)this._renderer.drawPlaceholder(e.col,e.row,e.count);for(const e of g)this._renderer.draw(e.imgSpec,e.tileId,e.col,e.row,e.count)}viewportResize(e){var t,A;if(!this._images.size)return void(this._viewportMetrics=e);if(this._viewportMetrics.cols>=e.cols)return void(this._viewportMetrics=e);const i=this._terminal._core.buffer,s=i.lines.length,o=this._viewportMetrics.cols-1;for(let a=0;a<s;++a){const s=i.lines.get(a);if(268435456&s.getBg(o)){const i=null!==(A=s._extendedAttrs[o])&&void 0!==A?A:r,a=i.imageId;if(void 0===a||-1===a)continue;const n=this._images.get(a);if(!n)continue;const h=Math.ceil(((null===(t=n.actual)||void 0===t?void 0:t.width)||0)/n.actualCellSize.width);if(i.tileId%h+1>=h)continue;let g=!1;for(let t=o+1;t>e.cols;++t)if(4194303&s._data[3*t+0]){g=!0;break}if(g)continue;const d=Math.min(e.cols,h-i.tileId%h+o);let l=i.tileId;for(let e=o+1;e<d;++e)this._writeToCell(s,e,a,++l),n.tileCount++}}this._viewportMetrics=e}getImageAtBufferCell(e,t){var A,s,o;const a=this._terminal._core.buffer.lines.get(t);if(a&&268435456&a.getBg(e)){const t=null!==(o=a._extendedAttrs[e])&&void 0!==o?o:r;if(t.imageId&&-1!==t.imageId){const e=null===(A=this._images.get(t.imageId))||void 0===A?void 0:A.orig;if(window.ImageBitmap&&e instanceof ImageBitmap){const t=i.ImageRenderer.createCanvas(window.document,e.width,e.height);return null===(s=t.getContext("2d"))||void 0===s||s.drawImage(e,0,0,e.width,e.height),t}return e}}}extractTileAtBufferCell(e,t){var A;const i=this._terminal._core.buffer.lines.get(t);if(i&&268435456&i.getBg(e)){const t=null!==(A=i._extendedAttrs[e])&&void 0!==A?A:r;if(t.imageId&&-1!==t.imageId&&-1!==t.tileId){const e=this._images.get(t.imageId);if(e)return this._renderer.extractTile(e,t.tileId)}}}_evictOldest(e){var t;const A=this._getStoredPixels();let i=A;for(;this._pixelLimit<i+e&&this._images.size;){const e=this._images.get(++this._lowestId);e&&e.orig&&(i-=e.orig.width*e.orig.height,e.actual&&e.orig!==e.actual&&(i-=e.actual.width*e.actual.height),null===(t=e.marker)||void 0===t||t.dispose(),this._delImg(this._lowestId))}return A-i}_writeToCell(e,t,A,i){if(268435456&e._data[3*t+2]){const r=e._extendedAttrs[t];if(r){if(void 0!==r.imageId){const e=this._images.get(r.imageId);return e&&e.tileCount--,r.imageId=A,void(r.tileId=i)}return void(e._extendedAttrs[t]=new s(r.ext,r.urlId,A,i))}}e._data[3*t+2]|=268435456,e._extendedAttrs[t]=new s(0,0,A,i)}_evictOnAlternate(){var e,t;for(const e of this._images.values())"alternate"===e.bufferType&&(e.tileCount=0);const A=this._terminal._core.buffer;for(let t=0;t<this._terminal.rows;++t){const i=A.lines.get(t);if(i)for(let t=0;t<this._terminal.cols;++t)if(268435456&i._data[3*t+2]){const A=null===(e=i._extendedAttrs[t])||void 0===e?void 0:e.imageId;if(A){const e=this._images.get(A);e&&e.tileCount++}}}const i=[];for(const[e,A]of this._images.entries())"alternate"!==A.bufferType||A.tileCount||(null===(t=A.marker)||void 0===t||t.dispose(),i.push(e));for(const e of i)this._delImg(e)}}},566(e,t,A){Object.defineProperty(t,"__esModule",{value:!0}),t.SixelHandler=void 0;const i=A(939),s=A(463),r=A(591),o=i.PALETTE_ANSI_256;function a(e){return i.BIG_ENDIAN?e:(255&e)<<24|(e>>>8&255)<<16|(e>>>16&255)<<8|e>>>24&255}o.set(i.PALETTE_VT340_COLOR),t.SixelHandler=class{constructor(e,t,A){this._opts=e,this._storage=t,this._coreTerminal=A,this._size=0,this._aborted=!1,(0,r.DecoderAsync)({memoryLimit:4*this._opts.pixelLimit,palette:o,paletteLimit:this._opts.sixelPaletteLimit}).then(e=>this._dec=e)}reset(){this._dec&&(this._dec.release(),this._dec._palette.fill(0),this._dec.init(0,o,this._opts.sixelPaletteLimit))}hook(e){var t;if(this._size=0,this._aborted=!1,this._dec){const A=1===e.params[1]?0:function(e,t){let A=0;if(!t)return A;if(e.isInverse())if(e.isFgDefault())A=a(t.foreground.rgba);else if(e.isFgRGB()){const t=e.constructor.toColorRGB(e.getFgColor());A=(0,i.toRGBA8888)(...t)}else A=a(t.ansi[e.getFgColor()].rgba);else if(e.isBgDefault())A=a(t.background.rgba);else if(e.isBgRGB()){const t=e.constructor.toColorRGB(e.getBgColor());A=(0,i.toRGBA8888)(...t)}else A=a(t.ansi[e.getBgColor()].rgba);return A}(this._coreTerminal._core._inputHandler._curAttrData,null===(t=this._coreTerminal._core._themeService)||void 0===t?void 0:t.colors);this._dec.init(A,null,this._opts.sixelPaletteLimit)}}put(e,t,A){if(!this._aborted&&this._dec){if(this._size+=A-t,this._size>this._opts.sixelSizeLimit)return console.warn("SIXEL: too much data, aborting"),this._aborted=!0,void this._dec.release();try{this._dec.decode(e,t,A)}catch(e){console.warn(`SIXEL: error while decoding image - ${e}`),this._aborted=!0,this._dec.release()}}}unhook(e){var t;if(this._aborted||!e||!this._dec)return!0;const A=this._dec.width,i=this._dec.height;if(!A||!i)return i&&this._storage.advanceCursor(i),!0;const r=s.ImageRenderer.createCanvas(void 0,A,i);return null===(t=r.getContext("2d"))||void 0===t||t.putImageData(new ImageData(this._dec.data8,A,i),0,0),this._dec.memoryUsage>4194304&&this._dec.release(),this._storage.addImage(r),!0}}},994(e,t,A){Object.defineProperty(t,"__esModule",{value:!0}),t.SixelImageStorage=void 0;const i=A(699);t.SixelImageStorage=class{constructor(e,t,A,i){this._storage=e,this._opts=t,this._renderer=A,this._terminal=i,this._addImageOpts={scrolling:!0,layer:"top",zIndex:0,cursorPos:"vt340"}}addImage(e){this._addImageOpts.scrolling=this._opts.sixelScrolling,this._storage.addImage(e,this._addImageOpts)}advanceCursor(e){if(this._opts.sixelScrolling){let t=this._renderer.cellSize;-1!==t.width&&-1!==t.height||(t=i.CELL_SIZE_DEFAULT);const A=Math.ceil(e/t.height);for(let e=1;e<A;++e)this._terminal._core._inputHandler.lineFeed()}}}},23(e,t,A){var i=this&&this.__importDefault||function(e){return e&&e.__esModule?e:{default:e}};Object.defineProperty(t,"__esModule",{value:!0}),t.KittyGraphicsHandler=void 0;const s=A(463),r=A(699),o=i(A(669)),a=A(470);t.KittyGraphicsHandler=class{constructor(e,t,A,i){this._opts=e,this._renderer=t,this._kittyStorage=A,this._coreTerminal=i,this._aborted=!1,this._decodeError=!1,this._activeDecoder=null,this._inControlData=!0,this._controlData=new Uint32Array(512),this._controlLength=0,this._encodedSizeLimit=0,this._totalEncodedSize=0,this._parsedCommand=null,this._pendingTransmissions=new Map,this._maxEncodedBytes=Math.ceil(4*this._opts.kittySizeLimit/3),this._initialEncodedBytes=Math.min(4194304,this._maxEncodedBytes)}reset(){this._cleanupAllPending(),this._activeDecoder&&(this._activeDecoder.release(),this._activeDecoder=null),this._kittyStorage.reset()}dispose(){this.reset()}_removePendingEntry(e){this._pendingTransmissions.delete(e),this._lastPendingKey===e&&(this._lastPendingKey=void 0)}_cleanupAllPending(){for(const e of this._pendingTransmissions.values())e.decoder.release();this._pendingTransmissions.clear(),this._lastPendingKey=void 0}start(){this._aborted=!1,this._decodeError=!1,this._inControlData=!0,this._controlLength=0,this._parsedCommand=null,this._encodedSizeLimit=this._maxEncodedBytes,this._totalEncodedSize=0,this._activeDecoder=null}put(e,t,A){var i;if(!this._aborted)if(this._inControlData){let s=A;for(let i=t;i<A;i++)if(59===e[i]){this._inControlData=!1,s=i;break}const r=s-t;if(this._controlLength+r>512)return void(this._aborted=!0);if(this._controlData.set(e.subarray(t,s),this._controlLength),this._controlLength+=r,!this._inControlData){if(this._parsedCommand=(0,a.parseKittyCommand)(this._parseControlDataString()),void 0!==this._parsedCommand.id&&void 0!==this._parsedCommand.imageNumber)return this._sendResponse(this._parsedCommand.id,"EINVAL:cannot specify both i and I keys",null!==(i=this._parsedCommand.quiet)&&void 0!==i?i:0),void(this._aborted=!0);if("d"===this._parsedCommand.action)return;const t=s+1;t<A&&this._streamPayload(e,t,A)}}else this._streamPayload(e,t,A)}_streamPayload(e,t,A){var i,s,r,a,n;if(this._aborted)return;const h=null!==(r=null!==(s=null===(i=this._parsedCommand)||void 0===i?void 0:i.id)&&void 0!==s?s:this._lastPendingKey)&&void 0!==r?r:0,g=this._pendingTransmissions.get(h),d=null!==(a=null==g?void 0:g.totalEncodedSize)&&void 0!==a?a:0;if(this._totalEncodedSize+=A-t,d+this._totalEncodedSize>this._encodedSizeLimit){const e=null!==(n=this._activeDecoder)&&void 0!==n?n:null==g?void 0:g.decoder;return e&&e.release(),this._activeDecoder=null,g&&this._removePendingEntry(h),void(this._aborted=!0)}this._decodeError||((null==g?void 0:g.decoder)&&!this._activeDecoder&&(this._activeDecoder=g.decoder),this._activeDecoder||(this._activeDecoder=new o.default(4194304,this._maxEncodedBytes,this._initialEncodedBytes),this._activeDecoder.init()),0!==this._activeDecoder.put(e.subarray(t,A))&&(this._activeDecoder.release(),this._activeDecoder=null,this._decodeError=!0,g&&this._removePendingEntry(h)))}end(e){var t,A;if(this._aborted||!e)return this._activeDecoder&&(this._activeDecoder.release(),this._activeDecoder=null),!0;if(this._inControlData)return this._handleNoPayloadCommand();const i=this._parsedCommand;if("d"===i.action)return this._handleDelete(i);const s=null!==(A=null!==(t=i.id)&&void 0!==t?t:this._lastPendingKey)&&void 0!==A?A:0,r=1===i.more,o=this._pendingTransmissions.get(s);if(r)return this._activeDecoder&&(o?(o.totalEncodedSize+=this._totalEncodedSize,o.decodeError=o.decodeError||this._decodeError):this._pendingTransmissions.set(s,{cmd:Object.assign({},i),decoder:this._activeDecoder,totalEncodedSize:this._totalEncodedSize,decodeError:this._decodeError}),this._lastPendingKey=s,this._activeDecoder=null),!0;o&&(this._lastPendingKey=void 0);let a=this._decodeError,n=i,h=this._activeDecoder;o&&(n=o.cmd,h=o.decoder,a=a||o.decodeError,this._pendingTransmissions.delete(s));let g=new Uint8Array(0);h&&(0!==h.end()&&(a=!0),g=h.data8),this._activeDecoder=null;const d=this._handleCommandWithBytesAndCmd(n,g,a);return h&&h.release(),d}_parseControlDataString(){let e="";for(let t=0;t<this._controlLength;t++)e+=String.fromCodePoint(this._controlData[t]);return e}_handleNoPayloadCommand(){var e,t,A,i,s;const r=(0,a.parseKittyCommand)(this._parseControlDataString());if(void 0!==r.id&&void 0!==r.imageNumber)return this._sendResponse(r.id,"EINVAL:cannot specify both i and I keys",null!==(e=r.quiet)&&void 0!==e?e:0),!0;switch(null!==(t=r.action)&&void 0!==t?t:"t"){case"d":return this._handleDelete(r);case"q":return this._sendResponse(null!==(A=r.id)&&void 0!==A?A:0,"OK",null!==(i=r.quiet)&&void 0!==i?i:0),!0;case"p":return this._handlePlacement(r);default:return void 0!==r.id&&this._sendResponse(r.id,"EINVAL:unsupported action",null!==(s=r.quiet)&&void 0!==s?s:0),!0}}_handleCommandWithBytesAndCmd(e,t,A){var i,s,r,o,a;switch(null!==(i=e.action)&&void 0!==i?i:"t"){case"t":{const i=this._handleTransmit(e,t,A);return"d"===(null!==(s=e.transmission)&&void 0!==s?s:"d")&&void 0!==e.id&&(A?this._sendResponse(e.id,"EINVAL:invalid base64 data",null!==(r=e.quiet)&&void 0!==r?r:0):t.length>0&&this._sendResponse(e.id,"OK",null!==(o=e.quiet)&&void 0!==o?o:0)),i}case"T":return this._handleTransmitDisplay(e,t,A);case"q":return this._handleQuery(e,t,A);case"p":return this._handlePlacement(e);default:return void 0!==e.id&&this._sendResponse(e.id,"EINVAL:unsupported action",null!==(a=e.quiet)&&void 0!==a?a:0),!0}}_handlePlacement(e){var t;if(void 0===e.id)return!0;const A=e.id,i=this._kittyStorage.getImage(A);return i?this._displayImage(i,e).then(t=>{var i;return this._sendResponse(A,t?"OK":"EINVAL:image rendering failed",null!==(i=e.quiet)&&void 0!==i?i:0,e.placementId),!0}):(this._sendResponse(A,"ENOENT:image not found",null!==(t=e.quiet)&&void 0!==t?t:0,e.placementId),!0)}_handleTransmit(e,t,A){var i,s,r,o,a,n;return"d"!==(null!==(i=e.transmission)&&void 0!==i?i:"d")?(void 0!==e.id&&this._sendResponse(e.id,"EINVAL:unsupported transmission medium",null!==(s=e.quiet)&&void 0!==s?s:0),!0):(A||0===t.length||this._kittyStorage.storeImage(e.id,{data:new Blob([t]),width:null!==(r=e.width)&&void 0!==r?r:0,height:null!==(o=e.height)&&void 0!==o?o:0,format:null!==(a=e.format)&&void 0!==a?a:32,compression:null!==(n=e.compression)&&void 0!==n?n:""}),!0)}_handleTransmitDisplay(e,t,A){var i,s;if(A)return void 0!==e.id&&this._sendResponse(e.id,"EINVAL:invalid base64 data",null!==(i=e.quiet)&&void 0!==i?i:0),!0;this._handleTransmit(e,t,A);const r=null!==(s=e.id)&&void 0!==s?s:this._kittyStorage.lastImageId,o=this._kittyStorage.getImage(r);if(o){const t=this._displayImage(o,e);return void 0!==e.id?t.then(t=>{var A;return this._sendResponse(r,t?"OK":"EINVAL:image rendering failed",null!==(A=e.quiet)&&void 0!==A?A:0),!0}):t.then(()=>!0)}return!0}_handleQuery(e,t,A){var i,s,r,o,a,n;const h=null!==(i=e.id)&&void 0!==i?i:0,g=null!==(s=e.quiet)&&void 0!==s?s:0;if("d"!==(null!==(r=e.transmission)&&void 0!==r?r:"d"))return this._sendResponse(h,"EINVAL:unsupported transmission medium",g),!0;if(A)return this._sendResponse(h,"EINVAL:invalid base64 data",g),!0;if(0===t.length)return this._sendResponse(h,"OK",g),!0;const d=null!==(o=e.format)&&void 0!==o?o:32;if(100===d)this._sendResponse(h,"OK",g);else{const A=null!==(a=e.width)&&void 0!==a?a:0,i=null!==(n=e.height)&&void 0!==n?n:0;if(!A||!i)return this._sendResponse(h,"EINVAL:width and height required for raw pixel data",g),!0;const s=A*i*(32===d?4:3);if(t.length<s)return this._sendResponse(h,"EINVAL:insufficient pixel data",g),!0;this._sendResponse(h,"OK",g)}return!0}_handleDelete(e){var t;switch(null!==(t=e.deleteSelector)&&void 0!==t?t:"a"){case"a":case"A":this._cleanupAllPending(),this._kittyStorage.deleteAll();break;case"i":case"I":if(void 0!==e.id){const t=this._pendingTransmissions.get(e.id);t&&t.decoder.release(),this._removePendingEntry(e.id),this._kittyStorage.deleteById(e.id)}}return!0}_sendResponse(e,t,A,i){const s="OK"===t;if(s&&A>=1)return;if(!s&&A>=2)return;const r=`_Gi=${e}${i?`,p=${i}`:""};${t}\\`;this._coreTerminal._core.coreService.triggerDataEvent(r)}_displayImage(e,t){return this._decodeAndDisplay(e,t).then(()=>!0).catch(()=>!1)}async _decodeAndDisplay(e,t){var A,i,o,a,n,h,g;let d=await this._createBitmap(e);try{const l=Math.max(0,null!==(o=t.x)&&void 0!==o?o:0),I=Math.max(0,null!==(a=t.y)&&void 0!==a?a:0),c=t.sourceWidth||d.width-l,_=t.sourceHeight||d.height-I,C=Math.max(0,d.width-l),B=Math.max(0,d.height-I),Q=Math.max(0,Math.min(c,C)),m=Math.max(0,Math.min(_,B));if(0===Q||0===m)throw new Error("invalid source rectangle");if(0!==l||0!==I||Q!==d.width||m!==d.height){const e=await createImageBitmap(d,l,I,Q,m);d.close(),d=e}const E=(null===(A=this._renderer.dimensions)||void 0===A?void 0:A.css.cell.width)||r.CELL_SIZE_DEFAULT.width,u=(null===(i=this._renderer.dimensions)||void 0===i?void 0:i.css.cell.height)||r.CELL_SIZE_DEFAULT.height;let w,p;void 0!==t.columns&&void 0!==t.rows?(w=t.columns,p=t.rows):void 0!==t.columns?(w=t.columns,p=Math.max(1,Math.ceil(d.height/d.width*(w*E)/u))):void 0!==t.rows?(p=t.rows,w=Math.max(1,Math.ceil(d.width/d.height*(p*u)/E))):(w=Math.ceil(d.width/E),p=Math.ceil(d.height/u));let f=d.width,D=d.height;if(void 0===t.columns&&void 0===t.rows||(f=Math.round(w*E),D=Math.round(p*u)),f*D>this._opts.pixelLimit)throw new Error("image exceeds pixel limit");const y=this._coreTerminal._core.buffer,v=y.x,k=y.y,M=y.ybase,b=void 0!==t.zIndex&&t.zIndex<0?"bottom":"top";if(f!==d.width||D!==d.height){const e=await createImageBitmap(d,{resizeWidth:f,resizeHeight:D});d.close(),d=e}const S=Math.min(Math.max(0,null!==(n=t.xOffset)&&void 0!==n?n:0),E-1),L=Math.min(Math.max(0,null!==(h=t.yOffset)&&void 0!==h?h:0),u-1);if(0!==S||0!==L){const e=void 0!==t.columns?Math.round(w*E):d.width+S,A=void 0!==t.rows?Math.round(p*u):d.height+L,i=s.ImageRenderer.createCanvas(window.document,e,A),r=i.getContext("2d");if(!r)throw new Error("Failed to create offset canvas context");r.drawImage(d,S,L);const o=await createImageBitmap(i);if(i.width=i.height=0,d.close(),d=o,f=d.width,D=d.height,f*D>this._opts.pixelLimit)throw new Error("image exceeds pixel limit");void 0===t.columns&&(w=Math.ceil(d.width/E)),void 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s=[],r=A.readable.getReader();for(;;){const{done:e,value:t}=await r.read();if(e)break;s.push(t)}const o=s.reduce((e,t)=>e+t.length,0),a=new Uint8Array(o);let n=0;for(const e of s)a.set(e,n),n+=e.length;return a}get images(){return this._kittyStorage.images}get _kittyIdToStorageId(){return this._kittyStorage.kittyIdToStorageId}get pendingTransmissions(){return this._pendingTransmissions}}},470(e,t){Object.defineProperty(t,"__esModule",{value:!0}),t.parseKittyCommand=function(e){const t={},A=e.split(",");for(const e of A){const A=e.indexOf("=");if(-1===A)continue;const i=e.substring(0,A),s=e.substring(A+1);if("a"===i){t.action=s;continue}if("o"===i){t.compression=s;continue}if("t"===i){t.transmission=s;continue}if("d"===i){t.deleteSelector=s;continue}const r=parseInt(s,10);switch(i){case"f":t.format=r;break;case"i":t.id=r;break;case"I":t.imageNumber=r;break;case"s":t.width=r;break;case"v":t.height=r;break;case"x":t.x=r;break;case"y":t.y=r;break;case"w":t.sourceWidth=r;break;case"h":t.sourceHeight=r;break;case"X":t.xOffset=r;break;case"Y":t.yOffset=r;break;case"c":t.columns=r;break;case"r":t.rows=r;break;case"m":t.more=r;break;case"q":t.quiet=r;break;case"C":t.cursorMovement=r;break;case"z":t.zIndex=r;break;case"p":t.placementId=r}}return t}},235(e,t){Object.defineProperty(t,"__esModule",{value:!0}),t.KittyImageStorage=void 0;class A{constructor(e){this._storage=e,this._nextImageId=1,this._images=new Map,this._kittyIdToStorageId=new Map,this._storageIdToKittyId=new Map,this._handleStorageImageDeleted=e=>{const t=this._storageIdToKittyId.get(e);void 0!==t&&(this._kittyIdToStorageId.delete(t),this._storageIdToKittyId.delete(e),this._images.delete(t))},this._addImageOpts={scrolling:!0,layer:"top",zIndex:0,cursorPos:"iip"},this._previousOnImageDeleted=this._storage.onImageDeleted,this._wrappedOnImageDeleted=e=>{var t;null===(t=this._previousOnImageDeleted)||void 0===t||t.call(this,e),this._handleStorageImageDeleted(e)},this._storage.onImageDeleted=this._wrappedOnImageDeleted}reset(){this._nextImageId=1,this._images.clear(),this._kittyIdToStorageId.clear(),this._storageIdToKittyId.clear()}dispose(){this.reset(),this._storage.onImageDeleted===this._wrappedOnImageDeleted&&(this._storage.onImageDeleted=this._previousOnImageDeleted)}storeImage(e,t){const i=null!=e?e:this._nextImageId++,s=this._kittyIdToStorageId.get(i);return void 0!==s&&(this._storage.deleteImage(s),this._kittyIdToStorageId.delete(i),this._storageIdToKittyId.delete(s)),!this._images.has(i)&&this._images.size>=A._maxStoredImages&&this._evictUndisplayedImages(),this._images.set(i,Object.assign(Object.assign({},t),{id:i})),i}addImage(e,t,A,i,s){const r=this._kittyIdToStorageId.get(e);void 0!==r&&this._storageIdToKittyId.delete(r),this._addImageOpts.scrolling=A,this._addImageOpts.layer=i,this._addImageOpts.zIndex=s;const o=this._storage.addImage(t,this._addImageOpts);this._kittyIdToStorageId.set(e,o),this._storageIdToKittyId.set(o,e)}getImage(e){return this._images.get(e)}deleteById(e){this._images.delete(e);const t=this._kittyIdToStorageId.get(e);void 0!==t&&(this._storage.deleteImage(t),this._kittyIdToStorageId.delete(e),this._storageIdToKittyId.delete(t))}deleteAll(){this._images.clear();for(const e of this._kittyIdToStorageId.values())this._storage.deleteImage(e);this._kittyIdToStorageId.clear(),this._storageIdToKittyId.clear()}get images(){return this._images}get kittyIdToStorageId(){return this._kittyIdToStorageId}get lastImageId(){return this._nextImageId-1}_evictUndisplayedImages(){for(const[e]of this._images){if(this._images.size<=A._maxStoredImages/2)break;this._kittyIdToStorageId.has(e)||this._images.delete(e)}}}t.KittyImageStorage=A,A._maxStoredImages=256},669(e,t,A){Object.defineProperty(t,"__esModule",{value:!0});const i=(0,A(552).InWasm)({s:1,t:0,d:"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"}),s=new 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t=A(414),s=A(795),r=A(463),o=A(699),a=A(23),n=A(235),h=A(566),g=A(994),d=A(649),l={enableSizeReports:!0,pixelLimit:16777216,sixelSupport:!0,sixelScrolling:!0,sixelPaletteLimit:4096,sixelSizeLimit:33554432,storageLimit:128,showPlaceholder:!0,iipSupport:!0,iipSizeLimit:33554432,kittySupport:!0,kittySizeLimit:33554432};e.ImageAddon=class{constructor(e){this._disposables=[],this._handlers=new Map,this._onImageAdded=new t.Emitter,this.onImageAdded=this._onImageAdded.event,this._opts=Object.assign({},l,e),this._defaultOpts=Object.assign({},l,e)}dispose(){for(const e of this._disposables)e.dispose();this._disposables.length=0,this._handlers.clear(),this._onImageAdded.dispose()}_disposeLater(...e){for(const t of e)this._disposables.push(t)}activate(e){var t;if(this._terminal=e,this._renderer=new r.ImageRenderer(e),this._storage=new o.ImageStorage(e,this._renderer,this._opts),this._storage.onImageAdded=()=>this._onImageAdded.fire(),this._opts.enableSizeReports){const A=null!==(t=e.options.windowOptions)&&void 0!==t?t:{};A.getWinSizePixels=!0,A.getCellSizePixels=!0,A.getWinSizeChars=!0,e.options.windowOptions=A}if(this._disposeLater(this._renderer,this._storage,e.parser.registerCsiHandler({prefix:"?",final:"h"},e=>this._decset(e)),e.parser.registerCsiHandler({prefix:"?",final:"l"},e=>this._decrst(e)),e.parser.registerCsiHandler({final:"c"},e=>this._da1(e)),e.parser.registerCsiHandler({prefix:"?",final:"S"},e=>this._xtermGraphicsAttributes(e)),e.onRender(e=>{var t;return null===(t=this._storage)||void 0===t?void 0:t.render(e)}),e.parser.registerCsiHandler({intermediates:"!",final:"p"},()=>this.reset()),e.parser.registerEscHandler({final:"c"},()=>this.reset()),e._core._inputHandler.onRequestReset(()=>this.reset()),e.buffer.onBufferChange(()=>{var e;return null===(e=this._storage)||void 0===e?void 0:e.wipeAlternate()}),e.onResize(e=>{var t;return null===(t=this._storage)||void 0===t?void 0:t.viewportResize(e)})),this._opts.sixelSupport){const t=new g.SixelImageStorage(this._storage,this._opts,this._renderer,e),A=new h.SixelHandler(this._opts,t,e);this._handlers.set("sixel",A),this._disposeLater(e._core._inputHandler._parser.registerDcsHandler({final:"q"},A))}if(this._opts.iipSupport){const t=new d.IIPImageStorage(this._storage),A=new s.IIPHandler(this._opts,this._renderer,t,e);this._handlers.set("iip",A),this._disposeLater(e._core._inputHandler._parser.registerOscHandler(1337,A))}if(this._opts.kittySupport){const t=new n.KittyImageStorage(this._storage),A=new a.KittyGraphicsHandler(this._opts,this._renderer,t,e);this._handlers.set("kitty",A),this._disposeLater(t,A,e._core._inputHandler._parser.registerApcHandler({final:"G"},A))}}reset(){var e;this._opts.sixelScrolling=this._defaultOpts.sixelScrolling,this._opts.sixelPaletteLimit=this._defaultOpts.sixelPaletteLimit,null===(e=this._storage)||void 0===e||e.reset();for(const e of this._handlers.values())e.reset();return!1}get storageLimit(){var e;return(null===(e=this._storage)||void 0===e?void 0:e.getLimit())||-1}set storageLimit(e){var t;null===(t=this._storage)||void 0===t||t.setLimit(e),this._opts.storageLimit=e}get storageUsage(){return this._storage?this._storage.getUsage():-1}get showPlaceholder(){return this._opts.showPlaceholder}set showPlaceholder(e){var t;this._opts.showPlaceholder=e,null===(t=this._renderer)||void 0===t||t.showPlaceholder(e)}getImageAtBufferCell(e,t){var A;return null===(A=this._storage)||void 0===A?void 0:A.getImageAtBufferCell(e,t)}extractTileAtBufferCell(e,t){var A;return null===(A=this._storage)||void 0===A?void 0:A.extractTileAtBufferCell(e,t)}_report(e){var t;null===(t=this._terminal)||void 0===t||t._core.input(e,!1)}_decset(e){for(let t=0;t<e.length;++t)80===e[t]&&(this._opts.sixelScrolling=!1);return!1}_decrst(e){for(let t=0;t<e.length;++t)80===e[t]&&(this._opts.sixelScrolling=!0);return!1}_da1(e){return!!e[0]||!!this._opts.sixelSupport&&(this._report("[?62;4;9;22c"),!0)}_xtermGraphicsAttributes(e){var t,A,i,s,r,a;if(e.length<2)return!0;if(1===e[0])switch(e[1]){case 1:return this._report(`[?${e[0]};0;${this._opts.sixelPaletteLimit}S`),!0;case 2:this._opts.sixelPaletteLimit=this._defaultOpts.sixelPaletteLimit,this._report(`[?${e[0]};0;${this._opts.sixelPaletteLimit}S`);for(const e of this._handlers.values())e.reset();return!0;case 3:return e.length>2&&!(e[2]instanceof Array)&&e[2]<=4096?(this._opts.sixelPaletteLimit=e[2],this._report(`[?${e[0]};0;${this._opts.sixelPaletteLimit}S`)):this._report(`[?${e[0]};2S`),!0;case 4:return this._report(`[?${e[0]};0;4096S`),!0;default:return this._report(`[?${e[0]};2S`),!0}if(2===e[0])switch(e[1]){case 1:let n=null===(A=null===(t=this._renderer)||void 0===t?void 0:t.dimensions)||void 0===A?void 0:A.css.canvas.width,h=null===(s=null===(i=this._renderer)||void 0===i?void 0:i.dimensions)||void 0===s?void 0:s.css.canvas.height;if(!n||!h){const e=o.CELL_SIZE_DEFAULT;n=((null===(r=this._terminal)||void 0===r?void 0:r.cols)||80)*e.width,h=((null===(a=this._terminal)||void 0===a?void 0:a.rows)||24)*e.height}if(n*h<this._opts.pixelLimit)this._report(`[?${e[0]};0;${n.toFixed(0)};${h.toFixed(0)}S`);else{const t=Math.floor(Math.sqrt(this._opts.pixelLimit));this._report(`[?${e[0]};0;${t};${t}S`)}return!0;case 4:const g=Math.floor(Math.sqrt(this._opts.pixelLimit));return this._report(`[?${e[0]};0;${g};${g}S`),!0;default:return this._report(`[?${e[0]};2S`),!0}return this._report(`[?${e[0]};1S`),!0}}})(),i})());
|
||
+!function(e,t){"object"==typeof exports&&"object"==typeof module?module.exports=t():"function"==typeof define&&define.amd?define([],t):"object"==typeof exports?exports.ImageAddon=t():e.ImageAddon=t()}(globalThis,()=>(()=>{"use strict";var e={939(e,t){function i(e){return 255&e}function A(e){return e>>>8&255}function s(e){return e>>>16&255}function r(e,t,i,A=255){return((255&A)<<24|(255&i)<<16|(255&t)<<8|255&e)>>>0}function o(e,t,i){return Math.max(e,Math.min(i,t))}function a(e,t,i){return i<0&&(i+=1),i>1&&(i-=1),6*i<1?t+6*(e-t)*i:2*i<1?e:3*i<2?t+(e-t)*(4-6*i):t}function n(e,t,i){return(4278190080|Math.round(i/100*255)<<16|Math.round(t/100*255)<<8|Math.round(e/100*255))>>>0}Object.defineProperty(t,"__esModule",{value:!0}),t.DEFAULT_FOREGROUND=t.DEFAULT_BACKGROUND=t.PALETTE_ANSI_256=t.PALETTE_VT340_GREY=t.PALETTE_VT340_COLOR=t.normalizeHLS=t.normalizeRGB=t.nearestColorIndex=t.fromRGBA8888=t.toRGBA8888=t.alpha=t.blue=t.green=t.red=t.BIG_ENDIAN=void 0,t.BIG_ENDIAN=255===new Uint8Array(new Uint32Array([4278190080]).buffer)[0],t.BIG_ENDIAN&&console.warn("BE platform detected. This version of node-sixel works only on LE properly."),t.red=i,t.green=A,t.blue=s,t.alpha=function(e){return e>>>24&255},t.toRGBA8888=r,t.fromRGBA8888=function(e){return[255&e,e>>8&255,e>>16&255,e>>>24]},t.nearestColorIndex=function(e,t){const r=i(e),o=A(e),a=s(e);let n=Number.MAX_SAFE_INTEGER,h=-1;for(let e=0;e<t.length;++e){const i=r-t[e][0],A=o-t[e][1],s=a-t[e][2],g=i*i+A*A+s*s;if(!g)return e;g<n&&(n=g,h=e)}return h},t.normalizeRGB=n,t.normalizeHLS=function(e,t,i){return function(e,t,i){if(!i){const e=Math.round(255*t);return r(e,e,e)}const A=t<.5?t*(1+i):t+i-t*i,s=2*t-A;return r(o(0,255,Math.round(255*a(A,s,e+1/3))),o(0,255,Math.round(255*a(A,s,e))),o(0,255,Math.round(255*a(A,s,e-1/3))))}((e+240)/360,t/100,i/100)},t.PALETTE_VT340_COLOR=new Uint32Array([n(0,0,0),n(20,20,80),n(80,13,13),n(20,80,20),n(80,20,80),n(20,80,80),n(80,80,20),n(53,53,53),n(26,26,26),n(33,33,60),n(60,26,26),n(33,60,33),n(60,33,60),n(33,60,60),n(60,60,33),n(80,80,80)]),t.PALETTE_VT340_GREY=new Uint32Array([n(0,0,0),n(13,13,13),n(26,26,26),n(40,40,40),n(6,6,6),n(20,20,20),n(33,33,33),n(46,46,46),n(0,0,0),n(13,13,13),n(26,26,26),n(40,40,40),n(6,6,6),n(20,20,20),n(33,33,33),n(46,46,46)]),t.PALETTE_ANSI_256=(()=>{const e=[r(0,0,0),r(205,0,0),r(0,205,0),r(205,205,0),r(0,0,238),r(205,0,205),r(0,250,205),r(229,229,229),r(127,127,127),r(255,0,0),r(0,255,0),r(255,255,0),r(92,92,255),r(255,0,255),r(0,255,255),r(255,255,255)],t=[0,95,135,175,215,255];for(let i=0;i<6;++i)for(let A=0;A<6;++A)for(let s=0;s<6;++s)e.push(r(t[i],t[A],t[s]));for(let t=8;t<=238;t+=10)e.push(r(t,t,t));return new Uint32Array(e)})(),t.DEFAULT_BACKGROUND=r(0,0,0,255),t.DEFAULT_FOREGROUND=r(255,255,255,255)},591(e,t,i){Object.defineProperty(t,"__esModule",{value:!0}),t.decodeAsync=t.decode=t.Decoder=t.DecoderAsync=void 0;const A=i(939),s=i(199),r=function(e){if("undefined"!=typeof Buffer)return Buffer.from(e,"base64");const t=atob(e),i=new Uint8Array(t.length);for(let e=0;e<i.length;++e)i[e]=t.charCodeAt(e);return i}(s.LIMITS.BYTES);let o;const a=new Uint32Array;class n{constructor(){this.bandHandler=e=>1,this.modeHandler=e=>1}handle_band(e){return this.bandHandler(e)}mode_parsed(e){return this.modeHandler(e)}}const h={memoryLimit:134217728,sixelColor:A.DEFAULT_FOREGROUND,fillColor:A.DEFAULT_BACKGROUND,palette:A.PALETTE_VT340_COLOR,paletteLimit:s.LIMITS.PALETTE_SIZE,truncate:!0};function g(e){const t=new n,i={env:{handle_band:t.handle_band.bind(t),mode_parsed:t.mode_parsed.bind(t)}};return WebAssembly.instantiate(o||r,i).then(i=>(o=o||i.module,new d(e,i.instance||i,t)))}t.DecoderAsync=g;class d{constructor(e,t,i){if(this._PIXEL_OFFSET=s.LIMITS.MAX_WIDTH+4,this._canvas=a,this._bandWidths=[],this._maxWidth=0,this._minWidth=s.LIMITS.MAX_WIDTH,this._lastOffset=0,this._currentHeight=0,this._opts=Object.assign({},h,e),this._opts.paletteLimit>s.LIMITS.PALETTE_SIZE)throw new Error(`DecoderOptions.paletteLimit must not exceed ${s.LIMITS.PALETTE_SIZE}`);if(t)i.bandHandler=this._handle_band.bind(this),i.modeHandler=this._initCanvas.bind(this);else{const e=o||(o=new WebAssembly.Module(r));t=new WebAssembly.Instance(e,{env:{handle_band:this._handle_band.bind(this),mode_parsed:this._initCanvas.bind(this)}})}this._instance=t,this._wasm=this._instance.exports,this._chunk=new Uint8Array(this._wasm.memory.buffer,this._wasm.get_chunk_address(),s.LIMITS.CHUNK_SIZE),this._states=new Uint32Array(this._wasm.memory.buffer,this._wasm.get_state_address(),12),this._palette=new Uint32Array(this._wasm.memory.buffer,this._wasm.get_palette_address(),s.LIMITS.PALETTE_SIZE),this._palette.set(this._opts.palette),this._pSrc=new Uint32Array(this._wasm.memory.buffer,this._wasm.get_p0_address()),this._wasm.init(A.DEFAULT_FOREGROUND,0,this._opts.paletteLimit,0)}get _fillColor(){return this._states[0]}get _truncate(){return this._states[8]}get _rasterWidth(){return this._states[6]}get _rasterHeight(){return this._states[7]}get _width(){return this._states[2]?this._states[2]-4:0}get _height(){return this._states[3]}get _level(){return this._states[9]}get _mode(){return this._states[10]}get _paletteLimit(){return this._states[11]}_initCanvas(e){if(2===e){const e=this.width*this.height;if(e>this._canvas.length){if(this._opts.memoryLimit&&4*e>this._opts.memoryLimit)throw this.release(),new Error("image exceeds memory limit");this._canvas=new Uint32Array(e)}this._maxWidth=this._width}else if(1===e)if(2===this._level){const e=Math.min(this._rasterWidth,s.LIMITS.MAX_WIDTH)*this._rasterHeight;if(e>this._canvas.length){if(this._opts.memoryLimit&&4*e>this._opts.memoryLimit)throw this.release(),new Error("image exceeds memory limit");this._canvas=new Uint32Array(e)}}else this._canvas.length<65536&&(this._canvas=new Uint32Array(65536));return 0}_realloc(e,t){const i=e+t;if(i>this._canvas.length){if(this._opts.memoryLimit&&4*i>this._opts.memoryLimit)throw this.release(),new Error("image exceeds memory limit");const e=new Uint32Array(65536*Math.ceil(i/65536));e.set(this._canvas),this._canvas=e}}_handle_band(e){const t=this._PIXEL_OFFSET;let i=this._lastOffset;if(2===this._mode){let A=this.height-this._currentHeight,s=0;for(;s<6&&A>0;)this._canvas.set(this._pSrc.subarray(t*s,t*s+e),i+e*s),s++,A--;this._lastOffset+=e*s,this._currentHeight+=s}else if(1===this._mode){this._realloc(i,6*e),this._maxWidth=Math.max(this._maxWidth,e),this._minWidth=Math.min(this._minWidth,e);for(let A=0;A<6;++A)this._canvas.set(this._pSrc.subarray(t*A,t*A+e),i+e*A);this._bandWidths.push(e),this._lastOffset+=6*e,this._currentHeight+=6}return 0}get width(){return 1!==this._mode?this._width:Math.max(this._maxWidth,this._wasm.current_width())}get height(){return 1!==this._mode?this._height:this._wasm.current_width()?6*this._bandWidths.length+this._wasm.current_height():6*this._bandWidths.length}get palette(){return this._palette.subarray(0,this._paletteLimit)}get memoryUsage(){return this._canvas.byteLength+this._wasm.memory.buffer.byteLength+8*this._bandWidths.length}get properties(){return{width:this.width,height:this.height,mode:this._mode,level:this._level,truncate:!!this._truncate,paletteLimit:this._paletteLimit,fillColor:this._fillColor,memUsage:this.memoryUsage,rasterAttributes:{numerator:this._states[4],denominator:this._states[5],width:this._rasterWidth,height:this._rasterHeight}}}init(e=this._opts.fillColor,t=this._opts.palette,i=this._opts.paletteLimit,A=this._opts.truncate){this._wasm.init(this._opts.sixelColor,e,i,A?1:0),t&&this._palette.set(t.subarray(0,s.LIMITS.PALETTE_SIZE)),this._bandWidths.length=0,this._maxWidth=0,this._minWidth=s.LIMITS.MAX_WIDTH,this._lastOffset=0,this._currentHeight=0}decode(e,t=0,i=e.length){let A=t;for(;A<i;){const t=Math.min(i-A,s.LIMITS.CHUNK_SIZE);this._chunk.set(e.subarray(A,A+=t)),this._wasm.decode(0,t)}}decodeString(e,t=0,i=e.length){let A=t;for(;A<i;){const t=Math.min(i-A,s.LIMITS.CHUNK_SIZE);for(let i=0,s=A;i<t;++i,++s)this._chunk[i]=e.charCodeAt(s);A+=t,this._wasm.decode(0,t)}}get data32(){if(0===this._mode||!this.width||!this.height)return a;const e=this._wasm.current_width();if(2===this._mode){let t=this.height-this._currentHeight;if(t>0){const i=this._PIXEL_OFFSET;let A=this._lastOffset,s=0;for(;s<6&&t>0;)this._canvas.set(this._pSrc.subarray(i*s,i*s+e),A+e*s),s++,t--;t&&this._canvas.fill(this._fillColor,A+e*s)}return this._canvas.subarray(0,this.width*this.height)}if(1===this._mode){if(this._minWidth===this._maxWidth){let t=!1;if(e)if(e!==this._minWidth)t=!0;else{const t=this._PIXEL_OFFSET;let i=this._lastOffset;this._realloc(i,6*e);for(let A=0;A<6;++A)this._canvas.set(this._pSrc.subarray(t*A,t*A+e),i+e*A)}if(!t)return this._canvas.subarray(0,this.width*this.height)}const t=new Uint32Array(this.width*this.height);t.fill(this._fillColor);let i=0,A=0;for(let e=0;e<this._bandWidths.length;++e){const s=this._bandWidths[e];for(let e=0;e<6;++e)t.set(this._canvas.subarray(A,A+=s),i),i+=this.width}if(e){const A=this._PIXEL_OFFSET,s=this._wasm.current_height();for(let r=0;r<s;++r)t.set(this._pSrc.subarray(A*r,A*r+e),i+this.width*r)}return t}return a}get data8(){return new Uint8ClampedArray(this.data32.buffer,0,this.width*this.height*4)}release(){this._canvas=a,this._bandWidths.length=0,this._maxWidth=0,this._minWidth=s.LIMITS.MAX_WIDTH,this._wasm.init(A.DEFAULT_FOREGROUND,0,this._opts.paletteLimit,0)}}t.Decoder=d,t.decode=function(e,t){const i=new d(t);return i.init(),"string"==typeof e?i.decodeString(e):i.decode(e),{width:i.width,height:i.height,data32:i.data32,data8:i.data8}},t.decodeAsync=async function(e,t){const i=await g(t);return i.init(),"string"==typeof e?i.decodeString(e):i.decode(e),{width:i.width,height:i.height,data32:i.data32,data8:i.data8}}},199(e,t){Object.defineProperty(t,"__esModule",{value:!0}),t.LIMITS=void 0,t.LIMITS={CHUNK_SIZE:16384,PALETTE_SIZE:4096,MAX_WIDTH:16384,BYTES:"AGFzbQEAAAABJAdgAAF/YAJ/fwBgA39/fwF/YAF/AX9gAABgBH9/f38AYAF/AAIlAgNlbnYLaGFuZGxlX2JhbmQAAwNlbnYLbW9kZV9wYXJzZWQAAwMTEgQAAAAAAQQBAQUBAAACAgAGAwQFAXABBwcFBAEBBwcGCAF/AUGAihoLB9wBDgZtZW1vcnkCABFnZXRfc3RhdGVfYWRkcmVzcwADEWdldF9jaHVua19hZGRyZXNzAAQOZ2V0X3AwX2FkZHJlc3MABRNnZXRfcGFsZXR0ZV9hZGRyZXNzAAYEaW5pdAALBmRlY29kZQAMDWN1cnJlbnRfd2lkdGgADQ5jdXJyZW50X2hlaWdodAAOGV9faW5kaXJlY3RfZnVuY3Rpb25fdGFibGUBAAtfaW5pdGlhbGl6ZQACCXN0YWNrU2F2ZQARDHN0YWNrUmVzdG9yZQASCnN0YWNrQWxsb2MAEwkMAQBBAQsGCgcJDxACDAEBCq5UEgMAAQsFAEGgCAsGAEGQiQELBgBBsIkCCwUAQZAJC+okAQh/QeQIKAIAIQVB4AgoAgAhA0HoCCgCACEIIAFBkIkBaiIJQf8BOgAAIAAgAUgEQCAAQZCJAWohBgNAIAMhBCAGQQFqIQECQCAGLQAAQf8AcSIDQTBrQQlLBEAgASEGDAELQewIKAIAQQJ0QewIaiICKAIAIQADQCACIAMgAEEKbGpBMGsiADYCACABLQAAIQMgAUEBaiIGIQEgA0H/AHEiA0Ewa0EKSQ0ACwsCQAJAAkACQAJAAkACQAJ/AkACQCADQT9rIgBBP00EQCAERQ0BIARBIUYEQAJAQfAIKAIAIgFBASABGyIHIAhqIgFB1AgoAgAiA0gNACADQf//AEoNAANAIANBAnQiAkGgiQJqIgRBoAgpAwA3AwAgAkGoiQJqQaAIKQMANwMAIAJBsIkCakGgCCkDADcDACACQbiJAmpBoAgpAwA3AwAgAkHAiQJqQaAIKQMANwMAIAJByIkCakGgCCkDADcDACACQdCJAmpBoAgpAwA3AwAgAkHYiQJqQaAIKQMANwMAIAJB4IkCakGgCCkDADcDACACQeiJAmpBoAgpAwA3AwAgAkHwiQJqQaAIKQMANwMAIAJB+IkCakGgCCkDADcDACACQYCKAmpBoAgpAwA3AwAgAkGIigJqQaAIKQMANwMAIAJBkIoCakGgCCkDADcDACACQZiKAmpBoAgpAwA3AwAgAkGgigJqQaAIKQMANwMAIAJBqIoCakGgCCkDADcDACACQbCKAmpBoAgpAwA3AwAgAkG4igJqQaAIKQMANwMAIAJBwIoCakGgCCkDADcDACACQciKAmpBoAgpAwA3AwAgAkHQigJqQaAIKQMANwMAIAJB2IoCakGgCCkDADcDACACQeCKAmpBoAgpAwA3AwAgAkHoigJqQaAIKQMANwMAIAJB8IoCakGgCCkDADcDACACQfiKAmpBoAgpAwA3AwAgAkGAiwJqQaAIKQMANwMAIAJBiIsCakGgCCkDADcDACACQZCLAmpBoAgpAwA3AwAgAkGYiwJqQaAIKQMANwMAIAJBoIsCakGgCCkDADcDACACQaiLAmpBoAgpAwA3AwAgAkGwiwJqQaAIKQMANwMAIAJBuIsCakGgCCkDADcDACACQcCLAmpBoAgpAwA3AwAgAkHIiwJqQaAIKQMANwMAIAJB0IsCakGgCCkDADcDACACQdiLAmpBoAgpAwA3AwAgAkHgiwJqQaAIKQMANwMAIAJB6IsCakGgCCkDADcDACACQfCLAmpBoAgpAwA3AwAgAkH4iwJqQaAIKQMANwMAIAJBgIwCakGgCCkDADcDACACQYiMAmpBoAgpAwA3AwAgAkGQjAJqQaAIKQMANwMAIAJBmIwCakGgCCkDADcDACACQaCMAmpBoAgpAwA3AwAgAkGojAJqQaAIKQMANwMAIAJBsIwCakGgCCkDADcDACACQbiMAmpBoAgpAwA3AwAgAkHAjAJqQaAIKQMANwMAIAJByIwCakGgCCkDADcDACACQdCMAmpBoAgpAwA3AwAgAkHYjAJqQaAIKQMANwMAIAJB4IwCakGgCCkDADcDACACQeiMAmpBoAgpAwA3AwAgAkHwjAJqQaAIKQMANwMAIAJB+IwCakGgCCkDADcDACACQYCNAmpBoAgpAwA3AwAgAkGIjQJqQaAIKQMANwMAIAJBkI0CakGgCCkDADcDACACQZiNAmpBoAgpAwA3AwAgAkGwiQZqIARBgAT8CgAAQdQIKAIAQQJ0QcCJCmogBEGABPwKAABB1AgoAgBBAnRB0IkOaiAEQYAE/AoAAEHUCCgCAEECdEHgiRJqIARBgAT8CgAAQdQIKAIAQQJ0QfCJFmogBEGABPwKAABB1AhB1AgoAgAiAkGAAWoiAzYCACABIANIDQEgAkGA/wBIDQALCwJAIABFDQAgCEH//wBLDQBBgIABIAhrIAcgAUH//wBLGyECAkAgAEEBcUUNACACRQ0AIAhBAnRBoIkCaiEDIAIhBCACQQdxIgcEQANAIAMgBTYCACADQQRqIQMgBEEBayEEIAdBAWsiBw0ACwsgAkEBa0EHSQ0AA0AgAyAFNgIcIAMgBTYCGCADIAU2AhQgAyAFNgIQIAMgBTYCDCADIAU2AgggAyAFNgIEIAMgBTYCACADQSBqIQMgBEEIayIEDQALCwJAIABBAnFFDQAgAkUNACAIQQJ0QbCJBmohAyACIQQgAkEHcSIHBEADQCADIAU2AgAgA0EEaiEDIARBAWshBCAHQQFrIgcNAAsLIAJBAWtBB0kNAANAIAMgBTYCHCADIAU2AhggAyAFNgIUIAMgBTYCECADIAU2AgwgAyAFNgIIIAMgBTYCBCADIAU2AgAgA0EgaiEDIARBCGsiBA0ACwsCQCAAQQRxRQ0AIAJFDQAgCEECdEHAiQpqIQMgAiEEIAJBB3EiBwRAA0AgAyAFNgIAIANBBGohAyAEQQFrIQQgB0EBayIHDQALCyACQQFrQQdJDQADQCADIAU2AhwgAyAFNgIYIAMgBTYCFCADIAU2AhAgAyAFNgIMIAMgBTYCCCADIAU2AgQgAyAFNgIAIANBIGohAyAEQQhrIgQNAAsLAkAgAEEIcUUNACACRQ0AIAhBAnRB0IkOaiEDIAIhBCACQQdxIgcEQANAIAMgBTYCACADQQRqIQMgBEEBayEEIAdBAWsiBw0ACwsgAkEBa0EHSQ0AA0AgAyAFNgIcIAMgBTYCGCADIAU2AhQgAyAFNgIQIAMgBTYCDCADIAU2AgggAyAFNgIEIAMgBTYCACADQSBqIQMgBEEIayIEDQALCwJAIABBEHFFDQAgAkUNACAIQQJ0QeCJEmohAyACIQQgAkEHcSIHBEADQCADIAU2AgAgA0EEaiEDIARBAWshBCAHQQFrIgcNAAsLIAJBAWtBB0kNAANAIAMgBTYCHCADIAU2AhggAyAFNgIUIAMgBTYCECADIAU2AgwgAyAFNgIIIAMgBTYCBCADIAU2AgAgA0EgaiEDIARBCGsiBA0ACwsgAEEgcUUNACACRQ0AIAJBAWshByAIQQJ0QfCJFmohAyACQQdxIgQEQANAIAMgBTYCACADQQRqIQMgAkEBayECIARBAWsiBA0ACwsgB0EHSQ0AA0AgAyAFNgIcIAMgBTYCGCADIAU2AhQgAyAFNgIQIAMgBTYCDCADIAU2AgggAyAFNgIEIAMgBTYCACADQSBqIQMgAkEIayICDQALC0HcCEHcCCgCACAAcjYCACAGQQFqIgIgBi0AAEH/AHEiA0E/ayIAQT9LDQQaDAMLAkBB7AgoAgAiBEEBRgRAQfAIKAIAIgNBzAgoAgAiAUkNASADIAFwIQMMAQtB+AgoAgAhAkH0CCgCACEBAkACQCAEQQVHDQAgAUEBRw0AIAJB6QJODQQMAQsgAkHkAEoNA0H8CCgCAEHkAEoNA0GACSgCAEHkAEoNAwsCQCABRQ0AIAFBAkoNACACQfwIKAIAQYAJKAIAIAFBAnRBiAhqKAIAEQIAIQFB8AgoAgAiA0HMCCgCACICTwR/IAMgAnAFIAMLQQJ0QZAJaiABNgIAC0HwCCgCACIDQcwIKAIAIgFJDQAgAyABcCEDCyADQQJ0QZAJaigCACEFDAELIANB/QBxQSFHBEAgCCEBIAYhAgwECyAEQSNHDQQCQEHsCCgCACICQQFGBEBB8AgoAgAiAUHMCCgCACIASQ0BIAEgAHAhAQwBC0H4CCgCACEBQfQIKAIAIQACQAJAIAJBBUcNACAAQQFHDQAgAUHpAkgNAQwHCyABQeQASg0GQfwIKAIAQeQASg0GQYAJKAIAQeQASg0GCwJAIABFDQAgAEECSg0AIAFB/AgoAgBBgAkoAgAgAEECdEGICGooAgARAgAhAEHwCCgCACIBQcwIKAIAIgJPBH8gASACcAUgAQtBAnRBkAlqIAA2AgALQfAIKAIAIgFBzAgoAgAiAEkNACABIABwIQELIAFBAnRBkAlqKAIAIQUMBAsgCCEBIAYhAgtB1AgoAgAhBgNAAkAgASAGSA0AIAZB//8ASg0AIAZBAnQiBEGgiQJqIgZBoAgpAwA3AwAgBEGoiQJqQaAIKQMANwMAIARBsIkCakGgCCkDADcDACAEQbiJAmpBoAgpAwA3AwAgBEHAiQJqQaAIKQMANwMAIARByIkCakGgCCkDADcDACAEQdCJAmpBoAgpAwA3AwAgBEHYiQJqQaAIKQMANwMAIARB4IkCakGgCCkDADcDACAEQeiJAmpBoAgpAwA3AwAgBEHwiQJqQaAIKQMANwMAIARB+IkCakGgCCkDADcDACAEQYCKAmpBoAgpAwA3AwAgBEGIigJqQaAIKQMANwMAIARBkIoCakGgCCkDADcDACAEQZiKAmpBoAgpAwA3AwAgBEGgigJqQaAIKQMANwMAIARBqIoCakGgCCkDADcDACAEQbCKAmpBoAgpAwA3AwAgBEG4igJqQaAIKQMANwMAIARBwIoCakGgCCkDADcDACAEQciKAmpBoAgpAwA3AwAgBEHQigJqQaAIKQMANwMAIARB2IoCakGgCCkDADcDACAEQeCKAmpBoAgpAwA3AwAgBEHoigJqQaAIKQMANwMAIARB8IoCakGgCCkDADcDACAEQfiKAmpBoAgpAwA3AwAgBEGAiwJqQaAIKQMANwMAIARBiIsCakGgCCkDADcDACAEQZCLAmpBoAgpAwA3AwAgBEGYiwJqQaAIKQMANwMAIARBoIsCakGgCCkDADcDACAEQaiLAmpBoAgpAwA3AwAgBEGwiwJqQaAIKQMANwMAIARBuIsCakGgCCkDADcDACAEQcCLAmpBoAgpAwA3AwAgBEHIiwJqQaAIKQMANwMAIARB0IsCakGgCCkDADcDACAEQdiLAmpBoAgpAwA3AwAgBEHgiwJqQaAIKQMANwMAIARB6IsCakGgCCkDADcDACAEQfCLAmpBoAgpAwA3AwAgBEH4iwJqQaAIKQMANwMAIARBgIwCakGgCCkDADcDACAEQYiMAmpBoAgpAwA3AwAgBEGQjAJqQaAIKQMANwMAIARBmIwCakGgCCkDADcDACAEQaCMAmpBoAgpAwA3AwAgBEGojAJqQaAIKQMANwMAIARBsIwCakGgCCkDADcDACAEQbiMAmpBoAgpAwA3AwAgBEHAjAJqQaAIKQMANwMAIARByIwCakGgCCkDADcDACAEQdCMAmpBoAgpAwA3AwAgBEHYjAJqQaAIKQMANwMAIARB4IwCakGgCCkDADcDACAEQeiMAmpBoAgpAwA3AwAgBEHwjAJqQaAIKQMANwMAIARB+IwCakGgCCkDADcDACAEQYCNAmpBoAgpAwA3AwAgBEGIjQJqQaAIKQMANwMAIARBkI0CakGgCCkDADcDACAEQZiNAmpBoAgpAwA3AwAgBEGwiQZqIAZBgAT8CgAAQdQIKAIAQQJ0QcCJCmogBkGABPwKAABB1AgoAgBBAnRB0IkOaiAGQYAE/AoAAEHUCCgCAEECdEHgiRJqIAZBgAT8CgAAQdQIKAIAQQJ0QfCJFmogBkGABPwKAABB1AhB1AgoAgBBgAFqIgY2AgALIAFB//8ATQRAIABBAXEgAWxBAnRBoIkCaiAFNgIAIABBAXZBAXEgAWxBAnRBsIkGaiAFNgIAIABBAnZBAXEgAWxBAnRBwIkKaiAFNgIAIABBA3ZBAXEgAWxBAnRB0IkOaiAFNgIAIABBBHZBAXEgAWxBAnRB4IkSaiAFNgIAIABBBXYgAWxBAnRB8IkWaiAFNgIAQdQIKAIAIQYLIAFBAWohAUHcCEHcCCgCACAAcjYCACACLQAAIQAgAkEBaiIEIQIgAEH/AHEiA0E/ayIAQcAASQ0ACyAECyECQQAhBCACIQYgASEIIANB/QBxQSFGDQELIANBJGsOCgEDAwMDAwMDAwIDC0HsCEIBNwIADAQLQdgIIAFB2AgoAgAiACAAIAFIGyIAQYCAASAAQYCAAUgbNgIADAILQegIIAFB2AgoAgAiACAAIAFIGyIAQYCAASAAQYCAAUgbIgA2AgBB2AggADYCACAAQQRrEAAEQEHoCEEENgIAQdgIQQQ2AgBB0AhBATYCAA8LEAgMAQsCQCADQTtHDQBB7AgoAgAiAEEHSg0AQewIIABBAWo2AgAgAEECdEHwCGpBADYCAAsgAiEGIAQhAyABIQgMAQtBBCEIIAIhBiAEIQMLIAYgCUkNAAsLQeQIIAU2AgBB4AggAzYCAEHoCCAINgIAC9ELAgF+CH9B2AhCBDcDAEGojQJBoAgpAwAiADcDAEGgjQIgADcDAEGYjQIgADcDAEGQjQIgADcDAEGIjQIgADcDAEGAjQIgADcDAEH4jAIgADcDAEHwjAIgADcDAEHojAIgADcDAEHgjAIgADcDAEHYjAIgADcDAEHQjAIgADcDAEHIjAIgADcDAEHAjAIgADcDAEG4jAIgADcDAEGwjAIgADcDAEGojAIgADcDAEGgjAIgADcDAEGYjAIgADcDAEGQjAIgADcDAEGIjAIgADcDAEGAjAIgADcDAEH4iwIgADcDAEHwiwIgADcDAEHoiwIgADcDAEHgiwIgADcDAEHYiwIgADcDAEHQiwIgADcDAEHIiwIgADcDAEHAiwIgADcDAEG4iwIgADcDAEGwiwIgADcDAEGoiwIgADcDAEGgiwIgADcDAEGYiwIgADcDAEGQiwIgADcDAEGIiwIgADcDAEGAiwIgADcDAEH4igIgADcDAEHwigIgADcDAEHoigIgADcDAEHgigIgADcDAEHYigIgADcDAEHQigIgADcDAEHIigIgADcDAEHAigIgADcDAEG4igIgADcDAEGwigIgADcDAEGoigIgADcDAEGgigIgADcDAEGYigIgADcDAEGQigIgADcDAEGIigIgADcDAEGAigIgADcDAEH4iQIgADcDAEHwiQIgADcDAEHoiQIgADcDAEHgiQIgADcDAEHYiQIgADcDAEHQiQIgADcDAEHIiQIgADcDAEHAiQIgADcDAEG4iQIgADcDAEGwiQIgADcDAEGoCCgCACIEQf8AakGAAW0hCAJAIARBgQFIDQBBASEBIAhBAiAIQQJKG0EBayICQQFxIQMgBEGBAk4EQCACQX5xIQIDQCABQQl0IgdBEHJBoIkCakGwiQJBgAT8CgAAIAdBsI0CakGwiQJBgAT8CgAAIAFBAmohASACQQJrIgINAAsLIANFDQAgAUEJdEEQckGgiQJqQbCJAkGABPwKAAALAkAgBEEBSA0AIAhBASAIQQFKGyIDQQFxIQUCQCADQQFrIgdFBEBBACEBDAELIANB/v///wdxIQJBACEBA0AgAUEJdCIGQRByQbCJBmpBsIkCQYAE/AoAACAGQZAEckGwiQZqQbCJAkGABPwKAAAgAUECaiEBIAJBAmsiAg0ACwsgBQRAIAFBCXRBEHJBsIkGakGwiQJBgAT8CgAACyAEQQFIDQAgA0EBcSEFIAcEfyADQf7///8HcSECQQAhAQNAIAFBCXQiBkEQckHAiQpqQbCJAkGABPwKAAAgBkGQBHJBwIkKakGwiQJBgAT8CgAAIAFBAmohASACQQJrIgINAAsgAUEHdEEEcgVBBAshASAFBEAgAUECdEHAiQpqQbCJAkGABPwKAAALIARBAUgNACADQQFxIQUgBwR/IANB/v///wdxIQJBACEBA0AgAUEJdCIGQRByQdCJDmpBsIkCQYAE/AoAACAGQZAEckHQiQ5qQbCJAkGABPwKAAAgAUECaiEBIAJBAmsiAg0ACyABQQd0QQRyBUEECyEBIAUEQCABQQJ0QdCJDmpBsIkCQYAE/AoAAAsgBEEBSA0AIANBAXEhBSAHBH8gA0H+////B3EhAkEAIQEDQCABQQl0IgZBEHJB4IkSakGwiQJBgAT8CgAAIAZBkARyQeCJEmpBsIkCQYAE/AoAACABQQJqIQEgAkECayICDQALIAFBB3RBBHIFQQQLIQEgBQRAIAFBAnRB4IkSakGwiQJBgAT8CgAACyAEQQFIDQAgA0EBcSEEIAcEfyADQf7///8HcSECQQAhAQNAIAFBCXQiA0EQckHwiRZqQbCJAkGABPwKAAAgA0GQBHJB8IkWakGwiQJBgAT8CgAAIAFBAmohASACQQJrIgINAAsgAUEHdEEEcgVBBAshASAERQ0AIAFBAnRB8IkWakGwiQJBgAT8CgAAC0HUCCAIQQd0QQRyNgIAC58TAgh/AX5B5AgoAgAhA0HgCCgCACECQegIKAIAIQcgAUGQiQFqIglB/wE6AAAgACABSARAIABBkIkBaiEIA0AgAiEEIAhBAWohAQJAIAgtAABB/wBxIgJBMGtBCUsEQCABIQgMAQtB7AgoAgBBAnRB7AhqIgUoAgAhAANAIAUgAiAAQQpsakEwayIANgIAIAEtAAAhAiABQQFqIgghASACQf8AcSICQTBrQQpJDQALCwJAAkACQAJAAkACQAJ/AkAgAkE/ayIAQT9NBEAgBEUNASAEQSFGBEBB8AgoAgAiAUEBIAEbIgQgB2ohAQJAIABFDQAgB0H//wBLDQBBgIABIAdrIAQgAUH//wBLGyEFAkAgAEEBcUUNACAHQQJ0QaCJAmohAiAFIgRBB3EiBgRAA0AgAiADNgIAIAJBBGohAiAEQQFrIQQgBkEBayIGDQALCyAFQQFrQQdJDQADQCACIAM2AhwgAiADNgIYIAIgAzYCFCACIAM2AhAgAiADNgIMIAIgAzYCCCACIAM2AgQgAiADNgIAIAJBIGohAiAEQQhrIgQNAAsLAkAgAEECcUUNACAHQQJ0QbCJBmohAiAFIgRBB3EiBgRAA0AgAiADNgIAIAJBBGohAiAEQQFrIQQgBkEBayIGDQALCyAFQQFrQQdJDQADQCACIAM2AhwgAiADNgIYIAIgAzYCFCACIAM2AhAgAiADNgIMIAIgAzYCCCACIAM2AgQgAiADNgIAIAJBIGohAiAEQQhrIgQNAAsLAkAgAEEEcUUNACAHQQJ0QcCJCmohAiAFIgRBB3EiBgRAA0AgAiADNgIAIAJBBGohAiAEQQFrIQQgBkEBayIGDQALCyAFQQFrQQdJDQADQCACIAM2AhwgAiADNgIYIAIgAzYCFCACIAM2AhAgAiADNgIMIAIgAzYCCCACIAM2AgQgAiADNgIAIAJBIGohAiAEQQhrIgQNAAsLAkAgAEEIcUUNACAHQQJ0QdCJDmohAiAFIgRBB3EiBgRAA0AgAiADNgIAIAJBBGohAiAEQQFrIQQgBkEBayIGDQALCyAFQQFrQQdJDQADQCACIAM2AhwgAiADNgIYIAIgAzYCFCACIAM2Ah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s=Math.ceil(4*this._opts.iipSizeLimit/3),r=Math.min(1048576,s);this._dec=new o.default(0,s,r),this._qoiDec=new a.default(0)}reset(){this._generation++,this._hp.reset(),this._dec.release(),this._qoiDec.release()}start(){this._aborted=!1,this._hp.reset()}put(e,t,i){if(!this._aborted)if(4===this._hp.state)0!==this._dec.put(e.subarray(t,i))&&(this._dec.release(),this._aborted=!0);else{const A=this._hp.parse(e,t,i);if(-1===A)return void(this._aborted=!0);if(A>0){if(1===this._hp.fields.type){if(this._isMultipart&&(this._isMultipart=!1,this._abortMulti=!1,this._dec.release()),this._header=Object.assign({},g,this._hp.fields),!this._header.inline)return void(this._aborted=!0);if(!this._initDecoder())return void(this._aborted=!0)}else if(this._abortMulti)return void(this._aborted=!0);0!==this._dec.put(e.subarray(A,i))&&(this._dec.release(),this._aborted=!0,this._isMultipart&&(this._abortMulti=!0))}}}end(e){var t,i,A;if(this._aborted)return!0;if(4!==this._hp.state&&this._hp.end())return!0;const o=this._hp.fields.type;if(3===o)return!0;if(5===o){let e=r.CELL_SIZE_DEFAULT.width,i=r.CELL_SIZE_DEFAULT.height;this._renderer.dimensions&&(e=this._renderer.dimensions.css.canvas.width/this._coreTerminal.cols,i=this._renderer.dimensions.css.canvas.height/this._coreTerminal.rows);const s=null!==(A=null===(t=this._coreTerminal._core._coreBrowserService)||void 0===t?void 0:t.dpr)&&void 0!==A?A:1,o=`]1337;ReportCellSize=${i.toFixed(3)};${e.toFixed(3)};${s.toFixed(3)}\\`;return this._coreTerminal.input(o,!1),!0}if(2===o)return this._header=Object.assign({},g,this._hp.fields),this._isMultipart=!0,this._abortMulti=!1,this._dec.release(),this._initDecoder()||(this._abortMulti=!0),!0;if(4===o){if(!this._isMultipart)return!0;if(this._isMultipart=!1,this._abortMulti||2!==this._header.type)return!0}let a,n,d=0,l=0,I=h.UNSUPPORTED_TYPE;if((a=e)&&((a=!this._dec.end())?(I=(0,h.imageType)(this._dec.data8),(a="unsupported"!==I.mime)?(d=I.width,l=I.height,(a=d&&l&&d*l<this._opts.pixelLimit)?([d,l]=this._resize(d,l).map(Math.floor),a=d&&l&&d*l<this._opts.pixelLimit):console.warn(`IIP: image dimension issue ${I.width}x${I.height}`)):console.warn("IIP: unsupported image type")):console.warn("IIP: error during BASE64 decoding")),!a)return this._dec.release(),!0;if("image/qoi"===I.mime){let e;try{e=this._qoiDec.decode(this._dec.data8)}catch(e){return console.warn("IIP: could not decode QOI image",e),this._dec.release(),this._qoiDec.release(),!0}if(n=new ImageData(new Uint8ClampedArray(e.buffer,e.byteOffset,e.byteLength),this._qoiDec.width,this._qoiDec.height),this._qoiDec.release(),d===this._qoiDec.width&&l===this._qoiDec.height){this._dec.release();const e=s.ImageRenderer.createCanvas(void 0,this._qoiDec.width,this._qoiDec.height);return null===(i=e.getContext("2d"))||void 0===i||i.putImageData(n,0,0),this._storage.addImage(e),!0}}else n=new Blob([this._dec.data8],{type:I.mime});this._dec.release();const c=this._generation;return createImageBitmap(n,{resizeWidth:d,resizeHeight:l}).then(e=>c!==this._generation?(e.close(),!0):(this._storage.addImage(e),!0)).catch(e=>(console.warn(`IIP: decoding error ${I.mime} ${I.width}x${I.height}`,e),!0))}_initDecoder(){try{return this._dec.init(),!0}catch(e){return console.warn("IIP: could not allocate decoder",e),this._dec.release(),!1}}_resize(e,t){var i,A,s,o;const a=(null===(i=this._renderer.dimensions)||void 0===i?void 0:i.css.cell.width)||r.CELL_SIZE_DEFAULT.width,n=(null===(A=this._renderer.dimensions)||void 0===A?void 0:A.css.cell.height)||r.CELL_SIZE_DEFAULT.height,h=(null===(s=this._renderer.dimensions)||void 0===s?void 0:s.css.canvas.width)||a*this._coreTerminal.cols,g=(null===(o=this._renderer.dimensions)||void 0===o?void 0:o.css.canvas.height)||n*this._coreTerminal.rows,d=this._dim(this._header.width,h,a),l=this._dim(this._header.height,g,n);if(!d&&!l){const i=h/e,A=(g-n)/t,s=Math.min(i,A);return s<1?[e*s,t*s]:[e,t]}return d?!this._header.preserveAspectRatio&&d&&l?[d,l]:[d,t*d/e]:[e*l/t,l]}_dim(e,t,i){return"auto"===e?0:e.endsWith("%")?parseInt(e.slice(0,-1),10)*t/100:e.endsWith("px")?parseInt(e.slice(0,-2),10):parseInt(e,10)*i}}},389(e,t){function i(e){let t="";for(let i=0;i<e.length;++i)t+=String.fromCharCode(e[i]);return t}function A(e){let t=0;for(let i=0;i<e.length;++i){if(e[i]<48||e[i]>57)throw new Error("illegal char");t=10*t+e[i]-48}return t}function s(e){const t=i(e);if(!t.match(/^((auto)|(\d+?((px)|(%)){0,1}))$/))throw new Error("illegal size");return t}Object.defineProperty(t,"__esModule",{value:!0}),t.HeaderParser=void 0;const r={inline:A,size:A,name:function(e){if("undefined"!=typeof Buffer)return Buffer.from(i(e),"base64").toString();const t=atob(i(e)),A=new Uint8Array(t.length);for(let e=0;e<A.length;++e)A[e]=t.charCodeAt(e);return(new TextDecoder).decode(A)},width:s,height:s,preserveAspectRatio:A},o=[70,105,108,101],a=[77,117,108,116,105,112,97,114,116,70,105,108,101],n=[70,105,108,101,80,97,114,116],h=[70,105,108,101,69,110,100],g=[82,101,112,111,114,116,67,101,108,108,83,105,122,101],d=1024;t.HeaderParser=class{constructor(){this.state=0,this._buffer=new Uint32Array(d),this._position=0,this._key="",this.fields={}}reset(){this._buffer.fill(0),this.state=0,this._position=0,this.fields={},this._key=""}end(){if(0===this.state){if(this._position===h.length){for(let e=0;e<h.length;++e)if(this._buffer[e]!==h[e])return this._a();return this.fields.type=4,this.state=4,0}if(this._position===g.length){for(let e=0;e<g.length;++e)if(this._buffer[e]!==g[e])return this._a();return this.fields.type=5,this.state=4,0}return this._a()}return 4===this.state?0:3===this.state&&2===this.fields.type&&this._storeValue(this._position)?(this.state=4,0):this._a()}parse(e,t,i){let A=this.state,s=this._position;const r=this._buffer;if(1===A||4===A)return-1;if(0===A&&s>14)return-1;for(let h=t;h<i;++h){const t=e[h];switch(t){case 59:if(!this._storeValue(s))return this._a();A=2,s=0;break;case 61:if(0===A){if(70===r[0]){let e=0;for(;e<o.length;++e)if(r[e]!==o[e])return this._a();if(this.fields.type=1,s===n.length){for(;e<n.length;++e)if(r[e]!==n[e])return this._a();return this.fields.type=3,this.state=4,h+1}}else{if(77!==r[0])return this._a();for(let e=0;e<a.length;++e)if(r[e]!==a[e])return this._a();this.fields.type=2}A=2,s=0}else if(2===A){if(!this._storeKey(s))return this._a();A=3,s=0}else if(3===A){if(s>=d)return this._a();r[s++]=t}break;case 58:return 3!==A||this._storeValue(s)?(this.state=4,h+1):this._a();default:if(s>=d)return this._a();r[s++]=t}}return this.state=A,this._position=s,-2}_a(){return this.fields.type=0,this.state=1,-1}_storeKey(e){const t=i(this._buffer.subarray(0,e));return!!t&&(this._key=t,this.fields[t]=null,!0)}_storeValue(e){if(this._key){try{const t=this._buffer.slice(0,e);this.fields[this._key]=r[this._key]?r[this._key](t):t}catch(e){return!1}return!0}return!1}}},649(e,t){Object.defineProperty(t,"__esModule",{value:!0}),t.IIPImageStorage=void 0,t.IIPImageStorage=class{constructor(e){this._storage=e,this._addImageOpts={scrolling:!0,layer:"top",zIndex:0,cursorPos:"iip"}}addImage(e){this._storage.addImage(e,this._addImageOpts)}}},462(e,t){Object.defineProperty(t,"__esModule",{value:!0}),t.UNSUPPORTED_TYPE=void 0,t.imageType=function(e){if(e.length<32)return t.UNSUPPORTED_TYPE;const i=new Uint32Array(e.buffer,e.byteOffset,8);if(1196314761===i[0]&&169478669===i[1]&&1380206665===i[3])return{mime:"image/png",width:e[16]<<24|e[17]<<16|e[18]<<8|e[19],height:e[20]<<24|e[21]<<16|e[22]<<8|e[23]};if(255===e[0]&&216===e[1]&&255===e[2]){const[t,i]=function(e){const t=e.length;let i=4,A=e[i]<<8|e[i+1];for(;;){if(i+=A,i>=t)return[0,0];if(255!==e[i])return[0,0];if(192===e[i+1]||194===e[i+1])return i+8<t?[e[i+7]<<8|e[i+8],e[i+5]<<8|e[i+6]]:[0,0];i+=2,A=e[i]<<8|e[i+1]}}(e);return{mime:"image/jpeg",width:t,height:i}}if(944130375===i[0]&&(55===e[4]||57===e[4])&&97===e[5])return{mime:"image/gif",width:e[7]<<8|e[6],height:e[9]<<8|e[8]};if(1718185841===i[0])return{mime:"image/qoi",width:e[4]<<24|e[5]<<16|e[6]<<8|e[7],height:e[8]<<24|e[9]<<16|e[10]<<8|e[11]};if(1179011410===i[0]&&1346520407===i[2]&&3690582==(16777215&i[3])){switch(e[15]){case 88:return{mime:"image/webp",width:1+(e[24]|e[25]<<8|e[26]<<16),height:1+(e[27]|e[28]<<8|e[29]<<16)};case 76:if(47!==e[20])return t.UNSUPPORTED_TYPE;const i=e[21]|e[22]<<8|e[23]<<16|e[24]<<24;return{mime:"image/webp",width:1+(16383&i),height:1+(i>>>14&16383)};case 32:return 157!==e[23]||1!==e[24]||42!==e[25]?t.UNSUPPORTED_TYPE:{mime:"image/webp",width:16383&(e[26]|e[27]<<8),height:16383&(e[28]|e[29]<<8)}}return t.UNSUPPORTED_TYPE}if(1887007846===i[1]&&(1718187617===i[2]||1936291425===i[2])){let i=-1;const A=Math.min(e.length-16,1024);for(let t=8;t<A;t++)if(105===e[t]&&115===e[t+1]&&112===e[t+2]&&101===e[t+3]){i=t;break}if(-1!==i){const t=e[i+8]<<24|e[i+9]<<16|e[i+10]<<8|e[i+11],A=e[i+12]<<24|e[i+13]<<16|e[i+14]<<8|e[i+15];if(t>0&&A>0)return{mime:"image/avif",width:t,height:A}}return t.UNSUPPORTED_TYPE}return t.UNSUPPORTED_TYPE},t.UNSUPPORTED_TYPE={mime:"unsupported",width:0,height:0}},463(e,t,i){Object.defineProperty(t,"__esModule",{value:!0}),t.ImageRenderer=void 0;const A=i(939),s=i(426);class r extends s.Disposable{get canvas(){var e;return null===(e=this._layers.get("top"))||void 0===e?void 0:e.canvas}static createCanvas(e,t,i){const A=(null!=e?e:document).createElement("canvas");return A.width=0|t,A.height=0|i,A}static createImageData(e,t,i,A){if("function"!=typeof ImageData){const s=e.createImageData(t,i);return A&&s.data.set(new Uint8ClampedArray(A,0,t*i*4)),s}return A?new ImageData(new Uint8ClampedArray(A,0,t*i*4),t,i):new ImageData(t,i)}static createImageBitmap(e){return"function"!=typeof createImageBitmap?Promise.resolve(void 0):createImageBitmap(e)}constructor(e){super(),this._terminal=e,this._layers=new Map,this._optionsRefresh=this._register(new s.MutableDisposable),this._oldOpen=this._terminal._core.open,this._terminal._core.open=e=>{var t;null===(t=this._oldOpen)||void 0===t||t.call(this._terminal._core,e),this._open()},this._terminal._core.screenElement&&this._open(),this._optionsRefresh.value=this._terminal._core.optionsService.onOptionChange(e=>{var t;"fontSize"===e&&(this.rescaleCanvas(),null===(t=this._renderService)||void 0===t||t.refreshRows(0,this._terminal.rows))}),this._register((0,s.toDisposable)(()=>{var e;this.removeLayerFromDom(),this.removeLayerFromDom("bottom"),this._terminal._core&&this._oldOpen&&(this._terminal._core.open=this._oldOpen,this._oldOpen=void 0),this._renderService&&this._oldSetRenderer&&(this._renderService.setRenderer=this._oldSetRenderer,this._oldSetRenderer=void 0),this._renderService=void 0,this._layers.clear(),null===(e=this._placeholderBitmap)||void 0===e||e.close(),this._placeholderBitmap=void 0,this._placeholder=void 0}))}showPlaceholder(e){var t,i;e?this._placeholder||-1===this.cellSize.height||this._createPlaceHolder(Math.max(this.cellSize.height+1,24)):(null===(t=this._placeholderBitmap)||void 0===t||t.close(),this._placeholderBitmap=void 0,this._placeholder=void 0),null===(i=this._renderService)||void 0===i||i.refreshRows(0,this._terminal.rows)}get dimensions(){return this._terminal.dimensions}get cellSize(){var e,t;return{width:(null===(e=this.dimensions)||void 0===e?void 0:e.css.cell.width)||-1,height:(null===(t=this.dimensions)||void 0===t?void 0:t.css.cell.height)||-1}}clearLines(e,t,i){var A,s,r,o,a;const n=e*((null===(A=this.dimensions)||void 0===A?void 0:A.css.cell.height)||0),h=(null===(s=this.dimensions)||void 0===s?void 0:s.css.canvas.width)||0,g=(t+1-e)*((null===(r=this.dimensions)||void 0===r?void 0:r.css.cell.height)||0);i&&"top"!==i||null===(o=this._layers.get("top"))||void 0===o||o.clearRect(0,n,h,g),i&&"bottom"!==i||null===(a=this._layers.get("bottom"))||void 0===a||a.clearRect(0,n,h,g)}clearAll(e){if(!e||"top"===e){const e=this._layers.get("top");null==e||e.clearRect(0,0,e.canvas.width,e.canvas.height)}if(!e||"bottom"===e){const e=this._layers.get("bottom");null==e||e.clearRect(0,0,e.canvas.width,e.canvas.height)}}draw(e,t,i,A,s=1){const r=this._layers.get(e.layer);if(!r)return;const{width:o,height:a}=this.cellSize;if(-1===o||-1===a)return;this._rescaleImage(e,o,a);const n=e.actual,{width:h,height:g}=e.actualCellSize,d=Math.ceil(n.width/h),l=t%d*h,I=Math.floor(t/d)*g,c=i*o,_=A*a,C=s*h+l>n.width?n.width-l:s*h,B=I+g>n.height?n.height-I:g;r.drawImage(n,Math.floor(l),Math.floor(I),Math.ceil(C),Math.ceil(B),Math.floor(c),Math.floor(_),Math.ceil(C*o/h),Math.ceil(B*a/g))}extractTile(e,t){const{width:i,height:A}=this.cellSize;if(-1===i||-1===A)return;this._rescaleImage(e,i,A);const s=e.actual,{width:o,height:a}=e.actualCellSize,n=Math.ceil(s.width/o),h=t%n*o,g=Math.floor(t/n)*a,d=o+h>s.width?s.width-h:o,l=g+a>s.height?s.height-g:a,I=r.createCanvas(this.document,Math.ceil(d*i/o),Math.ceil(l*A/a)),c=I.getContext("2d");return c?(c.drawImage(s,Math.floor(h),Math.floor(g),Math.floor(d),Math.floor(l),0,0,I.width,I.height),I):void 0}drawPlaceholder(e,t,i=1){var A;const s=this._layers.get("top");if(s){const{width:r,height:o}=this.cellSize;if(-1===r||-1===o)return;if(this._placeholder?o>=this._placeholder.height&&this._createPlaceHolder(o+1):this._createPlaceHolder(Math.max(o+1,24)),!this._placeholder)return;s.drawImage(null!==(A=this._placeholderBitmap)&&void 0!==A?A:this._placeholder,e*r,t*o%2?0:1,r*i,o,e*r,t*o,r*i,o)}}rescaleCanvas(){var e,t;const i=(null===(e=this.dimensions)||void 0===e?void 0:e.css.canvas.width)||0,A=(null===(t=this.dimensions)||void 0===t?void 0:t.css.canvas.height)||0;for(const e of this._layers.values())e.canvas.width===i&&e.canvas.height===A||(e.canvas.width=i,e.canvas.height=A)}_rescaleImage(e,t,i){if(t===e.actualCellSize.width&&i===e.actualCellSize.height)return;const{width:A,height:s}=e.origCellSize;if(t===A&&i===s)return e.actual=e.orig,e.actualCellSize.width=A,void(e.actualCellSize.height=s);const o=Math.ceil(e.orig.width*t/A),a=Math.ceil(e.orig.height*i/s);if(o*a>e.orig.width*e.orig.height)return e.actual=e.orig,e.actualCellSize.width=A,void(e.actualCellSize.height=s);const n=r.createCanvas(this.document,o,a),h=n.getContext("2d");h&&(h.drawImage(e.orig,0,0,n.width,n.height),e.actual=n,e.actualCellSize.width=t,e.actualCellSize.height=i)}_open(){this._renderService=this._terminal._core._renderService,this._oldSetRenderer=this._renderService.setRenderer.bind(this._renderService),this._renderService.setRenderer=e=>{var t;for(const e of[...this._layers.keys()])this.removeLayerFromDom(e);null===(t=this._oldSetRenderer)||void 0===t||t.call(this._renderService,e)}}insertLayerToDom(e="top"){var t,i;if(!this.document||!this._terminal._core.screenElement)return void console.warn("image addon: cannot insert output canvas to DOM, missing document or screenElement");if(this._layers.has(e))return;const A=r.createCanvas(this.document,(null===(t=this.dimensions)||void 0===t?void 0:t.css.canvas.width)||0,(null===(i=this.dimensions)||void 0===i?void 0:i.css.canvas.height)||0);A.classList.add(`xterm-image-layer-${e}`);const s=this._terminal._core.screenElement;s.style.isolation="isolate","bottom"===e?(A.style.zIndex="-1",s.insertBefore(A,s.firstChild)):(A.style.zIndex="0",s.appendChild(A));const o=A.getContext("2d",{alpha:!0});o?(this._layers.set(e,o),this.clearAll(e)):A.remove()}removeLayerFromDom(e="top"){const t=this._layers.get(e);t&&(t.canvas.remove(),this._layers.delete(e))}hasLayer(e){return this._layers.has(e)}_createPlaceHolder(e=24){var t;null===(t=this._placeholderBitmap)||void 0===t||t.close(),this._placeholderBitmap=void 0;const i=32,s=r.createCanvas(this.document,i,e),o=s.getContext("2d",{alpha:!1});if(!o)return;const a=r.createImageData(o,i,e),n=new Uint32Array(a.data.buffer),h=(0,A.toRGBA8888)(0,0,0),g=(0,A.toRGBA8888)(255,255,255);n.fill(h);for(let t=0;t<e;++t){const e=t%2,A=t*i;for(let t=0;t<i;t+=2)n[A+t+e]=g}o.putImageData(a,0,0);const d=screen.width+i-1&-32||4096;this._placeholder=r.createCanvas(this.document,d,e);const l=this._placeholder.getContext("2d",{alpha:!1});if(!l)return void(this._placeholder=void 0);for(let e=0;e<d;e+=i)l.drawImage(s,e,0);const I=this._placeholder;r.createImageBitmap(I).then(e=>{this._placeholder!==I?null==e||e.close():this._placeholderBitmap=e}).catch(()=>{})}get document(){var e;return null===(e=this._terminal._core._coreBrowserService)||void 0===e?void 0:e.window.document}}t.ImageRenderer=r},699(e,t,i){Object.defineProperty(t,"__esModule",{value:!0}),t.ImageStorage=t.CELL_SIZE_DEFAULT=void 0;const A=i(463);t.CELL_SIZE_DEFAULT={width:7,height:14};class s{get ext(){return this._urlId?-469762049&this._ext|this.underlineStyle<<26:this._ext}set ext(e){this._ext=e}get underlineStyle(){return this._urlId?5:(469762048&this._ext)>>26}set underlineStyle(e){this._ext&=-469762049,this._ext|=e<<26&469762048}get underlineColor(){return 67108863&this._ext}set underlineColor(e){this._ext&=-67108864,this._ext|=67108863&e}get underlineVariantOffset(){const e=(3758096384&this._ext)>>29;return e<0?4294967288^e:e}set underlineVariantOffset(e){this._ext&=536870911,this._ext|=e<<29&3758096384}get urlId(){return this._urlId}set urlId(e){this._urlId=e}constructor(e=0,t=0,i=-1,A=-1){this.imageId=i,this.tileId=A,this._ext=0,this._urlId=0,this._ext=e,this._urlId=t}clone(){return new s(this._ext,this._urlId,this.imageId,this.tileId)}isEmpty(){return 0===this.underlineStyle&&0===this._urlId&&-1===this.imageId}}const r=new s;t.ImageStorage=class{constructor(e,t,i){this._terminal=e,this._renderer=t,this._opts=i,this._images=new Map,this._lastId=0,this._lowestId=0,this._fullyCleared=!1,this._needsFullClear=!1,this._pixelLimit=25e5;try{this.setLimit(this._opts.storageLimit)}catch(e){e instanceof Error&&console.error(e.message),console.warn(`storageLimit is set to ${this.getLimit()} MB`)}this._viewportMetrics={cols:this._terminal.cols,rows:this._terminal.rows}}dispose(){this.reset()}reset(){var e;for(const t of this._images.values())null===(e=t.marker)||void 0===e||e.dispose();this._images.clear(),this._renderer.clearAll()}getLimit(){return 4*this._pixelLimit/1e6}setLimit(e){if(e<.5||e>1e3)throw RangeError("invalid storageLimit, should be at least 0.5 MB and not exceed 1G");this._pixelLimit=e/4*1e6>>>0,this._evictOldest(0)}getUsage(){return 4*this._getStoredPixels()/1e6}_getStoredPixels(){let e=0;for(const t of this._images.values())t.orig&&(e+=t.orig.width*t.orig.height,t.actual&&t.actual!==t.orig&&(e+=t.actual.width*t.actual.height));return e}_delImg(e){var t;const i=this._images.get(e);i&&(this._images.delete(e),window.ImageBitmap&&i.orig instanceof ImageBitmap&&i.orig.close(),null===(t=this.onImageDeleted)||void 0===t||t.call(this,e))}wipeAlternate(){var e;const t=[];for(const[i,A]of this._images.entries())"alternate"===A.bufferType&&(null===(e=A.marker)||void 0===e||e.dispose(),t.push(i));for(const e of t)this._delImg(e);this._needsFullClear=!0,this._fullyCleared=!1}deleteImage(e){var t;const i=this._images.get(e);i&&(null===(t=i.marker)||void 0===t||t.dispose(),this._delImg(e))}addImage(e,i){var A,s;this._evictOldest(e.width*e.height);let r=this._renderer.cellSize;-1!==r.width&&-1!==r.height||(r=t.CELL_SIZE_DEFAULT);const o=Math.ceil(e.width/r.width),a=Math.ceil(e.height/r.height),n=++this._lastId,h=this._terminal._core.buffer,g=this._terminal.cols,d=this._terminal.rows,l=h.x,I=h.y;let c=l,_=0;i.scrolling||(h.x=0,h.y=0,c=0),this._terminal._core._inputHandler._dirtyRowTracker.markDirty(h.y);for(let e=0;e<a;++e){const t=h.lines.get(h.y+h.ybase);for(let i=0;i<o&&!(c+i>=g);++i)this._writeToCell(t,c+i,n,e*o+i),_++;if(i.scrolling)e<a-1&&this._terminal._core._inputHandler.lineFeed();else if(++h.y>=d)break;h.x=c}this._terminal._core._inputHandler._dirtyRowTracker.markDirty(h.y),i.scrolling?"iip"===i.cursorPos?h.x=Math.min(c+o,g):h.x=c:(h.x=l,h.y=I);const C=[];for(const[e,t]of this._images.entries())t.tileCount<1&&(null===(A=t.marker)||void 0===A||A.dispose(),C.push(e));for(const e of C)this._delImg(e);const B=this._terminal.registerMarker(0);null==B||B.onDispose(()=>{this._images.get(n)&&this._delImg(n)}),"alternate"===this._terminal.buffer.active.type&&this._evictOnAlternate();const Q={orig:e,origCellSize:r,actual:e,actualCellSize:Object.assign({},r),marker:B||void 0,tileCount:_,bufferType:this._terminal.buffer.active.type,layer:i.layer,zIndex:i.zIndex};return this._images.set(n,Q),null===(s=this.onImageAdded)||void 0===s||s.call(this),n}render(e){var t,i;let A=!1,s=!1;for(const e of this._images.values())if("bottom"===e.layer?s=!0:A=!0,A&&s)break;if(A&&!this._renderer.hasLayer("top")&&(this._renderer.insertLayerToDom("top"),!this._renderer.hasLayer("top")))return;if(s&&!this._renderer.hasLayer("bottom")&&this._renderer.insertLayerToDom("bottom"),this._renderer.rescaleCanvas(),!this._images.size)return this._fullyCleared||(this._renderer.clearAll(),this._fullyCleared=!0,this._needsFullClear=!1),this._renderer.hasLayer("top")&&this._renderer.removeLayerFromDom("top"),void(this._renderer.hasLayer("bottom")&&this._renderer.removeLayerFromDom("bottom"));!A&&this._renderer.hasLayer("top")&&(this._renderer.clearAll("top"),this._renderer.removeLayerFromDom("top")),!s&&this._renderer.hasLayer("bottom")&&(this._renderer.clearAll("bottom"),this._renderer.removeLayerFromDom("bottom")),this._needsFullClear&&(this._renderer.clearAll(),this._fullyCleared=!0,this._needsFullClear=!1);const{start:o,end:a}=e,n=this._terminal._core.buffer,h=this._terminal._core.cols;this._renderer.clearLines(o,a);const g=[],d=[];for(let e=o;e<=a;++e){const A=n.lines.get(e+n.ydisp);if(!A)return;for(let s=0;s<h;++s)if(268435456&A.getBg(s)){let o=null!==(t=A._extendedAttrs[s])&&void 0!==t?t:r;const a=o.imageId;if(void 0===a||-1===a)continue;const n=this._images.get(a);if(-1!==o.tileId){const t=o.tileId,l=s;let I=1;for(;++s<h&&268435456&A.getBg(s)&&(o=null!==(i=A._extendedAttrs[s])&&void 0!==i?i:r)&&o.imageId===a&&o.tileId===t+I;)I++;s--,n?n.actual&&g.push({imgSpec:n,tileId:t,col:l,row:e,count:I}):this._opts.showPlaceholder&&d.push({col:l,row:e,count:I}),this._fullyCleared=!1}}}g.sort((e,t)=>e.imgSpec.zIndex-t.imgSpec.zIndex);for(const e of d)this._renderer.drawPlaceholder(e.col,e.row,e.count);for(const e of g)this._renderer.draw(e.imgSpec,e.tileId,e.col,e.row,e.count)}viewportResize(e){var t,i;if(!this._images.size)return void(this._viewportMetrics=e);if(this._viewportMetrics.cols>=e.cols)return void(this._viewportMetrics=e);const A=this._terminal._core.buffer,s=A.lines.length,o=this._viewportMetrics.cols-1;for(let a=0;a<s;++a){const s=A.lines.get(a);if(268435456&s.getBg(o)){const A=null!==(i=s._extendedAttrs[o])&&void 0!==i?i:r,a=A.imageId;if(void 0===a||-1===a)continue;const n=this._images.get(a);if(!n)continue;const h=Math.ceil(((null===(t=n.actual)||void 0===t?void 0:t.width)||0)/n.actualCellSize.width);if(A.tileId%h+1>=h)continue;let g=!1;for(let t=o+1;t>e.cols;++t)if(4194303&s._data[3*t+0]){g=!0;break}if(g)continue;const d=Math.min(e.cols,h-A.tileId%h+o);let l=A.tileId;for(let e=o+1;e<d;++e)this._writeToCell(s,e,a,++l),n.tileCount++}}this._viewportMetrics=e}getImageAtBufferCell(e,t){var i,s,o;const a=this._terminal._core.buffer.lines.get(t);if(a&&268435456&a.getBg(e)){const t=null!==(o=a._extendedAttrs[e])&&void 0!==o?o:r;if(t.imageId&&-1!==t.imageId){const e=null===(i=this._images.get(t.imageId))||void 0===i?void 0:i.orig;if(window.ImageBitmap&&e instanceof ImageBitmap){const t=A.ImageRenderer.createCanvas(window.document,e.width,e.height);return null===(s=t.getContext("2d"))||void 0===s||s.drawImage(e,0,0,e.width,e.height),t}return e}}}extractTileAtBufferCell(e,t){var i;const A=this._terminal._core.buffer.lines.get(t);if(A&&268435456&A.getBg(e)){const t=null!==(i=A._extendedAttrs[e])&&void 0!==i?i:r;if(t.imageId&&-1!==t.imageId&&-1!==t.tileId){const e=this._images.get(t.imageId);if(e)return this._renderer.extractTile(e,t.tileId)}}}_evictOldest(e){var t;const i=this._getStoredPixels();let A=i;for(;this._pixelLimit<A+e&&this._images.size;){const e=this._images.get(++this._lowestId);e&&e.orig&&(A-=e.orig.width*e.orig.height,e.actual&&e.orig!==e.actual&&(A-=e.actual.width*e.actual.height),null===(t=e.marker)||void 0===t||t.dispose(),this._delImg(this._lowestId))}return i-A}_writeToCell(e,t,i,A){if(268435456&e._data[3*t+2]){const r=e._extendedAttrs[t];if(r){if(void 0!==r.imageId){const e=this._images.get(r.imageId);return e&&e.tileCount--,r.imageId=i,void(r.tileId=A)}return void(e._extendedAttrs[t]=new s(r.ext,r.urlId,i,A))}}e._data[3*t+2]|=268435456,e._extendedAttrs[t]=new s(0,0,i,A)}_evictOnAlternate(){var e,t;for(const e of this._images.values())"alternate"===e.bufferType&&(e.tileCount=0);const i=this._terminal._core.buffer;for(let t=0;t<this._terminal.rows;++t){const A=i.lines.get(t);if(A)for(let t=0;t<this._terminal.cols;++t)if(268435456&A._data[3*t+2]){const i=null===(e=A._extendedAttrs[t])||void 0===e?void 0:e.imageId;if(i){const e=this._images.get(i);e&&e.tileCount++}}}const A=[];for(const[e,i]of this._images.entries())"alternate"!==i.bufferType||i.tileCount||(null===(t=i.marker)||void 0===t||t.dispose(),A.push(e));for(const e of A)this._delImg(e)}}},566(e,t,i){Object.defineProperty(t,"__esModule",{value:!0}),t.SixelHandler=void 0;const A=i(939),s=i(463),r=i(591),o=i(199),a=A.PALETTE_ANSI_256;a.set(A.PALETTE_VT340_COLOR);const n=new Map;let h=!1;function g(e,t){var i;e.memoryUsage>4194304&&e.release();const A=null!==(i=n.get(t))&&void 0!==i?i:[];A.length<2&&(A.push(e),n.set(t,A))}function d(e){return A.BIG_ENDIAN?e:(255&e)<<24|(e>>>8&255)<<16|(e>>>16&255)<<8|e>>>24&255}t.SixelHandler=class{constructor(e,t,i){var A;this._opts=e,this._storage=t,this._coreTerminal=i,this._size=0,this._aborted=!1,this._decMemoryLimit=0,this._palette=new Uint32Array(o.LIMITS.PALETTE_SIZE),this._palette.set(a),A=4*this._opts.pixelLimit,h||(h=!0,(0,r.DecoderAsync)({memoryLimit:A,palette:a}).then(e=>g(e,A),()=>{h=!1}))}reset(){this._returnDecoder(),this._palette.fill(0),this._palette.set(a)}hook(e){var t;this._size=0,this._aborted=!1,this._returnDecoder();const i=4*this._opts.pixelLimit;try{this._dec=function(e){var t,i;return null!==(i=null===(t=n.get(e))||void 0===t?void 0:t.pop())&&void 0!==i?i:new r.Decoder({memoryLimit:e,palette:a})}(i)}catch(e){return console.warn(`SIXEL: could not allocate decoder - ${e}`),void(this._aborted=!0)}this._decMemoryLimit=i;const s=1===e.params[1]?0:function(e,t){let i=0;if(!t)return i;if(e.isInverse())if(e.isFgDefault())i=d(t.foreground.rgba);else if(e.isFgRGB()){const t=e.constructor.toColorRGB(e.getFgColor());i=(0,A.toRGBA8888)(...t)}else i=d(t.ansi[e.getFgColor()].rgba);else if(e.isBgDefault())i=d(t.background.rgba);else if(e.isBgRGB()){const t=e.constructor.toColorRGB(e.getBgColor());i=(0,A.toRGBA8888)(...t)}else i=d(t.ansi[e.getBgColor()].rgba);return i}(this._coreTerminal._core._inputHandler._curAttrData,null===(t=this._coreTerminal._core._themeService)||void 0===t?void 0:t.colors);this._dec.init(s,this._palette,this._opts.sixelPaletteLimit)}_returnDecoder(){const e=this._dec;e&&(this._dec=void 0,this._palette.set(e.palette),g(e,this._decMemoryLimit))}put(e,t,i){if(!this._aborted&&this._dec){if(this._size+=i-t,this._size>this._opts.sixelSizeLimit)return console.warn("SIXEL: too much data, aborting"),this._aborted=!0,void this._dec.release();try{this._dec.decode(e,t,i)}catch(e){console.warn(`SIXEL: error while decoding image - ${e}`),this._aborted=!0,this._dec.release()}}}unhook(e){try{return this._unhook(e)}finally{this._returnDecoder()}}_unhook(e){var t;if(this._aborted||!e||!this._dec)return!0;const i=this._dec.width,A=this._dec.height;if(!i||!A)return A&&this._storage.advanceCursor(A),!0;const r=s.ImageRenderer.createCanvas(void 0,i,A);return null===(t=r.getContext("2d"))||void 0===t||t.putImageData(new ImageData(this._dec.data8,i,A),0,0),this._storage.addImage(r),!0}}},994(e,t,i){Object.defineProperty(t,"__esModule",{value:!0}),t.SixelImageStorage=void 0;const A=i(699);t.SixelImageStorage=class{constructor(e,t,i,A){this._storage=e,this._opts=t,this._renderer=i,this._terminal=A,this._addImageOpts={scrolling:!0,layer:"top",zIndex:0,cursorPos:"vt340"}}addImage(e){this._addImageOpts.scrolling=this._opts.sixelScrolling,this._storage.addImage(e,this._addImageOpts)}advanceCursor(e){if(this._opts.sixelScrolling){let t=this._renderer.cellSize;-1!==t.width&&-1!==t.height||(t=A.CELL_SIZE_DEFAULT);const i=Math.ceil(e/t.height);for(let e=1;e<i;++e)this._terminal._core._inputHandler.lineFeed()}}}},23(e,t,i){var A=this&&this.__importDefault||function(e){return e&&e.__esModule?e:{default:e}};Object.defineProperty(t,"__esModule",{value:!0}),t.KittyGraphicsHandler=void 0;const s=i(463),r=i(699),o=i(462),a=A(i(669)),n=i(470);t.KittyGraphicsHandler=class{constructor(e,t,i,A){this._opts=e,this._renderer=t,this._kittyStorage=i,this._coreTerminal=A,this._aborted=!1,this._generation=0,this._decodeError=!1,this._activeDecoder=null,this._inControlData=!0,this._controlData=new Uint32Array(512),this._controlLength=0,this._encodedSizeLimit=0,this._totalEncodedSize=0,this._parsedCommand=null,this._pendingTransmissions=new Map,this._maxEncodedBytes=Math.ceil(4*this._opts.kittySizeLimit/3),this._initialEncodedBytes=Math.min(4194304,this._maxEncodedBytes)}reset(){this._generation++,this._cleanupAllPending(),this._activeDecoder&&(this._activeDecoder.release(),this._activeDecoder=null),this._kittyStorage.reset()}dispose(){this.reset()}_removePendingEntry(e){this._pendingTransmissions.delete(e),this._lastPendingKey===e&&(this._lastPendingKey=void 0)}_cleanupAllPending(){for(const e of this._pendingTransmissions.values())e.decoder.release();this._pendingTransmissions.clear(),this._lastPendingKey=void 0}start(){this._aborted=!1,this._decodeError=!1,this._inControlData=!0,this._controlLength=0,this._parsedCommand=null,this._encodedSizeLimit=this._maxEncodedBytes,this._totalEncodedSize=0,this._activeDecoder=null}put(e,t,i){var A;if(!this._aborted)if(this._inControlData){let s=i;for(let A=t;A<i;A++)if(59===e[A]){this._inControlData=!1,s=A;break}const r=s-t;if(this._controlLength+r>512)return void(this._aborted=!0);if(this._controlData.set(e.subarray(t,s),this._controlLength),this._controlLength+=r,!this._inControlData){if(this._parsedCommand=(0,n.parseKittyCommand)(this._parseControlDataString()),void 0!==this._parsedCommand.id&&void 0!==this._parsedCommand.imageNumber)return this._sendResponse(this._parsedCommand.id,"EINVAL:cannot specify both i and I keys",null!==(A=this._parsedCommand.quiet)&&void 0!==A?A:0),void(this._aborted=!0);if("d"===this._parsedCommand.action)return;const t=s+1;t<i&&this._streamPayload(e,t,i)}}else this._streamPayload(e,t,i)}_streamPayload(e,t,i){var A,s,r,o,n,h,g,d,l,I;if(this._aborted)return;const c=null!==(n=null!==(o=null===(A=this._parsedCommand)||void 0===A?void 0:A.id)&&void 0!==o?o:this._lastPendingKey)&&void 0!==n?n:0,_=this._pendingTransmissions.get(c),C=null!==(h=null==_?void 0:_.totalEncodedSize)&&void 0!==h?h:0;if(this._totalEncodedSize+=i-t,C+this._totalEncodedSize>this._encodedSizeLimit){const e=null!==(g=this._activeDecoder)&&void 0!==g?g:null==_?void 0:_.decoder;return e&&e.release(),this._activeDecoder=null,_&&this._removePendingEntry(c),void(this._aborted=!0)}if(!this._decodeError){if((null==_?void 0:_.decoder)&&!this._activeDecoder&&(this._activeDecoder=_.decoder),!this._activeDecoder){const e=this._maxEncodedBytes+131072;if(e>1e6*this._opts.storageLimit)return this._aborted=!0,void(void 0!==(null===(s=this._parsedCommand)||void 0===s?void 0:s.id)&&this._sendResponse(this._parsedCommand.id,"ENOMEM:pending image budget exceeded",null!==(d=this._parsedCommand.quiet)&&void 0!==d?d:0));const t=Math.max(1,Math.floor(1e6*this._opts.storageLimit/e));for(;this._pendingTransmissions.size>=t;){const e=this._pendingTransmissions.entries().next().value;if(!e)break;e[1].decoder.release(),this._removePendingEntry(e[0]),void 0!==e[1].cmd.id&&this._sendResponse(e[1].cmd.id,"ENOMEM:pending image budget exceeded",null!==(l=e[1].cmd.quiet)&&void 0!==l?l:0)}const i=new a.default(4194304,this._maxEncodedBytes,this._initialEncodedBytes);try{i.init()}catch(e){return console.warn("KITTY: could not allocate decoder",e),this._aborted=!0,void(void 0!==(null===(r=this._parsedCommand)||void 0===r?void 0:r.id)&&this._sendResponse(this._parsedCommand.id,"ENOMEM:could not allocate decoder",null!==(I=this._parsedCommand.quiet)&&void 0!==I?I:0))}this._activeDecoder=i}0!==this._activeDecoder.put(e.subarray(t,i))&&(this._activeDecoder.release(),this._activeDecoder=null,this._decodeError=!0,_&&this._removePendingEntry(c))}}end(e){var t,i;if(this._aborted||!e)return this._activeDecoder&&(this._activeDecoder.release(),this._activeDecoder=null),!0;if(this._inControlData)return this._handleNoPayloadCommand();const A=this._parsedCommand;if("d"===A.action)return this._handleDelete(A);const s=null!==(i=null!==(t=A.id)&&void 0!==t?t:this._lastPendingKey)&&void 0!==i?i:0,r=1===A.more,o=this._pendingTransmissions.get(s);if(r)return this._activeDecoder&&(o?(o.totalEncodedSize+=this._totalEncodedSize,o.decodeError=o.decodeError||this._decodeError):this._pendingTransmissions.set(s,{cmd:Object.assign({},A),decoder:this._activeDecoder,totalEncodedSize:this._totalEncodedSize,decodeError:this._decodeError}),this._lastPendingKey=s,this._activeDecoder=null),!0;o&&(this._lastPendingKey=void 0);let a=this._decodeError,n=A,h=this._activeDecoder;o&&(n=o.cmd,h=o.decoder,a=a||o.decodeError,this._pendingTransmissions.delete(s));let g=new Uint8Array(0);h&&(0!==h.end()&&(a=!0),g=h.data8),this._activeDecoder=null;const d=this._handleCommandWithBytesAndCmd(n,g,a);return h&&h.release(),d}_parseControlDataString(){let e="";for(let t=0;t<this._controlLength;t++)e+=String.fromCodePoint(this._controlData[t]);return e}_handleNoPayloadCommand(){var e,t,i,A,s;const r=(0,n.parseKittyCommand)(this._parseControlDataString());if(void 0!==r.id&&void 0!==r.imageNumber)return this._sendResponse(r.id,"EINVAL:cannot specify both i and I keys",null!==(e=r.quiet)&&void 0!==e?e:0),!0;switch(null!==(t=r.action)&&void 0!==t?t:"t"){case"d":return this._handleDelete(r);case"q":return this._sendResponse(null!==(i=r.id)&&void 0!==i?i:0,"OK",null!==(A=r.quiet)&&void 0!==A?A:0),!0;case"p":return this._handlePlacement(r);default:return void 0!==r.id&&this._sendResponse(r.id,"EINVAL:unsupported action",null!==(s=r.quiet)&&void 0!==s?s:0),!0}}_handleCommandWithBytesAndCmd(e,t,i){var A,s,r,o,a;switch(null!==(A=e.action)&&void 0!==A?A:"t"){case"t":{const A=this._handleTransmit(e,t,i);return"d"===(null!==(s=e.transmission)&&void 0!==s?s:"d")&&void 0!==e.id&&(i?this._sendResponse(e.id,"EINVAL:invalid base64 data",null!==(r=e.quiet)&&void 0!==r?r:0):t.length>0&&this._sendResponse(e.id,"OK",null!==(o=e.quiet)&&void 0!==o?o:0)),A}case"T":return this._handleTransmitDisplay(e,t,i);case"q":return this._handleQuery(e,t,i);case"p":return this._handlePlacement(e);default:return void 0!==e.id&&this._sendResponse(e.id,"EINVAL:unsupported action",null!==(a=e.quiet)&&void 0!==a?a:0),!0}}_handlePlacement(e){var t;if(void 0===e.id)return!0;const i=e.id,A=this._kittyStorage.getImage(i);return A?this._displayImage(A,e).then(t=>{var A;return this._sendResponse(i,t?"OK":"EINVAL:image rendering failed",null!==(A=e.quiet)&&void 0!==A?A:0,e.placementId),!0}):(this._sendResponse(i,"ENOENT:image not found",null!==(t=e.quiet)&&void 0!==t?t:0,e.placementId),!0)}_handleTransmit(e,t,i){var A,s,r,o,a,n;return"d"!==(null!==(A=e.transmission)&&void 0!==A?A:"d")?(void 0!==e.id&&this._sendResponse(e.id,"EINVAL:unsupported transmission medium",null!==(s=e.quiet)&&void 0!==s?s:0),!0):(i||0===t.length||this._kittyStorage.storeImage(e.id,{data:new Blob([t]),width:null!==(r=e.width)&&void 0!==r?r:0,height:null!==(o=e.height)&&void 0!==o?o:0,format:null!==(a=e.format)&&void 0!==a?a:32,compression:null!==(n=e.compression)&&void 0!==n?n:""}),!0)}_handleTransmitDisplay(e,t,i){var A,s;if(i)return void 0!==e.id&&this._sendResponse(e.id,"EINVAL:invalid base64 data",null!==(A=e.quiet)&&void 0!==A?A:0),!0;this._handleTransmit(e,t,i);const r=null!==(s=e.id)&&void 0!==s?s:this._kittyStorage.lastImageId,o=this._kittyStorage.getImage(r);if(o){const t=this._displayImage(o,e);return void 0!==e.id?t.then(t=>{var i;return this._sendResponse(r,t?"OK":"EINVAL:image rendering failed",null!==(i=e.quiet)&&void 0!==i?i:0),!0}):t.then(()=>!0)}return!0}_handleQuery(e,t,i){var A,s,r,o,a,n;const h=null!==(A=e.id)&&void 0!==A?A:0,g=null!==(s=e.quiet)&&void 0!==s?s:0;if("d"!==(null!==(r=e.transmission)&&void 0!==r?r:"d"))return this._sendResponse(h,"EINVAL:unsupported transmission medium",g),!0;if(i)return this._sendResponse(h,"EINVAL:invalid base64 data",g),!0;if(0===t.length)return this._sendResponse(h,"OK",g),!0;const d=null!==(o=e.format)&&void 0!==o?o:32;if(100===d)this._sendResponse(h,"OK",g);else{const i=null!==(a=e.width)&&void 0!==a?a:0,A=null!==(n=e.height)&&void 0!==n?n:0;if(!i||!A)return this._sendResponse(h,"EINVAL:width and height required for raw pixel data",g),!0;const s=i*A*(32===d?4:3);if(t.length<s)return this._sendResponse(h,"EINVAL:insufficient pixel data",g),!0;this._sendResponse(h,"OK",g)}return!0}_handleDelete(e){var t;switch(null!==(t=e.deleteSelector)&&void 0!==t?t:"a"){case"a":case"A":this._cleanupAllPending(),this._kittyStorage.deleteAll();break;case"i":case"I":if(void 0!==e.id){const t=this._pendingTransmissions.get(e.id);t&&t.decoder.release(),this._removePendingEntry(e.id),this._kittyStorage.deleteById(e.id)}}return!0}_sendResponse(e,t,i,A){const s="OK"===t;if(s&&i>=1)return;if(!s&&i>=2)return;const r=`_Gi=${e}${A?`,p=${A}`:""};${t}\\`;this._coreTerminal._core.coreService.triggerDataEvent(r)}_displayImage(e,t){return this._decodeAndDisplay(e,t).then(()=>!0).catch(()=>!1)}async _decodeAndDisplay(e,t){var i,A,o,a,n,h,g;const d=this._generation;let l=await this._createBitmap(e);try{if(d!==this._generation)throw new Error("image decode canceled");const I=Math.max(0,null!==(o=t.x)&&void 0!==o?o:0),c=Math.max(0,null!==(a=t.y)&&void 0!==a?a:0),_=t.sourceWidth||l.width-I,C=t.sourceHeight||l.height-c,B=Math.max(0,l.width-I),Q=Math.max(0,l.height-c),m=Math.max(0,Math.min(_,B)),u=Math.max(0,Math.min(C,Q));if(0===m||0===u)throw new Error("invalid source rectangle");if(0!==I||0!==c||m!==l.width||u!==l.height){const e=await createImageBitmap(l,I,c,m,u);l.close(),l=e}const E=(null===(i=this._renderer.dimensions)||void 0===i?void 0:i.css.cell.width)||r.CELL_SIZE_DEFAULT.width,p=(null===(A=this._renderer.dimensions)||void 0===A?void 0:A.css.cell.height)||r.CELL_SIZE_DEFAULT.height;let w,f;void 0!==t.columns&&void 0!==t.rows?(w=t.columns,f=t.rows):void 0!==t.columns?(w=t.columns,f=Math.max(1,Math.ceil(l.height/l.width*(w*E)/p))):void 0!==t.rows?(f=t.rows,w=Math.max(1,Math.ceil(l.width/l.height*(f*p)/E))):(w=Math.ceil(l.width/E),f=Math.ceil(l.height/p));let D=l.width,y=l.height;if(void 0===t.columns&&void 0===t.rows||(D=Math.round(w*E),y=Math.round(f*p)),D*y>this._opts.pixelLimit)throw new Error("image exceeds pixel limit");const v=this._coreTerminal._core.buffer,M=v.x,k=v.y,b=v.ybase,S=void 0!==t.zIndex&&t.zIndex<0?"bottom":"top";if(D!==l.width||y!==l.height){const e=await createImageBitmap(l,{resizeWidth:D,resizeHeight:y});l.close(),l=e}const L=Math.min(Math.max(0,null!==(n=t.xOffset)&&void 0!==n?n:0),E-1),N=Math.min(Math.max(0,null!==(h=t.yOffset)&&void 0!==h?h:0),p-1);if(0!==L||0!==N){const e=void 0!==t.columns?Math.round(w*E):l.width+L,i=void 0!==t.rows?Math.round(f*p):l.height+N,A=s.ImageRenderer.createCanvas(window.document,e,i),r=A.getContext("2d");if(!r)throw new Error("Failed to create offset canvas context");r.drawImage(l,L,N);const o=await createImageBitmap(A);if(A.width=A.height=0,l.close(),l=o,D=l.width,y=l.height,D*y>this._opts.pixelLimit)throw new Error("image exceeds pixel limit");void 0===t.columns&&(w=Math.ceil(l.width/E)),void 0===t.rows&&(f=Math.ceil(l.height/p))}if(d!==this._generation)throw new Error("image decode canceled");const G=null!==(g=t.zIndex)&&void 0!==g?g:0;if(this._kittyStorage.addImage(e.id,l,!0,S,G),l=void 0,1===t.cursorMovement){const e=v.ybase-b;v.x=M,v.y=Math.max(k-e,0)}else v.x=Math.min(M+w,this._coreTerminal.cols)}catch(e){throw null==l||l.close(),e}}async _createBitmap(e){let t=new Uint8Array(await e.data.arrayBuffer());if("z"===e.compression&&(t=await this._decompressZlib(t)),100===e.format){const e=(0,o.imageType)(t);if("image/png"!==e.mime||!(e.width>0)||!(e.height>0)||e.width*e.height>this._opts.pixelLimit)throw new RangeError("PNG exceeds pixel limit or has invalid dimensions");const i=new Blob([t],{type:"image/png"});if(!window.createImageBitmap){const e=URL.createObjectURL(i),t=new Image;return new Promise((i,A)=>{t.addEventListener("load",()=>{var r;URL.revokeObjectURL(e);const o=s.ImageRenderer.createCanvas(window.document,t.width,t.height);null===(r=o.getContext("2d"))||void 0===r||r.drawImage(t,0,0),createImageBitmap(o).then(i).catch(A)}),t.addEventListener("error",()=>{URL.revokeObjectURL(e),A(new Error("Failed to load image"))}),t.src=e})}return createImageBitmap(i)}const i=e.width,A=e.height;if(!i||!A)throw new Error("Width and height required for raw pixel data");const r=i*A*(32===e.format?4:3);if(t.length<r)throw new Error("Insufficient pixel data");const a=i*A;if(32===e.format)return createImageBitmap(new ImageData(new Uint8ClampedArray(t.buffer,t.byteOffset,4*a),i,A));const n=new Uint8ClampedArray(4*a),h=new Uint32Array(t.buffer,t.byteOffset,Math.floor(t.byteLength/4)),g=new Uint32Array(n.buffer),d=-4&a;let l=0,I=0;for(let e=0;e<d;e+=4){const e=h[l++],t=h[l++],i=h[l++];g[I++]=4278190080|e,g[I++]=4278190080|e>>>24|t<<8,g[I++]=4278190080|t>>>16|i<<16,g[I++]=4278190080|i>>>8}let c=3*d,_=4*d;for(let e=d;e<a;e++)n[_]=t[c],n[_+1]=t[c+1],n[_+2]=t[c+2],n[_+3]=255,c+=3,_+=4;return createImageBitmap(new ImageData(n,i,A))}async _decompressZlib(e){try{return await this._decompress(e,"deflate")}catch(t){if(t instanceof RangeError)throw t;return await this._decompress(e,"deflate-raw")}}async _decompress(e,t){const i=Math.min(this._opts.kittySizeLimit,4*this._opts.pixelLimit,1e6*this._opts.storageLimit);let A=0;const s=new ReadableStream({pull(t){if(A>=e.length)return void t.close();const i=Math.min(A+4096,e.length);t.enqueue(new Uint8Array(e.subarray(A,i))),A=i}}).pipeThrough(new DecompressionStream(t)).getReader(),r=[];let o=0;try{for(;;){const{done:e,value:t}=await s.read();if(e)break;if(o+=t.byteLength,o>i)throw await s.cancel().catch(()=>{}),new RangeError("decompressed image exceeds byte limit");r.push(t)}}finally{s.releaseLock()}const a=new Uint8Array(o);let n=0;for(const e of r)a.set(e,n),n+=e.length;return a}get images(){return this._kittyStorage.images}get _kittyIdToStorageId(){return this._kittyStorage.kittyIdToStorageId}get pendingTransmissions(){return this._pendingTransmissions}}},470(e,t){Object.defineProperty(t,"__esModule",{value:!0}),t.parseKittyCommand=function(e){const t={},i=e.split(",");for(const e of i){const i=e.indexOf("=");if(-1===i)continue;const A=e.substring(0,i),s=e.substring(i+1);if("a"===A){t.action=s;continue}if("o"===A){t.compression=s;continue}if("t"===A){t.transmission=s;continue}if("d"===A){t.deleteSelector=s;continue}const r=parseInt(s,10);switch(A){case"f":t.format=r;break;case"i":t.id=r;break;case"I":t.imageNumber=r;break;case"s":t.width=r;break;case"v":t.height=r;break;case"x":t.x=r;break;case"y":t.y=r;break;case"w":t.sourceWidth=r;break;case"h":t.sourceHeight=r;break;case"X":t.xOffset=r;break;case"Y":t.yOffset=r;break;case"c":t.columns=r;break;case"r":t.rows=r;break;case"m":t.more=r;break;case"q":t.quiet=r;break;case"C":t.cursorMovement=r;break;case"z":t.zIndex=r;break;case"p":t.placementId=r}}return t}},235(e,t){Object.defineProperty(t,"__esModule",{value:!0}),t.KittyImageStorage=void 0;class i{constructor(e){this._storage=e,this._nextImageId=1,this._images=new Map,this._kittyIdToStorageId=new Map,this._storageIdToKittyId=new Map,this._handleStorageImageDeleted=e=>{const t=this._storageIdToKittyId.get(e);void 0!==t&&(this._kittyIdToStorageId.delete(t),this._storageIdToKittyId.delete(e),this._images.delete(t))},this._addImageOpts={scrolling:!0,layer:"top",zIndex:0,cursorPos:"iip"},this._previousOnImageDeleted=this._storage.onImageDeleted,this._wrappedOnImageDeleted=e=>{var t;null===(t=this._previousOnImageDeleted)||void 0===t||t.call(this,e),this._handleStorageImageDeleted(e)},this._storage.onImageDeleted=this._wrappedOnImageDeleted}reset(){this._nextImageId=1,this._images.clear(),this._kittyIdToStorageId.clear(),this._storageIdToKittyId.clear()}dispose(){this.reset(),this._storage.onImageDeleted===this._wrappedOnImageDeleted&&(this._storage.onImageDeleted=this._previousOnImageDeleted)}storeImage(e,t){const A=null!=e?e:this._nextImageId++,s=this._kittyIdToStorageId.get(A);void 0!==s&&(this._storage.deleteImage(s),this._kittyIdToStorageId.delete(A),this._storageIdToKittyId.delete(s)),!this._images.has(A)&&this._images.size>=i._maxStoredImages&&this._evictUndisplayedImages();const r=1e6*this._storage.getLimit();this._images.delete(A);let o=0;for(const e of this._images.values())o+=e.data.size;for(const e of[!1,!0])for(const[i,A]of this._images){if(o+t.data.size<=r)break;this._kittyIdToStorageId.has(i)===e&&(o-=A.data.size,this.deleteById(i))}return this._images.set(A,Object.assign(Object.assign({},t),{id:A})),A}addImage(e,t,i,A,s){const r=this._kittyIdToStorageId.get(e);void 0!==r&&this._storageIdToKittyId.delete(r),this._addImageOpts.scrolling=i,this._addImageOpts.layer=A,this._addImageOpts.zIndex=s;const o=this._storage.addImage(t,this._addImageOpts);this._kittyIdToStorageId.set(e,o),this._storageIdToKittyId.set(o,e)}getImage(e){return this._images.get(e)}deleteById(e){this._images.delete(e);const t=this._kittyIdToStorageId.get(e);void 0!==t&&(this._storage.deleteImage(t),this._kittyIdToStorageId.delete(e),this._storageIdToKittyId.delete(t))}deleteAll(){this._images.clear();for(const e of this._kittyIdToStorageId.values())this._storage.deleteImage(e);this._kittyIdToStorageId.clear(),this._storageIdToKittyId.clear()}get images(){return this._images}get kittyIdToStorageId(){return this._kittyIdToStorageId}get lastImageId(){return this._nextImageId-1}_evictUndisplayedImages(){for(const[e]of this._images){if(this._images.size<=i._maxStoredImages/2)break;this._kittyIdToStorageId.has(e)||this._images.delete(e)}}}t.KittyImageStorage=i,i._maxStoredImages=256},669(e,t,i){Object.defineProperty(t,"__esModule",{value:!0});const A=(0,i(552).InWasm)({s:1,t:0,d:"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"}),s=new Uint8Array("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/".split("").map(e=>e.charCodeAt(0))),r=new Uint32Array(1024);r.fill(4278190080);for(let e=0;e<s.length;++e)r[s[e]]=e<<2;for(let e=0;e<s.length;++e)r[256+s[e]]=e>>4|(e<<4&255)<<8;for(let e=0;e<s.length;++e)r[512+s[e]]=e>>2<<8|(e<<6&255)<<16;for(let e=0;e<s.length;++e)r[768+s[e]]=e<<16;const o=new Uint8Array(0);t.default=class{constructor(e,t,i){if(this._inst=null,this._ended=!0,this._bytes=0,this.keepSize=null!=e?e:1048576,this.maxBytes=null!=t?t:4294901760,this._bytes=null!=i?i:32768,this._bytes>this.maxBytes||this.maxBytes>4294901760)throw new Error("invalid byte settings")}get data8(){return this._inst?this._d.subarray(0,this._m32[1282]):o}release(){this._inst&&(this._bytes>this.keepSize?this._inst=this._m32=this._d=this._mem=null:(this._m32[1280]=0,this._m32[1281]=0,this._m32[1282]=0))}init(e,t){if(this.maxBytes=null!=e?e:this.maxBytes,this._bytes=null!=t?t:Math.min(this._bytes,this.maxBytes),this._bytes>this.maxBytes||this.maxBytes>4294901760)throw Error("invalid byte settings");let i=this._m32;const s=this._bytes+5152;this._inst?this._mem.buffer.byteLength<s&&(this._mem.grow(Math.ceil((s-this._mem.buffer.byteLength)/65536)),i=new Uint32Array(this._mem.buffer,0),this._d=new Uint8Array(this._mem.buffer,5152)):(this._mem=new WebAssembly.Memory({initial:Math.ceil(s/65536)}),this._inst=A({env:{memory:this._mem}}),i=new Uint32Array(this._mem.buffer,0),i.set(r,256),this._d=new Uint8Array(this._mem.buffer,5152)),i[1280]=0,i[1281]=0,i[1282]=0,this._m32=i,this._ended=!1}_realloc(e){const t=this._m32[1280]+e;if(this._bytes<t){if(t>this.maxBytes)return-3;let 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|
||
//# sourceMappingURL=addon-image.js.map
|
||
\ No newline at end of file
|
||
diff --git a/lib/addon-image.js.map b/lib/addon-image.js.map
|
||
index 7a6ca6fc4405bd466272eac7d835a08b330f7be6..490d4c101a2f9d36f4e1d3727ec9714ae6255e0e 100644
|
||
--- a/lib/addon-image.js.map
|
||
+++ b/lib/addon-image.js.map
|
||
@@ -1 +1 @@
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webpackUniversalModuleDefinition(root, factory) {\n\tif(typeof exports === 'object' && typeof module === 'object')\n\t\tmodule.exports = factory();\n\telse if(typeof define === 'function' && define.amd)\n\t\tdefine([], factory);\n\telse if(typeof exports === 'object')\n\t\texports[\"ImageAddon\"] = factory();\n\telse\n\t\troot[\"ImageAddon\"] = factory();\n})(globalThis, () => {\nreturn ","\"use strict\";\n/**\n * Copyright (c) 2019 Joerg Breitbart.\n * @license MIT\n */\nObject.defineProperty(exports, \"__esModule\", { value: true });\nexports.DEFAULT_FOREGROUND = exports.DEFAULT_BACKGROUND = exports.PALETTE_ANSI_256 = exports.PALETTE_VT340_GREY = exports.PALETTE_VT340_COLOR = exports.normalizeHLS = exports.normalizeRGB = exports.nearestColorIndex = exports.fromRGBA8888 = exports.toRGBA8888 = exports.alpha = exports.blue = exports.green = exports.red = exports.BIG_ENDIAN = void 0;\n// FIXME: cleanup this mess, move things either to decoder/encoder, keep only shared things\n// system endianess\nexports.BIG_ENDIAN = new Uint8Array(new Uint32Array([0xFF000000]).buffer)[0] === 0xFF;\nif (exports.BIG_ENDIAN) {\n console.warn('BE platform detected. This version of node-sixel works only on LE properly.');\n}\n// channel values\nfunction red(n) {\n return n & 0xFF;\n}\nexports.red = red;\nfunction green(n) {\n return (n >>> 8) & 0xFF;\n}\nexports.green = green;\nfunction blue(n) {\n return (n >>> 16) & 0xFF;\n}\nexports.blue = blue;\nfunction alpha(n) {\n return (n >>> 24) & 0xFF;\n}\nexports.alpha = alpha;\n/**\n * Convert RGB channels to native color RGBA8888.\n */\nfunction toRGBA8888(r, g, b, a = 255) {\n return ((a & 0xFF) << 24 | (b & 0xFF) << 16 | (g & 0xFF) << 8 | (r & 0xFF)) >>> 0; // ABGR32\n}\nexports.toRGBA8888 = toRGBA8888;\n/**\n * Convert native color to [r, g, b, a].\n */\nfunction fromRGBA8888(color) {\n return [color & 0xFF, (color >> 8) & 0xFF, (color >> 16) & 0xFF, color >>> 24];\n}\nexports.fromRGBA8888 = fromRGBA8888;\n/**\n * Get index of nearest color in `palette` for `color`.\n * Uses euclidean distance without any luminescence correction.\n */\nfunction nearestColorIndex(color, palette) {\n const r = red(color);\n const g = green(color);\n const b = blue(color);\n let min = Number.MAX_SAFE_INTEGER;\n let idx = -1;\n // use euclidean distance (manhattan gives very poor results)\n for (let i = 0; i < palette.length; ++i) {\n const dr = r - palette[i][0];\n const dg = g - palette[i][1];\n const db = b - palette[i][2];\n const d = dr * dr + dg * dg + db * db;\n if (!d)\n return i;\n if (d < min) {\n min = d;\n idx = i;\n }\n }\n return idx;\n}\nexports.nearestColorIndex = nearestColorIndex;\n// color conversions\n// HLS taken from: http://www.niwa.nu/2013/05/math-behind-colorspace-conversions-rgb-hsl\nfunction clamp(low, high, value) {\n return Math.max(low, Math.min(value, high));\n}\nfunction h2c(t1, t2, c) {\n if (c < 0)\n c += 1;\n if (c > 1)\n c -= 1;\n return c * 6 < 1\n ? t2 + (t1 - t2) * 6 * c\n : c * 2 < 1\n ? t1\n : c * 3 < 2\n ? t2 + (t1 - t2) * (4 - c * 6)\n : t2;\n}\nfunction HLStoRGB(h, l, s) {\n if (!s) {\n const v = Math.round(l * 255);\n return toRGBA8888(v, v, v);\n }\n const t1 = l < 0.5 ? l * (1 + s) : l + s - l * s;\n const t2 = 2 * l - t1;\n return toRGBA8888(clamp(0, 255, Math.round(h2c(t1, t2, h + 1 / 3) * 255)), clamp(0, 255, Math.round(h2c(t1, t2, h) * 255)), clamp(0, 255, Math.round(h2c(t1, t2, h - 1 / 3) * 255)));\n}\n/**\n * Normalize SIXEL RGB values (percent based, 0-100) to RGBA8888.\n */\nfunction normalizeRGB(r, g, b) {\n return (0xFF000000 | Math.round(b / 100 * 255) << 16 | Math.round(g / 100 * 255) << 8 | Math.round(r / 100 * 255)) >>> 0; // ABGR32\n}\nexports.normalizeRGB = normalizeRGB;\n/**\n * Normalize SIXEL HLS values to RGBA8888. Applies hue correction of +240°.\n */\nfunction normalizeHLS(h, l, s) {\n // Note: hue value is turned by 240° in VT340, all values given as fractions\n return HLStoRGB((h + 240 % 360) / 360, l / 100, s / 100);\n}\nexports.normalizeHLS = normalizeHLS;\n/**\n * default palettes\n */\n// FIXME: move palettes to Decoder.ts\n/**\n * 16 predefined color registers of VT340 (values in %):\n * ```\n * R G B\n * 0 Black 0 0 0\n * 1 Blue 20 20 80\n * 2 Red 80 13 13\n * 3 Green 20 80 20\n * 4 Magenta 80 20 80\n * 5 Cyan 20 80 80\n * 6 Yellow 80 80 20\n * 7 Gray 50% 53 53 53\n * 8 Gray 25% 26 26 26\n * 9 Blue* 33 33 60\n * 10 Red* 60 26 26\n * 11 Green* 33 60 33\n * 12 Magenta* 60 33 60\n * 13 Cyan* 33 60 60\n * 14 Yellow* 60 60 33\n * 15 Gray 75% 80 80 80\n * ```\n * (*) less saturated\n *\n * @see https://vt100.net/docs/vt3xx-gp/chapter2.html#S2.4\n*/\nexports.PALETTE_VT340_COLOR = new Uint32Array([\n normalizeRGB(0, 0, 0),\n normalizeRGB(20, 20, 80),\n normalizeRGB(80, 13, 13),\n normalizeRGB(20, 80, 20),\n normalizeRGB(80, 20, 80),\n normalizeRGB(20, 80, 80),\n normalizeRGB(80, 80, 20),\n normalizeRGB(53, 53, 53),\n normalizeRGB(26, 26, 26),\n normalizeRGB(33, 33, 60),\n normalizeRGB(60, 26, 26),\n normalizeRGB(33, 60, 33),\n normalizeRGB(60, 33, 60),\n normalizeRGB(33, 60, 60),\n normalizeRGB(60, 60, 33),\n normalizeRGB(80, 80, 80)\n]);\n/**\n * 16 predefined monochrome registers of VT340 (values in %):\n * ```\n * R G B\n * 0 Black 0 0 0\n * 1 Gray-2 13 13 13\n * 2 Gray-4 26 26 26\n * 3 Gray-6 40 40 40\n * 4 Gray-1 6 6 6\n * 5 Gray-3 20 20 20\n * 6 Gray-5 33 33 33\n * 7 White 7 46 46 46\n * 8 Black 0 0 0 0\n * 9 Gray-2 13 13 13\n * 10 Gray-4 26 26 26\n * 11 Gray-6 40 40 40\n * 12 Gray-1 6 6 6\n * 13 Gray-3 20 20 20\n * 14 Gray-5 33 33 33\n * 15 White 7 46 46 46\n * ```\n *\n * @see https://vt100.net/docs/vt3xx-gp/chapter2.html#S2.4\n */\nexports.PALETTE_VT340_GREY = new Uint32Array([\n normalizeRGB(0, 0, 0),\n normalizeRGB(13, 13, 13),\n normalizeRGB(26, 26, 26),\n normalizeRGB(40, 40, 40),\n normalizeRGB(6, 6, 6),\n normalizeRGB(20, 20, 20),\n normalizeRGB(33, 33, 33),\n normalizeRGB(46, 46, 46),\n normalizeRGB(0, 0, 0),\n normalizeRGB(13, 13, 13),\n normalizeRGB(26, 26, 26),\n normalizeRGB(40, 40, 40),\n normalizeRGB(6, 6, 6),\n normalizeRGB(20, 20, 20),\n normalizeRGB(33, 33, 33),\n normalizeRGB(46, 46, 46)\n]);\n/**\n * 256 predefined ANSI colors.\n *\n * @see https://en.wikipedia.org/wiki/ANSI_escape_code#8-bit\n */\nexports.PALETTE_ANSI_256 = (() => {\n // 16 lower colors (taken from xterm)\n const p = [\n toRGBA8888(0, 0, 0),\n toRGBA8888(205, 0, 0),\n toRGBA8888(0, 205, 0),\n toRGBA8888(205, 205, 0),\n toRGBA8888(0, 0, 238),\n toRGBA8888(205, 0, 205),\n toRGBA8888(0, 250, 205),\n toRGBA8888(229, 229, 229),\n toRGBA8888(127, 127, 127),\n toRGBA8888(255, 0, 0),\n toRGBA8888(0, 255, 0),\n toRGBA8888(255, 255, 0),\n toRGBA8888(92, 92, 255),\n toRGBA8888(255, 0, 255),\n toRGBA8888(0, 255, 255),\n toRGBA8888(255, 255, 255),\n ];\n // colors up to 232\n const d = [0, 95, 135, 175, 215, 255];\n for (let r = 0; r < 6; ++r) {\n for (let g = 0; g < 6; ++g) {\n for (let b = 0; b < 6; ++b) {\n p.push(toRGBA8888(d[r], d[g], d[b]));\n }\n }\n }\n // grey scale to up 255\n for (let v = 8; v <= 238; v += 10) {\n p.push(toRGBA8888(v, v, v));\n }\n return new Uint32Array(p);\n})();\n/**\n * Background: Black by default.\n * Foreground: White by default.\n *\n * Background color is used whenever a fill color is needed and not explicitly set.\n * Foreground color is used as default initial sixel color.\n */\nexports.DEFAULT_BACKGROUND = toRGBA8888(0, 0, 0, 255);\nexports.DEFAULT_FOREGROUND = toRGBA8888(255, 255, 255, 255);\n//# sourceMappingURL=Colors.js.map","\"use strict\";\n/**\n * Copyright (c) 2021 Joerg Breitbart.\n * @license MIT\n */\nObject.defineProperty(exports, \"__esModule\", { value: true });\nexports.decodeAsync = exports.decode = exports.Decoder = exports.DecoderAsync = void 0;\nconst Colors_1 = require(\"./Colors\");\nconst wasm_1 = require(\"./wasm\");\n/* istanbul ignore next */\nfunction decodeBase64(s) {\n if (typeof Buffer !== 'undefined') {\n return Buffer.from(s, 'base64');\n }\n const bytestring = atob(s);\n const result = new Uint8Array(bytestring.length);\n for (let i = 0; i < result.length; ++i) {\n result[i] = bytestring.charCodeAt(i);\n }\n return result;\n}\nconst WASM_BYTES = decodeBase64(wasm_1.LIMITS.BYTES);\nlet WASM_MODULE;\n// empty canvas\nconst NULL_CANVAS = new Uint32Array();\n// proxy for lazy binding of decoder methods to wasm env callbacks\nclass CallbackProxy {\n constructor() {\n this.bandHandler = (width) => 1;\n this.modeHandler = (mode) => 1;\n }\n handle_band(width) {\n return this.bandHandler(width);\n }\n mode_parsed(mode) {\n return this.modeHandler(mode);\n }\n}\n// default decoder options\nconst DEFAULT_OPTIONS = {\n memoryLimit: 2048 * 65536,\n sixelColor: Colors_1.DEFAULT_FOREGROUND,\n fillColor: Colors_1.DEFAULT_BACKGROUND,\n palette: Colors_1.PALETTE_VT340_COLOR,\n paletteLimit: wasm_1.LIMITS.PALETTE_SIZE,\n truncate: true\n};\n/**\n * Create a decoder instance asynchronously.\n * To be used in the browser main thread.\n */\nfunction DecoderAsync(opts) {\n const cbProxy = new CallbackProxy();\n const importObj = {\n env: {\n handle_band: cbProxy.handle_band.bind(cbProxy),\n mode_parsed: cbProxy.mode_parsed.bind(cbProxy)\n }\n };\n return WebAssembly.instantiate(WASM_MODULE || WASM_BYTES, importObj)\n .then((inst) => {\n WASM_MODULE = WASM_MODULE || inst.module;\n return new Decoder(opts, inst.instance || inst, cbProxy);\n });\n}\nexports.DecoderAsync = DecoderAsync;\n/**\n * Decoder - web assembly based sixel stream decoder.\n *\n * Usage pattern:\n * - call `init` to initialize decoder for new image\n * - feed data chunks to `decode` or `decodeString`\n * - grab pixels from `data32`\n * - optional: call `release` to free memory (e.g. after big images)\n * - start over with next image by calling `init`\n *\n * Properties:\n * - max width of 2^14 - 4 pixels (compile time setting in wasm)\n * - no explicit height limit (only limited by memory)\n * - max 4096 colors palette (compile time setting in wasm)\n *\n * Explanation operation modes:\n * - M1 Mode chosen for level 1 images (no raster attributes),\n * or for level 2 images with `truncate=false`.\n * - M2 Mode chosen for level 2 images with `truncate=true` (default).\n * While this mode is not fully spec conform (decoder not expected to truncate),\n * it is what spec conform encoders should create (should not excess raster).\n * This mode has several advantages:\n * - ~15% faster decoding speed\n * - image dimensions can be evaluated early without processing the whole data\n * - faster pixel access in `data32` (precalulated)\n * - image height is not reported as multiple of 6 pixels\n * - M0 Undecided mode state after `init`.\n * The level of an image is determined during early decoding based on the fact,\n * whether the data contains valid raster attributes before any sixel data.\n * Until then the mode of an image is marked as M0, meaning the real operation mode\n * could not be decided yet.\n */\nclass Decoder {\n /**\n * Synchonous ctor. Can be called from nodejs or a webworker context.\n * For instantiation in the browser main thread use `WasmDecoderAsync` instead.\n */\n constructor(opts, _instance, _cbProxy) {\n this._PIXEL_OFFSET = wasm_1.LIMITS.MAX_WIDTH + 4;\n this._canvas = NULL_CANVAS;\n this._bandWidths = [];\n this._maxWidth = 0;\n this._minWidth = wasm_1.LIMITS.MAX_WIDTH;\n this._lastOffset = 0;\n this._currentHeight = 0;\n this._opts = Object.assign({}, DEFAULT_OPTIONS, opts);\n if (this._opts.paletteLimit > wasm_1.LIMITS.PALETTE_SIZE) {\n throw new Error(`DecoderOptions.paletteLimit must not exceed ${wasm_1.LIMITS.PALETTE_SIZE}`);\n }\n if (!_instance) {\n const module = WASM_MODULE || (WASM_MODULE = new WebAssembly.Module(WASM_BYTES));\n _instance = new WebAssembly.Instance(module, {\n env: {\n handle_band: this._handle_band.bind(this),\n mode_parsed: this._initCanvas.bind(this)\n }\n });\n }\n else {\n _cbProxy.bandHandler = this._handle_band.bind(this);\n _cbProxy.modeHandler = this._initCanvas.bind(this);\n }\n this._instance = _instance;\n this._wasm = this._instance.exports;\n this._chunk = new Uint8Array(this._wasm.memory.buffer, this._wasm.get_chunk_address(), wasm_1.LIMITS.CHUNK_SIZE);\n this._states = new Uint32Array(this._wasm.memory.buffer, this._wasm.get_state_address(), 12);\n this._palette = new Uint32Array(this._wasm.memory.buffer, this._wasm.get_palette_address(), wasm_1.LIMITS.PALETTE_SIZE);\n this._palette.set(this._opts.palette);\n this._pSrc = new Uint32Array(this._wasm.memory.buffer, this._wasm.get_p0_address());\n this._wasm.init(Colors_1.DEFAULT_FOREGROUND, 0, this._opts.paletteLimit, 0);\n }\n // some readonly parser states for internal usage\n get _fillColor() { return this._states[0]; }\n get _truncate() { return this._states[8]; }\n get _rasterWidth() { return this._states[6]; }\n get _rasterHeight() { return this._states[7]; }\n get _width() { return this._states[2] ? this._states[2] - 4 : 0; }\n get _height() { return this._states[3]; }\n get _level() { return this._states[9]; }\n get _mode() { return this._states[10]; }\n get _paletteLimit() { return this._states[11]; }\n _initCanvas(mode) {\n if (mode === 2 /* M2 */) {\n const pixels = this.width * this.height;\n if (pixels > this._canvas.length) {\n if (this._opts.memoryLimit && pixels * 4 > this._opts.memoryLimit) {\n this.release();\n throw new Error('image exceeds memory limit');\n }\n this._canvas = new Uint32Array(pixels);\n }\n this._maxWidth = this._width;\n }\n else if (mode === 1 /* M1 */) {\n if (this._level === 2) {\n // got raster attributes, use them as initial size hint\n const pixels = Math.min(this._rasterWidth, wasm_1.LIMITS.MAX_WIDTH) * this._rasterHeight;\n if (pixels > this._canvas.length) {\n if (this._opts.memoryLimit && pixels * 4 > this._opts.memoryLimit) {\n this.release();\n throw new Error('image exceeds memory limit');\n }\n this._canvas = new Uint32Array(pixels);\n }\n }\n else {\n // else fallback to generic resizing, starting with 256*256 pixels\n if (this._canvas.length < 65536) {\n this._canvas = new Uint32Array(65536);\n }\n }\n }\n return 0; // 0 - continue, 1 - abort right away\n }\n _realloc(offset, additionalPixels) {\n const pixels = offset + additionalPixels;\n if (pixels > this._canvas.length) {\n if (this._opts.memoryLimit && pixels * 4 > this._opts.memoryLimit) {\n this.release();\n throw new Error('image exceeds memory limit');\n }\n // extend in 65536 pixel blocks\n const newCanvas = new Uint32Array(Math.ceil(pixels / 65536) * 65536);\n newCanvas.set(this._canvas);\n this._canvas = newCanvas;\n }\n }\n _handle_band(width) {\n const adv = this._PIXEL_OFFSET;\n let offset = this._lastOffset;\n if (this._mode === 2 /* M2 */) {\n let remaining = this.height - this._currentHeight;\n let c = 0;\n while (c < 6 && remaining > 0) {\n this._canvas.set(this._pSrc.subarray(adv * c, adv * c + width), offset + width * c);\n c++;\n remaining--;\n }\n this._lastOffset += width * c;\n this._currentHeight += c;\n }\n else if (this._mode === 1 /* M1 */) {\n this._realloc(offset, width * 6);\n this._maxWidth = Math.max(this._maxWidth, width);\n this._minWidth = Math.min(this._minWidth, width);\n for (let i = 0; i < 6; ++i) {\n this._canvas.set(this._pSrc.subarray(adv * i, adv * i + width), offset + width * i);\n }\n this._bandWidths.push(width);\n this._lastOffset += width * 6;\n this._currentHeight += 6;\n }\n return 0; // 0 - continue, 1 - abort right away\n }\n /**\n * Width of the image data.\n * Returns the rasterWidth in level2/truncating mode,\n * otherwise the max width, that has been seen so far.\n */\n get width() {\n return this._mode !== 1 /* M1 */\n ? this._width\n : Math.max(this._maxWidth, this._wasm.current_width());\n }\n /**\n * Height of the image data.\n * Returns the rasterHeight in level2/truncating mode,\n * otherwise height touched by sixels.\n */\n get height() {\n return this._mode !== 1 /* M1 */\n ? this._height\n : this._wasm.current_width()\n ? this._bandWidths.length * 6 + this._wasm.current_height()\n : this._bandWidths.length * 6;\n }\n /**\n * Get active palette colors as RGBA8888[] (borrowed).\n */\n get palette() {\n return this._palette.subarray(0, this._paletteLimit);\n }\n /**\n * Get the memory used by the decoder.\n *\n * This is a rough estimate accounting the wasm instance memory\n * and pixel buffers held on JS side (real value will be slightly\n * higher due to JS book-keeping).\n * Note that the decoder does not free ressources on its own,\n * call `release` to free excess memory.\n */\n get memoryUsage() {\n return this._canvas.byteLength + this._wasm.memory.buffer.byteLength + 8 * this._bandWidths.length;\n }\n /**\n * Get various properties of the decoder and the current image.\n */\n get properties() {\n return {\n width: this.width,\n height: this.height,\n mode: this._mode,\n level: this._level,\n truncate: !!this._truncate,\n paletteLimit: this._paletteLimit,\n fillColor: this._fillColor,\n memUsage: this.memoryUsage,\n rasterAttributes: {\n numerator: this._states[4],\n denominator: this._states[5],\n width: this._rasterWidth,\n height: this._rasterHeight,\n }\n };\n }\n /**\n * Initialize decoder for next image. Must be called before\n * any calls to `decode` or `decodeString`.\n */\n // FIXME: reorder arguments, better palette handling\n init(fillColor = this._opts.fillColor, palette = this._opts.palette, paletteLimit = this._opts.paletteLimit, truncate = this._opts.truncate) {\n this._wasm.init(this._opts.sixelColor, fillColor, paletteLimit, truncate ? 1 : 0);\n if (palette) {\n this._palette.set(palette.subarray(0, wasm_1.LIMITS.PALETTE_SIZE));\n }\n this._bandWidths.length = 0;\n this._maxWidth = 0;\n this._minWidth = wasm_1.LIMITS.MAX_WIDTH;\n this._lastOffset = 0;\n this._currentHeight = 0;\n }\n /**\n * Decode next chunk of data from start to end index (exclusive).\n * @throws Will throw if the image exceeds the memory limit.\n */\n decode(data, start = 0, end = data.length) {\n let p = start;\n while (p < end) {\n const length = Math.min(end - p, wasm_1.LIMITS.CHUNK_SIZE);\n this._chunk.set(data.subarray(p, p += length));\n this._wasm.decode(0, length);\n }\n }\n /**\n * Decode next chunk of string data from start to end index (exclusive).\n * Note: Decoding from string data is rather slow, use `decode` with byte data instead.\n * @throws Will throw if the image exceeds the memory limit.\n */\n decodeString(data, start = 0, end = data.length) {\n let p = start;\n while (p < end) {\n const length = Math.min(end - p, wasm_1.LIMITS.CHUNK_SIZE);\n for (let i = 0, j = p; i < length; ++i, ++j) {\n this._chunk[i] = data.charCodeAt(j);\n }\n p += length;\n this._wasm.decode(0, length);\n }\n }\n /**\n * Get current pixel data as 32-bit typed array (RGBA8888).\n * Also peeks into pixel data of the current band, that got not pushed yet.\n */\n get data32() {\n if (this._mode === 0 /* M0 */ || !this.width || !this.height) {\n return NULL_CANVAS;\n }\n // get width of pending band to peek into left-over data\n const currentWidth = this._wasm.current_width();\n if (this._mode === 2 /* M2 */) {\n let remaining = this.height - this._currentHeight;\n if (remaining > 0) {\n const adv = this._PIXEL_OFFSET;\n let offset = this._lastOffset;\n let c = 0;\n while (c < 6 && remaining > 0) {\n this._canvas.set(this._pSrc.subarray(adv * c, adv * c + currentWidth), offset + currentWidth * c);\n c++;\n remaining--;\n }\n if (remaining) {\n this._canvas.fill(this._fillColor, offset + currentWidth * c);\n }\n }\n return this._canvas.subarray(0, this.width * this.height);\n }\n if (this._mode === 1 /* M1 */) {\n if (this._minWidth === this._maxWidth) {\n let escape = false;\n if (currentWidth) {\n if (currentWidth !== this._minWidth) {\n escape = true;\n }\n else {\n const adv = this._PIXEL_OFFSET;\n let offset = this._lastOffset;\n this._realloc(offset, currentWidth * 6);\n for (let i = 0; i < 6; ++i) {\n this._canvas.set(this._pSrc.subarray(adv * i, adv * i + currentWidth), offset + currentWidth * i);\n }\n }\n }\n if (!escape) {\n return this._canvas.subarray(0, this.width * this.height);\n }\n }\n // worst case: re-align pixels if we have bands with different width\n // This is somewhat allocation intensive, any way to do that in-place, and just once?\n const final = new Uint32Array(this.width * this.height);\n final.fill(this._fillColor);\n let finalOffset = 0;\n let start = 0;\n for (let i = 0; i < this._bandWidths.length; ++i) {\n const bw = this._bandWidths[i];\n for (let p = 0; p < 6; ++p) {\n final.set(this._canvas.subarray(start, start += bw), finalOffset);\n finalOffset += this.width;\n }\n }\n // also handle left-over pixels of the current band\n if (currentWidth) {\n const adv = this._PIXEL_OFFSET;\n // other than finished bands, this runs only up to currentHeight\n const currentHeight = this._wasm.current_height();\n for (let i = 0; i < currentHeight; ++i) {\n final.set(this._pSrc.subarray(adv * i, adv * i + currentWidth), finalOffset + this.width * i);\n }\n }\n return final;\n }\n // fallthrough for all not handled cases\n return NULL_CANVAS;\n }\n /**\n * Same as `data32`, but returning pixel data as Uint8ClampedArray suitable\n * for direct usage with `ImageData`.\n */\n get data8() {\n return new Uint8ClampedArray(this.data32.buffer, 0, this.width * this.height * 4);\n }\n /**\n * Release image ressources on JS side held by the decoder.\n *\n * The decoder tries to re-use memory ressources of a previous image\n * to lower allocation and GC pressure. Decoding a single big image\n * will grow the memory usage of the decoder permanently.\n * Call `release` to reset the internal buffers and free the memory.\n * Note that this destroys the image data, call it when done processing\n * a rather big image, otherwise it is not needed. Use `memoryUsage`\n * to decide, whether the held memory is still within your limits.\n * This does not affect the wasm module (operates on static memory).\n */\n release() {\n this._canvas = NULL_CANVAS;\n this._bandWidths.length = 0;\n this._maxWidth = 0;\n this._minWidth = wasm_1.LIMITS.MAX_WIDTH;\n // also nullify parser states in wasm to avoid\n // width/height reporting potential out-of-bound values\n this._wasm.init(Colors_1.DEFAULT_FOREGROUND, 0, this._opts.paletteLimit, 0);\n }\n}\nexports.Decoder = Decoder;\n/**\n * Convenient decoding functions for easier usage.\n *\n * These can be used for casual decoding of sixel images,\n * that dont come in as stream chunks.\n * Note that the functions instantiate a stream decoder for every call,\n * which comes with a performance penalty of ~25%.\n */\n/**\n * Decode function with synchronous wasm loading.\n * Can be used in a web worker or in nodejs. Does not work reliable in normal browser context.\n * @throws Will throw if the image exceeds the memory limit.\n */\nfunction decode(data, opts) {\n const dec = new Decoder(opts);\n dec.init();\n typeof data === 'string' ? dec.decodeString(data) : dec.decode(data);\n return {\n width: dec.width,\n height: dec.height,\n data32: dec.data32,\n data8: dec.data8\n };\n}\nexports.decode = decode;\n/**\n * Decode function with asynchronous wasm loading.\n * Use this version in normal browser context.\n * @throws Will throw if the image exceeds the memory limit.\n */\nasync function decodeAsync(data, opts) {\n const dec = await DecoderAsync(opts);\n dec.init();\n typeof data === 'string' ? dec.decodeString(data) : dec.decode(data);\n return {\n width: dec.width,\n height: dec.height,\n data32: dec.data32,\n data8: dec.data8\n };\n}\nexports.decodeAsync = decodeAsync;\n//# sourceMappingURL=Decoder.js.map","\"use strict\";\nObject.defineProperty(exports, \"__esModule\", { value: true });\nexports.LIMITS = void 0;\nexports.LIMITS = {\n CHUNK_SIZE: 16384,\n PALETTE_SIZE: 4096,\n MAX_WIDTH: 16384,\n BYTES: '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'\n};\n//# sourceMappingURL=wasm.js.map","/**\n * Copyright (c) 2024-2026 The xterm.js authors. All rights reserved.\n * @license MIT\n *\n * Minimal event utilities for xterm.js core.\n * Simplified from VS Code's event.ts - no leak detection/profiling.\n */\n\nimport { IDisposable, DisposableStore, toDisposable } from './Lifecycle';\n\nexport interface IEvent<T> {\n (listener: (e: T) => any, thisArgs?: any, disposables?: IDisposable[] | DisposableStore): IDisposable;\n}\n\nexport class Emitter<T> {\n private _listeners: { fn: (e: T) => any, thisArgs: any }[] = [];\n private _disposed = false;\n private _event: IEvent<T> | undefined;\n\n public get event(): IEvent<T> {\n if (this._event) {\n return this._event;\n }\n this._event = (listener: (e: T) => any, thisArgs?: any, disposables?: IDisposable[] | DisposableStore) => {\n if (this._disposed) {\n return toDisposable(() => {});\n }\n\n const entry = { fn: listener, thisArgs };\n this._listeners = this._listeners.slice();\n this._listeners.push(entry);\n\n const result = toDisposable(() => {\n const idx = this._listeners.indexOf(entry);\n if (idx !== -1) {\n this._listeners = this._listeners.slice();\n this._listeners.splice(idx, 1);\n }\n });\n\n if (disposables) {\n if (Array.isArray(disposables)) {\n disposables.push(result);\n } else {\n disposables.add(result);\n }\n }\n\n return result;\n };\n return this._event;\n }\n\n public fire(event: T): void {\n if (this._disposed || !this._listeners.length) {\n return;\n }\n if (this._listeners.length === 1) {\n this._listeners[0].fn.call(this._listeners[0].thisArgs, event);\n return;\n }\n const listeners = this._listeners;\n for (let i = 0, len = listeners.length; i < len; ++i) {\n listeners[i].fn.call(listeners[i].thisArgs, event);\n }\n }\n\n public dispose(): void {\n if (this._disposed) {\n return;\n }\n this._disposed = true;\n this._listeners.length = 0;\n }\n}\n\nexport namespace EventUtils {\n export function forward<T>(from: IEvent<T>, to: Emitter<T>): IDisposable {\n return from(e => to.fire(e));\n }\n\n export function map<I, O>(event: IEvent<I>, map: (i: I) => O): IEvent<O> {\n return (listener: (e: O) => any, thisArgs?: any, disposables?: IDisposable[] | DisposableStore) => {\n return event(i => listener.call(thisArgs, map(i)), undefined, disposables);\n };\n }\n\n export function any<T>(...events: IEvent<T>[]): IEvent<T>;\n export function any(...events: IEvent<any>[]): IEvent<void>;\n export function any<T>(...events: IEvent<T>[]): IEvent<T> {\n return (listener: (e: T) => any, thisArgs?: any, disposables?: IDisposable[] | DisposableStore) => {\n const store = new DisposableStore();\n for (const event of events) {\n store.add(event(e => listener.call(thisArgs, e)));\n }\n if (disposables) {\n if (Array.isArray(disposables)) {\n disposables.push(store);\n } else {\n disposables.add(store);\n }\n }\n return store;\n };\n }\n\n export function runAndSubscribe<T>(event: IEvent<T>, handler: (e: T) => void, initial: T): IDisposable;\n export function runAndSubscribe<T>(event: IEvent<T>, handler: (e: T | undefined) => void): IDisposable;\n export function runAndSubscribe<T>(event: IEvent<T>, handler: (e: T | undefined) => void, initial?: T): IDisposable {\n handler(initial);\n return event(e => handler(e));\n }\n}\n","/**\n * Copyright (c) 2024-2026 The xterm.js authors. All rights reserved.\n * @license MIT\n *\n * Minimal lifecycle utilities for xterm.js core.\n * Simplified from VS Code's lifecycle.ts - no tracking/leak detection.\n */\n\nexport interface IDisposable {\n dispose(): void;\n}\n\nexport function toDisposable(fn: () => void): IDisposable {\n return { dispose: fn };\n}\n\nexport function dispose<T extends IDisposable>(disposable: T): T;\nexport function dispose<T extends IDisposable>(disposable: T | undefined): T | undefined;\nexport function dispose<T extends IDisposable>(disposables: T[]): T[];\nexport function dispose<T extends IDisposable>(arg: T | T[] | undefined): T | T[] | undefined {\n if (!arg) {\n return arg;\n }\n if (Array.isArray(arg)) {\n for (const d of arg) {\n d.dispose();\n }\n return [];\n }\n arg.dispose();\n return arg;\n}\n\nexport function combinedDisposable(...disposables: IDisposable[]): IDisposable {\n return toDisposable(() => dispose(disposables));\n}\n\nexport class DisposableStore implements IDisposable {\n private readonly _disposables = new Set<IDisposable>();\n private _isDisposed = false;\n\n public get isDisposed(): boolean {\n return this._isDisposed;\n }\n\n public add<T extends IDisposable>(o: T): T {\n if (this._isDisposed) {\n o.dispose();\n } else {\n this._disposables.add(o);\n }\n return o;\n }\n\n public dispose(): void {\n if (this._isDisposed) {\n return;\n }\n this._isDisposed = true;\n for (const d of this._disposables) {\n d.dispose();\n }\n this._disposables.clear();\n }\n\n public clear(): void {\n for (const d of this._disposables) {\n d.dispose();\n }\n this._disposables.clear();\n }\n}\n\nexport abstract class Disposable implements IDisposable {\n public static readonly None: IDisposable = Object.freeze({ dispose() { } });\n\n protected readonly _store = new DisposableStore();\n\n public dispose(): void {\n this._store.dispose();\n }\n\n protected _register<T extends IDisposable>(o: T): T {\n return this._store.add(o);\n }\n}\n\nexport class MutableDisposable<T extends IDisposable> implements IDisposable {\n private _value: T | undefined;\n private _isDisposed = false;\n\n public get value(): T | undefined {\n return this._isDisposed ? undefined : this._value;\n }\n\n public set value(value: T | undefined) {\n if (this._isDisposed || value === this._value) {\n return;\n }\n this._value?.dispose();\n this._value = value;\n }\n\n public clear(): void {\n this.value = undefined;\n }\n\n public dispose(): void {\n this._isDisposed = true;\n this._value?.dispose();\n this._value = undefined;\n }\n}\n","/**\n * Copyright (c) 2023 The xterm.js authors. All rights reserved.\n * @license MIT\n */\nimport { IImageAddonOptions, IOscHandler, IResetHandler, ITerminalExt } from './Types';\nimport { ImageRenderer } from './ImageRenderer';\nimport { IIPImageStorage } from './IIPImageStorage';\nimport { CELL_SIZE_DEFAULT } from './ImageStorage';\nimport Base64Decoder from 'xterm-wasm-parts/lib/base64/Base64Decoder.wasm';\nimport QoiDecoder from 'xterm-wasm-parts/lib/qoi/QoiDecoder.wasm';\nimport { HeaderParser, IHeaderFields, HeaderState, SequenceType } from './IIPHeaderParser';\nimport { imageType, UNSUPPORTED_TYPE } from './IIPMetrics';\n\n// Local const enum mirror - esbuild can't inline const enums from external packages\nconst enum DecoderConst {\n // Limit held memory in base64 decoder (encoded bytes).\n KEEP_DATA = 4194304,\n // Initial buffer allocation for the decoder.\n INITIAL_DATA = 1048576,\n // Local mirror of const enum (esbuild can't inline const enums from external packages)\n OK = 0\n}\n\n// default IIP header values\nconst DEFAULT_HEADER: IHeaderFields = {\n type: SequenceType.INVALID,\n name: 'Unnamed file',\n size: 0,\n width: 'auto',\n height: 'auto',\n preserveAspectRatio: 1,\n inline: 0\n};\n\n\nexport class IIPHandler implements IOscHandler, IResetHandler {\n private _aborted = false;\n private _hp = new HeaderParser();\n private _header: IHeaderFields = DEFAULT_HEADER;\n private _dec: Base64Decoder;\n private _qoiDec: QoiDecoder;\n private _isMultipart = false;\n private _abortMulti = false;\n\n constructor(\n private readonly _opts: IImageAddonOptions,\n private readonly _renderer: ImageRenderer,\n private readonly _storage: IIPImageStorage,\n private readonly _coreTerminal: ITerminalExt\n ) {\n const maxEncodedBytes = Math.ceil(this._opts.iipSizeLimit * 4 / 3);\n const initialBytes = Math.min(DecoderConst.INITIAL_DATA, maxEncodedBytes);\n this._dec = new Base64Decoder(DecoderConst.KEEP_DATA, maxEncodedBytes, initialBytes);\n this._qoiDec = new QoiDecoder(DecoderConst.KEEP_DATA);\n }\n\n public reset(): void {\n this._hp.reset();\n this._dec.release();\n this._qoiDec.release();\n }\n\n public start(): void {\n this._aborted = false;\n this._hp.reset();\n }\n\n public put(data: Uint32Array, start: number, end: number): void {\n if (this._aborted) return;\n\n if (this._hp.state === HeaderState.END) {\n if ((this._dec.put(data.subarray(start, end)) as number) !== DecoderConst.OK) {\n this._dec.release();\n this._aborted = true;\n }\n } else {\n const dataPos = this._hp.parse(data, start, end);\n if (dataPos === -1) {\n this._aborted = true;\n return;\n }\n if (dataPos > 0) {\n const seqType = this._hp.fields.type;\n if (seqType === SequenceType.FILE) {\n if (this._isMultipart) {\n this._isMultipart = false;\n this._abortMulti = false;\n this._dec.release();\n }\n this._header = Object.assign({}, DEFAULT_HEADER, this._hp.fields);\n if (!this._header.inline) {\n this._aborted = true;\n return;\n }\n this._dec.init();\n } else if (this._abortMulti) {\n this._aborted = true;\n return;\n }\n if ((this._dec.put(data.subarray(dataPos, end)) as number) !== DecoderConst.OK) {\n this._dec.release();\n this._aborted = true;\n if (this._isMultipart) this._abortMulti = true;\n }\n }\n }\n }\n\n public end(success: boolean): boolean | Promise<boolean> {\n if (this._aborted) return true;\n\n if (this._hp.state !== HeaderState.END) {\n if (this._hp.end()) return true;\n }\n const seqType = this._hp.fields.type;\n\n if (seqType === SequenceType.FILEPART) return true;\n\n if (seqType === SequenceType.REPORTCELLSIZE) {\n // OSC 1337 ; ReportCellSize=[height];[width];[scale] ST\n let w = CELL_SIZE_DEFAULT.width;\n let h = CELL_SIZE_DEFAULT.height;\n if (this._renderer.dimensions) {\n w = this._renderer.dimensions.css.canvas.width / this._coreTerminal.cols;\n h = this._renderer.dimensions.css.canvas.height / this._coreTerminal.rows;\n }\n const scale = this._coreTerminal._core._coreBrowserService?.dpr ?? 1;\n const report = `\\x1b]1337;ReportCellSize=${h.toFixed(3)};${w.toFixed(3)};${scale.toFixed(3)}\\x1b\\\\`;\n this._coreTerminal.input(report, false);\n return true;\n }\n\n if (seqType === SequenceType.MULTIPARTFILE) {\n this._header = Object.assign({}, DEFAULT_HEADER, this._hp.fields);\n this._isMultipart = true;\n this._abortMulti = false;\n this._dec.release();\n this._dec.init();\n return true;\n }\n\n if (seqType === SequenceType.FILEEND) {\n if (!this._isMultipart) return true;\n this._isMultipart = false;\n if (this._abortMulti || this._header.type !== SequenceType.MULTIPARTFILE) return true;\n }\n\n // fallthrough for SequenceType.FILE & SequenceType.FILEEND\n\n let w = 0;\n let h = 0;\n\n // early exit condition chain\n let cond: number | boolean;\n let metrics = UNSUPPORTED_TYPE;\n if (cond = success) {\n if (cond = !this._dec.end()) {\n metrics = imageType(this._dec.data8);\n if (cond = metrics.mime !== 'unsupported') {\n w = metrics.width;\n h = metrics.height;\n if (cond = w && h && w * h < this._opts.pixelLimit) {\n [w, h] = this._resize(w, h).map(Math.floor);\n cond = w && h && w * h < this._opts.pixelLimit;\n } else {\n console.warn(`IIP: image dimension issue ${metrics.width}x${metrics.height}`);\n }\n } else {\n console.warn('IIP: unsupported image type');\n }\n } else {\n console.warn('IIP: error during BASE64 decoding');\n }\n }\n if (!cond) {\n this._dec.release();\n return true;\n }\n\n let blob: Blob | ImageData;\n if (metrics.mime === 'image/qoi') {\n const data = this._qoiDec.decode(this._dec.data8);\n blob = new ImageData(\n new Uint8ClampedArray(data.buffer, data.byteOffset, data.byteLength),\n this._qoiDec.width,\n this._qoiDec.height\n );\n this._qoiDec.release();\n if (w === this._qoiDec.width && h === this._qoiDec.height) {\n // use fast-path if we don't need to rescale\n this._dec.release();\n const canvas = ImageRenderer.createCanvas(undefined, this._qoiDec.width, this._qoiDec.height);\n canvas.getContext('2d')?.putImageData(blob, 0, 0);\n this._storage.addImage(canvas);\n return true;\n }\n } else {\n blob = new Blob([this._dec.data8], { type: metrics.mime });\n }\n this._dec.release();\n return createImageBitmap(blob, { resizeWidth: w, resizeHeight: h })\n .then(bm => {\n this._storage.addImage(bm);\n return true;\n })\n .catch(e => {\n console.warn(`IIP: decoding error ${metrics.mime} ${metrics.width}x${metrics.height}`, e);\n return true;\n });\n }\n\n private _resize(w: number, h: number): [number, number] {\n const cw = this._renderer.dimensions?.css.cell.width || CELL_SIZE_DEFAULT.width;\n const ch = this._renderer.dimensions?.css.cell.height || CELL_SIZE_DEFAULT.height;\n const width = this._renderer.dimensions?.css.canvas.width || cw * this._coreTerminal.cols;\n const height = this._renderer.dimensions?.css.canvas.height || ch * this._coreTerminal.rows;\n\n const rw = this._dim(this._header.width!, width, cw);\n const rh = this._dim(this._header.height!, height, ch);\n if (!rw && !rh) {\n const wf = width / w; // TODO: should this respect initial cursor offset?\n const hf = (height - ch) / h; // TODO: fix offset issues from float cell height\n const f = Math.min(wf, hf);\n return f < 1 ? [w * f, h * f] : [w, h];\n }\n return !rw\n ? [w * rh / h, rh]\n : this._header.preserveAspectRatio || !rw || !rh\n ? [rw, h * rw / w] : [rw, rh];\n }\n\n private _dim(s: string, total: number, cdim: number): number {\n if (s === 'auto') return 0;\n if (s.endsWith('%')) return parseInt(s.slice(0, -1), 10) * total / 100;\n if (s.endsWith('px')) return parseInt(s.slice(0, -2), 10);\n return parseInt(s, 10) * cdim;\n }\n}\n","/**\n * Copyright (c) 2023 The xterm.js authors. All rights reserved.\n * @license MIT\n */\n\n// eslint-disable-next-line\ndeclare const Buffer: any;\n\nexport const enum HeaderState {\n START = 0,\n ABORT = 1,\n KEY = 2,\n VALUE = 3,\n END = 4\n}\n\nexport const enum SequenceType {\n INVALID = 0,\n FILE = 1,\n MULTIPARTFILE = 2,\n FILEPART = 3,\n FILEEND = 4,\n REPORTCELLSIZE = 5\n}\n\nexport interface IHeaderFields {\n [key: string]: number | string | Uint32Array | null | undefined;\n // sequence type\n type: SequenceType;\n // base-64 encoded filename. Defaults to \"Unnamed file\".\n name: string;\n // File size in bytes. The file transfer will be canceled if this size is exceeded.\n size: number;\n /**\n * Optional width and height to render:\n * - N: N character cells.\n * - Npx: N pixels.\n * - N%: N percent of the session's width or height.\n * - auto: The image's inherent size will be used to determine an appropriate dimension.\n */\n width?: string;\n height?: string;\n // Optional, defaults to 1 respecting aspect ratio (width takes precedence).\n preserveAspectRatio?: number;\n // Optional, defaults to 0. If set to 1, the file will be displayed inline, else downloaded\n // (download not supported).\n inline?: number;\n}\n\n// field value decoders\n\n// ASCII bytes to string\nfunction toStr(data: Uint32Array): string {\n let s = '';\n for (let i = 0; i < data.length; ++i) {\n s += String.fromCharCode(data[i]);\n }\n return s;\n}\n\n// digits to integer\nfunction toInt(data: Uint32Array): number {\n let v = 0;\n for (let i = 0; i < data.length; ++i) {\n if (data[i] < 48 || data[i] > 57) {\n throw new Error('illegal char');\n }\n v = v * 10 + data[i] - 48;\n }\n return v;\n}\n\n// check for correct size entry\nfunction toSize(data: Uint32Array): string {\n const v = toStr(data);\n if (!v.match(/^((auto)|(\\d+?((px)|(%)){0,1}))$/)) {\n throw new Error('illegal size');\n }\n return v;\n}\n\n// name is base64 encoded utf-8\nfunction toName(data: Uint32Array): string {\n if (typeof Buffer !== 'undefined') {\n return Buffer.from(toStr(data), 'base64').toString();\n }\n const bs = atob(toStr(data));\n const b = new Uint8Array(bs.length);\n for (let i = 0; i < b.length; ++i) {\n b[i] = bs.charCodeAt(i);\n }\n return new TextDecoder().decode(b);\n}\n\nconst DECODERS: {[key: string]: (v: Uint32Array) => number | string} = {\n inline: toInt,\n size: toInt,\n name: toName,\n width: toSize,\n height: toSize,\n preserveAspectRatio: toInt\n};\n\n\n// sequence type markers\n// File\nconst FILE_MARKER = [70, 105, 108, 101];\n// MultipartFile\nconst MULTIPARTFILE_MARKER = [77, 117, 108, 116, 105, 112, 97, 114, 116, 70, 105, 108, 101];\n// FilePart\nconst FILEPART_MARKER = [70, 105, 108, 101, 80, 97, 114, 116];\n// FileEnd\nconst FILEEND_MARKER = [70, 105, 108, 101, 69, 110, 100];\n// ReportCellSize\nconst REPORTCELLSIZE_MARKER = [82, 101, 112, 111, 114, 116, 67, 101, 108, 108, 83, 105, 122, 101];\n\n// max allowed chars for sequence header\nconst MAX_FIELDCHARS = 1024;\n\n\nexport class HeaderParser {\n public state: HeaderState = HeaderState.START;\n private _buffer = new Uint32Array(MAX_FIELDCHARS);\n private _position = 0;\n private _key = '';\n public fields: {[key: string]: number | string | Uint32Array | null | undefined} = {};\n\n public reset(): void {\n this._buffer.fill(0);\n this.state = HeaderState.START;\n this._position = 0;\n this.fields = {};\n this._key = '';\n }\n\n public end(): number {\n if (this.state === HeaderState.START) {\n if (this._position === FILEEND_MARKER.length) {\n for (let k = 0; k < FILEEND_MARKER.length; ++k) {\n if (this._buffer[k] !== FILEEND_MARKER[k]) return this._a();\n }\n this.fields['type'] = SequenceType.FILEEND;\n this.state = HeaderState.END;\n return 0;\n }\n if (this._position === REPORTCELLSIZE_MARKER.length) {\n for (let k = 0; k < REPORTCELLSIZE_MARKER.length; ++k) {\n if (this._buffer[k] !== REPORTCELLSIZE_MARKER[k]) return this._a();\n }\n this.fields['type'] = SequenceType.REPORTCELLSIZE;\n this.state = HeaderState.END;\n return 0;\n }\n return this._a();\n }\n if (this.state === HeaderState.END) return 0;\n if (this.state === HeaderState.VALUE\n && this.fields.type === SequenceType.MULTIPARTFILE\n ) {\n if (!this._storeValue(this._position)) return this._a();\n this.state = HeaderState.END;\n return 0;\n }\n return this._a();\n }\n\n public parse(data: Uint32Array, start: number, end: number): number {\n let state = this.state;\n let pos = this._position;\n const buffer = this._buffer;\n if (state === HeaderState.ABORT || state === HeaderState.END) return -1;\n if (state === HeaderState.START && pos > 14) return -1;\n for (let i = start; i < end; ++i) {\n const c = data[i];\n switch (c) {\n case 59: // ;\n if (!this._storeValue(pos)) return this._a();\n state = HeaderState.KEY;\n pos = 0;\n break;\n case 61: // =\n if (state === HeaderState.START) {\n if (buffer[0] === 70) {\n // 'File' or 'FilePart'\n let k = 0;\n for (; k < FILE_MARKER.length; ++k) {\n if (buffer[k] !== FILE_MARKER[k]) return this._a();\n }\n this.fields['type'] = SequenceType.FILE;\n if (pos === FILEPART_MARKER.length) {\n for (; k < FILEPART_MARKER.length; ++k) {\n if (buffer[k] !== FILEPART_MARKER[k]) return this._a();\n }\n this.fields['type'] = SequenceType.FILEPART;\n this.state = HeaderState.END;\n return i + 1;\n }\n } else if (buffer[0] === 77) {\n // 'MultipartFile'\n for (let k = 0; k < MULTIPARTFILE_MARKER.length; ++k) {\n if (buffer[k] !== MULTIPARTFILE_MARKER[k]) return this._a();\n }\n this.fields['type'] = SequenceType.MULTIPARTFILE;\n } else {\n return this._a();\n }\n state = HeaderState.KEY;\n pos = 0;\n } else if (state === HeaderState.KEY) {\n if (!this._storeKey(pos)) return this._a();\n state = HeaderState.VALUE;\n pos = 0;\n } else if (state === HeaderState.VALUE) {\n if (pos >= MAX_FIELDCHARS) return this._a();\n buffer[pos++] = c;\n }\n break;\n case 58: // :\n if (state === HeaderState.VALUE) {\n if (!this._storeValue(pos)) return this._a();\n }\n this.state = HeaderState.END;\n return i + 1;\n default:\n if (pos >= MAX_FIELDCHARS) return this._a();\n buffer[pos++] = c;\n }\n }\n this.state = state;\n this._position = pos;\n return -2;\n }\n\n private _a(): number {\n this.fields.type = SequenceType.INVALID;\n this.state = HeaderState.ABORT;\n return -1;\n }\n\n private _storeKey(pos: number): boolean {\n const k = toStr(this._buffer.subarray(0, pos));\n if (k) {\n this._key = k;\n this.fields[k] = null;\n return true;\n }\n return false;\n }\n\n private _storeValue(pos: number): boolean {\n if (this._key) {\n try {\n const v = this._buffer.slice(0, pos);\n this.fields[this._key] = DECODERS[this._key] ? DECODERS[this._key](v) : v;\n } catch {\n return false;\n }\n return true;\n }\n return false;\n }\n}\n","/**\n * Copyright (c) 2023 The xterm.js authors. All rights reserved.\n * @license MIT\n */\n\nimport { IAddImageOpts } from './Types';\nimport { ImageStorage } from './ImageStorage';\n\n/**\n * IIP (iTerm Image Protocol) specific image storage controller.\n *\n * Wraps the shared ImageStorage with IIP protocol semantics:\n * - Always uses scrolling mode (cursor advances with image)\n */\nexport class IIPImageStorage {\n private _addImageOpts: IAddImageOpts = { scrolling: true, layer: 'top', zIndex: 0, cursorPos: 'iip' };\n constructor(\n private readonly _storage: ImageStorage\n ) {}\n\n /**\n * Add an IIP image to storage.\n * Always uses scrolling mode — cursor advances past the image.\n */\n public addImage(img: HTMLCanvasElement | ImageBitmap): void {\n this._storage.addImage(img, this._addImageOpts);\n }\n}\n","/**\n * Copyright (c) 2023 The xterm.js authors. All rights reserved.\n * @license MIT\n */\n\n\nexport type ImageType = 'image/png' | 'image/jpeg' | 'image/gif' | 'image/qoi' | 'image/webp' | 'image/avif' | 'unsupported' | '';\n\nexport interface IMetrics {\n mime: ImageType;\n width: number;\n height: number;\n}\n\nexport const UNSUPPORTED_TYPE: IMetrics = {\n mime: 'unsupported',\n width: 0,\n height: 0\n};\n\nexport function imageType(d: Uint8Array): IMetrics {\n if (d.length < 32) {\n return UNSUPPORTED_TYPE;\n }\n const d32 = new Uint32Array(d.buffer, d.byteOffset, 8);\n // PNG: 89 50 4E 47 0D 0A 1A 0A (8 first bytes == magic number for PNG)\n // + first chunk must be IHDR\n if (d32[0] === 0x474E5089 && d32[1] === 0x0A1A0A0D && d32[3] === 0x52444849) {\n return {\n mime: 'image/png',\n width: d[16] << 24 | d[17] << 16 | d[18] << 8 | d[19],\n height: d[20] << 24 | d[21] << 16 | d[22] << 8 | d[23]\n };\n }\n // JPEG: FF D8 FF\n if (d[0] === 0xFF && d[1] === 0xD8 && d[2] === 0xFF) {\n const [width, height] = jpgSize(d);\n return { mime: 'image/jpeg', width, height };\n }\n // GIF: GIF87a or GIF89a\n if (d32[0] === 0x38464947 && (d[4] === 0x37 || d[4] === 0x39) && d[5] === 0x61) {\n return {\n mime: 'image/gif',\n width: d[7] << 8 | d[6],\n height: d[9] << 8 | d[8]\n };\n }\n // QOI: qoif\n if (d32[0] === 0x66696F71) {\n return {\n mime: 'image/qoi',\n width: d[4] << 24 | d[5] << 16 | d[6] << 8 | d[7],\n height: d[8] << 24 | d[9] << 16 | d[10] << 8 | d[11]\n };\n }\n // WEBP: RIFF | xxxx | WEBP | VP8x\n if (d32[0] === 0x46464952 && d32[2] === 0x50424557 && (d32[3] & 0xFFFFFF) === 0x385056) {\n switch (d[15]) {\n case 0x58: // Extended WebP VP8X --> \"X\"\n return {\n mime: 'image/webp',\n width: (d[24] | d[25] << 8 | d[26] << 16) + 1,\n height: (d[27] | d[28] << 8 | d[29] << 16) + 1\n };\n case 0x4C: // Lossless WebP VP8L --> \"L\"\n if (d[20] !== 0x2f) return UNSUPPORTED_TYPE;\n const dim = d[21] | d[22] << 8 | d[23] << 16 | d[24] << 24;\n return {\n mime: 'image/webp',\n width: (dim & 0x3FFF) + 1,\n height: (dim >>> 14 & 0x3FFF) + 1\n };\n case 0x20: // Lossy WebP VP8 --> \" \"\n if (d[23] !== 0x9d || d[24] !== 0x01 || d[25] !== 0x2a) return UNSUPPORTED_TYPE;\n return {\n mime: 'image/webp',\n width: (d[26] | d[27] << 8) & 0x3FFF,\n height: (d[28] | d[29] << 8) & 0x3FFF\n };\n }\n return UNSUPPORTED_TYPE;\n }\n // AVIF: Box size | ftyp | avif/avis\n if (d32[1] === 0x70797466 && (d32[2] === 0x66697661 || d32[2] === 0x73697661)) {\n let pos = -1;\n // search for ispe box within first 1024 bytes\n const limit = Math.min(d.length - 16, 1024);\n for (let i = 8; i < limit; i++) {\n // scan for ispe\n if (d[i] === 0x69 && d[i + 1] === 0x73 && d[i + 2] === 0x70 && d[i + 3] === 0x65) {\n pos = i;\n break;\n }\n }\n if (pos !== -1) {\n // dimensions are in BE at +8 (width) at +12 (height)\n const width =\n d[pos + 8] << 24 |\n d[pos + 9] << 16 |\n d[pos + 10] << 8 |\n d[pos + 11];\n const height =\n d[pos + 12] << 24 |\n d[pos + 13] << 16 |\n d[pos + 14] << 8 |\n d[pos + 15];\n if (width > 0 && height > 0) {\n return { mime: 'image/avif', width, height };\n }\n }\n return UNSUPPORTED_TYPE;\n }\n return UNSUPPORTED_TYPE;\n}\n\n\nfunction jpgSize(d: Uint8Array): [number, number] {\n const len = d.length;\n let i = 4;\n let blockLength = d[i] << 8 | d[i + 1];\n while (true) {\n i += blockLength;\n if (i >= len) {\n // exhausted without size info\n return [0, 0];\n }\n if (d[i] !== 0xFF) {\n return [0, 0];\n }\n if (d[i + 1] === 0xC0 || d[i + 1] === 0xC2) {\n if (i + 8 < len) {\n return [\n d[i + 7] << 8 | d[i + 8],\n d[i + 5] << 8 | d[i + 6]\n ];\n }\n return [0, 0];\n }\n i += 2;\n blockLength = d[i] << 8 | d[i + 1];\n }\n}\n","/**\n * Copyright (c) 2020 The xterm.js authors. All rights reserved.\n * @license MIT\n */\n\nimport { toRGBA8888 } from 'sixel/lib/Colors';\nimport { IDisposable } from '@xterm/xterm';\nimport { ICellSize, ImageLayer, ITerminalExt, IImageSpec, IRenderDimensions, IRenderService } from './Types';\nimport { Disposable, MutableDisposable, toDisposable } from 'common/Lifecycle';\n\nconst enum Constants {\n PLACEHOLDER_LENGTH = 4096,\n PLACEHOLDER_HEIGHT = 24\n}\n\n/**\n * ImageRenderer - terminal frontend extension:\n * - provide primitives for canvas, ImageData, Bitmap (static)\n * - add canvas layer to DOM (browser only for now)\n * - draw image tiles onRender\n */\nexport class ImageRenderer extends Disposable implements IDisposable {\n /** @deprecated Kept for backward compat — points to top layer canvas. */\n public get canvas(): HTMLCanvasElement | undefined { return this._layers.get('top')?.canvas; }\n private _layers = new Map<ImageLayer, CanvasRenderingContext2D>();\n private _placeholder: HTMLCanvasElement | undefined;\n private _placeholderBitmap: ImageBitmap | undefined;\n private _optionsRefresh = this._register(new MutableDisposable());\n private _oldOpen: ((parent: HTMLElement) => void) | undefined;\n private _renderService: IRenderService | undefined;\n private _oldSetRenderer: ((renderer: any) => void) | undefined;\n\n // drawing primitive - canvas\n public static createCanvas(localDocument: Document | undefined, width: number, height: number): HTMLCanvasElement {\n /**\n * NOTE: We normally dont care, from which document the canvas\n * gets created, so we can fall back to global document,\n * if the terminal has no document associated yet.\n * This way early image loads before calling .open keep working\n * (still discouraged though, as the metrics will be screwed up).\n * Only the DOM output canvas should be on the terminal's document,\n * which gets explicitly checked in `insertLayerToDom`.\n */\n const canvas = (localDocument ?? document).createElement('canvas');\n canvas.width = width | 0;\n canvas.height = height | 0;\n return canvas;\n }\n\n // drawing primitive - ImageData with optional buffer\n public static createImageData(ctx: CanvasRenderingContext2D, width: number, height: number, buffer?: ArrayBuffer): ImageData {\n if (typeof ImageData !== 'function') {\n const imgData = ctx.createImageData(width, height);\n if (buffer) {\n imgData.data.set(new Uint8ClampedArray(buffer, 0, width * height * 4));\n }\n return imgData;\n }\n return buffer\n ? new ImageData(new Uint8ClampedArray(buffer, 0, width * height * 4), width, height)\n : new ImageData(width, height);\n }\n\n // drawing primitive - ImageBitmap\n public static createImageBitmap(img: ImageBitmapSource): Promise<ImageBitmap | undefined> {\n if (typeof createImageBitmap !== 'function') {\n return Promise.resolve(undefined);\n }\n return createImageBitmap(img);\n }\n\n\n constructor(private _terminal: ITerminalExt) {\n super();\n this._oldOpen = this._terminal._core.open;\n this._terminal._core.open = (parent: HTMLElement): void => {\n this._oldOpen?.call(this._terminal._core, parent);\n this._open();\n };\n if (this._terminal._core.screenElement) {\n this._open();\n }\n // hack to spot fontSize changes\n this._optionsRefresh.value = this._terminal._core.optionsService.onOptionChange(option => {\n if (option === 'fontSize') {\n this.rescaleCanvas();\n this._renderService?.refreshRows(0, this._terminal.rows);\n }\n });\n this._register(toDisposable(() => {\n this.removeLayerFromDom();\n this.removeLayerFromDom('bottom');\n if (this._terminal._core && this._oldOpen) {\n this._terminal._core.open = this._oldOpen;\n this._oldOpen = undefined;\n }\n if (this._renderService && this._oldSetRenderer) {\n this._renderService.setRenderer = this._oldSetRenderer;\n this._oldSetRenderer = undefined;\n }\n this._renderService = undefined;\n this._layers.clear();\n this._placeholderBitmap?.close();\n this._placeholderBitmap = undefined;\n this._placeholder = undefined;\n }));\n }\n\n /**\n * Enable the placeholder.\n */\n public showPlaceholder(value: boolean): void {\n if (value) {\n if (!this._placeholder && this.cellSize.height !== -1) {\n this._createPlaceHolder(Math.max(this.cellSize.height + 1, Constants.PLACEHOLDER_HEIGHT));\n }\n } else {\n this._placeholderBitmap?.close();\n this._placeholderBitmap = undefined;\n this._placeholder = undefined;\n }\n this._renderService?.refreshRows(0, this._terminal.rows);\n }\n\n /**\n * Dimensions of the terminal.\n * Forwarded from internal render service.\n */\n public get dimensions(): IRenderDimensions | undefined {\n return this._terminal.dimensions;\n }\n\n /**\n * Current cell size (float).\n */\n public get cellSize(): ICellSize {\n return {\n width: this.dimensions?.css.cell.width || -1,\n height: this.dimensions?.css.cell.height || -1\n };\n }\n\n /**\n * Clear a region of the image layer canvas.\n */\n public clearLines(start: number, end: number, layer?: ImageLayer): void {\n const y = start * (this.dimensions?.css.cell.height || 0);\n const w = this.dimensions?.css.canvas.width || 0;\n const h = (end + 1 - start) * (this.dimensions?.css.cell.height || 0);\n if (!layer || layer === 'top') {\n this._layers.get('top')?.clearRect(0, y, w, h);\n }\n if (!layer || layer === 'bottom') {\n this._layers.get('bottom')?.clearRect(0, y, w, h);\n }\n }\n\n /**\n * Clear whole image canvas.\n */\n public clearAll(layer?: ImageLayer): void {\n if (!layer || layer === 'top') {\n const ctx = this._layers.get('top');\n ctx?.clearRect(0, 0, ctx.canvas.width, ctx.canvas.height);\n }\n if (!layer || layer === 'bottom') {\n const ctx = this._layers.get('bottom');\n ctx?.clearRect(0, 0, ctx.canvas.width, ctx.canvas.height);\n }\n }\n\n /**\n * Draw neighboring tiles on the image layer canvas.\n */\n public draw(imgSpec: IImageSpec, tileId: number, col: number, row: number, count: number = 1): void {\n const ctx = this._layers.get(imgSpec.layer);\n if (!ctx) {\n return;\n }\n const { width, height } = this.cellSize;\n\n // Don't try to draw anything, if we cannot get valid renderer metrics.\n if (width === -1 || height === -1) {\n return;\n }\n\n this._rescaleImage(imgSpec, width, height);\n const img = imgSpec.actual!;\n const cols = Math.ceil(img.width / width);\n\n const sx = (tileId % cols) * width;\n const sy = Math.floor(tileId / cols) * height;\n const dx = col * width;\n const dy = row * height;\n\n // safari bug: never access image source out of bounds\n const finalWidth = count * width + sx > img.width ? img.width - sx : count * width;\n const finalHeight = sy + height > img.height ? img.height - sy : height;\n\n // Floor all pixel offsets to get stable tile mapping without any overflows.\n // Note: For not pixel perfect aligned cells like in the DOM renderer\n // this will move a tile slightly to the top/left (subpixel range, thus ignore it).\n // FIX #34: avoid striping on displays with pixelDeviceRatio != 1 by ceiling height and width\n ctx.drawImage(\n img,\n Math.floor(sx), Math.floor(sy), Math.ceil(finalWidth), Math.ceil(finalHeight),\n Math.floor(dx), Math.floor(dy), Math.ceil(finalWidth), Math.ceil(finalHeight)\n );\n }\n\n /**\n * Extract a single tile from an image.\n */\n public extractTile(imgSpec: IImageSpec, tileId: number): HTMLCanvasElement | undefined {\n const { width, height } = this.cellSize;\n // Don't try to draw anything, if we cannot get valid renderer metrics.\n if (width === -1 || height === -1) {\n return;\n }\n this._rescaleImage(imgSpec, width, height);\n const img = imgSpec.actual!;\n const cols = Math.ceil(img.width / width);\n const sx = (tileId % cols) * width;\n const sy = Math.floor(tileId / cols) * height;\n const finalWidth = width + sx > img.width ? img.width - sx : width;\n const finalHeight = sy + height > img.height ? img.height - sy : height;\n\n const canvas = ImageRenderer.createCanvas(this.document, finalWidth, finalHeight);\n const ctx = canvas.getContext('2d');\n if (ctx) {\n ctx.drawImage(\n img,\n Math.floor(sx), Math.floor(sy), Math.floor(finalWidth), Math.floor(finalHeight),\n 0, 0, Math.floor(finalWidth), Math.floor(finalHeight)\n );\n return canvas;\n }\n }\n\n /**\n * Draw a line with placeholder on the image layer canvas.\n */\n public drawPlaceholder(col: number, row: number, count: number = 1): void {\n const ctx = this._layers.get('top');\n if (ctx) {\n const { width, height } = this.cellSize;\n\n // Don't try to draw anything, if we cannot get valid renderer metrics.\n if (width === -1 || height === -1) {\n return;\n }\n\n if (!this._placeholder) {\n this._createPlaceHolder(Math.max(height + 1, Constants.PLACEHOLDER_HEIGHT));\n } else if (height >= this._placeholder!.height) {\n this._createPlaceHolder(height + 1);\n }\n if (!this._placeholder) return;\n ctx.drawImage(\n this._placeholderBitmap ?? this._placeholder!,\n col * width,\n (row * height) % 2 ? 0 : 1, // needs %2 offset correction\n width * count,\n height,\n col * width,\n row * height,\n width * count,\n height\n );\n }\n }\n\n /**\n * Rescale image layer canvas if needed.\n * Checked once from `ImageStorage.render`.\n */\n public rescaleCanvas(): void {\n const w = this.dimensions?.css.canvas.width || 0;\n const h = this.dimensions?.css.canvas.height || 0;\n for (const ctx of this._layers.values()) {\n if (ctx.canvas.width !== w || ctx.canvas.height !== h) {\n ctx.canvas.width = w;\n ctx.canvas.height = h;\n }\n }\n }\n\n /**\n * Rescale image in storage if needed.\n */\n private _rescaleImage(spec: IImageSpec, currentWidth: number, currentHeight: number): void {\n if (currentWidth === spec.actualCellSize.width && currentHeight === spec.actualCellSize.height) {\n return;\n }\n const { width: originalWidth, height: originalHeight } = spec.origCellSize;\n if (currentWidth === originalWidth && currentHeight === originalHeight) {\n spec.actual = spec.orig;\n spec.actualCellSize.width = originalWidth;\n spec.actualCellSize.height = originalHeight;\n return;\n }\n const canvas = ImageRenderer.createCanvas(\n this.document,\n Math.ceil(spec.orig!.width * currentWidth / originalWidth),\n Math.ceil(spec.orig!.height * currentHeight / originalHeight)\n );\n const ctx = canvas.getContext('2d');\n if (ctx) {\n ctx.drawImage(spec.orig!, 0, 0, canvas.width, canvas.height);\n spec.actual = canvas;\n spec.actualCellSize.width = currentWidth;\n spec.actualCellSize.height = currentHeight;\n }\n }\n\n /**\n * Lazy init for the renderer.\n */\n private _open(): void {\n this._renderService = this._terminal._core._renderService;\n this._oldSetRenderer = this._renderService.setRenderer.bind(this._renderService);\n this._renderService.setRenderer = (renderer: any) => {\n for (const key of [...this._layers.keys()]) {\n this.removeLayerFromDom(key);\n }\n this._oldSetRenderer?.call(this._renderService, renderer);\n };\n }\n\n public insertLayerToDom(layer: ImageLayer = 'top'): void {\n // make sure that the terminal is attached to a document and to DOM\n if (!this.document || !this._terminal._core.screenElement) {\n console.warn('image addon: cannot insert output canvas to DOM, missing document or screenElement');\n return;\n }\n if (this._layers.has(layer)) {\n return;\n }\n const canvas = ImageRenderer.createCanvas(\n this.document, this.dimensions?.css.canvas.width || 0,\n this.dimensions?.css.canvas.height || 0\n );\n canvas.classList.add(`xterm-image-layer-${layer}`);\n const screenElement = this._terminal._core.screenElement;\n // Use isolation to create a stacking context without overriding z-index,\n // which would conflict with integrators (e.g. VS Code) that set their\n // own z-index on the screen element.\n screenElement.style.isolation = 'isolate';\n if (layer === 'bottom') {\n // Use z-index:-1 so it paints behind non-positioned text elements.\n // The screen element needs to be a stacking context (via isolation)\n // to contain the negative z-index, otherwise it would go behind the\n // entire terminal.\n canvas.style.zIndex = '-1';\n screenElement.insertBefore(canvas, screenElement.firstChild);\n } else {\n // Explicit z-index ensures the image canvas reliably stacks above\n // the text layer (DOM renderer rows). z-index: 0 is below the\n // selection overlay (z-index: 1).\n canvas.style.zIndex = '0';\n screenElement.appendChild(canvas);\n }\n const ctx = canvas.getContext('2d', { alpha: true });\n if (!ctx) {\n canvas.remove();\n return;\n }\n this._layers.set(layer, ctx);\n this.clearAll(layer);\n }\n\n public removeLayerFromDom(layer: ImageLayer = 'top'): void {\n const ctx = this._layers.get(layer);\n if (ctx) {\n ctx.canvas.remove();\n this._layers.delete(layer);\n }\n }\n\n public hasLayer(layer: ImageLayer): boolean {\n return this._layers.has(layer);\n }\n\n private _createPlaceHolder(height: number = Constants.PLACEHOLDER_HEIGHT): void {\n this._placeholderBitmap?.close();\n this._placeholderBitmap = undefined;\n\n // create blueprint to fill placeholder with\n const bWidth = 32; // must be 2^n\n const blueprint = ImageRenderer.createCanvas(this.document, bWidth, height);\n const ctx = blueprint.getContext('2d', { alpha: false });\n if (!ctx) return;\n const imgData = ImageRenderer.createImageData(ctx, bWidth, height);\n const d32 = new Uint32Array(imgData.data.buffer);\n const black = toRGBA8888(0, 0, 0);\n const white = toRGBA8888(255, 255, 255);\n d32.fill(black);\n for (let y = 0; y < height; ++y) {\n const shift = y % 2;\n const offset = y * bWidth;\n for (let x = 0; x < bWidth; x += 2) {\n d32[offset + x + shift] = white;\n }\n }\n ctx.putImageData(imgData, 0, 0);\n\n // create placeholder line, width aligned to blueprint width\n const width = (screen.width + bWidth - 1) & ~(bWidth - 1) || Constants.PLACEHOLDER_LENGTH;\n this._placeholder = ImageRenderer.createCanvas(this.document, width, height);\n const ctx2 = this._placeholder.getContext('2d', { alpha: false });\n if (!ctx2) {\n this._placeholder = undefined;\n return;\n }\n for (let i = 0; i < width; i += bWidth) {\n ctx2.drawImage(blueprint, i, 0);\n }\n ImageRenderer.createImageBitmap(this._placeholder).then(bitmap => this._placeholderBitmap = bitmap);\n }\n\n public get document(): Document | undefined {\n return this._terminal._core._coreBrowserService?.window.document;\n }\n}\n","/**\n * Copyright (c) 2020 The xterm.js authors. All rights reserved.\n * @license MIT\n */\n\nimport { IDisposable } from '@xterm/xterm';\nimport { ImageRenderer } from './ImageRenderer';\nimport {\n ITerminalExt, IExtendedAttrsImage, IImageAddonOptions, IImageSpec,\n IBufferLineExt, BgFlags, Cell, Content, ICellSize, ExtFlags, Attributes,\n UnderlineStyle, IAddImageOpts\n} from './Types';\n\n\n// fallback default cell size\nexport const CELL_SIZE_DEFAULT: ICellSize = {\n width: 7,\n height: 14\n};\n\n/**\n * Extend extended attribute to also hold image tile information.\n *\n * Object definition is copied from base repo to fully mimick its behavior.\n * Image data is added as additional public properties `imageId` and `tileId`.\n */\nclass ExtendedAttrsImage implements IExtendedAttrsImage {\n private _ext: number = 0;\n public get ext(): number {\n if (this._urlId) {\n return (\n (this._ext & ~ExtFlags.UNDERLINE_STYLE) |\n (this.underlineStyle << 26)\n );\n }\n return this._ext;\n }\n public set ext(value: number) { this._ext = value; }\n\n public get underlineStyle(): UnderlineStyle {\n // Always return the URL style if it has one\n if (this._urlId) {\n return UnderlineStyle.DASHED;\n }\n return (this._ext & ExtFlags.UNDERLINE_STYLE) >> 26;\n }\n public set underlineStyle(value: UnderlineStyle) {\n this._ext &= ~ExtFlags.UNDERLINE_STYLE;\n this._ext |= (value << 26) & ExtFlags.UNDERLINE_STYLE;\n }\n\n public get underlineColor(): number {\n return this._ext & (Attributes.CM_MASK | Attributes.RGB_MASK);\n }\n public set underlineColor(value: number) {\n this._ext &= ~(Attributes.CM_MASK | Attributes.RGB_MASK);\n this._ext |= value & (Attributes.CM_MASK | Attributes.RGB_MASK);\n }\n\n public get underlineVariantOffset(): number {\n const val = (this._ext & ExtFlags.VARIANT_OFFSET) >> 29;\n if (val < 0) {\n return val ^ 0xFFFFFFF8;\n }\n return val;\n }\n public set underlineVariantOffset(value: number) {\n this._ext &= ~ExtFlags.VARIANT_OFFSET;\n this._ext |= (value << 29) & ExtFlags.VARIANT_OFFSET;\n }\n\n private _urlId: number = 0;\n public get urlId(): number {\n return this._urlId;\n }\n public set urlId(value: number) {\n this._urlId = value;\n }\n\n constructor(\n ext: number = 0,\n urlId: number = 0,\n public imageId = -1,\n public tileId = -1\n ) {\n this._ext = ext;\n this._urlId = urlId;\n }\n\n public clone(): IExtendedAttrsImage {\n /**\n * Technically we dont need a clone variant of ExtendedAttrsImage,\n * as we never clone a cell holding image data.\n * Note: Clone is only meant to be used by the InputHandler for\n * sticky attributes, which is never the case for image data.\n * We still provide a proper clone method to reflect the full ext attr\n * state in case there are future use cases for clone.\n */\n return new ExtendedAttrsImage(this._ext, this._urlId, this.imageId, this.tileId);\n }\n\n public isEmpty(): boolean {\n return this.underlineStyle === UnderlineStyle.NONE && this._urlId === 0 && this.imageId === -1;\n }\n}\nconst EMPTY_ATTRS = new ExtendedAttrsImage();\n\n\n/**\n * ImageStorage - extension of CoreTerminal:\n * - hold image data\n * - write/read image data to/from buffer\n *\n * TODO: image composition for overwrites\n */\nexport class ImageStorage implements IDisposable {\n // storage\n private _images: Map<number, IImageSpec> = new Map();\n // last used id\n private _lastId = 0;\n // last evicted id\n private _lowestId = 0;\n // whether a full clear happened before\n private _fullyCleared = false;\n // whether render should do a full clear\n private _needsFullClear = false;\n // hard limit of stored pixels (fallback limit of 10 MB)\n private _pixelLimit: number = 2500000;\n\n private _viewportMetrics: { cols: number, rows: number };\n public onImageAdded: (() => void) | undefined;\n public onImageDeleted: ((storageId: number) => void) | undefined;\n\n constructor(\n private _terminal: ITerminalExt,\n private _renderer: ImageRenderer,\n private _opts: IImageAddonOptions\n ) {\n try {\n this.setLimit(this._opts.storageLimit);\n } catch (e: unknown) {\n if (e instanceof Error) {\n console.error(e.message);\n }\n console.warn(`storageLimit is set to ${this.getLimit()} MB`);\n }\n this._viewportMetrics = {\n cols: this._terminal.cols,\n rows: this._terminal.rows\n };\n }\n\n public dispose(): void {\n this.reset();\n }\n\n public reset(): void {\n for (const spec of this._images.values()) {\n spec.marker?.dispose();\n }\n // NOTE: marker.dispose above already calls ImageBitmap.close\n // therefore we can just wipe the map here\n this._images.clear();\n this._renderer.clearAll();\n }\n\n public getLimit(): number {\n return this._pixelLimit * 4 / 1000000;\n }\n\n public setLimit(value: number): void {\n if (value < 0.5 || value > 1000) {\n throw RangeError('invalid storageLimit, should be at least 0.5 MB and not exceed 1G');\n }\n this._pixelLimit = (value / 4 * 1000000) >>> 0;\n this._evictOldest(0);\n }\n\n public getUsage(): number {\n return this._getStoredPixels() * 4 / 1000000;\n }\n\n private _getStoredPixels(): number {\n let storedPixels = 0;\n for (const spec of this._images.values()) {\n if (spec.orig) {\n storedPixels += spec.orig.width * spec.orig.height;\n if (spec.actual && spec.actual !== spec.orig) {\n storedPixels += spec.actual.width * spec.actual.height;\n }\n }\n }\n return storedPixels;\n }\n\n private _delImg(id: number): void {\n const spec = this._images.get(id);\n if (!spec) return;\n this._images.delete(id);\n // FIXME: really ugly workaround to get bitmaps deallocated :(\n if (window.ImageBitmap && spec.orig instanceof ImageBitmap) {\n spec.orig.close();\n }\n this.onImageDeleted?.(id);\n }\n\n /**\n * Wipe canvas and images on alternate buffer.\n */\n public wipeAlternate(): void {\n // remove all alternate tagged images\n const zero = [];\n for (const [id, spec] of this._images.entries()) {\n if (spec.bufferType === 'alternate') {\n spec.marker?.dispose();\n zero.push(id);\n }\n }\n for (const id of zero) {\n this._delImg(id);\n }\n // mark canvas to be wiped on next render\n this._needsFullClear = true;\n this._fullyCleared = false;\n }\n\n /**\n * Delete an image by its internal storage ID.\n * Used by protocols that support explicit deletion (e.g. Kitty a=d).\n */\n public deleteImage(id: number): void {\n const spec = this._images.get(id);\n if (spec) {\n spec.marker?.dispose();\n this._delImg(id);\n }\n }\n\n /**\n * Method to add an image to the storage.\n * @param img - The image to add (canvas or bitmap).\n * @param opts - Options for addImage:\n * - scrolling: When true, cursor advances with the image.\n * When false, image is placed at ORIGIN and cursor does not move.\n * - layer: Which canvas layer to render on ('top' or 'bottom').\n * - zIndex: Z-index for image layering within the same layer.\n * - cursorPos: 'vt340' for bottom-left, 'iip' for bottom.right.\n * @returns The internal image ID assigned to the stored image.\n */\n public addImage(img: HTMLCanvasElement | ImageBitmap, opts: IAddImageOpts): number {\n // never allow storage to exceed memory limit\n this._evictOldest(img.width * img.height);\n\n // calc rows x cols needed to display the image\n let cellSize = this._renderer.cellSize;\n if (cellSize.width === -1 || cellSize.height === -1) {\n cellSize = CELL_SIZE_DEFAULT;\n }\n const cols = Math.ceil(img.width / cellSize.width);\n const rows = Math.ceil(img.height / cellSize.height);\n\n const imageId = ++this._lastId;\n\n const buffer = this._terminal._core.buffer;\n const termCols = this._terminal.cols;\n const termRows = this._terminal.rows;\n const originX = buffer.x;\n const originY = buffer.y;\n let offset = originX;\n let tileCount = 0;\n\n if (!opts.scrolling) {\n buffer.x = 0;\n buffer.y = 0;\n offset = 0;\n }\n\n this._terminal._core._inputHandler._dirtyRowTracker.markDirty(buffer.y);\n for (let row = 0; row < rows; ++row) {\n const line = buffer.lines.get(buffer.y + buffer.ybase);\n for (let col = 0; col < cols; ++col) {\n if (offset + col >= termCols) break;\n this._writeToCell(line as IBufferLineExt, offset + col, imageId, row * cols + col);\n tileCount++;\n }\n if (opts.scrolling) {\n if (row < rows - 1) this._terminal._core._inputHandler.lineFeed();\n } else {\n if (++buffer.y >= termRows) break;\n }\n buffer.x = offset;\n }\n this._terminal._core._inputHandler._dirtyRowTracker.markDirty(buffer.y);\n\n // cursor positioning modes\n if (opts.scrolling) {\n if (opts.cursorPos === 'iip') {\n buffer.x = Math.min(offset + cols, termCols);\n } else {\n buffer.x = offset;\n }\n } else {\n buffer.x = originX;\n buffer.y = originY;\n }\n\n // deleted images with zero tile count\n const zero = [];\n for (const [id, spec] of this._images.entries()) {\n if (spec.tileCount < 1) {\n spec.marker?.dispose();\n zero.push(id);\n }\n }\n for (const id of zero) {\n this._delImg(id);\n }\n\n // eviction marker:\n // delete the image when the marker gets disposed\n const endMarker = this._terminal.registerMarker(0);\n endMarker?.onDispose(() => {\n const spec = this._images.get(imageId);\n if (spec) {\n this._delImg(imageId);\n }\n });\n\n // since markers do not work on alternate for some reason,\n // we evict images here manually\n if (this._terminal.buffer.active.type === 'alternate') {\n this._evictOnAlternate();\n }\n\n // create storage entry\n const imgSpec: IImageSpec = {\n orig: img,\n origCellSize: cellSize,\n actual: img,\n actualCellSize: { ...cellSize }, // clone needed, since later modified\n marker: endMarker || undefined,\n tileCount,\n bufferType: this._terminal.buffer.active.type,\n layer: opts.layer,\n zIndex: opts.zIndex\n };\n\n // finally add the image\n this._images.set(imageId, imgSpec);\n this.onImageAdded?.();\n return imageId;\n }\n\n\n /**\n * Render method. Collects buffer information and triggers\n * canvas updates.\n */\n // TODO: Should we move this to the ImageRenderer?\n public render(range: { start: number, end: number }): void {\n // Determine which layers have images\n let hasTopImages = false;\n let hasBottomImages = false;\n for (const spec of this._images.values()) {\n if (spec.layer === 'bottom') {\n hasBottomImages = true;\n } else {\n hasTopImages = true;\n }\n if (hasTopImages && hasBottomImages) break;\n }\n\n // Lazily insert layers that are needed\n if (hasTopImages && !this._renderer.hasLayer('top')) {\n this._renderer.insertLayerToDom('top');\n if (!this._renderer.hasLayer('top')) return;\n }\n if (hasBottomImages && !this._renderer.hasLayer('bottom')) {\n this._renderer.insertLayerToDom('bottom');\n }\n\n // rescale if needed\n this._renderer.rescaleCanvas();\n\n // exit early if we dont have any images to test for\n if (!this._images.size) {\n if (!this._fullyCleared) {\n this._renderer.clearAll();\n this._fullyCleared = true;\n this._needsFullClear = false;\n }\n if (this._renderer.hasLayer('top')) {\n this._renderer.removeLayerFromDom('top');\n }\n if (this._renderer.hasLayer('bottom')) {\n this._renderer.removeLayerFromDom('bottom');\n }\n return;\n }\n\n // Remove layers no longer needed\n if (!hasTopImages && this._renderer.hasLayer('top')) {\n this._renderer.clearAll('top');\n this._renderer.removeLayerFromDom('top');\n }\n if (!hasBottomImages && this._renderer.hasLayer('bottom')) {\n this._renderer.clearAll('bottom');\n this._renderer.removeLayerFromDom('bottom');\n }\n\n // buffer switches force a full clear\n if (this._needsFullClear) {\n this._renderer.clearAll();\n this._fullyCleared = true;\n this._needsFullClear = false;\n }\n\n const { start, end } = range;\n const buffer = this._terminal._core.buffer;\n const cols = this._terminal._core.cols;\n\n // clear drawing area\n this._renderer.clearLines(start, end);\n\n // Collect draw calls so we can sort by z-index (lower z drawn first).\n const drawCalls: { imgSpec: IImageSpec, tileId: number, col: number, row: number, count: number }[] = [];\n const placeholderCalls: { col: number, row: number, count: number }[] = [];\n\n // walk all cells in viewport and collect tiles found\n for (let row = start; row <= end; ++row) {\n const line = buffer.lines.get(row + buffer.ydisp) as IBufferLineExt;\n if (!line) return;\n for (let col = 0; col < cols; ++col) {\n if (line.getBg(col) & BgFlags.HAS_EXTENDED) {\n let e: IExtendedAttrsImage = line._extendedAttrs[col] ?? EMPTY_ATTRS;\n const imageId = e.imageId;\n if (imageId === undefined || imageId === -1) {\n continue;\n }\n const imgSpec = this._images.get(imageId);\n if (e.tileId !== -1) {\n const startTile = e.tileId;\n const startCol = col;\n let count = 1;\n /**\n * merge tiles to the right into a single draw call, if:\n * - not at end of line\n * - cell has same image id\n * - cell has consecutive tile id\n */\n while (\n ++col < cols\n && (line.getBg(col) & BgFlags.HAS_EXTENDED)\n && (e = line._extendedAttrs[col] ?? EMPTY_ATTRS)\n && (e.imageId === imageId)\n && (e.tileId === startTile + count)\n ) {\n count++;\n }\n col--;\n if (imgSpec) {\n if (imgSpec.actual) {\n drawCalls.push({ imgSpec, tileId: startTile, col: startCol, row, count });\n }\n } else if (this._opts.showPlaceholder) {\n placeholderCalls.push({ col: startCol, row, count });\n }\n this._fullyCleared = false;\n }\n }\n }\n }\n\n // Sort by z-index so lower z draws first (higher z renders on top)\n drawCalls.sort((a, b) => a.imgSpec.zIndex - b.imgSpec.zIndex);\n\n // Draw placeholders first (lowest priority)\n for (const call of placeholderCalls) {\n this._renderer.drawPlaceholder(call.col, call.row, call.count);\n }\n\n // Draw images in z-index order\n for (const call of drawCalls) {\n this._renderer.draw(call.imgSpec, call.tileId, call.col, call.row, call.count);\n }\n }\n\n public viewportResize(metrics: { cols: number, rows: number }): void {\n // exit early if we have nothing in storage\n if (!this._images.size) {\n this._viewportMetrics = metrics;\n return;\n }\n\n // handle only viewport width enlargements, exit all other cases\n // TODO: needs patch for tile counter\n if (this._viewportMetrics.cols >= metrics.cols) {\n this._viewportMetrics = metrics;\n return;\n }\n\n // walk scrollbuffer at old col width to find all possible expansion matches\n const buffer = this._terminal._core.buffer;\n const rows = buffer.lines.length;\n const oldCol = this._viewportMetrics.cols - 1;\n for (let row = 0; row < rows; ++row) {\n const line = buffer.lines.get(row) as IBufferLineExt;\n if (line.getBg(oldCol) & BgFlags.HAS_EXTENDED) {\n const e: IExtendedAttrsImage = line._extendedAttrs[oldCol] ?? EMPTY_ATTRS;\n const imageId = e.imageId;\n if (imageId === undefined || imageId === -1) {\n continue;\n }\n const imgSpec = this._images.get(imageId);\n if (!imgSpec) {\n continue;\n }\n // found an image tile at oldCol, check if it qualifies for right exapansion\n const tilesPerRow = Math.ceil((imgSpec.actual?.width || 0) / imgSpec.actualCellSize.width);\n if ((e.tileId % tilesPerRow) + 1 >= tilesPerRow) {\n continue;\n }\n // expand only if right side is empty (nothing got wrapped from below)\n let hasData = false;\n for (let rightCol = oldCol + 1; rightCol > metrics.cols; ++rightCol) {\n if (line._data[rightCol * Cell.SIZE + Cell.CONTENT] & Content.HAS_CONTENT_MASK) {\n hasData = true;\n break;\n }\n }\n if (hasData) {\n continue;\n }\n // do right expansion on terminal buffer\n const end = Math.min(metrics.cols, tilesPerRow - (e.tileId % tilesPerRow) + oldCol);\n let lastTile = e.tileId;\n for (let expandCol = oldCol + 1; expandCol < end; ++expandCol) {\n this._writeToCell(line as IBufferLineExt, expandCol, imageId, ++lastTile);\n imgSpec.tileCount++;\n }\n }\n }\n // store new viewport metrics\n this._viewportMetrics = metrics;\n }\n\n /**\n * Retrieve original canvas at buffer position.\n */\n public getImageAtBufferCell(x: number, y: number): HTMLCanvasElement | undefined {\n const buffer = this._terminal._core.buffer;\n const line = buffer.lines.get(y) as IBufferLineExt;\n if (line && line.getBg(x) & BgFlags.HAS_EXTENDED) {\n const e: IExtendedAttrsImage = line._extendedAttrs[x] ?? EMPTY_ATTRS;\n if (e.imageId && e.imageId !== -1) {\n const orig = this._images.get(e.imageId)?.orig;\n if (window.ImageBitmap && orig instanceof ImageBitmap) {\n const canvas = ImageRenderer.createCanvas(window.document, orig.width, orig.height);\n canvas.getContext('2d')?.drawImage(orig, 0, 0, orig.width, orig.height);\n return canvas;\n }\n return orig as HTMLCanvasElement;\n }\n }\n }\n\n /**\n * Extract active single tile at buffer position.\n */\n public extractTileAtBufferCell(x: number, y: number): HTMLCanvasElement | undefined {\n const buffer = this._terminal._core.buffer;\n const line = buffer.lines.get(y) as IBufferLineExt;\n if (line && line.getBg(x) & BgFlags.HAS_EXTENDED) {\n const e: IExtendedAttrsImage = line._extendedAttrs[x] ?? EMPTY_ATTRS;\n if (e.imageId && e.imageId !== -1 && e.tileId !== -1) {\n const spec = this._images.get(e.imageId);\n if (spec) {\n return this._renderer.extractTile(spec, e.tileId);\n }\n }\n }\n }\n\n // TODO: Do we need some blob offloading tricks here to avoid early eviction?\n // also see https://stackoverflow.com/questions/28307789/is-there-any-limitation-on-javascript-max-blob-size\n private _evictOldest(room: number): number {\n const used = this._getStoredPixels();\n let current = used;\n while (this._pixelLimit < current + room && this._images.size) {\n const spec = this._images.get(++this._lowestId);\n if (spec && spec.orig) {\n current -= spec.orig.width * spec.orig.height;\n if (spec.actual && spec.orig !== spec.actual) {\n current -= spec.actual.width * spec.actual.height;\n }\n spec.marker?.dispose();\n this._delImg(this._lowestId);\n }\n }\n return used - current;\n }\n\n private _writeToCell(line: IBufferLineExt, x: number, imageId: number, tileId: number): void {\n if (line._data[x * Cell.SIZE + Cell.BG] & BgFlags.HAS_EXTENDED) {\n const old = line._extendedAttrs[x];\n if (old) {\n if (old.imageId !== undefined) {\n // found an old ExtendedAttrsImage, since we know that\n // they are always isolated instances (single cell usage),\n // we can re-use it and just update their id entries\n const oldSpec = this._images.get(old.imageId);\n if (oldSpec) {\n // early eviction for in-viewport overwrites\n oldSpec.tileCount--;\n }\n old.imageId = imageId;\n old.tileId = tileId;\n return;\n }\n // found a plain ExtendedAttrs instance, clone it to new entry\n line._extendedAttrs[x] = new ExtendedAttrsImage(old.ext, old.urlId, imageId, tileId);\n return;\n }\n }\n // fall-through: always create new ExtendedAttrsImage entry\n line._data[x * Cell.SIZE + Cell.BG] |= BgFlags.HAS_EXTENDED;\n line._extendedAttrs[x] = new ExtendedAttrsImage(0, 0, imageId, tileId);\n }\n\n private _evictOnAlternate(): void {\n // nullify tile count of all images on alternate buffer\n for (const spec of this._images.values()) {\n if (spec.bufferType === 'alternate') {\n spec.tileCount = 0;\n }\n }\n // re-count tiles on whole buffer\n const buffer = this._terminal._core.buffer;\n for (let y = 0; y < this._terminal.rows; ++y) {\n const line = buffer.lines.get(y) as IBufferLineExt;\n if (!line) {\n continue;\n }\n for (let x = 0; x < this._terminal.cols; ++x) {\n if (line._data[x * Cell.SIZE + Cell.BG] & BgFlags.HAS_EXTENDED) {\n const imgId = line._extendedAttrs[x]?.imageId;\n if (imgId) {\n const spec = this._images.get(imgId);\n if (spec) {\n spec.tileCount++;\n }\n }\n }\n }\n }\n // deleted images with zero tile count\n const zero = [];\n for (const [id, spec] of this._images.entries()) {\n if (spec.bufferType === 'alternate' && !spec.tileCount) {\n spec.marker?.dispose();\n zero.push(id);\n }\n }\n for (const id of zero) {\n this._delImg(id);\n }\n }\n}\n","/**\n * Copyright (c) 2020, 2023 The xterm.js authors. All rights reserved.\n * @license MIT\n */\n\nimport { SixelImageStorage } from './SixelImageStorage';\nimport { IDcsHandler, IParams, IImageAddonOptions, ITerminalExt, AttributeData, IResetHandler, ReadonlyColorSet } from './Types';\nimport { toRGBA8888, BIG_ENDIAN, PALETTE_ANSI_256, PALETTE_VT340_COLOR } from 'sixel/lib/Colors';\nimport { RGBA8888 } from 'sixel/lib/Types';\nimport { ImageRenderer } from './ImageRenderer';\n\nimport { DecoderAsync, Decoder } from 'sixel/lib/Decoder';\n\n// always free decoder ressources after decoding if it exceeds this limit\nconst MEM_PERMA_LIMIT = 4194304; // 1024 pixels * 1024 pixels * 4 channels = 4MB\n\n// custom default palette: VT340 (lower 16 colors) + ANSI256 (up to 256) + zeroed (up to 4096)\nconst DEFAULT_PALETTE = PALETTE_ANSI_256;\nDEFAULT_PALETTE.set(PALETTE_VT340_COLOR);\n\n\nexport class SixelHandler implements IDcsHandler, IResetHandler {\n private _size = 0;\n private _aborted = false;\n private _dec: Decoder | undefined;\n\n constructor(\n private readonly _opts: IImageAddonOptions,\n private readonly _storage: SixelImageStorage,\n private readonly _coreTerminal: ITerminalExt\n ) {\n DecoderAsync({\n memoryLimit: this._opts.pixelLimit * 4,\n palette: DEFAULT_PALETTE,\n paletteLimit: this._opts.sixelPaletteLimit\n }).then(d => this._dec = d);\n }\n\n public reset(): void {\n /**\n * reset sixel decoder to defaults:\n * - release all memory\n * - nullify palette (4096)\n * - apply default palette (256)\n */\n if (this._dec) {\n this._dec.release();\n // FIXME: missing interface on decoder to nullify full palette\n (this._dec as any)._palette.fill(0);\n this._dec.init(0, DEFAULT_PALETTE, this._opts.sixelPaletteLimit);\n }\n }\n\n public hook(params: IParams): void {\n this._size = 0;\n this._aborted = false;\n if (this._dec) {\n const fillColor = params.params[1] === 1 ? 0 : extractActiveBg(\n this._coreTerminal._core._inputHandler._curAttrData,\n this._coreTerminal._core._themeService?.colors);\n this._dec.init(fillColor, null, this._opts.sixelPaletteLimit);\n }\n }\n\n public put(data: Uint32Array, start: number, end: number): void {\n if (this._aborted || !this._dec) {\n return;\n }\n this._size += end - start;\n if (this._size > this._opts.sixelSizeLimit) {\n console.warn(`SIXEL: too much data, aborting`);\n this._aborted = true;\n this._dec.release();\n return;\n }\n try {\n this._dec.decode(data, start, end);\n } catch (e) {\n console.warn(`SIXEL: error while decoding image - ${e}`);\n this._aborted = true;\n this._dec.release();\n }\n }\n\n public unhook(success: boolean): boolean | Promise<boolean> {\n if (this._aborted || !success || !this._dec) {\n return true;\n }\n\n const width = this._dec.width;\n const height = this._dec.height;\n\n // partial fix for https://github.com/jerch/xterm-addon-image/issues/37\n if (!width || !height) {\n if (height) {\n this._storage.advanceCursor(height);\n }\n return true;\n }\n\n const canvas = ImageRenderer.createCanvas(undefined, width, height);\n canvas.getContext('2d')?.putImageData(new ImageData(this._dec.data8 as Uint8ClampedArray<ArrayBuffer>, width, height), 0, 0);\n if (this._dec.memoryUsage > MEM_PERMA_LIMIT) {\n this._dec.release();\n }\n this._storage.addImage(canvas);\n return true;\n }\n}\n\n\n/**\n * Some helpers to extract current terminal colors.\n */\n\n// get currently active background color from terminal\n// also respect INVERSE setting\nfunction extractActiveBg(attr: AttributeData, colors: ReadonlyColorSet | undefined): RGBA8888 {\n let bg = 0;\n if (!colors) {\n // FIXME: theme service is prolly not available yet,\n // happens if .open() was not called yet (bug in core?)\n return bg;\n }\n if (attr.isInverse()) {\n if (attr.isFgDefault()) {\n bg = convertLe(colors.foreground.rgba);\n } else if (attr.isFgRGB()) {\n const t = (attr.constructor as typeof AttributeData).toColorRGB(attr.getFgColor());\n bg = toRGBA8888(...t);\n } else {\n bg = convertLe(colors.ansi[attr.getFgColor()].rgba);\n }\n } else {\n if (attr.isBgDefault()) {\n bg = convertLe(colors.background.rgba);\n } else if (attr.isBgRGB()) {\n const t = (attr.constructor as typeof AttributeData).toColorRGB(attr.getBgColor());\n bg = toRGBA8888(...t);\n } else {\n bg = convertLe(colors.ansi[attr.getBgColor()].rgba);\n }\n }\n return bg;\n}\n\n// rgba values on the color managers are always in BE, thus convert to LE\nfunction convertLe(color: number): RGBA8888 {\n if (BIG_ENDIAN) return color;\n return (color & 0xFF) << 24 | (color >>> 8 & 0xFF) << 16 | (color >>> 16 & 0xFF) << 8 | color >>> 24 & 0xFF;\n}\n","/**\n * Copyright (c) 2020 The xterm.js authors. All rights reserved.\n * @license MIT\n */\n\nimport { ImageStorage, CELL_SIZE_DEFAULT } from './ImageStorage';\nimport { IImageAddonOptions, ITerminalExt, IAddImageOpts } from './Types';\nimport { ImageRenderer } from './ImageRenderer';\n\n/**\n * Sixel-specific image storage controller.\n *\n * Wraps the shared ImageStorage with sixel protocol semantics:\n * - Cursor behavior governed by DECSET 80 (sixelScrolling option)\n * - advanceCursor for empty sixels carrying only height\n */\nexport class SixelImageStorage {\n private _addImageOpts: IAddImageOpts = { scrolling: true, layer: 'top', zIndex: 0, cursorPos: 'vt340' };\n constructor(\n private readonly _storage: ImageStorage,\n private readonly _opts: IImageAddonOptions,\n private readonly _renderer: ImageRenderer,\n private readonly _terminal: ITerminalExt\n ) {}\n\n /**\n * Add a sixel image to storage.\n * Cursor behavior depends on the sixelScrolling option (DECSET 80).\n */\n public addImage(img: HTMLCanvasElement | ImageBitmap): void {\n this._addImageOpts.scrolling = this._opts.sixelScrolling;\n this._storage.addImage(img, this._addImageOpts);\n }\n\n /**\n * Only advance text cursor.\n * This is an edge case from empty sixels carrying only a height but no pixels.\n * Partially fixes https://github.com/jerch/xterm-addon-image/issues/37.\n */\n public advanceCursor(height: number): void {\n if (this._opts.sixelScrolling) {\n let cellSize = this._renderer.cellSize;\n if (cellSize.width === -1 || cellSize.height === -1) {\n cellSize = CELL_SIZE_DEFAULT;\n }\n const rows = Math.ceil(height / cellSize.height);\n for (let i = 1; i < rows; ++i) {\n this._terminal._core._inputHandler.lineFeed();\n }\n }\n }\n}\n","/**\n * Copyright (c) 2026 The xterm.js authors. All rights reserved.\n * @license MIT\n */\n\nimport { IDisposable } from '@xterm/xterm';\nimport { IApcHandler, IImageAddonOptions, IResetHandler, ITerminalExt, ImageLayer } from '../Types';\nimport { ImageRenderer } from '../ImageRenderer';\nimport { CELL_SIZE_DEFAULT } from '../ImageStorage';\nimport { KittyImageStorage } from './KittyImageStorage';\nimport Base64Decoder, { type DecodeStatus } from 'xterm-wasm-parts/lib/base64/Base64Decoder.wasm';\nimport {\n KittyAction,\n KittyFormat,\n KittyCompression,\n IKittyCommand,\n IPendingTransmission,\n IKittyImageData,\n KittyPixelConstants,\n parseKittyCommand\n} from './KittyGraphicsTypes';\n\nconst enum Constants {\n // Memory limit for base64 decoder (4MB, same as IIPHandler)\n DECODER_KEEP_DATA = 4194304,\n DECODER_INITIAL_DATA = 4194304, // 4MB\n // Local mirror of const enum (esbuild can't inline const enums from external packages)\n DECODER_OK = 0,\n // Maximum control data size\n MAX_CONTROL_DATA_SIZE = 512,\n // Semicolon codepoint\n SEMICOLON = 0x3B\n}\n\nconst DECODER_OK = Constants.DECODER_OK as unknown as DecodeStatus.OK;\n\n// Kitty graphics protocol handler with streaming base64 decoding.\nexport class KittyGraphicsHandler implements IApcHandler, IResetHandler, IDisposable {\n private _aborted = false;\n private _decodeError = false;\n\n private _activeDecoder: Base64Decoder | null = null;\n private readonly _maxEncodedBytes: number;\n private readonly _initialEncodedBytes: number;\n\n // Streaming related states\n\n // True while receiving control data (before semicolon).\n private _inControlData = true;\n\n // Buffer for control data.\n private _controlData = new Uint32Array(Constants.MAX_CONTROL_DATA_SIZE);\n private _controlLength = 0;\n\n // Pre-calculated encoded size limit\n private _encodedSizeLimit = 0;\n private _totalEncodedSize = 0;\n\n // Parsed command. These are the control data before semicolon.\n private _parsedCommand: IKittyCommand | null = null;\n\n // Storage related states\n\n private _pendingTransmissions: Map<number, IPendingTransmission> = new Map();\n // Tracks the pending key of the most recently started chunked upload.\n // Per spec, subsequent chunks only need m= (and optionally q=), without i=.\n // When a chunk arrives with no i=, this key is used to find the pending upload.\n private _lastPendingKey: number | undefined;\n\n constructor(\n private readonly _opts: IImageAddonOptions,\n private readonly _renderer: ImageRenderer,\n private readonly _kittyStorage: KittyImageStorage,\n private readonly _coreTerminal: ITerminalExt\n ) {\n // Convert decoded size limit -> max encoded bytes.\n this._maxEncodedBytes = Math.ceil(this._opts.kittySizeLimit * 4 / 3);\n // ensure we preallocate more than configured limit while using 4mb initial size.\n this._initialEncodedBytes = Math.min(Constants.DECODER_INITIAL_DATA, this._maxEncodedBytes);\n }\n\n public reset(): void {\n this._cleanupAllPending();\n if (this._activeDecoder) {\n this._activeDecoder.release();\n this._activeDecoder = null;\n }\n this._kittyStorage.reset();\n }\n\n public dispose(): void {\n this.reset();\n }\n\n private _removePendingEntry(key: number): void {\n this._pendingTransmissions.delete(key);\n if (this._lastPendingKey === key) {\n this._lastPendingKey = undefined;\n }\n }\n\n private _cleanupAllPending(): void {\n for (const pending of this._pendingTransmissions.values()) {\n pending.decoder.release();\n }\n this._pendingTransmissions.clear();\n this._lastPendingKey = undefined;\n }\n\n public start(): void {\n this._aborted = false;\n this._decodeError = false;\n this._inControlData = true;\n this._controlLength = 0;\n this._parsedCommand = null;\n // Pre-calculate encoded limit once: base64 is 4 bytes encoded → 3 bytes decoded\n this._encodedSizeLimit = this._maxEncodedBytes;\n this._totalEncodedSize = 0;\n this._activeDecoder = null;\n }\n\n public put(data: Uint32Array, start: number, end: number): void {\n if (this._aborted) return;\n\n if (!this._inControlData) {\n this._streamPayload(data, start, end);\n } else {\n // Scan for semicolon\n let controlEnd = end;\n for (let i = start; i < end; i++) {\n if (data[i] === Constants.SEMICOLON) {\n this._inControlData = false;\n controlEnd = i;\n break;\n }\n }\n\n // Copy control data\n const copyLength = controlEnd - start;\n if (this._controlLength + copyLength > Constants.MAX_CONTROL_DATA_SIZE) {\n this._aborted = true;\n return;\n }\n this._controlData.set(data.subarray(start, controlEnd), this._controlLength);\n this._controlLength += copyLength;\n\n if (!this._inControlData) {\n // Found semicolon - parse control data early for validation\n this._parsedCommand = parseKittyCommand(this._parseControlDataString());\n\n // Early validation: i+I conflict\n if (this._parsedCommand.id !== undefined && this._parsedCommand.imageNumber !== undefined) {\n this._sendResponse(this._parsedCommand.id, 'EINVAL:cannot specify both i and I keys', this._parsedCommand.quiet ?? 0);\n this._aborted = true;\n return;\n }\n\n // Delete action doesn't need payload - skip streaming\n if (this._parsedCommand.action === KittyAction.DELETE) {\n return;\n }\n\n // Stream remaining as payload\n const payloadStart = controlEnd + 1;\n if (payloadStart < end) {\n this._streamPayload(data, payloadStart, end);\n }\n }\n }\n }\n\n // Stream payload bytes into the base64 decoder.\n private _streamPayload(data: Uint32Array, start: number, end: number): void {\n if (this._aborted) return;\n\n // Check size limit (compare encoded bytes against pre-calculated limit)\n // Include cumulative size from pending transmission for multi-chunk images.\n // Per spec, subsequent chunks may omit i=, so fall back to _lastPendingKey.\n const pendingKey = this._parsedCommand?.id ?? this._lastPendingKey ?? 0;\n const pending = this._pendingTransmissions.get(pendingKey);\n const previousEncodedSize = pending?.totalEncodedSize ?? 0;\n this._totalEncodedSize += end - start;\n const cumulativeEncodedSize = previousEncodedSize + this._totalEncodedSize;\n if (cumulativeEncodedSize > this._encodedSizeLimit) {\n const decoderToRelease = this._activeDecoder ?? pending?.decoder;\n if (decoderToRelease) {\n decoderToRelease.release();\n }\n this._activeDecoder = null;\n if (pending) {\n this._removePendingEntry(pendingKey);\n }\n this._aborted = true;\n return;\n }\n\n if (this._decodeError) return;\n\n if (pending?.decoder && !this._activeDecoder) {\n this._activeDecoder = pending.decoder;\n }\n if (!this._activeDecoder) {\n this._activeDecoder = new Base64Decoder(Constants.DECODER_KEEP_DATA, this._maxEncodedBytes, this._initialEncodedBytes);\n this._activeDecoder.init();\n }\n\n if (this._activeDecoder.put(data.subarray(start, end)) !== DECODER_OK) {\n this._activeDecoder.release();\n this._activeDecoder = null;\n this._decodeError = true;\n if (pending) {\n this._removePendingEntry(pendingKey);\n }\n }\n }\n\n public end(success: boolean): boolean | Promise<boolean> {\n if (this._aborted || !success) {\n if (this._activeDecoder) {\n this._activeDecoder.release();\n this._activeDecoder = null;\n }\n return true;\n }\n\n // No semicolon = no payload (delete, capability query)\n if (this._inControlData) {\n return this._handleNoPayloadCommand();\n }\n\n // Use command parsed early in put() - i+I already validated there\n const cmd = this._parsedCommand!;\n\n // Delete action was handled by skipping payload - just execute\n if (cmd.action === KittyAction.DELETE) {\n return this._handleDelete(cmd);\n }\n\n // Per spec, subsequent chunks may omit i=, so fall back to _lastPendingKey.\n const pendingKey = cmd.id ?? this._lastPendingKey ?? 0;\n const isMoreComing = cmd.more === 1;\n const pending = this._pendingTransmissions.get(pendingKey);\n\n if (isMoreComing) {\n if (this._activeDecoder) {\n if (pending) {\n pending.totalEncodedSize += this._totalEncodedSize;\n pending.decodeError = pending.decodeError || this._decodeError;\n } else {\n this._pendingTransmissions.set(pendingKey, {\n cmd: { ...cmd },\n decoder: this._activeDecoder,\n totalEncodedSize: this._totalEncodedSize,\n decodeError: this._decodeError\n });\n }\n this._lastPendingKey = pendingKey;\n this._activeDecoder = null;\n }\n return true;\n }\n\n // Final chunk received — clear the last pending key\n if (pending) {\n this._lastPendingKey = undefined;\n }\n\n let decodeError = this._decodeError;\n let finalCmd = cmd;\n let decoder = this._activeDecoder;\n\n if (pending) {\n finalCmd = pending.cmd;\n decoder = pending.decoder;\n decodeError = decodeError || pending.decodeError;\n this._pendingTransmissions.delete(pendingKey);\n }\n\n let imageBytes = new Uint8Array(0);\n if (decoder) {\n if (decoder.end() !== DECODER_OK) {\n decodeError = true;\n }\n imageBytes = decoder.data8;\n }\n this._activeDecoder = null;\n\n // Handle command first — handlers create Blob/ImageData from imageBytes,\n // which copies the data. Only then is it safe to release the decoder's\n // wasm memory that imageBytes points into.\n const result = this._handleCommandWithBytesAndCmd(finalCmd, imageBytes, decodeError);\n if (decoder) {\n decoder.release();\n }\n return result;\n }\n\n // Command handling\n\n private _parseControlDataString(): string {\n let str = '';\n for (let i = 0; i < this._controlLength; i++) {\n str += String.fromCodePoint(this._controlData[i]);\n }\n return str;\n }\n\n private _handleNoPayloadCommand(): boolean | Promise<boolean> {\n const cmd = parseKittyCommand(this._parseControlDataString());\n\n // Per spec: specifying both i and I is an error\n if (cmd.id !== undefined && cmd.imageNumber !== undefined) {\n this._sendResponse(cmd.id, 'EINVAL:cannot specify both i and I keys', cmd.quiet ?? 0);\n return true;\n }\n\n const action = cmd.action ?? 't';\n\n switch (action) {\n case KittyAction.DELETE:\n return this._handleDelete(cmd);\n case KittyAction.QUERY:\n this._sendResponse(cmd.id ?? 0, 'OK', cmd.quiet ?? 0);\n return true;\n case KittyAction.PLACEMENT:\n return this._handlePlacement(cmd);\n default:\n // TODO: Implement remaining actions when needed:\n // - a=f (frame): animation frame operations\n // - a=a (animation): animation control\n // - a=c (compose): compose images\n if (cmd.id !== undefined) {\n this._sendResponse(cmd.id, 'EINVAL:unsupported action', cmd.quiet ?? 0);\n }\n return true;\n }\n }\n\n private _handleCommandWithBytesAndCmd(cmd: IKittyCommand, bytes: Uint8Array, decodeError: boolean): boolean | Promise<boolean> {\n const action = cmd.action ?? 't';\n\n switch (action) {\n case KittyAction.TRANSMIT: {\n const result = this._handleTransmit(cmd, bytes, decodeError);\n // Only send response when _handleTransmit didn't already respond\n // (it handles unsupported transmission medium responses internally)\n if ((cmd.transmission ?? 'd') === 'd' && cmd.id !== undefined) {\n if (decodeError) {\n this._sendResponse(cmd.id, 'EINVAL:invalid base64 data', cmd.quiet ?? 0);\n } else if (bytes.length > 0) {\n this._sendResponse(cmd.id, 'OK', cmd.quiet ?? 0);\n }\n }\n return result;\n }\n case KittyAction.TRANSMIT_DISPLAY:\n return this._handleTransmitDisplay(cmd, bytes, decodeError);\n case KittyAction.QUERY:\n return this._handleQuery(cmd, bytes, decodeError);\n case KittyAction.PLACEMENT:\n // a=p ignores any payload — image data was already transmitted\n return this._handlePlacement(cmd);\n default:\n // TODO: Implement remaining actions when needed:\n // - a=f (frame): animation frame operations\n // - a=a (animation): animation control\n // - a=c (compose): compose images\n if (cmd.id !== undefined) {\n this._sendResponse(cmd.id, 'EINVAL:unsupported action', cmd.quiet ?? 0);\n }\n return true;\n }\n }\n\n private _handlePlacement(cmd: IKittyCommand): boolean | Promise<boolean> {\n if (cmd.id === undefined) {\n return true;\n }\n const id = cmd.id;\n const image = this._kittyStorage.getImage(id);\n if (!image) {\n this._sendResponse(id, 'ENOENT:image not found', cmd.quiet ?? 0, cmd.placementId);\n return true;\n }\n const result = this._displayImage(image, cmd);\n return result.then(success => {\n this._sendResponse(id, success ? 'OK' : 'EINVAL:image rendering failed', cmd.quiet ?? 0, cmd.placementId);\n return true;\n });\n }\n\n private _handleTransmit(cmd: IKittyCommand, bytes: Uint8Array, decodeError: boolean): boolean {\n // TODO: Support file-based transmission modes (t=f, t=t, t=s)\n // Currently only supports direct transmission (t=d, the default).\n // - t=f (file): Payload is base64-encoded file path. Terminal reads image from that path.\n // - t=t (temp file): Payload is base64-encoded path in temp directory. Terminal reads, deletes.\n // - t=s: Payload is base64-encoded POSIX shm name. Terminal reads from shared memory.\n // These modes require filesystem/IPC access not available in browsers. For Node.js/Electron:\n // 1. Check cmd.transmission (t key) before treating bytes as image data\n // 2. For t=f/t/s: decode bytes as UTF-8 string (the path/name), then read file contents\n // 3. For t=d: treat bytes as image data (current behavior)\n // When implementing, also update _handleQuery to accept these transmission mediums.\n const transmission = cmd.transmission ?? 'd';\n if (transmission !== 'd') {\n if (cmd.id !== undefined) {\n this._sendResponse(cmd.id, 'EINVAL:unsupported transmission medium', cmd.quiet ?? 0);\n }\n return true;\n }\n\n if (decodeError || bytes.length === 0) return true;\n\n this._kittyStorage.storeImage(cmd.id, {\n data: new Blob([bytes as BlobPart]),\n width: cmd.width ?? 0,\n height: cmd.height ?? 0,\n format: (cmd.format ?? KittyFormat.RGBA) as 24 | 32 | 100,\n compression: cmd.compression ?? ''\n });\n return true;\n }\n\n private _handleTransmitDisplay(cmd: IKittyCommand, bytes: Uint8Array, decodeError: boolean): boolean | Promise<boolean> {\n if (decodeError) {\n if (cmd.id !== undefined) {\n this._sendResponse(cmd.id, 'EINVAL:invalid base64 data', cmd.quiet ?? 0);\n }\n return true;\n }\n\n this._handleTransmit(cmd, bytes, decodeError);\n\n const id = cmd.id ?? this._kittyStorage.lastImageId;\n const image = this._kittyStorage.getImage(id);\n if (image) {\n const result = this._displayImage(image, cmd);\n if (cmd.id !== undefined) {\n return result.then(success => {\n this._sendResponse(id, success ? 'OK' : 'EINVAL:image rendering failed', cmd.quiet ?? 0);\n return true;\n });\n }\n return result.then(() => true);\n }\n return true;\n }\n\n private _handleQuery(cmd: IKittyCommand, bytes: Uint8Array, decodeError: boolean): boolean {\n const id = cmd.id ?? 0;\n const quiet = cmd.quiet ?? 0;\n\n // Per spec: reject unsupported transmission mediums (only t=d is supported atm)\n // TODO: When filesystem support is added (Node.js/Electron), update this to accept\n // t=f (file), t=t (temp file), and t=s (shared memory) and respond OK for queries.\n const transmission = cmd.transmission ?? 'd';\n if (transmission !== 'd') {\n this._sendResponse(id, 'EINVAL:unsupported transmission medium', quiet);\n return true;\n }\n\n // Check decode error first (invalid base64)\n if (decodeError) {\n this._sendResponse(id, 'EINVAL:invalid base64 data', quiet);\n return true;\n }\n\n // Capability query (no payload) - just respond OK\n if (bytes.length === 0) {\n this._sendResponse(id, 'OK', quiet);\n return true;\n }\n\n const format = cmd.format ?? KittyFormat.RGBA;\n\n if (format === KittyFormat.PNG) {\n this._sendResponse(id, 'OK', quiet);\n } else {\n const width = cmd.width ?? 0;\n const height = cmd.height ?? 0;\n\n if (!width || !height) {\n this._sendResponse(id, 'EINVAL:width and height required for raw pixel data', quiet);\n return true;\n }\n\n const bytesPerPixel = format === KittyFormat.RGBA ? KittyPixelConstants.BYTES_PER_PIXEL_RGBA : KittyPixelConstants.BYTES_PER_PIXEL_RGB;\n const expectedBytes = width * height * bytesPerPixel;\n\n if (bytes.length < expectedBytes) {\n this._sendResponse(id, `EINVAL:insufficient pixel data`, quiet);\n return true;\n }\n\n this._sendResponse(id, 'OK', quiet);\n }\n return true;\n }\n\n private _handleDelete(cmd: IKittyCommand): boolean {\n // Per spec: default delete selector is 'a' (delete all visible placements)\n const selector = cmd.deleteSelector ?? 'a';\n\n // TODO: Distinguish lowercase (delete placements only) from uppercase\n // (delete placements + free stored image data). Currently both variants\n // free everything since we don't separate stored data from placements.\n switch (selector) {\n case 'a':\n case 'A':\n this._cleanupAllPending();\n this._kittyStorage.deleteAll();\n break;\n case 'i':\n case 'I':\n // TODO: When placement id tracking is implemented (see TODO in\n // KittyImageStorage), d=i with p=<pid> should delete only that\n // specific placement, while d=i without p should delete all\n // placements for the image.\n if (cmd.id !== undefined) {\n const pending = this._pendingTransmissions.get(cmd.id);\n if (pending) {\n pending.decoder.release();\n }\n this._removePendingEntry(cmd.id);\n this._kittyStorage.deleteById(cmd.id);\n }\n break;\n default:\n // Unsupported selectors (c, n, p, q, r, x, y, z, f) — ignore for now\n break;\n }\n return true;\n }\n\n private _sendResponse(id: number, message: string, quiet: number, placementId?: number): void {\n const isOk = message === 'OK';\n if (isOk && quiet >= 1) return;\n if (!isOk && quiet >= 2) return;\n\n const pPart = placementId ? `,p=${placementId}` : '';\n const response = `\\x1b_Gi=${id}${pPart};${message}\\x1b\\\\`;\n this._coreTerminal._core.coreService.triggerDataEvent(response);\n }\n\n // Image display\n\n private _displayImage(image: IKittyImageData, cmd: IKittyCommand): Promise<boolean> {\n return this._decodeAndDisplay(image, cmd)\n .then(() => true)\n .catch(() => false);\n }\n\n private async _decodeAndDisplay(image: IKittyImageData, cmd: IKittyCommand): Promise<void> {\n let bitmap: ImageBitmap | undefined = await this._createBitmap(image);\n\n try {\n const cropX = Math.max(0, cmd.x ?? 0);\n const cropY = Math.max(0, cmd.y ?? 0);\n const cropW = cmd.sourceWidth || (bitmap.width - cropX);\n const cropH = cmd.sourceHeight || (bitmap.height - cropY);\n\n const maxCropW = Math.max(0, bitmap.width - cropX);\n const maxCropH = Math.max(0, bitmap.height - cropY);\n const finalCropW = Math.max(0, Math.min(cropW, maxCropW));\n const finalCropH = Math.max(0, Math.min(cropH, maxCropH));\n\n if (finalCropW === 0 || finalCropH === 0) {\n throw new Error('invalid source rectangle');\n }\n\n if (cropX !== 0 || cropY !== 0 || finalCropW !== bitmap.width || finalCropH !== bitmap.height) {\n const cropped = await createImageBitmap(bitmap, cropX, cropY, finalCropW, finalCropH);\n bitmap.close();\n bitmap = cropped;\n }\n\n const cw = this._renderer.dimensions?.css.cell.width || CELL_SIZE_DEFAULT.width;\n const ch = this._renderer.dimensions?.css.cell.height || CELL_SIZE_DEFAULT.height;\n\n // Per spec: c/r default to image's natural cell dimensions.\n // If only one of c/r is specified, compute the other from image aspect ratio.\n let imgCols: number;\n let imgRows: number;\n if (cmd.columns !== undefined && cmd.rows !== undefined) {\n imgCols = cmd.columns;\n imgRows = cmd.rows;\n } else if (cmd.columns !== undefined) {\n imgCols = cmd.columns;\n imgRows = Math.max(1, Math.ceil((bitmap.height / bitmap.width) * (imgCols * cw) / ch));\n } else if (cmd.rows !== undefined) {\n imgRows = cmd.rows;\n imgCols = Math.max(1, Math.ceil((bitmap.width / bitmap.height) * (imgRows * ch) / cw));\n } else {\n imgCols = Math.ceil(bitmap.width / cw);\n imgRows = Math.ceil(bitmap.height / ch);\n }\n\n let w = bitmap.width;\n let h = bitmap.height;\n\n // Scale bitmap to fit placement rectangle when c/r are specified\n if (cmd.columns !== undefined || cmd.rows !== undefined) {\n w = Math.round(imgCols * cw);\n h = Math.round(imgRows * ch);\n }\n\n if (w * h > this._opts.pixelLimit) {\n throw new Error('image exceeds pixel limit');\n }\n\n // Save cursor position before addImage modifies it\n const buffer = this._coreTerminal._core.buffer;\n const savedX = buffer.x;\n const savedY = buffer.y;\n const savedYbase = buffer.ybase;\n\n // Determine layer based on z-index: negative = behind text, 0+ = on top.\n // When z<0 we always use the bottom layer even without allowTransparency —\n // the image will simply be hidden behind the opaque text background, which\n // is the correct behavior (client asked for \"behind text\").\n const wantsBottom = cmd.zIndex !== undefined && cmd.zIndex < 0;\n const layer: ImageLayer = wantsBottom ? 'bottom' : 'top';\n\n if (w !== bitmap.width || h !== bitmap.height) {\n const scaled = await createImageBitmap(bitmap, { resizeWidth: w, resizeHeight: h });\n bitmap.close();\n bitmap = scaled;\n }\n\n // Per spec: X/Y are pixel offsets within the first cell, so clamp to cell dimensions\n const xOffset = Math.min(Math.max(0, cmd.xOffset ?? 0), cw - 1);\n const yOffset = Math.min(Math.max(0, cmd.yOffset ?? 0), ch - 1);\n if (xOffset !== 0 || yOffset !== 0) {\n // Per spec: X/Y is not added to c/r area. When c/r are explicit, the\n // total placement area remains c*cw × r*ch pixels and the offset image\n // is clipped to fit. When c/r are unset, the padded canvas determines\n // the natural cell dimensions.\n const canvasW = (cmd.columns !== undefined) ? Math.round(imgCols * cw) : bitmap.width + xOffset;\n const canvasH = (cmd.rows !== undefined) ? Math.round(imgRows * ch) : bitmap.height + yOffset;\n const offsetCanvas = ImageRenderer.createCanvas(window.document, canvasW, canvasH);\n const offsetCtx = offsetCanvas.getContext('2d');\n if (!offsetCtx) {\n throw new Error('Failed to create offset canvas context');\n }\n offsetCtx.drawImage(bitmap, xOffset, yOffset);\n\n const offsetBitmap = await createImageBitmap(offsetCanvas);\n offsetCanvas.width = offsetCanvas.height = 0;\n bitmap.close();\n bitmap = offsetBitmap;\n w = bitmap.width;\n h = bitmap.height;\n if (w * h > this._opts.pixelLimit) {\n throw new Error('image exceeds pixel limit');\n }\n if (cmd.columns === undefined) {\n imgCols = Math.ceil(bitmap.width / cw);\n }\n if (cmd.rows === undefined) {\n imgRows = Math.ceil(bitmap.height / ch);\n }\n }\n\n const zIndex = cmd.zIndex ?? 0;\n this._kittyStorage.addImage(image.id, bitmap, true, layer, zIndex);\n bitmap = undefined; // ownership transferred to storage\n\n // Kitty cursor movement\n // Per spec: cursor placed at first column after last image column,\n // on the last row of the image. C=1 means don't move cursor.\n if (cmd.cursorMovement === 1) {\n // C=1: restore cursor to position before image was placed\n const scrolled = buffer.ybase - savedYbase;\n buffer.x = savedX;\n // Can't restore cursor to scrollback?\n buffer.y = Math.max(savedY - scrolled, 0);\n } else {\n // Default (C=0): advance cursor horizontally past the image\n // addImage already positioned cursor on the last row via lineFeeds\n buffer.x = Math.min(savedX + imgCols, this._coreTerminal.cols);\n }\n } catch (e) {\n bitmap?.close();\n throw e;\n }\n }\n\n // Create ImageBitmap from already-decoded image data.\n private async _createBitmap(image: IKittyImageData): Promise<ImageBitmap> {\n let bytes: Uint8Array = new Uint8Array(await image.data.arrayBuffer());\n\n if (image.compression === KittyCompression.ZLIB) {\n bytes = await this._decompressZlib(bytes);\n }\n\n if (image.format === KittyFormat.PNG) {\n const blob = new Blob([bytes as BlobPart], { type: 'image/png' });\n if (!window.createImageBitmap) {\n const url = URL.createObjectURL(blob);\n const img = new Image();\n return new Promise<ImageBitmap>((resolve, reject) => {\n img.addEventListener('load', () => {\n URL.revokeObjectURL(url);\n const canvas = ImageRenderer.createCanvas(window.document, img.width, img.height);\n canvas.getContext('2d')?.drawImage(img, 0, 0);\n createImageBitmap(canvas).then(resolve).catch(reject);\n });\n img.addEventListener('error', () => {\n URL.revokeObjectURL(url);\n reject(new Error('Failed to load image'));\n });\n img.src = url;\n });\n }\n return createImageBitmap(blob);\n }\n\n // Raw pixel data\n const width = image.width;\n const height = image.height;\n\n if (!width || !height) {\n throw new Error('Width and height required for raw pixel data');\n }\n\n const bytesPerPixel = image.format === KittyFormat.RGBA ? KittyPixelConstants.BYTES_PER_PIXEL_RGBA : KittyPixelConstants.BYTES_PER_PIXEL_RGB;\n const expectedBytes = width * height * bytesPerPixel;\n\n if (bytes.length < expectedBytes) {\n throw new Error('Insufficient pixel data');\n }\n\n const pixelCount = width * height;\n\n if (image.format === KittyFormat.RGBA) {\n // RGBA: use bytes directly — no copy needed\n return createImageBitmap(new ImageData(new Uint8ClampedArray(bytes.buffer as ArrayBuffer, bytes.byteOffset, pixelCount * KittyPixelConstants.BYTES_PER_PIXEL_RGBA), width, height));\n }\n\n // RGB→RGBA: interleave alpha using uint32 block processing (4 pixels per iteration).\n // 3 uint32 reads + 4 uint32 writes per 4 pixels vs 28 byte reads/writes — ~6x faster.\n // Assumes little-endian (all modern browsers/Node.js).\n const data = new Uint8ClampedArray(pixelCount * KittyPixelConstants.BYTES_PER_PIXEL_RGBA);\n const src32 = new Uint32Array(bytes.buffer, bytes.byteOffset, Math.floor(bytes.byteLength / 4));\n const dst32 = new Uint32Array(data.buffer);\n const alignedPixels = pixelCount & ~3; // round down to multiple of 4\n\n let srcOffset = 0;\n let dstOffset = 0;\n for (let i = 0; i < alignedPixels; i += 4) {\n const b0 = src32[srcOffset++];\n const b1 = src32[srcOffset++];\n const b2 = src32[srcOffset++];\n // Little-endian: pixel bytes are [R,G,B] → uint32 ABGR layout\n dst32[dstOffset++] = 0xFF000000 | b0;\n dst32[dstOffset++] = 0xFF000000 | (b0 >>> 24) | (b1 << 8);\n dst32[dstOffset++] = 0xFF000000 | (b1 >>> 16) | (b2 << 16);\n dst32[dstOffset++] = 0xFF000000 | (b2 >>> 8);\n }\n\n // Handle remaining 1–3 pixels\n let srcByte = alignedPixels * KittyPixelConstants.BYTES_PER_PIXEL_RGB;\n let dstByte = alignedPixels * KittyPixelConstants.BYTES_PER_PIXEL_RGBA;\n for (let i = alignedPixels; i < pixelCount; i++) {\n data[dstByte] = bytes[srcByte];\n data[dstByte + 1] = bytes[srcByte + 1];\n data[dstByte + 2] = bytes[srcByte + 2];\n data[dstByte + 3] = KittyPixelConstants.ALPHA_OPAQUE;\n srcByte += KittyPixelConstants.BYTES_PER_PIXEL_RGB;\n dstByte += KittyPixelConstants.BYTES_PER_PIXEL_RGBA;\n }\n\n return createImageBitmap(new ImageData(data, width, height));\n }\n\n private async _decompressZlib(compressed: Uint8Array): Promise<Uint8Array> {\n try {\n return await this._decompress(compressed, 'deflate');\n } catch {\n return await this._decompress(compressed, 'deflate-raw');\n }\n }\n\n private async _decompress(compressed: Uint8Array, format: 'deflate' | 'deflate-raw'): Promise<Uint8Array> {\n const ds = new DecompressionStream(format);\n const writer = ds.writable.getWriter();\n writer.write(compressed as BufferSource);\n writer.close();\n\n const chunks: Uint8Array[] = [];\n const reader = ds.readable.getReader();\n\n while (true) {\n const { done, value } = await reader.read();\n if (done) break;\n chunks.push(value);\n }\n\n const totalLength = chunks.reduce((sum, chunk) => sum + chunk.length, 0);\n const result = new Uint8Array(totalLength);\n let offset = 0;\n for (const chunk of chunks) {\n result.set(chunk, offset);\n offset += chunk.length;\n }\n return result;\n }\n\n public get images(): ReadonlyMap<number, IKittyImageData> {\n return this._kittyStorage.images;\n }\n\n public get _kittyIdToStorageId(): ReadonlyMap<number, number> {\n return this._kittyStorage.kittyIdToStorageId;\n }\n\n public get pendingTransmissions(): ReadonlyMap<number, IPendingTransmission> {\n return this._pendingTransmissions;\n }\n}\n","/**\n * Copyright (c) 2026 The xterm.js authors. All rights reserved.\n * @license MIT\n *\n * Kitty graphics protocol types, constants, and parsing utilities.\n */\n\nimport type Base64Decoder from 'xterm-wasm-parts/lib/base64/Base64Decoder.wasm';\n\n// Kitty graphics protocol action types.\n// See: https://sw.kovidgoyal.net/kitty/graphics-protocol/#control-data-reference under key 'a'.\nexport const enum KittyAction {\n TRANSMIT = 't',\n TRANSMIT_DISPLAY = 'T',\n QUERY = 'q',\n PLACEMENT = 'p',\n DELETE = 'd'\n}\n\n// Kitty graphics protocol format types.\n// See: https://sw.kovidgoyal.net/kitty/graphics-protocol/#control-data-reference\nexport const enum KittyFormat {\n RGB = 24,\n RGBA = 32,\n PNG = 100\n}\n\n// Kitty graphics protocol compression types.\n// See: https://sw.kovidgoyal.net/kitty/graphics-protocol/#control-data-reference under key 'o'.\nexport const enum KittyCompression {\n NONE = '',\n ZLIB = 'z'\n}\n\n// Kitty graphics protocol control data keys.\n// See: https://sw.kovidgoyal.net/kitty/graphics-protocol/#control-data-reference\nexport const enum KittyKey {\n // Action to perform (t=transmit, T=transmit+display, q=query, p=placement, d=delete)\n ACTION = 'a',\n // Image format (24=RGB, 32=RGBA, 100=PNG)\n FORMAT = 'f',\n // Image ID for referencing stored images\n ID = 'i',\n // Image number (alternative to ID, terminal assigns ID)\n IMAGE_NUMBER = 'I',\n // Source image width in pixels\n WIDTH = 's',\n // Source image height in pixels\n HEIGHT = 'v',\n // The left edge (in pixels) of the image area to display\n X_OFFSET = 'x',\n // The top edge (in pixels) of the image area to display\n Y_OFFSET = 'y',\n // Width (in pixels) of the source rectangle to display\n SOURCE_WIDTH = 'w',\n // Height (in pixels) of the source rectangle to display\n SOURCE_HEIGHT = 'h',\n // Horizontal offset (in pixels) within the first cell\n X_PLACEMENT_OFFSET = 'X',\n // Vertical offset (in pixels) within the first cell\n Y_PLACEMENT_OFFSET = 'Y',\n // Number of terminal columns to display the image over\n COLUMNS = 'c',\n // Number of terminal rows to display the image over\n ROWS = 'r',\n // More data flag (1=more chunks coming, 0=final chunk)\n MORE = 'm',\n // Compression type (z=zlib). This is essential for chunking larger images.\n COMPRESSION = 'o',\n // Quiet mode (1=suppress OK responses, 2=suppress error responses)\n QUIET = 'q',\n // Cursor movement policy (0=move cursor after image, 1=don't move cursor)\n CURSOR_MOVEMENT = 'C',\n // Z-index for image layering (negative = behind text, 0+ = on top)\n Z_INDEX = 'z',\n // Transmission medium (d=direct, f=file, t=temp file, s=shared memory)\n TRANSMISSION = 't',\n // Delete selector (a/A=all, i/I=by id, c/C=at cursor, etc.) — only used when a=d\n DELETE_SELECTOR = 'd',\n // Placement ID for targeting specific placements\n PLACEMENT_ID = 'p'\n}\n\n// Pixel format constants\nexport const enum KittyPixelConstants {\n BYTES_PER_PIXEL_RGB = 3,\n BYTES_PER_PIXEL_RGBA = 4,\n ALPHA_OPAQUE = 255\n}\n\n// Parsed Kitty graphics command.\nexport interface IKittyCommand {\n action?: string;\n format?: number;\n id?: number;\n imageNumber?: number;\n width?: number;\n height?: number;\n x?: number;\n y?: number;\n sourceWidth?: number;\n sourceHeight?: number;\n xOffset?: number;\n yOffset?: number;\n columns?: number;\n rows?: number;\n more?: number;\n quiet?: number;\n cursorMovement?: number;\n zIndex?: number;\n transmission?: string;\n deleteSelector?: string;\n placementId?: number;\n compression?: string;\n payload?: string;\n}\n\n// Pending chunked transmission state.\n// Stores metadata from the first chunk while accumulating decoded payload data.\nexport interface IPendingTransmission {\n // The parsed command from the first chunk (contains action, format, dimensions, etc.)\n cmd: IKittyCommand;\n // Decoder used across chunked payloads\n decoder: Base64Decoder;\n // Total encoded (base64) bytes received across all chunks - for size limit enforcement\n totalEncodedSize: number;\n // Whether any chunk has failed to decode\n decodeError: boolean;\n}\n\n// Stored Kitty image data.\nexport interface IKittyImageData {\n id: number;\n // Decoded image data stored as Blob (off JS heap) to avoid 2GB heap limit\n data: Blob;\n width: number;\n height: number;\n format: 24 | 32 | 100;\n compression?: string;\n}\n\n// Parses Kitty graphics control data into a command object.\nexport function parseKittyCommand(data: string): IKittyCommand {\n const cmd: IKittyCommand = {};\n const parts = data.split(',');\n\n for (const part of parts) {\n const eqIdx = part.indexOf('=');\n if (eqIdx === -1) continue;\n\n const key = part.substring(0, eqIdx);\n const value = part.substring(eqIdx + 1);\n\n // Handle string keys first\n if (key === KittyKey.ACTION) {\n cmd.action = value;\n continue;\n }\n if (key === KittyKey.COMPRESSION) {\n cmd.compression = value;\n continue;\n }\n if (key === KittyKey.TRANSMISSION) {\n cmd.transmission = value;\n continue;\n }\n if (key === KittyKey.DELETE_SELECTOR) {\n cmd.deleteSelector = value;\n continue;\n }\n const numValue = parseInt(value, 10);\n switch (key) {\n case KittyKey.FORMAT: cmd.format = numValue; break;\n case KittyKey.ID: cmd.id = numValue; break;\n case KittyKey.IMAGE_NUMBER: cmd.imageNumber = numValue; break;\n case KittyKey.WIDTH: cmd.width = numValue; break;\n case KittyKey.HEIGHT: cmd.height = numValue; break;\n case KittyKey.X_OFFSET: cmd.x = numValue; break;\n case KittyKey.Y_OFFSET: cmd.y = numValue; break;\n case KittyKey.SOURCE_WIDTH: cmd.sourceWidth = numValue; break;\n case KittyKey.SOURCE_HEIGHT: cmd.sourceHeight = numValue; break;\n case KittyKey.X_PLACEMENT_OFFSET: cmd.xOffset = numValue; break;\n case KittyKey.Y_PLACEMENT_OFFSET: cmd.yOffset = numValue; break;\n case KittyKey.COLUMNS: cmd.columns = numValue; break;\n case KittyKey.ROWS: cmd.rows = numValue; break;\n case KittyKey.MORE: cmd.more = numValue; break;\n case KittyKey.QUIET: cmd.quiet = numValue; break;\n case KittyKey.CURSOR_MOVEMENT: cmd.cursorMovement = numValue; break;\n case KittyKey.Z_INDEX: cmd.zIndex = numValue; break;\n case KittyKey.PLACEMENT_ID: cmd.placementId = numValue; break;\n }\n }\n\n return cmd;\n}\n","/**\n * Copyright (c) 2026 The xterm.js authors. All rights reserved.\n * @license MIT\n */\n\nimport { IDisposable } from '@xterm/xterm';\nimport { ImageStorage } from '../ImageStorage';\nimport { ImageLayer, IAddImageOpts } from '../Types';\nimport { IKittyImageData } from './KittyGraphicsTypes';\n\n// Kitty-specific image storage controller.\n//\n// Wraps shared ImageStorage with kitty protocol semantics:\n// - tracks transmitted image payloads by kitty image id\n// - tracks kitty image id -> shared ImageStorage id mapping for displayed images\n// - mirrors shared-storage evictions into kitty maps\n// - applies protocol-level undisplayed-image eviction policy\nexport class KittyImageStorage implements IDisposable {\n private static readonly _maxStoredImages = 256;\n\n private _nextImageId = 1;\n private readonly _images: Map<number, IKittyImageData> = new Map();\n // TODO: Support multiple placements per image. The kitty spec identifies\n // placements by an (image id, placement id) pair — same i + different p\n // values should coexist, and same i + same p should replace the prior\n // placement. Currently we track only one storage entry per kitty image id,\n // so multiple placements of the same image overwrite each other. Fixing\n // this requires changing these maps to Map<number, Map<number, number>>\n // (kittyId → placementId → storageId) and updating addImage/deleteById\n // accordingly. The underlying shared ImageStorage would also need to\n // support multiple entries per logical image.\n private readonly _kittyIdToStorageId: Map<number, number> = new Map();\n private readonly _storageIdToKittyId: Map<number, number> = new Map();\n\n private readonly _previousOnImageDeleted: ((storageId: number) => void) | undefined;\n private readonly _wrappedOnImageDeleted: (storageId: number) => void;\n private readonly _handleStorageImageDeleted = (storageId: number): void => {\n const kittyId = this._storageIdToKittyId.get(storageId);\n if (kittyId !== undefined) {\n this._kittyIdToStorageId.delete(kittyId);\n this._storageIdToKittyId.delete(storageId);\n this._images.delete(kittyId);\n }\n };\n private _addImageOpts: IAddImageOpts = { scrolling: true, layer: 'top', zIndex: 0, cursorPos: 'iip' };\n\n constructor(\n private readonly _storage: ImageStorage\n ) {\n this._previousOnImageDeleted = this._storage.onImageDeleted;\n this._wrappedOnImageDeleted = (storageId: number) => {\n this._previousOnImageDeleted?.(storageId);\n this._handleStorageImageDeleted(storageId);\n };\n this._storage.onImageDeleted = this._wrappedOnImageDeleted;\n }\n\n public reset(): void {\n this._nextImageId = 1;\n this._images.clear();\n this._kittyIdToStorageId.clear();\n this._storageIdToKittyId.clear();\n }\n\n public dispose(): void {\n this.reset();\n if (this._storage.onImageDeleted === this._wrappedOnImageDeleted) {\n this._storage.onImageDeleted = this._previousOnImageDeleted;\n }\n }\n\n public storeImage(id: number | undefined, imageData: Omit<IKittyImageData, 'id'>): number {\n const imageId = id ?? this._nextImageId++;\n\n const oldStorageId = this._kittyIdToStorageId.get(imageId);\n if (oldStorageId !== undefined) {\n this._storage.deleteImage(oldStorageId);\n this._kittyIdToStorageId.delete(imageId);\n this._storageIdToKittyId.delete(oldStorageId);\n }\n\n if (!this._images.has(imageId) && this._images.size >= KittyImageStorage._maxStoredImages) {\n this._evictUndisplayedImages();\n }\n\n this._images.set(imageId, {\n ...imageData,\n id: imageId\n });\n return imageId;\n }\n\n public addImage(kittyId: number, image: HTMLCanvasElement | ImageBitmap, scrolling: boolean, layer: ImageLayer, zIndex: number): void {\n // Clean up stale reverse-mapping from a previous placement of the same\n // kitty image. The old shared-storage entry is kept (it may still be\n // visible on screen) but its reverse mapping is removed so that eviction\n // of the old entry won't incorrectly delete the kitty image data.\n const oldStorageId = this._kittyIdToStorageId.get(kittyId);\n if (oldStorageId !== undefined) {\n this._storageIdToKittyId.delete(oldStorageId);\n }\n this._addImageOpts.scrolling = scrolling;\n this._addImageOpts.layer = layer;\n this._addImageOpts.zIndex = zIndex;\n const storageId = this._storage.addImage(image, this._addImageOpts);\n this._kittyIdToStorageId.set(kittyId, storageId);\n this._storageIdToKittyId.set(storageId, kittyId);\n }\n\n public getImage(kittyId: number): IKittyImageData | undefined {\n return this._images.get(kittyId);\n }\n\n public deleteById(kittyId: number): void {\n this._images.delete(kittyId);\n const storageId = this._kittyIdToStorageId.get(kittyId);\n if (storageId !== undefined) {\n this._storage.deleteImage(storageId);\n this._kittyIdToStorageId.delete(kittyId);\n this._storageIdToKittyId.delete(storageId);\n }\n }\n\n public deleteAll(): void {\n this._images.clear();\n for (const storageId of this._kittyIdToStorageId.values()) {\n this._storage.deleteImage(storageId);\n }\n this._kittyIdToStorageId.clear();\n this._storageIdToKittyId.clear();\n }\n\n public get images(): ReadonlyMap<number, IKittyImageData> {\n return this._images;\n }\n\n public get kittyIdToStorageId(): ReadonlyMap<number, number> {\n return this._kittyIdToStorageId;\n }\n\n public get lastImageId(): number {\n return this._nextImageId - 1;\n }\n\n private _evictUndisplayedImages(): void {\n for (const [kittyId] of this._images) {\n if (this._images.size <= KittyImageStorage._maxStoredImages / 2) {\n break;\n }\n if (!this._kittyIdToStorageId.has(kittyId)) {\n this._images.delete(kittyId);\n }\n }\n }\n}\n","\"use strict\";\nObject.defineProperty(exports, \"__esModule\", { value: true });\n/**\n * Copyright (c) 2023, 2026 The xterm.js authors. All rights reserved.\n * @license MIT\n */\nconst inwasm_runtime_1 = require(\"inwasm-runtime\");\n/**\n * wasm base64 decoder.\n */\nconst wasmDecode = (0, inwasm_runtime_1.InWasm)(/*inwasm#828e69684093b2c6:rdef-start:\"decode\"*/{s:1,t:0,d:'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'}/*inwasm#828e69684093b2c6:rdef-end:\"decode\"*/);\n// SIMD version (speedup ~1.4x, not covered by tests yet)\n/*\nconst wasmDecode = InWasm({\n name: 'decode',\n type: OutputType.INSTANCE,\n mode: OutputMode.SYNC,\n srctype: 'Clang-C',\n imports: {\n env: { memory: new WebAssembly.Memory({ initial: 1 }) }\n },\n exports: {\n dec: () => 0,\n end: () => 0\n },\n compile: {\n switches: ['-msimd128', '-Wl,-z,stack-size=0', '-Wl,--stack-first']\n },\n code: `\n #include <wasm_simd128.h>\n typedef struct {\n unsigned int wp;\n unsigned int sp;\n unsigned int dp;\n unsigned int e_size;\n unsigned int dummy[4];\n unsigned char data[0];\n } State;\n\n unsigned int *D0 = (unsigned int *) ${P32.D0 * 4};\n unsigned int *D1 = (unsigned int *) ${P32.D1 * 4};\n unsigned int *D2 = (unsigned int *) ${P32.D2 * 4};\n unsigned int *D3 = (unsigned int *) ${P32.D3 * 4};\n State *state = (State *) ${P32.STATE * 4};\n\n #define packed_byte(x) wasm_i8x16_splat((char) x)\n #define packed_dword(x) wasm_i32x4_splat(x)\n #define masked(x, mask) wasm_v128_and(x, wasm_i32x4_splat(mask))\n\n __attribute__((noinline)) int dec() {\n unsigned int nsp = (state->wp - 1) & ~3;\n unsigned char *src = state->data + state->sp;\n unsigned char *end = state->data + nsp;\n unsigned char *dst = state->data + state->dp;\n unsigned int error = 0;\n\n v128_t err = wasm_i8x16_splat(0);\n unsigned char *end16 = state->data + (nsp & ~15);\n while (src < end16) {\n v128_t data = wasm_v128_load((v128_t *) src);\n\n // wasm-simd rewrite of http://0x80.pl/notesen/2016-01-17-sse-base64-decoding.html#vector-lookup-pshufb\n const v128_t higher_nibble = wasm_u32x4_shr(data, 4) & packed_byte(0x0f);\n const char linv = 1;\n const char hinv = 0;\n\n const v128_t lower_bound_LUT = wasm_i8x16_const(\n // order: 0 1 2 3 4 5 6 7 8 9 a b c d e f\n linv, linv, 0x2b, 0x30,\n 0x41, 0x50, 0x61, 0x70,\n linv, linv, linv, linv,\n linv, linv, linv, linv\n );\n const v128_t upper_bound_LUT = wasm_i8x16_const(\n // order: 0 1 2 3 4 5 6 7 8 9 a b c d e f\n hinv, hinv, 0x2b, 0x39,\n 0x4f, 0x5a, 0x6f, 0x7a,\n hinv, hinv, hinv, hinv,\n hinv, hinv, hinv, hinv\n );\n // the difference between the shift and lower bound\n const v128_t shift_LUT = wasm_i8x16_const(\n // order: 0 1 2 3 4 5 6 7 8 9 a b c d e f\n 0x00, 0x00, 0x3e - 0x2b, 0x34 - 0x30,\n 0x00 - 0x41, 0x0f - 0x50, 0x1a - 0x61, 0x29 - 0x70,\n 0x00, 0x00, 0x00, 0x00,\n 0x00, 0x00, 0x00, 0x00\n );\n\n const v128_t upper_bound = wasm_i8x16_swizzle(upper_bound_LUT, higher_nibble);\n const v128_t lower_bound = wasm_i8x16_swizzle(lower_bound_LUT, higher_nibble);\n\n const v128_t below = wasm_i8x16_lt(data, lower_bound);\n const v128_t above = wasm_i8x16_gt(data, upper_bound);\n const v128_t eq_2f = wasm_i8x16_eq(data, packed_byte(0x2f));\n\n // in_range = not (below or above) or eq_2f\n // outside = not in_range = below or above and not eq_2f (from deMorgan law)\n const v128_t outside = wasm_v128_andnot(eq_2f, above | below);\n err = wasm_v128_or(err, outside);\n\n const v128_t shift = wasm_i8x16_swizzle(shift_LUT, higher_nibble);\n const v128_t t0 = wasm_i8x16_add(data, shift);\n v128_t v = wasm_i8x16_add(t0, wasm_v128_and(eq_2f, packed_byte(-3)));\n\n // pack bytes\n const v128_t ca = masked(v, 0x003f003f);\n const v128_t db = masked(v, 0x3f003f00);\n const v128_t t00 = wasm_v128_or(wasm_u32x4_shr(db, 8), wasm_i32x4_shl(ca, 6));\n v128_t res = wasm_v128_or(wasm_u32x4_shr(t00, 16), wasm_i32x4_shl(t00, 12));\n res = wasm_i8x16_swizzle(res, wasm_i8x16_const(2, 1, 0, 6, 5, 4, 10, 9, 8, 14, 13, 12, 16, 16, 16, 16));\n\n wasm_v128_store((v128_t *) dst, res);\n dst += 12;\n src += 16;\n }\n //if (wasm_i8x16_bitmask(err) != 0) return -1;\n if (wasm_v128_any_true(err)) return -1;\n\n // operate on 4-byte blocks\n while (src < end) {\n error |= *((unsigned int *) dst) = D0[src[0]] | D1[src[1]] | D2[src[2]] | D3[src[3]];\n dst += 3;\n src += 4;\n }\n if (error >> 24) return -1;\n state->sp = nsp;\n state->dp = dst - state->data;\n return 0;\n }\n\n int end() {\n int rem = state->wp - state->sp;\n if (rem > 4 && dec()) return -1;\n rem = state->wp - state->sp;\n if (rem < 2) return -1;\n\n unsigned char *src = state->data + state->sp;\n if (rem == 4) {\n if (src[3] == 61) rem--;\n if (src[2] == 61) rem--;\n }\n unsigned int accu = D0[src[0]] | D1[src[1]];\n int dp = 1;\n if (rem > 2) {\n accu |= D2[src[2]];\n dp++;\n if (rem == 4) {\n accu |= D3[src[3]];\n dp++;\n }\n }\n if (accu >> 24) return -1;\n *((unsigned int *) (state->data + state->dp)) = accu;\n state->dp += dp;\n return 0;\n }\n `\n});\n*/\n// base64 map\nconst MAP = new Uint8Array('ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/'\n .split('')\n .map(el => el.charCodeAt(0)));\n// init decoder maps in LE order\nconst D = new Uint32Array(1024);\nD.fill(0xFF000000);\nfor (let i = 0; i < MAP.length; ++i)\n D[MAP[i]] = i << 2;\nfor (let i = 0; i < MAP.length; ++i)\n D[256 + MAP[i]] = i >> 4 | ((i << 4) & 0xFF) << 8;\nfor (let i = 0; i < MAP.length; ++i)\n D[512 + MAP[i]] = (i >> 2) << 8 | ((i << 6) & 0xFF) << 16;\nfor (let i = 0; i < MAP.length; ++i)\n D[768 + MAP[i]] = i << 16;\nconst EMPTY = new Uint8Array(0);\n/**\n * base64 stream decoder.\n *\n * Features / assumptions:\n * - lazy chunkwise decoding\n * - errors out on any non base64 chars (no support for NL formatted base64)\n * - decodes in wasm\n * - inplace decoding to save memory\n * - supports a keepSize for lazy memory release\n */\nclass Base64Decoder {\n /**\n * @param keepSize Keep the wasm instance below this limit when calling `release()`.\n * @param maxBytes Max allowed bytes to allocate.\n * @param initialBytes Initial bytes to allocate.\n */\n constructor(keepSize, maxBytes, initialBytes) {\n this._inst = null;\n this._ended = true;\n this._bytes = 0;\n this.keepSize = keepSize !== null && keepSize !== void 0 ? keepSize : 1048576 /* Bytes.KEEP */;\n this.maxBytes = maxBytes !== null && maxBytes !== void 0 ? maxBytes : 4294901760 /* Bytes.MAX */;\n this._bytes = initialBytes !== null && initialBytes !== void 0 ? initialBytes : 32768 /* Bytes.INITIAL */;\n if (this._bytes > this.maxBytes || this.maxBytes > 4294901760 /* Bytes.MAX */) {\n throw new Error('invalid byte settings');\n }\n }\n /**\n * Currently decoded bytes (borrowed).\n * Must be accessed before calling `release` or `init`.\n */\n get data8() {\n return this._inst ? this._d.subarray(0, this._m32[1282 /* P32.STATE_DP */]) : EMPTY;\n }\n /**\n * Release memory conditionally based on `keepSize`.\n * If memory gets released, also the wasm instance will be freed and recreated on next `init`,\n * otherwise the instance will be reused.\n */\n release() {\n if (!this._inst)\n return;\n if (this._bytes > this.keepSize) {\n this._inst = this._m32 = this._d = this._mem = null;\n }\n else {\n this._m32[1280 /* P32.STATE_WP */] = 0;\n this._m32[1281 /* P32.STATE_SP */] = 0;\n this._m32[1282 /* P32.STATE_DP */] = 0;\n }\n }\n /**\n * Initializes the decoder for new base64 data.\n * Must be called before doing any decoding attempts.\n * The method will either spawn a new wasm instance or grow\n * the needed memory of an existing instance.\n * @param maxBytes Max allowed bytes to allocate (overwrites ctor value).\n * @param initialBytes Initial bytes to allocate (overwrites ctor value).\n */\n init(maxBytes, initialBytes) {\n this.maxBytes = maxBytes !== null && maxBytes !== void 0 ? maxBytes : this.maxBytes;\n this._bytes = initialBytes !== null && initialBytes !== void 0 ? initialBytes : Math.min(this._bytes, this.maxBytes);\n if (this._bytes > this.maxBytes || this.maxBytes > 4294901760 /* Bytes.MAX */) {\n throw Error('invalid byte settings');\n }\n let m = this._m32;\n const bytes = this._bytes + 5152 /* Bytes._DATA_OFFSET */;\n if (!this._inst) {\n this._mem = new WebAssembly.Memory({ initial: Math.ceil(bytes / 65536) });\n this._inst = wasmDecode({ env: { memory: this._mem } });\n m = new Uint32Array(this._mem.buffer, 0);\n m.set(D, 256 /* P32.D0 */);\n this._d = new Uint8Array(this._mem.buffer, 5152 /* Bytes._DATA_OFFSET */);\n }\n else if (this._mem.buffer.byteLength < bytes) {\n this._mem.grow(Math.ceil((bytes - this._mem.buffer.byteLength) / 65536));\n m = new Uint32Array(this._mem.buffer, 0);\n this._d = new Uint8Array(this._mem.buffer, 5152 /* Bytes._DATA_OFFSET */);\n }\n m[1280 /* P32.STATE_WP */] = 0;\n m[1281 /* P32.STATE_SP */] = 0;\n m[1282 /* P32.STATE_DP */] = 0;\n this._m32 = m;\n this._ended = false;\n }\n /**\n * Realloc memory. Realloc only happens, if the requested\n * size doesn't fit in the current memory.\n * The new size will be capped by `maxBytes`.\n * @param requested Bytes to be stored.\n */\n _realloc(requested) {\n const needed = this._m32[1280 /* P32.STATE_WP */] + requested;\n if (this._bytes < needed) {\n if (needed > this.maxBytes) {\n return -3 /* DecodeStatus.SIZE_EXCEEDED */;\n }\n let newSize = this._bytes;\n while ((newSize *= 2) < needed) { }\n newSize = Math.min(newSize, this.maxBytes);\n if (newSize < needed) {\n return -3 /* DecodeStatus.SIZE_EXCEEDED */;\n }\n if (newSize + 5152 /* Bytes._DATA_OFFSET */ > this._mem.buffer.byteLength) {\n const addPages = Math.ceil((newSize + 5152 /* Bytes._DATA_OFFSET */ - this._mem.buffer.byteLength) / 65536);\n this._mem.grow(addPages);\n this._m32 = new Uint32Array(this._mem.buffer, 0);\n this._d = new Uint8Array(this._mem.buffer, 5152 /* Bytes._DATA_OFFSET */);\n }\n this._bytes = newSize;\n }\n return 0 /* DecodeStatus.OK */;\n }\n /**\n * Put bytes in `data` into the decoder.\n * Additionally decodes the payload, if it reached 2^17 bytes.\n * The return value indicates the type of issue.\n * @param data Bytes to be loaded.\n */\n put(data) {\n if (!this._inst || this._ended) {\n return -2 /* DecodeStatus.NOT_INITIALIZED */;\n }\n if (this._realloc(data.length)) {\n return -3 /* DecodeStatus.SIZE_EXCEEDED */;\n }\n const m = this._m32;\n this._d.set(data, m[1280 /* P32.STATE_WP */]);\n m[1280 /* P32.STATE_WP */] += data.length;\n // max chunk in input handler is 2^17, try to run in \"tandem mode\"\n return m[1280 /* P32.STATE_WP */] - m[1281 /* P32.STATE_SP */] >= 131072\n ? this._inst.exports.dec()\n : 0 /* DecodeStatus.OK */;\n }\n /**\n * End the current decoding.\n * Also decodes leftover payload from previous put calls.\n */\n end() {\n this._ended = true;\n return this._inst\n ? this._inst.exports.end()\n : -2 /* DecodeStatus.NOT_INITIALIZED */;\n }\n /**\n * Bytes loaded into the decoder.\n */\n get loadedBytes() {\n return this._inst\n ? this._m32[1280 /* P32.STATE_WP */]\n : 0;\n }\n /**\n * Free bytes to feed to the decoder.\n */\n get freeBytes() {\n return this._inst\n ? this.maxBytes - this._m32[1280 /* P32.STATE_WP */]\n : 0;\n }\n}\nexports.default = Base64Decoder;\n//# sourceMappingURL=Base64Decoder.wasm.js.map","\"use strict\";\nObject.defineProperty(exports, \"__esModule\", { value: true });\n/**\n * Copyright (c) 2023 The xterm.js authors. All rights reserved.\n * @license MIT\n */\nconst inwasm_runtime_1 = require(\"inwasm-runtime\");\nconst wasmQoiDecode = (0, inwasm_runtime_1.InWasm)(/*inwasm#459f9e1bfb80b1a8:rdef-start:\"qoi_decode\"*/{s:1,t:0,d:'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'}/*inwasm#459f9e1bfb80b1a8:rdef-end:\"qoi_decode\"*/);\nclass QoiDecoder {\n constructor(keepSize) {\n this.keepSize = keepSize;\n this.width = 0;\n this.height = 0;\n }\n decode(d) {\n this.width = d[4] << 24 | d[5] << 16 | d[6] << 8 | d[7];\n this.height = d[8] << 24 | d[9] << 16 | d[10] << 8 | d[11];\n const pixels = this.width * this.height;\n const ib = pixels * 4;\n const dl = d.length;\n /**\n * byte/offset calculation:\n * To save some memory we dont reserve full memory for decoded + encoded,\n * but place encoded at the end of decoded plus 50% security distance\n * to avoid reads before writes positions:\n *\n * encoded < decoded (good compression)\n * enc ####################\n * dec #######################################\n * ^ ^\n * DST_P CHUNK_P\n *\n * encoded > decoded (degenerated compression, should not happen)\n * enc ##############################\n * dec ####################\n * ^ ^\n * DST_P CHUNK_P\n *\n * There is still a chance for overlapping r/w positions in case the compressed\n * data has very different pixel progression, yet the 50% security distance\n * should deal with that, as QOI will bloat data by 25% at max (RGB -> OP byte + RGB).\n * Since we always assume RGBA at decoding stage, the possible bloat reduces to 20% at max.\n */\n const bytes = Math.max(ib, dl) + (Math.min(ib, dl) >> 1) + 4096;\n if (!this._inst) {\n this._mem = new WebAssembly.Memory({ initial: Math.ceil(bytes / 65536) });\n this._inst = wasmQoiDecode({ env: { memory: this._mem } });\n }\n else if (this._mem.buffer.byteLength < bytes) {\n this._mem.grow(Math.ceil((bytes - this._mem.buffer.byteLength) / 65536));\n this._d = null;\n }\n if (!this._d) {\n this._d = new Uint8Array(this._mem.buffer);\n }\n // put src data at the end of memory, also align to 256\n const chunkP = (this._mem.buffer.byteLength - dl) & ~0xFF;\n this._d.set(d, chunkP);\n this._inst.exports.dec(chunkP, dl, pixels);\n return this._d.subarray(1024 /* P8.DST_P */, 1024 /* P8.DST_P */ + ib);\n }\n release() {\n if (!this._inst)\n return;\n if (this._mem.buffer.byteLength > this.keepSize) {\n this._inst = this._d = this._mem = null;\n }\n }\n}\nexports.default = QoiDecoder;\n//# sourceMappingURL=QoiDecoder.wasm.js.map","\"use strict\";\n/**\n * Copyright (c) 2022, 2026 Joerg Breitbart\n * @license MIT\n */\nObject.defineProperty(exports, \"__esModule\", { value: true });\nexports.InWasm = InWasm;\nlet z = (s) => {\n if (Uint8Array.fromBase64)\n return Uint8Array.fromBase64(s);\n if (typeof Buffer !== 'undefined')\n return Buffer.from(s, 'base64');\n const b = atob(s);\n const r = new Uint8Array(b.length);\n for (let i = 0; i < r.length; ++i)\n r[i] = b.charCodeAt(i);\n return r;\n};\nfunction InWasm(def) {\n if (def.d) {\n const { t, s, d } = def;\n let b;\n let m;\n const W = WebAssembly;\n if (t === 0 /* OutputType.INSTANCE */) {\n if (s)\n return (e) => new W.Instance(m || (m = new W.Module(b || (b = z(d)))), e);\n return (e) => m\n ? W.instantiate(m, e)\n : W.instantiate(b || (b = z(d)), e).then(r => (m = r.module) && r.instance);\n }\n if (t === 1 /* OutputType.MODULE */) {\n if (s)\n return () => m || (m = new W.Module(b || (b = z(d))));\n return () => m\n ? Promise.resolve(m)\n : W.compile(b || (b = z(d))).then(r => m = r);\n }\n if (s)\n return () => b || (b = z(d));\n return () => Promise.resolve(b || (b = z(d)));\n }\n if (typeof _wasmCtx === 'undefined')\n throw new Error('must run \"inwasm\"');\n _wasmCtx.add(def);\n}\n//# sourceMappingURL=index.js.map","// The module cache\nvar __webpack_module_cache__ = {};\n\n// The require function\nfunction __webpack_require__(moduleId) {\n\t// Check if module is in cache\n\tvar cachedModule = __webpack_module_cache__[moduleId];\n\tif (cachedModule !== undefined) {\n\t\treturn cachedModule.exports;\n\t}\n\t// Create a new module (and put it into the cache)\n\tvar module = __webpack_module_cache__[moduleId] = {\n\t\t// no module.id needed\n\t\t// no module.loaded needed\n\t\texports: {}\n\t};\n\n\t// Execute the module function\n\t__webpack_modules__[moduleId].call(module.exports, module, module.exports, __webpack_require__);\n\n\t// Return the exports of the module\n\treturn module.exports;\n}\n\n","/**\n * Copyright (c) 2020 The xterm.js authors. All rights reserved.\n * @license MIT\n */\n\nimport type { ITerminalAddon, IDisposable } from '@xterm/xterm';\nimport type { ImageAddon as IImageApi } from '@xterm/addon-image';\nimport { Emitter, type IEvent } from 'common/Event';\nimport { IIPHandler } from './IIPHandler';\nimport { ImageRenderer } from './ImageRenderer';\nimport { ImageStorage, CELL_SIZE_DEFAULT } from './ImageStorage';\nimport { KittyGraphicsHandler } from './kitty/KittyGraphicsHandler';\nimport { KittyImageStorage } from './kitty/KittyImageStorage';\nimport { SixelHandler } from './SixelHandler';\nimport { SixelImageStorage } from './SixelImageStorage';\nimport { IIPImageStorage } from './IIPImageStorage';\nimport { ITerminalExt, IImageAddonOptions, IResetHandler } from './Types';\n\n\n/**\n * Document VT features provided by this addon.\n *\n * @vt: #E[Supported via @xterm/addon-image.] DCS SIXEL \"SIXEL Graphics\" \"DCS Ps ; Ps ; Ps ; q Pt ST\" \"Draw SIXEL image.\"\n *\n * Sixel support is provided by the addon @xterm/addon-image with these limitations:\n * - immediate coloring (no shared palette, allows high color settings of `img2sixel`)\n * - max. palette size of 4096 colors\n * - max. pixel width of 16K\n * - max. 25 MB per sixel sequence\n * - VT340 cursor positioning (begin of last sixel data row)\n *\n * See [addon readme](https://github.com/xtermjs/xterm.js/tree/master/addons/addon-image) for more details.\n *\n *\n * @vt: #E[Supported via @xterm/addon-image.] OSC 1337 \"iTerm2 Commands\" \"OSC 1337 ; Pt BEL\" \"Custom iTerm2 commands.\"\n *\n * Only the inline image protocol (IIP) is supported by the addon @xterm/addon-image with\n * the following limitations:\n * - sequence:\n * - format: `OSC 1337 ; File=inline=1 ; size=<unencoded size> ; ... : <base64 payload> BEL`\n * - size param must be set and payload may not exceed CEIL(size * 4 / 3)\n * - strict base64 handling as of RFC4648 §4 (standard alphabet, optional padding,\n * no separator bytes allowed)\n * - supported params: size, name, width, height, preserveAspectRatio\n * - image formats: PNG, JPEG and GIF\n * - no animation support (renders first image of a GIF)\n * - no multipart support\n * - VT340 cursor positioning (begin of last sixel data row)\n *\n * See [addon readme](https://github.com/xtermjs/xterm.js/tree/master/addons/addon-image)\n * and [iTerm2 IIP docs](https://iterm2.com/documentation-images.html) for more details.\n *\n *\n * @vt: #E[Supported via @xterm/addon-image.] APC KITTY_GRAPHICS \"Kitty Graphics\" \"APC G Pt ST\" \"Kitty Graphics Protocol.\"\n *\n * Kitty graphics support is provided by the addon @xterm/addon-image.\n * Note that while basic image output already works, this is still work in progress.\n */\n\n// default values of addon ctor options\nconst DEFAULT_OPTIONS: IImageAddonOptions = {\n enableSizeReports: true,\n pixelLimit: 16777216, // limit to 4096 * 4096 pixels\n sixelSupport: true,\n sixelScrolling: true,\n sixelPaletteLimit: 4096,\n sixelSizeLimit: 33554432,\n storageLimit: 128,\n showPlaceholder: true,\n iipSupport: true,\n iipSizeLimit: 33554432,\n kittySupport: true,\n kittySizeLimit: 33554432\n};\n\n// max palette size supported by the sixel lib (compile time setting)\nconst MAX_SIXEL_PALETTE_SIZE = 4096;\n\n// definitions for _xtermGraphicsAttributes sequence\nconst enum GaItem {\n COLORS = 1,\n SIXEL_GEO = 2,\n REGIS_GEO = 3\n}\nconst enum GaAction {\n READ = 1,\n SET_DEFAULT = 2,\n SET = 3,\n READ_MAX = 4\n}\nconst enum GaStatus {\n SUCCESS = 0,\n ITEM_ERROR = 1,\n ACTION_ERROR = 2,\n FAILURE = 3\n}\n\n\nexport class ImageAddon implements ITerminalAddon, IImageApi {\n private _opts: IImageAddonOptions;\n private _defaultOpts: IImageAddonOptions;\n private _storage: ImageStorage | undefined;\n private _renderer: ImageRenderer | undefined;\n private _disposables: IDisposable[] = [];\n private _terminal: ITerminalExt | undefined;\n private _handlers: Map<String, IResetHandler> = new Map();\n private readonly _onImageAdded = new Emitter<void>();\n public readonly onImageAdded: IEvent<void> = this._onImageAdded.event;\n\n constructor(opts?: Partial<IImageAddonOptions>) {\n this._opts = Object.assign({}, DEFAULT_OPTIONS, opts);\n this._defaultOpts = Object.assign({}, DEFAULT_OPTIONS, opts);\n }\n\n public dispose(): void {\n for (const obj of this._disposables) {\n obj.dispose();\n }\n this._disposables.length = 0;\n this._handlers.clear();\n this._onImageAdded.dispose();\n }\n\n private _disposeLater(...args: IDisposable[]): void {\n for (const obj of args) {\n this._disposables.push(obj);\n }\n }\n\n public activate(terminal: ITerminalExt): void {\n this._terminal = terminal;\n\n // internal data structures\n this._renderer = new ImageRenderer(terminal);\n this._storage = new ImageStorage(terminal, this._renderer, this._opts);\n this._storage.onImageAdded = () => this._onImageAdded.fire();\n\n // enable size reports\n if (this._opts.enableSizeReports) {\n const windowOps = terminal.options.windowOptions ?? {};\n windowOps.getWinSizePixels = true;\n windowOps.getCellSizePixels = true;\n windowOps.getWinSizeChars = true;\n terminal.options.windowOptions = windowOps;\n }\n\n this._disposeLater(\n this._renderer,\n this._storage,\n\n // DECSET/DECRST/DA1/XTSMGRAPHICS handlers\n terminal.parser.registerCsiHandler({ prefix: '?', final: 'h' }, params => this._decset(params)),\n terminal.parser.registerCsiHandler({ prefix: '?', final: 'l' }, params => this._decrst(params)),\n terminal.parser.registerCsiHandler({ final: 'c' }, params => this._da1(params)),\n terminal.parser.registerCsiHandler({ prefix: '?', final: 'S' }, params => this._xtermGraphicsAttributes(params)),\n\n // render hook\n terminal.onRender(range => this._storage?.render(range)),\n\n /**\n * reset handlers covered:\n * - DECSTR\n * - RIS\n * - Terminal.reset()\n */\n terminal.parser.registerCsiHandler({ intermediates: '!', final: 'p' }, () => this.reset()),\n terminal.parser.registerEscHandler({ final: 'c' }, () => this.reset()),\n terminal._core._inputHandler.onRequestReset(() => this.reset()),\n\n // wipe canvas and delete alternate images on buffer switch\n terminal.buffer.onBufferChange(() => this._storage?.wipeAlternate()),\n\n // extend images to the right on resize\n terminal.onResize(metrics => this._storage?.viewportResize(metrics))\n );\n\n // SIXEL handler\n if (this._opts.sixelSupport) {\n const sixelStorage = new SixelImageStorage(this._storage!, this._opts, this._renderer!, terminal);\n const sixelHandler = new SixelHandler(this._opts, sixelStorage, terminal);\n this._handlers.set('sixel', sixelHandler);\n this._disposeLater(\n terminal._core._inputHandler._parser.registerDcsHandler({ final: 'q' }, sixelHandler)\n );\n }\n\n // iTerm IIP handler\n if (this._opts.iipSupport) {\n const iipStorage = new IIPImageStorage(this._storage!);\n const iipHandler = new IIPHandler(this._opts, this._renderer!, iipStorage, terminal);\n this._handlers.set('iip', iipHandler);\n this._disposeLater(\n terminal._core._inputHandler._parser.registerOscHandler(1337, iipHandler)\n );\n }\n\n // Kitty graphics handler\n if (this._opts.kittySupport) {\n const kittyStorage = new KittyImageStorage(this._storage!);\n const kittyHandler = new KittyGraphicsHandler(this._opts, this._renderer!, kittyStorage, terminal);\n this._handlers.set('kitty', kittyHandler);\n this._disposeLater(\n kittyStorage,\n kittyHandler,\n terminal._core._inputHandler._parser.registerApcHandler({ final: 'G' }, kittyHandler)\n );\n }\n }\n\n // Note: storageLimit is skipped here to not intoduce a surprising side effect.\n public reset(): boolean {\n // reset options customizable by sequences to defaults\n this._opts.sixelScrolling = this._defaultOpts.sixelScrolling;\n this._opts.sixelPaletteLimit = this._defaultOpts.sixelPaletteLimit;\n // also clear image storage\n this._storage?.reset();\n // reset protocol handlers\n for (const handler of this._handlers.values()) {\n handler.reset();\n }\n return false;\n }\n\n public get storageLimit(): number {\n return this._storage?.getLimit() || -1;\n }\n\n public set storageLimit(limit: number) {\n this._storage?.setLimit(limit);\n this._opts.storageLimit = limit;\n }\n\n public get storageUsage(): number {\n if (this._storage) {\n return this._storage.getUsage();\n }\n return -1;\n }\n\n public get showPlaceholder(): boolean {\n return this._opts.showPlaceholder;\n }\n\n public set showPlaceholder(value: boolean) {\n this._opts.showPlaceholder = value;\n this._renderer?.showPlaceholder(value);\n }\n\n public getImageAtBufferCell(x: number, y: number): HTMLCanvasElement | undefined {\n return this._storage?.getImageAtBufferCell(x, y);\n }\n\n public extractTileAtBufferCell(x: number, y: number): HTMLCanvasElement | undefined {\n return this._storage?.extractTileAtBufferCell(x, y);\n }\n\n private _report(s: string): void {\n this._terminal?._core.input(s, false);\n }\n\n private _decset(params: (number | number[])[]): boolean {\n for (let i = 0; i < params.length; ++i) {\n switch (params[i]) {\n case 80:\n this._opts.sixelScrolling = false;\n break;\n }\n }\n return false;\n }\n\n private _decrst(params: (number | number[])[]): boolean {\n for (let i = 0; i < params.length; ++i) {\n switch (params[i]) {\n case 80:\n this._opts.sixelScrolling = true;\n break;\n }\n }\n return false;\n }\n\n // overload DA to return something more appropriate\n private _da1(params: (number | number[])[]): boolean {\n if (params[0]) {\n return true;\n }\n // reported features:\n // 62 - VT220\n // 4 - SIXEL support\n // 9 - charsets\n // 22 - ANSI colors\n if (this._opts.sixelSupport) {\n this._report(`\\x1b[?62;4;9;22c`);\n return true;\n }\n return false;\n }\n\n /**\n * Implementation of xterm's graphics attribute sequence.\n *\n * Supported features:\n * - read/change palette limits (max 4096 by sixel lib)\n * - read SIXEL canvas geometry (reports current window canvas or\n * squared pixelLimit if canvas > pixel limit)\n *\n * Everything else is deactivated.\n */\n private _xtermGraphicsAttributes(params: (number | number[])[]): boolean {\n if (params.length < 2) {\n return true;\n }\n if (params[0] === GaItem.COLORS) {\n switch (params[1]) {\n case GaAction.READ:\n this._report(`\\x1b[?${params[0]};${GaStatus.SUCCESS};${this._opts.sixelPaletteLimit}S`);\n return true;\n case GaAction.SET_DEFAULT:\n this._opts.sixelPaletteLimit = this._defaultOpts.sixelPaletteLimit;\n this._report(`\\x1b[?${params[0]};${GaStatus.SUCCESS};${this._opts.sixelPaletteLimit}S`);\n // also reset protocol handlers for now\n for (const handler of this._handlers.values()) {\n handler.reset();\n }\n return true;\n case GaAction.SET:\n if (params.length > 2 && !(params[2] instanceof Array) && params[2] <= MAX_SIXEL_PALETTE_SIZE) {\n this._opts.sixelPaletteLimit = params[2];\n this._report(`\\x1b[?${params[0]};${GaStatus.SUCCESS};${this._opts.sixelPaletteLimit}S`);\n } else {\n this._report(`\\x1b[?${params[0]};${GaStatus.ACTION_ERROR}S`);\n }\n return true;\n case GaAction.READ_MAX:\n this._report(`\\x1b[?${params[0]};${GaStatus.SUCCESS};${MAX_SIXEL_PALETTE_SIZE}S`);\n return true;\n default:\n this._report(`\\x1b[?${params[0]};${GaStatus.ACTION_ERROR}S`);\n return true;\n }\n }\n if (params[0] === GaItem.SIXEL_GEO) {\n switch (params[1]) {\n // we only implement read and read_max here\n case GaAction.READ:\n let width = this._renderer?.dimensions?.css.canvas.width;\n let height = this._renderer?.dimensions?.css.canvas.height;\n if (!width || !height) {\n // for some reason we have no working image renderer\n // --> fallback to default cell size\n const cellSize = CELL_SIZE_DEFAULT;\n width = (this._terminal?.cols || 80) * cellSize.width;\n height = (this._terminal?.rows || 24) * cellSize.height;\n }\n if (width * height < this._opts.pixelLimit) {\n this._report(`\\x1b[?${params[0]};${GaStatus.SUCCESS};${width.toFixed(0)};${height.toFixed(0)}S`);\n } else {\n // if we overflow pixelLimit report that squared instead\n const x = 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webpackUniversalModuleDefinition(root, factory) {\n\tif(typeof exports === 'object' && typeof module === 'object')\n\t\tmodule.exports = factory();\n\telse if(typeof define === 'function' && define.amd)\n\t\tdefine([], factory);\n\telse if(typeof exports === 'object')\n\t\texports[\"ImageAddon\"] = factory();\n\telse\n\t\troot[\"ImageAddon\"] = factory();\n})(globalThis, () => {\nreturn ","\"use strict\";\n/**\n * Copyright (c) 2019 Joerg Breitbart.\n * @license MIT\n */\nObject.defineProperty(exports, \"__esModule\", { value: true });\nexports.DEFAULT_FOREGROUND = exports.DEFAULT_BACKGROUND = exports.PALETTE_ANSI_256 = exports.PALETTE_VT340_GREY = exports.PALETTE_VT340_COLOR = exports.normalizeHLS = exports.normalizeRGB = exports.nearestColorIndex = exports.fromRGBA8888 = exports.toRGBA8888 = exports.alpha = exports.blue = exports.green = exports.red = exports.BIG_ENDIAN = void 0;\n// FIXME: cleanup this mess, move things either to decoder/encoder, keep only shared things\n// system endianess\nexports.BIG_ENDIAN = new Uint8Array(new Uint32Array([0xFF000000]).buffer)[0] === 0xFF;\nif (exports.BIG_ENDIAN) {\n console.warn('BE platform detected. This version of node-sixel works only on LE properly.');\n}\n// channel values\nfunction red(n) {\n return n & 0xFF;\n}\nexports.red = red;\nfunction green(n) {\n return (n >>> 8) & 0xFF;\n}\nexports.green = green;\nfunction blue(n) {\n return (n >>> 16) & 0xFF;\n}\nexports.blue = blue;\nfunction alpha(n) {\n return (n >>> 24) & 0xFF;\n}\nexports.alpha = alpha;\n/**\n * Convert RGB channels to native color RGBA8888.\n */\nfunction toRGBA8888(r, g, b, a = 255) {\n return ((a & 0xFF) << 24 | (b & 0xFF) << 16 | (g & 0xFF) << 8 | (r & 0xFF)) >>> 0; // ABGR32\n}\nexports.toRGBA8888 = toRGBA8888;\n/**\n * Convert native color to [r, g, b, a].\n */\nfunction fromRGBA8888(color) {\n return [color & 0xFF, (color >> 8) & 0xFF, (color >> 16) & 0xFF, color >>> 24];\n}\nexports.fromRGBA8888 = fromRGBA8888;\n/**\n * Get index of nearest color in `palette` for `color`.\n * Uses euclidean distance without any luminescence correction.\n */\nfunction nearestColorIndex(color, palette) {\n const r = red(color);\n const g = green(color);\n const b = blue(color);\n let min = Number.MAX_SAFE_INTEGER;\n let idx = -1;\n // use euclidean distance (manhattan gives very poor results)\n for (let i = 0; i < palette.length; ++i) {\n const dr = r - palette[i][0];\n const dg = g - palette[i][1];\n const db = b - palette[i][2];\n const d = dr * dr + dg * dg + db * db;\n if (!d)\n return i;\n if (d < min) {\n min = d;\n idx = i;\n }\n }\n return idx;\n}\nexports.nearestColorIndex = nearestColorIndex;\n// color conversions\n// HLS taken from: http://www.niwa.nu/2013/05/math-behind-colorspace-conversions-rgb-hsl\nfunction clamp(low, high, value) {\n return Math.max(low, Math.min(value, high));\n}\nfunction h2c(t1, t2, c) {\n if (c < 0)\n c += 1;\n if (c > 1)\n c -= 1;\n return c * 6 < 1\n ? t2 + (t1 - t2) * 6 * c\n : c * 2 < 1\n ? t1\n : c * 3 < 2\n ? t2 + (t1 - t2) * (4 - c * 6)\n : t2;\n}\nfunction HLStoRGB(h, l, s) {\n if (!s) {\n const v = Math.round(l * 255);\n return toRGBA8888(v, v, v);\n }\n const t1 = l < 0.5 ? l * (1 + s) : l + s - l * s;\n const t2 = 2 * l - t1;\n return toRGBA8888(clamp(0, 255, Math.round(h2c(t1, t2, h + 1 / 3) * 255)), clamp(0, 255, Math.round(h2c(t1, t2, h) * 255)), clamp(0, 255, Math.round(h2c(t1, t2, h - 1 / 3) * 255)));\n}\n/**\n * Normalize SIXEL RGB values (percent based, 0-100) to RGBA8888.\n */\nfunction normalizeRGB(r, g, b) {\n return (0xFF000000 | Math.round(b / 100 * 255) << 16 | Math.round(g / 100 * 255) << 8 | Math.round(r / 100 * 255)) >>> 0; // ABGR32\n}\nexports.normalizeRGB = normalizeRGB;\n/**\n * Normalize SIXEL HLS values to RGBA8888. Applies hue correction of +240°.\n */\nfunction normalizeHLS(h, l, s) {\n // Note: hue value is turned by 240° in VT340, all values given as fractions\n return HLStoRGB((h + 240 % 360) / 360, l / 100, s / 100);\n}\nexports.normalizeHLS = normalizeHLS;\n/**\n * default palettes\n */\n// FIXME: move palettes to Decoder.ts\n/**\n * 16 predefined color registers of VT340 (values in %):\n * ```\n * R G B\n * 0 Black 0 0 0\n * 1 Blue 20 20 80\n * 2 Red 80 13 13\n * 3 Green 20 80 20\n * 4 Magenta 80 20 80\n * 5 Cyan 20 80 80\n * 6 Yellow 80 80 20\n * 7 Gray 50% 53 53 53\n * 8 Gray 25% 26 26 26\n * 9 Blue* 33 33 60\n * 10 Red* 60 26 26\n * 11 Green* 33 60 33\n * 12 Magenta* 60 33 60\n * 13 Cyan* 33 60 60\n * 14 Yellow* 60 60 33\n * 15 Gray 75% 80 80 80\n * ```\n * (*) less saturated\n *\n * @see https://vt100.net/docs/vt3xx-gp/chapter2.html#S2.4\n*/\nexports.PALETTE_VT340_COLOR = new Uint32Array([\n normalizeRGB(0, 0, 0),\n normalizeRGB(20, 20, 80),\n normalizeRGB(80, 13, 13),\n normalizeRGB(20, 80, 20),\n normalizeRGB(80, 20, 80),\n normalizeRGB(20, 80, 80),\n normalizeRGB(80, 80, 20),\n normalizeRGB(53, 53, 53),\n normalizeRGB(26, 26, 26),\n normalizeRGB(33, 33, 60),\n normalizeRGB(60, 26, 26),\n normalizeRGB(33, 60, 33),\n normalizeRGB(60, 33, 60),\n normalizeRGB(33, 60, 60),\n normalizeRGB(60, 60, 33),\n normalizeRGB(80, 80, 80)\n]);\n/**\n * 16 predefined monochrome registers of VT340 (values in %):\n * ```\n * R G B\n * 0 Black 0 0 0\n * 1 Gray-2 13 13 13\n * 2 Gray-4 26 26 26\n * 3 Gray-6 40 40 40\n * 4 Gray-1 6 6 6\n * 5 Gray-3 20 20 20\n * 6 Gray-5 33 33 33\n * 7 White 7 46 46 46\n * 8 Black 0 0 0 0\n * 9 Gray-2 13 13 13\n * 10 Gray-4 26 26 26\n * 11 Gray-6 40 40 40\n * 12 Gray-1 6 6 6\n * 13 Gray-3 20 20 20\n * 14 Gray-5 33 33 33\n * 15 White 7 46 46 46\n * ```\n *\n * @see https://vt100.net/docs/vt3xx-gp/chapter2.html#S2.4\n */\nexports.PALETTE_VT340_GREY = new Uint32Array([\n normalizeRGB(0, 0, 0),\n normalizeRGB(13, 13, 13),\n normalizeRGB(26, 26, 26),\n normalizeRGB(40, 40, 40),\n normalizeRGB(6, 6, 6),\n normalizeRGB(20, 20, 20),\n normalizeRGB(33, 33, 33),\n normalizeRGB(46, 46, 46),\n normalizeRGB(0, 0, 0),\n normalizeRGB(13, 13, 13),\n normalizeRGB(26, 26, 26),\n normalizeRGB(40, 40, 40),\n normalizeRGB(6, 6, 6),\n normalizeRGB(20, 20, 20),\n normalizeRGB(33, 33, 33),\n normalizeRGB(46, 46, 46)\n]);\n/**\n * 256 predefined ANSI colors.\n *\n * @see https://en.wikipedia.org/wiki/ANSI_escape_code#8-bit\n */\nexports.PALETTE_ANSI_256 = (() => {\n // 16 lower colors (taken from xterm)\n const p = [\n toRGBA8888(0, 0, 0),\n toRGBA8888(205, 0, 0),\n toRGBA8888(0, 205, 0),\n toRGBA8888(205, 205, 0),\n toRGBA8888(0, 0, 238),\n toRGBA8888(205, 0, 205),\n toRGBA8888(0, 250, 205),\n toRGBA8888(229, 229, 229),\n toRGBA8888(127, 127, 127),\n toRGBA8888(255, 0, 0),\n toRGBA8888(0, 255, 0),\n toRGBA8888(255, 255, 0),\n toRGBA8888(92, 92, 255),\n toRGBA8888(255, 0, 255),\n toRGBA8888(0, 255, 255),\n toRGBA8888(255, 255, 255),\n ];\n // colors up to 232\n const d = [0, 95, 135, 175, 215, 255];\n for (let r = 0; r < 6; ++r) {\n for (let g = 0; g < 6; ++g) {\n for (let b = 0; b < 6; ++b) {\n p.push(toRGBA8888(d[r], d[g], d[b]));\n }\n }\n }\n // grey scale to up 255\n for (let v = 8; v <= 238; v += 10) {\n p.push(toRGBA8888(v, v, v));\n }\n return new Uint32Array(p);\n})();\n/**\n * Background: Black by default.\n * Foreground: White by default.\n *\n * Background color is used whenever a fill color is needed and not explicitly set.\n * Foreground color is used as default initial sixel color.\n */\nexports.DEFAULT_BACKGROUND = toRGBA8888(0, 0, 0, 255);\nexports.DEFAULT_FOREGROUND = toRGBA8888(255, 255, 255, 255);\n//# sourceMappingURL=Colors.js.map","\"use strict\";\n/**\n * Copyright (c) 2021 Joerg Breitbart.\n * @license MIT\n */\nObject.defineProperty(exports, \"__esModule\", { value: true });\nexports.decodeAsync = exports.decode = exports.Decoder = exports.DecoderAsync = void 0;\nconst Colors_1 = require(\"./Colors\");\nconst wasm_1 = require(\"./wasm\");\n/* istanbul ignore next */\nfunction decodeBase64(s) {\n if (typeof Buffer !== 'undefined') {\n return Buffer.from(s, 'base64');\n }\n const bytestring = atob(s);\n const result = new Uint8Array(bytestring.length);\n for (let i = 0; i < result.length; ++i) {\n result[i] = bytestring.charCodeAt(i);\n }\n return result;\n}\nconst WASM_BYTES = decodeBase64(wasm_1.LIMITS.BYTES);\nlet WASM_MODULE;\n// empty canvas\nconst NULL_CANVAS = new Uint32Array();\n// proxy for lazy binding of decoder methods to wasm env callbacks\nclass CallbackProxy {\n constructor() {\n this.bandHandler = (width) => 1;\n this.modeHandler = (mode) => 1;\n }\n handle_band(width) {\n return this.bandHandler(width);\n }\n mode_parsed(mode) {\n return this.modeHandler(mode);\n }\n}\n// default decoder options\nconst DEFAULT_OPTIONS = {\n memoryLimit: 2048 * 65536,\n sixelColor: Colors_1.DEFAULT_FOREGROUND,\n fillColor: Colors_1.DEFAULT_BACKGROUND,\n palette: Colors_1.PALETTE_VT340_COLOR,\n paletteLimit: wasm_1.LIMITS.PALETTE_SIZE,\n truncate: true\n};\n/**\n * Create a decoder instance asynchronously.\n * To be used in the browser main thread.\n */\nfunction DecoderAsync(opts) {\n const cbProxy = new CallbackProxy();\n const importObj = {\n env: {\n handle_band: cbProxy.handle_band.bind(cbProxy),\n mode_parsed: cbProxy.mode_parsed.bind(cbProxy)\n }\n };\n return WebAssembly.instantiate(WASM_MODULE || WASM_BYTES, importObj)\n .then((inst) => {\n WASM_MODULE = WASM_MODULE || inst.module;\n return new Decoder(opts, inst.instance || inst, cbProxy);\n });\n}\nexports.DecoderAsync = DecoderAsync;\n/**\n * Decoder - web assembly based sixel stream decoder.\n *\n * Usage pattern:\n * - call `init` to initialize decoder for new image\n * - feed data chunks to `decode` or `decodeString`\n * - grab pixels from `data32`\n * - optional: call `release` to free memory (e.g. after big images)\n * - start over with next image by calling `init`\n *\n * Properties:\n * - max width of 2^14 - 4 pixels (compile time setting in wasm)\n * - no explicit height limit (only limited by memory)\n * - max 4096 colors palette (compile time setting in wasm)\n *\n * Explanation operation modes:\n * - M1 Mode chosen for level 1 images (no raster attributes),\n * or for level 2 images with `truncate=false`.\n * - M2 Mode chosen for level 2 images with `truncate=true` (default).\n * While this mode is not fully spec conform (decoder not expected to truncate),\n * it is what spec conform encoders should create (should not excess raster).\n * This mode has several advantages:\n * - ~15% faster decoding speed\n * - image dimensions can be evaluated early without processing the whole data\n * - faster pixel access in `data32` (precalulated)\n * - image height is not reported as multiple of 6 pixels\n * - M0 Undecided mode state after `init`.\n * The level of an image is determined during early decoding based on the fact,\n * whether the data contains valid raster attributes before any sixel data.\n * Until then the mode of an image is marked as M0, meaning the real operation mode\n * could not be decided yet.\n */\nclass Decoder {\n /**\n * Synchonous ctor. Can be called from nodejs or a webworker context.\n * For instantiation in the browser main thread use `WasmDecoderAsync` instead.\n */\n constructor(opts, _instance, _cbProxy) {\n this._PIXEL_OFFSET = wasm_1.LIMITS.MAX_WIDTH + 4;\n this._canvas = NULL_CANVAS;\n this._bandWidths = [];\n this._maxWidth = 0;\n this._minWidth = wasm_1.LIMITS.MAX_WIDTH;\n this._lastOffset = 0;\n this._currentHeight = 0;\n this._opts = Object.assign({}, DEFAULT_OPTIONS, opts);\n if (this._opts.paletteLimit > wasm_1.LIMITS.PALETTE_SIZE) {\n throw new Error(`DecoderOptions.paletteLimit must not exceed ${wasm_1.LIMITS.PALETTE_SIZE}`);\n }\n if (!_instance) {\n const module = WASM_MODULE || (WASM_MODULE = new WebAssembly.Module(WASM_BYTES));\n _instance = new WebAssembly.Instance(module, {\n env: {\n handle_band: this._handle_band.bind(this),\n mode_parsed: this._initCanvas.bind(this)\n }\n });\n }\n else {\n _cbProxy.bandHandler = this._handle_band.bind(this);\n _cbProxy.modeHandler = this._initCanvas.bind(this);\n }\n this._instance = _instance;\n this._wasm = this._instance.exports;\n this._chunk = new Uint8Array(this._wasm.memory.buffer, this._wasm.get_chunk_address(), wasm_1.LIMITS.CHUNK_SIZE);\n this._states = new Uint32Array(this._wasm.memory.buffer, this._wasm.get_state_address(), 12);\n this._palette = new Uint32Array(this._wasm.memory.buffer, this._wasm.get_palette_address(), wasm_1.LIMITS.PALETTE_SIZE);\n this._palette.set(this._opts.palette);\n this._pSrc = new Uint32Array(this._wasm.memory.buffer, this._wasm.get_p0_address());\n this._wasm.init(Colors_1.DEFAULT_FOREGROUND, 0, this._opts.paletteLimit, 0);\n }\n // some readonly parser states for internal usage\n get _fillColor() { return this._states[0]; }\n get _truncate() { return this._states[8]; }\n get _rasterWidth() { return this._states[6]; }\n get _rasterHeight() { return this._states[7]; }\n get _width() { return this._states[2] ? this._states[2] - 4 : 0; }\n get _height() { return this._states[3]; }\n get _level() { return this._states[9]; }\n get _mode() { return this._states[10]; }\n get _paletteLimit() { return this._states[11]; }\n _initCanvas(mode) {\n if (mode === 2 /* M2 */) {\n const pixels = this.width * this.height;\n if (pixels > this._canvas.length) {\n if (this._opts.memoryLimit && pixels * 4 > this._opts.memoryLimit) {\n this.release();\n throw new Error('image exceeds memory limit');\n }\n this._canvas = new Uint32Array(pixels);\n }\n this._maxWidth = this._width;\n }\n else if (mode === 1 /* M1 */) {\n if (this._level === 2) {\n // got raster attributes, use them as initial size hint\n const pixels = Math.min(this._rasterWidth, wasm_1.LIMITS.MAX_WIDTH) * this._rasterHeight;\n if (pixels > this._canvas.length) {\n if (this._opts.memoryLimit && pixels * 4 > this._opts.memoryLimit) {\n this.release();\n throw new Error('image exceeds memory limit');\n }\n this._canvas = new Uint32Array(pixels);\n }\n }\n else {\n // else fallback to generic resizing, starting with 256*256 pixels\n if (this._canvas.length < 65536) {\n this._canvas = new Uint32Array(65536);\n }\n }\n }\n return 0; // 0 - continue, 1 - abort right away\n }\n _realloc(offset, additionalPixels) {\n const pixels = offset + additionalPixels;\n if (pixels > this._canvas.length) {\n if (this._opts.memoryLimit && pixels * 4 > this._opts.memoryLimit) {\n this.release();\n throw new Error('image exceeds memory limit');\n }\n // extend in 65536 pixel blocks\n const newCanvas = new Uint32Array(Math.ceil(pixels / 65536) * 65536);\n newCanvas.set(this._canvas);\n this._canvas = newCanvas;\n }\n }\n _handle_band(width) {\n const adv = this._PIXEL_OFFSET;\n let offset = this._lastOffset;\n if (this._mode === 2 /* M2 */) {\n let remaining = this.height - this._currentHeight;\n let c = 0;\n while (c < 6 && remaining > 0) {\n this._canvas.set(this._pSrc.subarray(adv * c, adv * c + width), offset + width * c);\n c++;\n remaining--;\n }\n this._lastOffset += width * c;\n this._currentHeight += c;\n }\n else if (this._mode === 1 /* M1 */) {\n this._realloc(offset, width * 6);\n this._maxWidth = Math.max(this._maxWidth, width);\n this._minWidth = Math.min(this._minWidth, width);\n for (let i = 0; i < 6; ++i) {\n this._canvas.set(this._pSrc.subarray(adv * i, adv * i + width), offset + width * i);\n }\n this._bandWidths.push(width);\n this._lastOffset += width * 6;\n this._currentHeight += 6;\n }\n return 0; // 0 - continue, 1 - abort right away\n }\n /**\n * Width of the image data.\n * Returns the rasterWidth in level2/truncating mode,\n * otherwise the max width, that has been seen so far.\n */\n get width() {\n return this._mode !== 1 /* M1 */\n ? this._width\n : Math.max(this._maxWidth, this._wasm.current_width());\n }\n /**\n * Height of the image data.\n * Returns the rasterHeight in level2/truncating mode,\n * otherwise height touched by sixels.\n */\n get height() {\n return this._mode !== 1 /* M1 */\n ? this._height\n : this._wasm.current_width()\n ? this._bandWidths.length * 6 + this._wasm.current_height()\n : this._bandWidths.length * 6;\n }\n /**\n * Get active palette colors as RGBA8888[] (borrowed).\n */\n get palette() {\n return this._palette.subarray(0, this._paletteLimit);\n }\n /**\n * Get the memory used by the decoder.\n *\n * This is a rough estimate accounting the wasm instance memory\n * and pixel buffers held on JS side (real value will be slightly\n * higher due to JS book-keeping).\n * Note that the decoder does not free ressources on its own,\n * call `release` to free excess memory.\n */\n get memoryUsage() {\n return this._canvas.byteLength + this._wasm.memory.buffer.byteLength + 8 * this._bandWidths.length;\n }\n /**\n * Get various properties of the decoder and the current image.\n */\n get properties() {\n return {\n width: this.width,\n height: this.height,\n mode: this._mode,\n level: this._level,\n truncate: !!this._truncate,\n paletteLimit: this._paletteLimit,\n fillColor: this._fillColor,\n memUsage: this.memoryUsage,\n rasterAttributes: {\n numerator: this._states[4],\n denominator: this._states[5],\n width: this._rasterWidth,\n height: this._rasterHeight,\n }\n };\n }\n /**\n * Initialize decoder for next image. Must be called before\n * any calls to `decode` or `decodeString`.\n */\n // FIXME: reorder arguments, better palette handling\n init(fillColor = this._opts.fillColor, palette = this._opts.palette, paletteLimit = this._opts.paletteLimit, truncate = this._opts.truncate) {\n this._wasm.init(this._opts.sixelColor, fillColor, paletteLimit, truncate ? 1 : 0);\n if (palette) {\n this._palette.set(palette.subarray(0, wasm_1.LIMITS.PALETTE_SIZE));\n }\n this._bandWidths.length = 0;\n this._maxWidth = 0;\n this._minWidth = wasm_1.LIMITS.MAX_WIDTH;\n this._lastOffset = 0;\n this._currentHeight = 0;\n }\n /**\n * Decode next chunk of data from start to end index (exclusive).\n * @throws Will throw if the image exceeds the memory limit.\n */\n decode(data, start = 0, end = data.length) {\n let p = start;\n while (p < end) {\n const length = Math.min(end - p, wasm_1.LIMITS.CHUNK_SIZE);\n this._chunk.set(data.subarray(p, p += length));\n this._wasm.decode(0, length);\n }\n }\n /**\n * Decode next chunk of string data from start to end index (exclusive).\n * Note: Decoding from string data is rather slow, use `decode` with byte data instead.\n * @throws Will throw if the image exceeds the memory limit.\n */\n decodeString(data, start = 0, end = data.length) {\n let p = start;\n while (p < end) {\n const length = Math.min(end - p, wasm_1.LIMITS.CHUNK_SIZE);\n for (let i = 0, j = p; i < length; ++i, ++j) {\n this._chunk[i] = data.charCodeAt(j);\n }\n p += length;\n this._wasm.decode(0, length);\n }\n }\n /**\n * Get current pixel data as 32-bit typed array (RGBA8888).\n * Also peeks into pixel data of the current band, that got not pushed yet.\n */\n get data32() {\n if (this._mode === 0 /* M0 */ || !this.width || !this.height) {\n return NULL_CANVAS;\n }\n // get width of pending band to peek into left-over data\n const currentWidth = this._wasm.current_width();\n if (this._mode === 2 /* M2 */) {\n let remaining = this.height - this._currentHeight;\n if (remaining > 0) {\n const adv = this._PIXEL_OFFSET;\n let offset = this._lastOffset;\n let c = 0;\n while (c < 6 && remaining > 0) {\n this._canvas.set(this._pSrc.subarray(adv * c, adv * c + currentWidth), offset + currentWidth * c);\n c++;\n remaining--;\n }\n if (remaining) {\n this._canvas.fill(this._fillColor, offset + currentWidth * c);\n }\n }\n return this._canvas.subarray(0, this.width * this.height);\n }\n if (this._mode === 1 /* M1 */) {\n if (this._minWidth === this._maxWidth) {\n let escape = false;\n if (currentWidth) {\n if (currentWidth !== this._minWidth) {\n escape = true;\n }\n else {\n const adv = this._PIXEL_OFFSET;\n let offset = this._lastOffset;\n this._realloc(offset, currentWidth * 6);\n for (let i = 0; i < 6; ++i) {\n this._canvas.set(this._pSrc.subarray(adv * i, adv * i + currentWidth), offset + currentWidth * i);\n }\n }\n }\n if (!escape) {\n return this._canvas.subarray(0, this.width * this.height);\n }\n }\n // worst case: re-align pixels if we have bands with different width\n // This is somewhat allocation intensive, any way to do that in-place, and just once?\n const final = new Uint32Array(this.width * this.height);\n final.fill(this._fillColor);\n let finalOffset = 0;\n let start = 0;\n for (let i = 0; i < this._bandWidths.length; ++i) {\n const bw = this._bandWidths[i];\n for (let p = 0; p < 6; ++p) {\n final.set(this._canvas.subarray(start, start += bw), finalOffset);\n finalOffset += this.width;\n }\n }\n // also handle left-over pixels of the current band\n if (currentWidth) {\n const adv = this._PIXEL_OFFSET;\n // other than finished bands, this runs only up to currentHeight\n const currentHeight = this._wasm.current_height();\n for (let i = 0; i < currentHeight; ++i) {\n final.set(this._pSrc.subarray(adv * i, adv * i + currentWidth), finalOffset + this.width * i);\n }\n }\n return final;\n }\n // fallthrough for all not handled cases\n return NULL_CANVAS;\n }\n /**\n * Same as `data32`, but returning pixel data as Uint8ClampedArray suitable\n * for direct usage with `ImageData`.\n */\n get data8() {\n return new Uint8ClampedArray(this.data32.buffer, 0, this.width * this.height * 4);\n }\n /**\n * Release image ressources on JS side held by the decoder.\n *\n * The decoder tries to re-use memory ressources of a previous image\n * to lower allocation and GC pressure. Decoding a single big image\n * will grow the memory usage of the decoder permanently.\n * Call `release` to reset the internal buffers and free the memory.\n * Note that this destroys the image data, call it when done processing\n * a rather big image, otherwise it is not needed. Use `memoryUsage`\n * to decide, whether the held memory is still within your limits.\n * This does not affect the wasm module (operates on static memory).\n */\n release() {\n this._canvas = NULL_CANVAS;\n this._bandWidths.length = 0;\n this._maxWidth = 0;\n this._minWidth = wasm_1.LIMITS.MAX_WIDTH;\n // also nullify parser states in wasm to avoid\n // width/height reporting potential out-of-bound values\n this._wasm.init(Colors_1.DEFAULT_FOREGROUND, 0, this._opts.paletteLimit, 0);\n }\n}\nexports.Decoder = Decoder;\n/**\n * Convenient decoding functions for easier usage.\n *\n * These can be used for casual decoding of sixel images,\n * that dont come in as stream chunks.\n * Note that the functions instantiate a stream decoder for every call,\n * which comes with a performance penalty of ~25%.\n */\n/**\n * Decode function with synchronous wasm loading.\n * Can be used in a web worker or in nodejs. Does not work reliable in normal browser context.\n * @throws Will throw if the image exceeds the memory limit.\n */\nfunction decode(data, opts) {\n const dec = new Decoder(opts);\n dec.init();\n typeof data === 'string' ? dec.decodeString(data) : dec.decode(data);\n return {\n width: dec.width,\n height: dec.height,\n data32: dec.data32,\n data8: dec.data8\n };\n}\nexports.decode = decode;\n/**\n * Decode function with asynchronous wasm loading.\n * Use this version in normal browser context.\n * @throws Will throw if the image exceeds the memory limit.\n */\nasync function decodeAsync(data, opts) {\n const dec = await DecoderAsync(opts);\n dec.init();\n typeof data === 'string' ? dec.decodeString(data) : dec.decode(data);\n return {\n width: dec.width,\n height: dec.height,\n data32: dec.data32,\n data8: dec.data8\n };\n}\nexports.decodeAsync = decodeAsync;\n//# sourceMappingURL=Decoder.js.map","\"use strict\";\nObject.defineProperty(exports, \"__esModule\", { value: true });\nexports.LIMITS = void 0;\nexports.LIMITS = {\n CHUNK_SIZE: 16384,\n PALETTE_SIZE: 4096,\n MAX_WIDTH: 16384,\n BYTES: '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'\n};\n//# sourceMappingURL=wasm.js.map","/**\n * Copyright (c) 2024-2026 The xterm.js authors. All rights reserved.\n * @license MIT\n *\n * Minimal event utilities for xterm.js core.\n * Simplified from VS Code's event.ts - no leak detection/profiling.\n */\n\nimport { IDisposable, DisposableStore, toDisposable } from './Lifecycle';\n\nexport interface IEvent<T> {\n (listener: (e: T) => any, thisArgs?: any, disposables?: IDisposable[] | DisposableStore): IDisposable;\n}\n\nexport class Emitter<T> {\n private _listeners: { fn: (e: T) => any, thisArgs: any }[] = [];\n private _disposed = false;\n private _event: IEvent<T> | undefined;\n\n public get event(): IEvent<T> {\n if (this._event) {\n return this._event;\n }\n this._event = (listener: (e: T) => any, thisArgs?: any, disposables?: IDisposable[] | DisposableStore) => {\n if (this._disposed) {\n return toDisposable(() => {});\n }\n\n const entry = { fn: listener, thisArgs };\n this._listeners = this._listeners.slice();\n this._listeners.push(entry);\n\n const result = toDisposable(() => {\n const idx = this._listeners.indexOf(entry);\n if (idx !== -1) {\n this._listeners = this._listeners.slice();\n this._listeners.splice(idx, 1);\n }\n });\n\n if (disposables) {\n if (Array.isArray(disposables)) {\n disposables.push(result);\n } else {\n disposables.add(result);\n }\n }\n\n return result;\n };\n return this._event;\n }\n\n public fire(event: T): void {\n if (this._disposed || !this._listeners.length) {\n return;\n }\n if (this._listeners.length === 1) {\n this._listeners[0].fn.call(this._listeners[0].thisArgs, event);\n return;\n }\n const listeners = this._listeners;\n for (let i = 0, len = listeners.length; i < len; ++i) {\n listeners[i].fn.call(listeners[i].thisArgs, event);\n }\n }\n\n public dispose(): void {\n if (this._disposed) {\n return;\n }\n this._disposed = true;\n this._listeners.length = 0;\n }\n}\n\nexport namespace EventUtils {\n export function forward<T>(from: IEvent<T>, to: Emitter<T>): IDisposable {\n return from(e => to.fire(e));\n }\n\n export function map<I, O>(event: IEvent<I>, map: (i: I) => O): IEvent<O> {\n return (listener: (e: O) => any, thisArgs?: any, disposables?: IDisposable[] | DisposableStore) => {\n return event(i => listener.call(thisArgs, map(i)), undefined, disposables);\n };\n }\n\n export function any<T>(...events: IEvent<T>[]): IEvent<T>;\n export function any(...events: IEvent<any>[]): IEvent<void>;\n export function any<T>(...events: IEvent<T>[]): IEvent<T> {\n return (listener: (e: T) => any, thisArgs?: any, disposables?: IDisposable[] | DisposableStore) => {\n const store = new DisposableStore();\n for (const event of events) {\n store.add(event(e => listener.call(thisArgs, e)));\n }\n if (disposables) {\n if (Array.isArray(disposables)) {\n disposables.push(store);\n } else {\n disposables.add(store);\n }\n }\n return store;\n };\n }\n\n export function runAndSubscribe<T>(event: IEvent<T>, handler: (e: T) => void, initial: T): IDisposable;\n export function runAndSubscribe<T>(event: IEvent<T>, handler: (e: T | undefined) => void): IDisposable;\n export function runAndSubscribe<T>(event: IEvent<T>, handler: (e: T | undefined) => void, initial?: T): IDisposable {\n handler(initial);\n return event(e => handler(e));\n }\n}\n","/**\n * Copyright (c) 2024-2026 The xterm.js authors. All rights reserved.\n * @license MIT\n *\n * Minimal lifecycle utilities for xterm.js core.\n * Simplified from VS Code's lifecycle.ts - no tracking/leak detection.\n */\n\nexport interface IDisposable {\n dispose(): void;\n}\n\nexport function toDisposable(fn: () => void): IDisposable {\n return { dispose: fn };\n}\n\nexport function dispose<T extends IDisposable>(disposable: T): T;\nexport function dispose<T extends IDisposable>(disposable: T | undefined): T | undefined;\nexport function dispose<T extends IDisposable>(disposables: T[]): T[];\nexport function dispose<T extends IDisposable>(arg: T | T[] | undefined): T | T[] | undefined {\n if (!arg) {\n return arg;\n }\n if (Array.isArray(arg)) {\n for (const d of arg) {\n d.dispose();\n }\n return [];\n }\n arg.dispose();\n return arg;\n}\n\nexport function combinedDisposable(...disposables: IDisposable[]): IDisposable {\n return toDisposable(() => dispose(disposables));\n}\n\nexport class DisposableStore implements IDisposable {\n private readonly _disposables = new Set<IDisposable>();\n private _isDisposed = false;\n\n public get isDisposed(): boolean {\n return this._isDisposed;\n }\n\n public add<T extends IDisposable>(o: T): T {\n if (this._isDisposed) {\n o.dispose();\n } else {\n this._disposables.add(o);\n }\n return o;\n }\n\n public dispose(): void {\n if (this._isDisposed) {\n return;\n }\n this._isDisposed = true;\n for (const d of this._disposables) {\n d.dispose();\n }\n this._disposables.clear();\n }\n\n public clear(): void {\n for (const d of this._disposables) {\n d.dispose();\n }\n this._disposables.clear();\n }\n}\n\nexport abstract class Disposable implements IDisposable {\n public static readonly None: IDisposable = Object.freeze({ dispose() { } });\n\n protected readonly _store = new DisposableStore();\n\n public dispose(): void {\n this._store.dispose();\n }\n\n protected _register<T extends IDisposable>(o: T): T {\n return this._store.add(o);\n }\n}\n\nexport class MutableDisposable<T extends IDisposable> implements IDisposable {\n private _value: T | undefined;\n private _isDisposed = false;\n\n public get value(): T | undefined {\n return this._isDisposed ? undefined : this._value;\n }\n\n public set value(value: T | undefined) {\n if (this._isDisposed || value === this._value) {\n return;\n }\n this._value?.dispose();\n this._value = value;\n }\n\n public clear(): void {\n this.value = undefined;\n }\n\n public dispose(): void {\n this._isDisposed = true;\n this._value?.dispose();\n this._value = undefined;\n }\n}\n","/**\n * Copyright (c) 2023 The xterm.js authors. All rights reserved.\n * @license MIT\n */\nimport { IImageAddonOptions, IOscHandler, IResetHandler, ITerminalExt } from './Types';\nimport { ImageRenderer } from './ImageRenderer';\nimport { IIPImageStorage } from './IIPImageStorage';\nimport { CELL_SIZE_DEFAULT } from './ImageStorage';\nimport Base64Decoder from 'xterm-wasm-parts/lib/base64/Base64Decoder.wasm';\nimport QoiDecoder from 'xterm-wasm-parts/lib/qoi/QoiDecoder.wasm';\nimport { HeaderParser, IHeaderFields, HeaderState, SequenceType } from './IIPHeaderParser';\nimport { imageType, UNSUPPORTED_TYPE } from './IIPMetrics';\n\n// Local const enum mirror - esbuild can't inline const enums from external packages\nconst enum DecoderConst {\n // Held memory in base64/QOI decoders between images. Zero because each kept\n // decoder pins a wasm memory, and V8 caps those per process (~124 in a\n // sandboxed renderer), so idle terminals must not hold one.\n KEEP_DATA = 0,\n // Initial buffer allocation for the decoder.\n INITIAL_DATA = 1048576,\n // Local mirror of const enum (esbuild can't inline const enums from external packages)\n OK = 0\n}\n\n// default IIP header values\nconst DEFAULT_HEADER: IHeaderFields = {\n type: SequenceType.INVALID,\n name: 'Unnamed file',\n size: 0,\n width: 'auto',\n height: 'auto',\n preserveAspectRatio: 1,\n inline: 0\n};\n\n\nexport class IIPHandler implements IOscHandler, IResetHandler {\n private _generation = 0;\n private _aborted = false;\n private _hp = new HeaderParser();\n private _header: IHeaderFields = DEFAULT_HEADER;\n private _dec: Base64Decoder;\n private _qoiDec: QoiDecoder;\n private _isMultipart = false;\n private _abortMulti = false;\n\n constructor(\n private readonly _opts: IImageAddonOptions,\n private readonly _renderer: ImageRenderer,\n private readonly _storage: IIPImageStorage,\n private readonly _coreTerminal: ITerminalExt\n ) {\n const maxEncodedBytes = Math.ceil(this._opts.iipSizeLimit * 4 / 3);\n const initialBytes = Math.min(DecoderConst.INITIAL_DATA, maxEncodedBytes);\n this._dec = new Base64Decoder(DecoderConst.KEEP_DATA, maxEncodedBytes, initialBytes);\n this._qoiDec = new QoiDecoder(DecoderConst.KEEP_DATA);\n }\n\n public reset(): void {\n this._generation++;\n this._hp.reset();\n this._dec.release();\n this._qoiDec.release();\n }\n\n public start(): void {\n this._aborted = false;\n this._hp.reset();\n }\n\n public put(data: Uint32Array, start: number, end: number): void {\n if (this._aborted) return;\n\n if (this._hp.state === HeaderState.END) {\n if ((this._dec.put(data.subarray(start, end)) as number) !== DecoderConst.OK) {\n this._dec.release();\n this._aborted = true;\n }\n } else {\n const dataPos = this._hp.parse(data, start, end);\n if (dataPos === -1) {\n this._aborted = true;\n return;\n }\n if (dataPos > 0) {\n const seqType = this._hp.fields.type;\n if (seqType === SequenceType.FILE) {\n if (this._isMultipart) {\n this._isMultipart = false;\n this._abortMulti = false;\n this._dec.release();\n }\n this._header = Object.assign({}, DEFAULT_HEADER, this._hp.fields);\n if (!this._header.inline) {\n this._aborted = true;\n return;\n }\n if (!this._initDecoder()) {\n this._aborted = true;\n return;\n }\n } else if (this._abortMulti) {\n this._aborted = true;\n return;\n }\n if ((this._dec.put(data.subarray(dataPos, end)) as number) !== DecoderConst.OK) {\n this._dec.release();\n this._aborted = true;\n if (this._isMultipart) this._abortMulti = true;\n }\n }\n }\n }\n\n public end(success: boolean): boolean | Promise<boolean> {\n if (this._aborted) return true;\n\n if (this._hp.state !== HeaderState.END) {\n if (this._hp.end()) return true;\n }\n const seqType = this._hp.fields.type;\n\n if (seqType === SequenceType.FILEPART) return true;\n\n if (seqType === SequenceType.REPORTCELLSIZE) {\n // OSC 1337 ; ReportCellSize=[height];[width];[scale] ST\n let w = CELL_SIZE_DEFAULT.width;\n let h = CELL_SIZE_DEFAULT.height;\n if (this._renderer.dimensions) {\n w = this._renderer.dimensions.css.canvas.width / this._coreTerminal.cols;\n h = this._renderer.dimensions.css.canvas.height / this._coreTerminal.rows;\n }\n const scale = this._coreTerminal._core._coreBrowserService?.dpr ?? 1;\n const report = `\\x1b]1337;ReportCellSize=${h.toFixed(3)};${w.toFixed(3)};${scale.toFixed(3)}\\x1b\\\\`;\n this._coreTerminal.input(report, false);\n return true;\n }\n\n if (seqType === SequenceType.MULTIPARTFILE) {\n this._header = Object.assign({}, DEFAULT_HEADER, this._hp.fields);\n this._isMultipart = true;\n this._abortMulti = false;\n this._dec.release();\n if (!this._initDecoder()) {\n this._abortMulti = true;\n }\n return true;\n }\n\n if (seqType === SequenceType.FILEEND) {\n if (!this._isMultipart) return true;\n this._isMultipart = false;\n if (this._abortMulti || this._header.type !== SequenceType.MULTIPARTFILE) return true;\n }\n\n // fallthrough for SequenceType.FILE & SequenceType.FILEEND\n\n let w = 0;\n let h = 0;\n\n // early exit condition chain\n let cond: number | boolean;\n let metrics = UNSUPPORTED_TYPE;\n if (cond = success) {\n if (cond = !this._dec.end()) {\n metrics = imageType(this._dec.data8);\n if (cond = metrics.mime !== 'unsupported') {\n w = metrics.width;\n h = metrics.height;\n if (cond = w && h && w * h < this._opts.pixelLimit) {\n [w, h] = this._resize(w, h).map(Math.floor);\n cond = w && h && w * h < this._opts.pixelLimit;\n } else {\n console.warn(`IIP: image dimension issue ${metrics.width}x${metrics.height}`);\n }\n } else {\n console.warn('IIP: unsupported image type');\n }\n } else {\n console.warn('IIP: error during BASE64 decoding');\n }\n }\n if (!cond) {\n this._dec.release();\n return true;\n }\n\n let blob: Blob | ImageData;\n if (metrics.mime === 'image/qoi') {\n let data: Uint8Array<ArrayBuffer>;\n try {\n data = this._qoiDec.decode(this._dec.data8);\n } catch (e) {\n console.warn('IIP: could not decode QOI image', e);\n this._dec.release();\n this._qoiDec.release();\n return true;\n }\n blob = new ImageData(\n new Uint8ClampedArray(data.buffer, data.byteOffset, data.byteLength),\n this._qoiDec.width,\n this._qoiDec.height\n );\n this._qoiDec.release();\n if (w === this._qoiDec.width && h === this._qoiDec.height) {\n // use fast-path if we don't need to rescale\n this._dec.release();\n const canvas = ImageRenderer.createCanvas(undefined, this._qoiDec.width, this._qoiDec.height);\n canvas.getContext('2d')?.putImageData(blob, 0, 0);\n this._storage.addImage(canvas);\n return true;\n }\n } else {\n blob = new Blob([this._dec.data8], { type: metrics.mime });\n }\n this._dec.release();\n const generation = this._generation;\n return createImageBitmap(blob, { resizeWidth: w, resizeHeight: h })\n .then(bm => {\n if (generation !== this._generation) {\n bm.close();\n return true;\n }\n this._storage.addImage(bm);\n return true;\n })\n .catch(e => {\n console.warn(`IIP: decoding error ${metrics.mime} ${metrics.width}x${metrics.height}`, e);\n return true;\n });\n }\n\n // Why: wasm memory exhaustion must drop this image, not throw out of the parser and wedge the write queue.\n private _initDecoder(): boolean {\n try {\n this._dec.init();\n return true;\n } catch (e) {\n console.warn('IIP: could not allocate decoder', e);\n this._dec.release();\n return false;\n }\n }\n\n private _resize(w: number, h: number): [number, number] {\n const cw = this._renderer.dimensions?.css.cell.width || CELL_SIZE_DEFAULT.width;\n const ch = this._renderer.dimensions?.css.cell.height || CELL_SIZE_DEFAULT.height;\n const width = this._renderer.dimensions?.css.canvas.width || cw * this._coreTerminal.cols;\n const height = this._renderer.dimensions?.css.canvas.height || ch * this._coreTerminal.rows;\n\n const rw = this._dim(this._header.width!, width, cw);\n const rh = this._dim(this._header.height!, height, ch);\n if (!rw && !rh) {\n const wf = width / w; // TODO: should this respect initial cursor offset?\n const hf = (height - ch) / h; // TODO: fix offset issues from float cell height\n const f = Math.min(wf, hf);\n return f < 1 ? [w * f, h * f] : [w, h];\n }\n return !rw\n ? [w * rh / h, rh]\n : this._header.preserveAspectRatio || !rw || !rh\n ? [rw, h * rw / w] : [rw, rh];\n }\n\n private _dim(s: string, total: number, cdim: number): number {\n if (s === 'auto') return 0;\n if (s.endsWith('%')) return parseInt(s.slice(0, -1), 10) * total / 100;\n if (s.endsWith('px')) return parseInt(s.slice(0, -2), 10);\n return parseInt(s, 10) * cdim;\n }\n}\n","/**\n * Copyright (c) 2023 The xterm.js authors. All rights reserved.\n * @license MIT\n */\n\n// eslint-disable-next-line\ndeclare const Buffer: any;\n\nexport const enum HeaderState {\n START = 0,\n ABORT = 1,\n KEY = 2,\n VALUE = 3,\n END = 4\n}\n\nexport const enum SequenceType {\n INVALID = 0,\n FILE = 1,\n MULTIPARTFILE = 2,\n FILEPART = 3,\n FILEEND = 4,\n REPORTCELLSIZE = 5\n}\n\nexport interface IHeaderFields {\n [key: string]: number | string | Uint32Array | null | undefined;\n // sequence type\n type: SequenceType;\n // base-64 encoded filename. Defaults to \"Unnamed file\".\n name: string;\n // File size in bytes. The file transfer will be canceled if this size is exceeded.\n size: number;\n /**\n * Optional width and height to render:\n * - N: N character cells.\n * - Npx: N pixels.\n * - N%: N percent of the session's width or height.\n * - auto: The image's inherent size will be used to determine an appropriate dimension.\n */\n width?: string;\n height?: string;\n // Optional, defaults to 1 respecting aspect ratio (width takes precedence).\n preserveAspectRatio?: number;\n // Optional, defaults to 0. If set to 1, the file will be displayed inline, else downloaded\n // (download not supported).\n inline?: number;\n}\n\n// field value decoders\n\n// ASCII bytes to string\nfunction toStr(data: Uint32Array): string {\n let s = '';\n for (let i = 0; i < data.length; ++i) {\n s += String.fromCharCode(data[i]);\n }\n return s;\n}\n\n// digits to integer\nfunction toInt(data: Uint32Array): number {\n let v = 0;\n for (let i = 0; i < data.length; ++i) {\n if (data[i] < 48 || data[i] > 57) {\n throw new Error('illegal char');\n }\n v = v * 10 + data[i] - 48;\n }\n return v;\n}\n\n// check for correct size entry\nfunction toSize(data: Uint32Array): string {\n const v = toStr(data);\n if (!v.match(/^((auto)|(\\d+?((px)|(%)){0,1}))$/)) {\n throw new Error('illegal size');\n }\n return v;\n}\n\n// name is base64 encoded utf-8\nfunction toName(data: Uint32Array): string {\n if (typeof Buffer !== 'undefined') {\n return Buffer.from(toStr(data), 'base64').toString();\n }\n const bs = atob(toStr(data));\n const b = new Uint8Array(bs.length);\n for (let i = 0; i < b.length; ++i) {\n b[i] = bs.charCodeAt(i);\n }\n return new TextDecoder().decode(b);\n}\n\nconst DECODERS: {[key: string]: (v: Uint32Array) => number | string} = {\n inline: toInt,\n size: toInt,\n name: toName,\n width: toSize,\n height: toSize,\n preserveAspectRatio: toInt\n};\n\n\n// sequence type markers\n// File\nconst FILE_MARKER = [70, 105, 108, 101];\n// MultipartFile\nconst MULTIPARTFILE_MARKER = [77, 117, 108, 116, 105, 112, 97, 114, 116, 70, 105, 108, 101];\n// FilePart\nconst FILEPART_MARKER = [70, 105, 108, 101, 80, 97, 114, 116];\n// FileEnd\nconst FILEEND_MARKER = [70, 105, 108, 101, 69, 110, 100];\n// ReportCellSize\nconst REPORTCELLSIZE_MARKER = [82, 101, 112, 111, 114, 116, 67, 101, 108, 108, 83, 105, 122, 101];\n\n// max allowed chars for sequence header\nconst MAX_FIELDCHARS = 1024;\n\n\nexport class HeaderParser {\n public state: HeaderState = HeaderState.START;\n private _buffer = new Uint32Array(MAX_FIELDCHARS);\n private _position = 0;\n private _key = '';\n public fields: {[key: string]: number | string | Uint32Array | null | undefined} = {};\n\n public reset(): void {\n this._buffer.fill(0);\n this.state = HeaderState.START;\n this._position = 0;\n this.fields = {};\n this._key = '';\n }\n\n public end(): number {\n if (this.state === HeaderState.START) {\n if (this._position === FILEEND_MARKER.length) {\n for (let k = 0; k < FILEEND_MARKER.length; ++k) {\n if (this._buffer[k] !== FILEEND_MARKER[k]) return this._a();\n }\n this.fields['type'] = SequenceType.FILEEND;\n this.state = HeaderState.END;\n return 0;\n }\n if (this._position === REPORTCELLSIZE_MARKER.length) {\n for (let k = 0; k < REPORTCELLSIZE_MARKER.length; ++k) {\n if (this._buffer[k] !== REPORTCELLSIZE_MARKER[k]) return this._a();\n }\n this.fields['type'] = SequenceType.REPORTCELLSIZE;\n this.state = HeaderState.END;\n return 0;\n }\n return this._a();\n }\n if (this.state === HeaderState.END) return 0;\n if (this.state === HeaderState.VALUE\n && this.fields.type === SequenceType.MULTIPARTFILE\n ) {\n if (!this._storeValue(this._position)) return this._a();\n this.state = HeaderState.END;\n return 0;\n }\n return this._a();\n }\n\n public parse(data: Uint32Array, start: number, end: number): number {\n let state = this.state;\n let pos = this._position;\n const buffer = this._buffer;\n if (state === HeaderState.ABORT || state === HeaderState.END) return -1;\n if (state === HeaderState.START && pos > 14) return -1;\n for (let i = start; i < end; ++i) {\n const c = data[i];\n switch (c) {\n case 59: // ;\n if (!this._storeValue(pos)) return this._a();\n state = HeaderState.KEY;\n pos = 0;\n break;\n case 61: // =\n if (state === HeaderState.START) {\n if (buffer[0] === 70) {\n // 'File' or 'FilePart'\n let k = 0;\n for (; k < FILE_MARKER.length; ++k) {\n if (buffer[k] !== FILE_MARKER[k]) return this._a();\n }\n this.fields['type'] = SequenceType.FILE;\n if (pos === FILEPART_MARKER.length) {\n for (; k < FILEPART_MARKER.length; ++k) {\n if (buffer[k] !== FILEPART_MARKER[k]) return this._a();\n }\n this.fields['type'] = SequenceType.FILEPART;\n this.state = HeaderState.END;\n return i + 1;\n }\n } else if (buffer[0] === 77) {\n // 'MultipartFile'\n for (let k = 0; k < MULTIPARTFILE_MARKER.length; ++k) {\n if (buffer[k] !== MULTIPARTFILE_MARKER[k]) return this._a();\n }\n this.fields['type'] = SequenceType.MULTIPARTFILE;\n } else {\n return this._a();\n }\n state = HeaderState.KEY;\n pos = 0;\n } else if (state === HeaderState.KEY) {\n if (!this._storeKey(pos)) return this._a();\n state = HeaderState.VALUE;\n pos = 0;\n } else if (state === HeaderState.VALUE) {\n if (pos >= MAX_FIELDCHARS) return this._a();\n buffer[pos++] = c;\n }\n break;\n case 58: // :\n if (state === HeaderState.VALUE) {\n if (!this._storeValue(pos)) return this._a();\n }\n this.state = HeaderState.END;\n return i + 1;\n default:\n if (pos >= MAX_FIELDCHARS) return this._a();\n buffer[pos++] = c;\n }\n }\n this.state = state;\n this._position = pos;\n return -2;\n }\n\n private _a(): number {\n this.fields.type = SequenceType.INVALID;\n this.state = HeaderState.ABORT;\n return -1;\n }\n\n private _storeKey(pos: number): boolean {\n const k = toStr(this._buffer.subarray(0, pos));\n if (k) {\n this._key = k;\n this.fields[k] = null;\n return true;\n }\n return false;\n }\n\n private _storeValue(pos: number): boolean {\n if (this._key) {\n try {\n const v = this._buffer.slice(0, pos);\n this.fields[this._key] = DECODERS[this._key] ? DECODERS[this._key](v) : v;\n } catch {\n return false;\n }\n return true;\n }\n return false;\n }\n}\n","/**\n * Copyright (c) 2023 The xterm.js authors. All rights reserved.\n * @license MIT\n */\n\nimport { IAddImageOpts } from './Types';\nimport { ImageStorage } from './ImageStorage';\n\n/**\n * IIP (iTerm Image Protocol) specific image storage controller.\n *\n * Wraps the shared ImageStorage with IIP protocol semantics:\n * - Always uses scrolling mode (cursor advances with image)\n */\nexport class IIPImageStorage {\n private _addImageOpts: IAddImageOpts = { scrolling: true, layer: 'top', zIndex: 0, cursorPos: 'iip' };\n constructor(\n private readonly _storage: ImageStorage\n ) {}\n\n /**\n * Add an IIP image to storage.\n * Always uses scrolling mode — cursor advances past the image.\n */\n public addImage(img: HTMLCanvasElement | ImageBitmap): void {\n this._storage.addImage(img, this._addImageOpts);\n }\n}\n","/**\n * Copyright (c) 2023 The xterm.js authors. All rights reserved.\n * @license MIT\n */\n\n\nexport type ImageType = 'image/png' | 'image/jpeg' | 'image/gif' | 'image/qoi' | 'image/webp' | 'image/avif' | 'unsupported' | '';\n\nexport interface IMetrics {\n mime: ImageType;\n width: number;\n height: number;\n}\n\nexport const UNSUPPORTED_TYPE: IMetrics = {\n mime: 'unsupported',\n width: 0,\n height: 0\n};\n\nexport function imageType(d: Uint8Array): IMetrics {\n if (d.length < 32) {\n return UNSUPPORTED_TYPE;\n }\n const d32 = new Uint32Array(d.buffer, d.byteOffset, 8);\n // PNG: 89 50 4E 47 0D 0A 1A 0A (8 first bytes == magic number for PNG)\n // + first chunk must be IHDR\n if (d32[0] === 0x474E5089 && d32[1] === 0x0A1A0A0D && d32[3] === 0x52444849) {\n return {\n mime: 'image/png',\n width: d[16] << 24 | d[17] << 16 | d[18] << 8 | d[19],\n height: d[20] << 24 | d[21] << 16 | d[22] << 8 | d[23]\n };\n }\n // JPEG: FF D8 FF\n if (d[0] === 0xFF && d[1] === 0xD8 && d[2] === 0xFF) {\n const [width, height] = jpgSize(d);\n return { mime: 'image/jpeg', width, height };\n }\n // GIF: GIF87a or GIF89a\n if (d32[0] === 0x38464947 && (d[4] === 0x37 || d[4] === 0x39) && d[5] === 0x61) {\n return {\n mime: 'image/gif',\n width: d[7] << 8 | d[6],\n height: d[9] << 8 | d[8]\n };\n }\n // QOI: qoif\n if (d32[0] === 0x66696F71) {\n return {\n mime: 'image/qoi',\n width: d[4] << 24 | d[5] << 16 | d[6] << 8 | d[7],\n height: d[8] << 24 | d[9] << 16 | d[10] << 8 | d[11]\n };\n }\n // WEBP: RIFF | xxxx | WEBP | VP8x\n if (d32[0] === 0x46464952 && d32[2] === 0x50424557 && (d32[3] & 0xFFFFFF) === 0x385056) {\n switch (d[15]) {\n case 0x58: // Extended WebP VP8X --> \"X\"\n return {\n mime: 'image/webp',\n width: (d[24] | d[25] << 8 | d[26] << 16) + 1,\n height: (d[27] | d[28] << 8 | d[29] << 16) + 1\n };\n case 0x4C: // Lossless WebP VP8L --> \"L\"\n if (d[20] !== 0x2f) return UNSUPPORTED_TYPE;\n const dim = d[21] | d[22] << 8 | d[23] << 16 | d[24] << 24;\n return {\n mime: 'image/webp',\n width: (dim & 0x3FFF) + 1,\n height: (dim >>> 14 & 0x3FFF) + 1\n };\n case 0x20: // Lossy WebP VP8 --> \" \"\n if (d[23] !== 0x9d || d[24] !== 0x01 || d[25] !== 0x2a) return UNSUPPORTED_TYPE;\n return {\n mime: 'image/webp',\n width: (d[26] | d[27] << 8) & 0x3FFF,\n height: (d[28] | d[29] << 8) & 0x3FFF\n };\n }\n return UNSUPPORTED_TYPE;\n }\n // AVIF: Box size | ftyp | avif/avis\n if (d32[1] === 0x70797466 && (d32[2] === 0x66697661 || d32[2] === 0x73697661)) {\n let pos = -1;\n // search for ispe box within first 1024 bytes\n const limit = Math.min(d.length - 16, 1024);\n for (let i = 8; i < limit; i++) {\n // scan for ispe\n if (d[i] === 0x69 && d[i + 1] === 0x73 && d[i + 2] === 0x70 && d[i + 3] === 0x65) {\n pos = i;\n break;\n }\n }\n if (pos !== -1) {\n // dimensions are in BE at +8 (width) at +12 (height)\n const width =\n d[pos + 8] << 24 |\n d[pos + 9] << 16 |\n d[pos + 10] << 8 |\n d[pos + 11];\n const height =\n d[pos + 12] << 24 |\n d[pos + 13] << 16 |\n d[pos + 14] << 8 |\n d[pos + 15];\n if (width > 0 && height > 0) {\n return { mime: 'image/avif', width, height };\n }\n }\n return UNSUPPORTED_TYPE;\n }\n return UNSUPPORTED_TYPE;\n}\n\n\nfunction jpgSize(d: Uint8Array): [number, number] {\n const len = d.length;\n let i = 4;\n let blockLength = d[i] << 8 | d[i + 1];\n while (true) {\n i += blockLength;\n if (i >= len) {\n // exhausted without size info\n return [0, 0];\n }\n if (d[i] !== 0xFF) {\n return [0, 0];\n }\n if (d[i + 1] === 0xC0 || d[i + 1] === 0xC2) {\n if (i + 8 < len) {\n return [\n d[i + 7] << 8 | d[i + 8],\n d[i + 5] << 8 | d[i + 6]\n ];\n }\n return [0, 0];\n }\n i += 2;\n blockLength = d[i] << 8 | d[i + 1];\n }\n}\n","/**\n * Copyright (c) 2020 The xterm.js authors. All rights reserved.\n * @license MIT\n */\n\nimport { toRGBA8888 } from 'sixel/lib/Colors';\nimport { IDisposable } from '@xterm/xterm';\nimport { ICellSize, ImageLayer, ITerminalExt, IImageSpec, IRenderDimensions, IRenderService } from './Types';\nimport { Disposable, MutableDisposable, toDisposable } from 'common/Lifecycle';\n\nconst enum Constants {\n PLACEHOLDER_LENGTH = 4096,\n PLACEHOLDER_HEIGHT = 24\n}\n\n/**\n * ImageRenderer - terminal frontend extension:\n * - provide primitives for canvas, ImageData, Bitmap (static)\n * - add canvas layer to DOM (browser only for now)\n * - draw image tiles onRender\n */\nexport class ImageRenderer extends Disposable implements IDisposable {\n /** @deprecated Kept for backward compat — points to top layer canvas. */\n public get canvas(): HTMLCanvasElement | undefined { return this._layers.get('top')?.canvas; }\n private _layers = new Map<ImageLayer, CanvasRenderingContext2D>();\n private _placeholder: HTMLCanvasElement | undefined;\n private _placeholderBitmap: ImageBitmap | undefined;\n private _optionsRefresh = this._register(new MutableDisposable());\n private _oldOpen: ((parent: HTMLElement) => void) | undefined;\n private _renderService: IRenderService | undefined;\n private _oldSetRenderer: ((renderer: any) => void) | undefined;\n\n // drawing primitive - canvas\n public static createCanvas(localDocument: Document | undefined, width: number, height: number): HTMLCanvasElement {\n /**\n * NOTE: We normally dont care, from which document the canvas\n * gets created, so we can fall back to global document,\n * if the terminal has no document associated yet.\n * This way early image loads before calling .open keep working\n * (still discouraged though, as the metrics will be screwed up).\n * Only the DOM output canvas should be on the terminal's document,\n * which gets explicitly checked in `insertLayerToDom`.\n */\n const canvas = (localDocument ?? document).createElement('canvas');\n canvas.width = width | 0;\n canvas.height = height | 0;\n return canvas;\n }\n\n // drawing primitive - ImageData with optional buffer\n public static createImageData(ctx: CanvasRenderingContext2D, width: number, height: number, buffer?: ArrayBuffer): ImageData {\n if (typeof ImageData !== 'function') {\n const imgData = ctx.createImageData(width, height);\n if (buffer) {\n imgData.data.set(new Uint8ClampedArray(buffer, 0, width * height * 4));\n }\n return imgData;\n }\n return buffer\n ? new ImageData(new Uint8ClampedArray(buffer, 0, width * height * 4), width, height)\n : new ImageData(width, height);\n }\n\n // drawing primitive - ImageBitmap\n public static createImageBitmap(img: ImageBitmapSource): Promise<ImageBitmap | undefined> {\n if (typeof createImageBitmap !== 'function') {\n return Promise.resolve(undefined);\n }\n return createImageBitmap(img);\n }\n\n\n constructor(private _terminal: ITerminalExt) {\n super();\n this._oldOpen = this._terminal._core.open;\n this._terminal._core.open = (parent: HTMLElement): void => {\n this._oldOpen?.call(this._terminal._core, parent);\n this._open();\n };\n if (this._terminal._core.screenElement) {\n this._open();\n }\n // hack to spot fontSize changes\n this._optionsRefresh.value = this._terminal._core.optionsService.onOptionChange(option => {\n if (option === 'fontSize') {\n this.rescaleCanvas();\n this._renderService?.refreshRows(0, this._terminal.rows);\n }\n });\n this._register(toDisposable(() => {\n this.removeLayerFromDom();\n this.removeLayerFromDom('bottom');\n if (this._terminal._core && this._oldOpen) {\n this._terminal._core.open = this._oldOpen;\n this._oldOpen = undefined;\n }\n if (this._renderService && this._oldSetRenderer) {\n this._renderService.setRenderer = this._oldSetRenderer;\n this._oldSetRenderer = undefined;\n }\n this._renderService = undefined;\n this._layers.clear();\n this._placeholderBitmap?.close();\n this._placeholderBitmap = undefined;\n this._placeholder = undefined;\n }));\n }\n\n /**\n * Enable the placeholder.\n */\n public showPlaceholder(value: boolean): void {\n if (value) {\n if (!this._placeholder && this.cellSize.height !== -1) {\n this._createPlaceHolder(Math.max(this.cellSize.height + 1, Constants.PLACEHOLDER_HEIGHT));\n }\n } else {\n this._placeholderBitmap?.close();\n this._placeholderBitmap = undefined;\n this._placeholder = undefined;\n }\n this._renderService?.refreshRows(0, this._terminal.rows);\n }\n\n /**\n * Dimensions of the terminal.\n * Forwarded from internal render service.\n */\n public get dimensions(): IRenderDimensions | undefined {\n return this._terminal.dimensions;\n }\n\n /**\n * Current cell size (float).\n */\n public get cellSize(): ICellSize {\n return {\n width: this.dimensions?.css.cell.width || -1,\n height: this.dimensions?.css.cell.height || -1\n };\n }\n\n /**\n * Clear a region of the image layer canvas.\n */\n public clearLines(start: number, end: number, layer?: ImageLayer): void {\n const y = start * (this.dimensions?.css.cell.height || 0);\n const w = this.dimensions?.css.canvas.width || 0;\n const h = (end + 1 - start) * (this.dimensions?.css.cell.height || 0);\n if (!layer || layer === 'top') {\n this._layers.get('top')?.clearRect(0, y, w, h);\n }\n if (!layer || layer === 'bottom') {\n this._layers.get('bottom')?.clearRect(0, y, w, h);\n }\n }\n\n /**\n * Clear whole image canvas.\n */\n public clearAll(layer?: ImageLayer): void {\n if (!layer || layer === 'top') {\n const ctx = this._layers.get('top');\n ctx?.clearRect(0, 0, ctx.canvas.width, ctx.canvas.height);\n }\n if (!layer || layer === 'bottom') {\n const ctx = this._layers.get('bottom');\n ctx?.clearRect(0, 0, ctx.canvas.width, ctx.canvas.height);\n }\n }\n\n /**\n * Draw neighboring tiles on the image layer canvas.\n */\n public draw(imgSpec: IImageSpec, tileId: number, col: number, row: number, count: number = 1): void {\n const ctx = this._layers.get(imgSpec.layer);\n if (!ctx) {\n return;\n }\n const { width, height } = this.cellSize;\n\n // Don't try to draw anything, if we cannot get valid renderer metrics.\n if (width === -1 || height === -1) {\n return;\n }\n\n this._rescaleImage(imgSpec, width, height);\n const img = imgSpec.actual!;\n const { width: sourceWidth, height: sourceHeight } = imgSpec.actualCellSize;\n const cols = Math.ceil(img.width / sourceWidth);\n\n const sx = (tileId % cols) * sourceWidth;\n const sy = Math.floor(tileId / cols) * sourceHeight;\n const dx = col * width;\n const dy = row * height;\n\n // safari bug: never access image source out of bounds\n const finalWidth = count * sourceWidth + sx > img.width ? img.width - sx : count * sourceWidth;\n const finalHeight = sy + sourceHeight > img.height ? img.height - sy : sourceHeight;\n\n // Floor all pixel offsets to get stable tile mapping without any overflows.\n // Note: For not pixel perfect aligned cells like in the DOM renderer\n // this will move a tile slightly to the top/left (subpixel range, thus ignore it).\n // FIX #34: avoid striping on displays with pixelDeviceRatio != 1 by ceiling height and width\n ctx.drawImage(\n img,\n Math.floor(sx), Math.floor(sy), Math.ceil(finalWidth), Math.ceil(finalHeight),\n Math.floor(dx), Math.floor(dy), Math.ceil(finalWidth * width / sourceWidth), Math.ceil(finalHeight * height / sourceHeight)\n );\n }\n\n /**\n * Extract a single tile from an image.\n */\n public extractTile(imgSpec: IImageSpec, tileId: number): HTMLCanvasElement | undefined {\n const { width, height } = this.cellSize;\n // Don't try to draw anything, if we cannot get valid renderer metrics.\n if (width === -1 || height === -1) {\n return;\n }\n this._rescaleImage(imgSpec, width, height);\n const img = imgSpec.actual!;\n const { width: sourceWidth, height: sourceHeight } = imgSpec.actualCellSize;\n const cols = Math.ceil(img.width / sourceWidth);\n const sx = (tileId % cols) * sourceWidth;\n const sy = Math.floor(tileId / cols) * sourceHeight;\n const finalWidth = sourceWidth + sx > img.width ? img.width - sx : sourceWidth;\n const finalHeight = sy + sourceHeight > img.height ? img.height - sy : sourceHeight;\n\n const canvas = ImageRenderer.createCanvas(this.document, Math.ceil(finalWidth * width / sourceWidth), Math.ceil(finalHeight * height / sourceHeight));\n const ctx = canvas.getContext('2d');\n if (ctx) {\n ctx.drawImage(\n img,\n Math.floor(sx), Math.floor(sy), Math.floor(finalWidth), Math.floor(finalHeight),\n 0, 0, canvas.width, canvas.height\n );\n return canvas;\n }\n }\n\n /**\n * Draw a line with placeholder on the image layer canvas.\n */\n public drawPlaceholder(col: number, row: number, count: number = 1): void {\n const ctx = this._layers.get('top');\n if (ctx) {\n const { width, height } = this.cellSize;\n\n // Don't try to draw anything, if we cannot get valid renderer metrics.\n if (width === -1 || height === -1) {\n return;\n }\n\n if (!this._placeholder) {\n this._createPlaceHolder(Math.max(height + 1, Constants.PLACEHOLDER_HEIGHT));\n } else if (height >= this._placeholder!.height) {\n this._createPlaceHolder(height + 1);\n }\n if (!this._placeholder) return;\n ctx.drawImage(\n this._placeholderBitmap ?? this._placeholder!,\n col * width,\n (row * height) % 2 ? 0 : 1, // needs %2 offset correction\n width * count,\n height,\n col * width,\n row * height,\n width * count,\n height\n );\n }\n }\n\n /**\n * Rescale image layer canvas if needed.\n * Checked once from `ImageStorage.render`.\n */\n public rescaleCanvas(): void {\n const w = this.dimensions?.css.canvas.width || 0;\n const h = this.dimensions?.css.canvas.height || 0;\n for (const ctx of this._layers.values()) {\n if (ctx.canvas.width !== w || ctx.canvas.height !== h) {\n ctx.canvas.width = w;\n ctx.canvas.height = h;\n }\n }\n }\n\n /**\n * Rescale image in storage if needed.\n */\n private _rescaleImage(spec: IImageSpec, currentWidth: number, currentHeight: number): void {\n if (currentWidth === spec.actualCellSize.width && currentHeight === spec.actualCellSize.height) {\n return;\n }\n const { width: originalWidth, height: originalHeight } = spec.origCellSize;\n if (currentWidth === originalWidth && currentHeight === originalHeight) {\n spec.actual = spec.orig;\n spec.actualCellSize.width = originalWidth;\n spec.actualCellSize.height = originalHeight;\n return;\n }\n const scaledWidth = Math.ceil(spec.orig!.width * currentWidth / originalWidth);\n const scaledHeight = Math.ceil(spec.orig!.height * currentHeight / originalHeight);\n // Upscale visible tiles directly; a full zoomed copy can dwarf the image budget.\n if (scaledWidth * scaledHeight > spec.orig!.width * spec.orig!.height) {\n spec.actual = spec.orig;\n spec.actualCellSize.width = originalWidth;\n spec.actualCellSize.height = originalHeight;\n return;\n }\n const canvas = ImageRenderer.createCanvas(this.document, scaledWidth, scaledHeight);\n const ctx = canvas.getContext('2d');\n if (ctx) {\n ctx.drawImage(spec.orig!, 0, 0, canvas.width, canvas.height);\n spec.actual = canvas;\n spec.actualCellSize.width = currentWidth;\n spec.actualCellSize.height = currentHeight;\n }\n }\n\n /**\n * Lazy init for the renderer.\n */\n private _open(): void {\n this._renderService = this._terminal._core._renderService;\n this._oldSetRenderer = this._renderService.setRenderer.bind(this._renderService);\n this._renderService.setRenderer = (renderer: any) => {\n for (const key of [...this._layers.keys()]) {\n this.removeLayerFromDom(key);\n }\n this._oldSetRenderer?.call(this._renderService, renderer);\n };\n }\n\n public insertLayerToDom(layer: ImageLayer = 'top'): void {\n // make sure that the terminal is attached to a document and to DOM\n if (!this.document || !this._terminal._core.screenElement) {\n console.warn('image addon: cannot insert output canvas to DOM, missing document or screenElement');\n return;\n }\n if (this._layers.has(layer)) {\n return;\n }\n const canvas = ImageRenderer.createCanvas(\n this.document, this.dimensions?.css.canvas.width || 0,\n this.dimensions?.css.canvas.height || 0\n );\n canvas.classList.add(`xterm-image-layer-${layer}`);\n const screenElement = this._terminal._core.screenElement;\n // Use isolation to create a stacking context without overriding z-index,\n // which would conflict with integrators (e.g. VS Code) that set their\n // own z-index on the screen element.\n screenElement.style.isolation = 'isolate';\n if (layer === 'bottom') {\n // Use z-index:-1 so it paints behind non-positioned text elements.\n // The screen element needs to be a stacking context (via isolation)\n // to contain the negative z-index, otherwise it would go behind the\n // entire terminal.\n canvas.style.zIndex = '-1';\n screenElement.insertBefore(canvas, screenElement.firstChild);\n } else {\n // Explicit z-index ensures the image canvas reliably stacks above\n // the text layer (DOM renderer rows). z-index: 0 is below the\n // selection overlay (z-index: 1).\n canvas.style.zIndex = '0';\n screenElement.appendChild(canvas);\n }\n const ctx = canvas.getContext('2d', { alpha: true });\n if (!ctx) {\n canvas.remove();\n return;\n }\n this._layers.set(layer, ctx);\n this.clearAll(layer);\n }\n\n public removeLayerFromDom(layer: ImageLayer = 'top'): void {\n const ctx = this._layers.get(layer);\n if (ctx) {\n ctx.canvas.remove();\n this._layers.delete(layer);\n }\n }\n\n public hasLayer(layer: ImageLayer): boolean {\n return this._layers.has(layer);\n }\n\n private _createPlaceHolder(height: number = Constants.PLACEHOLDER_HEIGHT): void {\n this._placeholderBitmap?.close();\n this._placeholderBitmap = undefined;\n\n // create blueprint to fill placeholder with\n const bWidth = 32; // must be 2^n\n const blueprint = ImageRenderer.createCanvas(this.document, bWidth, height);\n const ctx = blueprint.getContext('2d', { alpha: false });\n if (!ctx) return;\n const imgData = ImageRenderer.createImageData(ctx, bWidth, height);\n const d32 = new Uint32Array(imgData.data.buffer);\n const black = toRGBA8888(0, 0, 0);\n const white = toRGBA8888(255, 255, 255);\n d32.fill(black);\n for (let y = 0; y < height; ++y) {\n const shift = y % 2;\n const offset = y * bWidth;\n for (let x = 0; x < bWidth; x += 2) {\n d32[offset + x + shift] = white;\n }\n }\n ctx.putImageData(imgData, 0, 0);\n\n // create placeholder line, width aligned to blueprint width\n const width = (screen.width + bWidth - 1) & ~(bWidth - 1) || Constants.PLACEHOLDER_LENGTH;\n this._placeholder = ImageRenderer.createCanvas(this.document, width, height);\n const ctx2 = this._placeholder.getContext('2d', { alpha: false });\n if (!ctx2) {\n this._placeholder = undefined;\n return;\n }\n for (let i = 0; i < width; i += bWidth) {\n ctx2.drawImage(blueprint, i, 0);\n }\n const placeholder = this._placeholder;\n ImageRenderer.createImageBitmap(placeholder).then(bitmap => {\n if (this._placeholder !== placeholder) bitmap?.close();\n else this._placeholderBitmap = bitmap;\n }).catch(() => {});\n }\n\n public get document(): Document | undefined {\n return this._terminal._core._coreBrowserService?.window.document;\n }\n}\n","/**\n * Copyright (c) 2020 The xterm.js authors. All rights reserved.\n * @license MIT\n */\n\nimport { IDisposable } from '@xterm/xterm';\nimport { ImageRenderer } from './ImageRenderer';\nimport {\n ITerminalExt, IExtendedAttrsImage, IImageAddonOptions, IImageSpec,\n IBufferLineExt, BgFlags, Cell, Content, ICellSize, ExtFlags, Attributes,\n UnderlineStyle, IAddImageOpts\n} from './Types';\n\n\n// fallback default cell size\nexport const CELL_SIZE_DEFAULT: ICellSize = {\n width: 7,\n height: 14\n};\n\n/**\n * Extend extended attribute to also hold image tile information.\n *\n * Object definition is copied from base repo to fully mimick its behavior.\n * Image data is added as additional public properties `imageId` and `tileId`.\n */\nclass ExtendedAttrsImage implements IExtendedAttrsImage {\n private _ext: number = 0;\n public get ext(): number {\n if (this._urlId) {\n return (\n (this._ext & ~ExtFlags.UNDERLINE_STYLE) |\n (this.underlineStyle << 26)\n );\n }\n return this._ext;\n }\n public set ext(value: number) { this._ext = value; }\n\n public get underlineStyle(): UnderlineStyle {\n // Always return the URL style if it has one\n if (this._urlId) {\n return UnderlineStyle.DASHED;\n }\n return (this._ext & ExtFlags.UNDERLINE_STYLE) >> 26;\n }\n public set underlineStyle(value: UnderlineStyle) {\n this._ext &= ~ExtFlags.UNDERLINE_STYLE;\n this._ext |= (value << 26) & ExtFlags.UNDERLINE_STYLE;\n }\n\n public get underlineColor(): number {\n return this._ext & (Attributes.CM_MASK | Attributes.RGB_MASK);\n }\n public set underlineColor(value: number) {\n this._ext &= ~(Attributes.CM_MASK | Attributes.RGB_MASK);\n this._ext |= value & (Attributes.CM_MASK | Attributes.RGB_MASK);\n }\n\n public get underlineVariantOffset(): number {\n const val = (this._ext & ExtFlags.VARIANT_OFFSET) >> 29;\n if (val < 0) {\n return val ^ 0xFFFFFFF8;\n }\n return val;\n }\n public set underlineVariantOffset(value: number) {\n this._ext &= ~ExtFlags.VARIANT_OFFSET;\n this._ext |= (value << 29) & ExtFlags.VARIANT_OFFSET;\n }\n\n private _urlId: number = 0;\n public get urlId(): number {\n return this._urlId;\n }\n public set urlId(value: number) {\n this._urlId = value;\n }\n\n constructor(\n ext: number = 0,\n urlId: number = 0,\n public imageId = -1,\n public tileId = -1\n ) {\n this._ext = ext;\n this._urlId = urlId;\n }\n\n public clone(): IExtendedAttrsImage {\n /**\n * Technically we dont need a clone variant of ExtendedAttrsImage,\n * as we never clone a cell holding image data.\n * Note: Clone is only meant to be used by the InputHandler for\n * sticky attributes, which is never the case for image data.\n * We still provide a proper clone method to reflect the full ext attr\n * state in case there are future use cases for clone.\n */\n return new ExtendedAttrsImage(this._ext, this._urlId, this.imageId, this.tileId);\n }\n\n public isEmpty(): boolean {\n return this.underlineStyle === UnderlineStyle.NONE && this._urlId === 0 && this.imageId === -1;\n }\n}\nconst EMPTY_ATTRS = new ExtendedAttrsImage();\n\n\n/**\n * ImageStorage - extension of CoreTerminal:\n * - hold image data\n * - write/read image data to/from buffer\n *\n * TODO: image composition for overwrites\n */\nexport class ImageStorage implements IDisposable {\n // storage\n private _images: Map<number, IImageSpec> = new Map();\n // last used id\n private _lastId = 0;\n // last evicted id\n private _lowestId = 0;\n // whether a full clear happened before\n private _fullyCleared = false;\n // whether render should do a full clear\n private _needsFullClear = false;\n // hard limit of stored pixels (fallback limit of 10 MB)\n private _pixelLimit: number = 2500000;\n\n private _viewportMetrics: { cols: number, rows: number };\n public onImageAdded: (() => void) | undefined;\n public onImageDeleted: ((storageId: number) => void) | undefined;\n\n constructor(\n private _terminal: ITerminalExt,\n private _renderer: ImageRenderer,\n private _opts: IImageAddonOptions\n ) {\n try {\n this.setLimit(this._opts.storageLimit);\n } catch (e: unknown) {\n if (e instanceof Error) {\n console.error(e.message);\n }\n console.warn(`storageLimit is set to ${this.getLimit()} MB`);\n }\n this._viewportMetrics = {\n cols: this._terminal.cols,\n rows: this._terminal.rows\n };\n }\n\n public dispose(): void {\n this.reset();\n }\n\n public reset(): void {\n for (const spec of this._images.values()) {\n spec.marker?.dispose();\n }\n // NOTE: marker.dispose above already calls ImageBitmap.close\n // therefore we can just wipe the map here\n this._images.clear();\n this._renderer.clearAll();\n }\n\n public getLimit(): number {\n return this._pixelLimit * 4 / 1000000;\n }\n\n public setLimit(value: number): void {\n if (value < 0.5 || value > 1000) {\n throw RangeError('invalid storageLimit, should be at least 0.5 MB and not exceed 1G');\n }\n this._pixelLimit = (value / 4 * 1000000) >>> 0;\n this._evictOldest(0);\n }\n\n public getUsage(): number {\n return this._getStoredPixels() * 4 / 1000000;\n }\n\n private _getStoredPixels(): number {\n let storedPixels = 0;\n for (const spec of this._images.values()) {\n if (spec.orig) {\n storedPixels += spec.orig.width * spec.orig.height;\n if (spec.actual && spec.actual !== spec.orig) {\n storedPixels += spec.actual.width * spec.actual.height;\n }\n }\n }\n return storedPixels;\n }\n\n private _delImg(id: number): void {\n const spec = this._images.get(id);\n if (!spec) return;\n this._images.delete(id);\n // FIXME: really ugly workaround to get bitmaps deallocated :(\n if (window.ImageBitmap && spec.orig instanceof ImageBitmap) {\n spec.orig.close();\n }\n this.onImageDeleted?.(id);\n }\n\n /**\n * Wipe canvas and images on alternate buffer.\n */\n public wipeAlternate(): void {\n // remove all alternate tagged images\n const zero = [];\n for (const [id, spec] of this._images.entries()) {\n if (spec.bufferType === 'alternate') {\n spec.marker?.dispose();\n zero.push(id);\n }\n }\n for (const id of zero) {\n this._delImg(id);\n }\n // mark canvas to be wiped on next render\n this._needsFullClear = true;\n this._fullyCleared = false;\n }\n\n /**\n * Delete an image by its internal storage ID.\n * Used by protocols that support explicit deletion (e.g. Kitty a=d).\n */\n public deleteImage(id: number): void {\n const spec = this._images.get(id);\n if (spec) {\n spec.marker?.dispose();\n this._delImg(id);\n }\n }\n\n /**\n * Method to add an image to the storage.\n * @param img - The image to add (canvas or bitmap).\n * @param opts - Options for addImage:\n * - scrolling: When true, cursor advances with the image.\n * When false, image is placed at ORIGIN and cursor does not move.\n * - layer: Which canvas layer to render on ('top' or 'bottom').\n * - zIndex: Z-index for image layering within the same layer.\n * - cursorPos: 'vt340' for bottom-left, 'iip' for bottom.right.\n * @returns The internal image ID assigned to the stored image.\n */\n public addImage(img: HTMLCanvasElement | ImageBitmap, opts: IAddImageOpts): number {\n // never allow storage to exceed memory limit\n this._evictOldest(img.width * img.height);\n\n // calc rows x cols needed to display the image\n let cellSize = this._renderer.cellSize;\n if (cellSize.width === -1 || cellSize.height === -1) {\n cellSize = CELL_SIZE_DEFAULT;\n }\n const cols = Math.ceil(img.width / cellSize.width);\n const rows = Math.ceil(img.height / cellSize.height);\n\n const imageId = ++this._lastId;\n\n const buffer = this._terminal._core.buffer;\n const termCols = this._terminal.cols;\n const termRows = this._terminal.rows;\n const originX = buffer.x;\n const originY = buffer.y;\n let offset = originX;\n let tileCount = 0;\n\n if (!opts.scrolling) {\n buffer.x = 0;\n buffer.y = 0;\n offset = 0;\n }\n\n this._terminal._core._inputHandler._dirtyRowTracker.markDirty(buffer.y);\n for (let row = 0; row < rows; ++row) {\n const line = buffer.lines.get(buffer.y + buffer.ybase);\n for (let col = 0; col < cols; ++col) {\n if (offset + col >= termCols) break;\n this._writeToCell(line as IBufferLineExt, offset + col, imageId, row * cols + col);\n tileCount++;\n }\n if (opts.scrolling) {\n if (row < rows - 1) this._terminal._core._inputHandler.lineFeed();\n } else {\n if (++buffer.y >= termRows) break;\n }\n buffer.x = offset;\n }\n this._terminal._core._inputHandler._dirtyRowTracker.markDirty(buffer.y);\n\n // cursor positioning modes\n if (opts.scrolling) {\n if (opts.cursorPos === 'iip') {\n buffer.x = Math.min(offset + cols, termCols);\n } else {\n buffer.x = offset;\n }\n } else {\n buffer.x = originX;\n buffer.y = originY;\n }\n\n // deleted images with zero tile count\n const zero = [];\n for (const [id, spec] of this._images.entries()) {\n if (spec.tileCount < 1) {\n spec.marker?.dispose();\n zero.push(id);\n }\n }\n for (const id of zero) {\n this._delImg(id);\n }\n\n // eviction marker:\n // delete the image when the marker gets disposed\n const endMarker = this._terminal.registerMarker(0);\n endMarker?.onDispose(() => {\n const spec = this._images.get(imageId);\n if (spec) {\n this._delImg(imageId);\n }\n });\n\n // since markers do not work on alternate for some reason,\n // we evict images here manually\n if (this._terminal.buffer.active.type === 'alternate') {\n this._evictOnAlternate();\n }\n\n // create storage entry\n const imgSpec: IImageSpec = {\n orig: img,\n origCellSize: cellSize,\n actual: img,\n actualCellSize: { ...cellSize }, // clone needed, since later modified\n marker: endMarker || undefined,\n tileCount,\n bufferType: this._terminal.buffer.active.type,\n layer: opts.layer,\n zIndex: opts.zIndex\n };\n\n // finally add the image\n this._images.set(imageId, imgSpec);\n this.onImageAdded?.();\n return imageId;\n }\n\n\n /**\n * Render method. Collects buffer information and triggers\n * canvas updates.\n */\n // TODO: Should we move this to the ImageRenderer?\n public render(range: { start: number, end: number }): void {\n // Determine which layers have images\n let hasTopImages = false;\n let hasBottomImages = false;\n for (const spec of this._images.values()) {\n if (spec.layer === 'bottom') {\n hasBottomImages = true;\n } else {\n hasTopImages = true;\n }\n if (hasTopImages && hasBottomImages) break;\n }\n\n // Lazily insert layers that are needed\n if (hasTopImages && !this._renderer.hasLayer('top')) {\n this._renderer.insertLayerToDom('top');\n if (!this._renderer.hasLayer('top')) return;\n }\n if (hasBottomImages && !this._renderer.hasLayer('bottom')) {\n this._renderer.insertLayerToDom('bottom');\n }\n\n // rescale if needed\n this._renderer.rescaleCanvas();\n\n // exit early if we dont have any images to test for\n if (!this._images.size) {\n if (!this._fullyCleared) {\n this._renderer.clearAll();\n this._fullyCleared = true;\n this._needsFullClear = false;\n }\n if (this._renderer.hasLayer('top')) {\n this._renderer.removeLayerFromDom('top');\n }\n if (this._renderer.hasLayer('bottom')) {\n this._renderer.removeLayerFromDom('bottom');\n }\n return;\n }\n\n // Remove layers no longer needed\n if (!hasTopImages && this._renderer.hasLayer('top')) {\n this._renderer.clearAll('top');\n this._renderer.removeLayerFromDom('top');\n }\n if (!hasBottomImages && this._renderer.hasLayer('bottom')) {\n this._renderer.clearAll('bottom');\n this._renderer.removeLayerFromDom('bottom');\n }\n\n // buffer switches force a full clear\n if (this._needsFullClear) {\n this._renderer.clearAll();\n this._fullyCleared = true;\n this._needsFullClear = false;\n }\n\n const { start, end } = range;\n const buffer = this._terminal._core.buffer;\n const cols = this._terminal._core.cols;\n\n // clear drawing area\n this._renderer.clearLines(start, end);\n\n // Collect draw calls so we can sort by z-index (lower z drawn first).\n const drawCalls: { imgSpec: IImageSpec, tileId: number, col: number, row: number, count: number }[] = [];\n const placeholderCalls: { col: number, row: number, count: number }[] = [];\n\n // walk all cells in viewport and collect tiles found\n for (let row = start; row <= end; ++row) {\n const line = buffer.lines.get(row + buffer.ydisp) as IBufferLineExt;\n if (!line) return;\n for (let col = 0; col < cols; ++col) {\n if (line.getBg(col) & BgFlags.HAS_EXTENDED) {\n let e: IExtendedAttrsImage = line._extendedAttrs[col] ?? EMPTY_ATTRS;\n const imageId = e.imageId;\n if (imageId === undefined || imageId === -1) {\n continue;\n }\n const imgSpec = this._images.get(imageId);\n if (e.tileId !== -1) {\n const startTile = e.tileId;\n const startCol = col;\n let count = 1;\n /**\n * merge tiles to the right into a single draw call, if:\n * - not at end of line\n * - cell has same image id\n * - cell has consecutive tile id\n */\n while (\n ++col < cols\n && (line.getBg(col) & BgFlags.HAS_EXTENDED)\n && (e = line._extendedAttrs[col] ?? EMPTY_ATTRS)\n && (e.imageId === imageId)\n && (e.tileId === startTile + count)\n ) {\n count++;\n }\n col--;\n if (imgSpec) {\n if (imgSpec.actual) {\n drawCalls.push({ imgSpec, tileId: startTile, col: startCol, row, count });\n }\n } else if (this._opts.showPlaceholder) {\n placeholderCalls.push({ col: startCol, row, count });\n }\n this._fullyCleared = false;\n }\n }\n }\n }\n\n // Sort by z-index so lower z draws first (higher z renders on top)\n drawCalls.sort((a, b) => a.imgSpec.zIndex - b.imgSpec.zIndex);\n\n // Draw placeholders first (lowest priority)\n for (const call of placeholderCalls) {\n this._renderer.drawPlaceholder(call.col, call.row, call.count);\n }\n\n // Draw images in z-index order\n for (const call of drawCalls) {\n this._renderer.draw(call.imgSpec, call.tileId, call.col, call.row, call.count);\n }\n }\n\n public viewportResize(metrics: { cols: number, rows: number }): void {\n // exit early if we have nothing in storage\n if (!this._images.size) {\n this._viewportMetrics = metrics;\n return;\n }\n\n // handle only viewport width enlargements, exit all other cases\n // TODO: needs patch for tile counter\n if (this._viewportMetrics.cols >= metrics.cols) {\n this._viewportMetrics = metrics;\n return;\n }\n\n // walk scrollbuffer at old col width to find all possible expansion matches\n const buffer = this._terminal._core.buffer;\n const rows = buffer.lines.length;\n const oldCol = this._viewportMetrics.cols - 1;\n for (let row = 0; row < rows; ++row) {\n const line = buffer.lines.get(row) as IBufferLineExt;\n if (line.getBg(oldCol) & BgFlags.HAS_EXTENDED) {\n const e: IExtendedAttrsImage = line._extendedAttrs[oldCol] ?? EMPTY_ATTRS;\n const imageId = e.imageId;\n if (imageId === undefined || imageId === -1) {\n continue;\n }\n const imgSpec = this._images.get(imageId);\n if (!imgSpec) {\n continue;\n }\n // found an image tile at oldCol, check if it qualifies for right exapansion\n const tilesPerRow = Math.ceil((imgSpec.actual?.width || 0) / imgSpec.actualCellSize.width);\n if ((e.tileId % tilesPerRow) + 1 >= tilesPerRow) {\n continue;\n }\n // expand only if right side is empty (nothing got wrapped from below)\n let hasData = false;\n for (let rightCol = oldCol + 1; rightCol > metrics.cols; ++rightCol) {\n if (line._data[rightCol * Cell.SIZE + Cell.CONTENT] & Content.HAS_CONTENT_MASK) {\n hasData = true;\n break;\n }\n }\n if (hasData) {\n continue;\n }\n // do right expansion on terminal buffer\n const end = Math.min(metrics.cols, tilesPerRow - (e.tileId % tilesPerRow) + oldCol);\n let lastTile = e.tileId;\n for (let expandCol = oldCol + 1; expandCol < end; ++expandCol) {\n this._writeToCell(line as IBufferLineExt, expandCol, imageId, ++lastTile);\n imgSpec.tileCount++;\n }\n }\n }\n // store new viewport metrics\n this._viewportMetrics = metrics;\n }\n\n /**\n * Retrieve original canvas at buffer position.\n */\n public getImageAtBufferCell(x: number, y: number): HTMLCanvasElement | undefined {\n const buffer = this._terminal._core.buffer;\n const line = buffer.lines.get(y) as IBufferLineExt;\n if (line && line.getBg(x) & BgFlags.HAS_EXTENDED) {\n const e: IExtendedAttrsImage = line._extendedAttrs[x] ?? EMPTY_ATTRS;\n if (e.imageId && e.imageId !== -1) {\n const orig = this._images.get(e.imageId)?.orig;\n if (window.ImageBitmap && orig instanceof ImageBitmap) {\n const canvas = ImageRenderer.createCanvas(window.document, orig.width, orig.height);\n canvas.getContext('2d')?.drawImage(orig, 0, 0, orig.width, orig.height);\n return canvas;\n }\n return orig as HTMLCanvasElement;\n }\n }\n }\n\n /**\n * Extract active single tile at buffer position.\n */\n public extractTileAtBufferCell(x: number, y: number): HTMLCanvasElement | undefined {\n const buffer = this._terminal._core.buffer;\n const line = buffer.lines.get(y) as IBufferLineExt;\n if (line && line.getBg(x) & BgFlags.HAS_EXTENDED) {\n const e: IExtendedAttrsImage = line._extendedAttrs[x] ?? EMPTY_ATTRS;\n if (e.imageId && e.imageId !== -1 && e.tileId !== -1) {\n const spec = this._images.get(e.imageId);\n if (spec) {\n return this._renderer.extractTile(spec, e.tileId);\n }\n }\n }\n }\n\n // TODO: Do we need some blob offloading tricks here to avoid early eviction?\n // also see https://stackoverflow.com/questions/28307789/is-there-any-limitation-on-javascript-max-blob-size\n private _evictOldest(room: number): number {\n const used = this._getStoredPixels();\n let current = used;\n while (this._pixelLimit < current + room && this._images.size) {\n const spec = this._images.get(++this._lowestId);\n if (spec && spec.orig) {\n current -= spec.orig.width * spec.orig.height;\n if (spec.actual && spec.orig !== spec.actual) {\n current -= spec.actual.width * spec.actual.height;\n }\n spec.marker?.dispose();\n this._delImg(this._lowestId);\n }\n }\n return used - current;\n }\n\n private _writeToCell(line: IBufferLineExt, x: number, imageId: number, tileId: number): void {\n if (line._data[x * Cell.SIZE + Cell.BG] & BgFlags.HAS_EXTENDED) {\n const old = line._extendedAttrs[x];\n if (old) {\n if (old.imageId !== undefined) {\n // found an old ExtendedAttrsImage, since we know that\n // they are always isolated instances (single cell usage),\n // we can re-use it and just update their id entries\n const oldSpec = this._images.get(old.imageId);\n if (oldSpec) {\n // early eviction for in-viewport overwrites\n oldSpec.tileCount--;\n }\n old.imageId = imageId;\n old.tileId = tileId;\n return;\n }\n // found a plain ExtendedAttrs instance, clone it to new entry\n line._extendedAttrs[x] = new ExtendedAttrsImage(old.ext, old.urlId, imageId, tileId);\n return;\n }\n }\n // fall-through: always create new ExtendedAttrsImage entry\n line._data[x * Cell.SIZE + Cell.BG] |= BgFlags.HAS_EXTENDED;\n line._extendedAttrs[x] = new ExtendedAttrsImage(0, 0, imageId, tileId);\n }\n\n private _evictOnAlternate(): void {\n // nullify tile count of all images on alternate buffer\n for (const spec of this._images.values()) {\n if (spec.bufferType === 'alternate') {\n spec.tileCount = 0;\n }\n }\n // re-count tiles on whole buffer\n const buffer = this._terminal._core.buffer;\n for (let y = 0; y < this._terminal.rows; ++y) {\n const line = buffer.lines.get(y) as IBufferLineExt;\n if (!line) {\n continue;\n }\n for (let x = 0; x < this._terminal.cols; ++x) {\n if (line._data[x * Cell.SIZE + Cell.BG] & BgFlags.HAS_EXTENDED) {\n const imgId = line._extendedAttrs[x]?.imageId;\n if (imgId) {\n const spec = this._images.get(imgId);\n if (spec) {\n spec.tileCount++;\n }\n }\n }\n }\n }\n // deleted images with zero tile count\n const zero = [];\n for (const [id, spec] of this._images.entries()) {\n if (spec.bufferType === 'alternate' && !spec.tileCount) {\n spec.marker?.dispose();\n zero.push(id);\n }\n }\n for (const id of zero) {\n this._delImg(id);\n }\n }\n}\n","/**\n * Copyright (c) 2020, 2023 The xterm.js authors. All rights reserved.\n * @license MIT\n */\n\nimport { SixelImageStorage } from './SixelImageStorage';\nimport { IDcsHandler, IParams, IImageAddonOptions, ITerminalExt, AttributeData, IResetHandler, ReadonlyColorSet } from './Types';\nimport { toRGBA8888, BIG_ENDIAN, PALETTE_ANSI_256, PALETTE_VT340_COLOR } from 'sixel/lib/Colors';\nimport { RGBA8888 } from 'sixel/lib/Types';\nimport { ImageRenderer } from './ImageRenderer';\n\nimport { DecoderAsync, Decoder } from 'sixel/lib/Decoder';\nimport { LIMITS } from 'sixel/lib/wasm';\n\n// always free decoder ressources after decoding if it exceeds this limit\nconst MEM_PERMA_LIMIT = 4194304; // 1024 pixels * 1024 pixels * 4 channels = 4MB\n\n// custom default palette: VT340 (lower 16 colors) + ANSI256 (up to 256) + zeroed (up to 4096)\nconst DEFAULT_PALETTE = PALETTE_ANSI_256;\nDEFAULT_PALETTE.set(PALETTE_VT340_COLOR);\n\n// Why pooled: every decoder owns a wasm memory, and V8 caps live wasm memories\n// per process (~124 in a sandboxed renderer). Terminals borrow a decoder only\n// while a SIXEL sequence is open, so idle terminals hold none.\nconst MAX_IDLE_DECODERS = 2;\nconst idleDecoders = new Map<number, Decoder[]>();\nlet poolPrimed = false;\n\nfunction primeDecoderPool(memoryLimit: number): void {\n if (poolPrimed) return;\n poolPrimed = true;\n // Async compile once, off the parser's hot path; later decoders reuse the cached module.\n DecoderAsync({ memoryLimit, palette: DEFAULT_PALETTE }).then(\n d => releaseDecoder(d, memoryLimit),\n () => { poolPrimed = false; }\n );\n}\n\nfunction acquireDecoder(memoryLimit: number): Decoder {\n return idleDecoders.get(memoryLimit)?.pop() ?? new Decoder({ memoryLimit, palette: DEFAULT_PALETTE });\n}\n\nfunction releaseDecoder(dec: Decoder, memoryLimit: number): void {\n if (dec.memoryUsage > MEM_PERMA_LIMIT) {\n dec.release();\n }\n const idle = idleDecoders.get(memoryLimit) ?? [];\n if (idle.length < MAX_IDLE_DECODERS) {\n idle.push(dec);\n idleDecoders.set(memoryLimit, idle);\n }\n}\n\n\nexport class SixelHandler implements IDcsHandler, IResetHandler {\n private _size = 0;\n private _aborted = false;\n private _dec: Decoder | undefined;\n private _decMemoryLimit = 0;\n // Color registers outlive a single image, so they live here rather than in a pooled decoder.\n private readonly _palette = new Uint32Array(LIMITS.PALETTE_SIZE);\n\n constructor(\n private readonly _opts: IImageAddonOptions,\n private readonly _storage: SixelImageStorage,\n private readonly _coreTerminal: ITerminalExt\n ) {\n this._palette.set(DEFAULT_PALETTE);\n primeDecoderPool(this._opts.pixelLimit * 4);\n }\n\n public reset(): void {\n this._returnDecoder();\n this._palette.fill(0);\n this._palette.set(DEFAULT_PALETTE);\n }\n\n public hook(params: IParams): void {\n this._size = 0;\n this._aborted = false;\n this._returnDecoder();\n const memoryLimit = this._opts.pixelLimit * 4;\n try {\n this._dec = acquireDecoder(memoryLimit);\n } catch (e) {\n // Why: exhausting wasm memory must drop this image, not throw out of the parser and wedge the write queue.\n console.warn(`SIXEL: could not allocate decoder - ${e}`);\n this._aborted = true;\n return;\n }\n this._decMemoryLimit = memoryLimit;\n const fillColor = params.params[1] === 1 ? 0 : extractActiveBg(\n this._coreTerminal._core._inputHandler._curAttrData,\n this._coreTerminal._core._themeService?.colors);\n this._dec.init(fillColor, this._palette, this._opts.sixelPaletteLimit);\n }\n\n private _returnDecoder(): void {\n const dec = this._dec;\n if (!dec) return;\n this._dec = undefined;\n this._palette.set(dec.palette);\n releaseDecoder(dec, this._decMemoryLimit);\n }\n\n public put(data: Uint32Array, start: number, end: number): void {\n if (this._aborted || !this._dec) {\n return;\n }\n this._size += end - start;\n if (this._size > this._opts.sixelSizeLimit) {\n console.warn(`SIXEL: too much data, aborting`);\n this._aborted = true;\n this._dec.release();\n return;\n }\n try {\n this._dec.decode(data, start, end);\n } catch (e) {\n console.warn(`SIXEL: error while decoding image - ${e}`);\n this._aborted = true;\n this._dec.release();\n }\n }\n\n public unhook(success: boolean): boolean | Promise<boolean> {\n try {\n return this._unhook(success);\n } finally {\n this._returnDecoder();\n }\n }\n\n private _unhook(success: boolean): boolean {\n if (this._aborted || !success || !this._dec) {\n return true;\n }\n\n const width = this._dec.width;\n const height = this._dec.height;\n\n // partial fix for https://github.com/jerch/xterm-addon-image/issues/37\n if (!width || !height) {\n if (height) {\n this._storage.advanceCursor(height);\n }\n return true;\n }\n\n const canvas = ImageRenderer.createCanvas(undefined, width, height);\n canvas.getContext('2d')?.putImageData(new ImageData(this._dec.data8 as Uint8ClampedArray<ArrayBuffer>, width, height), 0, 0);\n this._storage.addImage(canvas);\n return true;\n }\n}\n\n\n/**\n * Some helpers to extract current terminal colors.\n */\n\n// get currently active background color from terminal\n// also respect INVERSE setting\nfunction extractActiveBg(attr: AttributeData, colors: ReadonlyColorSet | undefined): RGBA8888 {\n let bg = 0;\n if (!colors) {\n // FIXME: theme service is prolly not available yet,\n // happens if .open() was not called yet (bug in core?)\n return bg;\n }\n if (attr.isInverse()) {\n if (attr.isFgDefault()) {\n bg = convertLe(colors.foreground.rgba);\n } else if (attr.isFgRGB()) {\n const t = (attr.constructor as typeof AttributeData).toColorRGB(attr.getFgColor());\n bg = toRGBA8888(...t);\n } else {\n bg = convertLe(colors.ansi[attr.getFgColor()].rgba);\n }\n } else {\n if (attr.isBgDefault()) {\n bg = convertLe(colors.background.rgba);\n } else if (attr.isBgRGB()) {\n const t = (attr.constructor as typeof AttributeData).toColorRGB(attr.getBgColor());\n bg = toRGBA8888(...t);\n } else {\n bg = convertLe(colors.ansi[attr.getBgColor()].rgba);\n }\n }\n return bg;\n}\n\n// rgba values on the color managers are always in BE, thus convert to LE\nfunction convertLe(color: number): RGBA8888 {\n if (BIG_ENDIAN) return color;\n return (color & 0xFF) << 24 | (color >>> 8 & 0xFF) << 16 | (color >>> 16 & 0xFF) << 8 | color >>> 24 & 0xFF;\n}\n","/**\n * Copyright (c) 2020 The xterm.js authors. All rights reserved.\n * @license MIT\n */\n\nimport { ImageStorage, CELL_SIZE_DEFAULT } from './ImageStorage';\nimport { IImageAddonOptions, ITerminalExt, IAddImageOpts } from './Types';\nimport { ImageRenderer } from './ImageRenderer';\n\n/**\n * Sixel-specific image storage controller.\n *\n * Wraps the shared ImageStorage with sixel protocol semantics:\n * - Cursor behavior governed by DECSET 80 (sixelScrolling option)\n * - advanceCursor for empty sixels carrying only height\n */\nexport class SixelImageStorage {\n private _addImageOpts: IAddImageOpts = { scrolling: true, layer: 'top', zIndex: 0, cursorPos: 'vt340' };\n constructor(\n private readonly _storage: ImageStorage,\n private readonly _opts: IImageAddonOptions,\n private readonly _renderer: ImageRenderer,\n private readonly _terminal: ITerminalExt\n ) {}\n\n /**\n * Add a sixel image to storage.\n * Cursor behavior depends on the sixelScrolling option (DECSET 80).\n */\n public addImage(img: HTMLCanvasElement | ImageBitmap): void {\n this._addImageOpts.scrolling = this._opts.sixelScrolling;\n this._storage.addImage(img, this._addImageOpts);\n }\n\n /**\n * Only advance text cursor.\n * This is an edge case from empty sixels carrying only a height but no pixels.\n * Partially fixes https://github.com/jerch/xterm-addon-image/issues/37.\n */\n public advanceCursor(height: number): void {\n if (this._opts.sixelScrolling) {\n let cellSize = this._renderer.cellSize;\n if (cellSize.width === -1 || cellSize.height === -1) {\n cellSize = CELL_SIZE_DEFAULT;\n }\n const rows = Math.ceil(height / cellSize.height);\n for (let i = 1; i < rows; ++i) {\n this._terminal._core._inputHandler.lineFeed();\n }\n }\n }\n}\n","/**\n * Copyright (c) 2026 The xterm.js authors. All rights reserved.\n * @license MIT\n */\n\nimport { IDisposable } from '@xterm/xterm';\nimport { IApcHandler, IImageAddonOptions, IResetHandler, ITerminalExt, ImageLayer } from '../Types';\nimport { ImageRenderer } from '../ImageRenderer';\nimport { CELL_SIZE_DEFAULT } from '../ImageStorage';\nimport { imageType } from '../IIPMetrics';\nimport { KittyImageStorage } from './KittyImageStorage';\nimport Base64Decoder, { type DecodeStatus } from 'xterm-wasm-parts/lib/base64/Base64Decoder.wasm';\nimport {\n KittyAction,\n KittyFormat,\n KittyCompression,\n IKittyCommand,\n IPendingTransmission,\n IKittyImageData,\n KittyPixelConstants,\n parseKittyCommand\n} from './KittyGraphicsTypes';\n\nconst enum Constants {\n // Memory limit for base64 decoder (4MB, same as IIPHandler)\n DECODER_KEEP_DATA = 4194304,\n DECODER_INITIAL_DATA = 4194304, // 4MB\n // Local mirror of const enum (esbuild can't inline const enums from external packages)\n DECODER_OK = 0,\n // Maximum control data size\n MAX_CONTROL_DATA_SIZE = 512,\n // Semicolon codepoint\n SEMICOLON = 0x3B\n}\n\nconst DECODER_OK = Constants.DECODER_OK as unknown as DecodeStatus.OK;\n\n// Kitty graphics protocol handler with streaming base64 decoding.\nexport class KittyGraphicsHandler implements IApcHandler, IResetHandler, IDisposable {\n private _aborted = false;\n private _generation = 0;\n private _decodeError = false;\n\n private _activeDecoder: Base64Decoder | null = null;\n private readonly _maxEncodedBytes: number;\n private readonly _initialEncodedBytes: number;\n\n // Streaming related states\n\n // True while receiving control data (before semicolon).\n private _inControlData = true;\n\n // Buffer for control data.\n private _controlData = new Uint32Array(Constants.MAX_CONTROL_DATA_SIZE);\n private _controlLength = 0;\n\n // Pre-calculated encoded size limit\n private _encodedSizeLimit = 0;\n private _totalEncodedSize = 0;\n\n // Parsed command. These are the control data before semicolon.\n private _parsedCommand: IKittyCommand | null = null;\n\n // Storage related states\n\n private _pendingTransmissions: Map<number, IPendingTransmission> = new Map();\n // Tracks the pending key of the most recently started chunked upload.\n // Per spec, subsequent chunks only need m= (and optionally q=), without i=.\n // When a chunk arrives with no i=, this key is used to find the pending upload.\n private _lastPendingKey: number | undefined;\n\n constructor(\n private readonly _opts: IImageAddonOptions,\n private readonly _renderer: ImageRenderer,\n private readonly _kittyStorage: KittyImageStorage,\n private readonly _coreTerminal: ITerminalExt\n ) {\n // Convert decoded size limit -> max encoded bytes.\n this._maxEncodedBytes = Math.ceil(this._opts.kittySizeLimit * 4 / 3);\n // ensure we preallocate more than configured limit while using 4mb initial size.\n this._initialEncodedBytes = Math.min(Constants.DECODER_INITIAL_DATA, this._maxEncodedBytes);\n }\n\n public reset(): void {\n this._generation++;\n this._cleanupAllPending();\n if (this._activeDecoder) {\n this._activeDecoder.release();\n this._activeDecoder = null;\n }\n this._kittyStorage.reset();\n }\n\n public dispose(): void {\n this.reset();\n }\n\n private _removePendingEntry(key: number): void {\n this._pendingTransmissions.delete(key);\n if (this._lastPendingKey === key) {\n this._lastPendingKey = undefined;\n }\n }\n\n private _cleanupAllPending(): void {\n for (const pending of this._pendingTransmissions.values()) {\n pending.decoder.release();\n }\n this._pendingTransmissions.clear();\n this._lastPendingKey = undefined;\n }\n\n public start(): void {\n this._aborted = false;\n this._decodeError = false;\n this._inControlData = true;\n this._controlLength = 0;\n this._parsedCommand = null;\n // Pre-calculate encoded limit once: base64 is 4 bytes encoded → 3 bytes decoded\n this._encodedSizeLimit = this._maxEncodedBytes;\n this._totalEncodedSize = 0;\n this._activeDecoder = null;\n }\n\n public put(data: Uint32Array, start: number, end: number): void {\n if (this._aborted) return;\n\n if (!this._inControlData) {\n this._streamPayload(data, start, end);\n } else {\n // Scan for semicolon\n let controlEnd = end;\n for (let i = start; i < end; i++) {\n if (data[i] === Constants.SEMICOLON) {\n this._inControlData = false;\n controlEnd = i;\n break;\n }\n }\n\n // Copy control data\n const copyLength = controlEnd - start;\n if (this._controlLength + copyLength > Constants.MAX_CONTROL_DATA_SIZE) {\n this._aborted = true;\n return;\n }\n this._controlData.set(data.subarray(start, controlEnd), this._controlLength);\n this._controlLength += copyLength;\n\n if (!this._inControlData) {\n // Found semicolon - parse control data early for validation\n this._parsedCommand = parseKittyCommand(this._parseControlDataString());\n\n // Early validation: i+I conflict\n if (this._parsedCommand.id !== undefined && this._parsedCommand.imageNumber !== undefined) {\n this._sendResponse(this._parsedCommand.id, 'EINVAL:cannot specify both i and I keys', this._parsedCommand.quiet ?? 0);\n this._aborted = true;\n return;\n }\n\n // Delete action doesn't need payload - skip streaming\n if (this._parsedCommand.action === KittyAction.DELETE) {\n return;\n }\n\n // Stream remaining as payload\n const payloadStart = controlEnd + 1;\n if (payloadStart < end) {\n this._streamPayload(data, payloadStart, end);\n }\n }\n }\n }\n\n // Stream payload bytes into the base64 decoder.\n private _streamPayload(data: Uint32Array, start: number, end: number): void {\n if (this._aborted) return;\n\n // Check size limit (compare encoded bytes against pre-calculated limit)\n // Include cumulative size from pending transmission for multi-chunk images.\n // Per spec, subsequent chunks may omit i=, so fall back to _lastPendingKey.\n const pendingKey = this._parsedCommand?.id ?? this._lastPendingKey ?? 0;\n const pending = this._pendingTransmissions.get(pendingKey);\n const previousEncodedSize = pending?.totalEncodedSize ?? 0;\n this._totalEncodedSize += end - start;\n const cumulativeEncodedSize = previousEncodedSize + this._totalEncodedSize;\n if (cumulativeEncodedSize > this._encodedSizeLimit) {\n const decoderToRelease = this._activeDecoder ?? pending?.decoder;\n if (decoderToRelease) {\n decoderToRelease.release();\n }\n this._activeDecoder = null;\n if (pending) {\n this._removePendingEntry(pendingKey);\n }\n this._aborted = true;\n return;\n }\n\n if (this._decodeError) return;\n\n if (pending?.decoder && !this._activeDecoder) {\n this._activeDecoder = pending.decoder;\n }\n if (!this._activeDecoder) {\n // Budget WASM capacity, including one page of decoder state and rounding.\n const decoderCapacity = this._maxEncodedBytes + 131072;\n if (decoderCapacity > this._opts.storageLimit * 1000000) {\n this._aborted = true;\n if (this._parsedCommand?.id !== undefined) {\n this._sendResponse(this._parsedCommand.id, 'ENOMEM:pending image budget exceeded', this._parsedCommand.quiet ?? 0);\n }\n return;\n }\n const maxPending = Math.max(1, Math.floor(this._opts.storageLimit * 1000000 / decoderCapacity));\n while (this._pendingTransmissions.size >= maxPending) {\n const oldest = this._pendingTransmissions.entries().next().value;\n if (!oldest) break;\n oldest[1].decoder.release();\n this._removePendingEntry(oldest[0]);\n if (oldest[1].cmd.id !== undefined) {\n this._sendResponse(oldest[1].cmd.id, 'ENOMEM:pending image budget exceeded', oldest[1].cmd.quiet ?? 0);\n }\n }\n const decoder = new Base64Decoder(Constants.DECODER_KEEP_DATA, this._maxEncodedBytes, this._initialEncodedBytes);\n try {\n decoder.init();\n } catch (e) {\n // Why: wasm memory exhaustion must drop this image, not throw out of the parser and wedge the write queue.\n console.warn('KITTY: could not allocate decoder', e);\n this._aborted = true;\n if (this._parsedCommand?.id !== undefined) {\n this._sendResponse(this._parsedCommand.id, 'ENOMEM:could not allocate decoder', this._parsedCommand.quiet ?? 0);\n }\n return;\n }\n this._activeDecoder = decoder;\n }\n\n if (this._activeDecoder.put(data.subarray(start, end)) !== DECODER_OK) {\n this._activeDecoder.release();\n this._activeDecoder = null;\n this._decodeError = true;\n if (pending) {\n this._removePendingEntry(pendingKey);\n }\n }\n }\n\n public end(success: boolean): boolean | Promise<boolean> {\n if (this._aborted || !success) {\n if (this._activeDecoder) {\n this._activeDecoder.release();\n this._activeDecoder = null;\n }\n return true;\n }\n\n // No semicolon = no payload (delete, capability query)\n if (this._inControlData) {\n return this._handleNoPayloadCommand();\n }\n\n // Use command parsed early in put() - i+I already validated there\n const cmd = this._parsedCommand!;\n\n // Delete action was handled by skipping payload - just execute\n if (cmd.action === KittyAction.DELETE) {\n return this._handleDelete(cmd);\n }\n\n // Per spec, subsequent chunks may omit i=, so fall back to _lastPendingKey.\n const pendingKey = cmd.id ?? this._lastPendingKey ?? 0;\n const isMoreComing = cmd.more === 1;\n const pending = this._pendingTransmissions.get(pendingKey);\n\n if (isMoreComing) {\n if (this._activeDecoder) {\n if (pending) {\n pending.totalEncodedSize += this._totalEncodedSize;\n pending.decodeError = pending.decodeError || this._decodeError;\n } else {\n this._pendingTransmissions.set(pendingKey, {\n cmd: { ...cmd },\n decoder: this._activeDecoder,\n totalEncodedSize: this._totalEncodedSize,\n decodeError: this._decodeError\n });\n }\n this._lastPendingKey = pendingKey;\n this._activeDecoder = null;\n }\n return true;\n }\n\n // Final chunk received — clear the last pending key\n if (pending) {\n this._lastPendingKey = undefined;\n }\n\n let decodeError = this._decodeError;\n let finalCmd = cmd;\n let decoder = this._activeDecoder;\n\n if (pending) {\n finalCmd = pending.cmd;\n decoder = pending.decoder;\n decodeError = decodeError || pending.decodeError;\n this._pendingTransmissions.delete(pendingKey);\n }\n\n let imageBytes = new Uint8Array(0);\n if (decoder) {\n if (decoder.end() !== DECODER_OK) {\n decodeError = true;\n }\n imageBytes = decoder.data8;\n }\n this._activeDecoder = null;\n\n // Handle command first — handlers create Blob/ImageData from imageBytes,\n // which copies the data. Only then is it safe to release the decoder's\n // wasm memory that imageBytes points into.\n const result = this._handleCommandWithBytesAndCmd(finalCmd, imageBytes, decodeError);\n if (decoder) {\n decoder.release();\n }\n return result;\n }\n\n // Command handling\n\n private _parseControlDataString(): string {\n let str = '';\n for (let i = 0; i < this._controlLength; i++) {\n str += String.fromCodePoint(this._controlData[i]);\n }\n return str;\n }\n\n private _handleNoPayloadCommand(): boolean | Promise<boolean> {\n const cmd = parseKittyCommand(this._parseControlDataString());\n\n // Per spec: specifying both i and I is an error\n if (cmd.id !== undefined && cmd.imageNumber !== undefined) {\n this._sendResponse(cmd.id, 'EINVAL:cannot specify both i and I keys', cmd.quiet ?? 0);\n return true;\n }\n\n const action = cmd.action ?? 't';\n\n switch (action) {\n case KittyAction.DELETE:\n return this._handleDelete(cmd);\n case KittyAction.QUERY:\n this._sendResponse(cmd.id ?? 0, 'OK', cmd.quiet ?? 0);\n return true;\n case KittyAction.PLACEMENT:\n return this._handlePlacement(cmd);\n default:\n // TODO: Implement remaining actions when needed:\n // - a=f (frame): animation frame operations\n // - a=a (animation): animation control\n // - a=c (compose): compose images\n if (cmd.id !== undefined) {\n this._sendResponse(cmd.id, 'EINVAL:unsupported action', cmd.quiet ?? 0);\n }\n return true;\n }\n }\n\n private _handleCommandWithBytesAndCmd(cmd: IKittyCommand, bytes: Uint8Array, decodeError: boolean): boolean | Promise<boolean> {\n const action = cmd.action ?? 't';\n\n switch (action) {\n case KittyAction.TRANSMIT: {\n const result = this._handleTransmit(cmd, bytes, decodeError);\n // Only send response when _handleTransmit didn't already respond\n // (it handles unsupported transmission medium responses internally)\n if ((cmd.transmission ?? 'd') === 'd' && cmd.id !== undefined) {\n if (decodeError) {\n this._sendResponse(cmd.id, 'EINVAL:invalid base64 data', cmd.quiet ?? 0);\n } else if (bytes.length > 0) {\n this._sendResponse(cmd.id, 'OK', cmd.quiet ?? 0);\n }\n }\n return result;\n }\n case KittyAction.TRANSMIT_DISPLAY:\n return this._handleTransmitDisplay(cmd, bytes, decodeError);\n case KittyAction.QUERY:\n return this._handleQuery(cmd, bytes, decodeError);\n case KittyAction.PLACEMENT:\n // a=p ignores any payload — image data was already transmitted\n return this._handlePlacement(cmd);\n default:\n // TODO: Implement remaining actions when needed:\n // - a=f (frame): animation frame operations\n // - a=a (animation): animation control\n // - a=c (compose): compose images\n if (cmd.id !== undefined) {\n this._sendResponse(cmd.id, 'EINVAL:unsupported action', cmd.quiet ?? 0);\n }\n return true;\n }\n }\n\n private _handlePlacement(cmd: IKittyCommand): boolean | Promise<boolean> {\n if (cmd.id === undefined) {\n return true;\n }\n const id = cmd.id;\n const image = this._kittyStorage.getImage(id);\n if (!image) {\n this._sendResponse(id, 'ENOENT:image not found', cmd.quiet ?? 0, cmd.placementId);\n return true;\n }\n const result = this._displayImage(image, cmd);\n return result.then(success => {\n this._sendResponse(id, success ? 'OK' : 'EINVAL:image rendering failed', cmd.quiet ?? 0, cmd.placementId);\n return true;\n });\n }\n\n private _handleTransmit(cmd: IKittyCommand, bytes: Uint8Array, decodeError: boolean): boolean {\n // TODO: Support file-based transmission modes (t=f, t=t, t=s)\n // Currently only supports direct transmission (t=d, the default).\n // - t=f (file): Payload is base64-encoded file path. Terminal reads image from that path.\n // - t=t (temp file): Payload is base64-encoded path in temp directory. Terminal reads, deletes.\n // - t=s: Payload is base64-encoded POSIX shm name. Terminal reads from shared memory.\n // These modes require filesystem/IPC access not available in browsers. For Node.js/Electron:\n // 1. Check cmd.transmission (t key) before treating bytes as image data\n // 2. For t=f/t/s: decode bytes as UTF-8 string (the path/name), then read file contents\n // 3. For t=d: treat bytes as image data (current behavior)\n // When implementing, also update _handleQuery to accept these transmission mediums.\n const transmission = cmd.transmission ?? 'd';\n if (transmission !== 'd') {\n if (cmd.id !== undefined) {\n this._sendResponse(cmd.id, 'EINVAL:unsupported transmission medium', cmd.quiet ?? 0);\n }\n return true;\n }\n\n if (decodeError || bytes.length === 0) return true;\n\n this._kittyStorage.storeImage(cmd.id, {\n data: new Blob([bytes as BlobPart]),\n width: cmd.width ?? 0,\n height: cmd.height ?? 0,\n format: (cmd.format ?? KittyFormat.RGBA) as 24 | 32 | 100,\n compression: cmd.compression ?? ''\n });\n return true;\n }\n\n private _handleTransmitDisplay(cmd: IKittyCommand, bytes: Uint8Array, decodeError: boolean): boolean | Promise<boolean> {\n if (decodeError) {\n if (cmd.id !== undefined) {\n this._sendResponse(cmd.id, 'EINVAL:invalid base64 data', cmd.quiet ?? 0);\n }\n return true;\n }\n\n this._handleTransmit(cmd, bytes, decodeError);\n\n const id = cmd.id ?? this._kittyStorage.lastImageId;\n const image = this._kittyStorage.getImage(id);\n if (image) {\n const result = this._displayImage(image, cmd);\n if (cmd.id !== undefined) {\n return result.then(success => {\n this._sendResponse(id, success ? 'OK' : 'EINVAL:image rendering failed', cmd.quiet ?? 0);\n return true;\n });\n }\n return result.then(() => true);\n }\n return true;\n }\n\n private _handleQuery(cmd: IKittyCommand, bytes: Uint8Array, decodeError: boolean): boolean {\n const id = cmd.id ?? 0;\n const quiet = cmd.quiet ?? 0;\n\n // Per spec: reject unsupported transmission mediums (only t=d is supported atm)\n // TODO: When filesystem support is added (Node.js/Electron), update this to accept\n // t=f (file), t=t (temp file), and t=s (shared memory) and respond OK for queries.\n const transmission = cmd.transmission ?? 'd';\n if (transmission !== 'd') {\n this._sendResponse(id, 'EINVAL:unsupported transmission medium', quiet);\n return true;\n }\n\n // Check decode error first (invalid base64)\n if (decodeError) {\n this._sendResponse(id, 'EINVAL:invalid base64 data', quiet);\n return true;\n }\n\n // Capability query (no payload) - just respond OK\n if (bytes.length === 0) {\n this._sendResponse(id, 'OK', quiet);\n return true;\n }\n\n const format = cmd.format ?? KittyFormat.RGBA;\n\n if (format === KittyFormat.PNG) {\n this._sendResponse(id, 'OK', quiet);\n } else {\n const width = cmd.width ?? 0;\n const height = cmd.height ?? 0;\n\n if (!width || !height) {\n this._sendResponse(id, 'EINVAL:width and height required for raw pixel data', quiet);\n return true;\n }\n\n const bytesPerPixel = format === KittyFormat.RGBA ? KittyPixelConstants.BYTES_PER_PIXEL_RGBA : KittyPixelConstants.BYTES_PER_PIXEL_RGB;\n const expectedBytes = width * height * bytesPerPixel;\n\n if (bytes.length < expectedBytes) {\n this._sendResponse(id, `EINVAL:insufficient pixel data`, quiet);\n return true;\n }\n\n this._sendResponse(id, 'OK', quiet);\n }\n return true;\n }\n\n private _handleDelete(cmd: IKittyCommand): boolean {\n // Per spec: default delete selector is 'a' (delete all visible placements)\n const selector = cmd.deleteSelector ?? 'a';\n\n // TODO: Distinguish lowercase (delete placements only) from uppercase\n // (delete placements + free stored image data). Currently both variants\n // free everything since we don't separate stored data from placements.\n switch (selector) {\n case 'a':\n case 'A':\n this._cleanupAllPending();\n this._kittyStorage.deleteAll();\n break;\n case 'i':\n case 'I':\n // TODO: When placement id tracking is implemented (see TODO in\n // KittyImageStorage), d=i with p=<pid> should delete only that\n // specific placement, while d=i without p should delete all\n // placements for the image.\n if (cmd.id !== undefined) {\n const pending = this._pendingTransmissions.get(cmd.id);\n if (pending) {\n pending.decoder.release();\n }\n this._removePendingEntry(cmd.id);\n this._kittyStorage.deleteById(cmd.id);\n }\n break;\n default:\n // Unsupported selectors (c, n, p, q, r, x, y, z, f) — ignore for now\n break;\n }\n return true;\n }\n\n private _sendResponse(id: number, message: string, quiet: number, placementId?: number): void {\n const isOk = message === 'OK';\n if (isOk && quiet >= 1) return;\n if (!isOk && quiet >= 2) return;\n\n const pPart = placementId ? `,p=${placementId}` : '';\n const response = `\\x1b_Gi=${id}${pPart};${message}\\x1b\\\\`;\n this._coreTerminal._core.coreService.triggerDataEvent(response);\n }\n\n // Image display\n\n private _displayImage(image: IKittyImageData, cmd: IKittyCommand): Promise<boolean> {\n return this._decodeAndDisplay(image, cmd)\n .then(() => true)\n .catch(() => false);\n }\n\n private async _decodeAndDisplay(image: IKittyImageData, cmd: IKittyCommand): Promise<void> {\n const generation = this._generation;\n let bitmap: ImageBitmap | undefined = await this._createBitmap(image);\n\n try {\n if (generation !== this._generation) throw new Error('image decode canceled');\n const cropX = Math.max(0, cmd.x ?? 0);\n const cropY = Math.max(0, cmd.y ?? 0);\n const cropW = cmd.sourceWidth || (bitmap.width - cropX);\n const cropH = cmd.sourceHeight || (bitmap.height - cropY);\n\n const maxCropW = Math.max(0, bitmap.width - cropX);\n const maxCropH = Math.max(0, bitmap.height - cropY);\n const finalCropW = Math.max(0, Math.min(cropW, maxCropW));\n const finalCropH = Math.max(0, Math.min(cropH, maxCropH));\n\n if (finalCropW === 0 || finalCropH === 0) {\n throw new Error('invalid source rectangle');\n }\n\n if (cropX !== 0 || cropY !== 0 || finalCropW !== bitmap.width || finalCropH !== bitmap.height) {\n const cropped = await createImageBitmap(bitmap, cropX, cropY, finalCropW, finalCropH);\n bitmap.close();\n bitmap = cropped;\n }\n\n const cw = this._renderer.dimensions?.css.cell.width || CELL_SIZE_DEFAULT.width;\n const ch = this._renderer.dimensions?.css.cell.height || CELL_SIZE_DEFAULT.height;\n\n // Per spec: c/r default to image's natural cell dimensions.\n // If only one of c/r is specified, compute the other from image aspect ratio.\n let imgCols: number;\n let imgRows: number;\n if (cmd.columns !== undefined && cmd.rows !== undefined) {\n imgCols = cmd.columns;\n imgRows = cmd.rows;\n } else if (cmd.columns !== undefined) {\n imgCols = cmd.columns;\n imgRows = Math.max(1, Math.ceil((bitmap.height / bitmap.width) * (imgCols * cw) / ch));\n } else if (cmd.rows !== undefined) {\n imgRows = cmd.rows;\n imgCols = Math.max(1, Math.ceil((bitmap.width / bitmap.height) * (imgRows * ch) / cw));\n } else {\n imgCols = Math.ceil(bitmap.width / cw);\n imgRows = Math.ceil(bitmap.height / ch);\n }\n\n let w = bitmap.width;\n let h = bitmap.height;\n\n // Scale bitmap to fit placement rectangle when c/r are specified\n if (cmd.columns !== undefined || cmd.rows !== undefined) {\n w = Math.round(imgCols * cw);\n h = Math.round(imgRows * ch);\n }\n\n if (w * h > this._opts.pixelLimit) {\n throw new Error('image exceeds pixel limit');\n }\n\n // Save cursor position before addImage modifies it\n const buffer = this._coreTerminal._core.buffer;\n const savedX = buffer.x;\n const savedY = buffer.y;\n const savedYbase = buffer.ybase;\n\n // Determine layer based on z-index: negative = behind text, 0+ = on top.\n // When z<0 we always use the bottom layer even without allowTransparency —\n // the image will simply be hidden behind the opaque text background, which\n // is the correct behavior (client asked for \"behind text\").\n const wantsBottom = cmd.zIndex !== undefined && cmd.zIndex < 0;\n const layer: ImageLayer = wantsBottom ? 'bottom' : 'top';\n\n if (w !== bitmap.width || h !== bitmap.height) {\n const scaled = await createImageBitmap(bitmap, { resizeWidth: w, resizeHeight: h });\n bitmap.close();\n bitmap = scaled;\n }\n\n // Per spec: X/Y are pixel offsets within the first cell, so clamp to cell dimensions\n const xOffset = Math.min(Math.max(0, cmd.xOffset ?? 0), cw - 1);\n const yOffset = Math.min(Math.max(0, cmd.yOffset ?? 0), ch - 1);\n if (xOffset !== 0 || yOffset !== 0) {\n // Per spec: X/Y is not added to c/r area. When c/r are explicit, the\n // total placement area remains c*cw × r*ch pixels and the offset image\n // is clipped to fit. When c/r are unset, the padded canvas determines\n // the natural cell dimensions.\n const canvasW = (cmd.columns !== undefined) ? Math.round(imgCols * cw) : bitmap.width + xOffset;\n const canvasH = (cmd.rows !== undefined) ? Math.round(imgRows * ch) : bitmap.height + yOffset;\n const offsetCanvas = ImageRenderer.createCanvas(window.document, canvasW, canvasH);\n const offsetCtx = offsetCanvas.getContext('2d');\n if (!offsetCtx) {\n throw new Error('Failed to create offset canvas context');\n }\n offsetCtx.drawImage(bitmap, xOffset, yOffset);\n\n const offsetBitmap = await createImageBitmap(offsetCanvas);\n offsetCanvas.width = offsetCanvas.height = 0;\n bitmap.close();\n bitmap = offsetBitmap;\n w = bitmap.width;\n h = bitmap.height;\n if (w * h > this._opts.pixelLimit) {\n throw new Error('image exceeds pixel limit');\n }\n if (cmd.columns === undefined) {\n imgCols = Math.ceil(bitmap.width / cw);\n }\n if (cmd.rows === undefined) {\n imgRows = Math.ceil(bitmap.height / ch);\n }\n }\n\n if (generation !== this._generation) throw new Error('image decode canceled');\n const zIndex = cmd.zIndex ?? 0;\n this._kittyStorage.addImage(image.id, bitmap, true, layer, zIndex);\n bitmap = undefined; // ownership transferred to storage\n\n // Kitty cursor movement\n // Per spec: cursor placed at first column after last image column,\n // on the last row of the image. C=1 means don't move cursor.\n if (cmd.cursorMovement === 1) {\n // C=1: restore cursor to position before image was placed\n const scrolled = buffer.ybase - savedYbase;\n buffer.x = savedX;\n // Can't restore cursor to scrollback?\n buffer.y = Math.max(savedY - scrolled, 0);\n } else {\n // Default (C=0): advance cursor horizontally past the image\n // addImage already positioned cursor on the last row via lineFeeds\n buffer.x = Math.min(savedX + imgCols, this._coreTerminal.cols);\n }\n } catch (e) {\n bitmap?.close();\n throw e;\n }\n }\n\n // Create ImageBitmap from already-decoded image data.\n private async _createBitmap(image: IKittyImageData): Promise<ImageBitmap> {\n let bytes: Uint8Array = new Uint8Array(await image.data.arrayBuffer());\n\n if (image.compression === KittyCompression.ZLIB) {\n bytes = await this._decompressZlib(bytes);\n }\n\n if (image.format === KittyFormat.PNG) {\n const metrics = imageType(bytes);\n // IHDR dimensions are parsed with signed shifts, so a value >= 0x80000000 comes\n // back negative and a bare `>` pixel-limit test passes it; require positive.\n if (metrics.mime !== 'image/png' || !(metrics.width > 0) || !(metrics.height > 0) || metrics.width * metrics.height > this._opts.pixelLimit) {\n throw new RangeError('PNG exceeds pixel limit or has invalid dimensions');\n }\n const blob = new Blob([bytes as BlobPart], { type: 'image/png' });\n if (!window.createImageBitmap) {\n const url = URL.createObjectURL(blob);\n const img = new Image();\n return new Promise<ImageBitmap>((resolve, reject) => {\n img.addEventListener('load', () => {\n URL.revokeObjectURL(url);\n const canvas = ImageRenderer.createCanvas(window.document, img.width, img.height);\n canvas.getContext('2d')?.drawImage(img, 0, 0);\n createImageBitmap(canvas).then(resolve).catch(reject);\n });\n img.addEventListener('error', () => {\n URL.revokeObjectURL(url);\n reject(new Error('Failed to load image'));\n });\n img.src = url;\n });\n }\n return createImageBitmap(blob);\n }\n\n // Raw pixel data\n const width = image.width;\n const height = image.height;\n\n if (!width || !height) {\n throw new Error('Width and height required for raw pixel data');\n }\n\n const bytesPerPixel = image.format === KittyFormat.RGBA ? KittyPixelConstants.BYTES_PER_PIXEL_RGBA : KittyPixelConstants.BYTES_PER_PIXEL_RGB;\n const expectedBytes = width * height * bytesPerPixel;\n\n if (bytes.length < expectedBytes) {\n throw new Error('Insufficient pixel data');\n }\n\n const pixelCount = width * height;\n\n if (image.format === KittyFormat.RGBA) {\n // RGBA: use bytes directly — no copy needed\n return createImageBitmap(new ImageData(new Uint8ClampedArray(bytes.buffer as ArrayBuffer, bytes.byteOffset, pixelCount * KittyPixelConstants.BYTES_PER_PIXEL_RGBA), width, height));\n }\n\n // RGB→RGBA: interleave alpha using uint32 block processing (4 pixels per iteration).\n // 3 uint32 reads + 4 uint32 writes per 4 pixels vs 28 byte reads/writes — ~6x faster.\n // Assumes little-endian (all modern browsers/Node.js).\n const data = new Uint8ClampedArray(pixelCount * KittyPixelConstants.BYTES_PER_PIXEL_RGBA);\n const src32 = new Uint32Array(bytes.buffer, bytes.byteOffset, Math.floor(bytes.byteLength / 4));\n const dst32 = new Uint32Array(data.buffer);\n const alignedPixels = pixelCount & ~3; // round down to multiple of 4\n\n let srcOffset = 0;\n let dstOffset = 0;\n for (let i = 0; i < alignedPixels; i += 4) {\n const b0 = src32[srcOffset++];\n const b1 = src32[srcOffset++];\n const b2 = src32[srcOffset++];\n // Little-endian: pixel bytes are [R,G,B] → uint32 ABGR layout\n dst32[dstOffset++] = 0xFF000000 | b0;\n dst32[dstOffset++] = 0xFF000000 | (b0 >>> 24) | (b1 << 8);\n dst32[dstOffset++] = 0xFF000000 | (b1 >>> 16) | (b2 << 16);\n dst32[dstOffset++] = 0xFF000000 | (b2 >>> 8);\n }\n\n // Handle remaining 1–3 pixels\n let srcByte = alignedPixels * KittyPixelConstants.BYTES_PER_PIXEL_RGB;\n let dstByte = alignedPixels * KittyPixelConstants.BYTES_PER_PIXEL_RGBA;\n for (let i = alignedPixels; i < pixelCount; i++) {\n data[dstByte] = bytes[srcByte];\n data[dstByte + 1] = bytes[srcByte + 1];\n data[dstByte + 2] = bytes[srcByte + 2];\n data[dstByte + 3] = KittyPixelConstants.ALPHA_OPAQUE;\n srcByte += KittyPixelConstants.BYTES_PER_PIXEL_RGB;\n dstByte += KittyPixelConstants.BYTES_PER_PIXEL_RGBA;\n }\n\n return createImageBitmap(new ImageData(data, width, height));\n }\n\n private async _decompressZlib(compressed: Uint8Array): Promise<Uint8Array> {\n try {\n return await this._decompress(compressed, 'deflate');\n } catch (error) {\n if (error instanceof RangeError) throw error;\n return await this._decompress(compressed, 'deflate-raw');\n }\n }\n\n private async _decompress(compressed: Uint8Array, format: 'deflate' | 'deflate-raw'): Promise<Uint8Array> {\n const limit = Math.min(this._opts.kittySizeLimit, this._opts.pixelLimit * 4, this._opts.storageLimit * 1000000);\n let offsetIn = 0;\n // Bound inflation within one native transform before its output is budgeted.\n const source = new ReadableStream<BufferSource>({\n pull(controller) {\n if (offsetIn >= compressed.length) {\n controller.close();\n return;\n }\n const end = Math.min(offsetIn + 4096, compressed.length);\n controller.enqueue(new Uint8Array(compressed.subarray(offsetIn, end)));\n offsetIn = end;\n }\n });\n const reader = source.pipeThrough(new DecompressionStream(format)).getReader();\n const chunks: Uint8Array[] = [];\n let totalLength = 0;\n try {\n while (true) {\n const { done, value } = await reader.read();\n if (done) break;\n totalLength += value.byteLength;\n if (totalLength > limit) {\n await reader.cancel().catch(() => {});\n throw new RangeError('decompressed image exceeds byte limit');\n }\n chunks.push(value);\n }\n } finally {\n reader.releaseLock();\n }\n\n const result = new Uint8Array(totalLength);\n let offset = 0;\n for (const chunk of chunks) {\n result.set(chunk, offset);\n offset += chunk.length;\n }\n return result;\n }\n\n public get images(): ReadonlyMap<number, IKittyImageData> {\n return this._kittyStorage.images;\n }\n\n public get _kittyIdToStorageId(): ReadonlyMap<number, number> {\n return this._kittyStorage.kittyIdToStorageId;\n }\n\n public get pendingTransmissions(): ReadonlyMap<number, IPendingTransmission> {\n return this._pendingTransmissions;\n }\n}\n","/**\n * Copyright (c) 2026 The xterm.js authors. All rights reserved.\n * @license MIT\n *\n * Kitty graphics protocol types, constants, and parsing utilities.\n */\n\nimport type Base64Decoder from 'xterm-wasm-parts/lib/base64/Base64Decoder.wasm';\n\n// Kitty graphics protocol action types.\n// See: https://sw.kovidgoyal.net/kitty/graphics-protocol/#control-data-reference under key 'a'.\nexport const enum KittyAction {\n TRANSMIT = 't',\n TRANSMIT_DISPLAY = 'T',\n QUERY = 'q',\n PLACEMENT = 'p',\n DELETE = 'd'\n}\n\n// Kitty graphics protocol format types.\n// See: https://sw.kovidgoyal.net/kitty/graphics-protocol/#control-data-reference\nexport const enum KittyFormat {\n RGB = 24,\n RGBA = 32,\n PNG = 100\n}\n\n// Kitty graphics protocol compression types.\n// See: https://sw.kovidgoyal.net/kitty/graphics-protocol/#control-data-reference under key 'o'.\nexport const enum KittyCompression {\n NONE = '',\n ZLIB = 'z'\n}\n\n// Kitty graphics protocol control data keys.\n// See: https://sw.kovidgoyal.net/kitty/graphics-protocol/#control-data-reference\nexport const enum KittyKey {\n // Action to perform (t=transmit, T=transmit+display, q=query, p=placement, d=delete)\n ACTION = 'a',\n // Image format (24=RGB, 32=RGBA, 100=PNG)\n FORMAT = 'f',\n // Image ID for referencing stored images\n ID = 'i',\n // Image number (alternative to ID, terminal assigns ID)\n IMAGE_NUMBER = 'I',\n // Source image width in pixels\n WIDTH = 's',\n // Source image height in pixels\n HEIGHT = 'v',\n // The left edge (in pixels) of the image area to display\n X_OFFSET = 'x',\n // The top edge (in pixels) of the image area to display\n Y_OFFSET = 'y',\n // Width (in pixels) of the source rectangle to display\n SOURCE_WIDTH = 'w',\n // Height (in pixels) of the source rectangle to display\n SOURCE_HEIGHT = 'h',\n // Horizontal offset (in pixels) within the first cell\n X_PLACEMENT_OFFSET = 'X',\n // Vertical offset (in pixels) within the first cell\n Y_PLACEMENT_OFFSET = 'Y',\n // Number of terminal columns to display the image over\n COLUMNS = 'c',\n // Number of terminal rows to display the image over\n ROWS = 'r',\n // More data flag (1=more chunks coming, 0=final chunk)\n MORE = 'm',\n // Compression type (z=zlib). This is essential for chunking larger images.\n COMPRESSION = 'o',\n // Quiet mode (1=suppress OK responses, 2=suppress error responses)\n QUIET = 'q',\n // Cursor movement policy (0=move cursor after image, 1=don't move cursor)\n CURSOR_MOVEMENT = 'C',\n // Z-index for image layering (negative = behind text, 0+ = on top)\n Z_INDEX = 'z',\n // Transmission medium (d=direct, f=file, t=temp file, s=shared memory)\n TRANSMISSION = 't',\n // Delete selector (a/A=all, i/I=by id, c/C=at cursor, etc.) — only used when a=d\n DELETE_SELECTOR = 'd',\n // Placement ID for targeting specific placements\n PLACEMENT_ID = 'p'\n}\n\n// Pixel format constants\nexport const enum KittyPixelConstants {\n BYTES_PER_PIXEL_RGB = 3,\n BYTES_PER_PIXEL_RGBA = 4,\n ALPHA_OPAQUE = 255\n}\n\n// Parsed Kitty graphics command.\nexport interface IKittyCommand {\n action?: string;\n format?: number;\n id?: number;\n imageNumber?: number;\n width?: number;\n height?: number;\n x?: number;\n y?: number;\n sourceWidth?: number;\n sourceHeight?: number;\n xOffset?: number;\n yOffset?: number;\n columns?: number;\n rows?: number;\n more?: number;\n quiet?: number;\n cursorMovement?: number;\n zIndex?: number;\n transmission?: string;\n deleteSelector?: string;\n placementId?: number;\n compression?: string;\n payload?: string;\n}\n\n// Pending chunked transmission state.\n// Stores metadata from the first chunk while accumulating decoded payload data.\nexport interface IPendingTransmission {\n // The parsed command from the first chunk (contains action, format, dimensions, etc.)\n cmd: IKittyCommand;\n // Decoder used across chunked payloads\n decoder: Base64Decoder;\n // Total encoded (base64) bytes received across all chunks - for size limit enforcement\n totalEncodedSize: number;\n // Whether any chunk has failed to decode\n decodeError: boolean;\n}\n\n// Stored Kitty image data.\nexport interface IKittyImageData {\n id: number;\n // Decoded image data stored as Blob (off JS heap) to avoid 2GB heap limit\n data: Blob;\n width: number;\n height: number;\n format: 24 | 32 | 100;\n compression?: string;\n}\n\n// Parses Kitty graphics control data into a command object.\nexport function parseKittyCommand(data: string): IKittyCommand {\n const cmd: IKittyCommand = {};\n const parts = data.split(',');\n\n for (const part of parts) {\n const eqIdx = part.indexOf('=');\n if (eqIdx === -1) continue;\n\n const key = part.substring(0, eqIdx);\n const value = part.substring(eqIdx + 1);\n\n // Handle string keys first\n if (key === KittyKey.ACTION) {\n cmd.action = value;\n continue;\n }\n if (key === KittyKey.COMPRESSION) {\n cmd.compression = value;\n continue;\n }\n if (key === KittyKey.TRANSMISSION) {\n cmd.transmission = value;\n continue;\n }\n if (key === KittyKey.DELETE_SELECTOR) {\n cmd.deleteSelector = value;\n continue;\n }\n const numValue = parseInt(value, 10);\n switch (key) {\n case KittyKey.FORMAT: cmd.format = numValue; break;\n case KittyKey.ID: cmd.id = numValue; break;\n case KittyKey.IMAGE_NUMBER: cmd.imageNumber = numValue; break;\n case KittyKey.WIDTH: cmd.width = numValue; break;\n case KittyKey.HEIGHT: cmd.height = numValue; break;\n case KittyKey.X_OFFSET: cmd.x = numValue; break;\n case KittyKey.Y_OFFSET: cmd.y = numValue; break;\n case KittyKey.SOURCE_WIDTH: cmd.sourceWidth = numValue; break;\n case KittyKey.SOURCE_HEIGHT: cmd.sourceHeight = numValue; break;\n case KittyKey.X_PLACEMENT_OFFSET: cmd.xOffset = numValue; break;\n case KittyKey.Y_PLACEMENT_OFFSET: cmd.yOffset = numValue; break;\n case KittyKey.COLUMNS: cmd.columns = numValue; break;\n case KittyKey.ROWS: cmd.rows = numValue; break;\n case KittyKey.MORE: cmd.more = numValue; break;\n case KittyKey.QUIET: cmd.quiet = numValue; break;\n case KittyKey.CURSOR_MOVEMENT: cmd.cursorMovement = numValue; break;\n case KittyKey.Z_INDEX: cmd.zIndex = numValue; break;\n case KittyKey.PLACEMENT_ID: cmd.placementId = numValue; break;\n }\n }\n\n return cmd;\n}\n","/**\n * Copyright (c) 2026 The xterm.js authors. All rights reserved.\n * @license MIT\n */\n\nimport { IDisposable } from '@xterm/xterm';\nimport { ImageStorage } from '../ImageStorage';\nimport { ImageLayer, IAddImageOpts } from '../Types';\nimport { IKittyImageData } from './KittyGraphicsTypes';\n\n// Kitty-specific image storage controller.\n//\n// Wraps shared ImageStorage with kitty protocol semantics:\n// - tracks transmitted image payloads by kitty image id\n// - tracks kitty image id -> shared ImageStorage id mapping for displayed images\n// - mirrors shared-storage evictions into kitty maps\n// - applies protocol-level undisplayed-image eviction policy\nexport class KittyImageStorage implements IDisposable {\n private static readonly _maxStoredImages = 256;\n\n private _nextImageId = 1;\n private readonly _images: Map<number, IKittyImageData> = new Map();\n // TODO: Support multiple placements per image. The kitty spec identifies\n // placements by an (image id, placement id) pair — same i + different p\n // values should coexist, and same i + same p should replace the prior\n // placement. Currently we track only one storage entry per kitty image id,\n // so multiple placements of the same image overwrite each other. Fixing\n // this requires changing these maps to Map<number, Map<number, number>>\n // (kittyId → placementId → storageId) and updating addImage/deleteById\n // accordingly. The underlying shared ImageStorage would also need to\n // support multiple entries per logical image.\n private readonly _kittyIdToStorageId: Map<number, number> = new Map();\n private readonly _storageIdToKittyId: Map<number, number> = new Map();\n\n private readonly _previousOnImageDeleted: ((storageId: number) => void) | undefined;\n private readonly _wrappedOnImageDeleted: (storageId: number) => void;\n private readonly _handleStorageImageDeleted = (storageId: number): void => {\n const kittyId = this._storageIdToKittyId.get(storageId);\n if (kittyId !== undefined) {\n this._kittyIdToStorageId.delete(kittyId);\n this._storageIdToKittyId.delete(storageId);\n this._images.delete(kittyId);\n }\n };\n private _addImageOpts: IAddImageOpts = { scrolling: true, layer: 'top', zIndex: 0, cursorPos: 'iip' };\n\n constructor(\n private readonly _storage: ImageStorage\n ) {\n this._previousOnImageDeleted = this._storage.onImageDeleted;\n this._wrappedOnImageDeleted = (storageId: number) => {\n this._previousOnImageDeleted?.(storageId);\n this._handleStorageImageDeleted(storageId);\n };\n this._storage.onImageDeleted = this._wrappedOnImageDeleted;\n }\n\n public reset(): void {\n this._nextImageId = 1;\n this._images.clear();\n this._kittyIdToStorageId.clear();\n this._storageIdToKittyId.clear();\n }\n\n public dispose(): void {\n this.reset();\n if (this._storage.onImageDeleted === this._wrappedOnImageDeleted) {\n this._storage.onImageDeleted = this._previousOnImageDeleted;\n }\n }\n\n public storeImage(id: number | undefined, imageData: Omit<IKittyImageData, 'id'>): number {\n const imageId = id ?? this._nextImageId++;\n\n const oldStorageId = this._kittyIdToStorageId.get(imageId);\n if (oldStorageId !== undefined) {\n this._storage.deleteImage(oldStorageId);\n this._kittyIdToStorageId.delete(imageId);\n this._storageIdToKittyId.delete(oldStorageId);\n }\n\n if (!this._images.has(imageId) && this._images.size >= KittyImageStorage._maxStoredImages) {\n this._evictUndisplayedImages();\n }\n\n // Encoded images awaiting placement are outside ImageStorage's pixel budget.\n // Unplaced payloads are evicted first so a new upload cannot erase a visible\n // image while abandoned blobs still hold budget; placed ones go only when\n // that is not enough, because the byte cap is a hard bound. The new image is\n // always stored, so an oversized one overshoots by at most one payload\n // (itself bounded by kittySizeLimit) rather than being dropped after an OK ack.\n const byteLimit = this._storage.getLimit() * 1000000;\n this._images.delete(imageId);\n let retainedBytes = 0;\n for (const image of this._images.values()) retainedBytes += image.data.size;\n for (const evictPlaced of [false, true]) {\n for (const [oldestId, image] of this._images) {\n if (retainedBytes + imageData.data.size <= byteLimit) break;\n if (this._kittyIdToStorageId.has(oldestId) !== evictPlaced) continue;\n retainedBytes -= image.data.size;\n this.deleteById(oldestId);\n }\n }\n\n this._images.set(imageId, {\n ...imageData,\n id: imageId\n });\n return imageId;\n }\n\n public addImage(kittyId: number, image: HTMLCanvasElement | ImageBitmap, scrolling: boolean, layer: ImageLayer, zIndex: number): void {\n // Clean up stale reverse-mapping from a previous placement of the same\n // kitty image. The old shared-storage entry is kept (it may still be\n // visible on screen) but its reverse mapping is removed so that eviction\n // of the old entry won't incorrectly delete the kitty image data.\n const oldStorageId = this._kittyIdToStorageId.get(kittyId);\n if (oldStorageId !== undefined) {\n this._storageIdToKittyId.delete(oldStorageId);\n }\n this._addImageOpts.scrolling = scrolling;\n this._addImageOpts.layer = layer;\n this._addImageOpts.zIndex = zIndex;\n const storageId = this._storage.addImage(image, this._addImageOpts);\n this._kittyIdToStorageId.set(kittyId, storageId);\n this._storageIdToKittyId.set(storageId, kittyId);\n }\n\n public getImage(kittyId: number): IKittyImageData | undefined {\n return this._images.get(kittyId);\n }\n\n public deleteById(kittyId: number): void {\n this._images.delete(kittyId);\n const storageId = this._kittyIdToStorageId.get(kittyId);\n if (storageId !== undefined) {\n this._storage.deleteImage(storageId);\n this._kittyIdToStorageId.delete(kittyId);\n this._storageIdToKittyId.delete(storageId);\n }\n }\n\n public deleteAll(): void {\n this._images.clear();\n for (const storageId of this._kittyIdToStorageId.values()) {\n this._storage.deleteImage(storageId);\n }\n this._kittyIdToStorageId.clear();\n this._storageIdToKittyId.clear();\n }\n\n public get images(): ReadonlyMap<number, IKittyImageData> {\n return this._images;\n }\n\n public get kittyIdToStorageId(): ReadonlyMap<number, number> {\n return this._kittyIdToStorageId;\n }\n\n public get lastImageId(): number {\n return this._nextImageId - 1;\n }\n\n private _evictUndisplayedImages(): void {\n for (const [kittyId] of this._images) {\n if (this._images.size <= KittyImageStorage._maxStoredImages / 2) {\n break;\n }\n if (!this._kittyIdToStorageId.has(kittyId)) {\n this._images.delete(kittyId);\n }\n }\n }\n}\n","\"use strict\";\nObject.defineProperty(exports, \"__esModule\", { value: true });\n/**\n * Copyright (c) 2023, 2026 The xterm.js authors. All rights reserved.\n * @license MIT\n */\nconst inwasm_runtime_1 = require(\"inwasm-runtime\");\n/**\n * wasm base64 decoder.\n */\nconst wasmDecode = (0, inwasm_runtime_1.InWasm)(/*inwasm#828e69684093b2c6:rdef-start:\"decode\"*/{s:1,t:0,d:'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'}/*inwasm#828e69684093b2c6:rdef-end:\"decode\"*/);\n// SIMD version (speedup ~1.4x, not covered by tests yet)\n/*\nconst wasmDecode = InWasm({\n name: 'decode',\n type: OutputType.INSTANCE,\n mode: OutputMode.SYNC,\n srctype: 'Clang-C',\n imports: {\n env: { memory: new WebAssembly.Memory({ initial: 1 }) }\n },\n exports: {\n dec: () => 0,\n end: () => 0\n },\n compile: {\n switches: ['-msimd128', '-Wl,-z,stack-size=0', '-Wl,--stack-first']\n },\n code: `\n #include <wasm_simd128.h>\n typedef struct {\n unsigned int wp;\n unsigned int sp;\n unsigned int dp;\n unsigned int e_size;\n unsigned int dummy[4];\n unsigned char data[0];\n } State;\n\n unsigned int *D0 = (unsigned int *) ${P32.D0 * 4};\n unsigned int *D1 = (unsigned int *) ${P32.D1 * 4};\n unsigned int *D2 = (unsigned int *) ${P32.D2 * 4};\n unsigned int *D3 = (unsigned int *) ${P32.D3 * 4};\n State *state = (State *) ${P32.STATE * 4};\n\n #define packed_byte(x) wasm_i8x16_splat((char) x)\n #define packed_dword(x) wasm_i32x4_splat(x)\n #define masked(x, mask) wasm_v128_and(x, wasm_i32x4_splat(mask))\n\n __attribute__((noinline)) int dec() {\n unsigned int nsp = (state->wp - 1) & ~3;\n unsigned char *src = state->data + state->sp;\n unsigned char *end = state->data + nsp;\n unsigned char *dst = state->data + state->dp;\n unsigned int error = 0;\n\n v128_t err = wasm_i8x16_splat(0);\n unsigned char *end16 = state->data + (nsp & ~15);\n while (src < end16) {\n v128_t data = wasm_v128_load((v128_t *) src);\n\n // wasm-simd rewrite of http://0x80.pl/notesen/2016-01-17-sse-base64-decoding.html#vector-lookup-pshufb\n const v128_t higher_nibble = wasm_u32x4_shr(data, 4) & packed_byte(0x0f);\n const char linv = 1;\n const char hinv = 0;\n\n const v128_t lower_bound_LUT = wasm_i8x16_const(\n // order: 0 1 2 3 4 5 6 7 8 9 a b c d e f\n linv, linv, 0x2b, 0x30,\n 0x41, 0x50, 0x61, 0x70,\n linv, linv, linv, linv,\n linv, linv, linv, linv\n );\n const v128_t upper_bound_LUT = wasm_i8x16_const(\n // order: 0 1 2 3 4 5 6 7 8 9 a b c d e f\n hinv, hinv, 0x2b, 0x39,\n 0x4f, 0x5a, 0x6f, 0x7a,\n hinv, hinv, hinv, hinv,\n hinv, hinv, hinv, hinv\n );\n // the difference between the shift and lower bound\n const v128_t shift_LUT = wasm_i8x16_const(\n // order: 0 1 2 3 4 5 6 7 8 9 a b c d e f\n 0x00, 0x00, 0x3e - 0x2b, 0x34 - 0x30,\n 0x00 - 0x41, 0x0f - 0x50, 0x1a - 0x61, 0x29 - 0x70,\n 0x00, 0x00, 0x00, 0x00,\n 0x00, 0x00, 0x00, 0x00\n );\n\n const v128_t upper_bound = wasm_i8x16_swizzle(upper_bound_LUT, higher_nibble);\n const v128_t lower_bound = wasm_i8x16_swizzle(lower_bound_LUT, higher_nibble);\n\n const v128_t below = wasm_i8x16_lt(data, lower_bound);\n const v128_t above = wasm_i8x16_gt(data, upper_bound);\n const v128_t eq_2f = wasm_i8x16_eq(data, packed_byte(0x2f));\n\n // in_range = not (below or above) or eq_2f\n // outside = not in_range = below or above and not eq_2f (from deMorgan law)\n const v128_t outside = wasm_v128_andnot(eq_2f, above | below);\n err = wasm_v128_or(err, outside);\n\n const v128_t shift = wasm_i8x16_swizzle(shift_LUT, higher_nibble);\n const v128_t t0 = wasm_i8x16_add(data, shift);\n v128_t v = wasm_i8x16_add(t0, wasm_v128_and(eq_2f, packed_byte(-3)));\n\n // pack bytes\n const v128_t ca = masked(v, 0x003f003f);\n const v128_t db = masked(v, 0x3f003f00);\n const v128_t t00 = wasm_v128_or(wasm_u32x4_shr(db, 8), wasm_i32x4_shl(ca, 6));\n v128_t res = wasm_v128_or(wasm_u32x4_shr(t00, 16), wasm_i32x4_shl(t00, 12));\n res = wasm_i8x16_swizzle(res, wasm_i8x16_const(2, 1, 0, 6, 5, 4, 10, 9, 8, 14, 13, 12, 16, 16, 16, 16));\n\n wasm_v128_store((v128_t *) dst, res);\n dst += 12;\n src += 16;\n }\n //if (wasm_i8x16_bitmask(err) != 0) return -1;\n if (wasm_v128_any_true(err)) return -1;\n\n // operate on 4-byte blocks\n while (src < end) {\n error |= *((unsigned int *) dst) = D0[src[0]] | D1[src[1]] | D2[src[2]] | D3[src[3]];\n dst += 3;\n src += 4;\n }\n if (error >> 24) return -1;\n state->sp = nsp;\n state->dp = dst - state->data;\n return 0;\n }\n\n int end() {\n int rem = state->wp - state->sp;\n if (rem > 4 && dec()) return -1;\n rem = state->wp - state->sp;\n if (rem < 2) return -1;\n\n unsigned char *src = state->data + state->sp;\n if (rem == 4) {\n if (src[3] == 61) rem--;\n if (src[2] == 61) rem--;\n }\n unsigned int accu = D0[src[0]] | D1[src[1]];\n int dp = 1;\n if (rem > 2) {\n accu |= D2[src[2]];\n dp++;\n if (rem == 4) {\n accu |= D3[src[3]];\n dp++;\n }\n }\n if (accu >> 24) return -1;\n *((unsigned int *) (state->data + state->dp)) = accu;\n state->dp += dp;\n return 0;\n }\n `\n});\n*/\n// base64 map\nconst MAP = new Uint8Array('ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/'\n .split('')\n .map(el => el.charCodeAt(0)));\n// init decoder maps in LE order\nconst D = new Uint32Array(1024);\nD.fill(0xFF000000);\nfor (let i = 0; i < MAP.length; ++i)\n D[MAP[i]] = i << 2;\nfor (let i = 0; i < MAP.length; ++i)\n D[256 + MAP[i]] = i >> 4 | ((i << 4) & 0xFF) << 8;\nfor (let i = 0; i < MAP.length; ++i)\n D[512 + MAP[i]] = (i >> 2) << 8 | ((i << 6) & 0xFF) << 16;\nfor (let i = 0; i < MAP.length; ++i)\n D[768 + MAP[i]] = i << 16;\nconst EMPTY = new Uint8Array(0);\n/**\n * base64 stream decoder.\n *\n * Features / assumptions:\n * - lazy chunkwise decoding\n * - errors out on any non base64 chars (no support for NL formatted base64)\n * - decodes in wasm\n * - inplace decoding to save memory\n * - supports a keepSize for lazy memory release\n */\nclass Base64Decoder {\n /**\n * @param keepSize Keep the wasm instance below this limit when calling `release()`.\n * @param maxBytes Max allowed bytes to allocate.\n * @param initialBytes Initial bytes to allocate.\n */\n constructor(keepSize, maxBytes, initialBytes) {\n this._inst = null;\n this._ended = true;\n this._bytes = 0;\n this.keepSize = keepSize !== null && keepSize !== void 0 ? keepSize : 1048576 /* Bytes.KEEP */;\n this.maxBytes = maxBytes !== null && maxBytes !== void 0 ? maxBytes : 4294901760 /* Bytes.MAX */;\n this._bytes = initialBytes !== null && initialBytes !== void 0 ? initialBytes : 32768 /* Bytes.INITIAL */;\n if (this._bytes > this.maxBytes || this.maxBytes > 4294901760 /* Bytes.MAX */) {\n throw new Error('invalid byte settings');\n }\n }\n /**\n * Currently decoded bytes (borrowed).\n * Must be accessed before calling `release` or `init`.\n */\n get data8() {\n return this._inst ? this._d.subarray(0, this._m32[1282 /* P32.STATE_DP */]) : EMPTY;\n }\n /**\n * Release memory conditionally based on `keepSize`.\n * If memory gets released, also the wasm instance will be freed and recreated on next `init`,\n * otherwise the instance will be reused.\n */\n release() {\n if (!this._inst)\n return;\n if (this._bytes > this.keepSize) {\n this._inst = this._m32 = this._d = this._mem = null;\n }\n else {\n this._m32[1280 /* P32.STATE_WP */] = 0;\n this._m32[1281 /* P32.STATE_SP */] = 0;\n this._m32[1282 /* P32.STATE_DP */] = 0;\n }\n }\n /**\n * Initializes the decoder for new base64 data.\n * Must be called before doing any decoding attempts.\n * The method will either spawn a new wasm instance or grow\n * the needed memory of an existing instance.\n * @param maxBytes Max allowed bytes to allocate (overwrites ctor value).\n * @param initialBytes Initial bytes to allocate (overwrites ctor value).\n */\n init(maxBytes, initialBytes) {\n this.maxBytes = maxBytes !== null && maxBytes !== void 0 ? maxBytes : this.maxBytes;\n this._bytes = initialBytes !== null && initialBytes !== void 0 ? initialBytes : Math.min(this._bytes, this.maxBytes);\n if (this._bytes > this.maxBytes || this.maxBytes > 4294901760 /* Bytes.MAX */) {\n throw Error('invalid byte settings');\n }\n let m = this._m32;\n const bytes = this._bytes + 5152 /* Bytes._DATA_OFFSET */;\n if (!this._inst) {\n this._mem = new WebAssembly.Memory({ initial: Math.ceil(bytes / 65536) });\n this._inst = wasmDecode({ env: { memory: this._mem } });\n m = new Uint32Array(this._mem.buffer, 0);\n m.set(D, 256 /* P32.D0 */);\n this._d = new Uint8Array(this._mem.buffer, 5152 /* Bytes._DATA_OFFSET */);\n }\n else if (this._mem.buffer.byteLength < bytes) {\n this._mem.grow(Math.ceil((bytes - this._mem.buffer.byteLength) / 65536));\n m = new Uint32Array(this._mem.buffer, 0);\n this._d = new Uint8Array(this._mem.buffer, 5152 /* Bytes._DATA_OFFSET */);\n }\n m[1280 /* P32.STATE_WP */] = 0;\n m[1281 /* P32.STATE_SP */] = 0;\n m[1282 /* P32.STATE_DP */] = 0;\n this._m32 = m;\n this._ended = false;\n }\n /**\n * Realloc memory. Realloc only happens, if the requested\n * size doesn't fit in the current memory.\n * The new size will be capped by `maxBytes`.\n * @param requested Bytes to be stored.\n */\n _realloc(requested) {\n const needed = this._m32[1280 /* P32.STATE_WP */] + requested;\n if (this._bytes < needed) {\n if (needed > this.maxBytes) {\n return -3 /* DecodeStatus.SIZE_EXCEEDED */;\n }\n let newSize = this._bytes;\n while ((newSize *= 2) < needed) { }\n newSize = Math.min(newSize, this.maxBytes);\n if (newSize < needed) {\n return -3 /* DecodeStatus.SIZE_EXCEEDED */;\n }\n if (newSize + 5152 /* Bytes._DATA_OFFSET */ > this._mem.buffer.byteLength) {\n const addPages = Math.ceil((newSize + 5152 /* Bytes._DATA_OFFSET */ - this._mem.buffer.byteLength) / 65536);\n this._mem.grow(addPages);\n this._m32 = new Uint32Array(this._mem.buffer, 0);\n this._d = new Uint8Array(this._mem.buffer, 5152 /* Bytes._DATA_OFFSET */);\n }\n this._bytes = newSize;\n }\n return 0 /* DecodeStatus.OK */;\n }\n /**\n * Put bytes in `data` into the decoder.\n * Additionally decodes the payload, if it reached 2^17 bytes.\n * The return value indicates the type of issue.\n * @param data Bytes to be loaded.\n */\n put(data) {\n if (!this._inst || this._ended) {\n return -2 /* DecodeStatus.NOT_INITIALIZED */;\n }\n if (this._realloc(data.length)) {\n return -3 /* DecodeStatus.SIZE_EXCEEDED */;\n }\n const m = this._m32;\n this._d.set(data, m[1280 /* P32.STATE_WP */]);\n m[1280 /* P32.STATE_WP */] += data.length;\n // max chunk in input handler is 2^17, try to run in \"tandem mode\"\n return m[1280 /* P32.STATE_WP */] - m[1281 /* P32.STATE_SP */] >= 131072\n ? this._inst.exports.dec()\n : 0 /* DecodeStatus.OK */;\n }\n /**\n * End the current decoding.\n * Also decodes leftover payload from previous put calls.\n */\n end() {\n this._ended = true;\n return this._inst\n ? this._inst.exports.end()\n : -2 /* DecodeStatus.NOT_INITIALIZED */;\n }\n /**\n * Bytes loaded into the decoder.\n */\n get loadedBytes() {\n return this._inst\n ? this._m32[1280 /* P32.STATE_WP */]\n : 0;\n }\n /**\n * Free bytes to feed to the decoder.\n */\n get freeBytes() {\n return this._inst\n ? this.maxBytes - this._m32[1280 /* P32.STATE_WP */]\n : 0;\n }\n}\nexports.default = Base64Decoder;\n//# sourceMappingURL=Base64Decoder.wasm.js.map","\"use strict\";\nObject.defineProperty(exports, \"__esModule\", { value: true });\n/**\n * Copyright (c) 2023 The xterm.js authors. All rights reserved.\n * @license MIT\n */\nconst inwasm_runtime_1 = require(\"inwasm-runtime\");\nconst wasmQoiDecode = (0, inwasm_runtime_1.InWasm)(/*inwasm#459f9e1bfb80b1a8:rdef-start:\"qoi_decode\"*/{s:1,t:0,d:'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'}/*inwasm#459f9e1bfb80b1a8:rdef-end:\"qoi_decode\"*/);\nclass QoiDecoder {\n constructor(keepSize) {\n this.keepSize = keepSize;\n this.width = 0;\n this.height = 0;\n }\n decode(d) {\n this.width = d[4] << 24 | d[5] << 16 | d[6] << 8 | d[7];\n this.height = d[8] << 24 | d[9] << 16 | d[10] << 8 | d[11];\n const pixels = this.width * this.height;\n const ib = pixels * 4;\n const dl = d.length;\n /**\n * byte/offset calculation:\n * To save some memory we dont reserve full memory for decoded + encoded,\n * but place encoded at the end of decoded plus 50% security distance\n * to avoid reads before writes positions:\n *\n * encoded < decoded (good compression)\n * enc ####################\n * dec #######################################\n * ^ ^\n * DST_P CHUNK_P\n *\n * encoded > decoded (degenerated compression, should not happen)\n * enc ##############################\n * dec ####################\n * ^ ^\n * DST_P CHUNK_P\n *\n * There is still a chance for overlapping r/w positions in case the compressed\n * data has very different pixel progression, yet the 50% security distance\n * should deal with that, as QOI will bloat data by 25% at max (RGB -> OP byte + RGB).\n * Since we always assume RGBA at decoding stage, the possible bloat reduces to 20% at max.\n */\n const bytes = Math.max(ib, dl) + (Math.min(ib, dl) >> 1) + 4096;\n if (!this._inst) {\n this._mem = new WebAssembly.Memory({ initial: Math.ceil(bytes / 65536) });\n this._inst = wasmQoiDecode({ env: { memory: this._mem } });\n }\n else if (this._mem.buffer.byteLength < bytes) {\n this._mem.grow(Math.ceil((bytes - this._mem.buffer.byteLength) / 65536));\n this._d = null;\n }\n if (!this._d) {\n this._d = new Uint8Array(this._mem.buffer);\n }\n // put src data at the end of memory, also align to 256\n const chunkP = (this._mem.buffer.byteLength - dl) & ~0xFF;\n this._d.set(d, chunkP);\n this._inst.exports.dec(chunkP, dl, pixels);\n return this._d.subarray(1024 /* P8.DST_P */, 1024 /* P8.DST_P */ + ib);\n }\n release() {\n if (!this._inst)\n return;\n if (this._mem.buffer.byteLength > this.keepSize) {\n this._inst = this._d = this._mem = null;\n }\n }\n}\nexports.default = QoiDecoder;\n//# sourceMappingURL=QoiDecoder.wasm.js.map","\"use strict\";\n/**\n * Copyright (c) 2022, 2026 Joerg Breitbart\n * @license MIT\n */\nObject.defineProperty(exports, \"__esModule\", { value: true });\nexports.InWasm = InWasm;\nlet z = (s) => {\n if (Uint8Array.fromBase64)\n return Uint8Array.fromBase64(s);\n if (typeof Buffer !== 'undefined')\n return Buffer.from(s, 'base64');\n const b = atob(s);\n const r = new Uint8Array(b.length);\n for (let i = 0; i < r.length; ++i)\n r[i] = b.charCodeAt(i);\n return r;\n};\nfunction InWasm(def) {\n if (def.d) {\n const { t, s, d } = def;\n let b;\n let m;\n const W = WebAssembly;\n if (t === 0 /* OutputType.INSTANCE */) {\n if (s)\n return (e) => new W.Instance(m || (m = new W.Module(b || (b = z(d)))), e);\n return (e) => m\n ? W.instantiate(m, e)\n : W.instantiate(b || (b = z(d)), e).then(r => (m = r.module) && r.instance);\n }\n if (t === 1 /* OutputType.MODULE */) {\n if (s)\n return () => m || (m = new W.Module(b || (b = z(d))));\n return () => m\n ? Promise.resolve(m)\n : W.compile(b || (b = z(d))).then(r => m = r);\n }\n if (s)\n return () => b || (b = z(d));\n return () => Promise.resolve(b || (b = z(d)));\n }\n if (typeof _wasmCtx === 'undefined')\n throw new Error('must run \"inwasm\"');\n _wasmCtx.add(def);\n}\n//# sourceMappingURL=index.js.map","// The module cache\nvar __webpack_module_cache__ = {};\n\n// The require function\nfunction __webpack_require__(moduleId) {\n\t// Check if module is in cache\n\tvar cachedModule = __webpack_module_cache__[moduleId];\n\tif (cachedModule !== undefined) {\n\t\treturn cachedModule.exports;\n\t}\n\t// Create a new module (and put it into the cache)\n\tvar module = __webpack_module_cache__[moduleId] = {\n\t\t// no module.id needed\n\t\t// no module.loaded needed\n\t\texports: {}\n\t};\n\n\t// Execute the module function\n\t__webpack_modules__[moduleId].call(module.exports, module, module.exports, __webpack_require__);\n\n\t// Return the exports of the module\n\treturn module.exports;\n}\n\n","/**\n * Copyright (c) 2020 The xterm.js authors. All rights reserved.\n * @license MIT\n */\n\nimport type { ITerminalAddon, IDisposable } from '@xterm/xterm';\nimport type { ImageAddon as IImageApi } from '@xterm/addon-image';\nimport { Emitter, type IEvent } from 'common/Event';\nimport { IIPHandler } from './IIPHandler';\nimport { ImageRenderer } from './ImageRenderer';\nimport { ImageStorage, CELL_SIZE_DEFAULT } from './ImageStorage';\nimport { KittyGraphicsHandler } from './kitty/KittyGraphicsHandler';\nimport { KittyImageStorage } from './kitty/KittyImageStorage';\nimport { SixelHandler } from './SixelHandler';\nimport { SixelImageStorage } from './SixelImageStorage';\nimport { IIPImageStorage } from './IIPImageStorage';\nimport { ITerminalExt, IImageAddonOptions, IResetHandler } from './Types';\n\n\n/**\n * Document VT features provided by this addon.\n *\n * @vt: #E[Supported via @xterm/addon-image.] DCS SIXEL \"SIXEL Graphics\" \"DCS Ps ; Ps ; Ps ; q Pt ST\" \"Draw SIXEL image.\"\n *\n * Sixel support is provided by the addon @xterm/addon-image with these limitations:\n * - immediate coloring (no shared palette, allows high color settings of `img2sixel`)\n * - max. palette size of 4096 colors\n * - max. pixel width of 16K\n * - max. 25 MB per sixel sequence\n * - VT340 cursor positioning (begin of last sixel data row)\n *\n * See [addon readme](https://github.com/xtermjs/xterm.js/tree/master/addons/addon-image) for more details.\n *\n *\n * @vt: #E[Supported via @xterm/addon-image.] OSC 1337 \"iTerm2 Commands\" \"OSC 1337 ; Pt BEL\" \"Custom iTerm2 commands.\"\n *\n * Only the inline image protocol (IIP) is supported by the addon @xterm/addon-image with\n * the following limitations:\n * - sequence:\n * - format: `OSC 1337 ; File=inline=1 ; size=<unencoded size> ; ... : <base64 payload> BEL`\n * - size param must be set and payload may not exceed CEIL(size * 4 / 3)\n * - strict base64 handling as of RFC4648 §4 (standard alphabet, optional padding,\n * no separator bytes allowed)\n * - supported params: size, name, width, height, preserveAspectRatio\n * - image formats: PNG, JPEG and GIF\n * - no animation support (renders first image of a GIF)\n * - no multipart support\n * - VT340 cursor positioning (begin of last sixel data row)\n *\n * See [addon readme](https://github.com/xtermjs/xterm.js/tree/master/addons/addon-image)\n * and [iTerm2 IIP docs](https://iterm2.com/documentation-images.html) for more details.\n *\n *\n * @vt: #E[Supported via @xterm/addon-image.] APC KITTY_GRAPHICS \"Kitty Graphics\" \"APC G Pt ST\" \"Kitty Graphics Protocol.\"\n *\n * Kitty graphics support is provided by the addon @xterm/addon-image.\n * Note that while basic image output already works, this is still work in progress.\n */\n\n// default values of addon ctor options\nconst DEFAULT_OPTIONS: IImageAddonOptions = {\n enableSizeReports: true,\n pixelLimit: 16777216, // limit to 4096 * 4096 pixels\n sixelSupport: true,\n sixelScrolling: true,\n sixelPaletteLimit: 4096,\n sixelSizeLimit: 33554432,\n storageLimit: 128,\n showPlaceholder: true,\n iipSupport: true,\n iipSizeLimit: 33554432,\n kittySupport: true,\n kittySizeLimit: 33554432\n};\n\n// max palette size supported by the sixel lib (compile time setting)\nconst MAX_SIXEL_PALETTE_SIZE = 4096;\n\n// definitions for _xtermGraphicsAttributes sequence\nconst enum GaItem {\n COLORS = 1,\n SIXEL_GEO = 2,\n REGIS_GEO = 3\n}\nconst enum GaAction {\n READ = 1,\n SET_DEFAULT = 2,\n SET = 3,\n READ_MAX = 4\n}\nconst enum GaStatus {\n SUCCESS = 0,\n ITEM_ERROR = 1,\n ACTION_ERROR = 2,\n FAILURE = 3\n}\n\n\nexport class ImageAddon implements ITerminalAddon, IImageApi {\n private _opts: IImageAddonOptions;\n private _defaultOpts: IImageAddonOptions;\n private _storage: ImageStorage | undefined;\n private _renderer: ImageRenderer | undefined;\n private _disposables: IDisposable[] = [];\n private _terminal: ITerminalExt | undefined;\n private _handlers: Map<String, IResetHandler> = new Map();\n private readonly _onImageAdded = new Emitter<void>();\n public readonly onImageAdded: IEvent<void> = this._onImageAdded.event;\n\n constructor(opts?: Partial<IImageAddonOptions>) {\n this._opts = Object.assign({}, DEFAULT_OPTIONS, opts);\n this._defaultOpts = Object.assign({}, DEFAULT_OPTIONS, opts);\n }\n\n public dispose(): void {\n for (const handler of this._handlers.values()) handler.reset();\n for (const obj of this._disposables) {\n obj.dispose();\n }\n this._disposables.length = 0;\n this._handlers.clear();\n this._onImageAdded.dispose();\n }\n\n private _disposeLater(...args: IDisposable[]): void {\n for (const obj of args) {\n this._disposables.push(obj);\n }\n }\n\n public activate(terminal: ITerminalExt): void {\n this._terminal = terminal;\n\n // internal data structures\n this._renderer = new ImageRenderer(terminal);\n this._storage = new ImageStorage(terminal, this._renderer, this._opts);\n this._storage.onImageAdded = () => this._onImageAdded.fire();\n\n // enable size reports\n if (this._opts.enableSizeReports) {\n const windowOps = terminal.options.windowOptions ?? {};\n windowOps.getWinSizePixels = true;\n windowOps.getCellSizePixels = true;\n windowOps.getWinSizeChars = true;\n terminal.options.windowOptions = windowOps;\n }\n\n this._disposeLater(\n this._renderer,\n this._storage,\n\n // DECSET/DECRST/DA1/XTSMGRAPHICS handlers\n terminal.parser.registerCsiHandler({ prefix: '?', final: 'h' }, params => this._decset(params)),\n terminal.parser.registerCsiHandler({ prefix: '?', final: 'l' }, params => this._decrst(params)),\n terminal.parser.registerCsiHandler({ final: 'c' }, params => this._da1(params)),\n terminal.parser.registerCsiHandler({ prefix: '?', final: 'S' }, params => this._xtermGraphicsAttributes(params)),\n\n // render hook\n terminal.onRender(range => this._storage?.render(range)),\n\n /**\n * reset handlers covered:\n * - DECSTR\n * - RIS\n * - Terminal.reset()\n */\n terminal.parser.registerCsiHandler({ intermediates: '!', final: 'p' }, () => this.reset()),\n terminal.parser.registerEscHandler({ final: 'c' }, () => this.reset()),\n terminal._core._inputHandler.onRequestReset(() => this.reset()),\n\n // wipe canvas and delete alternate images on buffer switch\n terminal.buffer.onBufferChange(() => this._storage?.wipeAlternate()),\n\n // extend images to the right on resize\n terminal.onResize(metrics => this._storage?.viewportResize(metrics))\n );\n\n // SIXEL handler\n if (this._opts.sixelSupport) {\n const sixelStorage = new SixelImageStorage(this._storage!, this._opts, this._renderer!, terminal);\n const sixelHandler = new SixelHandler(this._opts, sixelStorage, terminal);\n this._handlers.set('sixel', sixelHandler);\n this._disposeLater(\n terminal._core._inputHandler._parser.registerDcsHandler({ final: 'q' }, sixelHandler)\n );\n }\n\n // iTerm IIP handler\n if (this._opts.iipSupport) {\n const iipStorage = new IIPImageStorage(this._storage!);\n const iipHandler = new IIPHandler(this._opts, this._renderer!, iipStorage, terminal);\n this._handlers.set('iip', iipHandler);\n this._disposeLater(\n terminal._core._inputHandler._parser.registerOscHandler(1337, iipHandler)\n );\n }\n\n // Kitty graphics handler\n if (this._opts.kittySupport) {\n const kittyStorage = new KittyImageStorage(this._storage!);\n const kittyHandler = new KittyGraphicsHandler(this._opts, this._renderer!, kittyStorage, terminal);\n this._handlers.set('kitty', kittyHandler);\n this._disposeLater(\n kittyStorage,\n kittyHandler,\n terminal._core._inputHandler._parser.registerApcHandler({ final: 'G' }, kittyHandler)\n );\n }\n }\n\n // Note: storageLimit is skipped here to not intoduce a surprising side effect.\n public reset(): boolean {\n // reset options customizable by sequences to defaults\n this._opts.sixelScrolling = this._defaultOpts.sixelScrolling;\n this._opts.sixelPaletteLimit = this._defaultOpts.sixelPaletteLimit;\n // also clear image storage\n this._storage?.reset();\n // reset protocol handlers\n for (const handler of this._handlers.values()) {\n handler.reset();\n }\n return false;\n }\n\n public get storageLimit(): number {\n return this._storage?.getLimit() || -1;\n }\n\n public set storageLimit(limit: number) {\n this._storage?.setLimit(limit);\n this._opts.storageLimit = limit;\n }\n\n public get storageUsage(): number {\n if (this._storage) {\n return this._storage.getUsage();\n }\n return -1;\n }\n\n public get showPlaceholder(): boolean {\n return this._opts.showPlaceholder;\n }\n\n public set showPlaceholder(value: boolean) {\n this._opts.showPlaceholder = value;\n this._renderer?.showPlaceholder(value);\n }\n\n public getImageAtBufferCell(x: number, y: number): HTMLCanvasElement | undefined {\n return this._storage?.getImageAtBufferCell(x, y);\n }\n\n public extractTileAtBufferCell(x: number, y: number): HTMLCanvasElement | undefined {\n return this._storage?.extractTileAtBufferCell(x, y);\n }\n\n private _report(s: string): void {\n this._terminal?._core.input(s, false);\n }\n\n private _decset(params: (number | number[])[]): boolean {\n for (let i = 0; i < params.length; ++i) {\n switch (params[i]) {\n case 80:\n this._opts.sixelScrolling = false;\n break;\n }\n }\n return false;\n }\n\n private _decrst(params: (number | number[])[]): boolean {\n for (let i = 0; i < params.length; ++i) {\n switch (params[i]) {\n case 80:\n this._opts.sixelScrolling = true;\n break;\n }\n }\n return false;\n }\n\n // overload DA to return something more appropriate\n private _da1(params: (number | number[])[]): boolean {\n if (params[0]) {\n return true;\n }\n // reported features:\n // 62 - VT220\n // 4 - SIXEL support\n // 9 - charsets\n // 22 - ANSI colors\n if (this._opts.sixelSupport) {\n this._report(`\\x1b[?62;4;9;22c`);\n return true;\n }\n return false;\n }\n\n /**\n * Implementation of xterm's graphics attribute sequence.\n *\n * Supported features:\n * - read/change palette limits (max 4096 by sixel lib)\n * - read SIXEL canvas geometry (reports current window canvas or\n * squared pixelLimit if canvas > pixel limit)\n *\n * Everything else is deactivated.\n */\n private _xtermGraphicsAttributes(params: (number | number[])[]): boolean {\n if (params.length < 2) {\n return true;\n }\n if (params[0] === GaItem.COLORS) {\n switch (params[1]) {\n case GaAction.READ:\n this._report(`\\x1b[?${params[0]};${GaStatus.SUCCESS};${this._opts.sixelPaletteLimit}S`);\n return true;\n case GaAction.SET_DEFAULT:\n this._opts.sixelPaletteLimit = this._defaultOpts.sixelPaletteLimit;\n this._report(`\\x1b[?${params[0]};${GaStatus.SUCCESS};${this._opts.sixelPaletteLimit}S`);\n // also reset protocol handlers for now\n for (const handler of this._handlers.values()) {\n handler.reset();\n }\n return true;\n case GaAction.SET:\n if (params.length > 2 && !(params[2] instanceof Array) && params[2] <= MAX_SIXEL_PALETTE_SIZE) {\n this._opts.sixelPaletteLimit = params[2];\n this._report(`\\x1b[?${params[0]};${GaStatus.SUCCESS};${this._opts.sixelPaletteLimit}S`);\n } else {\n this._report(`\\x1b[?${params[0]};${GaStatus.ACTION_ERROR}S`);\n }\n return true;\n case GaAction.READ_MAX:\n this._report(`\\x1b[?${params[0]};${GaStatus.SUCCESS};${MAX_SIXEL_PALETTE_SIZE}S`);\n return true;\n default:\n this._report(`\\x1b[?${params[0]};${GaStatus.ACTION_ERROR}S`);\n return true;\n }\n }\n if (params[0] === GaItem.SIXEL_GEO) {\n switch (params[1]) {\n // we only implement read and read_max here\n case GaAction.READ:\n let width = this._renderer?.dimensions?.css.canvas.width;\n let height = this._renderer?.dimensions?.css.canvas.height;\n if (!width || !height) {\n // for some reason we have no working image renderer\n // --> fallback to default cell size\n const cellSize = CELL_SIZE_DEFAULT;\n width = (this._terminal?.cols || 80) * cellSize.width;\n height = (this._terminal?.rows || 24) * cellSize.height;\n }\n if (width * height < this._opts.pixelLimit) {\n this._report(`\\x1b[?${params[0]};${GaStatus.SUCCESS};${width.toFixed(0)};${height.toFixed(0)}S`);\n } else {\n // if we overflow pixelLimit report that squared instead\n const x = Math.floor(Math.sqrt(this._opts.pixelLimit));\n this._report(`\\x1b[?${params[0]};${GaStatus.SUCCESS};${x};${x}S`);\n }\n return true;\n case GaAction.READ_MAX:\n // read_max returns pixelLimit as square area\n const x = Math.floor(Math.sqrt(this._opts.pixelLimit));\n this._report(`\\x1b[?${params[0]};${GaStatus.SUCCESS};${x};${x}S`);\n return true;\n default:\n this._report(`\\x1b[?${params[0]};${GaStatus.ACTION_ERROR}S`);\n return true;\n }\n }\n // exit with error on ReGIS or any other requests\n this._report(`\\x1b[?${params[0]};${GaStatus.ITEM_ERROR}S`);\n return true;\n 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|
||
\ No newline at end of file
|
||
diff --git a/lib/addon-image.mjs b/lib/addon-image.mjs
|
||
index 753a4f833c038a3f45802377dcb16a93695f2161..aca74ad0c769e8525bc5e4ab8cc6dda03959f760 100644
|
||
--- a/lib/addon-image.mjs
|
||
+++ b/lib/addon-image.mjs
|
||
@@ -14,5 +14,5 @@
|
||
* Copyright (c) Microsoft Corporation. All rights reserved.
|
||
* Licensed under the MIT License. See License.txt in the project root for license information.
|
||
*--------------------------------------------------------------------------------------------*/
|
||
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"}});var We=x(b=>{"use strict";Object.defineProperty(b,"__esModule",{value:!0});b.decodeAsync=b.decode=b.Decoder=b.DecoderAsync=void 0;var O=X(),f=Ke();function yt(r){if(typeof Buffer<"u")return Buffer.from(r,"base64");let e=atob(r),t=new Uint8Array(e.length);for(let i=0;i<t.length;++i)t[i]=e.charCodeAt(i);return t}var Ye=yt(f.LIMITS.BYTES),J,Ae=new Uint32Array,ye=class{constructor(){this.bandHandler=e=>1,this.modeHandler=e=>1}handle_band(e){return this.bandHandler(e)}mode_parsed(e){return this.modeHandler(e)}},St={memoryLimit:2048*65536,sixelColor:O.DEFAULT_FOREGROUND,fillColor:O.DEFAULT_BACKGROUND,palette:O.PALETTE_VT340_COLOR,paletteLimit:f.LIMITS.PALETTE_SIZE,truncate:!0};function qe(r){let e=new ye,t={env:{handle_band:e.handle_band.bind(e),mode_parsed:e.mode_parsed.bind(e)}};return WebAssembly.instantiate(J||Ye,t).then(i=>(J=J||i.module,new P(r,i.instance||i,e)))}b.DecoderAsync=qe;var P=class{constructor(e,t,i){if(this._PIXEL_OFFSET=f.LIMITS.MAX_WIDTH+4,this._canvas=Ae,this._bandWidths=[],this._maxWidth=0,this._minWidth=f.LIMITS.MAX_WIDTH,this._lastOffset=0,this._currentHeight=0,this._opts=Object.assign({},St,e),this._opts.paletteLimit>f.LIMITS.PALETTE_SIZE)throw new Error(`DecoderOptions.paletteLimit must not exceed ${f.LIMITS.PALETTE_SIZE}`);if(t)i.bandHandler=this._handle_band.bind(this),i.modeHandler=this._initCanvas.bind(this);else{let A=J||(J=new WebAssembly.Module(Ye));t=new WebAssembly.Instance(A,{env:{handle_band:this._handle_band.bind(this),mode_parsed:this._initCanvas.bind(this)}})}this._instance=t,this._wasm=this._instance.exports,this._chunk=new Uint8Array(this._wasm.memory.buffer,this._wasm.get_chunk_address(),f.LIMITS.CHUNK_SIZE),this._states=new Uint32Array(this._wasm.memory.buffer,this._wasm.get_state_address(),12),this._palette=new Uint32Array(this._wasm.memory.buffer,this._wasm.get_palette_address(),f.LIMITS.PALETTE_SIZE),this._palette.set(this._opts.palette),this._pSrc=new Uint32Array(this._wasm.memory.buffer,this._wasm.get_p0_address()),this._wasm.init(O.DEFAULT_FOREGROUND,0,this._opts.paletteLimit,0)}get _fillColor(){return this._states[0]}get _truncate(){return this._states[8]}get _rasterWidth(){return this._states[6]}get _rasterHeight(){return this._states[7]}get _width(){return this._states[2]?this._states[2]-4:0}get _height(){return this._states[3]}get _level(){return this._states[9]}get _mode(){return this._states[10]}get _paletteLimit(){return this._states[11]}_initCanvas(e){if(e===2){let t=this.width*this.height;if(t>this._canvas.length){if(this._opts.memoryLimit&&t*4>this._opts.memoryLimit)throw this.release(),new Error("image exceeds memory limit");this._canvas=new Uint32Array(t)}this._maxWidth=this._width}else if(e===1)if(this._level===2){let t=Math.min(this._rasterWidth,f.LIMITS.MAX_WIDTH)*this._rasterHeight;if(t>this._canvas.length){if(this._opts.memoryLimit&&t*4>this._opts.memoryLimit)throw this.release(),new Error("image exceeds memory limit");this._canvas=new Uint32Array(t)}}else this._canvas.length<65536&&(this._canvas=new Uint32Array(65536));return 0}_realloc(e,t){let i=e+t;if(i>this._canvas.length){if(this._opts.memoryLimit&&i*4>this._opts.memoryLimit)throw this.release(),new Error("image exceeds memory limit");let A=new Uint32Array(Math.ceil(i/65536)*65536);A.set(this._canvas),this._canvas=A}}_handle_band(e){let t=this._PIXEL_OFFSET,i=this._lastOffset;if(this._mode===2){let A=this.height-this._currentHeight,s=0;for(;s<6&&A>0;)this._canvas.set(this._pSrc.subarray(t*s,t*s+e),i+e*s),s++,A--;this._lastOffset+=e*s,this._currentHeight+=s}else if(this._mode===1){this._realloc(i,e*6),this._maxWidth=Math.max(this._maxWidth,e),this._minWidth=Math.min(this._minWidth,e);for(let A=0;A<6;++A)this._canvas.set(this._pSrc.subarray(t*A,t*A+e),i+e*A);this._bandWidths.push(e),this._lastOffset+=e*6,this._currentHeight+=6}return 0}get width(){return this._mode!==1?this._width:Math.max(this._maxWidth,this._wasm.current_width())}get height(){return this._mode!==1?this._height:this._wasm.current_width()?this._bandWidths.length*6+this._wasm.current_height():this._bandWidths.length*6}get palette(){return this._palette.subarray(0,this._paletteLimit)}get memoryUsage(){return this._canvas.byteLength+this._wasm.memory.buffer.byteLength+8*this._bandWidths.length}get properties(){return{width:this.width,height:this.height,mode:this._mode,level:this._level,truncate:!!this._truncate,paletteLimit:this._paletteLimit,fillColor:this._fillColor,memUsage:this.memoryUsage,rasterAttributes:{numerator:this._states[4],denominator:this._states[5],width:this._rasterWidth,height:this._rasterHeight}}}init(e=this._opts.fillColor,t=this._opts.palette,i=this._opts.paletteLimit,A=this._opts.truncate){this._wasm.init(this._opts.sixelColor,e,i,A?1:0),t&&this._palette.set(t.subarray(0,f.LIMITS.PALETTE_SIZE)),this._bandWidths.length=0,this._maxWidth=0,this._minWidth=f.LIMITS.MAX_WIDTH,this._lastOffset=0,this._currentHeight=0}decode(e,t=0,i=e.length){let A=t;for(;A<i;){let s=Math.min(i-A,f.LIMITS.CHUNK_SIZE);this._chunk.set(e.subarray(A,A+=s)),this._wasm.decode(0,s)}}decodeString(e,t=0,i=e.length){let A=t;for(;A<i;){let s=Math.min(i-A,f.LIMITS.CHUNK_SIZE);for(let n=0,a=A;n<s;++n,++a)this._chunk[n]=e.charCodeAt(a);A+=s,this._wasm.decode(0,s)}}get data32(){if(this._mode===0||!this.width||!this.height)return Ae;let e=this._wasm.current_width();if(this._mode===2){let t=this.height-this._currentHeight;if(t>0){let i=this._PIXEL_OFFSET,A=this._lastOffset,s=0;for(;s<6&&t>0;)this._canvas.set(this._pSrc.subarray(i*s,i*s+e),A+e*s),s++,t--;t&&this._canvas.fill(this._fillColor,A+e*s)}return this._canvas.subarray(0,this.width*this.height)}if(this._mode===1){if(this._minWidth===this._maxWidth){let s=!1;if(e)if(e!==this._minWidth)s=!0;else{let n=this._PIXEL_OFFSET,a=this._lastOffset;this._realloc(a,e*6);for(let o=0;o<6;++o)this._canvas.set(this._pSrc.subarray(n*o,n*o+e),a+e*o)}if(!s)return this._canvas.subarray(0,this.width*this.height)}let t=new Uint32Array(this.width*this.height);t.fill(this._fillColor);let i=0,A=0;for(let s=0;s<this._bandWidths.length;++s){let n=this._bandWidths[s];for(let a=0;a<6;++a)t.set(this._canvas.subarray(A,A+=n),i),i+=this.width}if(e){let s=this._PIXEL_OFFSET,n=this._wasm.current_height();for(let a=0;a<n;++a)t.set(this._pSrc.subarray(s*a,s*a+e),i+this.width*a)}return t}return Ae}get data8(){return new Uint8ClampedArray(this.data32.buffer,0,this.width*this.height*4)}release(){this._canvas=Ae,this._bandWidths.length=0,this._maxWidth=0,this._minWidth=f.LIMITS.MAX_WIDTH,this._wasm.init(O.DEFAULT_FOREGROUND,0,this._opts.paletteLimit,0)}};b.Decoder=P;function Lt(r,e){let t=new P(e);return t.init(),typeof r=="string"?t.decodeString(r):t.decode(r),{width:t.width,height:t.height,data32:t.data32,data8:t.data8}}b.decode=Lt;async function Tt(r,e){let t=await qe(e);return t.init(),typeof r=="string"?t.decodeString(r):t.decode(r),{width:t.width,height:t.height,data32:t.data32,data8:t.data8}}b.decodeAsync=Tt});function H(r){return{dispose:r}}var N=class{constructor(){this._disposables=new Set;this._isDisposed=!1}get isDisposed(){return this._isDisposed}add(e){return this._isDisposed?e.dispose():this._disposables.add(e),e}dispose(){if(!this._isDisposed){this._isDisposed=!0;for(let e of this._disposables)e.dispose();this._disposables.clear()}}clear(){for(let e of this._disposables)e.dispose();this._disposables.clear()}},k=class{constructor(){this._store=new N}dispose(){this._store.dispose()}_register(e){return this._store.add(e)}};k.None=Object.freeze({dispose(){}});var W=class{constructor(){this._isDisposed=!1}get value(){return this._isDisposed?void 0:this._value}set value(e){this._isDisposed||e===this._value||(this._value?.dispose(),this._value=e)}clear(){this.value=void 0}dispose(){this._isDisposed=!0,this._value?.dispose(),this._value=void 0}};var z=class{constructor(){this._listeners=[];this._disposed=!1}get event(){return this._event?this._event:(this._event=(e,t,i)=>{if(this._disposed)return H(()=>{});let A={fn:e,thisArgs:t};this._listeners=this._listeners.slice(),this._listeners.push(A);let s=H(()=>{let n=this._listeners.indexOf(A);n!==-1&&(this._listeners=this._listeners.slice(),this._listeners.splice(n,1))});return i&&(Array.isArray(i)?i.push(s):i.add(s)),s},this._event)}fire(e){if(this._disposed||!this._listeners.length)return;if(this._listeners.length===1){this._listeners[0].fn.call(this._listeners[0].thisArgs,e);return}let t=this._listeners;for(let i=0,A=t.length;i<A;++i)t[i].fn.call(t[i].thisArgs,e)}dispose(){this._disposed||(this._disposed=!0,this._listeners.length=0)}},ot;(A=>{function r(s,n){return s(a=>n.fire(a))}A.forward=r;function e(s,n){return(a,o,g)=>s(h=>a.call(o,n(h)),void 0,g)}A.map=e;function t(...s){return(n,a,o)=>{let g=new N;for(let h of s)g.add(h(I=>n.call(a,I)));return o&&(Array.isArray(o)?o.push(g):o.add(g)),g}}A.any=t;function i(s,n,a){return n(a),s(o=>n(o))}A.runAndSubscribe=i})(ot||={});var de=M(X());var D=class r extends k{constructor(t){super();this._terminal=t;this._layers=new Map;this._optionsRefresh=this._register(new W);this._oldOpen=this._terminal._core.open,this._terminal._core.open=i=>{this._oldOpen?.call(this._terminal._core,i),this._open()},this._terminal._core.screenElement&&this._open(),this._optionsRefresh.value=this._terminal._core.optionsService.onOptionChange(i=>{i==="fontSize"&&(this.rescaleCanvas(),this._renderService?.refreshRows(0,this._terminal.rows))}),this._register(H(()=>{this.removeLayerFromDom(),this.removeLayerFromDom("bottom"),this._terminal._core&&this._oldOpen&&(this._terminal._core.open=this._oldOpen,this._oldOpen=void 0),this._renderService&&this._oldSetRenderer&&(this._renderService.setRenderer=this._oldSetRenderer,this._oldSetRenderer=void 0),this._renderService=void 0,this._layers.clear(),this._placeholderBitmap?.close(),this._placeholderBitmap=void 0,this._placeholder=void 0}))}get canvas(){return this._layers.get("top")?.canvas}static createCanvas(t,i,A){let s=(t??document).createElement("canvas");return s.width=i|0,s.height=A|0,s}static createImageData(t,i,A,s){if(typeof ImageData!="function"){let n=t.createImageData(i,A);return s&&n.data.set(new Uint8ClampedArray(s,0,i*A*4)),n}return s?new ImageData(new Uint8ClampedArray(s,0,i*A*4),i,A):new ImageData(i,A)}static createImageBitmap(t){return typeof createImageBitmap!="function"?Promise.resolve(void 0):createImageBitmap(t)}showPlaceholder(t){t?!this._placeholder&&this.cellSize.height!==-1&&this._createPlaceHolder(Math.max(this.cellSize.height+1,24)):(this._placeholderBitmap?.close(),this._placeholderBitmap=void 0,this._placeholder=void 0),this._renderService?.refreshRows(0,this._terminal.rows)}get dimensions(){return this._terminal.dimensions}get cellSize(){return{width:this.dimensions?.css.cell.width||-1,height:this.dimensions?.css.cell.height||-1}}clearLines(t,i,A){let s=t*(this.dimensions?.css.cell.height||0),n=this.dimensions?.css.canvas.width||0,a=(i+1-t)*(this.dimensions?.css.cell.height||0);(!A||A==="top")&&this._layers.get("top")?.clearRect(0,s,n,a),(!A||A==="bottom")&&this._layers.get("bottom")?.clearRect(0,s,n,a)}clearAll(t){if(!t||t==="top"){let i=this._layers.get("top");i?.clearRect(0,0,i.canvas.width,i.canvas.height)}if(!t||t==="bottom"){let i=this._layers.get("bottom");i?.clearRect(0,0,i.canvas.width,i.canvas.height)}}draw(t,i,A,s,n=1){let a=this._layers.get(t.layer);if(!a)return;let{width:o,height:g}=this.cellSize;if(o===-1||g===-1)return;this._rescaleImage(t,o,g);let h=t.actual,I=Math.ceil(h.width/o),d=i%I*o,c=Math.floor(i/I)*g,l=A*o,E=s*g,p=n*o+d>h.width?h.width-d:n*o,u=c+g>h.height?h.height-c:g;a.drawImage(h,Math.floor(d),Math.floor(c),Math.ceil(p),Math.ceil(u),Math.floor(l),Math.floor(E),Math.ceil(p),Math.ceil(u))}extractTile(t,i){let{width:A,height:s}=this.cellSize;if(A===-1||s===-1)return;this._rescaleImage(t,A,s);let n=t.actual,a=Math.ceil(n.width/A),o=i%a*A,g=Math.floor(i/a)*s,h=A+o>n.width?n.width-o:A,I=g+s>n.height?n.height-g:s,d=r.createCanvas(this.document,h,I),c=d.getContext("2d");if(c)return c.drawImage(n,Math.floor(o),Math.floor(g),Math.floor(h),Math.floor(I),0,0,Math.floor(h),Math.floor(I)),d}drawPlaceholder(t,i,A=1){let s=this._layers.get("top");if(s){let{width:n,height:a}=this.cellSize;if(n===-1||a===-1||(this._placeholder?a>=this._placeholder.height&&this._createPlaceHolder(a+1):this._createPlaceHolder(Math.max(a+1,24)),!this._placeholder))return;s.drawImage(this._placeholderBitmap??this._placeholder,t*n,i*a%2?0:1,n*A,a,t*n,i*a,n*A,a)}}rescaleCanvas(){let t=this.dimensions?.css.canvas.width||0,i=this.dimensions?.css.canvas.height||0;for(let A of this._layers.values())(A.canvas.width!==t||A.canvas.height!==i)&&(A.canvas.width=t,A.canvas.height=i)}_rescaleImage(t,i,A){if(i===t.actualCellSize.width&&A===t.actualCellSize.height)return;let{width:s,height:n}=t.origCellSize;if(i===s&&A===n){t.actual=t.orig,t.actualCellSize.width=s,t.actualCellSize.height=n;return}let a=r.createCanvas(this.document,Math.ceil(t.orig.width*i/s),Math.ceil(t.orig.height*A/n)),o=a.getContext("2d");o&&(o.drawImage(t.orig,0,0,a.width,a.height),t.actual=a,t.actualCellSize.width=i,t.actualCellSize.height=A)}_open(){this._renderService=this._terminal._core._renderService,this._oldSetRenderer=this._renderService.setRenderer.bind(this._renderService),this._renderService.setRenderer=t=>{for(let i of[...this._layers.keys()])this.removeLayerFromDom(i);this._oldSetRenderer?.call(this._renderService,t)}}insertLayerToDom(t="top"){if(!this.document||!this._terminal._core.screenElement){console.warn("image addon: cannot insert output canvas to DOM, missing document or screenElement");return}if(this._layers.has(t))return;let i=r.createCanvas(this.document,this.dimensions?.css.canvas.width||0,this.dimensions?.css.canvas.height||0);i.classList.add(`xterm-image-layer-${t}`);let A=this._terminal._core.screenElement;A.style.isolation="isolate",t==="bottom"?(i.style.zIndex="-1",A.insertBefore(i,A.firstChild)):(i.style.zIndex="0",A.appendChild(i));let s=i.getContext("2d",{alpha:!0});if(!s){i.remove();return}this._layers.set(t,s),this.clearAll(t)}removeLayerFromDom(t="top"){let i=this._layers.get(t);i&&(i.canvas.remove(),this._layers.delete(t))}hasLayer(t){return this._layers.has(t)}_createPlaceHolder(t=24){this._placeholderBitmap?.close(),this._placeholderBitmap=void 0;let i=32,A=r.createCanvas(this.document,i,t),s=A.getContext("2d",{alpha:!1});if(!s)return;let n=r.createImageData(s,i,t),a=new Uint32Array(n.data.buffer),o=(0,de.toRGBA8888)(0,0,0),g=(0,de.toRGBA8888)(255,255,255);a.fill(o);for(let d=0;d<t;++d){let c=d%2,l=d*i;for(let E=0;E<i;E+=2)a[l+E+c]=g}s.putImageData(n,0,0);let h=screen.width+i-1&~(i-1)||4096;this._placeholder=r.createCanvas(this.document,h,t);let I=this._placeholder.getContext("2d",{alpha:!1});if(!I){this._placeholder=void 0;return}for(let d=0;d<h;d+=i)I.drawImage(A,d,0);r.createImageBitmap(this._placeholder).then(d=>this._placeholderBitmap=d)}get document(){return this._terminal._core._coreBrowserService?.window.document}};var w={width:7,height:14},G=class r{constructor(e=0,t=0,i=-1,A=-1){this.imageId=i;this.tileId=A;this._ext=0;this._urlId=0;this._ext=e,this._urlId=t}get ext(){return this._urlId?this._ext&-469762049|this.underlineStyle<<26:this._ext}set ext(e){this._ext=e}get underlineStyle(){return this._urlId?5:(this._ext&469762048)>>26}set underlineStyle(e){this._ext&=-469762049,this._ext|=e<<26&469762048}get underlineColor(){return this._ext&67108863}set underlineColor(e){this._ext&=-67108864,this._ext|=e&67108863}get underlineVariantOffset(){let e=(this._ext&3758096384)>>29;return e<0?e^4294967288:e}set underlineVariantOffset(e){this._ext&=536870911,this._ext|=e<<29&3758096384}get urlId(){return this._urlId}set urlId(e){this._urlId=e}clone(){return new r(this._ext,this._urlId,this.imageId,this.tileId)}isEmpty(){return this.underlineStyle===0&&this._urlId===0&&this.imageId===-1}},F=new G,Z=class{constructor(e,t,i){this._terminal=e;this._renderer=t;this._opts=i;this._images=new Map;this._lastId=0;this._lowestId=0;this._fullyCleared=!1;this._needsFullClear=!1;this._pixelLimit=25e5;try{this.setLimit(this._opts.storageLimit)}catch(A){A instanceof Error&&console.error(A.message),console.warn(`storageLimit is set to ${this.getLimit()} MB`)}this._viewportMetrics={cols:this._terminal.cols,rows:this._terminal.rows}}dispose(){this.reset()}reset(){for(let e of this._images.values())e.marker?.dispose();this._images.clear(),this._renderer.clearAll()}getLimit(){return this._pixelLimit*4/1e6}setLimit(e){if(e<.5||e>1e3)throw RangeError("invalid storageLimit, should be at least 0.5 MB and not exceed 1G");this._pixelLimit=e/4*1e6>>>0,this._evictOldest(0)}getUsage(){return this._getStoredPixels()*4/1e6}_getStoredPixels(){let e=0;for(let t of this._images.values())t.orig&&(e+=t.orig.width*t.orig.height,t.actual&&t.actual!==t.orig&&(e+=t.actual.width*t.actual.height));return e}_delImg(e){let t=this._images.get(e);t&&(this._images.delete(e),window.ImageBitmap&&t.orig instanceof ImageBitmap&&t.orig.close(),this.onImageDeleted?.(e))}wipeAlternate(){let e=[];for(let[t,i]of this._images.entries())i.bufferType==="alternate"&&(i.marker?.dispose(),e.push(t));for(let t of e)this._delImg(t);this._needsFullClear=!0,this._fullyCleared=!1}deleteImage(e){let t=this._images.get(e);t&&(t.marker?.dispose(),this._delImg(e))}addImage(e,t){this._evictOldest(e.width*e.height);let i=this._renderer.cellSize;(i.width===-1||i.height===-1)&&(i=w);let A=Math.ceil(e.width/i.width),s=Math.ceil(e.height/i.height),n=++this._lastId,a=this._terminal._core.buffer,o=this._terminal.cols,g=this._terminal.rows,h=a.x,I=a.y,d=h,c=0;t.scrolling||(a.x=0,a.y=0,d=0),this._terminal._core._inputHandler._dirtyRowTracker.markDirty(a.y);for(let u=0;u<s;++u){let C=a.lines.get(a.y+a.ybase);for(let Q=0;Q<A&&!(d+Q>=o);++Q)this._writeToCell(C,d+Q,n,u*A+Q),c++;if(t.scrolling)u<s-1&&this._terminal._core._inputHandler.lineFeed();else if(++a.y>=g)break;a.x=d}this._terminal._core._inputHandler._dirtyRowTracker.markDirty(a.y),t.scrolling?t.cursorPos==="iip"?a.x=Math.min(d+A,o):a.x=d:(a.x=h,a.y=I);let l=[];for(let[u,C]of this._images.entries())C.tileCount<1&&(C.marker?.dispose(),l.push(u));for(let u of l)this._delImg(u);let E=this._terminal.registerMarker(0);E?.onDispose(()=>{this._images.get(n)&&this._delImg(n)}),this._terminal.buffer.active.type==="alternate"&&this._evictOnAlternate();let p={orig:e,origCellSize:i,actual:e,actualCellSize:{...i},marker:E||void 0,tileCount:c,bufferType:this._terminal.buffer.active.type,layer:t.layer,zIndex:t.zIndex};return this._images.set(n,p),this.onImageAdded?.(),n}render(e){let t=!1,i=!1;for(let h of this._images.values())if(h.layer==="bottom"?i=!0:t=!0,t&&i)break;if(t&&!this._renderer.hasLayer("top")&&(this._renderer.insertLayerToDom("top"),!this._renderer.hasLayer("top")))return;if(i&&!this._renderer.hasLayer("bottom")&&this._renderer.insertLayerToDom("bottom"),this._renderer.rescaleCanvas(),!this._images.size){this._fullyCleared||(this._renderer.clearAll(),this._fullyCleared=!0,this._needsFullClear=!1),this._renderer.hasLayer("top")&&this._renderer.removeLayerFromDom("top"),this._renderer.hasLayer("bottom")&&this._renderer.removeLayerFromDom("bottom");return}!t&&this._renderer.hasLayer("top")&&(this._renderer.clearAll("top"),this._renderer.removeLayerFromDom("top")),!i&&this._renderer.hasLayer("bottom")&&(this._renderer.clearAll("bottom"),this._renderer.removeLayerFromDom("bottom")),this._needsFullClear&&(this._renderer.clearAll(),this._fullyCleared=!0,this._needsFullClear=!1);let{start:A,end:s}=e,n=this._terminal._core.buffer,a=this._terminal._core.cols;this._renderer.clearLines(A,s);let o=[],g=[];for(let h=A;h<=s;++h){let I=n.lines.get(h+n.ydisp);if(!I)return;for(let d=0;d<a;++d)if(I.getBg(d)&268435456){let c=I._extendedAttrs[d]??F,l=c.imageId;if(l===void 0||l===-1)continue;let E=this._images.get(l);if(c.tileId!==-1){let p=c.tileId,u=d,C=1;for(;++d<a&&I.getBg(d)&268435456&&(c=I._extendedAttrs[d]??F)&&c.imageId===l&&c.tileId===p+C;)C++;d--,E?E.actual&&o.push({imgSpec:E,tileId:p,col:u,row:h,count:C}):this._opts.showPlaceholder&&g.push({col:u,row:h,count:C}),this._fullyCleared=!1}}}o.sort((h,I)=>h.imgSpec.zIndex-I.imgSpec.zIndex);for(let h of g)this._renderer.drawPlaceholder(h.col,h.row,h.count);for(let h of o)this._renderer.draw(h.imgSpec,h.tileId,h.col,h.row,h.count)}viewportResize(e){if(!this._images.size){this._viewportMetrics=e;return}if(this._viewportMetrics.cols>=e.cols){this._viewportMetrics=e;return}let t=this._terminal._core.buffer,i=t.lines.length,A=this._viewportMetrics.cols-1;for(let s=0;s<i;++s){let n=t.lines.get(s);if(n.getBg(A)&268435456){let a=n._extendedAttrs[A]??F,o=a.imageId;if(o===void 0||o===-1)continue;let g=this._images.get(o);if(!g)continue;let h=Math.ceil((g.actual?.width||0)/g.actualCellSize.width);if(a.tileId%h+1>=h)continue;let I=!1;for(let l=A+1;l>e.cols;++l)if(n._data[l*3+0]&4194303){I=!0;break}if(I)continue;let d=Math.min(e.cols,h-a.tileId%h+A),c=a.tileId;for(let l=A+1;l<d;++l)this._writeToCell(n,l,o,++c),g.tileCount++}}this._viewportMetrics=e}getImageAtBufferCell(e,t){let A=this._terminal._core.buffer.lines.get(t);if(A&&A.getBg(e)&268435456){let s=A._extendedAttrs[e]??F;if(s.imageId&&s.imageId!==-1){let n=this._images.get(s.imageId)?.orig;if(window.ImageBitmap&&n instanceof ImageBitmap){let a=D.createCanvas(window.document,n.width,n.height);return a.getContext("2d")?.drawImage(n,0,0,n.width,n.height),a}return n}}}extractTileAtBufferCell(e,t){let A=this._terminal._core.buffer.lines.get(t);if(A&&A.getBg(e)&268435456){let s=A._extendedAttrs[e]??F;if(s.imageId&&s.imageId!==-1&&s.tileId!==-1){let n=this._images.get(s.imageId);if(n)return this._renderer.extractTile(n,s.tileId)}}}_evictOldest(e){let t=this._getStoredPixels(),i=t;for(;this._pixelLimit<i+e&&this._images.size;){let A=this._images.get(++this._lowestId);A&&A.orig&&(i-=A.orig.width*A.orig.height,A.actual&&A.orig!==A.actual&&(i-=A.actual.width*A.actual.height),A.marker?.dispose(),this._delImg(this._lowestId))}return t-i}_writeToCell(e,t,i,A){if(e._data[t*3+2]&268435456){let s=e._extendedAttrs[t];if(s){if(s.imageId!==void 0){let n=this._images.get(s.imageId);n&&n.tileCount--,s.imageId=i,s.tileId=A;return}e._extendedAttrs[t]=new G(s.ext,s.urlId,i,A);return}}e._data[t*3+2]|=268435456,e._extendedAttrs[t]=new G(0,0,i,A)}_evictOnAlternate(){for(let i of this._images.values())i.bufferType==="alternate"&&(i.tileCount=0);let e=this._terminal._core.buffer;for(let i=0;i<this._terminal.rows;++i){let A=e.lines.get(i);if(A){for(let s=0;s<this._terminal.cols;++s)if(A._data[s*3+2]&268435456){let n=A._extendedAttrs[s]?.imageId;if(n){let a=this._images.get(n);a&&a.tileCount++}}}}let t=[];for(let[i,A]of this._images.entries())A.bufferType==="alternate"&&!A.tileCount&&(A.marker?.dispose(),t.push(i));for(let i of t)this._delImg(i)}};var Ue=M(ue()),Oe=M(Re());function j(r){let e="";for(let t=0;t<r.length;++t)e+=String.fromCharCode(r[t]);return e}function pe(r){let e=0;for(let t=0;t<r.length;++t){if(r[t]<48||r[t]>57)throw new Error("illegal char");e=e*10+r[t]-48}return e}function ke(r){let e=j(r);if(!e.match(/^((auto)|(\d+?((px)|(%)){0,1}))$/))throw new Error("illegal size");return e}function wt(r){if(typeof Buffer<"u")return Buffer.from(j(r),"base64").toString();let e=atob(j(r)),t=new Uint8Array(e.length);for(let i=0;i<t.length;++i)t[i]=e.charCodeAt(i);return new TextDecoder().decode(t)}var Ne={inline:pe,size:pe,name:wt,width:ke,height:ke,preserveAspectRatio:pe},He=[70,105,108,101],Fe=[77,117,108,116,105,112,97,114,116,70,105,108,101],Be=[70,105,108,101,80,97,114,116],fe=[70,105,108,101,69,110,100],Qe=[82,101,112,111,114,116,67,101,108,108,83,105,122,101],De=1024,V=class{constructor(){this.state=0;this._buffer=new Uint32Array(De);this._position=0;this._key="";this.fields={}}reset(){this._buffer.fill(0),this.state=0,this._position=0,this.fields={},this._key=""}end(){if(this.state===0){if(this._position===fe.length){for(let e=0;e<fe.length;++e)if(this._buffer[e]!==fe[e])return this._a();return this.fields.type=4,this.state=4,0}if(this._position===Qe.length){for(let e=0;e<Qe.length;++e)if(this._buffer[e]!==Qe[e])return this._a();return this.fields.type=5,this.state=4,0}return this._a()}return this.state===4?0:this.state===3&&this.fields.type===2?this._storeValue(this._position)?(this.state=4,0):this._a():this._a()}parse(e,t,i){let A=this.state,s=this._position,n=this._buffer;if(A===1||A===4||A===0&&s>14)return-1;for(let a=t;a<i;++a){let o=e[a];switch(o){case 59:if(!this._storeValue(s))return this._a();A=2,s=0;break;case 61:if(A===0){if(n[0]===70){let g=0;for(;g<He.length;++g)if(n[g]!==He[g])return this._a();if(this.fields.type=1,s===Be.length){for(;g<Be.length;++g)if(n[g]!==Be[g])return this._a();return this.fields.type=3,this.state=4,a+1}}else if(n[0]===77){for(let g=0;g<Fe.length;++g)if(n[g]!==Fe[g])return this._a();this.fields.type=2}else return this._a();A=2,s=0}else if(A===2){if(!this._storeKey(s))return this._a();A=3,s=0}else if(A===3){if(s>=De)return this._a();n[s++]=o}break;case 58:return A===3&&!this._storeValue(s)?this._a():(this.state=4,a+1);default:if(s>=De)return this._a();n[s++]=o}}return this.state=A,this._position=s,-2}_a(){return this.fields.type=0,this.state=1,-1}_storeKey(e){let t=j(this._buffer.subarray(0,e));return t?(this._key=t,this.fields[t]=null,!0):!1}_storeValue(e){if(this._key){try{let t=this._buffer.slice(0,e);this.fields[this._key]=Ne[this._key]?Ne[this._key](t):t}catch{return!1}return!0}return!1}};var L={mime:"unsupported",width:0,height:0};function Ge(r){if(r.length<32)return L;let e=new Uint32Array(r.buffer,r.byteOffset,8);if(e[0]===1196314761&&e[1]===169478669&&e[3]===1380206665)return{mime:"image/png",width:r[16]<<24|r[17]<<16|r[18]<<8|r[19],height:r[20]<<24|r[21]<<16|r[22]<<8|r[23]};if(r[0]===255&&r[1]===216&&r[2]===255){let[t,i]=bt(r);return{mime:"image/jpeg",width:t,height:i}}if(e[0]===944130375&&(r[4]===55||r[4]===57)&&r[5]===97)return{mime:"image/gif",width:r[7]<<8|r[6],height:r[9]<<8|r[8]};if(e[0]===1718185841)return{mime:"image/qoi",width:r[4]<<24|r[5]<<16|r[6]<<8|r[7],height:r[8]<<24|r[9]<<16|r[10]<<8|r[11]};if(e[0]===1179011410&&e[2]===1346520407&&(e[3]&16777215)===3690582){switch(r[15]){case 88:return{mime:"image/webp",width:(r[24]|r[25]<<8|r[26]<<16)+1,height:(r[27]|r[28]<<8|r[29]<<16)+1};case 76:if(r[20]!==47)return L;let t=r[21]|r[22]<<8|r[23]<<16|r[24]<<24;return{mime:"image/webp",width:(t&16383)+1,height:(t>>>14&16383)+1};case 32:return r[23]!==157||r[24]!==1||r[25]!==42?L:{mime:"image/webp",width:(r[26]|r[27]<<8)&16383,height:(r[28]|r[29]<<8)&16383}}return L}if(e[1]===1887007846&&(e[2]===1718187617||e[2]===1936291425)){let t=-1,i=Math.min(r.length-16,1024);for(let A=8;A<i;A++)if(r[A]===105&&r[A+1]===115&&r[A+2]===112&&r[A+3]===101){t=A;break}if(t!==-1){let A=r[t+8]<<24|r[t+9]<<16|r[t+10]<<8|r[t+11],s=r[t+12]<<24|r[t+13]<<16|r[t+14]<<8|r[t+15];if(A>0&&s>0)return{mime:"image/avif",width:A,height:s}}return L}return L}function bt(r){let e=r.length,t=4,i=r[t]<<8|r[t+1];for(;;){if(t+=i,t>=e)return[0,0];if(r[t]!==255)return[0,0];if(r[t+1]===192||r[t+1]===194)return t+8<e?[r[t+7]<<8|r[t+8],r[t+5]<<8|r[t+6]]:[0,0];t+=2,i=r[t]<<8|r[t+1]}}var we={type:0,name:"Unnamed file",size:0,width:"auto",height:"auto",preserveAspectRatio:1,inline:0},$=class{constructor(e,t,i,A){this._opts=e;this._renderer=t;this._storage=i;this._coreTerminal=A;this._aborted=!1;this._hp=new V;this._header=we;this._isMultipart=!1;this._abortMulti=!1;let s=Math.ceil(this._opts.iipSizeLimit*4/3),n=Math.min(1048576,s);this._dec=new Ue.default(4194304,s,n),this._qoiDec=new Oe.default(4194304)}reset(){this._hp.reset(),this._dec.release(),this._qoiDec.release()}start(){this._aborted=!1,this._hp.reset()}put(e,t,i){if(!this._aborted)if(this._hp.state===4)this._dec.put(e.subarray(t,i))!==0&&(this._dec.release(),this._aborted=!0);else{let A=this._hp.parse(e,t,i);if(A===-1){this._aborted=!0;return}if(A>0){if(this._hp.fields.type===1){if(this._isMultipart&&(this._isMultipart=!1,this._abortMulti=!1,this._dec.release()),this._header=Object.assign({},we,this._hp.fields),!this._header.inline){this._aborted=!0;return}this._dec.init()}else if(this._abortMulti){this._aborted=!0;return}this._dec.put(e.subarray(A,i))!==0&&(this._dec.release(),this._aborted=!0,this._isMultipart&&(this._abortMulti=!0))}}}end(e){if(this._aborted||this._hp.state!==4&&this._hp.end())return!0;let t=this._hp.fields.type;if(t===3)return!0;if(t===5){let o=w.width,g=w.height;this._renderer.dimensions&&(o=this._renderer.dimensions.css.canvas.width/this._coreTerminal.cols,g=this._renderer.dimensions.css.canvas.height/this._coreTerminal.rows);let h=this._coreTerminal._core._coreBrowserService?.dpr??1,I=`\x1B]1337;ReportCellSize=${g.toFixed(3)};${o.toFixed(3)};${h.toFixed(3)}\x1B\\`;return this._coreTerminal.input(I,!1),!0}if(t===2)return this._header=Object.assign({},we,this._hp.fields),this._isMultipart=!0,this._abortMulti=!1,this._dec.release(),this._dec.init(),!0;if(t===4&&(!this._isMultipart||(this._isMultipart=!1,this._abortMulti||this._header.type!==2)))return!0;let i=0,A=0,s,n=L;if((s=e)&&((s=!this._dec.end())?(n=Ge(this._dec.data8),(s=n.mime!=="unsupported")?(i=n.width,A=n.height,(s=i&&A&&i*A<this._opts.pixelLimit)?([i,A]=this._resize(i,A).map(Math.floor),s=i&&A&&i*A<this._opts.pixelLimit):console.warn(`IIP: image dimension issue ${n.width}x${n.height}`)):console.warn("IIP: unsupported image type")):console.warn("IIP: error during BASE64 decoding")),!s)return this._dec.release(),!0;let a;if(n.mime==="image/qoi"){let o=this._qoiDec.decode(this._dec.data8);if(a=new ImageData(new Uint8ClampedArray(o.buffer,o.byteOffset,o.byteLength),this._qoiDec.width,this._qoiDec.height),this._qoiDec.release(),i===this._qoiDec.width&&A===this._qoiDec.height){this._dec.release();let g=D.createCanvas(void 0,this._qoiDec.width,this._qoiDec.height);return g.getContext("2d")?.putImageData(a,0,0),this._storage.addImage(g),!0}}else a=new Blob([this._dec.data8],{type:n.mime});return this._dec.release(),createImageBitmap(a,{resizeWidth:i,resizeHeight:A}).then(o=>(this._storage.addImage(o),!0)).catch(o=>(console.warn(`IIP: decoding error ${n.mime} ${n.width}x${n.height}`,o),!0))}_resize(e,t){let i=this._renderer.dimensions?.css.cell.width||w.width,A=this._renderer.dimensions?.css.cell.height||w.height,s=this._renderer.dimensions?.css.canvas.width||i*this._coreTerminal.cols,n=this._renderer.dimensions?.css.canvas.height||A*this._coreTerminal.rows,a=this._dim(this._header.width,s,i),o=this._dim(this._header.height,n,A);if(!a&&!o){let g=s/e,h=(n-A)/t,I=Math.min(g,h);return I<1?[e*I,t*I]:[e,t]}return a?this._header.preserveAspectRatio||!a||!o?[a,t*a/e]:[a,o]:[e*o/t,o]}_dim(e,t,i){return e==="auto"?0:e.endsWith("%")?parseInt(e.slice(0,-1),10)*t/100:e.endsWith("px")?parseInt(e.slice(0,-2),10):parseInt(e,10)*i}};var Pe=M(ue());function be(r){let e={},t=r.split(",");for(let i of t){let A=i.indexOf("=");if(A===-1)continue;let s=i.substring(0,A),n=i.substring(A+1);if(s==="a"){e.action=n;continue}if(s==="o"){e.compression=n;continue}if(s==="t"){e.transmission=n;continue}if(s==="d"){e.deleteSelector=n;continue}let a=parseInt(n,10);switch(s){case"f":e.format=a;break;case"i":e.id=a;break;case"I":e.imageNumber=a;break;case"s":e.width=a;break;case"v":e.height=a;break;case"x":e.x=a;break;case"y":e.y=a;break;case"w":e.sourceWidth=a;break;case"h":e.sourceHeight=a;break;case"X":e.xOffset=a;break;case"Y":e.yOffset=a;break;case"c":e.columns=a;break;case"r":e.rows=a;break;case"m":e.more=a;break;case"q":e.quiet=a;break;case"C":e.cursorMovement=a;break;case"z":e.zIndex=a;break;case"p":e.placementId=a;break}}return e}var Je=0,ee=class{constructor(e,t,i,A){this._opts=e;this._renderer=t;this._kittyStorage=i;this._coreTerminal=A;this._aborted=!1;this._decodeError=!1;this._activeDecoder=null;this._inControlData=!0;this._controlData=new Uint32Array(512);this._controlLength=0;this._encodedSizeLimit=0;this._totalEncodedSize=0;this._parsedCommand=null;this._pendingTransmissions=new Map;this._maxEncodedBytes=Math.ceil(this._opts.kittySizeLimit*4/3),this._initialEncodedBytes=Math.min(4194304,this._maxEncodedBytes)}reset(){this._cleanupAllPending(),this._activeDecoder&&(this._activeDecoder.release(),this._activeDecoder=null),this._kittyStorage.reset()}dispose(){this.reset()}_removePendingEntry(e){this._pendingTransmissions.delete(e),this._lastPendingKey===e&&(this._lastPendingKey=void 0)}_cleanupAllPending(){for(let e of this._pendingTransmissions.values())e.decoder.release();this._pendingTransmissions.clear(),this._lastPendingKey=void 0}start(){this._aborted=!1,this._decodeError=!1,this._inControlData=!0,this._controlLength=0,this._parsedCommand=null,this._encodedSizeLimit=this._maxEncodedBytes,this._totalEncodedSize=0,this._activeDecoder=null}put(e,t,i){if(!this._aborted)if(!this._inControlData)this._streamPayload(e,t,i);else{let A=i;for(let n=t;n<i;n++)if(e[n]===59){this._inControlData=!1,A=n;break}let s=A-t;if(this._controlLength+s>512){this._aborted=!0;return}if(this._controlData.set(e.subarray(t,A),this._controlLength),this._controlLength+=s,!this._inControlData){if(this._parsedCommand=be(this._parseControlDataString()),this._parsedCommand.id!==void 0&&this._parsedCommand.imageNumber!==void 0){this._sendResponse(this._parsedCommand.id,"EINVAL:cannot specify both i and I keys",this._parsedCommand.quiet??0),this._aborted=!0;return}if(this._parsedCommand.action==="d")return;let n=A+1;n<i&&this._streamPayload(e,n,i)}}}_streamPayload(e,t,i){if(this._aborted)return;let A=this._parsedCommand?.id??this._lastPendingKey??0,s=this._pendingTransmissions.get(A),n=s?.totalEncodedSize??0;if(this._totalEncodedSize+=i-t,n+this._totalEncodedSize>this._encodedSizeLimit){let o=this._activeDecoder??s?.decoder;o&&o.release(),this._activeDecoder=null,s&&this._removePendingEntry(A),this._aborted=!0;return}this._decodeError||(s?.decoder&&!this._activeDecoder&&(this._activeDecoder=s.decoder),this._activeDecoder||(this._activeDecoder=new Pe.default(4194304,this._maxEncodedBytes,this._initialEncodedBytes),this._activeDecoder.init()),this._activeDecoder.put(e.subarray(t,i))!==Je&&(this._activeDecoder.release(),this._activeDecoder=null,this._decodeError=!0,s&&this._removePendingEntry(A)))}end(e){if(this._aborted||!e)return this._activeDecoder&&(this._activeDecoder.release(),this._activeDecoder=null),!0;if(this._inControlData)return this._handleNoPayloadCommand();let t=this._parsedCommand;if(t.action==="d")return this._handleDelete(t);let i=t.id??this._lastPendingKey??0,A=t.more===1,s=this._pendingTransmissions.get(i);if(A)return this._activeDecoder&&(s?(s.totalEncodedSize+=this._totalEncodedSize,s.decodeError=s.decodeError||this._decodeError):this._pendingTransmissions.set(i,{cmd:{...t},decoder:this._activeDecoder,totalEncodedSize:this._totalEncodedSize,decodeError:this._decodeError}),this._lastPendingKey=i,this._activeDecoder=null),!0;s&&(this._lastPendingKey=void 0);let n=this._decodeError,a=t,o=this._activeDecoder;s&&(a=s.cmd,o=s.decoder,n=n||s.decodeError,this._pendingTransmissions.delete(i));let g=new Uint8Array(0);o&&(o.end()!==Je&&(n=!0),g=o.data8),this._activeDecoder=null;let h=this._handleCommandWithBytesAndCmd(a,g,n);return o&&o.release(),h}_parseControlDataString(){let e="";for(let t=0;t<this._controlLength;t++)e+=String.fromCodePoint(this._controlData[t]);return e}_handleNoPayloadCommand(){let e=be(this._parseControlDataString());if(e.id!==void 0&&e.imageNumber!==void 0)return this._sendResponse(e.id,"EINVAL:cannot specify both i and I keys",e.quiet??0),!0;switch(e.action??"t"){case"d":return this._handleDelete(e);case"q":return this._sendResponse(e.id??0,"OK",e.quiet??0),!0;case"p":return this._handlePlacement(e);default:return e.id!==void 0&&this._sendResponse(e.id,"EINVAL:unsupported action",e.quiet??0),!0}}_handleCommandWithBytesAndCmd(e,t,i){switch(e.action??"t"){case"t":{let s=this._handleTransmit(e,t,i);return(e.transmission??"d")==="d"&&e.id!==void 0&&(i?this._sendResponse(e.id,"EINVAL:invalid base64 data",e.quiet??0):t.length>0&&this._sendResponse(e.id,"OK",e.quiet??0)),s}case"T":return this._handleTransmitDisplay(e,t,i);case"q":return this._handleQuery(e,t,i);case"p":return this._handlePlacement(e);default:return e.id!==void 0&&this._sendResponse(e.id,"EINVAL:unsupported action",e.quiet??0),!0}}_handlePlacement(e){if(e.id===void 0)return!0;let t=e.id,i=this._kittyStorage.getImage(t);return i?this._displayImage(i,e).then(s=>(this._sendResponse(t,s?"OK":"EINVAL:image rendering failed",e.quiet??0,e.placementId),!0)):(this._sendResponse(t,"ENOENT:image not found",e.quiet??0,e.placementId),!0)}_handleTransmit(e,t,i){return(e.transmission??"d")!=="d"?(e.id!==void 0&&this._sendResponse(e.id,"EINVAL:unsupported transmission medium",e.quiet??0),!0):(i||t.length===0||this._kittyStorage.storeImage(e.id,{data:new Blob([t]),width:e.width??0,height:e.height??0,format:e.format??32,compression:e.compression??""}),!0)}_handleTransmitDisplay(e,t,i){if(i)return e.id!==void 0&&this._sendResponse(e.id,"EINVAL:invalid base64 data",e.quiet??0),!0;this._handleTransmit(e,t,i);let A=e.id??this._kittyStorage.lastImageId,s=this._kittyStorage.getImage(A);if(s){let n=this._displayImage(s,e);return e.id!==void 0?n.then(a=>(this._sendResponse(A,a?"OK":"EINVAL:image rendering failed",e.quiet??0),!0)):n.then(()=>!0)}return!0}_handleQuery(e,t,i){let A=e.id??0,s=e.quiet??0;if((e.transmission??"d")!=="d")return this._sendResponse(A,"EINVAL:unsupported transmission medium",s),!0;if(i)return this._sendResponse(A,"EINVAL:invalid base64 data",s),!0;if(t.length===0)return this._sendResponse(A,"OK",s),!0;let a=e.format??32;if(a===100)this._sendResponse(A,"OK",s);else{let o=e.width??0,g=e.height??0;if(!o||!g)return this._sendResponse(A,"EINVAL:width and height required for raw pixel data",s),!0;let h=a===32?4:3,I=o*g*h;if(t.length<I)return this._sendResponse(A,"EINVAL:insufficient pixel data",s),!0;this._sendResponse(A,"OK",s)}return!0}_handleDelete(e){switch(e.deleteSelector??"a"){case"a":case"A":this._cleanupAllPending(),this._kittyStorage.deleteAll();break;case"i":case"I":if(e.id!==void 0){let i=this._pendingTransmissions.get(e.id);i&&i.decoder.release(),this._removePendingEntry(e.id),this._kittyStorage.deleteById(e.id)}break;default:break}return!0}_sendResponse(e,t,i,A){let s=t==="OK";if(s&&i>=1||!s&&i>=2)return;let n=A?`,p=${A}`:"",a=`\x1B_Gi=${e}${n};${t}\x1B\\`;this._coreTerminal._core.coreService.triggerDataEvent(a)}_displayImage(e,t){return this._decodeAndDisplay(e,t).then(()=>!0).catch(()=>!1)}async _decodeAndDisplay(e,t){let i=await this._createBitmap(e);try{let A=Math.max(0,t.x??0),s=Math.max(0,t.y??0),n=t.sourceWidth||i.width-A,a=t.sourceHeight||i.height-s,o=Math.max(0,i.width-A),g=Math.max(0,i.height-s),h=Math.max(0,Math.min(n,o)),I=Math.max(0,Math.min(a,g));if(h===0||I===0)throw new Error("invalid source rectangle");if(A!==0||s!==0||h!==i.width||I!==i.height){let T=await createImageBitmap(i,A,s,h,I);i.close(),i=T}let d=this._renderer.dimensions?.css.cell.width||w.width,c=this._renderer.dimensions?.css.cell.height||w.height,l,E;t.columns!==void 0&&t.rows!==void 0?(l=t.columns,E=t.rows):t.columns!==void 0?(l=t.columns,E=Math.max(1,Math.ceil(i.height/i.width*(l*d)/c))):t.rows!==void 0?(E=t.rows,l=Math.max(1,Math.ceil(i.width/i.height*(E*c)/d))):(l=Math.ceil(i.width/d),E=Math.ceil(i.height/c));let p=i.width,u=i.height;if((t.columns!==void 0||t.rows!==void 0)&&(p=Math.round(l*d),u=Math.round(E*c)),p*u>this._opts.pixelLimit)throw new Error("image exceeds pixel limit");let C=this._coreTerminal._core.buffer,Q=C.x,K=C.y,Y=C.ybase,Ve=t.zIndex!==void 0&&t.zIndex<0?"bottom":"top";if(p!==i.width||u!==i.height){let T=await createImageBitmap(i,{resizeWidth:p,resizeHeight:u});i.close(),i=T}let oe=Math.min(Math.max(0,t.xOffset??0),d-1),he=Math.min(Math.max(0,t.yOffset??0),c-1);if(oe!==0||he!==0){let T=t.columns!==void 0?Math.round(l*d):i.width+oe,et=t.rows!==void 0?Math.round(E*c):i.height+he,q=D.createCanvas(window.document,T,et),Le=q.getContext("2d");if(!Le)throw new Error("Failed to create offset canvas context");Le.drawImage(i,oe,he);let tt=await createImageBitmap(q);if(q.width=q.height=0,i.close(),i=tt,p=i.width,u=i.height,p*u>this._opts.pixelLimit)throw new Error("image exceeds pixel limit");t.columns===void 0&&(l=Math.ceil(i.width/d)),t.rows===void 0&&(E=Math.ceil(i.height/c))}let $e=t.zIndex??0;if(this._kittyStorage.addImage(e.id,i,!0,Ve,$e),i=void 0,t.cursorMovement===1){let T=C.ybase-Y;C.x=Q,C.y=Math.max(K-T,0)}else C.x=Math.min(Q+l,this._coreTerminal.cols)}catch(A){throw i?.close(),A}}async _createBitmap(e){let t=new Uint8Array(await e.data.arrayBuffer());if(e.compression==="z"&&(t=await this._decompressZlib(t)),e.format===100){let p=new Blob([t],{type:"image/png"});if(!window.createImageBitmap){let u=URL.createObjectURL(p),C=new Image;return new Promise((Q,K)=>{C.addEventListener("load",()=>{URL.revokeObjectURL(u);let Y=D.createCanvas(window.document,C.width,C.height);Y.getContext("2d")?.drawImage(C,0,0),createImageBitmap(Y).then(Q).catch(K)}),C.addEventListener("error",()=>{URL.revokeObjectURL(u),K(new Error("Failed to load image"))}),C.src=u})}return createImageBitmap(p)}let i=e.width,A=e.height;if(!i||!A)throw new Error("Width and height required for raw pixel data");let s=e.format===32?4:3,n=i*A*s;if(t.length<n)throw new Error("Insufficient pixel data");let a=i*A;if(e.format===32)return createImageBitmap(new ImageData(new Uint8ClampedArray(t.buffer,t.byteOffset,a*4),i,A));let o=new Uint8ClampedArray(a*4),g=new Uint32Array(t.buffer,t.byteOffset,Math.floor(t.byteLength/4)),h=new Uint32Array(o.buffer),I=a&-4,d=0,c=0;for(let p=0;p<I;p+=4){let u=g[d++],C=g[d++],Q=g[d++];h[c++]=4278190080|u,h[c++]=4278190080|u>>>24|C<<8,h[c++]=4278190080|C>>>16|Q<<16,h[c++]=4278190080|Q>>>8}let l=I*3,E=I*4;for(let p=I;p<a;p++)o[E]=t[l],o[E+1]=t[l+1],o[E+2]=t[l+2],o[E+3]=255,l+=3,E+=4;return createImageBitmap(new ImageData(o,i,A))}async _decompressZlib(e){try{return await this._decompress(e,"deflate")}catch{return await this._decompress(e,"deflate-raw")}}async _decompress(e,t){let i=new DecompressionStream(t),A=i.writable.getWriter();A.write(e),A.close();let s=[],n=i.readable.getReader();for(;;){let{done:h,value:I}=await n.read();if(h)break;s.push(I)}let a=s.reduce((h,I)=>h+I.length,0),o=new Uint8Array(a),g=0;for(let h of s)o.set(h,g),g+=h.length;return o}get images(){return this._kittyStorage.images}get _kittyIdToStorageId(){return this._kittyStorage.kittyIdToStorageId}get pendingTransmissions(){return this._pendingTransmissions}};var U=class U{constructor(e){this._storage=e;this._nextImageId=1;this._images=new Map;this._kittyIdToStorageId=new Map;this._storageIdToKittyId=new Map;this._handleStorageImageDeleted=e=>{let t=this._storageIdToKittyId.get(e);t!==void 0&&(this._kittyIdToStorageId.delete(t),this._storageIdToKittyId.delete(e),this._images.delete(t))};this._addImageOpts={scrolling:!0,layer:"top",zIndex:0,cursorPos:"iip"};this._previousOnImageDeleted=this._storage.onImageDeleted,this._wrappedOnImageDeleted=t=>{this._previousOnImageDeleted?.(t),this._handleStorageImageDeleted(t)},this._storage.onImageDeleted=this._wrappedOnImageDeleted}reset(){this._nextImageId=1,this._images.clear(),this._kittyIdToStorageId.clear(),this._storageIdToKittyId.clear()}dispose(){this.reset(),this._storage.onImageDeleted===this._wrappedOnImageDeleted&&(this._storage.onImageDeleted=this._previousOnImageDeleted)}storeImage(e,t){let i=e??this._nextImageId++,A=this._kittyIdToStorageId.get(i);return A!==void 0&&(this._storage.deleteImage(A),this._kittyIdToStorageId.delete(i),this._storageIdToKittyId.delete(A)),!this._images.has(i)&&this._images.size>=U._maxStoredImages&&this._evictUndisplayedImages(),this._images.set(i,{...t,id:i}),i}addImage(e,t,i,A,s){let n=this._kittyIdToStorageId.get(e);n!==void 0&&this._storageIdToKittyId.delete(n),this._addImageOpts.scrolling=i,this._addImageOpts.layer=A,this._addImageOpts.zIndex=s;let a=this._storage.addImage(t,this._addImageOpts);this._kittyIdToStorageId.set(e,a),this._storageIdToKittyId.set(a,e)}getImage(e){return this._images.get(e)}deleteById(e){this._images.delete(e);let t=this._kittyIdToStorageId.get(e);t!==void 0&&(this._storage.deleteImage(t),this._kittyIdToStorageId.delete(e),this._storageIdToKittyId.delete(t))}deleteAll(){this._images.clear();for(let e of this._kittyIdToStorageId.values())this._storage.deleteImage(e);this._kittyIdToStorageId.clear(),this._storageIdToKittyId.clear()}get images(){return this._images}get kittyIdToStorageId(){return this._kittyIdToStorageId}get lastImageId(){return this._nextImageId-1}_evictUndisplayedImages(){for(let[e]of this._images){if(this._images.size<=U._maxStoredImages/2)break;this._kittyIdToStorageId.has(e)||this._images.delete(e)}}};U._maxStoredImages=256;var te=U;var y=M(X());var ze=M(We());var xt=4194304,Se=y.PALETTE_ANSI_256;Se.set(y.PALETTE_VT340_COLOR);var se=class{constructor(e,t,i){this._opts=e;this._storage=t;this._coreTerminal=i;this._size=0;this._aborted=!1;(0,ze.DecoderAsync)({memoryLimit:this._opts.pixelLimit*4,palette:Se,paletteLimit:this._opts.sixelPaletteLimit}).then(A=>this._dec=A)}reset(){this._dec&&(this._dec.release(),this._dec._palette.fill(0),this._dec.init(0,Se,this._opts.sixelPaletteLimit))}hook(e){if(this._size=0,this._aborted=!1,this._dec){let t=e.params[1]===1?0:Mt(this._coreTerminal._core._inputHandler._curAttrData,this._coreTerminal._core._themeService?.colors);this._dec.init(t,null,this._opts.sixelPaletteLimit)}}put(e,t,i){if(!(this._aborted||!this._dec)){if(this._size+=i-t,this._size>this._opts.sixelSizeLimit){console.warn("SIXEL: too much data, aborting"),this._aborted=!0,this._dec.release();return}try{this._dec.decode(e,t,i)}catch(A){console.warn(`SIXEL: error while decoding image - ${A}`),this._aborted=!0,this._dec.release()}}}unhook(e){if(this._aborted||!e||!this._dec)return!0;let t=this._dec.width,i=this._dec.height;if(!t||!i)return i&&this._storage.advanceCursor(i),!0;let A=D.createCanvas(void 0,t,i);return A.getContext("2d")?.putImageData(new ImageData(this._dec.data8,t,i),0,0),this._dec.memoryUsage>xt&&this._dec.release(),this._storage.addImage(A),!0}};function Mt(r,e){let t=0;if(!e)return t;if(r.isInverse())if(r.isFgDefault())t=re(e.foreground.rgba);else if(r.isFgRGB()){let i=r.constructor.toColorRGB(r.getFgColor());t=(0,y.toRGBA8888)(...i)}else t=re(e.ansi[r.getFgColor()].rgba);else if(r.isBgDefault())t=re(e.background.rgba);else if(r.isBgRGB()){let i=r.constructor.toColorRGB(r.getBgColor());t=(0,y.toRGBA8888)(...i)}else t=re(e.ansi[r.getBgColor()].rgba);return t}function re(r){return y.BIG_ENDIAN?r:(r&255)<<24|(r>>>8&255)<<16|(r>>>16&255)<<8|r>>>24&255}var ne=class{constructor(e,t,i,A){this._storage=e;this._opts=t;this._renderer=i;this._terminal=A;this._addImageOpts={scrolling:!0,layer:"top",zIndex:0,cursorPos:"vt340"}}addImage(e){this._addImageOpts.scrolling=this._opts.sixelScrolling,this._storage.addImage(e,this._addImageOpts)}advanceCursor(e){if(this._opts.sixelScrolling){let t=this._renderer.cellSize;(t.width===-1||t.height===-1)&&(t=w);let i=Math.ceil(e/t.height);for(let A=1;A<i;++A)this._terminal._core._inputHandler.lineFeed()}}};var ae=class{constructor(e){this._storage=e;this._addImageOpts={scrolling:!0,layer:"top",zIndex:0,cursorPos:"iip"}}addImage(e){this._storage.addImage(e,this._addImageOpts)}};var Xe={enableSizeReports:!0,pixelLimit:16777216,sixelSupport:!0,sixelScrolling:!0,sixelPaletteLimit:4096,sixelSizeLimit:33554432,storageLimit:128,showPlaceholder:!0,iipSupport:!0,iipSizeLimit:33554432,kittySupport:!0,kittySizeLimit:33554432},Ze=4096;var je=class{constructor(e){this._disposables=[];this._handlers=new Map;this._onImageAdded=new z;this.onImageAdded=this._onImageAdded.event;this._opts=Object.assign({},Xe,e),this._defaultOpts=Object.assign({},Xe,e)}dispose(){for(let e of this._disposables)e.dispose();this._disposables.length=0,this._handlers.clear(),this._onImageAdded.dispose()}_disposeLater(...e){for(let t of e)this._disposables.push(t)}activate(e){if(this._terminal=e,this._renderer=new D(e),this._storage=new Z(e,this._renderer,this._opts),this._storage.onImageAdded=()=>this._onImageAdded.fire(),this._opts.enableSizeReports){let t=e.options.windowOptions??{};t.getWinSizePixels=!0,t.getCellSizePixels=!0,t.getWinSizeChars=!0,e.options.windowOptions=t}if(this._disposeLater(this._renderer,this._storage,e.parser.registerCsiHandler({prefix:"?",final:"h"},t=>this._decset(t)),e.parser.registerCsiHandler({prefix:"?",final:"l"},t=>this._decrst(t)),e.parser.registerCsiHandler({final:"c"},t=>this._da1(t)),e.parser.registerCsiHandler({prefix:"?",final:"S"},t=>this._xtermGraphicsAttributes(t)),e.onRender(t=>this._storage?.render(t)),e.parser.registerCsiHandler({intermediates:"!",final:"p"},()=>this.reset()),e.parser.registerEscHandler({final:"c"},()=>this.reset()),e._core._inputHandler.onRequestReset(()=>this.reset()),e.buffer.onBufferChange(()=>this._storage?.wipeAlternate()),e.onResize(t=>this._storage?.viewportResize(t))),this._opts.sixelSupport){let t=new ne(this._storage,this._opts,this._renderer,e),i=new se(this._opts,t,e);this._handlers.set("sixel",i),this._disposeLater(e._core._inputHandler._parser.registerDcsHandler({final:"q"},i))}if(this._opts.iipSupport){let t=new ae(this._storage),i=new $(this._opts,this._renderer,t,e);this._handlers.set("iip",i),this._disposeLater(e._core._inputHandler._parser.registerOscHandler(1337,i))}if(this._opts.kittySupport){let t=new te(this._storage),i=new ee(this._opts,this._renderer,t,e);this._handlers.set("kitty",i),this._disposeLater(t,i,e._core._inputHandler._parser.registerApcHandler({final:"G"},i))}}reset(){this._opts.sixelScrolling=this._defaultOpts.sixelScrolling,this._opts.sixelPaletteLimit=this._defaultOpts.sixelPaletteLimit,this._storage?.reset();for(let e of this._handlers.values())e.reset();return!1}get storageLimit(){return this._storage?.getLimit()||-1}set storageLimit(e){this._storage?.setLimit(e),this._opts.storageLimit=e}get storageUsage(){return this._storage?this._storage.getUsage():-1}get showPlaceholder(){return this._opts.showPlaceholder}set showPlaceholder(e){this._opts.showPlaceholder=e,this._renderer?.showPlaceholder(e)}getImageAtBufferCell(e,t){return this._storage?.getImageAtBufferCell(e,t)}extractTileAtBufferCell(e,t){return this._storage?.extractTileAtBufferCell(e,t)}_report(e){this._terminal?._core.input(e,!1)}_decset(e){for(let t=0;t<e.length;++t)e[t]===80&&(this._opts.sixelScrolling=!1);return!1}_decrst(e){for(let t=0;t<e.length;++t)e[t]===80&&(this._opts.sixelScrolling=!0);return!1}_da1(e){return e[0]?!0:this._opts.sixelSupport?(this._report("\x1B[?62;4;9;22c"),!0):!1}_xtermGraphicsAttributes(e){if(e.length<2)return!0;if(e[0]===1)switch(e[1]){case 1:return this._report(`\x1B[?${e[0]};0;${this._opts.sixelPaletteLimit}S`),!0;case 2:this._opts.sixelPaletteLimit=this._defaultOpts.sixelPaletteLimit,this._report(`\x1B[?${e[0]};0;${this._opts.sixelPaletteLimit}S`);for(let t of this._handlers.values())t.reset();return!0;case 3:return e.length>2&&!(e[2]instanceof Array)&&e[2]<=Ze?(this._opts.sixelPaletteLimit=e[2],this._report(`\x1B[?${e[0]};0;${this._opts.sixelPaletteLimit}S`)):this._report(`\x1B[?${e[0]};2S`),!0;case 4:return this._report(`\x1B[?${e[0]};0;${Ze}S`),!0;default:return this._report(`\x1B[?${e[0]};2S`),!0}if(e[0]===2)switch(e[1]){case 1:let t=this._renderer?.dimensions?.css.canvas.width,i=this._renderer?.dimensions?.css.canvas.height;if(!t||!i){let s=w;t=(this._terminal?.cols||80)*s.width,i=(this._terminal?.rows||24)*s.height}if(t*i<this._opts.pixelLimit)this._report(`\x1B[?${e[0]};0;${t.toFixed(0)};${i.toFixed(0)}S`);else{let s=Math.floor(Math.sqrt(this._opts.pixelLimit));this._report(`\x1B[?${e[0]};0;${s};${s}S`)}return!0;case 4:let A=Math.floor(Math.sqrt(this._opts.pixelLimit));return this._report(`\x1B[?${e[0]};0;${A};${A}S`),!0;default:return this._report(`\x1B[?${e[0]};2S`),!0}return this._report(`\x1B[?${e[0]};1S`),!0}};export{je as ImageAddon};
|
||
+var at=Object.create;var Ne=Object.defineProperty;var ot=Object.getOwnPropertyDescriptor;var ht=Object.getOwnPropertyNames;var dt=Object.getPrototypeOf,gt=Object.prototype.hasOwnProperty;var M=(r,e)=>()=>{try{return e||r((e={exports:{}}).exports,e),e.exports}catch(t){throw e=0,t}};var It=(r,e,t,i)=>{if(e&&typeof e=="object"||typeof e=="function")for(let A of ht(e))!gt.call(r,A)&&A!==t&&Ne(r,A,{get:()=>e[A],enumerable:!(i=ot(e,A))||i.enumerable});return r};var x=(r,e,t)=>(t=r!=null?at(dt(r)):{},It(e||!r||!r.__esModule?Ne(t,"default",{value:r,enumerable:!0}):t,r));var j=M(_=>{"use strict";Object.defineProperty(_,"__esModule",{value:!0});_.DEFAULT_FOREGROUND=_.DEFAULT_BACKGROUND=_.PALETTE_ANSI_256=_.PALETTE_VT340_GREY=_.PALETTE_VT340_COLOR=_.normalizeHLS=_.normalizeRGB=_.nearestColorIndex=_.fromRGBA8888=_.toRGBA8888=_.alpha=_.blue=_.green=_.red=_.BIG_ENDIAN=void 0;_.BIG_ENDIAN=new Uint8Array(new Uint32Array([4278190080]).buffer)[0]===255;_.BIG_ENDIAN&&console.warn("BE platform detected. This version of node-sixel works only on LE properly.");function He(r){return r&255}_.red=He;function Fe(r){return r>>>8&255}_.green=Fe;function Ge(r){return r>>>16&255}_.blue=Ge;function ct(r){return r>>>24&255}_.alpha=ct;function f(r,e,t,i=255){return((i&255)<<24|(t&255)<<16|(e&255)<<8|r&255)>>>0}_.toRGBA8888=f;function mt(r){return[r&255,r>>8&255,r>>16&255,r>>>24]}_.fromRGBA8888=mt;function _t(r,e){let t=He(r),i=Fe(r),A=Ge(r),s=Number.MAX_SAFE_INTEGER,n=-1;for(let a=0;a<e.length;++a){let o=t-e[a][0],h=i-e[a][1],d=A-e[a][2],g=o*o+h*h+d*d;if(!g)return a;g<s&&(s=g,n=a)}return n}_.nearestColorIndex=_t;function ce(r,e,t){return Math.max(r,Math.min(t,e))}function me(r,e,t){return t<0&&(t+=1),t>1&&(t-=1),t*6<1?e+(r-e)*6*t:t*2<1?r:t*3<2?e+(r-e)*(4-t*6):e}function ut(r,e,t){if(!t){let s=Math.round(e*255);return f(s,s,s)}let i=e<.5?e*(1+t):e+t-e*t,A=2*e-i;return f(ce(0,255,Math.round(me(i,A,r+1/3)*255)),ce(0,255,Math.round(me(i,A,r)*255)),ce(0,255,Math.round(me(i,A,r-1/3)*255)))}function 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"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je=M(b=>{"use strict";Object.defineProperty(b,"__esModule",{value:!0});b.decodeAsync=b.decode=b.Decoder=b.DecoderAsync=void 0;var O=j(),Q=xe();function Mt(r){if(typeof Buffer<"u")return Buffer.from(r,"base64");let e=atob(r),t=new Uint8Array(e.length);for(let i=0;i<t.length;++i)t[i]=e.charCodeAt(i);return t}var Xe=Mt(Q.LIMITS.BYTES),J,ne=new Uint32Array,Me=class{constructor(){this.bandHandler=e=>1,this.modeHandler=e=>1}handle_band(e){return this.bandHandler(e)}mode_parsed(e){return this.modeHandler(e)}},vt={memoryLimit:2048*65536,sixelColor:O.DEFAULT_FOREGROUND,fillColor:O.DEFAULT_BACKGROUND,palette:O.PALETTE_VT340_COLOR,paletteLimit:Q.LIMITS.PALETTE_SIZE,truncate:!0};function Ze(r){let e=new Me,t={env:{handle_band:e.handle_band.bind(e),mode_parsed:e.mode_parsed.bind(e)}};return WebAssembly.instantiate(J||Xe,t).then(i=>(J=J||i.module,new P(r,i.instance||i,e)))}b.DecoderAsync=Ze;var P=class{constructor(e,t,i){if(this._PIXEL_OFFSET=Q.LIMITS.MAX_WIDTH+4,this._canvas=ne,this._bandWidths=[],this._maxWidth=0,this._minWidth=Q.LIMITS.MAX_WIDTH,this._lastOffset=0,this._currentHeight=0,this._opts=Object.assign({},vt,e),this._opts.paletteLimit>Q.LIMITS.PALETTE_SIZE)throw new Error(`DecoderOptions.paletteLimit must not exceed ${Q.LIMITS.PALETTE_SIZE}`);if(t)i.bandHandler=this._handle_band.bind(this),i.modeHandler=this._initCanvas.bind(this);else{let A=J||(J=new WebAssembly.Module(Xe));t=new WebAssembly.Instance(A,{env:{handle_band:this._handle_band.bind(this),mode_parsed:this._initCanvas.bind(this)}})}this._instance=t,this._wasm=this._instance.exports,this._chunk=new Uint8Array(this._wasm.memory.buffer,this._wasm.get_chunk_address(),Q.LIMITS.CHUNK_SIZE),this._states=new Uint32Array(this._wasm.memory.buffer,this._wasm.get_state_address(),12),this._palette=new Uint32Array(this._wasm.memory.buffer,this._wasm.get_palette_address(),Q.LIMITS.PALETTE_SIZE),this._palette.set(this._opts.palette),this._pSrc=new Uint32Array(this._wasm.memory.buffer,this._wasm.get_p0_address()),this._wasm.init(O.DEFAULT_FOREGROUND,0,this._opts.paletteLimit,0)}get _fillColor(){return this._states[0]}get _truncate(){return this._states[8]}get _rasterWidth(){return this._states[6]}get _rasterHeight(){return this._states[7]}get _width(){return this._states[2]?this._states[2]-4:0}get _height(){return this._states[3]}get _level(){return this._states[9]}get _mode(){return this._states[10]}get _paletteLimit(){return this._states[11]}_initCanvas(e){if(e===2){let t=this.width*this.height;if(t>this._canvas.length){if(this._opts.memoryLimit&&t*4>this._opts.memoryLimit)throw this.release(),new Error("image exceeds memory limit");this._canvas=new Uint32Array(t)}this._maxWidth=this._width}else if(e===1)if(this._level===2){let t=Math.min(this._rasterWidth,Q.LIMITS.MAX_WIDTH)*this._rasterHeight;if(t>this._canvas.length){if(this._opts.memoryLimit&&t*4>this._opts.memoryLimit)throw this.release(),new Error("image exceeds memory limit");this._canvas=new Uint32Array(t)}}else this._canvas.length<65536&&(this._canvas=new Uint32Array(65536));return 0}_realloc(e,t){let i=e+t;if(i>this._canvas.length){if(this._opts.memoryLimit&&i*4>this._opts.memoryLimit)throw this.release(),new Error("image exceeds memory limit");let A=new Uint32Array(Math.ceil(i/65536)*65536);A.set(this._canvas),this._canvas=A}}_handle_band(e){let t=this._PIXEL_OFFSET,i=this._lastOffset;if(this._mode===2){let A=this.height-this._currentHeight,s=0;for(;s<6&&A>0;)this._canvas.set(this._pSrc.subarray(t*s,t*s+e),i+e*s),s++,A--;this._lastOffset+=e*s,this._currentHeight+=s}else if(this._mode===1){this._realloc(i,e*6),this._maxWidth=Math.max(this._maxWidth,e),this._minWidth=Math.min(this._minWidth,e);for(let A=0;A<6;++A)this._canvas.set(this._pSrc.subarray(t*A,t*A+e),i+e*A);this._bandWidths.push(e),this._lastOffset+=e*6,this._currentHeight+=6}return 0}get width(){return this._mode!==1?this._width:Math.max(this._maxWidth,this._wasm.current_width())}get height(){return this._mode!==1?this._height:this._wasm.current_width()?this._bandWidths.length*6+this._wasm.current_height():this._bandWidths.length*6}get palette(){return this._palette.subarray(0,this._paletteLimit)}get memoryUsage(){return this._canvas.byteLength+this._wasm.memory.buffer.byteLength+8*this._bandWidths.length}get properties(){return{width:this.width,height:this.height,mode:this._mode,level:this._level,truncate:!!this._truncate,paletteLimit:this._paletteLimit,fillColor:this._fillColor,memUsage:this.memoryUsage,rasterAttributes:{numerator:this._states[4],denominator:this._states[5],width:this._rasterWidth,height:this._rasterHeight}}}init(e=this._opts.fillColor,t=this._opts.palette,i=this._opts.paletteLimit,A=this._opts.truncate){this._wasm.init(this._opts.sixelColor,e,i,A?1:0),t&&this._palette.set(t.subarray(0,Q.LIMITS.PALETTE_SIZE)),this._bandWidths.length=0,this._maxWidth=0,this._minWidth=Q.LIMITS.MAX_WIDTH,this._lastOffset=0,this._currentHeight=0}decode(e,t=0,i=e.length){let A=t;for(;A<i;){let s=Math.min(i-A,Q.LIMITS.CHUNK_SIZE);this._chunk.set(e.subarray(A,A+=s)),this._wasm.decode(0,s)}}decodeString(e,t=0,i=e.length){let A=t;for(;A<i;){let s=Math.min(i-A,Q.LIMITS.CHUNK_SIZE);for(let n=0,a=A;n<s;++n,++a)this._chunk[n]=e.charCodeAt(a);A+=s,this._wasm.decode(0,s)}}get data32(){if(this._mode===0||!this.width||!this.height)return ne;let e=this._wasm.current_width();if(this._mode===2){let t=this.height-this._currentHeight;if(t>0){let i=this._PIXEL_OFFSET,A=this._lastOffset,s=0;for(;s<6&&t>0;)this._canvas.set(this._pSrc.subarray(i*s,i*s+e),A+e*s),s++,t--;t&&this._canvas.fill(this._fillColor,A+e*s)}return this._canvas.subarray(0,this.width*this.height)}if(this._mode===1){if(this._minWidth===this._maxWidth){let s=!1;if(e)if(e!==this._minWidth)s=!0;else{let n=this._PIXEL_OFFSET,a=this._lastOffset;this._realloc(a,e*6);for(let o=0;o<6;++o)this._canvas.set(this._pSrc.subarray(n*o,n*o+e),a+e*o)}if(!s)return this._canvas.subarray(0,this.width*this.height)}let t=new Uint32Array(this.width*this.height);t.fill(this._fillColor);let i=0,A=0;for(let s=0;s<this._bandWidths.length;++s){let n=this._bandWidths[s];for(let a=0;a<6;++a)t.set(this._canvas.subarray(A,A+=n),i),i+=this.width}if(e){let s=this._PIXEL_OFFSET,n=this._wasm.current_height();for(let a=0;a<n;++a)t.set(this._pSrc.subarray(s*a,s*a+e),i+this.width*a)}return t}return ne}get data8(){return new Uint8ClampedArray(this.data32.buffer,0,this.width*this.height*4)}release(){this._canvas=ne,this._bandWidths.length=0,this._maxWidth=0,this._minWidth=Q.LIMITS.MAX_WIDTH,this._wasm.init(O.DEFAULT_FOREGROUND,0,this._opts.paletteLimit,0)}};b.Decoder=P;function Rt(r,e){let t=new P(e);return t.init(),typeof r=="string"?t.decodeString(r):t.decode(r),{width:t.width,height:t.height,data32:t.data32,data8:t.data8}}b.decode=Rt;async function kt(r,e){let t=await Ze(e);return t.init(),typeof r=="string"?t.decodeString(r):t.decode(r),{width:t.width,height:t.height,data32:t.data32,data8:t.data8}}b.decodeAsync=kt});function H(r){return{dispose:r}}var N=class{constructor(){this._disposables=new Set;this._isDisposed=!1}get isDisposed(){return this._isDisposed}add(e){return this._isDisposed?e.dispose():this._disposables.add(e),e}dispose(){if(!this._isDisposed){this._isDisposed=!0;for(let e of this._disposables)e.dispose();this._disposables.clear()}}clear(){for(let e of this._disposables)e.dispose();this._disposables.clear()}},k=class{constructor(){this._store=new N}dispose(){this._store.dispose()}_register(e){return this._store.add(e)}};k.None=Object.freeze({dispose(){}});var X=class{constructor(){this._isDisposed=!1}get value(){return this._isDisposed?void 0:this._value}set value(e){this._isDisposed||e===this._value||(this._value?.dispose(),this._value=e)}clear(){this.value=void 0}dispose(){this._isDisposed=!0,this._value?.dispose(),this._value=void 0}};var Z=class{constructor(){this._listeners=[];this._disposed=!1}get event(){return this._event?this._event:(this._event=(e,t,i)=>{if(this._disposed)return H(()=>{});let A={fn:e,thisArgs:t};this._listeners=this._listeners.slice(),this._listeners.push(A);let s=H(()=>{let n=this._listeners.indexOf(A);n!==-1&&(this._listeners=this._listeners.slice(),this._listeners.splice(n,1))});return i&&(Array.isArray(i)?i.push(s):i.add(s)),s},this._event)}fire(e){if(this._disposed||!this._listeners.length)return;if(this._listeners.length===1){this._listeners[0].fn.call(this._listeners[0].thisArgs,e);return}let t=this._listeners;for(let i=0,A=t.length;i<A;++i)t[i].fn.call(t[i].thisArgs,e)}dispose(){this._disposed||(this._disposed=!0,this._listeners.length=0)}},lt;(A=>{function r(s,n){return s(a=>n.fire(a))}A.forward=r;function e(s,n){return(a,o,h)=>s(d=>a.call(o,n(d)),void 0,h)}A.map=e;function t(...s){return(n,a,o)=>{let h=new N;for(let d of s)h.add(d(g=>n.call(a,g)));return o&&(Array.isArray(o)?o.push(h):o.add(h)),h}}A.any=t;function i(s,n,a){return n(a),s(o=>n(o))}A.runAndSubscribe=i})(lt||={});var _e=x(j());var D=class r extends k{constructor(t){super();this._terminal=t;this._layers=new Map;this._optionsRefresh=this._register(new X);this._oldOpen=this._terminal._core.open,this._terminal._core.open=i=>{this._oldOpen?.call(this._terminal._core,i),this._open()},this._terminal._core.screenElement&&this._open(),this._optionsRefresh.value=this._terminal._core.optionsService.onOptionChange(i=>{i==="fontSize"&&(this.rescaleCanvas(),this._renderService?.refreshRows(0,this._terminal.rows))}),this._register(H(()=>{this.removeLayerFromDom(),this.removeLayerFromDom("bottom"),this._terminal._core&&this._oldOpen&&(this._terminal._core.open=this._oldOpen,this._oldOpen=void 0),this._renderService&&this._oldSetRenderer&&(this._renderService.setRenderer=this._oldSetRenderer,this._oldSetRenderer=void 0),this._renderService=void 0,this._layers.clear(),this._placeholderBitmap?.close(),this._placeholderBitmap=void 0,this._placeholder=void 0}))}get canvas(){return this._layers.get("top")?.canvas}static createCanvas(t,i,A){let s=(t??document).createElement("canvas");return s.width=i|0,s.height=A|0,s}static createImageData(t,i,A,s){if(typeof ImageData!="function"){let n=t.createImageData(i,A);return s&&n.data.set(new Uint8ClampedArray(s,0,i*A*4)),n}return s?new ImageData(new Uint8ClampedArray(s,0,i*A*4),i,A):new ImageData(i,A)}static createImageBitmap(t){return typeof createImageBitmap!="function"?Promise.resolve(void 0):createImageBitmap(t)}showPlaceholder(t){t?!this._placeholder&&this.cellSize.height!==-1&&this._createPlaceHolder(Math.max(this.cellSize.height+1,24)):(this._placeholderBitmap?.close(),this._placeholderBitmap=void 0,this._placeholder=void 0),this._renderService?.refreshRows(0,this._terminal.rows)}get dimensions(){return this._terminal.dimensions}get cellSize(){return{width:this.dimensions?.css.cell.width||-1,height:this.dimensions?.css.cell.height||-1}}clearLines(t,i,A){let s=t*(this.dimensions?.css.cell.height||0),n=this.dimensions?.css.canvas.width||0,a=(i+1-t)*(this.dimensions?.css.cell.height||0);(!A||A==="top")&&this._layers.get("top")?.clearRect(0,s,n,a),(!A||A==="bottom")&&this._layers.get("bottom")?.clearRect(0,s,n,a)}clearAll(t){if(!t||t==="top"){let i=this._layers.get("top");i?.clearRect(0,0,i.canvas.width,i.canvas.height)}if(!t||t==="bottom"){let i=this._layers.get("bottom");i?.clearRect(0,0,i.canvas.width,i.canvas.height)}}draw(t,i,A,s,n=1){let a=this._layers.get(t.layer);if(!a)return;let{width:o,height:h}=this.cellSize;if(o===-1||h===-1)return;this._rescaleImage(t,o,h);let d=t.actual,{width:g,height:I}=t.actualCellSize,l=Math.ceil(d.width/g),c=i%l*g,u=Math.floor(i/l)*I,E=A*o,C=s*h,p=n*g+c>d.width?d.width-c:n*g,B=u+I>d.height?d.height-u:I;a.drawImage(d,Math.floor(c),Math.floor(u),Math.ceil(p),Math.ceil(B),Math.floor(E),Math.floor(C),Math.ceil(p*o/g),Math.ceil(B*h/I))}extractTile(t,i){let{width:A,height:s}=this.cellSize;if(A===-1||s===-1)return;this._rescaleImage(t,A,s);let n=t.actual,{width:a,height:o}=t.actualCellSize,h=Math.ceil(n.width/a),d=i%h*a,g=Math.floor(i/h)*o,I=a+d>n.width?n.width-d:a,l=g+o>n.height?n.height-g:o,c=r.createCanvas(this.document,Math.ceil(I*A/a),Math.ceil(l*s/o)),u=c.getContext("2d");if(u)return u.drawImage(n,Math.floor(d),Math.floor(g),Math.floor(I),Math.floor(l),0,0,c.width,c.height),c}drawPlaceholder(t,i,A=1){let s=this._layers.get("top");if(s){let{width:n,height:a}=this.cellSize;if(n===-1||a===-1||(this._placeholder?a>=this._placeholder.height&&this._createPlaceHolder(a+1):this._createPlaceHolder(Math.max(a+1,24)),!this._placeholder))return;s.drawImage(this._placeholderBitmap??this._placeholder,t*n,i*a%2?0:1,n*A,a,t*n,i*a,n*A,a)}}rescaleCanvas(){let t=this.dimensions?.css.canvas.width||0,i=this.dimensions?.css.canvas.height||0;for(let A of this._layers.values())(A.canvas.width!==t||A.canvas.height!==i)&&(A.canvas.width=t,A.canvas.height=i)}_rescaleImage(t,i,A){if(i===t.actualCellSize.width&&A===t.actualCellSize.height)return;let{width:s,height:n}=t.origCellSize;if(i===s&&A===n){t.actual=t.orig,t.actualCellSize.width=s,t.actualCellSize.height=n;return}let a=Math.ceil(t.orig.width*i/s),o=Math.ceil(t.orig.height*A/n);if(a*o>t.orig.width*t.orig.height){t.actual=t.orig,t.actualCellSize.width=s,t.actualCellSize.height=n;return}let h=r.createCanvas(this.document,a,o),d=h.getContext("2d");d&&(d.drawImage(t.orig,0,0,h.width,h.height),t.actual=h,t.actualCellSize.width=i,t.actualCellSize.height=A)}_open(){this._renderService=this._terminal._core._renderService,this._oldSetRenderer=this._renderService.setRenderer.bind(this._renderService),this._renderService.setRenderer=t=>{for(let i of[...this._layers.keys()])this.removeLayerFromDom(i);this._oldSetRenderer?.call(this._renderService,t)}}insertLayerToDom(t="top"){if(!this.document||!this._terminal._core.screenElement){console.warn("image addon: cannot insert output canvas to DOM, missing document or screenElement");return}if(this._layers.has(t))return;let i=r.createCanvas(this.document,this.dimensions?.css.canvas.width||0,this.dimensions?.css.canvas.height||0);i.classList.add(`xterm-image-layer-${t}`);let A=this._terminal._core.screenElement;A.style.isolation="isolate",t==="bottom"?(i.style.zIndex="-1",A.insertBefore(i,A.firstChild)):(i.style.zIndex="0",A.appendChild(i));let s=i.getContext("2d",{alpha:!0});if(!s){i.remove();return}this._layers.set(t,s),this.clearAll(t)}removeLayerFromDom(t="top"){let i=this._layers.get(t);i&&(i.canvas.remove(),this._layers.delete(t))}hasLayer(t){return this._layers.has(t)}_createPlaceHolder(t=24){this._placeholderBitmap?.close(),this._placeholderBitmap=void 0;let i=32,A=r.createCanvas(this.document,i,t),s=A.getContext("2d",{alpha:!1});if(!s)return;let n=r.createImageData(s,i,t),a=new Uint32Array(n.data.buffer),o=(0,_e.toRGBA8888)(0,0,0),h=(0,_e.toRGBA8888)(255,255,255);a.fill(o);for(let l=0;l<t;++l){let c=l%2,u=l*i;for(let E=0;E<i;E+=2)a[u+E+c]=h}s.putImageData(n,0,0);let d=screen.width+i-1&~(i-1)||4096;this._placeholder=r.createCanvas(this.document,d,t);let g=this._placeholder.getContext("2d",{alpha:!1});if(!g){this._placeholder=void 0;return}for(let l=0;l<d;l+=i)g.drawImage(A,l,0);let I=this._placeholder;r.createImageBitmap(I).then(l=>{this._placeholder!==I?l?.close():this._placeholderBitmap=l}).catch(()=>{})}get document(){return this._terminal._core._coreBrowserService?.window.document}};var w={width:7,height:14},G=class r{constructor(e=0,t=0,i=-1,A=-1){this.imageId=i;this.tileId=A;this._ext=0;this._urlId=0;this._ext=e,this._urlId=t}get ext(){return this._urlId?this._ext&-469762049|this.underlineStyle<<26:this._ext}set ext(e){this._ext=e}get underlineStyle(){return this._urlId?5:(this._ext&469762048)>>26}set underlineStyle(e){this._ext&=-469762049,this._ext|=e<<26&469762048}get underlineColor(){return this._ext&67108863}set underlineColor(e){this._ext&=-67108864,this._ext|=e&67108863}get underlineVariantOffset(){let e=(this._ext&3758096384)>>29;return e<0?e^4294967288:e}set underlineVariantOffset(e){this._ext&=536870911,this._ext|=e<<29&3758096384}get urlId(){return this._urlId}set urlId(e){this._urlId=e}clone(){return new r(this._ext,this._urlId,this.imageId,this.tileId)}isEmpty(){return this.underlineStyle===0&&this._urlId===0&&this.imageId===-1}},F=new G,V=class{constructor(e,t,i){this._terminal=e;this._renderer=t;this._opts=i;this._images=new Map;this._lastId=0;this._lowestId=0;this._fullyCleared=!1;this._needsFullClear=!1;this._pixelLimit=25e5;try{this.setLimit(this._opts.storageLimit)}catch(A){A instanceof Error&&console.error(A.message),console.warn(`storageLimit is set to ${this.getLimit()} MB`)}this._viewportMetrics={cols:this._terminal.cols,rows:this._terminal.rows}}dispose(){this.reset()}reset(){for(let e of this._images.values())e.marker?.dispose();this._images.clear(),this._renderer.clearAll()}getLimit(){return this._pixelLimit*4/1e6}setLimit(e){if(e<.5||e>1e3)throw RangeError("invalid storageLimit, should be at least 0.5 MB and not exceed 1G");this._pixelLimit=e/4*1e6>>>0,this._evictOldest(0)}getUsage(){return this._getStoredPixels()*4/1e6}_getStoredPixels(){let e=0;for(let t of this._images.values())t.orig&&(e+=t.orig.width*t.orig.height,t.actual&&t.actual!==t.orig&&(e+=t.actual.width*t.actual.height));return e}_delImg(e){let t=this._images.get(e);t&&(this._images.delete(e),window.ImageBitmap&&t.orig instanceof ImageBitmap&&t.orig.close(),this.onImageDeleted?.(e))}wipeAlternate(){let e=[];for(let[t,i]of this._images.entries())i.bufferType==="alternate"&&(i.marker?.dispose(),e.push(t));for(let t of e)this._delImg(t);this._needsFullClear=!0,this._fullyCleared=!1}deleteImage(e){let t=this._images.get(e);t&&(t.marker?.dispose(),this._delImg(e))}addImage(e,t){this._evictOldest(e.width*e.height);let i=this._renderer.cellSize;(i.width===-1||i.height===-1)&&(i=w);let A=Math.ceil(e.width/i.width),s=Math.ceil(e.height/i.height),n=++this._lastId,a=this._terminal._core.buffer,o=this._terminal.cols,h=this._terminal.rows,d=a.x,g=a.y,I=d,l=0;t.scrolling||(a.x=0,a.y=0,I=0),this._terminal._core._inputHandler._dirtyRowTracker.markDirty(a.y);for(let C=0;C<s;++C){let p=a.lines.get(a.y+a.ybase);for(let B=0;B<A&&!(I+B>=o);++B)this._writeToCell(p,I+B,n,C*A+B),l++;if(t.scrolling)C<s-1&&this._terminal._core._inputHandler.lineFeed();else if(++a.y>=h)break;a.x=I}this._terminal._core._inputHandler._dirtyRowTracker.markDirty(a.y),t.scrolling?t.cursorPos==="iip"?a.x=Math.min(I+A,o):a.x=I:(a.x=d,a.y=g);let c=[];for(let[C,p]of this._images.entries())p.tileCount<1&&(p.marker?.dispose(),c.push(C));for(let C of c)this._delImg(C);let u=this._terminal.registerMarker(0);u?.onDispose(()=>{this._images.get(n)&&this._delImg(n)}),this._terminal.buffer.active.type==="alternate"&&this._evictOnAlternate();let E={orig:e,origCellSize:i,actual:e,actualCellSize:{...i},marker:u||void 0,tileCount:l,bufferType:this._terminal.buffer.active.type,layer:t.layer,zIndex:t.zIndex};return this._images.set(n,E),this.onImageAdded?.(),n}render(e){let t=!1,i=!1;for(let d of this._images.values())if(d.layer==="bottom"?i=!0:t=!0,t&&i)break;if(t&&!this._renderer.hasLayer("top")&&(this._renderer.insertLayerToDom("top"),!this._renderer.hasLayer("top")))return;if(i&&!this._renderer.hasLayer("bottom")&&this._renderer.insertLayerToDom("bottom"),this._renderer.rescaleCanvas(),!this._images.size){this._fullyCleared||(this._renderer.clearAll(),this._fullyCleared=!0,this._needsFullClear=!1),this._renderer.hasLayer("top")&&this._renderer.removeLayerFromDom("top"),this._renderer.hasLayer("bottom")&&this._renderer.removeLayerFromDom("bottom");return}!t&&this._renderer.hasLayer("top")&&(this._renderer.clearAll("top"),this._renderer.removeLayerFromDom("top")),!i&&this._renderer.hasLayer("bottom")&&(this._renderer.clearAll("bottom"),this._renderer.removeLayerFromDom("bottom")),this._needsFullClear&&(this._renderer.clearAll(),this._fullyCleared=!0,this._needsFullClear=!1);let{start:A,end:s}=e,n=this._terminal._core.buffer,a=this._terminal._core.cols;this._renderer.clearLines(A,s);let o=[],h=[];for(let d=A;d<=s;++d){let g=n.lines.get(d+n.ydisp);if(!g)return;for(let I=0;I<a;++I)if(g.getBg(I)&268435456){let l=g._extendedAttrs[I]??F,c=l.imageId;if(c===void 0||c===-1)continue;let u=this._images.get(c);if(l.tileId!==-1){let E=l.tileId,C=I,p=1;for(;++I<a&&g.getBg(I)&268435456&&(l=g._extendedAttrs[I]??F)&&l.imageId===c&&l.tileId===E+p;)p++;I--,u?u.actual&&o.push({imgSpec:u,tileId:E,col:C,row:d,count:p}):this._opts.showPlaceholder&&h.push({col:C,row:d,count:p}),this._fullyCleared=!1}}}o.sort((d,g)=>d.imgSpec.zIndex-g.imgSpec.zIndex);for(let d of h)this._renderer.drawPlaceholder(d.col,d.row,d.count);for(let d of o)this._renderer.draw(d.imgSpec,d.tileId,d.col,d.row,d.count)}viewportResize(e){if(!this._images.size){this._viewportMetrics=e;return}if(this._viewportMetrics.cols>=e.cols){this._viewportMetrics=e;return}let t=this._terminal._core.buffer,i=t.lines.length,A=this._viewportMetrics.cols-1;for(let s=0;s<i;++s){let n=t.lines.get(s);if(n.getBg(A)&268435456){let a=n._extendedAttrs[A]??F,o=a.imageId;if(o===void 0||o===-1)continue;let h=this._images.get(o);if(!h)continue;let d=Math.ceil((h.actual?.width||0)/h.actualCellSize.width);if(a.tileId%d+1>=d)continue;let g=!1;for(let c=A+1;c>e.cols;++c)if(n._data[c*3+0]&4194303){g=!0;break}if(g)continue;let I=Math.min(e.cols,d-a.tileId%d+A),l=a.tileId;for(let c=A+1;c<I;++c)this._writeToCell(n,c,o,++l),h.tileCount++}}this._viewportMetrics=e}getImageAtBufferCell(e,t){let A=this._terminal._core.buffer.lines.get(t);if(A&&A.getBg(e)&268435456){let s=A._extendedAttrs[e]??F;if(s.imageId&&s.imageId!==-1){let n=this._images.get(s.imageId)?.orig;if(window.ImageBitmap&&n instanceof ImageBitmap){let a=D.createCanvas(window.document,n.width,n.height);return a.getContext("2d")?.drawImage(n,0,0,n.width,n.height),a}return n}}}extractTileAtBufferCell(e,t){let A=this._terminal._core.buffer.lines.get(t);if(A&&A.getBg(e)&268435456){let s=A._extendedAttrs[e]??F;if(s.imageId&&s.imageId!==-1&&s.tileId!==-1){let n=this._images.get(s.imageId);if(n)return this._renderer.extractTile(n,s.tileId)}}}_evictOldest(e){let t=this._getStoredPixels(),i=t;for(;this._pixelLimit<i+e&&this._images.size;){let A=this._images.get(++this._lowestId);A&&A.orig&&(i-=A.orig.width*A.orig.height,A.actual&&A.orig!==A.actual&&(i-=A.actual.width*A.actual.height),A.marker?.dispose(),this._delImg(this._lowestId))}return t-i}_writeToCell(e,t,i,A){if(e._data[t*3+2]&268435456){let s=e._extendedAttrs[t];if(s){if(s.imageId!==void 0){let n=this._images.get(s.imageId);n&&n.tileCount--,s.imageId=i,s.tileId=A;return}e._extendedAttrs[t]=new G(s.ext,s.urlId,i,A);return}}e._data[t*3+2]|=268435456,e._extendedAttrs[t]=new G(0,0,i,A)}_evictOnAlternate(){for(let i of this._images.values())i.bufferType==="alternate"&&(i.tileCount=0);let e=this._terminal._core.buffer;for(let i=0;i<this._terminal.rows;++i){let A=e.lines.get(i);if(A){for(let s=0;s<this._terminal.cols;++s)if(A._data[s*3+2]&268435456){let n=A._extendedAttrs[s]?.imageId;if(n){let a=this._images.get(n);a&&a.tileCount++}}}}let t=[];for(let[i,A]of this._images.entries())A.bufferType==="alternate"&&!A.tileCount&&(A.marker?.dispose(),t.push(i));for(let i of t)this._delImg(i)}};var Ye=x(Be()),qe=x(Ue());function $(r){let e="";for(let t=0;t<r.length;++t)e+=String.fromCharCode(r[t]);return e}function De(r){let e=0;for(let t=0;t<r.length;++t){if(r[t]<48||r[t]>57)throw new Error("illegal char");e=e*10+r[t]-48}return e}function Oe(r){let e=$(r);if(!e.match(/^((auto)|(\d+?((px)|(%)){0,1}))$/))throw new Error("illegal size");return e}function Tt(r){if(typeof Buffer<"u")return Buffer.from($(r),"base64").toString();let e=atob($(r)),t=new Uint8Array(e.length);for(let i=0;i<t.length;++i)t[i]=e.charCodeAt(i);return new TextDecoder().decode(t)}var Je={inline:De,size:De,name:Tt,width:Oe,height:Oe,preserveAspectRatio:De},Pe=[70,105,108,101],Ke=[77,117,108,116,105,112,97,114,116,70,105,108,101],we=[70,105,108,101,80,97,114,116],be=[70,105,108,101,69,110,100],ye=[82,101,112,111,114,116,67,101,108,108,83,105,122,101],Se=1024,ee=class{constructor(){this.state=0;this._buffer=new Uint32Array(Se);this._position=0;this._key="";this.fields={}}reset(){this._buffer.fill(0),this.state=0,this._position=0,this.fields={},this._key=""}end(){if(this.state===0){if(this._position===be.length){for(let e=0;e<be.length;++e)if(this._buffer[e]!==be[e])return this._a();return this.fields.type=4,this.state=4,0}if(this._position===ye.length){for(let e=0;e<ye.length;++e)if(this._buffer[e]!==ye[e])return this._a();return this.fields.type=5,this.state=4,0}return this._a()}return this.state===4?0:this.state===3&&this.fields.type===2?this._storeValue(this._position)?(this.state=4,0):this._a():this._a()}parse(e,t,i){let A=this.state,s=this._position,n=this._buffer;if(A===1||A===4||A===0&&s>14)return-1;for(let a=t;a<i;++a){let o=e[a];switch(o){case 59:if(!this._storeValue(s))return this._a();A=2,s=0;break;case 61:if(A===0){if(n[0]===70){let h=0;for(;h<Pe.length;++h)if(n[h]!==Pe[h])return this._a();if(this.fields.type=1,s===we.length){for(;h<we.length;++h)if(n[h]!==we[h])return this._a();return this.fields.type=3,this.state=4,a+1}}else if(n[0]===77){for(let h=0;h<Ke.length;++h)if(n[h]!==Ke[h])return this._a();this.fields.type=2}else return this._a();A=2,s=0}else if(A===2){if(!this._storeKey(s))return this._a();A=3,s=0}else if(A===3){if(s>=Se)return this._a();n[s++]=o}break;case 58:return A===3&&!this._storeValue(s)?this._a():(this.state=4,a+1);default:if(s>=Se)return this._a();n[s++]=o}}return this.state=A,this._position=s,-2}_a(){return this.fields.type=0,this.state=1,-1}_storeKey(e){let t=$(this._buffer.subarray(0,e));return t?(this._key=t,this.fields[t]=null,!0):!1}_storeValue(e){if(this._key){try{let t=this._buffer.slice(0,e);this.fields[this._key]=Je[this._key]?Je[this._key](t):t}catch{return!1}return!0}return!1}};var L={mime:"unsupported",width:0,height:0};function te(r){if(r.length<32)return L;let e=new Uint32Array(r.buffer,r.byteOffset,8);if(e[0]===1196314761&&e[1]===169478669&&e[3]===1380206665)return{mime:"image/png",width:r[16]<<24|r[17]<<16|r[18]<<8|r[19],height:r[20]<<24|r[21]<<16|r[22]<<8|r[23]};if(r[0]===255&&r[1]===216&&r[2]===255){let[t,i]=xt(r);return{mime:"image/jpeg",width:t,height:i}}if(e[0]===944130375&&(r[4]===55||r[4]===57)&&r[5]===97)return{mime:"image/gif",width:r[7]<<8|r[6],height:r[9]<<8|r[8]};if(e[0]===1718185841)return{mime:"image/qoi",width:r[4]<<24|r[5]<<16|r[6]<<8|r[7],height:r[8]<<24|r[9]<<16|r[10]<<8|r[11]};if(e[0]===1179011410&&e[2]===1346520407&&(e[3]&16777215)===3690582){switch(r[15]){case 88:return{mime:"image/webp",width:(r[24]|r[25]<<8|r[26]<<16)+1,height:(r[27]|r[28]<<8|r[29]<<16)+1};case 76:if(r[20]!==47)return L;let t=r[21]|r[22]<<8|r[23]<<16|r[24]<<24;return{mime:"image/webp",width:(t&16383)+1,height:(t>>>14&16383)+1};case 32:return r[23]!==157||r[24]!==1||r[25]!==42?L:{mime:"image/webp",width:(r[26]|r[27]<<8)&16383,height:(r[28]|r[29]<<8)&16383}}return L}if(e[1]===1887007846&&(e[2]===1718187617||e[2]===1936291425)){let t=-1,i=Math.min(r.length-16,1024);for(let A=8;A<i;A++)if(r[A]===105&&r[A+1]===115&&r[A+2]===112&&r[A+3]===101){t=A;break}if(t!==-1){let A=r[t+8]<<24|r[t+9]<<16|r[t+10]<<8|r[t+11],s=r[t+12]<<24|r[t+13]<<16|r[t+14]<<8|r[t+15];if(A>0&&s>0)return{mime:"image/avif",width:A,height:s}}return L}return L}function xt(r){let e=r.length,t=4,i=r[t]<<8|r[t+1];for(;;){if(t+=i,t>=e)return[0,0];if(r[t]!==255)return[0,0];if(r[t+1]===192||r[t+1]===194)return t+8<e?[r[t+7]<<8|r[t+8],r[t+5]<<8|r[t+6]]:[0,0];t+=2,i=r[t]<<8|r[t+1]}}var Le={type:0,name:"Unnamed file",size:0,width:"auto",height:"auto",preserveAspectRatio:1,inline:0},ie=class{constructor(e,t,i,A){this._opts=e;this._renderer=t;this._storage=i;this._coreTerminal=A;this._generation=0;this._aborted=!1;this._hp=new ee;this._header=Le;this._isMultipart=!1;this._abortMulti=!1;let s=Math.ceil(this._opts.iipSizeLimit*4/3),n=Math.min(1048576,s);this._dec=new Ye.default(0,s,n),this._qoiDec=new qe.default(0)}reset(){this._generation++,this._hp.reset(),this._dec.release(),this._qoiDec.release()}start(){this._aborted=!1,this._hp.reset()}put(e,t,i){if(!this._aborted)if(this._hp.state===4)this._dec.put(e.subarray(t,i))!==0&&(this._dec.release(),this._aborted=!0);else{let A=this._hp.parse(e,t,i);if(A===-1){this._aborted=!0;return}if(A>0){if(this._hp.fields.type===1){if(this._isMultipart&&(this._isMultipart=!1,this._abortMulti=!1,this._dec.release()),this._header=Object.assign({},Le,this._hp.fields),!this._header.inline){this._aborted=!0;return}if(!this._initDecoder()){this._aborted=!0;return}}else if(this._abortMulti){this._aborted=!0;return}this._dec.put(e.subarray(A,i))!==0&&(this._dec.release(),this._aborted=!0,this._isMultipart&&(this._abortMulti=!0))}}}end(e){if(this._aborted||this._hp.state!==4&&this._hp.end())return!0;let t=this._hp.fields.type;if(t===3)return!0;if(t===5){let h=w.width,d=w.height;this._renderer.dimensions&&(h=this._renderer.dimensions.css.canvas.width/this._coreTerminal.cols,d=this._renderer.dimensions.css.canvas.height/this._coreTerminal.rows);let g=this._coreTerminal._core._coreBrowserService?.dpr??1,I=`\x1B]1337;ReportCellSize=${d.toFixed(3)};${h.toFixed(3)};${g.toFixed(3)}\x1B\\`;return this._coreTerminal.input(I,!1),!0}if(t===2)return this._header=Object.assign({},Le,this._hp.fields),this._isMultipart=!0,this._abortMulti=!1,this._dec.release(),this._initDecoder()||(this._abortMulti=!0),!0;if(t===4&&(!this._isMultipart||(this._isMultipart=!1,this._abortMulti||this._header.type!==2)))return!0;let i=0,A=0,s,n=L;if((s=e)&&((s=!this._dec.end())?(n=te(this._dec.data8),(s=n.mime!=="unsupported")?(i=n.width,A=n.height,(s=i&&A&&i*A<this._opts.pixelLimit)?([i,A]=this._resize(i,A).map(Math.floor),s=i&&A&&i*A<this._opts.pixelLimit):console.warn(`IIP: image dimension issue ${n.width}x${n.height}`)):console.warn("IIP: unsupported image type")):console.warn("IIP: error during BASE64 decoding")),!s)return this._dec.release(),!0;let a;if(n.mime==="image/qoi"){let h;try{h=this._qoiDec.decode(this._dec.data8)}catch(d){return console.warn("IIP: could not decode QOI image",d),this._dec.release(),this._qoiDec.release(),!0}if(a=new ImageData(new Uint8ClampedArray(h.buffer,h.byteOffset,h.byteLength),this._qoiDec.width,this._qoiDec.height),this._qoiDec.release(),i===this._qoiDec.width&&A===this._qoiDec.height){this._dec.release();let d=D.createCanvas(void 0,this._qoiDec.width,this._qoiDec.height);return d.getContext("2d")?.putImageData(a,0,0),this._storage.addImage(d),!0}}else a=new Blob([this._dec.data8],{type:n.mime});this._dec.release();let o=this._generation;return createImageBitmap(a,{resizeWidth:i,resizeHeight:A}).then(h=>o!==this._generation?(h.close(),!0):(this._storage.addImage(h),!0)).catch(h=>(console.warn(`IIP: decoding error ${n.mime} ${n.width}x${n.height}`,h),!0))}_initDecoder(){try{return this._dec.init(),!0}catch(e){return console.warn("IIP: could not allocate decoder",e),this._dec.release(),!1}}_resize(e,t){let i=this._renderer.dimensions?.css.cell.width||w.width,A=this._renderer.dimensions?.css.cell.height||w.height,s=this._renderer.dimensions?.css.canvas.width||i*this._coreTerminal.cols,n=this._renderer.dimensions?.css.canvas.height||A*this._coreTerminal.rows,a=this._dim(this._header.width,s,i),o=this._dim(this._header.height,n,A);if(!a&&!o){let h=s/e,d=(n-A)/t,g=Math.min(h,d);return g<1?[e*g,t*g]:[e,t]}return a?this._header.preserveAspectRatio||!a||!o?[a,t*a/e]:[a,o]:[e*o/t,o]}_dim(e,t,i){return e==="auto"?0:e.endsWith("%")?parseInt(e.slice(0,-1),10)*t/100:e.endsWith("px")?parseInt(e.slice(0,-2),10):parseInt(e,10)*i}};var We=x(Be());function Te(r){let e={},t=r.split(",");for(let i of t){let A=i.indexOf("=");if(A===-1)continue;let s=i.substring(0,A),n=i.substring(A+1);if(s==="a"){e.action=n;continue}if(s==="o"){e.compression=n;continue}if(s==="t"){e.transmission=n;continue}if(s==="d"){e.deleteSelector=n;continue}let a=parseInt(n,10);switch(s){case"f":e.format=a;break;case"i":e.id=a;break;case"I":e.imageNumber=a;break;case"s":e.width=a;break;case"v":e.height=a;break;case"x":e.x=a;break;case"y":e.y=a;break;case"w":e.sourceWidth=a;break;case"h":e.sourceHeight=a;break;case"X":e.xOffset=a;break;case"Y":e.yOffset=a;break;case"c":e.columns=a;break;case"r":e.rows=a;break;case"m":e.more=a;break;case"q":e.quiet=a;break;case"C":e.cursorMovement=a;break;case"z":e.zIndex=a;break;case"p":e.placementId=a;break}}return e}var ze=0,Ae=class{constructor(e,t,i,A){this._opts=e;this._renderer=t;this._kittyStorage=i;this._coreTerminal=A;this._aborted=!1;this._generation=0;this._decodeError=!1;this._activeDecoder=null;this._inControlData=!0;this._controlData=new Uint32Array(512);this._controlLength=0;this._encodedSizeLimit=0;this._totalEncodedSize=0;this._parsedCommand=null;this._pendingTransmissions=new Map;this._maxEncodedBytes=Math.ceil(this._opts.kittySizeLimit*4/3),this._initialEncodedBytes=Math.min(4194304,this._maxEncodedBytes)}reset(){this._generation++,this._cleanupAllPending(),this._activeDecoder&&(this._activeDecoder.release(),this._activeDecoder=null),this._kittyStorage.reset()}dispose(){this.reset()}_removePendingEntry(e){this._pendingTransmissions.delete(e),this._lastPendingKey===e&&(this._lastPendingKey=void 0)}_cleanupAllPending(){for(let e of this._pendingTransmissions.values())e.decoder.release();this._pendingTransmissions.clear(),this._lastPendingKey=void 0}start(){this._aborted=!1,this._decodeError=!1,this._inControlData=!0,this._controlLength=0,this._parsedCommand=null,this._encodedSizeLimit=this._maxEncodedBytes,this._totalEncodedSize=0,this._activeDecoder=null}put(e,t,i){if(!this._aborted)if(!this._inControlData)this._streamPayload(e,t,i);else{let A=i;for(let n=t;n<i;n++)if(e[n]===59){this._inControlData=!1,A=n;break}let s=A-t;if(this._controlLength+s>512){this._aborted=!0;return}if(this._controlData.set(e.subarray(t,A),this._controlLength),this._controlLength+=s,!this._inControlData){if(this._parsedCommand=Te(this._parseControlDataString()),this._parsedCommand.id!==void 0&&this._parsedCommand.imageNumber!==void 0){this._sendResponse(this._parsedCommand.id,"EINVAL:cannot specify both i and I keys",this._parsedCommand.quiet??0),this._aborted=!0;return}if(this._parsedCommand.action==="d")return;let n=A+1;n<i&&this._streamPayload(e,n,i)}}}_streamPayload(e,t,i){if(this._aborted)return;let A=this._parsedCommand?.id??this._lastPendingKey??0,s=this._pendingTransmissions.get(A),n=s?.totalEncodedSize??0;if(this._totalEncodedSize+=i-t,n+this._totalEncodedSize>this._encodedSizeLimit){let o=this._activeDecoder??s?.decoder;o&&o.release(),this._activeDecoder=null,s&&this._removePendingEntry(A),this._aborted=!0;return}if(!this._decodeError){if(s?.decoder&&!this._activeDecoder&&(this._activeDecoder=s.decoder),!this._activeDecoder){let o=this._maxEncodedBytes+131072;if(o>this._opts.storageLimit*1e6){this._aborted=!0,this._parsedCommand?.id!==void 0&&this._sendResponse(this._parsedCommand.id,"ENOMEM:pending image budget exceeded",this._parsedCommand.quiet??0);return}let h=Math.max(1,Math.floor(this._opts.storageLimit*1e6/o));for(;this._pendingTransmissions.size>=h;){let g=this._pendingTransmissions.entries().next().value;if(!g)break;g[1].decoder.release(),this._removePendingEntry(g[0]),g[1].cmd.id!==void 0&&this._sendResponse(g[1].cmd.id,"ENOMEM:pending image budget exceeded",g[1].cmd.quiet??0)}let d=new We.default(4194304,this._maxEncodedBytes,this._initialEncodedBytes);try{d.init()}catch(g){console.warn("KITTY: could not allocate decoder",g),this._aborted=!0,this._parsedCommand?.id!==void 0&&this._sendResponse(this._parsedCommand.id,"ENOMEM:could not allocate decoder",this._parsedCommand.quiet??0);return}this._activeDecoder=d}this._activeDecoder.put(e.subarray(t,i))!==ze&&(this._activeDecoder.release(),this._activeDecoder=null,this._decodeError=!0,s&&this._removePendingEntry(A))}}end(e){if(this._aborted||!e)return this._activeDecoder&&(this._activeDecoder.release(),this._activeDecoder=null),!0;if(this._inControlData)return this._handleNoPayloadCommand();let t=this._parsedCommand;if(t.action==="d")return this._handleDelete(t);let i=t.id??this._lastPendingKey??0,A=t.more===1,s=this._pendingTransmissions.get(i);if(A)return this._activeDecoder&&(s?(s.totalEncodedSize+=this._totalEncodedSize,s.decodeError=s.decodeError||this._decodeError):this._pendingTransmissions.set(i,{cmd:{...t},decoder:this._activeDecoder,totalEncodedSize:this._totalEncodedSize,decodeError:this._decodeError}),this._lastPendingKey=i,this._activeDecoder=null),!0;s&&(this._lastPendingKey=void 0);let n=this._decodeError,a=t,o=this._activeDecoder;s&&(a=s.cmd,o=s.decoder,n=n||s.decodeError,this._pendingTransmissions.delete(i));let h=new Uint8Array(0);o&&(o.end()!==ze&&(n=!0),h=o.data8),this._activeDecoder=null;let d=this._handleCommandWithBytesAndCmd(a,h,n);return o&&o.release(),d}_parseControlDataString(){let e="";for(let t=0;t<this._controlLength;t++)e+=String.fromCodePoint(this._controlData[t]);return e}_handleNoPayloadCommand(){let e=Te(this._parseControlDataString());if(e.id!==void 0&&e.imageNumber!==void 0)return this._sendResponse(e.id,"EINVAL:cannot specify both i and I keys",e.quiet??0),!0;switch(e.action??"t"){case"d":return this._handleDelete(e);case"q":return this._sendResponse(e.id??0,"OK",e.quiet??0),!0;case"p":return this._handlePlacement(e);default:return e.id!==void 0&&this._sendResponse(e.id,"EINVAL:unsupported action",e.quiet??0),!0}}_handleCommandWithBytesAndCmd(e,t,i){switch(e.action??"t"){case"t":{let s=this._handleTransmit(e,t,i);return(e.transmission??"d")==="d"&&e.id!==void 0&&(i?this._sendResponse(e.id,"EINVAL:invalid base64 data",e.quiet??0):t.length>0&&this._sendResponse(e.id,"OK",e.quiet??0)),s}case"T":return this._handleTransmitDisplay(e,t,i);case"q":return this._handleQuery(e,t,i);case"p":return this._handlePlacement(e);default:return e.id!==void 0&&this._sendResponse(e.id,"EINVAL:unsupported action",e.quiet??0),!0}}_handlePlacement(e){if(e.id===void 0)return!0;let t=e.id,i=this._kittyStorage.getImage(t);return i?this._displayImage(i,e).then(s=>(this._sendResponse(t,s?"OK":"EINVAL:image rendering failed",e.quiet??0,e.placementId),!0)):(this._sendResponse(t,"ENOENT:image not found",e.quiet??0,e.placementId),!0)}_handleTransmit(e,t,i){return(e.transmission??"d")!=="d"?(e.id!==void 0&&this._sendResponse(e.id,"EINVAL:unsupported transmission medium",e.quiet??0),!0):(i||t.length===0||this._kittyStorage.storeImage(e.id,{data:new Blob([t]),width:e.width??0,height:e.height??0,format:e.format??32,compression:e.compression??""}),!0)}_handleTransmitDisplay(e,t,i){if(i)return e.id!==void 0&&this._sendResponse(e.id,"EINVAL:invalid base64 data",e.quiet??0),!0;this._handleTransmit(e,t,i);let A=e.id??this._kittyStorage.lastImageId,s=this._kittyStorage.getImage(A);if(s){let n=this._displayImage(s,e);return e.id!==void 0?n.then(a=>(this._sendResponse(A,a?"OK":"EINVAL:image rendering failed",e.quiet??0),!0)):n.then(()=>!0)}return!0}_handleQuery(e,t,i){let A=e.id??0,s=e.quiet??0;if((e.transmission??"d")!=="d")return this._sendResponse(A,"EINVAL:unsupported transmission medium",s),!0;if(i)return this._sendResponse(A,"EINVAL:invalid base64 data",s),!0;if(t.length===0)return this._sendResponse(A,"OK",s),!0;let a=e.format??32;if(a===100)this._sendResponse(A,"OK",s);else{let o=e.width??0,h=e.height??0;if(!o||!h)return this._sendResponse(A,"EINVAL:width and height required for raw pixel data",s),!0;let d=a===32?4:3,g=o*h*d;if(t.length<g)return this._sendResponse(A,"EINVAL:insufficient pixel data",s),!0;this._sendResponse(A,"OK",s)}return!0}_handleDelete(e){switch(e.deleteSelector??"a"){case"a":case"A":this._cleanupAllPending(),this._kittyStorage.deleteAll();break;case"i":case"I":if(e.id!==void 0){let i=this._pendingTransmissions.get(e.id);i&&i.decoder.release(),this._removePendingEntry(e.id),this._kittyStorage.deleteById(e.id)}break;default:break}return!0}_sendResponse(e,t,i,A){let s=t==="OK";if(s&&i>=1||!s&&i>=2)return;let n=A?`,p=${A}`:"",a=`\x1B_Gi=${e}${n};${t}\x1B\\`;this._coreTerminal._core.coreService.triggerDataEvent(a)}_displayImage(e,t){return this._decodeAndDisplay(e,t).then(()=>!0).catch(()=>!1)}async _decodeAndDisplay(e,t){let i=this._generation,A=await this._createBitmap(e);try{if(i!==this._generation)throw new Error("image decode canceled");let s=Math.max(0,t.x??0),n=Math.max(0,t.y??0),a=t.sourceWidth||A.width-s,o=t.sourceHeight||A.height-n,h=Math.max(0,A.width-s),d=Math.max(0,A.height-n),g=Math.max(0,Math.min(a,h)),I=Math.max(0,Math.min(o,d));if(g===0||I===0)throw new Error("invalid source rectangle");if(s!==0||n!==0||g!==A.width||I!==A.height){let T=await createImageBitmap(A,s,n,g,I);A.close(),A=T}let l=this._renderer.dimensions?.css.cell.width||w.width,c=this._renderer.dimensions?.css.cell.height||w.height,u,E;t.columns!==void 0&&t.rows!==void 0?(u=t.columns,E=t.rows):t.columns!==void 0?(u=t.columns,E=Math.max(1,Math.ceil(A.height/A.width*(u*l)/c))):t.rows!==void 0?(E=t.rows,u=Math.max(1,Math.ceil(A.width/A.height*(E*c)/l))):(u=Math.ceil(A.width/l),E=Math.ceil(A.height/c));let C=A.width,p=A.height;if((t.columns!==void 0||t.rows!==void 0)&&(C=Math.round(u*l),p=Math.round(E*c)),C*p>this._opts.pixelLimit)throw new Error("image exceeds pixel limit");let B=this._coreTerminal._core.buffer,Y=B.x,q=B.y,z=B.ybase,At=t.zIndex!==void 0&&t.zIndex<0?"bottom":"top";if(C!==A.width||p!==A.height){let T=await createImageBitmap(A,{resizeWidth:C,resizeHeight:p});A.close(),A=T}let Ie=Math.min(Math.max(0,t.xOffset??0),l-1),le=Math.min(Math.max(0,t.yOffset??0),c-1);if(Ie!==0||le!==0){let T=t.columns!==void 0?Math.round(u*l):A.width+Ie,st=t.rows!==void 0?Math.round(E*c):A.height+le,W=D.createCanvas(window.document,T,st),ke=W.getContext("2d");if(!ke)throw new Error("Failed to create offset canvas context");ke.drawImage(A,Ie,le);let nt=await createImageBitmap(W);if(W.width=W.height=0,A.close(),A=nt,C=A.width,p=A.height,C*p>this._opts.pixelLimit)throw new Error("image exceeds pixel limit");t.columns===void 0&&(u=Math.ceil(A.width/l)),t.rows===void 0&&(E=Math.ceil(A.height/c))}if(i!==this._generation)throw new Error("image decode canceled");let rt=t.zIndex??0;if(this._kittyStorage.addImage(e.id,A,!0,At,rt),A=void 0,t.cursorMovement===1){let T=B.ybase-z;B.x=Y,B.y=Math.max(q-T,0)}else B.x=Math.min(Y+u,this._coreTerminal.cols)}catch(s){throw A?.close(),s}}async _createBitmap(e){let t=new Uint8Array(await e.data.arrayBuffer());if(e.compression==="z"&&(t=await this._decompressZlib(t)),e.format===100){let E=te(t);if(E.mime!=="image/png"||!(E.width>0)||!(E.height>0)||E.width*E.height>this._opts.pixelLimit)throw new RangeError("PNG exceeds pixel limit or has invalid dimensions");let C=new Blob([t],{type:"image/png"});if(!window.createImageBitmap){let p=URL.createObjectURL(C),B=new Image;return new Promise((Y,q)=>{B.addEventListener("load",()=>{URL.revokeObjectURL(p);let z=D.createCanvas(window.document,B.width,B.height);z.getContext("2d")?.drawImage(B,0,0),createImageBitmap(z).then(Y).catch(q)}),B.addEventListener("error",()=>{URL.revokeObjectURL(p),q(new Error("Failed to load image"))}),B.src=p})}return createImageBitmap(C)}let i=e.width,A=e.height;if(!i||!A)throw new Error("Width and height required for raw pixel data");let s=e.format===32?4:3,n=i*A*s;if(t.length<n)throw new Error("Insufficient pixel data");let a=i*A;if(e.format===32)return createImageBitmap(new ImageData(new Uint8ClampedArray(t.buffer,t.byteOffset,a*4),i,A));let o=new Uint8ClampedArray(a*4),h=new Uint32Array(t.buffer,t.byteOffset,Math.floor(t.byteLength/4)),d=new Uint32Array(o.buffer),g=a&-4,I=0,l=0;for(let E=0;E<g;E+=4){let C=h[I++],p=h[I++],B=h[I++];d[l++]=4278190080|C,d[l++]=4278190080|C>>>24|p<<8,d[l++]=4278190080|p>>>16|B<<16,d[l++]=4278190080|B>>>8}let c=g*3,u=g*4;for(let E=g;E<a;E++)o[u]=t[c],o[u+1]=t[c+1],o[u+2]=t[c+2],o[u+3]=255,c+=3,u+=4;return createImageBitmap(new ImageData(o,i,A))}async _decompressZlib(e){try{return await this._decompress(e,"deflate")}catch(t){if(t instanceof RangeError)throw t;return await this._decompress(e,"deflate-raw")}}async _decompress(e,t){let i=Math.min(this._opts.kittySizeLimit,this._opts.pixelLimit*4,this._opts.storageLimit*1e6),A=0,n=new ReadableStream({pull(g){if(A>=e.length){g.close();return}let I=Math.min(A+4096,e.length);g.enqueue(new Uint8Array(e.subarray(A,I))),A=I}}).pipeThrough(new DecompressionStream(t)).getReader(),a=[],o=0;try{for(;;){let{done:g,value:I}=await n.read();if(g)break;if(o+=I.byteLength,o>i)throw await n.cancel().catch(()=>{}),new RangeError("decompressed image exceeds byte limit");a.push(I)}}finally{n.releaseLock()}let h=new Uint8Array(o),d=0;for(let g of a)h.set(g,d),d+=g.length;return h}get images(){return this._kittyStorage.images}get _kittyIdToStorageId(){return this._kittyStorage.kittyIdToStorageId}get pendingTransmissions(){return this._pendingTransmissions}};var U=class U{constructor(e){this._storage=e;this._nextImageId=1;this._images=new Map;this._kittyIdToStorageId=new Map;this._storageIdToKittyId=new Map;this._handleStorageImageDeleted=e=>{let t=this._storageIdToKittyId.get(e);t!==void 0&&(this._kittyIdToStorageId.delete(t),this._storageIdToKittyId.delete(e),this._images.delete(t))};this._addImageOpts={scrolling:!0,layer:"top",zIndex:0,cursorPos:"iip"};this._previousOnImageDeleted=this._storage.onImageDeleted,this._wrappedOnImageDeleted=t=>{this._previousOnImageDeleted?.(t),this._handleStorageImageDeleted(t)},this._storage.onImageDeleted=this._wrappedOnImageDeleted}reset(){this._nextImageId=1,this._images.clear(),this._kittyIdToStorageId.clear(),this._storageIdToKittyId.clear()}dispose(){this.reset(),this._storage.onImageDeleted===this._wrappedOnImageDeleted&&(this._storage.onImageDeleted=this._previousOnImageDeleted)}storeImage(e,t){let i=e??this._nextImageId++,A=this._kittyIdToStorageId.get(i);A!==void 0&&(this._storage.deleteImage(A),this._kittyIdToStorageId.delete(i),this._storageIdToKittyId.delete(A)),!this._images.has(i)&&this._images.size>=U._maxStoredImages&&this._evictUndisplayedImages();let s=this._storage.getLimit()*1e6;this._images.delete(i);let n=0;for(let a of this._images.values())n+=a.data.size;for(let a of[!1,!0])for(let[o,h]of this._images){if(n+t.data.size<=s)break;this._kittyIdToStorageId.has(o)===a&&(n-=h.data.size,this.deleteById(o))}return this._images.set(i,{...t,id:i}),i}addImage(e,t,i,A,s){let n=this._kittyIdToStorageId.get(e);n!==void 0&&this._storageIdToKittyId.delete(n),this._addImageOpts.scrolling=i,this._addImageOpts.layer=A,this._addImageOpts.zIndex=s;let a=this._storage.addImage(t,this._addImageOpts);this._kittyIdToStorageId.set(e,a),this._storageIdToKittyId.set(a,e)}getImage(e){return this._images.get(e)}deleteById(e){this._images.delete(e);let t=this._kittyIdToStorageId.get(e);t!==void 0&&(this._storage.deleteImage(t),this._kittyIdToStorageId.delete(e),this._storageIdToKittyId.delete(t))}deleteAll(){this._images.clear();for(let e of this._kittyIdToStorageId.values())this._storage.deleteImage(e);this._kittyIdToStorageId.clear(),this._storageIdToKittyId.clear()}get images(){return this._images}get kittyIdToStorageId(){return this._kittyIdToStorageId}get lastImageId(){return this._nextImageId-1}_evictUndisplayedImages(){for(let[e]of this._images){if(this._images.size<=U._maxStoredImages/2)break;this._kittyIdToStorageId.has(e)||this._images.delete(e)}}};U._maxStoredImages=256;var re=U;var y=x(j());var he=x(je()),Ve=x(xe());var Nt=4194304,K=y.PALETTE_ANSI_256;K.set(y.PALETTE_VT340_COLOR);var Ht=2,Re=new Map,ve=!1;function Ft(r){ve||(ve=!0,(0,he.DecoderAsync)({memoryLimit:r,palette:K}).then(e=>$e(e,r),()=>{ve=!1}))}function Gt(r){return Re.get(r)?.pop()??new he.Decoder({memoryLimit:r,palette:K})}function $e(r,e){r.memoryUsage>Nt&&r.release();let t=Re.get(e)??[];t.length<Ht&&(t.push(r),Re.set(e,t))}var oe=class{constructor(e,t,i){this._opts=e;this._storage=t;this._coreTerminal=i;this._size=0;this._aborted=!1;this._decMemoryLimit=0;this._palette=new Uint32Array(Ve.LIMITS.PALETTE_SIZE);this._palette.set(K),Ft(this._opts.pixelLimit*4)}reset(){this._returnDecoder(),this._palette.fill(0),this._palette.set(K)}hook(e){this._size=0,this._aborted=!1,this._returnDecoder();let t=this._opts.pixelLimit*4;try{this._dec=Gt(t)}catch(A){console.warn(`SIXEL: could not allocate decoder - ${A}`),this._aborted=!0;return}this._decMemoryLimit=t;let i=e.params[1]===1?0:Ut(this._coreTerminal._core._inputHandler._curAttrData,this._coreTerminal._core._themeService?.colors);this._dec.init(i,this._palette,this._opts.sixelPaletteLimit)}_returnDecoder(){let e=this._dec;e&&(this._dec=void 0,this._palette.set(e.palette),$e(e,this._decMemoryLimit))}put(e,t,i){if(!(this._aborted||!this._dec)){if(this._size+=i-t,this._size>this._opts.sixelSizeLimit){console.warn("SIXEL: too much data, aborting"),this._aborted=!0,this._dec.release();return}try{this._dec.decode(e,t,i)}catch(A){console.warn(`SIXEL: error while decoding image - ${A}`),this._aborted=!0,this._dec.release()}}}unhook(e){try{return this._unhook(e)}finally{this._returnDecoder()}}_unhook(e){if(this._aborted||!e||!this._dec)return!0;let t=this._dec.width,i=this._dec.height;if(!t||!i)return i&&this._storage.advanceCursor(i),!0;let A=D.createCanvas(void 0,t,i);return A.getContext("2d")?.putImageData(new ImageData(this._dec.data8,t,i),0,0),this._storage.addImage(A),!0}};function Ut(r,e){let t=0;if(!e)return t;if(r.isInverse())if(r.isFgDefault())t=ae(e.foreground.rgba);else if(r.isFgRGB()){let i=r.constructor.toColorRGB(r.getFgColor());t=(0,y.toRGBA8888)(...i)}else t=ae(e.ansi[r.getFgColor()].rgba);else if(r.isBgDefault())t=ae(e.background.rgba);else if(r.isBgRGB()){let i=r.constructor.toColorRGB(r.getBgColor());t=(0,y.toRGBA8888)(...i)}else t=ae(e.ansi[r.getBgColor()].rgba);return t}function ae(r){return y.BIG_ENDIAN?r:(r&255)<<24|(r>>>8&255)<<16|(r>>>16&255)<<8|r>>>24&255}var de=class{constructor(e,t,i,A){this._storage=e;this._opts=t;this._renderer=i;this._terminal=A;this._addImageOpts={scrolling:!0,layer:"top",zIndex:0,cursorPos:"vt340"}}addImage(e){this._addImageOpts.scrolling=this._opts.sixelScrolling,this._storage.addImage(e,this._addImageOpts)}advanceCursor(e){if(this._opts.sixelScrolling){let t=this._renderer.cellSize;(t.width===-1||t.height===-1)&&(t=w);let i=Math.ceil(e/t.height);for(let A=1;A<i;++A)this._terminal._core._inputHandler.lineFeed()}}};var ge=class{constructor(e){this._storage=e;this._addImageOpts={scrolling:!0,layer:"top",zIndex:0,cursorPos:"iip"}}addImage(e){this._storage.addImage(e,this._addImageOpts)}};var et={enableSizeReports:!0,pixelLimit:16777216,sixelSupport:!0,sixelScrolling:!0,sixelPaletteLimit:4096,sixelSizeLimit:33554432,storageLimit:128,showPlaceholder:!0,iipSupport:!0,iipSizeLimit:33554432,kittySupport:!0,kittySizeLimit:33554432},tt=4096;var it=class{constructor(e){this._disposables=[];this._handlers=new Map;this._onImageAdded=new Z;this.onImageAdded=this._onImageAdded.event;this._opts=Object.assign({},et,e),this._defaultOpts=Object.assign({},et,e)}dispose(){for(let e of this._handlers.values())e.reset();for(let e of this._disposables)e.dispose();this._disposables.length=0,this._handlers.clear(),this._onImageAdded.dispose()}_disposeLater(...e){for(let t of e)this._disposables.push(t)}activate(e){if(this._terminal=e,this._renderer=new D(e),this._storage=new V(e,this._renderer,this._opts),this._storage.onImageAdded=()=>this._onImageAdded.fire(),this._opts.enableSizeReports){let t=e.options.windowOptions??{};t.getWinSizePixels=!0,t.getCellSizePixels=!0,t.getWinSizeChars=!0,e.options.windowOptions=t}if(this._disposeLater(this._renderer,this._storage,e.parser.registerCsiHandler({prefix:"?",final:"h"},t=>this._decset(t)),e.parser.registerCsiHandler({prefix:"?",final:"l"},t=>this._decrst(t)),e.parser.registerCsiHandler({final:"c"},t=>this._da1(t)),e.parser.registerCsiHandler({prefix:"?",final:"S"},t=>this._xtermGraphicsAttributes(t)),e.onRender(t=>this._storage?.render(t)),e.parser.registerCsiHandler({intermediates:"!",final:"p"},()=>this.reset()),e.parser.registerEscHandler({final:"c"},()=>this.reset()),e._core._inputHandler.onRequestReset(()=>this.reset()),e.buffer.onBufferChange(()=>this._storage?.wipeAlternate()),e.onResize(t=>this._storage?.viewportResize(t))),this._opts.sixelSupport){let t=new de(this._storage,this._opts,this._renderer,e),i=new oe(this._opts,t,e);this._handlers.set("sixel",i),this._disposeLater(e._core._inputHandler._parser.registerDcsHandler({final:"q"},i))}if(this._opts.iipSupport){let t=new ge(this._storage),i=new ie(this._opts,this._renderer,t,e);this._handlers.set("iip",i),this._disposeLater(e._core._inputHandler._parser.registerOscHandler(1337,i))}if(this._opts.kittySupport){let t=new re(this._storage),i=new Ae(this._opts,this._renderer,t,e);this._handlers.set("kitty",i),this._disposeLater(t,i,e._core._inputHandler._parser.registerApcHandler({final:"G"},i))}}reset(){this._opts.sixelScrolling=this._defaultOpts.sixelScrolling,this._opts.sixelPaletteLimit=this._defaultOpts.sixelPaletteLimit,this._storage?.reset();for(let e of this._handlers.values())e.reset();return!1}get storageLimit(){return this._storage?.getLimit()||-1}set storageLimit(e){this._storage?.setLimit(e),this._opts.storageLimit=e}get storageUsage(){return this._storage?this._storage.getUsage():-1}get showPlaceholder(){return this._opts.showPlaceholder}set showPlaceholder(e){this._opts.showPlaceholder=e,this._renderer?.showPlaceholder(e)}getImageAtBufferCell(e,t){return this._storage?.getImageAtBufferCell(e,t)}extractTileAtBufferCell(e,t){return this._storage?.extractTileAtBufferCell(e,t)}_report(e){this._terminal?._core.input(e,!1)}_decset(e){for(let t=0;t<e.length;++t)e[t]===80&&(this._opts.sixelScrolling=!1);return!1}_decrst(e){for(let t=0;t<e.length;++t)e[t]===80&&(this._opts.sixelScrolling=!0);return!1}_da1(e){return e[0]?!0:this._opts.sixelSupport?(this._report("\x1B[?62;4;9;22c"),!0):!1}_xtermGraphicsAttributes(e){if(e.length<2)return!0;if(e[0]===1)switch(e[1]){case 1:return this._report(`\x1B[?${e[0]};0;${this._opts.sixelPaletteLimit}S`),!0;case 2:this._opts.sixelPaletteLimit=this._defaultOpts.sixelPaletteLimit,this._report(`\x1B[?${e[0]};0;${this._opts.sixelPaletteLimit}S`);for(let t of this._handlers.values())t.reset();return!0;case 3:return e.length>2&&!(e[2]instanceof Array)&&e[2]<=tt?(this._opts.sixelPaletteLimit=e[2],this._report(`\x1B[?${e[0]};0;${this._opts.sixelPaletteLimit}S`)):this._report(`\x1B[?${e[0]};2S`),!0;case 4:return this._report(`\x1B[?${e[0]};0;${tt}S`),!0;default:return this._report(`\x1B[?${e[0]};2S`),!0}if(e[0]===2)switch(e[1]){case 1:let t=this._renderer?.dimensions?.css.canvas.width,i=this._renderer?.dimensions?.css.canvas.height;if(!t||!i){let s=w;t=(this._terminal?.cols||80)*s.width,i=(this._terminal?.rows||24)*s.height}if(t*i<this._opts.pixelLimit)this._report(`\x1B[?${e[0]};0;${t.toFixed(0)};${i.toFixed(0)}S`);else{let s=Math.floor(Math.sqrt(this._opts.pixelLimit));this._report(`\x1B[?${e[0]};0;${s};${s}S`)}return!0;case 4:let A=Math.floor(Math.sqrt(this._opts.pixelLimit));return this._report(`\x1B[?${e[0]};0;${A};${A}S`),!0;default:return this._report(`\x1B[?${e[0]};2S`),!0}return this._report(`\x1B[?${e[0]};1S`),!0}};export{it as ImageAddon};
|
||
//# sourceMappingURL=addon-image.mjs.map
|
||
diff --git a/lib/addon-image.mjs.map b/lib/addon-image.mjs.map
|
||
index d376d495d729b9d6ed3b2ea1f7a5eeb3960d2697..0092ce32d3298f4416915a9255ddcb777e30b873 100644
|
||
--- a/lib/addon-image.mjs.map
|
||
+++ b/lib/addon-image.mjs.map
|
||
@@ -1,7 +1,7 @@
|
||
{
|
||
"version": 3,
|
||
"sources": ["../../../node_modules/sixel/src/Colors.ts", "../../../node_modules/inwasm-runtime/lib/index.cjs", "../../../node_modules/xterm-wasm-parts/lib/base64/Base64Decoder.wasm.js", "../../../node_modules/xterm-wasm-parts/lib/qoi/QoiDecoder.wasm.js", "../../../node_modules/sixel/src/wasm.ts", "../../../node_modules/sixel/src/Decoder.ts", "../../../src/common/Lifecycle.ts", "../../../src/common/Event.ts", "../src/ImageRenderer.ts", "../src/ImageStorage.ts", "../src/IIPHandler.ts", "../src/IIPHeaderParser.ts", "../src/IIPMetrics.ts", "../src/kitty/KittyGraphicsHandler.ts", "../src/kitty/KittyGraphicsTypes.ts", "../src/kitty/KittyImageStorage.ts", "../src/SixelHandler.ts", "../src/SixelImageStorage.ts", "../src/IIPImageStorage.ts", "../src/ImageAddon.ts"],
|
||
- "sourcesContent": [null, "\"use strict\";\n/**\n * Copyright (c) 2022, 2026 Joerg Breitbart\n * @license MIT\n */\nObject.defineProperty(exports, \"__esModule\", { value: true });\nexports.InWasm = InWasm;\nlet z = (s) => {\n if (Uint8Array.fromBase64)\n return Uint8Array.fromBase64(s);\n if (typeof Buffer !== 'undefined')\n return Buffer.from(s, 'base64');\n const b = atob(s);\n const r = new Uint8Array(b.length);\n for (let i = 0; i < r.length; ++i)\n r[i] = b.charCodeAt(i);\n return r;\n};\nfunction InWasm(def) {\n if (def.d) {\n const { t, s, d } = def;\n let b;\n let m;\n const W = WebAssembly;\n if (t === 0 /* OutputType.INSTANCE */) {\n if (s)\n return (e) => new W.Instance(m || (m = new W.Module(b || (b = z(d)))), e);\n return (e) => m\n ? W.instantiate(m, e)\n : W.instantiate(b || (b = z(d)), e).then(r => (m = r.module) && r.instance);\n }\n if (t === 1 /* OutputType.MODULE */) {\n if (s)\n return () => m || (m = new W.Module(b || (b = z(d))));\n return () => m\n ? Promise.resolve(m)\n : W.compile(b || (b = z(d))).then(r => m = r);\n }\n if (s)\n return () => b || (b = z(d));\n return () => Promise.resolve(b || (b = z(d)));\n }\n if (typeof _wasmCtx === 'undefined')\n throw new Error('must run \"inwasm\"');\n _wasmCtx.add(def);\n}\n//# sourceMappingURL=index.js.map", "\"use strict\";\nObject.defineProperty(exports, \"__esModule\", { value: true });\n/**\n * Copyright (c) 2023, 2026 The xterm.js authors. All rights reserved.\n * @license MIT\n */\nconst inwasm_runtime_1 = require(\"inwasm-runtime\");\n/**\n * wasm base64 decoder.\n */\nconst wasmDecode = (0, inwasm_runtime_1.InWasm)(/*inwasm#828e69684093b2c6:rdef-start:\"decode\"*/{s:1,t:0,d:'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'}/*inwasm#828e69684093b2c6:rdef-end:\"decode\"*/);\n// SIMD version (speedup ~1.4x, not covered by tests yet)\n/*\nconst wasmDecode = InWasm({\n name: 'decode',\n type: OutputType.INSTANCE,\n mode: OutputMode.SYNC,\n srctype: 'Clang-C',\n imports: {\n env: { memory: new WebAssembly.Memory({ initial: 1 }) }\n },\n exports: {\n dec: () => 0,\n end: () => 0\n },\n compile: {\n switches: ['-msimd128', '-Wl,-z,stack-size=0', '-Wl,--stack-first']\n },\n code: `\n #include <wasm_simd128.h>\n typedef struct {\n unsigned int wp;\n unsigned int sp;\n unsigned int dp;\n unsigned int e_size;\n unsigned int dummy[4];\n unsigned char data[0];\n } State;\n\n unsigned int *D0 = (unsigned int *) ${P32.D0 * 4};\n unsigned int *D1 = (unsigned int *) ${P32.D1 * 4};\n unsigned int *D2 = (unsigned int *) ${P32.D2 * 4};\n unsigned int *D3 = (unsigned int *) ${P32.D3 * 4};\n State *state = (State *) ${P32.STATE * 4};\n\n #define packed_byte(x) wasm_i8x16_splat((char) x)\n #define packed_dword(x) wasm_i32x4_splat(x)\n #define masked(x, mask) wasm_v128_and(x, wasm_i32x4_splat(mask))\n\n __attribute__((noinline)) int dec() {\n unsigned int nsp = (state->wp - 1) & ~3;\n unsigned char *src = state->data + state->sp;\n unsigned char *end = state->data + nsp;\n unsigned char *dst = state->data + state->dp;\n unsigned int error = 0;\n\n v128_t err = wasm_i8x16_splat(0);\n unsigned char *end16 = state->data + (nsp & ~15);\n while (src < end16) {\n v128_t data = wasm_v128_load((v128_t *) src);\n\n // wasm-simd rewrite of http://0x80.pl/notesen/2016-01-17-sse-base64-decoding.html#vector-lookup-pshufb\n const v128_t higher_nibble = wasm_u32x4_shr(data, 4) & packed_byte(0x0f);\n const char linv = 1;\n const char hinv = 0;\n\n const v128_t lower_bound_LUT = wasm_i8x16_const(\n // order: 0 1 2 3 4 5 6 7 8 9 a b c d e f\n linv, linv, 0x2b, 0x30,\n 0x41, 0x50, 0x61, 0x70,\n linv, linv, linv, linv,\n linv, linv, linv, linv\n );\n const v128_t upper_bound_LUT = wasm_i8x16_const(\n // order: 0 1 2 3 4 5 6 7 8 9 a b c d e f\n hinv, hinv, 0x2b, 0x39,\n 0x4f, 0x5a, 0x6f, 0x7a,\n hinv, hinv, hinv, hinv,\n hinv, hinv, hinv, hinv\n );\n // the difference between the shift and lower bound\n const v128_t shift_LUT = wasm_i8x16_const(\n // order: 0 1 2 3 4 5 6 7 8 9 a b c d e f\n 0x00, 0x00, 0x3e - 0x2b, 0x34 - 0x30,\n 0x00 - 0x41, 0x0f - 0x50, 0x1a - 0x61, 0x29 - 0x70,\n 0x00, 0x00, 0x00, 0x00,\n 0x00, 0x00, 0x00, 0x00\n );\n\n const v128_t upper_bound = wasm_i8x16_swizzle(upper_bound_LUT, higher_nibble);\n const v128_t lower_bound = wasm_i8x16_swizzle(lower_bound_LUT, higher_nibble);\n\n const v128_t below = wasm_i8x16_lt(data, lower_bound);\n const v128_t above = wasm_i8x16_gt(data, upper_bound);\n const v128_t eq_2f = wasm_i8x16_eq(data, packed_byte(0x2f));\n\n // in_range = not (below or above) or eq_2f\n // outside = not in_range = below or above and not eq_2f (from deMorgan law)\n const v128_t outside = wasm_v128_andnot(eq_2f, above | below);\n err = wasm_v128_or(err, outside);\n\n const v128_t shift = wasm_i8x16_swizzle(shift_LUT, higher_nibble);\n const v128_t t0 = wasm_i8x16_add(data, shift);\n v128_t v = wasm_i8x16_add(t0, wasm_v128_and(eq_2f, packed_byte(-3)));\n\n // pack bytes\n const v128_t ca = masked(v, 0x003f003f);\n const v128_t db = masked(v, 0x3f003f00);\n const v128_t t00 = wasm_v128_or(wasm_u32x4_shr(db, 8), wasm_i32x4_shl(ca, 6));\n v128_t res = wasm_v128_or(wasm_u32x4_shr(t00, 16), wasm_i32x4_shl(t00, 12));\n res = wasm_i8x16_swizzle(res, wasm_i8x16_const(2, 1, 0, 6, 5, 4, 10, 9, 8, 14, 13, 12, 16, 16, 16, 16));\n\n wasm_v128_store((v128_t *) dst, res);\n dst += 12;\n src += 16;\n }\n //if (wasm_i8x16_bitmask(err) != 0) return -1;\n if (wasm_v128_any_true(err)) return -1;\n\n // operate on 4-byte blocks\n while (src < end) {\n error |= *((unsigned int *) dst) = D0[src[0]] | D1[src[1]] | D2[src[2]] | D3[src[3]];\n dst += 3;\n src += 4;\n }\n if (error >> 24) return -1;\n state->sp = nsp;\n state->dp = dst - state->data;\n return 0;\n }\n\n int end() {\n int rem = state->wp - state->sp;\n if (rem > 4 && dec()) return -1;\n rem = state->wp - state->sp;\n if (rem < 2) return -1;\n\n unsigned char *src = state->data + state->sp;\n if (rem == 4) {\n if (src[3] == 61) rem--;\n if (src[2] == 61) rem--;\n }\n unsigned int accu = D0[src[0]] | D1[src[1]];\n int dp = 1;\n if (rem > 2) {\n accu |= D2[src[2]];\n dp++;\n if (rem == 4) {\n accu |= D3[src[3]];\n dp++;\n }\n }\n if (accu >> 24) return -1;\n *((unsigned int *) (state->data + state->dp)) = accu;\n state->dp += dp;\n return 0;\n }\n `\n});\n*/\n// base64 map\nconst MAP = new Uint8Array('ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/'\n .split('')\n .map(el => el.charCodeAt(0)));\n// init decoder maps in LE order\nconst D = new Uint32Array(1024);\nD.fill(0xFF000000);\nfor (let i = 0; i < MAP.length; ++i)\n D[MAP[i]] = i << 2;\nfor (let i = 0; i < MAP.length; ++i)\n D[256 + MAP[i]] = i >> 4 | ((i << 4) & 0xFF) << 8;\nfor (let i = 0; i < MAP.length; ++i)\n D[512 + MAP[i]] = (i >> 2) << 8 | ((i << 6) & 0xFF) << 16;\nfor (let i = 0; i < MAP.length; ++i)\n D[768 + MAP[i]] = i << 16;\nconst EMPTY = new Uint8Array(0);\n/**\n * base64 stream decoder.\n *\n * Features / assumptions:\n * - lazy chunkwise decoding\n * - errors out on any non base64 chars (no support for NL formatted base64)\n * - decodes in wasm\n * - inplace decoding to save memory\n * - supports a keepSize for lazy memory release\n */\nclass Base64Decoder {\n /**\n * @param keepSize Keep the wasm instance below this limit when calling `release()`.\n * @param maxBytes Max allowed bytes to allocate.\n * @param initialBytes Initial bytes to allocate.\n */\n constructor(keepSize, maxBytes, initialBytes) {\n this._inst = null;\n this._ended = true;\n this._bytes = 0;\n this.keepSize = keepSize !== null && keepSize !== void 0 ? keepSize : 1048576 /* Bytes.KEEP */;\n this.maxBytes = maxBytes !== null && maxBytes !== void 0 ? maxBytes : 4294901760 /* Bytes.MAX */;\n this._bytes = initialBytes !== null && initialBytes !== void 0 ? initialBytes : 32768 /* Bytes.INITIAL */;\n if (this._bytes > this.maxBytes || this.maxBytes > 4294901760 /* Bytes.MAX */) {\n throw new Error('invalid byte settings');\n }\n }\n /**\n * Currently decoded bytes (borrowed).\n * Must be accessed before calling `release` or `init`.\n */\n get data8() {\n return this._inst ? this._d.subarray(0, this._m32[1282 /* P32.STATE_DP */]) : EMPTY;\n }\n /**\n * Release memory conditionally based on `keepSize`.\n * If memory gets released, also the wasm instance will be freed and recreated on next `init`,\n * otherwise the instance will be reused.\n */\n release() {\n if (!this._inst)\n return;\n if (this._bytes > this.keepSize) {\n this._inst = this._m32 = this._d = this._mem = null;\n }\n else {\n this._m32[1280 /* P32.STATE_WP */] = 0;\n this._m32[1281 /* P32.STATE_SP */] = 0;\n this._m32[1282 /* P32.STATE_DP */] = 0;\n }\n }\n /**\n * Initializes the decoder for new base64 data.\n * Must be called before doing any decoding attempts.\n * The method will either spawn a new wasm instance or grow\n * the needed memory of an existing instance.\n * @param maxBytes Max allowed bytes to allocate (overwrites ctor value).\n * @param initialBytes Initial bytes to allocate (overwrites ctor value).\n */\n init(maxBytes, initialBytes) {\n this.maxBytes = maxBytes !== null && maxBytes !== void 0 ? maxBytes : this.maxBytes;\n this._bytes = initialBytes !== null && initialBytes !== void 0 ? initialBytes : Math.min(this._bytes, this.maxBytes);\n if (this._bytes > this.maxBytes || this.maxBytes > 4294901760 /* Bytes.MAX */) {\n throw Error('invalid byte settings');\n }\n let m = this._m32;\n const bytes = this._bytes + 5152 /* Bytes._DATA_OFFSET */;\n if (!this._inst) {\n this._mem = new WebAssembly.Memory({ initial: Math.ceil(bytes / 65536) });\n this._inst = wasmDecode({ env: { memory: this._mem } });\n m = new Uint32Array(this._mem.buffer, 0);\n m.set(D, 256 /* P32.D0 */);\n this._d = new Uint8Array(this._mem.buffer, 5152 /* Bytes._DATA_OFFSET */);\n }\n else if (this._mem.buffer.byteLength < bytes) {\n this._mem.grow(Math.ceil((bytes - this._mem.buffer.byteLength) / 65536));\n m = new Uint32Array(this._mem.buffer, 0);\n this._d = new Uint8Array(this._mem.buffer, 5152 /* Bytes._DATA_OFFSET */);\n }\n m[1280 /* P32.STATE_WP */] = 0;\n m[1281 /* P32.STATE_SP */] = 0;\n m[1282 /* P32.STATE_DP */] = 0;\n this._m32 = m;\n this._ended = false;\n }\n /**\n * Realloc memory. Realloc only happens, if the requested\n * size doesn't fit in the current memory.\n * The new size will be capped by `maxBytes`.\n * @param requested Bytes to be stored.\n */\n _realloc(requested) {\n const needed = this._m32[1280 /* P32.STATE_WP */] + requested;\n if (this._bytes < needed) {\n if (needed > this.maxBytes) {\n return -3 /* DecodeStatus.SIZE_EXCEEDED */;\n }\n let newSize = this._bytes;\n while ((newSize *= 2) < needed) { }\n newSize = Math.min(newSize, this.maxBytes);\n if (newSize < needed) {\n return -3 /* DecodeStatus.SIZE_EXCEEDED */;\n }\n if (newSize + 5152 /* Bytes._DATA_OFFSET */ > this._mem.buffer.byteLength) {\n const addPages = Math.ceil((newSize + 5152 /* Bytes._DATA_OFFSET */ - this._mem.buffer.byteLength) / 65536);\n this._mem.grow(addPages);\n this._m32 = new Uint32Array(this._mem.buffer, 0);\n this._d = new Uint8Array(this._mem.buffer, 5152 /* Bytes._DATA_OFFSET */);\n }\n this._bytes = newSize;\n }\n return 0 /* DecodeStatus.OK */;\n }\n /**\n * Put bytes in `data` into the decoder.\n * Additionally decodes the payload, if it reached 2^17 bytes.\n * The return value indicates the type of issue.\n * @param data Bytes to be loaded.\n */\n put(data) {\n if (!this._inst || this._ended) {\n return -2 /* DecodeStatus.NOT_INITIALIZED */;\n }\n if (this._realloc(data.length)) {\n return -3 /* DecodeStatus.SIZE_EXCEEDED */;\n }\n const m = this._m32;\n this._d.set(data, m[1280 /* P32.STATE_WP */]);\n m[1280 /* P32.STATE_WP */] += data.length;\n // max chunk in input handler is 2^17, try to run in \"tandem mode\"\n return m[1280 /* P32.STATE_WP */] - m[1281 /* P32.STATE_SP */] >= 131072\n ? this._inst.exports.dec()\n : 0 /* DecodeStatus.OK */;\n }\n /**\n * End the current decoding.\n * Also decodes leftover payload from previous put calls.\n */\n end() {\n this._ended = true;\n return this._inst\n ? this._inst.exports.end()\n : -2 /* DecodeStatus.NOT_INITIALIZED */;\n }\n /**\n * Bytes loaded into the decoder.\n */\n get loadedBytes() {\n return this._inst\n ? this._m32[1280 /* P32.STATE_WP */]\n : 0;\n }\n /**\n * Free bytes to feed to the decoder.\n */\n get freeBytes() {\n return this._inst\n ? this.maxBytes - this._m32[1280 /* P32.STATE_WP */]\n : 0;\n }\n}\nexports.default = Base64Decoder;\n//# sourceMappingURL=Base64Decoder.wasm.js.map", "\"use strict\";\nObject.defineProperty(exports, \"__esModule\", { value: true });\n/**\n * Copyright (c) 2023 The xterm.js authors. All rights reserved.\n * @license MIT\n */\nconst inwasm_runtime_1 = require(\"inwasm-runtime\");\nconst wasmQoiDecode = (0, inwasm_runtime_1.InWasm)(/*inwasm#459f9e1bfb80b1a8:rdef-start:\"qoi_decode\"*/{s:1,t:0,d:'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'}/*inwasm#459f9e1bfb80b1a8:rdef-end:\"qoi_decode\"*/);\nclass QoiDecoder {\n constructor(keepSize) {\n this.keepSize = keepSize;\n this.width = 0;\n this.height = 0;\n }\n decode(d) {\n this.width = d[4] << 24 | d[5] << 16 | d[6] << 8 | d[7];\n this.height = d[8] << 24 | d[9] << 16 | d[10] << 8 | d[11];\n const pixels = this.width * this.height;\n const ib = pixels * 4;\n const dl = d.length;\n /**\n * byte/offset calculation:\n * To save some memory we dont reserve full memory for decoded + encoded,\n * but place encoded at the end of decoded plus 50% security distance\n * to avoid reads before writes positions:\n *\n * encoded < decoded (good compression)\n * enc ####################\n * dec #######################################\n * ^ ^\n * DST_P CHUNK_P\n *\n * encoded > decoded (degenerated compression, should not happen)\n * enc ##############################\n * dec ####################\n * ^ ^\n * DST_P CHUNK_P\n *\n * There is still a chance for overlapping r/w positions in case the compressed\n * data has very different pixel progression, yet the 50% security distance\n * should deal with that, as QOI will bloat data by 25% at max (RGB -> OP byte + RGB).\n * Since we always assume RGBA at decoding stage, the possible bloat reduces to 20% at max.\n */\n const bytes = Math.max(ib, dl) + (Math.min(ib, dl) >> 1) + 4096;\n if (!this._inst) {\n this._mem = new WebAssembly.Memory({ initial: Math.ceil(bytes / 65536) });\n this._inst = wasmQoiDecode({ env: { memory: this._mem } });\n }\n else if (this._mem.buffer.byteLength < bytes) {\n this._mem.grow(Math.ceil((bytes - this._mem.buffer.byteLength) / 65536));\n this._d = null;\n }\n if (!this._d) {\n this._d = new Uint8Array(this._mem.buffer);\n }\n // put src data at the end of memory, also align to 256\n const chunkP = (this._mem.buffer.byteLength - dl) & ~0xFF;\n this._d.set(d, chunkP);\n this._inst.exports.dec(chunkP, dl, pixels);\n return this._d.subarray(1024 /* P8.DST_P */, 1024 /* P8.DST_P */ + ib);\n }\n release() {\n if (!this._inst)\n return;\n if (this._mem.buffer.byteLength > this.keepSize) {\n this._inst = this._d = this._mem = null;\n }\n }\n}\nexports.default = QoiDecoder;\n//# sourceMappingURL=QoiDecoder.wasm.js.map", null, null, "/**\n * Copyright (c) 2024-2026 The xterm.js authors. All rights reserved.\n * @license MIT\n *\n * Minimal lifecycle utilities for xterm.js core.\n * Simplified from VS Code's lifecycle.ts - no tracking/leak detection.\n */\n\nexport interface IDisposable {\n dispose(): void;\n}\n\nexport function toDisposable(fn: () => void): IDisposable {\n return { dispose: fn };\n}\n\nexport function dispose<T extends IDisposable>(disposable: T): T;\nexport function dispose<T extends IDisposable>(disposable: T | undefined): T | undefined;\nexport function dispose<T extends IDisposable>(disposables: T[]): T[];\nexport function dispose<T extends IDisposable>(arg: T | T[] | undefined): T | T[] | undefined {\n if (!arg) {\n return arg;\n }\n if (Array.isArray(arg)) {\n for (const d of arg) {\n d.dispose();\n }\n return [];\n }\n arg.dispose();\n return arg;\n}\n\nexport function combinedDisposable(...disposables: IDisposable[]): IDisposable {\n return toDisposable(() => dispose(disposables));\n}\n\nexport class DisposableStore implements IDisposable {\n private readonly _disposables = new Set<IDisposable>();\n private _isDisposed = false;\n\n public get isDisposed(): boolean {\n return this._isDisposed;\n }\n\n public add<T extends IDisposable>(o: T): T {\n if (this._isDisposed) {\n o.dispose();\n } else {\n this._disposables.add(o);\n }\n return o;\n }\n\n public dispose(): void {\n if (this._isDisposed) {\n return;\n }\n this._isDisposed = true;\n for (const d of this._disposables) {\n d.dispose();\n }\n this._disposables.clear();\n }\n\n public clear(): void {\n for (const d of this._disposables) {\n d.dispose();\n }\n this._disposables.clear();\n }\n}\n\nexport abstract class Disposable implements IDisposable {\n public static readonly None: IDisposable = Object.freeze({ dispose() { } });\n\n protected readonly _store = new DisposableStore();\n\n public dispose(): void {\n this._store.dispose();\n }\n\n protected _register<T extends IDisposable>(o: T): T {\n return this._store.add(o);\n }\n}\n\nexport class MutableDisposable<T extends IDisposable> implements IDisposable {\n private _value: T | undefined;\n private _isDisposed = false;\n\n public get value(): T | undefined {\n return this._isDisposed ? undefined : this._value;\n }\n\n public set value(value: T | undefined) {\n if (this._isDisposed || value === this._value) {\n return;\n }\n this._value?.dispose();\n this._value = value;\n }\n\n public clear(): void {\n this.value = undefined;\n }\n\n public dispose(): void {\n this._isDisposed = true;\n this._value?.dispose();\n this._value = undefined;\n }\n}\n", "/**\n * Copyright (c) 2024-2026 The xterm.js authors. All rights reserved.\n * @license MIT\n *\n * Minimal event utilities for xterm.js core.\n * Simplified from VS Code's event.ts - no leak detection/profiling.\n */\n\nimport { IDisposable, DisposableStore, toDisposable } from './Lifecycle';\n\nexport interface IEvent<T> {\n (listener: (e: T) => any, thisArgs?: any, disposables?: IDisposable[] | DisposableStore): IDisposable;\n}\n\nexport class Emitter<T> {\n private _listeners: { fn: (e: T) => any, thisArgs: any }[] = [];\n private _disposed = false;\n private _event: IEvent<T> | undefined;\n\n public get event(): IEvent<T> {\n if (this._event) {\n return this._event;\n }\n this._event = (listener: (e: T) => any, thisArgs?: any, disposables?: IDisposable[] | DisposableStore) => {\n if (this._disposed) {\n return toDisposable(() => {});\n }\n\n const entry = { fn: listener, thisArgs };\n this._listeners = this._listeners.slice();\n this._listeners.push(entry);\n\n const result = toDisposable(() => {\n const idx = this._listeners.indexOf(entry);\n if (idx !== -1) {\n this._listeners = this._listeners.slice();\n this._listeners.splice(idx, 1);\n }\n });\n\n if (disposables) {\n if (Array.isArray(disposables)) {\n disposables.push(result);\n } else {\n disposables.add(result);\n }\n }\n\n return result;\n };\n return this._event;\n }\n\n public fire(event: T): void {\n if (this._disposed || !this._listeners.length) {\n return;\n }\n if (this._listeners.length === 1) {\n this._listeners[0].fn.call(this._listeners[0].thisArgs, event);\n return;\n }\n const listeners = this._listeners;\n for (let i = 0, len = listeners.length; i < len; ++i) {\n listeners[i].fn.call(listeners[i].thisArgs, event);\n }\n }\n\n public dispose(): void {\n if (this._disposed) {\n return;\n }\n this._disposed = true;\n this._listeners.length = 0;\n }\n}\n\nexport namespace EventUtils {\n export function forward<T>(from: IEvent<T>, to: Emitter<T>): IDisposable {\n return from(e => to.fire(e));\n }\n\n export function map<I, O>(event: IEvent<I>, map: (i: I) => O): IEvent<O> {\n return (listener: (e: O) => any, thisArgs?: any, disposables?: IDisposable[] | DisposableStore) => {\n return event(i => listener.call(thisArgs, map(i)), undefined, disposables);\n };\n }\n\n export function any<T>(...events: IEvent<T>[]): IEvent<T>;\n export function any(...events: IEvent<any>[]): IEvent<void>;\n export function any<T>(...events: IEvent<T>[]): IEvent<T> {\n return (listener: (e: T) => any, thisArgs?: any, disposables?: IDisposable[] | DisposableStore) => {\n const store = new DisposableStore();\n for (const event of events) {\n store.add(event(e => listener.call(thisArgs, e)));\n }\n if (disposables) {\n if (Array.isArray(disposables)) {\n disposables.push(store);\n } else {\n disposables.add(store);\n }\n }\n return store;\n };\n }\n\n export function runAndSubscribe<T>(event: IEvent<T>, handler: (e: T) => void, initial: T): IDisposable;\n export function runAndSubscribe<T>(event: IEvent<T>, handler: (e: T | undefined) => void): IDisposable;\n export function runAndSubscribe<T>(event: IEvent<T>, handler: (e: T | undefined) => void, initial?: T): IDisposable {\n handler(initial);\n return event(e => handler(e));\n }\n}\n", "/**\n * Copyright (c) 2020 The xterm.js authors. All rights reserved.\n * @license MIT\n */\n\nimport { toRGBA8888 } from 'sixel/lib/Colors';\nimport { IDisposable } from '@xterm/xterm';\nimport { ICellSize, ImageLayer, ITerminalExt, IImageSpec, IRenderDimensions, IRenderService } from './Types';\nimport { Disposable, MutableDisposable, toDisposable } from 'common/Lifecycle';\n\nconst enum Constants {\n PLACEHOLDER_LENGTH = 4096,\n PLACEHOLDER_HEIGHT = 24\n}\n\n/**\n * ImageRenderer - terminal frontend extension:\n * - provide primitives for canvas, ImageData, Bitmap (static)\n * - add canvas layer to DOM (browser only for now)\n * - draw image tiles onRender\n */\nexport class ImageRenderer extends Disposable implements IDisposable {\n /** @deprecated Kept for backward compat \u2014 points to top layer canvas. */\n public get canvas(): HTMLCanvasElement | undefined { return this._layers.get('top')?.canvas; }\n private _layers = new Map<ImageLayer, CanvasRenderingContext2D>();\n private _placeholder: HTMLCanvasElement | undefined;\n private _placeholderBitmap: ImageBitmap | undefined;\n private _optionsRefresh = this._register(new MutableDisposable());\n private _oldOpen: ((parent: HTMLElement) => void) | undefined;\n private _renderService: IRenderService | undefined;\n private _oldSetRenderer: ((renderer: any) => void) | undefined;\n\n // drawing primitive - canvas\n public static createCanvas(localDocument: Document | undefined, width: number, height: number): HTMLCanvasElement {\n /**\n * NOTE: We normally dont care, from which document the canvas\n * gets created, so we can fall back to global document,\n * if the terminal has no document associated yet.\n * This way early image loads before calling .open keep working\n * (still discouraged though, as the metrics will be screwed up).\n * Only the DOM output canvas should be on the terminal's document,\n * which gets explicitly checked in `insertLayerToDom`.\n */\n const canvas = (localDocument ?? document).createElement('canvas');\n canvas.width = width | 0;\n canvas.height = height | 0;\n return canvas;\n }\n\n // drawing primitive - ImageData with optional buffer\n public static createImageData(ctx: CanvasRenderingContext2D, width: number, height: number, buffer?: ArrayBuffer): ImageData {\n if (typeof ImageData !== 'function') {\n const imgData = ctx.createImageData(width, height);\n if (buffer) {\n imgData.data.set(new Uint8ClampedArray(buffer, 0, width * height * 4));\n }\n return imgData;\n }\n return buffer\n ? new ImageData(new Uint8ClampedArray(buffer, 0, width * height * 4), width, height)\n : new ImageData(width, height);\n }\n\n // drawing primitive - ImageBitmap\n public static createImageBitmap(img: ImageBitmapSource): Promise<ImageBitmap | undefined> {\n if (typeof createImageBitmap !== 'function') {\n return Promise.resolve(undefined);\n }\n return createImageBitmap(img);\n }\n\n\n constructor(private _terminal: ITerminalExt) {\n super();\n this._oldOpen = this._terminal._core.open;\n this._terminal._core.open = (parent: HTMLElement): void => {\n this._oldOpen?.call(this._terminal._core, parent);\n this._open();\n };\n if (this._terminal._core.screenElement) {\n this._open();\n }\n // hack to spot fontSize changes\n this._optionsRefresh.value = this._terminal._core.optionsService.onOptionChange(option => {\n if (option === 'fontSize') {\n this.rescaleCanvas();\n this._renderService?.refreshRows(0, this._terminal.rows);\n }\n });\n this._register(toDisposable(() => {\n this.removeLayerFromDom();\n this.removeLayerFromDom('bottom');\n if (this._terminal._core && this._oldOpen) {\n this._terminal._core.open = this._oldOpen;\n this._oldOpen = undefined;\n }\n if (this._renderService && this._oldSetRenderer) {\n this._renderService.setRenderer = this._oldSetRenderer;\n this._oldSetRenderer = undefined;\n }\n this._renderService = undefined;\n this._layers.clear();\n this._placeholderBitmap?.close();\n this._placeholderBitmap = undefined;\n this._placeholder = undefined;\n }));\n }\n\n /**\n * Enable the placeholder.\n */\n public showPlaceholder(value: boolean): void {\n if (value) {\n if (!this._placeholder && this.cellSize.height !== -1) {\n this._createPlaceHolder(Math.max(this.cellSize.height + 1, Constants.PLACEHOLDER_HEIGHT));\n }\n } else {\n this._placeholderBitmap?.close();\n this._placeholderBitmap = undefined;\n this._placeholder = undefined;\n }\n this._renderService?.refreshRows(0, this._terminal.rows);\n }\n\n /**\n * Dimensions of the terminal.\n * Forwarded from internal render service.\n */\n public get dimensions(): IRenderDimensions | undefined {\n return this._terminal.dimensions;\n }\n\n /**\n * Current cell size (float).\n */\n public get cellSize(): ICellSize {\n return {\n width: this.dimensions?.css.cell.width || -1,\n height: this.dimensions?.css.cell.height || -1\n };\n }\n\n /**\n * Clear a region of the image layer canvas.\n */\n public clearLines(start: number, end: number, layer?: ImageLayer): void {\n const y = start * (this.dimensions?.css.cell.height || 0);\n const w = this.dimensions?.css.canvas.width || 0;\n const h = (end + 1 - start) * (this.dimensions?.css.cell.height || 0);\n if (!layer || layer === 'top') {\n this._layers.get('top')?.clearRect(0, y, w, h);\n }\n if (!layer || layer === 'bottom') {\n this._layers.get('bottom')?.clearRect(0, y, w, h);\n }\n }\n\n /**\n * Clear whole image canvas.\n */\n public clearAll(layer?: ImageLayer): void {\n if (!layer || layer === 'top') {\n const ctx = this._layers.get('top');\n ctx?.clearRect(0, 0, ctx.canvas.width, ctx.canvas.height);\n }\n if (!layer || layer === 'bottom') {\n const ctx = this._layers.get('bottom');\n ctx?.clearRect(0, 0, ctx.canvas.width, ctx.canvas.height);\n }\n }\n\n /**\n * Draw neighboring tiles on the image layer canvas.\n */\n public draw(imgSpec: IImageSpec, tileId: number, col: number, row: number, count: number = 1): void {\n const ctx = this._layers.get(imgSpec.layer);\n if (!ctx) {\n return;\n }\n const { width, height } = this.cellSize;\n\n // Don't try to draw anything, if we cannot get valid renderer metrics.\n if (width === -1 || height === -1) {\n return;\n }\n\n this._rescaleImage(imgSpec, width, height);\n const img = imgSpec.actual!;\n const cols = Math.ceil(img.width / width);\n\n const sx = (tileId % cols) * width;\n const sy = Math.floor(tileId / cols) * height;\n const dx = col * width;\n const dy = row * height;\n\n // safari bug: never access image source out of bounds\n const finalWidth = count * width + sx > img.width ? img.width - sx : count * width;\n const finalHeight = sy + height > img.height ? img.height - sy : height;\n\n // Floor all pixel offsets to get stable tile mapping without any overflows.\n // Note: For not pixel perfect aligned cells like in the DOM renderer\n // this will move a tile slightly to the top/left (subpixel range, thus ignore it).\n // FIX #34: avoid striping on displays with pixelDeviceRatio != 1 by ceiling height and width\n ctx.drawImage(\n img,\n Math.floor(sx), Math.floor(sy), Math.ceil(finalWidth), Math.ceil(finalHeight),\n Math.floor(dx), Math.floor(dy), Math.ceil(finalWidth), Math.ceil(finalHeight)\n );\n }\n\n /**\n * Extract a single tile from an image.\n */\n public extractTile(imgSpec: IImageSpec, tileId: number): HTMLCanvasElement | undefined {\n const { width, height } = this.cellSize;\n // Don't try to draw anything, if we cannot get valid renderer metrics.\n if (width === -1 || height === -1) {\n return;\n }\n this._rescaleImage(imgSpec, width, height);\n const img = imgSpec.actual!;\n const cols = Math.ceil(img.width / width);\n const sx = (tileId % cols) * width;\n const sy = Math.floor(tileId / cols) * height;\n const finalWidth = width + sx > img.width ? img.width - sx : width;\n const finalHeight = sy + height > img.height ? img.height - sy : height;\n\n const canvas = ImageRenderer.createCanvas(this.document, finalWidth, finalHeight);\n const ctx = canvas.getContext('2d');\n if (ctx) {\n ctx.drawImage(\n img,\n Math.floor(sx), Math.floor(sy), Math.floor(finalWidth), Math.floor(finalHeight),\n 0, 0, Math.floor(finalWidth), Math.floor(finalHeight)\n );\n return canvas;\n }\n }\n\n /**\n * Draw a line with placeholder on the image layer canvas.\n */\n public drawPlaceholder(col: number, row: number, count: number = 1): void {\n const ctx = this._layers.get('top');\n if (ctx) {\n const { width, height } = this.cellSize;\n\n // Don't try to draw anything, if we cannot get valid renderer metrics.\n if (width === -1 || height === -1) {\n return;\n }\n\n if (!this._placeholder) {\n this._createPlaceHolder(Math.max(height + 1, Constants.PLACEHOLDER_HEIGHT));\n } else if (height >= this._placeholder!.height) {\n this._createPlaceHolder(height + 1);\n }\n if (!this._placeholder) return;\n ctx.drawImage(\n this._placeholderBitmap ?? this._placeholder!,\n col * width,\n (row * height) % 2 ? 0 : 1, // needs %2 offset correction\n width * count,\n height,\n col * width,\n row * height,\n width * count,\n height\n );\n }\n }\n\n /**\n * Rescale image layer canvas if needed.\n * Checked once from `ImageStorage.render`.\n */\n public rescaleCanvas(): void {\n const w = this.dimensions?.css.canvas.width || 0;\n const h = this.dimensions?.css.canvas.height || 0;\n for (const ctx of this._layers.values()) {\n if (ctx.canvas.width !== w || ctx.canvas.height !== h) {\n ctx.canvas.width = w;\n ctx.canvas.height = h;\n }\n }\n }\n\n /**\n * Rescale image in storage if needed.\n */\n private _rescaleImage(spec: IImageSpec, currentWidth: number, currentHeight: number): void {\n if (currentWidth === spec.actualCellSize.width && currentHeight === spec.actualCellSize.height) {\n return;\n }\n const { width: originalWidth, height: originalHeight } = spec.origCellSize;\n if (currentWidth === originalWidth && currentHeight === originalHeight) {\n spec.actual = spec.orig;\n spec.actualCellSize.width = originalWidth;\n spec.actualCellSize.height = originalHeight;\n return;\n }\n const canvas = ImageRenderer.createCanvas(\n this.document,\n Math.ceil(spec.orig!.width * currentWidth / originalWidth),\n Math.ceil(spec.orig!.height * currentHeight / originalHeight)\n );\n const ctx = canvas.getContext('2d');\n if (ctx) {\n ctx.drawImage(spec.orig!, 0, 0, canvas.width, canvas.height);\n spec.actual = canvas;\n spec.actualCellSize.width = currentWidth;\n spec.actualCellSize.height = currentHeight;\n }\n }\n\n /**\n * Lazy init for the renderer.\n */\n private _open(): void {\n this._renderService = this._terminal._core._renderService;\n this._oldSetRenderer = this._renderService.setRenderer.bind(this._renderService);\n this._renderService.setRenderer = (renderer: any) => {\n for (const key of [...this._layers.keys()]) {\n this.removeLayerFromDom(key);\n }\n this._oldSetRenderer?.call(this._renderService, renderer);\n };\n }\n\n public insertLayerToDom(layer: ImageLayer = 'top'): void {\n // make sure that the terminal is attached to a document and to DOM\n if (!this.document || !this._terminal._core.screenElement) {\n console.warn('image addon: cannot insert output canvas to DOM, missing document or screenElement');\n return;\n }\n if (this._layers.has(layer)) {\n return;\n }\n const canvas = ImageRenderer.createCanvas(\n this.document, this.dimensions?.css.canvas.width || 0,\n this.dimensions?.css.canvas.height || 0\n );\n canvas.classList.add(`xterm-image-layer-${layer}`);\n const screenElement = this._terminal._core.screenElement;\n // Use isolation to create a stacking context without overriding z-index,\n // which would conflict with integrators (e.g. VS Code) that set their\n // own z-index on the screen element.\n screenElement.style.isolation = 'isolate';\n if (layer === 'bottom') {\n // Use z-index:-1 so it paints behind non-positioned text elements.\n // The screen element needs to be a stacking context (via isolation)\n // to contain the negative z-index, otherwise it would go behind the\n // entire terminal.\n canvas.style.zIndex = '-1';\n screenElement.insertBefore(canvas, screenElement.firstChild);\n } else {\n // Explicit z-index ensures the image canvas reliably stacks above\n // the text layer (DOM renderer rows). z-index: 0 is below the\n // selection overlay (z-index: 1).\n canvas.style.zIndex = '0';\n screenElement.appendChild(canvas);\n }\n const ctx = canvas.getContext('2d', { alpha: true });\n if (!ctx) {\n canvas.remove();\n return;\n }\n this._layers.set(layer, ctx);\n this.clearAll(layer);\n }\n\n public removeLayerFromDom(layer: ImageLayer = 'top'): void {\n const ctx = this._layers.get(layer);\n if (ctx) {\n ctx.canvas.remove();\n this._layers.delete(layer);\n }\n }\n\n public hasLayer(layer: ImageLayer): boolean {\n return this._layers.has(layer);\n }\n\n private _createPlaceHolder(height: number = Constants.PLACEHOLDER_HEIGHT): void {\n this._placeholderBitmap?.close();\n this._placeholderBitmap = undefined;\n\n // create blueprint to fill placeholder with\n const bWidth = 32; // must be 2^n\n const blueprint = ImageRenderer.createCanvas(this.document, bWidth, height);\n const ctx = blueprint.getContext('2d', { alpha: false });\n if (!ctx) return;\n const imgData = ImageRenderer.createImageData(ctx, bWidth, height);\n const d32 = new Uint32Array(imgData.data.buffer);\n const black = toRGBA8888(0, 0, 0);\n const white = toRGBA8888(255, 255, 255);\n d32.fill(black);\n for (let y = 0; y < height; ++y) {\n const shift = y % 2;\n const offset = y * bWidth;\n for (let x = 0; x < bWidth; x += 2) {\n d32[offset + x + shift] = white;\n }\n }\n ctx.putImageData(imgData, 0, 0);\n\n // create placeholder line, width aligned to blueprint width\n const width = (screen.width + bWidth - 1) & ~(bWidth - 1) || Constants.PLACEHOLDER_LENGTH;\n this._placeholder = ImageRenderer.createCanvas(this.document, width, height);\n const ctx2 = this._placeholder.getContext('2d', { alpha: false });\n if (!ctx2) {\n this._placeholder = undefined;\n return;\n }\n for (let i = 0; i < width; i += bWidth) {\n ctx2.drawImage(blueprint, i, 0);\n }\n ImageRenderer.createImageBitmap(this._placeholder).then(bitmap => this._placeholderBitmap = bitmap);\n }\n\n public get document(): Document | undefined {\n return this._terminal._core._coreBrowserService?.window.document;\n }\n}\n", "/**\n * Copyright (c) 2020 The xterm.js authors. All rights reserved.\n * @license MIT\n */\n\nimport { IDisposable } from '@xterm/xterm';\nimport { ImageRenderer } from './ImageRenderer';\nimport {\n ITerminalExt, IExtendedAttrsImage, IImageAddonOptions, IImageSpec,\n IBufferLineExt, BgFlags, Cell, Content, ICellSize, ExtFlags, Attributes,\n UnderlineStyle, IAddImageOpts\n} from './Types';\n\n\n// fallback default cell size\nexport const CELL_SIZE_DEFAULT: ICellSize = {\n width: 7,\n height: 14\n};\n\n/**\n * Extend extended attribute to also hold image tile information.\n *\n * Object definition is copied from base repo to fully mimick its behavior.\n * Image data is added as additional public properties `imageId` and `tileId`.\n */\nclass ExtendedAttrsImage implements IExtendedAttrsImage {\n private _ext: number = 0;\n public get ext(): number {\n if (this._urlId) {\n return (\n (this._ext & ~ExtFlags.UNDERLINE_STYLE) |\n (this.underlineStyle << 26)\n );\n }\n return this._ext;\n }\n public set ext(value: number) { this._ext = value; }\n\n public get underlineStyle(): UnderlineStyle {\n // Always return the URL style if it has one\n if (this._urlId) {\n return UnderlineStyle.DASHED;\n }\n return (this._ext & ExtFlags.UNDERLINE_STYLE) >> 26;\n }\n public set underlineStyle(value: UnderlineStyle) {\n this._ext &= ~ExtFlags.UNDERLINE_STYLE;\n this._ext |= (value << 26) & ExtFlags.UNDERLINE_STYLE;\n }\n\n public get underlineColor(): number {\n return this._ext & (Attributes.CM_MASK | Attributes.RGB_MASK);\n }\n public set underlineColor(value: number) {\n this._ext &= ~(Attributes.CM_MASK | Attributes.RGB_MASK);\n this._ext |= value & (Attributes.CM_MASK | Attributes.RGB_MASK);\n }\n\n public get underlineVariantOffset(): number {\n const val = (this._ext & ExtFlags.VARIANT_OFFSET) >> 29;\n if (val < 0) {\n return val ^ 0xFFFFFFF8;\n }\n return val;\n }\n public set underlineVariantOffset(value: number) {\n this._ext &= ~ExtFlags.VARIANT_OFFSET;\n this._ext |= (value << 29) & ExtFlags.VARIANT_OFFSET;\n }\n\n private _urlId: number = 0;\n public get urlId(): number {\n return this._urlId;\n }\n public set urlId(value: number) {\n this._urlId = value;\n }\n\n constructor(\n ext: number = 0,\n urlId: number = 0,\n public imageId = -1,\n public tileId = -1\n ) {\n this._ext = ext;\n this._urlId = urlId;\n }\n\n public clone(): IExtendedAttrsImage {\n /**\n * Technically we dont need a clone variant of ExtendedAttrsImage,\n * as we never clone a cell holding image data.\n * Note: Clone is only meant to be used by the InputHandler for\n * sticky attributes, which is never the case for image data.\n * We still provide a proper clone method to reflect the full ext attr\n * state in case there are future use cases for clone.\n */\n return new ExtendedAttrsImage(this._ext, this._urlId, this.imageId, this.tileId);\n }\n\n public isEmpty(): boolean {\n return this.underlineStyle === UnderlineStyle.NONE && this._urlId === 0 && this.imageId === -1;\n }\n}\nconst EMPTY_ATTRS = new ExtendedAttrsImage();\n\n\n/**\n * ImageStorage - extension of CoreTerminal:\n * - hold image data\n * - write/read image data to/from buffer\n *\n * TODO: image composition for overwrites\n */\nexport class ImageStorage implements IDisposable {\n // storage\n private _images: Map<number, IImageSpec> = new Map();\n // last used id\n private _lastId = 0;\n // last evicted id\n private _lowestId = 0;\n // whether a full clear happened before\n private _fullyCleared = false;\n // whether render should do a full clear\n private _needsFullClear = false;\n // hard limit of stored pixels (fallback limit of 10 MB)\n private _pixelLimit: number = 2500000;\n\n private _viewportMetrics: { cols: number, rows: number };\n public onImageAdded: (() => void) | undefined;\n public onImageDeleted: ((storageId: number) => void) | undefined;\n\n constructor(\n private _terminal: ITerminalExt,\n private _renderer: ImageRenderer,\n private _opts: IImageAddonOptions\n ) {\n try {\n this.setLimit(this._opts.storageLimit);\n } catch (e: unknown) {\n if (e instanceof Error) {\n console.error(e.message);\n }\n console.warn(`storageLimit is set to ${this.getLimit()} MB`);\n }\n this._viewportMetrics = {\n cols: this._terminal.cols,\n rows: this._terminal.rows\n };\n }\n\n public dispose(): void {\n this.reset();\n }\n\n public reset(): void {\n for (const spec of this._images.values()) {\n spec.marker?.dispose();\n }\n // NOTE: marker.dispose above already calls ImageBitmap.close\n // therefore we can just wipe the map here\n this._images.clear();\n this._renderer.clearAll();\n }\n\n public getLimit(): number {\n return this._pixelLimit * 4 / 1000000;\n }\n\n public setLimit(value: number): void {\n if (value < 0.5 || value > 1000) {\n throw RangeError('invalid storageLimit, should be at least 0.5 MB and not exceed 1G');\n }\n this._pixelLimit = (value / 4 * 1000000) >>> 0;\n this._evictOldest(0);\n }\n\n public getUsage(): number {\n return this._getStoredPixels() * 4 / 1000000;\n }\n\n private _getStoredPixels(): number {\n let storedPixels = 0;\n for (const spec of this._images.values()) {\n if (spec.orig) {\n storedPixels += spec.orig.width * spec.orig.height;\n if (spec.actual && spec.actual !== spec.orig) {\n storedPixels += spec.actual.width * spec.actual.height;\n }\n }\n }\n return storedPixels;\n }\n\n private _delImg(id: number): void {\n const spec = this._images.get(id);\n if (!spec) return;\n this._images.delete(id);\n // FIXME: really ugly workaround to get bitmaps deallocated :(\n if (window.ImageBitmap && spec.orig instanceof ImageBitmap) {\n spec.orig.close();\n }\n this.onImageDeleted?.(id);\n }\n\n /**\n * Wipe canvas and images on alternate buffer.\n */\n public wipeAlternate(): void {\n // remove all alternate tagged images\n const zero = [];\n for (const [id, spec] of this._images.entries()) {\n if (spec.bufferType === 'alternate') {\n spec.marker?.dispose();\n zero.push(id);\n }\n }\n for (const id of zero) {\n this._delImg(id);\n }\n // mark canvas to be wiped on next render\n this._needsFullClear = true;\n this._fullyCleared = false;\n }\n\n /**\n * Delete an image by its internal storage ID.\n * Used by protocols that support explicit deletion (e.g. Kitty a=d).\n */\n public deleteImage(id: number): void {\n const spec = this._images.get(id);\n if (spec) {\n spec.marker?.dispose();\n this._delImg(id);\n }\n }\n\n /**\n * Method to add an image to the storage.\n * @param img - The image to add (canvas or bitmap).\n * @param opts - Options for addImage:\n * - scrolling: When true, cursor advances with the image.\n * When false, image is placed at ORIGIN and cursor does not move.\n * - layer: Which canvas layer to render on ('top' or 'bottom').\n * - zIndex: Z-index for image layering within the same layer.\n * - cursorPos: 'vt340' for bottom-left, 'iip' for bottom.right.\n * @returns The internal image ID assigned to the stored image.\n */\n public addImage(img: HTMLCanvasElement | ImageBitmap, opts: IAddImageOpts): number {\n // never allow storage to exceed memory limit\n this._evictOldest(img.width * img.height);\n\n // calc rows x cols needed to display the image\n let cellSize = this._renderer.cellSize;\n if (cellSize.width === -1 || cellSize.height === -1) {\n cellSize = CELL_SIZE_DEFAULT;\n }\n const cols = Math.ceil(img.width / cellSize.width);\n const rows = Math.ceil(img.height / cellSize.height);\n\n const imageId = ++this._lastId;\n\n const buffer = this._terminal._core.buffer;\n const termCols = this._terminal.cols;\n const termRows = this._terminal.rows;\n const originX = buffer.x;\n const originY = buffer.y;\n let offset = originX;\n let tileCount = 0;\n\n if (!opts.scrolling) {\n buffer.x = 0;\n buffer.y = 0;\n offset = 0;\n }\n\n this._terminal._core._inputHandler._dirtyRowTracker.markDirty(buffer.y);\n for (let row = 0; row < rows; ++row) {\n const line = buffer.lines.get(buffer.y + buffer.ybase);\n for (let col = 0; col < cols; ++col) {\n if (offset + col >= termCols) break;\n this._writeToCell(line as IBufferLineExt, offset + col, imageId, row * cols + col);\n tileCount++;\n }\n if (opts.scrolling) {\n if (row < rows - 1) this._terminal._core._inputHandler.lineFeed();\n } else {\n if (++buffer.y >= termRows) break;\n }\n buffer.x = offset;\n }\n this._terminal._core._inputHandler._dirtyRowTracker.markDirty(buffer.y);\n\n // cursor positioning modes\n if (opts.scrolling) {\n if (opts.cursorPos === 'iip') {\n buffer.x = Math.min(offset + cols, termCols);\n } else {\n buffer.x = offset;\n }\n } else {\n buffer.x = originX;\n buffer.y = originY;\n }\n\n // deleted images with zero tile count\n const zero = [];\n for (const [id, spec] of this._images.entries()) {\n if (spec.tileCount < 1) {\n spec.marker?.dispose();\n zero.push(id);\n }\n }\n for (const id of zero) {\n this._delImg(id);\n }\n\n // eviction marker:\n // delete the image when the marker gets disposed\n const endMarker = this._terminal.registerMarker(0);\n endMarker?.onDispose(() => {\n const spec = this._images.get(imageId);\n if (spec) {\n this._delImg(imageId);\n }\n });\n\n // since markers do not work on alternate for some reason,\n // we evict images here manually\n if (this._terminal.buffer.active.type === 'alternate') {\n this._evictOnAlternate();\n }\n\n // create storage entry\n const imgSpec: IImageSpec = {\n orig: img,\n origCellSize: cellSize,\n actual: img,\n actualCellSize: { ...cellSize }, // clone needed, since later modified\n marker: endMarker || undefined,\n tileCount,\n bufferType: this._terminal.buffer.active.type,\n layer: opts.layer,\n zIndex: opts.zIndex\n };\n\n // finally add the image\n this._images.set(imageId, imgSpec);\n this.onImageAdded?.();\n return imageId;\n }\n\n\n /**\n * Render method. Collects buffer information and triggers\n * canvas updates.\n */\n // TODO: Should we move this to the ImageRenderer?\n public render(range: { start: number, end: number }): void {\n // Determine which layers have images\n let hasTopImages = false;\n let hasBottomImages = false;\n for (const spec of this._images.values()) {\n if (spec.layer === 'bottom') {\n hasBottomImages = true;\n } else {\n hasTopImages = true;\n }\n if (hasTopImages && hasBottomImages) break;\n }\n\n // Lazily insert layers that are needed\n if (hasTopImages && !this._renderer.hasLayer('top')) {\n this._renderer.insertLayerToDom('top');\n if (!this._renderer.hasLayer('top')) return;\n }\n if (hasBottomImages && !this._renderer.hasLayer('bottom')) {\n this._renderer.insertLayerToDom('bottom');\n }\n\n // rescale if needed\n this._renderer.rescaleCanvas();\n\n // exit early if we dont have any images to test for\n if (!this._images.size) {\n if (!this._fullyCleared) {\n this._renderer.clearAll();\n this._fullyCleared = true;\n this._needsFullClear = false;\n }\n if (this._renderer.hasLayer('top')) {\n this._renderer.removeLayerFromDom('top');\n }\n if (this._renderer.hasLayer('bottom')) {\n this._renderer.removeLayerFromDom('bottom');\n }\n return;\n }\n\n // Remove layers no longer needed\n if (!hasTopImages && this._renderer.hasLayer('top')) {\n this._renderer.clearAll('top');\n this._renderer.removeLayerFromDom('top');\n }\n if (!hasBottomImages && this._renderer.hasLayer('bottom')) {\n this._renderer.clearAll('bottom');\n this._renderer.removeLayerFromDom('bottom');\n }\n\n // buffer switches force a full clear\n if (this._needsFullClear) {\n this._renderer.clearAll();\n this._fullyCleared = true;\n this._needsFullClear = false;\n }\n\n const { start, end } = range;\n const buffer = this._terminal._core.buffer;\n const cols = this._terminal._core.cols;\n\n // clear drawing area\n this._renderer.clearLines(start, end);\n\n // Collect draw calls so we can sort by z-index (lower z drawn first).\n const drawCalls: { imgSpec: IImageSpec, tileId: number, col: number, row: number, count: number }[] = [];\n const placeholderCalls: { col: number, row: number, count: number }[] = [];\n\n // walk all cells in viewport and collect tiles found\n for (let row = start; row <= end; ++row) {\n const line = buffer.lines.get(row + buffer.ydisp) as IBufferLineExt;\n if (!line) return;\n for (let col = 0; col < cols; ++col) {\n if (line.getBg(col) & BgFlags.HAS_EXTENDED) {\n let e: IExtendedAttrsImage = line._extendedAttrs[col] ?? EMPTY_ATTRS;\n const imageId = e.imageId;\n if (imageId === undefined || imageId === -1) {\n continue;\n }\n const imgSpec = this._images.get(imageId);\n if (e.tileId !== -1) {\n const startTile = e.tileId;\n const startCol = col;\n let count = 1;\n /**\n * merge tiles to the right into a single draw call, if:\n * - not at end of line\n * - cell has same image id\n * - cell has consecutive tile id\n */\n while (\n ++col < cols\n && (line.getBg(col) & BgFlags.HAS_EXTENDED)\n && (e = line._extendedAttrs[col] ?? EMPTY_ATTRS)\n && (e.imageId === imageId)\n && (e.tileId === startTile + count)\n ) {\n count++;\n }\n col--;\n if (imgSpec) {\n if (imgSpec.actual) {\n drawCalls.push({ imgSpec, tileId: startTile, col: startCol, row, count });\n }\n } else if (this._opts.showPlaceholder) {\n placeholderCalls.push({ col: startCol, row, count });\n }\n this._fullyCleared = false;\n }\n }\n }\n }\n\n // Sort by z-index so lower z draws first (higher z renders on top)\n drawCalls.sort((a, b) => a.imgSpec.zIndex - b.imgSpec.zIndex);\n\n // Draw placeholders first (lowest priority)\n for (const call of placeholderCalls) {\n this._renderer.drawPlaceholder(call.col, call.row, call.count);\n }\n\n // Draw images in z-index order\n for (const call of drawCalls) {\n this._renderer.draw(call.imgSpec, call.tileId, call.col, call.row, call.count);\n }\n }\n\n public viewportResize(metrics: { cols: number, rows: number }): void {\n // exit early if we have nothing in storage\n if (!this._images.size) {\n this._viewportMetrics = metrics;\n return;\n }\n\n // handle only viewport width enlargements, exit all other cases\n // TODO: needs patch for tile counter\n if (this._viewportMetrics.cols >= metrics.cols) {\n this._viewportMetrics = metrics;\n return;\n }\n\n // walk scrollbuffer at old col width to find all possible expansion matches\n const buffer = this._terminal._core.buffer;\n const rows = buffer.lines.length;\n const oldCol = this._viewportMetrics.cols - 1;\n for (let row = 0; row < rows; ++row) {\n const line = buffer.lines.get(row) as IBufferLineExt;\n if (line.getBg(oldCol) & BgFlags.HAS_EXTENDED) {\n const e: IExtendedAttrsImage = line._extendedAttrs[oldCol] ?? EMPTY_ATTRS;\n const imageId = e.imageId;\n if (imageId === undefined || imageId === -1) {\n continue;\n }\n const imgSpec = this._images.get(imageId);\n if (!imgSpec) {\n continue;\n }\n // found an image tile at oldCol, check if it qualifies for right exapansion\n const tilesPerRow = Math.ceil((imgSpec.actual?.width || 0) / imgSpec.actualCellSize.width);\n if ((e.tileId % tilesPerRow) + 1 >= tilesPerRow) {\n continue;\n }\n // expand only if right side is empty (nothing got wrapped from below)\n let hasData = false;\n for (let rightCol = oldCol + 1; rightCol > metrics.cols; ++rightCol) {\n if (line._data[rightCol * Cell.SIZE + Cell.CONTENT] & Content.HAS_CONTENT_MASK) {\n hasData = true;\n break;\n }\n }\n if (hasData) {\n continue;\n }\n // do right expansion on terminal buffer\n const end = Math.min(metrics.cols, tilesPerRow - (e.tileId % tilesPerRow) + oldCol);\n let lastTile = e.tileId;\n for (let expandCol = oldCol + 1; expandCol < end; ++expandCol) {\n this._writeToCell(line as IBufferLineExt, expandCol, imageId, ++lastTile);\n imgSpec.tileCount++;\n }\n }\n }\n // store new viewport metrics\n this._viewportMetrics = metrics;\n }\n\n /**\n * Retrieve original canvas at buffer position.\n */\n public getImageAtBufferCell(x: number, y: number): HTMLCanvasElement | undefined {\n const buffer = this._terminal._core.buffer;\n const line = buffer.lines.get(y) as IBufferLineExt;\n if (line && line.getBg(x) & BgFlags.HAS_EXTENDED) {\n const e: IExtendedAttrsImage = line._extendedAttrs[x] ?? EMPTY_ATTRS;\n if (e.imageId && e.imageId !== -1) {\n const orig = this._images.get(e.imageId)?.orig;\n if (window.ImageBitmap && orig instanceof ImageBitmap) {\n const canvas = ImageRenderer.createCanvas(window.document, orig.width, orig.height);\n canvas.getContext('2d')?.drawImage(orig, 0, 0, orig.width, orig.height);\n return canvas;\n }\n return orig as HTMLCanvasElement;\n }\n }\n }\n\n /**\n * Extract active single tile at buffer position.\n */\n public extractTileAtBufferCell(x: number, y: number): HTMLCanvasElement | undefined {\n const buffer = this._terminal._core.buffer;\n const line = buffer.lines.get(y) as IBufferLineExt;\n if (line && line.getBg(x) & BgFlags.HAS_EXTENDED) {\n const e: IExtendedAttrsImage = line._extendedAttrs[x] ?? EMPTY_ATTRS;\n if (e.imageId && e.imageId !== -1 && e.tileId !== -1) {\n const spec = this._images.get(e.imageId);\n if (spec) {\n return this._renderer.extractTile(spec, e.tileId);\n }\n }\n }\n }\n\n // TODO: Do we need some blob offloading tricks here to avoid early eviction?\n // also see https://stackoverflow.com/questions/28307789/is-there-any-limitation-on-javascript-max-blob-size\n private _evictOldest(room: number): number {\n const used = this._getStoredPixels();\n let current = used;\n while (this._pixelLimit < current + room && this._images.size) {\n const spec = this._images.get(++this._lowestId);\n if (spec && spec.orig) {\n current -= spec.orig.width * spec.orig.height;\n if (spec.actual && spec.orig !== spec.actual) {\n current -= spec.actual.width * spec.actual.height;\n }\n spec.marker?.dispose();\n this._delImg(this._lowestId);\n }\n }\n return used - current;\n }\n\n private _writeToCell(line: IBufferLineExt, x: number, imageId: number, tileId: number): void {\n if (line._data[x * Cell.SIZE + Cell.BG] & BgFlags.HAS_EXTENDED) {\n const old = line._extendedAttrs[x];\n if (old) {\n if (old.imageId !== undefined) {\n // found an old ExtendedAttrsImage, since we know that\n // they are always isolated instances (single cell usage),\n // we can re-use it and just update their id entries\n const oldSpec = this._images.get(old.imageId);\n if (oldSpec) {\n // early eviction for in-viewport overwrites\n oldSpec.tileCount--;\n }\n old.imageId = imageId;\n old.tileId = tileId;\n return;\n }\n // found a plain ExtendedAttrs instance, clone it to new entry\n line._extendedAttrs[x] = new ExtendedAttrsImage(old.ext, old.urlId, imageId, tileId);\n return;\n }\n }\n // fall-through: always create new ExtendedAttrsImage entry\n line._data[x * Cell.SIZE + Cell.BG] |= BgFlags.HAS_EXTENDED;\n line._extendedAttrs[x] = new ExtendedAttrsImage(0, 0, imageId, tileId);\n }\n\n private _evictOnAlternate(): void {\n // nullify tile count of all images on alternate buffer\n for (const spec of this._images.values()) {\n if (spec.bufferType === 'alternate') {\n spec.tileCount = 0;\n }\n }\n // re-count tiles on whole buffer\n const buffer = this._terminal._core.buffer;\n for (let y = 0; y < this._terminal.rows; ++y) {\n const line = buffer.lines.get(y) as IBufferLineExt;\n if (!line) {\n continue;\n }\n for (let x = 0; x < this._terminal.cols; ++x) {\n if (line._data[x * Cell.SIZE + Cell.BG] & BgFlags.HAS_EXTENDED) {\n const imgId = line._extendedAttrs[x]?.imageId;\n if (imgId) {\n const spec = this._images.get(imgId);\n if (spec) {\n spec.tileCount++;\n }\n }\n }\n }\n }\n // deleted images with zero tile count\n const zero = [];\n for (const [id, spec] of this._images.entries()) {\n if (spec.bufferType === 'alternate' && !spec.tileCount) {\n spec.marker?.dispose();\n zero.push(id);\n }\n }\n for (const id of zero) {\n this._delImg(id);\n }\n }\n}\n", "/**\n * Copyright (c) 2023 The xterm.js authors. All rights reserved.\n * @license MIT\n */\nimport { IImageAddonOptions, IOscHandler, IResetHandler, ITerminalExt } from './Types';\nimport { ImageRenderer } from './ImageRenderer';\nimport { IIPImageStorage } from './IIPImageStorage';\nimport { CELL_SIZE_DEFAULT } from './ImageStorage';\nimport Base64Decoder from 'xterm-wasm-parts/lib/base64/Base64Decoder.wasm';\nimport QoiDecoder from 'xterm-wasm-parts/lib/qoi/QoiDecoder.wasm';\nimport { HeaderParser, IHeaderFields, HeaderState, SequenceType } from './IIPHeaderParser';\nimport { imageType, UNSUPPORTED_TYPE } from './IIPMetrics';\n\n// Local const enum mirror - esbuild can't inline const enums from external packages\nconst enum DecoderConst {\n // Limit held memory in base64 decoder (encoded bytes).\n KEEP_DATA = 4194304,\n // Initial buffer allocation for the decoder.\n INITIAL_DATA = 1048576,\n // Local mirror of const enum (esbuild can't inline const enums from external packages)\n OK = 0\n}\n\n// default IIP header values\nconst DEFAULT_HEADER: IHeaderFields = {\n type: SequenceType.INVALID,\n name: 'Unnamed file',\n size: 0,\n width: 'auto',\n height: 'auto',\n preserveAspectRatio: 1,\n inline: 0\n};\n\n\nexport class IIPHandler implements IOscHandler, IResetHandler {\n private _aborted = false;\n private _hp = new HeaderParser();\n private _header: IHeaderFields = DEFAULT_HEADER;\n private _dec: Base64Decoder;\n private _qoiDec: QoiDecoder;\n private _isMultipart = false;\n private _abortMulti = false;\n\n constructor(\n private readonly _opts: IImageAddonOptions,\n private readonly _renderer: ImageRenderer,\n private readonly _storage: IIPImageStorage,\n private readonly _coreTerminal: ITerminalExt\n ) {\n const maxEncodedBytes = Math.ceil(this._opts.iipSizeLimit * 4 / 3);\n const initialBytes = Math.min(DecoderConst.INITIAL_DATA, maxEncodedBytes);\n this._dec = new Base64Decoder(DecoderConst.KEEP_DATA, maxEncodedBytes, initialBytes);\n this._qoiDec = new QoiDecoder(DecoderConst.KEEP_DATA);\n }\n\n public reset(): void {\n this._hp.reset();\n this._dec.release();\n this._qoiDec.release();\n }\n\n public start(): void {\n this._aborted = false;\n this._hp.reset();\n }\n\n public put(data: Uint32Array, start: number, end: number): void {\n if (this._aborted) return;\n\n if (this._hp.state === HeaderState.END) {\n if ((this._dec.put(data.subarray(start, end)) as number) !== DecoderConst.OK) {\n this._dec.release();\n this._aborted = true;\n }\n } else {\n const dataPos = this._hp.parse(data, start, end);\n if (dataPos === -1) {\n this._aborted = true;\n return;\n }\n if (dataPos > 0) {\n const seqType = this._hp.fields.type;\n if (seqType === SequenceType.FILE) {\n if (this._isMultipart) {\n this._isMultipart = false;\n this._abortMulti = false;\n this._dec.release();\n }\n this._header = Object.assign({}, DEFAULT_HEADER, this._hp.fields);\n if (!this._header.inline) {\n this._aborted = true;\n return;\n }\n this._dec.init();\n } else if (this._abortMulti) {\n this._aborted = true;\n return;\n }\n if ((this._dec.put(data.subarray(dataPos, end)) as number) !== DecoderConst.OK) {\n this._dec.release();\n this._aborted = true;\n if (this._isMultipart) this._abortMulti = true;\n }\n }\n }\n }\n\n public end(success: boolean): boolean | Promise<boolean> {\n if (this._aborted) return true;\n\n if (this._hp.state !== HeaderState.END) {\n if (this._hp.end()) return true;\n }\n const seqType = this._hp.fields.type;\n\n if (seqType === SequenceType.FILEPART) return true;\n\n if (seqType === SequenceType.REPORTCELLSIZE) {\n // OSC 1337 ; ReportCellSize=[height];[width];[scale] ST\n let w = CELL_SIZE_DEFAULT.width;\n let h = CELL_SIZE_DEFAULT.height;\n if (this._renderer.dimensions) {\n w = this._renderer.dimensions.css.canvas.width / this._coreTerminal.cols;\n h = this._renderer.dimensions.css.canvas.height / this._coreTerminal.rows;\n }\n const scale = this._coreTerminal._core._coreBrowserService?.dpr ?? 1;\n const report = `\\x1b]1337;ReportCellSize=${h.toFixed(3)};${w.toFixed(3)};${scale.toFixed(3)}\\x1b\\\\`;\n this._coreTerminal.input(report, false);\n return true;\n }\n\n if (seqType === SequenceType.MULTIPARTFILE) {\n this._header = Object.assign({}, DEFAULT_HEADER, this._hp.fields);\n this._isMultipart = true;\n this._abortMulti = false;\n this._dec.release();\n this._dec.init();\n return true;\n }\n\n if (seqType === SequenceType.FILEEND) {\n if (!this._isMultipart) return true;\n this._isMultipart = false;\n if (this._abortMulti || this._header.type !== SequenceType.MULTIPARTFILE) return true;\n }\n\n // fallthrough for SequenceType.FILE & SequenceType.FILEEND\n\n let w = 0;\n let h = 0;\n\n // early exit condition chain\n let cond: number | boolean;\n let metrics = UNSUPPORTED_TYPE;\n if (cond = success) {\n if (cond = !this._dec.end()) {\n metrics = imageType(this._dec.data8);\n if (cond = metrics.mime !== 'unsupported') {\n w = metrics.width;\n h = metrics.height;\n if (cond = w && h && w * h < this._opts.pixelLimit) {\n [w, h] = this._resize(w, h).map(Math.floor);\n cond = w && h && w * h < this._opts.pixelLimit;\n } else {\n console.warn(`IIP: image dimension issue ${metrics.width}x${metrics.height}`);\n }\n } else {\n console.warn('IIP: unsupported image type');\n }\n } else {\n console.warn('IIP: error during BASE64 decoding');\n }\n }\n if (!cond) {\n this._dec.release();\n return true;\n }\n\n let blob: Blob | ImageData;\n if (metrics.mime === 'image/qoi') {\n const data = this._qoiDec.decode(this._dec.data8);\n blob = new ImageData(\n new Uint8ClampedArray(data.buffer, data.byteOffset, data.byteLength),\n this._qoiDec.width,\n this._qoiDec.height\n );\n this._qoiDec.release();\n if (w === this._qoiDec.width && h === this._qoiDec.height) {\n // use fast-path if we don't need to rescale\n this._dec.release();\n const canvas = ImageRenderer.createCanvas(undefined, this._qoiDec.width, this._qoiDec.height);\n canvas.getContext('2d')?.putImageData(blob, 0, 0);\n this._storage.addImage(canvas);\n return true;\n }\n } else {\n blob = new Blob([this._dec.data8], { type: metrics.mime });\n }\n this._dec.release();\n return createImageBitmap(blob, { resizeWidth: w, resizeHeight: h })\n .then(bm => {\n this._storage.addImage(bm);\n return true;\n })\n .catch(e => {\n console.warn(`IIP: decoding error ${metrics.mime} ${metrics.width}x${metrics.height}`, e);\n return true;\n });\n }\n\n private _resize(w: number, h: number): [number, number] {\n const cw = this._renderer.dimensions?.css.cell.width || CELL_SIZE_DEFAULT.width;\n const ch = this._renderer.dimensions?.css.cell.height || CELL_SIZE_DEFAULT.height;\n const width = this._renderer.dimensions?.css.canvas.width || cw * this._coreTerminal.cols;\n const height = this._renderer.dimensions?.css.canvas.height || ch * this._coreTerminal.rows;\n\n const rw = this._dim(this._header.width!, width, cw);\n const rh = this._dim(this._header.height!, height, ch);\n if (!rw && !rh) {\n const wf = width / w; // TODO: should this respect initial cursor offset?\n const hf = (height - ch) / h; // TODO: fix offset issues from float cell height\n const f = Math.min(wf, hf);\n return f < 1 ? [w * f, h * f] : [w, h];\n }\n return !rw\n ? [w * rh / h, rh]\n : this._header.preserveAspectRatio || !rw || !rh\n ? [rw, h * rw / w] : [rw, rh];\n }\n\n private _dim(s: string, total: number, cdim: number): number {\n if (s === 'auto') return 0;\n if (s.endsWith('%')) return parseInt(s.slice(0, -1), 10) * total / 100;\n if (s.endsWith('px')) return parseInt(s.slice(0, -2), 10);\n return parseInt(s, 10) * cdim;\n }\n}\n", "/**\n * Copyright (c) 2023 The xterm.js authors. All rights reserved.\n * @license MIT\n */\n\n// eslint-disable-next-line\ndeclare const Buffer: any;\n\nexport const enum HeaderState {\n START = 0,\n ABORT = 1,\n KEY = 2,\n VALUE = 3,\n END = 4\n}\n\nexport const enum SequenceType {\n INVALID = 0,\n FILE = 1,\n MULTIPARTFILE = 2,\n FILEPART = 3,\n FILEEND = 4,\n REPORTCELLSIZE = 5\n}\n\nexport interface IHeaderFields {\n [key: string]: number | string | Uint32Array | null | undefined;\n // sequence type\n type: SequenceType;\n // base-64 encoded filename. Defaults to \"Unnamed file\".\n name: string;\n // File size in bytes. The file transfer will be canceled if this size is exceeded.\n size: number;\n /**\n * Optional width and height to render:\n * - N: N character cells.\n * - Npx: N pixels.\n * - N%: N percent of the session's width or height.\n * - auto: The image's inherent size will be used to determine an appropriate dimension.\n */\n width?: string;\n height?: string;\n // Optional, defaults to 1 respecting aspect ratio (width takes precedence).\n preserveAspectRatio?: number;\n // Optional, defaults to 0. If set to 1, the file will be displayed inline, else downloaded\n // (download not supported).\n inline?: number;\n}\n\n// field value decoders\n\n// ASCII bytes to string\nfunction toStr(data: Uint32Array): string {\n let s = '';\n for (let i = 0; i < data.length; ++i) {\n s += String.fromCharCode(data[i]);\n }\n return s;\n}\n\n// digits to integer\nfunction toInt(data: Uint32Array): number {\n let v = 0;\n for (let i = 0; i < data.length; ++i) {\n if (data[i] < 48 || data[i] > 57) {\n throw new Error('illegal char');\n }\n v = v * 10 + data[i] - 48;\n }\n return v;\n}\n\n// check for correct size entry\nfunction toSize(data: Uint32Array): string {\n const v = toStr(data);\n if (!v.match(/^((auto)|(\\d+?((px)|(%)){0,1}))$/)) {\n throw new Error('illegal size');\n }\n return v;\n}\n\n// name is base64 encoded utf-8\nfunction toName(data: Uint32Array): string {\n if (typeof Buffer !== 'undefined') {\n return Buffer.from(toStr(data), 'base64').toString();\n }\n const bs = atob(toStr(data));\n const b = new Uint8Array(bs.length);\n for (let i = 0; i < b.length; ++i) {\n b[i] = bs.charCodeAt(i);\n }\n return new TextDecoder().decode(b);\n}\n\nconst DECODERS: {[key: string]: (v: Uint32Array) => number | string} = {\n inline: toInt,\n size: toInt,\n name: toName,\n width: toSize,\n height: toSize,\n preserveAspectRatio: toInt\n};\n\n\n// sequence type markers\n// File\nconst FILE_MARKER = [70, 105, 108, 101];\n// MultipartFile\nconst MULTIPARTFILE_MARKER = [77, 117, 108, 116, 105, 112, 97, 114, 116, 70, 105, 108, 101];\n// FilePart\nconst FILEPART_MARKER = [70, 105, 108, 101, 80, 97, 114, 116];\n// FileEnd\nconst FILEEND_MARKER = [70, 105, 108, 101, 69, 110, 100];\n// ReportCellSize\nconst REPORTCELLSIZE_MARKER = [82, 101, 112, 111, 114, 116, 67, 101, 108, 108, 83, 105, 122, 101];\n\n// max allowed chars for sequence header\nconst MAX_FIELDCHARS = 1024;\n\n\nexport class HeaderParser {\n public state: HeaderState = HeaderState.START;\n private _buffer = new Uint32Array(MAX_FIELDCHARS);\n private _position = 0;\n private _key = '';\n public fields: {[key: string]: number | string | Uint32Array | null | undefined} = {};\n\n public reset(): void {\n this._buffer.fill(0);\n this.state = HeaderState.START;\n this._position = 0;\n this.fields = {};\n this._key = '';\n }\n\n public end(): number {\n if (this.state === HeaderState.START) {\n if (this._position === FILEEND_MARKER.length) {\n for (let k = 0; k < FILEEND_MARKER.length; ++k) {\n if (this._buffer[k] !== FILEEND_MARKER[k]) return this._a();\n }\n this.fields['type'] = SequenceType.FILEEND;\n this.state = HeaderState.END;\n return 0;\n }\n if (this._position === REPORTCELLSIZE_MARKER.length) {\n for (let k = 0; k < REPORTCELLSIZE_MARKER.length; ++k) {\n if (this._buffer[k] !== REPORTCELLSIZE_MARKER[k]) return this._a();\n }\n this.fields['type'] = SequenceType.REPORTCELLSIZE;\n this.state = HeaderState.END;\n return 0;\n }\n return this._a();\n }\n if (this.state === HeaderState.END) return 0;\n if (this.state === HeaderState.VALUE\n && this.fields.type === SequenceType.MULTIPARTFILE\n ) {\n if (!this._storeValue(this._position)) return this._a();\n this.state = HeaderState.END;\n return 0;\n }\n return this._a();\n }\n\n public parse(data: Uint32Array, start: number, end: number): number {\n let state = this.state;\n let pos = this._position;\n const buffer = this._buffer;\n if (state === HeaderState.ABORT || state === HeaderState.END) return -1;\n if (state === HeaderState.START && pos > 14) return -1;\n for (let i = start; i < end; ++i) {\n const c = data[i];\n switch (c) {\n case 59: // ;\n if (!this._storeValue(pos)) return this._a();\n state = HeaderState.KEY;\n pos = 0;\n break;\n case 61: // =\n if (state === HeaderState.START) {\n if (buffer[0] === 70) {\n // 'File' or 'FilePart'\n let k = 0;\n for (; k < FILE_MARKER.length; ++k) {\n if (buffer[k] !== FILE_MARKER[k]) return this._a();\n }\n this.fields['type'] = SequenceType.FILE;\n if (pos === FILEPART_MARKER.length) {\n for (; k < FILEPART_MARKER.length; ++k) {\n if (buffer[k] !== FILEPART_MARKER[k]) return this._a();\n }\n this.fields['type'] = SequenceType.FILEPART;\n this.state = HeaderState.END;\n return i + 1;\n }\n } else if (buffer[0] === 77) {\n // 'MultipartFile'\n for (let k = 0; k < MULTIPARTFILE_MARKER.length; ++k) {\n if (buffer[k] !== MULTIPARTFILE_MARKER[k]) return this._a();\n }\n this.fields['type'] = SequenceType.MULTIPARTFILE;\n } else {\n return this._a();\n }\n state = HeaderState.KEY;\n pos = 0;\n } else if (state === HeaderState.KEY) {\n if (!this._storeKey(pos)) return this._a();\n state = HeaderState.VALUE;\n pos = 0;\n } else if (state === HeaderState.VALUE) {\n if (pos >= MAX_FIELDCHARS) return this._a();\n buffer[pos++] = c;\n }\n break;\n case 58: // :\n if (state === HeaderState.VALUE) {\n if (!this._storeValue(pos)) return this._a();\n }\n this.state = HeaderState.END;\n return i + 1;\n default:\n if (pos >= MAX_FIELDCHARS) return this._a();\n buffer[pos++] = c;\n }\n }\n this.state = state;\n this._position = pos;\n return -2;\n }\n\n private _a(): number {\n this.fields.type = SequenceType.INVALID;\n this.state = HeaderState.ABORT;\n return -1;\n }\n\n private _storeKey(pos: number): boolean {\n const k = toStr(this._buffer.subarray(0, pos));\n if (k) {\n this._key = k;\n this.fields[k] = null;\n return true;\n }\n return false;\n }\n\n private _storeValue(pos: number): boolean {\n if (this._key) {\n try {\n const v = this._buffer.slice(0, pos);\n this.fields[this._key] = DECODERS[this._key] ? DECODERS[this._key](v) : v;\n } catch {\n return false;\n }\n return true;\n }\n return false;\n }\n}\n", "/**\n * Copyright (c) 2023 The xterm.js authors. All rights reserved.\n * @license MIT\n */\n\n\nexport type ImageType = 'image/png' | 'image/jpeg' | 'image/gif' | 'image/qoi' | 'image/webp' | 'image/avif' | 'unsupported' | '';\n\nexport interface IMetrics {\n mime: ImageType;\n width: number;\n height: number;\n}\n\nexport const UNSUPPORTED_TYPE: IMetrics = {\n mime: 'unsupported',\n width: 0,\n height: 0\n};\n\nexport function imageType(d: Uint8Array): IMetrics {\n if (d.length < 32) {\n return UNSUPPORTED_TYPE;\n }\n const d32 = new Uint32Array(d.buffer, d.byteOffset, 8);\n // PNG: 89 50 4E 47 0D 0A 1A 0A (8 first bytes == magic number for PNG)\n // + first chunk must be IHDR\n if (d32[0] === 0x474E5089 && d32[1] === 0x0A1A0A0D && d32[3] === 0x52444849) {\n return {\n mime: 'image/png',\n width: d[16] << 24 | d[17] << 16 | d[18] << 8 | d[19],\n height: d[20] << 24 | d[21] << 16 | d[22] << 8 | d[23]\n };\n }\n // JPEG: FF D8 FF\n if (d[0] === 0xFF && d[1] === 0xD8 && d[2] === 0xFF) {\n const [width, height] = jpgSize(d);\n return { mime: 'image/jpeg', width, height };\n }\n // GIF: GIF87a or GIF89a\n if (d32[0] === 0x38464947 && (d[4] === 0x37 || d[4] === 0x39) && d[5] === 0x61) {\n return {\n mime: 'image/gif',\n width: d[7] << 8 | d[6],\n height: d[9] << 8 | d[8]\n };\n }\n // QOI: qoif\n if (d32[0] === 0x66696F71) {\n return {\n mime: 'image/qoi',\n width: d[4] << 24 | d[5] << 16 | d[6] << 8 | d[7],\n height: d[8] << 24 | d[9] << 16 | d[10] << 8 | d[11]\n };\n }\n // WEBP: RIFF | xxxx | WEBP | VP8x\n if (d32[0] === 0x46464952 && d32[2] === 0x50424557 && (d32[3] & 0xFFFFFF) === 0x385056) {\n switch (d[15]) {\n case 0x58: // Extended WebP VP8X --> \"X\"\n return {\n mime: 'image/webp',\n width: (d[24] | d[25] << 8 | d[26] << 16) + 1,\n height: (d[27] | d[28] << 8 | d[29] << 16) + 1\n };\n case 0x4C: // Lossless WebP VP8L --> \"L\"\n if (d[20] !== 0x2f) return UNSUPPORTED_TYPE;\n const dim = d[21] | d[22] << 8 | d[23] << 16 | d[24] << 24;\n return {\n mime: 'image/webp',\n width: (dim & 0x3FFF) + 1,\n height: (dim >>> 14 & 0x3FFF) + 1\n };\n case 0x20: // Lossy WebP VP8 --> \" \"\n if (d[23] !== 0x9d || d[24] !== 0x01 || d[25] !== 0x2a) return UNSUPPORTED_TYPE;\n return {\n mime: 'image/webp',\n width: (d[26] | d[27] << 8) & 0x3FFF,\n height: (d[28] | d[29] << 8) & 0x3FFF\n };\n }\n return UNSUPPORTED_TYPE;\n }\n // AVIF: Box size | ftyp | avif/avis\n if (d32[1] === 0x70797466 && (d32[2] === 0x66697661 || d32[2] === 0x73697661)) {\n let pos = -1;\n // search for ispe box within first 1024 bytes\n const limit = Math.min(d.length - 16, 1024);\n for (let i = 8; i < limit; i++) {\n // scan for ispe\n if (d[i] === 0x69 && d[i + 1] === 0x73 && d[i + 2] === 0x70 && d[i + 3] === 0x65) {\n pos = i;\n break;\n }\n }\n if (pos !== -1) {\n // dimensions are in BE at +8 (width) at +12 (height)\n const width =\n d[pos + 8] << 24 |\n d[pos + 9] << 16 |\n d[pos + 10] << 8 |\n d[pos + 11];\n const height =\n d[pos + 12] << 24 |\n d[pos + 13] << 16 |\n d[pos + 14] << 8 |\n d[pos + 15];\n if (width > 0 && height > 0) {\n return { mime: 'image/avif', width, height };\n }\n }\n return UNSUPPORTED_TYPE;\n }\n return UNSUPPORTED_TYPE;\n}\n\n\nfunction jpgSize(d: Uint8Array): [number, number] {\n const len = d.length;\n let i = 4;\n let blockLength = d[i] << 8 | d[i + 1];\n while (true) {\n i += blockLength;\n if (i >= len) {\n // exhausted without size info\n return [0, 0];\n }\n if (d[i] !== 0xFF) {\n return [0, 0];\n }\n if (d[i + 1] === 0xC0 || d[i + 1] === 0xC2) {\n if (i + 8 < len) {\n return [\n d[i + 7] << 8 | d[i + 8],\n d[i + 5] << 8 | d[i + 6]\n ];\n }\n return [0, 0];\n }\n i += 2;\n blockLength = d[i] << 8 | d[i + 1];\n }\n}\n", "/**\n * Copyright (c) 2026 The xterm.js authors. All rights reserved.\n * @license MIT\n */\n\nimport { IDisposable } from '@xterm/xterm';\nimport { IApcHandler, IImageAddonOptions, IResetHandler, ITerminalExt, ImageLayer } from '../Types';\nimport { ImageRenderer } from '../ImageRenderer';\nimport { CELL_SIZE_DEFAULT } from '../ImageStorage';\nimport { KittyImageStorage } from './KittyImageStorage';\nimport Base64Decoder, { type DecodeStatus } from 'xterm-wasm-parts/lib/base64/Base64Decoder.wasm';\nimport {\n KittyAction,\n KittyFormat,\n KittyCompression,\n IKittyCommand,\n IPendingTransmission,\n IKittyImageData,\n KittyPixelConstants,\n parseKittyCommand\n} from './KittyGraphicsTypes';\n\nconst enum Constants {\n // Memory limit for base64 decoder (4MB, same as IIPHandler)\n DECODER_KEEP_DATA = 4194304,\n DECODER_INITIAL_DATA = 4194304, // 4MB\n // Local mirror of const enum (esbuild can't inline const enums from external packages)\n DECODER_OK = 0,\n // Maximum control data size\n MAX_CONTROL_DATA_SIZE = 512,\n // Semicolon codepoint\n SEMICOLON = 0x3B\n}\n\nconst DECODER_OK = Constants.DECODER_OK as unknown as DecodeStatus.OK;\n\n// Kitty graphics protocol handler with streaming base64 decoding.\nexport class KittyGraphicsHandler implements IApcHandler, IResetHandler, IDisposable {\n private _aborted = false;\n private _decodeError = false;\n\n private _activeDecoder: Base64Decoder | null = null;\n private readonly _maxEncodedBytes: number;\n private readonly _initialEncodedBytes: number;\n\n // Streaming related states\n\n // True while receiving control data (before semicolon).\n private _inControlData = true;\n\n // Buffer for control data.\n private _controlData = new Uint32Array(Constants.MAX_CONTROL_DATA_SIZE);\n private _controlLength = 0;\n\n // Pre-calculated encoded size limit\n private _encodedSizeLimit = 0;\n private _totalEncodedSize = 0;\n\n // Parsed command. These are the control data before semicolon.\n private _parsedCommand: IKittyCommand | null = null;\n\n // Storage related states\n\n private _pendingTransmissions: Map<number, IPendingTransmission> = new Map();\n // Tracks the pending key of the most recently started chunked upload.\n // Per spec, subsequent chunks only need m= (and optionally q=), without i=.\n // When a chunk arrives with no i=, this key is used to find the pending upload.\n private _lastPendingKey: number | undefined;\n\n constructor(\n private readonly _opts: IImageAddonOptions,\n private readonly _renderer: ImageRenderer,\n private readonly _kittyStorage: KittyImageStorage,\n private readonly _coreTerminal: ITerminalExt\n ) {\n // Convert decoded size limit -> max encoded bytes.\n this._maxEncodedBytes = Math.ceil(this._opts.kittySizeLimit * 4 / 3);\n // ensure we preallocate more than configured limit while using 4mb initial size.\n this._initialEncodedBytes = Math.min(Constants.DECODER_INITIAL_DATA, this._maxEncodedBytes);\n }\n\n public reset(): void {\n this._cleanupAllPending();\n if (this._activeDecoder) {\n this._activeDecoder.release();\n this._activeDecoder = null;\n }\n this._kittyStorage.reset();\n }\n\n public dispose(): void {\n this.reset();\n }\n\n private _removePendingEntry(key: number): void {\n this._pendingTransmissions.delete(key);\n if (this._lastPendingKey === key) {\n this._lastPendingKey = undefined;\n }\n }\n\n private _cleanupAllPending(): void {\n for (const pending of this._pendingTransmissions.values()) {\n pending.decoder.release();\n }\n this._pendingTransmissions.clear();\n this._lastPendingKey = undefined;\n }\n\n public start(): void {\n this._aborted = false;\n this._decodeError = false;\n this._inControlData = true;\n this._controlLength = 0;\n this._parsedCommand = null;\n // Pre-calculate encoded limit once: base64 is 4 bytes encoded \u2192 3 bytes decoded\n this._encodedSizeLimit = this._maxEncodedBytes;\n this._totalEncodedSize = 0;\n this._activeDecoder = null;\n }\n\n public put(data: Uint32Array, start: number, end: number): void {\n if (this._aborted) return;\n\n if (!this._inControlData) {\n this._streamPayload(data, start, end);\n } else {\n // Scan for semicolon\n let controlEnd = end;\n for (let i = start; i < end; i++) {\n if (data[i] === Constants.SEMICOLON) {\n this._inControlData = false;\n controlEnd = i;\n break;\n }\n }\n\n // Copy control data\n const copyLength = controlEnd - start;\n if (this._controlLength + copyLength > Constants.MAX_CONTROL_DATA_SIZE) {\n this._aborted = true;\n return;\n }\n this._controlData.set(data.subarray(start, controlEnd), this._controlLength);\n this._controlLength += copyLength;\n\n if (!this._inControlData) {\n // Found semicolon - parse control data early for validation\n this._parsedCommand = parseKittyCommand(this._parseControlDataString());\n\n // Early validation: i+I conflict\n if (this._parsedCommand.id !== undefined && this._parsedCommand.imageNumber !== undefined) {\n this._sendResponse(this._parsedCommand.id, 'EINVAL:cannot specify both i and I keys', this._parsedCommand.quiet ?? 0);\n this._aborted = true;\n return;\n }\n\n // Delete action doesn't need payload - skip streaming\n if (this._parsedCommand.action === KittyAction.DELETE) {\n return;\n }\n\n // Stream remaining as payload\n const payloadStart = controlEnd + 1;\n if (payloadStart < end) {\n this._streamPayload(data, payloadStart, end);\n }\n }\n }\n }\n\n // Stream payload bytes into the base64 decoder.\n private _streamPayload(data: Uint32Array, start: number, end: number): void {\n if (this._aborted) return;\n\n // Check size limit (compare encoded bytes against pre-calculated limit)\n // Include cumulative size from pending transmission for multi-chunk images.\n // Per spec, subsequent chunks may omit i=, so fall back to _lastPendingKey.\n const pendingKey = this._parsedCommand?.id ?? this._lastPendingKey ?? 0;\n const pending = this._pendingTransmissions.get(pendingKey);\n const previousEncodedSize = pending?.totalEncodedSize ?? 0;\n this._totalEncodedSize += end - start;\n const cumulativeEncodedSize = previousEncodedSize + this._totalEncodedSize;\n if (cumulativeEncodedSize > this._encodedSizeLimit) {\n const decoderToRelease = this._activeDecoder ?? pending?.decoder;\n if (decoderToRelease) {\n decoderToRelease.release();\n }\n this._activeDecoder = null;\n if (pending) {\n this._removePendingEntry(pendingKey);\n }\n this._aborted = true;\n return;\n }\n\n if (this._decodeError) return;\n\n if (pending?.decoder && !this._activeDecoder) {\n this._activeDecoder = pending.decoder;\n }\n if (!this._activeDecoder) {\n this._activeDecoder = new Base64Decoder(Constants.DECODER_KEEP_DATA, this._maxEncodedBytes, this._initialEncodedBytes);\n this._activeDecoder.init();\n }\n\n if (this._activeDecoder.put(data.subarray(start, end)) !== DECODER_OK) {\n this._activeDecoder.release();\n this._activeDecoder = null;\n this._decodeError = true;\n if (pending) {\n this._removePendingEntry(pendingKey);\n }\n }\n }\n\n public end(success: boolean): boolean | Promise<boolean> {\n if (this._aborted || !success) {\n if (this._activeDecoder) {\n this._activeDecoder.release();\n this._activeDecoder = null;\n }\n return true;\n }\n\n // No semicolon = no payload (delete, capability query)\n if (this._inControlData) {\n return this._handleNoPayloadCommand();\n }\n\n // Use command parsed early in put() - i+I already validated there\n const cmd = this._parsedCommand!;\n\n // Delete action was handled by skipping payload - just execute\n if (cmd.action === KittyAction.DELETE) {\n return this._handleDelete(cmd);\n }\n\n // Per spec, subsequent chunks may omit i=, so fall back to _lastPendingKey.\n const pendingKey = cmd.id ?? this._lastPendingKey ?? 0;\n const isMoreComing = cmd.more === 1;\n const pending = this._pendingTransmissions.get(pendingKey);\n\n if (isMoreComing) {\n if (this._activeDecoder) {\n if (pending) {\n pending.totalEncodedSize += this._totalEncodedSize;\n pending.decodeError = pending.decodeError || this._decodeError;\n } else {\n this._pendingTransmissions.set(pendingKey, {\n cmd: { ...cmd },\n decoder: this._activeDecoder,\n totalEncodedSize: this._totalEncodedSize,\n decodeError: this._decodeError\n });\n }\n this._lastPendingKey = pendingKey;\n this._activeDecoder = null;\n }\n return true;\n }\n\n // Final chunk received \u2014 clear the last pending key\n if (pending) {\n this._lastPendingKey = undefined;\n }\n\n let decodeError = this._decodeError;\n let finalCmd = cmd;\n let decoder = this._activeDecoder;\n\n if (pending) {\n finalCmd = pending.cmd;\n decoder = pending.decoder;\n decodeError = decodeError || pending.decodeError;\n this._pendingTransmissions.delete(pendingKey);\n }\n\n let imageBytes = new Uint8Array(0);\n if (decoder) {\n if (decoder.end() !== DECODER_OK) {\n decodeError = true;\n }\n imageBytes = decoder.data8;\n }\n this._activeDecoder = null;\n\n // Handle command first \u2014 handlers create Blob/ImageData from imageBytes,\n // which copies the data. Only then is it safe to release the decoder's\n // wasm memory that imageBytes points into.\n const result = this._handleCommandWithBytesAndCmd(finalCmd, imageBytes, decodeError);\n if (decoder) {\n decoder.release();\n }\n return result;\n }\n\n // Command handling\n\n private _parseControlDataString(): string {\n let str = '';\n for (let i = 0; i < this._controlLength; i++) {\n str += String.fromCodePoint(this._controlData[i]);\n }\n return str;\n }\n\n private _handleNoPayloadCommand(): boolean | Promise<boolean> {\n const cmd = parseKittyCommand(this._parseControlDataString());\n\n // Per spec: specifying both i and I is an error\n if (cmd.id !== undefined && cmd.imageNumber !== undefined) {\n this._sendResponse(cmd.id, 'EINVAL:cannot specify both i and I keys', cmd.quiet ?? 0);\n return true;\n }\n\n const action = cmd.action ?? 't';\n\n switch (action) {\n case KittyAction.DELETE:\n return this._handleDelete(cmd);\n case KittyAction.QUERY:\n this._sendResponse(cmd.id ?? 0, 'OK', cmd.quiet ?? 0);\n return true;\n case KittyAction.PLACEMENT:\n return this._handlePlacement(cmd);\n default:\n // TODO: Implement remaining actions when needed:\n // - a=f (frame): animation frame operations\n // - a=a (animation): animation control\n // - a=c (compose): compose images\n if (cmd.id !== undefined) {\n this._sendResponse(cmd.id, 'EINVAL:unsupported action', cmd.quiet ?? 0);\n }\n return true;\n }\n }\n\n private _handleCommandWithBytesAndCmd(cmd: IKittyCommand, bytes: Uint8Array, decodeError: boolean): boolean | Promise<boolean> {\n const action = cmd.action ?? 't';\n\n switch (action) {\n case KittyAction.TRANSMIT: {\n const result = this._handleTransmit(cmd, bytes, decodeError);\n // Only send response when _handleTransmit didn't already respond\n // (it handles unsupported transmission medium responses internally)\n if ((cmd.transmission ?? 'd') === 'd' && cmd.id !== undefined) {\n if (decodeError) {\n this._sendResponse(cmd.id, 'EINVAL:invalid base64 data', cmd.quiet ?? 0);\n } else if (bytes.length > 0) {\n this._sendResponse(cmd.id, 'OK', cmd.quiet ?? 0);\n }\n }\n return result;\n }\n case KittyAction.TRANSMIT_DISPLAY:\n return this._handleTransmitDisplay(cmd, bytes, decodeError);\n case KittyAction.QUERY:\n return this._handleQuery(cmd, bytes, decodeError);\n case KittyAction.PLACEMENT:\n // a=p ignores any payload \u2014 image data was already transmitted\n return this._handlePlacement(cmd);\n default:\n // TODO: Implement remaining actions when needed:\n // - a=f (frame): animation frame operations\n // - a=a (animation): animation control\n // - a=c (compose): compose images\n if (cmd.id !== undefined) {\n this._sendResponse(cmd.id, 'EINVAL:unsupported action', cmd.quiet ?? 0);\n }\n return true;\n }\n }\n\n private _handlePlacement(cmd: IKittyCommand): boolean | Promise<boolean> {\n if (cmd.id === undefined) {\n return true;\n }\n const id = cmd.id;\n const image = this._kittyStorage.getImage(id);\n if (!image) {\n this._sendResponse(id, 'ENOENT:image not found', cmd.quiet ?? 0, cmd.placementId);\n return true;\n }\n const result = this._displayImage(image, cmd);\n return result.then(success => {\n this._sendResponse(id, success ? 'OK' : 'EINVAL:image rendering failed', cmd.quiet ?? 0, cmd.placementId);\n return true;\n });\n }\n\n private _handleTransmit(cmd: IKittyCommand, bytes: Uint8Array, decodeError: boolean): boolean {\n // TODO: Support file-based transmission modes (t=f, t=t, t=s)\n // Currently only supports direct transmission (t=d, the default).\n // - t=f (file): Payload is base64-encoded file path. Terminal reads image from that path.\n // - t=t (temp file): Payload is base64-encoded path in temp directory. Terminal reads, deletes.\n // - t=s: Payload is base64-encoded POSIX shm name. Terminal reads from shared memory.\n // These modes require filesystem/IPC access not available in browsers. For Node.js/Electron:\n // 1. Check cmd.transmission (t key) before treating bytes as image data\n // 2. For t=f/t/s: decode bytes as UTF-8 string (the path/name), then read file contents\n // 3. For t=d: treat bytes as image data (current behavior)\n // When implementing, also update _handleQuery to accept these transmission mediums.\n const transmission = cmd.transmission ?? 'd';\n if (transmission !== 'd') {\n if (cmd.id !== undefined) {\n this._sendResponse(cmd.id, 'EINVAL:unsupported transmission medium', cmd.quiet ?? 0);\n }\n return true;\n }\n\n if (decodeError || bytes.length === 0) return true;\n\n this._kittyStorage.storeImage(cmd.id, {\n data: new Blob([bytes as BlobPart]),\n width: cmd.width ?? 0,\n height: cmd.height ?? 0,\n format: (cmd.format ?? KittyFormat.RGBA) as 24 | 32 | 100,\n compression: cmd.compression ?? ''\n });\n return true;\n }\n\n private _handleTransmitDisplay(cmd: IKittyCommand, bytes: Uint8Array, decodeError: boolean): boolean | Promise<boolean> {\n if (decodeError) {\n if (cmd.id !== undefined) {\n this._sendResponse(cmd.id, 'EINVAL:invalid base64 data', cmd.quiet ?? 0);\n }\n return true;\n }\n\n this._handleTransmit(cmd, bytes, decodeError);\n\n const id = cmd.id ?? this._kittyStorage.lastImageId;\n const image = this._kittyStorage.getImage(id);\n if (image) {\n const result = this._displayImage(image, cmd);\n if (cmd.id !== undefined) {\n return result.then(success => {\n this._sendResponse(id, success ? 'OK' : 'EINVAL:image rendering failed', cmd.quiet ?? 0);\n return true;\n });\n }\n return result.then(() => true);\n }\n return true;\n }\n\n private _handleQuery(cmd: IKittyCommand, bytes: Uint8Array, decodeError: boolean): boolean {\n const id = cmd.id ?? 0;\n const quiet = cmd.quiet ?? 0;\n\n // Per spec: reject unsupported transmission mediums (only t=d is supported atm)\n // TODO: When filesystem support is added (Node.js/Electron), update this to accept\n // t=f (file), t=t (temp file), and t=s (shared memory) and respond OK for queries.\n const transmission = cmd.transmission ?? 'd';\n if (transmission !== 'd') {\n this._sendResponse(id, 'EINVAL:unsupported transmission medium', quiet);\n return true;\n }\n\n // Check decode error first (invalid base64)\n if (decodeError) {\n this._sendResponse(id, 'EINVAL:invalid base64 data', quiet);\n return true;\n }\n\n // Capability query (no payload) - just respond OK\n if (bytes.length === 0) {\n this._sendResponse(id, 'OK', quiet);\n return true;\n }\n\n const format = cmd.format ?? KittyFormat.RGBA;\n\n if (format === KittyFormat.PNG) {\n this._sendResponse(id, 'OK', quiet);\n } else {\n const width = cmd.width ?? 0;\n const height = cmd.height ?? 0;\n\n if (!width || !height) {\n this._sendResponse(id, 'EINVAL:width and height required for raw pixel data', quiet);\n return true;\n }\n\n const bytesPerPixel = format === KittyFormat.RGBA ? KittyPixelConstants.BYTES_PER_PIXEL_RGBA : KittyPixelConstants.BYTES_PER_PIXEL_RGB;\n const expectedBytes = width * height * bytesPerPixel;\n\n if (bytes.length < expectedBytes) {\n this._sendResponse(id, `EINVAL:insufficient pixel data`, quiet);\n return true;\n }\n\n this._sendResponse(id, 'OK', quiet);\n }\n return true;\n }\n\n private _handleDelete(cmd: IKittyCommand): boolean {\n // Per spec: default delete selector is 'a' (delete all visible placements)\n const selector = cmd.deleteSelector ?? 'a';\n\n // TODO: Distinguish lowercase (delete placements only) from uppercase\n // (delete placements + free stored image data). Currently both variants\n // free everything since we don't separate stored data from placements.\n switch (selector) {\n case 'a':\n case 'A':\n this._cleanupAllPending();\n this._kittyStorage.deleteAll();\n break;\n case 'i':\n case 'I':\n // TODO: When placement id tracking is implemented (see TODO in\n // KittyImageStorage), d=i with p=<pid> should delete only that\n // specific placement, while d=i without p should delete all\n // placements for the image.\n if (cmd.id !== undefined) {\n const pending = this._pendingTransmissions.get(cmd.id);\n if (pending) {\n pending.decoder.release();\n }\n this._removePendingEntry(cmd.id);\n this._kittyStorage.deleteById(cmd.id);\n }\n break;\n default:\n // Unsupported selectors (c, n, p, q, r, x, y, z, f) \u2014 ignore for now\n break;\n }\n return true;\n }\n\n private _sendResponse(id: number, message: string, quiet: number, placementId?: number): void {\n const isOk = message === 'OK';\n if (isOk && quiet >= 1) return;\n if (!isOk && quiet >= 2) return;\n\n const pPart = placementId ? `,p=${placementId}` : '';\n const response = `\\x1b_Gi=${id}${pPart};${message}\\x1b\\\\`;\n this._coreTerminal._core.coreService.triggerDataEvent(response);\n }\n\n // Image display\n\n private _displayImage(image: IKittyImageData, cmd: IKittyCommand): Promise<boolean> {\n return this._decodeAndDisplay(image, cmd)\n .then(() => true)\n .catch(() => false);\n }\n\n private async _decodeAndDisplay(image: IKittyImageData, cmd: IKittyCommand): Promise<void> {\n let bitmap: ImageBitmap | undefined = await this._createBitmap(image);\n\n try {\n const cropX = Math.max(0, cmd.x ?? 0);\n const cropY = Math.max(0, cmd.y ?? 0);\n const cropW = cmd.sourceWidth || (bitmap.width - cropX);\n const cropH = cmd.sourceHeight || (bitmap.height - cropY);\n\n const maxCropW = Math.max(0, bitmap.width - cropX);\n const maxCropH = Math.max(0, bitmap.height - cropY);\n const finalCropW = Math.max(0, Math.min(cropW, maxCropW));\n const finalCropH = Math.max(0, Math.min(cropH, maxCropH));\n\n if (finalCropW === 0 || finalCropH === 0) {\n throw new Error('invalid source rectangle');\n }\n\n if (cropX !== 0 || cropY !== 0 || finalCropW !== bitmap.width || finalCropH !== bitmap.height) {\n const cropped = await createImageBitmap(bitmap, cropX, cropY, finalCropW, finalCropH);\n bitmap.close();\n bitmap = cropped;\n }\n\n const cw = this._renderer.dimensions?.css.cell.width || CELL_SIZE_DEFAULT.width;\n const ch = this._renderer.dimensions?.css.cell.height || CELL_SIZE_DEFAULT.height;\n\n // Per spec: c/r default to image's natural cell dimensions.\n // If only one of c/r is specified, compute the other from image aspect ratio.\n let imgCols: number;\n let imgRows: number;\n if (cmd.columns !== undefined && cmd.rows !== undefined) {\n imgCols = cmd.columns;\n imgRows = cmd.rows;\n } else if (cmd.columns !== undefined) {\n imgCols = cmd.columns;\n imgRows = Math.max(1, Math.ceil((bitmap.height / bitmap.width) * (imgCols * cw) / ch));\n } else if (cmd.rows !== undefined) {\n imgRows = cmd.rows;\n imgCols = Math.max(1, Math.ceil((bitmap.width / bitmap.height) * (imgRows * ch) / cw));\n } else {\n imgCols = Math.ceil(bitmap.width / cw);\n imgRows = Math.ceil(bitmap.height / ch);\n }\n\n let w = bitmap.width;\n let h = bitmap.height;\n\n // Scale bitmap to fit placement rectangle when c/r are specified\n if (cmd.columns !== undefined || cmd.rows !== undefined) {\n w = Math.round(imgCols * cw);\n h = Math.round(imgRows * ch);\n }\n\n if (w * h > this._opts.pixelLimit) {\n throw new Error('image exceeds pixel limit');\n }\n\n // Save cursor position before addImage modifies it\n const buffer = this._coreTerminal._core.buffer;\n const savedX = buffer.x;\n const savedY = buffer.y;\n const savedYbase = buffer.ybase;\n\n // Determine layer based on z-index: negative = behind text, 0+ = on top.\n // When z<0 we always use the bottom layer even without allowTransparency \u2014\n // the image will simply be hidden behind the opaque text background, which\n // is the correct behavior (client asked for \"behind text\").\n const wantsBottom = cmd.zIndex !== undefined && cmd.zIndex < 0;\n const layer: ImageLayer = wantsBottom ? 'bottom' : 'top';\n\n if (w !== bitmap.width || h !== bitmap.height) {\n const scaled = await createImageBitmap(bitmap, { resizeWidth: w, resizeHeight: h });\n bitmap.close();\n bitmap = scaled;\n }\n\n // Per spec: X/Y are pixel offsets within the first cell, so clamp to cell dimensions\n const xOffset = Math.min(Math.max(0, cmd.xOffset ?? 0), cw - 1);\n const yOffset = Math.min(Math.max(0, cmd.yOffset ?? 0), ch - 1);\n if (xOffset !== 0 || yOffset !== 0) {\n // Per spec: X/Y is not added to c/r area. When c/r are explicit, the\n // total placement area remains c*cw \u00D7 r*ch pixels and the offset image\n // is clipped to fit. When c/r are unset, the padded canvas determines\n // the natural cell dimensions.\n const canvasW = (cmd.columns !== undefined) ? Math.round(imgCols * cw) : bitmap.width + xOffset;\n const canvasH = (cmd.rows !== undefined) ? Math.round(imgRows * ch) : bitmap.height + yOffset;\n const offsetCanvas = ImageRenderer.createCanvas(window.document, canvasW, canvasH);\n const offsetCtx = offsetCanvas.getContext('2d');\n if (!offsetCtx) {\n throw new Error('Failed to create offset canvas context');\n }\n offsetCtx.drawImage(bitmap, xOffset, yOffset);\n\n const offsetBitmap = await createImageBitmap(offsetCanvas);\n offsetCanvas.width = offsetCanvas.height = 0;\n bitmap.close();\n bitmap = offsetBitmap;\n w = bitmap.width;\n h = bitmap.height;\n if (w * h > this._opts.pixelLimit) {\n throw new Error('image exceeds pixel limit');\n }\n if (cmd.columns === undefined) {\n imgCols = Math.ceil(bitmap.width / cw);\n }\n if (cmd.rows === undefined) {\n imgRows = Math.ceil(bitmap.height / ch);\n }\n }\n\n const zIndex = cmd.zIndex ?? 0;\n this._kittyStorage.addImage(image.id, bitmap, true, layer, zIndex);\n bitmap = undefined; // ownership transferred to storage\n\n // Kitty cursor movement\n // Per spec: cursor placed at first column after last image column,\n // on the last row of the image. C=1 means don't move cursor.\n if (cmd.cursorMovement === 1) {\n // C=1: restore cursor to position before image was placed\n const scrolled = buffer.ybase - savedYbase;\n buffer.x = savedX;\n // Can't restore cursor to scrollback?\n buffer.y = Math.max(savedY - scrolled, 0);\n } else {\n // Default (C=0): advance cursor horizontally past the image\n // addImage already positioned cursor on the last row via lineFeeds\n buffer.x = Math.min(savedX + imgCols, this._coreTerminal.cols);\n }\n } catch (e) {\n bitmap?.close();\n throw e;\n }\n }\n\n // Create ImageBitmap from already-decoded image data.\n private async _createBitmap(image: IKittyImageData): Promise<ImageBitmap> {\n let bytes: Uint8Array = new Uint8Array(await image.data.arrayBuffer());\n\n if (image.compression === KittyCompression.ZLIB) {\n bytes = await this._decompressZlib(bytes);\n }\n\n if (image.format === KittyFormat.PNG) {\n const blob = new Blob([bytes as BlobPart], { type: 'image/png' });\n if (!window.createImageBitmap) {\n const url = URL.createObjectURL(blob);\n const img = new Image();\n return new Promise<ImageBitmap>((resolve, reject) => {\n img.addEventListener('load', () => {\n URL.revokeObjectURL(url);\n const canvas = ImageRenderer.createCanvas(window.document, img.width, img.height);\n canvas.getContext('2d')?.drawImage(img, 0, 0);\n createImageBitmap(canvas).then(resolve).catch(reject);\n });\n img.addEventListener('error', () => {\n URL.revokeObjectURL(url);\n reject(new Error('Failed to load image'));\n });\n img.src = url;\n });\n }\n return createImageBitmap(blob);\n }\n\n // Raw pixel data\n const width = image.width;\n const height = image.height;\n\n if (!width || !height) {\n throw new Error('Width and height required for raw pixel data');\n }\n\n const bytesPerPixel = image.format === KittyFormat.RGBA ? KittyPixelConstants.BYTES_PER_PIXEL_RGBA : KittyPixelConstants.BYTES_PER_PIXEL_RGB;\n const expectedBytes = width * height * bytesPerPixel;\n\n if (bytes.length < expectedBytes) {\n throw new Error('Insufficient pixel data');\n }\n\n const pixelCount = width * height;\n\n if (image.format === KittyFormat.RGBA) {\n // RGBA: use bytes directly \u2014 no copy needed\n return createImageBitmap(new ImageData(new Uint8ClampedArray(bytes.buffer as ArrayBuffer, bytes.byteOffset, pixelCount * KittyPixelConstants.BYTES_PER_PIXEL_RGBA), width, height));\n }\n\n // RGB\u2192RGBA: interleave alpha using uint32 block processing (4 pixels per iteration).\n // 3 uint32 reads + 4 uint32 writes per 4 pixels vs 28 byte reads/writes \u2014 ~6x faster.\n // Assumes little-endian (all modern browsers/Node.js).\n const data = new Uint8ClampedArray(pixelCount * KittyPixelConstants.BYTES_PER_PIXEL_RGBA);\n const src32 = new Uint32Array(bytes.buffer, bytes.byteOffset, Math.floor(bytes.byteLength / 4));\n const dst32 = new Uint32Array(data.buffer);\n const alignedPixels = pixelCount & ~3; // round down to multiple of 4\n\n let srcOffset = 0;\n let dstOffset = 0;\n for (let i = 0; i < alignedPixels; i += 4) {\n const b0 = src32[srcOffset++];\n const b1 = src32[srcOffset++];\n const b2 = src32[srcOffset++];\n // Little-endian: pixel bytes are [R,G,B] \u2192 uint32 ABGR layout\n dst32[dstOffset++] = 0xFF000000 | b0;\n dst32[dstOffset++] = 0xFF000000 | (b0 >>> 24) | (b1 << 8);\n dst32[dstOffset++] = 0xFF000000 | (b1 >>> 16) | (b2 << 16);\n dst32[dstOffset++] = 0xFF000000 | (b2 >>> 8);\n }\n\n // Handle remaining 1\u20133 pixels\n let srcByte = alignedPixels * KittyPixelConstants.BYTES_PER_PIXEL_RGB;\n let dstByte = alignedPixels * KittyPixelConstants.BYTES_PER_PIXEL_RGBA;\n for (let i = alignedPixels; i < pixelCount; i++) {\n data[dstByte] = bytes[srcByte];\n data[dstByte + 1] = bytes[srcByte + 1];\n data[dstByte + 2] = bytes[srcByte + 2];\n data[dstByte + 3] = KittyPixelConstants.ALPHA_OPAQUE;\n srcByte += KittyPixelConstants.BYTES_PER_PIXEL_RGB;\n dstByte += KittyPixelConstants.BYTES_PER_PIXEL_RGBA;\n }\n\n return createImageBitmap(new ImageData(data, width, height));\n }\n\n private async _decompressZlib(compressed: Uint8Array): Promise<Uint8Array> {\n try {\n return await this._decompress(compressed, 'deflate');\n } catch {\n return await this._decompress(compressed, 'deflate-raw');\n }\n }\n\n private async _decompress(compressed: Uint8Array, format: 'deflate' | 'deflate-raw'): Promise<Uint8Array> {\n const ds = new DecompressionStream(format);\n const writer = ds.writable.getWriter();\n writer.write(compressed as BufferSource);\n writer.close();\n\n const chunks: Uint8Array[] = [];\n const reader = ds.readable.getReader();\n\n while (true) {\n const { done, value } = await reader.read();\n if (done) break;\n chunks.push(value);\n }\n\n const totalLength = chunks.reduce((sum, chunk) => sum + chunk.length, 0);\n const result = new Uint8Array(totalLength);\n let offset = 0;\n for (const chunk of chunks) {\n result.set(chunk, offset);\n offset += chunk.length;\n }\n return result;\n }\n\n public get images(): ReadonlyMap<number, IKittyImageData> {\n return this._kittyStorage.images;\n }\n\n public get _kittyIdToStorageId(): ReadonlyMap<number, number> {\n return this._kittyStorage.kittyIdToStorageId;\n }\n\n public get pendingTransmissions(): ReadonlyMap<number, IPendingTransmission> {\n return this._pendingTransmissions;\n }\n}\n", "/**\n * Copyright (c) 2026 The xterm.js authors. All rights reserved.\n * @license MIT\n *\n * Kitty graphics protocol types, constants, and parsing utilities.\n */\n\nimport type Base64Decoder from 'xterm-wasm-parts/lib/base64/Base64Decoder.wasm';\n\n// Kitty graphics protocol action types.\n// See: https://sw.kovidgoyal.net/kitty/graphics-protocol/#control-data-reference under key 'a'.\nexport const enum KittyAction {\n TRANSMIT = 't',\n TRANSMIT_DISPLAY = 'T',\n QUERY = 'q',\n PLACEMENT = 'p',\n DELETE = 'd'\n}\n\n// Kitty graphics protocol format types.\n// See: https://sw.kovidgoyal.net/kitty/graphics-protocol/#control-data-reference\nexport const enum KittyFormat {\n RGB = 24,\n RGBA = 32,\n PNG = 100\n}\n\n// Kitty graphics protocol compression types.\n// See: https://sw.kovidgoyal.net/kitty/graphics-protocol/#control-data-reference under key 'o'.\nexport const enum KittyCompression {\n NONE = '',\n ZLIB = 'z'\n}\n\n// Kitty graphics protocol control data keys.\n// See: https://sw.kovidgoyal.net/kitty/graphics-protocol/#control-data-reference\nexport const enum KittyKey {\n // Action to perform (t=transmit, T=transmit+display, q=query, p=placement, d=delete)\n ACTION = 'a',\n // Image format (24=RGB, 32=RGBA, 100=PNG)\n FORMAT = 'f',\n // Image ID for referencing stored images\n ID = 'i',\n // Image number (alternative to ID, terminal assigns ID)\n IMAGE_NUMBER = 'I',\n // Source image width in pixels\n WIDTH = 's',\n // Source image height in pixels\n HEIGHT = 'v',\n // The left edge (in pixels) of the image area to display\n X_OFFSET = 'x',\n // The top edge (in pixels) of the image area to display\n Y_OFFSET = 'y',\n // Width (in pixels) of the source rectangle to display\n SOURCE_WIDTH = 'w',\n // Height (in pixels) of the source rectangle to display\n SOURCE_HEIGHT = 'h',\n // Horizontal offset (in pixels) within the first cell\n X_PLACEMENT_OFFSET = 'X',\n // Vertical offset (in pixels) within the first cell\n Y_PLACEMENT_OFFSET = 'Y',\n // Number of terminal columns to display the image over\n COLUMNS = 'c',\n // Number of terminal rows to display the image over\n ROWS = 'r',\n // More data flag (1=more chunks coming, 0=final chunk)\n MORE = 'm',\n // Compression type (z=zlib). This is essential for chunking larger images.\n COMPRESSION = 'o',\n // Quiet mode (1=suppress OK responses, 2=suppress error responses)\n QUIET = 'q',\n // Cursor movement policy (0=move cursor after image, 1=don't move cursor)\n CURSOR_MOVEMENT = 'C',\n // Z-index for image layering (negative = behind text, 0+ = on top)\n Z_INDEX = 'z',\n // Transmission medium (d=direct, f=file, t=temp file, s=shared memory)\n TRANSMISSION = 't',\n // Delete selector (a/A=all, i/I=by id, c/C=at cursor, etc.) \u2014 only used when a=d\n DELETE_SELECTOR = 'd',\n // Placement ID for targeting specific placements\n PLACEMENT_ID = 'p'\n}\n\n// Pixel format constants\nexport const enum KittyPixelConstants {\n BYTES_PER_PIXEL_RGB = 3,\n BYTES_PER_PIXEL_RGBA = 4,\n ALPHA_OPAQUE = 255\n}\n\n// Parsed Kitty graphics command.\nexport interface IKittyCommand {\n action?: string;\n format?: number;\n id?: number;\n imageNumber?: number;\n width?: number;\n height?: number;\n x?: number;\n y?: number;\n sourceWidth?: number;\n sourceHeight?: number;\n xOffset?: number;\n yOffset?: number;\n columns?: number;\n rows?: number;\n more?: number;\n quiet?: number;\n cursorMovement?: number;\n zIndex?: number;\n transmission?: string;\n deleteSelector?: string;\n placementId?: number;\n compression?: string;\n payload?: string;\n}\n\n// Pending chunked transmission state.\n// Stores metadata from the first chunk while accumulating decoded payload data.\nexport interface IPendingTransmission {\n // The parsed command from the first chunk (contains action, format, dimensions, etc.)\n cmd: IKittyCommand;\n // Decoder used across chunked payloads\n decoder: Base64Decoder;\n // Total encoded (base64) bytes received across all chunks - for size limit enforcement\n totalEncodedSize: number;\n // Whether any chunk has failed to decode\n decodeError: boolean;\n}\n\n// Stored Kitty image data.\nexport interface IKittyImageData {\n id: number;\n // Decoded image data stored as Blob (off JS heap) to avoid 2GB heap limit\n data: Blob;\n width: number;\n height: number;\n format: 24 | 32 | 100;\n compression?: string;\n}\n\n// Parses Kitty graphics control data into a command object.\nexport function parseKittyCommand(data: string): IKittyCommand {\n const cmd: IKittyCommand = {};\n const parts = data.split(',');\n\n for (const part of parts) {\n const eqIdx = part.indexOf('=');\n if (eqIdx === -1) continue;\n\n const key = part.substring(0, eqIdx);\n const value = part.substring(eqIdx + 1);\n\n // Handle string keys first\n if (key === KittyKey.ACTION) {\n cmd.action = value;\n continue;\n }\n if (key === KittyKey.COMPRESSION) {\n cmd.compression = value;\n continue;\n }\n if (key === KittyKey.TRANSMISSION) {\n cmd.transmission = value;\n continue;\n }\n if (key === KittyKey.DELETE_SELECTOR) {\n cmd.deleteSelector = value;\n continue;\n }\n const numValue = parseInt(value, 10);\n switch (key) {\n case KittyKey.FORMAT: cmd.format = numValue; break;\n case KittyKey.ID: cmd.id = numValue; break;\n case KittyKey.IMAGE_NUMBER: cmd.imageNumber = numValue; break;\n case KittyKey.WIDTH: cmd.width = numValue; break;\n case KittyKey.HEIGHT: cmd.height = numValue; break;\n case KittyKey.X_OFFSET: cmd.x = numValue; break;\n case KittyKey.Y_OFFSET: cmd.y = numValue; break;\n case KittyKey.SOURCE_WIDTH: cmd.sourceWidth = numValue; break;\n case KittyKey.SOURCE_HEIGHT: cmd.sourceHeight = numValue; break;\n case KittyKey.X_PLACEMENT_OFFSET: cmd.xOffset = numValue; break;\n case KittyKey.Y_PLACEMENT_OFFSET: cmd.yOffset = numValue; break;\n case KittyKey.COLUMNS: cmd.columns = numValue; break;\n case KittyKey.ROWS: cmd.rows = numValue; break;\n case KittyKey.MORE: cmd.more = numValue; break;\n case KittyKey.QUIET: cmd.quiet = numValue; break;\n case KittyKey.CURSOR_MOVEMENT: cmd.cursorMovement = numValue; break;\n case KittyKey.Z_INDEX: cmd.zIndex = numValue; break;\n case KittyKey.PLACEMENT_ID: cmd.placementId = numValue; break;\n }\n }\n\n return cmd;\n}\n", "/**\n * Copyright (c) 2026 The xterm.js authors. All rights reserved.\n * @license MIT\n */\n\nimport { IDisposable } from '@xterm/xterm';\nimport { ImageStorage } from '../ImageStorage';\nimport { ImageLayer, IAddImageOpts } from '../Types';\nimport { IKittyImageData } from './KittyGraphicsTypes';\n\n// Kitty-specific image storage controller.\n//\n// Wraps shared ImageStorage with kitty protocol semantics:\n// - tracks transmitted image payloads by kitty image id\n// - tracks kitty image id -> shared ImageStorage id mapping for displayed images\n// - mirrors shared-storage evictions into kitty maps\n// - applies protocol-level undisplayed-image eviction policy\nexport class KittyImageStorage implements IDisposable {\n private static readonly _maxStoredImages = 256;\n\n private _nextImageId = 1;\n private readonly _images: Map<number, IKittyImageData> = new Map();\n // TODO: Support multiple placements per image. The kitty spec identifies\n // placements by an (image id, placement id) pair \u2014 same i + different p\n // values should coexist, and same i + same p should replace the prior\n // placement. Currently we track only one storage entry per kitty image id,\n // so multiple placements of the same image overwrite each other. Fixing\n // this requires changing these maps to Map<number, Map<number, number>>\n // (kittyId \u2192 placementId \u2192 storageId) and updating addImage/deleteById\n // accordingly. The underlying shared ImageStorage would also need to\n // support multiple entries per logical image.\n private readonly _kittyIdToStorageId: Map<number, number> = new Map();\n private readonly _storageIdToKittyId: Map<number, number> = new Map();\n\n private readonly _previousOnImageDeleted: ((storageId: number) => void) | undefined;\n private readonly _wrappedOnImageDeleted: (storageId: number) => void;\n private readonly _handleStorageImageDeleted = (storageId: number): void => {\n const kittyId = this._storageIdToKittyId.get(storageId);\n if (kittyId !== undefined) {\n this._kittyIdToStorageId.delete(kittyId);\n this._storageIdToKittyId.delete(storageId);\n this._images.delete(kittyId);\n }\n };\n private _addImageOpts: IAddImageOpts = { scrolling: true, layer: 'top', zIndex: 0, cursorPos: 'iip' };\n\n constructor(\n private readonly _storage: ImageStorage\n ) {\n this._previousOnImageDeleted = this._storage.onImageDeleted;\n this._wrappedOnImageDeleted = (storageId: number) => {\n this._previousOnImageDeleted?.(storageId);\n this._handleStorageImageDeleted(storageId);\n };\n this._storage.onImageDeleted = this._wrappedOnImageDeleted;\n }\n\n public reset(): void {\n this._nextImageId = 1;\n this._images.clear();\n this._kittyIdToStorageId.clear();\n this._storageIdToKittyId.clear();\n }\n\n public dispose(): void {\n this.reset();\n if (this._storage.onImageDeleted === this._wrappedOnImageDeleted) {\n this._storage.onImageDeleted = this._previousOnImageDeleted;\n }\n }\n\n public storeImage(id: number | undefined, imageData: Omit<IKittyImageData, 'id'>): number {\n const imageId = id ?? this._nextImageId++;\n\n const oldStorageId = this._kittyIdToStorageId.get(imageId);\n if (oldStorageId !== undefined) {\n this._storage.deleteImage(oldStorageId);\n this._kittyIdToStorageId.delete(imageId);\n this._storageIdToKittyId.delete(oldStorageId);\n }\n\n if (!this._images.has(imageId) && this._images.size >= KittyImageStorage._maxStoredImages) {\n this._evictUndisplayedImages();\n }\n\n this._images.set(imageId, {\n ...imageData,\n id: imageId\n });\n return imageId;\n }\n\n public addImage(kittyId: number, image: HTMLCanvasElement | ImageBitmap, scrolling: boolean, layer: ImageLayer, zIndex: number): void {\n // Clean up stale reverse-mapping from a previous placement of the same\n // kitty image. The old shared-storage entry is kept (it may still be\n // visible on screen) but its reverse mapping is removed so that eviction\n // of the old entry won't incorrectly delete the kitty image data.\n const oldStorageId = this._kittyIdToStorageId.get(kittyId);\n if (oldStorageId !== undefined) {\n this._storageIdToKittyId.delete(oldStorageId);\n }\n this._addImageOpts.scrolling = scrolling;\n this._addImageOpts.layer = layer;\n this._addImageOpts.zIndex = zIndex;\n const storageId = this._storage.addImage(image, this._addImageOpts);\n this._kittyIdToStorageId.set(kittyId, storageId);\n this._storageIdToKittyId.set(storageId, kittyId);\n }\n\n public getImage(kittyId: number): IKittyImageData | undefined {\n return this._images.get(kittyId);\n }\n\n public deleteById(kittyId: number): void {\n this._images.delete(kittyId);\n const storageId = this._kittyIdToStorageId.get(kittyId);\n if (storageId !== undefined) {\n this._storage.deleteImage(storageId);\n this._kittyIdToStorageId.delete(kittyId);\n this._storageIdToKittyId.delete(storageId);\n }\n }\n\n public deleteAll(): void {\n this._images.clear();\n for (const storageId of this._kittyIdToStorageId.values()) {\n this._storage.deleteImage(storageId);\n }\n this._kittyIdToStorageId.clear();\n this._storageIdToKittyId.clear();\n }\n\n public get images(): ReadonlyMap<number, IKittyImageData> {\n return this._images;\n }\n\n public get kittyIdToStorageId(): ReadonlyMap<number, number> {\n return this._kittyIdToStorageId;\n }\n\n public get lastImageId(): number {\n return this._nextImageId - 1;\n }\n\n private _evictUndisplayedImages(): void {\n for (const [kittyId] of this._images) {\n if (this._images.size <= KittyImageStorage._maxStoredImages / 2) {\n break;\n }\n if (!this._kittyIdToStorageId.has(kittyId)) {\n this._images.delete(kittyId);\n }\n }\n }\n}\n", "/**\n * Copyright (c) 2020, 2023 The xterm.js authors. All rights reserved.\n * @license MIT\n */\n\nimport { SixelImageStorage } from './SixelImageStorage';\nimport { IDcsHandler, IParams, IImageAddonOptions, ITerminalExt, AttributeData, IResetHandler, ReadonlyColorSet } from './Types';\nimport { toRGBA8888, BIG_ENDIAN, PALETTE_ANSI_256, PALETTE_VT340_COLOR } from 'sixel/lib/Colors';\nimport { RGBA8888 } from 'sixel/lib/Types';\nimport { ImageRenderer } from './ImageRenderer';\n\nimport { DecoderAsync, Decoder } from 'sixel/lib/Decoder';\n\n// always free decoder ressources after decoding if it exceeds this limit\nconst MEM_PERMA_LIMIT = 4194304; // 1024 pixels * 1024 pixels * 4 channels = 4MB\n\n// custom default palette: VT340 (lower 16 colors) + ANSI256 (up to 256) + zeroed (up to 4096)\nconst DEFAULT_PALETTE = PALETTE_ANSI_256;\nDEFAULT_PALETTE.set(PALETTE_VT340_COLOR);\n\n\nexport class SixelHandler implements IDcsHandler, IResetHandler {\n private _size = 0;\n private _aborted = false;\n private _dec: Decoder | undefined;\n\n constructor(\n private readonly _opts: IImageAddonOptions,\n private readonly _storage: SixelImageStorage,\n private readonly _coreTerminal: ITerminalExt\n ) {\n DecoderAsync({\n memoryLimit: this._opts.pixelLimit * 4,\n palette: DEFAULT_PALETTE,\n paletteLimit: this._opts.sixelPaletteLimit\n }).then(d => this._dec = d);\n }\n\n public reset(): void {\n /**\n * reset sixel decoder to defaults:\n * - release all memory\n * - nullify palette (4096)\n * - apply default palette (256)\n */\n if (this._dec) {\n this._dec.release();\n // FIXME: missing interface on decoder to nullify full palette\n (this._dec as any)._palette.fill(0);\n this._dec.init(0, DEFAULT_PALETTE, this._opts.sixelPaletteLimit);\n }\n }\n\n public hook(params: IParams): void {\n this._size = 0;\n this._aborted = false;\n if (this._dec) {\n const fillColor = params.params[1] === 1 ? 0 : extractActiveBg(\n this._coreTerminal._core._inputHandler._curAttrData,\n this._coreTerminal._core._themeService?.colors);\n this._dec.init(fillColor, null, this._opts.sixelPaletteLimit);\n }\n }\n\n public put(data: Uint32Array, start: number, end: number): void {\n if (this._aborted || !this._dec) {\n return;\n }\n this._size += end - start;\n if (this._size > this._opts.sixelSizeLimit) {\n console.warn(`SIXEL: too much data, aborting`);\n this._aborted = true;\n this._dec.release();\n return;\n }\n try {\n this._dec.decode(data, start, end);\n } catch (e) {\n console.warn(`SIXEL: error while decoding image - ${e}`);\n this._aborted = true;\n this._dec.release();\n }\n }\n\n public unhook(success: boolean): boolean | Promise<boolean> {\n if (this._aborted || !success || !this._dec) {\n return true;\n }\n\n const width = this._dec.width;\n const height = this._dec.height;\n\n // partial fix for https://github.com/jerch/xterm-addon-image/issues/37\n if (!width || !height) {\n if (height) {\n this._storage.advanceCursor(height);\n }\n return true;\n }\n\n const canvas = ImageRenderer.createCanvas(undefined, width, height);\n canvas.getContext('2d')?.putImageData(new ImageData(this._dec.data8 as Uint8ClampedArray<ArrayBuffer>, width, height), 0, 0);\n if (this._dec.memoryUsage > MEM_PERMA_LIMIT) {\n this._dec.release();\n }\n this._storage.addImage(canvas);\n return true;\n }\n}\n\n\n/**\n * Some helpers to extract current terminal colors.\n */\n\n// get currently active background color from terminal\n// also respect INVERSE setting\nfunction extractActiveBg(attr: AttributeData, colors: ReadonlyColorSet | undefined): RGBA8888 {\n let bg = 0;\n if (!colors) {\n // FIXME: theme service is prolly not available yet,\n // happens if .open() was not called yet (bug in core?)\n return bg;\n }\n if (attr.isInverse()) {\n if (attr.isFgDefault()) {\n bg = convertLe(colors.foreground.rgba);\n } else if (attr.isFgRGB()) {\n const t = (attr.constructor as typeof AttributeData).toColorRGB(attr.getFgColor());\n bg = toRGBA8888(...t);\n } else {\n bg = convertLe(colors.ansi[attr.getFgColor()].rgba);\n }\n } else {\n if (attr.isBgDefault()) {\n bg = convertLe(colors.background.rgba);\n } else if (attr.isBgRGB()) {\n const t = (attr.constructor as typeof AttributeData).toColorRGB(attr.getBgColor());\n bg = toRGBA8888(...t);\n } else {\n bg = convertLe(colors.ansi[attr.getBgColor()].rgba);\n }\n }\n return bg;\n}\n\n// rgba values on the color managers are always in BE, thus convert to LE\nfunction convertLe(color: number): RGBA8888 {\n if (BIG_ENDIAN) return color;\n return (color & 0xFF) << 24 | (color >>> 8 & 0xFF) << 16 | (color >>> 16 & 0xFF) << 8 | color >>> 24 & 0xFF;\n}\n", "/**\n * Copyright (c) 2020 The xterm.js authors. All rights reserved.\n * @license MIT\n */\n\nimport { ImageStorage, CELL_SIZE_DEFAULT } from './ImageStorage';\nimport { IImageAddonOptions, ITerminalExt, IAddImageOpts } from './Types';\nimport { ImageRenderer } from './ImageRenderer';\n\n/**\n * Sixel-specific image storage controller.\n *\n * Wraps the shared ImageStorage with sixel protocol semantics:\n * - Cursor behavior governed by DECSET 80 (sixelScrolling option)\n * - advanceCursor for empty sixels carrying only height\n */\nexport class SixelImageStorage {\n private _addImageOpts: IAddImageOpts = { scrolling: true, layer: 'top', zIndex: 0, cursorPos: 'vt340' };\n constructor(\n private readonly _storage: ImageStorage,\n private readonly _opts: IImageAddonOptions,\n private readonly _renderer: ImageRenderer,\n private readonly _terminal: ITerminalExt\n ) {}\n\n /**\n * Add a sixel image to storage.\n * Cursor behavior depends on the sixelScrolling option (DECSET 80).\n */\n public addImage(img: HTMLCanvasElement | ImageBitmap): void {\n this._addImageOpts.scrolling = this._opts.sixelScrolling;\n this._storage.addImage(img, this._addImageOpts);\n }\n\n /**\n * Only advance text cursor.\n * This is an edge case from empty sixels carrying only a height but no pixels.\n * Partially fixes https://github.com/jerch/xterm-addon-image/issues/37.\n */\n public advanceCursor(height: number): void {\n if (this._opts.sixelScrolling) {\n let cellSize = this._renderer.cellSize;\n if (cellSize.width === -1 || cellSize.height === -1) {\n cellSize = CELL_SIZE_DEFAULT;\n }\n const rows = Math.ceil(height / cellSize.height);\n for (let i = 1; i < rows; ++i) {\n this._terminal._core._inputHandler.lineFeed();\n }\n }\n }\n}\n", "/**\n * Copyright (c) 2023 The xterm.js authors. All rights reserved.\n * @license MIT\n */\n\nimport { IAddImageOpts } from './Types';\nimport { ImageStorage } from './ImageStorage';\n\n/**\n * IIP (iTerm Image Protocol) specific image storage controller.\n *\n * Wraps the shared ImageStorage with IIP protocol semantics:\n * - Always uses scrolling mode (cursor advances with image)\n */\nexport class IIPImageStorage {\n private _addImageOpts: IAddImageOpts = { scrolling: true, layer: 'top', zIndex: 0, cursorPos: 'iip' };\n constructor(\n private readonly _storage: ImageStorage\n ) {}\n\n /**\n * Add an IIP image to storage.\n * Always uses scrolling mode \u2014 cursor advances past the image.\n */\n public addImage(img: HTMLCanvasElement | ImageBitmap): void {\n this._storage.addImage(img, this._addImageOpts);\n }\n}\n", "/**\n * Copyright (c) 2020 The xterm.js authors. All rights reserved.\n * @license MIT\n */\n\nimport type { ITerminalAddon, IDisposable } from '@xterm/xterm';\nimport type { ImageAddon as IImageApi } from '@xterm/addon-image';\nimport { Emitter, type IEvent } from 'common/Event';\nimport { IIPHandler } from './IIPHandler';\nimport { ImageRenderer } from './ImageRenderer';\nimport { ImageStorage, CELL_SIZE_DEFAULT } from './ImageStorage';\nimport { KittyGraphicsHandler } from './kitty/KittyGraphicsHandler';\nimport { KittyImageStorage } from './kitty/KittyImageStorage';\nimport { SixelHandler } from './SixelHandler';\nimport { SixelImageStorage } from './SixelImageStorage';\nimport { IIPImageStorage } from './IIPImageStorage';\nimport { ITerminalExt, IImageAddonOptions, IResetHandler } from './Types';\n\n\n/**\n * Document VT features provided by this addon.\n *\n * @vt: #E[Supported via @xterm/addon-image.] DCS SIXEL \"SIXEL Graphics\" \"DCS Ps ; Ps ; Ps ; q Pt ST\" \"Draw SIXEL image.\"\n *\n * Sixel support is provided by the addon @xterm/addon-image with these limitations:\n * - immediate coloring (no shared palette, allows high color settings of `img2sixel`)\n * - max. palette size of 4096 colors\n * - max. pixel width of 16K\n * - max. 25 MB per sixel sequence\n * - VT340 cursor positioning (begin of last sixel data row)\n *\n * See [addon readme](https://github.com/xtermjs/xterm.js/tree/master/addons/addon-image) for more details.\n *\n *\n * @vt: #E[Supported via @xterm/addon-image.] OSC 1337 \"iTerm2 Commands\" \"OSC 1337 ; Pt BEL\" \"Custom iTerm2 commands.\"\n *\n * Only the inline image protocol (IIP) is supported by the addon @xterm/addon-image with\n * the following limitations:\n * - sequence:\n * - format: `OSC 1337 ; File=inline=1 ; size=<unencoded size> ; ... : <base64 payload> BEL`\n * - size param must be set and payload may not exceed CEIL(size * 4 / 3)\n * - strict base64 handling as of RFC4648 \u00A74 (standard alphabet, optional padding,\n * no separator bytes allowed)\n * - supported params: size, name, width, height, preserveAspectRatio\n * - image formats: PNG, JPEG and GIF\n * - no animation support (renders first image of a GIF)\n * - no multipart support\n * - VT340 cursor positioning (begin of last sixel data row)\n *\n * See [addon readme](https://github.com/xtermjs/xterm.js/tree/master/addons/addon-image)\n * and [iTerm2 IIP docs](https://iterm2.com/documentation-images.html) for more details.\n *\n *\n * @vt: #E[Supported via @xterm/addon-image.] APC KITTY_GRAPHICS \"Kitty Graphics\" \"APC G Pt ST\" \"Kitty Graphics Protocol.\"\n *\n * Kitty graphics support is provided by the addon @xterm/addon-image.\n * Note that while basic image output already works, this is still work in progress.\n */\n\n// default values of addon ctor options\nconst DEFAULT_OPTIONS: IImageAddonOptions = {\n enableSizeReports: true,\n pixelLimit: 16777216, // limit to 4096 * 4096 pixels\n sixelSupport: true,\n sixelScrolling: true,\n sixelPaletteLimit: 4096,\n sixelSizeLimit: 33554432,\n storageLimit: 128,\n showPlaceholder: true,\n iipSupport: true,\n iipSizeLimit: 33554432,\n kittySupport: true,\n kittySizeLimit: 33554432\n};\n\n// max palette size supported by the sixel lib (compile time setting)\nconst MAX_SIXEL_PALETTE_SIZE = 4096;\n\n// definitions for _xtermGraphicsAttributes sequence\nconst enum GaItem {\n COLORS = 1,\n SIXEL_GEO = 2,\n REGIS_GEO = 3\n}\nconst enum GaAction {\n READ = 1,\n SET_DEFAULT = 2,\n SET = 3,\n READ_MAX = 4\n}\nconst enum GaStatus {\n SUCCESS = 0,\n ITEM_ERROR = 1,\n ACTION_ERROR = 2,\n FAILURE = 3\n}\n\n\nexport class ImageAddon implements ITerminalAddon, IImageApi {\n private _opts: IImageAddonOptions;\n private _defaultOpts: IImageAddonOptions;\n private _storage: ImageStorage | undefined;\n private _renderer: ImageRenderer | undefined;\n private _disposables: IDisposable[] = [];\n private _terminal: ITerminalExt | undefined;\n private _handlers: Map<String, IResetHandler> = new Map();\n private readonly _onImageAdded = new Emitter<void>();\n public readonly onImageAdded: IEvent<void> = this._onImageAdded.event;\n\n constructor(opts?: Partial<IImageAddonOptions>) {\n this._opts = Object.assign({}, DEFAULT_OPTIONS, opts);\n this._defaultOpts = Object.assign({}, DEFAULT_OPTIONS, opts);\n }\n\n public dispose(): void {\n for (const obj of this._disposables) {\n obj.dispose();\n }\n this._disposables.length = 0;\n this._handlers.clear();\n this._onImageAdded.dispose();\n }\n\n private _disposeLater(...args: IDisposable[]): void {\n for (const obj of args) {\n this._disposables.push(obj);\n }\n }\n\n public activate(terminal: ITerminalExt): void {\n this._terminal = terminal;\n\n // internal data structures\n this._renderer = new ImageRenderer(terminal);\n this._storage = new ImageStorage(terminal, this._renderer, this._opts);\n this._storage.onImageAdded = () => this._onImageAdded.fire();\n\n // enable size reports\n if (this._opts.enableSizeReports) {\n const windowOps = terminal.options.windowOptions ?? {};\n windowOps.getWinSizePixels = true;\n windowOps.getCellSizePixels = true;\n windowOps.getWinSizeChars = true;\n terminal.options.windowOptions = windowOps;\n }\n\n this._disposeLater(\n this._renderer,\n this._storage,\n\n // DECSET/DECRST/DA1/XTSMGRAPHICS handlers\n terminal.parser.registerCsiHandler({ prefix: '?', final: 'h' }, params => this._decset(params)),\n terminal.parser.registerCsiHandler({ prefix: '?', final: 'l' }, params => this._decrst(params)),\n terminal.parser.registerCsiHandler({ final: 'c' }, params => this._da1(params)),\n terminal.parser.registerCsiHandler({ prefix: '?', final: 'S' }, params => this._xtermGraphicsAttributes(params)),\n\n // render hook\n terminal.onRender(range => this._storage?.render(range)),\n\n /**\n * reset handlers covered:\n * - DECSTR\n * - RIS\n * - Terminal.reset()\n */\n terminal.parser.registerCsiHandler({ intermediates: '!', final: 'p' }, () => this.reset()),\n terminal.parser.registerEscHandler({ final: 'c' }, () => this.reset()),\n terminal._core._inputHandler.onRequestReset(() => this.reset()),\n\n // wipe canvas and delete alternate images on buffer switch\n terminal.buffer.onBufferChange(() => this._storage?.wipeAlternate()),\n\n // extend images to the right on resize\n terminal.onResize(metrics => this._storage?.viewportResize(metrics))\n );\n\n // SIXEL handler\n if (this._opts.sixelSupport) {\n const sixelStorage = new SixelImageStorage(this._storage!, this._opts, this._renderer!, terminal);\n const sixelHandler = new SixelHandler(this._opts, sixelStorage, terminal);\n this._handlers.set('sixel', sixelHandler);\n this._disposeLater(\n terminal._core._inputHandler._parser.registerDcsHandler({ final: 'q' }, sixelHandler)\n );\n }\n\n // iTerm IIP handler\n if (this._opts.iipSupport) {\n const iipStorage = new IIPImageStorage(this._storage!);\n const iipHandler = new IIPHandler(this._opts, this._renderer!, iipStorage, terminal);\n this._handlers.set('iip', iipHandler);\n this._disposeLater(\n terminal._core._inputHandler._parser.registerOscHandler(1337, iipHandler)\n );\n }\n\n // Kitty graphics handler\n if (this._opts.kittySupport) {\n const kittyStorage = new KittyImageStorage(this._storage!);\n const kittyHandler = new KittyGraphicsHandler(this._opts, this._renderer!, kittyStorage, terminal);\n this._handlers.set('kitty', kittyHandler);\n this._disposeLater(\n kittyStorage,\n kittyHandler,\n terminal._core._inputHandler._parser.registerApcHandler({ final: 'G' }, kittyHandler)\n );\n }\n }\n\n // Note: storageLimit is skipped here to not intoduce a surprising side effect.\n public reset(): boolean {\n // reset options customizable by sequences to defaults\n this._opts.sixelScrolling = this._defaultOpts.sixelScrolling;\n this._opts.sixelPaletteLimit = this._defaultOpts.sixelPaletteLimit;\n // also clear image storage\n this._storage?.reset();\n // reset protocol handlers\n for (const handler of this._handlers.values()) {\n handler.reset();\n }\n return false;\n }\n\n public get storageLimit(): number {\n return this._storage?.getLimit() || -1;\n }\n\n public set storageLimit(limit: number) {\n this._storage?.setLimit(limit);\n this._opts.storageLimit = limit;\n }\n\n public get storageUsage(): number {\n if (this._storage) {\n return this._storage.getUsage();\n }\n return -1;\n }\n\n public get showPlaceholder(): boolean {\n return this._opts.showPlaceholder;\n }\n\n public set showPlaceholder(value: boolean) {\n this._opts.showPlaceholder = value;\n this._renderer?.showPlaceholder(value);\n }\n\n public getImageAtBufferCell(x: number, y: number): HTMLCanvasElement | undefined {\n return this._storage?.getImageAtBufferCell(x, y);\n }\n\n public extractTileAtBufferCell(x: number, y: number): HTMLCanvasElement | undefined {\n return this._storage?.extractTileAtBufferCell(x, y);\n }\n\n private _report(s: string): void {\n this._terminal?._core.input(s, false);\n }\n\n private _decset(params: (number | number[])[]): boolean {\n for (let i = 0; i < params.length; ++i) {\n switch (params[i]) {\n case 80:\n this._opts.sixelScrolling = false;\n break;\n }\n }\n return false;\n }\n\n private _decrst(params: (number | number[])[]): boolean {\n for (let i = 0; i < params.length; ++i) {\n switch (params[i]) {\n case 80:\n this._opts.sixelScrolling = true;\n break;\n }\n }\n return false;\n }\n\n // overload DA to return something more appropriate\n private _da1(params: (number | number[])[]): boolean {\n if (params[0]) {\n return true;\n }\n // reported features:\n // 62 - VT220\n // 4 - SIXEL support\n // 9 - charsets\n // 22 - ANSI colors\n if (this._opts.sixelSupport) {\n this._report(`\\x1b[?62;4;9;22c`);\n return true;\n }\n return false;\n }\n\n /**\n * Implementation of xterm's graphics attribute sequence.\n *\n * Supported features:\n * - read/change palette limits (max 4096 by sixel lib)\n * - read SIXEL canvas geometry (reports current window canvas or\n * squared pixelLimit if canvas > pixel limit)\n *\n * Everything else is deactivated.\n */\n private _xtermGraphicsAttributes(params: (number | number[])[]): boolean {\n if (params.length < 2) {\n return true;\n }\n if (params[0] === GaItem.COLORS) {\n switch (params[1]) {\n case GaAction.READ:\n this._report(`\\x1b[?${params[0]};${GaStatus.SUCCESS};${this._opts.sixelPaletteLimit}S`);\n return true;\n case GaAction.SET_DEFAULT:\n this._opts.sixelPaletteLimit = this._defaultOpts.sixelPaletteLimit;\n this._report(`\\x1b[?${params[0]};${GaStatus.SUCCESS};${this._opts.sixelPaletteLimit}S`);\n // also reset protocol handlers for now\n for (const handler of this._handlers.values()) {\n handler.reset();\n }\n return true;\n case GaAction.SET:\n if (params.length > 2 && !(params[2] instanceof Array) && params[2] <= MAX_SIXEL_PALETTE_SIZE) {\n this._opts.sixelPaletteLimit = params[2];\n this._report(`\\x1b[?${params[0]};${GaStatus.SUCCESS};${this._opts.sixelPaletteLimit}S`);\n } else {\n this._report(`\\x1b[?${params[0]};${GaStatus.ACTION_ERROR}S`);\n }\n return true;\n case GaAction.READ_MAX:\n this._report(`\\x1b[?${params[0]};${GaStatus.SUCCESS};${MAX_SIXEL_PALETTE_SIZE}S`);\n return true;\n default:\n this._report(`\\x1b[?${params[0]};${GaStatus.ACTION_ERROR}S`);\n return true;\n }\n }\n if (params[0] === GaItem.SIXEL_GEO) {\n switch (params[1]) {\n // we only implement read and read_max here\n case GaAction.READ:\n let width = this._renderer?.dimensions?.css.canvas.width;\n let height = this._renderer?.dimensions?.css.canvas.height;\n if (!width || !height) {\n // for some reason we have no working image renderer\n // --> fallback to default cell size\n const cellSize = CELL_SIZE_DEFAULT;\n width = (this._terminal?.cols || 80) * cellSize.width;\n height = (this._terminal?.rows || 24) * cellSize.height;\n }\n if (width * height < this._opts.pixelLimit) {\n this._report(`\\x1b[?${params[0]};${GaStatus.SUCCESS};${width.toFixed(0)};${height.toFixed(0)}S`);\n } else {\n // if we overflow pixelLimit report that squared instead\n const x = Math.floor(Math.sqrt(this._opts.pixelLimit));\n this._report(`\\x1b[?${params[0]};${GaStatus.SUCCESS};${x};${x}S`);\n }\n return true;\n case GaAction.READ_MAX:\n // read_max returns pixelLimit as square area\n const x = Math.floor(Math.sqrt(this._opts.pixelLimit));\n this._report(`\\x1b[?${params[0]};${GaStatus.SUCCESS};${x};${x}S`);\n return true;\n default:\n this._report(`\\x1b[?${params[0]};${GaStatus.ACTION_ERROR}S`);\n return true;\n }\n }\n // exit with error on ReGIS or any other requests\n this._report(`\\x1b[?${params[0]};${GaStatus.ITEM_ERROR}S`);\n return true;\n }\n}\n"],
|
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"canvas", "ImageRenderer", "room", "used", "current", "old", "oldSpec", "imgId", "import_Base64Decoder", "import_QoiDecoder", "toStr", "data", "s", "i", "toInt", "v", "toSize", "toName", "bs", "b", "DECODERS", "FILE_MARKER", "MULTIPARTFILE_MARKER", "FILEPART_MARKER", "FILEEND_MARKER", "REPORTCELLSIZE_MARKER", "MAX_FIELDCHARS", "HeaderParser", "k", "start", "end", "state", "pos", "buffer", "c", "UNSUPPORTED_TYPE", "imageType", "d", "d32", "width", "height", "jpgSize", "dim", "pos", "limit", "i", "len", "blockLength", "DEFAULT_HEADER", "IIPHandler", "_opts", "_renderer", "_storage", "_coreTerminal", "HeaderParser", "maxEncodedBytes", "initialBytes", "Base64Decoder", "QoiDecoder", "data", "start", "end", "dataPos", "success", "seqType", "w", "CELL_SIZE_DEFAULT", "h", "scale", "report", "cond", "metrics", "UNSUPPORTED_TYPE", "imageType", "blob", "canvas", "ImageRenderer", "bm", "e", "cw", "ch", "width", "height", "rw", "rh", "wf", "hf", "f", "s", "total", "cdim", "import_Base64Decoder", "parseKittyCommand", "data", "cmd", "parts", "part", "eqIdx", "key", "value", "numValue", "DECODER_OK", "KittyGraphicsHandler", "_opts", "_renderer", "_kittyStorage", "_coreTerminal", "key", "pending", "data", "start", "end", "controlEnd", "i", "copyLength", "parseKittyCommand", "payloadStart", "pendingKey", "previousEncodedSize", "decoderToRelease", "Base64Decoder", "success", "cmd", "isMoreComing", "decodeError", "finalCmd", "decoder", "imageBytes", "result", "str", "bytes", "id", "image", "quiet", "format", "width", "height", "bytesPerPixel", "expectedBytes", "message", "placementId", "isOk", "pPart", "response", "bitmap", "cropX", "cropY", "cropW", "cropH", "maxCropW", "maxCropH", "finalCropW", "finalCropH", "cropped", "cw", "CELL_SIZE_DEFAULT", "ch", "imgCols", "imgRows", "w", "h", "buffer", "savedX", "savedY", "savedYbase", "layer", "scaled", "xOffset", "yOffset", "canvasW", "canvasH", "offsetCanvas", "ImageRenderer", "offsetCtx", "offsetBitmap", "zIndex", "scrolled", "e", "blob", "url", "img", "resolve", "reject", "canvas", "pixelCount", "src32", "dst32", "alignedPixels", "srcOffset", "dstOffset", "b0", "b1", "b2", "srcByte", "dstByte", "compressed", "ds", "writer", "chunks", "reader", "done", "value", "totalLength", "sum", "chunk", "offset", "_KittyImageStorage", "_storage", "storageId", "kittyId", "id", "imageData", "imageId", "oldStorageId", "image", "scrolling", "layer", "zIndex", "KittyImageStorage", "import_Colors", "import_Decoder", "MEM_PERMA_LIMIT", "DEFAULT_PALETTE", "SixelHandler", "_opts", "_storage", "_coreTerminal", "d", "params", "fillColor", "extractActiveBg", "data", "start", "end", "e", "success", "width", "height", "canvas", "ImageRenderer", "attr", "colors", "bg", "convertLe", "t", "color", "SixelImageStorage", "_storage", "_opts", "_renderer", "_terminal", "img", "height", "cellSize", "CELL_SIZE_DEFAULT", "rows", "i", "IIPImageStorage", "_storage", "img", "DEFAULT_OPTIONS", "MAX_SIXEL_PALETTE_SIZE", "ImageAddon", "opts", "Emitter", "DEFAULT_OPTIONS", "obj", "args", "terminal", "ImageRenderer", "ImageStorage", "windowOps", "params", "range", "metrics", "sixelStorage", "SixelImageStorage", "sixelHandler", "SixelHandler", "iipStorage", "IIPImageStorage", "iipHandler", "IIPHandler", "kittyStorage", "KittyImageStorage", "kittyHandler", "KittyGraphicsHandler", "handler", "limit", "value", "x", "y", "s", "i", "MAX_SIXEL_PALETTE_SIZE", "width", "height", "cellSize", "CELL_SIZE_DEFAULT"]
|
||
+ "sourcesContent": [null, "\"use strict\";\n/**\n * Copyright (c) 2022, 2026 Joerg Breitbart\n * @license MIT\n */\nObject.defineProperty(exports, \"__esModule\", { value: true });\nexports.InWasm = InWasm;\nlet z = (s) => {\n if (Uint8Array.fromBase64)\n return Uint8Array.fromBase64(s);\n if (typeof Buffer !== 'undefined')\n return Buffer.from(s, 'base64');\n const b = atob(s);\n const r = new Uint8Array(b.length);\n for (let i = 0; i < r.length; ++i)\n r[i] = b.charCodeAt(i);\n return r;\n};\nfunction InWasm(def) {\n if (def.d) {\n const { t, s, d } = def;\n let b;\n let m;\n const W = WebAssembly;\n if (t === 0 /* OutputType.INSTANCE */) {\n if (s)\n return (e) => new W.Instance(m || (m = new W.Module(b || (b = z(d)))), e);\n return (e) => m\n ? W.instantiate(m, e)\n : W.instantiate(b || (b = z(d)), e).then(r => (m = r.module) && r.instance);\n }\n if (t === 1 /* OutputType.MODULE */) {\n if (s)\n return () => m || (m = new W.Module(b || (b = z(d))));\n return () => m\n ? Promise.resolve(m)\n : W.compile(b || (b = z(d))).then(r => m = r);\n }\n if (s)\n return () => b || (b = z(d));\n return () => Promise.resolve(b || (b = z(d)));\n }\n if (typeof _wasmCtx === 'undefined')\n throw new Error('must run \"inwasm\"');\n _wasmCtx.add(def);\n}\n//# sourceMappingURL=index.js.map", "\"use strict\";\nObject.defineProperty(exports, \"__esModule\", { value: true });\n/**\n * Copyright (c) 2023, 2026 The xterm.js authors. All rights reserved.\n * @license MIT\n */\nconst inwasm_runtime_1 = require(\"inwasm-runtime\");\n/**\n * wasm base64 decoder.\n */\nconst wasmDecode = (0, inwasm_runtime_1.InWasm)(/*inwasm#828e69684093b2c6:rdef-start:\"decode\"*/{s:1,t:0,d:'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'}/*inwasm#828e69684093b2c6:rdef-end:\"decode\"*/);\n// SIMD version (speedup ~1.4x, not covered by tests yet)\n/*\nconst wasmDecode = InWasm({\n name: 'decode',\n type: OutputType.INSTANCE,\n mode: OutputMode.SYNC,\n srctype: 'Clang-C',\n imports: {\n env: { memory: new WebAssembly.Memory({ initial: 1 }) }\n },\n exports: {\n dec: () => 0,\n end: () => 0\n },\n compile: {\n switches: ['-msimd128', '-Wl,-z,stack-size=0', '-Wl,--stack-first']\n },\n code: `\n #include <wasm_simd128.h>\n typedef struct {\n unsigned int wp;\n unsigned int sp;\n unsigned int dp;\n unsigned int e_size;\n unsigned int dummy[4];\n unsigned char data[0];\n } State;\n\n unsigned int *D0 = (unsigned int *) ${P32.D0 * 4};\n unsigned int *D1 = (unsigned int *) ${P32.D1 * 4};\n unsigned int *D2 = (unsigned int *) ${P32.D2 * 4};\n unsigned int *D3 = (unsigned int *) ${P32.D3 * 4};\n State *state = (State *) ${P32.STATE * 4};\n\n #define packed_byte(x) wasm_i8x16_splat((char) x)\n #define packed_dword(x) wasm_i32x4_splat(x)\n #define masked(x, mask) wasm_v128_and(x, wasm_i32x4_splat(mask))\n\n __attribute__((noinline)) int dec() {\n unsigned int nsp = (state->wp - 1) & ~3;\n unsigned char *src = state->data + state->sp;\n unsigned char *end = state->data + nsp;\n unsigned char *dst = state->data + state->dp;\n unsigned int error = 0;\n\n v128_t err = wasm_i8x16_splat(0);\n unsigned char *end16 = state->data + (nsp & ~15);\n while (src < end16) {\n v128_t data = wasm_v128_load((v128_t *) src);\n\n // wasm-simd rewrite of http://0x80.pl/notesen/2016-01-17-sse-base64-decoding.html#vector-lookup-pshufb\n const v128_t higher_nibble = wasm_u32x4_shr(data, 4) & packed_byte(0x0f);\n const char linv = 1;\n const char hinv = 0;\n\n const v128_t lower_bound_LUT = wasm_i8x16_const(\n // order: 0 1 2 3 4 5 6 7 8 9 a b c d e f\n linv, linv, 0x2b, 0x30,\n 0x41, 0x50, 0x61, 0x70,\n linv, linv, linv, linv,\n linv, linv, linv, linv\n );\n const v128_t upper_bound_LUT = wasm_i8x16_const(\n // order: 0 1 2 3 4 5 6 7 8 9 a b c d e f\n hinv, hinv, 0x2b, 0x39,\n 0x4f, 0x5a, 0x6f, 0x7a,\n hinv, hinv, hinv, hinv,\n hinv, hinv, hinv, hinv\n );\n // the difference between the shift and lower bound\n const v128_t shift_LUT = wasm_i8x16_const(\n // order: 0 1 2 3 4 5 6 7 8 9 a b c d e f\n 0x00, 0x00, 0x3e - 0x2b, 0x34 - 0x30,\n 0x00 - 0x41, 0x0f - 0x50, 0x1a - 0x61, 0x29 - 0x70,\n 0x00, 0x00, 0x00, 0x00,\n 0x00, 0x00, 0x00, 0x00\n );\n\n const v128_t upper_bound = wasm_i8x16_swizzle(upper_bound_LUT, higher_nibble);\n const v128_t lower_bound = wasm_i8x16_swizzle(lower_bound_LUT, higher_nibble);\n\n const v128_t below = wasm_i8x16_lt(data, lower_bound);\n const v128_t above = wasm_i8x16_gt(data, upper_bound);\n const v128_t eq_2f = wasm_i8x16_eq(data, packed_byte(0x2f));\n\n // in_range = not (below or above) or eq_2f\n // outside = not in_range = below or above and not eq_2f (from deMorgan law)\n const v128_t outside = wasm_v128_andnot(eq_2f, above | below);\n err = wasm_v128_or(err, outside);\n\n const v128_t shift = wasm_i8x16_swizzle(shift_LUT, higher_nibble);\n const v128_t t0 = wasm_i8x16_add(data, shift);\n v128_t v = wasm_i8x16_add(t0, wasm_v128_and(eq_2f, packed_byte(-3)));\n\n // pack bytes\n const v128_t ca = masked(v, 0x003f003f);\n const v128_t db = masked(v, 0x3f003f00);\n const v128_t t00 = wasm_v128_or(wasm_u32x4_shr(db, 8), wasm_i32x4_shl(ca, 6));\n v128_t res = wasm_v128_or(wasm_u32x4_shr(t00, 16), wasm_i32x4_shl(t00, 12));\n res = wasm_i8x16_swizzle(res, wasm_i8x16_const(2, 1, 0, 6, 5, 4, 10, 9, 8, 14, 13, 12, 16, 16, 16, 16));\n\n wasm_v128_store((v128_t *) dst, res);\n dst += 12;\n src += 16;\n }\n //if (wasm_i8x16_bitmask(err) != 0) return -1;\n if (wasm_v128_any_true(err)) return -1;\n\n // operate on 4-byte blocks\n while (src < end) {\n error |= *((unsigned int *) dst) = D0[src[0]] | D1[src[1]] | D2[src[2]] | D3[src[3]];\n dst += 3;\n src += 4;\n }\n if (error >> 24) return -1;\n state->sp = nsp;\n state->dp = dst - state->data;\n return 0;\n }\n\n int end() {\n int rem = state->wp - state->sp;\n if (rem > 4 && dec()) return -1;\n rem = state->wp - state->sp;\n if (rem < 2) return -1;\n\n unsigned char *src = state->data + state->sp;\n if (rem == 4) {\n if (src[3] == 61) rem--;\n if (src[2] == 61) rem--;\n }\n unsigned int accu = D0[src[0]] | D1[src[1]];\n int dp = 1;\n if (rem > 2) {\n accu |= D2[src[2]];\n dp++;\n if (rem == 4) {\n accu |= D3[src[3]];\n dp++;\n }\n }\n if (accu >> 24) return -1;\n *((unsigned int *) (state->data + state->dp)) = accu;\n state->dp += dp;\n return 0;\n }\n `\n});\n*/\n// base64 map\nconst MAP = new Uint8Array('ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/'\n .split('')\n .map(el => el.charCodeAt(0)));\n// init decoder maps in LE order\nconst D = new Uint32Array(1024);\nD.fill(0xFF000000);\nfor (let i = 0; i < MAP.length; ++i)\n D[MAP[i]] = i << 2;\nfor (let i = 0; i < MAP.length; ++i)\n D[256 + MAP[i]] = i >> 4 | ((i << 4) & 0xFF) << 8;\nfor (let i = 0; i < MAP.length; ++i)\n D[512 + MAP[i]] = (i >> 2) << 8 | ((i << 6) & 0xFF) << 16;\nfor (let i = 0; i < MAP.length; ++i)\n D[768 + MAP[i]] = i << 16;\nconst EMPTY = new Uint8Array(0);\n/**\n * base64 stream decoder.\n *\n * Features / assumptions:\n * - lazy chunkwise decoding\n * - errors out on any non base64 chars (no support for NL formatted base64)\n * - decodes in wasm\n * - inplace decoding to save memory\n * - supports a keepSize for lazy memory release\n */\nclass Base64Decoder {\n /**\n * @param keepSize Keep the wasm instance below this limit when calling `release()`.\n * @param maxBytes Max allowed bytes to allocate.\n * @param initialBytes Initial bytes to allocate.\n */\n constructor(keepSize, maxBytes, initialBytes) {\n this._inst = null;\n this._ended = true;\n this._bytes = 0;\n this.keepSize = keepSize !== null && keepSize !== void 0 ? keepSize : 1048576 /* Bytes.KEEP */;\n this.maxBytes = maxBytes !== null && maxBytes !== void 0 ? maxBytes : 4294901760 /* Bytes.MAX */;\n this._bytes = initialBytes !== null && initialBytes !== void 0 ? initialBytes : 32768 /* Bytes.INITIAL */;\n if (this._bytes > this.maxBytes || this.maxBytes > 4294901760 /* Bytes.MAX */) {\n throw new Error('invalid byte settings');\n }\n }\n /**\n * Currently decoded bytes (borrowed).\n * Must be accessed before calling `release` or `init`.\n */\n get data8() {\n return this._inst ? this._d.subarray(0, this._m32[1282 /* P32.STATE_DP */]) : EMPTY;\n }\n /**\n * Release memory conditionally based on `keepSize`.\n * If memory gets released, also the wasm instance will be freed and recreated on next `init`,\n * otherwise the instance will be reused.\n */\n release() {\n if (!this._inst)\n return;\n if (this._bytes > this.keepSize) {\n this._inst = this._m32 = this._d = this._mem = null;\n }\n else {\n this._m32[1280 /* P32.STATE_WP */] = 0;\n this._m32[1281 /* P32.STATE_SP */] = 0;\n this._m32[1282 /* P32.STATE_DP */] = 0;\n }\n }\n /**\n * Initializes the decoder for new base64 data.\n * Must be called before doing any decoding attempts.\n * The method will either spawn a new wasm instance or grow\n * the needed memory of an existing instance.\n * @param maxBytes Max allowed bytes to allocate (overwrites ctor value).\n * @param initialBytes Initial bytes to allocate (overwrites ctor value).\n */\n init(maxBytes, initialBytes) {\n this.maxBytes = maxBytes !== null && maxBytes !== void 0 ? maxBytes : this.maxBytes;\n this._bytes = initialBytes !== null && initialBytes !== void 0 ? initialBytes : Math.min(this._bytes, this.maxBytes);\n if (this._bytes > this.maxBytes || this.maxBytes > 4294901760 /* Bytes.MAX */) {\n throw Error('invalid byte settings');\n }\n let m = this._m32;\n const bytes = this._bytes + 5152 /* Bytes._DATA_OFFSET */;\n if (!this._inst) {\n this._mem = new WebAssembly.Memory({ initial: Math.ceil(bytes / 65536) });\n this._inst = wasmDecode({ env: { memory: this._mem } });\n m = new Uint32Array(this._mem.buffer, 0);\n m.set(D, 256 /* P32.D0 */);\n this._d = new Uint8Array(this._mem.buffer, 5152 /* Bytes._DATA_OFFSET */);\n }\n else if (this._mem.buffer.byteLength < bytes) {\n this._mem.grow(Math.ceil((bytes - this._mem.buffer.byteLength) / 65536));\n m = new Uint32Array(this._mem.buffer, 0);\n this._d = new Uint8Array(this._mem.buffer, 5152 /* Bytes._DATA_OFFSET */);\n }\n m[1280 /* P32.STATE_WP */] = 0;\n m[1281 /* P32.STATE_SP */] = 0;\n m[1282 /* P32.STATE_DP */] = 0;\n this._m32 = m;\n this._ended = false;\n }\n /**\n * Realloc memory. Realloc only happens, if the requested\n * size doesn't fit in the current memory.\n * The new size will be capped by `maxBytes`.\n * @param requested Bytes to be stored.\n */\n _realloc(requested) {\n const needed = this._m32[1280 /* P32.STATE_WP */] + requested;\n if (this._bytes < needed) {\n if (needed > this.maxBytes) {\n return -3 /* DecodeStatus.SIZE_EXCEEDED */;\n }\n let newSize = this._bytes;\n while ((newSize *= 2) < needed) { }\n newSize = Math.min(newSize, this.maxBytes);\n if (newSize < needed) {\n return -3 /* DecodeStatus.SIZE_EXCEEDED */;\n }\n if (newSize + 5152 /* Bytes._DATA_OFFSET */ > this._mem.buffer.byteLength) {\n const addPages = Math.ceil((newSize + 5152 /* Bytes._DATA_OFFSET */ - this._mem.buffer.byteLength) / 65536);\n this._mem.grow(addPages);\n this._m32 = new Uint32Array(this._mem.buffer, 0);\n this._d = new Uint8Array(this._mem.buffer, 5152 /* Bytes._DATA_OFFSET */);\n }\n this._bytes = newSize;\n }\n return 0 /* DecodeStatus.OK */;\n }\n /**\n * Put bytes in `data` into the decoder.\n * Additionally decodes the payload, if it reached 2^17 bytes.\n * The return value indicates the type of issue.\n * @param data Bytes to be loaded.\n */\n put(data) {\n if (!this._inst || this._ended) {\n return -2 /* DecodeStatus.NOT_INITIALIZED */;\n }\n if (this._realloc(data.length)) {\n return -3 /* DecodeStatus.SIZE_EXCEEDED */;\n }\n const m = this._m32;\n this._d.set(data, m[1280 /* P32.STATE_WP */]);\n m[1280 /* P32.STATE_WP */] += data.length;\n // max chunk in input handler is 2^17, try to run in \"tandem mode\"\n return m[1280 /* P32.STATE_WP */] - m[1281 /* P32.STATE_SP */] >= 131072\n ? this._inst.exports.dec()\n : 0 /* DecodeStatus.OK */;\n }\n /**\n * End the current decoding.\n * Also decodes leftover payload from previous put calls.\n */\n end() {\n this._ended = true;\n return this._inst\n ? this._inst.exports.end()\n : -2 /* DecodeStatus.NOT_INITIALIZED */;\n }\n /**\n * Bytes loaded into the decoder.\n */\n get loadedBytes() {\n return this._inst\n ? this._m32[1280 /* P32.STATE_WP */]\n : 0;\n }\n /**\n * Free bytes to feed to the decoder.\n */\n get freeBytes() {\n return this._inst\n ? this.maxBytes - this._m32[1280 /* P32.STATE_WP */]\n : 0;\n }\n}\nexports.default = Base64Decoder;\n//# sourceMappingURL=Base64Decoder.wasm.js.map", "\"use strict\";\nObject.defineProperty(exports, \"__esModule\", { value: true });\n/**\n * Copyright (c) 2023 The xterm.js authors. All rights reserved.\n * @license MIT\n */\nconst inwasm_runtime_1 = require(\"inwasm-runtime\");\nconst wasmQoiDecode = (0, inwasm_runtime_1.InWasm)(/*inwasm#459f9e1bfb80b1a8:rdef-start:\"qoi_decode\"*/{s:1,t:0,d:'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'}/*inwasm#459f9e1bfb80b1a8:rdef-end:\"qoi_decode\"*/);\nclass QoiDecoder {\n constructor(keepSize) {\n this.keepSize = keepSize;\n this.width = 0;\n this.height = 0;\n }\n decode(d) {\n this.width = d[4] << 24 | d[5] << 16 | d[6] << 8 | d[7];\n this.height = d[8] << 24 | d[9] << 16 | d[10] << 8 | d[11];\n const pixels = this.width * this.height;\n const ib = pixels * 4;\n const dl = d.length;\n /**\n * byte/offset calculation:\n * To save some memory we dont reserve full memory for decoded + encoded,\n * but place encoded at the end of decoded plus 50% security distance\n * to avoid reads before writes positions:\n *\n * encoded < decoded (good compression)\n * enc ####################\n * dec #######################################\n * ^ ^\n * DST_P CHUNK_P\n *\n * encoded > decoded (degenerated compression, should not happen)\n * enc ##############################\n * dec ####################\n * ^ ^\n * DST_P CHUNK_P\n *\n * There is still a chance for overlapping r/w positions in case the compressed\n * data has very different pixel progression, yet the 50% security distance\n * should deal with that, as QOI will bloat data by 25% at max (RGB -> OP byte + RGB).\n * Since we always assume RGBA at decoding stage, the possible bloat reduces to 20% at max.\n */\n const bytes = Math.max(ib, dl) + (Math.min(ib, dl) >> 1) + 4096;\n if (!this._inst) {\n this._mem = new WebAssembly.Memory({ initial: Math.ceil(bytes / 65536) });\n this._inst = wasmQoiDecode({ env: { memory: this._mem } });\n }\n else if (this._mem.buffer.byteLength < bytes) {\n this._mem.grow(Math.ceil((bytes - this._mem.buffer.byteLength) / 65536));\n this._d = null;\n }\n if (!this._d) {\n this._d = new Uint8Array(this._mem.buffer);\n }\n // put src data at the end of memory, also align to 256\n const chunkP = (this._mem.buffer.byteLength - dl) & ~0xFF;\n this._d.set(d, chunkP);\n this._inst.exports.dec(chunkP, dl, pixels);\n return this._d.subarray(1024 /* P8.DST_P */, 1024 /* P8.DST_P */ + ib);\n }\n release() {\n if (!this._inst)\n return;\n if (this._mem.buffer.byteLength > this.keepSize) {\n this._inst = this._d = this._mem = null;\n }\n }\n}\nexports.default = QoiDecoder;\n//# sourceMappingURL=QoiDecoder.wasm.js.map", null, null, "/**\n * Copyright (c) 2024-2026 The xterm.js authors. All rights reserved.\n * @license MIT\n *\n * Minimal lifecycle utilities for xterm.js core.\n * Simplified from VS Code's lifecycle.ts - no tracking/leak detection.\n */\n\nexport interface IDisposable {\n dispose(): void;\n}\n\nexport function toDisposable(fn: () => void): IDisposable {\n return { dispose: fn };\n}\n\nexport function dispose<T extends IDisposable>(disposable: T): T;\nexport function dispose<T extends IDisposable>(disposable: T | undefined): T | undefined;\nexport function dispose<T extends IDisposable>(disposables: T[]): T[];\nexport function dispose<T extends IDisposable>(arg: T | T[] | undefined): T | T[] | undefined {\n if (!arg) {\n return arg;\n }\n if (Array.isArray(arg)) {\n for (const d of arg) {\n d.dispose();\n }\n return [];\n }\n arg.dispose();\n return arg;\n}\n\nexport function combinedDisposable(...disposables: IDisposable[]): IDisposable {\n return toDisposable(() => dispose(disposables));\n}\n\nexport class DisposableStore implements IDisposable {\n private readonly _disposables = new Set<IDisposable>();\n private _isDisposed = false;\n\n public get isDisposed(): boolean {\n return this._isDisposed;\n }\n\n public add<T extends IDisposable>(o: T): T {\n if (this._isDisposed) {\n o.dispose();\n } else {\n this._disposables.add(o);\n }\n return o;\n }\n\n public dispose(): void {\n if (this._isDisposed) {\n return;\n }\n this._isDisposed = true;\n for (const d of this._disposables) {\n d.dispose();\n }\n this._disposables.clear();\n }\n\n public clear(): void {\n for (const d of this._disposables) {\n d.dispose();\n }\n this._disposables.clear();\n }\n}\n\nexport abstract class Disposable implements IDisposable {\n public static readonly None: IDisposable = Object.freeze({ dispose() { } });\n\n protected readonly _store = new DisposableStore();\n\n public dispose(): void {\n this._store.dispose();\n }\n\n protected _register<T extends IDisposable>(o: T): T {\n return this._store.add(o);\n }\n}\n\nexport class MutableDisposable<T extends IDisposable> implements IDisposable {\n private _value: T | undefined;\n private _isDisposed = false;\n\n public get value(): T | undefined {\n return this._isDisposed ? undefined : this._value;\n }\n\n public set value(value: T | undefined) {\n if (this._isDisposed || value === this._value) {\n return;\n }\n this._value?.dispose();\n this._value = value;\n }\n\n public clear(): void {\n this.value = undefined;\n }\n\n public dispose(): void {\n this._isDisposed = true;\n this._value?.dispose();\n this._value = undefined;\n }\n}\n", "/**\n * Copyright (c) 2024-2026 The xterm.js authors. All rights reserved.\n * @license MIT\n *\n * Minimal event utilities for xterm.js core.\n * Simplified from VS Code's event.ts - no leak detection/profiling.\n */\n\nimport { IDisposable, DisposableStore, toDisposable } from './Lifecycle';\n\nexport interface IEvent<T> {\n (listener: (e: T) => any, thisArgs?: any, disposables?: IDisposable[] | DisposableStore): IDisposable;\n}\n\nexport class Emitter<T> {\n private _listeners: { fn: (e: T) => any, thisArgs: any }[] = [];\n private _disposed = false;\n private _event: IEvent<T> | undefined;\n\n public get event(): IEvent<T> {\n if (this._event) {\n return this._event;\n }\n this._event = (listener: (e: T) => any, thisArgs?: any, disposables?: IDisposable[] | DisposableStore) => {\n if (this._disposed) {\n return toDisposable(() => {});\n }\n\n const entry = { fn: listener, thisArgs };\n this._listeners = this._listeners.slice();\n this._listeners.push(entry);\n\n const result = toDisposable(() => {\n const idx = this._listeners.indexOf(entry);\n if (idx !== -1) {\n this._listeners = this._listeners.slice();\n this._listeners.splice(idx, 1);\n }\n });\n\n if (disposables) {\n if (Array.isArray(disposables)) {\n disposables.push(result);\n } else {\n disposables.add(result);\n }\n }\n\n return result;\n };\n return this._event;\n }\n\n public fire(event: T): void {\n if (this._disposed || !this._listeners.length) {\n return;\n }\n if (this._listeners.length === 1) {\n this._listeners[0].fn.call(this._listeners[0].thisArgs, event);\n return;\n }\n const listeners = this._listeners;\n for (let i = 0, len = listeners.length; i < len; ++i) {\n listeners[i].fn.call(listeners[i].thisArgs, event);\n }\n }\n\n public dispose(): void {\n if (this._disposed) {\n return;\n }\n this._disposed = true;\n this._listeners.length = 0;\n }\n}\n\nexport namespace EventUtils {\n export function forward<T>(from: IEvent<T>, to: Emitter<T>): IDisposable {\n return from(e => to.fire(e));\n }\n\n export function map<I, O>(event: IEvent<I>, map: (i: I) => O): IEvent<O> {\n return (listener: (e: O) => any, thisArgs?: any, disposables?: IDisposable[] | DisposableStore) => {\n return event(i => listener.call(thisArgs, map(i)), undefined, disposables);\n };\n }\n\n export function any<T>(...events: IEvent<T>[]): IEvent<T>;\n export function any(...events: IEvent<any>[]): IEvent<void>;\n export function any<T>(...events: IEvent<T>[]): IEvent<T> {\n return (listener: (e: T) => any, thisArgs?: any, disposables?: IDisposable[] | DisposableStore) => {\n const store = new DisposableStore();\n for (const event of events) {\n store.add(event(e => listener.call(thisArgs, e)));\n }\n if (disposables) {\n if (Array.isArray(disposables)) {\n disposables.push(store);\n } else {\n disposables.add(store);\n }\n }\n return store;\n };\n }\n\n export function runAndSubscribe<T>(event: IEvent<T>, handler: (e: T) => void, initial: T): IDisposable;\n export function runAndSubscribe<T>(event: IEvent<T>, handler: (e: T | undefined) => void): IDisposable;\n export function runAndSubscribe<T>(event: IEvent<T>, handler: (e: T | undefined) => void, initial?: T): IDisposable {\n handler(initial);\n return event(e => handler(e));\n }\n}\n", "/**\n * Copyright (c) 2020 The xterm.js authors. All rights reserved.\n * @license MIT\n */\n\nimport { toRGBA8888 } from 'sixel/lib/Colors';\nimport { IDisposable } from '@xterm/xterm';\nimport { ICellSize, ImageLayer, ITerminalExt, IImageSpec, IRenderDimensions, IRenderService } from './Types';\nimport { Disposable, MutableDisposable, toDisposable } from 'common/Lifecycle';\n\nconst enum Constants {\n PLACEHOLDER_LENGTH = 4096,\n PLACEHOLDER_HEIGHT = 24\n}\n\n/**\n * ImageRenderer - terminal frontend extension:\n * - provide primitives for canvas, ImageData, Bitmap (static)\n * - add canvas layer to DOM (browser only for now)\n * - draw image tiles onRender\n */\nexport class ImageRenderer extends Disposable implements IDisposable {\n /** @deprecated Kept for backward compat \u2014 points to top layer canvas. */\n public get canvas(): HTMLCanvasElement | undefined { return this._layers.get('top')?.canvas; }\n private _layers = new Map<ImageLayer, CanvasRenderingContext2D>();\n private _placeholder: HTMLCanvasElement | undefined;\n private _placeholderBitmap: ImageBitmap | undefined;\n private _optionsRefresh = this._register(new MutableDisposable());\n private _oldOpen: ((parent: HTMLElement) => void) | undefined;\n private _renderService: IRenderService | undefined;\n private _oldSetRenderer: ((renderer: any) => void) | undefined;\n\n // drawing primitive - canvas\n public static createCanvas(localDocument: Document | undefined, width: number, height: number): HTMLCanvasElement {\n /**\n * NOTE: We normally dont care, from which document the canvas\n * gets created, so we can fall back to global document,\n * if the terminal has no document associated yet.\n * This way early image loads before calling .open keep working\n * (still discouraged though, as the metrics will be screwed up).\n * Only the DOM output canvas should be on the terminal's document,\n * which gets explicitly checked in `insertLayerToDom`.\n */\n const canvas = (localDocument ?? document).createElement('canvas');\n canvas.width = width | 0;\n canvas.height = height | 0;\n return canvas;\n }\n\n // drawing primitive - ImageData with optional buffer\n public static createImageData(ctx: CanvasRenderingContext2D, width: number, height: number, buffer?: ArrayBuffer): ImageData {\n if (typeof ImageData !== 'function') {\n const imgData = ctx.createImageData(width, height);\n if (buffer) {\n imgData.data.set(new Uint8ClampedArray(buffer, 0, width * height * 4));\n }\n return imgData;\n }\n return buffer\n ? new ImageData(new Uint8ClampedArray(buffer, 0, width * height * 4), width, height)\n : new ImageData(width, height);\n }\n\n // drawing primitive - ImageBitmap\n public static createImageBitmap(img: ImageBitmapSource): Promise<ImageBitmap | undefined> {\n if (typeof createImageBitmap !== 'function') {\n return Promise.resolve(undefined);\n }\n return createImageBitmap(img);\n }\n\n\n constructor(private _terminal: ITerminalExt) {\n super();\n this._oldOpen = this._terminal._core.open;\n this._terminal._core.open = (parent: HTMLElement): void => {\n this._oldOpen?.call(this._terminal._core, parent);\n this._open();\n };\n if (this._terminal._core.screenElement) {\n this._open();\n }\n // hack to spot fontSize changes\n this._optionsRefresh.value = this._terminal._core.optionsService.onOptionChange(option => {\n if (option === 'fontSize') {\n this.rescaleCanvas();\n this._renderService?.refreshRows(0, this._terminal.rows);\n }\n });\n this._register(toDisposable(() => {\n this.removeLayerFromDom();\n this.removeLayerFromDom('bottom');\n if (this._terminal._core && this._oldOpen) {\n this._terminal._core.open = this._oldOpen;\n this._oldOpen = undefined;\n }\n if (this._renderService && this._oldSetRenderer) {\n this._renderService.setRenderer = this._oldSetRenderer;\n this._oldSetRenderer = undefined;\n }\n this._renderService = undefined;\n this._layers.clear();\n this._placeholderBitmap?.close();\n this._placeholderBitmap = undefined;\n this._placeholder = undefined;\n }));\n }\n\n /**\n * Enable the placeholder.\n */\n public showPlaceholder(value: boolean): void {\n if (value) {\n if (!this._placeholder && this.cellSize.height !== -1) {\n this._createPlaceHolder(Math.max(this.cellSize.height + 1, Constants.PLACEHOLDER_HEIGHT));\n }\n } else {\n this._placeholderBitmap?.close();\n this._placeholderBitmap = undefined;\n this._placeholder = undefined;\n }\n this._renderService?.refreshRows(0, this._terminal.rows);\n }\n\n /**\n * Dimensions of the terminal.\n * Forwarded from internal render service.\n */\n public get dimensions(): IRenderDimensions | undefined {\n return this._terminal.dimensions;\n }\n\n /**\n * Current cell size (float).\n */\n public get cellSize(): ICellSize {\n return {\n width: this.dimensions?.css.cell.width || -1,\n height: this.dimensions?.css.cell.height || -1\n };\n }\n\n /**\n * Clear a region of the image layer canvas.\n */\n public clearLines(start: number, end: number, layer?: ImageLayer): void {\n const y = start * (this.dimensions?.css.cell.height || 0);\n const w = this.dimensions?.css.canvas.width || 0;\n const h = (end + 1 - start) * (this.dimensions?.css.cell.height || 0);\n if (!layer || layer === 'top') {\n this._layers.get('top')?.clearRect(0, y, w, h);\n }\n if (!layer || layer === 'bottom') {\n this._layers.get('bottom')?.clearRect(0, y, w, h);\n }\n }\n\n /**\n * Clear whole image canvas.\n */\n public clearAll(layer?: ImageLayer): void {\n if (!layer || layer === 'top') {\n const ctx = this._layers.get('top');\n ctx?.clearRect(0, 0, ctx.canvas.width, ctx.canvas.height);\n }\n if (!layer || layer === 'bottom') {\n const ctx = this._layers.get('bottom');\n ctx?.clearRect(0, 0, ctx.canvas.width, ctx.canvas.height);\n }\n }\n\n /**\n * Draw neighboring tiles on the image layer canvas.\n */\n public draw(imgSpec: IImageSpec, tileId: number, col: number, row: number, count: number = 1): void {\n const ctx = this._layers.get(imgSpec.layer);\n if (!ctx) {\n return;\n }\n const { width, height } = this.cellSize;\n\n // Don't try to draw anything, if we cannot get valid renderer metrics.\n if (width === -1 || height === -1) {\n return;\n }\n\n this._rescaleImage(imgSpec, width, height);\n const img = imgSpec.actual!;\n const { width: sourceWidth, height: sourceHeight } = imgSpec.actualCellSize;\n const cols = Math.ceil(img.width / sourceWidth);\n\n const sx = (tileId % cols) * sourceWidth;\n const sy = Math.floor(tileId / cols) * sourceHeight;\n const dx = col * width;\n const dy = row * height;\n\n // safari bug: never access image source out of bounds\n const finalWidth = count * sourceWidth + sx > img.width ? img.width - sx : count * sourceWidth;\n const finalHeight = sy + sourceHeight > img.height ? img.height - sy : sourceHeight;\n\n // Floor all pixel offsets to get stable tile mapping without any overflows.\n // Note: For not pixel perfect aligned cells like in the DOM renderer\n // this will move a tile slightly to the top/left (subpixel range, thus ignore it).\n // FIX #34: avoid striping on displays with pixelDeviceRatio != 1 by ceiling height and width\n ctx.drawImage(\n img,\n Math.floor(sx), Math.floor(sy), Math.ceil(finalWidth), Math.ceil(finalHeight),\n Math.floor(dx), Math.floor(dy), Math.ceil(finalWidth * width / sourceWidth), Math.ceil(finalHeight * height / sourceHeight)\n );\n }\n\n /**\n * Extract a single tile from an image.\n */\n public extractTile(imgSpec: IImageSpec, tileId: number): HTMLCanvasElement | undefined {\n const { width, height } = this.cellSize;\n // Don't try to draw anything, if we cannot get valid renderer metrics.\n if (width === -1 || height === -1) {\n return;\n }\n this._rescaleImage(imgSpec, width, height);\n const img = imgSpec.actual!;\n const { width: sourceWidth, height: sourceHeight } = imgSpec.actualCellSize;\n const cols = Math.ceil(img.width / sourceWidth);\n const sx = (tileId % cols) * sourceWidth;\n const sy = Math.floor(tileId / cols) * sourceHeight;\n const finalWidth = sourceWidth + sx > img.width ? img.width - sx : sourceWidth;\n const finalHeight = sy + sourceHeight > img.height ? img.height - sy : sourceHeight;\n\n const canvas = ImageRenderer.createCanvas(this.document, Math.ceil(finalWidth * width / sourceWidth), Math.ceil(finalHeight * height / sourceHeight));\n const ctx = canvas.getContext('2d');\n if (ctx) {\n ctx.drawImage(\n img,\n Math.floor(sx), Math.floor(sy), Math.floor(finalWidth), Math.floor(finalHeight),\n 0, 0, canvas.width, canvas.height\n );\n return canvas;\n }\n }\n\n /**\n * Draw a line with placeholder on the image layer canvas.\n */\n public drawPlaceholder(col: number, row: number, count: number = 1): void {\n const ctx = this._layers.get('top');\n if (ctx) {\n const { width, height } = this.cellSize;\n\n // Don't try to draw anything, if we cannot get valid renderer metrics.\n if (width === -1 || height === -1) {\n return;\n }\n\n if (!this._placeholder) {\n this._createPlaceHolder(Math.max(height + 1, Constants.PLACEHOLDER_HEIGHT));\n } else if (height >= this._placeholder!.height) {\n this._createPlaceHolder(height + 1);\n }\n if (!this._placeholder) return;\n ctx.drawImage(\n this._placeholderBitmap ?? this._placeholder!,\n col * width,\n (row * height) % 2 ? 0 : 1, // needs %2 offset correction\n width * count,\n height,\n col * width,\n row * height,\n width * count,\n height\n );\n }\n }\n\n /**\n * Rescale image layer canvas if needed.\n * Checked once from `ImageStorage.render`.\n */\n public rescaleCanvas(): void {\n const w = this.dimensions?.css.canvas.width || 0;\n const h = this.dimensions?.css.canvas.height || 0;\n for (const ctx of this._layers.values()) {\n if (ctx.canvas.width !== w || ctx.canvas.height !== h) {\n ctx.canvas.width = w;\n ctx.canvas.height = h;\n }\n }\n }\n\n /**\n * Rescale image in storage if needed.\n */\n private _rescaleImage(spec: IImageSpec, currentWidth: number, currentHeight: number): void {\n if (currentWidth === spec.actualCellSize.width && currentHeight === spec.actualCellSize.height) {\n return;\n }\n const { width: originalWidth, height: originalHeight } = spec.origCellSize;\n if (currentWidth === originalWidth && currentHeight === originalHeight) {\n spec.actual = spec.orig;\n spec.actualCellSize.width = originalWidth;\n spec.actualCellSize.height = originalHeight;\n return;\n }\n const scaledWidth = Math.ceil(spec.orig!.width * currentWidth / originalWidth);\n const scaledHeight = Math.ceil(spec.orig!.height * currentHeight / originalHeight);\n // Upscale visible tiles directly; a full zoomed copy can dwarf the image budget.\n if (scaledWidth * scaledHeight > spec.orig!.width * spec.orig!.height) {\n spec.actual = spec.orig;\n spec.actualCellSize.width = originalWidth;\n spec.actualCellSize.height = originalHeight;\n return;\n }\n const canvas = ImageRenderer.createCanvas(this.document, scaledWidth, scaledHeight);\n const ctx = canvas.getContext('2d');\n if (ctx) {\n ctx.drawImage(spec.orig!, 0, 0, canvas.width, canvas.height);\n spec.actual = canvas;\n spec.actualCellSize.width = currentWidth;\n spec.actualCellSize.height = currentHeight;\n }\n }\n\n /**\n * Lazy init for the renderer.\n */\n private _open(): void {\n this._renderService = this._terminal._core._renderService;\n this._oldSetRenderer = this._renderService.setRenderer.bind(this._renderService);\n this._renderService.setRenderer = (renderer: any) => {\n for (const key of [...this._layers.keys()]) {\n this.removeLayerFromDom(key);\n }\n this._oldSetRenderer?.call(this._renderService, renderer);\n };\n }\n\n public insertLayerToDom(layer: ImageLayer = 'top'): void {\n // make sure that the terminal is attached to a document and to DOM\n if (!this.document || !this._terminal._core.screenElement) {\n console.warn('image addon: cannot insert output canvas to DOM, missing document or screenElement');\n return;\n }\n if (this._layers.has(layer)) {\n return;\n }\n const canvas = ImageRenderer.createCanvas(\n this.document, this.dimensions?.css.canvas.width || 0,\n this.dimensions?.css.canvas.height || 0\n );\n canvas.classList.add(`xterm-image-layer-${layer}`);\n const screenElement = this._terminal._core.screenElement;\n // Use isolation to create a stacking context without overriding z-index,\n // which would conflict with integrators (e.g. VS Code) that set their\n // own z-index on the screen element.\n screenElement.style.isolation = 'isolate';\n if (layer === 'bottom') {\n // Use z-index:-1 so it paints behind non-positioned text elements.\n // The screen element needs to be a stacking context (via isolation)\n // to contain the negative z-index, otherwise it would go behind the\n // entire terminal.\n canvas.style.zIndex = '-1';\n screenElement.insertBefore(canvas, screenElement.firstChild);\n } else {\n // Explicit z-index ensures the image canvas reliably stacks above\n // the text layer (DOM renderer rows). z-index: 0 is below the\n // selection overlay (z-index: 1).\n canvas.style.zIndex = '0';\n screenElement.appendChild(canvas);\n }\n const ctx = canvas.getContext('2d', { alpha: true });\n if (!ctx) {\n canvas.remove();\n return;\n }\n this._layers.set(layer, ctx);\n this.clearAll(layer);\n }\n\n public removeLayerFromDom(layer: ImageLayer = 'top'): void {\n const ctx = this._layers.get(layer);\n if (ctx) {\n ctx.canvas.remove();\n this._layers.delete(layer);\n }\n }\n\n public hasLayer(layer: ImageLayer): boolean {\n return this._layers.has(layer);\n }\n\n private _createPlaceHolder(height: number = Constants.PLACEHOLDER_HEIGHT): void {\n this._placeholderBitmap?.close();\n this._placeholderBitmap = undefined;\n\n // create blueprint to fill placeholder with\n const bWidth = 32; // must be 2^n\n const blueprint = ImageRenderer.createCanvas(this.document, bWidth, height);\n const ctx = blueprint.getContext('2d', { alpha: false });\n if (!ctx) return;\n const imgData = ImageRenderer.createImageData(ctx, bWidth, height);\n const d32 = new Uint32Array(imgData.data.buffer);\n const black = toRGBA8888(0, 0, 0);\n const white = toRGBA8888(255, 255, 255);\n d32.fill(black);\n for (let y = 0; y < height; ++y) {\n const shift = y % 2;\n const offset = y * bWidth;\n for (let x = 0; x < bWidth; x += 2) {\n d32[offset + x + shift] = white;\n }\n }\n ctx.putImageData(imgData, 0, 0);\n\n // create placeholder line, width aligned to blueprint width\n const width = (screen.width + bWidth - 1) & ~(bWidth - 1) || Constants.PLACEHOLDER_LENGTH;\n this._placeholder = ImageRenderer.createCanvas(this.document, width, height);\n const ctx2 = this._placeholder.getContext('2d', { alpha: false });\n if (!ctx2) {\n this._placeholder = undefined;\n return;\n }\n for (let i = 0; i < width; i += bWidth) {\n ctx2.drawImage(blueprint, i, 0);\n }\n const placeholder = this._placeholder;\n ImageRenderer.createImageBitmap(placeholder).then(bitmap => {\n if (this._placeholder !== placeholder) bitmap?.close();\n else this._placeholderBitmap = bitmap;\n }).catch(() => {});\n }\n\n public get document(): Document | undefined {\n return this._terminal._core._coreBrowserService?.window.document;\n }\n}\n", "/**\n * Copyright (c) 2020 The xterm.js authors. All rights reserved.\n * @license MIT\n */\n\nimport { IDisposable } from '@xterm/xterm';\nimport { ImageRenderer } from './ImageRenderer';\nimport {\n ITerminalExt, IExtendedAttrsImage, IImageAddonOptions, IImageSpec,\n IBufferLineExt, BgFlags, Cell, Content, ICellSize, ExtFlags, Attributes,\n UnderlineStyle, IAddImageOpts\n} from './Types';\n\n\n// fallback default cell size\nexport const CELL_SIZE_DEFAULT: ICellSize = {\n width: 7,\n height: 14\n};\n\n/**\n * Extend extended attribute to also hold image tile information.\n *\n * Object definition is copied from base repo to fully mimick its behavior.\n * Image data is added as additional public properties `imageId` and `tileId`.\n */\nclass ExtendedAttrsImage implements IExtendedAttrsImage {\n private _ext: number = 0;\n public get ext(): number {\n if (this._urlId) {\n return (\n (this._ext & ~ExtFlags.UNDERLINE_STYLE) |\n (this.underlineStyle << 26)\n );\n }\n return this._ext;\n }\n public set ext(value: number) { this._ext = value; }\n\n public get underlineStyle(): UnderlineStyle {\n // Always return the URL style if it has one\n if (this._urlId) {\n return UnderlineStyle.DASHED;\n }\n return (this._ext & ExtFlags.UNDERLINE_STYLE) >> 26;\n }\n public set underlineStyle(value: UnderlineStyle) {\n this._ext &= ~ExtFlags.UNDERLINE_STYLE;\n this._ext |= (value << 26) & ExtFlags.UNDERLINE_STYLE;\n }\n\n public get underlineColor(): number {\n return this._ext & (Attributes.CM_MASK | Attributes.RGB_MASK);\n }\n public set underlineColor(value: number) {\n this._ext &= ~(Attributes.CM_MASK | Attributes.RGB_MASK);\n this._ext |= value & (Attributes.CM_MASK | Attributes.RGB_MASK);\n }\n\n public get underlineVariantOffset(): number {\n const val = (this._ext & ExtFlags.VARIANT_OFFSET) >> 29;\n if (val < 0) {\n return val ^ 0xFFFFFFF8;\n }\n return val;\n }\n public set underlineVariantOffset(value: number) {\n this._ext &= ~ExtFlags.VARIANT_OFFSET;\n this._ext |= (value << 29) & ExtFlags.VARIANT_OFFSET;\n }\n\n private _urlId: number = 0;\n public get urlId(): number {\n return this._urlId;\n }\n public set urlId(value: number) {\n this._urlId = value;\n }\n\n constructor(\n ext: number = 0,\n urlId: number = 0,\n public imageId = -1,\n public tileId = -1\n ) {\n this._ext = ext;\n this._urlId = urlId;\n }\n\n public clone(): IExtendedAttrsImage {\n /**\n * Technically we dont need a clone variant of ExtendedAttrsImage,\n * as we never clone a cell holding image data.\n * Note: Clone is only meant to be used by the InputHandler for\n * sticky attributes, which is never the case for image data.\n * We still provide a proper clone method to reflect the full ext attr\n * state in case there are future use cases for clone.\n */\n return new ExtendedAttrsImage(this._ext, this._urlId, this.imageId, this.tileId);\n }\n\n public isEmpty(): boolean {\n return this.underlineStyle === UnderlineStyle.NONE && this._urlId === 0 && this.imageId === -1;\n }\n}\nconst EMPTY_ATTRS = new ExtendedAttrsImage();\n\n\n/**\n * ImageStorage - extension of CoreTerminal:\n * - hold image data\n * - write/read image data to/from buffer\n *\n * TODO: image composition for overwrites\n */\nexport class ImageStorage implements IDisposable {\n // storage\n private _images: Map<number, IImageSpec> = new Map();\n // last used id\n private _lastId = 0;\n // last evicted id\n private _lowestId = 0;\n // whether a full clear happened before\n private _fullyCleared = false;\n // whether render should do a full clear\n private _needsFullClear = false;\n // hard limit of stored pixels (fallback limit of 10 MB)\n private _pixelLimit: number = 2500000;\n\n private _viewportMetrics: { cols: number, rows: number };\n public onImageAdded: (() => void) | undefined;\n public onImageDeleted: ((storageId: number) => void) | undefined;\n\n constructor(\n private _terminal: ITerminalExt,\n private _renderer: ImageRenderer,\n private _opts: IImageAddonOptions\n ) {\n try {\n this.setLimit(this._opts.storageLimit);\n } catch (e: unknown) {\n if (e instanceof Error) {\n console.error(e.message);\n }\n console.warn(`storageLimit is set to ${this.getLimit()} MB`);\n }\n this._viewportMetrics = {\n cols: this._terminal.cols,\n rows: this._terminal.rows\n };\n }\n\n public dispose(): void {\n this.reset();\n }\n\n public reset(): void {\n for (const spec of this._images.values()) {\n spec.marker?.dispose();\n }\n // NOTE: marker.dispose above already calls ImageBitmap.close\n // therefore we can just wipe the map here\n this._images.clear();\n this._renderer.clearAll();\n }\n\n public getLimit(): number {\n return this._pixelLimit * 4 / 1000000;\n }\n\n public setLimit(value: number): void {\n if (value < 0.5 || value > 1000) {\n throw RangeError('invalid storageLimit, should be at least 0.5 MB and not exceed 1G');\n }\n this._pixelLimit = (value / 4 * 1000000) >>> 0;\n this._evictOldest(0);\n }\n\n public getUsage(): number {\n return this._getStoredPixels() * 4 / 1000000;\n }\n\n private _getStoredPixels(): number {\n let storedPixels = 0;\n for (const spec of this._images.values()) {\n if (spec.orig) {\n storedPixels += spec.orig.width * spec.orig.height;\n if (spec.actual && spec.actual !== spec.orig) {\n storedPixels += spec.actual.width * spec.actual.height;\n }\n }\n }\n return storedPixels;\n }\n\n private _delImg(id: number): void {\n const spec = this._images.get(id);\n if (!spec) return;\n this._images.delete(id);\n // FIXME: really ugly workaround to get bitmaps deallocated :(\n if (window.ImageBitmap && spec.orig instanceof ImageBitmap) {\n spec.orig.close();\n }\n this.onImageDeleted?.(id);\n }\n\n /**\n * Wipe canvas and images on alternate buffer.\n */\n public wipeAlternate(): void {\n // remove all alternate tagged images\n const zero = [];\n for (const [id, spec] of this._images.entries()) {\n if (spec.bufferType === 'alternate') {\n spec.marker?.dispose();\n zero.push(id);\n }\n }\n for (const id of zero) {\n this._delImg(id);\n }\n // mark canvas to be wiped on next render\n this._needsFullClear = true;\n this._fullyCleared = false;\n }\n\n /**\n * Delete an image by its internal storage ID.\n * Used by protocols that support explicit deletion (e.g. Kitty a=d).\n */\n public deleteImage(id: number): void {\n const spec = this._images.get(id);\n if (spec) {\n spec.marker?.dispose();\n this._delImg(id);\n }\n }\n\n /**\n * Method to add an image to the storage.\n * @param img - The image to add (canvas or bitmap).\n * @param opts - Options for addImage:\n * - scrolling: When true, cursor advances with the image.\n * When false, image is placed at ORIGIN and cursor does not move.\n * - layer: Which canvas layer to render on ('top' or 'bottom').\n * - zIndex: Z-index for image layering within the same layer.\n * - cursorPos: 'vt340' for bottom-left, 'iip' for bottom.right.\n * @returns The internal image ID assigned to the stored image.\n */\n public addImage(img: HTMLCanvasElement | ImageBitmap, opts: IAddImageOpts): number {\n // never allow storage to exceed memory limit\n this._evictOldest(img.width * img.height);\n\n // calc rows x cols needed to display the image\n let cellSize = this._renderer.cellSize;\n if (cellSize.width === -1 || cellSize.height === -1) {\n cellSize = CELL_SIZE_DEFAULT;\n }\n const cols = Math.ceil(img.width / cellSize.width);\n const rows = Math.ceil(img.height / cellSize.height);\n\n const imageId = ++this._lastId;\n\n const buffer = this._terminal._core.buffer;\n const termCols = this._terminal.cols;\n const termRows = this._terminal.rows;\n const originX = buffer.x;\n const originY = buffer.y;\n let offset = originX;\n let tileCount = 0;\n\n if (!opts.scrolling) {\n buffer.x = 0;\n buffer.y = 0;\n offset = 0;\n }\n\n this._terminal._core._inputHandler._dirtyRowTracker.markDirty(buffer.y);\n for (let row = 0; row < rows; ++row) {\n const line = buffer.lines.get(buffer.y + buffer.ybase);\n for (let col = 0; col < cols; ++col) {\n if (offset + col >= termCols) break;\n this._writeToCell(line as IBufferLineExt, offset + col, imageId, row * cols + col);\n tileCount++;\n }\n if (opts.scrolling) {\n if (row < rows - 1) this._terminal._core._inputHandler.lineFeed();\n } else {\n if (++buffer.y >= termRows) break;\n }\n buffer.x = offset;\n }\n this._terminal._core._inputHandler._dirtyRowTracker.markDirty(buffer.y);\n\n // cursor positioning modes\n if (opts.scrolling) {\n if (opts.cursorPos === 'iip') {\n buffer.x = Math.min(offset + cols, termCols);\n } else {\n buffer.x = offset;\n }\n } else {\n buffer.x = originX;\n buffer.y = originY;\n }\n\n // deleted images with zero tile count\n const zero = [];\n for (const [id, spec] of this._images.entries()) {\n if (spec.tileCount < 1) {\n spec.marker?.dispose();\n zero.push(id);\n }\n }\n for (const id of zero) {\n this._delImg(id);\n }\n\n // eviction marker:\n // delete the image when the marker gets disposed\n const endMarker = this._terminal.registerMarker(0);\n endMarker?.onDispose(() => {\n const spec = this._images.get(imageId);\n if (spec) {\n this._delImg(imageId);\n }\n });\n\n // since markers do not work on alternate for some reason,\n // we evict images here manually\n if (this._terminal.buffer.active.type === 'alternate') {\n this._evictOnAlternate();\n }\n\n // create storage entry\n const imgSpec: IImageSpec = {\n orig: img,\n origCellSize: cellSize,\n actual: img,\n actualCellSize: { ...cellSize }, // clone needed, since later modified\n marker: endMarker || undefined,\n tileCount,\n bufferType: this._terminal.buffer.active.type,\n layer: opts.layer,\n zIndex: opts.zIndex\n };\n\n // finally add the image\n this._images.set(imageId, imgSpec);\n this.onImageAdded?.();\n return imageId;\n }\n\n\n /**\n * Render method. Collects buffer information and triggers\n * canvas updates.\n */\n // TODO: Should we move this to the ImageRenderer?\n public render(range: { start: number, end: number }): void {\n // Determine which layers have images\n let hasTopImages = false;\n let hasBottomImages = false;\n for (const spec of this._images.values()) {\n if (spec.layer === 'bottom') {\n hasBottomImages = true;\n } else {\n hasTopImages = true;\n }\n if (hasTopImages && hasBottomImages) break;\n }\n\n // Lazily insert layers that are needed\n if (hasTopImages && !this._renderer.hasLayer('top')) {\n this._renderer.insertLayerToDom('top');\n if (!this._renderer.hasLayer('top')) return;\n }\n if (hasBottomImages && !this._renderer.hasLayer('bottom')) {\n this._renderer.insertLayerToDom('bottom');\n }\n\n // rescale if needed\n this._renderer.rescaleCanvas();\n\n // exit early if we dont have any images to test for\n if (!this._images.size) {\n if (!this._fullyCleared) {\n this._renderer.clearAll();\n this._fullyCleared = true;\n this._needsFullClear = false;\n }\n if (this._renderer.hasLayer('top')) {\n this._renderer.removeLayerFromDom('top');\n }\n if (this._renderer.hasLayer('bottom')) {\n this._renderer.removeLayerFromDom('bottom');\n }\n return;\n }\n\n // Remove layers no longer needed\n if (!hasTopImages && this._renderer.hasLayer('top')) {\n this._renderer.clearAll('top');\n this._renderer.removeLayerFromDom('top');\n }\n if (!hasBottomImages && this._renderer.hasLayer('bottom')) {\n this._renderer.clearAll('bottom');\n this._renderer.removeLayerFromDom('bottom');\n }\n\n // buffer switches force a full clear\n if (this._needsFullClear) {\n this._renderer.clearAll();\n this._fullyCleared = true;\n this._needsFullClear = false;\n }\n\n const { start, end } = range;\n const buffer = this._terminal._core.buffer;\n const cols = this._terminal._core.cols;\n\n // clear drawing area\n this._renderer.clearLines(start, end);\n\n // Collect draw calls so we can sort by z-index (lower z drawn first).\n const drawCalls: { imgSpec: IImageSpec, tileId: number, col: number, row: number, count: number }[] = [];\n const placeholderCalls: { col: number, row: number, count: number }[] = [];\n\n // walk all cells in viewport and collect tiles found\n for (let row = start; row <= end; ++row) {\n const line = buffer.lines.get(row + buffer.ydisp) as IBufferLineExt;\n if (!line) return;\n for (let col = 0; col < cols; ++col) {\n if (line.getBg(col) & BgFlags.HAS_EXTENDED) {\n let e: IExtendedAttrsImage = line._extendedAttrs[col] ?? EMPTY_ATTRS;\n const imageId = e.imageId;\n if (imageId === undefined || imageId === -1) {\n continue;\n }\n const imgSpec = this._images.get(imageId);\n if (e.tileId !== -1) {\n const startTile = e.tileId;\n const startCol = col;\n let count = 1;\n /**\n * merge tiles to the right into a single draw call, if:\n * - not at end of line\n * - cell has same image id\n * - cell has consecutive tile id\n */\n while (\n ++col < cols\n && (line.getBg(col) & BgFlags.HAS_EXTENDED)\n && (e = line._extendedAttrs[col] ?? EMPTY_ATTRS)\n && (e.imageId === imageId)\n && (e.tileId === startTile + count)\n ) {\n count++;\n }\n col--;\n if (imgSpec) {\n if (imgSpec.actual) {\n drawCalls.push({ imgSpec, tileId: startTile, col: startCol, row, count });\n }\n } else if (this._opts.showPlaceholder) {\n placeholderCalls.push({ col: startCol, row, count });\n }\n this._fullyCleared = false;\n }\n }\n }\n }\n\n // Sort by z-index so lower z draws first (higher z renders on top)\n drawCalls.sort((a, b) => a.imgSpec.zIndex - b.imgSpec.zIndex);\n\n // Draw placeholders first (lowest priority)\n for (const call of placeholderCalls) {\n this._renderer.drawPlaceholder(call.col, call.row, call.count);\n }\n\n // Draw images in z-index order\n for (const call of drawCalls) {\n this._renderer.draw(call.imgSpec, call.tileId, call.col, call.row, call.count);\n }\n }\n\n public viewportResize(metrics: { cols: number, rows: number }): void {\n // exit early if we have nothing in storage\n if (!this._images.size) {\n this._viewportMetrics = metrics;\n return;\n }\n\n // handle only viewport width enlargements, exit all other cases\n // TODO: needs patch for tile counter\n if (this._viewportMetrics.cols >= metrics.cols) {\n this._viewportMetrics = metrics;\n return;\n }\n\n // walk scrollbuffer at old col width to find all possible expansion matches\n const buffer = this._terminal._core.buffer;\n const rows = buffer.lines.length;\n const oldCol = this._viewportMetrics.cols - 1;\n for (let row = 0; row < rows; ++row) {\n const line = buffer.lines.get(row) as IBufferLineExt;\n if (line.getBg(oldCol) & BgFlags.HAS_EXTENDED) {\n const e: IExtendedAttrsImage = line._extendedAttrs[oldCol] ?? EMPTY_ATTRS;\n const imageId = e.imageId;\n if (imageId === undefined || imageId === -1) {\n continue;\n }\n const imgSpec = this._images.get(imageId);\n if (!imgSpec) {\n continue;\n }\n // found an image tile at oldCol, check if it qualifies for right exapansion\n const tilesPerRow = Math.ceil((imgSpec.actual?.width || 0) / imgSpec.actualCellSize.width);\n if ((e.tileId % tilesPerRow) + 1 >= tilesPerRow) {\n continue;\n }\n // expand only if right side is empty (nothing got wrapped from below)\n let hasData = false;\n for (let rightCol = oldCol + 1; rightCol > metrics.cols; ++rightCol) {\n if (line._data[rightCol * Cell.SIZE + Cell.CONTENT] & Content.HAS_CONTENT_MASK) {\n hasData = true;\n break;\n }\n }\n if (hasData) {\n continue;\n }\n // do right expansion on terminal buffer\n const end = Math.min(metrics.cols, tilesPerRow - (e.tileId % tilesPerRow) + oldCol);\n let lastTile = e.tileId;\n for (let expandCol = oldCol + 1; expandCol < end; ++expandCol) {\n this._writeToCell(line as IBufferLineExt, expandCol, imageId, ++lastTile);\n imgSpec.tileCount++;\n }\n }\n }\n // store new viewport metrics\n this._viewportMetrics = metrics;\n }\n\n /**\n * Retrieve original canvas at buffer position.\n */\n public getImageAtBufferCell(x: number, y: number): HTMLCanvasElement | undefined {\n const buffer = this._terminal._core.buffer;\n const line = buffer.lines.get(y) as IBufferLineExt;\n if (line && line.getBg(x) & BgFlags.HAS_EXTENDED) {\n const e: IExtendedAttrsImage = line._extendedAttrs[x] ?? EMPTY_ATTRS;\n if (e.imageId && e.imageId !== -1) {\n const orig = this._images.get(e.imageId)?.orig;\n if (window.ImageBitmap && orig instanceof ImageBitmap) {\n const canvas = ImageRenderer.createCanvas(window.document, orig.width, orig.height);\n canvas.getContext('2d')?.drawImage(orig, 0, 0, orig.width, orig.height);\n return canvas;\n }\n return orig as HTMLCanvasElement;\n }\n }\n }\n\n /**\n * Extract active single tile at buffer position.\n */\n public extractTileAtBufferCell(x: number, y: number): HTMLCanvasElement | undefined {\n const buffer = this._terminal._core.buffer;\n const line = buffer.lines.get(y) as IBufferLineExt;\n if (line && line.getBg(x) & BgFlags.HAS_EXTENDED) {\n const e: IExtendedAttrsImage = line._extendedAttrs[x] ?? EMPTY_ATTRS;\n if (e.imageId && e.imageId !== -1 && e.tileId !== -1) {\n const spec = this._images.get(e.imageId);\n if (spec) {\n return this._renderer.extractTile(spec, e.tileId);\n }\n }\n }\n }\n\n // TODO: Do we need some blob offloading tricks here to avoid early eviction?\n // also see https://stackoverflow.com/questions/28307789/is-there-any-limitation-on-javascript-max-blob-size\n private _evictOldest(room: number): number {\n const used = this._getStoredPixels();\n let current = used;\n while (this._pixelLimit < current + room && this._images.size) {\n const spec = this._images.get(++this._lowestId);\n if (spec && spec.orig) {\n current -= spec.orig.width * spec.orig.height;\n if (spec.actual && spec.orig !== spec.actual) {\n current -= spec.actual.width * spec.actual.height;\n }\n spec.marker?.dispose();\n this._delImg(this._lowestId);\n }\n }\n return used - current;\n }\n\n private _writeToCell(line: IBufferLineExt, x: number, imageId: number, tileId: number): void {\n if (line._data[x * Cell.SIZE + Cell.BG] & BgFlags.HAS_EXTENDED) {\n const old = line._extendedAttrs[x];\n if (old) {\n if (old.imageId !== undefined) {\n // found an old ExtendedAttrsImage, since we know that\n // they are always isolated instances (single cell usage),\n // we can re-use it and just update their id entries\n const oldSpec = this._images.get(old.imageId);\n if (oldSpec) {\n // early eviction for in-viewport overwrites\n oldSpec.tileCount--;\n }\n old.imageId = imageId;\n old.tileId = tileId;\n return;\n }\n // found a plain ExtendedAttrs instance, clone it to new entry\n line._extendedAttrs[x] = new ExtendedAttrsImage(old.ext, old.urlId, imageId, tileId);\n return;\n }\n }\n // fall-through: always create new ExtendedAttrsImage entry\n line._data[x * Cell.SIZE + Cell.BG] |= BgFlags.HAS_EXTENDED;\n line._extendedAttrs[x] = new ExtendedAttrsImage(0, 0, imageId, tileId);\n }\n\n private _evictOnAlternate(): void {\n // nullify tile count of all images on alternate buffer\n for (const spec of this._images.values()) {\n if (spec.bufferType === 'alternate') {\n spec.tileCount = 0;\n }\n }\n // re-count tiles on whole buffer\n const buffer = this._terminal._core.buffer;\n for (let y = 0; y < this._terminal.rows; ++y) {\n const line = buffer.lines.get(y) as IBufferLineExt;\n if (!line) {\n continue;\n }\n for (let x = 0; x < this._terminal.cols; ++x) {\n if (line._data[x * Cell.SIZE + Cell.BG] & BgFlags.HAS_EXTENDED) {\n const imgId = line._extendedAttrs[x]?.imageId;\n if (imgId) {\n const spec = this._images.get(imgId);\n if (spec) {\n spec.tileCount++;\n }\n }\n }\n }\n }\n // deleted images with zero tile count\n const zero = [];\n for (const [id, spec] of this._images.entries()) {\n if (spec.bufferType === 'alternate' && !spec.tileCount) {\n spec.marker?.dispose();\n zero.push(id);\n }\n }\n for (const id of zero) {\n this._delImg(id);\n }\n }\n}\n", "/**\n * Copyright (c) 2023 The xterm.js authors. All rights reserved.\n * @license MIT\n */\nimport { IImageAddonOptions, IOscHandler, IResetHandler, ITerminalExt } from './Types';\nimport { ImageRenderer } from './ImageRenderer';\nimport { IIPImageStorage } from './IIPImageStorage';\nimport { CELL_SIZE_DEFAULT } from './ImageStorage';\nimport Base64Decoder from 'xterm-wasm-parts/lib/base64/Base64Decoder.wasm';\nimport QoiDecoder from 'xterm-wasm-parts/lib/qoi/QoiDecoder.wasm';\nimport { HeaderParser, IHeaderFields, HeaderState, SequenceType } from './IIPHeaderParser';\nimport { imageType, UNSUPPORTED_TYPE } from './IIPMetrics';\n\n// Local const enum mirror - esbuild can't inline const enums from external packages\nconst enum DecoderConst {\n // Held memory in base64/QOI decoders between images. Zero because each kept\n // decoder pins a wasm memory, and V8 caps those per process (~124 in a\n // sandboxed renderer), so idle terminals must not hold one.\n KEEP_DATA = 0,\n // Initial buffer allocation for the decoder.\n INITIAL_DATA = 1048576,\n // Local mirror of const enum (esbuild can't inline const enums from external packages)\n OK = 0\n}\n\n// default IIP header values\nconst DEFAULT_HEADER: IHeaderFields = {\n type: SequenceType.INVALID,\n name: 'Unnamed file',\n size: 0,\n width: 'auto',\n height: 'auto',\n preserveAspectRatio: 1,\n inline: 0\n};\n\n\nexport class IIPHandler implements IOscHandler, IResetHandler {\n private _generation = 0;\n private _aborted = false;\n private _hp = new HeaderParser();\n private _header: IHeaderFields = DEFAULT_HEADER;\n private _dec: Base64Decoder;\n private _qoiDec: QoiDecoder;\n private _isMultipart = false;\n private _abortMulti = false;\n\n constructor(\n private readonly _opts: IImageAddonOptions,\n private readonly _renderer: ImageRenderer,\n private readonly _storage: IIPImageStorage,\n private readonly _coreTerminal: ITerminalExt\n ) {\n const maxEncodedBytes = Math.ceil(this._opts.iipSizeLimit * 4 / 3);\n const initialBytes = Math.min(DecoderConst.INITIAL_DATA, maxEncodedBytes);\n this._dec = new Base64Decoder(DecoderConst.KEEP_DATA, maxEncodedBytes, initialBytes);\n this._qoiDec = new QoiDecoder(DecoderConst.KEEP_DATA);\n }\n\n public reset(): void {\n this._generation++;\n this._hp.reset();\n this._dec.release();\n this._qoiDec.release();\n }\n\n public start(): void {\n this._aborted = false;\n this._hp.reset();\n }\n\n public put(data: Uint32Array, start: number, end: number): void {\n if (this._aborted) return;\n\n if (this._hp.state === HeaderState.END) {\n if ((this._dec.put(data.subarray(start, end)) as number) !== DecoderConst.OK) {\n this._dec.release();\n this._aborted = true;\n }\n } else {\n const dataPos = this._hp.parse(data, start, end);\n if (dataPos === -1) {\n this._aborted = true;\n return;\n }\n if (dataPos > 0) {\n const seqType = this._hp.fields.type;\n if (seqType === SequenceType.FILE) {\n if (this._isMultipart) {\n this._isMultipart = false;\n this._abortMulti = false;\n this._dec.release();\n }\n this._header = Object.assign({}, DEFAULT_HEADER, this._hp.fields);\n if (!this._header.inline) {\n this._aborted = true;\n return;\n }\n if (!this._initDecoder()) {\n this._aborted = true;\n return;\n }\n } else if (this._abortMulti) {\n this._aborted = true;\n return;\n }\n if ((this._dec.put(data.subarray(dataPos, end)) as number) !== DecoderConst.OK) {\n this._dec.release();\n this._aborted = true;\n if (this._isMultipart) this._abortMulti = true;\n }\n }\n }\n }\n\n public end(success: boolean): boolean | Promise<boolean> {\n if (this._aborted) return true;\n\n if (this._hp.state !== HeaderState.END) {\n if (this._hp.end()) return true;\n }\n const seqType = this._hp.fields.type;\n\n if (seqType === SequenceType.FILEPART) return true;\n\n if (seqType === SequenceType.REPORTCELLSIZE) {\n // OSC 1337 ; ReportCellSize=[height];[width];[scale] ST\n let w = CELL_SIZE_DEFAULT.width;\n let h = CELL_SIZE_DEFAULT.height;\n if (this._renderer.dimensions) {\n w = this._renderer.dimensions.css.canvas.width / this._coreTerminal.cols;\n h = this._renderer.dimensions.css.canvas.height / this._coreTerminal.rows;\n }\n const scale = this._coreTerminal._core._coreBrowserService?.dpr ?? 1;\n const report = `\\x1b]1337;ReportCellSize=${h.toFixed(3)};${w.toFixed(3)};${scale.toFixed(3)}\\x1b\\\\`;\n this._coreTerminal.input(report, false);\n return true;\n }\n\n if (seqType === SequenceType.MULTIPARTFILE) {\n this._header = Object.assign({}, DEFAULT_HEADER, this._hp.fields);\n this._isMultipart = true;\n this._abortMulti = false;\n this._dec.release();\n if (!this._initDecoder()) {\n this._abortMulti = true;\n }\n return true;\n }\n\n if (seqType === SequenceType.FILEEND) {\n if (!this._isMultipart) return true;\n this._isMultipart = false;\n if (this._abortMulti || this._header.type !== SequenceType.MULTIPARTFILE) return true;\n }\n\n // fallthrough for SequenceType.FILE & SequenceType.FILEEND\n\n let w = 0;\n let h = 0;\n\n // early exit condition chain\n let cond: number | boolean;\n let metrics = UNSUPPORTED_TYPE;\n if (cond = success) {\n if (cond = !this._dec.end()) {\n metrics = imageType(this._dec.data8);\n if (cond = metrics.mime !== 'unsupported') {\n w = metrics.width;\n h = metrics.height;\n if (cond = w && h && w * h < this._opts.pixelLimit) {\n [w, h] = this._resize(w, h).map(Math.floor);\n cond = w && h && w * h < this._opts.pixelLimit;\n } else {\n console.warn(`IIP: image dimension issue ${metrics.width}x${metrics.height}`);\n }\n } else {\n console.warn('IIP: unsupported image type');\n }\n } else {\n console.warn('IIP: error during BASE64 decoding');\n }\n }\n if (!cond) {\n this._dec.release();\n return true;\n }\n\n let blob: Blob | ImageData;\n if (metrics.mime === 'image/qoi') {\n let data: Uint8Array<ArrayBuffer>;\n try {\n data = this._qoiDec.decode(this._dec.data8);\n } catch (e) {\n console.warn('IIP: could not decode QOI image', e);\n this._dec.release();\n this._qoiDec.release();\n return true;\n }\n blob = new ImageData(\n new Uint8ClampedArray(data.buffer, data.byteOffset, data.byteLength),\n this._qoiDec.width,\n this._qoiDec.height\n );\n this._qoiDec.release();\n if (w === this._qoiDec.width && h === this._qoiDec.height) {\n // use fast-path if we don't need to rescale\n this._dec.release();\n const canvas = ImageRenderer.createCanvas(undefined, this._qoiDec.width, this._qoiDec.height);\n canvas.getContext('2d')?.putImageData(blob, 0, 0);\n this._storage.addImage(canvas);\n return true;\n }\n } else {\n blob = new Blob([this._dec.data8], { type: metrics.mime });\n }\n this._dec.release();\n const generation = this._generation;\n return createImageBitmap(blob, { resizeWidth: w, resizeHeight: h })\n .then(bm => {\n if (generation !== this._generation) {\n bm.close();\n return true;\n }\n this._storage.addImage(bm);\n return true;\n })\n .catch(e => {\n console.warn(`IIP: decoding error ${metrics.mime} ${metrics.width}x${metrics.height}`, e);\n return true;\n });\n }\n\n // Why: wasm memory exhaustion must drop this image, not throw out of the parser and wedge the write queue.\n private _initDecoder(): boolean {\n try {\n this._dec.init();\n return true;\n } catch (e) {\n console.warn('IIP: could not allocate decoder', e);\n this._dec.release();\n return false;\n }\n }\n\n private _resize(w: number, h: number): [number, number] {\n const cw = this._renderer.dimensions?.css.cell.width || CELL_SIZE_DEFAULT.width;\n const ch = this._renderer.dimensions?.css.cell.height || CELL_SIZE_DEFAULT.height;\n const width = this._renderer.dimensions?.css.canvas.width || cw * this._coreTerminal.cols;\n const height = this._renderer.dimensions?.css.canvas.height || ch * this._coreTerminal.rows;\n\n const rw = this._dim(this._header.width!, width, cw);\n const rh = this._dim(this._header.height!, height, ch);\n if (!rw && !rh) {\n const wf = width / w; // TODO: should this respect initial cursor offset?\n const hf = (height - ch) / h; // TODO: fix offset issues from float cell height\n const f = Math.min(wf, hf);\n return f < 1 ? [w * f, h * f] : [w, h];\n }\n return !rw\n ? [w * rh / h, rh]\n : this._header.preserveAspectRatio || !rw || !rh\n ? [rw, h * rw / w] : [rw, rh];\n }\n\n private _dim(s: string, total: number, cdim: number): number {\n if (s === 'auto') return 0;\n if (s.endsWith('%')) return parseInt(s.slice(0, -1), 10) * total / 100;\n if (s.endsWith('px')) return parseInt(s.slice(0, -2), 10);\n return parseInt(s, 10) * cdim;\n }\n}\n", "/**\n * Copyright (c) 2023 The xterm.js authors. All rights reserved.\n * @license MIT\n */\n\n// eslint-disable-next-line\ndeclare const Buffer: any;\n\nexport const enum HeaderState {\n START = 0,\n ABORT = 1,\n KEY = 2,\n VALUE = 3,\n END = 4\n}\n\nexport const enum SequenceType {\n INVALID = 0,\n FILE = 1,\n MULTIPARTFILE = 2,\n FILEPART = 3,\n FILEEND = 4,\n REPORTCELLSIZE = 5\n}\n\nexport interface IHeaderFields {\n [key: string]: number | string | Uint32Array | null | undefined;\n // sequence type\n type: SequenceType;\n // base-64 encoded filename. Defaults to \"Unnamed file\".\n name: string;\n // File size in bytes. The file transfer will be canceled if this size is exceeded.\n size: number;\n /**\n * Optional width and height to render:\n * - N: N character cells.\n * - Npx: N pixels.\n * - N%: N percent of the session's width or height.\n * - auto: The image's inherent size will be used to determine an appropriate dimension.\n */\n width?: string;\n height?: string;\n // Optional, defaults to 1 respecting aspect ratio (width takes precedence).\n preserveAspectRatio?: number;\n // Optional, defaults to 0. If set to 1, the file will be displayed inline, else downloaded\n // (download not supported).\n inline?: number;\n}\n\n// field value decoders\n\n// ASCII bytes to string\nfunction toStr(data: Uint32Array): string {\n let s = '';\n for (let i = 0; i < data.length; ++i) {\n s += String.fromCharCode(data[i]);\n }\n return s;\n}\n\n// digits to integer\nfunction toInt(data: Uint32Array): number {\n let v = 0;\n for (let i = 0; i < data.length; ++i) {\n if (data[i] < 48 || data[i] > 57) {\n throw new Error('illegal char');\n }\n v = v * 10 + data[i] - 48;\n }\n return v;\n}\n\n// check for correct size entry\nfunction toSize(data: Uint32Array): string {\n const v = toStr(data);\n if (!v.match(/^((auto)|(\\d+?((px)|(%)){0,1}))$/)) {\n throw new Error('illegal size');\n }\n return v;\n}\n\n// name is base64 encoded utf-8\nfunction toName(data: Uint32Array): string {\n if (typeof Buffer !== 'undefined') {\n return Buffer.from(toStr(data), 'base64').toString();\n }\n const bs = atob(toStr(data));\n const b = new Uint8Array(bs.length);\n for (let i = 0; i < b.length; ++i) {\n b[i] = bs.charCodeAt(i);\n }\n return new TextDecoder().decode(b);\n}\n\nconst DECODERS: {[key: string]: (v: Uint32Array) => number | string} = {\n inline: toInt,\n size: toInt,\n name: toName,\n width: toSize,\n height: toSize,\n preserveAspectRatio: toInt\n};\n\n\n// sequence type markers\n// File\nconst FILE_MARKER = [70, 105, 108, 101];\n// MultipartFile\nconst MULTIPARTFILE_MARKER = [77, 117, 108, 116, 105, 112, 97, 114, 116, 70, 105, 108, 101];\n// FilePart\nconst FILEPART_MARKER = [70, 105, 108, 101, 80, 97, 114, 116];\n// FileEnd\nconst FILEEND_MARKER = [70, 105, 108, 101, 69, 110, 100];\n// ReportCellSize\nconst REPORTCELLSIZE_MARKER = [82, 101, 112, 111, 114, 116, 67, 101, 108, 108, 83, 105, 122, 101];\n\n// max allowed chars for sequence header\nconst MAX_FIELDCHARS = 1024;\n\n\nexport class HeaderParser {\n public state: HeaderState = HeaderState.START;\n private _buffer = new Uint32Array(MAX_FIELDCHARS);\n private _position = 0;\n private _key = '';\n public fields: {[key: string]: number | string | Uint32Array | null | undefined} = {};\n\n public reset(): void {\n this._buffer.fill(0);\n this.state = HeaderState.START;\n this._position = 0;\n this.fields = {};\n this._key = '';\n }\n\n public end(): number {\n if (this.state === HeaderState.START) {\n if (this._position === FILEEND_MARKER.length) {\n for (let k = 0; k < FILEEND_MARKER.length; ++k) {\n if (this._buffer[k] !== FILEEND_MARKER[k]) return this._a();\n }\n this.fields['type'] = SequenceType.FILEEND;\n this.state = HeaderState.END;\n return 0;\n }\n if (this._position === REPORTCELLSIZE_MARKER.length) {\n for (let k = 0; k < REPORTCELLSIZE_MARKER.length; ++k) {\n if (this._buffer[k] !== REPORTCELLSIZE_MARKER[k]) return this._a();\n }\n this.fields['type'] = SequenceType.REPORTCELLSIZE;\n this.state = HeaderState.END;\n return 0;\n }\n return this._a();\n }\n if (this.state === HeaderState.END) return 0;\n if (this.state === HeaderState.VALUE\n && this.fields.type === SequenceType.MULTIPARTFILE\n ) {\n if (!this._storeValue(this._position)) return this._a();\n this.state = HeaderState.END;\n return 0;\n }\n return this._a();\n }\n\n public parse(data: Uint32Array, start: number, end: number): number {\n let state = this.state;\n let pos = this._position;\n const buffer = this._buffer;\n if (state === HeaderState.ABORT || state === HeaderState.END) return -1;\n if (state === HeaderState.START && pos > 14) return -1;\n for (let i = start; i < end; ++i) {\n const c = data[i];\n switch (c) {\n case 59: // ;\n if (!this._storeValue(pos)) return this._a();\n state = HeaderState.KEY;\n pos = 0;\n break;\n case 61: // =\n if (state === HeaderState.START) {\n if (buffer[0] === 70) {\n // 'File' or 'FilePart'\n let k = 0;\n for (; k < FILE_MARKER.length; ++k) {\n if (buffer[k] !== FILE_MARKER[k]) return this._a();\n }\n this.fields['type'] = SequenceType.FILE;\n if (pos === FILEPART_MARKER.length) {\n for (; k < FILEPART_MARKER.length; ++k) {\n if (buffer[k] !== FILEPART_MARKER[k]) return this._a();\n }\n this.fields['type'] = SequenceType.FILEPART;\n this.state = HeaderState.END;\n return i + 1;\n }\n } else if (buffer[0] === 77) {\n // 'MultipartFile'\n for (let k = 0; k < MULTIPARTFILE_MARKER.length; ++k) {\n if (buffer[k] !== MULTIPARTFILE_MARKER[k]) return this._a();\n }\n this.fields['type'] = SequenceType.MULTIPARTFILE;\n } else {\n return this._a();\n }\n state = HeaderState.KEY;\n pos = 0;\n } else if (state === HeaderState.KEY) {\n if (!this._storeKey(pos)) return this._a();\n state = HeaderState.VALUE;\n pos = 0;\n } else if (state === HeaderState.VALUE) {\n if (pos >= MAX_FIELDCHARS) return this._a();\n buffer[pos++] = c;\n }\n break;\n case 58: // :\n if (state === HeaderState.VALUE) {\n if (!this._storeValue(pos)) return this._a();\n }\n this.state = HeaderState.END;\n return i + 1;\n default:\n if (pos >= MAX_FIELDCHARS) return this._a();\n buffer[pos++] = c;\n }\n }\n this.state = state;\n this._position = pos;\n return -2;\n }\n\n private _a(): number {\n this.fields.type = SequenceType.INVALID;\n this.state = HeaderState.ABORT;\n return -1;\n }\n\n private _storeKey(pos: number): boolean {\n const k = toStr(this._buffer.subarray(0, pos));\n if (k) {\n this._key = k;\n this.fields[k] = null;\n return true;\n }\n return false;\n }\n\n private _storeValue(pos: number): boolean {\n if (this._key) {\n try {\n const v = this._buffer.slice(0, pos);\n this.fields[this._key] = DECODERS[this._key] ? DECODERS[this._key](v) : v;\n } catch {\n return false;\n }\n return true;\n }\n return false;\n }\n}\n", "/**\n * Copyright (c) 2023 The xterm.js authors. All rights reserved.\n * @license MIT\n */\n\n\nexport type ImageType = 'image/png' | 'image/jpeg' | 'image/gif' | 'image/qoi' | 'image/webp' | 'image/avif' | 'unsupported' | '';\n\nexport interface IMetrics {\n mime: ImageType;\n width: number;\n height: number;\n}\n\nexport const UNSUPPORTED_TYPE: IMetrics = {\n mime: 'unsupported',\n width: 0,\n height: 0\n};\n\nexport function imageType(d: Uint8Array): IMetrics {\n if (d.length < 32) {\n return UNSUPPORTED_TYPE;\n }\n const d32 = new Uint32Array(d.buffer, d.byteOffset, 8);\n // PNG: 89 50 4E 47 0D 0A 1A 0A (8 first bytes == magic number for PNG)\n // + first chunk must be IHDR\n if (d32[0] === 0x474E5089 && d32[1] === 0x0A1A0A0D && d32[3] === 0x52444849) {\n return {\n mime: 'image/png',\n width: d[16] << 24 | d[17] << 16 | d[18] << 8 | d[19],\n height: d[20] << 24 | d[21] << 16 | d[22] << 8 | d[23]\n };\n }\n // JPEG: FF D8 FF\n if (d[0] === 0xFF && d[1] === 0xD8 && d[2] === 0xFF) {\n const [width, height] = jpgSize(d);\n return { mime: 'image/jpeg', width, height };\n }\n // GIF: GIF87a or GIF89a\n if (d32[0] === 0x38464947 && (d[4] === 0x37 || d[4] === 0x39) && d[5] === 0x61) {\n return {\n mime: 'image/gif',\n width: d[7] << 8 | d[6],\n height: d[9] << 8 | d[8]\n };\n }\n // QOI: qoif\n if (d32[0] === 0x66696F71) {\n return {\n mime: 'image/qoi',\n width: d[4] << 24 | d[5] << 16 | d[6] << 8 | d[7],\n height: d[8] << 24 | d[9] << 16 | d[10] << 8 | d[11]\n };\n }\n // WEBP: RIFF | xxxx | WEBP | VP8x\n if (d32[0] === 0x46464952 && d32[2] === 0x50424557 && (d32[3] & 0xFFFFFF) === 0x385056) {\n switch (d[15]) {\n case 0x58: // Extended WebP VP8X --> \"X\"\n return {\n mime: 'image/webp',\n width: (d[24] | d[25] << 8 | d[26] << 16) + 1,\n height: (d[27] | d[28] << 8 | d[29] << 16) + 1\n };\n case 0x4C: // Lossless WebP VP8L --> \"L\"\n if (d[20] !== 0x2f) return UNSUPPORTED_TYPE;\n const dim = d[21] | d[22] << 8 | d[23] << 16 | d[24] << 24;\n return {\n mime: 'image/webp',\n width: (dim & 0x3FFF) + 1,\n height: (dim >>> 14 & 0x3FFF) + 1\n };\n case 0x20: // Lossy WebP VP8 --> \" \"\n if (d[23] !== 0x9d || d[24] !== 0x01 || d[25] !== 0x2a) return UNSUPPORTED_TYPE;\n return {\n mime: 'image/webp',\n width: (d[26] | d[27] << 8) & 0x3FFF,\n height: (d[28] | d[29] << 8) & 0x3FFF\n };\n }\n return UNSUPPORTED_TYPE;\n }\n // AVIF: Box size | ftyp | avif/avis\n if (d32[1] === 0x70797466 && (d32[2] === 0x66697661 || d32[2] === 0x73697661)) {\n let pos = -1;\n // search for ispe box within first 1024 bytes\n const limit = Math.min(d.length - 16, 1024);\n for (let i = 8; i < limit; i++) {\n // scan for ispe\n if (d[i] === 0x69 && d[i + 1] === 0x73 && d[i + 2] === 0x70 && d[i + 3] === 0x65) {\n pos = i;\n break;\n }\n }\n if (pos !== -1) {\n // dimensions are in BE at +8 (width) at +12 (height)\n const width =\n d[pos + 8] << 24 |\n d[pos + 9] << 16 |\n d[pos + 10] << 8 |\n d[pos + 11];\n const height =\n d[pos + 12] << 24 |\n d[pos + 13] << 16 |\n d[pos + 14] << 8 |\n d[pos + 15];\n if (width > 0 && height > 0) {\n return { mime: 'image/avif', width, height };\n }\n }\n return UNSUPPORTED_TYPE;\n }\n return UNSUPPORTED_TYPE;\n}\n\n\nfunction jpgSize(d: Uint8Array): [number, number] {\n const len = d.length;\n let i = 4;\n let blockLength = d[i] << 8 | d[i + 1];\n while (true) {\n i += blockLength;\n if (i >= len) {\n // exhausted without size info\n return [0, 0];\n }\n if (d[i] !== 0xFF) {\n return [0, 0];\n }\n if (d[i + 1] === 0xC0 || d[i + 1] === 0xC2) {\n if (i + 8 < len) {\n return [\n d[i + 7] << 8 | d[i + 8],\n d[i + 5] << 8 | d[i + 6]\n ];\n }\n return [0, 0];\n }\n i += 2;\n blockLength = d[i] << 8 | d[i + 1];\n }\n}\n", "/**\n * Copyright (c) 2026 The xterm.js authors. All rights reserved.\n * @license MIT\n */\n\nimport { IDisposable } from '@xterm/xterm';\nimport { IApcHandler, IImageAddonOptions, IResetHandler, ITerminalExt, ImageLayer } from '../Types';\nimport { ImageRenderer } from '../ImageRenderer';\nimport { CELL_SIZE_DEFAULT } from '../ImageStorage';\nimport { imageType } from '../IIPMetrics';\nimport { KittyImageStorage } from './KittyImageStorage';\nimport Base64Decoder, { type DecodeStatus } from 'xterm-wasm-parts/lib/base64/Base64Decoder.wasm';\nimport {\n KittyAction,\n KittyFormat,\n KittyCompression,\n IKittyCommand,\n IPendingTransmission,\n IKittyImageData,\n KittyPixelConstants,\n parseKittyCommand\n} from './KittyGraphicsTypes';\n\nconst enum Constants {\n // Memory limit for base64 decoder (4MB, same as IIPHandler)\n DECODER_KEEP_DATA = 4194304,\n DECODER_INITIAL_DATA = 4194304, // 4MB\n // Local mirror of const enum (esbuild can't inline const enums from external packages)\n DECODER_OK = 0,\n // Maximum control data size\n MAX_CONTROL_DATA_SIZE = 512,\n // Semicolon codepoint\n SEMICOLON = 0x3B\n}\n\nconst DECODER_OK = Constants.DECODER_OK as unknown as DecodeStatus.OK;\n\n// Kitty graphics protocol handler with streaming base64 decoding.\nexport class KittyGraphicsHandler implements IApcHandler, IResetHandler, IDisposable {\n private _aborted = false;\n private _generation = 0;\n private _decodeError = false;\n\n private _activeDecoder: Base64Decoder | null = null;\n private readonly _maxEncodedBytes: number;\n private readonly _initialEncodedBytes: number;\n\n // Streaming related states\n\n // True while receiving control data (before semicolon).\n private _inControlData = true;\n\n // Buffer for control data.\n private _controlData = new Uint32Array(Constants.MAX_CONTROL_DATA_SIZE);\n private _controlLength = 0;\n\n // Pre-calculated encoded size limit\n private _encodedSizeLimit = 0;\n private _totalEncodedSize = 0;\n\n // Parsed command. These are the control data before semicolon.\n private _parsedCommand: IKittyCommand | null = null;\n\n // Storage related states\n\n private _pendingTransmissions: Map<number, IPendingTransmission> = new Map();\n // Tracks the pending key of the most recently started chunked upload.\n // Per spec, subsequent chunks only need m= (and optionally q=), without i=.\n // When a chunk arrives with no i=, this key is used to find the pending upload.\n private _lastPendingKey: number | undefined;\n\n constructor(\n private readonly _opts: IImageAddonOptions,\n private readonly _renderer: ImageRenderer,\n private readonly _kittyStorage: KittyImageStorage,\n private readonly _coreTerminal: ITerminalExt\n ) {\n // Convert decoded size limit -> max encoded bytes.\n this._maxEncodedBytes = Math.ceil(this._opts.kittySizeLimit * 4 / 3);\n // ensure we preallocate more than configured limit while using 4mb initial size.\n this._initialEncodedBytes = Math.min(Constants.DECODER_INITIAL_DATA, this._maxEncodedBytes);\n }\n\n public reset(): void {\n this._generation++;\n this._cleanupAllPending();\n if (this._activeDecoder) {\n this._activeDecoder.release();\n this._activeDecoder = null;\n }\n this._kittyStorage.reset();\n }\n\n public dispose(): void {\n this.reset();\n }\n\n private _removePendingEntry(key: number): void {\n this._pendingTransmissions.delete(key);\n if (this._lastPendingKey === key) {\n this._lastPendingKey = undefined;\n }\n }\n\n private _cleanupAllPending(): void {\n for (const pending of this._pendingTransmissions.values()) {\n pending.decoder.release();\n }\n this._pendingTransmissions.clear();\n this._lastPendingKey = undefined;\n }\n\n public start(): void {\n this._aborted = false;\n this._decodeError = false;\n this._inControlData = true;\n this._controlLength = 0;\n this._parsedCommand = null;\n // Pre-calculate encoded limit once: base64 is 4 bytes encoded \u2192 3 bytes decoded\n this._encodedSizeLimit = this._maxEncodedBytes;\n this._totalEncodedSize = 0;\n this._activeDecoder = null;\n }\n\n public put(data: Uint32Array, start: number, end: number): void {\n if (this._aborted) return;\n\n if (!this._inControlData) {\n this._streamPayload(data, start, end);\n } else {\n // Scan for semicolon\n let controlEnd = end;\n for (let i = start; i < end; i++) {\n if (data[i] === Constants.SEMICOLON) {\n this._inControlData = false;\n controlEnd = i;\n break;\n }\n }\n\n // Copy control data\n const copyLength = controlEnd - start;\n if (this._controlLength + copyLength > Constants.MAX_CONTROL_DATA_SIZE) {\n this._aborted = true;\n return;\n }\n this._controlData.set(data.subarray(start, controlEnd), this._controlLength);\n this._controlLength += copyLength;\n\n if (!this._inControlData) {\n // Found semicolon - parse control data early for validation\n this._parsedCommand = parseKittyCommand(this._parseControlDataString());\n\n // Early validation: i+I conflict\n if (this._parsedCommand.id !== undefined && this._parsedCommand.imageNumber !== undefined) {\n this._sendResponse(this._parsedCommand.id, 'EINVAL:cannot specify both i and I keys', this._parsedCommand.quiet ?? 0);\n this._aborted = true;\n return;\n }\n\n // Delete action doesn't need payload - skip streaming\n if (this._parsedCommand.action === KittyAction.DELETE) {\n return;\n }\n\n // Stream remaining as payload\n const payloadStart = controlEnd + 1;\n if (payloadStart < end) {\n this._streamPayload(data, payloadStart, end);\n }\n }\n }\n }\n\n // Stream payload bytes into the base64 decoder.\n private _streamPayload(data: Uint32Array, start: number, end: number): void {\n if (this._aborted) return;\n\n // Check size limit (compare encoded bytes against pre-calculated limit)\n // Include cumulative size from pending transmission for multi-chunk images.\n // Per spec, subsequent chunks may omit i=, so fall back to _lastPendingKey.\n const pendingKey = this._parsedCommand?.id ?? this._lastPendingKey ?? 0;\n const pending = this._pendingTransmissions.get(pendingKey);\n const previousEncodedSize = pending?.totalEncodedSize ?? 0;\n this._totalEncodedSize += end - start;\n const cumulativeEncodedSize = previousEncodedSize + this._totalEncodedSize;\n if (cumulativeEncodedSize > this._encodedSizeLimit) {\n const decoderToRelease = this._activeDecoder ?? pending?.decoder;\n if (decoderToRelease) {\n decoderToRelease.release();\n }\n this._activeDecoder = null;\n if (pending) {\n this._removePendingEntry(pendingKey);\n }\n this._aborted = true;\n return;\n }\n\n if (this._decodeError) return;\n\n if (pending?.decoder && !this._activeDecoder) {\n this._activeDecoder = pending.decoder;\n }\n if (!this._activeDecoder) {\n // Budget WASM capacity, including one page of decoder state and rounding.\n const decoderCapacity = this._maxEncodedBytes + 131072;\n if (decoderCapacity > this._opts.storageLimit * 1000000) {\n this._aborted = true;\n if (this._parsedCommand?.id !== undefined) {\n this._sendResponse(this._parsedCommand.id, 'ENOMEM:pending image budget exceeded', this._parsedCommand.quiet ?? 0);\n }\n return;\n }\n const maxPending = Math.max(1, Math.floor(this._opts.storageLimit * 1000000 / decoderCapacity));\n while (this._pendingTransmissions.size >= maxPending) {\n const oldest = this._pendingTransmissions.entries().next().value;\n if (!oldest) break;\n oldest[1].decoder.release();\n this._removePendingEntry(oldest[0]);\n if (oldest[1].cmd.id !== undefined) {\n this._sendResponse(oldest[1].cmd.id, 'ENOMEM:pending image budget exceeded', oldest[1].cmd.quiet ?? 0);\n }\n }\n const decoder = new Base64Decoder(Constants.DECODER_KEEP_DATA, this._maxEncodedBytes, this._initialEncodedBytes);\n try {\n decoder.init();\n } catch (e) {\n // Why: wasm memory exhaustion must drop this image, not throw out of the parser and wedge the write queue.\n console.warn('KITTY: could not allocate decoder', e);\n this._aborted = true;\n if (this._parsedCommand?.id !== undefined) {\n this._sendResponse(this._parsedCommand.id, 'ENOMEM:could not allocate decoder', this._parsedCommand.quiet ?? 0);\n }\n return;\n }\n this._activeDecoder = decoder;\n }\n\n if (this._activeDecoder.put(data.subarray(start, end)) !== DECODER_OK) {\n this._activeDecoder.release();\n this._activeDecoder = null;\n this._decodeError = true;\n if (pending) {\n this._removePendingEntry(pendingKey);\n }\n }\n }\n\n public end(success: boolean): boolean | Promise<boolean> {\n if (this._aborted || !success) {\n if (this._activeDecoder) {\n this._activeDecoder.release();\n this._activeDecoder = null;\n }\n return true;\n }\n\n // No semicolon = no payload (delete, capability query)\n if (this._inControlData) {\n return this._handleNoPayloadCommand();\n }\n\n // Use command parsed early in put() - i+I already validated there\n const cmd = this._parsedCommand!;\n\n // Delete action was handled by skipping payload - just execute\n if (cmd.action === KittyAction.DELETE) {\n return this._handleDelete(cmd);\n }\n\n // Per spec, subsequent chunks may omit i=, so fall back to _lastPendingKey.\n const pendingKey = cmd.id ?? this._lastPendingKey ?? 0;\n const isMoreComing = cmd.more === 1;\n const pending = this._pendingTransmissions.get(pendingKey);\n\n if (isMoreComing) {\n if (this._activeDecoder) {\n if (pending) {\n pending.totalEncodedSize += this._totalEncodedSize;\n pending.decodeError = pending.decodeError || this._decodeError;\n } else {\n this._pendingTransmissions.set(pendingKey, {\n cmd: { ...cmd },\n decoder: this._activeDecoder,\n totalEncodedSize: this._totalEncodedSize,\n decodeError: this._decodeError\n });\n }\n this._lastPendingKey = pendingKey;\n this._activeDecoder = null;\n }\n return true;\n }\n\n // Final chunk received \u2014 clear the last pending key\n if (pending) {\n this._lastPendingKey = undefined;\n }\n\n let decodeError = this._decodeError;\n let finalCmd = cmd;\n let decoder = this._activeDecoder;\n\n if (pending) {\n finalCmd = pending.cmd;\n decoder = pending.decoder;\n decodeError = decodeError || pending.decodeError;\n this._pendingTransmissions.delete(pendingKey);\n }\n\n let imageBytes = new Uint8Array(0);\n if (decoder) {\n if (decoder.end() !== DECODER_OK) {\n decodeError = true;\n }\n imageBytes = decoder.data8;\n }\n this._activeDecoder = null;\n\n // Handle command first \u2014 handlers create Blob/ImageData from imageBytes,\n // which copies the data. Only then is it safe to release the decoder's\n // wasm memory that imageBytes points into.\n const result = this._handleCommandWithBytesAndCmd(finalCmd, imageBytes, decodeError);\n if (decoder) {\n decoder.release();\n }\n return result;\n }\n\n // Command handling\n\n private _parseControlDataString(): string {\n let str = '';\n for (let i = 0; i < this._controlLength; i++) {\n str += String.fromCodePoint(this._controlData[i]);\n }\n return str;\n }\n\n private _handleNoPayloadCommand(): boolean | Promise<boolean> {\n const cmd = parseKittyCommand(this._parseControlDataString());\n\n // Per spec: specifying both i and I is an error\n if (cmd.id !== undefined && cmd.imageNumber !== undefined) {\n this._sendResponse(cmd.id, 'EINVAL:cannot specify both i and I keys', cmd.quiet ?? 0);\n return true;\n }\n\n const action = cmd.action ?? 't';\n\n switch (action) {\n case KittyAction.DELETE:\n return this._handleDelete(cmd);\n case KittyAction.QUERY:\n this._sendResponse(cmd.id ?? 0, 'OK', cmd.quiet ?? 0);\n return true;\n case KittyAction.PLACEMENT:\n return this._handlePlacement(cmd);\n default:\n // TODO: Implement remaining actions when needed:\n // - a=f (frame): animation frame operations\n // - a=a (animation): animation control\n // - a=c (compose): compose images\n if (cmd.id !== undefined) {\n this._sendResponse(cmd.id, 'EINVAL:unsupported action', cmd.quiet ?? 0);\n }\n return true;\n }\n }\n\n private _handleCommandWithBytesAndCmd(cmd: IKittyCommand, bytes: Uint8Array, decodeError: boolean): boolean | Promise<boolean> {\n const action = cmd.action ?? 't';\n\n switch (action) {\n case KittyAction.TRANSMIT: {\n const result = this._handleTransmit(cmd, bytes, decodeError);\n // Only send response when _handleTransmit didn't already respond\n // (it handles unsupported transmission medium responses internally)\n if ((cmd.transmission ?? 'd') === 'd' && cmd.id !== undefined) {\n if (decodeError) {\n this._sendResponse(cmd.id, 'EINVAL:invalid base64 data', cmd.quiet ?? 0);\n } else if (bytes.length > 0) {\n this._sendResponse(cmd.id, 'OK', cmd.quiet ?? 0);\n }\n }\n return result;\n }\n case KittyAction.TRANSMIT_DISPLAY:\n return this._handleTransmitDisplay(cmd, bytes, decodeError);\n case KittyAction.QUERY:\n return this._handleQuery(cmd, bytes, decodeError);\n case KittyAction.PLACEMENT:\n // a=p ignores any payload \u2014 image data was already transmitted\n return this._handlePlacement(cmd);\n default:\n // TODO: Implement remaining actions when needed:\n // - a=f (frame): animation frame operations\n // - a=a (animation): animation control\n // - a=c (compose): compose images\n if (cmd.id !== undefined) {\n this._sendResponse(cmd.id, 'EINVAL:unsupported action', cmd.quiet ?? 0);\n }\n return true;\n }\n }\n\n private _handlePlacement(cmd: IKittyCommand): boolean | Promise<boolean> {\n if (cmd.id === undefined) {\n return true;\n }\n const id = cmd.id;\n const image = this._kittyStorage.getImage(id);\n if (!image) {\n this._sendResponse(id, 'ENOENT:image not found', cmd.quiet ?? 0, cmd.placementId);\n return true;\n }\n const result = this._displayImage(image, cmd);\n return result.then(success => {\n this._sendResponse(id, success ? 'OK' : 'EINVAL:image rendering failed', cmd.quiet ?? 0, cmd.placementId);\n return true;\n });\n }\n\n private _handleTransmit(cmd: IKittyCommand, bytes: Uint8Array, decodeError: boolean): boolean {\n // TODO: Support file-based transmission modes (t=f, t=t, t=s)\n // Currently only supports direct transmission (t=d, the default).\n // - t=f (file): Payload is base64-encoded file path. Terminal reads image from that path.\n // - t=t (temp file): Payload is base64-encoded path in temp directory. Terminal reads, deletes.\n // - t=s: Payload is base64-encoded POSIX shm name. Terminal reads from shared memory.\n // These modes require filesystem/IPC access not available in browsers. For Node.js/Electron:\n // 1. Check cmd.transmission (t key) before treating bytes as image data\n // 2. For t=f/t/s: decode bytes as UTF-8 string (the path/name), then read file contents\n // 3. For t=d: treat bytes as image data (current behavior)\n // When implementing, also update _handleQuery to accept these transmission mediums.\n const transmission = cmd.transmission ?? 'd';\n if (transmission !== 'd') {\n if (cmd.id !== undefined) {\n this._sendResponse(cmd.id, 'EINVAL:unsupported transmission medium', cmd.quiet ?? 0);\n }\n return true;\n }\n\n if (decodeError || bytes.length === 0) return true;\n\n this._kittyStorage.storeImage(cmd.id, {\n data: new Blob([bytes as BlobPart]),\n width: cmd.width ?? 0,\n height: cmd.height ?? 0,\n format: (cmd.format ?? KittyFormat.RGBA) as 24 | 32 | 100,\n compression: cmd.compression ?? ''\n });\n return true;\n }\n\n private _handleTransmitDisplay(cmd: IKittyCommand, bytes: Uint8Array, decodeError: boolean): boolean | Promise<boolean> {\n if (decodeError) {\n if (cmd.id !== undefined) {\n this._sendResponse(cmd.id, 'EINVAL:invalid base64 data', cmd.quiet ?? 0);\n }\n return true;\n }\n\n this._handleTransmit(cmd, bytes, decodeError);\n\n const id = cmd.id ?? this._kittyStorage.lastImageId;\n const image = this._kittyStorage.getImage(id);\n if (image) {\n const result = this._displayImage(image, cmd);\n if (cmd.id !== undefined) {\n return result.then(success => {\n this._sendResponse(id, success ? 'OK' : 'EINVAL:image rendering failed', cmd.quiet ?? 0);\n return true;\n });\n }\n return result.then(() => true);\n }\n return true;\n }\n\n private _handleQuery(cmd: IKittyCommand, bytes: Uint8Array, decodeError: boolean): boolean {\n const id = cmd.id ?? 0;\n const quiet = cmd.quiet ?? 0;\n\n // Per spec: reject unsupported transmission mediums (only t=d is supported atm)\n // TODO: When filesystem support is added (Node.js/Electron), update this to accept\n // t=f (file), t=t (temp file), and t=s (shared memory) and respond OK for queries.\n const transmission = cmd.transmission ?? 'd';\n if (transmission !== 'd') {\n this._sendResponse(id, 'EINVAL:unsupported transmission medium', quiet);\n return true;\n }\n\n // Check decode error first (invalid base64)\n if (decodeError) {\n this._sendResponse(id, 'EINVAL:invalid base64 data', quiet);\n return true;\n }\n\n // Capability query (no payload) - just respond OK\n if (bytes.length === 0) {\n this._sendResponse(id, 'OK', quiet);\n return true;\n }\n\n const format = cmd.format ?? KittyFormat.RGBA;\n\n if (format === KittyFormat.PNG) {\n this._sendResponse(id, 'OK', quiet);\n } else {\n const width = cmd.width ?? 0;\n const height = cmd.height ?? 0;\n\n if (!width || !height) {\n this._sendResponse(id, 'EINVAL:width and height required for raw pixel data', quiet);\n return true;\n }\n\n const bytesPerPixel = format === KittyFormat.RGBA ? KittyPixelConstants.BYTES_PER_PIXEL_RGBA : KittyPixelConstants.BYTES_PER_PIXEL_RGB;\n const expectedBytes = width * height * bytesPerPixel;\n\n if (bytes.length < expectedBytes) {\n this._sendResponse(id, `EINVAL:insufficient pixel data`, quiet);\n return true;\n }\n\n this._sendResponse(id, 'OK', quiet);\n }\n return true;\n }\n\n private _handleDelete(cmd: IKittyCommand): boolean {\n // Per spec: default delete selector is 'a' (delete all visible placements)\n const selector = cmd.deleteSelector ?? 'a';\n\n // TODO: Distinguish lowercase (delete placements only) from uppercase\n // (delete placements + free stored image data). Currently both variants\n // free everything since we don't separate stored data from placements.\n switch (selector) {\n case 'a':\n case 'A':\n this._cleanupAllPending();\n this._kittyStorage.deleteAll();\n break;\n case 'i':\n case 'I':\n // TODO: When placement id tracking is implemented (see TODO in\n // KittyImageStorage), d=i with p=<pid> should delete only that\n // specific placement, while d=i without p should delete all\n // placements for the image.\n if (cmd.id !== undefined) {\n const pending = this._pendingTransmissions.get(cmd.id);\n if (pending) {\n pending.decoder.release();\n }\n this._removePendingEntry(cmd.id);\n this._kittyStorage.deleteById(cmd.id);\n }\n break;\n default:\n // Unsupported selectors (c, n, p, q, r, x, y, z, f) \u2014 ignore for now\n break;\n }\n return true;\n }\n\n private _sendResponse(id: number, message: string, quiet: number, placementId?: number): void {\n const isOk = message === 'OK';\n if (isOk && quiet >= 1) return;\n if (!isOk && quiet >= 2) return;\n\n const pPart = placementId ? `,p=${placementId}` : '';\n const response = `\\x1b_Gi=${id}${pPart};${message}\\x1b\\\\`;\n this._coreTerminal._core.coreService.triggerDataEvent(response);\n }\n\n // Image display\n\n private _displayImage(image: IKittyImageData, cmd: IKittyCommand): Promise<boolean> {\n return this._decodeAndDisplay(image, cmd)\n .then(() => true)\n .catch(() => false);\n }\n\n private async _decodeAndDisplay(image: IKittyImageData, cmd: IKittyCommand): Promise<void> {\n const generation = this._generation;\n let bitmap: ImageBitmap | undefined = await this._createBitmap(image);\n\n try {\n if (generation !== this._generation) throw new Error('image decode canceled');\n const cropX = Math.max(0, cmd.x ?? 0);\n const cropY = Math.max(0, cmd.y ?? 0);\n const cropW = cmd.sourceWidth || (bitmap.width - cropX);\n const cropH = cmd.sourceHeight || (bitmap.height - cropY);\n\n const maxCropW = Math.max(0, bitmap.width - cropX);\n const maxCropH = Math.max(0, bitmap.height - cropY);\n const finalCropW = Math.max(0, Math.min(cropW, maxCropW));\n const finalCropH = Math.max(0, Math.min(cropH, maxCropH));\n\n if (finalCropW === 0 || finalCropH === 0) {\n throw new Error('invalid source rectangle');\n }\n\n if (cropX !== 0 || cropY !== 0 || finalCropW !== bitmap.width || finalCropH !== bitmap.height) {\n const cropped = await createImageBitmap(bitmap, cropX, cropY, finalCropW, finalCropH);\n bitmap.close();\n bitmap = cropped;\n }\n\n const cw = this._renderer.dimensions?.css.cell.width || CELL_SIZE_DEFAULT.width;\n const ch = this._renderer.dimensions?.css.cell.height || CELL_SIZE_DEFAULT.height;\n\n // Per spec: c/r default to image's natural cell dimensions.\n // If only one of c/r is specified, compute the other from image aspect ratio.\n let imgCols: number;\n let imgRows: number;\n if (cmd.columns !== undefined && cmd.rows !== undefined) {\n imgCols = cmd.columns;\n imgRows = cmd.rows;\n } else if (cmd.columns !== undefined) {\n imgCols = cmd.columns;\n imgRows = Math.max(1, Math.ceil((bitmap.height / bitmap.width) * (imgCols * cw) / ch));\n } else if (cmd.rows !== undefined) {\n imgRows = cmd.rows;\n imgCols = Math.max(1, Math.ceil((bitmap.width / bitmap.height) * (imgRows * ch) / cw));\n } else {\n imgCols = Math.ceil(bitmap.width / cw);\n imgRows = Math.ceil(bitmap.height / ch);\n }\n\n let w = bitmap.width;\n let h = bitmap.height;\n\n // Scale bitmap to fit placement rectangle when c/r are specified\n if (cmd.columns !== undefined || cmd.rows !== undefined) {\n w = Math.round(imgCols * cw);\n h = Math.round(imgRows * ch);\n }\n\n if (w * h > this._opts.pixelLimit) {\n throw new Error('image exceeds pixel limit');\n }\n\n // Save cursor position before addImage modifies it\n const buffer = this._coreTerminal._core.buffer;\n const savedX = buffer.x;\n const savedY = buffer.y;\n const savedYbase = buffer.ybase;\n\n // Determine layer based on z-index: negative = behind text, 0+ = on top.\n // When z<0 we always use the bottom layer even without allowTransparency \u2014\n // the image will simply be hidden behind the opaque text background, which\n // is the correct behavior (client asked for \"behind text\").\n const wantsBottom = cmd.zIndex !== undefined && cmd.zIndex < 0;\n const layer: ImageLayer = wantsBottom ? 'bottom' : 'top';\n\n if (w !== bitmap.width || h !== bitmap.height) {\n const scaled = await createImageBitmap(bitmap, { resizeWidth: w, resizeHeight: h });\n bitmap.close();\n bitmap = scaled;\n }\n\n // Per spec: X/Y are pixel offsets within the first cell, so clamp to cell dimensions\n const xOffset = Math.min(Math.max(0, cmd.xOffset ?? 0), cw - 1);\n const yOffset = Math.min(Math.max(0, cmd.yOffset ?? 0), ch - 1);\n if (xOffset !== 0 || yOffset !== 0) {\n // Per spec: X/Y is not added to c/r area. When c/r are explicit, the\n // total placement area remains c*cw \u00D7 r*ch pixels and the offset image\n // is clipped to fit. When c/r are unset, the padded canvas determines\n // the natural cell dimensions.\n const canvasW = (cmd.columns !== undefined) ? Math.round(imgCols * cw) : bitmap.width + xOffset;\n const canvasH = (cmd.rows !== undefined) ? Math.round(imgRows * ch) : bitmap.height + yOffset;\n const offsetCanvas = ImageRenderer.createCanvas(window.document, canvasW, canvasH);\n const offsetCtx = offsetCanvas.getContext('2d');\n if (!offsetCtx) {\n throw new Error('Failed to create offset canvas context');\n }\n offsetCtx.drawImage(bitmap, xOffset, yOffset);\n\n const offsetBitmap = await createImageBitmap(offsetCanvas);\n offsetCanvas.width = offsetCanvas.height = 0;\n bitmap.close();\n bitmap = offsetBitmap;\n w = bitmap.width;\n h = bitmap.height;\n if (w * h > this._opts.pixelLimit) {\n throw new Error('image exceeds pixel limit');\n }\n if (cmd.columns === undefined) {\n imgCols = Math.ceil(bitmap.width / cw);\n }\n if (cmd.rows === undefined) {\n imgRows = Math.ceil(bitmap.height / ch);\n }\n }\n\n if (generation !== this._generation) throw new Error('image decode canceled');\n const zIndex = cmd.zIndex ?? 0;\n this._kittyStorage.addImage(image.id, bitmap, true, layer, zIndex);\n bitmap = undefined; // ownership transferred to storage\n\n // Kitty cursor movement\n // Per spec: cursor placed at first column after last image column,\n // on the last row of the image. C=1 means don't move cursor.\n if (cmd.cursorMovement === 1) {\n // C=1: restore cursor to position before image was placed\n const scrolled = buffer.ybase - savedYbase;\n buffer.x = savedX;\n // Can't restore cursor to scrollback?\n buffer.y = Math.max(savedY - scrolled, 0);\n } else {\n // Default (C=0): advance cursor horizontally past the image\n // addImage already positioned cursor on the last row via lineFeeds\n buffer.x = Math.min(savedX + imgCols, this._coreTerminal.cols);\n }\n } catch (e) {\n bitmap?.close();\n throw e;\n }\n }\n\n // Create ImageBitmap from already-decoded image data.\n private async _createBitmap(image: IKittyImageData): Promise<ImageBitmap> {\n let bytes: Uint8Array = new Uint8Array(await image.data.arrayBuffer());\n\n if (image.compression === KittyCompression.ZLIB) {\n bytes = await this._decompressZlib(bytes);\n }\n\n if (image.format === KittyFormat.PNG) {\n const metrics = imageType(bytes);\n // IHDR dimensions are parsed with signed shifts, so a value >= 0x80000000 comes\n // back negative and a bare `>` pixel-limit test passes it; require positive.\n if (metrics.mime !== 'image/png' || !(metrics.width > 0) || !(metrics.height > 0) || metrics.width * metrics.height > this._opts.pixelLimit) {\n throw new RangeError('PNG exceeds pixel limit or has invalid dimensions');\n }\n const blob = new Blob([bytes as BlobPart], { type: 'image/png' });\n if (!window.createImageBitmap) {\n const url = URL.createObjectURL(blob);\n const img = new Image();\n return new Promise<ImageBitmap>((resolve, reject) => {\n img.addEventListener('load', () => {\n URL.revokeObjectURL(url);\n const canvas = ImageRenderer.createCanvas(window.document, img.width, img.height);\n canvas.getContext('2d')?.drawImage(img, 0, 0);\n createImageBitmap(canvas).then(resolve).catch(reject);\n });\n img.addEventListener('error', () => {\n URL.revokeObjectURL(url);\n reject(new Error('Failed to load image'));\n });\n img.src = url;\n });\n }\n return createImageBitmap(blob);\n }\n\n // Raw pixel data\n const width = image.width;\n const height = image.height;\n\n if (!width || !height) {\n throw new Error('Width and height required for raw pixel data');\n }\n\n const bytesPerPixel = image.format === KittyFormat.RGBA ? KittyPixelConstants.BYTES_PER_PIXEL_RGBA : KittyPixelConstants.BYTES_PER_PIXEL_RGB;\n const expectedBytes = width * height * bytesPerPixel;\n\n if (bytes.length < expectedBytes) {\n throw new Error('Insufficient pixel data');\n }\n\n const pixelCount = width * height;\n\n if (image.format === KittyFormat.RGBA) {\n // RGBA: use bytes directly \u2014 no copy needed\n return createImageBitmap(new ImageData(new Uint8ClampedArray(bytes.buffer as ArrayBuffer, bytes.byteOffset, pixelCount * KittyPixelConstants.BYTES_PER_PIXEL_RGBA), width, height));\n }\n\n // RGB\u2192RGBA: interleave alpha using uint32 block processing (4 pixels per iteration).\n // 3 uint32 reads + 4 uint32 writes per 4 pixels vs 28 byte reads/writes \u2014 ~6x faster.\n // Assumes little-endian (all modern browsers/Node.js).\n const data = new Uint8ClampedArray(pixelCount * KittyPixelConstants.BYTES_PER_PIXEL_RGBA);\n const src32 = new Uint32Array(bytes.buffer, bytes.byteOffset, Math.floor(bytes.byteLength / 4));\n const dst32 = new Uint32Array(data.buffer);\n const alignedPixels = pixelCount & ~3; // round down to multiple of 4\n\n let srcOffset = 0;\n let dstOffset = 0;\n for (let i = 0; i < alignedPixels; i += 4) {\n const b0 = src32[srcOffset++];\n const b1 = src32[srcOffset++];\n const b2 = src32[srcOffset++];\n // Little-endian: pixel bytes are [R,G,B] \u2192 uint32 ABGR layout\n dst32[dstOffset++] = 0xFF000000 | b0;\n dst32[dstOffset++] = 0xFF000000 | (b0 >>> 24) | (b1 << 8);\n dst32[dstOffset++] = 0xFF000000 | (b1 >>> 16) | (b2 << 16);\n dst32[dstOffset++] = 0xFF000000 | (b2 >>> 8);\n }\n\n // Handle remaining 1\u20133 pixels\n let srcByte = alignedPixels * KittyPixelConstants.BYTES_PER_PIXEL_RGB;\n let dstByte = alignedPixels * KittyPixelConstants.BYTES_PER_PIXEL_RGBA;\n for (let i = alignedPixels; i < pixelCount; i++) {\n data[dstByte] = bytes[srcByte];\n data[dstByte + 1] = bytes[srcByte + 1];\n data[dstByte + 2] = bytes[srcByte + 2];\n data[dstByte + 3] = KittyPixelConstants.ALPHA_OPAQUE;\n srcByte += KittyPixelConstants.BYTES_PER_PIXEL_RGB;\n dstByte += KittyPixelConstants.BYTES_PER_PIXEL_RGBA;\n }\n\n return createImageBitmap(new ImageData(data, width, height));\n }\n\n private async _decompressZlib(compressed: Uint8Array): Promise<Uint8Array> {\n try {\n return await this._decompress(compressed, 'deflate');\n } catch (error) {\n if (error instanceof RangeError) throw error;\n return await this._decompress(compressed, 'deflate-raw');\n }\n }\n\n private async _decompress(compressed: Uint8Array, format: 'deflate' | 'deflate-raw'): Promise<Uint8Array> {\n const limit = Math.min(this._opts.kittySizeLimit, this._opts.pixelLimit * 4, this._opts.storageLimit * 1000000);\n let offsetIn = 0;\n // Bound inflation within one native transform before its output is budgeted.\n const source = new ReadableStream<BufferSource>({\n pull(controller) {\n if (offsetIn >= compressed.length) {\n controller.close();\n return;\n }\n const end = Math.min(offsetIn + 4096, compressed.length);\n controller.enqueue(new Uint8Array(compressed.subarray(offsetIn, end)));\n offsetIn = end;\n }\n });\n const reader = source.pipeThrough(new DecompressionStream(format)).getReader();\n const chunks: Uint8Array[] = [];\n let totalLength = 0;\n try {\n while (true) {\n const { done, value } = await reader.read();\n if (done) break;\n totalLength += value.byteLength;\n if (totalLength > limit) {\n await reader.cancel().catch(() => {});\n throw new RangeError('decompressed image exceeds byte limit');\n }\n chunks.push(value);\n }\n } finally {\n reader.releaseLock();\n }\n\n const result = new Uint8Array(totalLength);\n let offset = 0;\n for (const chunk of chunks) {\n result.set(chunk, offset);\n offset += chunk.length;\n }\n return result;\n }\n\n public get images(): ReadonlyMap<number, IKittyImageData> {\n return this._kittyStorage.images;\n }\n\n public get _kittyIdToStorageId(): ReadonlyMap<number, number> {\n return this._kittyStorage.kittyIdToStorageId;\n }\n\n public get pendingTransmissions(): ReadonlyMap<number, IPendingTransmission> {\n return this._pendingTransmissions;\n }\n}\n", "/**\n * Copyright (c) 2026 The xterm.js authors. All rights reserved.\n * @license MIT\n *\n * Kitty graphics protocol types, constants, and parsing utilities.\n */\n\nimport type Base64Decoder from 'xterm-wasm-parts/lib/base64/Base64Decoder.wasm';\n\n// Kitty graphics protocol action types.\n// See: https://sw.kovidgoyal.net/kitty/graphics-protocol/#control-data-reference under key 'a'.\nexport const enum KittyAction {\n TRANSMIT = 't',\n TRANSMIT_DISPLAY = 'T',\n QUERY = 'q',\n PLACEMENT = 'p',\n DELETE = 'd'\n}\n\n// Kitty graphics protocol format types.\n// See: https://sw.kovidgoyal.net/kitty/graphics-protocol/#control-data-reference\nexport const enum KittyFormat {\n RGB = 24,\n RGBA = 32,\n PNG = 100\n}\n\n// Kitty graphics protocol compression types.\n// See: https://sw.kovidgoyal.net/kitty/graphics-protocol/#control-data-reference under key 'o'.\nexport const enum KittyCompression {\n NONE = '',\n ZLIB = 'z'\n}\n\n// Kitty graphics protocol control data keys.\n// See: https://sw.kovidgoyal.net/kitty/graphics-protocol/#control-data-reference\nexport const enum KittyKey {\n // Action to perform (t=transmit, T=transmit+display, q=query, p=placement, d=delete)\n ACTION = 'a',\n // Image format (24=RGB, 32=RGBA, 100=PNG)\n FORMAT = 'f',\n // Image ID for referencing stored images\n ID = 'i',\n // Image number (alternative to ID, terminal assigns ID)\n IMAGE_NUMBER = 'I',\n // Source image width in pixels\n WIDTH = 's',\n // Source image height in pixels\n HEIGHT = 'v',\n // The left edge (in pixels) of the image area to display\n X_OFFSET = 'x',\n // The top edge (in pixels) of the image area to display\n Y_OFFSET = 'y',\n // Width (in pixels) of the source rectangle to display\n SOURCE_WIDTH = 'w',\n // Height (in pixels) of the source rectangle to display\n SOURCE_HEIGHT = 'h',\n // Horizontal offset (in pixels) within the first cell\n X_PLACEMENT_OFFSET = 'X',\n // Vertical offset (in pixels) within the first cell\n Y_PLACEMENT_OFFSET = 'Y',\n // Number of terminal columns to display the image over\n COLUMNS = 'c',\n // Number of terminal rows to display the image over\n ROWS = 'r',\n // More data flag (1=more chunks coming, 0=final chunk)\n MORE = 'm',\n // Compression type (z=zlib). This is essential for chunking larger images.\n COMPRESSION = 'o',\n // Quiet mode (1=suppress OK responses, 2=suppress error responses)\n QUIET = 'q',\n // Cursor movement policy (0=move cursor after image, 1=don't move cursor)\n CURSOR_MOVEMENT = 'C',\n // Z-index for image layering (negative = behind text, 0+ = on top)\n Z_INDEX = 'z',\n // Transmission medium (d=direct, f=file, t=temp file, s=shared memory)\n TRANSMISSION = 't',\n // Delete selector (a/A=all, i/I=by id, c/C=at cursor, etc.) \u2014 only used when a=d\n DELETE_SELECTOR = 'd',\n // Placement ID for targeting specific placements\n PLACEMENT_ID = 'p'\n}\n\n// Pixel format constants\nexport const enum KittyPixelConstants {\n BYTES_PER_PIXEL_RGB = 3,\n BYTES_PER_PIXEL_RGBA = 4,\n ALPHA_OPAQUE = 255\n}\n\n// Parsed Kitty graphics command.\nexport interface IKittyCommand {\n action?: string;\n format?: number;\n id?: number;\n imageNumber?: number;\n width?: number;\n height?: number;\n x?: number;\n y?: number;\n sourceWidth?: number;\n sourceHeight?: number;\n xOffset?: number;\n yOffset?: number;\n columns?: number;\n rows?: number;\n more?: number;\n quiet?: number;\n cursorMovement?: number;\n zIndex?: number;\n transmission?: string;\n deleteSelector?: string;\n placementId?: number;\n compression?: string;\n payload?: string;\n}\n\n// Pending chunked transmission state.\n// Stores metadata from the first chunk while accumulating decoded payload data.\nexport interface IPendingTransmission {\n // The parsed command from the first chunk (contains action, format, dimensions, etc.)\n cmd: IKittyCommand;\n // Decoder used across chunked payloads\n decoder: Base64Decoder;\n // Total encoded (base64) bytes received across all chunks - for size limit enforcement\n totalEncodedSize: number;\n // Whether any chunk has failed to decode\n decodeError: boolean;\n}\n\n// Stored Kitty image data.\nexport interface IKittyImageData {\n id: number;\n // Decoded image data stored as Blob (off JS heap) to avoid 2GB heap limit\n data: Blob;\n width: number;\n height: number;\n format: 24 | 32 | 100;\n compression?: string;\n}\n\n// Parses Kitty graphics control data into a command object.\nexport function parseKittyCommand(data: string): IKittyCommand {\n const cmd: IKittyCommand = {};\n const parts = data.split(',');\n\n for (const part of parts) {\n const eqIdx = part.indexOf('=');\n if (eqIdx === -1) continue;\n\n const key = part.substring(0, eqIdx);\n const value = part.substring(eqIdx + 1);\n\n // Handle string keys first\n if (key === KittyKey.ACTION) {\n cmd.action = value;\n continue;\n }\n if (key === KittyKey.COMPRESSION) {\n cmd.compression = value;\n continue;\n }\n if (key === KittyKey.TRANSMISSION) {\n cmd.transmission = value;\n continue;\n }\n if (key === KittyKey.DELETE_SELECTOR) {\n cmd.deleteSelector = value;\n continue;\n }\n const numValue = parseInt(value, 10);\n switch (key) {\n case KittyKey.FORMAT: cmd.format = numValue; break;\n case KittyKey.ID: cmd.id = numValue; break;\n case KittyKey.IMAGE_NUMBER: cmd.imageNumber = numValue; break;\n case KittyKey.WIDTH: cmd.width = numValue; break;\n case KittyKey.HEIGHT: cmd.height = numValue; break;\n case KittyKey.X_OFFSET: cmd.x = numValue; break;\n case KittyKey.Y_OFFSET: cmd.y = numValue; break;\n case KittyKey.SOURCE_WIDTH: cmd.sourceWidth = numValue; break;\n case KittyKey.SOURCE_HEIGHT: cmd.sourceHeight = numValue; break;\n case KittyKey.X_PLACEMENT_OFFSET: cmd.xOffset = numValue; break;\n case KittyKey.Y_PLACEMENT_OFFSET: cmd.yOffset = numValue; break;\n case KittyKey.COLUMNS: cmd.columns = numValue; break;\n case KittyKey.ROWS: cmd.rows = numValue; break;\n case KittyKey.MORE: cmd.more = numValue; break;\n case KittyKey.QUIET: cmd.quiet = numValue; break;\n case KittyKey.CURSOR_MOVEMENT: cmd.cursorMovement = numValue; break;\n case KittyKey.Z_INDEX: cmd.zIndex = numValue; break;\n case KittyKey.PLACEMENT_ID: cmd.placementId = numValue; break;\n }\n }\n\n return cmd;\n}\n", "/**\n * Copyright (c) 2026 The xterm.js authors. All rights reserved.\n * @license MIT\n */\n\nimport { IDisposable } from '@xterm/xterm';\nimport { ImageStorage } from '../ImageStorage';\nimport { ImageLayer, IAddImageOpts } from '../Types';\nimport { IKittyImageData } from './KittyGraphicsTypes';\n\n// Kitty-specific image storage controller.\n//\n// Wraps shared ImageStorage with kitty protocol semantics:\n// - tracks transmitted image payloads by kitty image id\n// - tracks kitty image id -> shared ImageStorage id mapping for displayed images\n// - mirrors shared-storage evictions into kitty maps\n// - applies protocol-level undisplayed-image eviction policy\nexport class KittyImageStorage implements IDisposable {\n private static readonly _maxStoredImages = 256;\n\n private _nextImageId = 1;\n private readonly _images: Map<number, IKittyImageData> = new Map();\n // TODO: Support multiple placements per image. The kitty spec identifies\n // placements by an (image id, placement id) pair \u2014 same i + different p\n // values should coexist, and same i + same p should replace the prior\n // placement. Currently we track only one storage entry per kitty image id,\n // so multiple placements of the same image overwrite each other. Fixing\n // this requires changing these maps to Map<number, Map<number, number>>\n // (kittyId \u2192 placementId \u2192 storageId) and updating addImage/deleteById\n // accordingly. The underlying shared ImageStorage would also need to\n // support multiple entries per logical image.\n private readonly _kittyIdToStorageId: Map<number, number> = new Map();\n private readonly _storageIdToKittyId: Map<number, number> = new Map();\n\n private readonly _previousOnImageDeleted: ((storageId: number) => void) | undefined;\n private readonly _wrappedOnImageDeleted: (storageId: number) => void;\n private readonly _handleStorageImageDeleted = (storageId: number): void => {\n const kittyId = this._storageIdToKittyId.get(storageId);\n if (kittyId !== undefined) {\n this._kittyIdToStorageId.delete(kittyId);\n this._storageIdToKittyId.delete(storageId);\n this._images.delete(kittyId);\n }\n };\n private _addImageOpts: IAddImageOpts = { scrolling: true, layer: 'top', zIndex: 0, cursorPos: 'iip' };\n\n constructor(\n private readonly _storage: ImageStorage\n ) {\n this._previousOnImageDeleted = this._storage.onImageDeleted;\n this._wrappedOnImageDeleted = (storageId: number) => {\n this._previousOnImageDeleted?.(storageId);\n this._handleStorageImageDeleted(storageId);\n };\n this._storage.onImageDeleted = this._wrappedOnImageDeleted;\n }\n\n public reset(): void {\n this._nextImageId = 1;\n this._images.clear();\n this._kittyIdToStorageId.clear();\n this._storageIdToKittyId.clear();\n }\n\n public dispose(): void {\n this.reset();\n if (this._storage.onImageDeleted === this._wrappedOnImageDeleted) {\n this._storage.onImageDeleted = this._previousOnImageDeleted;\n }\n }\n\n public storeImage(id: number | undefined, imageData: Omit<IKittyImageData, 'id'>): number {\n const imageId = id ?? this._nextImageId++;\n\n const oldStorageId = this._kittyIdToStorageId.get(imageId);\n if (oldStorageId !== undefined) {\n this._storage.deleteImage(oldStorageId);\n this._kittyIdToStorageId.delete(imageId);\n this._storageIdToKittyId.delete(oldStorageId);\n }\n\n if (!this._images.has(imageId) && this._images.size >= KittyImageStorage._maxStoredImages) {\n this._evictUndisplayedImages();\n }\n\n // Encoded images awaiting placement are outside ImageStorage's pixel budget.\n // Unplaced payloads are evicted first so a new upload cannot erase a visible\n // image while abandoned blobs still hold budget; placed ones go only when\n // that is not enough, because the byte cap is a hard bound. The new image is\n // always stored, so an oversized one overshoots by at most one payload\n // (itself bounded by kittySizeLimit) rather than being dropped after an OK ack.\n const byteLimit = this._storage.getLimit() * 1000000;\n this._images.delete(imageId);\n let retainedBytes = 0;\n for (const image of this._images.values()) retainedBytes += image.data.size;\n for (const evictPlaced of [false, true]) {\n for (const [oldestId, image] of this._images) {\n if (retainedBytes + imageData.data.size <= byteLimit) break;\n if (this._kittyIdToStorageId.has(oldestId) !== evictPlaced) continue;\n retainedBytes -= image.data.size;\n this.deleteById(oldestId);\n }\n }\n\n this._images.set(imageId, {\n ...imageData,\n id: imageId\n });\n return imageId;\n }\n\n public addImage(kittyId: number, image: HTMLCanvasElement | ImageBitmap, scrolling: boolean, layer: ImageLayer, zIndex: number): void {\n // Clean up stale reverse-mapping from a previous placement of the same\n // kitty image. The old shared-storage entry is kept (it may still be\n // visible on screen) but its reverse mapping is removed so that eviction\n // of the old entry won't incorrectly delete the kitty image data.\n const oldStorageId = this._kittyIdToStorageId.get(kittyId);\n if (oldStorageId !== undefined) {\n this._storageIdToKittyId.delete(oldStorageId);\n }\n this._addImageOpts.scrolling = scrolling;\n this._addImageOpts.layer = layer;\n this._addImageOpts.zIndex = zIndex;\n const storageId = this._storage.addImage(image, this._addImageOpts);\n this._kittyIdToStorageId.set(kittyId, storageId);\n this._storageIdToKittyId.set(storageId, kittyId);\n }\n\n public getImage(kittyId: number): IKittyImageData | undefined {\n return this._images.get(kittyId);\n }\n\n public deleteById(kittyId: number): void {\n this._images.delete(kittyId);\n const storageId = this._kittyIdToStorageId.get(kittyId);\n if (storageId !== undefined) {\n this._storage.deleteImage(storageId);\n this._kittyIdToStorageId.delete(kittyId);\n this._storageIdToKittyId.delete(storageId);\n }\n }\n\n public deleteAll(): void {\n this._images.clear();\n for (const storageId of this._kittyIdToStorageId.values()) {\n this._storage.deleteImage(storageId);\n }\n this._kittyIdToStorageId.clear();\n this._storageIdToKittyId.clear();\n }\n\n public get images(): ReadonlyMap<number, IKittyImageData> {\n return this._images;\n }\n\n public get kittyIdToStorageId(): ReadonlyMap<number, number> {\n return this._kittyIdToStorageId;\n }\n\n public get lastImageId(): number {\n return this._nextImageId - 1;\n }\n\n private _evictUndisplayedImages(): void {\n for (const [kittyId] of this._images) {\n if (this._images.size <= KittyImageStorage._maxStoredImages / 2) {\n break;\n }\n if (!this._kittyIdToStorageId.has(kittyId)) {\n this._images.delete(kittyId);\n }\n }\n }\n}\n", "/**\n * Copyright (c) 2020, 2023 The xterm.js authors. All rights reserved.\n * @license MIT\n */\n\nimport { SixelImageStorage } from './SixelImageStorage';\nimport { IDcsHandler, IParams, IImageAddonOptions, ITerminalExt, AttributeData, IResetHandler, ReadonlyColorSet } from './Types';\nimport { toRGBA8888, BIG_ENDIAN, PALETTE_ANSI_256, PALETTE_VT340_COLOR } from 'sixel/lib/Colors';\nimport { RGBA8888 } from 'sixel/lib/Types';\nimport { ImageRenderer } from './ImageRenderer';\n\nimport { DecoderAsync, Decoder } from 'sixel/lib/Decoder';\nimport { LIMITS } from 'sixel/lib/wasm';\n\n// always free decoder ressources after decoding if it exceeds this limit\nconst MEM_PERMA_LIMIT = 4194304; // 1024 pixels * 1024 pixels * 4 channels = 4MB\n\n// custom default palette: VT340 (lower 16 colors) + ANSI256 (up to 256) + zeroed (up to 4096)\nconst DEFAULT_PALETTE = PALETTE_ANSI_256;\nDEFAULT_PALETTE.set(PALETTE_VT340_COLOR);\n\n// Why pooled: every decoder owns a wasm memory, and V8 caps live wasm memories\n// per process (~124 in a sandboxed renderer). Terminals borrow a decoder only\n// while a SIXEL sequence is open, so idle terminals hold none.\nconst MAX_IDLE_DECODERS = 2;\nconst idleDecoders = new Map<number, Decoder[]>();\nlet poolPrimed = false;\n\nfunction primeDecoderPool(memoryLimit: number): void {\n if (poolPrimed) return;\n poolPrimed = true;\n // Async compile once, off the parser's hot path; later decoders reuse the cached module.\n DecoderAsync({ memoryLimit, palette: DEFAULT_PALETTE }).then(\n d => releaseDecoder(d, memoryLimit),\n () => { poolPrimed = false; }\n );\n}\n\nfunction acquireDecoder(memoryLimit: number): Decoder {\n return idleDecoders.get(memoryLimit)?.pop() ?? new Decoder({ memoryLimit, palette: DEFAULT_PALETTE });\n}\n\nfunction releaseDecoder(dec: Decoder, memoryLimit: number): void {\n if (dec.memoryUsage > MEM_PERMA_LIMIT) {\n dec.release();\n }\n const idle = idleDecoders.get(memoryLimit) ?? [];\n if (idle.length < MAX_IDLE_DECODERS) {\n idle.push(dec);\n idleDecoders.set(memoryLimit, idle);\n }\n}\n\n\nexport class SixelHandler implements IDcsHandler, IResetHandler {\n private _size = 0;\n private _aborted = false;\n private _dec: Decoder | undefined;\n private _decMemoryLimit = 0;\n // Color registers outlive a single image, so they live here rather than in a pooled decoder.\n private readonly _palette = new Uint32Array(LIMITS.PALETTE_SIZE);\n\n constructor(\n private readonly _opts: IImageAddonOptions,\n private readonly _storage: SixelImageStorage,\n private readonly _coreTerminal: ITerminalExt\n ) {\n this._palette.set(DEFAULT_PALETTE);\n primeDecoderPool(this._opts.pixelLimit * 4);\n }\n\n public reset(): void {\n this._returnDecoder();\n this._palette.fill(0);\n this._palette.set(DEFAULT_PALETTE);\n }\n\n public hook(params: IParams): void {\n this._size = 0;\n this._aborted = false;\n this._returnDecoder();\n const memoryLimit = this._opts.pixelLimit * 4;\n try {\n this._dec = acquireDecoder(memoryLimit);\n } catch (e) {\n // Why: exhausting wasm memory must drop this image, not throw out of the parser and wedge the write queue.\n console.warn(`SIXEL: could not allocate decoder - ${e}`);\n this._aborted = true;\n return;\n }\n this._decMemoryLimit = memoryLimit;\n const fillColor = params.params[1] === 1 ? 0 : extractActiveBg(\n this._coreTerminal._core._inputHandler._curAttrData,\n this._coreTerminal._core._themeService?.colors);\n this._dec.init(fillColor, this._palette, this._opts.sixelPaletteLimit);\n }\n\n private _returnDecoder(): void {\n const dec = this._dec;\n if (!dec) return;\n this._dec = undefined;\n this._palette.set(dec.palette);\n releaseDecoder(dec, this._decMemoryLimit);\n }\n\n public put(data: Uint32Array, start: number, end: number): void {\n if (this._aborted || !this._dec) {\n return;\n }\n this._size += end - start;\n if (this._size > this._opts.sixelSizeLimit) {\n console.warn(`SIXEL: too much data, aborting`);\n this._aborted = true;\n this._dec.release();\n return;\n }\n try {\n this._dec.decode(data, start, end);\n } catch (e) {\n console.warn(`SIXEL: error while decoding image - ${e}`);\n this._aborted = true;\n this._dec.release();\n }\n }\n\n public unhook(success: boolean): boolean | Promise<boolean> {\n try {\n return this._unhook(success);\n } finally {\n this._returnDecoder();\n }\n }\n\n private _unhook(success: boolean): boolean {\n if (this._aborted || !success || !this._dec) {\n return true;\n }\n\n const width = this._dec.width;\n const height = this._dec.height;\n\n // partial fix for https://github.com/jerch/xterm-addon-image/issues/37\n if (!width || !height) {\n if (height) {\n this._storage.advanceCursor(height);\n }\n return true;\n }\n\n const canvas = ImageRenderer.createCanvas(undefined, width, height);\n canvas.getContext('2d')?.putImageData(new ImageData(this._dec.data8 as Uint8ClampedArray<ArrayBuffer>, width, height), 0, 0);\n this._storage.addImage(canvas);\n return true;\n }\n}\n\n\n/**\n * Some helpers to extract current terminal colors.\n */\n\n// get currently active background color from terminal\n// also respect INVERSE setting\nfunction extractActiveBg(attr: AttributeData, colors: ReadonlyColorSet | undefined): RGBA8888 {\n let bg = 0;\n if (!colors) {\n // FIXME: theme service is prolly not available yet,\n // happens if .open() was not called yet (bug in core?)\n return bg;\n }\n if (attr.isInverse()) {\n if (attr.isFgDefault()) {\n bg = convertLe(colors.foreground.rgba);\n } else if (attr.isFgRGB()) {\n const t = (attr.constructor as typeof AttributeData).toColorRGB(attr.getFgColor());\n bg = toRGBA8888(...t);\n } else {\n bg = convertLe(colors.ansi[attr.getFgColor()].rgba);\n }\n } else {\n if (attr.isBgDefault()) {\n bg = convertLe(colors.background.rgba);\n } else if (attr.isBgRGB()) {\n const t = (attr.constructor as typeof AttributeData).toColorRGB(attr.getBgColor());\n bg = toRGBA8888(...t);\n } else {\n bg = convertLe(colors.ansi[attr.getBgColor()].rgba);\n }\n }\n return bg;\n}\n\n// rgba values on the color managers are always in BE, thus convert to LE\nfunction convertLe(color: number): RGBA8888 {\n if (BIG_ENDIAN) return color;\n return (color & 0xFF) << 24 | (color >>> 8 & 0xFF) << 16 | (color >>> 16 & 0xFF) << 8 | color >>> 24 & 0xFF;\n}\n", "/**\n * Copyright (c) 2020 The xterm.js authors. All rights reserved.\n * @license MIT\n */\n\nimport { ImageStorage, CELL_SIZE_DEFAULT } from './ImageStorage';\nimport { IImageAddonOptions, ITerminalExt, IAddImageOpts } from './Types';\nimport { ImageRenderer } from './ImageRenderer';\n\n/**\n * Sixel-specific image storage controller.\n *\n * Wraps the shared ImageStorage with sixel protocol semantics:\n * - Cursor behavior governed by DECSET 80 (sixelScrolling option)\n * - advanceCursor for empty sixels carrying only height\n */\nexport class SixelImageStorage {\n private _addImageOpts: IAddImageOpts = { scrolling: true, layer: 'top', zIndex: 0, cursorPos: 'vt340' };\n constructor(\n private readonly _storage: ImageStorage,\n private readonly _opts: IImageAddonOptions,\n private readonly _renderer: ImageRenderer,\n private readonly _terminal: ITerminalExt\n ) {}\n\n /**\n * Add a sixel image to storage.\n * Cursor behavior depends on the sixelScrolling option (DECSET 80).\n */\n public addImage(img: HTMLCanvasElement | ImageBitmap): void {\n this._addImageOpts.scrolling = this._opts.sixelScrolling;\n this._storage.addImage(img, this._addImageOpts);\n }\n\n /**\n * Only advance text cursor.\n * This is an edge case from empty sixels carrying only a height but no pixels.\n * Partially fixes https://github.com/jerch/xterm-addon-image/issues/37.\n */\n public advanceCursor(height: number): void {\n if (this._opts.sixelScrolling) {\n let cellSize = this._renderer.cellSize;\n if (cellSize.width === -1 || cellSize.height === -1) {\n cellSize = CELL_SIZE_DEFAULT;\n }\n const rows = Math.ceil(height / cellSize.height);\n for (let i = 1; i < rows; ++i) {\n this._terminal._core._inputHandler.lineFeed();\n }\n }\n }\n}\n", "/**\n * Copyright (c) 2023 The xterm.js authors. All rights reserved.\n * @license MIT\n */\n\nimport { IAddImageOpts } from './Types';\nimport { ImageStorage } from './ImageStorage';\n\n/**\n * IIP (iTerm Image Protocol) specific image storage controller.\n *\n * Wraps the shared ImageStorage with IIP protocol semantics:\n * - Always uses scrolling mode (cursor advances with image)\n */\nexport class IIPImageStorage {\n private _addImageOpts: IAddImageOpts = { scrolling: true, layer: 'top', zIndex: 0, cursorPos: 'iip' };\n constructor(\n private readonly _storage: ImageStorage\n ) {}\n\n /**\n * Add an IIP image to storage.\n * Always uses scrolling mode \u2014 cursor advances past the image.\n */\n public addImage(img: HTMLCanvasElement | ImageBitmap): void {\n this._storage.addImage(img, this._addImageOpts);\n }\n}\n", "/**\n * Copyright (c) 2020 The xterm.js authors. All rights reserved.\n * @license MIT\n */\n\nimport type { ITerminalAddon, IDisposable } from '@xterm/xterm';\nimport type { ImageAddon as IImageApi } from '@xterm/addon-image';\nimport { Emitter, type IEvent } from 'common/Event';\nimport { IIPHandler } from './IIPHandler';\nimport { ImageRenderer } from './ImageRenderer';\nimport { ImageStorage, CELL_SIZE_DEFAULT } from './ImageStorage';\nimport { KittyGraphicsHandler } from './kitty/KittyGraphicsHandler';\nimport { KittyImageStorage } from './kitty/KittyImageStorage';\nimport { SixelHandler } from './SixelHandler';\nimport { SixelImageStorage } from './SixelImageStorage';\nimport { IIPImageStorage } from './IIPImageStorage';\nimport { ITerminalExt, IImageAddonOptions, IResetHandler } from './Types';\n\n\n/**\n * Document VT features provided by this addon.\n *\n * @vt: #E[Supported via @xterm/addon-image.] DCS SIXEL \"SIXEL Graphics\" \"DCS Ps ; Ps ; Ps ; q Pt ST\" \"Draw SIXEL image.\"\n *\n * Sixel support is provided by the addon @xterm/addon-image with these limitations:\n * - immediate coloring (no shared palette, allows high color settings of `img2sixel`)\n * - max. palette size of 4096 colors\n * - max. pixel width of 16K\n * - max. 25 MB per sixel sequence\n * - VT340 cursor positioning (begin of last sixel data row)\n *\n * See [addon readme](https://github.com/xtermjs/xterm.js/tree/master/addons/addon-image) for more details.\n *\n *\n * @vt: #E[Supported via @xterm/addon-image.] OSC 1337 \"iTerm2 Commands\" \"OSC 1337 ; Pt BEL\" \"Custom iTerm2 commands.\"\n *\n * Only the inline image protocol (IIP) is supported by the addon @xterm/addon-image with\n * the following limitations:\n * - sequence:\n * - format: `OSC 1337 ; File=inline=1 ; size=<unencoded size> ; ... : <base64 payload> BEL`\n * - size param must be set and payload may not exceed CEIL(size * 4 / 3)\n * - strict base64 handling as of RFC4648 \u00A74 (standard alphabet, optional padding,\n * no separator bytes allowed)\n * - supported params: size, name, width, height, preserveAspectRatio\n * - image formats: PNG, JPEG and GIF\n * - no animation support (renders first image of a GIF)\n * - no multipart support\n * - VT340 cursor positioning (begin of last sixel data row)\n *\n * See [addon readme](https://github.com/xtermjs/xterm.js/tree/master/addons/addon-image)\n * and [iTerm2 IIP docs](https://iterm2.com/documentation-images.html) for more details.\n *\n *\n * @vt: #E[Supported via @xterm/addon-image.] APC KITTY_GRAPHICS \"Kitty Graphics\" \"APC G Pt ST\" \"Kitty Graphics Protocol.\"\n *\n * Kitty graphics support is provided by the addon @xterm/addon-image.\n * Note that while basic image output already works, this is still work in progress.\n */\n\n// default values of addon ctor options\nconst DEFAULT_OPTIONS: IImageAddonOptions = {\n enableSizeReports: true,\n pixelLimit: 16777216, // limit to 4096 * 4096 pixels\n sixelSupport: true,\n sixelScrolling: true,\n sixelPaletteLimit: 4096,\n sixelSizeLimit: 33554432,\n storageLimit: 128,\n showPlaceholder: true,\n iipSupport: true,\n iipSizeLimit: 33554432,\n kittySupport: true,\n kittySizeLimit: 33554432\n};\n\n// max palette size supported by the sixel lib (compile time setting)\nconst MAX_SIXEL_PALETTE_SIZE = 4096;\n\n// definitions for _xtermGraphicsAttributes sequence\nconst enum GaItem {\n COLORS = 1,\n SIXEL_GEO = 2,\n REGIS_GEO = 3\n}\nconst enum GaAction {\n READ = 1,\n SET_DEFAULT = 2,\n SET = 3,\n READ_MAX = 4\n}\nconst enum GaStatus {\n SUCCESS = 0,\n ITEM_ERROR = 1,\n ACTION_ERROR = 2,\n FAILURE = 3\n}\n\n\nexport class ImageAddon implements ITerminalAddon, IImageApi {\n private _opts: IImageAddonOptions;\n private _defaultOpts: IImageAddonOptions;\n private _storage: ImageStorage | undefined;\n private _renderer: ImageRenderer | undefined;\n private _disposables: IDisposable[] = [];\n private _terminal: ITerminalExt | undefined;\n private _handlers: Map<String, IResetHandler> = new Map();\n private readonly _onImageAdded = new Emitter<void>();\n public readonly onImageAdded: IEvent<void> = this._onImageAdded.event;\n\n constructor(opts?: Partial<IImageAddonOptions>) {\n this._opts = Object.assign({}, DEFAULT_OPTIONS, opts);\n this._defaultOpts = Object.assign({}, DEFAULT_OPTIONS, opts);\n }\n\n public dispose(): void {\n for (const handler of this._handlers.values()) handler.reset();\n for (const obj of this._disposables) {\n obj.dispose();\n }\n this._disposables.length = 0;\n this._handlers.clear();\n this._onImageAdded.dispose();\n }\n\n private _disposeLater(...args: IDisposable[]): void {\n for (const obj of args) {\n this._disposables.push(obj);\n }\n }\n\n public activate(terminal: ITerminalExt): void {\n this._terminal = terminal;\n\n // internal data structures\n this._renderer = new ImageRenderer(terminal);\n this._storage = new ImageStorage(terminal, this._renderer, this._opts);\n this._storage.onImageAdded = () => this._onImageAdded.fire();\n\n // enable size reports\n if (this._opts.enableSizeReports) {\n const windowOps = terminal.options.windowOptions ?? {};\n windowOps.getWinSizePixels = true;\n windowOps.getCellSizePixels = true;\n windowOps.getWinSizeChars = true;\n terminal.options.windowOptions = windowOps;\n }\n\n this._disposeLater(\n this._renderer,\n this._storage,\n\n // DECSET/DECRST/DA1/XTSMGRAPHICS handlers\n terminal.parser.registerCsiHandler({ prefix: '?', final: 'h' }, params => this._decset(params)),\n terminal.parser.registerCsiHandler({ prefix: '?', final: 'l' }, params => this._decrst(params)),\n terminal.parser.registerCsiHandler({ final: 'c' }, params => this._da1(params)),\n terminal.parser.registerCsiHandler({ prefix: '?', final: 'S' }, params => this._xtermGraphicsAttributes(params)),\n\n // render hook\n terminal.onRender(range => this._storage?.render(range)),\n\n /**\n * reset handlers covered:\n * - DECSTR\n * - RIS\n * - Terminal.reset()\n */\n terminal.parser.registerCsiHandler({ intermediates: '!', final: 'p' }, () => this.reset()),\n terminal.parser.registerEscHandler({ final: 'c' }, () => this.reset()),\n terminal._core._inputHandler.onRequestReset(() => this.reset()),\n\n // wipe canvas and delete alternate images on buffer switch\n terminal.buffer.onBufferChange(() => this._storage?.wipeAlternate()),\n\n // extend images to the right on resize\n terminal.onResize(metrics => this._storage?.viewportResize(metrics))\n );\n\n // SIXEL handler\n if (this._opts.sixelSupport) {\n const sixelStorage = new SixelImageStorage(this._storage!, this._opts, this._renderer!, terminal);\n const sixelHandler = new SixelHandler(this._opts, sixelStorage, terminal);\n this._handlers.set('sixel', sixelHandler);\n this._disposeLater(\n terminal._core._inputHandler._parser.registerDcsHandler({ final: 'q' }, sixelHandler)\n );\n }\n\n // iTerm IIP handler\n if (this._opts.iipSupport) {\n const iipStorage = new IIPImageStorage(this._storage!);\n const iipHandler = new IIPHandler(this._opts, this._renderer!, iipStorage, terminal);\n this._handlers.set('iip', iipHandler);\n this._disposeLater(\n terminal._core._inputHandler._parser.registerOscHandler(1337, iipHandler)\n );\n }\n\n // Kitty graphics handler\n if (this._opts.kittySupport) {\n const kittyStorage = new KittyImageStorage(this._storage!);\n const kittyHandler = new KittyGraphicsHandler(this._opts, this._renderer!, kittyStorage, terminal);\n this._handlers.set('kitty', kittyHandler);\n this._disposeLater(\n kittyStorage,\n kittyHandler,\n terminal._core._inputHandler._parser.registerApcHandler({ final: 'G' }, kittyHandler)\n );\n }\n }\n\n // Note: storageLimit is skipped here to not intoduce a surprising side effect.\n public reset(): boolean {\n // reset options customizable by sequences to defaults\n this._opts.sixelScrolling = this._defaultOpts.sixelScrolling;\n this._opts.sixelPaletteLimit = this._defaultOpts.sixelPaletteLimit;\n // also clear image storage\n this._storage?.reset();\n // reset protocol handlers\n for (const handler of this._handlers.values()) {\n handler.reset();\n }\n return false;\n }\n\n public get storageLimit(): number {\n return this._storage?.getLimit() || -1;\n }\n\n public set storageLimit(limit: number) {\n this._storage?.setLimit(limit);\n this._opts.storageLimit = limit;\n }\n\n public get storageUsage(): number {\n if (this._storage) {\n return this._storage.getUsage();\n }\n return -1;\n }\n\n public get showPlaceholder(): boolean {\n return this._opts.showPlaceholder;\n }\n\n public set showPlaceholder(value: boolean) {\n this._opts.showPlaceholder = value;\n this._renderer?.showPlaceholder(value);\n }\n\n public getImageAtBufferCell(x: number, y: number): HTMLCanvasElement | undefined {\n return this._storage?.getImageAtBufferCell(x, y);\n }\n\n public extractTileAtBufferCell(x: number, y: number): HTMLCanvasElement | undefined {\n return this._storage?.extractTileAtBufferCell(x, y);\n }\n\n private _report(s: string): void {\n this._terminal?._core.input(s, false);\n }\n\n private _decset(params: (number | number[])[]): boolean {\n for (let i = 0; i < params.length; ++i) {\n switch (params[i]) {\n case 80:\n this._opts.sixelScrolling = false;\n break;\n }\n }\n return false;\n }\n\n private _decrst(params: (number | number[])[]): boolean {\n for (let i = 0; i < params.length; ++i) {\n switch (params[i]) {\n case 80:\n this._opts.sixelScrolling = true;\n break;\n }\n }\n return false;\n }\n\n // overload DA to return something more appropriate\n private _da1(params: (number | number[])[]): boolean {\n if (params[0]) {\n return true;\n }\n // reported features:\n // 62 - VT220\n // 4 - SIXEL support\n // 9 - charsets\n // 22 - ANSI colors\n if (this._opts.sixelSupport) {\n this._report(`\\x1b[?62;4;9;22c`);\n return true;\n }\n return false;\n }\n\n /**\n * Implementation of xterm's graphics attribute sequence.\n *\n * Supported features:\n * - read/change palette limits (max 4096 by sixel lib)\n * - read SIXEL canvas geometry (reports current window canvas or\n * squared pixelLimit if canvas > pixel limit)\n *\n * Everything else is deactivated.\n */\n private _xtermGraphicsAttributes(params: (number | number[])[]): boolean {\n if (params.length < 2) {\n return true;\n }\n if (params[0] === GaItem.COLORS) {\n switch (params[1]) {\n case GaAction.READ:\n this._report(`\\x1b[?${params[0]};${GaStatus.SUCCESS};${this._opts.sixelPaletteLimit}S`);\n return true;\n case GaAction.SET_DEFAULT:\n this._opts.sixelPaletteLimit = this._defaultOpts.sixelPaletteLimit;\n this._report(`\\x1b[?${params[0]};${GaStatus.SUCCESS};${this._opts.sixelPaletteLimit}S`);\n // also reset protocol handlers for now\n for (const handler of this._handlers.values()) {\n handler.reset();\n }\n return true;\n case GaAction.SET:\n if (params.length > 2 && !(params[2] instanceof Array) && params[2] <= MAX_SIXEL_PALETTE_SIZE) {\n this._opts.sixelPaletteLimit = params[2];\n this._report(`\\x1b[?${params[0]};${GaStatus.SUCCESS};${this._opts.sixelPaletteLimit}S`);\n } else {\n this._report(`\\x1b[?${params[0]};${GaStatus.ACTION_ERROR}S`);\n }\n return true;\n case GaAction.READ_MAX:\n this._report(`\\x1b[?${params[0]};${GaStatus.SUCCESS};${MAX_SIXEL_PALETTE_SIZE}S`);\n return true;\n default:\n this._report(`\\x1b[?${params[0]};${GaStatus.ACTION_ERROR}S`);\n return true;\n }\n }\n if (params[0] === GaItem.SIXEL_GEO) {\n switch (params[1]) {\n // we only implement read and read_max here\n case GaAction.READ:\n let width = this._renderer?.dimensions?.css.canvas.width;\n let height = this._renderer?.dimensions?.css.canvas.height;\n if (!width || !height) {\n // for some reason we have no working image renderer\n // --> fallback to default cell size\n const cellSize = CELL_SIZE_DEFAULT;\n width = (this._terminal?.cols || 80) * cellSize.width;\n height = (this._terminal?.rows || 24) * cellSize.height;\n }\n if (width * height < this._opts.pixelLimit) {\n this._report(`\\x1b[?${params[0]};${GaStatus.SUCCESS};${width.toFixed(0)};${height.toFixed(0)}S`);\n } else {\n // if we overflow pixelLimit report that squared instead\n const x = Math.floor(Math.sqrt(this._opts.pixelLimit));\n this._report(`\\x1b[?${params[0]};${GaStatus.SUCCESS};${x};${x}S`);\n }\n return true;\n case GaAction.READ_MAX:\n // read_max returns pixelLimit as square area\n const x = Math.floor(Math.sqrt(this._opts.pixelLimit));\n this._report(`\\x1b[?${params[0]};${GaStatus.SUCCESS};${x};${x}S`);\n return true;\n default:\n this._report(`\\x1b[?${params[0]};${GaStatus.ACTION_ERROR}S`);\n return true;\n }\n }\n // exit with error on ReGIS or any other requests\n this._report(`\\x1b[?${params[0]};${GaStatus.ITEM_ERROR}S`);\n return true;\n }\n}\n"],
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"width", "height", "rw", "rh", "wf", "hf", "f", "s", "total", "cdim", "import_Base64Decoder", "parseKittyCommand", "data", "cmd", "parts", "part", "eqIdx", "key", "value", "numValue", "DECODER_OK", "KittyGraphicsHandler", "_opts", "_renderer", "_kittyStorage", "_coreTerminal", "key", "pending", "data", "start", "end", "controlEnd", "i", "copyLength", "parseKittyCommand", "payloadStart", "pendingKey", "previousEncodedSize", "decoderToRelease", "decoderCapacity", "maxPending", "oldest", "decoder", "Base64Decoder", "e", "success", "cmd", "isMoreComing", "decodeError", "finalCmd", "imageBytes", "result", "str", "bytes", "id", "image", "quiet", "format", "width", "height", "bytesPerPixel", "expectedBytes", "message", "placementId", "isOk", "pPart", "response", "generation", "bitmap", "cropX", "cropY", "cropW", "cropH", "maxCropW", "maxCropH", "finalCropW", "finalCropH", "cropped", "cw", "CELL_SIZE_DEFAULT", "ch", "imgCols", "imgRows", "w", "h", "buffer", "savedX", "savedY", "savedYbase", "layer", "scaled", "xOffset", "yOffset", "canvasW", "canvasH", "offsetCanvas", "ImageRenderer", "offsetCtx", "offsetBitmap", "zIndex", "scrolled", "metrics", "imageType", "blob", "url", "img", "resolve", "reject", "canvas", "pixelCount", "src32", "dst32", "alignedPixels", "srcOffset", "dstOffset", "b0", "b1", "b2", "srcByte", "dstByte", "compressed", "error", "limit", "offsetIn", "reader", "controller", "chunks", "totalLength", "done", "value", "offset", "chunk", "_KittyImageStorage", "_storage", "storageId", "kittyId", "id", "imageData", "imageId", "oldStorageId", "byteLimit", "retainedBytes", "image", "evictPlaced", "oldestId", "scrolling", "layer", "zIndex", "KittyImageStorage", "import_Colors", "import_Decoder", "import_wasm", "MEM_PERMA_LIMIT", "DEFAULT_PALETTE", "MAX_IDLE_DECODERS", "idleDecoders", "poolPrimed", "primeDecoderPool", "memoryLimit", "d", "releaseDecoder", "acquireDecoder", "dec", "idle", "SixelHandler", "_opts", "_storage", "_coreTerminal", "params", "e", "fillColor", "extractActiveBg", "data", "start", "end", "success", "width", "height", "canvas", "ImageRenderer", "attr", "colors", "bg", "convertLe", "t", "color", "SixelImageStorage", "_storage", "_opts", "_renderer", "_terminal", "img", "height", "cellSize", "CELL_SIZE_DEFAULT", "rows", "i", "IIPImageStorage", "_storage", "img", "DEFAULT_OPTIONS", "MAX_SIXEL_PALETTE_SIZE", "ImageAddon", "opts", "Emitter", "DEFAULT_OPTIONS", "handler", "obj", "args", "terminal", "ImageRenderer", "ImageStorage", "windowOps", "params", "range", "metrics", "sixelStorage", "SixelImageStorage", "sixelHandler", "SixelHandler", "iipStorage", "IIPImageStorage", "iipHandler", "IIPHandler", "kittyStorage", "KittyImageStorage", "kittyHandler", "KittyGraphicsHandler", "limit", "value", "x", "y", "s", "i", "MAX_SIXEL_PALETTE_SIZE", "width", "height", "cellSize", "CELL_SIZE_DEFAULT"]
|
||
}
|
||
diff --git a/src/IIPHandler.ts b/src/IIPHandler.ts
|
||
index 559b907416eb38318f439d060d7f89311ed34c7e..73cedbe99f831bffd202697cc8ba80a46a39cb99 100644
|
||
--- a/src/IIPHandler.ts
|
||
+++ b/src/IIPHandler.ts
|
||
@@ -13,8 +13,10 @@ import { imageType, UNSUPPORTED_TYPE } from './IIPMetrics';
|
||
|
||
// Local const enum mirror - esbuild can't inline const enums from external packages
|
||
const enum DecoderConst {
|
||
- // Limit held memory in base64 decoder (encoded bytes).
|
||
- KEEP_DATA = 4194304,
|
||
+ // Held memory in base64/QOI decoders between images. Zero because each kept
|
||
+ // decoder pins a wasm memory, and V8 caps those per process (~124 in a
|
||
+ // sandboxed renderer), so idle terminals must not hold one.
|
||
+ KEEP_DATA = 0,
|
||
// Initial buffer allocation for the decoder.
|
||
INITIAL_DATA = 1048576,
|
||
// Local mirror of const enum (esbuild can't inline const enums from external packages)
|
||
@@ -34,6 +36,7 @@ const DEFAULT_HEADER: IHeaderFields = {
|
||
|
||
|
||
export class IIPHandler implements IOscHandler, IResetHandler {
|
||
+ private _generation = 0;
|
||
private _aborted = false;
|
||
private _hp = new HeaderParser();
|
||
private _header: IHeaderFields = DEFAULT_HEADER;
|
||
@@ -55,6 +58,7 @@ export class IIPHandler implements IOscHandler, IResetHandler {
|
||
}
|
||
|
||
public reset(): void {
|
||
+ this._generation++;
|
||
this._hp.reset();
|
||
this._dec.release();
|
||
this._qoiDec.release();
|
||
@@ -92,7 +96,10 @@ export class IIPHandler implements IOscHandler, IResetHandler {
|
||
this._aborted = true;
|
||
return;
|
||
}
|
||
- this._dec.init();
|
||
+ if (!this._initDecoder()) {
|
||
+ this._aborted = true;
|
||
+ return;
|
||
+ }
|
||
} else if (this._abortMulti) {
|
||
this._aborted = true;
|
||
return;
|
||
@@ -135,7 +142,9 @@ export class IIPHandler implements IOscHandler, IResetHandler {
|
||
this._isMultipart = true;
|
||
this._abortMulti = false;
|
||
this._dec.release();
|
||
- this._dec.init();
|
||
+ if (!this._initDecoder()) {
|
||
+ this._abortMulti = true;
|
||
+ }
|
||
return true;
|
||
}
|
||
|
||
@@ -179,7 +188,15 @@ export class IIPHandler implements IOscHandler, IResetHandler {
|
||
|
||
let blob: Blob | ImageData;
|
||
if (metrics.mime === 'image/qoi') {
|
||
- const data = this._qoiDec.decode(this._dec.data8);
|
||
+ let data: Uint8Array<ArrayBuffer>;
|
||
+ try {
|
||
+ data = this._qoiDec.decode(this._dec.data8);
|
||
+ } catch (e) {
|
||
+ console.warn('IIP: could not decode QOI image', e);
|
||
+ this._dec.release();
|
||
+ this._qoiDec.release();
|
||
+ return true;
|
||
+ }
|
||
blob = new ImageData(
|
||
new Uint8ClampedArray(data.buffer, data.byteOffset, data.byteLength),
|
||
this._qoiDec.width,
|
||
@@ -198,8 +215,13 @@ export class IIPHandler implements IOscHandler, IResetHandler {
|
||
blob = new Blob([this._dec.data8], { type: metrics.mime });
|
||
}
|
||
this._dec.release();
|
||
+ const generation = this._generation;
|
||
return createImageBitmap(blob, { resizeWidth: w, resizeHeight: h })
|
||
.then(bm => {
|
||
+ if (generation !== this._generation) {
|
||
+ bm.close();
|
||
+ return true;
|
||
+ }
|
||
this._storage.addImage(bm);
|
||
return true;
|
||
})
|
||
@@ -209,6 +231,18 @@ export class IIPHandler implements IOscHandler, IResetHandler {
|
||
});
|
||
}
|
||
|
||
+ // Why: wasm memory exhaustion must drop this image, not throw out of the parser and wedge the write queue.
|
||
+ private _initDecoder(): boolean {
|
||
+ try {
|
||
+ this._dec.init();
|
||
+ return true;
|
||
+ } catch (e) {
|
||
+ console.warn('IIP: could not allocate decoder', e);
|
||
+ this._dec.release();
|
||
+ return false;
|
||
+ }
|
||
+ }
|
||
+
|
||
private _resize(w: number, h: number): [number, number] {
|
||
const cw = this._renderer.dimensions?.css.cell.width || CELL_SIZE_DEFAULT.width;
|
||
const ch = this._renderer.dimensions?.css.cell.height || CELL_SIZE_DEFAULT.height;
|
||
diff --git a/src/ImageAddon.ts b/src/ImageAddon.ts
|
||
index 8fd39543118cd420e36c1614c1af370b6c7bbfbb..0c44d2a81642113417bf8dc10a4faa76d7cc5864 100644
|
||
--- a/src/ImageAddon.ts
|
||
+++ b/src/ImageAddon.ts
|
||
@@ -113,6 +113,7 @@ export class ImageAddon implements ITerminalAddon, IImageApi {
|
||
}
|
||
|
||
public dispose(): void {
|
||
+ for (const handler of this._handlers.values()) handler.reset();
|
||
for (const obj of this._disposables) {
|
||
obj.dispose();
|
||
}
|
||
diff --git a/src/ImageRenderer.ts b/src/ImageRenderer.ts
|
||
index 5854efaec1fdf9dfcb886023542998a563b6d2f2..3afaf9bd63ffd7a4cdf32bf0ac24cf33a8aa814f 100644
|
||
--- a/src/ImageRenderer.ts
|
||
+++ b/src/ImageRenderer.ts
|
||
@@ -186,16 +186,17 @@ export class ImageRenderer extends Disposable implements IDisposable {
|
||
|
||
this._rescaleImage(imgSpec, width, height);
|
||
const img = imgSpec.actual!;
|
||
- const cols = Math.ceil(img.width / width);
|
||
+ const { width: sourceWidth, height: sourceHeight } = imgSpec.actualCellSize;
|
||
+ const cols = Math.ceil(img.width / sourceWidth);
|
||
|
||
- const sx = (tileId % cols) * width;
|
||
- const sy = Math.floor(tileId / cols) * height;
|
||
+ const sx = (tileId % cols) * sourceWidth;
|
||
+ const sy = Math.floor(tileId / cols) * sourceHeight;
|
||
const dx = col * width;
|
||
const dy = row * height;
|
||
|
||
// safari bug: never access image source out of bounds
|
||
- const finalWidth = count * width + sx > img.width ? img.width - sx : count * width;
|
||
- const finalHeight = sy + height > img.height ? img.height - sy : height;
|
||
+ const finalWidth = count * sourceWidth + sx > img.width ? img.width - sx : count * sourceWidth;
|
||
+ const finalHeight = sy + sourceHeight > img.height ? img.height - sy : sourceHeight;
|
||
|
||
// Floor all pixel offsets to get stable tile mapping without any overflows.
|
||
// Note: For not pixel perfect aligned cells like in the DOM renderer
|
||
@@ -204,7 +205,7 @@ export class ImageRenderer extends Disposable implements IDisposable {
|
||
ctx.drawImage(
|
||
img,
|
||
Math.floor(sx), Math.floor(sy), Math.ceil(finalWidth), Math.ceil(finalHeight),
|
||
- Math.floor(dx), Math.floor(dy), Math.ceil(finalWidth), Math.ceil(finalHeight)
|
||
+ Math.floor(dx), Math.floor(dy), Math.ceil(finalWidth * width / sourceWidth), Math.ceil(finalHeight * height / sourceHeight)
|
||
);
|
||
}
|
||
|
||
@@ -219,19 +220,20 @@ export class ImageRenderer extends Disposable implements IDisposable {
|
||
}
|
||
this._rescaleImage(imgSpec, width, height);
|
||
const img = imgSpec.actual!;
|
||
- const cols = Math.ceil(img.width / width);
|
||
- const sx = (tileId % cols) * width;
|
||
- const sy = Math.floor(tileId / cols) * height;
|
||
- const finalWidth = width + sx > img.width ? img.width - sx : width;
|
||
- const finalHeight = sy + height > img.height ? img.height - sy : height;
|
||
-
|
||
- const canvas = ImageRenderer.createCanvas(this.document, finalWidth, finalHeight);
|
||
+ const { width: sourceWidth, height: sourceHeight } = imgSpec.actualCellSize;
|
||
+ const cols = Math.ceil(img.width / sourceWidth);
|
||
+ const sx = (tileId % cols) * sourceWidth;
|
||
+ const sy = Math.floor(tileId / cols) * sourceHeight;
|
||
+ const finalWidth = sourceWidth + sx > img.width ? img.width - sx : sourceWidth;
|
||
+ const finalHeight = sy + sourceHeight > img.height ? img.height - sy : sourceHeight;
|
||
+
|
||
+ const canvas = ImageRenderer.createCanvas(this.document, Math.ceil(finalWidth * width / sourceWidth), Math.ceil(finalHeight * height / sourceHeight));
|
||
const ctx = canvas.getContext('2d');
|
||
if (ctx) {
|
||
ctx.drawImage(
|
||
img,
|
||
Math.floor(sx), Math.floor(sy), Math.floor(finalWidth), Math.floor(finalHeight),
|
||
- 0, 0, Math.floor(finalWidth), Math.floor(finalHeight)
|
||
+ 0, 0, canvas.width, canvas.height
|
||
);
|
||
return canvas;
|
||
}
|
||
@@ -299,11 +301,16 @@ export class ImageRenderer extends Disposable implements IDisposable {
|
||
spec.actualCellSize.height = originalHeight;
|
||
return;
|
||
}
|
||
- const canvas = ImageRenderer.createCanvas(
|
||
- this.document,
|
||
- Math.ceil(spec.orig!.width * currentWidth / originalWidth),
|
||
- Math.ceil(spec.orig!.height * currentHeight / originalHeight)
|
||
- );
|
||
+ const scaledWidth = Math.ceil(spec.orig!.width * currentWidth / originalWidth);
|
||
+ const scaledHeight = Math.ceil(spec.orig!.height * currentHeight / originalHeight);
|
||
+ // Upscale visible tiles directly; a full zoomed copy can dwarf the image budget.
|
||
+ if (scaledWidth * scaledHeight > spec.orig!.width * spec.orig!.height) {
|
||
+ spec.actual = spec.orig;
|
||
+ spec.actualCellSize.width = originalWidth;
|
||
+ spec.actualCellSize.height = originalHeight;
|
||
+ return;
|
||
+ }
|
||
+ const canvas = ImageRenderer.createCanvas(this.document, scaledWidth, scaledHeight);
|
||
const ctx = canvas.getContext('2d');
|
||
if (ctx) {
|
||
ctx.drawImage(spec.orig!, 0, 0, canvas.width, canvas.height);
|
||
@@ -415,7 +422,11 @@ export class ImageRenderer extends Disposable implements IDisposable {
|
||
for (let i = 0; i < width; i += bWidth) {
|
||
ctx2.drawImage(blueprint, i, 0);
|
||
}
|
||
- ImageRenderer.createImageBitmap(this._placeholder).then(bitmap => this._placeholderBitmap = bitmap);
|
||
+ const placeholder = this._placeholder;
|
||
+ ImageRenderer.createImageBitmap(placeholder).then(bitmap => {
|
||
+ if (this._placeholder !== placeholder) bitmap?.close();
|
||
+ else this._placeholderBitmap = bitmap;
|
||
+ }).catch(() => {});
|
||
}
|
||
|
||
public get document(): Document | undefined {
|
||
diff --git a/src/SixelHandler.ts b/src/SixelHandler.ts
|
||
index 1af2d85bcdd541ed60b1e707f6186a91f1bbf1b2..0711a122ea43d5212a2851add9e744b65550ec85 100644
|
||
--- a/src/SixelHandler.ts
|
||
+++ b/src/SixelHandler.ts
|
||
@@ -10,6 +10,7 @@ import { RGBA8888 } from 'sixel/lib/Types';
|
||
import { ImageRenderer } from './ImageRenderer';
|
||
|
||
import { DecoderAsync, Decoder } from 'sixel/lib/Decoder';
|
||
+import { LIMITS } from 'sixel/lib/wasm';
|
||
|
||
// always free decoder ressources after decoding if it exceeds this limit
|
||
const MEM_PERMA_LIMIT = 4194304; // 1024 pixels * 1024 pixels * 4 channels = 4MB
|
||
@@ -18,48 +19,88 @@ const MEM_PERMA_LIMIT = 4194304; // 1024 pixels * 1024 pixels * 4 channels = 4MB
|
||
const DEFAULT_PALETTE = PALETTE_ANSI_256;
|
||
DEFAULT_PALETTE.set(PALETTE_VT340_COLOR);
|
||
|
||
+// Why pooled: every decoder owns a wasm memory, and V8 caps live wasm memories
|
||
+// per process (~124 in a sandboxed renderer). Terminals borrow a decoder only
|
||
+// while a SIXEL sequence is open, so idle terminals hold none.
|
||
+const MAX_IDLE_DECODERS = 2;
|
||
+const idleDecoders = new Map<number, Decoder[]>();
|
||
+let poolPrimed = false;
|
||
+
|
||
+function primeDecoderPool(memoryLimit: number): void {
|
||
+ if (poolPrimed) return;
|
||
+ poolPrimed = true;
|
||
+ // Async compile once, off the parser's hot path; later decoders reuse the cached module.
|
||
+ DecoderAsync({ memoryLimit, palette: DEFAULT_PALETTE }).then(
|
||
+ d => releaseDecoder(d, memoryLimit),
|
||
+ () => { poolPrimed = false; }
|
||
+ );
|
||
+}
|
||
+
|
||
+function acquireDecoder(memoryLimit: number): Decoder {
|
||
+ return idleDecoders.get(memoryLimit)?.pop() ?? new Decoder({ memoryLimit, palette: DEFAULT_PALETTE });
|
||
+}
|
||
+
|
||
+function releaseDecoder(dec: Decoder, memoryLimit: number): void {
|
||
+ if (dec.memoryUsage > MEM_PERMA_LIMIT) {
|
||
+ dec.release();
|
||
+ }
|
||
+ const idle = idleDecoders.get(memoryLimit) ?? [];
|
||
+ if (idle.length < MAX_IDLE_DECODERS) {
|
||
+ idle.push(dec);
|
||
+ idleDecoders.set(memoryLimit, idle);
|
||
+ }
|
||
+}
|
||
+
|
||
|
||
export class SixelHandler implements IDcsHandler, IResetHandler {
|
||
private _size = 0;
|
||
private _aborted = false;
|
||
private _dec: Decoder | undefined;
|
||
+ private _decMemoryLimit = 0;
|
||
+ // Color registers outlive a single image, so they live here rather than in a pooled decoder.
|
||
+ private readonly _palette = new Uint32Array(LIMITS.PALETTE_SIZE);
|
||
|
||
constructor(
|
||
private readonly _opts: IImageAddonOptions,
|
||
private readonly _storage: SixelImageStorage,
|
||
private readonly _coreTerminal: ITerminalExt
|
||
) {
|
||
- DecoderAsync({
|
||
- memoryLimit: this._opts.pixelLimit * 4,
|
||
- palette: DEFAULT_PALETTE,
|
||
- paletteLimit: this._opts.sixelPaletteLimit
|
||
- }).then(d => this._dec = d);
|
||
+ this._palette.set(DEFAULT_PALETTE);
|
||
+ primeDecoderPool(this._opts.pixelLimit * 4);
|
||
}
|
||
|
||
public reset(): void {
|
||
- /**
|
||
- * reset sixel decoder to defaults:
|
||
- * - release all memory
|
||
- * - nullify palette (4096)
|
||
- * - apply default palette (256)
|
||
- */
|
||
- if (this._dec) {
|
||
- this._dec.release();
|
||
- // FIXME: missing interface on decoder to nullify full palette
|
||
- (this._dec as any)._palette.fill(0);
|
||
- this._dec.init(0, DEFAULT_PALETTE, this._opts.sixelPaletteLimit);
|
||
- }
|
||
+ this._returnDecoder();
|
||
+ this._palette.fill(0);
|
||
+ this._palette.set(DEFAULT_PALETTE);
|
||
}
|
||
|
||
public hook(params: IParams): void {
|
||
this._size = 0;
|
||
this._aborted = false;
|
||
- if (this._dec) {
|
||
- const fillColor = params.params[1] === 1 ? 0 : extractActiveBg(
|
||
- this._coreTerminal._core._inputHandler._curAttrData,
|
||
- this._coreTerminal._core._themeService?.colors);
|
||
- this._dec.init(fillColor, null, this._opts.sixelPaletteLimit);
|
||
+ this._returnDecoder();
|
||
+ const memoryLimit = this._opts.pixelLimit * 4;
|
||
+ try {
|
||
+ this._dec = acquireDecoder(memoryLimit);
|
||
+ } catch (e) {
|
||
+ // Why: exhausting wasm memory must drop this image, not throw out of the parser and wedge the write queue.
|
||
+ console.warn(`SIXEL: could not allocate decoder - ${e}`);
|
||
+ this._aborted = true;
|
||
+ return;
|
||
}
|
||
+ this._decMemoryLimit = memoryLimit;
|
||
+ const fillColor = params.params[1] === 1 ? 0 : extractActiveBg(
|
||
+ this._coreTerminal._core._inputHandler._curAttrData,
|
||
+ this._coreTerminal._core._themeService?.colors);
|
||
+ this._dec.init(fillColor, this._palette, this._opts.sixelPaletteLimit);
|
||
+ }
|
||
+
|
||
+ private _returnDecoder(): void {
|
||
+ const dec = this._dec;
|
||
+ if (!dec) return;
|
||
+ this._dec = undefined;
|
||
+ this._palette.set(dec.palette);
|
||
+ releaseDecoder(dec, this._decMemoryLimit);
|
||
}
|
||
|
||
public put(data: Uint32Array, start: number, end: number): void {
|
||
@@ -83,6 +124,14 @@ export class SixelHandler implements IDcsHandler, IResetHandler {
|
||
}
|
||
|
||
public unhook(success: boolean): boolean | Promise<boolean> {
|
||
+ try {
|
||
+ return this._unhook(success);
|
||
+ } finally {
|
||
+ this._returnDecoder();
|
||
+ }
|
||
+ }
|
||
+
|
||
+ private _unhook(success: boolean): boolean {
|
||
if (this._aborted || !success || !this._dec) {
|
||
return true;
|
||
}
|
||
@@ -100,9 +149,6 @@ export class SixelHandler implements IDcsHandler, IResetHandler {
|
||
|
||
const canvas = ImageRenderer.createCanvas(undefined, width, height);
|
||
canvas.getContext('2d')?.putImageData(new ImageData(this._dec.data8 as Uint8ClampedArray<ArrayBuffer>, width, height), 0, 0);
|
||
- if (this._dec.memoryUsage > MEM_PERMA_LIMIT) {
|
||
- this._dec.release();
|
||
- }
|
||
this._storage.addImage(canvas);
|
||
return true;
|
||
}
|
||
diff --git a/src/kitty/KittyGraphicsHandler.ts b/src/kitty/KittyGraphicsHandler.ts
|
||
index de889dfff75d9ecc8ab47a025e6989ffe75bb202..cf66e5b75c78645b1641e53d1425d88201134f78 100644
|
||
--- a/src/kitty/KittyGraphicsHandler.ts
|
||
+++ b/src/kitty/KittyGraphicsHandler.ts
|
||
@@ -7,6 +7,7 @@ import { IDisposable } from '@xterm/xterm';
|
||
import { IApcHandler, IImageAddonOptions, IResetHandler, ITerminalExt, ImageLayer } from '../Types';
|
||
import { ImageRenderer } from '../ImageRenderer';
|
||
import { CELL_SIZE_DEFAULT } from '../ImageStorage';
|
||
+import { imageType } from '../IIPMetrics';
|
||
import { KittyImageStorage } from './KittyImageStorage';
|
||
import Base64Decoder, { type DecodeStatus } from 'xterm-wasm-parts/lib/base64/Base64Decoder.wasm';
|
||
import {
|
||
@@ -37,6 +38,7 @@ const DECODER_OK = Constants.DECODER_OK as unknown as DecodeStatus.OK;
|
||
// Kitty graphics protocol handler with streaming base64 decoding.
|
||
export class KittyGraphicsHandler implements IApcHandler, IResetHandler, IDisposable {
|
||
private _aborted = false;
|
||
+ private _generation = 0;
|
||
private _decodeError = false;
|
||
|
||
private _activeDecoder: Base64Decoder | null = null;
|
||
@@ -80,6 +82,7 @@ export class KittyGraphicsHandler implements IApcHandler, IResetHandler, IDispos
|
||
}
|
||
|
||
public reset(): void {
|
||
+ this._generation++;
|
||
this._cleanupAllPending();
|
||
if (this._activeDecoder) {
|
||
this._activeDecoder.release();
|
||
@@ -200,8 +203,38 @@ export class KittyGraphicsHandler implements IApcHandler, IResetHandler, IDispos
|
||
this._activeDecoder = pending.decoder;
|
||
}
|
||
if (!this._activeDecoder) {
|
||
- this._activeDecoder = new Base64Decoder(Constants.DECODER_KEEP_DATA, this._maxEncodedBytes, this._initialEncodedBytes);
|
||
- this._activeDecoder.init();
|
||
+ // Budget WASM capacity, including one page of decoder state and rounding.
|
||
+ const decoderCapacity = this._maxEncodedBytes + 131072;
|
||
+ if (decoderCapacity > this._opts.storageLimit * 1000000) {
|
||
+ this._aborted = true;
|
||
+ if (this._parsedCommand?.id !== undefined) {
|
||
+ this._sendResponse(this._parsedCommand.id, 'ENOMEM:pending image budget exceeded', this._parsedCommand.quiet ?? 0);
|
||
+ }
|
||
+ return;
|
||
+ }
|
||
+ const maxPending = Math.max(1, Math.floor(this._opts.storageLimit * 1000000 / decoderCapacity));
|
||
+ while (this._pendingTransmissions.size >= maxPending) {
|
||
+ const oldest = this._pendingTransmissions.entries().next().value;
|
||
+ if (!oldest) break;
|
||
+ oldest[1].decoder.release();
|
||
+ this._removePendingEntry(oldest[0]);
|
||
+ if (oldest[1].cmd.id !== undefined) {
|
||
+ this._sendResponse(oldest[1].cmd.id, 'ENOMEM:pending image budget exceeded', oldest[1].cmd.quiet ?? 0);
|
||
+ }
|
||
+ }
|
||
+ const decoder = new Base64Decoder(Constants.DECODER_KEEP_DATA, this._maxEncodedBytes, this._initialEncodedBytes);
|
||
+ try {
|
||
+ decoder.init();
|
||
+ } catch (e) {
|
||
+ // Why: wasm memory exhaustion must drop this image, not throw out of the parser and wedge the write queue.
|
||
+ console.warn('KITTY: could not allocate decoder', e);
|
||
+ this._aborted = true;
|
||
+ if (this._parsedCommand?.id !== undefined) {
|
||
+ this._sendResponse(this._parsedCommand.id, 'ENOMEM:could not allocate decoder', this._parsedCommand.quiet ?? 0);
|
||
+ }
|
||
+ return;
|
||
+ }
|
||
+ this._activeDecoder = decoder;
|
||
}
|
||
|
||
if (this._activeDecoder.put(data.subarray(start, end)) !== DECODER_OK) {
|
||
@@ -550,9 +583,11 @@ export class KittyGraphicsHandler implements IApcHandler, IResetHandler, IDispos
|
||
}
|
||
|
||
private async _decodeAndDisplay(image: IKittyImageData, cmd: IKittyCommand): Promise<void> {
|
||
+ const generation = this._generation;
|
||
let bitmap: ImageBitmap | undefined = await this._createBitmap(image);
|
||
|
||
try {
|
||
+ if (generation !== this._generation) throw new Error('image decode canceled');
|
||
const cropX = Math.max(0, cmd.x ?? 0);
|
||
const cropY = Math.max(0, cmd.y ?? 0);
|
||
const cropW = cmd.sourceWidth || (bitmap.width - cropX);
|
||
@@ -660,6 +695,7 @@ export class KittyGraphicsHandler implements IApcHandler, IResetHandler, IDispos
|
||
}
|
||
}
|
||
|
||
+ if (generation !== this._generation) throw new Error('image decode canceled');
|
||
const zIndex = cmd.zIndex ?? 0;
|
||
this._kittyStorage.addImage(image.id, bitmap, true, layer, zIndex);
|
||
bitmap = undefined; // ownership transferred to storage
|
||
@@ -693,6 +729,12 @@ export class KittyGraphicsHandler implements IApcHandler, IResetHandler, IDispos
|
||
}
|
||
|
||
if (image.format === KittyFormat.PNG) {
|
||
+ const metrics = imageType(bytes);
|
||
+ // IHDR dimensions are parsed with signed shifts, so a value >= 0x80000000 comes
|
||
+ // back negative and a bare `>` pixel-limit test passes it; require positive.
|
||
+ if (metrics.mime !== 'image/png' || !(metrics.width > 0) || !(metrics.height > 0) || metrics.width * metrics.height > this._opts.pixelLimit) {
|
||
+ throw new RangeError('PNG exceeds pixel limit or has invalid dimensions');
|
||
+ }
|
||
const blob = new Blob([bytes as BlobPart], { type: 'image/png' });
|
||
if (!window.createImageBitmap) {
|
||
const url = URL.createObjectURL(blob);
|
||
@@ -775,27 +817,45 @@ export class KittyGraphicsHandler implements IApcHandler, IResetHandler, IDispos
|
||
private async _decompressZlib(compressed: Uint8Array): Promise<Uint8Array> {
|
||
try {
|
||
return await this._decompress(compressed, 'deflate');
|
||
- } catch {
|
||
+ } catch (error) {
|
||
+ if (error instanceof RangeError) throw error;
|
||
return await this._decompress(compressed, 'deflate-raw');
|
||
}
|
||
}
|
||
|
||
private async _decompress(compressed: Uint8Array, format: 'deflate' | 'deflate-raw'): Promise<Uint8Array> {
|
||
- const ds = new DecompressionStream(format);
|
||
- const writer = ds.writable.getWriter();
|
||
- writer.write(compressed as BufferSource);
|
||
- writer.close();
|
||
-
|
||
+ const limit = Math.min(this._opts.kittySizeLimit, this._opts.pixelLimit * 4, this._opts.storageLimit * 1000000);
|
||
+ let offsetIn = 0;
|
||
+ // Bound inflation within one native transform before its output is budgeted.
|
||
+ const source = new ReadableStream<BufferSource>({
|
||
+ pull(controller) {
|
||
+ if (offsetIn >= compressed.length) {
|
||
+ controller.close();
|
||
+ return;
|
||
+ }
|
||
+ const end = Math.min(offsetIn + 4096, compressed.length);
|
||
+ controller.enqueue(new Uint8Array(compressed.subarray(offsetIn, end)));
|
||
+ offsetIn = end;
|
||
+ }
|
||
+ });
|
||
+ const reader = source.pipeThrough(new DecompressionStream(format)).getReader();
|
||
const chunks: Uint8Array[] = [];
|
||
- const reader = ds.readable.getReader();
|
||
-
|
||
- while (true) {
|
||
- const { done, value } = await reader.read();
|
||
- if (done) break;
|
||
- chunks.push(value);
|
||
+ let totalLength = 0;
|
||
+ try {
|
||
+ while (true) {
|
||
+ const { done, value } = await reader.read();
|
||
+ if (done) break;
|
||
+ totalLength += value.byteLength;
|
||
+ if (totalLength > limit) {
|
||
+ await reader.cancel().catch(() => {});
|
||
+ throw new RangeError('decompressed image exceeds byte limit');
|
||
+ }
|
||
+ chunks.push(value);
|
||
+ }
|
||
+ } finally {
|
||
+ reader.releaseLock();
|
||
}
|
||
|
||
- const totalLength = chunks.reduce((sum, chunk) => sum + chunk.length, 0);
|
||
const result = new Uint8Array(totalLength);
|
||
let offset = 0;
|
||
for (const chunk of chunks) {
|
||
diff --git a/src/kitty/KittyImageStorage.ts b/src/kitty/KittyImageStorage.ts
|
||
index 1f5c09ec9e2700f8f6dbd8436a1802217dfc99ef..016943a77c7e8e27da5899d54cd48d82761a87c8 100644
|
||
--- a/src/kitty/KittyImageStorage.ts
|
||
+++ b/src/kitty/KittyImageStorage.ts
|
||
@@ -83,6 +83,25 @@ export class KittyImageStorage implements IDisposable {
|
||
this._evictUndisplayedImages();
|
||
}
|
||
|
||
+ // Encoded images awaiting placement are outside ImageStorage's pixel budget.
|
||
+ // Unplaced payloads are evicted first so a new upload cannot erase a visible
|
||
+ // image while abandoned blobs still hold budget; placed ones go only when
|
||
+ // that is not enough, because the byte cap is a hard bound. The new image is
|
||
+ // always stored, so an oversized one overshoots by at most one payload
|
||
+ // (itself bounded by kittySizeLimit) rather than being dropped after an OK ack.
|
||
+ const byteLimit = this._storage.getLimit() * 1000000;
|
||
+ this._images.delete(imageId);
|
||
+ let retainedBytes = 0;
|
||
+ for (const image of this._images.values()) retainedBytes += image.data.size;
|
||
+ for (const evictPlaced of [false, true]) {
|
||
+ for (const [oldestId, image] of this._images) {
|
||
+ if (retainedBytes + imageData.data.size <= byteLimit) break;
|
||
+ if (this._kittyIdToStorageId.has(oldestId) !== evictPlaced) continue;
|
||
+ retainedBytes -= image.data.size;
|
||
+ this.deleteById(oldestId);
|
||
+ }
|
||
+ }
|
||
+
|
||
this._images.set(imageId, {
|
||
...imageData,
|
||
id: imageId
|