portable-image
Version:
Image data structure that supports RGB/RGBA/indexed color and arbitrary channels as well as blitters and web's ImageData output.
1 lines • 45.7 kB
JavaScript
(function(e){if(typeof exports==="object"&&typeof module!=="undefined"){module.exports=e()}else if(typeof define==="function"&&define.amd){define([],e)}else{var t;if(typeof window!=="undefined"){t=window}else if(typeof global!=="undefined"){t=global}else if(typeof self!=="undefined"){t=self}else{t=this}t.PortableImage=e()}})(function(){var e,t,r;return function(){function l(a,o,s){function h(r,e){if(!o[r]){if(!a[r]){var t="function"==typeof require&&require;if(!e&&t)return t(r,!0);if(f)return f(r,!0);var i=new Error("Cannot find module '"+r+"'");throw i.code="MODULE_NOT_FOUND",i}var n=o[r]={exports:{}};a[r][0].call(n.exports,function(e){var t=a[r][1][e];return h(t||e)},n,n.exports,l,a,o,s)}return o[r].exports}for(var f="function"==typeof require&&require,e=0;e<s.length;e++)h(s[e]);return h}return l}()({1:[function(e,t,r){"use strict";function i(){this.name="";this.loop=false;this.startFrame=0;this.endFrame=0}t.exports=i},{}],2:[function(e,t,r){"use strict";function i(e,t={}){this.sprite=e;this.startFrame=+t.startFrame||0;this.endFrame=t.endFrame??e.frames.length;this.useCache=!!t.useCache;this.scaleX=t.scaleX??t.scale??1;this.scaleY=t.scaleY??t.scale??1;this.blitParams={scaleX:this.scaleX,scaleY:this.scaleY};this.x=+t.x||0;this.y=+t.y||0;this.imageData=this.sprite.prepareImageData(this.blitParams);this.ctx=t.ctx;this.running=false;this.frameIndex=0}t.exports=i;i.prototype.start=function(){if(this.running){return}this.running=true;this.runLoop()};i.prototype.stop=function(){this.running=false};i.prototype.runLoop=function(){if(!this.running){return}var e,t=this.sprite.frames[this.frameIndex];if(this.useCache){if(!t.imageDataCache){t.updateImageData(null,this.blitParams)}e=t.imageDataCache}else{if(this.imageData){t.updateImageData(this.imageData,this.blitParams)}else{this.imageData=t.createImageData(this.blitParams)}e=this.imageData}this.ctx.putImageData(e,this.x,this.y);this.frameIndex++;if(this.frameIndex>=this.endFrame){this.frameIndex=this.startFrame}setTimeout(()=>this.runLoop(),t.duration)}},{}],3:[function(e,t,r){"use strict";function i(e={}){this.imageIndex=+e.imageIndex||0;this.x=+e.x||0;this.y=+e.y||0}t.exports=i},{}],4:[function(e,t,r){"use strict";function s(e={}){this.channels=Array.isArray(e.channels)?e.channels:s.RGBA;this.indexed=e.indexed||Array.isArray(e.palette);this.bytesPerPixel=this.indexed?1:this.channels.length;this.palette=this.indexed?[]:null;if(Array.isArray(e.palette)){this.setPalette(e.palette)}this.channelIndex={};for(let e=0;e<this.channels.length;e++){this.channelIndex[this.channels[e]]=e}this.isRgbCompatible=this.channels.length>=3&&this.channels[0]==="red"&&this.channels[1]==="green"&&this.channels[2]==="blue";this.isRgbaCompatible=this.channels.length>=4&&this.isRgbCompatible&&this.channels[3]==="alpha";this.isRgb=this.isRgbCompatible&&this.channels.length===3;this.isRgba=this.isRgbaCompatible&&this.channels.length===4;this.isGrayCompatible=this.channels.length>=1&&this.channels[0]==="gray";this.isGrayAlphaCompatible=this.channels.length>=2&&this.isGrayCompatible&&this.channels[1]==="alpha";this.isGray=this.isGrayCompatible&&this.channels.length===1;this.isGrayAlpha=this.isGrayAlphaCompatible&&this.channels.length===2}t.exports=s;const i=s.Mapping=e("./Mapping.js");s.Mapping=i;s.DirectChannelMapping=i.DirectChannelMapping;s.DirectChannelMappingWithDefault=i.DirectChannelMappingWithDefault;s.MatrixChannelMapping=i.MatrixChannelMapping;s.compositing=e("./compositing.js");s.RGB=["red","green","blue"];s.RGBA=["red","green","blue","alpha"];s.GRAY=["gray"];s.GRAY_ALPHA=["gray","alpha"];s.prototype.setPalette=function(t){if(!this.indexed){throw new Error("This is not an indexed image")}this.palette.length=0;for(let e=0;e<t.length;e++){this.setPaletteEntry(e,t[e])}};s.prototype.setPaletteEntry=function(e,t){if(this.isRgb||this.isRgba){return this.setPaletteColor(e,t)}if(!this.indexed){throw new Error("This is not an indexed image")}if(!t){return}var r=this.palette[e];if(!r){r=this.palette[e]=[]}if(Array.isArray(t)){for(let e=0;e<this.channels.length;e++){r[e]=t[e]??0}}else if(typeof t==="object"){for(let e=0;e<this.channels.length;e++){r[e]=t[this.channels[e]]??0}}};const n=255;s.prototype.setPaletteColor=function(e,t){if(!this.indexed){throw new Error("This is not an indexed image")}if(!t){return}var r=this.palette[e];if(!r){r=this.palette[e]=[]}if(Array.isArray(t)){r[0]=t[0]??0;r[1]=t[1]??0;r[2]=t[2]??0;if(this.isRgba){r[3]=t[3]??255}}else if(typeof t==="object"){r[0]=t.R??t.r??0;r[1]=t.G??t.g??0;r[2]=t.B??t.b??0;if(this.isRgba){r[3]=t.A??t.a??255}}else if(typeof t==="string"&&t[0]==="#"){t=t.slice(1);if(t.length===3){t=t[0]+t[0]+t[1]+t[1]+t[2]+t[2]}let e=Number.parseInt(t,16);if(t.length===6){r[0]=e>>16&n;r[1]=e>>8&n;r[2]=e&n;if(this.isRgba){r[3]=255}}else if(t.length===8){r[0]=e>>24&n;r[1]=e>>16&n;r[2]=e>>8&n;if(this.isRgba){r[3]=e&n}}}};s.prototype.hasSamePalette=function(i){if(!this.palette||!i.palette){return false}if(this.palette.length!==i.palette.length){return false}for(let r=0;r<this.palette.length;r++){let t=this.palette[r];for(let e=0;e<t.length;e++){if(t[e]!==i.palette[r][e]){return false}}}return true};s.DEFAULT_CHANNEL_VALUES={red:0,green:0,blue:0,alpha:255};s.prototype.getAutoMappingToChannels=function(r,i=s.DEFAULT_CHANNEL_VALUES){var n=new Array(r.length*2);for(let t=0;t<r.length;t++){let e=r[t];if(Object.hasOwn(this.channelIndex,e)){n[t*2]=this.channelIndex[e];n[t*2+1]=null}else{n[t*2]=null;n[t*2+1]=i[e]??0}}return new s.DirectChannelMappingWithDefault(n)};s.getAutoMapping=function(i,n,a=s.DEFAULT_CHANNEL_VALUES){var o=new Array(n.length*2);for(let r=0;r<n.length;r++){let e=n[r];let t=i.indexOf(e);if(t>=0){o[r*2]=t;o[r*2+1]=null}else{o[r*2]=null;o[r*2+1]=a[e]??0}}return new s.DirectChannelMappingWithDefault(o)};s.prototype.getClosestPaletteIndex=n=>{var e=Math.min(this.channels.length,n.length),a=Infinity,o=0;for(let i=0;i<this.palette.length;i++){let r=0;for(let t=0;t<e;t++){let e=this.palette[i][t]-n[t];r+=e*e;if(r<a){a=r;o=i}}}return o}},{"./Mapping.js":8,"./compositing.js":10}],5:[function(e,t,r){"use strict";function i(e={},t=null){Object.defineProperty(this,"sprite",{configurable:true,value:t});this.duration=e.duration;this.cells=[];this.imageDataCache=null}t.exports=i;const n=e("./Sprite.js");const a=e("./Layer.js");const o=e("./Image.js");i.prototype.setParent=function(e){Object.defineProperty(this,"sprite",{value:e})};i.prototype.clearCache=function(){this.imageDataCache=null};i.prototype.addCell=function(e){this.cells.push(e);return this.cells.length-1};i.prototype.toImage=function(e=o){var r=new o({width:this.sprite.width,height:this.sprite.height,channelDef:this.sprite.channelDef});for(let t of this.cells){let e=this.sprite.images[t.imageIndex];e.copyTo(r,{compositing:o.compositing.binaryOver,x:t.x,y:t.y});console.log("Copy from/to:",r,e," --- cell: ",t)}return r};i.prototype.prepareImageData=function(e={}){return this.sprite.prepareImageData(e)};i.prototype.createImageData=function(e={}){var t=this.sprite.prepareImageData(e);this.updateImageData(t,e,true);return t};i.prototype.updateImageData=function(r,i,e=false){i=i?Object.assign({},i):{};if(!r){if(this.imageDataCache){r=this.imageDataCache;if(!e){r.data.fill(0)}}else{r=this.imageDataCache=this.sprite.prepareImageData(i)}}else if(!e){r.data.fill(0)}for(let t of this.cells){let e=this.sprite.images[t.imageIndex];i.innerX=t.x;i.innerY=t.y;i.compositing=o.compositing.binaryOver;e.updateImageData(r,i,true)}}},{"./Image.js":6,"./Layer.js":7,"./Sprite.js":9}],6:[function(e,r,t){(function(t){(function(){"use strict";function h(e={}){this.width=e.width;this.height=e.height;this.channelDef=e.channelDef??new f(e);this.pixelBuffer=null;if(e.pixelBuffer){if(e.pixelBuffer instanceof t){if(e.pixelBuffer.length!==this.width*this.height*this.channelDef.bytesPerPixel){throw new Error("Provided pixel Buffer mismatch the expected size (should be exactly width * height * bytesPerPixel)")}this.pixelBuffer=e.pixelBuffer}else if(e.pixelBuffer instanceof Uint8Array){if(e.pixelBuffer.length!==this.width*this.height*this.channelDef.bytesPerPixel){throw new Error("Provided pixel Uint8Array buffer mismatch the expected size (should be exactly width * height * bytesPerPixel)")}this.pixelBuffer=t.from(e.pixelBuffer)}else{throw new Error("Provided pixel buffer is not a Buffer or a Uint8Array")}}else{this.pixelBuffer=t.allocUnsafe(this.width*this.height*this.channelDef.bytesPerPixel)}}r.exports=h;const f=h.ChannelDef=h.prototype.ChannelDef=e("./ChannelDef.js");h.compositing=e("./compositing.js");h.prototype.setPalette=function(e){this.channelDef.setPalette(e)};h.prototype.setPaletteEntry=function(e,t){this.channelDef.setPaletteEntry(e,t)};h.prototype.setPaletteColor=function(e,t){this.channelDef.setPaletteColor(e,t)};h.prototype.hasSamePalette=function(e){return this.channelDef.hasSamePalette(e.channelDef)};h.prototype.getAutoMappingTo=function(e,t=f.DEFAULT_CHANNEL_VALUES){return this.channelDef.getAutoMappingToChannels(e.channelDef.channels,t)};h.prototype.copyTo=function(e,t={}){var r=t.mapping,i=t.scaleX??t.scale??1,n=t.scaleY??t.scale??1;if(!r){r=this.getAutoMappingTo(e)}let a={buffer:this.pixelBuffer,width:this.width,height:this.height,bytesPerPixel:this.channelDef.bytesPerPixel,x:Math.max(0,-((+t.x||0)/i+(+t.innerX||0))),y:Math.max(0,-((+t.y||0)/n+(+t.innerY||0))),endX:this.width,endY:this.height,channels:this.channelDef.channels.length,scaleX:i,scaleY:n,mapping:r,compositing:t.compositing||null};let o={buffer:e.pixelBuffer,width:e.width,height:e.height,bytesPerPixel:e.channelDef.bytesPerPixel,x:Math.max(0,(+t.x||0)+(+t.innerX||0)*i),y:Math.max(0,(+t.y||0)+(+t.innerY||0)*n),endX:e.width,endY:e.height,channels:e.channelDef.channels.length};if(a.compositing){if(this.channelDef.indexed){if(e.channelDef.indexed){if(!this.hasSamePalette(e)){throw new Error("Uncompatible palettes are not supported yet")}a.palette=this.channelDef.palette;if(a.compositing.id==="binaryOver"&&this.channelDef.channelIndex.alpha!==undefined){a.alphaChannel=this.channelDef.channelIndex.alpha;h.fullIndexedBlitWithTransparency(a,o)}else{throw new Error("Copy indexed to indexed with compositing is not supported yet, except for 'binaryOver' mode")}}else{a.palette=this.channelDef.palette;h.compositingBlitFromIndexed(a,o)}}else{if(e.channelDef.indexed){throw new Error("Copy to indexed portable image is not supported yet")}h.compositingBlit(a,o)}}else{if(this.channelDef.indexed){if(e.channelDef.indexed){if(!this.hasSamePalette(e)){throw new Error("Uncompatible palettes are not supported yet")}a.mapping=f.Mapping.INDEXED_TO_INDEXED;h.blit(a,o)}else{a.palette=this.channelDef.palette;h.blitFromIndexed(a,o)}}else{if(e.channelDef.indexed){throw new Error("Copy to indexed portable image is not supported yet")}h.blit(a,o)}}};h.prototype.prepareImageData=function(e={}){var t=e.scaleX??e.scale??1,r=e.scaleY??e.scale??1;return new ImageData(this.width*t,this.height*r)};h.prototype.createImageData=function(e={}){var t=this.prepareImageData(e);this.updateImageData(t,e,true);return t};h.prototype.updateImageData=function(e,t={},r=false){var i=t.mapping,n=t.scaleX??t.scale??1,a=t.scaleY??t.scale??1;if(!r){e.data.fill(0)}if(!i){if(e.width===this.width&&e.height===this.height&&!t.x&&!t.y&&n===1&&a===1){if(this.channelDef.indexed){if(this.channelDef.isRgbaCompatible){return this.isoIndexedRgbaCompatibleToRgbaBlit(e.data)}if(this.channelDef.isRgbCompatible){return this.isoIndexedRgbCompatibleToRgbaBlit(e.data)}}else{if(this.channelDef.isRgbaCompatible){return this.isoRgbaCompatibleToRgbaBlit(e.data)}if(this.channelDef.isRgbCompatible){return this.isoRgbCompatibleToRgbaBlit(e.data)}}}if(this.channelDef.isRgbaCompatible){i=f.Mapping.RGBA_COMPATIBLE_TO_RGBA}else if(this.channelDef.isRgbCompatible){i=f.Mapping.RGB_COMPATIBLE_TO_RGBA}else if(this.channelDef.isGrayAlphaCompatible){i=f.Mapping.GRAY_ALPHA_COMPATIBLE_TO_RGBA}else if(this.channelDef.isGrayCompatible){i=f.Mapping.GRAY_COMPATIBLE_TO_RGBA}else{throw new Error("Mapping required for image that are not RGB/RGBA/Grayscale/Grayscale+Alpha compatible")}}let o={buffer:this.pixelBuffer,width:this.width,height:this.height,bytesPerPixel:this.channelDef.bytesPerPixel,x:Math.max(0,-((+t.x||0)/n+(+t.innerX||0))),y:Math.max(0,-((+t.y||0)/a+(+t.innerY||0))),endX:this.width,endY:this.height,channels:this.channelDef.channels.length,scaleX:n,scaleY:a,mapping:i,compositing:t.compositing||null};let s={buffer:e.data,width:e.width,height:e.height,bytesPerPixel:4,x:Math.max(0,(+t.x||0)+(+t.innerX||0)*n),y:Math.max(0,(+t.y||0)+(+t.innerY||0)*a),endX:e.width,endY:e.height,channels:4};if(o.compositing){if(this.channelDef.indexed){o.palette=this.channelDef.palette;h.compositingBlitFromIndexed(o,s)}else{h.compositingBlit(o,s)}}else{if(this.channelDef.indexed){o.palette=this.channelDef.palette;h.blitFromIndexed(o,s)}else{h.blit(o,s)}}};h.blit=function(n,a){var e=Math.min(a.endX-a.x,(n.endX-n.x)*n.scaleX),t=Math.min(a.endY-a.y,(n.endY-n.y)*n.scaleY);for(let i=0;i<t;i++){for(let r=0;r<e;r++){let e=((a.y+i)*a.width+(a.x+r))*a.bytesPerPixel;let t=(Math.floor(n.y+i/n.scaleY)*n.width+Math.floor(n.x+r/n.scaleX))*n.bytesPerPixel;n.mapping.map(n,a,t,e)}}};h.blitFromIndexed=function(a,o){var e=Math.min(o.endX-o.x,(a.endX-a.x)*a.scaleX),t=Math.min(o.endY-o.y,(a.endY-a.y)*a.scaleY);for(let n=0;n<t;n++){for(let i=0;i<e;i++){let e=((o.y+n)*o.width+(o.x+i))*o.bytesPerPixel;let t=(Math.floor(a.y+n/a.scaleY)*a.width+Math.floor(a.x+i/a.scaleX))*a.bytesPerPixel;let r=a.palette[a.buffer[t]];a.mapping.map(a,o,0,e,r)}}};h.compositingBlit=function(n,a){var e=Math.min(a.endX-a.x,(n.endX-n.x)*n.scaleX),t=Math.min(a.endY-a.y,(n.endY-n.y)*n.scaleY);for(let i=0;i<t;i++){for(let r=0;r<e;r++){let e=((a.y+i)*a.width+(a.x+r))*a.bytesPerPixel;let t=(Math.floor(n.y+i/n.scaleY)*n.width+Math.floor(n.x+r/n.scaleX))*n.bytesPerPixel;n.mapping.compose(n,a,t,e,n.compositing)}}};h.compositingBlitFromIndexed=function(a,o){var e=Math.min(o.endX-o.x,(a.endX-a.x)*a.scaleX),t=Math.min(o.endY-o.y,(a.endY-a.y)*a.scaleY);for(let n=0;n<t;n++){for(let i=0;i<e;i++){let e=((o.y+n)*o.width+(o.x+i))*o.bytesPerPixel;let t=(Math.floor(a.y+n/a.scaleY)*a.width+Math.floor(a.x+i/a.scaleX))*a.bytesPerPixel;let r=a.palette[a.buffer[t]];a.mapping.compose(a,o,0,e,a.compositing,r)}}};h.fullIndexedBlitWithTransparency=function(n,a){var e=Math.min(a.endX-a.x,(n.endX-n.x)*n.scaleX),t=Math.min(a.endY-a.y,(n.endY-n.y)*n.scaleY);for(let i=0;i<t;i++){for(let r=0;r<e;r++){let e=((a.y+i)*a.width+(a.x+r))*a.bytesPerPixel;let t=(Math.floor(n.y+i/n.scaleY)*n.width+Math.floor(n.x+r/n.scaleX))*n.bytesPerPixel;if(n.palette[n.buffer[t]][n.alphaChannel]){a.buffer[e]=n.buffer[t]}}}};h.prototype.isoRgbCompatibleToRgbaBlit=function(i){for(let r=0,e=this.width*this.height;r<e;r++){let e=r*this.channelDef.bytesPerPixel;let t=r*4;i[t]=this.pixelBuffer[e];i[t+1]=this.pixelBuffer[e+1];i[t+2]=this.pixelBuffer[e+2];i[t+3]=255}};h.prototype.isoRgbaCompatibleToRgbaBlit=function(i){for(let r=0,e=this.width*this.height;r<e;r++){let e=r*this.channelDef.bytesPerPixel;let t=r*4;i[t]=this.pixelBuffer[e];i[t+1]=this.pixelBuffer[e+1];i[t+2]=this.pixelBuffer[e+2];i[t+3]=this.pixelBuffer[e+3]}};h.prototype.isoIndexedRgbCompatibleToRgbaBlit=function(n){for(let i=0,e=this.width*this.height;i<e;i++){let e=i*this.channelDef.bytesPerPixel;let t=i*4;let r=this.channelDef.palette[this.pixelBuffer[e]];n[t]=r[0];n[t+1]=r[1];n[t+2]=r[2];n[t+3]=255}};h.prototype.isoIndexedRgbaCompatibleToRgbaBlit=function(n){for(let i=0,e=this.width*this.height;i<e;i++){let e=i*this.channelDef.bytesPerPixel;let t=i*4;let r=this.channelDef.palette[this.pixelBuffer[e]];n[t]=r[0];n[t+1]=r[1];n[t+2]=r[2];n[t+3]=r[3]}};h.prototype.updateFromImageData=function(e,t){throw new Error("Not coded!")}}).call(this)}).call(this,e("buffer").Buffer)},{"./ChannelDef.js":4,"./compositing.js":10,buffer:13}],7:[function(e,t,r){"use strict";function i(e,t={}){this.name=e||"";this.visible=t.visible??true;this.compositing=t.compositing??null;this.opacity=t.opacity??1;this.order=t.order??0}t.exports=i},{}],8:[function(e,t,r){"use strict";function i(e,t){this.matrix=e;this.alphaChannelDst=t??null;this.composeChannelOrder=null;if(this.alphaChannelDst===null){this.compose=this.map}else{this.composeChannelOrder=[this.alphaChannelDst];for(let e=0;e<this.dstChannels;e++){if(e!==this.alphaChannelDst){this.composeChannelOrder.push(e)}}}}i.prototype.map=function(){};i.prototype.compose=function(){};t.exports=i;function s(e){return Math.max(0,Math.min(255,Math.round(e)))}function l(e){return Math.max(0,Math.min(255,Math.round(255*e)))}function u(e){return Math.max(0,Math.min(1,e/255))}const p={alpha:e=>e,channel:(e,t,r)=>r};function n(e,t){this.dstChannels=e.length;i.call(this,e,t)}n.prototype=Object.create(i.prototype);n.prototype.constructor=n;i.DirectChannelMapping=n;n.prototype.map=function(e,t,r,i,n=e.buffer){for(let e=0;e<t.channels;e++){t.buffer[i+e]=n[r+this.matrix[e]]}};n.prototype.compose=function(e,t,r,i,n=p,a=e.buffer){let o=t.buffer[i+this.alphaChannelDst]/255;let s=1;for(let e of this.composeChannelOrder){if(e===this.alphaChannelDst){s=a[r+this.matrix[e]]/255;t.buffer[i+e]=l(n.alpha(s,o))}else{t.buffer[i+e]=l(n.channel(s,o,a[r+this.matrix[e]]/255,t.buffer[i+e]/255))}}};function a(e,t){this.dstChannels=Math.floor(e.length/2);i.call(this,e,t)}a.prototype=Object.create(i.prototype);a.prototype.constructor=a;i.DirectChannelMappingWithDefault=a;a.prototype.map=function(e,t,r,i,n=e.buffer){for(let e=0;e<t.channels;e++){t.buffer[i+e]=this.matrix[e*2+1]??n[r+this.matrix[e*2]]}};a.prototype.compose=function(e,t,r,i,n=p,a=e.buffer){let o=t.buffer[i+this.alphaChannelDst]/255;let s=1;for(let e of this.composeChannelOrder){if(e===this.alphaChannelDst){s=(this.matrix[e*2+1]??a[r+this.matrix[e*2]])/255;t.buffer[i+e]=l(n.alpha(s,o))}else{t.buffer[i+e]=l(n.channel(s,o,(this.matrix[e*2+1]??a[r+this.matrix[e*2]])/255,t.buffer[i+e]/255))}}};function o(e,t,r){this.dstChannels=Math.floor(e.length/(t+1));this.srcChannelsUsed=t;i.call(this,e,r)}o.prototype=Object.create(i.prototype);o.prototype.constructor=o;i.MatrixChannelMapping=o;o.prototype.map=function(e,r,i,n,a=e.buffer){let o=0;for(let e=0;e<r.channels;e++){let t=0;for(let 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