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@ -170,10 +170,10 @@ var Page = (function PageClosure() { |
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return shadow(this, 'rotate', rotate); |
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return shadow(this, 'rotate', rotate); |
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}, |
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}, |
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startRenderingFromIRQueue: function pageStartRenderingFromIRQueue( |
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startRenderingFromOperatorList: function pageStartRenderingFromOperatorList( |
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IRQueue, fonts) { |
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operatorList, fonts) { |
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var self = this; |
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var self = this; |
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this.IRQueue = IRQueue; |
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this.operatorList = operatorList; |
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var displayContinuation = function pageDisplayContinuation() { |
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var displayContinuation = function pageDisplayContinuation() { |
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// Always defer call to display() to work around bug in
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// Always defer call to display() to work around bug in
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@ -184,15 +184,16 @@ var Page = (function PageClosure() { |
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}; |
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}; |
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this.ensureFonts(fonts, |
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this.ensureFonts(fonts, |
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function pageStartRenderingFromIRQueueEnsureFonts() { |
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function pageStartRenderingFromOperatorListEnsureFonts() { |
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displayContinuation(); |
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displayContinuation(); |
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}); |
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} |
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); |
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}, |
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}, |
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getIRQueue: function pageGetIRQueue(handler, dependency) { |
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getOperatorList: function pageGetOperatorList(handler, dependency) { |
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if (this.IRQueue) { |
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if (this.operatorList) { |
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// content was compiled
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// content was compiled
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return this.IRQueue; |
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return this.operatorList; |
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} |
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} |
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this.stats.time('Build IR Queue'); |
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this.stats.time('Build IR Queue'); |
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@ -213,11 +214,10 @@ var Page = (function PageClosure() { |
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var pe = this.pe = new PartialEvaluator( |
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var pe = this.pe = new PartialEvaluator( |
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xref, handler, 'p' + this.pageNumber + '_'); |
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xref, handler, 'p' + this.pageNumber + '_'); |
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var IRQueue = {}; |
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this.IRQueue = pe.getIRQueue(content, resources, IRQueue, dependency); |
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this.operatorList = pe.getOperatorList(content, resources, dependency); |
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this.stats.timeEnd('Build IR Queue'); |
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this.stats.timeEnd('Build IR Queue'); |
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return this.IRQueue; |
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return this.operatorList; |
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}, |
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}, |
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ensureFonts: function pageEnsureFonts(fonts, callback) { |
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ensureFonts: function pageEnsureFonts(fonts, callback) { |
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@ -228,14 +228,13 @@ var Page = (function PageClosure() { |
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} |
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} |
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// Load all the fonts
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// Load all the fonts
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var fontObjs = FontLoader.bind( |
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FontLoader.bind( |
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fonts, |
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fonts, |
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function pageEnsureFontsFontObjs(fontObjs) { |
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function pageEnsureFontsFontObjs(fontObjs) { |
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this.stats.timeEnd('Font Loading'); |
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this.stats.timeEnd('Font Loading'); |
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callback.call(this); |
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callback.call(this); |
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}.bind(this), |
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}.bind(this) |
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this.objs |
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); |
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); |
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}, |
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}, |
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@ -255,18 +254,19 @@ var Page = (function PageClosure() { |
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rotate: this.rotate }); |
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rotate: this.rotate }); |
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var startIdx = 0; |
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var startIdx = 0; |
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var length = this.IRQueue.fnArray.length; |
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var length = this.operatorList.fnArray.length; |
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var IRQueue = this.IRQueue; |
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var operatorList = this.operatorList; |
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var stepper = null; |
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var stepper = null; |
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if (PDFJS.pdfBug && StepperManager.enabled) { |
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if (PDFJS.pdfBug && StepperManager.enabled) { |
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stepper = StepperManager.create(this.pageNumber); |
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stepper = StepperManager.create(this.pageNumber); |
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stepper.init(IRQueue); |
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stepper.init(operatorList); |
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stepper.nextBreakPoint = stepper.getNextBreakPoint(); |
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stepper.nextBreakPoint = stepper.getNextBreakPoint(); |
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} |
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} |
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var self = this; |
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var self = this; |
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function next() { |
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function next() { |
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startIdx = gfx.executeIRQueue(IRQueue, startIdx, next, stepper); |
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startIdx = |
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gfx.executeOperatorList(operatorList, startIdx, next, stepper); |
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if (startIdx == length) { |
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if (startIdx == length) { |
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gfx.endDrawing(); |
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gfx.endDrawing(); |
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stats.timeEnd('Rendering'); |
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stats.timeEnd('Rendering'); |
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@ -436,13 +436,14 @@ var Page = (function PageClosure() { |
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startRendering: function pageStartRendering(ctx, callback, textLayer) { |
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startRendering: function pageStartRendering(ctx, callback, textLayer) { |
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var stats = this.stats; |
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var stats = this.stats; |
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stats.time('Overall'); |
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stats.time('Overall'); |
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// If there is no displayReadyPromise yet, then the IRQueue was never
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// If there is no displayReadyPromise yet, then the operatorList was never
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// requested before. Make the request and create the promise.
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// requested before. Make the request and create the promise.
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if (!this.displayReadyPromise) { |
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if (!this.displayReadyPromise) { |
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this.pdf.startRendering(this); |
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this.pdf.startRendering(this); |
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this.displayReadyPromise = new Promise(); |
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this.displayReadyPromise = new Promise(); |
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} |
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} |
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// Once the IRQueue and fonts are loaded, perform the actual rendering.
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// Once the operatorList and fonts are loaded, do the actual rendering.
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this.displayReadyPromise.then( |
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this.displayReadyPromise.then( |
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function pageDisplayReadyPromise() { |
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function pageDisplayReadyPromise() { |
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var gfx = new CanvasGraphics(ctx, this.objs, textLayer); |
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var gfx = new CanvasGraphics(ctx, this.objs, textLayer); |
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@ -474,9 +475,6 @@ var Page = (function PageClosure() { |
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* Right now there exists one PDFDocModel on the main thread + one object |
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* Right now there exists one PDFDocModel on the main thread + one object |
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* for each worker. If there is no worker support enabled, there are two |
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* for each worker. If there is no worker support enabled, there are two |
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* `PDFDocModel` objects on the main thread created. |
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* `PDFDocModel` objects on the main thread created. |
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* TODO: Refactor the internal object structure, such that there is no |
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* need for the `PDFDocModel` anymore and there is only one object on the |
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* main thread and not one entire copy on each worker instance. |
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*/ |
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*/ |
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var PDFDocModel = (function PDFDocModelClosure() { |
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var PDFDocModel = (function PDFDocModelClosure() { |
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function PDFDocModel(arg, callback) { |
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function PDFDocModel(arg, callback) { |
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@ -645,9 +643,9 @@ var PDFDoc = (function PDFDocClosure() { |
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this.data = data; |
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this.data = data; |
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this.stream = stream; |
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this.stream = stream; |
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this.pdf = new PDFDocModel(stream); |
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this.pdfModel = new PDFDocModel(stream); |
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this.fingerprint = this.pdf.getFingerprint(); |
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this.fingerprint = this.pdfModel.getFingerprint(); |
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this.catalog = this.pdf.catalog; |
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this.catalog = this.pdfModel.catalog; |
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this.objs = new PDFObjects(); |
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this.objs = new PDFObjects(); |
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this.pageCache = []; |
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this.pageCache = []; |
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@ -733,8 +731,9 @@ var PDFDoc = (function PDFDocClosure() { |
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var pageNum = data.pageNum; |
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var pageNum = data.pageNum; |
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var page = this.pageCache[pageNum]; |
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var page = this.pageCache[pageNum]; |
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var depFonts = data.depFonts; |
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var depFonts = data.depFonts; |
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page.stats.timeEnd('Page Request'); |
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page.stats.timeEnd('Page Request'); |
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page.startRenderingFromIRQueue(data.IRQueue, depFonts); |
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page.startRenderingFromOperatorList(data.operatorList, depFonts); |
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}, this); |
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}, this); |
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messageHandler.on('obj', function pdfDocObj(data) { |
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messageHandler.on('obj', function pdfDocObj(data) { |
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@ -761,31 +760,16 @@ var PDFDoc = (function PDFDocClosure() { |
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file = new Stream(file, 0, file.length, fontFileDict); |
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file = new Stream(file, 0, file.length, fontFileDict); |
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} |
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} |
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// For now, resolve the font object here direclty. The real font
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// At this point, only the font object is created but the font is
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// object is then created in FontLoader.bind().
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// not yet attached to the DOM. This is done in `FontLoader.bind`.
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this.objs.resolve(id, { |
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var font = new Font(name, file, properties); |
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name: name, |
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this.objs.resolve(id, font); |
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file: file, |
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properties: properties |
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}); |
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break; |
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break; |
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default: |
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default: |
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error('Got unkown object type ' + type); |
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error('Got unkown object type ' + type); |
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} |
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} |
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}, this); |
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}, this); |
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messageHandler.on('font_ready', function pdfDocFontReady(data) { |
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var id = data[0]; |
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var font = new FontShape(data[1]); |
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// If there is no string, then there is nothing to attach to the DOM.
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if (!font.str) { |
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this.objs.resolve(id, font); |
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} else { |
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this.objs.setData(id, font); |
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} |
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}.bind(this)); |
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messageHandler.on('page_error', function pdfDocError(data) { |
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messageHandler.on('page_error', function pdfDocError(data) { |
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var page = this.pageCache[data.pageNum]; |
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var page = this.pageCache[data.pageNum]; |
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if (page.displayReadyPromise) |
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if (page.displayReadyPromise) |
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@ -807,7 +791,7 @@ var PDFDoc = (function PDFDocClosure() { |
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var size = width * height; |
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var size = width * height; |
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var rgbaLength = size * 4; |
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var rgbaLength = size * 4; |
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var buf = new Uint8Array(size * components); |
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var buf = new Uint8Array(size * components); |
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var tmpCanvas = new ScratchCanvas(width, height); |
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var tmpCanvas = createScratchCanvas(width, height); |
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var tmpCtx = tmpCanvas.getContext('2d'); |
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var tmpCtx = tmpCanvas.getContext('2d'); |
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tmpCtx.drawImage(img, 0, 0); |
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tmpCtx.drawImage(img, 0, 0); |
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var data = tmpCtx.getImageData(0, 0, width, height).data; |
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var data = tmpCtx.getImageData(0, 0, width, height).data; |
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@ -836,7 +820,7 @@ var PDFDoc = (function PDFDocClosure() { |
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}, |
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}, |
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get numPages() { |
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get numPages() { |
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return this.pdf.numPages; |
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return this.pdfModel.numPages; |
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}, |
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}, |
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startRendering: function pdfDocStartRendering(page) { |
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startRendering: function pdfDocStartRendering(page) { |
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@ -851,7 +835,7 @@ var PDFDoc = (function PDFDocClosure() { |
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if (this.pageCache[n]) |
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if (this.pageCache[n]) |
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return this.pageCache[n]; |
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return this.pageCache[n]; |
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var page = this.pdf.getPage(n); |
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var page = this.pdfModel.getPage(n); |
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// Add a reference to the objects such that Page can forward the reference
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// Add a reference to the objects such that Page can forward the reference
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// to the CanvasGraphics and so on.
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// to the CanvasGraphics and so on.
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page.objs = this.objs; |
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page.objs = this.objs; |
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Brendan Dahl
13 years ago