First page is rendering using new worker infrastructure
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5a1488df9f
commit
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11
pdf.js
11
pdf.js
@ -3406,7 +3406,7 @@ var Page = (function() {
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var exc = null;
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// try {
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self.display(gfx);
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stats.render = Date.now();
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self.stats.render = Date.now();
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// } catch (e) {
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// exc = e.toString();
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// }
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@ -3416,7 +3416,7 @@ var Page = (function() {
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this.ensureFonts(fonts, function() {
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images.notifyOnLoad(function() {
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stats.images = Date.now();
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self.stats.images = Date.now();
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displayContinuation();
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});
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})
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@ -4294,10 +4294,6 @@ var PartialEvaluator = (function() {
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}
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}
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// Expose arrays for debugging purpose.
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window.fnArray = fnArray;
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window.argsArray = argsArray;
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return {
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fnArray: fnArray,
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argsArray: argsArray
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@ -4791,6 +4787,9 @@ var CanvasGraphics = (function() {
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},
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postCompile: function(raw) {
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if (!this.pe) {
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this.pe = new PartialEvaluator();
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}
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return this.pe.evalFromRaw(raw);
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},
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23
worker.js
23
worker.js
@ -60,16 +60,29 @@ var WorkerPDFDoc = (function() {
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this.pageCache = [];
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this.worker = new Worker("worker/boot.js");
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this.handler = new MessageHandler({
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this.worker = new Worker("../worker/boot.js");
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this.handler = new MessageHandler("main", {
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"page": function(data) {
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var pageNum = data.pageNum;
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var page = this.pageCache[pageNum];
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// Add necessary shape back to fonts.
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var fonts = data.fonts;
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for (var i = 0; i < fonts.length; i++) {
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var font = fonts[i];
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var fontFileDict = new Dict();
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fontFileDict.map = font.file.dict.map;
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var fontFile = new Stream(font.file.bytes, font.file.start,
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font.file.end - font.file.start, fontFileDict);
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font.file = new FlateStream(fontFile);
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}
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console.log("startRenderingFromPreCompilation:", "numberOfFonts", fonts.length);
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page.startRenderingFromPreCompilation(data.preCompilation, data.fonts, data.images);
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}
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}, this.worker.postMessage, this);
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this.worker.onmessage = this.handler.onMessage;
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}, this.worker, this);
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this.handler.send("doc", data);
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}
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@ -80,7 +93,7 @@ var WorkerPDFDoc = (function() {
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},
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startRendering: function(page) {
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this.handler.send("page", page.page.pageNumber);
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this.handler.send("page", page.page.pageNumber + 1);
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},
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getPage: function(n) {
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@ -3,9 +3,8 @@
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'use strict';
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//
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importScripts('console.js');
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importScripts('event_handler.js');
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importScripts('message_handler.js');
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importScripts('../pdf.js');
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importScripts('../fonts.js');
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importScripts('../crypto.js');
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@ -14,9 +13,9 @@ importScripts('../glyphlist.js');
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// Listen for messages from the main thread.
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var pdfDoc = null;
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var handler = new MessageHandler({
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var handler = new MessageHandler("worker", {
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"doc": function(data) {
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pdfDocument = new PDFDoc(new Stream(data));
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pdfDoc = new PDFDoc(new Stream(data));
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console.log("setup pdfDoc");
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},
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@ -24,11 +23,11 @@ var handler = new MessageHandler({
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pageNum = parseInt(pageNum);
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console.log("about to process page", pageNum);
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var page = pdfDocument.getPage(pageNum);
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var page = pdfDoc.getPage(pageNum);
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// The following code does quite the same as Page.prototype.startRendering,
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// but stops at one point and sends the result back to the main thread.
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var gfx = new CanvasGraphics(canvasCtx);
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var gfx = new CanvasGraphics(null);
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var fonts = [];
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// TODO: Figure out how image loading is handled inside the worker.
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var images = new ImagesLoader();
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@ -43,9 +42,9 @@ var handler = new MessageHandler({
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var font = fonts[i];
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fontsMin.push({
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name: orgFont.name,
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file: orgFont.file,
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properties: orgFont.properties
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name: font.name,
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file: font.file,
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properties: font.properties
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});
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}
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@ -58,6 +57,4 @@ var handler = new MessageHandler({
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preCompilation: preCompilation,
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});
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}
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}, postMessage);
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onmessage = handler.onMessage;
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}, this);
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@ -8,7 +8,15 @@ var console = {
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log: function log() {
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var args = Array.prototype.slice.call(arguments);
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postMessage({
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action: 'log',
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action: 'console_log',
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data: args
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});
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},
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error: function error() {
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var args = Array.prototype.slice.call(arguments);
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postMessage({
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action: 'console_error',
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data: args
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});
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},
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@ -4,8 +4,18 @@
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'use strict';
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function MessageHandler(actionHandler, postMessage, scope) {
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this.onMessage = function(event) {
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function MessageHandler(name, actionHandler, comObj, scope) {
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this.name = name;
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actionHandler["console_log"] = function(data) {
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console.log.apply(console, data);
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}
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actionHandler["console_error"] = function(data) {
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console.error.apply(console, data);
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}
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comObj.onmessage = function(event) {
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var data = event.data;
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if (data.action in actionHandler) {
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actionHandler[data.action].call(scope, data.data);
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@ -15,9 +25,14 @@ function MessageHandler(actionHandler, postMessage, scope) {
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};
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this.send = function(actionName, data) {
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postMessage({
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action: actionName,
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data: data
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});
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try {
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comObj.postMessage({
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action: actionName,
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data: data
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});
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} catch (e) {
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console.error("FAILED to send data from", this.name);
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throw e;
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}
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}
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}
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