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Merge pull request #857 from jviereck/hotcmds

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Only check execution time on some commands
This commit is contained in:
Brendan Dahl 2011-12-05 10:43:03 -08:00
commit 3b112edd91
1 changed files with 38 additions and 4 deletions
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42
src/canvas.js
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@ -195,6 +195,35 @@ var CanvasGraphics = (function canvasGraphics() {
var EO_CLIP = {}; var EO_CLIP = {};
constructor.prototype = { constructor.prototype = {
slowCommands: {
'stroke': true,
'closeStroke': true,
'fill': true,
'eoFill': true,
'fillStroke': true,
'eoFillStroke': true,
'closeFillStroke': true,
'closeEOFillStroke': true,
'showText': true,
'showSpacedText': true,
'setStrokeColorSpace': true,
'setFillColorSpace': true,
'setStrokeColor': true,
'setStrokeColorN': true,
'setFillColor': true,
'setFillColorN_IR': true,
'setStrokeGray': true,
'setFillGray': true,
'setStrokeRGBColor': true,
'setFillRGBColor': true,
'setStrokeCMYKColor': true,
'setFillCMYKColor': true,
'paintJpegXObject': true,
'paintImageXObject': true,
'paintImageMaskXObject': true,
'shadingFill': true
},
beginDrawing: function canvasGraphicsBeginDrawing(mediaBox) { beginDrawing: function canvasGraphicsBeginDrawing(mediaBox) {
var cw = this.ctx.canvas.width, ch = this.ctx.canvas.height; var cw = this.ctx.canvas.width, ch = this.ctx.canvas.height;
this.ctx.save(); this.ctx.save();
@ -234,13 +263,17 @@ var CanvasGraphics = (function canvasGraphics() {
} }
var executionEndIdx; var executionEndIdx;
var startTime = Date.now(); var endTime = Date.now() + kExecutionTime;
var objs = this.objs; var objs = this.objs;
var fnName;
var slowCommands = this.slowCommands;
while (true) { while (true) {
if (fnArray[i] !== 'dependency') { fnName = fnArray[i];
this[fnArray[i]].apply(this, argsArray[i]);
if (fnName !== 'dependency') {
this[fnName].apply(this, argsArray[i]);
} else { } else {
var deps = argsArray[i]; var deps = argsArray[i];
for (var n = 0, nn = deps.length; n < nn; n++) { for (var n = 0, nn = deps.length; n < nn; n++) {
@ -254,6 +287,7 @@ var CanvasGraphics = (function canvasGraphics() {
} }
} }
} }
i++; i++;
// If the entire IRQueue was executed, stop as were done. // If the entire IRQueue was executed, stop as were done.
@ -264,7 +298,7 @@ var CanvasGraphics = (function canvasGraphics() {
// If the execution took longer then a certain amount of time, shedule // If the execution took longer then a certain amount of time, shedule
// to continue exeution after a short delay. // to continue exeution after a short delay.
// However, this is only possible if a 'continueCallback' is passed in. // However, this is only possible if a 'continueCallback' is passed in.
if (continueCallback && (Date.now() - startTime) > kExecutionTime) { if (continueCallback && slowCommands[fnName] && Date.now() > endTime) {
setTimeout(continueCallback, 0); setTimeout(continueCallback, 0);
return i; return i;
} }