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Uses postMessage transfers

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Yury Delendik 2013-11-11 21:30:26 -06:00 • committed by Yury
parent 945e370d4f
commit 4ce6cb8b0f
6 changed files with 95 additions and 12 deletions
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27
src/core/evaluator.js
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@ -301,7 +301,8 @@ var PartialEvaluator = (function PartialEvaluatorClosure() {
PDFImage.buildImage(function(imageObj) {
var imgData = imageObj.getImageData();
self.handler.send('obj', [objId, self.pageIndex, 'Image', imgData]);
self.handler.send('obj', [objId, self.pageIndex, 'Image', imgData],
null, [imgData.data.buffer]);
}, self.handler, self.xref, resources, image, inline);
operatorList.addOp(OPS.paintImageXObject, args);
@ -1457,14 +1458,30 @@ var PartialEvaluator = (function PartialEvaluatorClosure() {
}
};
return PartialEvaluator;
})();
var OperatorList = (function OperatorListClosure() {
var CHUNK_SIZE = 100;
function OperatorList(messageHandler, pageIndex) {
function getTransfers(queue) {
var transfers = [];
var fnArray = queue.fnArray, argsArray = queue.argsArray;
for (var i = 0, ii = queue.length; i < ii; i++) {
switch (fnArray[i]) {
case OPS.paintInlineImageXObject:
case OPS.paintInlineImageXObjectGroup:
case OPS.paintImageMaskXObject:
var arg = argsArray[i][0]; // first param in imgData
transfers.push(arg.data.buffer);
break;
}
}
return transfers;
}
function OperatorList(messageHandler, pageIndex) {
this.messageHandler = messageHandler;
// When there isn't a message handler the fn array needs to be able to grow
// since we can't flush the operators.
@ -1529,6 +1546,7 @@ var OperatorList = (function OperatorListClosure() {
flush: function(lastChunk) {
PartialEvaluator.optimizeQueue(this);
var transfers = getTransfers(this);
this.messageHandler.send('RenderPageChunk', {
operatorList: {
fnArray: this.fnArray,
@ -1537,7 +1555,7 @@ var OperatorList = (function OperatorListClosure() {
length: this.length
},
pageIndex: this.pageIndex
});
}, null, transfers);
this.dependencies = [];
this.fnIndex = 0;
this.argsArray = [];
@ -1546,6 +1564,7 @@ var OperatorList = (function OperatorListClosure() {
return OperatorList;
})();
var TextState = (function TextStateClosure() {
function TextState() {
this.fontSize = 0;