yetangitu/pdf.js
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Merge pull request #4181 from nnethercote/compact-images

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Reduce memory consumption of simple black and white images.
This commit is contained in:
Yury Delendik 2014-01-28 15:53:46 -08:00
commit c5a804c43a
3 changed files with 110 additions and 53 deletions
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7
src/core/evaluator.js
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@ -166,7 +166,7 @@ var PartialEvaluator = (function PartialEvaluatorClosure() {
(w + h) < SMALL_IMAGE_DIMENSIONS) {
var imageObj = new PDFImage(this.xref, resources, image,
inline, null, null);
var imgData = imageObj.getImageData();
var imgData = imageObj.createImageData();
operatorList.addOp(OPS.paintInlineImageXObject, [imgData]);
return;
}
@ -189,7 +189,7 @@ var PartialEvaluator = (function PartialEvaluatorClosure() {
PDFImage.buildImage(function(imageObj) {
var imgData = imageObj.getImageData();
var imgData = imageObj.createImageData();
self.handler.send('obj', [objId, self.pageIndex, 'Image', imgData],
null, [imgData.data.buffer]);
}, self.handler, self.xref, resources, image, inline);
@ -1318,7 +1318,8 @@ var PartialEvaluator = (function PartialEvaluatorClosure() {
// replacing queue items
squash(fnArray, j, count * 4, OPS.paintInlineImageXObjectGroup);
argsArray.splice(j, count * 4,
[{width: imgWidth, height: imgHeight, data: imgData}, map]);
[{width: imgWidth, height: imgHeight, kind: 'rgba_32bpp',
data: imgData}, map]);
i = j;
ii = argsArray.length;
}