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Use Stream instead of byte array access

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fkaelberer 2014-04-06 12:08:04 +02:00
parent 1ccc8a64b7
commit 2982de8f33
2 changed files with 26 additions and 22 deletions
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24
src/core/image.js
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@ -52,17 +52,19 @@ var PDFImage = (function PDFImageClosure() {
function PDFImage(xref, res, image, inline, smask, mask, isMask) {
this.image = image;
var dict = image.dict;
if (dict.get('Filter').name === 'JPXDecode') {
info('get image params from JPX stream');
var jpxImage = new JpxImage();
var data = image.stream.bytes;
jpxImage.parseImageProperties(data, 0, data.length);
image.bitsPerComponent = jpxImage.bitsPerComponent;
image.numComps = jpxImage.componentsCount;
}
if (dict.get('Filter').name === 'JBIG2Decode') {
image.bitsPerComponent = 1;
image.numComps = 1;
if (dict.has('Filter')) {
var filter = dict.get('Filter').name;
if (filter === 'JPXDecode') {
info('get image params from JPX stream');
var jpxImage = new JpxImage();
jpxImage.parseImageProperties(image.stream);
image.stream.reset();
image.bitsPerComponent = jpxImage.bitsPerComponent;
image.numComps = jpxImage.componentsCount;
} else if (filter === 'JBIG2Decode') {
image.bitsPerComponent = 1;
image.numComps = 1;
}
}
// TODO cache rendered images?