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fix(svg) adjust strategy for decoding JPEG images

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巴里切罗 2017-05-08 11:32:44 +08:00
parent 0dbc68a6d6
commit 8d5d97264e
9 changed files with 66 additions and 15 deletions
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9
src/core/evaluator.js
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@ -52,6 +52,7 @@ var IDENTITY_MATRIX = sharedUtil.IDENTITY_MATRIX;
var UNSUPPORTED_FEATURES = sharedUtil.UNSUPPORTED_FEATURES;
var ImageKind = sharedUtil.ImageKind;
var OPS = sharedUtil.OPS;
var NativeImageDecoding = sharedUtil.NativeImageDecoding;
var TextRenderingMode = sharedUtil.TextRenderingMode;
var CMapCompressionType = sharedUtil.CMapCompressionType;
var Util = sharedUtil.Util;
@ -113,7 +114,7 @@ var PartialEvaluator = (function PartialEvaluatorClosure() {
forceDataSchema: false,
maxImageSize: -1,
disableFontFace: false,
disableNativeImageDecoder: false,
nativeImageDecoderSupport: NativeImageDecoding.DECODE,
ignoreErrors: false,
};
@ -461,14 +462,14 @@ var PartialEvaluator = (function PartialEvaluatorClosure() {
return;
}
var useNativeImageDecoder = !this.options.disableNativeImageDecoder;
var nativeImageDecoderSupport = this.options.nativeImageDecoderSupport;
// If there is no imageMask, create the PDFImage and a lot
// of image processing can be done here.
var objId = 'img_' + this.idFactory.createObjId();
operatorList.addDependency(objId);
args = [objId, w, h];
if (useNativeImageDecoder &&
if (nativeImageDecoderSupport !== NativeImageDecoding.NONE &&
!softMask && !mask && image instanceof JpegStream &&
NativeImageDecoder.isSupported(image, this.xref, resources)) {
// These JPEGs don't need any more processing so we can just send it.
@ -481,7 +482,7 @@ var PartialEvaluator = (function PartialEvaluatorClosure() {
// Creates native image decoder only if a JPEG image or mask is present.
var nativeImageDecoder = null;
if (useNativeImageDecoder &&
if (nativeImageDecoderSupport === NativeImageDecoding.DECODE &&
(image instanceof JpegStream || mask instanceof JpegStream ||
softMask instanceof JpegStream)) {
nativeImageDecoder = new NativeImageDecoder(this.xref, resources,