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Refactors to remove stream.js dependency on colorspace.js

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This commit is contained in:
Yury Delendik 2016-04-01 07:36:16 -05:00
parent df7afcf004
commit 35cbf74b12
4 changed files with 68 additions and 62 deletions
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29
src/core/stream.js
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@ -43,9 +43,6 @@ var Jbig2Image = coreJbig2.Jbig2Image;
var JpegImage = coreJpg.JpegImage;
var JpxImage = coreJpx.JpxImage;
var coreColorSpace; // see _setCoreColorSpace below
var ColorSpace; // = coreColorSpace.ColorSpace;
var Stream = (function StreamClosure() {
function Stream(arrayBuffer, start, length, dict) {
this.bytes = (arrayBuffer instanceof Uint8Array ?
@ -962,25 +959,6 @@ var JpegStream = (function JpegStreamClosure() {
JpegStream.prototype.getIR = function JpegStream_getIR(forceDataSchema) {
return createObjectURL(this.bytes, 'image/jpeg', forceDataSchema);
};
/**
* Checks if the image can be decoded and displayed by the browser without any
* further processing such as color space conversions.
*/
JpegStream.prototype.isNativelySupported =
function JpegStream_isNativelySupported(xref, res) {
var cs = ColorSpace.parse(this.dict.get('ColorSpace', 'CS'), xref, res);
return (cs.name === 'DeviceGray' || cs.name === 'DeviceRGB') &&
cs.isDefaultDecode(this.dict.get('Decode', 'D'));
};
/**
* Checks if the image can be decoded by the browser.
*/
JpegStream.prototype.isNativelyDecodable =
function JpegStream_isNativelyDecodable(xref, res) {
var cs = ColorSpace.parse(this.dict.get('ColorSpace', 'CS'), xref, res);
return (cs.numComps === 1 || cs.numComps === 3) &&
cs.isDefaultDecode(this.dict.get('Decode', 'D'));
};
return JpegStream;
})();
@ -2500,13 +2478,6 @@ var NullStream = (function NullStreamClosure() {
return NullStream;
})();
// TODO refactor to remove dependency on colorspace.js
function _setCoreColorSpace(coreColorSpace_) {
coreColorSpace = coreColorSpace_;
ColorSpace = coreColorSpace_.ColorSpace;
}
exports._setCoreColorSpace = _setCoreColorSpace;
exports.Ascii85Stream = Ascii85Stream;
exports.AsciiHexStream = AsciiHexStream;
exports.CCITTFaxStream = CCITTFaxStream;