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Handle device gray and pass in the color transform option.

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This commit is contained in:
Brendan Dahl 2011-11-09 09:29:33 -08:00
parent 493805d952
commit 073af78307
1 changed files with 10 additions and 5 deletions
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15
src/stream.js
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@ -797,16 +797,21 @@ var JpegStream = (function jpegStream() {
// Flag indicating wether the image can be natively loaded. // Flag indicating wether the image can be natively loaded.
this.isNative = true; this.isNative = true;
this.colorTransform = -1;
if (isAdobeImage(bytes)) { if (isAdobeImage(bytes)) {
// when bug 674619 land, let's check if browser can do // when bug 674619 land, let's check if browser can do
// normal cmyk and then we won't have to the following // normal cmyk and then we won't have to the following
var cs = xref.fetchIfRef(dict.get('ColorSpace')); var cs = xref.fetchIfRef(dict.get('ColorSpace'));
if (isName(cs) && cs.name === 'DeviceCMYK') {
this.isNative = false; // DeviceRGB and DeviceGray are the only Adobe images that work natively
this.bytes = bytes; if (isName(cs) && (cs.name === 'DeviceRGB' || cs.name === 'DeviceGray')) {
} else {
bytes = fixAdobeImage(bytes); bytes = fixAdobeImage(bytes);
this.src = bytesToString(bytes); this.src = bytesToString(bytes);
} else {
this.colorTransform = dict.get('ColorTransform');
this.isNative = false;
this.bytes = bytes;
} }
} else { } else {
this.src = bytesToString(bytes); this.src = bytesToString(bytes);
@ -820,7 +825,7 @@ var JpegStream = (function jpegStream() {
constructor.prototype.ensureBuffer = function jpegStreamEnsureBuffer(req) { constructor.prototype.ensureBuffer = function jpegStreamEnsureBuffer(req) {
if (this.bufferLength) if (this.bufferLength)
return; return;
var jpegImage = new JpegImage(); var jpegImage = new JpegImage(this.colorTransform);
jpegImage.parse(this.bytes); jpegImage.parse(this.bytes);
var width = jpegImage.width; var width = jpegImage.width;
var height = jpegImage.height; var height = jpegImage.height;