[FLEX-28882] PNG to DefineBitsJPEG3 will change color(bug in LosslessImageTranscoder)

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: Adobe Flex SDK Previous
• Component/s: .Unspecified - Compiler
• Environment: Affected OS(s): Windows; Affected OS(s): Windows 7; Language Found: English
• Assignee: Unassigned
• Reporter: Adobe JIRA
• Created: 24/Oct/11 22:56
• Updated: 24/Oct/11 22:58

Description

Steps to reproduce:
1.Produce a color picture 0x7F0050FF
2.[Embed(source="test.png", mimeType="image/png", compression="true", quality="100")]
3.Instantiated and getPixel32

Actual Results:
7f0064ff

Expected Results:
7f0030ff

Workaround (if any):

result:
fix bug in class "flex2.compiler.media.LosslessImageTranscoder"

change code in line 82:

int[] pixels = image.getPixels();
for (int i = 0; i < imageSize; ++i)

{ int alpha = (pixels[i] >> 24) & 0xff; int r = (pixels[i] >> 16) & 0xff; int g = (pixels[i] >> 8) & 0xff; int b = pixels[i] & 0xff; r = ((r * alpha) / 0xff) & 0xff; g = ((g * alpha) / 0xff) & 0xff; b = ((b * alpha) / 0xff) & 0xff; pixels[i] = (0xff<<24)|(r<<16)|(g<<8)|b; alphaData[i] = (byte) (alpha); }

BufferedImage bufferedImage = new BufferedImage(image.getWidth(), image.getHeight(), BufferedImage.TYPE_INT_RGB);