Tilman Hausherr created PDFBOX-6157:
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Summary: Fix original Bitmaps.blit() code
Key: PDFBOX-6157
URL: https://issues.apache.org/jira/browse/PDFBOX-6157
Project: PDFBox
Issue Type: Task
Components: JBIG2
Affects Versions: 3.0.4 JBIG2
Reporter: Tilman Hausherr
Follow-up to PDFBOX-6151, which was fixed with a correct but not very efficient
solution. The original code should be fixed so that the last bits of a byte are
handled without touching the other bits of the destination.
How to test this: use the test code from PDFBOX-6151 include the file
mentioned. To see intermediate images, save the bitmaps {{regionBitmap}} and
{{pageBitmap}} in JBIG2Page.createNormalPage() with a call like this near
{{Bitmaps.blit()}}:
{code:java}
ImageIO.write(Bitmaps.asBufferedImage(pageBitmap), "png", new
File("XXXX","JPeg2PageResultBitmap-" + System.currentTimeMillis() + ".png"));
{code}
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