Tilman Hausherr created PDFBOX-2111:
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Summary: Cast error in Gouraud shadings
Key: PDFBOX-2111
URL: https://issues.apache.org/jira/browse/PDFBOX-2111
Project: PDFBox
Issue Type: Bug
Components: Rendering
Affects Versions: 1.8.5, 1.8.6, 2.0.0
Reporter: Tilman Hausherr
Assignee: Tilman Hausherr
Fix For: 1.8.6, 2.0.0, 1.8.5
There's a bug in Type4ShadingContext and Type5ShadingContext:
{code}
long maxSrcCoord = (int) Math.pow(2, bitsPerCoordinate) - 1;
long maxSrcColor = (int) Math.pow(2, bitsPerColorComponent) - 1;
{code}
should be
{code}
long maxSrcCoord = (long) (Math.pow(2, bitsPerCoordinate) - 1);
long maxSrcColor = (long) (Math.pow(2, bitsPerColorComponent) - 1);
{code}
The problem is that maxSrcCoord is 7FFFFFFF instead of FFFFFFFF when
bitsPerCoordinate is 32.
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