http://bugs.freedesktop.org/show_bug.cgi?id=10608
Summary: Read incorrect GL_DEPTH_COMPONENT value after call
glCopyPixels with zoom
Product: Mesa
Version: CVS
Platform: x86 (IA32)
OS/Version: Linux (All)
Status: NEW
Severity: normal
Priority: medium
Component: Mesa core
AssignedTo: [email protected]
ReportedBy: [EMAIL PROTECTED]
If drwa pixels with format GL_DEPTH_COMPONENT, change the zoom factor by
calling glPixelZoom(1.0, -1.0); then copy the pixels to another position
with type GL_DEPTH. The pixels' depth value in new copy place should be the
same with the origin pixels, but it is incorrect.
Root cause:
These code in swrast/s_copypix.c:copy_depth_pixels() Line #537 is incorrect, it
should call _swrast_write_zoomed_depth_span instead of
_swrast_write_zoomed_rgba_span.
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