http://bugs.freedesktop.org/show_bug.cgi?id=21997
Summary: [gallium-mesa-7.4] Add tex_transfer to pipe_screen in
order to speed up glreadpixels
Product: Mesa
Version: unspecified
Platform: x86 (IA32)
OS/Version: Linux (All)
Status: NEW
Severity: normal
Priority: medium
Component: Other
AssignedTo: [email protected]
ReportedBy: [email protected]
In the case video memory is in non-linear layout, calling get_tex_surface will
result in a whole buffer data conversion no matter glreadpixels only wants data
in a sub-rect. The attached code is trying to port pipe_transfer into
gallium-mesa-7.4 branch in order to speed up glreadpixels.
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