https://bugs.freedesktop.org/show_bug.cgi?id=92706
Bug ID: 92706
Summary: glBlitFramebuffer refuses to blit RGBA to RGB with
MSAA
Product: Mesa
Version: unspecified
Hardware: x86-64 (AMD64)
OS: Linux (All)
Status: NEW
Severity: normal
Priority: medium
Component: Mesa core
Assignee: mesa-dev@lists.freedesktop.org
Reporter: timo...@gmail.com
QA Contact: mesa-dev@lists.freedesktop.org
Created attachment 119247
--> https://bugs.freedesktop.org/attachment.cgi?id=119247&action=edit
patch to allow RGBA->RGB multi-sampled resolves
When doing a glBlitFramebuffer from an RGBA multisampled texture to a regular
RGB texture mesa gives GL_INVALID_OPERATION "(bad src/dst multisample pixel
formats)".
With the attached patch the operation works fine on a Radeon HD6850 and Intel
Core i7-4770R, which hints that the drivers already support it.
This issue breaks MSAA in "X Rebirth", both nvidia and amd proprietary drivers
support this kind of resolve. We have a clean error log (using debug_output) so
afaik we're doing everything correctly.
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