https://bugs.freedesktop.org/show_bug.cgi?id=61091
José Fonseca <jfons...@vmware.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Severity|normal |blocker
Priority|medium |high
Assignee|mesa-dev@lists.freedesktop. |mar...@gmail.com
|org |
CC| |bri...@vmware.com,
| |jfons...@vmware.com,
| |srol...@vmware.com
Summary|piglit |u_blitter only works on
|glsl-fs-texture2drect |drivers that ignore
|regression |pipe_sampler_state.normaliz
| |ed_coords
--- Comment #2 from José Fonseca <jfons...@vmware.com> ---
(In reply to comment #1)
> glBlitFramebuffer with rectangle textures is also broken with both softpipe
> and llvmpipe and it has been so for quite a while. I have a piglit test for
> that.
The problem is that u_blitter is misleading drivers: it always sets
sampler_state.normalized_coords = 1, but then passes unnormalized coords for
rectangle textures.
It effectively only works on drivers that ignore normalized_coords.
If you prefer passing unnormalized coord then please fix the state.
Alternatively we could easily modify u_blitter to always pass normalized
coords.
Another thing to consider is just remove normalized_coords state, and force
drivers follow the texture target.
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