[Mesa-dev] [PATCH] mesa: fix frag shader generation for alpha test with no color buffers

Eric Anholt eric at anholt.net
Sat Nov 26 19:36:42 PST 2011

On Sat, 26 Nov 2011 08:55:01 -0700, Brian Paul <brianp at vmware.com> wrote:
> If alpha test is enabled and there's no color buffers we still need the
> fragment shader to emit a color.
> v2: add _NEW_COLOR flag in _mesa_update_state_locked()
> Fixes piglit fbo-alphatest-nocolor-ff failures with Gallium drivers.

Reviewed-by: Eric Anholt <eric at anholt.net>
Tested-by: Eric Anholt <eric at anholt.net> (i965)

(Not sure what you're seeing with the i965 driver -- no fbo complaints
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