diff options
| author | Brian Paul <brianp@vmware.com> | 2009-05-01 09:30:32 -0600 |
|---|---|---|
| committer | Ian Romanick <ian.d.romanick@intel.com> | 2009-06-22 15:15:19 -0700 |
| commit | 00e203fe17cbf2127abc422c785cf9fad3232adb (patch) | |
| tree | f925c2f859536a7c87f088191050c964276594d1 /src/mesa/main/mtypes.h | |
| parent | abfd56c24c821e0dec233348ef01aef5b57f2763 (diff) | |
mesa: create/use a fallback texture when bound texture is incomplete
When a GLSL sampler reads from an incomplete texture it should
return (0,0,0,1). Instead of jumping through hoops in all the drivers
to make this happen, just create/install a fallback texture with those
texel values.
Fixes piglit/fp-incomplete-tex on i965 and more importantly, fixes some
GPU lockups when trying to sample from missing surfaces. If a binding
table entry is NULL, it seems that sampling sometimes works, but not
always (lockup).
Todo: create a fallback texture for each type of texture target?
(cherry picked from commit 3f25219c7bf0f090502489928f0f018e62c4f6cf)
Diffstat (limited to 'src/mesa/main/mtypes.h')
| -rw-r--r-- | src/mesa/main/mtypes.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/src/mesa/main/mtypes.h b/src/mesa/main/mtypes.h index 8872c8963f..b9cb972e5f 100644 --- a/src/mesa/main/mtypes.h +++ b/src/mesa/main/mtypes.h @@ -2053,6 +2053,9 @@ struct gl_shared_state /** Default texture objects (shared by all texture units) */ struct gl_texture_object *DefaultTex[NUM_TEXTURE_TARGETS]; + /** Fallback texture used when a bound texture is incomplete */ + struct gl_texture_object *FallbackTex; + /** * \name Thread safety and statechange notification for texture * objects. |