diff options
| author | Chris Forbes <[email protected]> | 2014-04-13 12:37:31 +1200 |
|---|---|---|
| committer | Chris Forbes <[email protected]> | 2014-04-21 10:12:00 +1200 |
| commit | c4a98e76d7dcb84ba6a0337dc975351966c4dac7 (patch) | |
| tree | 1669b5393c799dc1447013a0f5f15bfd7d5ad62b | |
| parent | ba6dcb3c2b8f516b120f591144bf6c3751f0e3f9 (diff) | |
mesa: Track max enabled tex image unit
This gives us a better bound for some hot loops in the drivers than
MAX_COMBINED_TEXTURE_IMAGE_UNITS, which is ridiculously large on modern
hardware, and only getting worse as more shader stages are added.
Signed-off-by: Chris Forbes <[email protected]>
Reviewed-by: Anuj Phogat <[email protected]>
Reviewed-by: Ian Romanick <[email protected]>
| -rw-r--r-- | src/mesa/main/mtypes.h | 3 | ||||
| -rw-r--r-- | src/mesa/main/texstate.c | 2 |
2 files changed, 5 insertions, 0 deletions
diff --git a/src/mesa/main/mtypes.h b/src/mesa/main/mtypes.h index 4d014d1ee3a..66943836c5b 100644 --- a/src/mesa/main/mtypes.h +++ b/src/mesa/main/mtypes.h @@ -1402,6 +1402,9 @@ struct gl_texture_attrib /** Bitwise-OR of all Texture.Unit[i]._GenFlags */ GLbitfield _GenFlags; + + /** Upper bound on _ReallyEnabled texunits. */ + GLint _MaxEnabledTexImageUnit; }; diff --git a/src/mesa/main/texstate.c b/src/mesa/main/texstate.c index fcae878cf84..b68920ce170 100644 --- a/src/mesa/main/texstate.c +++ b/src/mesa/main/texstate.c @@ -550,6 +550,7 @@ update_texture_state( struct gl_context *ctx ) ctx->Texture._GenFlags = 0x0; ctx->Texture._TexMatEnabled = 0x0; ctx->Texture._TexGenEnabled = 0x0; + ctx->Texture._MaxEnabledTexImageUnit = -1; /* * Update texture unit state. @@ -636,6 +637,7 @@ update_texture_state( struct gl_context *ctx ) /* if we get here, we know this texture unit is enabled */ ctx->Texture._EnabledUnits |= (1 << unit); + ctx->Texture._MaxEnabledTexImageUnit = unit; if (enabledTargetsByStage[MESA_SHADER_FRAGMENT]) enabledFragUnits |= (1 << unit); |