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-rw-r--r--src/mesa/drivers/dri/nouveau/nv04_context.c20
1 files changed, 16 insertions, 4 deletions
diff --git a/src/mesa/drivers/dri/nouveau/nv04_context.c b/src/mesa/drivers/dri/nouveau/nv04_context.c
index 1d34c86350..9c32b480b0 100644
--- a/src/mesa/drivers/dri/nouveau/nv04_context.c
+++ b/src/mesa/drivers/dri/nouveau/nv04_context.c
@@ -31,6 +31,20 @@
#include "nouveau_class.h"
#include "nv04_driver.h"
+static GLboolean
+texunit_needs_combiners(struct gl_texture_unit *u)
+{
+ struct gl_texture_object *t = u->_Current;
+ struct gl_texture_image *ti = t->Image[0][t->BaseLevel];
+
+ return ti->TexFormat == MESA_FORMAT_A8 ||
+ ti->TexFormat == MESA_FORMAT_L8 ||
+ u->EnvMode == GL_COMBINE ||
+ u->EnvMode == GL_COMBINE4_NV ||
+ u->EnvMode == GL_BLEND ||
+ u->EnvMode == GL_ADD;
+}
+
struct nouveau_grobj *
nv04_context_engine(GLcontext *ctx)
{
@@ -38,10 +52,8 @@ nv04_context_engine(GLcontext *ctx)
struct nouveau_hw_state *hw = &to_nouveau_context(ctx)->hw;
struct nouveau_grobj *fahrenheit;
- if (ctx->Texture.Unit[0].EnvMode == GL_COMBINE ||
- ctx->Texture.Unit[0].EnvMode == GL_COMBINE4_NV ||
- ctx->Texture.Unit[0].EnvMode == GL_BLEND ||
- ctx->Texture.Unit[0].EnvMode == GL_ADD ||
+ if ((ctx->Texture.Unit[0]._ReallyEnabled &&
+ texunit_needs_combiners(&ctx->Texture.Unit[0])) ||
ctx->Texture.Unit[1]._ReallyEnabled ||
ctx->Stencil.Enabled)
fahrenheit = hw->eng3dm;