Updated GLSL uniform/sampler handling from gallium-0.1 branch
Previously, the shader linker combined the uniforms used by the vertex and
fragment shaders into a combined set of uniforms. This made the implementation
of glUniform*() simple, but was rather inefficient otherwise. Now each shader
gets its own set of uniforms (no more modelview matrix showing up in the
fragment shader uniforms, for example).
cherry-picked by hand from gallium-0.1 branch
diff --git a/src/mesa/shader/prog_execute.c b/src/mesa/shader/prog_execute.c
index cb17aa5..d9bde3f 100644
--- a/src/mesa/shader/prog_execute.c
+++ b/src/mesa/shader/prog_execute.c
@@ -310,6 +310,8 @@
const GLfloat texcoord[4], GLfloat lodBias,
GLfloat color[4])
{
+ const GLuint unit = machine->Samplers[inst->TexSrcUnit];
+
/* Note: we only have the right derivatives for fragment input attribs.
*/
if (machine->NumDeriv > 0 &&
@@ -320,12 +322,10 @@
machine->FetchTexelDeriv(ctx, texcoord,
machine->DerivX[attr],
machine->DerivY[attr],
- lodBias,
- inst->TexSrcUnit, color);
+ lodBias, unit, color);
}
else {
- machine->FetchTexelLod(ctx, texcoord, lodBias,
- inst->TexSrcUnit, color);
+ machine->FetchTexelLod(ctx, texcoord, lodBias, unit, color);
}
}