llvmpipe: bin state-change commands

Previously, each triangle had a pointer to the state to use for shading.
Now we insert state-change commands into the bins.  When we execute one
of those commands we just update a 'current state' pointer and use that
pointer when calling the jit shader.

When inserting state-change commands into a bin we check if the previous
command was also a state-change command and simply replace it.  This
avoids accumulating useless/redundant state-change commands.

1 files changed, 5 insertions, 10 deletions

diff --git a/src/gallium/drivers/llvmpipe/lp_rast.h b/src/gallium/drivers/llvmpipe/lp_rast.h
index 435993d44d2..e9a1fa49add 100644
--- a/src/gallium/drivers/llvmpipe/lp_rast.h
+++ b/src/gallium/drivers/llvmpipe/lp_rast.h
@@ -55,18 +55,13 @@ struct lp_rast_state {
 
 };
 
-/* Coefficients necessary to run the shader at a given location:
+
+/**
+ * Coefficients necessary to run the shader at a given location.
+ * First coefficient is position.
+ * These pointers point into the bin data buffer.
  */
 struct lp_rast_shader_inputs {
-
-   /* Current rasterizer state:
-    */
-   const struct lp_rast_state *state;
-
-   /* Attribute interpolation:
-    * First coefficient is position.
-    * These pointers point into the bin data buffer.
-    */
    float (*a0)[4];
    float (*dadx)[4];
    float (*dady)[4];