llvmpipe: Use struct lp_shader_input in the interpolator.

Eliminates all this identical yet slightly different code to decide how
shader inputs should be interpolated.

As bonus, don't interpolate the position twice when it is listed in the
TGSI shader inputs.

1 files changed, 5 insertions, 0 deletions

diff --git a/src/gallium/drivers/llvmpipe/lp_context.h b/src/gallium/drivers/llvmpipe/lp_context.h
index de7fe7a179..689265fa30 100644
--- a/src/gallium/drivers/llvmpipe/lp_context.h
+++ b/src/gallium/drivers/llvmpipe/lp_context.h
@@ -37,6 +37,7 @@
 
 #include "lp_tex_sample.h"
 #include "lp_jit.h"
+#include "lp_setup.h"
 
 
 struct llvmpipe_vbuf_render;
@@ -90,6 +91,10 @@ struct llvmpipe_context {
    /** Vertex format */
    struct vertex_info vertex_info;
 
+   /** Fragment shader input interpolation info */
+   unsigned num_inputs;
+   struct lp_shader_input inputs[PIPE_MAX_SHADER_INPUTS];
+
    /** The tiling engine */
    struct lp_setup_context *setup;