draw: implement proper primitive assembler as a pipeline stage

we used to have a face primitive assembler that we ran after if
the gs was missing but we had adjacency primitives in the pipeline,
lets convert it to a pipeline stage, which allows us to use it
to inject outputs (primitive id) into the vertices. it's also
a lot cleaner because the decomposition is already handled for us.

Signed-off-by: Zack Rusin <zackr@vmware.com>
Reviewed-by: Roland Scheidegger <sroland@vmware.com>
Reviewed-by: Jose Fonseca <jfonseca@vmware.com>
Reviewed-by: Brian Paul <brianp@vmware.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/src/gallium/auxiliary/draw/draw_private.h b/src/gallium/auxiliary/draw/draw_private.h
index 868b6c7..b21e795 100644
--- a/src/gallium/auxiliary/draw/draw_private.h
+++ b/src/gallium/auxiliary/draw/draw_private.h
@@ -130,6 +130,7 @@ struct draw_context
       struct draw_stage *wide_line;
       struct draw_stage *wide_point;
       struct draw_stage *rasterize;
+      struct draw_stage *ia;
 
       float wide_point_threshold; /**< convert pnts to tris if larger than this */
       float wide_line_threshold;  /**< convert lines to tris if wider than this */