indices: add translate/generate functions for unfilled modes

Most of the time unfilled rendering requires a lot more thought than
just translating triangles to lines or points.  But sometimes, you can
do exactly that, and it can be quite a bit quicker.  Add code to do the
translation.  The caller has to determine whether it's a legal thing
to do in the current state, in particular you'd need:
  - culling disabled
  - offset disabled
  - same front and back fill modes
  - possibly other stuff I can't think of.

1 files changed, 23 insertions, 0 deletions

diff --git a/src/gallium/auxiliary/indices/u_indices.h b/src/gallium/auxiliary/indices/u_indices.h
index abf5a3037d..be522c6725 100644
--- a/src/gallium/auxiliary/indices/u_indices.h
+++ b/src/gallium/auxiliary/indices/u_indices.h
@@ -80,4 +80,27 @@ int u_index_generator( unsigned hw_mask,
                        u_generate_func *out_generate );
 
 
+void u_unfilled_init( void );
+
+int u_unfilled_translator( unsigned prim,
+                           unsigned in_index_size,
+                           unsigned nr,
+                           unsigned unfilled_mode,
+                           unsigned *out_prim,
+                           unsigned *out_index_size,
+                           unsigned *out_nr,
+                           u_translate_func *out_translate );
+
+int u_unfilled_generator( unsigned prim,
+                          unsigned start,
+                          unsigned nr,
+                          unsigned unfilled_mode,
+                          unsigned *out_prim,
+                          unsigned *out_index_size,
+                          unsigned *out_nr,
+                          u_generate_func *out_generate );
+
+
+
+
 #endif