i965: Change type of brw_context.primitive from GLenum to hardware primitive

For example, GL_TRIANLGES is converted to _3DPRIM_TRILIST.

The conversion is necessary because HiZ and MSAA resolve operations emit
a 3DPRIM_RECTLIST, which cannot be conveyed by GLenum.

As a consequence, brw_gs_prog_key.primitive is also converted.

v2
----
- [anholt] Split brw_set_prim into brw/gen6 variants in previous commit,
  since not much code is really shared between the two.
- [anholt] Replace switch statements with table lookups, since this is
  a hot path.

Reviewed-by: Eric Anholt <[email protected]>
Signed-off-by: Chad Versace <[email protected]>

1 files changed, 1 insertions, 1 deletions

diff --git a/src/mesa/drivers/dri/i965/brw_gs.h b/src/mesa/drivers/dri/i965/brw_gs.h
index cee7467628b..0e4ff3fedf6 100644
--- a/src/mesa/drivers/dri/i965/brw_gs.h
+++ b/src/mesa/drivers/dri/i965/brw_gs.h
@@ -41,7 +41,7 @@
 
 struct brw_gs_prog_key {
    GLbitfield64 attrs;
-   GLuint primitive:4;
+   GLuint primitive:8; /**< Hardware primitive, such as _3DPRIM_TRILIST. */
    GLuint pv_first:1;
    GLuint need_gs_prog:1;
    GLuint userclip_active:1;