r300g: implement fast color clear

An initial implementation made by Dave Airlie.

For it to be used, a color-only clear must be invoked and exactly one
point-sampled render target must be set. The render target must be
macrotiled (for us to overcome alignment issues) and bpp must be either
16 or 32.

I can't see a difference in performance. :(

Conflicts:

	src/gallium/drivers/r300/r300_blit.c

1 files changed, 5 insertions, 3 deletions

diff --git a/src/gallium/drivers/r300/r300_emit.h b/src/gallium/drivers/r300/r300_emit.h
index 586ccda620b..5d05039669f 100644
--- a/src/gallium/drivers/r300/r300_emit.h
+++ b/src/gallium/drivers/r300/r300_emit.h
@@ -45,6 +45,11 @@ void r300_emit_clip_state(struct r300_context* r300,
 void r300_emit_dsa_state(struct r300_context* r300,
                          unsigned size, void* state);
 
+void r300_emit_hyperz_state(struct r300_context *r300,
+                            unsigned size, void *state);
+
+void r300_emit_hyperz_end(struct r300_context *r300);
+
 void r300_emit_fs(struct r300_context* r300, unsigned size, void *state);
 
 void r300_emit_fs_constants(struct r300_context* r300, unsigned size, void *state);
@@ -64,9 +69,6 @@ void r300_emit_fb_state_pipelined(struct r300_context *r300,
 
 void r300_emit_gpu_flush(struct r300_context *r300, unsigned size, void *state);
 
-void r300_emit_hyperz_state(struct r300_context *r300,
-                            unsigned size, void *state);
-
 void r300_emit_aa_state(struct r300_context *r300, unsigned size, void *state);
 
 void r300_emit_query_start(struct r300_context *r300, unsigned size, void *state);