Mesa (gallium-index-bias): i965g: Implement index bias.

[Jose Fonseca]

Module: Mesa
Branch: gallium-index-bias
Commit: 9ca0f45d8af5aa3152350594093797210d052b6e
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=9ca0f45d8af5aa3152350594093797210d052b6e

Author: José Fonseca <jfonseca at vmware.com>
Date:   Mon Apr 19 18:14:58 2010 +0200

i965g: Implement index bias.

---

 src/gallium/drivers/i965/brw_draw.c |   10 ++++++----
 1 files changed, 6 insertions(+), 4 deletions(-)

diff --git a/src/gallium/drivers/i965/brw_draw.c b/src/gallium/drivers/i965/brw_draw.c
index eb73ec2..4625c20 100644
--- a/src/gallium/drivers/i965/brw_draw.c
+++ b/src/gallium/drivers/i965/brw_draw.c
@@ -179,7 +179,7 @@ try_draw_range_elements(struct brw_context *brw,
 static void
 brw_draw_range_elements(struct pipe_context *pipe,
 			struct pipe_resource *index_buffer,
-			unsigned index_size,
+			unsigned index_size, int index_bias,
 			unsigned min_index,
 			unsigned max_index,
 			unsigned mode, unsigned start, unsigned count)
@@ -194,6 +194,8 @@ brw_draw_range_elements(struct pipe_context *pipe,
       debug_printf("PRIM: %s start %d count %d index_buffer %p\n",
                    u_prim_name(mode), start, count, (void *)index_buffer);
 
+   assert(index_bias == 0);
+
    /* Potentially trigger upload of new index buffer.
     *
     * XXX: do we need to go through state validation to achieve this?
@@ -233,12 +235,12 @@ brw_draw_range_elements(struct pipe_context *pipe,
 static void
 brw_draw_elements(struct pipe_context *pipe,
 		  struct pipe_resource *index_buffer,
-		  unsigned index_size,
+		  unsigned index_size, int index_bias,
 		  unsigned mode, 
 		  unsigned start, unsigned count)
 {
    brw_draw_range_elements( pipe, index_buffer,
-                            index_size,
+                            index_size, index_bias,
                             0, 0xffffffff,
                             mode, 
                             start, count );
@@ -248,7 +250,7 @@ static void
 brw_draw_arrays(struct pipe_context *pipe, unsigned mode,
                      unsigned start, unsigned count)
 {
-   brw_draw_elements(pipe, NULL, 0, mode, start, count);
+   brw_draw_elements(pipe, NULL, 0, 0, mode, start, count);
 }