i965: initial attempt at fixing the aperture overflow

Makes state emission into a 2 phase, prepare sets things up and accounts
the size of all referenced buffer objects. The emit stage then actually
does the batchbuffer touching for emitting the objects.

There is an assert in dri_emit_reloc if a reloc occurs for a buffer
that hasn't been accounted yet.

1 files changed, 15 insertions, 3 deletions

diff --git a/src/mesa/drivers/dri/i965/brw_draw.h b/src/mesa/drivers/dri/i965/brw_draw.h
index 0f7b738..b354740 100644
--- a/src/mesa/drivers/dri/i965/brw_draw.h
+++ b/src/mesa/drivers/dri/i965/brw_draw.h
@@ -31,6 +31,7 @@
 #include "mtypes.h"		/* for GLcontext... */
 #include "vbo/vbo.h"
 
+#include "dri_bufmgr.h"
 struct brw_context;
 
 
@@ -53,10 +54,21 @@ void brw_init_current_values(GLcontext *ctx,
 
 /* brw_draw_upload.c
  */
-void brw_upload_indices( struct brw_context *brw,
-			 const struct _mesa_index_buffer *index_buffer);
+int brw_prepare_indices( struct brw_context *brw,
+			 const struct _mesa_index_buffer *index_buffer,
+			 dri_bo **bo_return,
+			 GLuint *offset_return);
 
-GLboolean brw_upload_vertices( struct brw_context *brw,
+void brw_emit_indices( struct brw_context *brw,
+		       const struct _mesa_index_buffer *index_buffer,
+		       dri_bo *bo,
+		       GLuint offset);
+
+int brw_prepare_vertices( struct brw_context *brw,
+			       GLuint min_index,
+			       GLuint max_index );
+
+void brw_emit_vertices( struct brw_context *brw,
 			       GLuint min_index,
 			       GLuint max_index );