On 04/12/2011 03:33 PM, c...@chad-versace.us wrote:
From: Chad Versace<c...@chad-versace.us>

Release the old depth region and reference the new one *only* if it has
changed.

Signed-off-by: Chad Versace<c...@chad-versace.us>
---
  src/mesa/drivers/dri/i965/brw_vtbl.c |   10 ++++------
  1 files changed, 4 insertions(+), 6 deletions(-)

diff --git a/src/mesa/drivers/dri/i965/brw_vtbl.c 
b/src/mesa/drivers/dri/i965/brw_vtbl.c
index 152ee14..ce8712a 100644
--- a/src/mesa/drivers/dri/i965/brw_vtbl.c
+++ b/src/mesa/drivers/dri/i965/brw_vtbl.c
@@ -115,13 +115,11 @@ static void brw_set_draw_region( struct intel_context 
*intel,
  {
     struct brw_context *brw = brw_context(&intel->ctx);

-   /* release old color/depth regions */
-   if (brw->state.depth_region != depth_region)
+   if (brw->state.depth_region != depth_region) {
        brw->state.dirty.brw |= BRW_NEW_DEPTH_BUFFER;
-   intel_region_release(&brw->state.depth_region);
-
-   /* reference new color/depth regions */
-   intel_region_reference(&brw->state.depth_region, depth_region);
+      intel_region_release(&brw->state.depth_region);
+      intel_region_reference(&brw->state.depth_region, depth_region);
+   }
  }

This seems like a very sensible change. I am especially glad to see the comment about color regions go, since...there isn't any code relating to color buffers here.

Reviewed-by: Kenneth Graunke <kenn...@whitecape.org>
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