[Mesa-dev] [RFC 2/3] i965: prepare_depthbuffer: don't update NULL region'ed surface, rhbz#735794

[Alon Levy]

---
 src/mesa/drivers/dri/i965/brw_wm_surface_state.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)

diff --git a/src/mesa/drivers/dri/i965/brw_wm_surface_state.c b/src/mesa/drivers/dri/i965/brw_wm_surface_state.c
index ad90978..abaed60 100644
--- a/src/mesa/drivers/dri/i965/brw_wm_surface_state.c
+++ b/src/mesa/drivers/dri/i965/brw_wm_surface_state.c
@@ -442,6 +442,9 @@ brw_update_renderbuffer_surface(struct brw_context *brw,
    uint32_t tile_x, tile_y;
    uint32_t format = 0;
 
+   if (irb->region == NULL)
+      return;
+
    surf = brw_state_batch(brw, AUB_TRACE_SURFACE_STATE,
 			  6 * 4, 32, &brw->wm.surf_offset[unit]);
 
-- 
1.7.6.1