Module: Mesa
Branch: master
Commit: d464a21e2d796e396e7e4c0cfe971b41003e2d2a
URL:
http://cgit.freedesktop.org/mesa/mesa/commit/?id=d464a21e2d796e396e7e4c0cfe971b41003e2d2a
Author: Kenneth Graunke <kenn...@whitecape.org>
Date: Wed Dec 7 02:21:37 2011 -0800
i965: Return BRW_DEPTHBUFFER_D32_FLOAT as the null-depthbuffer format.
Fixes many crashes on Ivybridge due to upload_sf_state calling
brw_depthbuffer_format without an actual depth buffer. This was a
recent regression on master.
+3992 piglits on Ivybridge.
Signed-off-by: Kenneth Graunke <kenn...@whitecape.org>
Reviewed-by: Eric Anholt <e...@anholt.net>
---
src/mesa/drivers/dri/i965/brw_misc_state.c | 3 +++
1 files changed, 3 insertions(+), 0 deletions(-)
diff --git a/src/mesa/drivers/dri/i965/brw_misc_state.c
b/src/mesa/drivers/dri/i965/brw_misc_state.c
index 8a6ee70..3e8cb3f 100644
--- a/src/mesa/drivers/dri/i965/brw_misc_state.c
+++ b/src/mesa/drivers/dri/i965/brw_misc_state.c
@@ -212,6 +212,9 @@ brw_depthbuffer_format(struct brw_context *brw)
drb = srb;
}
+ if (!drb)
+ return BRW_DEPTHFORMAT_D32_FLOAT;
+
switch (drb->Base.Format) {
case MESA_FORMAT_Z16:
return BRW_DEPTHFORMAT_D16_UNORM;
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