commit 0fa44e2bbab3d323ad8ca5bb99d3f1d298ba96bb
author Mike Stroyan <mike@LunarG.com> Wed Jan 14 17:39:35 2015 -0700
committer Courtney Goeltzenleuchter <courtney@LunarG.com> Wed Feb 04 17:58:07 2015 -0700
tree 63830b9e6d17acd9508d7f0cf42aafa632a1e27f
parent 727e469b962235c5a05ba8b282f483d051c56940

intel: Set stencil read and write for backfaces

The stencil read and write masks for backfaces need to be set separately.

icd/intel/state.c

diff --git a/icd/intel/state.c b/icd/intel/state.c
index 20c68c3..232c70b 100644
--- a/icd/intel/state.c
+++ b/icd/intel/state.c
@@ -511,8 +511,11 @@
       if (info->stencilWriteMask)
          dw[0] |= 1 << 18;
 
+      /* same read and write masks for both front and back faces */
       dw[1] = (info->stencilReadMask & 0xff) << 24 |
-              (info->stencilWriteMask & 0xff) << 16;
+              (info->stencilWriteMask & 0xff) << 16 |
+              (info->stencilReadMask & 0xff) << 8 |
+              (info->stencilWriteMask & 0xff);
 
       state->cmd_stencil_ref = (info->front.stencilRef & 0xff) << 24 |
                                (info->back.stencilRef & 0xff) << 16;