Mesa (master): egl/dri: don't expose configs with an accumulation buffer

[Marek Olšák]

Module: Mesa
Branch: master
Commit: 396cbabbefaae64deac6d33c79898bb07db8a621
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=396cbabbefaae64deac6d33c79898bb07db8a621

Author: Marek Olšák <marek.olsak at amd.com>
Date:   Thu Apr  9 23:25:07 2015 +0200

egl/dri: don't expose configs with an accumulation buffer

---

 src/egl/drivers/dri2/egl_dri2.c |    9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/src/egl/drivers/dri2/egl_dri2.c b/src/egl/drivers/dri2/egl_dri2.c
index a428f28..14b9be9 100644
--- a/src/egl/drivers/dri2/egl_dri2.c
+++ b/src/egl/drivers/dri2/egl_dri2.c
@@ -194,6 +194,15 @@ dri2_add_config(_EGLDisplay *disp, const __DRIconfig *dri_config, int id,
          dri_masks[3] = value;
          break;
 
+      case __DRI_ATTRIB_ACCUM_RED_SIZE:
+      case __DRI_ATTRIB_ACCUM_GREEN_SIZE:
+      case __DRI_ATTRIB_ACCUM_BLUE_SIZE:
+      case __DRI_ATTRIB_ACCUM_ALPHA_SIZE:
+         /* Don't expose visuals with the accumulation buffer. */
+         if (value > 0)
+            return NULL;
+         break;
+
       default:
 	 key = dri2_to_egl_attribute_map[attrib];
 	 if (key != 0)