From: Alexander Monakov <amonakov@ispras.ru>
Date: Mon, 1 Apr 2013 21:38:27 +0000 (+0400)
Subject: Honor GLX_DONT_CARE in MATCH_MASK
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=9cda3560048e8595d3ffa315b76487f4479bff2c;p=mesa.git

Honor GLX_DONT_CARE in MATCH_MASK

NOTE: This is a candidate for stable branches.

Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=47478
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=62999
Bugzilla: http://bugs.winehq.org/show_bug.cgi?id=26763
---

diff --git a/src/glx/glxcmds.c b/src/glx/glxcmds.c
index 7b62be34415..5c79073a9cc 100644
--- a/src/glx/glxcmds.c
+++ b/src/glx/glxcmds.c
@@ -912,8 +912,10 @@ init_fbconfig_for_chooser(struct glx_config * config,
 /* Test that all bits from a are contained in b */
 #define MATCH_MASK(param)			\
   do {						\
-    if ((a->param & ~b->param) != 0)		\
+    if ( ((int) a-> param != (int) GLX_DONT_CARE)	\
+         && ((a->param & ~b->param) != 0) ) {   \
       return False;				\
+    }                                           \
   } while (0);
 
 /**