[Mesa-dev] [PATCH 1/2] Fix __glXInitializeVisualConfigFromTags's handling of unrecognized fbconfig tags.

[Aaron Plattner]

__glXInitializeVisualConfigFromTags doesn't skip the payload of unrecognized
tags.  Instead, it treats the value as if it were the next tag, which can happen
if the server's GLX extension is not Mesa's.  For example, this falls down when
NVIDIA sends a GLX_FLOAT_COMPONENTS_NV = 0 pair, causing
__glXInitializeVisualConfigFromTags to bail out early.

Signed-off-by: Aaron Plattner <aplattner at nvidia.com>
---
 src/glx/glxext.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/src/glx/glxext.c b/src/glx/glxext.c
index 5289354..6d6f89e 100644
--- a/src/glx/glxext.c
+++ b/src/glx/glxext.c
@@ -539,6 +539,8 @@ __glXInitializeVisualConfigFromTags(__GLcontextModes * config, int count,
          i = count;
          break;
       default:
+         /* Ignore the unrecognized tag's value */
+         bp++;
          break;
       }
    }
-- 
1.6.3.3