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-rw-r--r--src/gallium/state_trackers/glx/xlib/glx_api.c14
1 files changed, 14 insertions, 0 deletions
diff --git a/src/gallium/state_trackers/glx/xlib/glx_api.c b/src/gallium/state_trackers/glx/xlib/glx_api.c
index 8e3c6b89f24..20fae26a416 100644
--- a/src/gallium/state_trackers/glx/xlib/glx_api.c
+++ b/src/gallium/state_trackers/glx/xlib/glx_api.c
@@ -687,6 +687,20 @@ choose_visual( Display *dpy, int screen, const int *list, GLboolean fbConfig )
while (*parselist) {
+ if (fbConfig &&
+ parselist[1] == GLX_DONT_CARE &&
+ parselist[0] != GLX_LEVEL) {
+ /* For glXChooseFBConfig(), skip attributes whose value is
+ * GLX_DONT_CARE, unless it's GLX_LEVEL (which can legitimately be
+ * a negative value).
+ *
+ * From page 17 (23 of the pdf) of the GLX 1.4 spec:
+ * GLX DONT CARE may be specified for all attributes except GLX LEVEL.
+ */
+ parselist += 2;
+ continue;
+ }
+
switch (*parselist) {
case GLX_USE_GL:
if (fbConfig) {