st/glx: Remove a wrong assertion in choose_pixel_format.

There are X visuals that Gallium or the code does not support.  We could
not assert the color format to be supported.  Return PIPE_FORMAT_NONE in
such cases and let the caller handle it.

1 files changed, 4 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 4930cd6cd5..eb8d6a1933 100644
--- a/src/gallium/state_trackers/glx/xlib/glx_api.c
+++ b/src/gallium/state_trackers/glx/xlib/glx_api.c
@@ -1758,6 +1758,10 @@ glXGetFBConfigs( Display *dpy, int screen, int *nelements )
       }
       for (i = 0; i < *nelements; i++) {
          results[i] = create_glx_visual(dpy, visuals + i);
+         if (!results[i]) {
+            *nelements = i;
+            break;
+         }
       }
       return (GLXFBConfig *) results;
    }