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Diffstat (limited to 'src/gallium/state_trackers/wgl/stw_pixelformat.c')
-rw-r--r--src/gallium/state_trackers/wgl/stw_pixelformat.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/src/gallium/state_trackers/wgl/stw_pixelformat.c b/src/gallium/state_trackers/wgl/stw_pixelformat.c
index 7d4c2430b0..b750b03695 100644
--- a/src/gallium/state_trackers/wgl/stw_pixelformat.c
+++ b/src/gallium/state_trackers/wgl/stw_pixelformat.c
@@ -302,6 +302,9 @@ DrvDescribePixelFormat(
(void) hdc;
+ if (!stw_dev)
+ return 0;
+
count = stw_pixelformat_get_extended_count();
index = (uint) iPixelFormat - 1;