diff options
| -rw-r--r-- | src/gallium/state_trackers/wgl/stw_pixelformat.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/gallium/state_trackers/wgl/stw_pixelformat.c b/src/gallium/state_trackers/wgl/stw_pixelformat.c index 18ac4823696..5ede1d43220 100644 --- a/src/gallium/state_trackers/wgl/stw_pixelformat.c +++ b/src/gallium/state_trackers/wgl/stw_pixelformat.c @@ -185,7 +185,7 @@ stw_pixelformat_add( */ pfi->stvis.buffer_mask = ST_ATTACHMENT_FRONT_LEFT_MASK; if (doublebuffer) - pfi->stvis.buffer_mask = ST_ATTACHMENT_BACK_LEFT_MASK; + pfi->stvis.buffer_mask |= ST_ATTACHMENT_BACK_LEFT_MASK; pfi->stvis.color_format = color->format; pfi->stvis.depth_stencil_format = depth->format; |