diff options
Diffstat (limited to 'src/mesa')
| -rw-r--r-- | src/mesa/state_tracker/st_manager.c | 16 |
1 files changed, 13 insertions, 3 deletions
diff --git a/src/mesa/state_tracker/st_manager.c b/src/mesa/state_tracker/st_manager.c index 5efbd1fa1d2..bee1f6b1366 100644 --- a/src/mesa/state_tracker/st_manager.c +++ b/src/mesa/state_tracker/st_manager.c @@ -1130,9 +1130,19 @@ st_manager_flush_frontbuffer(struct st_context *st) struct st_framebuffer *stfb = st_ws_framebuffer(st->ctx->DrawBuffer); struct st_renderbuffer *strb = NULL; - if (stfb) - strb = st_renderbuffer(stfb->Base.Attachment[BUFFER_FRONT_LEFT]. - Renderbuffer); + if (!stfb) + return; + + /* If the context uses a doublebuffered visual, but the buffer is + * single-buffered, guess that it's a pbuffer, which doesn't need + * flushing. + */ + if (st->ctx->Visual.doubleBufferMode && + !stfb->Base.Visual.doubleBufferMode) + return; + + strb = st_renderbuffer(stfb->Base.Attachment[BUFFER_FRONT_LEFT]. + Renderbuffer); /* Do we have a front color buffer and has it been drawn to since last * frontbuffer flush? |