From: Keith Whitwell <keithw@vmware.com>
Date: Tue, 9 Jun 2009 15:35:55 +0000 (+0100)
Subject: stw: ignore swapbuffer requests on singlebuffer
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=9192347443bc3db9ebeb4b5cc090133b63396b04;p=mesa.git

stw: ignore swapbuffer requests on singlebuffer

Return TRUE in this case.  Returning FALSE seems to result in
mis-rendering -- possibly opengl32.dll is trying to compensate by
doing a software blit??
---

diff --git a/src/gallium/state_trackers/wgl/shared/stw_framebuffer.c b/src/gallium/state_trackers/wgl/shared/stw_framebuffer.c
index f27f4cda218..a601fc5646b 100644
--- a/src/gallium/state_trackers/wgl/shared/stw_framebuffer.c
+++ b/src/gallium/state_trackers/wgl/shared/stw_framebuffer.c
@@ -380,6 +380,9 @@ stw_swap_buffers(
    if (fb == NULL)
       return FALSE;
 
+   if (!(fb->pfi->pfd.dwFlags & PFD_DOUBLEBUFFER))
+      return TRUE;
+
    pipe_mutex_lock( fb->mutex );
 
    /* If we're swapping the buffer associated with the current context