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authorEric Anholt <eric@anholt.net>2011-02-14 18:38:33 -0800
committerEric Anholt <eric@anholt.net>2011-02-26 12:43:15 -0800
commit4d01bea808592aec74be2d2a4bbb6488b9299cda (patch)
treeed1534967e14af48c67e2d130cfdaaeecf7acfba /src/glx/glxcmds.c
parent49d7e48b33264d94e30af6129c281b6acafa9427 (diff)
glx: Don't do the implicit glFlush in SwapBuffers if it's the wrong drawable.
The GLX Spec says you only implicitly glFlush if the drawable being swapped is the current context's drawable.
Diffstat (limited to 'src/glx/glxcmds.c')
-rw-r--r--src/glx/glxcmds.c8
1 files changed, 6 insertions, 2 deletions
diff --git a/src/glx/glxcmds.c b/src/glx/glxcmds.c
index 80eaf72b7d..22bebab26b 100644
--- a/src/glx/glxcmds.c
+++ b/src/glx/glxcmds.c
@@ -727,11 +727,16 @@ glXSwapBuffers(Display * dpy, GLXDrawable drawable)
xGLXSwapBuffersReq *req;
#endif
+ gc = __glXGetCurrentContext();
+
#if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
__GLXDRIdrawable *pdraw = GetGLXDRIDrawable(dpy, drawable);
if (pdraw != NULL) {
- glFlush();
+ if (gc && drawable == gc->currentDrawable) {
+ glFlush();
+ }
+
(*pdraw->psc->driScreen->swapBuffers)(pdraw, 0, 0, 0);
return;
}
@@ -746,7 +751,6 @@ glXSwapBuffers(Display * dpy, GLXDrawable drawable)
** The calling thread may or may not have a current context. If it
** does, send the context tag so the server can do a flush.
*/
- gc = __glXGetCurrentContext();
if ((gc != NULL) && (dpy == gc->currentDpy) &&
((drawable == gc->currentDrawable)
|| (drawable == gc->currentReadable))) {