Demos (master): clear-fbo-tex: Add missing glFlush call on single buffered visual.

[Jose Fonseca]

Module: Demos
Branch: master
Commit: fde9ff1fff8047ccc9bb804c754d04a547ab3010
URL:    http://cgit.freedesktop.org/mesa/demos/commit/?id=fde9ff1fff8047ccc9bb804c754d04a547ab3010

Author: José Fonseca <jfonseca at vmware.com>
Date:   Thu Jun  2 17:54:36 2011 +0100

clear-fbo-tex: Add missing glFlush call on single buffered visual.

Otherwise the rendering doesn't happen.

---

 src/trivial/clear-fbo-tex.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/src/trivial/clear-fbo-tex.c b/src/trivial/clear-fbo-tex.c
index d91dd67..de84f98 100644
--- a/src/trivial/clear-fbo-tex.c
+++ b/src/trivial/clear-fbo-tex.c
@@ -163,6 +163,8 @@ static void Draw( void )
 
    if (doubleBuffer) {
       glutSwapBuffers();
+   } else {
+      glFlush();
    }
 
    CheckError();