commit 20119160e2397a2c75c7e01158e9ca7d4d0d3eb0
author Simon Que <sque@chromium.org> Wed Mar 21 20:06:26 2012
committer Simon Que <sque@chromium.org> Wed Mar 21 20:09:23 2012
tree 22e2316f32c0136c75409b6e697f63a5b21280b5
parent 56614bf0b26fff0ca05f4712bbaacf6297e8dfa6

Flush GL commands before a DRM page flip

Otherwise unfinished frames get drawn to the screen.

BUG=chromium-os:25587
TEST=None

Change-Id: Ifd0cd6ad2065294fee7003df555735a26908c7a0
Signed-off-by: Simon Que <sque@chromium.org>

src/canvas-drm.cpp

diff --git a/src/canvas-drm.cpp b/src/canvas-drm.cpp
index 5513849..596d03d 100644
--- a/src/canvas-drm.cpp
+++ b/src/canvas-drm.cpp
@@ -476,6 +476,7 @@
 
     // Attempt to flip to the first rendered buffer in the queue.
     if (current_front_buffer_index_ < 0) {
+        glFlush();
         ret = drmModePageFlip(fd_, kms_.encoder->crtc_id,
                               kms_.fb_ids[rendered_buffers_.front()],
                               DRM_MODE_PAGE_FLIP_EVENT, this);