xserver: Branch 'master'
Keith Packard
keithp at kemper.freedesktop.org
Wed Aug 15 13:26:38 PDT 2012
glx/glxscreens.c | 3 +++
1 file changed, 3 insertions(+)
New commits:
commit 16d8da5ca99211bd180f532d78d7c5943d38c8ad
Author: Paul Berry <stereotype441 at gmail.com>
Date: Tue Jul 31 15:15:56 2012 -0700
glx: Skip multisampled configs when matching pre-existing X visuals.
In __glXScreenInit() we generate the set of GLX visuals in two steps:
first we match each pre-existing X visual with a corresponding
FBConfig, then we generate a new X visual to correspond to all the
remaining FBConfigs.
The first step is used for the two default 24-bit visuals (true color
and direct color) and for the 32-bit visual. If windowsystem
multisampling is enabled in Mesa, we need to ensure that none of these
three visuals gets matched to a multisampled config.
Fixes a bug with windowsystem multisampling in gnome-shell. If the X
server happens to match up a multisampled FBConfig to the 32-bit
visual, gnome-shell will try to use it to read pixels from
alpha-blended windows (such as gnome-terminal), resulting in no window
appearing on screen.
Reviewed-by: Ian Romanick <ian.d.romanick at intel.com>
Reviewed-by: Chad Versace <chad.versace at linux.intel.com>
Signed-off-by: Keith Packard <keithp at keithp.com>
diff --git a/glx/glxscreens.c b/glx/glxscreens.c
index 037b037..61d590c 100644
--- a/glx/glxscreens.c
+++ b/glx/glxscreens.c
@@ -288,6 +288,9 @@ pickFBConfig(__GLXscreen * pGlxScreen, VisualPtr visual)
continue;
if (config->visualRating != GLX_NONE)
continue;
+ /* Ignore multisampled configs */
+ if (config->sampleBuffers)
+ continue;
if (glxConvertToXVisualType(config->visualType) != visual->class)
continue;
/* If it's the 32-bit RGBA visual, demand a 32-bit fbconfig. */
More information about the xorg-commit
mailing list