xserver: Branch 'master'
Keith Packard
keithp at kemper.freedesktop.org
Thu Aug 21 18:13:29 PDT 2014
fb/fbwindow.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
New commits:
commit fe5018e0564118a7a8198fa286186fdb9ed818c7
Author: Takashi Iwai <tiwai at suse.de>
Date: Tue Aug 19 15:57:22 2014 -0500
fb: Fix invalid bpp for 24bit depth window
We have a hack in fb layer for a 24bpp screen to use 32bpp images, and
fbCreateWindow() replaces its drawable.bitsPerPixel field
appropriately. But, the problem is that it always replaces when 32bpp
is passed. If the depth is 32, this results in bpp < depth, which is
actually invalid.
Meanwhile, fbCreatePixmap() has a more check and it creates with 24bpp
only when the passed depth <= 24 for avoiding such a problem.
This oneliner patch just adds the similar check in fbCreateWindow().
This (hopefully) fixes the long-standing broken graphics mess of
cirrus KMS with 24bpp.
Signed-off-by: Takashi Iwai <tiwai at suse.de>
Reviewed-by: Keith Packard <keithp at keithp.com>
diff --git a/fb/fbwindow.c b/fb/fbwindow.c
index 368c4b8..c90175f 100644
--- a/fb/fbwindow.c
+++ b/fb/fbwindow.c
@@ -33,7 +33,7 @@ fbCreateWindow(WindowPtr pWin)
{
dixSetPrivate(&pWin->devPrivates, fbGetWinPrivateKey(pWin),
fbGetScreenPixmap(pWin->drawable.pScreen));
- if (pWin->drawable.bitsPerPixel == 32)
+ if (pWin->drawable.bitsPerPixel == 32 && pWin->drawable.depth <= 24)
pWin->drawable.bitsPerPixel =
fbGetScreenPrivate(pWin->drawable.pScreen)->win32bpp;
return TRUE;
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