xserver: Branch 'server-1.9-branch'

[Jeremy Huddleston]

 exa/exa_mixed.c |    9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

New commits:
commit 7b3b7efe78dec87c8059ea0d0985f08a97f0633d
Author: Michel Dänzer <daenzer at vmware.com>
Date:   Thu Feb 24 12:17:57 2011 +0100

    EXA/mixed: ModifyPixmapHeader pitch fixes. (bug #33929)
    
    If there's a GPU copy and a non-zero devKind was passed in, set the GPU copy
    pitch to that instead of to a possibly bogus value derived from the new width.
    This is e.g. used by the radeon driver's drmmode_xf86crtc_resize hook, fixes
    https://bugs.freedesktop.org/show_bug.cgi?id=33929 .
    
    On the other hand, the system memory copy doesn't need the pitch to be aligned
    beyond the PixmapBytePad of the width.
    
    Signed-off-by: Michel Dänzer <daenzer at vmware.com>
    Acked-by: Cyril Brulebois <kibi at debian.org>
    Tested-by: Cyril Brulebois <kibi at debian.org>
    Reported-by: Thierry Vignaud <thierry.vignaud at gmail.com>
    Tested-by: Thierry Vignaud <thierry.vignaud at gmail.com>
    Signed-off-by: Keith Packard <keithp at keithp.com>
    (cherry picked from commit 31704510f448706524b7b7085cc4ff0ada7bfe7e)

diff --git a/exa/exa_mixed.c b/exa/exa_mixed.c
index 606f1e1..fd1afb2 100644
--- a/exa/exa_mixed.c
+++ b/exa/exa_mixed.c
@@ -175,8 +175,10 @@ exaModifyPixmapHeader_mixed(PixmapPtr pPixmap, int width, int height, int depth,
 	depth != pPixmap->drawable.depth ||
 	bitsPerPixel != pPixmap->drawable.bitsPerPixel) {
 	if (pExaPixmap->driverPriv) {
-            exaSetFbPitch(pExaScr, pExaPixmap,
-                          width, height, bitsPerPixel);
+	    if (devKind > 0)
+		pExaPixmap->fb_pitch = devKind;
+	    else
+		exaSetFbPitch(pExaScr, pExaPixmap, width, height, bitsPerPixel);
 
             exaSetAccelBlock(pExaScr, pExaPixmap,
                              width, height, bitsPerPixel);
@@ -187,8 +189,7 @@ exaModifyPixmapHeader_mixed(PixmapPtr pPixmap, int width, int height, int depth,
 	if (has_gpu_copy && pExaPixmap->sys_ptr) {
 	    free(pExaPixmap->sys_ptr);
 	    pExaPixmap->sys_ptr = NULL;
-	    pExaPixmap->sys_pitch = devKind > 0 ? devKind :
-	        PixmapBytePad(width, depth);
+	    pExaPixmap->sys_pitch = PixmapBytePad(width, depth);
 	    DamageUnregister(&pPixmap->drawable, pExaPixmap->pDamage);
 	    DamageDestroy(pExaPixmap->pDamage);
 	    pExaPixmap->pDamage = NULL;