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EXA/mixed: ModifyPixmapHeader pitch fixes. (bug #33929)

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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@vmware.com>
Acked-by: Cyril Brulebois <kibi@debian.org>
Tested-by: Cyril Brulebois <kibi@debian.org>
Reported-by: Thierry Vignaud <thierry.vignaud@gmail.com>
Tested-by: Thierry Vignaud <thierry.vignaud@gmail.com>
Signed-off-by: Keith Packard <keithp@keithp.com>
This commit is contained in:
Michel Dänzer 2011-02-24 12:17:57 +01:00 committed by Keith Packard
parent 8386159578
commit 31704510f4
1 changed files with 5 additions and 4 deletions
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9
exa/exa_mixed.c
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@ -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;