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exa/mixed: fix gnome-panel corruption 

- A mapped pixmap can't be used for acceleration, any decent memory manager
will refuse this.
- Source pixmaps migrated with a bounding region are incomplete (from the
gpu point of view), so do the upload unconditionally, instead of just for
deferred destination pixmaps.
- Fixes fd.o bug #26076.

Signed-off-by: Maarten Maathuis <madman2003@gmail.com>
Acked-by: Michel Dänzer <michel@daenzer.net>
Signed-off-by: Keith Packard <keithp@keithp.com>
This commit is contained in:
Maarten Maathuis 2010-02-17 11:40:43 +01:00 committed by Keith Packard
parent 5b9a52be7e
commit 9623daad7c
1 changed files with 13 additions and 8 deletions
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21
exa/exa_migration_mixed.c
View File

@ -165,8 +165,20 @@ void
exaPrepareAccessReg_mixed(PixmapPtr pPixmap, int index, RegionPtr pReg)
{
ExaPixmapPriv(pPixmap);
Bool success;
if (!ExaDoPrepareAccess(pPixmap, index)) {
if ((success = ExaDoPrepareAccess(pPixmap, index)) &&
pExaPixmap->pDamage && exaPixmapHasGpuCopy(pPixmap)) {
/* You cannot do accelerated operations while a buffer is mapped. */
exaFinishAccess(&pPixmap->drawable, index);
/* Update the gpu view of both deferred destination pixmaps and of
* source pixmaps that were migrated with a bounding region.
*/
exaMoveInPixmap_mixed(pPixmap);
success = ExaDoPrepareAccess(pPixmap, index);
}
if (!success) {
Bool has_gpu_copy = exaPixmapHasGpuCopy(pPixmap);
ExaMigrationRec pixmaps[1];
@ -231,13 +243,6 @@ exaPrepareAccessReg_mixed(PixmapPtr pPixmap, int index, RegionPtr pReg)
/* We have a gpu pixmap that can be accessed, we don't need the cpu copy
* anymore. Drivers that prefer DFS, should fail prepare access. */
} else if (pExaPixmap->pDamage && exaPixmapHasGpuCopy(pPixmap)) {
ExaScreenPriv(pPixmap->drawable.pScreen);
/* Copy back any deferred content if needed. */
if (pExaScr->deferred_mixed_pixmap &&
pExaScr->deferred_mixed_pixmap == pPixmap)
exaMoveInPixmap_mixed(pPixmap);
DamageUnregister(&pPixmap->drawable, pExaPixmap->pDamage);
DamageDestroy(pExaPixmap->pDamage);
pExaPixmap->pDamage = NULL;