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-rw-r--r--exa/exa_unaccel.c25
1 files changed, 24 insertions, 1 deletions
diff --git a/exa/exa_unaccel.c b/exa/exa_unaccel.c
index c821f0da8..9a0b0e5af 100644
--- a/exa/exa_unaccel.c
+++ b/exa/exa_unaccel.c
@@ -392,6 +392,15 @@ ExaCheckComposite (CARD8 op,
REGION_NULL(pScreen, &region);
+ /* We need to prepare access to any separate alpha maps first, in case the
+ * driver doesn't support EXA_PREPARE_AUX*, in which case EXA_PREPARE_SRC
+ * may be used for moving them out.
+ */
+ if (pSrc->alphaMap && pSrc->alphaMap->pDrawable)
+ exaPrepareAccess(pSrc->alphaMap->pDrawable, EXA_PREPARE_AUX2);
+ if (pMask && pMask->alphaMap && pMask->alphaMap->pDrawable)
+ exaPrepareAccess(pMask->alphaMap->pDrawable, EXA_PREPARE_AUX1);
+
if (!exaOpReadsDestination(op)) {
if (!miComputeCompositeRegion (&region, pSrc, pMask, pDst,
xSrc, ySrc, xMask, yMask, xDst, yDst,
@@ -404,9 +413,17 @@ ExaCheckComposite (CARD8 op,
REGION_TRANSLATE(pScreen, &region, xoff, yoff);
+ if (pDst->alphaMap && pDst->alphaMap->pDrawable)
+ exaPrepareAccessReg(pDst->alphaMap->pDrawable, EXA_PREPARE_AUX0,
+ &region);
+
exaPrepareAccessReg (pDst->pDrawable, EXA_PREPARE_DEST, &region);
- } else
+ } else {
+ if (pDst->alphaMap && pDst->alphaMap->pDrawable)
+ exaPrepareAccess(pDst->alphaMap->pDrawable, EXA_PREPARE_AUX0);
+
exaPrepareAccess (pDst->pDrawable, EXA_PREPARE_DEST);
+ }
EXA_FALLBACK(("from picts %p/%p to pict %p\n",
pSrc, pMask, pDst));
@@ -433,9 +450,15 @@ ExaCheckComposite (CARD8 op,
#endif /* RENDER */
if (pMask && pMask->pDrawable != NULL)
exaFinishAccess (pMask->pDrawable, EXA_PREPARE_MASK);
+ if (pMask && pMask->alphaMap && pMask->alphaMap->pDrawable)
+ exaFinishAccess(pMask->alphaMap->pDrawable, EXA_PREPARE_AUX1);
if (pSrc->pDrawable != NULL)
exaFinishAccess (pSrc->pDrawable, EXA_PREPARE_SRC);
+ if (pSrc->alphaMap && pSrc->alphaMap->pDrawable)
+ exaFinishAccess(pSrc->alphaMap->pDrawable, EXA_PREPARE_AUX2);
exaFinishAccess (pDst->pDrawable, EXA_PREPARE_DEST);
+ if (pDst->alphaMap && pDst->alphaMap->pDrawable)
+ exaFinishAccess(pDst->alphaMap->pDrawable, EXA_PREPARE_AUX0);
REGION_UNINIT(pScreen, &region);
}