From: Michel Dänzer <[email protected]> In particular, make sure pExaScr->src/maskPix are cleared when the corresponding pictures aren't associated with drawables, i.e. solid or gradient pictures. Without this, we would in some cases associate the source/mask region with unrelated pixmaps from previous Composite fallbacks, resulting in random corruption.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=47266 Signed-off-by: Michel Dänzer <[email protected]> Reviewed-by: Alex Deucher <[email protected]> --- v2: Rebased on top of server-1.13-branch. exa/exa_priv.h | 1 + exa/exa_unaccel.c | 16 ++++++++++++---- 2 files changed, 13 insertions(+), 4 deletions(-) diff --git a/exa/exa_priv.h b/exa/exa_priv.h index ea7e7fa..2e4759d 100644 --- a/exa/exa_priv.h +++ b/exa/exa_priv.h @@ -209,6 +209,7 @@ typedef struct { RegionRec srcReg; RegionRec maskReg; PixmapPtr srcPix; + PixmapPtr maskPix; DevPrivateKeyRec pixmapPrivateKeyRec; DevPrivateKeyRec gcPrivateKeyRec; diff --git a/exa/exa_unaccel.c b/exa/exa_unaccel.c index 5716138..b0a0011 100644 --- a/exa/exa_unaccel.c +++ b/exa/exa_unaccel.c @@ -442,6 +442,13 @@ ExaSrcValidate(DrawablePtr pDrawable, RegionPtr dst; int xoff, yoff; + if (pExaScr->srcPix == pPix) + dst = &pExaScr->srcReg; + else if (pExaScr->maskPix == pPix) + dst = &pExaScr->maskReg; + else + return; + exaGetDrawableDeltas(pDrawable, pPix, &xoff, &yoff); box.x1 = x + xoff; @@ -449,8 +456,6 @@ ExaSrcValidate(DrawablePtr pDrawable, box.x2 = box.x1 + width; box.y2 = box.y1 + height; - dst = (pExaScr->srcPix == pPix) ? &pExaScr->srcReg : &pExaScr->maskReg; - RegionInit(®, &box, 1); RegionUnion(dst, dst, ®); RegionUninit(®); @@ -495,16 +500,19 @@ ExaPrepareCompositeReg(ScreenPtr pScreen, if (pSrc != pDst) RegionTranslate(pSrc->pCompositeClip, -pSrc->pDrawable->x, -pSrc->pDrawable->y); - } + } else + pExaScr->srcPix = NULL; if (pMask && pMask->pDrawable) { pMaskPix = exaGetDrawablePixmap(pMask->pDrawable); RegionNull(&pExaScr->maskReg); maskReg = &pExaScr->maskReg; + pExaScr->maskPix = pMaskPix; if (pMask != pDst && pMask != pSrc) RegionTranslate(pMask->pCompositeClip, -pMask->pDrawable->x, -pMask->pDrawable->y); - } + } else + pExaScr->maskPix = NULL; RegionTranslate(pDst->pCompositeClip, -pDst->pDrawable->x, -pDst->pDrawable->y); -- 1.7.10.4 _______________________________________________ [email protected]: X.Org development Archives: http://lists.x.org/archives/xorg-devel Info: http://lists.x.org/mailman/listinfo/xorg-devel
