Attachment 44478 Details for Bug 35197 – EXA: Avoid GPU memory readback on ImageGlyphBlt fallback.

[patch] EXA: Avoid GPU memory readback on ImageGlyphBlt fallback.

exa_unaccel.c.diff (text/plain), 1.02 KB, created by Michel Dänzer on 2011-03-15 09:08:55 UTC

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Creator: Michel Dänzer

Created: 2011-03-15 09:08:55 UTC

Size: 1.02 KB

patch

obsolete

>diff --git a/exa/exa_unaccel.c b/exa/exa_unaccel.c
>index bd533c4..7e4499e 100644
>--- a/exa/exa_unaccel.c
>+++ b/exa/exa_unaccel.c
>@@ -320,10 +320,19 @@ ExaCheckImageGlyphBlt (DrawablePtr pDrawable, GCPtr pGC,
> 		      int x, int y, unsigned int nglyph,
> 		      CharInfoPtr *ppci, pointer pglyphBase)
> {
>+    PixmapPtr pPixmap = exaGetDrawablePixmap(pDrawable);
>+    ExaPixmapPriv(pPixmap);
>+
>     EXA_PRE_FALLBACK_GC(pGC);
>     EXA_FALLBACK(("to %p (%c)\n", pDrawable,
> 		  exaDrawableLocation(pDrawable)));
>-    exaPrepareAccess (pDrawable, EXA_PREPARE_DEST);
>+    if (!pExaScr->prepare_access_reg || !pExaPixmap->pDamage ||
>+	exaGCReadsDestination(pDrawable, pGC->planemask, pGC->fillStyle,
>+			      pGC->alu, pGC->clientClipType))
>+	exaPrepareAccess (pDrawable, EXA_PREPARE_DEST);
>+    else
>+	pExaScr->prepare_access_reg(pPixmap, EXA_PREPARE_DEST,
>+				    DamagePendingRegion(pExaPixmap->pDamage));
>     exaPrepareAccessGC (pGC);
>     pGC->ops->ImageGlyphBlt (pDrawable, pGC, x, y, nglyph, ppci, pglyphBase);
>     exaFinishAccessGC (pGC);

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Attachments on bug 35197: 44478

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