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EXA: avoid copy operations if no boxes in use 

Simple fix for now, I'm sure damage shouldn't be calling us with nbox = 0.
This commit is contained in:
Dave Airlie 2008-11-17 10:24:39 +10:00
parent 03f7a66a1a
commit 8f8a9c19ad
1 changed files with 4 additions and 0 deletions
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4
exa/exa_accel.c
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@ -401,6 +401,10 @@ exaCopyNtoN (DrawablePtr pSrcDrawable,
RegionPtr srcregion = NULL, dstregion = NULL; RegionPtr srcregion = NULL, dstregion = NULL;
xRectangle *rects; xRectangle *rects;
/* avoid doing copy operations if no boxes */
if (nbox == 0)
return;
pSrcPixmap = exaGetDrawablePixmap (pSrcDrawable); pSrcPixmap = exaGetDrawablePixmap (pSrcDrawable);
pDstPixmap = exaGetDrawablePixmap (pDstDrawable); pDstPixmap = exaGetDrawablePixmap (pDstDrawable);