415 lines
		
	
	
		
			12 KiB
		
	
	
	
		
			C
		
	
	
	
			
		
		
	
	
			415 lines
		
	
	
		
			12 KiB
		
	
	
	
		
			C
		
	
	
	
/*
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 *
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 * Copyright © 1999 Keith Packard
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 *
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 * Permission to use, copy, modify, distribute, and sell this software and its
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 * documentation for any purpose is hereby granted without fee, provided that
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 * the above copyright notice appear in all copies and that both that
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 * copyright notice and this permission notice appear in supporting
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 * documentation, and that the name of Keith Packard not be used in
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 * advertising or publicity pertaining to distribution of the software without
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 * specific, written prior permission.  Keith Packard makes no
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 * representations about the suitability of this software for any purpose.  It
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 * is provided "as is" without express or implied warranty.
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 *
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 * KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
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 * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
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 * EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR
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 * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
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 * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
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 * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
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 * PERFORMANCE OF THIS SOFTWARE.
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 */
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#include "exa_priv.h"
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#ifdef RENDER
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#include "mipict.h"
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#endif
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/*
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 * These functions wrap the low-level fb rendering functions and
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 * synchronize framebuffer/accelerated drawing by stalling until
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 * the accelerator is idle
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 */
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/**
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 * Calls exaPrepareAccess with EXA_PREPARE_SRC for the tile, if that is the
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 * current fill style.
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 *
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 * Solid doesn't use an extra pixmap source, and Stippled/OpaqueStippled are
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 * 1bpp and never in fb, so we don't worry about them.
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 * We should worry about them for completeness sake and going forward.
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 */
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void
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exaPrepareAccessGC(GCPtr pGC)
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{
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    if (pGC->stipple)
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        exaPrepareAccess(&pGC->stipple->drawable, EXA_PREPARE_MASK);
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    if (pGC->fillStyle == FillTiled)
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	exaPrepareAccess(&pGC->tile.pixmap->drawable, EXA_PREPARE_SRC);
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}
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/**
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 * Finishes access to the tile in the GC, if used.
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 */
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void
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exaFinishAccessGC(GCPtr pGC)
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{
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    if (pGC->fillStyle == FillTiled)
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	exaFinishAccess(&pGC->tile.pixmap->drawable, EXA_PREPARE_MASK);
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    if (pGC->stipple)
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        exaFinishAccess(&pGC->stipple->drawable, EXA_PREPARE_SRC);
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}
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#if DEBUG_TRACE_FALL
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char
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exaDrawableLocation(DrawablePtr pDrawable)
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{
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    return exaDrawableIsOffscreen(pDrawable) ? 's' : 'm';
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}
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#endif /* DEBUG_TRACE_FALL */
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void
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ExaCheckFillSpans (DrawablePtr pDrawable, GCPtr pGC, int nspans,
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		   DDXPointPtr ppt, int *pwidth, int fSorted)
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{
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    EXA_FALLBACK(("to %p (%c)\n", pDrawable, exaDrawableLocation(pDrawable)));
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    exaPrepareAccess (pDrawable, EXA_PREPARE_DEST);
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    exaPrepareAccessGC (pGC);
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    fbFillSpans (pDrawable, pGC, nspans, ppt, pwidth, fSorted);
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    exaFinishAccessGC (pGC);
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    exaFinishAccess (pDrawable, EXA_PREPARE_DEST);
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}
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void
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ExaCheckSetSpans (DrawablePtr pDrawable, GCPtr pGC, char *psrc,
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		 DDXPointPtr ppt, int *pwidth, int nspans, int fSorted)
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{
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    EXA_FALLBACK(("to %p (%c)\n", pDrawable, exaDrawableLocation(pDrawable)));
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    exaPrepareAccess (pDrawable, EXA_PREPARE_DEST);
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    fbSetSpans (pDrawable, pGC, psrc, ppt, pwidth, nspans, fSorted);
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    exaFinishAccess (pDrawable, EXA_PREPARE_DEST);
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}
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void
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ExaCheckPutImage (DrawablePtr pDrawable, GCPtr pGC, int depth,
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		 int x, int y, int w, int h, int leftPad, int format,
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		 char *bits)
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{
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    ExaPixmapPriv(exaGetDrawablePixmap(pDrawable));
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    EXA_FALLBACK(("to %p (%c)\n", pDrawable, exaDrawableLocation(pDrawable)));
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    if (exaGCReadsDestination(pDrawable, pGC->planemask, pGC->fillStyle,
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			      pGC->alu))
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	exaPrepareAccess (pDrawable, EXA_PREPARE_DEST);
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    else
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	exaPrepareAccessReg (pDrawable, EXA_PREPARE_DEST,
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			     DamagePendingRegion(pExaPixmap->pDamage));
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    fbPutImage (pDrawable, pGC, depth, x, y, w, h, leftPad, format, bits);
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    exaFinishAccess (pDrawable, EXA_PREPARE_DEST);
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}
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RegionPtr
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ExaCheckCopyArea (DrawablePtr pSrc, DrawablePtr pDst, GCPtr pGC,
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		 int srcx, int srcy, int w, int h, int dstx, int dsty)
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{
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    RegionPtr ret;
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    EXA_FALLBACK(("from %p to %p (%c,%c)\n", pSrc, pDst,
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		  exaDrawableLocation(pSrc), exaDrawableLocation(pDst)));
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    exaPrepareAccess (pDst, EXA_PREPARE_DEST);
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    exaPrepareAccess (pSrc, EXA_PREPARE_SRC);
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    ret = fbCopyArea (pSrc, pDst, pGC, srcx, srcy, w, h, dstx, dsty);
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    exaFinishAccess (pSrc, EXA_PREPARE_SRC);
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    exaFinishAccess (pDst, EXA_PREPARE_DEST);
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    return ret;
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}
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RegionPtr
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ExaCheckCopyPlane (DrawablePtr pSrc, DrawablePtr pDst, GCPtr pGC,
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		  int srcx, int srcy, int w, int h, int dstx, int dsty,
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		  unsigned long bitPlane)
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{
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    RegionPtr ret;
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    EXA_FALLBACK(("from %p to %p (%c,%c)\n", pSrc, pDst,
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		  exaDrawableLocation(pSrc), exaDrawableLocation(pDst)));
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    exaPrepareAccess (pDst, EXA_PREPARE_DEST);
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    exaPrepareAccess (pSrc, EXA_PREPARE_SRC);
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    ret = fbCopyPlane (pSrc, pDst, pGC, srcx, srcy, w, h, dstx, dsty,
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		       bitPlane);
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    exaFinishAccess (pSrc, EXA_PREPARE_SRC);
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    exaFinishAccess (pDst, EXA_PREPARE_DEST);
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    return ret;
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}
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void
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ExaCheckPolyPoint (DrawablePtr pDrawable, GCPtr pGC, int mode, int npt,
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		  DDXPointPtr pptInit)
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{
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    EXA_FALLBACK(("to %p (%c)\n", pDrawable, exaDrawableLocation(pDrawable)));
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    exaPrepareAccess (pDrawable, EXA_PREPARE_DEST);
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    fbPolyPoint (pDrawable, pGC, mode, npt, pptInit);
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    exaFinishAccess (pDrawable, EXA_PREPARE_DEST);
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}
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void
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ExaCheckPolylines (DrawablePtr pDrawable, GCPtr pGC,
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		  int mode, int npt, DDXPointPtr ppt)
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{
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    EXA_FALLBACK(("to %p (%c), width %d, mode %d, count %d\n",
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		  pDrawable, exaDrawableLocation(pDrawable),
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		  pGC->lineWidth, mode, npt));
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    if (pGC->lineWidth == 0) {
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	exaPrepareAccess (pDrawable, EXA_PREPARE_DEST);
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	exaPrepareAccessGC (pGC);
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	fbPolyLine (pDrawable, pGC, mode, npt, ppt);
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	exaFinishAccessGC (pGC);
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	exaFinishAccess (pDrawable, EXA_PREPARE_DEST);
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	return;
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    }
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    /* fb calls mi functions in the lineWidth != 0 case. */
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    fbPolyLine (pDrawable, pGC, mode, npt, ppt);
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}
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void
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ExaCheckPolySegment (DrawablePtr pDrawable, GCPtr pGC,
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		    int nsegInit, xSegment *pSegInit)
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{
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    EXA_FALLBACK(("to %p (%c) width %d, count %d\n", pDrawable,
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		  exaDrawableLocation(pDrawable), pGC->lineWidth, nsegInit));
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    if (pGC->lineWidth == 0) {
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	exaPrepareAccess (pDrawable, EXA_PREPARE_DEST);
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	exaPrepareAccessGC (pGC);
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	fbPolySegment (pDrawable, pGC, nsegInit, pSegInit);
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	exaFinishAccessGC (pGC);
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	exaFinishAccess (pDrawable, EXA_PREPARE_DEST);
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	return;
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    }
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    /* fb calls mi functions in the lineWidth != 0 case. */
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    fbPolySegment (pDrawable, pGC, nsegInit, pSegInit);
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}
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void
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ExaCheckPolyArc (DrawablePtr pDrawable, GCPtr pGC,
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		int narcs, xArc *pArcs)
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{
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    EXA_FALLBACK(("to %p (%c)\n", pDrawable, exaDrawableLocation(pDrawable)));
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    /* Disable this as fbPolyArc can call miZeroPolyArc which in turn
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     * can call accelerated functions, that as yet, haven't been notified
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     * with exaFinishAccess().
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     */
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#if 0
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    if (pGC->lineWidth == 0)
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    {
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	exaPrepareAccess (pDrawable, EXA_PREPARE_DEST);
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	exaPrepareAccessGC (pGC);
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	fbPolyArc (pDrawable, pGC, narcs, pArcs);
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	exaFinishAccessGC (pGC);
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	exaFinishAccess (pDrawable, EXA_PREPARE_DEST);
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	return;
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    }
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#endif
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    miPolyArc (pDrawable, pGC, narcs, pArcs);
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}
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void
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ExaCheckPolyFillRect (DrawablePtr pDrawable, GCPtr pGC,
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		     int nrect, xRectangle *prect)
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{
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    EXA_FALLBACK(("to %p (%c)\n", pDrawable, exaDrawableLocation(pDrawable)));
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    exaPrepareAccess (pDrawable, EXA_PREPARE_DEST);
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    exaPrepareAccessGC (pGC);
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    fbPolyFillRect (pDrawable, pGC, nrect, prect);
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    exaFinishAccessGC (pGC);
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    exaFinishAccess (pDrawable, EXA_PREPARE_DEST);
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}
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void
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ExaCheckImageGlyphBlt (DrawablePtr pDrawable, GCPtr pGC,
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		      int x, int y, unsigned int nglyph,
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		      CharInfoPtr *ppci, pointer pglyphBase)
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{
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    EXA_FALLBACK(("to %p (%c)\n", pDrawable,
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		  exaDrawableLocation(pDrawable)));
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    exaPrepareAccess (pDrawable, EXA_PREPARE_DEST);
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    exaPrepareAccessGC (pGC);
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    fbImageGlyphBlt (pDrawable, pGC, x, y, nglyph, ppci, pglyphBase);
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    exaFinishAccessGC (pGC);
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    exaFinishAccess (pDrawable, EXA_PREPARE_DEST);
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}
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void
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ExaCheckPolyGlyphBlt (DrawablePtr pDrawable, GCPtr pGC,
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		     int x, int y, unsigned int nglyph,
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		     CharInfoPtr *ppci, pointer pglyphBase)
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{
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    EXA_FALLBACK(("to %p (%c), style %d alu %d\n", pDrawable,
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		  exaDrawableLocation(pDrawable), pGC->fillStyle, pGC->alu));
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    exaPrepareAccess (pDrawable, EXA_PREPARE_DEST);
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    exaPrepareAccessGC (pGC);
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    fbPolyGlyphBlt (pDrawable, pGC, x, y, nglyph, ppci, pglyphBase);
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    exaFinishAccessGC (pGC);
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    exaFinishAccess (pDrawable, EXA_PREPARE_DEST);
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}
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void
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ExaCheckPushPixels (GCPtr pGC, PixmapPtr pBitmap,
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		   DrawablePtr pDrawable,
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		   int w, int h, int x, int y)
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{
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    EXA_FALLBACK(("from %p to %p (%c,%c)\n", pBitmap, pDrawable,
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		  exaDrawableLocation(&pBitmap->drawable),
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		  exaDrawableLocation(pDrawable)));
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    exaPrepareAccess (pDrawable, EXA_PREPARE_DEST);
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    exaPrepareAccess (&pBitmap->drawable, EXA_PREPARE_SRC);
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    exaPrepareAccessGC (pGC);
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    fbPushPixels (pGC, pBitmap, pDrawable, w, h, x, y);
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    exaFinishAccessGC (pGC);
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    exaFinishAccess (&pBitmap->drawable, EXA_PREPARE_SRC);
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    exaFinishAccess (pDrawable, EXA_PREPARE_DEST);
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}
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void
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ExaCheckGetSpans (DrawablePtr pDrawable,
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		 int wMax,
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		 DDXPointPtr ppt,
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		 int *pwidth,
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		 int nspans,
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		 char *pdstStart)
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{
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    EXA_FALLBACK(("from %p (%c)\n", pDrawable, exaDrawableLocation(pDrawable)));
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    exaPrepareAccess (pDrawable, EXA_PREPARE_SRC);
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    fbGetSpans (pDrawable, wMax, ppt, pwidth, nspans, pdstStart);
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    exaFinishAccess (pDrawable, EXA_PREPARE_SRC);
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}
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void
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ExaCheckComposite (CARD8      op,
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                   PicturePtr pSrc,
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                   PicturePtr pMask,
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                   PicturePtr pDst,
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                   INT16      xSrc,
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                   INT16      ySrc,
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                   INT16      xMask,
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                   INT16      yMask,
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                   INT16      xDst,
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                   INT16      yDst,
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                   CARD16     width,
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                   CARD16     height)
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{
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    RegionRec region;
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    int xoff, yoff;
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    REGION_NULL(pScreen, ®ion);
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    if (!exaOpReadsDestination(op)) {
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	if (!miComputeCompositeRegion (®ion, pSrc, pMask, pDst,
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				       xSrc, ySrc, xMask, yMask, xDst, yDst,
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				       width, height))
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	    return;
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	exaGetDrawableDeltas (pDst->pDrawable,
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			      exaGetDrawablePixmap(pDst->pDrawable),
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			      &xoff, &yoff);
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	REGION_TRANSLATE(pScreen, ®ion, xoff, yoff);
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	exaPrepareAccessReg (pDst->pDrawable, EXA_PREPARE_DEST, ®ion);
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    } else
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	exaPrepareAccess (pDst->pDrawable, EXA_PREPARE_DEST);
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    EXA_FALLBACK(("from picts %p/%p to pict %p\n",
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		 pSrc, pMask, pDst));
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    if (pSrc->pDrawable != NULL)
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	exaPrepareAccess (pSrc->pDrawable, EXA_PREPARE_SRC);
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    if (pMask && pMask->pDrawable != NULL)
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	exaPrepareAccess (pMask->pDrawable, EXA_PREPARE_MASK);
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    fbComposite (op,
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                 pSrc,
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                 pMask,
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                 pDst,
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                 xSrc,
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                 ySrc,
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                 xMask,
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                 yMask,
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                 xDst,
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                 yDst,
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                 width,
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                 height);
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    if (pMask && pMask->pDrawable != NULL)
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	exaFinishAccess (pMask->pDrawable, EXA_PREPARE_MASK);
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    if (pSrc->pDrawable != NULL)
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	exaFinishAccess (pSrc->pDrawable, EXA_PREPARE_SRC);
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    exaFinishAccess (pDst->pDrawable, EXA_PREPARE_DEST);
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    REGION_UNINIT(pScreen, ®ion);
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}
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/**
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 * Gets the 0,0 pixel of a pixmap.  Used for doing solid fills of tiled pixmaps
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 * that happen to be 1x1.  Pixmap must be at least 8bpp.
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 *
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 * XXX This really belongs in fb, so it can be aware of tiling and etc.
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 */
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CARD32
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exaGetPixmapFirstPixel (PixmapPtr pPixmap)
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{
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    ExaScreenPriv(pPixmap->drawable.pScreen);
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    CARD32 pixel;
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    void *fb;
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    Bool need_finish = FALSE;
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    BoxRec box;
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    RegionRec migration;
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    ExaPixmapPriv (pPixmap);
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    Bool sys_valid = !miPointInRegion(&pExaPixmap->validSys, 0, 0,  &box);
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    Bool damaged = miPointInRegion(DamageRegion(pExaPixmap->pDamage), 0, 0,
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				   &box);
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    Bool offscreen = exaPixmapIsOffscreen(pPixmap);
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    fb = pExaPixmap->sys_ptr;
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    /* Try to avoid framebuffer readbacks */
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    if (pExaScr->info->CreatePixmap ||
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	(!offscreen && !sys_valid && !damaged) ||
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	(offscreen && (!sys_valid || damaged)))
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    {
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	box.x1 = 0;
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	box.y1 = 0;
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	box.x2 = 1;
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	box.y2 = 1;
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	REGION_INIT(pScreen, &migration, &box, 1);
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	need_finish = TRUE;
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 | 
						|
	exaPrepareAccessReg(&pPixmap->drawable, EXA_PREPARE_SRC, &migration);
 | 
						|
	fb = pPixmap->devPrivate.ptr;
 | 
						|
    }
 | 
						|
 | 
						|
    switch (pPixmap->drawable.bitsPerPixel) {
 | 
						|
    case 32:
 | 
						|
	pixel = *(CARD32 *)fb;
 | 
						|
	break;
 | 
						|
    case 16:
 | 
						|
	pixel = *(CARD16 *)fb;
 | 
						|
	break;
 | 
						|
    default:
 | 
						|
	pixel = *(CARD8 *)fb;
 | 
						|
	break;
 | 
						|
    }
 | 
						|
 | 
						|
    if (need_finish) {
 | 
						|
	exaFinishAccess(&pPixmap->drawable, EXA_PREPARE_SRC);
 | 
						|
	REGION_UNINIT(pScreen, &migration);
 | 
						|
    }
 | 
						|
 | 
						|
    return pixel;
 | 
						|
}
 |