Forgot to include this file in previous patch
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2006-02-16 Keith Packard <keithp@keithp.com>
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* miext/shadow/shrotpackYX.h:
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Forgot to include this file in previous patch
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2006-02-15 Keith Packard <keithp@keithp.com>
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* Makefile.am:
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162
miext/shadow/shrotpackYX.h
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162
miext/shadow/shrotpackYX.h
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/*
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* $Id$
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*
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* Copyright © 2004 Philip Blundell
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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 Philip Blundell 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. Philip Blundell 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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* PHILIP BLUNDELL 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 PHILIP BLUNDELL 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 <X11/X.h>
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#include "scrnintstr.h"
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#include "windowstr.h"
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#include "dixfontstr.h"
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#include "mi.h"
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#include "regionstr.h"
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#include "globals.h"
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#include "gcstruct.h"
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#include "shadow.h"
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#include "fb.h"
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#if ROTATE == 270
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#define WINSTEPX(stride) (stride)
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#define WINSTART(x,y) (((pScreen->height - 1) - y) + (x * winStride))
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#define WINSTEPY() -1
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#elif ROTATE == 90
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#define WINSTEPX(stride) (-stride)
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#define WINSTEPY() 1
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#define WINSTART(x,y) (((pScreen->width - 1 - x) * winStride) + y)
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#else
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#error This rotation is not supported here
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#endif
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#ifdef __arm__
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#define PREFETCH
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#endif
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void
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FUNC (ScreenPtr pScreen,
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shadowBufPtr pBuf);
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void
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FUNC (ScreenPtr pScreen,
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shadowBufPtr pBuf)
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{
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RegionPtr damage = shadowDamage(pBuf);
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PixmapPtr pShadow = pBuf->pPixmap;
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int nbox = REGION_NUM_RECTS (damage);
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BoxPtr pbox = REGION_RECTS (damage);
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FbBits *shaBits;
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Data *shaBase, *shaLine, *sha;
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FbStride shaStride, winStride;
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int shaBpp;
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int shaXoff, shaYoff; /* XXX assumed to be zero */
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int x, y, w, h;
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Data *winBase, *win, *winLine;
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CARD32 winSize;
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fbGetDrawable (&pShadow->drawable, shaBits, shaStride, shaBpp, shaXoff, shaYoff);
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shaBase = (Data *) shaBits;
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shaStride = shaStride * sizeof (FbBits) / sizeof (Data);
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winBase = (Data *) (*pBuf->window) (pScreen, 0, 0,
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SHADOW_WINDOW_WRITE,
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&winSize, pBuf->closure);
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winStride = (Data *) (*pBuf->window) (pScreen, 1, 0,
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SHADOW_WINDOW_WRITE,
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&winSize, pBuf->closure) - winBase;
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while (nbox--)
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{
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x = pbox->x1;
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y = pbox->y1;
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w = (pbox->x2 - pbox->x1);
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h = pbox->y2 - pbox->y1;
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shaLine = shaBase + (y * shaStride) + x;
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#ifdef PREFETCH
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__builtin_prefetch (shaLine);
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#endif
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winLine = winBase + WINSTART(x, y);
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while (h--)
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{
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sha = shaLine;
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win = winLine;
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while (sha < (shaLine + w - 16))
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{
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#ifdef PREFETCH
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__builtin_prefetch (sha + shaStride);
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#endif
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*win = *sha++;
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win += WINSTEPX(winStride);
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*win = *sha++;
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win += WINSTEPX(winStride);
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*win = *sha++;
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win += WINSTEPX(winStride);
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*win = *sha++;
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win += WINSTEPX(winStride);
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*win = *sha++;
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win += WINSTEPX(winStride);
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*win = *sha++;
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win += WINSTEPX(winStride);
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*win = *sha++;
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win += WINSTEPX(winStride);
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*win = *sha++;
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win += WINSTEPX(winStride);
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*win = *sha++;
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win += WINSTEPX(winStride);
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*win = *sha++;
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win += WINSTEPX(winStride);
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*win = *sha++;
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win += WINSTEPX(winStride);
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*win = *sha++;
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win += WINSTEPX(winStride);
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*win = *sha++;
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win += WINSTEPX(winStride);
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*win = *sha++;
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win += WINSTEPX(winStride);
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*win = *sha++;
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win += WINSTEPX(winStride);
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*win = *sha++;
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win += WINSTEPX(winStride);
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}
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while (sha < (shaLine + w))
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{
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*win = *sha++;
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win += WINSTEPX(winStride);
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}
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y++;
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shaLine += shaStride;
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winLine += WINSTEPY();
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}
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pbox++;
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} /* nbox */
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}
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