b9a21c3c91c47e090316e28d759194e46628ed49vboxsync/*
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync * Copyright © 2004 Philip Blundell
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync *
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync * Permission to use, copy, modify, distribute, and sell this software and its
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync * documentation for any purpose is hereby granted without fee, provided that
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync * the above copyright notice appear in all copies and that both that
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync * copyright notice and this permission notice appear in supporting
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync * documentation, and that the name of Philip Blundell not be used in
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync * advertising or publicity pertaining to distribution of the software without
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync * specific, written prior permission. Philip Blundell makes no
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync * representations about the suitability of this software for any purpose. It
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync * is provided "as is" without express or implied warranty.
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync *
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync * PHILIP BLUNDELL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync * EVENT SHALL PHILIP BLUNDELL BE LIABLE FOR ANY SPECIAL, INDIRECT OR
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync * PERFORMANCE OF THIS SOFTWARE.
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync */
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync#include <X11/X.h>
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync#include "scrnintstr.h"
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync#include "windowstr.h"
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync#include "dixfontstr.h"
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync#include "mi.h"
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync#include "regionstr.h"
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync#include "globals.h"
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync#include "gcstruct.h"
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync#include "shadow.h"
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync#include "fb.h"
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync#if ROTATE == 270
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync#define WINSTEPX(stride) (stride)
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync#define WINSTART(x,y) (((pScreen->height - 1) - y) + (x * winStride))
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync#define WINSTEPY() -1
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync#elif ROTATE == 90
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync#define WINSTEPX(stride) (-stride)
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync#define WINSTEPY() 1
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync#define WINSTART(x,y) (((pScreen->width - 1 - x) * winStride) + y)
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync#else
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync#error This rotation is not supported here
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync#endif
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync#ifdef __arm__
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync#define PREFETCH
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync#endif
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync
b9a21c3c91c47e090316e28d759194e46628ed49vboxsyncvoid
b9a21c3c91c47e090316e28d759194e46628ed49vboxsyncFUNC (ScreenPtr pScreen,
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync shadowBufPtr pBuf);
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync
b9a21c3c91c47e090316e28d759194e46628ed49vboxsyncvoid
b9a21c3c91c47e090316e28d759194e46628ed49vboxsyncFUNC (ScreenPtr pScreen,
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync shadowBufPtr pBuf)
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync{
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync RegionPtr damage = shadowDamage(pBuf);
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync PixmapPtr pShadow = pBuf->pPixmap;
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync int nbox = REGION_NUM_RECTS (damage);
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync BoxPtr pbox = REGION_RECTS (damage);
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync FbBits *shaBits;
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync Data *shaBase, *shaLine, *sha;
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync FbStride shaStride, winStride;
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync int shaBpp;
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync int shaXoff, shaYoff; /* XXX assumed to be zero */
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync int x, y, w, h;
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync Data *winBase, *win, *winLine;
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync CARD32 winSize;
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync fbGetDrawable (&pShadow->drawable, shaBits, shaStride, shaBpp, shaXoff, shaYoff);
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync shaBase = (Data *) shaBits;
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync shaStride = shaStride * sizeof (FbBits) / sizeof (Data);
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync winBase = (Data *) (*pBuf->window) (pScreen, 0, 0,
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync SHADOW_WINDOW_WRITE,
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync &winSize, pBuf->closure);
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync winStride = (Data *) (*pBuf->window) (pScreen, 1, 0,
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync SHADOW_WINDOW_WRITE,
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync &winSize, pBuf->closure) - winBase;
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync while (nbox--)
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync {
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync x = pbox->x1;
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync y = pbox->y1;
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync w = (pbox->x2 - pbox->x1);
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync h = pbox->y2 - pbox->y1;
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync shaLine = shaBase + (y * shaStride) + x;
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync#ifdef PREFETCH
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync __builtin_prefetch (shaLine);
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync#endif
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync winLine = winBase + WINSTART(x, y);
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync while (h--)
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync {
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync sha = shaLine;
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync win = winLine;
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync while (sha < (shaLine + w - 16))
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync {
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync#ifdef PREFETCH
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync __builtin_prefetch (sha + shaStride);
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync#endif
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync *win = *sha++;
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync win += WINSTEPX(winStride);
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync *win = *sha++;
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync win += WINSTEPX(winStride);
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync *win = *sha++;
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync win += WINSTEPX(winStride);
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync *win = *sha++;
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync win += WINSTEPX(winStride);
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync *win = *sha++;
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync win += WINSTEPX(winStride);
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync *win = *sha++;
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync win += WINSTEPX(winStride);
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync *win = *sha++;
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync win += WINSTEPX(winStride);
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync *win = *sha++;
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync win += WINSTEPX(winStride);
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync *win = *sha++;
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync win += WINSTEPX(winStride);
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync *win = *sha++;
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync win += WINSTEPX(winStride);
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync *win = *sha++;
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync win += WINSTEPX(winStride);
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync *win = *sha++;
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync win += WINSTEPX(winStride);
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync *win = *sha++;
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync win += WINSTEPX(winStride);
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync *win = *sha++;
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync win += WINSTEPX(winStride);
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync *win = *sha++;
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync win += WINSTEPX(winStride);
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync *win = *sha++;
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync win += WINSTEPX(winStride);
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync }
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync while (sha < (shaLine + w))
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync {
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync *win = *sha++;
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync win += WINSTEPX(winStride);
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync }
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync y++;
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync shaLine += shaStride;
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync winLine += WINSTEPY();
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync }
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync pbox++;
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync } /* nbox */
b9a21c3c91c47e090316e28d759194e46628ed49vboxsync}