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/*
* Copyright 2001 by Alan Hourihane, Sychdyn, North Wales, UK.
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
* the above copyright notice appear in all copies and that both that
* copyright notice and this permission notice appear in supporting
* documentation, and that the name of Alan Hourihane not be used in
* advertising or publicity pertaining to distribution of the software without
* specific, written prior permission. Alan Hourihane makes no representations
* about the suitability of this software for any purpose. It is provided
* "as is" without express or implied warranty.
*
* ALAN HOURIHANE DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
* EVENT SHALL ALAN HOURIHANE BE LIABLE FOR ANY SPECIAL, INDIRECT OR
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
* PERFORMANCE OF THIS SOFTWARE.
*
* Authors: Alan Hourihane, <alanh@fairlite.demon.co.uk>
*/
/* $RCSId: xc/programs/Xserver/hw/kdrive/pcmcia/pcmciashadow.c,v 1.1 2001/05/23 08:56:09 alanh Exp $ */
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <X11/X.h>
#include "scrnintstr.h"
#include "windowstr.h"
#include "font.h"
#include "dixfontstr.h"
#include "fontstruct.h"
#include "mi.h"
#include "regionstr.h"
#include "globals.h"
#include "gcstruct.h"
#include "shadow.h"
#include "fb.h"
void
tridentUpdatePacked (ScreenPtr pScreen,
shadowBufPtr pBuf)
{
RegionPtr damage = &pBuf->damage;
PixmapPtr pShadow = pBuf->pPixmap;
shadowScrPriv(pScreen);
int nbox = REGION_NUM_RECTS (damage);
BoxPtr pbox = REGION_RECTS (damage);
FbBits *shaBase, *shaLine, *sha;
FbStride shaStride;
int scrBase, scrLine, scr;
int shaBpp;
int shaXoff, shaYoff; /* XXX assumed to be zero */
int x, y, w, h, width;
int i;
FbBits *winBase, *win;
CARD32 winSize;
fbGetDrawable (&pShadow->drawable, shaBase, shaStride, shaBpp, shaXoff, shaYoff);
while (nbox--)
{
x = pbox->x1 * shaBpp;
y = pbox->y1;
w = (pbox->x2 - pbox->x1) * shaBpp;
h = pbox->y2 - pbox->y1;
scrLine = (x >> FB_SHIFT);
shaLine = shaBase + y * shaStride + (x >> FB_SHIFT);
x &= FB_MASK;
w = (w + x + FB_MASK) >> FB_SHIFT;
while (h--)
{
winSize = 0;
scrBase = 0;
width = w;
scr = scrLine;
sha = shaLine;
while (width) {
/* how much remains in this window */
i = scrBase + winSize - scr;
if (i <= 0 || scr < scrBase)
{
winBase = (FbBits *) (*pBuf->window) (pScreen,
y,
scr * sizeof (FbBits),
SHADOW_WINDOW_WRITE,
&winSize,
pBuf->closure);
if(!winBase)
return;
scrBase = scr;
winSize /= sizeof (FbBits);
i = winSize;
}
win = winBase + (scr - scrBase);
if (i > width)
i = width;
width -= i;
scr += i;
{
CARD16 *sha16 = (CARD16*)sha;
CARD16 *win16 = (CARD16*)win;
while (i--)
{
*win16++ = *sha16++;
*win16++ = *sha16++;
}
}
}
shaLine += shaStride;
y++;
}
pbox++;
}
}
void
cirrusUpdatePacked (ScreenPtr pScreen,
shadowBufPtr pBuf)
{
RegionPtr damage = &pBuf->damage;
PixmapPtr pShadow = pBuf->pPixmap;
shadowScrPriv(pScreen);
int nbox = REGION_NUM_RECTS (damage);
BoxPtr pbox = REGION_RECTS (damage);
FbBits *shaBase, *shaLine, *sha;
FbStride shaStride;
int scrBase, scrLine, scr;
int shaBpp;
int shaXoff, shaYoff; /* XXX assumed to be zero */
int x, y, w, h, width;
int i;
FbBits *winBase, *win;
CARD32 winSize;
fbGetDrawable (&pShadow->drawable, shaBase, shaStride, shaBpp, shaXoff, shaYoff);
while (nbox--)
{
x = pbox->x1 * shaBpp;
y = pbox->y1;
w = (pbox->x2 - pbox->x1) * shaBpp;
h = pbox->y2 - pbox->y1;
scrLine = (x >> FB_SHIFT);
shaLine = shaBase + y * shaStride + (x >> FB_SHIFT);
x &= FB_MASK;
w = (w + x + FB_MASK) >> FB_SHIFT;
while (h--)
{
winSize = 0;
scrBase = 0;
width = w;
scr = scrLine;
sha = shaLine;
while (width) {
/* how much remains in this window */
i = scrBase + winSize - scr;
if (i <= 0 || scr < scrBase)
{
winBase = (FbBits *) (*pBuf->window) (pScreen,
y,
scr * sizeof (FbBits),
SHADOW_WINDOW_WRITE,
&winSize,
pBuf->closure);
if(!winBase)
return;
scrBase = scr;
winSize /= sizeof (FbBits);
i = winSize;
}
win = winBase + (scr - scrBase);
if (i > width)
i = width;
width -= i;
scr += i;
{
CARD8 *sha8 = (CARD8*)sha;
CARD8 *win8 = (CARD8*)win;
while (i--)
{
*win8++ = *sha8++;
*win8++ = *sha8++;
*win8++ = *sha8++;
*win8++ = *sha8++;
}
}
}
shaLine += shaStride;
y++;
}
pbox++;
}
}
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