176 lines
4.9 KiB
C
176 lines
4.9 KiB
C
|
/*
|
||
|
|
*
|
||
|
|
* Copyright © 2000 Keith Packard
|
||
|
|
*
|
||
|
|
* 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 Keith Packard not be used in
|
||
|
|
* advertising or publicity pertaining to distribution of the software without
|
||
|
|
* specific, written prior permission. Keith Packard makes no
|
||
|
|
* representations about the suitability of this software for any purpose. It
|
||
|
|
* is provided "as is" without express or implied warranty.
|
||
|
|
*
|
||
|
|
* KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
|
||
|
|
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
|
||
|
|
* EVENT SHALL KEITH PACKARD 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.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifdef HAVE_DIX_CONFIG_H
|
||
|
|
#include <dix-config.h>
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#include <stdlib.h>
|
||
|
|
|
||
|
|
#include <X11/X.h>
|
||
|
|
#include "scrnintstr.h"
|
||
|
|
#include "windowstr.h"
|
||
|
|
#include <X11/fonts/font.h>
|
||
|
|
#include "dixfontstr.h"
|
||
|
|
#include <X11/fonts/fontstruct.h>
|
||
|
|
#include "mi.h"
|
||
|
|
#include "regionstr.h"
|
||
|
|
#include "globals.h"
|
||
|
|
#include "gcstruct.h"
|
||
|
|
#include "shadow.h"
|
||
|
|
#include "fb.h"
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Expose 8bpp depth 4
|
||
|
|
*/
|
||
|
|
|
||
|
|
/*
|
||
|
|
* 32->8 conversion:
|
||
|
|
*
|
||
|
|
* 7 6 5 4 3 2 1 0
|
||
|
|
* A B C D E F G H
|
||
|
|
*
|
||
|
|
* 3 3 2 2 2 2 2 2 2 2 2 2 1 1 1 1 1 1 1 1 1 1
|
||
|
|
* 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0
|
||
|
|
* m1 D x x x x x x x C x x x x x x x B x x x x x x x A x x x x x x x sha[0] << (7-(p))
|
||
|
|
* m2 x x x x H x x x x x x x G x x x x x x x F x x x x x x x E x x x sha[1] << (3-(p))
|
||
|
|
* m3 D C B A m1 & 0x80808080
|
||
|
|
* m4 H G F E m2 & 0x08080808
|
||
|
|
* m5 D H C G B F A E m3 | m4
|
||
|
|
* m6 D H C G B F m5 >> 9
|
||
|
|
* m7 D H C D G H B C F G A B E F m5 | m6
|
||
|
|
* m8 D H C D G H m7 >> 18
|
||
|
|
* m9 D H C D G H B C D F G H A B C D E F G H m7 | m8
|
||
|
|
*/
|
||
|
|
|
||
|
|
#define PL_SHIFT 8
|
||
|
|
#define PL_UNIT (1 << PL_SHIFT)
|
||
|
|
#define PL_MASK (PL_UNIT - 1)
|
||
|
|
|
||
|
|
#if 0
|
||
|
|
#define GetBits(p,o,d) { \
|
||
|
|
CARD32 m1,m2,m3,m4,m5,m6,m7,m8; \
|
||
|
|
m1 = sha[o] << (7 - (p)); \
|
||
|
|
m2 = sha[(o)+1] << (3 - (p)); \
|
||
|
|
m3 = m1 & 0x80808080; \
|
||
|
|
m4 = m2 & 0x08080808; \
|
||
|
|
m5 = m3 | m4; \
|
||
|
|
m6 = m5 >> 9; \
|
||
|
|
m7 = m5 | m6; \
|
||
|
|
m8 = m7 >> 18; \
|
||
|
|
d = m7 | m8; \
|
||
|
|
}
|
||
|
|
#else
|
||
|
|
#define GetBits(p,o,d) { \
|
||
|
|
CARD32 m5,m7; \
|
||
|
|
m5 = ((sha[o] << (7 - (p))) & 0x80808080) | ((sha[(o)+1] << (3 - (p))) & 0x08080808); \
|
||
|
|
m7 = m5 | (m5 >> 9); \
|
||
|
|
d = m7 | (m7 >> 18); \
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
void
|
||
|
|
shadowUpdatePlanar4x8 (ScreenPtr pScreen,
|
||
|
|
shadowBufPtr pBuf)
|
||
|
|
{
|
||
|
|
RegionPtr damage = shadowDamage (pBuf);
|
||
|
|
PixmapPtr pShadow = pBuf->pPixmap;
|
||
|
|
int nbox = REGION_NUM_RECTS (damage);
|
||
|
|
BoxPtr pbox = REGION_RECTS (damage);
|
||
|
|
CARD32 *shaBase, *shaLine, *sha;
|
||
|
|
CARD8 s1, s2, s3, s4;
|
||
|
|
FbStride shaStride;
|
||
|
|
int scrBase, scrLine, scr;
|
||
|
|
int shaBpp;
|
||
|
|
int shaXoff, shaYoff; /* XXX assumed to be zero */
|
||
|
|
int x, y, w, h, width;
|
||
|
|
int i;
|
||
|
|
CARD32 *winBase = NULL, *win;
|
||
|
|
CARD32 winSize;
|
||
|
|
int plane;
|
||
|
|
|
||
|
|
fbGetStipDrawable (&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;
|
||
|
|
|
||
|
|
w = (w + (x & PL_MASK) + PL_MASK) >> PL_SHIFT;
|
||
|
|
x &= ~PL_MASK;
|
||
|
|
|
||
|
|
scrLine = (x >> PL_SHIFT);
|
||
|
|
shaLine = shaBase + y * shaStride + (x >> FB_SHIFT);
|
||
|
|
|
||
|
|
while (h--)
|
||
|
|
{
|
||
|
|
for (plane = 0; plane < 4; plane++)
|
||
|
|
{
|
||
|
|
width = w;
|
||
|
|
scr = scrLine;
|
||
|
|
sha = shaLine;
|
||
|
|
winSize = 0;
|
||
|
|
scrBase = 0;
|
||
|
|
while (width) {
|
||
|
|
/* how much remains in this window */
|
||
|
|
i = scrBase + winSize - scr;
|
||
|
|
if (i <= 0 || scr < scrBase)
|
||
|
|
{
|
||
|
|
winBase = (CARD32 *) (*pBuf->window) (pScreen,
|
||
|
|
y,
|
||
|
|
(scr << 4) | (plane),
|
||
|
|
SHADOW_WINDOW_WRITE,
|
||
|
|
&winSize,
|
||
|
|
pBuf->closure);
|
||
|
|
if(!winBase)
|
||
|
|
return;
|
||
|
|
winSize >>= 2;
|
||
|
|
scrBase = scr;
|
||
|
|
i = winSize;
|
||
|
|
}
|
||
|
|
win = winBase + (scr - scrBase);
|
||
|
|
if (i > width)
|
||
|
|
i = width;
|
||
|
|
width -= i;
|
||
|
|
scr += i;
|
||
|
|
|
||
|
|
while (i--)
|
||
|
|
{
|
||
|
|
GetBits(plane,0,s1);
|
||
|
|
GetBits(plane,2,s2);
|
||
|
|
GetBits(plane,4,s3);
|
||
|
|
GetBits(plane,6,s4);
|
||
|
|
*win++ = s1 | (s2 << 8) | (s3 << 16) | (s4 << 24);
|
||
|
|
sha += 8;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
shaLine += shaStride;
|
||
|
|
y++;
|
||
|
|
}
|
||
|
|
pbox++;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|