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xserver-multidpi/fb/fbpict.c
Soren Sandmann Pedersen 2d9a7a7687 From pixman (Jeff Muizelaar) 
Fix up the fast-path compositing operators; those are useful for
    sources without alpha, but can't be used for sources with
    alpha. Also, replaced fbCompositeSrcSrc_nxn with call to fbBlt as
    this function must handle 1, 4, 8, 16, 24, 32 bpp objects. Would
    be nice to optimize fbBlt for common cases involving 8, 16, 24 and
    32bpp.

    From Keith Packard.
2007-04-24 14:46:59 -04:00

2184 lines
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/*
*
* Copyright © 2000 SuSE, Inc.
*
* 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 SuSE not be used in advertising or
* publicity pertaining to distribution of the software without specific,
* written prior permission. SuSE makes no representations about the
* suitability of this software for any purpose. It is provided "as is"
* without express or implied warranty.
*
* SuSE DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL SuSE
* 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.
*
* Author: Keith Packard, SuSE, Inc.
*/
#ifdef HAVE_DIX_CONFIG_H
#include <dix-config.h>
#endif
#include <string.h>
#include "fb.h"
#ifdef RENDER
#include "picturestr.h"
#include "mipict.h"
#include "fbpict.h"
#include "fbmmx.h"
typedef void (*CompositeFunc) (CARD8 op,
PicturePtr pSrc,
PicturePtr pMask,
PicturePtr pDst,
INT16 xSrc,
INT16 ySrc,
INT16 xMask,
INT16 yMask,
INT16 xDst,
INT16 yDst,
CARD16 width,
CARD16 height);
CARD32
fbOver (CARD32 x, CARD32 y)
{
CARD16 a = ~x >> 24;
CARD16 t;
CARD32 m,n,o,p;
m = FbOverU(x,y,0,a,t);
n = FbOverU(x,y,8,a,t);
o = FbOverU(x,y,16,a,t);
p = FbOverU(x,y,24,a,t);
return m|n|o|p;
}
CARD32
fbOver24 (CARD32 x, CARD32 y)
{
CARD16 a = ~x >> 24;
CARD16 t;
CARD32 m,n,o;
m = FbOverU(x,y,0,a,t);
n = FbOverU(x,y,8,a,t);
o = FbOverU(x,y,16,a,t);
return m|n|o;
}
CARD32
fbIn (CARD32 x, CARD8 y)
{
CARD16 a = y;
CARD16 t;
CARD32 m,n,o,p;
m = FbInU(x,0,a,t);
n = FbInU(x,8,a,t);
o = FbInU(x,16,a,t);
p = FbInU(x,24,a,t);
return m|n|o|p;
}
#define genericCombine24(a,b,c,d) (((a)*(c)+(b)*(d)))
/*
* This macro does src IN mask OVER dst when src and dst are 0888.
* If src has alpha, this will not work
*/
#define inOver0888(alpha, source, destval, dest) { \
CARD32 dstrb=destval&0xFF00FF; CARD32 dstag=(destval>>8)&0xFF00FF; \
CARD32 drb=((source&0xFF00FF)-dstrb)*alpha; CARD32 dag=(((source>>8)&0xFF00FF)-dstag)*alpha; \
dest =((((drb>>8) + dstrb) & 0x00FF00FF) | ((((dag>>8) + dstag) << 8) & 0xFF00FF00)); \
}
/*
* This macro does src IN mask OVER dst when src and dst are 0565 and
* mask is a 5-bit alpha value. Again, if src has alpha, this will not
* work.
*/
#define inOver0565(alpha, source, destval, dest) { \
CARD16 dstrb = destval & 0xf81f; CARD16 dstg = destval & 0x7e0; \
CARD32 drb = ((source&0xf81f)-dstrb)*alpha; CARD32 dg=((source & 0x7e0)-dstg)*alpha; \
dest = ((((drb>>5) + dstrb)&0xf81f) | (((dg>>5) + dstg) & 0x7e0)); \
}
#define inOver2x0565(alpha, source, destval, dest) { \
CARD32 dstrb = destval & 0x07e0f81f; CARD32 dstg = (destval & 0xf81f07e0)>>5; \
CARD32 drb = ((source&0x07e0f81f)-dstrb)*alpha; CARD32 dg=(((source & 0xf81f07e0)>>5)-dstg)*alpha; \
dest = ((((drb>>5) + dstrb)&0x07e0f81f) | ((((dg>>5) + dstg)<<5) & 0xf81f07e0)); \
}
#if IMAGE_BYTE_ORDER == LSBFirst
#define setupPackedReader(count,temp,where,workingWhere,workingVal) count=(int)where; \
temp=count&3; \
where-=temp; \
workingWhere=(CARD32 *)where; \
workingVal=*workingWhere++; \
count=4-temp; \
workingVal>>=(8*temp)
#define readPacked(where,x,y,z) {if(!(x)) { (x)=4; y=*z++; } where=(y)&0xff; (y)>>=8; (x)--;}
#define readPackedSource(where) readPacked(where,ws,workingSource,wsrc)
#define readPackedDest(where) readPacked(where,wd,workingiDest,widst)
#define writePacked(what) workingoDest>>=8; workingoDest|=(what<<24); ww--; if(!ww) { ww=4; *wodst++=workingoDest; }
#else
#warning "I havn't tested fbCompositeTrans_0888xnx0888() on big endian yet!"
#define setupPackedReader(count,temp,where,workingWhere,workingVal) count=(int)where; \
temp=count&3; \
where-=temp; \
workingWhere=(CARD32 *)where; \
workingVal=*workingWhere++; \
count=4-temp; \
workingVal<<=(8*temp)
#define readPacked(where,x,y,z) {if(!(x)) { (x)=4; y=*z++; } where=(y)>>24; (y)<<=8; (x)--;}
#define readPackedSource(where) readPacked(where,ws,workingSource,wsrc)
#define readPackedDest(where) readPacked(where,wd,workingiDest,widst)
#define writePacked(what) workingoDest<<=8; workingoDest|=what; ww--; if(!ww) { ww=4; *wodst++=workingoDest; }
#endif
/*
* Naming convention:
*
* opSRCxMASKxDST
*/
void
fbCompositeSolidMask_nx8x8888 (CARD8 op,
PicturePtr pSrc,
PicturePtr pMask,
PicturePtr pDst,
INT16 xSrc,
INT16 ySrc,
INT16 xMask,
INT16 yMask,
INT16 xDst,
INT16 yDst,
CARD16 width,
CARD16 height)
{
CARD32 src, srca;
CARD32 *dstLine, *dst, d, dstMask;
CARD8 *maskLine, *mask, m;
FbStride dstStride, maskStride;
CARD16 w;
fbComposeGetSolid(pSrc, src, pDst->format);
dstMask = FbFullMask (pDst->pDrawable->depth);
srca = src >> 24;
if (src == 0)
return;
fbComposeGetStart (pDst, xDst, yDst, CARD32, dstStride, dstLine, 1);
fbComposeGetStart (pMask, xMask, yMask, CARD8, maskStride, maskLine, 1);
while (height--)
{
dst = dstLine;
dstLine += dstStride;
mask = maskLine;
maskLine += maskStride;
w = width;
while (w--)
{
m = READ(mask++);
if (m == 0xff)
{
if (srca == 0xff)
WRITE(dst, src & dstMask);
else
WRITE(dst, fbOver (src, READ(dst)) & dstMask);
}
else if (m)
{
d = fbIn (src, m);
WRITE(dst, fbOver (d, READ(dst)) & dstMask);
}
dst++;
}
}
fbFinishAccess (pMask->pDrawable);
fbFinishAccess (pDst->pDrawable);
}
void
fbCompositeSolidMask_nx8888x8888C (CARD8 op,
PicturePtr pSrc,
PicturePtr pMask,
PicturePtr pDst,
INT16 xSrc,
INT16 ySrc,
INT16 xMask,
INT16 yMask,
INT16 xDst,
INT16 yDst,
CARD16 width,
CARD16 height)
{
CARD32 src, srca;
CARD32 *dstLine, *dst, d, dstMask;
CARD32 *maskLine, *mask, ma;
FbStride dstStride, maskStride;
CARD16 w;
CARD32 m, n, o, p;
fbComposeGetSolid(pSrc, src, pDst->format);
dstMask = FbFullMask (pDst->pDrawable->depth);
srca = src >> 24;
if (src == 0)
return;
fbComposeGetStart (pDst, xDst, yDst, CARD32, dstStride, dstLine, 1);
fbComposeGetStart (pMask, xMask, yMask, CARD32, maskStride, maskLine, 1);
while (height--)
{
dst = dstLine;
dstLine += dstStride;
mask = maskLine;
maskLine += maskStride;
w = width;
while (w--)
{
ma = READ(mask++);
if (ma == 0xffffffff)
{
if (srca == 0xff)
WRITE(dst, src & dstMask);
else
WRITE(dst, fbOver (src, READ(dst)) & dstMask);
}
else if (ma)
{
d = READ(dst);
#define FbInOverC(src,srca,msk,dst,i,result) { \
CARD16 __a = FbGet8(msk,i); \
CARD32 __t, __ta; \
CARD32 __i; \
__t = FbIntMult (FbGet8(src,i), __a,__i); \
__ta = (CARD8) ~FbIntMult (srca, __a,__i); \
__t = __t + FbIntMult(FbGet8(dst,i),__ta,__i); \
__t = (CARD32) (CARD8) (__t | (-(__t >> 8))); \
result = __t << (i); \
}
FbInOverC (src, srca, ma, d, 0, m);
FbInOverC (src, srca, ma, d, 8, n);
FbInOverC (src, srca, ma, d, 16, o);
FbInOverC (src, srca, ma, d, 24, p);
WRITE(dst, m|n|o|p);
}
dst++;
}
}
fbFinishAccess (pMask->pDrawable);
fbFinishAccess (pDst->pDrawable);
}
#define srcAlphaCombine24(a,b) genericCombine24(a,b,srca,srcia)
void
fbCompositeSolidMask_nx8x0888 (CARD8 op,
PicturePtr pSrc,
PicturePtr pMask,
PicturePtr pDst,
INT16 xSrc,
INT16 ySrc,
INT16 xMask,
INT16 yMask,
INT16 xDst,
INT16 yDst,
CARD16 width,
CARD16 height)
{
CARD32 src, srca, srcia;
CARD8 *dstLine, *dst, *edst;
CARD8 *maskLine, *mask, m;
FbStride dstStride, maskStride;
CARD16 w;
CARD32 rs,gs,bs,rd,gd,bd;
fbComposeGetSolid(pSrc, src, pDst->format);
srca = src >> 24;
srcia = 255-srca;
if (src == 0)
return;
rs=src&0xff;
gs=(src>>8)&0xff;
bs=(src>>16)&0xff;
fbComposeGetStart (pDst, xDst, yDst, CARD8, dstStride, dstLine, 3);
fbComposeGetStart (pMask, xMask, yMask, CARD8, maskStride, maskLine, 1);
while (height--)
{
/* fixme: cleanup unused */
unsigned int wt,wd;
CARD32 workingiDest;
CARD32 *widst;
edst=dst = dstLine;
dstLine += dstStride;
mask = maskLine;
maskLine += maskStride;
w = width;
#ifndef NO_MASKED_PACKED_READ
setupPackedReader(wd,wt,edst,widst,workingiDest);
#endif
while (w--)
{
#ifndef NO_MASKED_PACKED_READ
readPackedDest(rd);
readPackedDest(gd);
readPackedDest(bd);
#else
rd= *edst++;
gd= *edst++;
bd= *edst++;
#endif
m = *mask++;
if (m == 0xff)
{
if (srca == 0xff)
{
*dst++=rs;
*dst++=gs;
*dst++=bs;
}
else
{
*dst++=(srcAlphaCombine24(rs, rd)>>8);
*dst++=(srcAlphaCombine24(gs, gd)>>8);
*dst++=(srcAlphaCombine24(bs, bd)>>8);
}
}
else if (m)
{
int na=(srca*(int)m)>>8;
int nia=255-na;
*dst++=(genericCombine24(rs, rd, na, nia)>>8);
*dst++=(genericCombine24(gs, gd, na, nia)>>8);
*dst++=(genericCombine24(bs, bd, na, nia)>>8);
}
else
{
dst+=3;
}
}
}
fbFinishAccess (pMask->pDrawable);
fbFinishAccess (pDst->pDrawable);
}
void
fbCompositeSolidMask_nx8x0565 (CARD8 op,
PicturePtr pSrc,
PicturePtr pMask,
PicturePtr pDst,
INT16 xSrc,
INT16 ySrc,
INT16 xMask,
INT16 yMask,
INT16 xDst,
INT16 yDst,
CARD16 width,
CARD16 height)
{
CARD32 src, srca8, srca5;
CARD16 *dstLine, *dst;
CARD16 d;
CARD32 t;
CARD8 *maskLine, *mask, m;
FbStride dstStride, maskStride;
CARD16 w,src16;
fbComposeGetSolid(pSrc, src, pDst->format);
if (src == 0)
return;
srca8 = (src >> 24);
srca5 = (srca8 >> 3);
src16 = cvt8888to0565(src);
fbComposeGetStart (pDst, xDst, yDst, CARD16, dstStride, dstLine, 1);
fbComposeGetStart (pMask, xMask, yMask, CARD8, maskStride, maskLine, 1);
while (height--)
{
dst = dstLine;
dstLine += dstStride;
mask = maskLine;
maskLine += maskStride;
w = width;
while (w--)
{
m = *mask++;
if (m == 0)
dst++;
else if (srca5 == (0xff >> 3))
{
if (m == 0xff)
*dst++ = src16;
else
{
d = *dst;
m >>= 3;
inOver0565 (m, src16, d, *dst++);
}
}
else
{
d = *dst;
if (m == 0xff)
{
t = fbOver24 (src, cvt0565to0888 (d));
}
else
{
t = fbIn (src, m);
t = fbOver (t, cvt0565to0888 (d));
}
*dst++ = cvt8888to0565 (t);
}
}
}
fbFinishAccess (pMask->pDrawable);
fbFinishAccess (pDst->pDrawable);
}
static void
fbCompositeSolidMask_nx8888x0565 (CARD8 op,
PicturePtr pSrc,
PicturePtr pMask,
PicturePtr pDst,
INT16 xSrc,
INT16 ySrc,
INT16 xMask,
INT16 yMask,
INT16 xDst,
INT16 yDst,
CARD16 width,
CARD16 height)
{
CARD32 src, srca8, srca5;
CARD16 *dstLine, *dst;
CARD16 d;
CARD32 *maskLine, *mask;
CARD32 t;
CARD8 m;
FbStride dstStride, maskStride;
CARD16 w, src16;
fbComposeGetSolid(pSrc, src, pDst->format);
if (src == 0)
return;
srca8 = src >> 24;
srca5 = srca8 >> 3;
src16 = cvt8888to0565(src);
fbComposeGetStart (pDst, xDst, yDst, CARD16, dstStride, dstLine, 1);
fbComposeGetStart (pMask, xMask, yMask, CARD32, maskStride, maskLine, 1);
while (height--)
{
dst = dstLine;
dstLine += dstStride;
mask = maskLine;
maskLine += maskStride;
w = width;
while (w--)
{
m = *mask++ >> 24;
if (m == 0)
dst++;
else if (srca5 == (0xff >> 3))
{
if (m == 0xff)
*dst++ = src16;
else
{
d = *dst;
m >>= 3;
inOver0565 (m, src16, d, *dst++);
}
}
else
{
if (m == 0xff)
{
d = *dst;
t = fbOver24 (src, cvt0565to0888 (d));
*dst++ = cvt8888to0565 (t);
}
else
{
d = *dst;
t = fbIn (src, m);
t = fbOver (t, cvt0565to0888 (d));
*dst++ = cvt8888to0565 (t);
}
}
}
}
}
void
fbCompositeSolidMask_nx8888x0565C (CARD8 op,
PicturePtr pSrc,
PicturePtr pMask,
PicturePtr pDst,
INT16 xSrc,
INT16 ySrc,
INT16 xMask,
INT16 yMask,
INT16 xDst,
INT16 yDst,
CARD16 width,
CARD16 height)
{
CARD32 src, srca;
CARD16 src16;
CARD16 *dstLine, *dst;
CARD32 d;
CARD32 *maskLine, *mask, ma;
FbStride dstStride, maskStride;
CARD16 w;
CARD32 m, n, o;
fbComposeGetSolid(pSrc, src, pDst->format);
srca = src >> 24;
if (src == 0)
return;
src16 = cvt8888to0565(src);
fbComposeGetStart (pDst, xDst, yDst, CARD16, dstStride, dstLine, 1);
fbComposeGetStart (pMask, xMask, yMask, CARD32, maskStride, maskLine, 1);
while (height--)
{
dst = dstLine;
dstLine += dstStride;
mask = maskLine;
maskLine += maskStride;
w = width;
while (w--)
{
ma = READ(mask++);
if (ma == 0xffffffff)
{
if (srca == 0xff)
{
WRITE(dst, src16);
}
else
{
d = READ(dst);
d = fbOver24 (src, cvt0565to0888(d));
WRITE(dst, cvt8888to0565(d));
}
}
else if (ma)
{
d = READ(dst);
d = cvt0565to0888(d);
FbInOverC (src, srca, ma, d, 0, m);
FbInOverC (src, srca, ma, d, 8, n);
FbInOverC (src, srca, ma, d, 16, o);
d = m|n|o;
WRITE(dst, cvt8888to0565(d));
}
dst++;
}
}
fbFinishAccess (pMask->pDrawable);
fbFinishAccess (pDst->pDrawable);
}
void
fbCompositeSrc_8888x8888 (CARD8 op,
PicturePtr pSrc,
PicturePtr pMask,
PicturePtr pDst,
INT16 xSrc,
INT16 ySrc,
INT16 xMask,
INT16 yMask,
INT16 xDst,
INT16 yDst,
CARD16 width,
CARD16 height)
{
CARD32 *dstLine, *dst, dstMask;
CARD32 *srcLine, *src, s;
FbStride dstStride, srcStride;
CARD8 a;
CARD16 w;
fbComposeGetStart (pDst, xDst, yDst, CARD32, dstStride, dstLine, 1);
fbComposeGetStart (pSrc, xSrc, ySrc, CARD32, srcStride, srcLine, 1);
dstMask = FbFullMask (pDst->pDrawable->depth);
while (height--)
{
dst = dstLine;
dstLine += dstStride;
src = srcLine;
srcLine += srcStride;
w = width;
while (w--)
{
s = READ(src++);
a = s >> 24;
if (a == 0xff)
WRITE(dst, s & dstMask);
else if (a)
WRITE(dst, fbOver (s, READ(dst)) & dstMask);
dst++;
}
}
fbFinishAccess (pSrc->pDrawable);
fbFinishAccess (pDst->pDrawable);
}
void
fbCompositeSrc_8888x0888 (CARD8 op,
PicturePtr pSrc,
PicturePtr pMask,
PicturePtr pDst,
INT16 xSrc,
INT16 ySrc,
INT16 xMask,
INT16 yMask,
INT16 xDst,
INT16 yDst,
CARD16 width,
CARD16 height)
{
CARD8 *dstLine, *dst;
CARD32 d;
CARD32 *srcLine, *src, s;
CARD8 a;
FbStride dstStride, srcStride;
CARD16 w;
fbComposeGetStart (pDst, xDst, yDst, CARD8, dstStride, dstLine, 3);
fbComposeGetStart (pSrc, xSrc, ySrc, CARD32, srcStride, srcLine, 1);
while (height--)
{
dst = dstLine;
dstLine += dstStride;
src = srcLine;
srcLine += srcStride;
w = width;
while (w--)
{
s = READ(src++);
a = s >> 24;
if (a)
{
if (a == 0xff)
d = s;
else
d = fbOver24 (s, Fetch24(dst));
Store24(dst,d);
}
dst += 3;
}
}
fbFinishAccess (pSrc->pDrawable);
fbFinishAccess (pDst->pDrawable);
}
void
fbCompositeSrc_8888x0565 (CARD8 op,
PicturePtr pSrc,
PicturePtr pMask,
PicturePtr pDst,
INT16 xSrc,
INT16 ySrc,
INT16 xMask,
INT16 yMask,
INT16 xDst,
INT16 yDst,
CARD16 width,
CARD16 height)
{
CARD16 *dstLine, *dst;
CARD32 d;
CARD32 *srcLine, *src, s;
CARD8 a;
FbStride dstStride, srcStride;
CARD16 w;
fbComposeGetStart (pSrc, xSrc, ySrc, CARD32, srcStride, srcLine, 1);
fbComposeGetStart (pDst, xDst, yDst, CARD16, dstStride, dstLine, 1);
while (height--)
{
dst = dstLine;
dstLine += dstStride;
src = srcLine;
srcLine += srcStride;
w = width;
while (w--)
{
s = READ(src++);
a = s >> 24;
if (a)
{
if (a == 0xff)
d = s;
else
{
d = READ(dst);
d = fbOver24 (s, cvt0565to0888(d));
}
WRITE(dst, cvt8888to0565(d));
}
dst++;
}
}
fbFinishAccess (pDst->pDrawable);
fbFinishAccess (pSrc->pDrawable);
}
#if 0
void
fbCompositeSrc_0565x0565 (CARD8 op,
PicturePtr pSrc,
PicturePtr pMask,
PicturePtr pDst,
INT16 xSrc,
INT16 ySrc,
INT16 xMask,
INT16 yMask,
INT16 xDst,
INT16 yDst,
CARD16 width,
CARD16 height)
{
CARD16 *dstLine, *dst;
CARD16 *srcLine, *src;
FbStride dstStride, srcStride;
CARD16 w;
fbComposeGetStart (pSrc, xSrc, ySrc, CARD16, srcStride, srcLine, 1);
fbComposeGetStart (pDst, xDst, yDst, CARD16, dstStride, dstLine, 1);
while (height--)
{
dst = dstLine;
dstLine += dstStride;
src = srcLine;
srcLine += srcStride;
w = width;
while (w--)
WRITE(dst, READ(src++));
}
fbFinishAccess (pDst->pDrawable);
fbFinishAccess (pSrc->pDrawable);
}
#endif
void
fbCompositeSrcAdd_8000x8000 (CARD8 op,
PicturePtr pSrc,
PicturePtr pMask,
PicturePtr pDst,
INT16 xSrc,
INT16 ySrc,
INT16 xMask,
INT16 yMask,
INT16 xDst,
INT16 yDst,
CARD16 width,
CARD16 height)
{
CARD8 *dstLine, *dst;
CARD8 *srcLine, *src;
FbStride dstStride, srcStride;
CARD16 w;
CARD8 s, d;
CARD16 t;
fbComposeGetStart (pSrc, xSrc, ySrc, CARD8, srcStride, srcLine, 1);
fbComposeGetStart (pDst, xDst, yDst, CARD8, dstStride, dstLine, 1);
while (height--)
{
dst = dstLine;
dstLine += dstStride;
src = srcLine;
srcLine += srcStride;
w = width;
while (w--)
{
s = READ(src++);
if (s)
{
if (s != 0xff)
{
d = READ(dst);
t = d + s;
s = t | (0 - (t >> 8));
}
WRITE(dst, s);
}
dst++;
}
}
fbFinishAccess (pDst->pDrawable);
fbFinishAccess (pSrc->pDrawable);
}
void
fbCompositeSrcAdd_8888x8888 (CARD8 op,
PicturePtr pSrc,
PicturePtr pMask,
PicturePtr pDst,
INT16 xSrc,
INT16 ySrc,
INT16 xMask,
INT16 yMask,
INT16 xDst,
INT16 yDst,
CARD16 width,
CARD16 height)
{
CARD32 *dstLine, *dst;
CARD32 *srcLine, *src;
FbStride dstStride, srcStride;
CARD16 w;
CARD32 s, d;
CARD16 t;
CARD32 m,n,o,p;
fbComposeGetStart (pSrc, xSrc, ySrc, CARD32, srcStride, srcLine, 1);
fbComposeGetStart (pDst, xDst, yDst, CARD32, dstStride, dstLine, 1);
while (height--)
{
dst = dstLine;
dstLine += dstStride;
src = srcLine;
srcLine += srcStride;
w = width;
while (w--)
{
s = READ(src++);
if (s)
{
if (s != 0xffffffff)
{
d = READ(dst);
if (d)
{
m = FbAdd(s,d,0,t);
n = FbAdd(s,d,8,t);
o = FbAdd(s,d,16,t);
p = FbAdd(s,d,24,t);
s = m|n|o|p;
}
}
WRITE(dst, s);
}
dst++;
}
}
fbFinishAccess (pDst->pDrawable);
fbFinishAccess (pSrc->pDrawable);
}
void
fbCompositeSrcAdd_1000x1000 (CARD8 op,
PicturePtr pSrc,
PicturePtr pMask,
PicturePtr pDst,
INT16 xSrc,
INT16 ySrc,
INT16 xMask,
INT16 yMask,
INT16 xDst,
INT16 yDst,
CARD16 width,
CARD16 height)
{
FbBits *dstBits, *srcBits;
FbStride dstStride, srcStride;
int dstBpp, srcBpp;
int dstXoff, dstYoff;
int srcXoff, srcYoff;
fbGetDrawable(pSrc->pDrawable, srcBits, srcStride, srcBpp, srcXoff, srcYoff);
fbGetDrawable(pDst->pDrawable, dstBits, dstStride, dstBpp, dstXoff, dstYoff);
fbBlt (srcBits + srcStride * (ySrc + srcYoff),
srcStride,
xSrc + srcXoff,
dstBits + dstStride * (yDst + dstYoff),
dstStride,
xDst + dstXoff,
width,
height,
GXor,
FB_ALLONES,
srcBpp,
FALSE,
FALSE);
fbFinishAccess(pDst->pDrawable);
fbFinishAccess(pSrc->pDrawable);
}
void
fbCompositeSolidMask_nx1xn (CARD8 op,
PicturePtr pSrc,
PicturePtr pMask,
PicturePtr pDst,
INT16 xSrc,
INT16 ySrc,
INT16 xMask,
INT16 yMask,
INT16 xDst,
INT16 yDst,
CARD16 width,
CARD16 height)
{
FbBits *dstBits;
FbStip *maskBits;
FbStride dstStride, maskStride;
int dstBpp, maskBpp;
int dstXoff, dstYoff;
int maskXoff, maskYoff;
FbBits src;
fbComposeGetSolid(pSrc, src, pDst->format);
if ((src & 0xff000000) != 0xff000000)
{
fbCompositeGeneral (op, pSrc, pMask, pDst,
xSrc, ySrc, xMask, yMask, xDst, yDst,
width, height);
return;
}
fbGetStipDrawable (pMask->pDrawable, maskBits, maskStride, maskBpp, maskXoff, maskYoff);
fbGetDrawable (pDst->pDrawable, dstBits, dstStride, dstBpp, dstXoff, dstYoff);
switch (dstBpp) {
case 32:
break;
case 24:
break;
case 16:
src = cvt8888to0565(src);
break;
}
src = fbReplicatePixel (src, dstBpp);
fbBltOne (maskBits + maskStride * (yMask + maskYoff),
maskStride,
xMask + maskXoff,
dstBits + dstStride * (yDst + dstYoff),
dstStride,
(xDst + dstXoff) * dstBpp,
dstBpp,
width * dstBpp,
height,
0x0,
src,
FB_ALLONES,
0x0);
fbFinishAccess (pDst->pDrawable);
fbFinishAccess (pMask->pDrawable);
}
# define mod(a,b) ((b) == 1 ? 0 : (a) >= 0 ? (a) % (b) : (b) - (-a) % (b))
/*
* Apply a constant alpha value in an over computation
*/
static void
fbCompositeSrcSrc_nxn (CARD8 op,
PicturePtr pSrc,
PicturePtr pMask,
PicturePtr pDst,
INT16 xSrc,
INT16 ySrc,
INT16 xMask,
INT16 yMask,
INT16 xDst,
INT16 yDst,
CARD16 width,
CARD16 height);
static void
fbCompositeTrans_0565xnx0565(CARD8 op,
PicturePtr pSrc,
PicturePtr pMask,
PicturePtr pDst,
INT16 xSrc,
INT16 ySrc,
INT16 xMask,
INT16 yMask,
INT16 xDst,
INT16 yDst,
CARD16 width,
CARD16 height)
{
CARD16 *dstLine, *dst;
CARD16 *srcLine, *src;
FbStride dstStride, srcStride;
CARD16 w;
FbBits mask;
CARD8 maskAlpha;
CARD16 s_16, d_16;
CARD32 s_32, d_32;
fbComposeGetSolid (pMask, mask, pDst->format);
maskAlpha = mask >> 27;
if (!maskAlpha)
return;
if (maskAlpha == 0xff)
{
fbCompositeSrcSrc_nxn (PictOpSrc, pSrc, pMask, pDst,
xSrc, ySrc, xMask, yMask, xDst, yDst,
width, height);
return;
}
fbComposeGetStart (pSrc, xSrc, ySrc, CARD16, srcStride, srcLine, 1);
fbComposeGetStart (pDst, xDst, yDst, CARD16, dstStride, dstLine, 1);
while (height--)
{
CARD32 *isrc, *idst;
dst = dstLine;
dstLine += dstStride;
src = srcLine;
srcLine += srcStride;
w = width;
if(((int)src&1)==1)
{
s_16 = *src++;
d_16 = *dst;
inOver0565(maskAlpha, s_16, d_16, *dst++);
w--;
}
isrc=(CARD32 *)src;
if(((int)dst&1)==0)
{
idst=(CARD32 *)dst;
while (w>1)
{
s_32 = *isrc++;
d_32 = *idst;
inOver2x0565(maskAlpha, s_32, d_32, *idst++);
w-=2;
}
dst=(CARD16 *)idst;
}
else
{
while (w > 1)
{
s_32 = *isrc++;
#if IMAGE_BYTE_ORDER == LSBFirst
s_16=s_32&0xffff;
#else
s_16=s_32>>16;
#endif
d_16 = *dst;
inOver0565 (maskAlpha, s_16, d_16, *dst++);
#if IMAGE_BYTE_ORDER == LSBFirst
s_16=s_32>>16;
#else
s_16=s_32&0xffff;
#endif
d_16 = *dst;
inOver0565(maskAlpha, s_16, d_16, *dst++);
w-=2;
}
}
src=(CARD16 *)isrc;
if(w!=0)
{
s_16 = *src;
d_16 = *dst;
inOver0565(maskAlpha, s_16, d_16, *dst);
}
}
fbFinishAccess (pSrc->pDrawable);
fbFinishAccess (pDst->pDrawable);
}
/* macros for "i can't believe it's not fast" packed pixel handling */
#define alphamaskCombine24(a,b) genericCombine24(a,b,maskAlpha,maskiAlpha)
static void
fbCompositeTrans_0888xnx0888(CARD8 op,
PicturePtr pSrc,
PicturePtr pMask,
PicturePtr pDst,
INT16 xSrc,
INT16 ySrc,
INT16 xMask,
INT16 yMask,
INT16 xDst,
INT16 yDst,
CARD16 width,
CARD16 height)
{
CARD8 *dstLine, *dst,*idst;
CARD8 *srcLine, *src;
FbStride dstStride, srcStride;
CARD16 w;
FbBits mask;
CARD16 maskAlpha,maskiAlpha;
fbComposeGetSolid (pMask, mask, pDst->format);
maskAlpha = mask >> 24;
maskiAlpha= 255-maskAlpha;
if (!maskAlpha)
return;
/*
if (maskAlpha == 0xff)
{
fbCompositeSrc_0888x0888 (op, pSrc, pMask, pDst,
xSrc, ySrc, xMask, yMask, xDst, yDst,
width, height);
return;
}
*/
fbComposeGetStart (pSrc, xSrc, ySrc, CARD8, srcStride, srcLine, 3);
fbComposeGetStart (pDst, xDst, yDst, CARD8, dstStride, dstLine, 3);
{
unsigned int ws,wt;
CARD32 workingSource;
CARD32 *wsrc, *wdst, *widst;
CARD32 rs, rd, nd;
CARD8 *isrc;
/* are xSrc and xDst at the same alignment? if not, we need to be complicated :) */
/* if(0==0) */
if( (((xSrc*3)&3)!=((xDst*3)&3)) || ((srcStride&3)!=(dstStride&3)))
{
while (height--)
{
dst = dstLine;
dstLine += dstStride;
isrc = src = srcLine;
srcLine += srcStride;
w = width*3;
setupPackedReader(ws,wt,isrc,wsrc,workingSource);
/* get to word aligned */
switch(!(int)src&3)
{
case 1:
readPackedSource(rs);
/* *dst++=alphamaskCombine24(rs, *dst)>>8; */
rd=*dst; /* make gcc happy. hope it doens't cost us too much performance*/
*dst++=alphamaskCombine24(rs, rd)>>8;
w--; if(w==0) break;
case 2:
readPackedSource(rs);
rd=*dst;
*dst++=alphamaskCombine24(rs, rd)>>8;
w--; if(w==0) break;
case 3:
readPackedSource(rs);
rd=*dst;
*dst++=alphamaskCombine24(rs, rd)>>8;
w--; if(w==0) break;
}
wdst=(CARD32 *)dst;
while (w>3)
{
rs=*wsrc++;
/* FIXME: write a special readPackedWord macro, which knows how to
* halfword combine
*/
#if IMAGE_BYTE_ORDER == LSBFirst
rd=*wdst;
readPackedSource(nd);
readPackedSource(rs);
nd|=rs<<8;
readPackedSource(rs);
nd|=rs<<16;
readPackedSource(rs);
nd|=rs<<24;
#else
readPackedSource(nd);
nd<<=24;
readPackedSource(rs);
nd|=rs<<16;
readPackedSource(rs);
nd|=rs<<8;
readPackedSource(rs);
nd|=rs;
#endif
inOver0888(maskAlpha, nd, rd, *wdst++);
w-=4;
}
src=(CARD8 *)wdst;
switch(w)
{
case 3:
readPackedSource(rs);
rd=*dst;
*dst++=alphamaskCombine24(rs, rd)>>8;
case 2:
readPackedSource(rs);
rd=*dst;
*dst++=alphamaskCombine24(rs, rd)>>8;
case 1:
readPackedSource(rs);
rd=*dst;
*dst++=alphamaskCombine24(rs, rd)>>8;
}
}
}
else
{
while (height--)
{
idst=dst = dstLine;
dstLine += dstStride;
src = srcLine;
srcLine += srcStride;
w = width*3;
/* get to word aligned */
switch(!(int)src&3)
{
case 1:
rd=alphamaskCombine24(*src++, *dst)>>8;
*dst++=rd;
w--; if(w==0) break;
case 2:
rd=alphamaskCombine24(*src++, *dst)>>8;
*dst++=rd;
w--; if(w==0) break;
case 3:
rd=alphamaskCombine24(*src++, *dst)>>8;
*dst++=rd;
w--; if(w==0) break;
}
wsrc=(CARD32 *)src;
widst=(CARD32 *)dst;
while(w>3)
{
rs = *wsrc++;
rd = *widst;
inOver0888 (maskAlpha, rs, rd, *widst++);
w-=4;
}
src=(CARD8 *)wsrc;
dst=(CARD8 *)widst;
switch(w)
{
case 3:
rd=alphamaskCombine24(*src++, *dst)>>8;
*dst++=rd;
case 2:
rd=alphamaskCombine24(*src++, *dst)>>8;
*dst++=rd;
case 1:
rd=alphamaskCombine24(*src++, *dst)>>8;
*dst++=rd;
}
}
}
}
}
/*
* Simple bitblt
*/
static void
fbCompositeSrcSrc_nxn (CARD8 op,
PicturePtr pSrc,
PicturePtr pMask,
PicturePtr pDst,
INT16 xSrc,
INT16 ySrc,
INT16 xMask,
INT16 yMask,
INT16 xDst,
INT16 yDst,
CARD16 width,
CARD16 height)
{
FbBits *dst;
FbBits *src;
FbStride dstStride, srcStride;
int srcXoff, srcYoff;
int dstXoff, dstYoff;
int srcBpp;
int dstBpp;
Bool reverse = FALSE;
Bool upsidedown = FALSE;
fbGetDrawable(pSrc->pDrawable,src,srcStride,srcBpp,srcXoff,srcYoff);
fbGetDrawable(pDst->pDrawable,dst,dstStride,dstBpp,dstXoff,dstYoff);
fbBlt (src + (ySrc + srcYoff) * srcStride,
srcStride,
(xSrc + srcXoff) * srcBpp,
dst + (yDst + dstYoff) * dstStride,
dstStride,
(xDst + dstXoff) * dstBpp,
(width) * dstBpp,
(height),
GXcopy,
FB_ALLONES,
dstBpp,
reverse,
upsidedown);
fbFinishAccess(pSrc->pDrawable);
fbFinishAccess(pDst->pDrawable);
}
/*
* Solid fill
void
fbCompositeSolidSrc_nxn (CARD8 op,
PicturePtr pSrc,
PicturePtr pMask,
PicturePtr pDst,
INT16 xSrc,
INT16 ySrc,
INT16 xMask,
INT16 yMask,
INT16 xDst,
INT16 yDst,
CARD16 width,
CARD16 height)
{
}
*/
void
fbComposite (CARD8 op,
PicturePtr pSrc,
PicturePtr pMask,
PicturePtr pDst,
INT16 xSrc,
INT16 ySrc,
INT16 xMask,
INT16 yMask,
INT16 xDst,
INT16 yDst,
CARD16 width,
CARD16 height)
{
RegionRec region;
int n;
BoxPtr pbox;
CompositeFunc func = NULL;
Bool srcRepeat = pSrc->pDrawable && pSrc->repeat;
Bool maskRepeat = FALSE;
Bool srcAlphaMap = pSrc->alphaMap != 0;
Bool maskAlphaMap = FALSE;
Bool dstAlphaMap = pDst->alphaMap != 0;
int x_msk, y_msk, x_src, y_src, x_dst, y_dst;
int w, h, w_this, h_this;
#ifdef USE_MMX
static Bool mmx_setup = FALSE;
if (!mmx_setup) {
fbComposeSetupMMX();
mmx_setup = TRUE;
}
#endif
xDst += pDst->pDrawable->x;
yDst += pDst->pDrawable->y;
if (pSrc->pDrawable) {
xSrc += pSrc->pDrawable->x;
ySrc += pSrc->pDrawable->y;
}
if (pMask && pMask->pDrawable)
{
xMask += pMask->pDrawable->x;
yMask += pMask->pDrawable->y;
maskRepeat = pMask->repeat == RepeatNormal;
maskAlphaMap = pMask->alphaMap != 0;
}
if (pSrc->pDrawable && (!pMask || pMask->pDrawable)
&& !pSrc->transform && !(pMask && pMask->transform)
&& !maskAlphaMap && !srcAlphaMap && !dstAlphaMap
&& (pSrc->filter != PictFilterConvolution)
&& (!pMask || pMask->filter != PictFilterConvolution))
switch (op) {
case PictOpSrc:
#ifdef USE_MMX
if (!pMask && pSrc->format == pDst->format &&
pSrc->format != PICT_a8 && pSrc->pDrawable != pDst->pDrawable)
{
func = fbCompositeCopyAreammx;
}
else
#endif
if (pMask == 0)
{
if (pSrc->format == pDst->format)
func = fbCompositeSrcSrc_nxn;
}
break;
case PictOpOver:
if (pMask)
{
if (fbCanGetSolid(pSrc) &&
!maskRepeat)
{
if (PICT_FORMAT_COLOR(pSrc->format)) {
switch (pMask->format) {
case PICT_a8:
switch (pDst->format) {
case PICT_r5g6b5:
case PICT_b5g6r5:
#ifdef USE_MMX
if (fbHaveMMX())
func = fbCompositeSolidMask_nx8x0565mmx;
else
#endif
func = fbCompositeSolidMask_nx8x0565;
break;
case PICT_r8g8b8:
case PICT_b8g8r8:
func = fbCompositeSolidMask_nx8x0888;
break;
case PICT_a8r8g8b8:
case PICT_x8r8g8b8:
case PICT_a8b8g8r8:
case PICT_x8b8g8r8:
#ifdef USE_MMX
if (fbHaveMMX())
func = fbCompositeSolidMask_nx8x8888mmx;
else
#endif
func = fbCompositeSolidMask_nx8x8888;
break;
default:
break;
}
break;
case PICT_a8r8g8b8:
if (pMask->componentAlpha) {
switch (pDst->format) {
case PICT_a8r8g8b8:
case PICT_x8r8g8b8:
#ifdef USE_MMX
if (fbHaveMMX())
func = fbCompositeSolidMask_nx8888x8888Cmmx;
else
#endif
func = fbCompositeSolidMask_nx8888x8888C;
break;
case PICT_r5g6b5:
#ifdef USE_MMX
if (fbHaveMMX())
func = fbCompositeSolidMask_nx8888x0565Cmmx;
else
#endif
func = fbCompositeSolidMask_nx8888x0565C;
break;
default:
break;
}
}
else
{
switch (pDst->format) {
case PICT_r5g6b5:
func = fbCompositeSolidMask_nx8888x0565;
break;
default:
break;
}
}
break;
case PICT_a8b8g8r8:
if (pMask->componentAlpha) {
switch (pDst->format) {
case PICT_a8b8g8r8:
case PICT_x8b8g8r8:
#ifdef USE_MMX
if (fbHaveMMX())
func = fbCompositeSolidMask_nx8888x8888Cmmx;
else
#endif
func = fbCompositeSolidMask_nx8888x8888C;
break;
case PICT_b5g6r5:
#ifdef USE_MMX
if (fbHaveMMX())
func = fbCompositeSolidMask_nx8888x0565Cmmx;
else
#endif
func = fbCompositeSolidMask_nx8888x0565C;
break;
default:
break;
}
}
else
{
switch (pDst->format) {
case PICT_b5g6r5:
func = fbCompositeSolidMask_nx8888x0565;
break;
default:
break;
}
}
break;
case PICT_a1:
switch (pDst->format) {
case PICT_r5g6b5:
case PICT_b5g6r5:
case PICT_r8g8b8:
case PICT_b8g8r8:
case PICT_a8r8g8b8:
case PICT_x8r8g8b8:
case PICT_a8b8g8r8:
case PICT_x8b8g8r8:
func = fbCompositeSolidMask_nx1xn;
break;
default:
break;
}
break;
default:
break;
}
default:
break;
}
}
else if (! srcRepeat) /* has mask and non-repeating source */
{
if (pSrc->pDrawable == pMask->pDrawable &&
xSrc == xMask && ySrc == yMask &&
!pMask->componentAlpha && !maskRepeat)
{
/* source == mask: non-premultiplied data */
switch (pSrc->format) {
case PICT_x8b8g8r8:
switch (pMask->format) {
case PICT_a8r8g8b8:
case PICT_a8b8g8r8:
switch (pDst->format) {
case PICT_a8r8g8b8:
case PICT_x8r8g8b8:
#ifdef USE_MMX
if (fbHaveMMX())
func = fbCompositeSrc_8888RevNPx8888mmx;
#endif
break;
case PICT_r5g6b5:
#ifdef USE_MMX
if (fbHaveMMX())
func = fbCompositeSrc_8888RevNPx0565mmx;
#endif
break;
default:
break;
}
break;
default:
break;
}
break;
case PICT_x8r8g8b8:
switch (pMask->format) {
case PICT_a8r8g8b8:
case PICT_a8b8g8r8:
switch (pDst->format) {
case PICT_a8b8g8r8:
case PICT_x8b8g8r8:
#ifdef USE_MMX
if (fbHaveMMX())
func = fbCompositeSrc_8888RevNPx8888mmx;
#endif
break;
case PICT_r5g6b5:
#ifdef USE_MMX
if (fbHaveMMX())
func = fbCompositeSrc_8888RevNPx0565mmx;
#endif
break;
default:
break;
}
break;
default:
break;
}
break;
default:
break;
}
break;
}
else
{
/* non-repeating source, repeating mask => translucent window */
if (fbCanGetSolid(pMask))
{
if (pSrc->format == PICT_x8r8g8b8 &&
pDst->format == PICT_x8r8g8b8 &&
pMask->format == PICT_a8)
{
#ifdef USE_MMX
if (fbHaveMMX())
func = fbCompositeSrc_8888x8x8888mmx;
#endif
}
}
}
if (func != fbCompositeGeneral)
srcRepeat = FALSE;
}
else if (maskRepeat &&
pMask->pDrawable->width == 1 &&
pMask->pDrawable->height == 1)
{
switch (pSrc->format) {
case PICT_r5g6b5:
case PICT_b5g6r5:
if (pDst->format == pSrc->format)
func = fbCompositeTrans_0565xnx0565;
break;
case PICT_r8g8b8:
case PICT_b8g8r8:
if (pDst->format == pSrc->format)
func = fbCompositeTrans_0888xnx0888;
break;
default:
break;
}
if (func != fbCompositeGeneral)
maskRepeat = FALSE;
}
}
else /* no mask */
{
if (fbCanGetSolid(pSrc))
{
/* no mask and repeating source */
switch (pSrc->format) {
case PICT_a8r8g8b8:
switch (pDst->format) {
case PICT_a8r8g8b8:
case PICT_x8r8g8b8:
#ifdef USE_MMX
if (fbHaveMMX())
{
srcRepeat = FALSE;
func = fbCompositeSolid_nx8888mmx;
}
#endif
break;
case PICT_r5g6b5:
#ifdef USE_MMX
if (fbHaveMMX())
{
srcRepeat = FALSE;
func = fbCompositeSolid_nx0565mmx;
}
#endif
break;
default:
break;
}
break;
default:
break;
}
}
else if (! srcRepeat)
{
/*
* Formats without alpha bits are just Copy with Over
*/
if (pSrc->format == pDst->format && !PICT_FORMAT_A(pSrc->format))
{
#ifdef USE_MMX
if (fbHaveMMX() &&
(pSrc->format == PICT_x8r8g8b8 || pSrc->format == PICT_x8b8g8r8))
func = fbCompositeCopyAreammx;
else
#endif
func = fbCompositeSrcSrc_nxn;
}
else switch (pSrc->format) {
case PICT_a8r8g8b8:
switch (pDst->format) {
case PICT_a8r8g8b8:
case PICT_x8r8g8b8:
#ifdef USE_MMX
if (fbHaveMMX())
func = fbCompositeSrc_8888x8888mmx;
else
#endif
func = fbCompositeSrc_8888x8888;
break;
case PICT_r8g8b8:
func = fbCompositeSrc_8888x0888;
break;
case PICT_r5g6b5:
#ifdef USE_MMX
if (fbHaveMMX())
func = fbCompositeSrc_8888x0565mmx;
else
#endif
func = fbCompositeSrc_8888x0565;
break;
default:
break;
}
break;
case PICT_x8r8g8b8:
switch (pDst->format) {
case PICT_a8r8g8b8:
case PICT_x8r8g8b8:
#ifdef USE_MMX
if (fbHaveMMX())
func = fbCompositeCopyAreammx;
#endif
break;
default:
break;
}
case PICT_x8b8g8r8:
switch (pDst->format) {
case PICT_a8b8g8r8:
case PICT_x8b8g8r8:
#ifdef USE_MMX
if (fbHaveMMX())
func = fbCompositeCopyAreammx;
#endif
break;
default:
break;
}
break;
case PICT_a8b8g8r8:
switch (pDst->format) {
case PICT_a8b8g8r8:
case PICT_x8b8g8r8:
#ifdef USE_MMX
if (fbHaveMMX())
func = fbCompositeSrc_8888x8888mmx;
else
#endif
func = fbCompositeSrc_8888x8888;
break;
case PICT_b8g8r8:
func = fbCompositeSrc_8888x0888;
break;
case PICT_b5g6r5:
#ifdef USE_MMX
if (fbHaveMMX())
func = fbCompositeSrc_8888x0565mmx;
else
#endif
func = fbCompositeSrc_8888x0565;
break;
default:
break;
}
break;
default:
break;
}
}
}
break;
case PictOpAdd:
if (pMask == 0)
{
switch (pSrc->format) {
case PICT_a8r8g8b8:
switch (pDst->format) {
case PICT_a8r8g8b8:
#ifdef USE_MMX
if (fbHaveMMX())
func = fbCompositeSrcAdd_8888x8888mmx;
else
#endif
func = fbCompositeSrcAdd_8888x8888;
break;
default:
break;
}
break;
case PICT_a8b8g8r8:
switch (pDst->format) {
case PICT_a8b8g8r8:
#ifdef USE_MMX
if (fbHaveMMX())
func = fbCompositeSrcAdd_8888x8888mmx;
else
#endif
func = fbCompositeSrcAdd_8888x8888;
break;
default:
break;
}
break;
case PICT_a8:
switch (pDst->format) {
case PICT_a8:
#ifdef USE_MMX
if (fbHaveMMX())
func = fbCompositeSrcAdd_8000x8000mmx;
else
#endif
func = fbCompositeSrcAdd_8000x8000;
break;
default:
break;
}
break;
case PICT_a1:
switch (pDst->format) {
case PICT_a1:
func = fbCompositeSrcAdd_1000x1000;
break;
default:
break;
}
break;
default:
break;
}
}
break;
}
if (!func) {
/* no fast path, use the general code */
fbCompositeGeneral(op, pSrc, pMask, pDst, xSrc, ySrc, xMask, yMask, xDst, yDst, width, height);
return;
}
if (!miComputeCompositeRegion (&region,
pSrc,
pMask,
pDst,
xSrc,
ySrc,
xMask,
yMask,
xDst,
yDst,
width,
height))
return;
n = REGION_NUM_RECTS (&region);
pbox = REGION_RECTS (&region);
while (n--)
{
h = pbox->y2 - pbox->y1;
y_src = pbox->y1 - yDst + ySrc;
y_msk = pbox->y1 - yDst + yMask;
y_dst = pbox->y1;
while (h)
{
h_this = h;
w = pbox->x2 - pbox->x1;
x_src = pbox->x1 - xDst + xSrc;
x_msk = pbox->x1 - xDst + xMask;
x_dst = pbox->x1;
if (maskRepeat)
{
y_msk = mod (y_msk - pMask->pDrawable->y, pMask->pDrawable->height);
if (h_this > pMask->pDrawable->height - y_msk)
h_this = pMask->pDrawable->height - y_msk;
y_msk += pMask->pDrawable->y;
}
if (srcRepeat)
{
y_src = mod (y_src - pSrc->pDrawable->y, pSrc->pDrawable->height);
if (h_this > pSrc->pDrawable->height - y_src)
h_this = pSrc->pDrawable->height - y_src;
y_src += pSrc->pDrawable->y;
}
while (w)
{
w_this = w;
if (maskRepeat)
{
x_msk = mod (x_msk - pMask->pDrawable->x, pMask->pDrawable->width);
if (w_this > pMask->pDrawable->width - x_msk)
w_this = pMask->pDrawable->width - x_msk;
x_msk += pMask->pDrawable->x;
}
if (srcRepeat)
{
x_src = mod (x_src - pSrc->pDrawable->x, pSrc->pDrawable->width);
if (w_this > pSrc->pDrawable->width - x_src)
w_this = pSrc->pDrawable->width - x_src;
x_src += pSrc->pDrawable->x;
}
(*func) (op, pSrc, pMask, pDst,
x_src, y_src, x_msk, y_msk, x_dst, y_dst,
w_this, h_this);
w -= w_this;
x_src += w_this;
x_msk += w_this;
x_dst += w_this;
}
h -= h_this;
y_src += h_this;
y_msk += h_this;
y_dst += h_this;
}
pbox++;
}
REGION_UNINIT (pDst->pDrawable->pScreen, &region);
}
#endif /* RENDER */
Bool
fbPictureInit (ScreenPtr pScreen, PictFormatPtr formats, int nformats)
{
#ifdef RENDER
PictureScreenPtr ps;
if (!miPictureInit (pScreen, formats, nformats))
return FALSE;
ps = GetPictureScreen(pScreen);
ps->Composite = fbComposite;
ps->Glyphs = miGlyphs;
ps->CompositeRects = miCompositeRects;
ps->RasterizeTrapezoid = fbRasterizeTrapezoid;
ps->AddTraps = fbAddTraps;
ps->AddTriangles = fbAddTriangles;
#endif /* RENDER */
return TRUE;
}
#ifdef USE_MMX
/* The CPU detection code needs to be in a file not compiled with
* "-mmmx -msse", as gcc would generate CMOV instructions otherwise
* that would lead to SIGILL instructions on old CPUs that don't have
* it.
*/
#if !defined(__amd64__) && !defined(__x86_64__)
#ifdef HAVE_GETISAX
#include <sys/auxv.h>
#endif
enum CPUFeatures {
NoFeatures = 0,
MMX = 0x1,
MMX_Extensions = 0x2,
SSE = 0x6,
SSE2 = 0x8,
CMOV = 0x10
};
static unsigned int detectCPUFeatures(void) {
unsigned int features = 0;
unsigned int result;
#ifdef HAVE_GETISAX
if (getisax(&result, 1)) {
if (result & AV_386_CMOV)
features |= CMOV;
if (result & AV_386_MMX)
features |= MMX;
if (result & AV_386_AMD_MMX)
features |= MMX_Extensions;
if (result & AV_386_SSE)
features |= SSE;
if (result & AV_386_SSE2)
features |= SSE2;
}
#else
char vendor[13];
vendor[0] = 0;
vendor[12] = 0;
/* see p. 118 of amd64 instruction set manual Vol3 */
/* We need to be careful about the handling of %ebx and
* %esp here. We can't declare either one as clobbered
* since they are special registers (%ebx is the "PIC
* register" holding an offset to global data, %esp the
* stack pointer), so we need to make sure they have their
* original values when we access the output operands.
*/
__asm__ ("pushf\n"
"pop %%eax\n"
"mov %%eax, %%ecx\n"
"xor $0x00200000, %%eax\n"
"push %%eax\n"
"popf\n"
"pushf\n"
"pop %%eax\n"
"mov $0x0, %%edx\n"
"xor %%ecx, %%eax\n"
"jz 1\n"
"mov $0x00000000, %%eax\n"
"push %%ebx\n"
"cpuid\n"
"mov %%ebx, %%eax\n"
"pop %%ebx\n"
"mov %%eax, %1\n"
"mov %%edx, %2\n"
"mov %%ecx, %3\n"
"mov $0x00000001, %%eax\n"
"push %%ebx\n"
"cpuid\n"
"pop %%ebx\n"
"1:\n"
"mov %%edx, %0\n"
: "=r" (result),
"=m" (vendor[0]),
"=m" (vendor[4]),
"=m" (vendor[8])
:
: "%eax", "%ecx", "%edx"
);
if (result) {
/* result now contains the standard feature bits */
if (result & (1 << 15))
features |= CMOV;
if (result & (1 << 23))
features |= MMX;
if (result & (1 << 25))
features |= SSE;
if (result & (1 << 26))
features |= SSE2;
if ((features & MMX) && !(features & SSE) &&
(strcmp(vendor, "AuthenticAMD") == 0 ||
strcmp(vendor, "Geode by NSC") == 0)) {
/* check for AMD MMX extensions */
unsigned int result;
__asm__("push %%ebx\n"
"mov $0x80000000, %%eax\n"
"cpuid\n"
"xor %%edx, %%edx\n"
"cmp $0x1, %%eax\n"
"jge 2\n"
"mov $0x80000001, %%eax\n"
"cpuid\n"
"2:\n"
"pop %%ebx\n"
"mov %%edx, %0\n"
: "=r" (result)
:
: "%eax", "%ecx", "%edx"
);
if (result & (1<<22))
features |= MMX_Extensions;
}
}
#endif /* HAVE_GETISAX */
return features;
}
Bool
fbHaveMMX (void)
{
static Bool initialized = FALSE;
static Bool mmx_present;
if (!initialized)
{
unsigned int features = detectCPUFeatures();
mmx_present = (features & (MMX|MMX_Extensions)) == (MMX|MMX_Extensions);
initialized = TRUE;
}
return mmx_present;
}
#endif /* __amd64__ */
#endif
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