503 lines
17 KiB
C
503 lines
17 KiB
C
/* $XFree86: xc/programs/Xserver/hw/xfree86/xf4bpp/ppcPixFS.c,v 1.5 2003/11/03 05:11:57 tsi Exp $ */
|
|
/*
|
|
* Copyright IBM Corporation 1987,1988,1989
|
|
*
|
|
* All Rights Reserved
|
|
*
|
|
* Permission to use, copy, modify, and distribute this software and its
|
|
* documentation for any purpose and without fee is hereby granted,
|
|
* 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 IBM not be
|
|
* used in advertising or publicity pertaining to distribution of the
|
|
* software without specific, written prior permission.
|
|
*
|
|
* IBM DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
|
|
* ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
|
|
* IBM 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.
|
|
*
|
|
*/
|
|
|
|
/******************************************************************
|
|
Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts.
|
|
|
|
All Rights Reserved
|
|
|
|
Permission to use, copy, modify, and distribute this software and its
|
|
documentation for any purpose and without fee is hereby granted,
|
|
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 Digital not be
|
|
used in advertising or publicity pertaining to distribution of the
|
|
software without specific, written prior permission.
|
|
|
|
DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
|
|
ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
|
|
DIGITAL 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.
|
|
|
|
******************************************************************/
|
|
/* $XConsortium: ppcPixFS.c /main/3 1996/02/21 17:57:57 kaleb $ */
|
|
|
|
#include "xf4bpp.h"
|
|
#include "mfbmap.h"
|
|
#include "mfb.h"
|
|
#include "maskbits.h"
|
|
#include "mi.h"
|
|
#include "mispans.h"
|
|
#include "ppcGCstr.h"
|
|
#include "ppcSpMcro.h"
|
|
#include "vgaVideo.h"
|
|
#include "ibmTrace.h"
|
|
|
|
#define LeftMostBitInScreenLongWord SCRLEFT( 0xFFFFFFFF, 31 )
|
|
|
|
/* GJA -- copied this from VGA */
|
|
#define SCRLEFT8(lw, n) ( (unsigned char) (((unsigned char) lw) << (n)) )
|
|
#define SCRRIGHT8(lw, n) ( (unsigned char) (((unsigned char)lw) >> (n)) )
|
|
/*
|
|
********** ********** ********** ********** ********** ********** **********
|
|
these routines all clip. they assume that anything that has called
|
|
them has already translated the points (i.e. pGC->miTranslate is
|
|
non-zero, which is howit gets set in mfbCreateGC().)
|
|
|
|
the number of new scnalines created by clipping ==
|
|
MaxRectsPerBand * nSpans.
|
|
********** ********** ********** ********** ********** ********** **********
|
|
*/
|
|
/* A mod definition that goes smoothly into the negative.
|
|
*/
|
|
static int
|
|
modulo
|
|
(
|
|
int n1,
|
|
int n2
|
|
)
|
|
{
|
|
int tmp;
|
|
if ( n1 < 0 ) {
|
|
tmp = (-n1) % n2;
|
|
if ( tmp == 0 ) {
|
|
return 0;
|
|
} else {
|
|
return n2 - tmp;
|
|
}
|
|
} else {
|
|
return n1 % n2;
|
|
}
|
|
}
|
|
|
|
void
|
|
xf4bppSolidPixmapFS( pDrawable, pGC, nInit, pptInit, pwidthInit, fSorted )
|
|
DrawablePtr pDrawable ;
|
|
GCPtr pGC ;
|
|
int nInit ; /* number of spans to fill */
|
|
DDXPointPtr pptInit ; /* pointer to list of start points */
|
|
int *pwidthInit ; /* pointer to list of n widths */
|
|
int fSorted ;
|
|
{
|
|
register unsigned long int pm, npm ;
|
|
register unsigned long int fg ;
|
|
register int alu ;
|
|
/* next three parameters are post-clip */
|
|
int n ; /* number of spans to fill */
|
|
register DDXPointPtr ppt ; /* pointer to list of start points */
|
|
register int *pwidth ; /* pointer to list of n widths */
|
|
register unsigned char *addrl ; /* pointer to current longword in bitmap */
|
|
int i ;
|
|
int *pwidthFree ; /* copies of the pointers to free */
|
|
DDXPointPtr pptFree ;
|
|
|
|
TRACE(("xf4bppSolidPixmapFS(pDrawable=0x%x, pGC=0x%x, nInit=%d, pptInit=0x%x, pwidthInit=0x%x, fSorted=%d)\n", pDrawable, pGC, nInit, pptInit, pwidthInit, fSorted)) ;
|
|
|
|
if ( pDrawable->type != DRAWABLE_PIXMAP ) {
|
|
ErrorF("xf4bppSolidPixmapFS: drawable is not a pixmap\n") ;
|
|
return ;
|
|
}
|
|
|
|
if ( ( alu = ( (ppcPrivGC *) pGC->devPrivates[mfbGCPrivateIndex].ptr )->colorRrop.alu ) == GXnoop )
|
|
return ;
|
|
|
|
n = nInit * miFindMaxBand(pGC->pCompositeClip) ;
|
|
if ( !( pwidthFree = (int *) ALLOCATE_LOCAL( n * sizeof( int ) ) ) )
|
|
return ;
|
|
pwidth = pwidthFree ;
|
|
|
|
if ( !( pptFree = (DDXPointRec *)
|
|
ALLOCATE_LOCAL( n * sizeof( DDXPointRec ) ) ) ) {
|
|
DEALLOCATE_LOCAL( pwidth ) ;
|
|
return ;
|
|
}
|
|
ppt = pptFree ;
|
|
|
|
n = miClipSpans( pGC->pCompositeClip, pptInit, pwidthInit, nInit,
|
|
ppt, pwidth, fSorted ) ;
|
|
|
|
pm = ( (ppcPrivGC *) pGC->devPrivates[mfbGCPrivateIndex].ptr )->colorRrop.planemask ;
|
|
fg = ( (ppcPrivGC *) pGC->devPrivates[mfbGCPrivateIndex].ptr )->colorRrop.fgPixel ;
|
|
npm = ( ~ pm ) & ( ( 1 << pDrawable->depth ) - 1 ) ;
|
|
|
|
for ( ; n-- ; ppt++, pwidth++ ) {
|
|
addrl = ( (unsigned char *) ( ( (PixmapPtr) pDrawable )->devPrivate.ptr ) )
|
|
+ ( ppt->y * ( (int) ( ( (PixmapPtr) pDrawable )->devKind ) ) )
|
|
+ ppt->x ;
|
|
for ( i = *pwidth ; i-- ; addrl++ )
|
|
{
|
|
unsigned _p;
|
|
DoRop( _p, alu, fg, *addrl );
|
|
*addrl = ( *addrl & npm ) | ( pm & _p ) ;
|
|
}
|
|
#ifdef notdef /* PURDUE */
|
|
*addrl = ( *addrl & npm ) | ( pm & DoRop( alu, fg, *addrl ) ) ;
|
|
#endif /* PURDUE */
|
|
}
|
|
DEALLOCATE_LOCAL( pptFree ) ;
|
|
DEALLOCATE_LOCAL( pwidthFree ) ;
|
|
return ;
|
|
}
|
|
|
|
/* GJA -- copied from vgaStipple.c */
|
|
static unsigned char
|
|
vgagetbits
|
|
(
|
|
register const int x,
|
|
register const unsigned int patternWidth,
|
|
register const unsigned char * const lineptr
|
|
)
|
|
{
|
|
register unsigned char bits ;
|
|
register const unsigned char *cptr ;
|
|
register int shift ;
|
|
register int wrap ;
|
|
|
|
cptr = lineptr + ( x >> 3 ) ;
|
|
bits = *cptr ;
|
|
if ((shift = x & 7))
|
|
bits = SCRLEFT8( bits, shift ) | SCRRIGHT8( cptr[1], ( 8 - shift ) ) ;
|
|
if ( ( wrap = x + 8 - patternWidth ) > 0 ) {
|
|
bits &= SCRLEFT8( 0xFF, wrap ) ;
|
|
bits |= SCRRIGHT8( *lineptr, ( 8 - wrap ) ) ;
|
|
}
|
|
|
|
/* GJA -- Handle extraction of 8 bits from < 8 bits wide stipple.
|
|
* I duplicated case 4,5,6,7 to give the compiler a chance to optimize.
|
|
*/
|
|
switch (patternWidth) {
|
|
case 1: /* Not really useful. */
|
|
bits &= ~SCRRIGHT8(0xFF,1);
|
|
bits |= SCRRIGHT8(bits,1);
|
|
bits |= SCRRIGHT8(bits,2);
|
|
bits |= SCRRIGHT8(bits,4);
|
|
break;
|
|
case 2:
|
|
bits &= ~SCRRIGHT8(0xFF,2);
|
|
bits |= SCRRIGHT8(bits,2); bits |= SCRRIGHT8(bits,4); break;
|
|
case 3:
|
|
bits &= ~SCRRIGHT8(0xFF,3);
|
|
bits |= (SCRRIGHT8(bits,3) | SCRRIGHT8(bits,6)); break;
|
|
case 4:
|
|
bits = (bits & ~SCRRIGHT8(0xFF,4)) | SCRRIGHT8(bits,4); break;
|
|
case 5:
|
|
bits = (bits & ~SCRRIGHT8(0xFF,5)) | SCRRIGHT8(bits,5); break;
|
|
case 6:
|
|
bits = (bits & ~SCRRIGHT8(0xFF,6)) | SCRRIGHT8(bits,6); break;
|
|
case 7:
|
|
bits = (bits & ~SCRRIGHT8(0xFF,7)) | SCRRIGHT8(bits,7); break;
|
|
default:
|
|
;
|
|
/* Do nothing, of course */
|
|
}
|
|
|
|
return bits ;
|
|
}
|
|
|
|
void
|
|
xf4bppStipplePixmapFS( pDrawable, pGC, nInit, pptInit, pwidthInit, fSorted )
|
|
register DrawablePtr pDrawable ;
|
|
GC *pGC ;
|
|
int nInit ; /* number of spans to fill */
|
|
DDXPointPtr pptInit ; /* pointer to list of start points */
|
|
int *pwidthInit ; /* pointer to list of n widths */
|
|
int fSorted ;
|
|
{
|
|
register unsigned char *pdst ; /* pointer to current word in bitmap */
|
|
register int *psrc ; /* pointer to current word in tile */
|
|
register unsigned long int pm, npm ;
|
|
register unsigned long int fg ;
|
|
register int alu ;
|
|
/* next three parameters are post-clip */
|
|
int n ; /* number of spans to fill */
|
|
register DDXPointPtr ppt ; /* pointer to list of start points */
|
|
register int *pwidth ; /* pointer to list of n widths */
|
|
PixmapPtr pTile ; /* pointer to tile we want to fill with */
|
|
int width, x, xSrc, ySrc ;
|
|
int tlwidth, tileWidth ;
|
|
unsigned char *psrcT ;
|
|
int *pwidthFree ; /* copies of the pointers to free */
|
|
DDXPointPtr pptFree ;
|
|
int xoff, count, stip, i ;
|
|
|
|
TRACE(("xf4bppStipplePixmapFS(pDrawable=0x%x, pGC=0x%x, nInit=%d, pptInit=0x%x, pwidthInit=0x%x, fSorted=%d)\n",
|
|
pDrawable, pGC, nInit, pptInit, pwidthInit, fSorted)) ;
|
|
|
|
if ( pDrawable->type != DRAWABLE_PIXMAP ) {
|
|
ErrorF( "xf4bppStippleWindowFS: drawable is not a pixmap\n") ;
|
|
return ;
|
|
}
|
|
if ( pGC->stipple->drawable.depth != 1 ) {
|
|
ErrorF( "ppcStippleFS: bad depth\ntype = %d, depth = %d\n",
|
|
pDrawable->type, pGC->stipple->drawable.depth ) ;
|
|
return ;
|
|
}
|
|
|
|
if ( ( alu = ( (ppcPrivGC *) pGC->devPrivates[mfbGCPrivateIndex].ptr )->colorRrop.alu ) == GXnoop )
|
|
return ;
|
|
|
|
SETSPANPTRS( nInit, n, pwidthInit, pwidthFree, pptInit,
|
|
pptFree, pwidth, ppt, fSorted ) ;
|
|
|
|
pm = ( (ppcPrivGC *) pGC->devPrivates[mfbGCPrivateIndex].ptr )->colorRrop.planemask ;
|
|
fg = ( (ppcPrivGC *) pGC->devPrivates[mfbGCPrivateIndex].ptr )->colorRrop.fgPixel ;
|
|
|
|
pTile = pGC->stipple ;
|
|
tlwidth = pTile->devKind ;
|
|
|
|
tileWidth = pTile->drawable.width ;
|
|
|
|
npm = ( ~ pm ) & ( ( 1 << pDrawable->depth ) - 1 ) ;
|
|
|
|
/* this replaces rotating the stipple. Instead, we just adjust the offset
|
|
* at which we start grabbing bits from the stipple */
|
|
xSrc = pGC->patOrg.x + pDrawable->x;
|
|
ySrc = pGC->patOrg.y + pDrawable->y;
|
|
|
|
while ( n-- ) {
|
|
pdst = ( (unsigned char *) ( (PixmapPtr) pDrawable )->devPrivate.ptr )
|
|
+ ( ppt->y * ( (int) ( ( (PixmapPtr) pDrawable )->devKind ) ) )
|
|
+ ppt->x ;
|
|
psrcT = (unsigned char *)pTile->devPrivate.ptr
|
|
+ ( modulo( ppt->y - ySrc, pTile->drawable.height ) * tlwidth ) ;
|
|
x = ppt->x ;
|
|
|
|
xoff = modulo( x - xSrc, tileWidth) ;
|
|
for ( width = *pwidth ; width ; psrc++, width -= count, xoff+=count ) {
|
|
|
|
if ( xoff >= tileWidth ) xoff -= tileWidth;
|
|
|
|
if ( width < 8 )
|
|
count = width;
|
|
else
|
|
count = 8;
|
|
|
|
stip = vgagetbits( xoff, tileWidth, psrcT ) ;
|
|
|
|
for ( i = count ; i-- ; ) {
|
|
if ( stip & 128 )
|
|
{
|
|
unsigned _p;
|
|
DoRop( _p, alu, fg, *pdst ) ;
|
|
*pdst = ( *pdst & npm ) | ( pm & _p ) ;
|
|
}
|
|
#ifdef notdef /* PURDUE */
|
|
*pdst = ( *pdst & npm ) | ( pm & DoRop( alu, fg, *pdst ) ) ;
|
|
#endif /* PURDUE */
|
|
pdst++ ;
|
|
stip = SCRLEFT( stip, 1 ) ;
|
|
}
|
|
}
|
|
ppt++ ;
|
|
pwidth++ ;
|
|
}
|
|
DEALLOCATE_LOCAL( pptFree ) ;
|
|
DEALLOCATE_LOCAL( pwidthFree ) ;
|
|
return ;
|
|
}
|
|
|
|
void
|
|
xf4bppOpStipplePixmapFS( pDrawable, pGC, nInit, pptInit, pwidthInit, fSorted )
|
|
DrawablePtr pDrawable ;
|
|
GC *pGC ;
|
|
int nInit ; /* number of spans to fill */
|
|
DDXPointPtr pptInit ; /* pointer to list of start points */
|
|
int *pwidthInit ; /* pointer to list of n widths */
|
|
int fSorted ;
|
|
{
|
|
register unsigned char *pdst ; /* pointer to current word in bitmap */
|
|
register unsigned long int pm, npm ;
|
|
register unsigned long int fg, bg ;
|
|
register int alu ;
|
|
/* next three parameters are post-clip */
|
|
int n ; /* number of spans to fill */
|
|
register DDXPointPtr ppt ; /* pointer to list of start points */
|
|
register int *pwidth ; /* pointer to list of n widths */
|
|
register int *psrc ; /* pointer to current word in tile */
|
|
PixmapPtr pTile ; /* pointer to tile we want to fill with */
|
|
int width ;
|
|
int xSrc, ySrc ;
|
|
int tlwidth, tileWidth ;
|
|
unsigned char *psrcT ;
|
|
int *pwidthFree ; /* copies of the pointers to free */
|
|
DDXPointPtr pptFree ;
|
|
int xoff, count, stip, i ;
|
|
|
|
TRACE( ( "xf4bppOpStipplePixmapFS(pDrawable=0x%x,pGC=0x%x,nInit=%d,pptInit=0x%x,pwidthInit=0x%x,fSorted=%d)\n",
|
|
pDrawable, pGC, nInit, pptInit, pwidthInit, fSorted ) ) ;
|
|
|
|
if ( pGC->stipple->drawable.depth != 1 ) {
|
|
ErrorF( "xf4bppOpStipplePixmapFS: bad depth\ntype = %d, depth = %d\n",
|
|
pDrawable->type, pGC->stipple->drawable.depth ) ;
|
|
return ;
|
|
}
|
|
|
|
if ( ( alu = ( (ppcPrivGC *) pGC->devPrivates[mfbGCPrivateIndex].ptr )->colorRrop.alu ) == GXnoop )
|
|
return ;
|
|
|
|
SETSPANPTRS( nInit, n, pwidthInit, pwidthFree, pptInit,
|
|
pptFree, pwidth, ppt, fSorted ) ;
|
|
|
|
fg = ( (ppcPrivGC *) pGC->devPrivates[mfbGCPrivateIndex].ptr )->colorRrop.fgPixel ;
|
|
bg = ( (ppcPrivGC *) pGC->devPrivates[mfbGCPrivateIndex].ptr )->colorRrop.bgPixel ;
|
|
pm = ( (ppcPrivGC *) pGC->devPrivates[mfbGCPrivateIndex].ptr )->colorRrop.planemask ;
|
|
npm = ( ~ pm ) & ( ( 1 << pDrawable->depth ) - 1 ) ;
|
|
|
|
pTile = pGC->stipple ;
|
|
tlwidth = pTile->devKind ;
|
|
tileWidth = pTile->drawable.width ;
|
|
|
|
xSrc = pGC->patOrg.x + pDrawable->x;
|
|
ySrc = pGC->patOrg.y + pDrawable->y;
|
|
|
|
/* this replaces rotating the stipple. Instead, we just adjust the offset
|
|
* at which we start grabbing bits from the stipple */
|
|
for ( ; n-- ; ppt++, pwidth++ ) {
|
|
pdst = ( (unsigned char *) ( (PixmapPtr) pDrawable )->devPrivate.ptr )
|
|
+ ( ppt->y * ( (int) ( (PixmapPtr) pDrawable )->devKind ) )
|
|
+ ppt->x ;
|
|
psrcT = (unsigned char *)pTile->devPrivate.ptr
|
|
+ ( modulo( ppt->y - ySrc, pTile->drawable.height ) * tlwidth ) ;
|
|
|
|
xoff = modulo( ppt->x - xSrc, tileWidth) ;
|
|
|
|
for ( width = *pwidth ; width ; psrc++, width -= count, xoff+=count ) {
|
|
|
|
if ( xoff >= tileWidth ) xoff -= tileWidth;
|
|
|
|
if ( width < 8 )
|
|
count = width;
|
|
else
|
|
count = 8;
|
|
|
|
stip = vgagetbits( xoff, tileWidth, psrcT ) ;
|
|
for ( i = count ; i-- ; pdst++, stip = SCRLEFT( stip, 1 ) )
|
|
if ( stip & 128 )
|
|
{
|
|
unsigned _p;
|
|
DoRop( _p, alu, fg, *pdst ) ;
|
|
*pdst = ( *pdst & npm ) | ( pm & _p ) ;
|
|
}
|
|
#ifdef notdef /* PURDUE */
|
|
*pdst = ( *pdst & npm ) | ( pm & DoRop( alu, fg, *pdst ) ) ;
|
|
#endif /* PURDUE */
|
|
else
|
|
{
|
|
unsigned _p;
|
|
DoRop( _p, alu, bg, *pdst ) ;
|
|
*pdst = ( *pdst & npm ) | ( pm & _p ) ;
|
|
}
|
|
#ifdef notdef /* PURDUE */
|
|
*pdst = ( *pdst & npm ) | ( pm & DoRop( alu, bg, *pdst ) ) ;
|
|
#endif /* PURDUE */
|
|
}
|
|
}
|
|
DEALLOCATE_LOCAL( pptFree ) ;
|
|
DEALLOCATE_LOCAL( pwidthFree ) ;
|
|
return ;
|
|
}
|
|
|
|
void
|
|
xf4bppTilePixmapFS( pDrawable, pGC, nInit, pptInit, pwidthInit, fSorted )
|
|
register DrawablePtr pDrawable ;
|
|
GC *pGC ;
|
|
int nInit ; /* number of spans to fill */
|
|
DDXPointPtr pptInit ; /* pointer to list of start points */
|
|
int *pwidthInit ; /* pointer to list of n widths */
|
|
int fSorted ;
|
|
{
|
|
register DDXPointPtr ppt ; /* pointer to list of start points */
|
|
register int *pwidth ; /* pointer to list of n widths */
|
|
register unsigned char *pdst ; /* pointer to current word in bitmap */
|
|
register unsigned char *psrc ; /* pointer to current word in tile */
|
|
register PixmapPtr pTile ; /* pointer to tile we want to fill with */
|
|
int i ;
|
|
int alu ;
|
|
unsigned char pm, npm ;
|
|
/* next three parameters are post-clip */
|
|
int n ; /* number of spans to fill */
|
|
int tileWidth ;
|
|
int xSrc, ySrc;
|
|
unsigned char *psrcT ;
|
|
int *pwidthFree ; /* copies of the pointers to free */
|
|
DDXPointPtr pptFree ;
|
|
|
|
TRACE( ( "ppcTileFS(pDrawable=0x%x,pGC=0x%x,nInit=%d,pptInit=0x%x,pwidthInit=0x%x,fSorted=%d)\n",
|
|
pDrawable, pGC, nInit, pptInit, pwidthInit, fSorted ) ) ;
|
|
|
|
if ( ( pDrawable->depth == 1 ) && ( pDrawable->type == DRAWABLE_PIXMAP ) ) {
|
|
mfbTileFS( pDrawable, pGC, nInit, pptInit, pwidthInit, fSorted ) ;
|
|
return ;
|
|
}
|
|
if ( !xf4bppDepthOK( pDrawable, pGC->tile.pixmap->drawable.depth ) ) {
|
|
ErrorF( "ppcTileFS: bad depth\ntype = %d, depth = %d\n",
|
|
pDrawable->type, pDrawable->depth) ;
|
|
return ;
|
|
}
|
|
|
|
if ( ( alu = ( (ppcPrivGC *) pGC->devPrivates[mfbGCPrivateIndex].ptr )->colorRrop.alu ) == GXnoop )
|
|
return ;
|
|
|
|
SETSPANPTRS( nInit, n, pwidthInit, pwidthFree, pptInit,
|
|
pptFree, pwidth, ppt, fSorted ) ;
|
|
|
|
/* the following code is for 8 bits per pixel addressable memory only */
|
|
pm = ( (ppcPrivGC *) pGC->devPrivates[mfbGCPrivateIndex].ptr )->colorRrop.planemask ;
|
|
npm = ( ~ pm ) & ( ( 1 << pDrawable->depth ) - 1 ) ;
|
|
pTile = pGC->tile.pixmap ;
|
|
tileWidth = pTile->drawable.width ;
|
|
|
|
xSrc = pGC->patOrg.x + pDrawable->x;
|
|
ySrc = pGC->patOrg.y + pDrawable->y;
|
|
/* this replaces rotating the tile. Instead we just adjust the offset
|
|
* at which we start grabbing bits from the tile */
|
|
for ( ; n-- ; ppt++, pwidth++ ) {
|
|
pdst = ( (unsigned char *) ( (PixmapPtr) pDrawable )->devPrivate.ptr )
|
|
+ ( ppt->y * ( (int) ( (PixmapPtr) pDrawable )->devKind ) )
|
|
+ ppt->x ;
|
|
psrcT = (unsigned char *) pTile->devPrivate.ptr
|
|
+ ( modulo( ppt->y - ySrc, pTile->drawable.height) * pTile->devKind ) ;
|
|
|
|
psrc = psrcT + modulo( ppt->x - xSrc, tileWidth ) ;
|
|
for ( i = *pwidth ; i-- ; pdst++, psrc++ ) {
|
|
if ( psrc >= ( psrcT + tileWidth ) )
|
|
psrc = psrcT ;
|
|
{
|
|
unsigned _p;
|
|
DoRop( _p, alu, *psrc, *pdst ) ;
|
|
*pdst = ( *pdst & npm ) | ( pm & _p ) ;
|
|
}
|
|
#ifdef notdef /* PURDUE */
|
|
*pdst = ( *pdst & npm ) | ( pm & DoRop( alu, *psrc, *pdst ) ) ;
|
|
#endif /* PURDUE */
|
|
}
|
|
}
|
|
DEALLOCATE_LOCAL( pptFree ) ;
|
|
DEALLOCATE_LOCAL( pwidthFree ) ;
|
|
return ;
|
|
}
|