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/* $XFree86: xc/programs/Xserver/hw/xfree86/xf4bpp/emulOpStip.c,v 1.2 1998/07/25 16:59:27 dawes 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.
*
*/
/* $XConsortium: emulOpStip.c /main/4 1996/02/21 17:56:12 kaleb $ */
/* ppc OpaqueStipple
*
* Based on the private stipple; does a foreground, and then an inverted
* on the background
*
*/
#include "xf4bpp.h"
#include "OScompiler.h"
#include "mfbmap.h"
#include "mfb.h"
void
xf4bppOpaqueStipple( pWin, pStipple, fg, bg, alu, planes, x, y, w, h, xSrc, ySrc )
WindowPtr pWin; /* GJA */
register PixmapPtr pStipple ;
unsigned long int fg ;
unsigned long int bg ;
int alu ;
unsigned long int planes ;
register int x, y, w, h ;
int xSrc, ySrc ;
{
/* DO BACKGROUND */
switch ( alu ) {
/* Easy Cases -- i.e. Final Result Doesn't Depend On Initial Dest. */
case GXclear: /* 0x0 Zero 0 */
case GXset: /* 0xf 1 */
/* Foreground And Background Are Both The Same !! */
xf4bppFillSolid( pWin, bg, alu, planes, x, y, w, h ) ;
case GXnoop: /* 0x5 dst */
break ;
case GXcopy: /* 0x3 src */
case GXcopyInverted: /* 0xc NOT src */
{ /* Special Case Code */
register int vtarget, htarget ;
/* We Can Draw Just One Copy Then Blit The Rest !! */
/* Draw The One Copy */
htarget = MIN( w, pStipple->drawable.width ) ;
vtarget = MIN( h, pStipple->drawable.height ) ;
/* First The Background */
xf4bppFillSolid( pWin, bg, alu, planes, x, y,
htarget, vtarget ) ;
/* Then The Foreground */
xf4bppFillStipple( pWin, pStipple, fg, alu, planes,
x, y, htarget, vtarget,
xSrc, ySrc ) ;
/* Here We Double The Size Of The BLIT Each Iteration */
xf4bppReplicateArea(pWin, x, y, planes, w, h, htarget, vtarget);
}
break ;
default:
/* Hard Cases -- i.e. Final Result DOES Depend On Initial Dest. */
{ /* Do The Background */
register int i, j;
register PixmapPtr pInvPixmap = xf4bppCopyPixmap( pStipple ) ;
register unsigned char *data = pInvPixmap->devPrivate.ptr ;
/* INVERT PIXMAP OK, jeff, this is for you */
for ( i = pInvPixmap->drawable.height ; i-- ; )
for ( j = pInvPixmap->devKind ; j-- ; data++ )
*data = ~ ( *data ) ;
xf4bppFillStipple( pWin, pInvPixmap, bg, alu, planes, x, y, w, h, xSrc, ySrc );
mfbDestroyPixmap( pInvPixmap ) ;
/* DO FOREGROUND */
xf4bppFillStipple( pWin, pStipple, fg, alu, planes, x, y, w, h, xSrc, ySrc );
}
break ;
}
return;
}
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