575 lines
15 KiB
C
575 lines
15 KiB
C
/*
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* Copyright IBM Corporation 1987,1988,1989
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*
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* All Rights Reserved
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*
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* Permission to use, copy, modify, and distribute this software and its
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* documentation for any purpose and without fee is hereby granted,
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* provided that the above copyright notice appear in all copies and that
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* both that copyright notice and this permission notice appear in
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* supporting documentation, and that the name of IBM not be
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* used in advertising or publicity pertaining to distribution of the
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* software without specific, written prior permission.
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*
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* IBM DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
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* ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
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* IBM BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
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* ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
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* WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
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* ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
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* SOFTWARE.
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*
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*/
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#ifdef HAVE_XORG_CONFIG_H
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#include <xorg-config.h>
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#endif
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#include "xf4bpp.h"
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#include "OScompiler.h"
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#include "vgaReg.h"
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#include "vgaVideo.h"
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#include "xf86str.h" /* for pScrn->vtSema */
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extern ScrnInfoPtr *xf86Screens;
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#undef TRUE
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#undef FALSE
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#define TRUE 1
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#define FALSE 0
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#ifndef PC98_EGC
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#ifdef USE_ASM
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extern void fastFill();
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extern void fastFillRMW();
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#else
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static void fastFill
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(
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register volatile unsigned char *destination,
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register const unsigned int bytes_per_line,
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register const unsigned int bytewidth, /* MUST BE > 0 !! */
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register unsigned int height /* MUST BE > 0 !! */
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)
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{
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int stop_count = bytewidth ;
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register int row_jump = bytes_per_line - bytewidth ;
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#if !defined(OLDHC) && defined(BSDrt) && !defined(__i386__)
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register const unsigned int notZero = ((unsigned char)(~0x0));
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#else
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#define notZero ((unsigned char)(~0))
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#endif
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#define SINGLE_STORE \
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( *( (VgaMemoryPtr) destination ) = notZero ); \
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destination++; stop_count--;
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/* TOP OF FIRST LOOP */
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BranchPoint:
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switch ( bytewidth & 0xF ) { /* Jump into loop at mod 16 remainder */
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LoopTop :
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case 0x0 : SINGLE_STORE ;
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case 0xF : SINGLE_STORE ;
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case 0xE : SINGLE_STORE ;
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case 0xD : SINGLE_STORE ;
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case 0xC : SINGLE_STORE ;
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case 0xB : SINGLE_STORE ;
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case 0xA : SINGLE_STORE ;
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case 0x9 : SINGLE_STORE ;
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case 0x8 : SINGLE_STORE ;
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case 0x7 : SINGLE_STORE ;
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case 0x6 : SINGLE_STORE ;
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case 0x5 : SINGLE_STORE ;
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case 0x4 : SINGLE_STORE ;
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case 0x3 : SINGLE_STORE ;
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case 0x2 : SINGLE_STORE ;
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case 0x1 : SINGLE_STORE ;
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/* FIRST LOOP */
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if ( stop_count )
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goto LoopTop ;
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/* SECOND LOOP */
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if ( --height ) {
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destination += row_jump ;
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stop_count = bytewidth ;
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goto BranchPoint ;
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}
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else
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return ;
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#undef SINGLE_STORE
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}
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/*NOTREACHED*/
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}
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/* For Read-Modify-Write Case */
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static void fastFillRMW
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(
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register volatile unsigned char *destination,
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register const unsigned int bytes_per_line,
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register const unsigned int bytewidth, /* MUST BE > 0 !! */
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register unsigned int height /* MUST BE > 0 !! */
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)
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{
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int stop_count = bytewidth ;
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register int row_jump = bytes_per_line - bytewidth ;
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#if !defined(OLDHC) && defined(BSDrt) && !defined(__i386__)
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register const unsigned int notZero = ((unsigned char)(~0x0));
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#endif
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register int tmp ;
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#define SINGLE_STORE \
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tmp = *( (VgaMemoryPtr) destination ) ; (void)tmp; \
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( *( (VgaMemoryPtr) destination ) = notZero ) ; \
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destination++; stop_count-- ;
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/* TOP OF FIRST LOOP */
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BranchPoint:
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switch ( bytewidth & 0xF ) { /* Jump into loop at mod 16 remainder */
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LoopTop :
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case 0x0 : SINGLE_STORE ;
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case 0xF : SINGLE_STORE ;
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case 0xE : SINGLE_STORE ;
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case 0xD : SINGLE_STORE ;
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case 0xC : SINGLE_STORE ;
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case 0xB : SINGLE_STORE ;
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case 0xA : SINGLE_STORE ;
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case 0x9 : SINGLE_STORE ;
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case 0x8 : SINGLE_STORE ;
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case 0x7 : SINGLE_STORE ;
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case 0x6 : SINGLE_STORE ;
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case 0x5 : SINGLE_STORE ;
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case 0x4 : SINGLE_STORE ;
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case 0x3 : SINGLE_STORE ;
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case 0x2 : SINGLE_STORE ;
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case 0x1 : SINGLE_STORE ;
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/* FIRST LOOP */
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if ( stop_count )
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goto LoopTop ;
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/* SECOND LOOP */
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if ( --height ) {
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destination += row_jump ;
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stop_count = bytewidth ;
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goto BranchPoint ;
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}
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else
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return ;
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}
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#undef SINGLE_STORE
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/*NOTREACHED*/
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}
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#endif
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void xf4bppFillSolid( pWin, color, alu, planes, x0, y0, lx, ly )
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WindowPtr pWin; /* GJA */
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unsigned long int color ;
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const int alu ;
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unsigned long int planes ;
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register int x0 ;
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register const int y0 ;
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register int lx ;
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register const int ly ; /* MUST BE > 0 !! */
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{
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IOADDRESS REGBASE;
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register volatile unsigned char *dst ;
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register int tmp ;
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register int tmp2 ;
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register int tmp3 ;
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unsigned int data_rotate_value = VGA_COPY_MODE ;
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unsigned int read_write_modify = FALSE ;
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unsigned int invert_existing_data = FALSE ;
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{ /* Start GJA */
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if ( !xf86Screens[((DrawablePtr)pWin)->pScreen->myNum]->vtSema ) {
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xf4bppOffFillSolid( pWin, color, alu, planes, x0, y0, lx, ly );
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return;
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}
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} /* End GJA */
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if ( ( lx == 0 ) || ( ly == 0 ) )
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return;
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switch ( alu ) {
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case GXclear: /* 0x0 Zero 0 */
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color = 0 ;
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break ;
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case GXnor: /* 0x8 NOT src AND NOT dst */
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invert_existing_data = TRUE ;
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case GXandInverted: /* 0x4 NOT src AND dst */
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color = ~color ;
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case GXand: /* 0x1 src AND dst */
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data_rotate_value = VGA_AND_MODE ;
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read_write_modify = TRUE ;
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case GXcopy: /* 0x3 src */
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break ;
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case GXnoop: /* 0x5 dst */
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return ;
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case GXequiv: /* 0x9 NOT src XOR dst */
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color = ~color ;
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case GXxor: /* 0x6 src XOR dst */
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data_rotate_value = VGA_XOR_MODE ;
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read_write_modify = TRUE ;
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planes &= color ;
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break ;
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case GXandReverse: /* 0x2 src AND NOT dst */
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invert_existing_data = TRUE ;
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data_rotate_value = VGA_AND_MODE ;
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read_write_modify = TRUE ;
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break ;
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case GXorReverse: /* 0xb src OR NOT dst */
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invert_existing_data = TRUE ;
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data_rotate_value = VGA_OR_MODE ;
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read_write_modify = TRUE ;
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break ;
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case GXnand: /* 0xe NOT src OR NOT dst */
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invert_existing_data = TRUE ;
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case GXorInverted: /* 0xd NOT src OR dst */
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color = ~color ;
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case GXor: /* 0x7 src OR dst */
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data_rotate_value = VGA_OR_MODE ;
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read_write_modify = TRUE ;
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break ;
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case GXcopyInverted: /* 0xc NOT src */
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color = ~color ;
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break ;
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case GXinvert: /* 0xa NOT dst */
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data_rotate_value = VGA_XOR_MODE ;
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read_write_modify = TRUE ;
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case GXset: /* 0xf 1 */
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color = VGA_ALLPLANES ;
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default:
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break ;
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}
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if ( !( planes &= VGA_ALLPLANES ) )
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return ;
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REGBASE =
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xf86Screens[((DrawablePtr)pWin)->pScreen->myNum]->domainIOBase + 0x300;
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/*
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* Set The Plane-Enable
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*/
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SetVideoSequencer( Mask_MapIndex, planes ) ;
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SetVideoGraphics( Enb_Set_ResetIndex, planes ) ;
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/*
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* Put Display Into SET/RESET Write Mode
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*/
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SetVideoGraphics( Graphics_ModeIndex, VGA_WRITE_MODE_3 ) ;
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/*
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* Set The Color in The Set/Reset Register
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*/
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SetVideoGraphics( Set_ResetIndex, color & VGA_ALLPLANES ) ;
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/*
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* Set The Function-Select In The Data Rotate Register
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*/
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SetVideoGraphics( Data_RotateIndex, data_rotate_value ) ;
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/* Do Left Edge */
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if ((tmp = x0 & 07)) {
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tmp2 = SCRRIGHT8( ( (unsigned) 0xFF ), tmp ) ;
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/* Catch The Cases Where The Entire Region Is Within One Byte */
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if ( ( lx -= 8 - tmp ) < 0 ) {
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tmp2 &= SCRLEFT8( 0xFF, -lx ) ;
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lx = 0 ;
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}
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/* Set The Bit Mask Reg */
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SetVideoGraphics(Bit_MaskIndex, tmp2 ) ;
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if ( invert_existing_data == TRUE ) {
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SetVideoGraphics( Set_ResetIndex, VGA_ALLPLANES ) ;
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SetVideoGraphics( Data_RotateIndex, VGA_XOR_MODE ) ;
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dst = SCREENADDRESS( pWin, x0, y0 );
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for ( tmp = ly;
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tmp-- ; ) {
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tmp3 = *( (VgaMemoryPtr) dst ) ;
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(void)tmp3;
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*( (VgaMemoryPtr) dst ) = tmp2 ;
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dst += BYTES_PER_LINE(pWin);
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}
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SetVideoGraphics( Set_ResetIndex, color & VGA_ALLPLANES ) ;
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SetVideoGraphics( Data_RotateIndex, data_rotate_value ) ;
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/* Un-Set XOR */
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}
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dst = SCREENADDRESS( pWin, x0, y0 );
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for ( tmp = ly;
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tmp-- ; ) {
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tmp3 = *( (VgaMemoryPtr) dst ) ;
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(void)tmp3;
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*( (VgaMemoryPtr) dst ) = tmp2 ;
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dst += BYTES_PER_LINE(pWin);
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}
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if ( !lx ) { /* All Handled In This Byte */
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return ;
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}
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x0 = ( x0 + 8 ) & ~07 ;
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}
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/* Fill The Center Of The Box */
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if ( ROW_OFFSET( lx ) ) {
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SetVideoGraphics(Bit_MaskIndex, 0xFF ) ;
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if ( invert_existing_data == TRUE ) {
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SetVideoGraphics( Set_ResetIndex, VGA_ALLPLANES ) ;
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SetVideoGraphics( Data_RotateIndex, VGA_XOR_MODE ) ;
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fastFillRMW( SCREENADDRESS( pWin, x0, y0 ),
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BYTES_PER_LINE(pWin),
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ROW_OFFSET( lx ), ly ) ;
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SetVideoGraphics( Set_ResetIndex, color & VGA_ALLPLANES ) ;
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SetVideoGraphics( Data_RotateIndex, data_rotate_value ) ;
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/* Un-Set XOR */
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/* Point At The Bit Mask Reg */
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}
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(* ( ( read_write_modify == FALSE ) ? fastFill : fastFillRMW ) )
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( SCREENADDRESS( pWin, x0, y0 ), BYTES_PER_LINE(pWin),
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ROW_OFFSET( lx ), ly ) ;
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}
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/* Do Right Edge */
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if ((tmp = BIT_OFFSET(lx))) { /* x0 Now Is Byte Aligned */
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/* Set The Bit Mask */
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SetVideoGraphics( Bit_MaskIndex,
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(tmp2 = SCRLEFT8( 0xFF, ( 8 - tmp ) ) ) ) ;
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if ( invert_existing_data == TRUE ) {
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SetVideoGraphics( Set_ResetIndex, VGA_ALLPLANES ) ;
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SetVideoGraphics( Data_RotateIndex, VGA_XOR_MODE ) ;
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dst = SCREENADDRESS( pWin, ( x0 + lx ), y0 );
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for ( tmp = ly;
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tmp-- ; ) {
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tmp3 = *( (VgaMemoryPtr) dst ) ;
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(void)tmp3;
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*( (VgaMemoryPtr) dst ) = tmp2 ;
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dst += BYTES_PER_LINE(pWin);
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}
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SetVideoGraphics( Set_ResetIndex, color & VGA_ALLPLANES ) ;
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SetVideoGraphics( Data_RotateIndex, data_rotate_value ) ;
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/* Un-Set XOR */
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}
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dst = SCREENADDRESS( pWin, ( x0 + lx ), y0 );
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for ( tmp = ly;
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tmp-- ; ) {
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tmp3 = *( (VgaMemoryPtr) dst ) ;
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(void)tmp3;
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*( (VgaMemoryPtr) dst ) = tmp2 ;
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dst += BYTES_PER_LINE(pWin) ;
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}
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}
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/* Disable Set/Reset Register */
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SetVideoGraphics( Enb_Set_ResetIndex, 0 ) ;
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return ;
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}
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#else /* for PC98 EGC */
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static void WordfastFill( destination, bytes_per_line, wordwidth, height )
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register volatile unsigned char *destination ;
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register const unsigned int bytes_per_line ;
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register const unsigned int wordwidth ; /* MUST BE > 0 !! */
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register unsigned int height ; /* MUST BE > 0 !! */
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{
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int stop_count = wordwidth ;
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register int row_jump = bytes_per_line - wordwidth*2 ;
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#if !defined(OLDHC) && defined(BSDrt) && !defined(__i386__) && 0
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register const int notZero = ~0x0 ;
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#else
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#define notZero ( ~0 )
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#endif
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#define SINGLE_STORE \
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( *( (unsigned short *) destination++ ) = notZero ); \
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destination++; stop_count--;
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/* TOP OF FIRST LOOP */
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BranchPoint:
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switch ( wordwidth & 0xF ) { /* Jump into loop at mod 16 remainder */
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LoopTop :
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case 0x0 : SINGLE_STORE ;
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case 0xF : SINGLE_STORE ;
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case 0xE : SINGLE_STORE ;
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case 0xD : SINGLE_STORE ;
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case 0xC : SINGLE_STORE ;
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case 0xB : SINGLE_STORE ;
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case 0xA : SINGLE_STORE ;
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case 0x9 : SINGLE_STORE ;
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case 0x8 : SINGLE_STORE ;
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case 0x7 : SINGLE_STORE ;
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case 0x6 : SINGLE_STORE ;
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case 0x5 : SINGLE_STORE ;
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case 0x4 : SINGLE_STORE ;
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case 0x3 : SINGLE_STORE ;
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case 0x2 : SINGLE_STORE ;
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case 0x1 : SINGLE_STORE ;
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/* FIRST LOOP */
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if ( stop_count )
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goto LoopTop ;
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/* SECOND LOOP */
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if ( --height ) {
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destination += row_jump ;
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stop_count = wordwidth ;
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goto BranchPoint ;
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}
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else
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return ;
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#undef SINGLE_STORE
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}
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/*NOTREACHED*/
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}
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void xf4bppFillSolid( pWin, color, alu, planes, x0, y0, lx, ly )
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WindowPtr pWin; /* GJA */
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unsigned long int color ;
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const int alu ;
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unsigned long int planes ;
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register int x0 ;
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register const int y0 ;
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register int lx ;
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register const int ly ; /* MUST BE > 0 !! */
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{
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register volatile unsigned char *dst ;
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register tmp ;
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register tmp2 ;
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register unsigned short tmp3 ;
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unsigned short ROP_value;
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unsigned int data_rotate_value = VGA_COPY_MODE ;
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unsigned int read_write_modify = FALSE ;
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unsigned int invert_existing_data = FALSE ;
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{ /* Start GJA */
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if ( !xf86Screens[((DrawablePtr)pWin)->pScreen->myNum]->vtSema ) {
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xf4bppOffFillSolid( pWin, color, alu, planes, x0, y0, lx, ly );
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return;
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}
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} /* End GJA */
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if ( ( lx == 0 ) || ( ly == 0 ) )
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return;
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switch ( alu ) {
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case GXclear: /* 0x0 Zero 0 */
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color = 0 ;
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break ;
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case GXnor: /* 0x8 NOT src AND NOT dst */
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invert_existing_data = TRUE ;
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case GXandInverted: /* 0x4 NOT src AND dst */
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color = ~color ;
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case GXand: /* 0x1 src AND dst */
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data_rotate_value = VGA_AND_MODE ;
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read_write_modify = TRUE ;
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case GXcopy: /* 0x3 src */
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break ;
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case GXnoop: /* 0x5 dst */
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return ;
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case GXequiv: /* 0x9 NOT src XOR dst */
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color = ~color ;
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case GXxor: /* 0x6 src XOR dst */
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data_rotate_value = VGA_XOR_MODE ;
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read_write_modify = TRUE ;
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planes &= color ;
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break ;
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case GXandReverse: /* 0x2 src AND NOT dst */
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invert_existing_data = TRUE ;
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data_rotate_value = VGA_AND_MODE ;
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read_write_modify = TRUE ;
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break ;
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case GXorReverse: /* 0xb src OR NOT dst */
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invert_existing_data = TRUE ;
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data_rotate_value = VGA_OR_MODE ;
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read_write_modify = TRUE ;
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break ;
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case GXnand: /* 0xe NOT src OR NOT dst */
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invert_existing_data = TRUE ;
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case GXorInverted: /* 0xd NOT src OR dst */
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color = ~color ;
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case GXor: /* 0x7 src OR dst */
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data_rotate_value = VGA_OR_MODE ;
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read_write_modify = TRUE ;
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break ;
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case GXcopyInverted: /* 0xc NOT src */
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color = ~color ;
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break ;
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case GXinvert: /* 0xa NOT dst */
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data_rotate_value = VGA_XOR_MODE ;
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read_write_modify = TRUE ;
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case GXset: /* 0xf 1 */
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color = VGA_ALLPLANES ;
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default:
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break ;
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}
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if ( !( planes &= VGA_ALLPLANES ) )
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return ;
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/* Set Access Planes */
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outw(EGC_PLANE, ~planes);
|
|
switch(data_rotate_value) {
|
|
/* EGC MODE.. Cmp Read: Flase, WriteSource=ROP, ReadSource=CPU */
|
|
case VGA_AND_MODE:
|
|
if (invert_existing_data)
|
|
ROP_value = EGC_AND_INV_MODE;
|
|
else
|
|
ROP_value = EGC_AND_MODE;
|
|
break;
|
|
case VGA_OR_MODE:
|
|
if (invert_existing_data)
|
|
ROP_value = EGC_OR_INV_MODE;
|
|
else
|
|
ROP_value = EGC_OR_MODE;
|
|
break;
|
|
case VGA_XOR_MODE:
|
|
if (invert_existing_data)
|
|
ROP_value = EGC_XOR_INV_MODE;
|
|
else
|
|
ROP_value = EGC_XOR_MODE;
|
|
break;
|
|
case VGA_COPY_MODE:
|
|
default:
|
|
ROP_value = EGC_COPY_MODE;
|
|
break;
|
|
}
|
|
outw(EGC_MODE, ROP_value);
|
|
outw(EGC_FGC, color & VGA_ALLPLANES);
|
|
/* Do Left Edge */
|
|
if ( tmp = x0 & 0x0f ) {
|
|
dst = (unsigned char *)((int)(SCREENADDRESS(pWin,x0,y0)) & ~0x01);
|
|
tmp3 = (unsigned)0xffff >>tmp;
|
|
/* Catch The Cases Where The Entire Region Is Within One Word */
|
|
if ( ( lx -= 16 - tmp ) < 0 ) {
|
|
tmp3 &= (unsigned)0xffff << -lx;
|
|
lx = 0 ;
|
|
}
|
|
tmp3 = (unsigned short)(tmp3 >> 8 | tmp3 << 8);
|
|
for ( tmp = ly;
|
|
tmp-- ; ) {
|
|
*((unsigned short *) dst ) = tmp3 ;
|
|
dst += BYTES_PER_LINE(pWin);
|
|
}
|
|
if ( !lx ) { /* All Handled In This Word */
|
|
return ;
|
|
}
|
|
x0 = ( x0 + 0x0f ) & ~0x0f ;
|
|
}
|
|
|
|
/* Fill The Center Of The Box */
|
|
if (lx >> 4) {
|
|
WordfastFill( SCREENADDRESS( pWin, x0, y0 ), BYTES_PER_LINE(pWin),
|
|
(lx >> 4), ly ) ;
|
|
}
|
|
|
|
/* Do Right Edge */
|
|
if ( tmp = lx & 0x0f ) { /* x0 Now Is Word Aligned */
|
|
/* Set The Bit Mask */
|
|
tmp3 = (unsigned)0xffff << ( 16 - tmp );
|
|
dst = (unsigned char*)((int)SCREENADDRESS(pWin,(x0+lx),y0) & ~0x01);
|
|
tmp3 = (unsigned short)(tmp3 >> 8 | tmp3 << 8);
|
|
for ( tmp = ly;
|
|
tmp-- ; ) {
|
|
*( (unsigned short *) dst ) = tmp3 ;
|
|
dst += BYTES_PER_LINE(pWin);
|
|
}
|
|
}
|
|
|
|
return ;
|
|
}
|
|
#endif
|