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xserver/hw/xfree86/xf4bpp/vgaSolid.c

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/* $XFree86: xc/programs/Xserver/hw/xfree86/xf4bpp/vgaSolid.c,v 1.6 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.
*
*/
/* $XConsortium: vgaSolid.c /main/5 1996/02/21 17:59:06 kaleb $ */
#include "xf4bpp.h"
#include "OScompiler.h"
#include "vgaReg.h"
#include "vgaVideo.h"
#include "xf86str.h" /* for pScrn->vtSema */
extern ScrnInfoPtr *xf86Screens;
#undef TRUE
#undef FALSE
#define TRUE 1
#define FALSE 0
#ifndef PC98_EGC
#ifdef USE_ASM
extern void fastFill();
extern void fastFillRMW();
#else
static void fastFill
(
register volatile unsigned char *destination,
register const unsigned int bytes_per_line,
register const unsigned int bytewidth, /* MUST BE > 0 !! */
register unsigned int height /* MUST BE > 0 !! */
)
{
int stop_count = bytewidth ;
register int row_jump = bytes_per_line - bytewidth ;
#if !defined(OLDHC) && defined(BSDrt) && !defined(i386)
register const unsigned int notZero = ((unsigned char)(~0x0));
#else
#define notZero ((unsigned char)(~0))
#endif
#define SINGLE_STORE \
( *( (VgaMemoryPtr) destination ) = notZero ); \
destination++; stop_count--;
/* TOP OF FIRST LOOP */
BranchPoint:
switch ( bytewidth & 0xF ) { /* Jump into loop at mod 16 remainder */
LoopTop :
case 0x0 : SINGLE_STORE ;
case 0xF : SINGLE_STORE ;
case 0xE : SINGLE_STORE ;
case 0xD : SINGLE_STORE ;
case 0xC : SINGLE_STORE ;
case 0xB : SINGLE_STORE ;
case 0xA : SINGLE_STORE ;
case 0x9 : SINGLE_STORE ;
case 0x8 : SINGLE_STORE ;
case 0x7 : SINGLE_STORE ;
case 0x6 : SINGLE_STORE ;
case 0x5 : SINGLE_STORE ;
case 0x4 : SINGLE_STORE ;
case 0x3 : SINGLE_STORE ;
case 0x2 : SINGLE_STORE ;
case 0x1 : SINGLE_STORE ;
/* FIRST LOOP */
if ( stop_count )
goto LoopTop ;
/* SECOND LOOP */
if ( --height ) {
destination += row_jump ;
stop_count = bytewidth ;
goto BranchPoint ;
}
else
return ;
#undef SINGLE_STORE
}
/*NOTREACHED*/
}
/* For Read-Modify-Write Case */
static void fastFillRMW
(
register volatile unsigned char *destination,
register const unsigned int bytes_per_line,
register const unsigned int bytewidth, /* MUST BE > 0 !! */
register unsigned int height /* MUST BE > 0 !! */
)
{
int stop_count = bytewidth ;
register int row_jump = bytes_per_line - bytewidth ;
#if !defined(OLDHC) && defined(BSDrt) && !defined(i386)
register const unsigned int notZero = ((unsigned char)(~0x0));
#endif
register int tmp ;
#define SINGLE_STORE \
tmp = *( (VgaMemoryPtr) destination ) ; (void)tmp; \
( *( (VgaMemoryPtr) destination ) = notZero ) ; \
destination++; stop_count-- ;
/* TOP OF FIRST LOOP */
BranchPoint:
switch ( bytewidth & 0xF ) { /* Jump into loop at mod 16 remainder */
LoopTop :
case 0x0 : SINGLE_STORE ;
case 0xF : SINGLE_STORE ;
case 0xE : SINGLE_STORE ;
case 0xD : SINGLE_STORE ;
case 0xC : SINGLE_STORE ;
case 0xB : SINGLE_STORE ;
case 0xA : SINGLE_STORE ;
case 0x9 : SINGLE_STORE ;
case 0x8 : SINGLE_STORE ;
case 0x7 : SINGLE_STORE ;
case 0x6 : SINGLE_STORE ;
case 0x5 : SINGLE_STORE ;
case 0x4 : SINGLE_STORE ;
case 0x3 : SINGLE_STORE ;
case 0x2 : SINGLE_STORE ;
case 0x1 : SINGLE_STORE ;
/* FIRST LOOP */
if ( stop_count )
goto LoopTop ;
/* SECOND LOOP */
if ( --height ) {
destination += row_jump ;
stop_count = bytewidth ;
goto BranchPoint ;
}
else
return ;
}
#undef SINGLE_STORE
/*NOTREACHED*/
}
#endif
void xf4bppFillSolid( pWin, color, alu, planes, x0, y0, lx, ly )
WindowPtr pWin; /* GJA */
unsigned long int color ;
const int alu ;
unsigned long int planes ;
register int x0 ;
register const int y0 ;
register int lx ;
register const int ly ; /* MUST BE > 0 !! */
{
IOADDRESS REGBASE;
register volatile unsigned char *dst ;
register int tmp ;
register int tmp2 ;
register int tmp3 ;
unsigned int data_rotate_value = VGA_COPY_MODE ;
unsigned int read_write_modify = FALSE ;
unsigned int invert_existing_data = FALSE ;
{ /* Start GJA */
if ( !xf86Screens[((DrawablePtr)pWin)->pScreen->myNum]->vtSema ) {
xf4bppOffFillSolid( pWin, color, alu, planes, x0, y0, lx, ly );
return;
}
} /* End GJA */
if ( ( lx == 0 ) || ( ly == 0 ) )
return;
switch ( alu ) {
case GXclear: /* 0x0 Zero 0 */
color = 0 ;
break ;
case GXnor: /* 0x8 NOT src AND NOT dst */
invert_existing_data = TRUE ;
case GXandInverted: /* 0x4 NOT src AND dst */
color = ~color ;
case GXand: /* 0x1 src AND dst */
data_rotate_value = VGA_AND_MODE ;
read_write_modify = TRUE ;
case GXcopy: /* 0x3 src */
break ;
case GXnoop: /* 0x5 dst */
return ;
case GXequiv: /* 0x9 NOT src XOR dst */
color = ~color ;
case GXxor: /* 0x6 src XOR dst */
data_rotate_value = VGA_XOR_MODE ;
read_write_modify = TRUE ;
planes &= color ;
break ;
case GXandReverse: /* 0x2 src AND NOT dst */
invert_existing_data = TRUE ;
data_rotate_value = VGA_AND_MODE ;
read_write_modify = TRUE ;
break ;
case GXorReverse: /* 0xb src OR NOT dst */
invert_existing_data = TRUE ;
data_rotate_value = VGA_OR_MODE ;
read_write_modify = TRUE ;
break ;
case GXnand: /* 0xe NOT src OR NOT dst */
invert_existing_data = TRUE ;
case GXorInverted: /* 0xd NOT src OR dst */
color = ~color ;
case GXor: /* 0x7 src OR dst */
data_rotate_value = VGA_OR_MODE ;
read_write_modify = TRUE ;
break ;
case GXcopyInverted: /* 0xc NOT src */
color = ~color ;
break ;
case GXinvert: /* 0xa NOT dst */
data_rotate_value = VGA_XOR_MODE ;
read_write_modify = TRUE ;
case GXset: /* 0xf 1 */
color = VGA_ALLPLANES ;
default:
break ;
}
if ( !( planes &= VGA_ALLPLANES ) )
return ;
REGBASE =
xf86Screens[((DrawablePtr)pWin)->pScreen->myNum]->domainIOBase + 0x300;
/*
* Set The Plane-Enable
*/
SetVideoSequencer( Mask_MapIndex, planes ) ;
SetVideoGraphics( Enb_Set_ResetIndex, planes ) ;
/*
* Put Display Into SET/RESET Write Mode
*/
SetVideoGraphics( Graphics_ModeIndex, VGA_WRITE_MODE_3 ) ;
/*
* Set The Color in The Set/Reset Register
*/
SetVideoGraphics( Set_ResetIndex, color & VGA_ALLPLANES ) ;
/*
* Set The Function-Select In The Data Rotate Register
*/
SetVideoGraphics( Data_RotateIndex, data_rotate_value ) ;
/* Do Left Edge */
if ((tmp = x0 & 07)) {
tmp2 = SCRRIGHT8( ( (unsigned) 0xFF ), tmp ) ;
/* Catch The Cases Where The Entire Region Is Within One Byte */
if ( ( lx -= 8 - tmp ) < 0 ) {
tmp2 &= SCRLEFT8( 0xFF, -lx ) ;
lx = 0 ;
}
/* Set The Bit Mask Reg */
SetVideoGraphics(Bit_MaskIndex, tmp2 ) ;
if ( invert_existing_data == TRUE ) {
SetVideoGraphics( Set_ResetIndex, VGA_ALLPLANES ) ;
SetVideoGraphics( Data_RotateIndex, VGA_XOR_MODE ) ;
dst = SCREENADDRESS( pWin, x0, y0 );
for ( tmp = ly;
tmp-- ; ) {
tmp3 = *( (VgaMemoryPtr) dst ) ;
(void)tmp3;
*( (VgaMemoryPtr) dst ) = tmp2 ;
dst += BYTES_PER_LINE(pWin);
}
SetVideoGraphics( Set_ResetIndex, color & VGA_ALLPLANES ) ;
SetVideoGraphics( Data_RotateIndex, data_rotate_value ) ;
/* Un-Set XOR */
}
dst = SCREENADDRESS( pWin, x0, y0 );
for ( tmp = ly;
tmp-- ; ) {
tmp3 = *( (VgaMemoryPtr) dst ) ;
(void)tmp3;
*( (VgaMemoryPtr) dst ) = tmp2 ;
dst += BYTES_PER_LINE(pWin);
}
if ( !lx ) { /* All Handled In This Byte */
return ;
}
x0 = ( x0 + 8 ) & ~07 ;
}
/* Fill The Center Of The Box */
if ( ROW_OFFSET( lx ) ) {
SetVideoGraphics(Bit_MaskIndex, 0xFF ) ;
if ( invert_existing_data == TRUE ) {
SetVideoGraphics( Set_ResetIndex, VGA_ALLPLANES ) ;
SetVideoGraphics( Data_RotateIndex, VGA_XOR_MODE ) ;
fastFillRMW( SCREENADDRESS( pWin, x0, y0 ),
BYTES_PER_LINE(pWin),
ROW_OFFSET( lx ), ly ) ;
SetVideoGraphics( Set_ResetIndex, color & VGA_ALLPLANES ) ;
SetVideoGraphics( Data_RotateIndex, data_rotate_value ) ;
/* Un-Set XOR */
/* Point At The Bit Mask Reg */
}
(* ( ( read_write_modify == FALSE ) ? fastFill : fastFillRMW ) )
( SCREENADDRESS( pWin, x0, y0 ), BYTES_PER_LINE(pWin),
ROW_OFFSET( lx ), ly ) ;
}
/* Do Right Edge */
if ((tmp = BIT_OFFSET(lx))) { /* x0 Now Is Byte Aligned */
/* Set The Bit Mask */
SetVideoGraphics( Bit_MaskIndex,
(tmp2 = SCRLEFT8( 0xFF, ( 8 - tmp ) ) ) ) ;
if ( invert_existing_data == TRUE ) {
SetVideoGraphics( Set_ResetIndex, VGA_ALLPLANES ) ;
SetVideoGraphics( Data_RotateIndex, VGA_XOR_MODE ) ;
dst = SCREENADDRESS( pWin, ( x0 + lx ), y0 );
for ( tmp = ly;
tmp-- ; ) {
tmp3 = *( (VgaMemoryPtr) dst ) ;
(void)tmp3;
*( (VgaMemoryPtr) dst ) = tmp2 ;
dst += BYTES_PER_LINE(pWin);
}
SetVideoGraphics( Set_ResetIndex, color & VGA_ALLPLANES ) ;
SetVideoGraphics( Data_RotateIndex, data_rotate_value ) ;
/* Un-Set XOR */
}
dst = SCREENADDRESS( pWin, ( x0 + lx ), y0 );
for ( tmp = ly;
tmp-- ; ) {
tmp3 = *( (VgaMemoryPtr) dst ) ;
(void)tmp3;
*( (VgaMemoryPtr) dst ) = tmp2 ;
dst += BYTES_PER_LINE(pWin) ;
}
}
/* Disable Set/Reset Register */
SetVideoGraphics( Enb_Set_ResetIndex, 0 ) ;
return ;
}
#else /* for PC98 EGC */
static void WordfastFill( destination, bytes_per_line, wordwidth, height )
register volatile unsigned char *destination ;
register const unsigned int bytes_per_line ;
register const unsigned int wordwidth ; /* MUST BE > 0 !! */
register unsigned int height ; /* MUST BE > 0 !! */
{
int stop_count = wordwidth ;
register int row_jump = bytes_per_line - wordwidth*2 ;
#if !defined(OLDHC) && defined(BSDrt) && !defined(i386) && 0
register const int notZero = ~0x0 ;
#else
#define notZero ( ~0 )
#endif
#define SINGLE_STORE \
( *( (unsigned short *) destination++ ) = notZero ); \
destination++; stop_count--;
/* TOP OF FIRST LOOP */
BranchPoint:
switch ( wordwidth & 0xF ) { /* Jump into loop at mod 16 remainder */
LoopTop :
case 0x0 : SINGLE_STORE ;
case 0xF : SINGLE_STORE ;
case 0xE : SINGLE_STORE ;
case 0xD : SINGLE_STORE ;
case 0xC : SINGLE_STORE ;
case 0xB : SINGLE_STORE ;
case 0xA : SINGLE_STORE ;
case 0x9 : SINGLE_STORE ;
case 0x8 : SINGLE_STORE ;
case 0x7 : SINGLE_STORE ;
case 0x6 : SINGLE_STORE ;
case 0x5 : SINGLE_STORE ;
case 0x4 : SINGLE_STORE ;
case 0x3 : SINGLE_STORE ;
case 0x2 : SINGLE_STORE ;
case 0x1 : SINGLE_STORE ;
/* FIRST LOOP */
if ( stop_count )
goto LoopTop ;
/* SECOND LOOP */
if ( --height ) {
destination += row_jump ;
stop_count = wordwidth ;
goto BranchPoint ;
}
else
return ;
#undef SINGLE_STORE
}
/*NOTREACHED*/
}
void xf4bppFillSolid( pWin, color, alu, planes, x0, y0, lx, ly )
WindowPtr pWin; /* GJA */
unsigned long int color ;
const int alu ;
unsigned long int planes ;
register int x0 ;
register const int y0 ;
register int lx ;
register const int ly ; /* MUST BE > 0 !! */
{
register volatile unsigned char *dst ;
register tmp ;
register tmp2 ;
register unsigned short tmp3 ;
unsigned short ROP_value;
unsigned int data_rotate_value = VGA_COPY_MODE ;
unsigned int read_write_modify = FALSE ;
unsigned int invert_existing_data = FALSE ;
{ /* Start GJA */
if ( !xf86Screens[((DrawablePtr)pWin)->pScreen->myNum]->vtSema ) {
xf4bppOffFillSolid( pWin, color, alu, planes, x0, y0, lx, ly );
return;
}
} /* End GJA */
if ( ( lx == 0 ) || ( ly == 0 ) )
return;
switch ( alu ) {
case GXclear: /* 0x0 Zero 0 */
color = 0 ;
break ;
case GXnor: /* 0x8 NOT src AND NOT dst */
invert_existing_data = TRUE ;
case GXandInverted: /* 0x4 NOT src AND dst */
color = ~color ;
case GXand: /* 0x1 src AND dst */
data_rotate_value = VGA_AND_MODE ;
read_write_modify = TRUE ;
case GXcopy: /* 0x3 src */
break ;
case GXnoop: /* 0x5 dst */
return ;
case GXequiv: /* 0x9 NOT src XOR dst */
color = ~color ;
case GXxor: /* 0x6 src XOR dst */
data_rotate_value = VGA_XOR_MODE ;
read_write_modify = TRUE ;
planes &= color ;
break ;
case GXandReverse: /* 0x2 src AND NOT dst */
invert_existing_data = TRUE ;
data_rotate_value = VGA_AND_MODE ;
read_write_modify = TRUE ;
break ;
case GXorReverse: /* 0xb src OR NOT dst */
invert_existing_data = TRUE ;
data_rotate_value = VGA_OR_MODE ;
read_write_modify = TRUE ;
break ;
case GXnand: /* 0xe NOT src OR NOT dst */
invert_existing_data = TRUE ;
case GXorInverted: /* 0xd NOT src OR dst */
color = ~color ;
case GXor: /* 0x7 src OR dst */
data_rotate_value = VGA_OR_MODE ;
read_write_modify = TRUE ;
break ;
case GXcopyInverted: /* 0xc NOT src */
color = ~color ;
break ;
case GXinvert: /* 0xa NOT dst */
data_rotate_value = VGA_XOR_MODE ;
read_write_modify = TRUE ;
case GXset: /* 0xf 1 */
color = VGA_ALLPLANES ;
default:
break ;
}
if ( !( planes &= VGA_ALLPLANES ) )
return ;
/* Set Access Planes */
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
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