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Diffstat (limited to 'xorg-server/hw/xfree86/xf4bpp/vgaImages.c')
-rw-r--r--xorg-server/hw/xfree86/xf4bpp/vgaImages.c460
1 files changed, 460 insertions, 0 deletions
diff --git a/xorg-server/hw/xfree86/xf4bpp/vgaImages.c b/xorg-server/hw/xfree86/xf4bpp/vgaImages.c
new file mode 100644
index 000000000..bea2d0a17
--- /dev/null
+++ b/xorg-server/hw/xfree86/xf4bpp/vgaImages.c
@@ -0,0 +1,460 @@
+/*
+ * 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.
+ *
+*/
+
+#ifdef HAVE_XORG_CONFIG_H
+#include <xorg-config.h>
+#endif
+
+#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
+
+void
+xf4bppDrawColorImage( pWin, x, y, w, h, data, RowIncrement, alu, planes )
+WindowPtr pWin; /* GJA */
+int x, y ;
+register int w, h ;
+unsigned char *data ;
+register int RowIncrement ;
+const int alu ;
+const unsigned long int planes ;
+{
+IOADDRESS REGBASE;
+register unsigned long int tmp ;
+register const unsigned char *src ;
+register volatile unsigned char *dst ;
+register int Pixel_Count ;
+register unsigned int currMask ;
+register unsigned int InitialMask ;
+register volatile unsigned char *StartByte ;
+unsigned int invert_source_data = FALSE ;
+#ifdef PC98_EGC /* new EGC test */
+register unsigned char tmp1;
+#endif
+
+{ /* Start GJA */
+ if ( !xf86Screens[((DrawablePtr)pWin)->pScreen->myNum]->vtSema ) {
+ xf4bppOffDrawColorImage( pWin, x, y, w, h, data, RowIncrement, alu, planes );
+ return;
+ }
+} /* End GJA */
+
+{
+ unsigned int invert_existing_data = FALSE ;
+ unsigned int data_rotate_value = VGA_COPY_MODE ;
+#ifdef PC98_EGC
+ unsigned short ROP_value;
+#endif
+
+ REGBASE = 0x300 +
+ xf86Screens[((DrawablePtr)pWin)->pScreen->myNum]->domainIOBase;
+
+ switch ( alu ) {
+ case GXclear: /* 0x0 Zero 0 */
+ case GXinvert: /* 0xa NOT dst */
+ case GXset: /* 0xf 1 */
+ xf4bppFillSolid( pWin, VGA_ALLPLANES, alu, planes, x, y, w, h ) ;
+ case GXnoop: /* 0x5 dst */
+ return ;
+ case GXnor: /* 0x8 NOT src AND NOT dst */
+ invert_existing_data = TRUE ;
+ case GXandInverted: /* 0x4 NOT src AND dst */
+ invert_source_data = TRUE ;
+ case GXand: /* 0x1 src AND dst */
+ data_rotate_value = VGA_AND_MODE ;
+ break ;
+ case GXequiv: /* 0x9 NOT src XOR dst */
+ invert_source_data = TRUE ;
+ case GXxor: /* 0x6 src XOR dst */
+ data_rotate_value = VGA_XOR_MODE ;
+ break ;
+ case GXandReverse: /* 0x2 src AND NOT dst */
+ invert_existing_data = TRUE ;
+ data_rotate_value = VGA_AND_MODE ;
+ break ;
+ case GXnand: /* 0xe NOT src OR NOT dst */
+ invert_source_data = TRUE ;
+ case GXorReverse: /* 0xb src OR NOT dst */
+ invert_existing_data = TRUE ;
+ /* GJA -- moved this here */
+ data_rotate_value = VGA_OR_MODE ;
+ break ;
+ case GXorInverted: /* 0xd NOT src OR dst */
+ invert_source_data = TRUE ;
+ case GXor: /* 0x7 src OR dst */
+ data_rotate_value = VGA_OR_MODE ;
+ break ;
+ case GXcopyInverted: /* 0xc NOT src */
+ invert_source_data = TRUE ;
+ case GXcopy: /* 0x3 src */
+ default:
+ break ;
+ }
+
+#ifdef PC98_EGC
+ /* Setup EGC Registers */
+ 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_PLANE, ~(planes & VGA_ALLPLANES));
+ outw(EGC_MODE, ROP_value);
+ outw(EGC_FGC, 0x0000);
+ tmp1 = 0;
+#else
+ if ( invert_existing_data )
+ xf4bppFillSolid( pWin, VGA_ALLPLANES, GXinvert, planes, x, y, w, h ) ;
+ /* Setup VGA Registers */
+ SetVideoSequencer( Mask_MapIndex, planes & VGA_ALLPLANES ) ;
+ /* Set Raster Op */
+ SetVideoGraphics( Data_RotateIndex, data_rotate_value ) ;
+ SetVideoGraphics( Graphics_ModeIndex, VGA_WRITE_MODE_2 ) ;
+#endif
+}
+
+StartByte = SCREENADDRESS(pWin, x, y);
+InitialMask = SCRRIGHT8( LeftmostBit, BIT_OFFSET( x ) ) ;
+if ( invert_source_data )
+#ifdef PC98_EGC
+#if 0 /* New EGC version */
+ egc_image_invert ( StartByte, data, InitialMask, w, h,
+ RowIncrement ) ;
+#else /* new EGC c version */
+ for ( ;
+ h-- ;
+ data += RowIncrement, StartByte += BYTES_PER_LINE(pWin) ) {
+ dst = StartByte;
+ for ( src = data,
+ Pixel_Count = w, currMask = InitialMask ;
+ Pixel_Count-- ;
+ src++ ) {
+ if (tmp1 != (~*src & VGA_ALLPLANES)) {
+ tmp1 = ~*src & VGA_ALLPLANES;
+ /* set FGC */
+ outw(EGC_FGC, ~*src & VGA_ALLPLANES);
+ }
+ *((VgaMemoryPtr) dst) = currMask;
+ if ( currMask & RightmostBit ) {
+ currMask = LeftmostBit ;
+ dst++;
+ }
+ else
+ currMask = SCRRIGHT8( currMask, 1 ) ;
+ }
+ }
+#endif /* new EGC */
+#else /* original */
+ for ( ;
+ h-- ;
+ data += RowIncrement, StartByte += BYTES_PER_LINE(pWin) ) {
+ dst = StartByte;
+ for ( src = data,
+ Pixel_Count = w, currMask = InitialMask ;
+ Pixel_Count-- ;
+ src++ ) {
+ /* Set The Bit Mask Reg */
+ SetVideoGraphics( Bit_MaskIndex, currMask ) ;
+ /* Read To Load vga Data Latches */
+ tmp = *( (VgaMemoryPtr) dst ) ;
+ (void) tmp;
+ *( (VgaMemoryPtr) dst ) = ~ *src ;
+ if ( currMask & RightmostBit ) {
+ currMask = LeftmostBit ;
+ dst++;
+ }
+ else
+ currMask = SCRRIGHT8( currMask, 1 ) ;
+ }
+ }
+#endif
+else /* invert_source_data == FALSE */
+#ifdef PC98_EGC
+#if 0 /* new EGC version */
+ egc_image ( StartByte, data, InitialMask, w, h,
+ RowIncrement );
+#else /* new EGC c version */
+ for ( ;
+ h-- ;
+ data += RowIncrement, StartByte += BYTES_PER_LINE(pWin) ) {
+ dst = StartByte;
+ for ( src = data,
+ Pixel_Count = w, currMask = InitialMask ;
+ Pixel_Count-- ;
+ src++ ) {
+ if (tmp1 != *src & VGA_ALLPLANES) {
+ tmp1 = *src & VGA_ALLPLANES;
+ outw(EGC_FGC, tmp1); /* set FGC */
+ }
+ *((VgaMemoryPtr) dst) = currMask; /* write with mask */
+ if ( currMask & RightmostBit ) {
+ currMask = LeftmostBit ;
+ dst++;
+ }
+ else
+ currMask = SCRRIGHT8( currMask, 1 ) ;
+ }
+ }
+#endif /* new EGC version */
+#else /* original */
+ for ( ;
+ h-- ;
+ data += RowIncrement, StartByte += BYTES_PER_LINE(pWin) ) {
+ dst = StartByte;
+ for ( src = data,
+ Pixel_Count = w, currMask = InitialMask ;
+ Pixel_Count-- ;
+ src++ ) {
+ /* Set The Bit Mask Reg */
+ SetVideoGraphics( Bit_MaskIndex, currMask ) ; /* GJA */
+ /* Read To Load vga Data Latches */
+ tmp = *( (VgaMemoryPtr) dst ) ;
+ (void) tmp;
+ *( (VgaMemoryPtr) dst ) = *src ;
+ if ( currMask & RightmostBit ) {
+ currMask = LeftmostBit ;
+ dst++;
+ }
+ else
+ currMask = SCRRIGHT8( currMask, 1 ) ;
+ }
+ }
+#endif /* original */
+
+return ;
+}
+
+#ifndef PC98_EGC
+static unsigned long int
+read8Z
+(
+ IOADDRESS REGBASE,
+ register volatile unsigned char *screen_ptr
+)
+{
+register unsigned long int i ;
+register unsigned long int j ;
+
+/* Read One Byte At A Time to get
+ * i == [ Plane 3 ] [ Plane 2 ] [ Plane 1 ] [ Plane 0 ]
+ * into a single register
+ */
+SetVideoGraphicsData( 3 ) ;
+i = *( (VgaMemoryPtr) screen_ptr ) << 8 ;
+SetVideoGraphicsData( 2 ) ;
+i |= *( (VgaMemoryPtr) screen_ptr ) ;
+i <<= 8 ;
+SetVideoGraphicsData( 1 ) ;
+i |= *( (VgaMemoryPtr) screen_ptr ) ;
+i <<= 8 ;
+SetVideoGraphicsData( 0 ) ;
+i |= *( (VgaMemoryPtr) screen_ptr ) ;
+
+/* Push Bits To Get
+ * j == [Pixel 7][Pixel 6][Pixel 5][Pixel 4][Pixel 3][Pixel 2][Pixel 1][Pixel 0]
+ * into one register
+ */
+
+j = ( i & 0x1 ) << 4 ;
+j |= ( i >>= 1 ) & 0x1 ;
+j <<= 4 ;
+j |= ( i >>= 1 ) & 0x1 ;
+j <<= 4 ;
+j |= ( i >>= 1 ) & 0x1 ;
+j <<= 4 ;
+j |= ( i >>= 1 ) & 0x1 ;
+j <<= 4 ;
+j |= ( i >>= 1 ) & 0x1 ;
+j <<= 4 ;
+j |= ( i >>= 1 ) & 0x1 ;
+j <<= 4 ;
+j |= ( i >>= 1 ) & 0x1 ;
+
+j |= ( i & 0x2 ) << 28 ;
+j |= ( ( i >>= 1 ) & 0x2 ) << 24 ;
+j |= ( ( i >>= 1 ) & 0x2 ) << 20 ;
+j |= ( ( i >>= 1 ) & 0x2 ) << 16 ;
+j |= ( ( i >>= 1 ) & 0x2 ) << 12 ;
+j |= ( ( i >>= 1 ) & 0x2 ) << 8 ;
+j |= ( ( i >>= 1 ) & 0x2 ) << 4 ;
+j |= ( i >>= 1 ) & 0x2 ;
+
+j |= ( i & 0x4 ) << 28 ;
+j |= ( ( i >>= 1 ) & 0x4 ) << 24 ;
+j |= ( ( i >>= 1 ) & 0x4 ) << 20 ;
+j |= ( ( i >>= 1 ) & 0x4 ) << 16 ;
+j |= ( ( i >>= 1 ) & 0x4 ) << 12 ;
+j |= ( ( i >>= 1 ) & 0x4 ) << 8 ;
+j |= ( ( i >>= 1 ) & 0x4 ) << 4 ;
+j |= ( i >>= 1 ) & 0x4 ;
+
+j |= ( i & 0x8 ) << 28 ;
+j |= ( ( i >>= 1 ) & 0x8 ) << 24 ;
+j |= ( ( i >>= 1 ) & 0x8 ) << 20 ;
+j |= ( ( i >>= 1 ) & 0x8 ) << 16 ;
+j |= ( ( i >>= 1 ) & 0x8 ) << 12 ;
+j |= ( ( i >>= 1 ) & 0x8 ) << 8 ;
+j |= ( ( i >>= 1 ) & 0x8 ) << 4 ;
+j |= ( i >>= 1 ) & 0x8 ;
+
+return j ;
+}
+#endif /* not PC98_EGC */
+
+void
+xf4bppReadColorImage( pWin, x, y, lx, ly, data, RowIncrement )
+WindowPtr pWin; /* GJA */
+int x, y ;
+int lx, ly ;
+register unsigned char *data ;
+int RowIncrement ;
+{
+IOADDRESS REGBASE;
+register unsigned long int tmp ;
+register volatile unsigned char *src ;
+volatile unsigned char *masterSrc ;
+int savCenterWidth ;
+int dx ;
+int skip ;
+int center_width ;
+int ignore ;
+int pad ;
+unsigned char tmpc;
+
+{ /* Start GJA */
+ if ( !xf86Screens[((DrawablePtr)pWin)->pScreen->myNum]->vtSema ) {
+ xf4bppOffReadColorImage( pWin, x, y, lx, ly, data, RowIncrement );
+ return;
+ }
+} /* End GJA */
+
+if ( ( lx <= 0 ) || ( ly <= 0 ) )
+ return ;
+
+ REGBASE = 0x300 +
+ xf86Screens[((DrawablePtr)pWin)->pScreen->myNum]->domainIOBase;
+
+/* Setup VGA Registers */
+#ifndef PC98_EGC
+SetVideoGraphicsIndex( Graphics_ModeIndex ) ;
+tmpc = inb( GraphicsDataRegister );
+SetVideoGraphicsData( tmpc & ~0x8 ) ; /* Clear the bit */
+SetVideoGraphicsIndex( Read_Map_SelectIndex ) ;
+#else
+outw(EGC_MODE, 0x0800);
+#endif
+
+skip = BIT_OFFSET( x ) ;
+pad = RowIncrement - lx ;
+ignore = BIT_OFFSET( x + lx ) ;
+masterSrc = SCREENADDRESS( pWin, x, y ) ;
+center_width = ROW_OFFSET( x + lx ) - ROW_OFFSET( ( x + 0x7 ) & ~0x7 ) ;
+
+#define SINGLE_STEP *data++ = tmp & VGA_ALLPLANES ; tmp >>= 4
+
+
+if ( center_width < 0 ) {
+ src = masterSrc;
+ for ( ; ly-- ; ) {
+ tmp = read8Z( REGBASE, src ) >> ( skip << 2 ) ;
+ for ( dx = lx + 1 ; --dx ; ) {
+ SINGLE_STEP ;
+ }
+ data += pad ;
+ src += BYTES_PER_LINE(pWin);
+ }
+} else
+ for ( savCenterWidth = center_width ;
+ ly-- ;
+ center_width = savCenterWidth,
+ masterSrc += BYTES_PER_LINE(pWin) ) {
+ src = masterSrc ;
+ tmp = read8Z( REGBASE, src ) ; src++;
+ if ((dx = skip))
+ tmp >>= ( dx << 2 ) ;
+ else
+ if ( lx < 8 ) { /* kludge -- GJA */
+ --center_width ; /* kludge -- GJA */
+ dx = 8 - lx ; /* kludge -- GJA */
+ } else /* kludge -- GJA */
+ --center_width ;
+ BranchPoint:
+ switch ( dx ) {
+ LoopTop:
+ case 0x0: SINGLE_STEP ;
+ case 0x1: SINGLE_STEP ;
+ case 0x2: SINGLE_STEP ;
+ case 0x3: SINGLE_STEP ;
+ case 0x4: SINGLE_STEP ;
+ case 0x5: SINGLE_STEP ;
+ case 0x6: SINGLE_STEP ;
+ case 0x7: *data++ = tmp & VGA_ALLPLANES ;
+
+ /* Fall Through To End Of Inner Loop */
+ if ( center_width > 0 ) {
+ tmp = read8Z( REGBASE, src ) ; src++;
+ center_width-- ;
+ goto LoopTop ;
+ }
+ else if ( ( center_width == 0 )
+ && ( dx = ( - ignore ) & 07 ) ) {
+ tmp = read8Z( REGBASE, src ) ; src++;
+ center_width-- ;
+ goto BranchPoint ; /* Do Mod 8 edge */
+ }
+ else /* End of this line */
+ data += pad ;
+ }
+ }
+
+return ;
+}
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