aboutsummaryrefslogtreecommitdiff
path: root/xorg-server/hw/xfree86/xf4bpp/vgaBitBlt.c
diff options
context:
space:
mode:
Diffstat (limited to 'xorg-server/hw/xfree86/xf4bpp/vgaBitBlt.c')
-rw-r--r--xorg-server/hw/xfree86/xf4bpp/vgaBitBlt.c749
1 files changed, 0 insertions, 749 deletions
diff --git a/xorg-server/hw/xfree86/xf4bpp/vgaBitBlt.c b/xorg-server/hw/xfree86/xf4bpp/vgaBitBlt.c
deleted file mode 100644
index 2e89f43b7..000000000
--- a/xorg-server/hw/xfree86/xf4bpp/vgaBitBlt.c
+++ /dev/null
@@ -1,749 +0,0 @@
-/* GJA -- span move routines */
-
-#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;
-
-#ifndef PC98_EGC /* not PC98_EGC */
-/* NOTE: It seems that there is no way to program the VGA to copy just
- * a part of a byte in the smarter modes. Therefore we copy the boundaries
- * plane by plane.
- */
-#define WORDSZ 8
- /* The fast blit code requires WORDSZ = 8 for its read-modify write cycle.
- * Therefore, we do not fully implement the other options.
- */
-#define HIGHPLANEMASK 0x08
-#define HIGHPLANEINDEX 3
-
-/* Of course, we want the following anyway:
- * (Yes, they're identical now.)
- */
-#define SMEM(x,y) ( VIDBASE(pWin) + (y) * BYTES_PER_LINE(pWin) + (x) )
-#define DMEM(x,y) ( VIDBASE(pWin) + (y) * BYTES_PER_LINE(pWin) + (x) )
-
-#define WORD8 unsigned char
-#define LW8 BYTES_PER_LINE(pWin) /* Line width */
-#define WSHIFT8 0x3
-#define WMASK8 0x07
-/* NOTE: lmask[8] matters. It must be different from lmask[0] */
-static unsigned char lmasktab[] = {
- 0x00, 0x80, 0xC0, 0xE0, 0xF0, 0xF8, 0xFC, 0xFE, 0xFF
-} ;
-static unsigned char rmasktab[] = {
- 0xFF, 0x7F, 0x3F, 0x1F, 0x0F, 0x07, 0x03, 0x01, 0x00
-} ;
-
-#define LMASK8(n) lmasktab[n]
-#define RMASK8(n) rmasktab[n]
-#define SWAPB8(x) (x)
-
-#if (WORDSZ == 8)
-
-#define WORD WORD8
-#define LW LW8
-#define WSHIFT WSHIFT8
-#define WMASK WMASK8
-
-#define LMASK(n) LMASK8(n)
-#define RMASK(n) RMASK8(n)
-#define SWAPB(x) SWAPB8(x)
-
-#endif /* WORDSZ == 8 */
-
-#define DO_ALU(dst,src,mask,alu) {\
- int _ndst, _odst; _odst = dst; \
- switch ( alu ) { \
- case GXclear: \
- _ndst = 0; break; \
- case GXand: \
- _ndst = src & _odst; break; \
- case GXandReverse: \
- _ndst = src & ~ _odst; break; \
- case GXcopy: \
- _ndst = src; break; \
- case GXandInverted: \
- _ndst = ~ src & _odst; break; \
- default: \
- case GXnoop: \
- _ndst = _odst; break; \
- case GXxor: \
- _ndst = src ^ _odst; break; \
- case GXor: \
- _ndst = src | _odst; break; \
- case GXnor: \
- _ndst = ~ src & ~ _odst; break; \
- case GXequiv: \
- _ndst = ~ src ^ _odst; break; \
- case GXinvert: \
- _ndst = ~ _odst; break; \
- case GXorReverse: \
- _ndst = src | ~ _odst; break; \
- case GXcopyInverted: \
- _ndst = ~ src; break; \
- case GXorInverted: \
- _ndst = ~ src | _odst; break; \
- case GXnand: \
- _ndst = ~ src | ~ _odst; break; \
- case GXset: \
- _ndst = ~0; break; \
- } \
- dst = (_odst & ~(mask)) | (_ndst & (mask)); \
- }
-
-static void aligned_blit(
- WindowPtr, int, int, int, int, int, int, int, int
-);
-
-static void aligned_blit_center(
- WindowPtr, int, int, int, int, int, int
-);
-
-static void shift(
- WindowPtr, int, int, int, int, int, int, int
-);
-
-static void shift_thin_rect(
- WindowPtr, int, int, int, int, int, int, int
-);
-
-static void shift_center(
- WindowPtr, int, int, int, int, int, int, int
-);
-
-void xf4bppBitBlt(pWin,alu,writeplanes,x0,y0,x1,y1,w,h)
-WindowPtr pWin; /* GJA */
-int alu;
-int writeplanes; /* planes */
-int x0, y0, x1, y1, w, h;
-{
- IOADDRESS REGBASE;
- int plane, bit;
-
- if ( !w || !h ) return;
-
- if ( ! xf86Screens[((DrawablePtr)pWin)->pScreen->myNum]->vtSema ) {
- xf4bppOffBitBlt(pWin,alu,writeplanes,x0,y0,x1,y1,w,h);
- return;
- }
-
- REGBASE =
- xf86Screens[((DrawablePtr)pWin)->pScreen->myNum]->domainIOBase + 0x300;
-
- /* 0x7, not WMASK: it is hardware dependant */
- if ( ((x0 - x1) & 0x7) || (alu != GXcopy) ) {
- /* Use slow copy */
- SetVideoGraphics(Enb_Set_ResetIndex, 0); /* All from CPU */
- SetVideoGraphics(Bit_MaskIndex, 0xFF); /* All bits */
- SetVideoGraphics(Graphics_ModeIndex, 0); /* Write mode 0 */
- SetVideoGraphics(Data_RotateIndex, 0); /* Don't rotate, replace */
-
- for ( plane = HIGHPLANEMASK, bit = HIGHPLANEINDEX ;
- plane ; plane >>= 1, bit-- )
- {
-
- if ( writeplanes & plane) {
- SetVideoGraphics(Read_Map_SelectIndex, bit);
- SetVideoSequencer(Mask_MapIndex, plane);
-
- shift(pWin,x0,x1,y0,y1,w,h,alu);
- }
- }
- } else {
- aligned_blit(pWin,x0,x1,y0,y1,w,h,alu,writeplanes);
- }
-}
-
-/* Copy a span a number of places to the right.
- */
-static void
-shift(pWin,x0,x1,y0,y1,w,h,alu)
-WindowPtr pWin; /* GJA */
-int x0; /* left edge of source */
-int x1; /* left edge of target */
-int y0;
-int y1;
-int w; /* length of source, and of target */
-int h;
-int alu;
-{
- if ( ((x1 & WMASK) + w) <= WORDSZ ) {
- shift_thin_rect(pWin,x0,x1,y0,y1,w,h,alu);
- } else if ( x1 > x0 ) { /* Shift right: start right */
- int l1 = x1 & WMASK, r1 = (x1 + w) & WMASK;
-
- if ( r1 ) /* right edge */
- shift_thin_rect(pWin,x0+w-r1,x1+w-r1,y0,y1,r1,h,alu);
- shift_center(pWin,x0,x1,y0,y1,w,h,alu);
- if ( l1 ) /* left edge */
- shift_thin_rect(pWin,x0,x1,y0,y1,(WORDSZ-l1),h,alu);
- } else {
- int l1 = x1 & WMASK, r1 = (x1 + w) & WMASK;
-
- if ( l1 ) /* left edge */
- shift_thin_rect(pWin,x0,x1,y0,y1,(WORDSZ-l1),h,alu);
- shift_center(pWin,x0,x1,y0,y1,w,h,alu);
- if ( r1 ) /* right edge */
- shift_thin_rect(pWin,x0+w-r1,x1+w-r1,y0,y1,r1,h,alu);
- }
-}
-
-/* The whole rectangle is so thin that it fits in one byte written */
-static void
-shift_thin_rect(pWin,x0,x1,y0,y1,w,h,alu)
-WindowPtr pWin; /* GJA */
-int x0; /* left edge of source */
-int x1; /* left edge of target */
-int y0;
-int y1;
-int w; /* length of source, and of target */
-int h;
-int alu;
-{
- int l0 = x0 & WMASK; /* Left edge of source, as bit */
- int l1 = x1 & WMASK; /* Left edge of target, as bit */
- int L0 = x0 >> WSHIFT; /* Left edge of source, as byte */
- int L1 = x1 >> WSHIFT; /* Left edge of target, as byte */
- int pad;
- int htmp;
- int mask;
- int tmp;
- int bs;
-
- volatile unsigned char *sp, *dp;
-
- mask = RMASK(l1) & LMASK(l1+w);
- bs = (x1 - x0) & WMASK;
-
- if ( y1 > y0 ) { /* Move down, start at the bottom */
- pad = - BYTES_PER_LINE(pWin);
- sp = SMEM(L0,y0+h-1);
- dp = DMEM(L1,y1+h-1);
- } else { /* Move up, start at the top */
- pad = BYTES_PER_LINE(pWin);
- sp = SMEM(L0,y0);
- dp = DMEM(L1,y1);
- }
-
- if ( l0+w > WORDSZ ) {
- /* Need two bytes */
- for ( htmp = h ; htmp ; htmp-- ) {
- tmp = (sp[0] << (WORDSZ - bs));
- sp++;
- tmp |= (sp[0] >> bs);
- sp--;
- DO_ALU(dp[0],tmp,mask,alu);
- dp += pad;
- sp += pad;
- }
- } else if ( l0 <= l1 ) {
- /* Need one byte, shifted right */
- for ( htmp = h ; htmp ; htmp-- ) {
- tmp = (sp[0] >> bs);
- DO_ALU(dp[0],tmp,mask,alu);
- dp += pad;
- sp += pad;
- }
- } else {
- /* Need one byte, shifted left */
- for ( htmp = h ; htmp ; htmp-- ) {
- tmp = (sp[0] << (WORDSZ - bs));
- DO_ALU(dp[0],tmp,mask,alu);
- dp += pad;
- sp += pad;
- }
- }
-}
-
-static void
-shift_center(pWin,x0,x1,y0,y1,w,h,alu)
-WindowPtr pWin; /* GJA */
-int x0; /* left edge of source */
-int x1; /* left edge of target */
-int y0;
-int y1;
-int w; /* length of source, and of target */
-int h;
-int alu;
-{
- int l1 = x1 & WMASK; /* Left edge of target, as bit */
- int r1 = (x1 + w) & WMASK; /* Right edge of target, as bit */
- int pad;
- int htmp, wtmp; /* Temporaries for indices over height and width */
- volatile unsigned char tmp; /* Temporary result of the shifts */
- int bs;
- int rem; /* Remaining bits; temporary in loop */
- int bytecnt;
-
- volatile unsigned char *sp, *dp;
-
- bs = (x1 - x0) & WMASK;
-
- if ( l1 ) {
- bytecnt = (w - (WORDSZ - l1) - r1) >> WSHIFT;
- sp = SMEM( ((x0 + (WORDSZ - l1)) >> WSHIFT), y0);
- dp = DMEM( ((x1 + (WORDSZ - l1)) >> WSHIFT), y1);
- } else {
- bytecnt = (w - r1) >> WSHIFT;
- sp = SMEM( (x0 >> WSHIFT), y0);
- dp = DMEM( (x1 >> WSHIFT), y1);
- }
-
- if ( y1 > y0 ) { /* Move down, start at the bottom */
- if ( x1 > x0 ) { /* Move right, start right */
- pad = - BYTES_PER_LINE(pWin) + bytecnt;
- sp += BYTES_PER_LINE(pWin) * (h - 1) + bytecnt - 1;
- dp += BYTES_PER_LINE(pWin) * (h - 1) + bytecnt - 1;
- } else { /* Move left, start left */
- pad = - BYTES_PER_LINE(pWin) - bytecnt;
- sp += BYTES_PER_LINE(pWin) * (h - 1);
- dp += BYTES_PER_LINE(pWin) * (h - 1);
- }
- } else { /* Move up, start at the top */
- if ( x1 > x0 ) { /* Move right, start right */
- pad = BYTES_PER_LINE(pWin) + bytecnt;
- sp += bytecnt - 1;
- dp += bytecnt - 1;
- } else { /* Move left, start left */
- pad = BYTES_PER_LINE(pWin) - bytecnt;
- sp += 0;
- dp += 0;
- }
- }
-
- if ( x1 > x0 ) { /* Move right, start right */
- if ( bs == 0 ) { /* No shift. Need one byte only */
- for ( htmp = h ; htmp ; htmp-- ) {
- for ( wtmp = bytecnt ; wtmp ; wtmp-- ) {
- tmp = sp[0];
- DO_ALU(dp[0],tmp,~0,alu);
- dp--;
- sp--;
- }
- dp += pad;
- sp += pad;
- }
- } else {
- for ( htmp = h ; htmp ; htmp-- ) {
- if ( bytecnt ) {
- sp++;
- rem = sp[0];
- sp--;
- for ( wtmp = bytecnt ; wtmp ; wtmp-- ) {
- tmp = (rem >> bs);
- rem = sp[0];
- tmp |= (rem << (WORDSZ - bs)) ;
- DO_ALU(dp[0],tmp,~0,alu);
- dp--;
- sp--;
- }
- }
- dp += pad;
- sp += pad;
- }
- }
- } else { /* x1 <= x0 */ /* Move left, start left */
- if ( bs == 0 ) { /* No shift. Need one byte only */
- for ( htmp = h ; htmp ; htmp-- ) {
- for ( wtmp = bytecnt ; wtmp ; wtmp-- ) {
- tmp = sp[0];
- DO_ALU(dp[0],tmp,~0,alu);
- dp++;
- sp++;
- }
- dp += pad;
- sp += pad;
- }
- } else {
- for ( htmp = h ; htmp ; htmp-- ) {
- if ( bytecnt ) {
- rem = sp[0];
- for ( wtmp = bytecnt ; wtmp ; wtmp-- ) {
- tmp = (rem << (WORDSZ - bs));
- sp++;
- rem = sp[0];
- sp--;
- tmp |= (rem >> bs);
- DO_ALU(dp[0],tmp,~0,alu);
- dp++;
- sp++;
- }
- }
- dp += pad;
- sp += pad;
- }
- }
- }
-}
-
-/* Copy a rectangle.
- */
-static void
-aligned_blit(pWin,x0,x1,y0,y1,w,h,alu,planes)
-WindowPtr pWin; /* GJA */
-int x0; /* left edge of source */
-int x1; /* left edge of target */
-int y0;
-int y1;
-int w; /* length of source, and of target */
-int h;
-int alu;
-int planes;
-{
- IOADDRESS REGBASE =
- xf86Screens[((DrawablePtr)pWin)->pScreen->myNum]->domainIOBase + 0x300;
- int plane, bit;
-
- if ( ((x1 & WMASK) + w) <= WORDSZ ) {
- SetVideoGraphics(Enb_Set_ResetIndex, 0); /* All from CPU */
- SetVideoGraphics(Bit_MaskIndex, 0xFF); /* All bits */
- SetVideoGraphics(Graphics_ModeIndex, 0); /* Write mode 0 */
- SetVideoGraphics(Data_RotateIndex, 0); /* Don't rotate, replace */
-
- for ( plane = HIGHPLANEMASK, bit = HIGHPLANEINDEX;
- plane ; plane >>= 1, bit-- )
- {
- if ( planes & plane) {
- SetVideoGraphics(Read_Map_SelectIndex, bit);
- SetVideoSequencer(Mask_MapIndex, plane);
-
- shift_thin_rect(pWin,x0,x1,y0,y1,w,h,alu);
- }
- }
- } else if ( x1 > x0 ) { /* Shift right: start right */
- int l1 = x1 & WMASK, r1 = (x1 + w) & WMASK;
-
- if ( r1 ) { /* right edge */
- SetVideoGraphics(Enb_Set_ResetIndex, 0); /* All from CPU */
- SetVideoGraphics(Bit_MaskIndex, 0xFF); /* All bits */
- SetVideoGraphics(Graphics_ModeIndex, 0); /* Write mode 0 */
- SetVideoGraphics(Data_RotateIndex, 0); /* Don't rotate, replace */
-
- for ( plane = HIGHPLANEMASK, bit = HIGHPLANEINDEX;
- plane ; plane >>= 1, bit-- )
- {
- if ( planes & plane) {
- SetVideoGraphics(Read_Map_SelectIndex, bit);
- SetVideoSequencer(Mask_MapIndex, plane);
-
- shift_thin_rect(pWin,x0+w-r1,x1+w-r1,y0,y1,r1,h,alu);
- }
- }
- }
-
- /* Center */
- SetVideoGraphics(Graphics_ModeIndex, 1); /* Write mode 1 */
- SetVideoSequencer(Mask_MapIndex, planes);
-
- aligned_blit_center(pWin,x0,x1,y0,y1,w,h);
-
- if ( l1 ) { /* left edge */
- SetVideoGraphics(Enb_Set_ResetIndex, 0); /* All from CPU */
- SetVideoGraphics(Bit_MaskIndex, 0xFF); /* All bits */
- SetVideoGraphics(Graphics_ModeIndex, 0); /* Write mode 0 */
- SetVideoGraphics(Data_RotateIndex, 0); /* Don't rotate, replace */
-
- for ( plane = HIGHPLANEMASK, bit = HIGHPLANEINDEX;
- plane ; plane >>= 1, bit-- )
- {
- if ( planes & plane) {
- SetVideoGraphics(Read_Map_SelectIndex, bit);
- SetVideoSequencer(Mask_MapIndex, plane);
-
- shift_thin_rect(pWin,x0,x1,y0,y1,(WORDSZ-l1),h,alu);
- }
- }
- }
- } else {
- int l1 = x1 & WMASK, r1 = (x1 + w) & WMASK;
-
- if ( l1 ) { /* left edge */
- SetVideoGraphics(Enb_Set_ResetIndex, 0); /* All from CPU */
- SetVideoGraphics(Bit_MaskIndex, 0xFF); /* All bits */
- SetVideoGraphics(Graphics_ModeIndex, 0); /* Write mode 0 */
- SetVideoGraphics(Data_RotateIndex, 0); /* Don't rotate, replace */
-
- for ( plane = HIGHPLANEMASK, bit = HIGHPLANEINDEX;
- plane ; plane >>= 1, bit-- )
- {
- if ( planes & plane) {
- SetVideoGraphics(Read_Map_SelectIndex, bit);
- SetVideoSequencer(Mask_MapIndex, plane);
-
- shift_thin_rect(pWin,x0,x1,y0,y1,(WORDSZ-l1),h,alu);
- }
- }
- }
-
- /* Center */
- SetVideoGraphics(Graphics_ModeIndex, 1); /* Write mode 1 */
- SetVideoSequencer(Mask_MapIndex, planes);
-
- aligned_blit_center(pWin,x0,x1,y0,y1,w,h);
-
- if ( r1 ) { /* right edge */
- SetVideoGraphics(Enb_Set_ResetIndex, 0); /* All from CPU */
- SetVideoGraphics(Bit_MaskIndex, 0xFF); /* All bits */
- SetVideoGraphics(Graphics_ModeIndex, 0); /* Write mode 0 */
- SetVideoGraphics(Data_RotateIndex, 0); /* Don't rotate, replace */
-
- for ( plane = HIGHPLANEMASK, bit = HIGHPLANEINDEX ;
- plane ; plane >>= 1, bit-- )
- {
- if ( planes & plane) {
- SetVideoGraphics(Read_Map_SelectIndex, bit);
- SetVideoSequencer(Mask_MapIndex, plane);
-
- shift_thin_rect(pWin,x0+w-r1,x1+w-r1,y0,y1,r1,h,alu);
- }
- }
- }
- }
-}
-
-static void
-aligned_blit_center(pWin,x0,x1,y0,y1,w,h)
-WindowPtr pWin; /* GJA */
-int x0; /* left edge of source */
-int x1; /* left edge of target */
-int y0;
-int y1;
-int w; /* length of source, and of target */
-int h;
-{
- int l1 = x1 & WMASK; /* Left edge of target, as bit */
- int r1 = (x1 + w) & WMASK; /* Right edge of target, as bit */
- int pad;
- int htmp, wtmp; /* Temporaries for indices over height and width */
- volatile unsigned char tmp; /* Temporary result of the shifts */
- int bytecnt;
-
- volatile unsigned char *sp, *dp;
-
- if ( l1 ) {
- bytecnt = (w - (WORDSZ - l1) - r1) >> WSHIFT;
- sp = SMEM( ((x0 + (WORDSZ - l1)) >> WSHIFT), y0);
- dp = DMEM( ((x1 + (WORDSZ - l1)) >> WSHIFT), y1);
- } else {
- bytecnt = (w - r1) >> WSHIFT;
- sp = SMEM( (x0 >> WSHIFT), y0);
- dp = DMEM( (x1 >> WSHIFT), y1);
- }
-
- if ( y1 > y0 ) { /* Move down, start at the bottom */
- if ( x1 > x0 ) { /* Move right, start right */
- pad = - BYTES_PER_LINE(pWin) + bytecnt;
- sp += BYTES_PER_LINE(pWin) * (h - 1) + bytecnt - 1;
- dp += BYTES_PER_LINE(pWin) * (h - 1) + bytecnt - 1;
- } else { /* Move left, start left */
- pad = - BYTES_PER_LINE(pWin) - bytecnt;
- sp += BYTES_PER_LINE(pWin) * (h - 1);
- dp += BYTES_PER_LINE(pWin) * (h - 1);
- }
- } else { /* Move up, start at the top */
- if ( x1 > x0 ) { /* Move right, start right */
- pad = BYTES_PER_LINE(pWin) + bytecnt;
- sp += bytecnt - 1;
- dp += bytecnt - 1;
- } else { /* Move left, start left */
- pad = BYTES_PER_LINE(pWin) - bytecnt;
- sp += 0;
- dp += 0;
- }
- }
-
- if ( x1 > x0 ) { /* Move right, start right */
- for ( htmp = h ; htmp ; htmp-- ) {
- for ( wtmp = bytecnt ; wtmp ; wtmp-- ) {
- tmp = sp[0];
- dp[0] = tmp;
- dp--;
- sp--;
- }
- dp += pad;
- sp += pad;
- }
- } else { /* x1 <= x0 */ /* Move left, start left */
- for ( htmp = h ; htmp ; htmp-- ) {
- for ( wtmp = bytecnt ; wtmp ; wtmp-- ) {
- tmp = sp[0];
- dp[0] = tmp;
- dp++;
- sp++;
- }
- dp += pad;
- sp += pad;
- }
- }
-}
-#else /* PC98_EGC */
-
-static void
-egc_fast_blt (pWin, alu, writeplanes, x0, y0, x1, y1, w, h)
-WindowPtr pWin;
-const int alu, writeplanes ;
-register int x0, x1 ;
-int y0, y1 ;
-register int w, h ;
-{
-register volatile unsigned char *src ;
-register volatile unsigned char *dst ;
-unsigned short *src_x ;
-unsigned short *dst_x ;
-int x_direction, y_interval ;
-int src_off, dst_off ;
-register int k, i ;
-unsigned short ROP_value;
-
-src = (unsigned char *)SCREENADDRESS( pWin, 0, y0);
-dst = (unsigned char *)SCREENADDRESS( pWin, 0, y1);
-
-/* Set Map Mask */
-outw(EGC_PLANE, ~(writeplanes & VGA_ALLPLANES));
-switch(alu) {
-case GXnor: /* ~(S|D) */
- ROP_value = 0x2903;
- break;
-case GXandInverted: /* ~S&D */
- ROP_value = 0x290c;
- break;
-case GXand: /* S&D */
- ROP_value = 0x29c0;
- break;
-case GXequiv: /* ~S ^ D */
- ROP_value = 0x29c3;
- break;
-case GXxor: /* S^D */
- ROP_value = 0x293c;
- break;
-case GXandReverse: /* S&~D */
- ROP_value = 0x2930;
- break;
-case GXorReverse: /* S|~D */
- ROP_value = 0x29f3;
- break;
-case GXnand: /* ~(S&D) */
- ROP_value = 0x293f;
- break;
-case GXorInverted: /* ~S|D */
- ROP_value = 0x29cf;
- break;
-case GXor: /* S|D */
- ROP_value = 0x29fa;
- break;
-case GXcopyInverted: /* ~S */
- ROP_value = 0x290f;
- break;
-case GXcopy: /* S */
-default:
- ROP_value = 0x29f0;
-}
-outw(EGC_MODE, ROP_value);
-if ( y1 > y0 ) {
- y_interval = - BYTES_PER_LINE(pWin) * 8 ;
- src += BYTES_PER_LINE(pWin) * ( h - 1 ) ;
- dst += BYTES_PER_LINE(pWin) * ( h - 1 ) ;
-}
-else {
- y_interval = BYTES_PER_LINE(pWin) * 8 ;
-}
-
-src = (unsigned char *)((int)src << 3) ;
-dst = (unsigned char *)((int)dst << 3) ;
-
-if ( y1 > y0) {
- x_direction = 0x1000 ;
- src += x0 + w - 1 ;
- dst += x1 + w - 1 ;
-} else if ( y1 < y0 ) {
- x_direction = 0 ;
- src += x0 ;
- dst += x1 ;
-} else {
- if ( x1 < x0 ) {
- x_direction = 0 ;
- src += x0 ;
- dst += x1 ;
- } else {
- x_direction = 0x1000 ;
- src += x0 + w - 1 ;
- dst += x1 + w - 1 ;
- }
-}
- outw ( EGC_LENGTH , w - 1 ) ;
-
-for ( ; h-- ; ) {
- if ( x_direction ) {
- src_off = 15 - (int)src & 0xf ;
- dst_off = 15 - (int)dst & 0xf ;
- } else {
- src_off = (int)src & 0xf ;
- dst_off = (int)dst & 0xf ;
- }
-#if defined(__NetBSD__) || defined(__OpenBSD__)
- src_x = (unsigned short *)(((unsigned int)src >> 4 ) << 1) ;
- dst_x = (unsigned short *)(((unsigned int)dst >> 4 ) << 1) ;
-#else
- src_x = (unsigned short *)(((int)src >> 4 ) << 1) ;
- dst_x = (unsigned short *)(((int)dst >> 4 ) << 1) ;
-#endif
- k = ( src_off + w + 15 ) >> 4 ;
- if ( src_off < dst_off ) {
- if ( ((src_off + w - 1 ) >> 4) < ((dst_off + w - 1) >> 4)) k++ ;
- }
- if ( src_off > dst_off ) {
- if ( ((src_off + w - 1) >> 4 ) == ((dst_off + w - 1) >> 4) ) k++ ;
- if ( x_direction ) dst_x ++ ;
- else dst_x -- ;
- }
- outw ( EGC_ADD , x_direction | src_off | dst_off << 4 );
- if ( x_direction ) {
- wcopyl ( src_x, dst_x, k, VIDBASE(pWin) ) ;
- } else {
- wcopyr ( src_x, dst_x, k, VIDBASE(pWin) ) ;
- }
-src += y_interval ;
-dst += y_interval ;
-}
-outw ( EGC_ADD, 0 ) ;
-outw ( EGC_LENGTH , 0xf );
-return;
-}
-
-void
-xf4bppBitBlt( pWin,alu, writeplanes, x0, y0, x1, y1, w, h )
-WindowPtr pWin; /* GJA */
-int alu;
-int writeplanes; /* planes */
-int x0, y0, x1, y1, w, h;
-{
- if ( ! xf86Screens[((DrawablePtr)pWin)->pScreen->myNum]->vtSema ) {
- xf4bppOffBitBlt( pWin, alu, writeplanes,
- x0, y0, x1, y1, w, h );
- return;
- }
-
-switch ( alu ) {
- case GXclear: /* 0x0 Zero 0 */
- case GXinvert: /* 0xa NOT dst */
- case GXset: /* 0xf 1 */
- xf4bppFillSolid( pWin, VGA_ALLPLANES, alu, writeplanes, x1, y1, w, h ) ;
- /* x1, y1, GJA */
- case GXnoop: /* 0x5 dst */
- return ;
- default:
- break ;
-}
-
-egc_fast_blt ( pWin, alu, writeplanes, x0, y0, x1, y1, w, h);
-return;
-}
-#endif
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-19 12:52:57 +0000