diff options
author | marha <marha@users.sourceforge.net> | 2009-07-25 19:39:46 +0000 |
---|---|---|
committer | marha <marha@users.sourceforge.net> | 2009-07-25 19:39:46 +0000 |
commit | 4a3dbb926ae3f5410198d7cc4f4ebe4f62eebf05 (patch) | |
tree | c1e02b9d3509aa97703aa4b540d4cd22ec4600ed /xorg-server/hw/xfree86/xf4bpp/vgaBitBlt.c | |
parent | dc3c299dd0995549e2a6973ca0f25b254afd38a5 (diff) | |
download | vcxsrv-4a3dbb926ae3f5410198d7cc4f4ebe4f62eebf05.tar.gz vcxsrv-4a3dbb926ae3f5410198d7cc4f4ebe4f62eebf05.tar.bz2 vcxsrv-4a3dbb926ae3f5410198d7cc4f4ebe4f62eebf05.zip |
Added xorg-server-1.6.2.tar.gz
Diffstat (limited to 'xorg-server/hw/xfree86/xf4bpp/vgaBitBlt.c')
-rw-r--r-- | xorg-server/hw/xfree86/xf4bpp/vgaBitBlt.c | 749 |
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 |