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Diffstat (limited to 'nx-X11/programs/Xserver/mfb/maskbits.h')
| -rw-r--r-- | nx-X11/programs/Xserver/mfb/maskbits.h | 689 |
1 files changed, 0 insertions, 689 deletions
diff --git a/nx-X11/programs/Xserver/mfb/maskbits.h b/nx-X11/programs/Xserver/mfb/maskbits.h deleted file mode 100644 index 997e412ea..000000000 --- a/nx-X11/programs/Xserver/mfb/maskbits.h +++ /dev/null @@ -1,689 +0,0 @@ -/* Combined Purdue/PurduePlus patches, level 2.1, 1/24/89 */ -/*********************************************************** -Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts. - - 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 Digital not be -used in advertising or publicity pertaining to distribution of the -software without specific, written prior permission. - -DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING -ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL -DIGITAL 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_DIX_CONFIG_H -#include <dix-config.h> -#endif - -#include <nx-X11/X.h> -#include <nx-X11/Xmd.h> -#include "servermd.h" - - -/* the following notes use the following conventions: -SCREEN LEFT SCREEN RIGHT -in this file and maskbits.c, left and right refer to screen coordinates, -NOT bit numbering in registers. - -starttab[n] - bits[0,n-1] = 0 bits[n,PLST] = 1 -endtab[n] = - bits[0,n-1] = 1 bits[n,PLST] = 0 - -startpartial[], endpartial[] - these are used as accelerators for doing putbits and masking out -bits that are all contained between longword boudaries. the extra -256 bytes of data seems a small price to pay -- code is smaller, -and narrow things (e.g. window borders) go faster. - -the names may seem misleading; they are derived not from which end -of the word the bits are turned on, but at which end of a scanline -the table tends to be used. - -look at the tables and macros to understand boundary conditions. -(careful readers will note that starttab[n] = ~endtab[n] for n != 0) - ------------------------------------------------------------------------ -these two macros depend on the screen's bit ordering. -in both of them x is a screen position. they are used to -combine bits collected from multiple longwords into a -single destination longword, and to unpack a single -source longword into multiple destinations. - -SCRLEFT(dst, x) - takes dst[x, PPW] and moves them to dst[0, PPW-x] - the contents of the rest of dst are 0. - this is a right shift on LSBFirst (forward-thinking) - machines like the VAX, and left shift on MSBFirst - (backwards) machines like the 680x0 and pc/rt. - -SCRRIGHT(dst, x) - takes dst[0,x] and moves them to dst[PPW-x, PPW] - the contents of the rest of dst are 0. - this is a left shift on LSBFirst, right shift - on MSBFirst. - - -the remaining macros are cpu-independent; all bit order dependencies -are built into the tables and the two macros above. - -maskbits(x, w, startmask, endmask, nlw) - for a span of width w starting at position x, returns -a mask for ragged bits at start, mask for ragged bits at end, -and the number of whole longwords between the ends. - -maskpartialbits(x, w, mask) - works like maskbits(), except all the bits are in the - same longword (i.e. (x&PIM + w) <= PPW) - -maskPPWbits(x, w, startmask, endmask, nlw) - as maskbits, but does not calculate nlw. it is used by - mfbGlyphBlt to put down glyphs <= PPW bits wide. - -------------------------------------------------------------------- - -NOTE - any pointers passed to the following 4 macros are - guranteed to be PPW-bit aligned. - The only non-PPW-bit-aligned references ever made are - to font glyphs, and those are made with getleftbits() - and getshiftedleftbits (qq.v.) - - For 64-bit server, it is assumed that we will never have font padding - of more than 4 bytes. The code uses int's to access the fonts - intead of longs. - -getbits(psrc, x, w, dst) - starting at position x in psrc (x < PPW), collect w - bits and put them in the screen left portion of dst. - psrc is a longword pointer. this may span longword boundaries. - it special-cases fetching all w bits from one longword. - - +--------+--------+ +--------+ - | | m |n| | ==> | m |n| | - +--------+--------+ +--------+ - x x+w 0 w - psrc psrc+1 dst - m = PPW - x - n = w - m - - implementation: - get m bits, move to screen-left of dst, zeroing rest of dst; - get n bits from next word, move screen-right by m, zeroing - lower m bits of word. - OR the two things together. - -putbits(src, x, w, pdst) - starting at position x in pdst, put down the screen-leftmost - w bits of src. pdst is a longword pointer. this may - span longword boundaries. - it special-cases putting all w bits into the same longword. - - +--------+ +--------+--------+ - | m |n| | ==> | | m |n| | - +--------+ +--------+--------+ - 0 w x x+w - dst pdst pdst+1 - m = PPW - x - n = w - m - - implementation: - get m bits, shift screen-right by x, zero screen-leftmost x - bits; zero rightmost m bits of *pdst and OR in stuff - from before the semicolon. - shift src screen-left by m, zero bits n-PPW; - zero leftmost n bits of *(pdst+1) and OR in the - stuff from before the semicolon. - -putbitsrop(src, x, w, pdst, ROP) - like putbits but calls DoRop with the rasterop ROP (see mfb.h for - DoRop) - -putbitsrrop(src, x, w, pdst, ROP) - like putbits but calls DoRRop with the reduced rasterop ROP - (see mfb.h for DoRRop) - ------------------------------------------------------------------------ - The two macros below are used only for getting bits from glyphs -in fonts, and glyphs in fonts are gotten only with the following two -mcros. - You should tune these macros toyour font format and cpu -byte ordering. - -NOTE -getleftbits(psrc, w, dst) - get the leftmost w (w<=32) bits from *psrc and put them - in dst. this is used by the mfbGlyphBlt code for glyphs - <=PPW bits wide. - psrc is declared (unsigned char *) - - psrc is NOT guaranteed to be PPW-bit aligned. on many - machines this will cause problems, so there are several - versions of this macro. - - this macro is called ONLY for getting bits from font glyphs, - and depends on the server-natural font padding. - - for blazing text performance, you want this macro - to touch memory as infrequently as possible (e.g. - fetch longwords) and as efficiently as possible - (e.g. don't fetch misaligned longwords) - -getshiftedleftbits(psrc, offset, w, dst) - used by the font code; like getleftbits, but shifts the - bits SCRLEFT by offset. - this is implemented portably, calling getleftbits() - and SCRLEFT(). - psrc is declared (unsigned char *). -*/ - -/* to match CFB and allow algorithm sharing ... - * name mfb32 mfb64 explanation - * ---- ------ ----- ----------- - * PGSZ 32 64 pixel group size (in bits; same as PPW for mfb) - * PGSZB 4 8 pixel group size (in bytes) - * PPW 32 64 pixels per word (pixels per pixel group) - * PLST 31 63 index of last pixel in a word (should be PPW-1) - * PIM 0x1f 0x3f pixel index mask (index within a pixel group) - * PWSH 5 6 pixel-to-word shift (should be log2(PPW)) - * - * The MFB_ versions are here so that cfb can include maskbits.h to get - * the bitmap constants without conflicting with its own P* constants. - * - * Keith Packard (keithp@suse.com): - * Note mfb64 is no longer supported; it requires DIX support - * for realigning images which costs too much - */ - -/* warning: PixelType definition duplicated in mfb.h */ -#ifndef PixelType -#define PixelType CARD32 -#endif /* PixelType */ -#ifndef MfbBits -#define MfbBits CARD32 -#endif - -#define MFB_PGSZB 4 -#define MFB_PPW (MFB_PGSZB<<3) /* assuming 8 bits per byte */ -#define MFB_PGSZ MFB_PPW -#define MFB_PLST (MFB_PPW-1) -#define MFB_PIM MFB_PLST - -/* set PWSH = log2(PPW) using brute force */ - -#if MFB_PPW == 32 -#define MFB_PWSH 5 -#endif /* MFB_PPW == 32 */ - -/* XXX don't use these five */ -extern PixelType starttab[]; -extern PixelType endtab[]; -extern PixelType partmasks[MFB_PPW][MFB_PPW]; -extern PixelType rmask[]; -extern PixelType mask[]; -/* XXX use these five */ -extern PixelType mfbGetstarttab(int); -extern PixelType mfbGetendtab(int); -extern PixelType mfbGetpartmasks(int, int); -extern PixelType mfbGetrmask(int); -extern PixelType mfbGetmask(int); - -#ifndef MFB_CONSTS_ONLY - -#define PGSZB MFB_PGSZB -#define PPW MFB_PPW -#define PGSZ MFB_PGSZ -#define PLST MFB_PLST -#define PIM MFB_PIM -#define PWSH MFB_PWSH - -#define BitLeft(b,s) SCRLEFT(b,s) -#define BitRight(b,s) SCRRIGHT(b,s) - -#ifdef XFree86Server -#define LONG2CHARSSAMEORDER(x) ((MfbBits)(x)) -#define LONG2CHARSDIFFORDER( x ) ( ( ( ( x ) & (MfbBits)0x000000FF ) << 0x18 ) \ - | ( ( ( x ) & (MfbBits)0x0000FF00 ) << 0x08 ) \ - | ( ( ( x ) & (MfbBits)0x00FF0000 ) >> 0x08 ) \ - | ( ( ( x ) & (MfbBits)0xFF000000 ) >> 0x18 ) ) -#endif /* XFree86Server */ - -#if (BITMAP_BIT_ORDER == IMAGE_BYTE_ORDER) -#define LONG2CHARS(x) ((MfbBits)(x)) -#else -/* - * the unsigned case below is for compilers like - * the Danbury C and i386cc - */ -#define LONG2CHARS( x ) ( ( ( ( x ) & (MfbBits)0x000000FF ) << 0x18 ) \ - | ( ( ( x ) & (MfbBits)0x0000FF00 ) << 0x08 ) \ - | ( ( ( x ) & (MfbBits)0x00FF0000 ) >> 0x08 ) \ - | ( ( ( x ) & (MfbBits)0xFF000000 ) >> 0x18 ) ) -#endif /* BITMAP_BIT_ORDER */ - -#ifdef STRICT_ANSI_SHIFT -#define SHL(x,y) ((y) >= PPW ? 0 : LONG2CHARS(LONG2CHARS(x) << (y))) -#define SHR(x,y) ((y) >= PPW ? 0 : LONG2CHARS(LONG2CHARS(x) >> (y))) -#else -#define SHL(x,y) LONG2CHARS(LONG2CHARS(x) << (y)) -#define SHR(x,y) LONG2CHARS(LONG2CHARS(x) >> (y)) -#endif - -#if (BITMAP_BIT_ORDER == MSBFirst) /* pc/rt, 680x0 */ -#define SCRLEFT(lw, n) SHL((PixelType)(lw),(n)) -#define SCRRIGHT(lw, n) SHR((PixelType)(lw),(n)) -#else /* vax, intel */ -#define SCRLEFT(lw, n) SHR((PixelType)(lw),(n)) -#define SCRRIGHT(lw, n) SHL((PixelType)(lw),(n)) -#endif - -#define DoRRop(alu, src, dst) \ -(((alu) == RROP_BLACK) ? ((dst) & ~(src)) : \ - ((alu) == RROP_WHITE) ? ((dst) | (src)) : \ - ((alu) == RROP_INVERT) ? ((dst) ^ (src)) : \ - (dst)) - -/* A generalized form of a x4 Duff's Device */ -#define Duff(counter, block) { \ - while (counter >= 4) {\ - { block; } \ - { block; } \ - { block; } \ - { block; } \ - counter -= 4; \ - } \ - switch (counter & 3) { \ - case 3: { block; } \ - case 2: { block; } \ - case 1: { block; } \ - case 0: \ - counter = 0; \ - } \ -} - -#define maskbits(x, w, startmask, endmask, nlw) \ - startmask = mfbGetstarttab((x) & PIM); \ - endmask = mfbGetendtab(((x)+(w)) & PIM); \ - if (startmask) \ - nlw = (((w) - (PPW - ((x) & PIM))) >> PWSH); \ - else \ - nlw = (w) >> PWSH; - -#define maskpartialbits(x, w, mask) \ - mask = mfbGetpartmasks((x) & PIM, (w) & PIM); - -#define maskPPWbits(x, w, startmask, endmask) \ - startmask = mfbGetstarttab((x) & PIM); \ - endmask = mfbGetendtab(((x)+(w)) & PIM); - -#ifdef __GNUC__ /* XXX don't want for Alpha? */ -#ifdef vax -#define FASTGETBITS(psrc,x,w,dst) \ - __asm ("extzv %1,%2,%3,%0" \ - : "=g" (dst) \ - : "g" (x), "g" (w), "m" (*(char *)(psrc))) -#define getbits(psrc,x,w,dst) FASTGETBITS(psrc,x,w,dst) - -#define FASTPUTBITS(src, x, w, pdst) \ - __asm ("insv %3,%1,%2,%0" \ - : "=m" (*(char *)(pdst)) \ - : "g" (x), "g" (w), "g" (src)) -#define putbits(src, x, w, pdst) FASTPUTBITS(src, x, w, pdst) -#endif /* vax */ -#ifdef mc68020 -#define FASTGETBITS(psrc, x, w, dst) \ - __asm ("bfextu %3{%1:%2},%0" \ - : "=d" (dst) : "di" (x), "di" (w), "o" (*(char *)(psrc))) - -#define getbits(psrc,x,w,dst) \ -{ \ - FASTGETBITS(psrc, x, w, dst);\ - dst = SHL(dst,(32-(w))); \ -} - -#define FASTPUTBITS(src, x, w, pdst) \ - __asm ("bfins %3,%0{%1:%2}" \ - : "=o" (*(char *)(pdst)) \ - : "di" (x), "di" (w), "d" (src), "0" (*(char *) (pdst))) - -#define putbits(src, x, w, pdst) FASTPUTBITS(SHR((src),32-(w)), x, w, pdst) - -#endif /* mc68020 */ -#endif /* __GNUC__ */ - -/* The following flag is used to override a bugfix for sun 3/60+CG4 machines, - */ - -/* We don't need to be careful about this unless we're dealing with sun3's - * We will default its usage for those who do not know anything, but will - * override its effect if the machine doesn't look like a sun3 - */ -#if !defined(mc68020) || !defined(sun) -#define NO_3_60_CG4 -#endif - -/* This is gross. We want to #define u_putbits as something which can be used - * in the case of the 3/60+CG4, but if we use /bin/cc or are on another - * machine type, we want nothing to do with u_putbits. What a hastle. Here - * I used slo_putbits as something which either u_putbits or putbits could be - * defined as. - * - * putbits gets it iff it is not already defined with FASTPUTBITS above. - * u_putbits gets it if we have FASTPUTBITS (putbits) from above and have not - * overridden the NO_3_60_CG4 flag. - */ - -#define slo_putbits(src, x, w, pdst) \ -{ \ - register int n = (x)+(w)-PPW; \ - \ - if (n <= 0) \ - { \ - register PixelType tmpmask; \ - maskpartialbits((x), (w), tmpmask); \ - *(pdst) = (*(pdst) & ~tmpmask) | \ - (SCRRIGHT(src, x) & tmpmask); \ - } \ - else \ - { \ - register int d = PPW-(x); \ - *(pdst) = (*(pdst) & mfbGetendtab(x)) | (SCRRIGHT((src), x)); \ - (pdst)[1] = ((pdst)[1] & mfbGetstarttab(n)) | \ - (SCRLEFT(src, d) & mfbGetendtab(n)); \ - } \ -} - -#if defined(putbits) && !defined(NO_3_60_CG4) -#define u_putbits(src, x, w, pdst) slo_putbits(src, x, w, pdst) -#else -#define u_putbits(src, x, w, pdst) putbits(src, x, w, pdst) -#endif - -#if !defined(putbits) -#define putbits(src, x, w, pdst) slo_putbits(src, x, w, pdst) -#endif - -/* Now if we have not gotten any really good bitfield macros, try some - * moderately fast macros. Alas, I don't know how to do asm instructions - * without gcc. - */ - -#ifndef getbits -#define getbits(psrc, x, w, dst) \ -{ \ - dst = SCRLEFT(*(psrc), (x)); \ - if ( ((x) + (w)) > PPW) \ - dst |= (SCRRIGHT(*((psrc)+1), PPW-(x))); \ -} -#endif - -/* We have to special-case putbitsrop because of 3/60+CG4 combos - */ - -#define u_putbitsrop(src, x, w, pdst, rop) \ -{\ - register PixelType t1, t2; \ - register int n = (x)+(w)-PPW; \ - \ - t1 = SCRRIGHT((src), (x)); \ - DoRop(t2, rop, t1, *(pdst)); \ - \ - if (n <= 0) \ - { \ - register PixelType tmpmask; \ - \ - maskpartialbits((x), (w), tmpmask); \ - *(pdst) = (*(pdst) & ~tmpmask) | (t2 & tmpmask); \ - } \ - else \ - { \ - int m = PPW-(x); \ - *(pdst) = (*(pdst) & mfbGetendtab(x)) | (t2 & mfbGetstarttab(x)); \ - t1 = SCRLEFT((src), m); \ - DoRop(t2, rop, t1, (pdst)[1]); \ - (pdst)[1] = ((pdst)[1] & mfbGetstarttab(n)) | (t2 & mfbGetendtab(n)); \ - } \ -} - -/* If our getbits and putbits are FAST enough, - * do this brute force, it's faster - */ - -#if defined(FASTPUTBITS) && defined(FASTGETBITS) && defined(NO_3_60_CG4) -#if (BITMAP_BIT_ORDER == MSBFirst) -#define putbitsrop(src, x, w, pdst, rop) \ -{ \ - register PixelType _tmp, _tmp2; \ - FASTGETBITS(pdst, x, w, _tmp); \ - _tmp2 = SCRRIGHT(src, PPW-(w)); \ - DoRop(_tmp, rop, _tmp2, _tmp) \ - FASTPUTBITS(_tmp, x, w, pdst); \ -} -#define putbitsrrop(src, x, w, pdst, rop) \ -{ \ - register PixelType _tmp, _tmp2; \ - \ - FASTGETBITS(pdst, x, w, _tmp); \ - _tmp2 = SCRRIGHT(src, PPW-(w)); \ - _tmp= DoRRop(rop, _tmp2, _tmp); \ - FASTPUTBITS(_tmp, x, w, pdst); \ -} -#undef u_putbitsrop -#else -#define putbitsrop(src, x, w, pdst, rop) \ -{ \ - register PixelType _tmp; \ - FASTGETBITS(pdst, x, w, _tmp); \ - DoRop(_tmp, rop, src, _tmp) \ - FASTPUTBITS(_tmp, x, w, pdst); \ -} -#define putbitsrrop(src, x, w, pdst, rop) \ -{ \ - register PixelType _tmp; \ - \ - FASTGETBITS(pdst, x, w, _tmp); \ - _tmp= DoRRop(rop, src, _tmp); \ - FASTPUTBITS(_tmp, x, w, pdst); \ -} -#undef u_putbitsrop -#endif -#endif - -#ifndef putbitsrop -#define putbitsrop(src, x, w, pdst, rop) u_putbitsrop(src, x, w, pdst, rop) -#endif - -#ifndef putbitsrrop -#define putbitsrrop(src, x, w, pdst, rop) \ -{\ - register PixelType t1, t2; \ - register int n = (x)+(w)-PPW; \ - \ - t1 = SCRRIGHT((src), (x)); \ - t2 = DoRRop(rop, t1, *(pdst)); \ - \ - if (n <= 0) \ - { \ - register PixelType tmpmask; \ - \ - maskpartialbits((x), (w), tmpmask); \ - *(pdst) = (*(pdst) & ~tmpmask) | (t2 & tmpmask); \ - } \ - else \ - { \ - int m = PPW-(x); \ - *(pdst) = (*(pdst) & mfbGetendtab(x)) | (t2 & mfbGetstarttab(x)); \ - t1 = SCRLEFT((src), m); \ - t2 = DoRRop(rop, t1, (pdst)[1]); \ - (pdst)[1] = ((pdst)[1] & mfbGetstarttab(n)) | (t2 & mfbGetendtab(n)); \ - } \ -} -#endif - -#if GETLEFTBITS_ALIGNMENT == 1 -#define getleftbits(psrc, w, dst) dst = *((CARD32 *)(void *) psrc) -#endif /* GETLEFTBITS_ALIGNMENT == 1 */ - -#if GETLEFTBITS_ALIGNMENT == 2 -#define getleftbits(psrc, w, dst) \ - { \ - if ( ((int)(psrc)) & 0x01 ) \ - getbits( ((CARD32 *)(((char *)(psrc))-1)), 8, (w), (dst) ); \ - else \ - getbits(psrc, 0, w, dst); \ - } -#endif /* GETLEFTBITS_ALIGNMENT == 2 */ - -#if GETLEFTBITS_ALIGNMENT == 4 -#define getleftbits(psrc, w, dst) \ - { \ - int off, off_b; \ - off_b = (off = ( ((int)(psrc)) & 0x03)) << 3; \ - getbits( \ - (CARD32 *)( ((char *)(psrc)) - off), \ - (off_b), (w), (dst) \ - ); \ - } -#endif /* GETLEFTBITS_ALIGNMENT == 4 */ - - -#define getshiftedleftbits(psrc, offset, w, dst) \ - getleftbits((psrc), (w), (dst)); \ - dst = SCRLEFT((dst), (offset)); - -/* FASTGETBITS and FASTPUTBITS are not necessarily correct implementations of - * getbits and putbits, but they work if used together. - * - * On a MSBFirst machine, a cpu bitfield extract instruction (like bfextu) - * could normally assign its result to a 32-bit word register in the screen - * right position. This saves canceling register shifts by not fighting the - * natural cpu byte order. - * - * Unfortunately, these fail on a 3/60+CG4 and cannot be used unmodified. Sigh. - */ -#if defined(FASTGETBITS) && defined(FASTPUTBITS) -#ifdef NO_3_60_CG4 -#define u_FASTPUT(aa, bb, cc, dd) FASTPUTBITS(aa, bb, cc, dd) -#else -#define u_FASTPUT(aa, bb, cc, dd) u_putbits(SCRLEFT(aa, PPW-(cc)), bb, cc, dd) -#endif - -#define getandputbits(psrc, srcbit, dstbit, width, pdst) \ -{ \ - register PixelType _tmpbits; \ - FASTGETBITS(psrc, srcbit, width, _tmpbits); \ - u_FASTPUT(_tmpbits, dstbit, width, pdst); \ -} - -#define getandputrop(psrc, srcbit, dstbit, width, pdst, rop) \ -{ \ - register PixelType _tmpsrc, _tmpdst; \ - FASTGETBITS(pdst, dstbit, width, _tmpdst); \ - FASTGETBITS(psrc, srcbit, width, _tmpsrc); \ - DoRop(_tmpdst, rop, _tmpsrc, _tmpdst); \ - u_FASTPUT(_tmpdst, dstbit, width, pdst); \ -} - -#define getandputrrop(psrc, srcbit, dstbit, width, pdst, rop) \ -{ \ - register PixelType _tmpsrc, _tmpdst; \ - FASTGETBITS(pdst, dstbit, width, _tmpdst); \ - FASTGETBITS(psrc, srcbit, width, _tmpsrc); \ - _tmpdst = DoRRop(rop, _tmpsrc, _tmpdst); \ - u_FASTPUT(_tmpdst, dstbit, width, pdst); \ -} - -#define getandputbits0(psrc, srcbit, width, pdst) \ - getandputbits(psrc, srcbit, 0, width, pdst) - -#define getandputrop0(psrc, srcbit, width, pdst, rop) \ - getandputrop(psrc, srcbit, 0, width, pdst, rop) - -#define getandputrrop0(psrc, srcbit, width, pdst, rop) \ - getandputrrop(psrc, srcbit, 0, width, pdst, rop) - - -#else /* Slow poke */ - -/* pairs of getbits/putbits happen frequently. Some of the code can - * be shared or avoided in a few specific instances. It gets us a - * small advantage, so we do it. The getandput...0 macros are the only ones - * which speed things here. The others are here for compatibility w/the above - * FAST ones - */ - -#define getandputbits(psrc, srcbit, dstbit, width, pdst) \ -{ \ - register PixelType _tmpbits; \ - getbits(psrc, srcbit, width, _tmpbits); \ - putbits(_tmpbits, dstbit, width, pdst); \ -} - -#define getandputrop(psrc, srcbit, dstbit, width, pdst, rop) \ -{ \ - register PixelType _tmpbits; \ - getbits(psrc, srcbit, width, _tmpbits) \ - putbitsrop(_tmpbits, dstbit, width, pdst, rop) \ -} - -#define getandputrrop(psrc, srcbit, dstbit, width, pdst, rop) \ -{ \ - register PixelType _tmpbits; \ - getbits(psrc, srcbit, width, _tmpbits) \ - putbitsrrop(_tmpbits, dstbit, width, pdst, rop) \ -} - - -#define getandputbits0(psrc, sbindex, width, pdst) \ -{ /* unroll the whole damn thing to see how it * behaves */ \ - register int _flag = PPW - (sbindex); \ - register PixelType _src; \ - \ - _src = SCRLEFT (*(psrc), (sbindex)); \ - if ((width) > _flag) \ - _src |= SCRRIGHT (*((psrc) + 1), _flag); \ - \ - *(pdst) = (*(pdst) & mfbGetstarttab((width))) | (_src & mfbGetendtab((width))); \ -} - - -#define getandputrop0(psrc, sbindex, width, pdst, rop) \ -{ \ - register int _flag = PPW - (sbindex); \ - register PixelType _src; \ - \ - _src = SCRLEFT (*(psrc), (sbindex)); \ - if ((width) > _flag) \ - _src |= SCRRIGHT (*((psrc) + 1), _flag); \ - DoRop(_src, rop, _src, *(pdst)); \ - \ - *(pdst) = (*(pdst) & mfbGetstarttab((width))) | (_src & mfbGetendtab((width))); \ -} - -#define getandputrrop0(psrc, sbindex, width, pdst, rop) \ -{ \ - int _flag = PPW - (sbindex); \ - register PixelType _src; \ - \ - _src = SCRLEFT (*(psrc), (sbindex)); \ - if ((width) > _flag) \ - _src |= SCRRIGHT (*((psrc) + 1), _flag); \ - _src = DoRRop(rop, _src, *(pdst)); \ - \ - *(pdst) = (*(pdst) & mfbGetstarttab((width))) | (_src & mfbGetendtab((width))); \ -} - -#endif /* FASTGETBITS && FASTPUTBITS */ - -#endif /* MFB_CONSTS_ONLY */ |