--- /dev/null
+/* 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.
+
+******************************************************************/
+/* $XConsortium: maskbits.h,v 1.33 94/04/17 20:28:13 dpw Exp $ */
+/* $XFree86: xc/programs/Xserver/mfb/maskbits.h,v 3.3 1996/12/09 11:56:33 dawes Exp $ */
+#include "X.h"
+#include "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.
+ */
+
+/* warning: PixelType definition duplicated in mfb.h */
+#ifndef PixelType
+#define PixelType unsigned long
+#endif /* PixelType */
+
+#ifdef LONG64
+#define MFB_PGSZB 8
+#else
+#define MFB_PGSZB 4
+#endif /* LONG64 */
+#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
+#else
+#if MFB_PPW == 64
+#define MFB_PWSH 6
+#endif /* MFB_PPW == 64 */
+#endif /* MFB_PPW == 32 */
+
+extern PixelType starttab[];
+extern PixelType endtab[];
+extern PixelType partmasks[MFB_PPW][MFB_PPW];
+extern PixelType rmask[];
+extern PixelType mask[];
+
+#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)
+
+#if (BITMAP_BIT_ORDER == IMAGE_BYTE_ORDER)
+#define LONG2CHARS(x) ((unsigned long)(x))
+#else
+/*
+ * the unsigned case below is for compilers like
+ * the Danbury C and i386cc
+ */
+#if PPW == 32
+#define LONG2CHARS( x ) ( ( ( ( x ) & (unsigned long)0x000000FF ) << 0x18 ) \
+ | ( ( ( x ) & (unsigned long)0x0000FF00 ) << 0x08 ) \
+ | ( ( ( x ) & (unsigned long)0x00FF0000 ) >> 0x08 ) \
+ | ( ( ( x ) & (unsigned long)0xFF000000 ) >> 0x18 ) )
+#else /* PPW == 64 */
+#if defined( __alpha__)
+#define LONG2CHARS( x ) \
+ ( ( ( ( x ) & 0x000000FFUL) << 0x38 ) \
+ | ( ( ( x ) & 0x0000FF00UL) << 0x28 ) \
+ | ( ( ( x ) & 0x00FF0000UL) << 0x18 ) \
+ | ( ( ( x ) & 0xFF000000UL) << 0x08 ) \
+ | ( ( ( x ) & 0x000000FF00000000UL) >> 0x08 ) \
+ | ( ( ( x ) & 0x0000FF0000000000UL) >> 0x18 ) \
+ | ( ( ( x ) & 0x00FF000000000000UL) >> 0x28 ) \
+ | ( ( ( x ) & 0xFF00000000000000UL) >> 0x38 ) )
+#else /* __alpha__ */
+#define LONG2CHARS( x ) ( ( ( ( x ) & 0x000000FF000000FFUL) << 0x18 ) \
+ | ( ( ( x ) & 0x0000FF000000FF00UL) << 0x08 ) \
+ | ( ( ( x ) & 0x00FF000000FF0000UL) >> 0x08 ) \
+ | ( ( ( x ) & 0xFF000000FF000000UL) >> 0x18 ) )
+#endif /* __alpha__ */
+#endif /* PPW */
+#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))
+
+#if PPW == 32
+/* 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; \
+ } \
+}
+#else /* PPW == 64 */
+/* A generalized form of a x8 Duff's Device */
+#define Duff(counter, block) { \
+ while (counter >= 8) {\
+ { block; } \
+ { block; } \
+ { block; } \
+ { block; } \
+ { block; } \
+ { block; } \
+ { block; } \
+ { block; } \
+ counter -= 8; \
+ } \
+ switch (counter & 7) { \
+ case 7: { block; } \
+ case 6: { block; } \
+ case 5: { block; } \
+ case 4: { block; } \
+ case 3: { block; } \
+ case 2: { block; } \
+ case 1: { block; } \
+ case 0: \
+ counter = 0; \
+ } \
+}
+#endif /* PPW */
+
+
+#define maskbits(x, w, startmask, endmask, nlw) \
+ startmask = starttab[(x) & PIM]; \
+ endmask = endtab[((x)+(w)) & PIM]; \
+ if (startmask) \
+ nlw = (((w) - (PPW - ((x) & PIM))) >> PWSH); \
+ else \
+ nlw = (w) >> PWSH;
+
+#define maskpartialbits(x, w, mask) \
+ mask = partmasks[(x) & PIM][(w) & PIM];
+
+#define maskPPWbits(x, w, startmask, endmask) \
+ startmask = starttab[(x) & PIM]; \
+ endmask = endtab[((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 \
+ { \
+ *(pdst) = (*(pdst) & endtab[x]) | (SCRRIGHT((src), x)); \
+ (pdst)[1] = ((pdst)[1] & starttab[n]) | \
+ (SCRLEFT(src, PPW-(x)) & endtab[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) & endtab[x]) | (t2 & starttab[x]); \
+ t1 = SCRLEFT((src), m); \
+ DoRop(t2, rop, t1, (pdst)[1]); \
+ (pdst)[1] = ((pdst)[1] & starttab[n]) | (t2 & endtab[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) & endtab[x]) | (t2 & starttab[x]); \
+ t1 = SCRLEFT((src), m); \
+ t2 = DoRRop(rop, t1, (pdst)[1]); \
+ (pdst)[1] = ((pdst)[1] & starttab[n]) | (t2 & endtab[n]); \
+ } \
+}
+#endif
+
+#if GETLEFTBITS_ALIGNMENT == 1
+#define getleftbits(psrc, w, dst) dst = *((CARD32 *) 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 long 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) & starttab[(width)]) | (_src & endtab[(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) & starttab[(width)]) | (_src & endtab[(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) & starttab[(width)]) | (_src & endtab[(width)]); \
+}
+
+#endif /* FASTGETBITS && FASTPUTBITS */
+
+#endif /* MFB_CONSTS_ONLY */
projects / rdpsrv / blobdiff