diff options
| -rw-r--r-- | nx-X11/programs/Xserver/Imakefile | 33 | ||||
| -rw-r--r-- | nx-X11/programs/Xserver/fb/fb.h | 3 | ||||
| -rw-r--r-- | nx-X11/programs/Xserver/include/servermd.h | 164 | ||||
| -rw-r--r-- | nx-X11/programs/Xserver/mfb/maskbits.h | 689 |
4 files changed, 15 insertions, 874 deletions
diff --git a/nx-X11/programs/Xserver/Imakefile b/nx-X11/programs/Xserver/Imakefile index c98e746cb..d851e5472 100644 --- a/nx-X11/programs/Xserver/Imakefile +++ b/nx-X11/programs/Xserver/Imakefile @@ -46,20 +46,9 @@ INSTPGMFLAGS = #endif #define PreFbLibs $(DIX) $(OS) $(XPDDX) -#define PreFbLibsNoFont $(DIX) $(OS) -#define BarePostFbLibs $(MFB) $(XPFBLIBS) $(MI) +#define BarePostFbLibs $(XPFBLIBS) $(MI) #define PostFbLibs BarePostFbLibs $(EXTENSIONS) -#define NoMfbBarePostFbLibs $(XPFBLIBS) $(MI) -#if !BuildXinerama -#define NoMfbPostFbLibs NoMfbBarePostFbLibs $(EXTENSIONS) -#else -#define NoMfbPostFbLibs $(EXTENSIONS) NoMfbBarePostFbLibs $(EXTENSIONS) -#endif -#define MFBBareLibs PreFbLibs BarePostFbLibs -#define NoMFBBareLibs PreFbLibs NoMfbBarePostFbLibs -#define MFBLibs PreFbLibs PostFbLibs -#define NoMFBLibs PreFbLibs NoMfbPostFbLibs #define CFBLibs PreFbLibs $(CFB) PostFbLibs #define CFB4Libs PreFbLibs $(CFB4) PostFbLibs #define CFB8Libs PreFbLibs $(CFB8) PostFbLibs @@ -67,9 +56,12 @@ INSTPGMFLAGS = #define CFB24Libs PreFbLibs $(CFB24) PostFbLibs #define CFB32Libs PreFbLibs $(CFB32) PostFbLibs -#define NoMFBCFBLibs PreFbLibs $(CFB) NoMfbPostFbLibs -#define NoMFBCFB8Libs PreFbLibs $(CFB8) NoMfbPostFbLibs -#define FbPostFbLibs $(FB) NoMfbPostFbLibs +#if !BuildXinerama +#define FbPostFbLibs $(FB) BarePostFbLibs $(EXTENSIONS) +#else +#define FbPostFbLibs $(FB) $(EXTENSIONS) BarePostFbLibs $(EXTENSIONS) +#endif + #define FBLibs PreFbLibs FbPostFbLibs #define MiExtLibs $(SHADOW) @@ -172,7 +164,6 @@ INSTPGMFLAGS = OS = os/LibraryTargetName(os) BSDEMUL = $(DEPXBSDLIB) #if DoLoadableServer - MFB = mfb/ModuleLibraryTargetName(mfb) FB = fb/ModuleLibraryTargetName(fb) #if XF8_32Wid CFB = cfb/ModuleLibraryTargetName(cfb) \ @@ -199,7 +190,6 @@ INSTPGMFLAGS = SHADOW = miext/shadow/ModuleLibraryTargetName(shadow) LAYER = miext/layer/ModuleLibraryTargetName(layer) #else - MFB = mfb/LibraryTargetName(mfb) FB = fb/LibraryTargetName(fb) #if XF8_32Wid CFB = cfb16/LibraryTargetName(cfb16) \ @@ -259,7 +249,6 @@ INSTPGMFLAGS = #endif STDDIRS = include dix os mi $(XPDDXDIR) $(EXTDIRS) FBDIR = fb - MFBDIR = mfb CFB4DIR = cfb4 CFB8DIR = cfb CFB16DIR = cfb16 @@ -278,8 +267,6 @@ XCOMM /* Build rule blocks, add one for each server * - * If a server needs mfb, its build block should have a line like: - * MFBSUBDIR = mfb * Similarly, its build block should have: * CFB4SUBDIR = cfb4 (if the server needs 4 bit cfb) * CFB8SUBDIR = cfb (8 bit cfb) @@ -309,7 +296,7 @@ NXWIN = NXWin (!MakeDllModules && defined(NXWinServer) && NXWinServer) MakeMutex($(NXAGENT) $(NXWIN)) #endif -MakeMutex($(STDDIRS) mfb fb cfb cfb16 cfb24 cfb32) +MakeMutex($(STDDIRS) fb cfb cfb16 cfb24 cfb32) #endif @@ -326,7 +313,7 @@ NXAGENTDDXDIR = hw/nxagent NXAGENTDDXDIR = hw #endif -NXAGENTDIRS = $(STDDIRS) $(MFBDIR) $(FBDIR) $(MIDAMAGEDIR) $(NXAGENTDDXDIR) $(DEPDIRS) +NXAGENTDIRS = $(STDDIRS) $(FBDIR) $(MIDAMAGEDIR) $(NXAGENTDDXDIR) $(DEPDIRS) NX_XCOMP_HEADERS = \ ../../../nxcomp/NXalert.h \ @@ -632,7 +619,7 @@ IPLANDIRS = $(IPLAN2P2DIR) $(IPLAN2P4DIR) $(IPLAN2P8DIR) DDXDIRS = $(DECWSDDXDIR) $(SUNDDXDIR) $(LYNXDDXDIR) \ $(HPDDXDIR) $(XFREE86DDXDIR) \ $(NXAGENTDDXDIR) $(NXWINDDXDIR) -SUBDIRS = $(STDDIRS) $(MFBSUBDIR) $(CFBSUBDIRS) \ +SUBDIRS = $(STDDIRS) $(CFBSUBDIRS) \ $(IPLANDIRS) $(ILBMDIR) $(AFBSUBDIR) \ $(DDXDIRS) $(FBSUBDIR) $(KDRIVEDIRS) $(MIEXTDIRS) diff --git a/nx-X11/programs/Xserver/fb/fb.h b/nx-X11/programs/Xserver/fb/fb.h index 317b57c5a..7c33562b4 100644 --- a/nx-X11/programs/Xserver/fb/fb.h +++ b/nx-X11/programs/Xserver/fb/fb.h @@ -66,9 +66,6 @@ #if GLYPHPADBYTES != 4 #error "GLYPHPADBYTES must be 4" #endif -#if GETLEFTBITS_ALIGNMENT != 1 -#error "GETLEFTBITS_ALIGNMENT must be 1" -#endif /* whether to bother to include 24bpp support */ #ifndef FBNO24BIT #define FB_24BIT diff --git a/nx-X11/programs/Xserver/include/servermd.h b/nx-X11/programs/Xserver/include/servermd.h index 7652964d0..27b5a8fb9 100644 --- a/nx-X11/programs/Xserver/include/servermd.h +++ b/nx-X11/programs/Xserver/include/servermd.h @@ -49,6 +49,11 @@ SOFTWARE. #define SERVERMD_H 1 /* + * Note: much of this is vestigial from mfb/cfb times. This should + * really be simplified even further. + */ + +/* * Machine dependent values: * GLYPHPADBYTES should be chosen with consideration for the space-time * trade-off. Padding to 0 bytes means that there is no wasted space @@ -62,62 +67,6 @@ SOFTWARE. * kept separate from this. See server/include/font.h for how * GLYPHPADBYTES is used. * - * Along with this, you should choose an appropriate value for - * GETLEFTBITS_ALIGNMENT, which is used in ddx/mfb/maskbits.h. This - * constant choses what kind of memory references are guarenteed during - * font access; either 1, 2 or 4, for byte, word or longword access, - * respectively. For instance, if you have decided to to have - * GLYPHPADBYTES == 4, then it is pointless for you to have a - * GETLEFTBITS_ALIGNMENT > 1, because the padding of the fonts has already - * guarenteed you that your fonts are longword aligned. On the other - * hand, even if you have chosen GLYPHPADBYTES == 1 to save space, you may - * also decide that the computing involved in aligning the pointer is more - * costly than an odd-address access; you choose GETLEFTBITS_ALIGNMENT == 1. - * - * Next, choose the tuning parameters which are appropriate for your - * hardware; these modify the behaviour of the raw frame buffer code - * in ddx/mfb and ddx/cfb. Defining these incorrectly will not cause - * the server to run incorrectly, but defining these correctly will - * cause some noticeable speed improvements: - * - * AVOID_MEMORY_READ - (8-bit cfb only) - * When stippling pixels on the screen (polytext and pushpixels), - * don't read long words from the display and mask in the - * appropriate values. Rather, perform multiple byte/short/long - * writes as appropriate. This option uses many more instructions - * but runs much faster when the destination is much slower than - * the CPU and at least 1 level of write buffer is availible (2 - * is much better). Defined currently for SPARC and MIPS. - * - * FAST_CONSTANT_OFFSET_MODE - (cfb and mfb) - * This define is used on machines which have no auto-increment - * addressing mode, but do have an effectively free constant-offset - * addressing mode. Currently defined for MIPS and SPARC, even though - * I remember the cg6 as performing better without it (cg3 definitely - * performs better with it). - * - * LARGE_INSTRUCTION_CACHE - - * This define increases the number of times some loops are - * unrolled. On 68020 machines (with 256 bytes of i-cache), - * this define will slow execution down as instructions miss - * the cache frequently. On machines with real i-caches, this - * reduces loop overhead, causing a slight performance improvement. - * Currently defined for MIPS and SPARC - * - * FAST_UNALIGNED_READS - - * For machines with more memory bandwidth than CPU, this - * define uses unaligned reads for 8-bit BitBLT instead of doing - * aligned reads and combining the results with shifts and - * logical-ors. Currently defined for 68020 and vax. - * PLENTIFUL_REGISTERS - - * For machines with > 20 registers. Currently used for - * unrolling the text painting code a bit more. Currently - * defined for MIPS. - * SHARED_IDCACHE - - * For non-Harvard RISC machines, those which share the same - * CPU memory bus for instructions and data. This unrolls some - * solid fill loops which are otherwise best left rolled up. - * Currently defined for SPARC. */ #ifdef vax @@ -125,8 +74,6 @@ SOFTWARE. #define IMAGE_BYTE_ORDER LSBFirst /* Values for the VAX only */ #define BITMAP_BIT_ORDER LSBFirst #define GLYPHPADBYTES 1 -#define GETLEFTBITS_ALIGNMENT 4 -#define FAST_UNALIGNED_READS #endif /* vax */ @@ -145,9 +92,6 @@ SOFTWARE. # endif #define GLYPHPADBYTES 4 -#define GETLEFTBITS_ALIGNMENT 1 -#define LARGE_INSTRUCTION_CACHE -#define AVOID_MEMORY_READ #endif /* __arm32__ */ @@ -167,9 +111,6 @@ SOFTWARE. # endif #define GLYPHPADBYTES 4 -#define GETLEFTBITS_ALIGNMENT 1 -#define LARGE_INSTRUCTION_CACHE -#define AVOID_MEMORY_READ #endif /* __aarch64__ */ @@ -178,12 +119,6 @@ SOFTWARE. #define IMAGE_BYTE_ORDER MSBFirst #define BITMAP_BIT_ORDER MSBFirst #define GLYPHPADBYTES 4 /* to make fb work */ -#define GETLEFTBITS_ALIGNMENT 1 /* PA forces longs to 4 */ - /* byte boundries */ -#define AVOID_MEMORY_READ -#define FAST_CONSTANT_OFFSET_MODE -#define LARGE_INSTRUCTION_CACHE -#define PLENTIFUL_REGISTERS #endif /* hpux || __hppa__ */ @@ -192,20 +127,12 @@ SOFTWARE. #define IMAGE_BYTE_ORDER MSBFirst #define BITMAP_BIT_ORDER MSBFirst #define GLYPHPADBYTES 4 -#define GETLEFTBITS_ALIGNMENT 1 /* XXX Should this be for Lynx only? */ #ifdef Lynx #define BITMAP_SCANLINE_UNIT 8 #endif -#define LARGE_INSTRUCTION_CACHE -#define FAST_CONSTANT_OFFSET_MODE -#define PLENTIFUL_REGISTERS -#define AVOID_MEMORY_READ - -#define FAST_MEMCPY - #endif /* PowerPC */ #if defined(__sh__) @@ -214,19 +141,12 @@ SOFTWARE. # define IMAGE_BYTE_ORDER MSBFirst # define BITMAP_BIT_ORDER MSBFirst # define GLYPHPADBYTES 4 -# define GETLEFTBITS_ALIGNMENT 1 #else # define IMAGE_BYTE_ORDER LSBFirst # define BITMAP_BIT_ORDER LSBFirst # define GLYPHPADBYTES 4 -# define GETLEFTBITS_ALIGNMENT 1 #endif -#define AVOID_MEMORY_READ -#define FAST_CONSTANT_OFFSET_MODE -#define LARGE_INSTRUCTION_CACHE -#define PLENTIFUL_REGISTERS - #endif /* SuperH */ @@ -248,19 +168,7 @@ SOFTWARE. # define BITMAP_BIT_ORDER MSBFirst #endif -#ifdef sparc -# define AVOID_MEMORY_READ -# define LARGE_INSTRUCTION_CACHE -# define FAST_CONSTANT_OFFSET_MODE -# define SHARED_IDCACHE -#endif - -#ifdef mc68020 -#define FAST_UNALIGNED_READS -#endif - #define GLYPHPADBYTES 4 -#define GETLEFTBITS_ALIGNMENT 1 #endif /* sun && !(i386 && SVR4) */ @@ -270,14 +178,7 @@ SOFTWARE. #define IMAGE_BYTE_ORDER MSBFirst /* Values for the RISC/6000 */ #define BITMAP_BIT_ORDER MSBFirst #define GLYPHPADBYTES 4 -#define GETLEFTBITS_ALIGNMENT 1 - -#define LARGE_INSTRUCTION_CACHE -#define FAST_CONSTANT_OFFSET_MODE -#define PLENTIFUL_REGISTERS -#define AVOID_MEMORY_READ -#define FAST_MEMCPY #endif /* AIXV3 */ #if defined(ibm032) || defined (ibm) @@ -289,7 +190,6 @@ SOFTWARE. #endif #define BITMAP_BIT_ORDER MSBFirst #define GLYPHPADBYTES 1 -#define GETLEFTBITS_ALIGNMENT 4 /* ibm pcc doesn't understand pragmas. */ #ifdef i386 @@ -303,9 +203,6 @@ SOFTWARE. #define IMAGE_BYTE_ORDER MSBFirst /* Values for Pegasus only */ #define BITMAP_BIT_ORDER MSBFirst #define GLYPHPADBYTES 4 -#define GETLEFTBITS_ALIGNMENT 1 - -#define FAST_UNALIGNED_READS #endif /* tektronix */ @@ -314,9 +211,6 @@ SOFTWARE. #define IMAGE_BYTE_ORDER MSBFirst /* Values for the MacII only */ #define BITMAP_BIT_ORDER MSBFirst #define GLYPHPADBYTES 4 -#define GETLEFTBITS_ALIGNMENT 1 - -/* might want FAST_UNALIGNED_READS for frame buffers with < 1us latency */ #endif /* macII */ @@ -326,19 +220,12 @@ SOFTWARE. # define IMAGE_BYTE_ORDER LSBFirst /* Values for the PMAX only */ # define BITMAP_BIT_ORDER LSBFirst # define GLYPHPADBYTES 4 -# define GETLEFTBITS_ALIGNMENT 1 #else # define IMAGE_BYTE_ORDER MSBFirst /* Values for the MIPS only */ # define BITMAP_BIT_ORDER MSBFirst # define GLYPHPADBYTES 4 -# define GETLEFTBITS_ALIGNMENT 1 #endif -#define AVOID_MEMORY_READ -#define FAST_CONSTANT_OFFSET_MODE -#define LARGE_INSTRUCTION_CACHE -#define PLENTIFUL_REGISTERS - #endif /* mips */ #if defined(__alpha) || defined(__alpha__) || defined(__alphaCross) @@ -355,10 +242,6 @@ SOFTWARE. # endif # define GLYPHPADBYTES 4 -# define GETLEFTBITS_ALIGNMENT 1 -# define FAST_CONSTANT_OFFSET_MODE -# define LARGE_INSTRUCTION_CACHE -# define PLENTIFUL_REGISTERS #endif /* alpha */ @@ -367,14 +250,8 @@ SOFTWARE. #define IMAGE_BYTE_ORDER MSBFirst #define BITMAP_BIT_ORDER MSBFirst #define GLYPHPADBYTES 4 -#define GETLEFTBITS_ALIGNMENT 1 #define BITMAP_SCANLINE_UNIT 8 -#define LARGE_INSTRUCTION_CACHE -#define FAST_CONSTANT_OFFSET_MODE -#define FAST_UNALIGNED_READ - -#define FAST_MEMCPY #endif /* linux/s390 */ @@ -383,14 +260,9 @@ SOFTWARE. #define IMAGE_BYTE_ORDER MSBFirst #define BITMAP_BIT_ORDER MSBFirst #define GLYPHPADBYTES 4 -#define GETLEFTBITS_ALIGNMENT 1 #define BITMAP_SCANLINE_UNIT 8 -#define LARGE_INSTRUCTION_CACHE -#define FAST_CONSTANT_OFFSET_MODE -#define FAST_UNALIGNED_READ -#define FAST_MEMCPY #endif /* linux/s390x */ @@ -408,10 +280,6 @@ SOFTWARE. # endif # define GLYPHPADBYTES 4 -# define GETLEFTBITS_ALIGNMENT 1 -# define FAST_CONSTANT_OFFSET_MODE -# define LARGE_INSTRUCTION_CACHE -# define PLENTIFUL_REGISTERS #endif /* ia64 */ @@ -429,11 +297,7 @@ SOFTWARE. # endif # define GLYPHPADBYTES 4 -# define GETLEFTBITS_ALIGNMENT 1 -# define LARGE_INSTRUCTION_CACHE -# define FAST_CONSTANT_OFFSET_MODE /* ???? */ -# define FAST_UNALIGNED_READS #endif /* AMD64 */ #ifdef stellar @@ -441,7 +305,6 @@ SOFTWARE. #define IMAGE_BYTE_ORDER MSBFirst /* Values for the stellar only*/ #define BITMAP_BIT_ORDER MSBFirst #define GLYPHPADBYTES 4 -#define GETLEFTBITS_ALIGNMENT 4 #define IMAGE_BUFSIZE (64*1024) /* * Use SysV random number generator. @@ -455,13 +318,8 @@ SOFTWARE. #define IMAGE_BYTE_ORDER MSBFirst /* Values for the OMRON only*/ #define BITMAP_BIT_ORDER MSBFirst #define GLYPHPADBYTES 4 -#define GETLEFTBITS_ALIGNMENT 1 #ifndef mc68000 -#define FAST_CONSTANT_OFFSET_MODE -#define AVOID_MEMORY_READ -#define LARGE_INSTRUCTION_CACHE -#define PLENTIFUL_REGISTERS #endif #endif /* luna */ @@ -496,12 +354,8 @@ SOFTWARE. #define GLYPHPADBYTES 4 #endif -#define GETLEFTBITS_ALIGNMENT 1 -#define AVOID_MEMORY_READ #ifdef XSVGA #define AVOID_GLYPHBLT -#define FAST_CONSTANT_OFFSET_MODE -#define FAST_MEMCPY #define NO_ONE_RECT #endif @@ -511,9 +365,7 @@ SOFTWARE. #define IMAGE_BYTE_ORDER MSBFirst #define BITMAP_BIT_ORDER MSBFirst -#define FAST_UNALIGNED_READS #define GLYPHPADBYTES 4 -#define GETLEFTBITS_ALIGNMENT 1 #endif /* linux/m68k */ @@ -522,11 +374,6 @@ SOFTWARE. #define IMAGE_BYTE_ORDER MSBFirst #define BITMAP_BIT_ORDER MSBFirst #define GLYPHPADBYTES 4 -#define GETLEFTBITS_ALIGNMENT 1 -#define AVOID_MEMORY_READ -#define FAST_CONSTANT_OFFSET_MODE -#define LARGE_INSTRUCTION_CACHE -#define PLENTIFUL_REGISTERS #endif @@ -535,7 +382,6 @@ SOFTWARE. #define IMAGE_BYTE_ORDER LSBFirst #define BITMAP_BIT_ORDER LSBFirst #define GLYPHPADBYTES 4 -#define GETLEFTBITS_ALIGNMENT 1 #endif /* size of buffer to use with GetImage, measured in bytes. There's obviously 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 */ |