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/***********************************************************
Copyright 1987, 1998 The Open Group
Permission to use, copy, modify, distribute, and sell this software and its
documentation for any purpose is hereby granted without fee, provided that
the above copyright notice appear in all copies and that both that
copyright notice and this permission notice appear in supporting
documentation.
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
Except as contained in this notice, the name of The Open Group shall not be
used in advertising or otherwise to promote the sale, use or other dealings
in this Software without prior written authorization from The Open Group.
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.
******************************************************************/
#ifndef SERVERMD_H
#define SERVERMD_H 1
/*
* 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
* in the font bitmaps (both on disk and in memory), but that access of
* the bitmaps will cause odd-address memory references. Padding to
* 2 bytes would ensure even address memory references and would
* be suitable for a 68010-class machine, but at the expense of wasted
* space in the font bitmaps. Padding to 4 bytes would be good
* for real 32 bit machines, etc. Be sure that you tell the font
* compiler what kind of padding you want because its defines are
* 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
#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 */
#ifdef __arm32__
#define IMAGE_BYTE_ORDER LSBFirst
# if defined(XF86MONOVGA) || defined(XF86VGA16) || defined(XF86MONO)
# define BITMAP_BIT_ORDER MSBFirst
# else
# define BITMAP_BIT_ORDER LSBFirst
# endif
# if defined(XF86MONOVGA) || defined(XF86VGA16)
# define BITMAP_SCANLINE_UNIT 8
# endif
#define GLYPHPADBYTES 4
#define GETLEFTBITS_ALIGNMENT 1
#define LARGE_INSTRUCTION_CACHE
#define AVOID_MEMORY_READ
#endif /* __arm32__ */
#ifdef __aarch64__
#ifdef __AARCH64EL__
#define IMAGE_BYTE_ORDER LSBFirst
#define BITMAP_BIT_ORDER LSBFirst
#endif
#ifdef __AARCH64EB__
#define IMAGE_BYTE_ORDER MSBFirst
#define BITMAP_BIT_ORDER MSBFirst
#endif
# if defined(XF86MONOVGA) || defined(XF86VGA16)
# define BITMAP_SCANLINE_UNIT 8
# endif
#define GLYPHPADBYTES 4
#define GETLEFTBITS_ALIGNMENT 1
#define LARGE_INSTRUCTION_CACHE
#define AVOID_MEMORY_READ
#endif /* __aarch64__ */
#if defined (hpux) || defined __hppa__
#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__ */
#if defined(__powerpc__) || defined(__ppc__)
#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__)
#if defined(__BIG_ENDIAN__)
# 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 */
#if (defined(sun) && (defined(__sparc) || defined(sparc))) || \
(defined(__uxp__) && (defined(sparc) || defined(mc68000))) || \
defined(__sparc__) || defined(__mc68000__)
#if defined(__sparc) || defined(__sparc__)
# if !defined(sparc)
# define sparc 1
# endif
#endif
#if defined(sun386) || defined(sun5)
# define IMAGE_BYTE_ORDER LSBFirst /* Values for the SUN only */
# define BITMAP_BIT_ORDER LSBFirst
#else
# define IMAGE_BYTE_ORDER MSBFirst /* Values for the SUN only */
# 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) */
#if defined(AIXV3)
#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)
#ifdef i386
# define IMAGE_BYTE_ORDER LSBFirst /* Value for PS/2 only */
#else
# define IMAGE_BYTE_ORDER MSBFirst /* Values for the RT only*/
#endif
#define BITMAP_BIT_ORDER MSBFirst
#define GLYPHPADBYTES 1
#define GETLEFTBITS_ALIGNMENT 4
/* ibm pcc doesn't understand pragmas. */
#ifdef i386
#define BITMAP_SCANLINE_UNIT 8
#endif
#endif /* ibm */
#if defined (M4310) || defined(M4315) || defined(M4317) || defined(M4319) || defined(M4330)
#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 */
#ifdef macII
#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 */
#if (defined(mips) || defined(__mips)) && !defined(sgi)
#if defined(MIPSEL) || defined(__MIPSEL__)
# 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)
# define IMAGE_BYTE_ORDER LSBFirst /* Values for the Alpha only */
# if defined(XF86MONOVGA) || defined(XF86VGA16) || defined(XF86MONO)
# define BITMAP_BIT_ORDER MSBFirst
# else
# define BITMAP_BIT_ORDER LSBFirst
# endif
# if defined(XF86MONOVGA) || defined(XF86VGA16)
# define BITMAP_SCANLINE_UNIT 8
# endif
# define GLYPHPADBYTES 4
# define GETLEFTBITS_ALIGNMENT 1
# define FAST_CONSTANT_OFFSET_MODE
# define LARGE_INSTRUCTION_CACHE
# define PLENTIFUL_REGISTERS
#endif /* alpha */
#if defined (linux) && defined (__s390__)
#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 */
#if defined (linux) && defined (__s390x__)
#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 */
#if defined(__ia64__) || defined(ia64)
# define IMAGE_BYTE_ORDER LSBFirst
# if defined(XF86MONOVGA) || defined(XF86VGA16) || defined(XF86MONO)
# define BITMAP_BIT_ORDER MSBFirst
# else
# define BITMAP_BIT_ORDER LSBFirst
# endif
# if defined(XF86MONOVGA) || defined(XF86VGA16)
# define BITMAP_SCANLINE_UNIT 8
# endif
# define GLYPHPADBYTES 4
# define GETLEFTBITS_ALIGNMENT 1
# define FAST_CONSTANT_OFFSET_MODE
# define LARGE_INSTRUCTION_CACHE
# define PLENTIFUL_REGISTERS
#endif /* ia64 */
#if defined(__amd64__) || defined(amd64) || defined(__amd64)
# define IMAGE_BYTE_ORDER LSBFirst
# if defined(XF86MONOVGA) || defined(XF86VGA16) || defined(XF86MONO)
# define BITMAP_BIT_ORDER MSBFirst
# else
# define BITMAP_BIT_ORDER LSBFirst
# endif
# if defined(XF86MONOVGA) || defined(XF86VGA16)
# define BITMAP_SCANLINE_UNIT 8
# 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
#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.
*/
#define random rand
#endif /* stellar */
#ifdef luna
#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 */
#if (defined(SVR4) && defined(i386)) || \
defined(__alpha__) || defined(__alpha) || \
defined(__i386__) || defined(__i386) || \
defined(__UNIXOS2__) || \
defined(__OS2ELF__) || \
defined(__QNX__) || \
defined(__s390x__) || defined(__s390__)
#ifndef IMAGE_BYTE_ORDER
#define IMAGE_BYTE_ORDER LSBFirst
#endif
#ifndef BITMAP_BIT_ORDER
# if defined(XF86MONOVGA) || defined(XF86VGA16) || defined(XF86MONO)
# define BITMAP_BIT_ORDER MSBFirst
# else
# define BITMAP_BIT_ORDER LSBFirst
# endif
#endif
#ifndef BITMAP_SCANLINE_UNIT
# if defined(XF86MONOVGA) || defined(XF86VGA16)
# define BITMAP_SCANLINE_UNIT 8
# endif
#endif
#ifndef GLYPHPADBYTES
#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
#endif /* SVR4 / BSD / i386 */
#if defined (linux) && defined (__mc68000__)
#define IMAGE_BYTE_ORDER MSBFirst
#define BITMAP_BIT_ORDER MSBFirst
#define FAST_UNALIGNED_READS
#define GLYPHPADBYTES 4
#define GETLEFTBITS_ALIGNMENT 1
#endif /* linux/m68k */
#ifdef sgi
#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
/* linux on the Compaq Itsy */
#if defined(linux) && defined(__arm__)
#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
* a trade-off between the amount of stack (or whatever ALLOCATE_LOCAL gives
* you) used and the number of times the ddx routine has to be called.
*/
#ifndef IMAGE_BUFSIZE
#define IMAGE_BUFSIZE (64*1024)
#endif
/* pad scanline to a longword */
#ifndef BITMAP_SCANLINE_UNIT
#define BITMAP_SCANLINE_UNIT 32
#endif
#ifndef BITMAP_SCANLINE_PAD
#define BITMAP_SCANLINE_PAD 32
#define LOG2_BITMAP_PAD 5
#define LOG2_BYTES_PER_SCANLINE_PAD 2
#endif
/*
* This returns the number of padding units, for depth d and width w.
* For bitmaps this can be calculated with the macros above.
* Other depths require either grovelling over the formats field of the
* screenInfo or hardwired constants.
*/
typedef struct _PaddingInfo {
int padRoundUp; /* pixels per pad unit - 1 */
int padPixelsLog2; /* log 2 (pixels per pad unit) */
int padBytesLog2; /* log 2 (bytes per pad unit) */
int notPower2; /* bitsPerPixel not a power of 2 */
int bytesPerPixel; /* only set when notPower2 is TRUE */
int bitsPerPixel; /* bits per pixel */
} PaddingInfo;
extern PaddingInfo PixmapWidthPaddingInfo[];
/* The only portable way to get the bpp from the depth is to look it up */
#define BitsPerPixel(d) (PixmapWidthPaddingInfo[d].bitsPerPixel)
#define PixmapWidthInPadUnits(w, d) \
(PixmapWidthPaddingInfo[d].notPower2 ? \
(((int)(w) * PixmapWidthPaddingInfo[d].bytesPerPixel + \
PixmapWidthPaddingInfo[d].bytesPerPixel) >> \
PixmapWidthPaddingInfo[d].padBytesLog2) : \
((int)((w) + PixmapWidthPaddingInfo[d].padRoundUp) >> \
PixmapWidthPaddingInfo[d].padPixelsLog2))
/*
* Return the number of bytes to which a scanline of the given
* depth and width will be padded.
*/
#define PixmapBytePad(w, d) \
(PixmapWidthInPadUnits(w, d) << PixmapWidthPaddingInfo[d].padBytesLog2)
#define BitmapBytePad(w) \
(((int)((w) + BITMAP_SCANLINE_PAD - 1) >> LOG2_BITMAP_PAD) << LOG2_BYTES_PER_SCANLINE_PAD)
#define PixmapWidthInPadUnitsProto(w, d) PixmapWidthInPadUnits(w, d)
#define PixmapBytePadProto(w, d) PixmapBytePad(w, d)
#define BitmapBytePadProto(w) BitmapBytePad(w)
#endif /* SERVERMD_H */