| 1 | /***********************************************************
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| 2 |
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| 3 | Copyright 1987, 1998 The Open Group
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| 4 |
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| 5 | Permission to use, copy, modify, distribute, and sell this software and its
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| 6 | documentation for any purpose is hereby granted without fee, provided that
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| 7 | the above copyright notice appear in all copies and that both that
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| 8 | copyright notice and this permission notice appear in supporting
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| 9 | documentation.
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| 10 |
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| 11 | The above copyright notice and this permission notice shall be included in
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| 12 | all copies or substantial portions of the Software.
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| 13 |
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| 14 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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| 15 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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| 16 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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| 17 | OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
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| 18 | AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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| 19 | CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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| 20 |
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| 21 | Except as contained in this notice, the name of The Open Group shall not be
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| 22 | used in advertising or otherwise to promote the sale, use or other dealings
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| 23 | in this Software without prior written authorization from The Open Group.
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| 24 |
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| 25 |
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| 26 | Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts.
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| 27 |
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| 28 | All Rights Reserved
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| 29 |
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| 30 | Permission to use, copy, modify, and distribute this software and its
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| 31 | documentation for any purpose and without fee is hereby granted,
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| 32 | provided that the above copyright notice appear in all copies and that
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| 33 | both that copyright notice and this permission notice appear in
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| 34 | supporting documentation, and that the name of Digital not be
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| 35 | used in advertising or publicity pertaining to distribution of the
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| 36 | software without specific, written prior permission.
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| 37 |
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| 38 | DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
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| 39 | ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
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| 40 | DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
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| 41 | ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
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| 42 | WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
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| 43 | ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
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| 44 | SOFTWARE.
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| 45 |
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| 46 | ******************************************************************/
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| 47 |
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| 48 | #ifndef SERVERMD_H
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| 49 | #define SERVERMD_H 1
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| 50 |
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| 51 | /*
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| 52 | * Machine dependent values:
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| 53 | * GLYPHPADBYTES should be chosen with consideration for the space-time
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| 54 | * trade-off. Padding to 0 bytes means that there is no wasted space
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| 55 | * in the font bitmaps (both on disk and in memory), but that access of
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| 56 | * the bitmaps will cause odd-address memory references. Padding to
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| 57 | * 2 bytes would ensure even address memory references and would
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| 58 | * be suitable for a 68010-class machine, but at the expense of wasted
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| 59 | * space in the font bitmaps. Padding to 4 bytes would be good
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| 60 | * for real 32 bit machines, etc. Be sure that you tell the font
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| 61 | * compiler what kind of padding you want because its defines are
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| 62 | * kept separate from this. See server/include/font.h for how
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| 63 | * GLYPHPADBYTES is used.
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| 64 | *
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| 65 | * Along with this, you should choose an appropriate value for
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| 66 | * GETLEFTBITS_ALIGNMENT, which is used in ddx/mfb/maskbits.h. This
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| 67 | * constant choses what kind of memory references are guarenteed during
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| 68 | * font access; either 1, 2 or 4, for byte, word or longword access,
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| 69 | * respectively. For instance, if you have decided to to have
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| 70 | * GLYPHPADBYTES == 4, then it is pointless for you to have a
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| 71 | * GETLEFTBITS_ALIGNMENT > 1, because the padding of the fonts has already
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| 72 | * guarenteed you that your fonts are longword aligned. On the other
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| 73 | * hand, even if you have chosen GLYPHPADBYTES == 1 to save space, you may
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| 74 | * also decide that the computing involved in aligning the pointer is more
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| 75 | * costly than an odd-address access; you choose GETLEFTBITS_ALIGNMENT == 1.
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| 76 | *
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| 77 | * Next, choose the tuning parameters which are appropriate for your
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| 78 | * hardware; these modify the behaviour of the raw frame buffer code
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| 79 | * in ddx/mfb and ddx/cfb. Defining these incorrectly will not cause
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| 80 | * the server to run incorrectly, but defining these correctly will
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| 81 | * cause some noticeable speed improvements:
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| 82 | *
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| 83 | * AVOID_MEMORY_READ - (8-bit cfb only)
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| 84 | * When stippling pixels on the screen (polytext and pushpixels),
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| 85 | * don't read long words from the display and mask in the
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| 86 | * appropriate values. Rather, perform multiple byte/short/long
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| 87 | * writes as appropriate. This option uses many more instructions
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| 88 | * but runs much faster when the destination is much slower than
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| 89 | * the CPU and at least 1 level of write buffer is availible (2
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| 90 | * is much better). Defined currently for SPARC and MIPS.
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| 91 | *
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| 92 | * FAST_CONSTANT_OFFSET_MODE - (cfb and mfb)
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| 93 | * This define is used on machines which have no auto-increment
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| 94 | * addressing mode, but do have an effectively free constant-offset
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| 95 | * addressing mode. Currently defined for MIPS and SPARC, even though
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| 96 | * I remember the cg6 as performing better without it (cg3 definitely
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| 97 | * performs better with it).
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| 98 | *
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| 99 | * LARGE_INSTRUCTION_CACHE -
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| 100 | * This define increases the number of times some loops are
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| 101 | * unrolled. On 68020 machines (with 256 bytes of i-cache),
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| 102 | * this define will slow execution down as instructions miss
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| 103 | * the cache frequently. On machines with real i-caches, this
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| 104 | * reduces loop overhead, causing a slight performance improvement.
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| 105 | * Currently defined for MIPS and SPARC
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| 106 | *
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| 107 | * FAST_UNALIGNED_READS -
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| 108 | * For machines with more memory bandwidth than CPU, this
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| 109 | * define uses unaligned reads for 8-bit BitBLT instead of doing
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| 110 | * aligned reads and combining the results with shifts and
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| 111 | * logical-ors. Currently defined for 68020 and vax.
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| 112 | * PLENTIFUL_REGISTERS -
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| 113 | * For machines with > 20 registers. Currently used for
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| 114 | * unrolling the text painting code a bit more. Currently
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| 115 | * defined for MIPS.
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| 116 | * SHARED_IDCACHE -
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| 117 | * For non-Harvard RISC machines, those which share the same
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| 118 | * CPU memory bus for instructions and data. This unrolls some
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| 119 | * solid fill loops which are otherwise best left rolled up.
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| 120 | * Currently defined for SPARC.
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| 121 | */
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| 122 |
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| 123 | #ifdef vax
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| 124 |
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| 125 | #define IMAGE_BYTE_ORDER LSBFirst /* Values for the VAX only */
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| 126 | #define BITMAP_BIT_ORDER LSBFirst
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| 127 | #define GLYPHPADBYTES 1
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| 128 | #define GETLEFTBITS_ALIGNMENT 4
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| 129 | #define FAST_UNALIGNED_READS
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| 130 |
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| 131 | #endif /* vax */
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| 132 |
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| 133 | #ifdef __arm32__
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| 134 |
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| 135 | #define IMAGE_BYTE_ORDER LSBFirst
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| 136 |
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| 137 | # if defined(XF86MONOVGA) || defined(XF86VGA16) || defined(XF86MONO)
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| 138 | # define BITMAP_BIT_ORDER MSBFirst
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| 139 | # else
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| 140 | # define BITMAP_BIT_ORDER LSBFirst
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| 141 | # endif
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| 142 |
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| 143 | # if defined(XF86MONOVGA) || defined(XF86VGA16)
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| 144 | # define BITMAP_SCANLINE_UNIT 8
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| 145 | # endif
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| 146 |
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| 147 | #define GLYPHPADBYTES 4
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| 148 | #define GETLEFTBITS_ALIGNMENT 1
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| 149 | #define LARGE_INSTRUCTION_CACHE
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| 150 | #define AVOID_MEMORY_READ
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| 151 |
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| 152 | #endif /* __arm32__ */
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| 153 |
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| 154 | #if defined (hpux) || defined __hppa__
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| 155 |
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| 156 | #define IMAGE_BYTE_ORDER MSBFirst
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| 157 | #define BITMAP_BIT_ORDER MSBFirst
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| 158 | #define GLYPHPADBYTES 4 /* to make fb work */
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| 159 | #define GETLEFTBITS_ALIGNMENT 1 /* PA forces longs to 4 */
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| 160 | /* byte boundries */
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| 161 | #define AVOID_MEMORY_READ
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| 162 | #define FAST_CONSTANT_OFFSET_MODE
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| 163 | #define LARGE_INSTRUCTION_CACHE
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| 164 | #define PLENTIFUL_REGISTERS
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| 165 |
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| 166 | #endif /* hpux || __hppa__ */
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| 167 |
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| 168 | #if defined(__powerpc__) || defined(__ppc__)
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| 169 |
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| 170 | #define IMAGE_BYTE_ORDER MSBFirst
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| 171 | #define BITMAP_BIT_ORDER MSBFirst
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| 172 | #define GLYPHPADBYTES 4
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| 173 | #define GETLEFTBITS_ALIGNMENT 1
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| 174 |
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| 175 | /* XXX Should this be for Lynx only? */
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| 176 | #ifdef Lynx
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| 177 | #define BITMAP_SCANLINE_UNIT 8
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| 178 | #endif
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| 179 |
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| 180 | #define LARGE_INSTRUCTION_CACHE
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| 181 | #define FAST_CONSTANT_OFFSET_MODE
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| 182 | #define PLENTIFUL_REGISTERS
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| 183 | #define AVOID_MEMORY_READ
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| 184 |
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| 185 | #define FAST_MEMCPY
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| 186 |
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| 187 | #endif /* PowerPC */
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| 188 |
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| 189 | #if defined(__sh__)
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| 190 |
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| 191 | #if defined(__BIG_ENDIAN__)
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| 192 | # define IMAGE_BYTE_ORDER MSBFirst
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| 193 | # define BITMAP_BIT_ORDER MSBFirst
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| 194 | # define GLYPHPADBYTES 4
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| 195 | # define GETLEFTBITS_ALIGNMENT 1
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| 196 | #else
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| 197 | # define IMAGE_BYTE_ORDER LSBFirst
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| 198 | # define BITMAP_BIT_ORDER LSBFirst
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| 199 | # define GLYPHPADBYTES 4
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| 200 | # define GETLEFTBITS_ALIGNMENT 1
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| 201 | #endif
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| 202 |
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| 203 | #define AVOID_MEMORY_READ
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| 204 | #define FAST_CONSTANT_OFFSET_MODE
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| 205 | #define LARGE_INSTRUCTION_CACHE
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| 206 | #define PLENTIFUL_REGISTERS
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| 207 |
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| 208 | #endif /* SuperH */
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| 209 |
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| 210 |
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| 211 | #if (defined(sun) && (defined(__sparc) || defined(sparc))) || \
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| 212 | (defined(__uxp__) && (defined(sparc) || defined(mc68000))) || \
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| 213 | defined(__sparc__) || defined(__mc68000__)
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| 214 |
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| 215 | #if defined(__sparc) || defined(__sparc__)
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| 216 | # if !defined(sparc)
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| 217 | # define sparc 1
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| 218 | # endif
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| 219 | #endif
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| 220 |
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| 221 | #if defined(sun386) || defined(sun5)
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| 222 | # define IMAGE_BYTE_ORDER LSBFirst /* Values for the SUN only */
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| 223 | # define BITMAP_BIT_ORDER LSBFirst
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| 224 | #else
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| 225 | # define IMAGE_BYTE_ORDER MSBFirst /* Values for the SUN only */
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| 226 | # define BITMAP_BIT_ORDER MSBFirst
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| 227 | #endif
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| 228 |
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| 229 | #ifdef sparc
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| 230 | # define AVOID_MEMORY_READ
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| 231 | # define LARGE_INSTRUCTION_CACHE
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| 232 | # define FAST_CONSTANT_OFFSET_MODE
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| 233 | # define SHARED_IDCACHE
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| 234 | #endif
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| 235 |
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| 236 | #ifdef mc68020
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| 237 | #define FAST_UNALIGNED_READS
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| 238 | #endif
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| 239 |
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| 240 | #define GLYPHPADBYTES 4
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| 241 | #define GETLEFTBITS_ALIGNMENT 1
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| 242 |
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| 243 | #endif /* sun && !(i386 && SVR4) */
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| 244 |
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| 245 |
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| 246 | #if defined(AIXV3)
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| 247 |
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| 248 | #define IMAGE_BYTE_ORDER MSBFirst /* Values for the RISC/6000 */
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| 249 | #define BITMAP_BIT_ORDER MSBFirst
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| 250 | #define GLYPHPADBYTES 4
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| 251 | #define GETLEFTBITS_ALIGNMENT 1
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| 252 |
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| 253 | #define LARGE_INSTRUCTION_CACHE
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| 254 | #define FAST_CONSTANT_OFFSET_MODE
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| 255 | #define PLENTIFUL_REGISTERS
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| 256 | #define AVOID_MEMORY_READ
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| 257 |
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| 258 | #define FAST_MEMCPY
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| 259 | #endif /* AIXV3 */
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| 260 |
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| 261 | #if defined(ibm032) || defined (ibm)
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| 262 |
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| 263 | #ifdef __i386__
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| 264 | # define IMAGE_BYTE_ORDER LSBFirst /* Value for PS/2 only */
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| 265 | #else
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| 266 | # define IMAGE_BYTE_ORDER MSBFirst /* Values for the RT only*/
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| 267 | #endif
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| 268 | #define BITMAP_BIT_ORDER MSBFirst
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| 269 | #define GLYPHPADBYTES 1
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| 270 | #define GETLEFTBITS_ALIGNMENT 4
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| 271 | /* ibm pcc doesn't understand pragmas. */
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| 272 |
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| 273 | #ifdef __i386__
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| 274 | #define BITMAP_SCANLINE_UNIT 8
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| 275 | #endif
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| 276 |
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| 277 | #endif /* ibm */
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| 278 |
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| 279 | #if defined (M4310) || defined(M4315) || defined(M4317) || defined(M4319) || defined(M4330)
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| 280 |
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| 281 | #define IMAGE_BYTE_ORDER MSBFirst /* Values for Pegasus only */
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| 282 | #define BITMAP_BIT_ORDER MSBFirst
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| 283 | #define GLYPHPADBYTES 4
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| 284 | #define GETLEFTBITS_ALIGNMENT 1
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| 285 |
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| 286 | #define FAST_UNALIGNED_READS
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| 287 |
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| 288 | #endif /* tektronix */
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| 289 |
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| 290 | #ifdef macII
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| 291 |
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| 292 | #define IMAGE_BYTE_ORDER MSBFirst /* Values for the MacII only */
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| 293 | #define BITMAP_BIT_ORDER MSBFirst
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| 294 | #define GLYPHPADBYTES 4
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| 295 | #define GETLEFTBITS_ALIGNMENT 1
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| 296 |
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| 297 | /* might want FAST_UNALIGNED_READS for frame buffers with < 1us latency */
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| 298 |
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| 299 | #endif /* macII */
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| 300 |
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| 301 | #if (defined(mips) || defined(__mips)) && !defined(sgi)
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| 302 |
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| 303 | #if defined(MIPSEL) || defined(__MIPSEL__)
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| 304 | # define IMAGE_BYTE_ORDER LSBFirst /* Values for the PMAX only */
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| 305 | # define BITMAP_BIT_ORDER LSBFirst
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| 306 | # define GLYPHPADBYTES 4
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| 307 | # define GETLEFTBITS_ALIGNMENT 1
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| 308 | #else
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| 309 | # define IMAGE_BYTE_ORDER MSBFirst /* Values for the MIPS only */
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| 310 | # define BITMAP_BIT_ORDER MSBFirst
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| 311 | # define GLYPHPADBYTES 4
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| 312 | # define GETLEFTBITS_ALIGNMENT 1
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| 313 | #endif
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| 314 |
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| 315 | #define AVOID_MEMORY_READ
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| 316 | #define FAST_CONSTANT_OFFSET_MODE
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| 317 | #define LARGE_INSTRUCTION_CACHE
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| 318 | #define PLENTIFUL_REGISTERS
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| 319 |
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| 320 | #endif /* mips */
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| 321 |
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| 322 | #if defined(__alpha) || defined(__alpha__) || defined(__alphaCross)
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| 323 | # define IMAGE_BYTE_ORDER LSBFirst /* Values for the Alpha only */
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| 324 |
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| 325 | # if defined(XF86MONOVGA) || defined(XF86VGA16) || defined(XF86MONO)
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| 326 | # define BITMAP_BIT_ORDER MSBFirst
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| 327 | # else
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| 328 | # define BITMAP_BIT_ORDER LSBFirst
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| 329 | # endif
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| 330 |
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| 331 | # if defined(XF86MONOVGA) || defined(XF86VGA16)
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| 332 | # define BITMAP_SCANLINE_UNIT 8
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| 333 | # endif
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| 334 |
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| 335 | # define GLYPHPADBYTES 4
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| 336 | # define GETLEFTBITS_ALIGNMENT 1
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| 337 | # define FAST_CONSTANT_OFFSET_MODE
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| 338 | # define LARGE_INSTRUCTION_CACHE
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| 339 | # define PLENTIFUL_REGISTERS
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| 340 |
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| 341 | #endif /* alpha */
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| 342 |
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| 343 | #if defined (linux) && defined (__s390__)
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| 344 |
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| 345 | #define IMAGE_BYTE_ORDER MSBFirst
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| 346 | #define BITMAP_BIT_ORDER MSBFirst
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| 347 | #define GLYPHPADBYTES 4
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| 348 | #define GETLEFTBITS_ALIGNMENT 1
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| 349 |
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| 350 | #define BITMAP_SCANLINE_UNIT 8
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| 351 | #define LARGE_INSTRUCTION_CACHE
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| 352 | #define FAST_CONSTANT_OFFSET_MODE
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| 353 | #define FAST_UNALIGNED_READ
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| 354 |
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| 355 | #define FAST_MEMCPY
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| 356 |
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| 357 | #endif /* linux/s390 */
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| 358 |
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| 359 | #if defined (linux) && defined (__s390x__)
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| 360 |
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| 361 | #define IMAGE_BYTE_ORDER MSBFirst
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| 362 | #define BITMAP_BIT_ORDER MSBFirst
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| 363 | #define GLYPHPADBYTES 4
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| 364 | #define GETLEFTBITS_ALIGNMENT 1
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| 365 |
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| 366 | #define BITMAP_SCANLINE_UNIT 8
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| 367 | #define LARGE_INSTRUCTION_CACHE
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| 368 | #define FAST_CONSTANT_OFFSET_MODE
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| 369 | #define FAST_UNALIGNED_READ
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| 370 |
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| 371 | #define FAST_MEMCPY
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| 372 | #endif /* linux/s390x */
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| 373 |
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| 374 |
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| 375 | #if defined(__ia64__) || defined(ia64)
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| 376 | # define IMAGE_BYTE_ORDER LSBFirst
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| 377 |
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| 378 | # if defined(XF86MONOVGA) || defined(XF86VGA16) || defined(XF86MONO)
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| 379 | # define BITMAP_BIT_ORDER MSBFirst
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| 380 | # else
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| 381 | # define BITMAP_BIT_ORDER LSBFirst
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| 382 | # endif
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| 383 |
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| 384 | # if defined(XF86MONOVGA) || defined(XF86VGA16)
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| 385 | # define BITMAP_SCANLINE_UNIT 8
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| 386 | # endif
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| 387 |
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| 388 | # define GLYPHPADBYTES 4
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| 389 | # define GETLEFTBITS_ALIGNMENT 1
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| 390 | # define FAST_CONSTANT_OFFSET_MODE
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| 391 | # define LARGE_INSTRUCTION_CACHE
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| 392 | # define PLENTIFUL_REGISTERS
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| 393 |
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| 394 | #endif /* ia64 */
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| 395 |
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| 396 | #if defined(__amd64__) || defined(amd64) || defined(__amd64) || defined(__x86_64__)
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| 397 | # define IMAGE_BYTE_ORDER LSBFirst
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| 398 |
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| 399 | # if defined(XF86MONOVGA) || defined(XF86VGA16) || defined(XF86MONO)
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| 400 | # define BITMAP_BIT_ORDER MSBFirst
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| 401 | # else
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| 402 | # define BITMAP_BIT_ORDER LSBFirst
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| 403 | # endif
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| 404 |
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| 405 | # if defined(XF86MONOVGA) || defined(XF86VGA16)
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| 406 | # define BITMAP_SCANLINE_UNIT 8
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| 407 | # endif
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| 408 |
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| 409 | # define GLYPHPADBYTES 4
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| 410 | # define GETLEFTBITS_ALIGNMENT 1
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| 411 | # define LARGE_INSTRUCTION_CACHE
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| 412 | # define FAST_CONSTANT_OFFSET_MODE
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| 413 | /* ???? */
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| 414 | # define FAST_UNALIGNED_READS
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| 415 | #endif /* AMD64 */
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| 416 |
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| 417 | #ifdef stellar
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| 418 |
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| 419 | #define IMAGE_BYTE_ORDER MSBFirst /* Values for the stellar only*/
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| 420 | #define BITMAP_BIT_ORDER MSBFirst
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| 421 | #define GLYPHPADBYTES 4
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| 422 | #define GETLEFTBITS_ALIGNMENT 4
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| 423 | #define IMAGE_BUFSIZE (64*1024)
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| 424 | /*
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| 425 | * Use SysV random number generator.
|
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| 426 | */
|
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| 427 | #define random rand
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| 428 |
|
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| 429 | #endif /* stellar */
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| 430 |
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| 431 | #ifdef luna
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| 432 |
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| 433 | #define IMAGE_BYTE_ORDER MSBFirst /* Values for the OMRON only*/
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| 434 | #define BITMAP_BIT_ORDER MSBFirst
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| 435 | #define GLYPHPADBYTES 4
|
|---|
| 436 | #define GETLEFTBITS_ALIGNMENT 1
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|---|
| 437 |
|
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| 438 | #ifndef mc68000
|
|---|
| 439 | #define FAST_CONSTANT_OFFSET_MODE
|
|---|
| 440 | #define AVOID_MEMORY_READ
|
|---|
| 441 | #define LARGE_INSTRUCTION_CACHE
|
|---|
| 442 | #define PLENTIFUL_REGISTERS
|
|---|
| 443 | #endif
|
|---|
| 444 |
|
|---|
| 445 | #endif /* luna */
|
|---|
| 446 |
|
|---|
| 447 | #if (defined(SVR4) && (defined(__i386__) || (defined(__i386)))) || \
|
|---|
| 448 | defined(__alpha__) || defined(__alpha) || \
|
|---|
| 449 | defined(__i386__) || defined(__QNX__) || \
|
|---|
| 450 | defined(__s390x__) || defined(__s390__)
|
|---|
| 451 |
|
|---|
| 452 | #ifndef IMAGE_BYTE_ORDER
|
|---|
| 453 | #define IMAGE_BYTE_ORDER LSBFirst
|
|---|
| 454 | #endif
|
|---|
| 455 |
|
|---|
| 456 | #ifndef BITMAP_BIT_ORDER
|
|---|
| 457 | # if defined(XF86MONOVGA) || defined(XF86VGA16) || defined(XF86MONO)
|
|---|
| 458 | # define BITMAP_BIT_ORDER MSBFirst
|
|---|
| 459 | # else
|
|---|
| 460 | # define BITMAP_BIT_ORDER LSBFirst
|
|---|
| 461 | # endif
|
|---|
| 462 | #endif
|
|---|
| 463 |
|
|---|
| 464 | #ifndef BITMAP_SCANLINE_UNIT
|
|---|
| 465 | # if defined(XF86MONOVGA) || defined(XF86VGA16)
|
|---|
| 466 | # define BITMAP_SCANLINE_UNIT 8
|
|---|
| 467 | # endif
|
|---|
| 468 | #endif
|
|---|
| 469 |
|
|---|
| 470 | #ifndef GLYPHPADBYTES
|
|---|
| 471 | #define GLYPHPADBYTES 4
|
|---|
| 472 | #endif
|
|---|
| 473 |
|
|---|
| 474 | #define GETLEFTBITS_ALIGNMENT 1
|
|---|
| 475 | #define AVOID_MEMORY_READ
|
|---|
| 476 | #ifdef XSVGA
|
|---|
| 477 | #define AVOID_GLYPHBLT
|
|---|
| 478 | #define FAST_CONSTANT_OFFSET_MODE
|
|---|
| 479 | #define FAST_MEMCPY
|
|---|
| 480 | #define NO_ONE_RECT
|
|---|
| 481 | #endif
|
|---|
| 482 |
|
|---|
| 483 | #endif /* SVR4 / BSD / i386 */
|
|---|
| 484 |
|
|---|
| 485 | #if defined (linux) && defined (__mc68000__)
|
|---|
| 486 |
|
|---|
| 487 | #define IMAGE_BYTE_ORDER MSBFirst
|
|---|
| 488 | #define BITMAP_BIT_ORDER MSBFirst
|
|---|
| 489 | #define FAST_UNALIGNED_READS
|
|---|
| 490 | #define GLYPHPADBYTES 4
|
|---|
| 491 | #define GETLEFTBITS_ALIGNMENT 1
|
|---|
| 492 |
|
|---|
| 493 | #endif /* linux/m68k */
|
|---|
| 494 |
|
|---|
| 495 | #ifdef sgi
|
|---|
| 496 |
|
|---|
| 497 | #define IMAGE_BYTE_ORDER MSBFirst
|
|---|
| 498 | #define BITMAP_BIT_ORDER MSBFirst
|
|---|
| 499 | #define GLYPHPADBYTES 4
|
|---|
| 500 | #define GETLEFTBITS_ALIGNMENT 1
|
|---|
| 501 | #define AVOID_MEMORY_READ
|
|---|
| 502 | #define FAST_CONSTANT_OFFSET_MODE
|
|---|
| 503 | #define LARGE_INSTRUCTION_CACHE
|
|---|
| 504 | #define PLENTIFUL_REGISTERS
|
|---|
| 505 |
|
|---|
| 506 | #endif
|
|---|
| 507 |
|
|---|
| 508 | /* linux on the Compaq Itsy */
|
|---|
| 509 | #if defined(linux) && defined(__arm__)
|
|---|
| 510 | #define IMAGE_BYTE_ORDER LSBFirst
|
|---|
| 511 | #define BITMAP_BIT_ORDER LSBFirst
|
|---|
| 512 | #define GLYPHPADBYTES 4
|
|---|
| 513 | #define GETLEFTBITS_ALIGNMENT 1
|
|---|
| 514 | #endif
|
|---|
| 515 |
|
|---|
| 516 | /* linux on IBM S/390 */
|
|---|
| 517 | #if defined (linux) && defined (__s390__)
|
|---|
| 518 | #define IMAGE_BYTE_ORDER MSBFirst
|
|---|
| 519 | #define BITMAP_BIT_ORDER MSBFirst
|
|---|
| 520 | #define GLYPHPADBYTES 4
|
|---|
| 521 | #define GETLEFTBITS_ALIGNMENT 1
|
|---|
| 522 | #endif /* linux/s390 */
|
|---|
| 523 |
|
|---|
| 524 | /* size of buffer to use with GetImage, measured in bytes. There's obviously
|
|---|
| 525 | * a trade-off between the amount of stack (or whatever ALLOCATE_LOCAL gives
|
|---|
| 526 | * you) used and the number of times the ddx routine has to be called.
|
|---|
| 527 | */
|
|---|
| 528 | #ifndef IMAGE_BUFSIZE
|
|---|
| 529 | #define IMAGE_BUFSIZE (64*1024)
|
|---|
| 530 | #endif
|
|---|
| 531 |
|
|---|
| 532 | /* pad scanline to a longword */
|
|---|
| 533 | #ifndef BITMAP_SCANLINE_UNIT
|
|---|
| 534 | #define BITMAP_SCANLINE_UNIT 32
|
|---|
| 535 | #endif
|
|---|
| 536 |
|
|---|
| 537 | #ifndef BITMAP_SCANLINE_PAD
|
|---|
| 538 | #define BITMAP_SCANLINE_PAD 32
|
|---|
| 539 | #define LOG2_BITMAP_PAD 5
|
|---|
| 540 | #define LOG2_BYTES_PER_SCANLINE_PAD 2
|
|---|
| 541 | #endif
|
|---|
| 542 |
|
|---|
| 543 | /*
|
|---|
| 544 | * This returns the number of padding units, for depth d and width w.
|
|---|
| 545 | * For bitmaps this can be calculated with the macros above.
|
|---|
| 546 | * Other depths require either grovelling over the formats field of the
|
|---|
| 547 | * screenInfo or hardwired constants.
|
|---|
| 548 | */
|
|---|
| 549 |
|
|---|
| 550 | typedef struct _PaddingInfo {
|
|---|
| 551 | int padRoundUp; /* pixels per pad unit - 1 */
|
|---|
| 552 | int padPixelsLog2; /* log 2 (pixels per pad unit) */
|
|---|
| 553 | int padBytesLog2; /* log 2 (bytes per pad unit) */
|
|---|
| 554 | int notPower2; /* bitsPerPixel not a power of 2 */
|
|---|
| 555 | int bytesPerPixel; /* only set when notPower2 is TRUE */
|
|---|
| 556 | int bitsPerPixel; /* bits per pixel */
|
|---|
| 557 | } PaddingInfo;
|
|---|
| 558 | extern PaddingInfo PixmapWidthPaddingInfo[];
|
|---|
| 559 |
|
|---|
| 560 | /* The only portable way to get the bpp from the depth is to look it up */
|
|---|
| 561 | #define BitsPerPixel(d) (PixmapWidthPaddingInfo[d].bitsPerPixel)
|
|---|
| 562 |
|
|---|
| 563 | #define PixmapWidthInPadUnits(w, d) \
|
|---|
| 564 | (PixmapWidthPaddingInfo[d].notPower2 ? \
|
|---|
| 565 | (((int)(w) * PixmapWidthPaddingInfo[d].bytesPerPixel + \
|
|---|
| 566 | PixmapWidthPaddingInfo[d].bytesPerPixel) >> \
|
|---|
| 567 | PixmapWidthPaddingInfo[d].padBytesLog2) : \
|
|---|
| 568 | ((int)((w) + PixmapWidthPaddingInfo[d].padRoundUp) >> \
|
|---|
| 569 | PixmapWidthPaddingInfo[d].padPixelsLog2))
|
|---|
| 570 |
|
|---|
| 571 | /*
|
|---|
| 572 | * Return the number of bytes to which a scanline of the given
|
|---|
| 573 | * depth and width will be padded.
|
|---|
| 574 | */
|
|---|
| 575 | #define PixmapBytePad(w, d) \
|
|---|
| 576 | (PixmapWidthInPadUnits(w, d) << PixmapWidthPaddingInfo[d].padBytesLog2)
|
|---|
| 577 |
|
|---|
| 578 | #define BitmapBytePad(w) \
|
|---|
| 579 | (((int)((w) + BITMAP_SCANLINE_PAD - 1) >> LOG2_BITMAP_PAD) << LOG2_BYTES_PER_SCANLINE_PAD)
|
|---|
| 580 |
|
|---|
| 581 | #define PixmapWidthInPadUnitsProto(w, d) PixmapWidthInPadUnits(w, d)
|
|---|
| 582 | #define PixmapBytePadProto(w, d) PixmapBytePad(w, d)
|
|---|
| 583 | #define BitmapBytePadProto(w) BitmapBytePad(w)
|
|---|
| 584 |
|
|---|
| 585 | #endif /* SERVERMD_H */
|
|---|
