| 1 | /* $XFree86: xc/programs/Xserver/include/servermd.h,v 3.56tsi Exp $ */
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| 2 | /***********************************************************
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| 3 |
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| 4 | Copyright 1987, 1998 The Open Group
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| 5 |
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| 6 | Permission to use, copy, modify, distribute, and sell this software and its
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| 7 | documentation for any purpose is hereby granted without fee, provided that
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| 8 | the above copyright notice appear in all copies and that both that
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| 9 | copyright notice and this permission notice appear in supporting
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| 10 | documentation.
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| 11 |
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| 12 | The above copyright notice and this permission notice shall be included in
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| 13 | all copies or substantial portions of the Software.
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| 14 |
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| 15 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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| 16 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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| 17 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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| 18 | OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
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| 19 | AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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| 20 | CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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| 21 |
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| 22 | Except as contained in this notice, the name of The Open Group shall not be
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| 23 | used in advertising or otherwise to promote the sale, use or other dealings
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| 24 | in this Software without prior written authorization from The Open Group.
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| 25 |
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| 26 |
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| 27 | Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts.
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| 28 |
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| 29 | All Rights Reserved
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| 30 |
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| 31 | Permission to use, copy, modify, and distribute this software and its
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| 32 | documentation for any purpose and without fee is hereby granted,
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| 33 | provided that the above copyright notice appear in all copies and that
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| 34 | both that copyright notice and this permission notice appear in
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| 35 | supporting documentation, and that the name of Digital not be
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| 36 | used in advertising or publicity pertaining to distribution of the
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| 37 | software without specific, written prior permission.
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| 38 |
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| 39 | DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
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| 40 | ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
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| 41 | DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
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| 42 | ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
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| 43 | WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
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| 44 | ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
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| 45 | SOFTWARE.
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| 46 |
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| 47 | ******************************************************************/
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| 48 | /* $Xorg: servermd.h,v 1.3 2000/08/17 19:53:31 cpqbld Exp $ */
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| 49 | /* $XdotOrg: xc/programs/Xserver/include/servermd.h,v 1.4 2005/05/21 07:46:38 alanc Exp $ */
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| 50 |
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| 51 | #ifndef SERVERMD_H
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| 52 | #define SERVERMD_H 1
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| 53 |
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| 54 | /*
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| 55 | * Machine dependent values:
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| 56 | * GLYPHPADBYTES should be chosen with consideration for the space-time
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| 57 | * trade-off. Padding to 0 bytes means that there is no wasted space
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| 58 | * in the font bitmaps (both on disk and in memory), but that access of
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| 59 | * the bitmaps will cause odd-address memory references. Padding to
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| 60 | * 2 bytes would ensure even address memory references and would
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| 61 | * be suitable for a 68010-class machine, but at the expense of wasted
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| 62 | * space in the font bitmaps. Padding to 4 bytes would be good
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| 63 | * for real 32 bit machines, etc. Be sure that you tell the font
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| 64 | * compiler what kind of padding you want because its defines are
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| 65 | * kept separate from this. See server/include/font.h for how
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| 66 | * GLYPHPADBYTES is used.
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| 67 | *
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| 68 | * Along with this, you should choose an appropriate value for
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| 69 | * GETLEFTBITS_ALIGNMENT, which is used in ddx/mfb/maskbits.h. This
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| 70 | * constant choses what kind of memory references are guarenteed during
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| 71 | * font access; either 1, 2 or 4, for byte, word or longword access,
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| 72 | * respectively. For instance, if you have decided to to have
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| 73 | * GLYPHPADBYTES == 4, then it is pointless for you to have a
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| 74 | * GETLEFTBITS_ALIGNMENT > 1, because the padding of the fonts has already
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| 75 | * guarenteed you that your fonts are longword aligned. On the other
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| 76 | * hand, even if you have chosen GLYPHPADBYTES == 1 to save space, you may
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| 77 | * also decide that the computing involved in aligning the pointer is more
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| 78 | * costly than an odd-address access; you choose GETLEFTBITS_ALIGNMENT == 1.
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| 79 | *
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| 80 | * Next, choose the tuning parameters which are appropriate for your
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| 81 | * hardware; these modify the behaviour of the raw frame buffer code
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| 82 | * in ddx/mfb and ddx/cfb. Defining these incorrectly will not cause
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| 83 | * the server to run incorrectly, but defining these correctly will
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| 84 | * cause some noticeable speed improvements:
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| 85 | *
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| 86 | * AVOID_MEMORY_READ - (8-bit cfb only)
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| 87 | * When stippling pixels on the screen (polytext and pushpixels),
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| 88 | * don't read long words from the display and mask in the
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| 89 | * appropriate values. Rather, perform multiple byte/short/long
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| 90 | * writes as appropriate. This option uses many more instructions
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| 91 | * but runs much faster when the destination is much slower than
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| 92 | * the CPU and at least 1 level of write buffer is availible (2
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| 93 | * is much better). Defined currently for SPARC and MIPS.
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| 94 | *
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| 95 | * FAST_CONSTANT_OFFSET_MODE - (cfb and mfb)
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| 96 | * This define is used on machines which have no auto-increment
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| 97 | * addressing mode, but do have an effectively free constant-offset
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| 98 | * addressing mode. Currently defined for MIPS and SPARC, even though
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| 99 | * I remember the cg6 as performing better without it (cg3 definitely
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| 100 | * performs better with it).
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| 101 | *
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| 102 | * LARGE_INSTRUCTION_CACHE -
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| 103 | * This define increases the number of times some loops are
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| 104 | * unrolled. On 68020 machines (with 256 bytes of i-cache),
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| 105 | * this define will slow execution down as instructions miss
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| 106 | * the cache frequently. On machines with real i-caches, this
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| 107 | * reduces loop overhead, causing a slight performance improvement.
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| 108 | * Currently defined for MIPS and SPARC
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| 109 | *
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| 110 | * FAST_UNALIGNED_READS -
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| 111 | * For machines with more memory bandwidth than CPU, this
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| 112 | * define uses unaligned reads for 8-bit BitBLT instead of doing
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| 113 | * aligned reads and combining the results with shifts and
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| 114 | * logical-ors. Currently defined for 68020 and vax.
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| 115 | * PLENTIFUL_REGISTERS -
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| 116 | * For machines with > 20 registers. Currently used for
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| 117 | * unrolling the text painting code a bit more. Currently
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| 118 | * defined for MIPS.
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| 119 | * SHARED_IDCACHE -
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| 120 | * For non-Harvard RISC machines, those which share the same
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| 121 | * CPU memory bus for instructions and data. This unrolls some
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| 122 | * solid fill loops which are otherwise best left rolled up.
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| 123 | * Currently defined for SPARC.
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| 124 | */
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| 125 |
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| 126 | #ifdef vax
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| 127 |
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| 128 | #define IMAGE_BYTE_ORDER LSBFirst /* Values for the VAX only */
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| 129 | #define BITMAP_BIT_ORDER LSBFirst
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| 130 | #define GLYPHPADBYTES 1
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| 131 | #define GETLEFTBITS_ALIGNMENT 4
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| 132 | #define FAST_UNALIGNED_READS
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| 133 |
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| 134 | #endif /* vax */
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| 135 |
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| 136 | #ifdef __arm32__
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| 137 |
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| 138 | #define IMAGE_BYTE_ORDER LSBFirst
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| 139 |
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| 140 | # if defined(XF86MONOVGA) || defined(XF86VGA16) || defined(XF86MONO)
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| 141 | # define BITMAP_BIT_ORDER MSBFirst
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| 142 | # else
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| 143 | # define BITMAP_BIT_ORDER LSBFirst
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| 144 | # endif
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| 145 |
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| 146 | # if defined(XF86MONOVGA) || defined(XF86VGA16)
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| 147 | # define BITMAP_SCANLINE_UNIT 8
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| 148 | # endif
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| 149 |
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| 150 | #define GLYPHPADBYTES 4
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| 151 | #define GETLEFTBITS_ALIGNMENT 1
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| 152 | #define LARGE_INSTRUCTION_CACHE
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| 153 | #define AVOID_MEMORY_READ
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| 154 |
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| 155 | #endif /* __arm32__ */
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| 156 |
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| 157 | #if defined (hpux) || defined __hppa__
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| 158 |
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| 159 | #define IMAGE_BYTE_ORDER MSBFirst
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| 160 | #define BITMAP_BIT_ORDER MSBFirst
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| 161 | #define GLYPHPADBYTES 4 /* to make fb work */
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| 162 | #define GETLEFTBITS_ALIGNMENT 1 /* PA forces longs to 4 */
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| 163 | /* byte boundries */
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| 164 | #define AVOID_MEMORY_READ
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| 165 | #define FAST_CONSTANT_OFFSET_MODE
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| 166 | #define LARGE_INSTRUCTION_CACHE
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| 167 | #define PLENTIFUL_REGISTERS
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| 168 |
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| 169 | #endif /* hpux || __hppa__ */
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| 170 |
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| 171 | #if defined(__powerpc__) || defined(__ppc__)
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| 172 |
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| 173 | #define IMAGE_BYTE_ORDER MSBFirst
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| 174 | #define BITMAP_BIT_ORDER MSBFirst
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| 175 | #define GLYPHPADBYTES 4
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| 176 | #define GETLEFTBITS_ALIGNMENT 1
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| 177 |
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| 178 | /* XXX Should this be for Lynx only? */
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| 179 | #ifdef Lynx
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| 180 | #define BITMAP_SCANLINE_UNIT 8
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| 181 | #endif
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| 182 |
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| 183 | #define LARGE_INSTRUCTION_CACHE
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| 184 | #define FAST_CONSTANT_OFFSET_MODE
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| 185 | #define PLENTIFUL_REGISTERS
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| 186 | #define AVOID_MEMORY_READ
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| 187 |
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| 188 | #define FAST_MEMCPY
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| 189 |
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| 190 | #endif /* PowerPC */
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| 191 |
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| 192 | #if defined(__sh__)
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| 193 |
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| 194 | #if defined(__BIG_ENDIAN__)
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| 195 | # define IMAGE_BYTE_ORDER MSBFirst
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| 196 | # define BITMAP_BIT_ORDER MSBFirst
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| 197 | # define GLYPHPADBYTES 4
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| 198 | # define GETLEFTBITS_ALIGNMENT 1
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| 199 | #else
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| 200 | # define IMAGE_BYTE_ORDER LSBFirst
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| 201 | # define BITMAP_BIT_ORDER LSBFirst
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| 202 | # define GLYPHPADBYTES 4
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| 203 | # define GETLEFTBITS_ALIGNMENT 1
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| 204 | #endif
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| 205 |
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| 206 | #define AVOID_MEMORY_READ
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| 207 | #define FAST_CONSTANT_OFFSET_MODE
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| 208 | #define LARGE_INSTRUCTION_CACHE
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| 209 | #define PLENTIFUL_REGISTERS
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| 210 |
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| 211 | #endif /* SuperH */
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| 212 |
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| 213 |
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| 214 | #if (defined(sun) && (defined(__sparc) || defined(sparc))) || \
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| 215 | (defined(__uxp__) && (defined(sparc) || defined(mc68000))) || \
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| 216 | defined(__sparc__) || defined(__mc68000__)
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| 217 |
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| 218 | #if defined(__sparc) || defined(__sparc__)
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| 219 | # if !defined(sparc)
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| 220 | # define sparc 1
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| 221 | # endif
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| 222 | #endif
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| 223 |
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| 224 | #if defined(sun386) || defined(sun5)
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| 225 | # define IMAGE_BYTE_ORDER LSBFirst /* Values for the SUN only */
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| 226 | # define BITMAP_BIT_ORDER LSBFirst
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| 227 | #else
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| 228 | # define IMAGE_BYTE_ORDER MSBFirst /* Values for the SUN only */
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| 229 | # define BITMAP_BIT_ORDER MSBFirst
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| 230 | #endif
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| 231 |
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| 232 | #ifdef sparc
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| 233 | # define AVOID_MEMORY_READ
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| 234 | # define LARGE_INSTRUCTION_CACHE
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| 235 | # define FAST_CONSTANT_OFFSET_MODE
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| 236 | # define SHARED_IDCACHE
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| 237 | #endif
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| 238 |
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| 239 | #ifdef mc68020
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| 240 | #define FAST_UNALIGNED_READS
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| 241 | #endif
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| 242 |
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| 243 | #define GLYPHPADBYTES 4
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| 244 | #define GETLEFTBITS_ALIGNMENT 1
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| 245 |
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| 246 | #endif /* sun && !(i386 && SVR4) */
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| 247 |
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| 248 |
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| 249 | #if defined(AIXV3)
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| 250 |
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| 251 | #define IMAGE_BYTE_ORDER MSBFirst /* Values for the RISC/6000 */
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| 252 | #define BITMAP_BIT_ORDER MSBFirst
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| 253 | #define GLYPHPADBYTES 4
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| 254 | #define GETLEFTBITS_ALIGNMENT 1
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| 255 |
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| 256 | #define LARGE_INSTRUCTION_CACHE
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| 257 | #define FAST_CONSTANT_OFFSET_MODE
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| 258 | #define PLENTIFUL_REGISTERS
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| 259 | #define AVOID_MEMORY_READ
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| 260 |
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| 261 | #define FAST_MEMCPY
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| 262 | #endif /* AIXV3 */
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| 263 |
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| 264 | #if defined(ibm032) || defined (ibm)
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| 265 |
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| 266 | #ifdef i386
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| 267 | # define IMAGE_BYTE_ORDER LSBFirst /* Value for PS/2 only */
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| 268 | #else
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| 269 | # define IMAGE_BYTE_ORDER MSBFirst /* Values for the RT only*/
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| 270 | #endif
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| 271 | #define BITMAP_BIT_ORDER MSBFirst
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| 272 | #define GLYPHPADBYTES 1
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| 273 | #define GETLEFTBITS_ALIGNMENT 4
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| 274 | /* ibm pcc doesn't understand pragmas. */
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| 275 |
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| 276 | #ifdef i386
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| 277 | #define BITMAP_SCANLINE_UNIT 8
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| 278 | #endif
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| 279 |
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| 280 | #endif /* ibm */
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| 281 |
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| 282 | #if defined (M4310) || defined(M4315) || defined(M4317) || defined(M4319) || defined(M4330)
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| 283 |
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| 284 | #define IMAGE_BYTE_ORDER MSBFirst /* Values for Pegasus only */
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| 285 | #define BITMAP_BIT_ORDER MSBFirst
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| 286 | #define GLYPHPADBYTES 4
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| 287 | #define GETLEFTBITS_ALIGNMENT 1
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| 288 |
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| 289 | #define FAST_UNALIGNED_READS
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| 290 |
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| 291 | #endif /* tektronix */
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| 292 |
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| 293 | #ifdef macII
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| 294 |
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| 295 | #define IMAGE_BYTE_ORDER MSBFirst /* Values for the MacII only */
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| 296 | #define BITMAP_BIT_ORDER MSBFirst
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| 297 | #define GLYPHPADBYTES 4
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| 298 | #define GETLEFTBITS_ALIGNMENT 1
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| 299 |
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| 300 | /* might want FAST_UNALIGNED_READS for frame buffers with < 1us latency */
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| 301 |
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| 302 | #endif /* macII */
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| 303 |
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| 304 | #if (defined(mips) || defined(__mips)) && !defined(sgi)
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| 305 |
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| 306 | #if defined(MIPSEL) || defined(__MIPSEL__)
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| 307 | # define IMAGE_BYTE_ORDER LSBFirst /* Values for the PMAX only */
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| 308 | # define BITMAP_BIT_ORDER LSBFirst
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| 309 | # define GLYPHPADBYTES 4
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| 310 | # define GETLEFTBITS_ALIGNMENT 1
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| 311 | #else
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| 312 | # define IMAGE_BYTE_ORDER MSBFirst /* Values for the MIPS only */
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| 313 | # define BITMAP_BIT_ORDER MSBFirst
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| 314 | # define GLYPHPADBYTES 4
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| 315 | # define GETLEFTBITS_ALIGNMENT 1
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| 316 | #endif
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| 317 |
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| 318 | #define AVOID_MEMORY_READ
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| 319 | #define FAST_CONSTANT_OFFSET_MODE
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| 320 | #define LARGE_INSTRUCTION_CACHE
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| 321 | #define PLENTIFUL_REGISTERS
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| 322 |
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| 323 | #endif /* mips */
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| 324 |
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| 325 | #if defined(__alpha) || defined(__alpha__) || defined(__alphaCross)
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| 326 | # define IMAGE_BYTE_ORDER LSBFirst /* Values for the Alpha only */
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| 327 |
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| 328 | # if defined(XF86MONOVGA) || defined(XF86VGA16) || defined(XF86MONO)
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| 329 | # define BITMAP_BIT_ORDER MSBFirst
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| 330 | # else
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| 331 | # define BITMAP_BIT_ORDER LSBFirst
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| 332 | # endif
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| 333 |
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| 334 | # if defined(XF86MONOVGA) || defined(XF86VGA16)
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| 335 | # define BITMAP_SCANLINE_UNIT 8
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| 336 | # endif
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| 337 |
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| 338 | # define GLYPHPADBYTES 4
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| 339 | # define GETLEFTBITS_ALIGNMENT 1
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| 340 | # define FAST_CONSTANT_OFFSET_MODE
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| 341 | # define LARGE_INSTRUCTION_CACHE
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| 342 | # define PLENTIFUL_REGISTERS
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| 343 |
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| 344 | #endif /* alpha */
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| 345 |
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| 346 | #if defined (linux) && defined (__s390__)
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| 347 |
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| 348 | #define IMAGE_BYTE_ORDER MSBFirst
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| 349 | #define BITMAP_BIT_ORDER MSBFirst
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| 350 | #define GLYPHPADBYTES 4
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| 351 | #define GETLEFTBITS_ALIGNMENT 1
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| 352 |
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| 353 | #define BITMAP_SCANLINE_UNIT 8
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| 354 | #define LARGE_INSTRUCTION_CACHE
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| 355 | #define FAST_CONSTANT_OFFSET_MODE
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| 356 | #define FAST_UNALIGNED_READ
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| 357 |
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| 358 | #define FAST_MEMCPY
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| 359 |
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| 360 | #endif /* linux/s390 */
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| 361 |
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| 362 | #if defined (linux) && defined (__s390x__)
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| 363 |
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| 364 | #define IMAGE_BYTE_ORDER MSBFirst
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| 365 | #define BITMAP_BIT_ORDER MSBFirst
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| 366 | #define GLYPHPADBYTES 4
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| 367 | #define GETLEFTBITS_ALIGNMENT 1
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| 368 |
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| 369 | #define BITMAP_SCANLINE_UNIT 8
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| 370 | #define LARGE_INSTRUCTION_CACHE
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| 371 | #define FAST_CONSTANT_OFFSET_MODE
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| 372 | #define FAST_UNALIGNED_READ
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| 373 |
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| 374 | #define FAST_MEMCPY
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| 375 | #endif /* linux/s390x */
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| 376 |
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| 377 |
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| 378 | #if defined(__ia64__) || defined(ia64)
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| 379 | # define IMAGE_BYTE_ORDER LSBFirst
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| 380 |
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| 381 | # if defined(XF86MONOVGA) || defined(XF86VGA16) || defined(XF86MONO)
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| 382 | # define BITMAP_BIT_ORDER MSBFirst
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| 383 | # else
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| 384 | # define BITMAP_BIT_ORDER LSBFirst
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| 385 | # endif
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| 386 |
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| 387 | # if defined(XF86MONOVGA) || defined(XF86VGA16)
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| 388 | # define BITMAP_SCANLINE_UNIT 8
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| 389 | # endif
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| 390 |
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| 391 | # define GLYPHPADBYTES 4
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| 392 | # define GETLEFTBITS_ALIGNMENT 1
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| 393 | # define FAST_CONSTANT_OFFSET_MODE
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| 394 | # define LARGE_INSTRUCTION_CACHE
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| 395 | # define PLENTIFUL_REGISTERS
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| 396 |
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| 397 | #endif /* ia64 */
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| 398 |
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| 399 | #if defined(__amd64__) || defined(amd64) || defined(__amd64)
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| 400 | # define IMAGE_BYTE_ORDER LSBFirst
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| 401 |
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| 402 | # if defined(XF86MONOVGA) || defined(XF86VGA16) || defined(XF86MONO)
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| 403 | # define BITMAP_BIT_ORDER MSBFirst
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| 404 | # else
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| 405 | # define BITMAP_BIT_ORDER LSBFirst
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| 406 | # endif
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| 407 |
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| 408 | # if defined(XF86MONOVGA) || defined(XF86VGA16)
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| 409 | # define BITMAP_SCANLINE_UNIT 8
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| 410 | # endif
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| 411 |
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| 412 | # define GLYPHPADBYTES 4
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| 413 | # define GETLEFTBITS_ALIGNMENT 1
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| 414 | # define LARGE_INSTRUCTION_CACHE
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| 415 | # define FAST_CONSTANT_OFFSET_MODE
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| 416 | /* ???? */
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| 417 | # define FAST_UNALIGNED_READS
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| 418 | #endif /* AMD64 */
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| 419 |
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| 420 | #ifdef stellar
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| 421 |
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| 422 | #define IMAGE_BYTE_ORDER MSBFirst /* Values for the stellar only*/
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| 423 | #define BITMAP_BIT_ORDER MSBFirst
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| 424 | #define GLYPHPADBYTES 4
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| 425 | #define GETLEFTBITS_ALIGNMENT 4
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| 426 | #define IMAGE_BUFSIZE (64*1024)
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| 427 | /*
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| 428 | * Use SysV random number generator.
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| 429 | */
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| 430 | #define random rand
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| 431 |
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| 432 | #endif /* stellar */
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| 433 |
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| 434 | #ifdef luna
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| 435 |
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| 436 | #define IMAGE_BYTE_ORDER MSBFirst /* Values for the OMRON only*/
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| 437 | #define BITMAP_BIT_ORDER MSBFirst
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| 438 | #define GLYPHPADBYTES 4
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| 439 | #define GETLEFTBITS_ALIGNMENT 1
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| 440 |
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| 441 | #ifndef mc68000
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| 442 | #define FAST_CONSTANT_OFFSET_MODE
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| 443 | #define AVOID_MEMORY_READ
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| 444 | #define LARGE_INSTRUCTION_CACHE
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| 445 | #define PLENTIFUL_REGISTERS
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| 446 | #endif
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| 447 |
|
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| 448 | #endif /* luna */
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| 449 |
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| 450 | #if (defined(SVR4) && defined(i386)) || \
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| 451 | defined(__alpha__) || defined(__alpha) || \
|
|---|
| 452 | defined(__i386__) || defined(__i386) || \
|
|---|
| 453 | defined(__UNIXOS2__) || \
|
|---|
| 454 | defined(__OS2ELF__) || \
|
|---|
| 455 | defined(__QNX__) || \
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| 456 | defined(__s390x__) || defined(__s390__)
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| 457 |
|
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| 458 | #ifndef IMAGE_BYTE_ORDER
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| 459 | #define IMAGE_BYTE_ORDER LSBFirst
|
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| 460 | #endif
|
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| 461 |
|
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| 462 | #ifndef BITMAP_BIT_ORDER
|
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| 463 | # if defined(XF86MONOVGA) || defined(XF86VGA16) || defined(XF86MONO)
|
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| 464 | # define BITMAP_BIT_ORDER MSBFirst
|
|---|
| 465 | # else
|
|---|
| 466 | # define BITMAP_BIT_ORDER LSBFirst
|
|---|
| 467 | # endif
|
|---|
| 468 | #endif
|
|---|
| 469 |
|
|---|
| 470 | #ifndef BITMAP_SCANLINE_UNIT
|
|---|
| 471 | # if defined(XF86MONOVGA) || defined(XF86VGA16)
|
|---|
| 472 | # define BITMAP_SCANLINE_UNIT 8
|
|---|
| 473 | # endif
|
|---|
| 474 | #endif
|
|---|
| 475 |
|
|---|
| 476 | #ifndef GLYPHPADBYTES
|
|---|
| 477 | #define GLYPHPADBYTES 4
|
|---|
| 478 | #endif
|
|---|
| 479 |
|
|---|
| 480 | #define GETLEFTBITS_ALIGNMENT 1
|
|---|
| 481 | #define AVOID_MEMORY_READ
|
|---|
| 482 | #ifdef XSVGA
|
|---|
| 483 | #define AVOID_GLYPHBLT
|
|---|
| 484 | #define FAST_CONSTANT_OFFSET_MODE
|
|---|
| 485 | #define FAST_MEMCPY
|
|---|
| 486 | #define NO_ONE_RECT
|
|---|
| 487 | #endif
|
|---|
| 488 |
|
|---|
| 489 | #endif /* SVR4 / BSD / i386 */
|
|---|
| 490 |
|
|---|
| 491 | #if defined (linux) && defined (__mc68000__)
|
|---|
| 492 |
|
|---|
| 493 | #define IMAGE_BYTE_ORDER MSBFirst
|
|---|
| 494 | #define BITMAP_BIT_ORDER MSBFirst
|
|---|
| 495 | #define FAST_UNALIGNED_READS
|
|---|
| 496 | #define GLYPHPADBYTES 4
|
|---|
| 497 | #define GETLEFTBITS_ALIGNMENT 1
|
|---|
| 498 |
|
|---|
| 499 | #endif /* linux/m68k */
|
|---|
| 500 |
|
|---|
| 501 | #ifdef sgi
|
|---|
| 502 |
|
|---|
| 503 | #define IMAGE_BYTE_ORDER MSBFirst
|
|---|
| 504 | #define BITMAP_BIT_ORDER MSBFirst
|
|---|
| 505 | #define GLYPHPADBYTES 4
|
|---|
| 506 | #define GETLEFTBITS_ALIGNMENT 1
|
|---|
| 507 | #define AVOID_MEMORY_READ
|
|---|
| 508 | #define FAST_CONSTANT_OFFSET_MODE
|
|---|
| 509 | #define LARGE_INSTRUCTION_CACHE
|
|---|
| 510 | #define PLENTIFUL_REGISTERS
|
|---|
| 511 |
|
|---|
| 512 | #endif
|
|---|
| 513 |
|
|---|
| 514 | /* linux on the Compaq Itsy */
|
|---|
| 515 | #if defined(linux) && defined(__arm__)
|
|---|
| 516 | #define IMAGE_BYTE_ORDER LSBFirst
|
|---|
| 517 | #define BITMAP_BIT_ORDER LSBFirst
|
|---|
| 518 | #define GLYPHPADBYTES 4
|
|---|
| 519 | #define GETLEFTBITS_ALIGNMENT 1
|
|---|
| 520 | #endif
|
|---|
| 521 |
|
|---|
| 522 | /* size of buffer to use with GetImage, measured in bytes. There's obviously
|
|---|
| 523 | * a trade-off between the amount of stack (or whatever ALLOCATE_LOCAL gives
|
|---|
| 524 | * you) used and the number of times the ddx routine has to be called.
|
|---|
| 525 | */
|
|---|
| 526 | #ifndef IMAGE_BUFSIZE
|
|---|
| 527 | #define IMAGE_BUFSIZE (64*1024)
|
|---|
| 528 | #endif
|
|---|
| 529 |
|
|---|
| 530 | /* pad scanline to a longword */
|
|---|
| 531 | #ifndef BITMAP_SCANLINE_UNIT
|
|---|
| 532 | #define BITMAP_SCANLINE_UNIT 32
|
|---|
| 533 | #endif
|
|---|
| 534 |
|
|---|
| 535 | #ifndef BITMAP_SCANLINE_PAD
|
|---|
| 536 | #define BITMAP_SCANLINE_PAD 32
|
|---|
| 537 | #define LOG2_BITMAP_PAD 5
|
|---|
| 538 | #define LOG2_BYTES_PER_SCANLINE_PAD 2
|
|---|
| 539 | #endif
|
|---|
| 540 |
|
|---|
| 541 | /*
|
|---|
| 542 | * This returns the number of padding units, for depth d and width w.
|
|---|
| 543 | * For bitmaps this can be calculated with the macros above.
|
|---|
| 544 | * Other depths require either grovelling over the formats field of the
|
|---|
| 545 | * screenInfo or hardwired constants.
|
|---|
| 546 | */
|
|---|
| 547 |
|
|---|
| 548 | typedef struct _PaddingInfo {
|
|---|
| 549 | int padRoundUp; /* pixels per pad unit - 1 */
|
|---|
| 550 | int padPixelsLog2; /* log 2 (pixels per pad unit) */
|
|---|
| 551 | int padBytesLog2; /* log 2 (bytes per pad unit) */
|
|---|
| 552 | int notPower2; /* bitsPerPixel not a power of 2 */
|
|---|
| 553 | int bytesPerPixel; /* only set when notPower2 is TRUE */
|
|---|
| 554 | int bitsPerPixel; /* bits per pixel */
|
|---|
| 555 | } PaddingInfo;
|
|---|
| 556 | extern PaddingInfo PixmapWidthPaddingInfo[];
|
|---|
| 557 |
|
|---|
| 558 | /* The only portable way to get the bpp from the depth is to look it up */
|
|---|
| 559 | #define BitsPerPixel(d) (PixmapWidthPaddingInfo[d].bitsPerPixel)
|
|---|
| 560 |
|
|---|
| 561 | #define PixmapWidthInPadUnits(w, d) \
|
|---|
| 562 | (PixmapWidthPaddingInfo[d].notPower2 ? \
|
|---|
| 563 | (((int)(w) * PixmapWidthPaddingInfo[d].bytesPerPixel + \
|
|---|
| 564 | PixmapWidthPaddingInfo[d].bytesPerPixel) >> \
|
|---|
| 565 | PixmapWidthPaddingInfo[d].padBytesLog2) : \
|
|---|
| 566 | ((int)((w) + PixmapWidthPaddingInfo[d].padRoundUp) >> \
|
|---|
| 567 | PixmapWidthPaddingInfo[d].padPixelsLog2))
|
|---|
| 568 |
|
|---|
| 569 | /*
|
|---|
| 570 | * Return the number of bytes to which a scanline of the given
|
|---|
| 571 | * depth and width will be padded.
|
|---|
| 572 | */
|
|---|
| 573 | #define PixmapBytePad(w, d) \
|
|---|
| 574 | (PixmapWidthInPadUnits(w, d) << PixmapWidthPaddingInfo[d].padBytesLog2)
|
|---|
| 575 |
|
|---|
| 576 | #define BitmapBytePad(w) \
|
|---|
| 577 | (((int)((w) + BITMAP_SCANLINE_PAD - 1) >> LOG2_BITMAP_PAD) << LOG2_BYTES_PER_SCANLINE_PAD)
|
|---|
| 578 |
|
|---|
| 579 | #define PixmapWidthInPadUnitsProto(w, d) PixmapWidthInPadUnits(w, d)
|
|---|
| 580 | #define PixmapBytePadProto(w, d) PixmapBytePad(w, d)
|
|---|
| 581 | #define BitmapBytePadProto(w) BitmapBytePad(w)
|
|---|
| 582 |
|
|---|
| 583 | #endif /* SERVERMD_H */
|
|---|
