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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 55 | pj | 1 | /* $Id: macros.h,v 1.1 2003-02-28 11:42:03 pj Exp $ */ |
| 2 | |||
| 3 | /* |
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| 4 | * Mesa 3-D graphics library |
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| 5 | * Version: 4.0.3 |
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| 6 | * |
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| 7 | * Copyright (C) 1999-2002 Brian Paul All Rights Reserved. |
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| 8 | * |
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| 9 | * Permission is hereby granted, free of charge, to any person obtaining a |
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| 10 | * copy of this software and associated documentation files (the "Software"), |
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| 11 | * to deal in the Software without restriction, including without limitation |
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| 12 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
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| 13 | * and/or sell copies of the Software, and to permit persons to whom the |
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| 14 | * Software is furnished to do so, subject to the following conditions: |
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| 15 | * |
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| 16 | * The above copyright notice and this permission notice shall be included |
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| 17 | * in all copies or substantial portions of the Software. |
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| 18 | * |
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| 19 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS |
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| 20 | * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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| 21 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
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| 22 | * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN |
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| 23 | * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN |
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| 24 | * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
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| 25 | */ |
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| 26 | |||
| 27 | |||
| 28 | /* |
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| 29 | * A collection of useful macros. |
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| 30 | */ |
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| 31 | |||
| 32 | |||
| 33 | #ifndef MACROS_H |
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| 34 | #define MACROS_H |
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| 35 | |||
| 36 | |||
| 37 | #include "glheader.h" |
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| 38 | /* Do not reference mtypes.h from this file. |
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| 39 | */ |
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| 40 | |||
| 41 | |||
| 42 | /* Limits: */ |
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| 43 | #define MAX_GLUSHORT 0xffff |
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| 44 | #define MAX_GLUINT 0xffffffff |
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| 45 | |||
| 46 | |||
| 47 | /* Pi */ |
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| 48 | #ifndef M_PI |
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| 49 | #define M_PI (3.1415926) |
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| 50 | #endif |
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| 51 | |||
| 52 | |||
| 53 | /* Degrees to radians conversion: */ |
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| 54 | #define DEG2RAD (M_PI/180.0) |
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| 55 | |||
| 56 | |||
| 57 | #ifndef NULL |
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| 58 | #define NULL 0 |
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| 59 | #endif |
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| 60 | |||
| 61 | |||
| 62 | /* Stepping a GLfloat pointer by a byte stride |
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| 63 | */ |
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| 64 | #define STRIDE_F(p, i) (p = (GLfloat *)((GLubyte *)p + i)) |
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| 65 | #define STRIDE_UI(p, i) (p = (GLuint *)((GLubyte *)p + i)) |
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| 66 | #define STRIDE_4UB(p, i) (p = (GLubyte (*)[4])((GLubyte *)p + i)) |
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| 67 | #define STRIDE_4CHAN(p, i) (p = (GLchan (*)[4])((GLubyte *)p + i)) |
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| 68 | #define STRIDE_CHAN(p, i) (p = (GLchan *)((GLubyte *)p + i)) |
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| 69 | #define STRIDE_T(p, t, i) (p = (t)((GLubyte *)p + i)) |
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| 70 | |||
| 71 | |||
| 72 | #define ZERO_2V( DST ) (DST)[0] = (DST)[1] = 0 |
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| 73 | #define ZERO_3V( DST ) (DST)[0] = (DST)[1] = (DST)[2] = 0 |
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| 74 | #define ZERO_4V( DST ) (DST)[0] = (DST)[1] = (DST)[2] = (DST)[3] = 0 |
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| 75 | |||
| 76 | |||
| 77 | #define TEST_EQ_4V(a,b) ((a)[0] == (b)[0] && \ |
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| 78 | (a)[1] == (b)[1] && \ |
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| 79 | (a)[2] == (b)[2] && \ |
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| 80 | (a)[3] == (b)[3]) |
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| 81 | |||
| 82 | #define TEST_EQ_3V(a,b) ((a)[0] == (b)[0] && \ |
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| 83 | (a)[1] == (b)[1] && \ |
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| 84 | (a)[2] == (b)[2]) |
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| 85 | |||
| 86 | #if defined(__i386__) |
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| 87 | #define TEST_EQ_4UBV(DST, SRC) *((GLuint*)(DST)) == *((GLuint*)(SRC)) |
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| 88 | #else |
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| 89 | #define TEST_EQ_4UBV(DST, SRC) TEST_EQ_4V(DST, SRC) |
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| 90 | #endif |
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| 91 | |||
| 92 | |||
| 93 | |||
| 94 | /* Copy short vectors: */ |
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| 95 | #define COPY_2V( DST, SRC ) \ |
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| 96 | do { \ |
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| 97 | (DST)[0] = (SRC)[0]; \ |
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| 98 | (DST)[1] = (SRC)[1]; \ |
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| 99 | } while (0) |
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| 100 | |||
| 101 | #define COPY_3V( DST, SRC ) \ |
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| 102 | do { \ |
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| 103 | (DST)[0] = (SRC)[0]; \ |
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| 104 | (DST)[1] = (SRC)[1]; \ |
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| 105 | (DST)[2] = (SRC)[2]; \ |
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| 106 | } while (0) |
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| 107 | |||
| 108 | #define COPY_4V( DST, SRC ) \ |
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| 109 | do { \ |
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| 110 | (DST)[0] = (SRC)[0]; \ |
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| 111 | (DST)[1] = (SRC)[1]; \ |
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| 112 | (DST)[2] = (SRC)[2]; \ |
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| 113 | (DST)[3] = (SRC)[3]; \ |
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| 114 | } while (0) |
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| 115 | |||
| 116 | #define COPY_2V_CAST( DST, SRC, CAST ) \ |
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| 117 | do { \ |
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| 118 | (DST)[0] = (CAST)(SRC)[0]; \ |
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| 119 | (DST)[1] = (CAST)(SRC)[1]; \ |
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| 120 | } while (0) |
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| 121 | |||
| 122 | #define COPY_3V_CAST( DST, SRC, CAST ) \ |
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| 123 | do { \ |
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| 124 | (DST)[0] = (CAST)(SRC)[0]; \ |
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| 125 | (DST)[1] = (CAST)(SRC)[1]; \ |
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| 126 | (DST)[2] = (CAST)(SRC)[2]; \ |
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| 127 | } while (0) |
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| 128 | |||
| 129 | #define COPY_4V_CAST( DST, SRC, CAST ) \ |
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| 130 | do { \ |
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| 131 | (DST)[0] = (CAST)(SRC)[0]; \ |
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| 132 | (DST)[1] = (CAST)(SRC)[1]; \ |
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| 133 | (DST)[2] = (CAST)(SRC)[2]; \ |
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| 134 | (DST)[3] = (CAST)(SRC)[3]; \ |
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| 135 | } while (0) |
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| 136 | |||
| 137 | #if defined(__i386__) |
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| 138 | #define COPY_4UBV(DST, SRC) \ |
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| 139 | do { \ |
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| 140 | *((GLuint*)(DST)) = *((GLuint*)(SRC)); \ |
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| 141 | } while (0) |
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| 142 | #else |
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| 143 | /* The GLuint cast might fail if DST or SRC are not dword-aligned (RISC) */ |
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| 144 | #define COPY_4UBV(DST, SRC) \ |
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| 145 | do { \ |
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| 146 | (DST)[0] = (SRC)[0]; \ |
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| 147 | (DST)[1] = (SRC)[1]; \ |
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| 148 | (DST)[2] = (SRC)[2]; \ |
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| 149 | (DST)[3] = (SRC)[3]; \ |
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| 150 | } while (0) |
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| 151 | #endif |
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| 152 | |||
| 153 | #define COPY_2FV( DST, SRC ) \ |
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| 154 | do { \ |
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| 155 | const GLfloat *_tmp = (SRC); \ |
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| 156 | (DST)[0] = _tmp[0]; \ |
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| 157 | (DST)[1] = _tmp[1]; \ |
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| 158 | } while (0) |
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| 159 | |||
| 160 | #define COPY_3FV( DST, SRC ) \ |
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| 161 | do { \ |
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| 162 | const GLfloat *_tmp = (SRC); \ |
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| 163 | (DST)[0] = _tmp[0]; \ |
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| 164 | (DST)[1] = _tmp[1]; \ |
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| 165 | (DST)[2] = _tmp[2]; \ |
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| 166 | } while (0) |
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| 167 | |||
| 168 | #define COPY_4FV( DST, SRC ) \ |
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| 169 | do { \ |
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| 170 | const GLfloat *_tmp = (SRC); \ |
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| 171 | (DST)[0] = _tmp[0]; \ |
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| 172 | (DST)[1] = _tmp[1]; \ |
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| 173 | (DST)[2] = _tmp[2]; \ |
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| 174 | (DST)[3] = _tmp[3]; \ |
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| 175 | } while (0) |
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| 176 | |||
| 177 | |||
| 178 | |||
| 179 | #define COPY_SZ_4V(DST, SZ, SRC) \ |
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| 180 | do { \ |
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| 181 | switch (SZ) { \ |
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| 182 | case 4: (DST)[3] = (SRC)[3]; \ |
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| 183 | case 3: (DST)[2] = (SRC)[2]; \ |
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| 184 | case 2: (DST)[1] = (SRC)[1]; \ |
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| 185 | case 1: (DST)[0] = (SRC)[0]; \ |
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| 186 | } \ |
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| 187 | } while(0) |
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| 188 | |||
| 189 | #define COPY_CLEAN_4V(DST, SZ, SRC) \ |
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| 190 | do { \ |
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| 191 | ASSIGN_4V( DST, 0, 0, 0, 1 ); \ |
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| 192 | COPY_SZ_4V( DST, SZ, SRC ); \ |
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| 193 | } while (0) |
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| 194 | |||
| 195 | #define SUB_4V( DST, SRCA, SRCB ) \ |
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| 196 | do { \ |
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| 197 | (DST)[0] = (SRCA)[0] - (SRCB)[0]; \ |
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| 198 | (DST)[1] = (SRCA)[1] - (SRCB)[1]; \ |
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| 199 | (DST)[2] = (SRCA)[2] - (SRCB)[2]; \ |
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| 200 | (DST)[3] = (SRCA)[3] - (SRCB)[3]; \ |
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| 201 | } while (0) |
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| 202 | |||
| 203 | #define ADD_4V( DST, SRCA, SRCB ) \ |
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| 204 | do { \ |
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| 205 | (DST)[0] = (SRCA)[0] + (SRCB)[0]; \ |
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| 206 | (DST)[1] = (SRCA)[1] + (SRCB)[1]; \ |
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| 207 | (DST)[2] = (SRCA)[2] + (SRCB)[2]; \ |
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| 208 | (DST)[3] = (SRCA)[3] + (SRCB)[3]; \ |
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| 209 | } while (0) |
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| 210 | |||
| 211 | #define SCALE_4V( DST, SRCA, SRCB ) \ |
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| 212 | do { \ |
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| 213 | (DST)[0] = (SRCA)[0] * (SRCB)[0]; \ |
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| 214 | (DST)[1] = (SRCA)[1] * (SRCB)[1]; \ |
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| 215 | (DST)[2] = (SRCA)[2] * (SRCB)[2]; \ |
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| 216 | (DST)[3] = (SRCA)[3] * (SRCB)[3]; \ |
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| 217 | } while (0) |
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| 218 | |||
| 219 | #define ACC_4V( DST, SRC ) \ |
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| 220 | do { \ |
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| 221 | (DST)[0] += (SRC)[0]; \ |
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| 222 | (DST)[1] += (SRC)[1]; \ |
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| 223 | (DST)[2] += (SRC)[2]; \ |
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| 224 | (DST)[3] += (SRC)[3]; \ |
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| 225 | } while (0) |
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| 226 | |||
| 227 | #define ACC_SCALE_4V( DST, SRCA, SRCB ) \ |
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| 228 | do { \ |
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| 229 | (DST)[0] += (SRCA)[0] * (SRCB)[0]; \ |
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| 230 | (DST)[1] += (SRCA)[1] * (SRCB)[1]; \ |
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| 231 | (DST)[2] += (SRCA)[2] * (SRCB)[2]; \ |
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| 232 | (DST)[3] += (SRCA)[3] * (SRCB)[3]; \ |
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| 233 | } while (0) |
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| 234 | |||
| 235 | #define ACC_SCALE_SCALAR_4V( DST, S, SRCB ) \ |
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| 236 | do { \ |
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| 237 | (DST)[0] += S * (SRCB)[0]; \ |
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| 238 | (DST)[1] += S * (SRCB)[1]; \ |
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| 239 | (DST)[2] += S * (SRCB)[2]; \ |
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| 240 | (DST)[3] += S * (SRCB)[3]; \ |
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| 241 | } while (0) |
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| 242 | |||
| 243 | #define SCALE_SCALAR_4V( DST, S, SRCB ) \ |
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| 244 | do { \ |
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| 245 | (DST)[0] = S * (SRCB)[0]; \ |
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| 246 | (DST)[1] = S * (SRCB)[1]; \ |
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| 247 | (DST)[2] = S * (SRCB)[2]; \ |
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| 248 | (DST)[3] = S * (SRCB)[3]; \ |
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| 249 | } while (0) |
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| 250 | |||
| 251 | |||
| 252 | #define SELF_SCALE_SCALAR_4V( DST, S ) \ |
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| 253 | do { \ |
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| 254 | (DST)[0] *= S; \ |
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| 255 | (DST)[1] *= S; \ |
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| 256 | (DST)[2] *= S; \ |
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| 257 | (DST)[3] *= S; \ |
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| 258 | } while (0) |
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| 259 | |||
| 260 | |||
| 261 | /* |
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| 262 | * Similarly for 3-vectors. |
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| 263 | */ |
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| 264 | #define SUB_3V( DST, SRCA, SRCB ) \ |
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| 265 | do { \ |
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| 266 | (DST)[0] = (SRCA)[0] - (SRCB)[0]; \ |
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| 267 | (DST)[1] = (SRCA)[1] - (SRCB)[1]; \ |
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| 268 | (DST)[2] = (SRCA)[2] - (SRCB)[2]; \ |
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| 269 | } while (0) |
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| 270 | |||
| 271 | #define ADD_3V( DST, SRCA, SRCB ) \ |
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| 272 | do { \ |
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| 273 | (DST)[0] = (SRCA)[0] + (SRCB)[0]; \ |
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| 274 | (DST)[1] = (SRCA)[1] + (SRCB)[1]; \ |
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| 275 | (DST)[2] = (SRCA)[2] + (SRCB)[2]; \ |
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| 276 | } while (0) |
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| 277 | |||
| 278 | #define SCALE_3V( DST, SRCA, SRCB ) \ |
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| 279 | do { \ |
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| 280 | (DST)[0] = (SRCA)[0] * (SRCB)[0]; \ |
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| 281 | (DST)[1] = (SRCA)[1] * (SRCB)[1]; \ |
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| 282 | (DST)[2] = (SRCA)[2] * (SRCB)[2]; \ |
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| 283 | } while (0) |
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| 284 | |||
| 285 | #define SELF_SCALE_3V( DST, SRC ) \ |
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| 286 | do { \ |
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| 287 | (DST)[0] *= (SRC)[0]; \ |
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| 288 | (DST)[1] *= (SRC)[1]; \ |
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| 289 | (DST)[2] *= (SRC)[2]; \ |
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| 290 | } while (0) |
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| 291 | |||
| 292 | #define ACC_3V( DST, SRC ) \ |
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| 293 | do { \ |
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| 294 | (DST)[0] += (SRC)[0]; \ |
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| 295 | (DST)[1] += (SRC)[1]; \ |
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| 296 | (DST)[2] += (SRC)[2]; \ |
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| 297 | } while (0) |
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| 298 | |||
| 299 | #define ACC_SCALE_3V( DST, SRCA, SRCB ) \ |
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| 300 | do { \ |
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| 301 | (DST)[0] += (SRCA)[0] * (SRCB)[0]; \ |
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| 302 | (DST)[1] += (SRCA)[1] * (SRCB)[1]; \ |
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| 303 | (DST)[2] += (SRCA)[2] * (SRCB)[2]; \ |
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| 304 | } while (0) |
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| 305 | |||
| 306 | #define SCALE_SCALAR_3V( DST, S, SRCB ) \ |
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| 307 | do { \ |
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| 308 | (DST)[0] = S * (SRCB)[0]; \ |
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| 309 | (DST)[1] = S * (SRCB)[1]; \ |
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| 310 | (DST)[2] = S * (SRCB)[2]; \ |
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| 311 | } while (0) |
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| 312 | |||
| 313 | #define ACC_SCALE_SCALAR_3V( DST, S, SRCB ) \ |
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| 314 | do { \ |
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| 315 | (DST)[0] += S * (SRCB)[0]; \ |
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| 316 | (DST)[1] += S * (SRCB)[1]; \ |
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| 317 | (DST)[2] += S * (SRCB)[2]; \ |
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| 318 | } while (0) |
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| 319 | |||
| 320 | #define SELF_SCALE_SCALAR_3V( DST, S ) \ |
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| 321 | do { \ |
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| 322 | (DST)[0] *= S; \ |
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| 323 | (DST)[1] *= S; \ |
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| 324 | (DST)[2] *= S; \ |
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| 325 | } while (0) |
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| 326 | |||
| 327 | #define ACC_SCALAR_3V( DST, S ) \ |
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| 328 | do { \ |
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| 329 | (DST)[0] += S; \ |
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| 330 | (DST)[1] += S; \ |
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| 331 | (DST)[2] += S; \ |
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| 332 | } while (0) |
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| 333 | |||
| 334 | /* And also for 2-vectors |
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| 335 | */ |
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| 336 | #define SUB_2V( DST, SRCA, SRCB ) \ |
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| 337 | do { \ |
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| 338 | (DST)[0] = (SRCA)[0] - (SRCB)[0]; \ |
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| 339 | (DST)[1] = (SRCA)[1] - (SRCB)[1]; \ |
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| 340 | } while (0) |
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| 341 | |||
| 342 | #define ADD_2V( DST, SRCA, SRCB ) \ |
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| 343 | do { \ |
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| 344 | (DST)[0] = (SRCA)[0] + (SRCB)[0]; \ |
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| 345 | (DST)[1] = (SRCA)[1] + (SRCB)[1]; \ |
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| 346 | } while (0) |
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| 347 | |||
| 348 | #define SCALE_2V( DST, SRCA, SRCB ) \ |
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| 349 | do { \ |
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| 350 | (DST)[0] = (SRCA)[0] * (SRCB)[0]; \ |
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| 351 | (DST)[1] = (SRCA)[1] * (SRCB)[1]; \ |
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| 352 | } while (0) |
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| 353 | |||
| 354 | #define ACC_2V( DST, SRC ) \ |
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| 355 | do { \ |
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| 356 | (DST)[0] += (SRC)[0]; \ |
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| 357 | (DST)[1] += (SRC)[1]; \ |
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| 358 | } while (0) |
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| 359 | |||
| 360 | #define ACC_SCALE_2V( DST, SRCA, SRCB ) \ |
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| 361 | do { \ |
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| 362 | (DST)[0] += (SRCA)[0] * (SRCB)[0]; \ |
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| 363 | (DST)[1] += (SRCA)[1] * (SRCB)[1]; \ |
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| 364 | } while (0) |
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| 365 | |||
| 366 | #define SCALE_SCALAR_2V( DST, S, SRCB ) \ |
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| 367 | do { \ |
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| 368 | (DST)[0] = S * (SRCB)[0]; \ |
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| 369 | (DST)[1] = S * (SRCB)[1]; \ |
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| 370 | } while (0) |
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| 371 | |||
| 372 | #define ACC_SCALE_SCALAR_2V( DST, S, SRCB ) \ |
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| 373 | do { \ |
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| 374 | (DST)[0] += S * (SRCB)[0]; \ |
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| 375 | (DST)[1] += S * (SRCB)[1]; \ |
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| 376 | } while (0) |
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| 377 | |||
| 378 | #define SELF_SCALE_SCALAR_2V( DST, S ) \ |
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| 379 | do { \ |
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| 380 | (DST)[0] *= S; \ |
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| 381 | (DST)[1] *= S; \ |
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| 382 | } while (0) |
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| 383 | |||
| 384 | #define ACC_SCALAR_2V( DST, S ) \ |
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| 385 | do { \ |
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| 386 | (DST)[0] += S; \ |
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| 387 | (DST)[1] += S; \ |
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| 388 | } while (0) |
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| 389 | |||
| 390 | |||
| 391 | |||
| 392 | /* Assign scalers to short vectors: */ |
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| 393 | #define ASSIGN_2V( V, V0, V1 ) \ |
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| 394 | do { \ |
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| 395 | V[0] = V0; \ |
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| 396 | V[1] = V1; \ |
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| 397 | } while(0) |
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| 398 | |||
| 399 | #define ASSIGN_3V( V, V0, V1, V2 ) \ |
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| 400 | do { \ |
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| 401 | V[0] = V0; \ |
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| 402 | V[1] = V1; \ |
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| 403 | V[2] = V2; \ |
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| 404 | } while(0) |
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| 405 | |||
| 406 | #define ASSIGN_4V( V, V0, V1, V2, V3 ) \ |
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| 407 | do { \ |
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| 408 | V[0] = V0; \ |
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| 409 | V[1] = V1; \ |
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| 410 | V[2] = V2; \ |
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| 411 | V[3] = V3; \ |
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| 412 | } while(0) |
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| 413 | |||
| 414 | |||
| 415 | |||
| 416 | |||
| 417 | /* Absolute value (for Int, Float, Double): */ |
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| 418 | #define ABSI(X) ((X) < 0 ? -(X) : (X)) |
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| 419 | #define ABSF(X) ((X) < 0.0F ? -(X) : (X)) |
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| 420 | #define ABSD(X) ((X) < 0.0 ? -(X) : (X)) |
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| 421 | |||
| 422 | |||
| 423 | |||
| 424 | /* Round a floating-point value to the nearest integer: */ |
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| 425 | #define ROUNDF(X) ( (X)<0.0F ? ((GLint) ((X)-0.5F)) : ((GLint) ((X)+0.5F)) ) |
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| 426 | |||
| 427 | |||
| 428 | /* Compute ceiling of integer quotient of A divided by B: */ |
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| 429 | #define CEILING( A, B ) ( (A) % (B) == 0 ? (A)/(B) : (A)/(B)+1 ) |
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| 430 | |||
| 431 | |||
| 432 | /* Clamp X to [MIN,MAX]: */ |
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| 433 | #define CLAMP( X, MIN, MAX ) ( (X)<(MIN) ? (MIN) : ((X)>(MAX) ? (MAX) : (X)) ) |
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| 434 | |||
| 435 | /* Assign X to CLAMP(X, MIN, MAX) */ |
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| 436 | #define CLAMP_SELF(x, mn, mx) \ |
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| 437 | ( (x)<(mn) ? ((x) = (mn)) : ((x)>(mx) ? ((x)=(mx)) : (x)) ) |
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| 438 | |||
| 439 | |||
| 440 | |||
| 441 | /* Min of two values: */ |
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| 442 | #define MIN2( A, B ) ( (A)<(B) ? (A) : (B) ) |
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| 443 | |||
| 444 | /* MAX of two values: */ |
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| 445 | #define MAX2( A, B ) ( (A)>(B) ? (A) : (B) ) |
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| 446 | |||
| 447 | /* Dot product of two 2-element vectors */ |
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| 448 | #define DOT2( a, b ) ( (a)[0]*(b)[0] + (a)[1]*(b)[1] ) |
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| 449 | |||
| 450 | /* Dot product of two 3-element vectors */ |
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| 451 | #define DOT3( a, b ) ( (a)[0]*(b)[0] + (a)[1]*(b)[1] + (a)[2]*(b)[2] ) |
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| 452 | |||
| 453 | /* Dot product of two 4-element vectors */ |
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| 454 | #define DOT4( a, b ) ( (a)[0]*(b)[0] + (a)[1]*(b)[1] + \ |
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| 455 | (a)[2]*(b)[2] + (a)[3]*(b)[3] ) |
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| 456 | |||
| 457 | #define DOT4V(v,a,b,c,d) (v[0]*(a) + v[1]*(b) + v[2]*(c) + v[3]*(d)) |
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| 458 | |||
| 459 | |||
| 460 | #define CROSS3(n, u, v) \ |
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| 461 | do { \ |
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| 462 | (n)[0] = (u)[1]*(v)[2] - (u)[2]*(v)[1]; \ |
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| 463 | (n)[1] = (u)[2]*(v)[0] - (u)[0]*(v)[2]; \ |
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| 464 | (n)[2] = (u)[0]*(v)[1] - (u)[1]*(v)[0]; \ |
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| 465 | } while (0) |
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| 466 | |||
| 467 | |||
| 468 | |||
| 469 | /* Generic color packing macros |
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| 470 | * XXX We may move these into texutil.h at some point. |
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| 471 | */ |
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| 472 | |||
| 473 | #define PACK_COLOR_8888( a, b, c, d ) \ |
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| 474 | (((a) << 24) | ((b) << 16) | ((c) << 8) | (d)) |
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| 475 | |||
| 476 | #define PACK_COLOR_888( a, b, c ) \ |
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| 477 | (((a) << 16) | ((b) << 8) | (c)) |
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| 478 | |||
| 479 | #define PACK_COLOR_565( a, b, c ) \ |
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| 480 | ((((a) & 0xf8) << 8) | (((b) & 0xfc) << 3) | (((c) & 0xf8) >> 3)) |
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| 481 | |||
| 482 | #define PACK_COLOR_1555( a, b, c, d ) \ |
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| 483 | ((((b) & 0xf8) << 7) | (((c) & 0xf8) << 2) | (((d) & 0xf8) >> 3) | \ |
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| 484 | ((a) ? 0x8000 : 0)) |
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| 485 | |||
| 486 | #define PACK_COLOR_4444( a, b, c, d ) \ |
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| 487 | ((((a) & 0xf0) << 8) | (((b) & 0xf0) << 4) | ((c) & 0xf0) | ((d) >> 4)) |
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| 488 | |||
| 489 | #define PACK_COLOR_88( a, b ) \ |
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| 490 | (((a) << 8) | (b)) |
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| 491 | |||
| 492 | #define PACK_COLOR_332( a, b, c ) \ |
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| 493 | (((a) & 0xe0) | (((b) & 0xe0) >> 3) | (((c) & 0xc0) >> 6)) |
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| 494 | |||
| 495 | |||
| 496 | #ifdef MESA_BIG_ENDIAN |
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| 497 | |||
| 498 | #define PACK_COLOR_8888_LE( a, b, c, d ) PACK_COLOR_8888( d, c, b, a ) |
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| 499 | |||
| 500 | #define PACK_COLOR_565_LE( a, b, c ) \ |
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| 501 | (((a) & 0xf8) | (((b) & 0xe0) >> 5) | (((b) & 0x1c) << 11) | \ |
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| 502 | (((c) & 0xf8) << 5)) |
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| 503 | |||
| 504 | #define PACK_COLOR_1555_LE( a, b, c, d ) \ |
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| 505 | ((((b) & 0xf8) >> 1) | (((c) & 0xc0) >> 6) | (((c) & 0x38) << 10) | \ |
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| 506 | (((d) & 0xf8) << 5) | ((a) ? 0x80 : 0)) |
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| 507 | |||
| 508 | #define PACK_COLOR_4444_LE( a, b, c, d ) PACK_COLOR_4444( c, d, a, b ) |
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| 509 | |||
| 510 | #define PACK_COLOR_88_LE( a, b ) PACK_COLOR_88( b, a ) |
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| 511 | |||
| 512 | #else /* little endian */ |
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| 513 | |||
| 514 | #define PACK_COLOR_8888_LE( a, b, c, d ) PACK_COLOR_8888( a, b, c, d ) |
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| 515 | |||
| 516 | #define PACK_COLOR_565_LE( a, b, c ) PACK_COLOR_565( a, b, c ) |
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| 517 | |||
| 518 | #define PACK_COLOR_1555_LE( a, b, c, d ) PACK_COLOR_1555( a, b, c, d ) |
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| 519 | |||
| 520 | #define PACK_COLOR_4444_LE( a, b, c, d ) PACK_COLOR_4444( a, b, c, d ) |
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| 521 | |||
| 522 | #define PACK_COLOR_88_LE( a, b ) PACK_COLOR_88( a, b ) |
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| 523 | |||
| 524 | #endif /* endianness */ |
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| 525 | |||
| 526 | |||
| 527 | #endif |