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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 4349 | Serge | 1 | /* |
| 2 | * This file is part of FFmpeg. |
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| 3 | * |
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| 4 | * FFmpeg is free software; you can redistribute it and/or |
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| 5 | * modify it under the terms of the GNU Lesser General Public |
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| 6 | * License as published by the Free Software Foundation; either |
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| 7 | * version 2.1 of the License, or (at your option) any later version. |
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| 8 | * |
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| 9 | * FFmpeg is distributed in the hope that it will be useful, |
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| 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 12 | * Lesser General Public License for more details. |
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| 13 | * |
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| 14 | * You should have received a copy of the GNU Lesser General Public |
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| 15 | * License along with FFmpeg; if not, write to the Free Software |
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| 16 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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| 17 | */ |
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| 18 | |||
| 19 | #ifndef AVUTIL_INTREADWRITE_H |
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| 20 | #define AVUTIL_INTREADWRITE_H |
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| 21 | |||
| 22 | #include |
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| 23 | #include "libavutil/avconfig.h" |
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| 24 | #include "attributes.h" |
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| 25 | #include "bswap.h" |
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| 26 | |||
| 27 | typedef union { |
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| 28 | uint64_t u64; |
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| 29 | uint32_t u32[2]; |
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| 30 | uint16_t u16[4]; |
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| 31 | uint8_t u8 [8]; |
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| 32 | double f64; |
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| 33 | float f32[2]; |
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| 34 | } av_alias av_alias64; |
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| 35 | |||
| 36 | typedef union { |
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| 37 | uint32_t u32; |
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| 38 | uint16_t u16[2]; |
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| 39 | uint8_t u8 [4]; |
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| 40 | float f32; |
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| 41 | } av_alias av_alias32; |
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| 42 | |||
| 43 | typedef union { |
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| 44 | uint16_t u16; |
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| 45 | uint8_t u8 [2]; |
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| 46 | } av_alias av_alias16; |
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| 47 | |||
| 48 | /* |
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| 49 | * Arch-specific headers can provide any combination of |
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| 50 | * AV_[RW][BLN](16|24|32|48|64) and AV_(COPY|SWAP|ZERO)(64|128) macros. |
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| 51 | * Preprocessor symbols must be defined, even if these are implemented |
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| 52 | * as inline functions. |
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| 53 | */ |
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| 54 | |||
| 55 | #ifdef HAVE_AV_CONFIG_H |
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| 56 | |||
| 57 | #include "config.h" |
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| 58 | |||
| 59 | #if ARCH_ARM |
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| 60 | # include "arm/intreadwrite.h" |
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| 61 | #elif ARCH_AVR32 |
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| 62 | # include "avr32/intreadwrite.h" |
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| 63 | #elif ARCH_MIPS |
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| 64 | # include "mips/intreadwrite.h" |
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| 65 | #elif ARCH_PPC |
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| 66 | # include "ppc/intreadwrite.h" |
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| 67 | #elif ARCH_TOMI |
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| 68 | # include "tomi/intreadwrite.h" |
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| 69 | #elif ARCH_X86 |
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| 70 | # include "x86/intreadwrite.h" |
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| 71 | #endif |
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| 72 | |||
| 73 | #endif /* HAVE_AV_CONFIG_H */ |
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| 74 | |||
| 75 | /* |
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| 76 | * Map AV_RNXX <-> AV_R[BL]XX for all variants provided by per-arch headers. |
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| 77 | */ |
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| 78 | |||
| 79 | #if AV_HAVE_BIGENDIAN |
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| 80 | |||
| 81 | # if defined(AV_RN16) && !defined(AV_RB16) |
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| 82 | # define AV_RB16(p) AV_RN16(p) |
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| 83 | # elif !defined(AV_RN16) && defined(AV_RB16) |
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| 84 | # define AV_RN16(p) AV_RB16(p) |
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| 85 | # endif |
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| 86 | |||
| 87 | # if defined(AV_WN16) && !defined(AV_WB16) |
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| 88 | # define AV_WB16(p, v) AV_WN16(p, v) |
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| 89 | # elif !defined(AV_WN16) && defined(AV_WB16) |
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| 90 | # define AV_WN16(p, v) AV_WB16(p, v) |
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| 91 | # endif |
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| 92 | |||
| 93 | # if defined(AV_RN24) && !defined(AV_RB24) |
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| 94 | # define AV_RB24(p) AV_RN24(p) |
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| 95 | # elif !defined(AV_RN24) && defined(AV_RB24) |
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| 96 | # define AV_RN24(p) AV_RB24(p) |
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| 97 | # endif |
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| 98 | |||
| 99 | # if defined(AV_WN24) && !defined(AV_WB24) |
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| 100 | # define AV_WB24(p, v) AV_WN24(p, v) |
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| 101 | # elif !defined(AV_WN24) && defined(AV_WB24) |
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| 102 | # define AV_WN24(p, v) AV_WB24(p, v) |
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| 103 | # endif |
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| 104 | |||
| 105 | # if defined(AV_RN32) && !defined(AV_RB32) |
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| 106 | # define AV_RB32(p) AV_RN32(p) |
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| 107 | # elif !defined(AV_RN32) && defined(AV_RB32) |
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| 108 | # define AV_RN32(p) AV_RB32(p) |
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| 109 | # endif |
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| 110 | |||
| 111 | # if defined(AV_WN32) && !defined(AV_WB32) |
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| 112 | # define AV_WB32(p, v) AV_WN32(p, v) |
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| 113 | # elif !defined(AV_WN32) && defined(AV_WB32) |
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| 114 | # define AV_WN32(p, v) AV_WB32(p, v) |
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| 115 | # endif |
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| 116 | |||
| 117 | # if defined(AV_RN48) && !defined(AV_RB48) |
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| 118 | # define AV_RB48(p) AV_RN48(p) |
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| 119 | # elif !defined(AV_RN48) && defined(AV_RB48) |
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| 120 | # define AV_RN48(p) AV_RB48(p) |
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| 121 | # endif |
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| 122 | |||
| 123 | # if defined(AV_WN48) && !defined(AV_WB48) |
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| 124 | # define AV_WB48(p, v) AV_WN48(p, v) |
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| 125 | # elif !defined(AV_WN48) && defined(AV_WB48) |
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| 126 | # define AV_WN48(p, v) AV_WB48(p, v) |
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| 127 | # endif |
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| 128 | |||
| 129 | # if defined(AV_RN64) && !defined(AV_RB64) |
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| 130 | # define AV_RB64(p) AV_RN64(p) |
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| 131 | # elif !defined(AV_RN64) && defined(AV_RB64) |
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| 132 | # define AV_RN64(p) AV_RB64(p) |
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| 133 | # endif |
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| 134 | |||
| 135 | # if defined(AV_WN64) && !defined(AV_WB64) |
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| 136 | # define AV_WB64(p, v) AV_WN64(p, v) |
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| 137 | # elif !defined(AV_WN64) && defined(AV_WB64) |
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| 138 | # define AV_WN64(p, v) AV_WB64(p, v) |
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| 139 | # endif |
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| 140 | |||
| 141 | #else /* AV_HAVE_BIGENDIAN */ |
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| 142 | |||
| 143 | # if defined(AV_RN16) && !defined(AV_RL16) |
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| 144 | # define AV_RL16(p) AV_RN16(p) |
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| 145 | # elif !defined(AV_RN16) && defined(AV_RL16) |
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| 146 | # define AV_RN16(p) AV_RL16(p) |
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| 147 | # endif |
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| 148 | |||
| 149 | # if defined(AV_WN16) && !defined(AV_WL16) |
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| 150 | # define AV_WL16(p, v) AV_WN16(p, v) |
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| 151 | # elif !defined(AV_WN16) && defined(AV_WL16) |
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| 152 | # define AV_WN16(p, v) AV_WL16(p, v) |
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| 153 | # endif |
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| 154 | |||
| 155 | # if defined(AV_RN24) && !defined(AV_RL24) |
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| 156 | # define AV_RL24(p) AV_RN24(p) |
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| 157 | # elif !defined(AV_RN24) && defined(AV_RL24) |
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| 158 | # define AV_RN24(p) AV_RL24(p) |
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| 159 | # endif |
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| 160 | |||
| 161 | # if defined(AV_WN24) && !defined(AV_WL24) |
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| 162 | # define AV_WL24(p, v) AV_WN24(p, v) |
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| 163 | # elif !defined(AV_WN24) && defined(AV_WL24) |
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| 164 | # define AV_WN24(p, v) AV_WL24(p, v) |
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| 165 | # endif |
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| 166 | |||
| 167 | # if defined(AV_RN32) && !defined(AV_RL32) |
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| 168 | # define AV_RL32(p) AV_RN32(p) |
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| 169 | # elif !defined(AV_RN32) && defined(AV_RL32) |
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| 170 | # define AV_RN32(p) AV_RL32(p) |
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| 171 | # endif |
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| 172 | |||
| 173 | # if defined(AV_WN32) && !defined(AV_WL32) |
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| 174 | # define AV_WL32(p, v) AV_WN32(p, v) |
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| 175 | # elif !defined(AV_WN32) && defined(AV_WL32) |
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| 176 | # define AV_WN32(p, v) AV_WL32(p, v) |
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| 177 | # endif |
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| 178 | |||
| 179 | # if defined(AV_RN48) && !defined(AV_RL48) |
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| 180 | # define AV_RL48(p) AV_RN48(p) |
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| 181 | # elif !defined(AV_RN48) && defined(AV_RL48) |
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| 182 | # define AV_RN48(p) AV_RL48(p) |
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| 183 | # endif |
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| 184 | |||
| 185 | # if defined(AV_WN48) && !defined(AV_WL48) |
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| 186 | # define AV_WL48(p, v) AV_WN48(p, v) |
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| 187 | # elif !defined(AV_WN48) && defined(AV_WL48) |
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| 188 | # define AV_WN48(p, v) AV_WL48(p, v) |
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| 189 | # endif |
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| 190 | |||
| 191 | # if defined(AV_RN64) && !defined(AV_RL64) |
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| 192 | # define AV_RL64(p) AV_RN64(p) |
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| 193 | # elif !defined(AV_RN64) && defined(AV_RL64) |
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| 194 | # define AV_RN64(p) AV_RL64(p) |
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| 195 | # endif |
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| 196 | |||
| 197 | # if defined(AV_WN64) && !defined(AV_WL64) |
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| 198 | # define AV_WL64(p, v) AV_WN64(p, v) |
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| 199 | # elif !defined(AV_WN64) && defined(AV_WL64) |
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| 200 | # define AV_WN64(p, v) AV_WL64(p, v) |
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| 201 | # endif |
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| 202 | |||
| 203 | #endif /* !AV_HAVE_BIGENDIAN */ |
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| 204 | |||
| 205 | /* |
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| 206 | * Define AV_[RW]N helper macros to simplify definitions not provided |
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| 207 | * by per-arch headers. |
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| 208 | */ |
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| 209 | |||
| 210 | #if defined(__GNUC__) && !defined(__TI_COMPILER_VERSION__) |
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| 211 | |||
| 212 | union unaligned_64 { uint64_t l; } __attribute__((packed)) av_alias; |
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| 213 | union unaligned_32 { uint32_t l; } __attribute__((packed)) av_alias; |
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| 214 | union unaligned_16 { uint16_t l; } __attribute__((packed)) av_alias; |
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| 215 | |||
| 216 | # define AV_RN(s, p) (((const union unaligned_##s *) (p))->l) |
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| 217 | # define AV_WN(s, p, v) ((((union unaligned_##s *) (p))->l) = (v)) |
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| 218 | |||
| 219 | #elif defined(__DECC) |
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| 220 | |||
| 221 | # define AV_RN(s, p) (*((const __unaligned uint##s##_t*)(p))) |
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| 222 | # define AV_WN(s, p, v) (*((__unaligned uint##s##_t*)(p)) = (v)) |
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| 223 | |||
| 224 | #elif AV_HAVE_FAST_UNALIGNED |
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| 225 | |||
| 226 | # define AV_RN(s, p) (((const av_alias##s*)(p))->u##s) |
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| 227 | # define AV_WN(s, p, v) (((av_alias##s*)(p))->u##s = (v)) |
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| 228 | |||
| 229 | #else |
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| 230 | |||
| 231 | #ifndef AV_RB16 |
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| 232 | # define AV_RB16(x) \ |
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| 233 | ((((const uint8_t*)(x))[0] << 8) | \ |
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| 234 | ((const uint8_t*)(x))[1]) |
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| 235 | #endif |
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| 236 | #ifndef AV_WB16 |
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| 237 | # define AV_WB16(p, darg) do { \ |
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| 238 | unsigned d = (darg); \ |
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| 239 | ((uint8_t*)(p))[1] = (d); \ |
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| 240 | ((uint8_t*)(p))[0] = (d)>>8; \ |
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| 241 | } while(0) |
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| 242 | #endif |
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| 243 | |||
| 244 | #ifndef AV_RL16 |
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| 245 | # define AV_RL16(x) \ |
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| 246 | ((((const uint8_t*)(x))[1] << 8) | \ |
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| 247 | ((const uint8_t*)(x))[0]) |
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| 248 | #endif |
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| 249 | #ifndef AV_WL16 |
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| 250 | # define AV_WL16(p, darg) do { \ |
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| 251 | unsigned d = (darg); \ |
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| 252 | ((uint8_t*)(p))[0] = (d); \ |
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| 253 | ((uint8_t*)(p))[1] = (d)>>8; \ |
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| 254 | } while(0) |
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| 255 | #endif |
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| 256 | |||
| 257 | #ifndef AV_RB32 |
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| 258 | # define AV_RB32(x) \ |
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| 259 | (((uint32_t)((const uint8_t*)(x))[0] << 24) | \ |
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| 260 | (((const uint8_t*)(x))[1] << 16) | \ |
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| 261 | (((const uint8_t*)(x))[2] << 8) | \ |
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| 262 | ((const uint8_t*)(x))[3]) |
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| 263 | #endif |
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| 264 | #ifndef AV_WB32 |
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| 265 | # define AV_WB32(p, darg) do { \ |
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| 266 | unsigned d = (darg); \ |
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| 267 | ((uint8_t*)(p))[3] = (d); \ |
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| 268 | ((uint8_t*)(p))[2] = (d)>>8; \ |
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| 269 | ((uint8_t*)(p))[1] = (d)>>16; \ |
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| 270 | ((uint8_t*)(p))[0] = (d)>>24; \ |
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| 271 | } while(0) |
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| 272 | #endif |
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| 273 | |||
| 274 | #ifndef AV_RL32 |
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| 275 | # define AV_RL32(x) \ |
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| 276 | (((uint32_t)((const uint8_t*)(x))[3] << 24) | \ |
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| 277 | (((const uint8_t*)(x))[2] << 16) | \ |
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| 278 | (((const uint8_t*)(x))[1] << 8) | \ |
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| 279 | ((const uint8_t*)(x))[0]) |
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| 280 | #endif |
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| 281 | #ifndef AV_WL32 |
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| 282 | # define AV_WL32(p, darg) do { \ |
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| 283 | unsigned d = (darg); \ |
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| 284 | ((uint8_t*)(p))[0] = (d); \ |
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| 285 | ((uint8_t*)(p))[1] = (d)>>8; \ |
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| 286 | ((uint8_t*)(p))[2] = (d)>>16; \ |
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| 287 | ((uint8_t*)(p))[3] = (d)>>24; \ |
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| 288 | } while(0) |
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| 289 | #endif |
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| 290 | |||
| 291 | #ifndef AV_RB64 |
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| 292 | # define AV_RB64(x) \ |
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| 293 | (((uint64_t)((const uint8_t*)(x))[0] << 56) | \ |
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| 294 | ((uint64_t)((const uint8_t*)(x))[1] << 48) | \ |
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| 295 | ((uint64_t)((const uint8_t*)(x))[2] << 40) | \ |
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| 296 | ((uint64_t)((const uint8_t*)(x))[3] << 32) | \ |
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| 297 | ((uint64_t)((const uint8_t*)(x))[4] << 24) | \ |
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| 298 | ((uint64_t)((const uint8_t*)(x))[5] << 16) | \ |
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| 299 | ((uint64_t)((const uint8_t*)(x))[6] << 8) | \ |
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| 300 | (uint64_t)((const uint8_t*)(x))[7]) |
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| 301 | #endif |
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| 302 | #ifndef AV_WB64 |
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| 303 | # define AV_WB64(p, darg) do { \ |
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| 304 | uint64_t d = (darg); \ |
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| 305 | ((uint8_t*)(p))[7] = (d); \ |
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| 306 | ((uint8_t*)(p))[6] = (d)>>8; \ |
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| 307 | ((uint8_t*)(p))[5] = (d)>>16; \ |
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| 308 | ((uint8_t*)(p))[4] = (d)>>24; \ |
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| 309 | ((uint8_t*)(p))[3] = (d)>>32; \ |
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| 310 | ((uint8_t*)(p))[2] = (d)>>40; \ |
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| 311 | ((uint8_t*)(p))[1] = (d)>>48; \ |
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| 312 | ((uint8_t*)(p))[0] = (d)>>56; \ |
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| 313 | } while(0) |
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| 314 | #endif |
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| 315 | |||
| 316 | #ifndef AV_RL64 |
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| 317 | # define AV_RL64(x) \ |
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| 318 | (((uint64_t)((const uint8_t*)(x))[7] << 56) | \ |
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| 319 | ((uint64_t)((const uint8_t*)(x))[6] << 48) | \ |
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| 320 | ((uint64_t)((const uint8_t*)(x))[5] << 40) | \ |
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| 321 | ((uint64_t)((const uint8_t*)(x))[4] << 32) | \ |
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| 322 | ((uint64_t)((const uint8_t*)(x))[3] << 24) | \ |
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| 323 | ((uint64_t)((const uint8_t*)(x))[2] << 16) | \ |
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| 324 | ((uint64_t)((const uint8_t*)(x))[1] << 8) | \ |
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| 325 | (uint64_t)((const uint8_t*)(x))[0]) |
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| 326 | #endif |
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| 327 | #ifndef AV_WL64 |
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| 328 | # define AV_WL64(p, darg) do { \ |
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| 329 | uint64_t d = (darg); \ |
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| 330 | ((uint8_t*)(p))[0] = (d); \ |
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| 331 | ((uint8_t*)(p))[1] = (d)>>8; \ |
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| 332 | ((uint8_t*)(p))[2] = (d)>>16; \ |
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| 333 | ((uint8_t*)(p))[3] = (d)>>24; \ |
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| 334 | ((uint8_t*)(p))[4] = (d)>>32; \ |
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| 335 | ((uint8_t*)(p))[5] = (d)>>40; \ |
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| 336 | ((uint8_t*)(p))[6] = (d)>>48; \ |
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| 337 | ((uint8_t*)(p))[7] = (d)>>56; \ |
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| 338 | } while(0) |
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| 339 | #endif |
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| 340 | |||
| 341 | #if AV_HAVE_BIGENDIAN |
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| 342 | # define AV_RN(s, p) AV_RB##s(p) |
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| 343 | # define AV_WN(s, p, v) AV_WB##s(p, v) |
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| 344 | #else |
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| 345 | # define AV_RN(s, p) AV_RL##s(p) |
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| 346 | # define AV_WN(s, p, v) AV_WL##s(p, v) |
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| 347 | #endif |
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| 348 | |||
| 349 | #endif /* HAVE_FAST_UNALIGNED */ |
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| 350 | |||
| 351 | #ifndef AV_RN16 |
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| 352 | # define AV_RN16(p) AV_RN(16, p) |
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| 353 | #endif |
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| 354 | |||
| 355 | #ifndef AV_RN32 |
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| 356 | # define AV_RN32(p) AV_RN(32, p) |
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| 357 | #endif |
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| 358 | |||
| 359 | #ifndef AV_RN64 |
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| 360 | # define AV_RN64(p) AV_RN(64, p) |
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| 361 | #endif |
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| 362 | |||
| 363 | #ifndef AV_WN16 |
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| 364 | # define AV_WN16(p, v) AV_WN(16, p, v) |
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| 365 | #endif |
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| 366 | |||
| 367 | #ifndef AV_WN32 |
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| 368 | # define AV_WN32(p, v) AV_WN(32, p, v) |
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| 369 | #endif |
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| 370 | |||
| 371 | #ifndef AV_WN64 |
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| 372 | # define AV_WN64(p, v) AV_WN(64, p, v) |
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| 373 | #endif |
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| 374 | |||
| 375 | #if AV_HAVE_BIGENDIAN |
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| 376 | # define AV_RB(s, p) AV_RN##s(p) |
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| 377 | # define AV_WB(s, p, v) AV_WN##s(p, v) |
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| 378 | # define AV_RL(s, p) av_bswap##s(AV_RN##s(p)) |
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| 379 | # define AV_WL(s, p, v) AV_WN##s(p, av_bswap##s(v)) |
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| 380 | #else |
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| 381 | # define AV_RB(s, p) av_bswap##s(AV_RN##s(p)) |
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| 382 | # define AV_WB(s, p, v) AV_WN##s(p, av_bswap##s(v)) |
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| 383 | # define AV_RL(s, p) AV_RN##s(p) |
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| 384 | # define AV_WL(s, p, v) AV_WN##s(p, v) |
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| 385 | #endif |
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| 386 | |||
| 387 | #define AV_RB8(x) (((const uint8_t*)(x))[0]) |
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| 388 | #define AV_WB8(p, d) do { ((uint8_t*)(p))[0] = (d); } while(0) |
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| 389 | |||
| 390 | #define AV_RL8(x) AV_RB8(x) |
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| 391 | #define AV_WL8(p, d) AV_WB8(p, d) |
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| 392 | |||
| 393 | #ifndef AV_RB16 |
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| 394 | # define AV_RB16(p) AV_RB(16, p) |
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| 395 | #endif |
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| 396 | #ifndef AV_WB16 |
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| 397 | # define AV_WB16(p, v) AV_WB(16, p, v) |
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| 398 | #endif |
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| 399 | |||
| 400 | #ifndef AV_RL16 |
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| 401 | # define AV_RL16(p) AV_RL(16, p) |
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| 402 | #endif |
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| 403 | #ifndef AV_WL16 |
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| 404 | # define AV_WL16(p, v) AV_WL(16, p, v) |
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| 405 | #endif |
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| 406 | |||
| 407 | #ifndef AV_RB32 |
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| 408 | # define AV_RB32(p) AV_RB(32, p) |
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| 409 | #endif |
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| 410 | #ifndef AV_WB32 |
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| 411 | # define AV_WB32(p, v) AV_WB(32, p, v) |
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| 412 | #endif |
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| 413 | |||
| 414 | #ifndef AV_RL32 |
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| 415 | # define AV_RL32(p) AV_RL(32, p) |
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| 416 | #endif |
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| 417 | #ifndef AV_WL32 |
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| 418 | # define AV_WL32(p, v) AV_WL(32, p, v) |
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| 419 | #endif |
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| 420 | |||
| 421 | #ifndef AV_RB64 |
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| 422 | # define AV_RB64(p) AV_RB(64, p) |
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| 423 | #endif |
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| 424 | #ifndef AV_WB64 |
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| 425 | # define AV_WB64(p, v) AV_WB(64, p, v) |
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| 426 | #endif |
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| 427 | |||
| 428 | #ifndef AV_RL64 |
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| 429 | # define AV_RL64(p) AV_RL(64, p) |
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| 430 | #endif |
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| 431 | #ifndef AV_WL64 |
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| 432 | # define AV_WL64(p, v) AV_WL(64, p, v) |
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| 433 | #endif |
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| 434 | |||
| 435 | #ifndef AV_RB24 |
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| 436 | # define AV_RB24(x) \ |
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| 437 | ((((const uint8_t*)(x))[0] << 16) | \ |
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| 438 | (((const uint8_t*)(x))[1] << 8) | \ |
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| 439 | ((const uint8_t*)(x))[2]) |
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| 440 | #endif |
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| 441 | #ifndef AV_WB24 |
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| 442 | # define AV_WB24(p, d) do { \ |
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| 443 | ((uint8_t*)(p))[2] = (d); \ |
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| 444 | ((uint8_t*)(p))[1] = (d)>>8; \ |
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| 445 | ((uint8_t*)(p))[0] = (d)>>16; \ |
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| 446 | } while(0) |
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| 447 | #endif |
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| 448 | |||
| 449 | #ifndef AV_RL24 |
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| 450 | # define AV_RL24(x) \ |
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| 451 | ((((const uint8_t*)(x))[2] << 16) | \ |
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| 452 | (((const uint8_t*)(x))[1] << 8) | \ |
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| 453 | ((const uint8_t*)(x))[0]) |
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| 454 | #endif |
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| 455 | #ifndef AV_WL24 |
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| 456 | # define AV_WL24(p, d) do { \ |
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| 457 | ((uint8_t*)(p))[0] = (d); \ |
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| 458 | ((uint8_t*)(p))[1] = (d)>>8; \ |
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| 459 | ((uint8_t*)(p))[2] = (d)>>16; \ |
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| 460 | } while(0) |
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| 461 | #endif |
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| 462 | |||
| 463 | #ifndef AV_RB48 |
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| 464 | # define AV_RB48(x) \ |
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| 465 | (((uint64_t)((const uint8_t*)(x))[0] << 40) | \ |
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| 466 | ((uint64_t)((const uint8_t*)(x))[1] << 32) | \ |
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| 467 | ((uint64_t)((const uint8_t*)(x))[2] << 24) | \ |
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| 468 | ((uint64_t)((const uint8_t*)(x))[3] << 16) | \ |
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| 469 | ((uint64_t)((const uint8_t*)(x))[4] << 8) | \ |
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| 470 | (uint64_t)((const uint8_t*)(x))[5]) |
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| 471 | #endif |
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| 472 | #ifndef AV_WB48 |
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| 473 | # define AV_WB48(p, darg) do { \ |
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| 474 | uint64_t d = (darg); \ |
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| 475 | ((uint8_t*)(p))[5] = (d); \ |
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| 476 | ((uint8_t*)(p))[4] = (d)>>8; \ |
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| 477 | ((uint8_t*)(p))[3] = (d)>>16; \ |
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| 478 | ((uint8_t*)(p))[2] = (d)>>24; \ |
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| 479 | ((uint8_t*)(p))[1] = (d)>>32; \ |
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| 480 | ((uint8_t*)(p))[0] = (d)>>40; \ |
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| 481 | } while(0) |
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| 482 | #endif |
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| 483 | |||
| 484 | #ifndef AV_RL48 |
||
| 485 | # define AV_RL48(x) \ |
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| 486 | (((uint64_t)((const uint8_t*)(x))[5] << 40) | \ |
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| 487 | ((uint64_t)((const uint8_t*)(x))[4] << 32) | \ |
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| 488 | ((uint64_t)((const uint8_t*)(x))[3] << 24) | \ |
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| 489 | ((uint64_t)((const uint8_t*)(x))[2] << 16) | \ |
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| 490 | ((uint64_t)((const uint8_t*)(x))[1] << 8) | \ |
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| 491 | (uint64_t)((const uint8_t*)(x))[0]) |
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| 492 | #endif |
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| 493 | #ifndef AV_WL48 |
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| 494 | # define AV_WL48(p, darg) do { \ |
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| 495 | uint64_t d = (darg); \ |
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| 496 | ((uint8_t*)(p))[0] = (d); \ |
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| 497 | ((uint8_t*)(p))[1] = (d)>>8; \ |
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| 498 | ((uint8_t*)(p))[2] = (d)>>16; \ |
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| 499 | ((uint8_t*)(p))[3] = (d)>>24; \ |
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| 500 | ((uint8_t*)(p))[4] = (d)>>32; \ |
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| 501 | ((uint8_t*)(p))[5] = (d)>>40; \ |
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| 502 | } while(0) |
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| 503 | #endif |
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| 504 | |||
| 505 | /* |
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| 506 | * The AV_[RW]NA macros access naturally aligned data |
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| 507 | * in a type-safe way. |
||
| 508 | */ |
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| 509 | |||
| 510 | #define AV_RNA(s, p) (((const av_alias##s*)(p))->u##s) |
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| 511 | #define AV_WNA(s, p, v) (((av_alias##s*)(p))->u##s = (v)) |
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| 512 | |||
| 513 | #ifndef AV_RN16A |
||
| 514 | # define AV_RN16A(p) AV_RNA(16, p) |
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| 515 | #endif |
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| 516 | |||
| 517 | #ifndef AV_RN32A |
||
| 518 | # define AV_RN32A(p) AV_RNA(32, p) |
||
| 519 | #endif |
||
| 520 | |||
| 521 | #ifndef AV_RN64A |
||
| 522 | # define AV_RN64A(p) AV_RNA(64, p) |
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| 523 | #endif |
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| 524 | |||
| 525 | #ifndef AV_WN16A |
||
| 526 | # define AV_WN16A(p, v) AV_WNA(16, p, v) |
||
| 527 | #endif |
||
| 528 | |||
| 529 | #ifndef AV_WN32A |
||
| 530 | # define AV_WN32A(p, v) AV_WNA(32, p, v) |
||
| 531 | #endif |
||
| 532 | |||
| 533 | #ifndef AV_WN64A |
||
| 534 | # define AV_WN64A(p, v) AV_WNA(64, p, v) |
||
| 535 | #endif |
||
| 536 | |||
| 537 | /* |
||
| 538 | * The AV_COPYxxU macros are suitable for copying data to/from unaligned |
||
| 539 | * memory locations. |
||
| 540 | */ |
||
| 541 | |||
| 542 | #define AV_COPYU(n, d, s) AV_WN##n(d, AV_RN##n(s)); |
||
| 543 | |||
| 544 | #ifndef AV_COPY16U |
||
| 545 | # define AV_COPY16U(d, s) AV_COPYU(16, d, s) |
||
| 546 | #endif |
||
| 547 | |||
| 548 | #ifndef AV_COPY32U |
||
| 549 | # define AV_COPY32U(d, s) AV_COPYU(32, d, s) |
||
| 550 | #endif |
||
| 551 | |||
| 552 | #ifndef AV_COPY64U |
||
| 553 | # define AV_COPY64U(d, s) AV_COPYU(64, d, s) |
||
| 554 | #endif |
||
| 555 | |||
| 556 | #ifndef AV_COPY128U |
||
| 557 | # define AV_COPY128U(d, s) \ |
||
| 558 | do { \ |
||
| 559 | AV_COPY64U(d, s); \ |
||
| 560 | AV_COPY64U((char *)(d) + 8, (const char *)(s) + 8); \ |
||
| 561 | } while(0) |
||
| 562 | #endif |
||
| 563 | |||
| 564 | /* Parameters for AV_COPY*, AV_SWAP*, AV_ZERO* must be |
||
| 565 | * naturally aligned. They may be implemented using MMX, |
||
| 566 | * so emms_c() must be called before using any float code |
||
| 567 | * afterwards. |
||
| 568 | */ |
||
| 569 | |||
| 570 | #define AV_COPY(n, d, s) \ |
||
| 571 | (((av_alias##n*)(d))->u##n = ((const av_alias##n*)(s))->u##n) |
||
| 572 | |||
| 573 | #ifndef AV_COPY16 |
||
| 574 | # define AV_COPY16(d, s) AV_COPY(16, d, s) |
||
| 575 | #endif |
||
| 576 | |||
| 577 | #ifndef AV_COPY32 |
||
| 578 | # define AV_COPY32(d, s) AV_COPY(32, d, s) |
||
| 579 | #endif |
||
| 580 | |||
| 581 | #ifndef AV_COPY64 |
||
| 582 | # define AV_COPY64(d, s) AV_COPY(64, d, s) |
||
| 583 | #endif |
||
| 584 | |||
| 585 | #ifndef AV_COPY128 |
||
| 586 | # define AV_COPY128(d, s) \ |
||
| 587 | do { \ |
||
| 588 | AV_COPY64(d, s); \ |
||
| 589 | AV_COPY64((char*)(d)+8, (char*)(s)+8); \ |
||
| 590 | } while(0) |
||
| 591 | #endif |
||
| 592 | |||
| 593 | #define AV_SWAP(n, a, b) FFSWAP(av_alias##n, *(av_alias##n*)(a), *(av_alias##n*)(b)) |
||
| 594 | |||
| 595 | #ifndef AV_SWAP64 |
||
| 596 | # define AV_SWAP64(a, b) AV_SWAP(64, a, b) |
||
| 597 | #endif |
||
| 598 | |||
| 599 | #define AV_ZERO(n, d) (((av_alias##n*)(d))->u##n = 0) |
||
| 600 | |||
| 601 | #ifndef AV_ZERO16 |
||
| 602 | # define AV_ZERO16(d) AV_ZERO(16, d) |
||
| 603 | #endif |
||
| 604 | |||
| 605 | #ifndef AV_ZERO32 |
||
| 606 | # define AV_ZERO32(d) AV_ZERO(32, d) |
||
| 607 | #endif |
||
| 608 | |||
| 609 | #ifndef AV_ZERO64 |
||
| 610 | # define AV_ZERO64(d) AV_ZERO(64, d) |
||
| 611 | #endif |
||
| 612 | |||
| 613 | #ifndef AV_ZERO128 |
||
| 614 | # define AV_ZERO128(d) \ |
||
| 615 | do { \ |
||
| 616 | AV_ZERO64(d); \ |
||
| 617 | AV_ZERO64((char*)(d)+8); \ |
||
| 618 | } while(0) |
||
| 619 | #endif |
||
| 620 | |||
| 621 | #endif /* AVUTIL_INTREADWRITE_H */ |