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author | Twinaphex | 2019-05-14 11:44:06 +0200 |
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committer | GitHub | 2019-05-14 11:44:06 +0200 |
commit | 80209d1715398a16b6ace1c2e4cd0aab5c00248d (patch) | |
tree | b7f82140860acabb2d0e3a5216f78bf98691c267 /deps/flac-1.3.2/src/libFLAC/include/private/crc.h | |
parent | 5ffd1f23eb970679dfe8b540bc3df8e776dc9e17 (diff) | |
parent | ce188d4d7f3b9ad04867c49b424e8497c2ade92b (diff) | |
download | pcsx_rearmed-80209d1715398a16b6ace1c2e4cd0aab5c00248d.tar.gz pcsx_rearmed-80209d1715398a16b6ace1c2e4cd0aab5c00248d.tar.bz2 pcsx_rearmed-80209d1715398a16b6ace1c2e4cd0aab5c00248d.zip |
Merge pull request #280 from aliaspider/master
add CHD support.
Diffstat (limited to 'deps/flac-1.3.2/src/libFLAC/include/private/crc.h')
-rw-r--r-- | deps/flac-1.3.2/src/libFLAC/include/private/crc.h | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/deps/flac-1.3.2/src/libFLAC/include/private/crc.h b/deps/flac-1.3.2/src/libFLAC/include/private/crc.h new file mode 100644 index 0000000..294f60e --- /dev/null +++ b/deps/flac-1.3.2/src/libFLAC/include/private/crc.h @@ -0,0 +1,62 @@ +/* libFLAC - Free Lossless Audio Codec library + * Copyright (C) 2000-2009 Josh Coalson + * Copyright (C) 2011-2016 Xiph.Org Foundation + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * - Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * - Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * - Neither the name of the Xiph.org Foundation nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF + * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING + * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef FLAC__PRIVATE__CRC_H +#define FLAC__PRIVATE__CRC_H + +#include "FLAC/ordinals.h" + +/* 8 bit CRC generator, MSB shifted first +** polynomial = x^8 + x^2 + x^1 + x^0 +** init = 0 +*/ +extern FLAC__byte const FLAC__crc8_table[256]; +#define FLAC__CRC8_UPDATE(data, crc) (crc) = FLAC__crc8_table[(crc) ^ (data)]; +void FLAC__crc8_update(const FLAC__byte data, FLAC__uint8 *crc); +void FLAC__crc8_update_block(const FLAC__byte *data, unsigned len, FLAC__uint8 *crc); +FLAC__uint8 FLAC__crc8(const FLAC__byte *data, unsigned len); + +/* 16 bit CRC generator, MSB shifted first +** polynomial = x^16 + x^15 + x^2 + x^0 +** init = 0 +*/ +extern unsigned const FLAC__crc16_table[256]; + +#define FLAC__CRC16_UPDATE(data, crc) ((((crc)<<8) & 0xffff) ^ FLAC__crc16_table[((crc)>>8) ^ (data)]) +/* this alternate may be faster on some systems/compilers */ +#if 0 +#define FLAC__CRC16_UPDATE(data, crc) ((((crc)<<8) ^ FLAC__crc16_table[((crc)>>8) ^ (data)]) & 0xffff) +#endif + +unsigned FLAC__crc16(const FLAC__byte *data, unsigned len); + +#endif |