61 lines
1.6 KiB
C
61 lines
1.6 KiB
C
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/*
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Copyright (c) 2011, 2012, Simon Howard
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Permission to use, copy, modify, and/or distribute this software
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for any purpose with or without fee is hereby granted, provided
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that the above copyright notice and this permission notice appear
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in all copies.
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THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
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WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
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WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
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AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR
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CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
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LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
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NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
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CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#include "lha_endian.h"
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uint16_t lha_decode_uint16(uint8_t *buf)
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{
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return (uint16_t) (buf[0] | (buf[1] << 8));
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}
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uint32_t lha_decode_uint32(uint8_t *buf)
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{
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return ((uint32_t) buf[0])
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| ((uint32_t) buf[1] << 8)
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| ((uint32_t) buf[2] << 16)
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| ((uint32_t) buf[3] << 24);
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}
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uint64_t lha_decode_uint64(uint8_t *buf)
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{
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return ((uint64_t) buf[0])
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| ((uint64_t) buf[1] << 8)
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| ((uint64_t) buf[2] << 16)
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| ((uint64_t) buf[3] << 24)
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| ((uint64_t) buf[4] << 32)
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| ((uint64_t) buf[5] << 40)
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| ((uint64_t) buf[6] << 48)
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| ((uint64_t) buf[7] << 56);
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}
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uint16_t lha_decode_be_uint16(uint8_t *buf)
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{
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return (uint16_t) ((buf[0] << 8) | buf[1]);
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}
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uint32_t lha_decode_be_uint32(uint8_t *buf)
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{
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return ((uint32_t) buf[0] << 24)
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| ((uint32_t) buf[1] << 16)
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| ((uint32_t) buf[2] << 8)
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| ((uint32_t) buf[3]);
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}
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