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dpavlin |
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/* |
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* libhfs - library for reading and writing Macintosh HFS volumes |
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* |
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* Copyright (C) 2000 Klaus Halfmann <klaus.halfmann@feri.de> |
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* Original work 1996-1998 Robert Leslie <rob@mars.org> |
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* |
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* This file defines some byte swapping function. I did not find this |
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* in any standard or linux way. |
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* |
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* This program is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation; either version 2 of the License, or |
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* (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
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* |
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*/ |
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#include "tools/endianess.h" |
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#include "apple.h" |
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/* basic fuction: |
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value = swab_inc(ptr); |
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ptr is afterwards incremented by sizeof(value) |
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*/ |
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#define bswap_16(i) createHostInt(&(i), 2, big_endian) |
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#define bswap_32(i) createHostInt(&(i), 4, big_endian) |
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#define bswap_64(i) createHostInt64(&(i), 8, big_endian) |
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#define bswabU16(val) bswap_16(val) |
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static inline UInt8 bswabU8_inc(char **ptr) |
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{ |
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UInt8 v = *(UInt8 *)*ptr; |
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*ptr += 1; |
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return v; |
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} |
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static inline UInt16 bswabU16_inc(char **ptr) |
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{ |
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UInt16 v = *(UInt16 *)*ptr; |
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*ptr += 2; |
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return bswap_16(v); |
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} |
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static inline UInt32 bswabU32_inc(char **ptr) |
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{ |
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UInt32 v = *(UInt32 *)*ptr; |
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*ptr += 4; |
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return bswap_32(v); |
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} |
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static inline APPLEUInt64 bswabU64_inc(char **ptr) |
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{ |
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APPLEUInt64 v = *(APPLEUInt64 *)*ptr; |
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*ptr += 8; |
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return bswap_64(v); |
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} |
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static inline void bstoreU8_inc(char **ptr, UInt8 val) |
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{ |
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UInt8 **p = (UInt8 **)ptr; |
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**p = val; |
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*ptr += 1; |
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} |
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static inline void bstoreU16_inc(char **ptr, UInt16 val) |
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{ |
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UInt16 **p = (UInt16 **)ptr; |
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**p = bswap_16(val); |
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*ptr += 2; |
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} |
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static inline void bstoreU32_inc(char **ptr, UInt32 val) |
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{ |
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UInt32 **p = (UInt32 **)ptr; |
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**p = bswap_32(val); |
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*ptr += 4; |
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} |
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static inline void bstoreU64_inc(char **ptr, APPLEUInt64 val) |
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{ |
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APPLEUInt64 **p = (APPLEUInt64 **)ptr; |
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**p = bswap_64(val); |
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*ptr += 8; |
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} |
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