mirror of
https://github.com/kichikuou/xsystem35-sdl2.git
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61 lines
1.8 KiB
C
61 lines
1.8 KiB
C
/*
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* LittleEndian.h get little endian value
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*
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* Copyright (C) 1997-1998 Masaki Chikama (Wren) <chikama@kasumi.ipl.mech.nagoya-u.ac.jp>
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* 1998- <masaki-c@is.aist-nara.ac.jp>
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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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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*
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* @version 0.00 97/11/06 初版
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*/
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/* $Id: LittleEndian.h,v 1.6 2000/11/25 13:08:56 chikama Exp $ */
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#ifndef __LITTLEENDIAN__
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#define __LITTLEENDIAN__
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#include <string.h>
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#include <SDL_endian.h>
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static inline int LittleEndian_getDW(const uint8_t *b, int index) {
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uint32_t t;
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memcpy(&t, b + index, sizeof t);
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return SDL_SwapLE32(t);
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}
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static inline int LittleEndian_get3B(const uint8_t *b, int index) {
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uint32_t t = 0;
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memcpy(&t, b + index, 3);
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return SDL_SwapLE32(t);
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}
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static inline int LittleEndian_getW(const uint8_t *b, int index) {
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uint16_t t;
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memcpy(&t, b + index, sizeof t);
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return SDL_SwapLE16(t);
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}
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static inline void LittleEndian_putW(uint16_t num, uint8_t *b, int index) {
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num = SDL_SwapLE16(num);
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memcpy(b + index, &num, sizeof(num));
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}
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static inline void LittleEndian_putDW(uint32_t num, uint8_t *b, int index) {
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num = SDL_SwapLE32(num);
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memcpy(b + index, &num, sizeof(num));
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}
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#endif /* !__LITTLEENDIAN__ */
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