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/***************************************************************************
* Copyright (C) 2004, 2005 by Dominic Rath *
* Dominic.Rath@gmx.de *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the *
* Free Software Foundation, Inc., *
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
***************************************************************************/
#ifndef TYPES_H
#define TYPES_H
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#ifndef u8
typedef unsigned char u8;
#endif
#ifndef u16
typedef unsigned short u16;
#endif
#ifndef u32
typedef unsigned int u32;
#endif
#ifndef u64
typedef unsigned long long u64;
#endif
/* DANGER!!!! here be dragons! Note that the pointer in
* memory might be unaligned. On some CPU's, i.e. ARM7,
* the 2 lsb are ignored for 32 bit access, on others
* it will cause an exception and on e.g. x86, it works
* the same as if aligned.
*/
#define le_to_h_u32(x) ((u32)((x)[0] | (x)[1] << 8 | (x)[2] << 16 | (x)[3] << 24))
#define le_to_h_u16(x) ((u16)((x)[0] | (x)[1] << 8))
#define be_to_h_u32(x) ((u32)((x)[3] | (x)[2] << 8 | (x)[1] << 16 | (x)[0] << 24))
#define be_to_h_u16(x) ((u16)((x)[1] | (x)[0] << 8))
#define h_u32_to_le(buf, val) do {\
(buf)[3] = ((val) & 0xff000000) >> 24;\
(buf)[2] = ((val) & 0x00ff0000) >> 16;\
(buf)[1] = ((val) & 0x0000ff00) >> 8;\
(buf)[0] = ((val) & 0x000000ff);\
} while (0)
#define h_u32_to_be(buf, val) do {\
(buf)[0] = ((val) & 0xff000000) >> 24;\
(buf)[1] = ((val) & 0x00ff0000) >> 16;\
(buf)[2] = ((val) & 0x0000ff00) >> 8;\
(buf)[3] = ((val) & 0x000000ff);\
} while (0)
#define h_u16_to_le(buf, val) do {\
(buf)[1] = ((val) & 0xff00) >> 8;\
(buf)[0] = ((val) & 0x00ff) >> 0;\
} while (0)
#define h_u16_to_be(buf, val) do {\
(buf)[0] = ((val) & 0xff00) >> 8;\
(buf)[1] = ((val) & 0x00ff) >> 0;\
} while (0)
#endif /* TYPES_H */
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