/*
 * OpenAL Bridge - a simple portable library for OpenAL interface
 * Copyright (c) 2009 Vittorio Giovara <vittorio.giovara@gmail.com>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation; version 2 of the License
 *
 * 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 Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser 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 _OALB_GLOBALS_H
#define _OALB_GLOBALS_H

#include <stdio.h>
#include <stdlib.h>
#include "al.h"

#ifndef _WIN32
#include <pthread.h>
#include <syslog.h>
#else
#include <process.h>
#endif


// 1.0 02/03/10 - Defines cross-platform sleep, usleep, etc. [Wu Yongwei]
#ifndef _SLEEP_H
#define _SLEEP_H
#ifdef _WIN32
# if defined(_NEED_SLEEP_ONLY) && (defined(_MSC_VER) || defined(__MINGW32__))
#  include <stdlib.h>
#  define sleep(t) _sleep((t) * 1000)
# else
#  define WIN32_LEAN_AND_MEAN
#  include <windows.h>
#  define sleep(t)  Sleep((t) * 1000)
# endif
# ifndef _NEED_SLEEP_ONLY
#  define msleep(t) Sleep(t)
#  define usleep(t) Sleep((t) / 1000)
# endif
#else
# include <unistd.h>
# ifndef _NEED_SLEEP_ONLY
#  define msleep(t) usleep((t) * 1000)
# endif
#endif
#endif // _SLEEP_H


// check compiler requirements
#if !defined(__BIG_ENDIAN__) && !defined(__LITTLE_ENDIAN__)
#warning __BIG_ENDIAN__ or __LITTLE_ENDIAN__ not found, going to set __LITTLE_ENDIAN__ as default
#define __LITTLE_ENDIAN__ 1
#endif

/* use byteswap macros from the host system, hopefully optimized ones ;-)
 * or define our own version, simple, stupid, straight-forward... */
#ifdef HAVE_BYTESWAP_H
#include <byteswap.h>
#else
#define bswap_16(x)	(((x & 0xFF00) >> 8) | ((x & 0x00FF) << 8))
#define bswap_32(x)	(((x & 0xFF000000) >> 24) | (((x) & 0x00FF0000) >> 8)  | \
                     ((x & 0x0000FF00) << 8)  | (((x) & 0x000000FF) << 24) )
#endif /* HAVE_BYTESWAP_H */

/* swap numbers accordingly to architecture automatically */
#ifdef __LITTLE_ENDIAN__
#define ENDIAN_LITTLE_32(x) x
#define ENDIAN_BIG_32(x)    bswap_32(x)
#define ENDIAN_LITTLE_16(x) x
#define ENDIAN_BIG_16(x)    bswap_16(x)
#elif __BIG_ENDIAN__
#define ENDIAN_LITTLE_32(x) bswap_32(x)
#define ENDIAN_BIG_32(x)    x
#define ENDIAN_LITTLE_16(x) bswap_16(x)
#define ENDIAN_BIG_16(x)    x
#endif

/* file format defines */
#define OGG_FILE_FORMAT         0x4F676753
#define WAV_FILE_FORMAT         0x52494646
#define WAV_HEADER_SUBCHUNK2ID  0x64617461


#endif /*_OALB_GLOBALS_H*/