1 /*

     2  * OpenAL Bridge - a simple portable library for OpenAL interface

     3  * Copyright (c) 2009 Vittorio Giovara <vittorio.giovara@gmail.com>

     4  *

     5  * This program is free software; you can redistribute it and/or modify

     6  * it under the terms of the GNU Lesser General Public License as published by

     7  * the Free Software Foundation; version 2 of the License

     8  *

     9  * This program is distributed in the hope that it will be useful,

    10  * but WITHOUT ANY WARRANTY; without even the implied warranty of

    11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

    12  * GNU Lesser General Public License for more details.

    13  *

    14  * You should have received a copy of the GNU Lesser General Public License

    15  * along with this program; if not, write to the Free Software

    16  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA

    17  */

    18 

    19 #ifndef _OALB_GLOBALS_H

    20 #define _OALB_GLOBALS_H

    21 

    22 #include <stdio.h>

    23 #include <stdlib.h>

    24 #include <stdint.h>

    25 #include <stdarg.h>

    26 #include <string.h>

    27 #include <errno.h>

    28 

    29 #ifndef _WIN32

    30 #include <pthread.h>

    31 #include <syslog.h>

    32 #else

    33 #include <process.h>

    34 #define syslog(x,y) fprintf(stderr,y)

    35 #define LOG_INFO 6

    36 #define LOG_ERR 3

    37 #endif

    38 

    39 #include "al.h"

    40 #include "errlib.h"

    41 

    42 

    43 /*control debug verbosity*/

    44 #ifdef TRACE

    45 #ifndef DEBUG

    46 #define DEBUG

    47 #endif

    48 #endif

    49 

    50 /** 1.0 02/03/10 - Defines cross-platform sleep, usleep, etc. [Wu Yongwei] **/

    51 #ifndef _SLEEP_H

    52 #define _SLEEP_H

    53 #ifdef _WIN32

    54 # if defined(_NEED_SLEEP_ONLY) && (defined(_MSC_VER) || defined(__MINGW32__))

    55 #  include <stdlib.h>

    56 #  define sleep(t) _sleep((t) * 1000)

    57 # else

    58 #  define WIN32_LEAN_AND_MEAN

    59 #  include <windows.h>

    60 #  define sleep(t)  Sleep((t) * 1000)

    61 # endif

    62 # ifndef _NEED_SLEEP_ONLY

    63 #  define msleep(t) Sleep(t)

    64 #  define usleep(t) Sleep((t) / 1000)

    65 # endif

    66 #else

    67 # include <unistd.h>

    68 # ifndef _NEED_SLEEP_ONLY

    69 #  define msleep(t) usleep((t) * 1000)

    70 # endif

    71 #endif

    72 #endif /* _SLEEP_H */

    73 

    74 

    75 /* check compiler requirements */    /*FIXME*/

    76 #if !defined(__BIG_ENDIAN__) && !defined(__LITTLE_ENDIAN__)

    77 #warning __BIG_ENDIAN__ or __LITTLE_ENDIAN__ not found, going to set __LITTLE_ENDIAN__ as default

    78 #define __LITTLE_ENDIAN__ 1

    79 //#error Do not know the endianess of this architecture

    80 #endif

    81 

    82 /* use byteswap macros from the host system, hopefully optimized ones ;-) 

    83  * or define our own version, simple, stupid, straight-forward... */

    84 #ifdef HAVE_BYTESWAP_H

    85 #include <byteswap.h>

    86 #else        

    87 #define bswap_16(x)	((((x) & 0xFF00) >> 8) | (((x) & 0x00FF) << 8))

    88 #define bswap_32(x)	((((x) & 0xFF000000) >> 24) | (((x) & 0x00FF0000) >> 8)  | \

    89 (((x) & 0x0000FF00) << 8)  | (((x) & 0x000000FF) << 24) )

    90 #endif /* HAVE_BYTESWAP_H */

    91 

    92 /* swap numbers accordingly to architecture automatically */

    93 #ifdef __LITTLE_ENDIAN__

    94 #define ENDIAN_LITTLE_32(x) x

    95 #define ENDIAN_BIG_32(x)    bswap_32(x)

    96 #define ENDIAN_LITTLE_16(x) x

    97 #define ENDIAN_BIG_16(x)    bswap_16(x)

    98 #elif __BIG_ENDIAN__

    99 #define ENDIAN_LITTLE_32(x) bswap_32(x)

   100 #define ENDIAN_BIG_32(x)    x

   101 #define ENDIAN_LITTLE_16(x) bswap_16(x)

   102 #define ENDIAN_BIG_16(x)    x    

   103 #endif

   104 

   105 

   106 #ifdef __CPLUSPLUS

   107 extern "C" {

   108 #endif 

   109     

   110     /*data type for WAV header*/

   111 #pragma pack(1)

   112     typedef struct _WAV_header_t {

   113         uint32_t ChunkID;

   114         uint32_t ChunkSize;

   115         uint32_t Format;

   116         uint32_t Subchunk1ID;

   117         uint32_t Subchunk1Size;

   118         uint16_t AudioFormat;

   119         uint16_t NumChannels;

   120         uint32_t SampleRate;

   121         uint32_t ByteRate;

   122         uint16_t BlockAlign;

   123         uint16_t BitsPerSample;

   124         uint32_t Subchunk2ID;

   125         uint32_t Subchunk2Size;

   126     } WAV_header_t;

   127 #pragma pack()

   128     

   129     /*data type for passing data between threads*/

   130 #pragma pack(1)

   131     typedef struct _fade_t {

   132         uint32_t index;

   133         uint16_t quantity;

   134     } fade_t;

   135 #pragma pack()

   136     

   137     

   138     /*file format defines*/

   139 #define OGG_FILE_FORMAT 0x4F676753

   140 #define WAV_FILE_FORMAT 0x52494646

   141 #define WAV_HEADER_SUBCHUNK2ID 0x64617461

   142     

   143     

   144     /*other defines*/

   145 #define FADE_IN  0

   146 #define FADE_OUT 1

   147     

   148     char *prog;

   149     

   150 #ifdef __CPLUSPLUS

   151 }

   152 #endif

   153 

   154 #endif /*_OALB_GLOBALS_H*/