src/libgame/sound.h

   1 // ============================================================================
   2 // Artsoft Retro-Game Library
   3 // ----------------------------------------------------------------------------
   4 // (c) 1995-2014 by Artsoft Entertainment
   5 //                  Holger Schemel
   6 //                  info@artsoft.org
   7 //                  https://www.artsoft.org/
   8 // ----------------------------------------------------------------------------
   9 // sound.h
  10 // ============================================================================
  11
  12 #ifndef SOUND_H
  13 #define SOUND_H
  14
  15 #include "system.h"
  16
  17
  18 // values for platform specific sound initialization
  19 #define AUDIO_SAMPLE_RATE_22050         22050
  20
  21 #define AUDIO_FRAGMENT_SIZE_512         512
  22 #define AUDIO_FRAGMENT_SIZE_1024        1024
  23 #define AUDIO_FRAGMENT_SIZE_2048        2048
  24 #define AUDIO_FRAGMENT_SIZE_4096        4096
  25 #define AUDIO_FRAGMENT_SIZE_32768       32768
  26
  27 #define AUDIO_NUM_CHANNELS_MONO         1
  28 #define AUDIO_NUM_CHANNELS_STEREO       2
  29
  30 #define AUDIO_FORMAT_UNKNOWN            (0)
  31 #define AUDIO_FORMAT_U8                 (1 << 0)
  32 #define AUDIO_FORMAT_S16                (1 << 1)
  33 #define AUDIO_FORMAT_LE                 (1 << 2)
  34 #define AUDIO_FORMAT_BE                 (1 << 3)
  35
  36 #define DEFAULT_AUDIO_SAMPLE_RATE       AUDIO_SAMPLE_RATE_22050
  37
  38 #if defined(PLATFORM_WIN32)
  39 #define DEFAULT_AUDIO_FRAGMENT_SIZE     AUDIO_FRAGMENT_SIZE_1024
  40 #else
  41 #define DEFAULT_AUDIO_FRAGMENT_SIZE     AUDIO_FRAGMENT_SIZE_512
  42 #endif
  43
  44 #define NUM_MIXER_CHANNELS              MIX_CHANNELS
  45
  46 #define MUSIC_CHANNEL                   0
  47 #define FIRST_SOUND_CHANNEL             1
  48
  49
  50 // values for PlaySound(), StopSound() and friends
  51 #define SND_CTRL_NONE                   (0)
  52 #define SND_CTRL_MUSIC                  (1 << 0)
  53 #define SND_CTRL_LOOP                   (1 << 1)
  54 #define SND_CTRL_FADE                   (1 << 2)
  55 #define SND_CTRL_STOP                   (1 << 3)
  56 #define SND_CTRL_ALL_SOUNDS             (1 << 4)
  57 #define SND_CTRL_RELOAD_SOUNDS          (1 << 5)
  58 #define SND_CTRL_RELOAD_MUSIC           (1 << 6)
  59 #define SND_CTRL_EXPIRE_LOOPS           (1 << 7)
  60
  61 #define SND_CTRL_PLAY_SOUND             (SND_CTRL_NONE)
  62 #define SND_CTRL_PLAY_LOOP              (SND_CTRL_LOOP)
  63 #define SND_CTRL_PLAY_MUSIC             (SND_CTRL_MUSIC)
  64 #define SND_CTRL_PLAY_MUSIC_LOOP        (SND_CTRL_MUSIC | SND_CTRL_LOOP)
  65
  66 #define SND_CTRL_FADE_SOUND             (SND_CTRL_FADE)
  67 #define SND_CTRL_FADE_MUSIC             (SND_CTRL_FADE | SND_CTRL_MUSIC)
  68 #define SND_CTRL_FADE_ALL               (SND_CTRL_FADE | SND_CTRL_ALL_SOUNDS)
  69
  70 #define SND_CTRL_STOP_SOUND             (SND_CTRL_STOP)
  71 #define SND_CTRL_STOP_MUSIC             (SND_CTRL_STOP | SND_CTRL_MUSIC)
  72 #define SND_CTRL_STOP_ALL               (SND_CTRL_STOP | SND_CTRL_ALL_SOUNDS)
  73
  74 #define IS_MUSIC(x)                     ((x).state & SND_CTRL_MUSIC)
  75 #define IS_LOOP(x)                      ((x).state & SND_CTRL_LOOP)
  76 #define IS_FADING(x)                    ((x).state & SND_CTRL_FADE)
  77 #define IS_STOPPING(x)                  ((x).state & SND_CTRL_STOP)
  78 #define IS_RELOADING(x)                 ((x).state & (SND_CTRL_RELOAD_SOUNDS |\
  79                                                       SND_CTRL_RELOAD_MUSIC))
  80 #define ALL_SOUNDS(x)                   ((x).state & SND_CTRL_ALL_SOUNDS)
  81 #define SET_EXPIRE_LOOPS(x)             ((x).state & SND_CTRL_EXPIRE_LOOPS)
  82
  83 #define MAP_NOCONF_MUSIC(x)             (-((x) + 1))
  84 #define UNMAP_NOCONF_MUSIC(x)           MAP_NOCONF_MUSIC(x)
  85
  86
  87 #define SOUND_MIN_VOLUME                0
  88 #define SOUND_MAX_VOLUME                SDL_MIX_MAXVOLUME
  89
  90 #define SOUND_MAX_LEFT                  0
  91 #define SOUND_MAX_RIGHT                 255
  92 #define SOUND_MAX_LEFT2RIGHT            255
  93 #define SOUND_MIDDLE                    (SOUND_MAX_LEFT2RIGHT / 2)
  94
  95
  96 // general sound functions
  97 void UnixOpenAudio(void);
  98 void UnixCloseAudio(void);
  99
 100 // mixer functions
 101 void Mixer_InitChannels(void);
 102 void StartMixer(void);
 103
 104 // sound client functions
 105 void PlayMusic(int);
 106 void PlayMusicLoop(int);
 107 void PlaySound(int);
 108 void PlaySoundStereo(int, int);
 109 void PlaySoundLoop(int);
 110 void PlaySoundMusic(int);
 111 void PlaySoundMusicLoop(int);
 112 void PlaySoundExt(int, int, int, int);
 113 void FadeMusic(void);
 114 void FadeSound(int);
 115 void FadeSounds(void);
 116 void FadeSoundsAndMusic(void);
 117 void StopMusic(void);
 118 void StopSound(int);
 119 void StopSounds(void);
 120 void StopSoundExt(int, int);
 121 void ExpireSoundLoops(boolean);
 122
 123 int getSoundListSize(void);
 124 int getMusicListSize(void);
 125 struct FileInfo *getSoundListEntry(int);
 126 struct FileInfo *getMusicListEntry(int);
 127 char *getMusicInfoEntryFilename(int);
 128 char *getCurrentlyPlayingMusicFilename(void);
 129 int getSoundListPropertyMappingSize(void);
 130 int getMusicListPropertyMappingSize(void);
 131 struct PropertyMapping *getSoundListPropertyMapping(void);
 132 struct PropertyMapping *getMusicListPropertyMapping(void);
 133 void InitSoundList(struct ConfigInfo *, int, struct ConfigTypeInfo *,
 134                    char **, char **, char **, char **, char **);
 135 void InitMusicList(struct ConfigInfo *, int, struct ConfigTypeInfo *,
 136                    char **, char **, char **, char **, char **);
 137 void InitReloadCustomSounds(char *);
 138 void InitReloadCustomMusic(char *);
 139 void FreeAllSounds(void);
 140 void FreeAllMusic(void);
 141
 142 #endif