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 //                  http://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_LOOP | SND_CTRL_MUSIC)
  64
  65 #define SND_CTRL_FADE_SOUND             (SND_CTRL_FADE)
  66 #define SND_CTRL_FADE_MUSIC             (SND_CTRL_FADE | SND_CTRL_MUSIC)
  67 #define SND_CTRL_FADE_ALL               (SND_CTRL_FADE | SND_CTRL_ALL_SOUNDS)
  68
  69 #define SND_CTRL_STOP_SOUND             (SND_CTRL_STOP)
  70 #define SND_CTRL_STOP_MUSIC             (SND_CTRL_STOP | SND_CTRL_MUSIC)
  71 #define SND_CTRL_STOP_ALL               (SND_CTRL_STOP | SND_CTRL_ALL_SOUNDS)
  72
  73 #define IS_MUSIC(x)                     ((x).state & SND_CTRL_MUSIC)
  74 #define IS_LOOP(x)                      ((x).state & SND_CTRL_LOOP)
  75 #define IS_FADING(x)                    ((x).state & SND_CTRL_FADE)
  76 #define IS_STOPPING(x)                  ((x).state & SND_CTRL_STOP)
  77 #define IS_RELOADING(x)                 ((x).state & (SND_CTRL_RELOAD_SOUNDS |\
  78                                                       SND_CTRL_RELOAD_MUSIC))
  79 #define ALL_SOUNDS(x)                   ((x).state & SND_CTRL_ALL_SOUNDS)
  80 #define SET_EXPIRE_LOOPS(x)             ((x).state & SND_CTRL_EXPIRE_LOOPS)
  81
  82 #define MAP_NOCONF_MUSIC(x)             (-((x) + 1))
  83 #define UNMAP_NOCONF_MUSIC(x)           MAP_NOCONF_MUSIC(x)
  84
  85
  86 #define SOUND_MIN_VOLUME                0
  87 #define SOUND_MAX_VOLUME                SDL_MIX_MAXVOLUME
  88
  89 #define SOUND_MAX_LEFT                  0
  90 #define SOUND_MAX_RIGHT                 255
  91 #define SOUND_MAX_LEFT2RIGHT            255
  92 #define SOUND_MIDDLE                    (SOUND_MAX_LEFT2RIGHT / 2)
  93
  94
  95 /* general sound functions */
  96 void UnixOpenAudio(void);
  97 void UnixCloseAudio(void);
  98
  99 /* mixer functions */
 100 void Mixer_InitChannels(void);
 101 void StartMixer(void);
 102
 103 /* sound client functions */
 104 void PlayMusic(int);
 105 void PlaySound(int);
 106 void PlaySoundStereo(int, int);
 107 void PlaySoundLoop(int);
 108 void PlaySoundMusic(int);
 109 void PlaySoundExt(int, int, int, int);
 110 void FadeMusic(void);
 111 void FadeSound(int);
 112 void FadeSounds(void);
 113 void FadeSoundsAndMusic(void);
 114 void StopMusic(void);
 115 void StopSound(int);
 116 void StopSounds(void);
 117 void StopSoundExt(int, int);
 118 void ExpireSoundLoops(boolean);
 119
 120 int getSoundListSize();
 121 int getMusicListSize();
 122 struct FileInfo *getSoundListEntry(int);
 123 struct FileInfo *getMusicListEntry(int);
 124 char *getCurrentlyPlayingMusicFilename();
 125 int getSoundListPropertyMappingSize();
 126 int getMusicListPropertyMappingSize();
 127 struct PropertyMapping *getSoundListPropertyMapping();
 128 struct PropertyMapping *getMusicListPropertyMapping();
 129 void InitSoundList(struct ConfigInfo *, int, struct ConfigTypeInfo *,
 130                    char **, char **, char **, char **, char **);
 131 void InitMusicList(struct ConfigInfo *, int, struct ConfigTypeInfo *,
 132                    char **, char **, char **, char **, char **);
 133 void InitReloadCustomSounds(char *);
 134 void InitReloadCustomMusic(char *);
 135 void FreeAllSounds(void);
 136 void FreeAllMusic(void);
 137
 138 #endif