src/libgame/sound.h

   1 /***********************************************************
   2 * Artsoft Retro-Game Library                               *
   3 *----------------------------------------------------------*
   4 * (c) 1994-2002 Artsoft Entertainment                      *
   5 *               Holger Schemel                             *
   6 *               Detmolder Strasse 189                      *
   7 *               33604 Bielefeld                            *
   8 *               Germany                                    *
   9 *               e-mail: info@artsoft.org                   *
  10 *----------------------------------------------------------*
  11 * sound.h                                                  *
  12 ***********************************************************/
  13
  14 #ifndef SOUND_H
  15 #define SOUND_H
  16
  17 #include "system.h"
  18
  19
  20 #if defined(PLATFORM_UNIX) && !defined(TARGET_SDL)
  21 #define AUDIO_UNIX_NATIVE
  22 #endif
  23
  24 #if defined(PLATFORM_LINUX) || defined(PLATFORM_FREEBSD) || defined(VOXWARE)
  25 #define AUDIO_LINUX_IOCTL
  26 #endif
  27
  28 #if defined(AUDIO_LINUX_IOCTL) || defined(PLATFORM_NETBSD)
  29 #define AUDIO_STREAMING_DSP
  30 #endif
  31
  32 /* values for platform specific sound initialization */
  33 #define AUDIO_SAMPLE_RATE_8000          8000
  34 #define AUDIO_SAMPLE_RATE_22050         22050
  35
  36 #define AUDIO_FRAGMENT_SIZE_512         512
  37 #define AUDIO_FRAGMENT_SIZE_1024        1024
  38 #define AUDIO_FRAGMENT_SIZE_2048        2048
  39 #define AUDIO_FRAGMENT_SIZE_4096        4096
  40
  41 #define AUDIO_NUM_CHANNELS_MONO         1
  42 #define AUDIO_NUM_CHANNELS_STEREO       2
  43
  44 #define AUDIO_FORMAT_UNKNOWN            (0)
  45 #define AUDIO_FORMAT_U8                 (1 << 0)
  46 #define AUDIO_FORMAT_S16                (1 << 1)
  47 #define AUDIO_FORMAT_LE                 (1 << 2)
  48 #define AUDIO_FORMAT_BE                 (1 << 3)
  49
  50 #if defined(AUDIO_UNIX_NATIVE) && !defined(AUDIO_STREAMING_DSP)
  51 #define DEFAULT_AUDIO_SAMPLE_RATE       AUDIO_SAMPLE_RATE_8000
  52 #else
  53 #define DEFAULT_AUDIO_SAMPLE_RATE       AUDIO_SAMPLE_RATE_22050
  54 #endif
  55
  56 #if defined(PLATFORM_WIN32)
  57 #define DEFAULT_AUDIO_FRAGMENT_SIZE     AUDIO_FRAGMENT_SIZE_2048
  58 #else
  59 #define DEFAULT_AUDIO_FRAGMENT_SIZE     AUDIO_FRAGMENT_SIZE_512
  60 #endif
  61
  62 #if defined(TARGET_SDL)
  63 #define NUM_MIXER_CHANNELS              MIX_CHANNELS
  64 #else
  65 #define NUM_MIXER_CHANNELS              8
  66 #endif
  67
  68 #define MUSIC_CHANNEL                   0
  69 #define FIRST_SOUND_CHANNEL             1
  70
  71
  72 /* values for PlaySound(), StopSound() and friends */
  73 #define SND_CTRL_NONE                   (0)
  74 #define SND_CTRL_MUSIC                  (1 << 0)
  75 #define SND_CTRL_LOOP                   (1 << 1)
  76 #define SND_CTRL_FADE                   (1 << 2)
  77 #define SND_CTRL_STOP                   (1 << 3)
  78 #define SND_CTRL_ALL_SOUNDS             (1 << 4)
  79 #define SND_CTRL_RELOAD_SOUNDS          (1 << 5)
  80 #define SND_CTRL_RELOAD_MUSIC           (1 << 6)
  81
  82 #define SND_CTRL_PLAY_SOUND             (SND_CTRL_NONE)
  83 #define SND_CTRL_PLAY_LOOP              (SND_CTRL_LOOP)
  84 #define SND_CTRL_PLAY_MUSIC             (SND_CTRL_LOOP | SND_CTRL_MUSIC)
  85
  86 #define SND_CTRL_FADE_SOUND             (SND_CTRL_FADE)
  87 #define SND_CTRL_FADE_MUSIC             (SND_CTRL_FADE | SND_CTRL_MUSIC)
  88 #define SND_CTRL_FADE_ALL               (SND_CTRL_FADE | SND_CTRL_ALL_SOUNDS)
  89
  90 #define SND_CTRL_STOP_SOUND             (SND_CTRL_STOP)
  91 #define SND_CTRL_STOP_MUSIC             (SND_CTRL_STOP | SND_CTRL_MUSIC)
  92 #define SND_CTRL_STOP_ALL               (SND_CTRL_STOP | SND_CTRL_ALL_SOUNDS)
  93
  94 #define IS_MUSIC(x)                     ((x).state & SND_CTRL_MUSIC)
  95 #define IS_LOOP(x)                      ((x).state & SND_CTRL_LOOP)
  96 #define IS_FADING(x)                    ((x).state & SND_CTRL_FADE)
  97 #define IS_STOPPING(x)                  ((x).state & SND_CTRL_STOP)
  98 #define IS_RELOADING(x)                 ((x).state & (SND_CTRL_RELOAD_SOUNDS |\
  99                                                       SND_CTRL_RELOAD_MUSIC))
 100 #define ALL_SOUNDS(x)                   ((x).state & SND_CTRL_ALL_SOUNDS)
 101
 102 #define SOUND_MIN_VOLUME                0
 103 #if defined(TARGET_SDL)
 104 #define SOUND_MAX_VOLUME                SDL_MIX_MAXVOLUME
 105 #elif defined(TARGET_ALLEGRO)
 106 #define SOUND_MAX_VOLUME                255
 107 #else
 108 #define SOUND_MAX_VOLUME                128
 109 #endif
 110
 111 #define SOUND_MAX_LEFT                  0
 112 #define SOUND_MAX_RIGHT                 255
 113 #define SOUND_MAX_LEFT2RIGHT            255
 114 #define SOUND_MIDDLE                    (SOUND_MAX_LEFT2RIGHT / 2)
 115
 116 /* value for undefined sound effect filename */
 117 #define SND_FILE_UNDEFINED              UNDEFINED_FILENAME
 118
 119
 120 /* general sound functions */
 121 void UnixOpenAudio(void);
 122 void UnixCloseAudio(void);
 123
 124 /* mixer functions */
 125 void Mixer_InitChannels(void);
 126 void StartMixer(void);
 127
 128 /* sound client functions */
 129 void PlayMusic(int);
 130 void PlaySound(int);
 131 void PlaySoundStereo(int, int);
 132 void PlaySoundLoop(int);
 133 void PlaySoundMusic(int);
 134 void PlaySoundExt(int, int, int, int);
 135 void FadeMusic(void);
 136 void FadeSound(int);
 137 void FadeSounds(void);
 138 void StopMusic(void);
 139 void StopSound(int);
 140 void StopSounds(void);
 141 void StopSoundExt(int, int);
 142 struct FileInfo *getCurrentSoundList();
 143 void InitSoundList(struct ConfigInfo *, char **, int);
 144 void InitReloadSounds(char *);
 145 void InitReloadMusic(char *);
 146 void FreeAllSounds(void);
 147 void FreeAllMusic(void);
 148
 149 #endif