sound.c

   1 #include "args.h"
   2 #include "sound.h"
   3 #include "config.h"
   4
   5 #define TUNE_TITLE_PAGE         0
   6 #define TUNE_GAMEPLAY           1
   7 #define TUNE_HIGH_SCORE_ENTRY   2
   8 #define NUM_TUNES               3
   9
  10 #define SOUND_BANG              0
  11 #define NUM_SOUNDS              4
  12
  13 static Mix_Music *music[NUM_TUNES];
  14 static int music_volume[NUM_TUNES] = {128,128,128};
  15 static Mix_Chunk *wav[NUM_SOUNDS];
  16
  17 int audio_rate;
  18 Uint16 audio_format;
  19 int audio_channels;
  20
  21 char *add_path(char *);
  22 char *wav_file[] = {
  23         "sounds/booom.wav",
  24         "sounds/cboom.wav",
  25         "sounds/boom.wav",
  26         "sounds/bzboom.wav"
  27 };
  28
  29 char *tune_file[] = {
  30         "music/magic.mod",
  31         "music/getzznew.mod",
  32         "music/4est_fulla3s.mod"
  33 };
  34
  35 int
  36 init_sound() {
  37         // Return 1 if the sound is ready to roll, and 0 if not.
  38
  39         int i;
  40         debug(printf ("Initialise sound\n"));
  41
  42         // Initialise output with SDL_mixer
  43         if (Mix_OpenAudio(MIX_DEFAULT_FREQUENCY, AUDIO_S16, MIX_DEFAULT_CHANNELS, 4096) < 0) {
  44         fprintf(stderr, "Couldn't open SDL_mixer audio: %s\n", SDL_GetError());
  45         return 0;
  46         }
  47
  48         debug(
  49                         // What kind of sound did we get?  Ah who cares. As long as it can play
  50                         // some basic bangs and simple music.
  51                         Mix_QuerySpec(&audio_rate, &audio_format, &audio_channels);
  52                         printf("Opened audio at %d Hz %d bit %s\n", audio_rate,
  53                                 (audio_format&0xFF),
  54                                 (audio_channels > 1) ? "stereo" : "mono");
  55                         )
  56
  57         // Preload all the tunes into memory
  58         for (i=0; i<NUM_TUNES; i++) {
  59                 if (!(music[i] = Mix_LoadMUS(add_path(tune_file[i])))) {
  60                         printf ("Failed to load %s\n",add_path(tune_file[i]));
  61                 }
  62         }
  63
  64         // Preload all the wav files into memory
  65         for (i=0; i<NUM_SOUNDS; i++) {
  66                 wav[i] = Mix_LoadWAV(add_path(wav_file[i]));
  67         }
  68
  69         return 1;
  70 }
  71
  72 void
  73 play_sound(int i)  {
  74         if(!opt_sound) return;
  75         debug(printf ("play sound %d on first free channel\n",i));
  76         Mix_PlayChannel(-1, wav[i], 0);
  77 }/*}}}*/
  78
  79 int playing=-1;
  80
  81
  82 void
  83 play_tune(int i) {/*{{{*/
  84         if(!opt_music) return;
  85         if (playing==i)
  86         return;
  87         if (playing) {
  88                 Mix_FadeOutMusic(1500);
  89                 debug(printf("Stop playing %d\n",playing));
  90         }
  91         debug(
  92                         printf ("Play music %d\n",i);
  93                         printf ("volume %d\n",music_volume[i]);
  94                         )
  95         Mix_FadeInMusic(music[i],-1,2000);
  96         Mix_VolumeMusic(music_volume[i]);
  97
  98         playing = i;
  99 }
 100
 101 /*
 102  *
 103  * The init_sound() routine is called first.
 104  * The play_sound() routine is called with the index number of the sound we wish to play.
 105  * The play_tune() routine is called with the index number of the tune we wish to play.
 106  *
 107  */