snd.c

   1 #include "snd.h"
   2 #include <SDL/SDL.h>
   3 #include <SDL/SDL_mixer.h>
   4 #include <stdlib.h>
   5 #include <string.h>
   6
   7 typedef struct{
   8         Mix_Chunk *sound;
   9         char *filename;
  10 }TSound;
  11
  12 typedef struct{
  13         TSound *sounds;
  14         int allocated;
  15         int no_sounds;
  16 }TSoundLibrary;
  17
  18 TSoundLibrary g_snd_lib;
  19
  20 int RegenerateSounds(){
  21         printf("RegenerateSounds not implemented\n");
  22         return 0;
  23 };
  24
  25 void InvalidateSounds(){
  26         printf("InvalidateSounds not implemented\n");
  27 };
  28
  29 void PlaySound(int id){
  30         int channel;
  31         if(id<0 || id>=g_snd_lib.no_sounds) return;
  32         channel = Mix_PlayChannel(id, g_snd_lib.sounds[id].sound, 0);
  33         if(channel == -1) {
  34                 fprintf(stderr, "Unable to play WAV file: %s\n", Mix_GetError());
  35         }
  36         printf("Play sound %d\n",id);
  37 };
  38
  39 int LoadSound(char *path){
  40         int i;
  41         if((i=(++g_snd_lib.no_sounds))>g_snd_lib.allocated){
  42                 g_snd_lib.allocated *=2;
  43                 g_snd_lib.allocated +=1;
  44                 g_snd_lib.sounds = realloc(g_snd_lib.sounds, sizeof(TSound)* g_snd_lib.allocated);
  45         };
  46         i--;
  47         g_snd_lib.sounds[i].filename = calloc(strlen(path)+1,sizeof(char));
  48         strcpy(g_snd_lib.sounds[i].filename, path);
  49         g_snd_lib.sounds[i].sound = Mix_LoadWAV(path);
  50         if(g_snd_lib.sounds[i].sound == NULL) {
  51                 fprintf(stderr, "Unable to load WAV file: %s\n", Mix_GetError());
  52         }
  53
  54         return i;
  55 };
  56
  57 void DestroySound(int id){
  58         printf("DestroySound not implemented\n");
  59 };
  60
  61 void SoundInit(){
  62         int audio_rate = 22050;
  63         Uint16 audio_format = AUDIO_S16SYS;
  64         int audio_channels = 2;
  65         int audio_buffers = 4096;
  66
  67         if(Mix_OpenAudio(audio_rate, audio_format, audio_channels, audio_buffers) != 0) {
  68                 fprintf(stderr, "Unable to initialize audio: %s\n", Mix_GetError());
  69                 exit(1);
  70         }
  71
  72         memset(&g_snd_lib, 0, sizeof(TSoundLibrary));
  73 };
  74 void SoundKill(){
  75         Mix_CloseAudio();
  76 };
  77
  78 void SoundDestroyAll(){
  79         printf("SoundDestroyAll not implemented\n");
  80 };