sound.c

   1
   2 /**
   3  *
   4  * Tennix! SDL Port
   5  * Copyright (C) 2003, 2007, 2008 Thomas Perl <thp@perli.net>
   6  *
   7  * This program is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU General Public License
   9  * as published by the Free Software Foundation; either version 2
  10  * of the License, or (at your option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License
  18  * along with this program; if not, write to the Free Software
  19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
  20  * MA  02110-1301, USA.
  21  *
  22  **/
  23
  24 #include "tennix.h"
  25 #include "sound.h"
  26
  27 static Sound* sounds;
  28
  29 #include "data/sounds_data.c"
  30 static const ResourceData samples[] = {
  31     RESOURCE(racket1),
  32     RESOURCE(racket2),
  33     RESOURCE(ground1),
  34     RESOURCE(ground2),
  35     RESOURCE(audience),
  36     RESOURCE(applause),
  37     RESOURCE(out),
  38     RESOURCE(background),
  39     RESOURCE(mouseover),
  40     RESOURCE(mouseclick)
  41 };
  42
  43 void init_sound() {
  44     int i;
  45     Mix_Chunk* data;
  46
  47     if( Mix_OpenAudio( 44100, AUDIO_S16SYS, 2, 1024) < 0) {
  48         fprintf( stderr, "Error initializing SDL_mixer: %s\n", Mix_GetError());
  49     }
  50
  51     sounds = (Sound*)calloc(SOUND_MAX, sizeof(Sound));
  52
  53     for( i=0; i<SOUND_MAX; i++) {
  54         data = Mix_LoadWAV_RW(SDL_RWFromConstMem(samples[i].data, samples[i].size), 1);
  55         if( !data) {
  56             fprintf( stderr, "Error: %s\n", SDL_GetError());
  57             continue;
  58         }
  59
  60         sounds[i].data = data;
  61     }
  62
  63 }
  64
  65 void play_sample_n(sound_id id, int n)
  66 {
  67     if (id >= SOUND_MAX) {
  68         fprintf(stderr, "Cannot play sound #%d.\n", id);
  69         return;
  70     }
  71
  72     if (n == -2) {
  73         Mix_FadeInChannel(id%8, sounds[id].data, -1, FADE_IN_MS);
  74     } else {
  75         Mix_PlayChannel(id%8, sounds[id].data, n);
  76     }
  77
  78     if (id == SOUND_RACKET) {
  79         stop_sample(SOUND_APPLAUSE);
  80     }
  81 }
  82
  83 void stop_sample(sound_id id)
  84 {
  85     Mix_FadeOutChannel(id%8, FADE_OUT_MS);
  86 }
  87
  88 void pan_sample(sound_id id, float position)
  89 {
  90     if (position == 0.5) {
  91         Mix_SetPanning(id%8, 255, 255);
  92     }
  93     else {
  94         Mix_SetPanning(id%8, 255*(1.0-position), 255*(position));
  95     }
  96 }
  97