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#include <assert.h>
#include <emscripten.h>
#include <SDL2/SDL.h>
#include <SDL2/SDL_mixer.h>
#define WAV_PATH "/sound.wav"
Mix_Chunk *wave = NULL;
void sound_loop_then_quit() {
if (Mix_Playing(-1))
return;
printf("Done audio\n");
Mix_FreeChunk(wave);
Mix_CloseAudio();
emscripten_cancel_main_loop();
printf("Shutting down\n");
exit(0);
}
int main(int argc, char* argv[]){
SDL_version version;
SDL_GetVersion(&version);
printf("Linked against SDL %d.%d.%d.\n",
version.major, version.minor, version.patch);
assert(version.major == 2);
if (SDL_Init(SDL_INIT_AUDIO) < 0) {
puts("Failed to init audio");
return 100;
}
int const frequency = EM_ASM_INT({
var context;
try {
context = new AudioContext();
} catch (e) {
context = new webkitAudioContext(); // safari only
}
return context.sampleRate;
});
if(Mix_OpenAudio(frequency, MIX_DEFAULT_FORMAT, 2, 1024) == -1) {
puts("Failed to open audio");
return 101;
}
wave = Mix_LoadWAV(WAV_PATH);
if (wave == NULL) {
puts("Failed to load audio");
return 102;
}
if (Mix_PlayChannel(-1, wave, 0) == -1) {
puts("Failed to play audio");
return 103;
}
printf("Starting sound play loop\n");
emscripten_set_main_loop(sound_loop_then_quit, 0, 1);
return 0;
}
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