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sound.cpp
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sound.cpp
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#include <allegro5/allegro5.h>
#include <allegro5/allegro_audio.h>
#include <allegro5/allegro_memfile.h>
#include <allegro5/allegro_acodec.h>
Sound::Sound():
own(NULL){
}
/* create from wav file (riff header + pcm) */
Sound::Sound(const char * data, int length):
own(NULL){
loadFromMemory(data, length);
}
void Sound::loadFromMemory(const char * data, int length){
ALLEGRO_FILE * memory = al_open_memfile((void*) data, length, "r");
this->data.sample = al_load_sample_f(memory, ".wav");
al_fclose(memory);
own = new int;
*own = 1;
}
/* load from path */
Sound::Sound(const std::string & path):
own(NULL){
data.sample = al_load_sample(path.c_str());
if (data.sample == NULL){
}
own = new int;
*own = 1;
/* TODO */
/*
data.chunk = Mix_LoadWAV(path.c_str());
if (!data.chunk){
printf("Can't load sound %s\n", path.c_str());
// throw LoadException("Could not load sound " + path);
} else {
own = new int;
*own = 1;
}
*/
}
void Sound::initialize(){
al_install_audio();
al_init_acodec_addon();
al_reserve_samples(8);
}
void Sound::uninitialize(){
}
void Sound::play(){
if (data.sample != NULL){
al_play_sample(data.sample, 1.0, 0.0, 1.0, ALLEGRO_PLAYMODE_ONCE, NULL);
}
}
void Sound::play(double volume, int pan){
/* FIXME: deal with pan */
if (data.sample != NULL){
al_play_sample(data.sample, scale(volume), 0.0, 1.0, ALLEGRO_PLAYMODE_ONCE, NULL);
}
}
void Sound::playLoop(){
if (data.sample != NULL){
al_play_sample(data.sample, scale(1.0), 0.0, 1.0, ALLEGRO_PLAYMODE_LOOP, NULL);
}
}
void Sound::setVolume(double volume){
if (data.sample != NULL){
/* FIXME */
// al_set_sample_instance_gain(data.sample, scale(volume));
}
}
void Sound::stop(){
/* TODO */
}
void Sound::destroy(){
if (own){
*own -= 1;
if ( *own == 0 ){
delete own;
al_destroy_sample(data.sample);
own = NULL;
}
}
}

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