/* Function: al_set_voice_playing
*/
bool al_set_voice_playing(ALLEGRO_VOICE *voice, bool val)
{
ASSERT(voice);
if (!voice->attached_stream) {
ALLEGRO_DEBUG("Voice has no attachment\n");
return false;
}
if (voice->is_streaming) {
ALLEGRO_WARN("Attempted to change the playing state of a voice "
"with a streaming attachment (mixer or audiostreams)\n");
return false;
}
else {
bool playing = al_get_voice_playing(voice);
if (playing == val) {
if (playing) {
ALLEGRO_DEBUG("Voice is already playing\n");
}
else {
ALLEGRO_DEBUG("Voice is already stopped\n");
}
return true;
}
return _al_kcm_set_voice_playing(voice, voice->mutex, val);
}
}
/* Function: al_detach_voice
*/
void al_detach_voice(ALLEGRO_VOICE *voice)
{
ASSERT(voice);
if (!voice->attached_stream) {
return;
}
al_lock_mutex(voice->mutex);
if (!voice->is_streaming) {
ALLEGRO_SAMPLE_INSTANCE *spl = voice->attached_stream;
spl->pos = al_get_voice_position(voice);
spl->pos <<= MIXER_FRAC_SHIFT;
spl->is_playing = al_get_voice_playing(voice);
voice->driver->stop_voice(voice);
voice->driver->unload_voice(voice);
}
else {
voice->driver->stop_voice(voice);
}
_al_kcm_stream_set_mutex(voice->attached_stream, NULL);
voice->attached_stream->parent.u.voice = NULL;
voice->attached_stream = NULL;
al_unlock_mutex(voice->mutex);
}
/* Function: al_get_sample_instance_playing
*/
bool al_get_sample_instance_playing(const ALLEGRO_SAMPLE_INSTANCE *spl)
{
ASSERT(spl);
if (spl->parent.u.ptr && spl->parent.is_voice) {
ALLEGRO_VOICE *voice = spl->parent.u.voice;
return al_get_voice_playing(voice);
}
return spl->is_playing;
}
/* Function: al_destroy_voice
*/
void al_destroy_voice(ALLEGRO_VOICE *voice)
{
if (voice) {
_al_kcm_unregister_destructor(voice);
al_detach_voice(voice);
ASSERT(al_get_voice_playing(voice) == false);
/* We do NOT lock the voice mutex when calling this method. */
voice->driver->deallocate_voice(voice);
al_destroy_mutex(voice->mutex);
al_destroy_cond(voice->cond);
al_free(voice);
}
}
/* Function: al_set_voice_playing
*/
bool al_set_voice_playing(ALLEGRO_VOICE *voice, bool val)
{
if (voice->attached_stream && !voice->is_streaming) {
bool playing = al_get_voice_playing(voice);
if (playing == val) {
if (playing)
TRACE("Voice is already playing\n");
else
TRACE("Voice is already stopped\n");
return true;
}
// XXX change methods
if (val)
return voice->driver->start_voice(voice) == 0;
else
return voice->driver->stop_voice(voice) == 0;
}
else {
TRACE("Voice has no sample or mixer attached\n");
return false;
}
}
