void alSourceUnqueueBuffers(ALuint source, ALsizei n, ALuint* buffers)
{
DEBUGLOGCALL(LCF_OPENAL);
AudioSource* as = audiocontext.getSource(source);
if (as == nullptr)
return;
/* Check if we can unqueue that number of buffers */
int processedBuffers;
if (as->state == SOURCE_STOPPED)
processedBuffers = as->nbQueue();
else
processedBuffers = as->nbQueueProcessed();
if (processedBuffers < n) {
ALSETERROR(AL_INVALID_VALUE);
return;
}
debuglog(LCF_OPENAL, "Unqueueing ", n, " buffers out of ", as->nbQueue());
std::lock_guard<std::mutex> lock(audiocontext.mutex);
/* Save the id of the unqueued buffers */
for (int i=0; i<n; i++) {
buffers[i] = as->buffer_queue[i]->id;
}
/* Remove the buffers from the queue.
* TODO: This is slow on a vector, maybe use forward_list?
*/
as->buffer_queue.erase(as->buffer_queue.begin(), as->buffer_queue.begin()+n);
if (as->state != SOURCE_STOPPED)
as->queue_index -= n;
}
void alGetSourcei(ALuint source, ALenum param, ALint *value)
{
debuglog(LCF_OPENAL, __func__, " call for source ", source);
if (value == nullptr) {
return;
}
AudioSource* as = audiocontext.getSource(source);
if (as == nullptr) {
ALSETERROR(AL_INVALID_NAME);
return;
}
switch(param) {
case AL_BUFFER:
if (! as->buffer_queue.empty())
// TODO: for queued buffers, return the index of current buffer?
*value = as->buffer_queue[0]->id;
else
*value = AL_NONE;
break;
case AL_SOURCE_STATE:
switch(as->state) {
case SOURCE_INITIAL:
*value = AL_INITIAL;
debuglog(LCF_OPENAL, " Get source state INITIAL");
break;
case SOURCE_PLAYING:
*value = AL_PLAYING;
debuglog(LCF_OPENAL, " Get source state PLAYING");
break;
case SOURCE_PAUSED:
*value = AL_PAUSED;
debuglog(LCF_OPENAL, " Get source state PAUSED");
break;
case SOURCE_STOPPED:
*value = AL_STOPPED;
debuglog(LCF_OPENAL, " Get source state STOPPED");
break;
}
break;
case AL_SOURCE_TYPE:
switch(as->source) {
case SOURCE_UNDETERMINED:
*value = AL_UNDETERMINED;
debuglog(LCF_OPENAL, " Get source type UNDETERMINED");
break;
case SOURCE_STATIC:
*value = AL_STATIC;
debuglog(LCF_OPENAL, " Get source type STATIC");
break;
case SOURCE_STREAMING:
*value = AL_STREAMING;
debuglog(LCF_OPENAL, " Get source type STREAMING");
break;
default:
ALSETERROR(AL_INVALID_VALUE);
break;
}
break;
case AL_SOURCE_RELATIVE:
debuglog(LCF_OPENAL, "Operation not supported");
break;
case AL_BUFFERS_QUEUED:
*value = as->nbQueue();
debuglog(LCF_OPENAL, " Get number of queued buffers of ", *value);
break;
case AL_BUFFERS_PROCESSED:
if (as->state == SOURCE_STOPPED)
*value = as->nbQueue();
else if (as->state == SOURCE_INITIAL)
*value = 0;
else
*value = as->nbQueueProcessed();
debuglog(LCF_OPENAL, " Get number of processed queued buffers of ", *value);
break;
case AL_SEC_OFFSET:
case AL_SAMPLE_OFFSET:
case AL_BYTE_OFFSET:
ALfloat res;
alGetSourcef(source, param, &res);
*value = (ALint) res;
break;
default:
ALSETERROR(AL_INVALID_OPERATION);
return;
}
}
