void al_stream_update()
{
int processed;
ALint state;
if ( source_handle == -1 )
{
return;
}
// Un-queue any buffers, and delete them
qalGetSourcei( source, AL_BUFFERS_PROCESSED, &processed );
if ( processed )
{
while ( processed-- )
{
ALuint buffer;
qalSourceUnqueueBuffers( source, 1, &buffer );
qalDeleteBuffers( 1, &buffer );
}
}
// If it's stopped, release the source
qalGetSourcei( source, AL_SOURCE_STATE, &state );
if ( state == AL_STOPPED )
{
is_playing = qfalse;
qalSourceStop( source );
free_channel();
}
}
/*
* Updates stream sources by removing all played
* buffers and restarting playback if necessary.
*/
static void
AL_StreamUpdate(void)
{
int numBuffers;
ALint state;
/* Un-queue any buffers, and delete them */
qalGetSourcei(streamSource, AL_BUFFERS_PROCESSED, &numBuffers);
while (numBuffers--)
{
ALuint buffer;
qalSourceUnqueueBuffers(streamSource, 1, &buffer);
qalDeleteBuffers(1, &buffer);
active_buffers--;
}
/* Start the streamSource playing if necessary */
qalGetSourcei(streamSource, AL_BUFFERS_QUEUED, &numBuffers);
qalGetSourcei(streamSource, AL_SOURCE_STATE, &state);
if (state == AL_STOPPED)
{
streamPlaying = false;
}
if (!streamPlaying && numBuffers)
{
qalSourcePlay(streamSource);
streamPlaying = true;
}
}
/*
=================
S_AL_StopBackgroundTrack
=================
*/
static
void S_AL_StopBackgroundTrack( void )
{
int num;
if(!musicPlaying)
return;
// Stop playing
qalSourceStop(musicSource);
// De-queue the musicBuffers
qalGetSourcei(musicSource, AL_BUFFERS_PROCESSED, &num);
if(num < NUM_MUSIC_BUFFERS)
Com_Printf(S_COLOR_YELLOW "WARNING: fewer than NUM_MUSIC_BUFFERS buffers can be unqueued\n");
qalSourceUnqueueBuffers(musicSource, NUM_MUSIC_BUFFERS, musicBuffers);
// Destroy the musicBuffers
qalDeleteBuffers(NUM_MUSIC_BUFFERS, musicBuffers);
// Free the musicSource
S_AL_MusicSourceFree();
// Unload the stream
S_AL_CloseMusicFiles();
musicPlaying = qfalse;
}
void S_StopBackgroundTrack( void )
{
bgTrack_t *next;
if( source )
qalSourceStop( source );
if( alloced_buffers ) {
qalSourceUnqueueBuffers( source, MUSIC_BUFFERS, buffers );
qalDeleteBuffers( MUSIC_BUFFERS, buffers );
alloced_buffers = queued_buffers = qfalse;
}
music_source_free();
qalGetError();
while( s_bgTrackHead )
{
next = s_bgTrackHead->anext;
S_CloseMusicTrack( s_bgTrackHead );
S_Free( s_bgTrackHead );
s_bgTrackHead = next;
}
s_bgTrack = NULL;
s_bgTrackHead = NULL;
s_bgTrackBuffering = qfalse;
s_bgTrackPaused = qfalse;
}
void SndAl_StopBackgroundTrack( void )
{
if ( !mus_playing )
{
return;
}
// Stop playing
qalSourceStop( source );
// De-queue the buffers
qalSourceUnqueueBuffers( source, BUFFERS, buffers );
// Destroy the buffers
qalDeleteBuffers( BUFFERS, buffers );
// Free the source
al_mus_source_free();
// Unload the stream
if ( mus_stream )
{
si.StreamClose( mus_stream );
}
mus_stream = NULL;
mus_playing = qfalse;
}
void AL_DeleteSfx( sfx_t *s ) {
sfxcache_t *sc;
ALuint name;
sc = s->cache;
if( !sc ) {
return;
}
name = sc->bufnum;
qalDeleteBuffers( 1, &name );
}
/*
=================
S_StreamRawSamples
Cinematic streaming
=================
*/
void S_StreamRawSamples (const byte *data, int samples, int rate, int width, int channels)
{
int processed, state, size;
unsigned format, buffer;
if (!s_initialized)
return;
if (!s_streamingChannel)
return;
// Unqueue and delete any processed buffers
qalGetSourcei(s_streamingChannel->sourceNum, AL_BUFFERS_PROCESSED, &processed);
if (processed > 0){
while (processed--){
qalSourceUnqueueBuffers(s_streamingChannel->sourceNum, 1, &buffer);
qalDeleteBuffers(1, &buffer);
}
}
// Calculate buffer size
size = samples * width * channels;
// Set buffer format
if (width == 2)
{
if (channels == 2)
format = AL_FORMAT_STEREO16;
else
format = AL_FORMAT_MONO16;
}
else
{
if (channels == 2)
format = AL_FORMAT_STEREO8;
else
format = AL_FORMAT_MONO8;
}
// Upload and queue the new buffer
qalGenBuffers(1, &buffer);
qalBufferData(buffer, format, (byte *)data, size, rate);
qalSourceQueueBuffers(s_streamingChannel->sourceNum, 1, &buffer);
// Update volume
qalSourcef(s_streamingChannel->sourceNum, AL_GAIN, s_sfxVolume->value);
// If not playing, then do so
qalGetSourcei(s_streamingChannel->sourceNum, AL_SOURCE_STATE, &state);
if (state != AL_PLAYING)
qalSourcePlay(s_streamingChannel->sourceNum);
}
/*
* Silence / stop all OpenAL streams
*/
static void
AL_StreamDie ( void )
{
q_int32_t numBuffers;
streamPlaying = false;
qalSourceStop ( streamSource );
/* Un-queue any buffers, and delete them */
qalGetSourcei ( streamSource, AL_BUFFERS_QUEUED, &numBuffers );
while ( numBuffers-- ) {
ALuint buffer;
qalSourceUnqueueBuffers ( streamSource, 1, &buffer );
qalDeleteBuffers ( 1, &buffer );
active_buffers--;
}
}
/*
=================
S_AL_BufferUnload
=================
*/
static void S_AL_BufferUnload(sfxHandle_t sfx)
{
ALenum error;
if(knownSfx[sfx].filename[0] == '\0')
return;
if(!knownSfx[sfx].inMemory)
return;
// Delete it
qalDeleteBuffers(1, &knownSfx[sfx].buffer);
if((error = qalGetError()) != AL_NO_ERROR)
Com_Printf( S_COLOR_RED "ERROR: Can't delete sound buffer for %s\n",
knownSfx[sfx].filename);
knownSfx[sfx].inMemory = qfalse;
}
/*
=================
S_AL_StreamUpdate
=================
*/
static
void S_AL_StreamUpdate( int stream )
{
int numBuffers;
ALint state;
if ((stream < 0) || (stream >= MAX_RAW_STREAMS))
return;
if(streamSourceHandles[stream] == -1)
return;
// Un-queue any buffers, and delete them
qalGetSourcei( streamSources[stream], AL_BUFFERS_PROCESSED, &numBuffers );
while( numBuffers-- )
{
ALuint buffer;
qalSourceUnqueueBuffers(streamSources[stream], 1, &buffer);
qalDeleteBuffers(1, &buffer);
}
// Start the streamSource playing if necessary
qalGetSourcei( streamSources[stream], AL_BUFFERS_QUEUED, &numBuffers );
qalGetSourcei(streamSources[stream], AL_SOURCE_STATE, &state);
if(state == AL_STOPPED)
{
streamPlaying[stream] = qfalse;
// If there are no buffers queued up, release the streamSource
if( !numBuffers )
S_AL_FreeStreamChannel( stream );
}
if( !streamPlaying[stream] && numBuffers )
{
qalSourcePlay( streamSources[stream] );
streamPlaying[stream] = qtrue;
}
}
bool S_UnloadBuffer( sfx_t *sfx )
{
ALenum error;
if( !sfx ) {
return false;
}
if( sfx->filename[0] == '\0' || sfx->isLocked || !sfx->inMemory )
return false;
qalDeleteBuffers( 1, &sfx->buffer );
if( ( error = qalGetError() ) != AL_NO_ERROR )
{
Com_Printf( "Couldn't delete sound buffer for %s (%s)", sfx->filename, S_ErrorMessage( error ) );
sfx->isLocked = true;
return false;
}
sfx->inMemory = false;
return true;
}
/*
=================
S_AL_StopBackgroundTrack
=================
*/
static
void S_AL_StopBackgroundTrack( void )
{
if(!musicPlaying)
return;
// Stop playing
qalSourceStop(musicSource);
// De-queue the musicBuffers
qalSourceUnqueueBuffers(musicSource, NUM_MUSIC_BUFFERS, musicBuffers);
// Destroy the musicBuffers
qalDeleteBuffers(NUM_MUSIC_BUFFERS, musicBuffers);
// Free the musicSource
S_AL_MusicSourceFree();
// Unload the stream
S_AL_CloseMusicFiles();
musicPlaying = qfalse;
}
