void al_mus_update( void )
{
int processed;
ALint state;
if ( !mus_playing )
{
return;
}
qalGetSourcei( source, AL_BUFFERS_PROCESSED, &processed );
if ( processed )
{
while ( processed-- )
{
ALuint b;
qalSourceUnqueueBuffers( source, 1, &b );
al_mus_process( b );
qalSourceQueueBuffers( source, 1, &b );
}
}
// If it's not still playing, give it a kick
qalGetSourcei( source, AL_SOURCE_STATE, &state );
if ( state == AL_STOPPED )
{
si.Printf( PRINT_ALL, "Musical kick\n" );
qalSourcePlay( source );
}
// Set the gain property
qalSourcef( source, AL_GAIN, s_gain->value * s_musicVolume->value );
}
/*
* 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_MusicUpdate
=================
*/
static
void S_AL_MusicUpdate( void )
{
int numBuffers;
ALint state;
if(!musicPlaying)
return;
qalGetSourcei( musicSource, AL_BUFFERS_PROCESSED, &numBuffers );
while( numBuffers-- )
{
ALuint b;
qalSourceUnqueueBuffers(musicSource, 1, &b);
S_AL_MusicProcess(b);
qalSourceQueueBuffers(musicSource, 1, &b);
}
// Hitches can cause OpenAL to be starved of buffers when streaming.
// If this happens, it will stop playback. This restarts the source if
// it is no longer playing, and if there are buffers available
qalGetSourcei( musicSource, AL_SOURCE_STATE, &state );
qalGetSourcei( musicSource, AL_BUFFERS_QUEUED, &numBuffers );
if( state == AL_STOPPED && numBuffers )
{
Com_DPrintf( S_COLOR_YELLOW "Restarted OpenAL music\n" );
qalSourcePlay(musicSource);
}
// Set the gain property
qalSourcef(musicSource, AL_GAIN, s_alGain->value * s_musicVolume->value);
}
/*
* S_StartSound
*/
static void S_StartSound( sfx_t *sfx, const vec3_t origin, int entNum, int channel, float fvol, float attenuation )
{
src_t *src;
if( !sfx )
return;
src = S_AllocSource( SRCPRI_ONESHOT, entNum, channel );
if( !src )
return;
source_setup( src, sfx, SRCPRI_ONESHOT, entNum, channel, fvol, attenuation );
if( src->attenuation )
{
if( origin )
VectorCopy( origin, src->origin );
else
src->isTracking = qtrue;
}
source_spatialize( src );
qalSourcePlay( src->source );
}
void AL_PlayChannel(channel_t *ch)
{
sfxcache_t *sc = ch->sfx->cache;
#ifdef _DEBUG
if (s_show->integer > 1)
Com_Printf("%s: %s\n", __func__, ch->sfx->name);
#endif
ch->srcnum = s_srcnums[ch - channels];
qalGetError();
qalSourcei(ch->srcnum, AL_BUFFER, sc->bufnum);
//qalSourcei(ch->srcnum, AL_LOOPING, sc->loopstart == -1 ? AL_FALSE : AL_TRUE);
qalSourcei(ch->srcnum, AL_LOOPING, ch->autosound ? AL_TRUE : AL_FALSE);
qalSourcef(ch->srcnum, AL_GAIN, ch->master_vol);
qalSourcef(ch->srcnum, AL_REFERENCE_DISTANCE, SOUND_FULLVOLUME);
qalSourcef(ch->srcnum, AL_MAX_DISTANCE, 8192);
qalSourcef(ch->srcnum, AL_ROLLOFF_FACTOR, ch->dist_mult * (8192 - SOUND_FULLVOLUME));
AL_Spatialize(ch);
// play it
qalSourcePlay(ch->srcnum);
if (qalGetError() != AL_NO_ERROR) {
AL_StopChannel(ch);
}
}
/*
* source_loop
*/
static void source_loop( int priority, sfx_t *sfx, int entNum, float fvol, float attenuation )
{
src_t *src;
qboolean new_source = qfalse;
if( !sfx )
return;
if( entNum < 0 )
return;
// Do we need to start a new sound playing?
if( !entlist[entNum].src )
{
src = S_AllocSource( priority, entNum, 0 );
if( !src )
return;
new_source = qtrue;
}
else if( entlist[entNum].src->sfx != sfx )
{
// Need to restart. Just re-use this channel
src = entlist[entNum].src;
source_kill( src );
new_source = qtrue;
}
else
{
src = entlist[entNum].src;
}
if( new_source )
{
source_setup( src, sfx, priority, entNum, -1, fvol, attenuation );
qalSourcei( src->source, AL_LOOPING, AL_TRUE );
src->isLooping = qtrue;
entlist[entNum].src = src;
}
qalSourcef( src->source, AL_GAIN, src->fvol * s_volume->value );
qalSourcef( src->source, AL_REFERENCE_DISTANCE, s_attenuation_refdistance );
qalSourcef( src->source, AL_MAX_DISTANCE, s_attenuation_maxdistance );
qalSourcef( src->source, AL_ROLLOFF_FACTOR, attenuation );
if( new_source )
{
if( src->attenuation )
src->isTracking = qtrue;
source_spatialize( src );
qalSourcePlay( src->source );
}
entlist[entNum].touched = qtrue;
}
/**
* Background music playback
*/
void SndAl_StartBackgroundTrack( const char *intro, const char *loop )
{
int i;
// Stop any existing music that might be playing
SndAl_StopBackgroundTrack();
if ( !intro || !intro[ 0 ] )
{
intro = loop;
}
if ( !loop || !loop[ 0 ] )
{
loop = intro;
}
if ( ( !intro || !intro[ 0 ] ) && ( !intro || !intro[ 0 ] ) )
{
return;
}
// Copy the loop over
strncpy( s_backgroundLoop, loop, sizeof( s_backgroundLoop ) );
// Open the intro
mus_stream = si.StreamOpen( intro );
if ( !mus_stream )
{
return;
}
// Allocate a source
al_mus_source_get();
if ( source_handle == -1 )
{
return;
}
// Generate the buffers
qalGenBuffers( BUFFERS, buffers );
// Queue the buffers up
for ( i = 0; i < BUFFERS; i++ )
{
al_mus_process( buffers[ i ] );
}
qalSourceQueueBuffers( source, BUFFERS, buffers );
// Start playing
qalSourcePlay( source );
mus_playing = qtrue;
}
/*
* Plays a channel (in the frontends
* sense) with OpenAL.
*/
void
AL_PlayChannel(channel_t *ch)
{
sfxcache_t *sc;
float vol;
/* Debug */
if (s_show->value > 1)
{
Com_Printf("%s: %s\n", __func__, ch->sfx->name);
}
/* Clamp volume */
vol = ch->oal_vol;
if (vol > 1.0f)
{
vol = 1.0f;
}
sc = ch->sfx->cache;
ch->srcnum = s_srcnums[ch - channels];
qalGetError();
qalSourcef(ch->srcnum, AL_REFERENCE_DISTANCE, SOUND_FULLVOLUME);
qalSourcef(ch->srcnum, AL_MAX_DISTANCE, 8192);
qalSourcef(ch->srcnum, AL_ROLLOFF_FACTOR, ch->dist_mult * (8192 - SOUND_FULLVOLUME));
qalSourcef(ch->srcnum, AL_GAIN, vol);
qalSourcei(ch->srcnum, AL_BUFFER, sc->bufnum);
qalSourcei(ch->srcnum, AL_LOOPING, ch->autosound ? AL_TRUE : AL_FALSE);
if ((ch->entnum == -1) || (ch->entnum == cl.playernum + 1) || !ch->dist_mult)
{
/* anything coming from the view entity will always
* be full volume and at the listeners position */
qalSource3f(ch->srcnum, AL_POSITION, 0.0f, 0.0f, 0.0f);
qalSourcei(ch->srcnum, AL_SOURCE_RELATIVE, AL_TRUE);
}
else
{
/* all other sources are *not* relative */
qalSourcei(ch->srcnum, AL_SOURCE_RELATIVE, AL_FALSE);
}
/* Spatialize it */
AL_Spatialize(ch);
/* Play it */
qalSourcePlay(ch->srcnum);
/* Do not play broken channels */
if (qalGetError() != AL_NO_ERROR)
{
AL_StopChannel(ch);
}
}
/*
=================
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);
}
/*
* S_StartLocalSound
*/
void S_StartLocalSound( const char *name )
{
sfx_t *sfx;
src_t *src;
src = S_AllocSource( SRCPRI_LOCAL, -1, S_CHANNEL_AUTO );
if( !src )
return;
sfx = S_RegisterSound( name );
if( !sfx )
return;
source_setup( src, sfx, SRCPRI_LOCAL, -1, S_CHANNEL_AUTO, 1.0, ATTN_NONE );
qalSourcei( src->source, AL_SOURCE_RELATIVE, AL_TRUE );
qalSourcePlay( src->source );
}
/*
=================
S_AL_StartSound
Play a one-shot sound effect
=================
*/
static
void S_AL_StartSound( vec3_t origin, int entnum, int entchannel, sfxHandle_t sfx )
{
vec3_t sorigin;
srcHandle_t src;
if(S_AL_CheckInput(origin ? 0 : entnum, sfx))
return;
// Try to grab a source
src = S_AL_SrcAlloc(SRCPRI_ONESHOT, entnum, entchannel);
if(src == -1)
return;
// Set up the effect
if( origin == NULL )
{
if( S_AL_HearingThroughEntity( entnum ) )
{
// Where the entity is the local player, play a local sound
S_AL_SrcSetup( src, sfx, SRCPRI_ONESHOT, entnum, entchannel, qtrue );
VectorClear( sorigin );
}
else
{
S_AL_SrcSetup( src, sfx, SRCPRI_ONESHOT, entnum, entchannel, qfalse );
VectorCopy( entityList[ entnum ].origin, sorigin );
}
srcList[ src ].isTracking = qtrue;
}
else
{
S_AL_SrcSetup( src, sfx, SRCPRI_ONESHOT, entnum, entchannel, qfalse );
VectorCopy( origin, sorigin );
}
S_AL_SanitiseVector( sorigin );
qalSourcefv( srcList[ src ].alSource, AL_POSITION, sorigin );
S_AL_ScaleGain(&srcList[src], sorigin);
// Start it playing
qalSourcePlay(srcList[src].alSource);
}
/*
* Plays a channel (in the frontends
* sense) with OpenAL.
*/
void
AL_PlayChannel(channel_t *ch)
{
sfxcache_t *sc;
float vol;
/* Debug */
if (s_show->value > 1)
{
Com_Printf("%s: %s\n", __func__, ch->sfx->name);
}
/* Clamp volume */
vol = ch->oal_vol + s_volume->value;
if (vol > 1.0f)
{
vol = 1.0f;
}
sc = ch->sfx->cache;
ch->srcnum = s_srcnums[ch - channels];
qalGetError();
qalSourcef(ch->srcnum, AL_REFERENCE_DISTANCE, SOUND_FULLVOLUME);
qalSourcef(ch->srcnum, AL_MAX_DISTANCE, 8192);
qalSourcef(ch->srcnum, AL_ROLLOFF_FACTOR, ch->dist_mult * (8192 - SOUND_FULLVOLUME));
qalSourcef(ch->srcnum, AL_GAIN, vol);
qalSourcei(ch->srcnum, AL_BUFFER, sc->bufnum);
qalSourcei(ch->srcnum, AL_LOOPING, ch->autosound ? AL_TRUE : AL_FALSE);
/* Spatialize it */
AL_Spatialize(ch);
/* Play it */
qalSourcePlay(ch->srcnum);
/* Do not play broken channels */
if (qalGetError() != AL_NO_ERROR)
{
AL_StopChannel(ch);
}
}
/*
=================
S_AL_StartLocalSound
Play a local (non-spatialized) sound effect
=================
*/
static
void S_AL_StartLocalSound(sfxHandle_t sfx, int channel)
{
srcHandle_t src;
if(S_AL_CheckInput(0, sfx))
return;
// Try to grab a source
src = S_AL_SrcAlloc(SRCPRI_LOCAL, -1, channel);
if(src == -1)
return;
// Set up the effect
S_AL_SrcSetup(src, sfx, SRCPRI_LOCAL, -1, channel, qtrue);
// Start it playing
qalSourcePlay(srcList[src].alSource);
}
/*
=================
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;
}
}
void S_UpdateMusic( void )
{
int i, processed;
ALint state;
ALenum error;
ALuint b;
int num_processed_buffers;
ALuint processed_buffers[MUSIC_BUFFERS];
if( !s_bgTrack )
return;
if( !s_musicvolume->value && !s_bgTrack->isUrl )
return;
if( s_bgTrackPaused || s_bgTrackLocked )
return;
if( s_bgTrackBuffering )
{
if( S_EoStream( s_bgTrack->stream ) ) {
// we should now advance to the next track
S_CloseMusicTrack( s_bgTrack );
}
else {
if( S_FTellSteam( s_bgTrack->stream ) < BACKGROUND_TRACK_BUFFERING_SIZE )
return;
// in case we delayed openening to let the stream be cached for a while,
// start actually reading from it now
if( !S_ContOpenStream( s_bgTrack->stream ) ) {
// let music_process do the dirty job of advancing to the next track
S_CloseMusicTrack( s_bgTrack );
s_bgTrack->ignore = qtrue;
}
}
s_bgTrackBuffering = qfalse;
}
if( !queued_buffers )
{
// if we haven't queued any buffers yet, do it now
num_processed_buffers = MUSIC_BUFFERS;
memcpy( processed_buffers, buffers, sizeof( buffers ) );
}
else
{
num_processed_buffers = 0;
processed = 0;
qalGetSourcei( source, AL_BUFFERS_PROCESSED, &processed );
while( processed-- )
{
qalSourceUnqueueBuffers( source, 1, &b );
processed_buffers[num_processed_buffers++] = b;
}
}
for( i = 0; i < num_processed_buffers; i++ )
{
b = processed_buffers[i];
if( !music_process( b ) )
{
Com_Printf( "Error processing music data\n" );
S_StopBackgroundTrack();
return;
}
qalSourceQueueBuffers( source, 1, &b );
if( ( error = qalGetError() ) != AL_NO_ERROR )
{
Com_Printf( "Couldn't queue music data (%s)\n", S_ErrorMessage( error ) );
S_StopBackgroundTrack();
return;
}
}
// If it's not still playing, give it a kick
qalGetSourcei( source, AL_SOURCE_STATE, &state );
if( !queued_buffers || state != AL_PLAYING )
{
queued_buffers = qtrue;
qalSourcePlay( source );
}
if( s_musicvolume->modified )
qalSourcef( source, AL_GAIN, s_musicvolume->value );
}
/*
=================
S_AL_StartBackgroundTrack
=================
*/
static
void S_AL_StartBackgroundTrack( const char *intro, const char *loop )
{
int i;
qboolean issame;
// Stop any existing music that might be playing
S_AL_StopBackgroundTrack();
if((!intro || !*intro) && (!loop || !*loop))
return;
// Allocate a musicSource
S_AL_MusicSourceGet();
if(musicSourceHandle == -1)
return;
if (!loop || !*loop)
{
loop = intro;
issame = qtrue;
}
else if(intro && *intro && !strcmp(intro, loop))
issame = qtrue;
else
issame = qfalse;
// Copy the loop over
strncpy( s_backgroundLoop, loop, sizeof( s_backgroundLoop ) );
if(!issame)
{
// Open the intro and don't mind whether it succeeds.
// The important part is the loop.
intro_stream = S_CodecOpenStream(intro);
}
else
intro_stream = NULL;
mus_stream = S_CodecOpenStream(s_backgroundLoop);
if(!mus_stream)
{
S_AL_CloseMusicFiles();
S_AL_MusicSourceFree();
return;
}
// Generate the musicBuffers
qalGenBuffers(NUM_MUSIC_BUFFERS, musicBuffers);
// Queue the musicBuffers up
for(i = 0; i < NUM_MUSIC_BUFFERS; i++)
{
S_AL_MusicProcess(musicBuffers[i]);
}
qalSourceQueueBuffers(musicSource, NUM_MUSIC_BUFFERS, musicBuffers);
// Set the initial gain property
qalSourcef(musicSource, AL_GAIN, s_alGain->value * s_musicVolume->value);
// Start playing
qalSourcePlay(musicSource);
musicPlaying = qtrue;
}
/*
=================
S_AL_SrcUpdate
Update state (move things around, manage sources, and so on)
=================
*/
static
void S_AL_SrcUpdate( void )
{
int i;
int entityNum;
ALint state;
src_t *curSource;
for(i = 0; i < srcCount; i++)
{
entityNum = srcList[i].entity;
curSource = &srcList[i];
if(curSource->isLocked)
continue;
if(!curSource->isActive)
continue;
// Update source parameters
if((s_alGain->modified)||(s_volume->modified))
curSource->curGain = s_alGain->value * s_volume->value;
if((s_alRolloff->modified)&&(!curSource->local))
qalSourcef(curSource->alSource, AL_ROLLOFF_FACTOR, s_alRolloff->value);
if(s_alMinDistance->modified)
qalSourcef(curSource->alSource, AL_REFERENCE_DISTANCE, s_alMinDistance->value);
if(curSource->isLooping)
{
sentity_t *sent = &entityList[ entityNum ];
// If a looping effect hasn't been touched this frame, kill it
if(sent->loopAddedThisFrame)
{
// The sound has changed without an intervening removal
if(curSource->isActive && !sent->startLoopingSound &&
curSource->sfx != sent->loopSfx)
{
qalSourceStop(curSource->alSource);
qalSourcei(curSource->alSource, AL_BUFFER, 0);
sent->startLoopingSound = qtrue;
}
// The sound hasn't been started yet
if(sent->startLoopingSound)
{
S_AL_SrcSetup(i, sent->loopSfx, sent->loopPriority,
entityNum, -1, curSource->local);
curSource->isLooping = qtrue;
qalSourcei(curSource->alSource, AL_LOOPING, AL_TRUE);
qalSourcePlay(curSource->alSource);
sent->startLoopingSound = qfalse;
}
// Update locality
if(curSource->local)
{
qalSourcei(curSource->alSource, AL_SOURCE_RELATIVE, AL_TRUE);
qalSourcef(curSource->alSource, AL_ROLLOFF_FACTOR, 0.0f);
}
else
{
qalSourcei(curSource->alSource, AL_SOURCE_RELATIVE, AL_FALSE);
qalSourcef(curSource->alSource, AL_ROLLOFF_FACTOR, s_alRolloff->value);
}
}
else
S_AL_SrcKill( i );
continue;
}
// Check if it's done, and flag it
qalGetSourcei(curSource->alSource, AL_SOURCE_STATE, &state);
if(state == AL_STOPPED)
{
S_AL_SrcKill(i);
continue;
}
// Query relativity of source, don't move if it's true
qalGetSourcei(curSource->alSource, AL_SOURCE_RELATIVE, &state);
// See if it needs to be moved
if(curSource->isTracking && !state)
{
qalSourcefv(curSource->alSource, AL_POSITION, entityList[entityNum].origin);
S_AL_ScaleGain(curSource, entityList[entityNum].origin);
}
}
}
void SndAl_RawSamples( int stream, int samples, int rate, int width, int channels, const byte *data, float volume, int entityNum )
{
ALuint buffer;
ALuint format = AL_FORMAT_STEREO16;
ALint state;
// Work out AL format
if ( width == 1 )
{
if ( channels == 1 )
{
format = AL_FORMAT_MONO8;
}
else if ( channels == 2 )
{
format = AL_FORMAT_STEREO8;
}
}
else if ( width == 2 )
{
if ( channels == 1 )
{
format = AL_FORMAT_MONO16;
}
else if ( channels == 2 )
{
format = AL_FORMAT_STEREO16;
}
}
// Create the source if necessary
if ( source_handle == -1 )
{
allocate_channel();
// Failed?
if ( source_handle == -1 )
{
si.Printf( PRINT_ALL, "Can't allocate streaming source\n" );
return;
}
}
// Create a buffer, and stuff the data into it
qalGenBuffers( 1, &buffer );
qalBufferData( buffer, format, data, ( samples * width * channels ), rate );
// Shove the data onto the source
qalSourceQueueBuffers( source, 1, &buffer );
// Start the source playing if necessary
qalGetSourcei( source, AL_SOURCE_STATE, &state );
// Volume
qalSourcef( source, AL_GAIN, volume * s_volume->value * s_gain->value );
if ( !is_playing )
{
qalSourcePlay( source );
is_playing = qtrue;
}
}