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 ); }
/* ================= 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_AL_RawSamples ================= */ static void S_AL_RawSamples(int samples, int rate, int width, int channels, const byte *data, float volume) { ALuint buffer; ALuint format; format = S_AL_Format( width, channels ); // Create the streamSource if necessary if(streamSourceHandle == -1) { S_AL_AllocateStreamChannel(); // Failed? if(streamSourceHandle == -1) { Com_Printf( S_COLOR_RED "ERROR: Can't allocate streaming streamSource\n"); return; } } // Create a buffer, and stuff the data into it qalGenBuffers(1, &buffer); qalBufferData(buffer, format, (ALvoid *)data, (samples * width * channels), rate); // Shove the data onto the streamSource qalSourceQueueBuffers(streamSource, 1, &buffer); // Volume qalSourcef (streamSource, AL_GAIN, volume * s_volume->value * s_alGain->value); }
/** * 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; }
/* ================= 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); }
/* * Queues raw samples for playback. Used * by the background music an cinematics. */ void AL_RawSamples(int samples, int rate, int width, int channels, byte *data, float volume) { ALuint buffer; ALuint format = 0; /* Work out 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 a buffer, and stuff the data into it */ qalGenBuffers(1, &buffer); qalBufferData(buffer, format, (ALvoid *)data, (samples * width * channels), rate); active_buffers++; /* set volume */ if (volume > 1.0f) { volume = 1.0f; } qalSourcef(streamSource, AL_GAIN, volume); /* Shove the data onto the streamSource */ qalSourceQueueBuffers(streamSource, 1, &buffer); /* emulate behavior of S_RawSamples for s_rawend */ s_rawend += samples; }
void AL_RawSamples( int samples, int rate, int width, int channels, byte *data, float volume ) { ALuint buffer; ALuint format; format = S_AL_Format( width, channels ); // Create a buffer, and stuff the data into it qalGenBuffers(1, &buffer); qalBufferData(buffer, format, (ALvoid *)data, (samples * width * channels), rate); active_buffers++; // set volume qalSourcef( streamSource, AL_GAIN, volume ); // Shove the data onto the streamSource qalSourceQueueBuffers(streamSource, 1, &buffer); // emulate behavior of S_RawSamples for s_rawend s_rawend += samples; }
/* ================= 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; }
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; } }
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 ); }