/*************************************************************************/ /* audio_server_sw.cpp */ /*************************************************************************/ /* This file is part of: */ /* GODOT ENGINE */ /* http://www.godotengine.org */ /*************************************************************************/ /* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */ /* */ /* Permission is hereby granted, free of charge, to any person obtaining */ /* a copy of this software and associated documentation files (the */ /* "Software"), to deal in the Software without restriction, including */ /* without limitation the rights to use, copy, modify, merge, publish, */ /* distribute, sublicense, and/or sell copies of the Software, and to */ /* permit persons to whom the Software is furnished to do so, subject to */ /* the following conditions: */ /* */ /* The above copyright notice and this permission notice shall be */ /* included in all copies or substantial portions of the Software. */ /* */ /* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */ /* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */ /* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/ /* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */ /* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */ /* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */ /* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ /*************************************************************************/ #include "audio_server_sw.h" #include "globals.h" #include "os/os.h" struct _AudioDriverLock { _AudioDriverLock() { if (AudioDriverSW::get_singleton()) AudioDriverSW::get_singleton()->lock(); } ~_AudioDriverLock() { if (AudioDriverSW::get_singleton()) AudioDriverSW::get_singleton()->unlock(); } }; #define AUDIO_LOCK _AudioDriverLock _adlock; AudioMixer *AudioServerSW::get_mixer() { return mixer; } /* CALLBACKS */ void AudioServerSW::audio_mixer_chunk_callback(int p_frames) { /* for(List::Element *E=event_streams.front();E;E=E->next()) { if (E->get()->active) E->get()->audio_stream->mix(NULL,p_frames); } */ } void AudioServerSW::_mixer_callback(void *p_udata) { AudioServerSW *self = (AudioServerSW*)p_udata; for(List::Element *E=self->active_audio_streams.front();E;E=E->next()) { if (!E->get()->active) continue; EventStream *es=E->get()->event_stream; if (!es) continue; es->update(self->mixer_step_usecs); } } void AudioServerSW::driver_process_chunk(int p_frames,int32_t *p_buffer) { int samples=p_frames*internal_buffer_channels; for(int i=0;i*al = active_list.first(); while(al) { Voice *v=al->self(); if (v->channel!=AudioMixer::INVALID_CHANNEL) { mixer->channel_set_volume(v->channel,v->volume*fx_volume_scale); } al=al->next(); } continue; } if (!voice_owner.owns(cmd.voice)) continue; Voice *v = voice_owner.get(cmd.voice); switch(cmd.type) { case VoiceRBSW::Command::CMD_NONE: { } break; case VoiceRBSW::Command::CMD_PLAY: { if (v->channel!=AudioMixer::INVALID_CHANNEL) mixer->channel_free(v->channel); RID sample = cmd.play.sample; if (!sample_manager->is_sample(sample)) continue; v->channel=mixer->channel_alloc(sample); v->volume=1.0; mixer->channel_set_volume(v->channel,fx_volume_scale); if (v->channel==AudioMixer::INVALID_CHANNEL) { #ifdef AUDIO_DEBUG WARN_PRINT("AUDIO: all channels used, failed to allocate voice"); #endif v->active=false; break; // no voices left? } v->active=true; // this kind of ensures it works if (!v->active_item.in_list()) active_list.add(&v->active_item); } break; case VoiceRBSW::Command::CMD_STOP: { if (v->channel!=AudioMixer::INVALID_CHANNEL) { mixer->channel_free(v->channel); if (v->active_item.in_list()) { active_list.remove(&v->active_item); } } v->active=false; } break; case VoiceRBSW::Command::CMD_SET_VOLUME: { if (v->channel!=AudioMixer::INVALID_CHANNEL) { v->volume=cmd.volume.volume; mixer->channel_set_volume(v->channel,cmd.volume.volume*fx_volume_scale); } } break; case VoiceRBSW::Command::CMD_SET_PAN: { if (v->channel!=AudioMixer::INVALID_CHANNEL) mixer->channel_set_pan(v->channel,cmd.pan.pan,cmd.pan.depth,cmd.pan.height); } break; case VoiceRBSW::Command::CMD_SET_FILTER: { if (v->channel!=AudioMixer::INVALID_CHANNEL) mixer->channel_set_filter(v->channel,(AudioMixer::FilterType)cmd.filter.type,cmd.filter.cutoff,cmd.filter.resonance,cmd.filter.gain); } break; case VoiceRBSW::Command::CMD_SET_CHORUS: { if (v->channel!=AudioMixer::INVALID_CHANNEL) mixer->channel_set_chorus(v->channel,cmd.chorus.send); } break; case VoiceRBSW::Command::CMD_SET_REVERB: { if (v->channel!=AudioMixer::INVALID_CHANNEL) mixer->channel_set_reverb(v->channel,(AudioMixer::ReverbRoomType)cmd.reverb.room,cmd.reverb.send); } break; case VoiceRBSW::Command::CMD_SET_MIX_RATE: { if (v->channel!=AudioMixer::INVALID_CHANNEL) mixer->channel_set_mix_rate(v->channel,cmd.mix_rate.mix_rate); } break; case VoiceRBSW::Command::CMD_SET_POSITIONAL: { if (v->channel!=AudioMixer::INVALID_CHANNEL) mixer->channel_set_positional(v->channel,cmd.positional.positional); } break; default: {} } } mixer->mix(internal_buffer,p_frames); //uint64_t stepsize=mixer->get_step_usecs(); for(List::Element *E=active_audio_streams.front();E;E=E->next()) { ERR_CONTINUE(!E->get()->active); // bug? AudioStream *as=E->get()->audio_stream; if (!as) continue; int channels=as->get_channel_count(); if (channels==0) continue; // does not want mix if (!as->mix(stream_buffer,p_frames)) continue; //nothing was mixed!! int32_t stream_vol_scale=(stream_volume*stream_volume_scale*E->get()->volume_scale)*(1<>STREAM_SCALE_BITS)*stream_vol_scale)>>8) switch(internal_buffer_channels) { case 2: { switch(channels) { case 1: { for(int i=0;i>1); internal_buffer[(i<<2)+1]+=STRSCALE((stream_buffer[(i<<2)+1]+stream_buffer[(i<<2)+3])>>1); } } break; } break; } break; case 4: { switch(channels) { case 1: { for(int i=0;i *activeE=active_list.first(); while(activeE) { SelfList *activeN=activeE->next(); if (activeE->self()->channel==AudioMixer::INVALID_CHANNEL || !mixer->channel_is_valid(activeE->self()->channel)) { active_list.remove(activeE); activeE->self()->active=false; } activeE=activeN; } uint32_t peak=0; for(int i=0;i> (32 - 1)); uint32_t p = (in + mask) ^ mask; if (p>peak) peak=p; } #endif int32_t lo = -0x800000, hi=0x7FFFFF; lo-=in; hi-=in; in += (lo & ((lo < 0) - 1)) + (hi & ((hi > 0) - 1)); p_buffer[i]=in<<8; } if (peak>max_peak) max_peak=peak; } void AudioServerSW::driver_process(int p_frames,int32_t *p_buffer) { //process in chunks to make sure to never process more than INTERNAL_BUFFER_SIZE int todo=p_frames; while(todo) { int tomix=MIN(todo,INTERNAL_BUFFER_SIZE); driver_process_chunk(tomix,p_buffer); p_buffer+=tomix; todo-=tomix; } } /* SAMPLE API */ RID AudioServerSW::sample_create(SampleFormat p_format, bool p_stereo, int p_length) { AUDIO_LOCK return sample_manager->sample_create(p_format,p_stereo,p_length); } void AudioServerSW::sample_set_description(RID p_sample, const String& p_description) { AUDIO_LOCK sample_manager->sample_set_description(p_sample,p_description); } String AudioServerSW::sample_get_description(RID p_sample, const String& p_description) const { AUDIO_LOCK return sample_manager->sample_get_description(p_sample); } AS::SampleFormat AudioServerSW::sample_get_format(RID p_sample) const { //AUDIO_LOCK return sample_manager->sample_get_format(p_sample); } bool AudioServerSW::sample_is_stereo(RID p_sample) const { //AUDIO_LOCK return sample_manager->sample_is_stereo(p_sample); } int AudioServerSW::sample_get_length(RID p_sample) const { ///AUDIO_LOCK return sample_manager->sample_get_length(p_sample); } const void* AudioServerSW::sample_get_data_ptr(RID p_sample) const { ///AUDIO_LOCK return sample_manager->sample_get_data_ptr(p_sample); } void AudioServerSW::sample_set_data(RID p_sample, const DVector& p_buffer) { AUDIO_LOCK sample_manager->sample_set_data(p_sample,p_buffer); } const DVector AudioServerSW::sample_get_data(RID p_sample) const { AUDIO_LOCK return sample_manager->sample_get_data(p_sample); } void AudioServerSW::sample_set_mix_rate(RID p_sample,int p_rate) { AUDIO_LOCK sample_manager->sample_set_mix_rate(p_sample,p_rate); } int AudioServerSW::sample_get_mix_rate(RID p_sample) const { AUDIO_LOCK return sample_manager->sample_get_mix_rate(p_sample); } void AudioServerSW::sample_set_loop_format(RID p_sample,SampleLoopFormat p_format) { AUDIO_LOCK sample_manager->sample_set_loop_format(p_sample,p_format); } AS::SampleLoopFormat AudioServerSW::sample_get_loop_format(RID p_sample) const { AUDIO_LOCK return sample_manager->sample_get_loop_format(p_sample); } void AudioServerSW::sample_set_loop_begin(RID p_sample,int p_pos) { AUDIO_LOCK sample_manager->sample_set_loop_begin(p_sample,p_pos); } int AudioServerSW::sample_get_loop_begin(RID p_sample) const { AUDIO_LOCK return sample_manager->sample_get_loop_begin(p_sample); } void AudioServerSW::sample_set_loop_end(RID p_sample,int p_pos) { AUDIO_LOCK sample_manager->sample_set_loop_end(p_sample,p_pos); } int AudioServerSW::sample_get_loop_end(RID p_sample) const { AUDIO_LOCK return sample_manager->sample_get_loop_end(p_sample); } /* VOICE API */ RID AudioServerSW::voice_create() { Voice * v = memnew( Voice ); v->channel=AudioMixer::INVALID_CHANNEL; AUDIO_LOCK return voice_owner.make_rid(v); } void AudioServerSW::voice_play(RID p_voice, RID p_sample) { Voice *v = voice_owner.get( p_voice ); ERR_FAIL_COND(!v); v->active=true; // force actvive (will be disabled later i gues..) //stop old, start new VoiceRBSW::Command cmd; cmd.type=VoiceRBSW::Command::CMD_PLAY; cmd.voice=p_voice; cmd.play.sample=p_sample; voice_rb.push_command(cmd); } void AudioServerSW::voice_set_volume(RID p_voice, float p_db) { VoiceRBSW::Command cmd; cmd.type=VoiceRBSW::Command::CMD_SET_VOLUME; cmd.voice=p_voice; cmd.volume.volume=p_db; voice_rb.push_command(cmd); } void AudioServerSW::voice_set_pan(RID p_voice, float p_pan, float p_depth,float p_height) { VoiceRBSW::Command cmd; cmd.type=VoiceRBSW::Command::CMD_SET_PAN; cmd.voice=p_voice; cmd.pan.pan=p_pan; cmd.pan.depth=p_depth; cmd.pan.height=p_height; voice_rb.push_command(cmd); } void AudioServerSW::voice_set_filter(RID p_voice, FilterType p_type, float p_cutoff, float p_resonance,float p_gain) { VoiceRBSW::Command cmd; cmd.type=VoiceRBSW::Command::CMD_SET_FILTER; cmd.voice=p_voice; cmd.filter.type=p_type; cmd.filter.cutoff=p_cutoff; cmd.filter.resonance=p_resonance; cmd.filter.gain=p_gain; voice_rb.push_command(cmd); } void AudioServerSW::voice_set_chorus(RID p_voice, float p_chorus ) { VoiceRBSW::Command cmd; cmd.type=VoiceRBSW::Command::CMD_SET_CHORUS; cmd.voice=p_voice; cmd.chorus.send=p_chorus; voice_rb.push_command(cmd); } void AudioServerSW::voice_set_reverb(RID p_voice, ReverbRoomType p_room_type, float p_reverb) { VoiceRBSW::Command cmd; cmd.type=VoiceRBSW::Command::CMD_SET_REVERB; cmd.voice=p_voice; cmd.reverb.room=p_room_type; cmd.reverb.send=p_reverb; voice_rb.push_command(cmd); } void AudioServerSW::voice_set_mix_rate(RID p_voice, int p_mix_rate) { VoiceRBSW::Command cmd; cmd.type=VoiceRBSW::Command::CMD_SET_MIX_RATE; cmd.voice=p_voice; cmd.mix_rate.mix_rate=p_mix_rate; voice_rb.push_command(cmd); } void AudioServerSW::voice_set_positional(RID p_voice, bool p_positional) { VoiceRBSW::Command cmd; cmd.type=VoiceRBSW::Command::CMD_SET_POSITIONAL; cmd.voice=p_voice; cmd.positional.positional=p_positional; voice_rb.push_command(cmd); } float AudioServerSW::voice_get_volume(RID p_voice) const { AUDIO_LOCK Voice *v = voice_owner.get( p_voice ); ERR_FAIL_COND_V(!v, 0); return mixer->channel_get_volume( v->channel ); } float AudioServerSW::voice_get_pan(RID p_voice) const { AUDIO_LOCK Voice *v = voice_owner.get( p_voice ); ERR_FAIL_COND_V(!v, 0); return mixer->channel_get_pan( v->channel ); } float AudioServerSW::voice_get_pan_depth(RID p_voice) const { AUDIO_LOCK Voice *v = voice_owner.get( p_voice ); ERR_FAIL_COND_V(!v, 0); return mixer->channel_get_pan_depth( v->channel ); } float AudioServerSW::voice_get_pan_height(RID p_voice) const { AUDIO_LOCK Voice *v = voice_owner.get( p_voice ); ERR_FAIL_COND_V(!v, 0); return mixer->channel_get_pan_height( v->channel ); } AS::FilterType AudioServerSW::voice_get_filter_type(RID p_voice) const { AUDIO_LOCK Voice *v = voice_owner.get( p_voice ); ERR_FAIL_COND_V(!v, AS::FILTER_NONE); return (AS::FilterType)mixer->channel_get_filter_type(v->channel); } float AudioServerSW::voice_get_filter_cutoff(RID p_voice) const { AUDIO_LOCK Voice *v = voice_owner.get( p_voice ); ERR_FAIL_COND_V(!v, 0); return mixer->channel_get_filter_cutoff( v->channel ); } float AudioServerSW::voice_get_filter_resonance(RID p_voice) const { AUDIO_LOCK Voice *v = voice_owner.get( p_voice ); ERR_FAIL_COND_V(!v, 0); return mixer->channel_get_filter_resonance( v->channel ); } float AudioServerSW::voice_get_chorus(RID p_voice) const { AUDIO_LOCK Voice *v = voice_owner.get( p_voice ); ERR_FAIL_COND_V(!v, 0); return mixer->channel_get_chorus( v->channel ); } AS::ReverbRoomType AudioServerSW::voice_get_reverb_type(RID p_voice) const { AUDIO_LOCK Voice *v = voice_owner.get( p_voice ); ERR_FAIL_COND_V(!v, REVERB_SMALL); return (AS::ReverbRoomType)mixer->channel_get_reverb_type( v->channel ); } float AudioServerSW::voice_get_reverb(RID p_voice) const { AUDIO_LOCK Voice *v = voice_owner.get( p_voice ); ERR_FAIL_COND_V(!v, 0); return mixer->channel_get_reverb( v->channel ); } int AudioServerSW::voice_get_mix_rate(RID p_voice) const { AUDIO_LOCK Voice *v = voice_owner.get( p_voice ); ERR_FAIL_COND_V(!v, 0); return mixer->channel_get_mix_rate( v->channel ); } bool AudioServerSW::voice_is_positional(RID p_voice) const { AUDIO_LOCK Voice *v = voice_owner.get( p_voice ); ERR_FAIL_COND_V(!v, 0); return mixer->channel_is_positional( v->channel ); } void AudioServerSW::voice_stop(RID p_voice) { VoiceRBSW::Command cmd; cmd.type=VoiceRBSW::Command::CMD_STOP; cmd.voice=p_voice; voice_rb.push_command(cmd); //return mixer->channel_free( v->channel ); } bool AudioServerSW::voice_is_active(RID p_voice) const { Voice *v = voice_owner.get(p_voice); ERR_FAIL_COND_V(!v,false); return v->active; } /* STREAM API */ RID AudioServerSW::audio_stream_create(AudioStream *p_stream) { AUDIO_LOCK Stream *s = memnew(Stream); s->audio_stream=p_stream; s->event_stream=NULL; s->active=false; s->E=NULL; s->volume_scale=1.0; p_stream->set_mix_rate(AudioDriverSW::get_singleton()->get_mix_rate()); return stream_owner.make_rid(s); } RID AudioServerSW::event_stream_create(EventStream *p_stream) { AUDIO_LOCK Stream *s = memnew(Stream); s->audio_stream=NULL; s->event_stream=p_stream; s->active=false; s->E=NULL; s->volume_scale=1.0; //p_stream->set_mix_rate(AudioDriverSW::get_singleton()->get_mix_rate()); return stream_owner.make_rid(s); } void AudioServerSW::stream_set_active(RID p_stream, bool p_active) { Stream *s = stream_owner.get(p_stream); ERR_FAIL_COND(!s); if (s->active==p_active) return; AUDIO_LOCK; _THREAD_SAFE_METHOD_ s->active=p_active; if (p_active) s->E=active_audio_streams.push_back(s); else { active_audio_streams.erase(s->E); s->E=NULL; } } bool AudioServerSW::stream_is_active(RID p_stream) const { Stream *s = stream_owner.get(p_stream); ERR_FAIL_COND_V(!s,false); return s->active; } void AudioServerSW::stream_set_volume_scale(RID p_stream, float p_scale) { Stream *s = stream_owner.get(p_stream); ERR_FAIL_COND(!s); s->volume_scale=p_scale; } float AudioServerSW::stream_set_volume_scale(RID p_stream) const { Stream *s = stream_owner.get(p_stream); ERR_FAIL_COND_V(!s,0); return s->volume_scale; } void AudioServerSW::free(RID p_id) { if(voice_owner.owns(p_id)) { Voice *v = voice_owner.get(p_id); AUDIO_LOCK mixer->channel_free( v->channel ); voice_owner.free(p_id); memdelete(v); } else if (stream_owner.owns(p_id)) { Stream *s=stream_owner.get(p_id); if (s->active) { stream_set_active(p_id,false); } memdelete(s); stream_owner.free(p_id); } else if (sample_manager->is_sample(p_id)) { AUDIO_LOCK sample_manager->free(p_id); } } void AudioServerSW::_thread_func(void *self) { AudioServerSW *as=(AudioServerSW *)self; while (!as->exit_update_thread) { as->_update_streams(true); OS::get_singleton()->delay_usec(5000); } } void AudioServerSW::init() { int latency = GLOBAL_DEF("audio/mixer_latency",10); internal_buffer_channels=2; // read from driver internal_buffer = memnew_arr(int32_t,INTERNAL_BUFFER_SIZE*internal_buffer_channels); stream_buffer = memnew_arr(int32_t,INTERNAL_BUFFER_SIZE*4); //max 4 channels AudioMixerSW::MixChannels mix_chans = AudioMixerSW::MIX_STEREO; switch(AudioDriverSW::get_singleton()->get_output_format()) { case AudioDriverSW::OUTPUT_MONO: case AudioDriverSW::OUTPUT_STEREO: mix_chans=AudioMixerSW::MIX_STEREO; break; case AudioDriverSW::OUTPUT_QUAD: case AudioDriverSW::OUTPUT_5_1: mix_chans=AudioMixerSW::MIX_QUAD; break; } mixer = memnew( AudioMixerSW( sample_manager, latency, AudioDriverSW::get_singleton()->get_mix_rate(),mix_chans,mixer_use_fx,mixer_interp,_mixer_callback,this ) ); mixer_step_usecs=mixer->get_step_usecs(); stream_volume=0.3; // start the audio driver if (AudioDriverSW::get_singleton()) AudioDriverSW::get_singleton()->start(); #ifndef NO_THREADS exit_update_thread=false; thread = Thread::create(_thread_func,this); #endif } void AudioServerSW::finish() { #ifndef NO_THREADS exit_update_thread=true; Thread::wait_to_finish(thread); memdelete(thread); #endif if (AudioDriverSW::get_singleton()) AudioDriverSW::get_singleton()->finish(); memdelete_arr(internal_buffer); memdelete_arr(stream_buffer); memdelete(mixer); } void AudioServerSW::_update_streams(bool p_thread) { _THREAD_SAFE_METHOD_ for(List::Element *E=active_audio_streams.front();E;E=E->next()) { if (E->get()->audio_stream && p_thread == E->get()->audio_stream->can_update_mt()) E->get()->audio_stream->update(); } } void AudioServerSW::update() { _update_streams(false); #ifdef NO_THREADS _update_streams(true); #endif } void AudioServerSW::lock() { AudioDriverSW::get_singleton()->lock(); } void AudioServerSW::unlock() { AudioDriverSW::get_singleton()->unlock(); } int AudioServerSW::get_default_mix_rate() const { return AudioDriverSW::get_singleton()->get_mix_rate(); } int AudioServerSW::get_default_channel_count() const { return internal_buffer_channels; } void AudioServerSW::set_mixer_params(AudioMixerSW::InterpolationType p_interp, bool p_use_fx) { mixer_interp=p_interp; mixer_use_fx=p_use_fx; } void AudioServerSW::set_stream_global_volume_scale(float p_volume) { stream_volume_scale=p_volume; } float AudioServerSW::get_stream_global_volume_scale() const { return stream_volume_scale; } void AudioServerSW::set_fx_global_volume_scale(float p_volume) { fx_volume_scale=p_volume; //mixer->set_mixer_volume(fx_volume_scale); VoiceRBSW::Command cmd; cmd.type=VoiceRBSW::Command::CMD_CHANGE_ALL_FX_VOLUMES; cmd.voice=RID(); cmd.volume.volume=p_volume; voice_rb.push_command(cmd); } float AudioServerSW::get_fx_global_volume_scale() const { return fx_volume_scale; } void AudioServerSW::set_event_voice_global_volume_scale(float p_volume) { event_voice_volume_scale=p_volume; //mixer->set_mixer_volume(event_voice_volume_scale); } float AudioServerSW::get_event_voice_global_volume_scale() const { return event_voice_volume_scale; } double AudioServerSW::get_mix_time() const { return AudioDriverSW::get_singleton()->get_mix_time(); } uint32_t AudioServerSW::read_output_peak() const { uint32_t val = max_peak; uint32_t *p = (uint32_t*)&max_peak; *p=0; return val; } AudioServerSW::AudioServerSW(SampleManagerSW *p_sample_manager) { sample_manager=p_sample_manager; String interp = GLOBAL_DEF("audio/mixer_interp","linear"); Globals::get_singleton()->set_custom_property_info("audio/mixer",PropertyInfo(Variant::STRING,"audio/mixer",PROPERTY_HINT_ENUM,"raw,linear,cubic")); if (interp=="raw") mixer_interp=AudioMixerSW::INTERPOLATION_RAW; else if (interp=="cubic") mixer_interp=AudioMixerSW::INTERPOLATION_CUBIC; else mixer_interp=AudioMixerSW::INTERPOLATION_LINEAR; mixer_use_fx = GLOBAL_DEF("audio/use_chorus_reverb",true); stream_volume_scale=GLOBAL_DEF("audio/stream_volume_scale",1.0); fx_volume_scale=GLOBAL_DEF("audio/fx_volume_scale",1.0); event_voice_volume_scale=GLOBAL_DEF("audio/event_voice_volume_scale",0.5); max_peak=0; } AudioServerSW::~AudioServerSW() { } AudioDriverSW *AudioDriverSW::singleton=NULL; AudioDriverSW *AudioDriverSW::get_singleton() { return singleton; } void AudioDriverSW::set_singleton() { singleton=this; } void AudioDriverSW::audio_server_process(int p_frames,int32_t *p_buffer,bool p_update_mix_time) { AudioServerSW * audio_server = static_cast(AudioServer::get_singleton()); if (p_update_mix_time) update_mix_time(p_frames); audio_server->driver_process(p_frames,p_buffer); } void AudioDriverSW::update_mix_time(int p_frames) { _mix_amount+=p_frames; _last_mix_time=OS::get_singleton()->get_ticks_usec(); } double AudioDriverSW::get_mix_time() const { double total = (OS::get_singleton()->get_ticks_usec() - _last_mix_time) / 1000000.0; total+=_mix_amount/(double)get_mix_rate(); return total; } AudioDriverSW::AudioDriverSW() { _last_mix_time=0; _mix_amount=0; } AudioDriverSW *AudioDriverManagerSW::drivers[MAX_DRIVERS]; int AudioDriverManagerSW::driver_count=0; void AudioDriverManagerSW::add_driver(AudioDriverSW *p_driver) { ERR_FAIL_COND(driver_count>=MAX_DRIVERS); drivers[driver_count++]=p_driver; } int AudioDriverManagerSW::get_driver_count() { return driver_count; } AudioDriverSW *AudioDriverManagerSW::get_driver(int p_driver) { ERR_FAIL_INDEX_V(p_driver,driver_count,NULL); return drivers[p_driver]; }