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extern/audaspace/src/devices/SoftwareDevice.cpp

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/*******************************************************************************
* Copyright 2009-2016 Jörg Müller
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
******************************************************************************/
#include "devices/SoftwareDevice.h"
#include "fx/PitchReader.h"
#include "respec/ChannelMapperReader.h"
#include "respec/JOSResampleReader.h"
#include "respec/LinearResampleReader.h"
#include "respec/Mixer.h"
#include "Exception.h"
#include "ISound.h"
#include <algorithm>
#include <cmath>
#include <cstring>
#include <iostream>
#include <limits>
#include <mutex>
AUD_NAMESPACE_BEGIN
enum RenderFlags
{
RENDER_DISTANCE = 0x01,
RENDER_DOPPLER = 0x02,
RENDER_CONE = 0x04,
RENDER_VOLUME = 0x08
};
#define PITCH_MAX 10
/******************************************************************************/
/********************** SoftwareHandle Handle Code ************************/
/******************************************************************************/
bool SoftwareDevice::SoftwareHandle::pause(bool keep)
{
if(m_status)
{
std::lock_guard<ILockable> lock(*m_device);
if(m_status == STATUS_PLAYING)
{
for(auto it = m_device->m_playingSounds.begin(); it != m_device->m_playingSounds.end(); it++)
{
if(it->get() == this)
{
std::shared_ptr<SoftwareHandle> This = *it;
m_device->m_playingSounds.erase(it);
m_device->m_pausedSounds.push_back(This);
if(m_device->m_playingSounds.empty())
m_device->playing(m_device->m_playback = false);
m_status = keep ? STATUS_STOPPED : STATUS_PAUSED;
return true;
}
}
}
}
return false;
}
SoftwareDevice::SoftwareHandle::SoftwareHandle(SoftwareDevice* device, std::shared_ptr<IReader> reader, std::shared_ptr<PitchReader> pitch, std::shared_ptr<ResampleReader> resampler, std::shared_ptr<ChannelMapperReader> mapper, bool keep) :
m_reader(reader), m_pitch(pitch), m_resampler(resampler), m_mapper(mapper), m_keep(keep), m_user_pitch(1.0f), m_user_volume(1.0f), m_user_pan(0.0f), m_volume(1.0f), m_old_volume(0), m_loopcount(0),
m_relative(true), m_volume_max(1.0f), m_volume_min(0), m_distance_max(std::numeric_limits<float>::max()),
m_distance_reference(1.0f), m_attenuation(1.0f), m_cone_angle_outer(M_PI), m_cone_angle_inner(M_PI), m_cone_volume_outer(0),
m_flags(RENDER_CONE), m_stop(nullptr), m_stop_data(nullptr), m_status(STATUS_PLAYING), m_device(device)
{
}
void SoftwareDevice::SoftwareHandle::update()
{
int flags = 0;
m_old_volume = m_volume;
Vector3 SL;
if(m_relative)
SL = -m_location;
else
SL = m_device->m_location - m_location;
float distance = SL * SL;
if(distance > 0)
distance = sqrt(distance);
else
flags |= RENDER_DOPPLER | RENDER_DISTANCE;
if(m_pitch->getSpecs().channels != CHANNELS_MONO)
{
m_volume = m_user_volume;
m_pitch->setPitch(m_user_pitch);
return;
}
flags = ~(flags | m_flags | m_device->m_flags);
// Doppler and Pitch
if(flags & RENDER_DOPPLER)
{
float vls;
if(m_relative)
vls = 0;
else
vls = SL * m_device->m_velocity / distance;
float vss = SL * m_velocity / distance;
float max = m_device->m_speed_of_sound / m_device->m_doppler_factor;
if(vss >= max)
{
m_pitch->setPitch(PITCH_MAX);
}
else
{
if(vls > max)
vls = max;
m_pitch->setPitch((m_device->m_speed_of_sound - m_device->m_doppler_factor * vls) / (m_device->m_speed_of_sound - m_device->m_doppler_factor * vss) * m_user_pitch);
}
}
else
m_pitch->setPitch(m_user_pitch);
if(flags & RENDER_VOLUME)
{
// Distance
if(flags & RENDER_DISTANCE)
{
if(m_device->m_distance_model == DISTANCE_MODEL_INVERSE_CLAMPED ||
m_device->m_distance_model == DISTANCE_MODEL_LINEAR_CLAMPED ||
m_device->m_distance_model == DISTANCE_MODEL_EXPONENT_CLAMPED)
{
distance = std::max(std::min(m_distance_max, distance), m_distance_reference);
}
switch(m_device->m_distance_model)
{
case DISTANCE_MODEL_INVERSE:
case DISTANCE_MODEL_INVERSE_CLAMPED:
m_volume = m_distance_reference / (m_distance_reference + m_attenuation * (distance - m_distance_reference));
break;
case DISTANCE_MODEL_LINEAR:
case DISTANCE_MODEL_LINEAR_CLAMPED:
{
float temp = m_distance_max - m_distance_reference;
if(temp == 0)
{
if(distance > m_distance_reference)
m_volume = 0.0f;
else
m_volume = 1.0f;
}
else
m_volume = 1.0f - m_attenuation * (distance - m_distance_reference) / (m_distance_max - m_distance_reference);
break;
}
case DISTANCE_MODEL_EXPONENT:
case DISTANCE_MODEL_EXPONENT_CLAMPED:
if(m_distance_reference == 0)
m_volume = 0;
else
m_volume = std::pow(distance / m_distance_reference, -m_attenuation);
break;
default:
m_volume = 1.0f;
}
}
else
m_volume = 1.0f;
// Cone
if(flags & RENDER_CONE)
{
Vector3 SZ = m_orientation.getLookAt();
float phi = std::acos(float(SZ * SL / (SZ.length() * SL.length())));
float t = (phi - m_cone_angle_inner)/(m_cone_angle_outer - m_cone_angle_inner);
if(t > 0)
{
if(t > 1)
m_volume *= m_cone_volume_outer;
else
m_volume *= 1 + t * (m_cone_volume_outer - 1);
}
}
if(m_volume > m_volume_max)
m_volume = m_volume_max;
else if(m_volume < m_volume_min)
m_volume = m_volume_min;
// Volume
m_volume *= m_user_volume;
}
// 3D Cue
Quaternion orientation;
if(!m_relative)
orientation = m_device->m_orientation;
Vector3 Z = orientation.getLookAt();
Vector3 N = orientation.getUp();
Vector3 A = N * ((SL * N) / (N * N)) - SL;
float Asquare = A * A;
if(Asquare > 0)
{
float phi = std::acos(float(Z * A / (Z.length() * std::sqrt(Asquare))));
if(N.cross(Z) * A > 0)
phi = -phi;
m_mapper->setMonoAngle(phi);
}
else
m_mapper->setMonoAngle(m_relative ? m_user_pan * M_PI / 2.0 : 0);
}
void SoftwareDevice::SoftwareHandle::setSpecs(Specs specs)
{
m_mapper->setChannels(specs.channels);
m_resampler->setRate(specs.rate);
}
bool SoftwareDevice::SoftwareHandle::pause()
{
return pause(false);
}
bool SoftwareDevice::SoftwareHandle::resume()
{
if(m_status)
{
std::lock_guard<ILockable> lock(*m_device);
if(m_status == STATUS_PAUSED)
{
for(auto it = m_device->m_pausedSounds.begin(); it != m_device->m_pausedSounds.end(); it++)
{
if(it->get() == this)
{
std::shared_ptr<SoftwareHandle> This = *it;
m_device->m_pausedSounds.erase(it);
m_device->m_playingSounds.push_back(This);
if(!m_device->m_playback)
m_device->playing(m_device->m_playback = true);
m_status = STATUS_PLAYING;
return true;
}
}
}
}
return false;
}
bool SoftwareDevice::SoftwareHandle::stop()
{
if(!m_status)
return false;
std::lock_guard<ILockable> lock(*m_device);
if(!m_status)
return false;
m_status = STATUS_INVALID;
for(auto it = m_device->m_playingSounds.begin(); it != m_device->m_playingSounds.end(); it++)
{
if(it->get() == this)
{
std::shared_ptr<SoftwareHandle> This = *it;
m_device->m_playingSounds.erase(it);
if(m_device->m_playingSounds.empty())
m_device->playing(m_device->m_playback = false);
return true;
}
}
for(auto it = m_device->m_pausedSounds.begin(); it != m_device->m_pausedSounds.end(); it++)
{
if(it->get() == this)
{
std::shared_ptr<SoftwareHandle> This = *it;
m_device->m_pausedSounds.erase(it);
return true;
}
}
return false;
}
bool SoftwareDevice::SoftwareHandle::getKeep()
{
if(m_status)
return m_keep;
return false;
}
bool SoftwareDevice::SoftwareHandle::setKeep(bool keep)
{
if(!m_status)
return false;
std::lock_guard<ILockable> lock(*m_device);
if(!m_status)
return false;
m_keep = keep;
return true;
}
bool SoftwareDevice::SoftwareHandle::seek(float position)
{
if(!m_status)
return false;
std::lock_guard<ILockable> lock(*m_device);
if(!m_status)
return false;
m_pitch->setPitch(m_user_pitch);
m_reader->seek((int)(position * m_reader->getSpecs().rate));
if(m_status == STATUS_STOPPED)
m_status = STATUS_PAUSED;
return true;
}
float SoftwareDevice::SoftwareHandle::getPosition()
{
if(!m_status)
return false;
std::lock_guard<ILockable> lock(*m_device);
if(!m_status)
return 0.0f;
float position = m_reader->getPosition() / (float)m_device->m_specs.rate;
return position;
}
Status SoftwareDevice::SoftwareHandle::getStatus()
{
return m_status;
}
float SoftwareDevice::SoftwareHandle::getVolume()
{
return m_user_volume;
}
bool SoftwareDevice::SoftwareHandle::setVolume(float volume)
{
if(!m_status)
return false;
m_user_volume = volume;
if(volume == 0)
{
m_old_volume = m_volume = volume;
m_flags |= RENDER_VOLUME;
}
else
m_flags &= ~RENDER_VOLUME;
return true;
}
float SoftwareDevice::SoftwareHandle::getPitch()
{
return m_user_pitch;
}
bool SoftwareDevice::SoftwareHandle::setPitch(float pitch)
{
if(!m_status)
return false;
if(pitch > 0.0f)
m_user_pitch = pitch;
return true;
}
int SoftwareDevice::SoftwareHandle::getLoopCount()
{
if(!m_status)
return 0;
return m_loopcount;
}
bool SoftwareDevice::SoftwareHandle::setLoopCount(int count)
{
if(!m_status)
return false;
if(m_status == STATUS_STOPPED && (count > m_loopcount || count < 0))
m_status = STATUS_PAUSED;
m_loopcount = count;
return true;
}
bool SoftwareDevice::SoftwareHandle::setStopCallback(stopCallback callback, void* data)
{
if(!m_status)
return false;
std::lock_guard<ILockable> lock(*m_device);
if(!m_status)
return false;
m_stop = callback;
m_stop_data = data;
return true;
}
/******************************************************************************/
/******************** SoftwareHandle 3DHandle Code ************************/
/******************************************************************************/
Vector3 SoftwareDevice::SoftwareHandle::getLocation()
{
if(!m_status)
return Vector3();
return m_location;
}
bool SoftwareDevice::SoftwareHandle::setLocation(const Vector3& location)
{
if(!m_status)
return false;
m_location = location;
return true;
}
Vector3 SoftwareDevice::SoftwareHandle::getVelocity()
{
if(!m_status)
return Vector3();
return m_velocity;
}
bool SoftwareDevice::SoftwareHandle::setVelocity(const Vector3& velocity)
{
if(!m_status)
return false;
m_velocity = velocity;
return true;
}
Quaternion SoftwareDevice::SoftwareHandle::getOrientation()
{
if(!m_status)
return Quaternion();
return m_orientation;
}
bool SoftwareDevice::SoftwareHandle::setOrientation(const Quaternion& orientation)
{
if(!m_status)
return false;
m_orientation = orientation;
return true;
}
bool SoftwareDevice::SoftwareHandle::isRelative()
{
if(!m_status)
return false;
return m_relative;
}
bool SoftwareDevice::SoftwareHandle::setRelative(bool relative)
{
if(!m_status)
return false;
m_relative = relative;
return true;
}
float SoftwareDevice::SoftwareHandle::getVolumeMaximum()
{
if(!m_status)
return std::numeric_limits<float>::quiet_NaN();
return m_volume_max;
}
bool SoftwareDevice::SoftwareHandle::setVolumeMaximum(float volume)
{
if(!m_status)
return false;
m_volume_max = volume;
return true;
}
float SoftwareDevice::SoftwareHandle::getVolumeMinimum()
{
if(!m_status)
return std::numeric_limits<float>::quiet_NaN();
return m_volume_min;
}
bool SoftwareDevice::SoftwareHandle::setVolumeMinimum(float volume)
{
if(!m_status)
return false;
m_volume_min = volume;
return true;
}
float SoftwareDevice::SoftwareHandle::getDistanceMaximum()
{
if(!m_status)
return std::numeric_limits<float>::quiet_NaN();
return m_distance_max;
}
bool SoftwareDevice::SoftwareHandle::setDistanceMaximum(float distance)
{
if(!m_status)
return false;
m_distance_max = distance;
return true;
}
float SoftwareDevice::SoftwareHandle::getDistanceReference()
{
if(!m_status)
return std::numeric_limits<float>::quiet_NaN();
return m_distance_reference;
}
bool SoftwareDevice::SoftwareHandle::setDistanceReference(float distance)
{
if(!m_status)
return false;
m_distance_reference = distance;
return true;
}
float SoftwareDevice::SoftwareHandle::getAttenuation()
{
if(!m_status)
return std::numeric_limits<float>::quiet_NaN();
return m_attenuation;
}
bool SoftwareDevice::SoftwareHandle::setAttenuation(float factor)
{
if(!m_status)
return false;
m_attenuation = factor;
if(factor == 0)
m_flags |= RENDER_DISTANCE;
else
m_flags &= ~RENDER_DISTANCE;
return true;
}
float SoftwareDevice::SoftwareHandle::getConeAngleOuter()
{
if(!m_status)
return std::numeric_limits<float>::quiet_NaN();
return m_cone_angle_outer * 360.0f / M_PI;
}
bool SoftwareDevice::SoftwareHandle::setConeAngleOuter(float angle)
{
if(!m_status)
return false;
m_cone_angle_outer = angle * M_PI / 360.0f;
return true;
}
float SoftwareDevice::SoftwareHandle::getConeAngleInner()
{
if(!m_status)
return std::numeric_limits<float>::quiet_NaN();
return m_cone_angle_inner * 360.0f / M_PI;
}
bool SoftwareDevice::SoftwareHandle::setConeAngleInner(float angle)
{
if(!m_status)
return false;
if(angle >= 360)
m_flags |= RENDER_CONE;
else
m_flags &= ~RENDER_CONE;
m_cone_angle_inner = angle * M_PI / 360.0f;
return true;
}
float SoftwareDevice::SoftwareHandle::getConeVolumeOuter()
{
if(!m_status)
return std::numeric_limits<float>::quiet_NaN();
return m_cone_volume_outer;
}
bool SoftwareDevice::SoftwareHandle::setConeVolumeOuter(float volume)
{
if(!m_status)
return false;
m_cone_volume_outer = volume;
return true;
}
/******************************************************************************/
/**************************** IDevice Code ************************************/
/******************************************************************************/
void SoftwareDevice::create()
{
m_playback = false;
m_volume = 1.0f;
m_mixer = std::shared_ptr<Mixer>(new Mixer(m_specs));
m_speed_of_sound = 343.3f;
m_doppler_factor = 1.0f;
m_distance_model = DISTANCE_MODEL_INVERSE_CLAMPED;
m_flags = 0;
m_quality = false;
}
void SoftwareDevice::destroy()
{
if(m_playback)
playing(m_playback = false);
while(!m_playingSounds.empty())
m_playingSounds.front()->stop();
while(!m_pausedSounds.empty())
m_pausedSounds.front()->stop();
}
void SoftwareDevice::mix(data_t* buffer, int length)
{
m_buffer.assureSize(length * AUD_SAMPLE_SIZE(m_specs));
std::lock_guard<std::recursive_mutex> lock(m_mutex);
{
std::shared_ptr<SoftwareDevice::SoftwareHandle> sound;
int len;
int pos;
bool eos;
std::list<std::shared_ptr<SoftwareDevice::SoftwareHandle> > stopSounds;
std::list<std::shared_ptr<SoftwareDevice::SoftwareHandle> > pauseSounds;
sample_t* buf = m_buffer.getBuffer();
m_mixer->clear(length);
// for all sounds
for(auto& sound : m_playingSounds)
{
// get the buffer from the source
pos = 0;
len = length;
// update 3D Info
sound->update();
try
{
sound->m_reader->read(len, eos, buf);
// in case of looping
while(pos + len < length && sound->m_loopcount && eos)
{
m_mixer->mix(buf, pos, len, sound->m_volume, sound->m_old_volume);
pos += len;
if(sound->m_loopcount > 0)
sound->m_loopcount--;
sound->m_reader->seek(0);
len = length - pos;
sound->m_reader->read(len, eos, buf);
// prevent endless loop
if(!len)
break;
}
}
catch(Exception& e)
{
len = 0;
std::cerr << "Caught exception while reading sound data during playback with software mixing: " << e.getMessage() << std::endl;
}
m_mixer->mix(buf, pos, len, sound->m_volume, sound->m_old_volume);
// in case the end of the sound is reached
if(eos && !sound->m_loopcount)
{
if(sound->m_stop)
sound->m_stop(sound->m_stop_data);
if(sound->m_keep)
pauseSounds.push_back(sound);
else
stopSounds.push_back(sound);
}
}
// superpose
m_mixer->read(buffer, m_volume);
// cleanup
for(auto& sound : pauseSounds)
sound->pause(true);
for(auto& sound : stopSounds)
sound->stop();
pauseSounds.clear();
stopSounds.clear();
}
}
void SoftwareDevice::setPanning(IHandle* handle, float pan)
{
SoftwareDevice::SoftwareHandle* h = dynamic_cast<SoftwareDevice::SoftwareHandle*>(handle);
h->m_user_pan = pan;
}
void SoftwareDevice::setQuality(bool quality)
{
m_quality = quality;
}
void SoftwareDevice::setSpecs(Specs specs)
{
m_specs.specs = specs;
m_mixer->setSpecs(specs);
for(auto& sound : m_playingSounds)
{
sound->setSpecs(specs);
}
}
SoftwareDevice::SoftwareDevice()
{
}
DeviceSpecs SoftwareDevice::getSpecs() const
{
return m_specs;
}
std::shared_ptr<IHandle> SoftwareDevice::play(std::shared_ptr<IReader> reader, bool keep)
{
// prepare the reader
// pitch
std::shared_ptr<PitchReader> pitch = std::shared_ptr<PitchReader>(new PitchReader(reader, 1));
reader = std::shared_ptr<IReader>(pitch);
std::shared_ptr<ResampleReader> resampler;
// resample
if(m_quality)
resampler = std::shared_ptr<ResampleReader>(new JOSResampleReader(reader, m_specs.rate));
else
resampler = std::shared_ptr<ResampleReader>(new LinearResampleReader(reader, m_specs.rate));
reader = std::shared_ptr<IReader>(resampler);
// rechannel
std::shared_ptr<ChannelMapperReader> mapper = std::shared_ptr<ChannelMapperReader>(new ChannelMapperReader(reader, m_specs.channels));
reader = std::shared_ptr<IReader>(mapper);
if(!reader.get())
return std::shared_ptr<IHandle>();
// play sound
std::shared_ptr<SoftwareDevice::SoftwareHandle> sound = std::shared_ptr<SoftwareDevice::SoftwareHandle>(new SoftwareDevice::SoftwareHandle(this, reader, pitch, resampler, mapper, keep));
std::lock_guard<std::recursive_mutex> lock(m_mutex);
m_playingSounds.push_back(sound);
if(!m_playback)
playing(m_playback = true);
return std::shared_ptr<IHandle>(sound);
}
std::shared_ptr<IHandle> SoftwareDevice::play(std::shared_ptr<ISound> sound, bool keep)
{
return play(sound->createReader(), keep);
}
void SoftwareDevice::stopAll()
{
std::lock_guard<std::recursive_mutex> lock(m_mutex);
while(!m_playingSounds.empty())
m_playingSounds.front()->stop();
while(!m_pausedSounds.empty())
m_pausedSounds.front()->stop();
}
void SoftwareDevice::lock()
{
m_mutex.lock();
}
void SoftwareDevice::unlock()
{
m_mutex.unlock();
}
float SoftwareDevice::getVolume() const
{
return m_volume;
}
void SoftwareDevice::setVolume(float volume)
{
m_volume = volume;
}
ISynchronizer* SoftwareDevice::getSynchronizer()
{
return &m_synchronizer;
}
/******************************************************************************/
/**************************** 3D Device Code **********************************/
/******************************************************************************/
Vector3 SoftwareDevice::getListenerLocation() const
{
return m_location;
}
void SoftwareDevice::setListenerLocation(const Vector3& location)
{
m_location = location;
}
Vector3 SoftwareDevice::getListenerVelocity() const
{
return m_velocity;
}
void SoftwareDevice::setListenerVelocity(const Vector3& velocity)
{
m_velocity = velocity;
}
Quaternion SoftwareDevice::getListenerOrientation() const
{
return m_orientation;
}
void SoftwareDevice::setListenerOrientation(const Quaternion& orientation)
{
m_orientation = orientation;
}
float SoftwareDevice::getSpeedOfSound() const
{
return m_speed_of_sound;
}
void SoftwareDevice::setSpeedOfSound(float speed)
{
m_speed_of_sound = speed;
}
float SoftwareDevice::getDopplerFactor() const
{
return m_doppler_factor;
}
void SoftwareDevice::setDopplerFactor(float factor)
{
m_doppler_factor = factor;
if(factor == 0)
m_flags |= RENDER_DOPPLER;
else
m_flags &= ~RENDER_DOPPLER;
}
DistanceModel SoftwareDevice::getDistanceModel() const
{
return m_distance_model;
}
void SoftwareDevice::setDistanceModel(DistanceModel model)
{
m_distance_model = model;
if(model == DISTANCE_MODEL_INVALID)
m_flags |= RENDER_DISTANCE;
else
m_flags &= ~RENDER_DISTANCE;
}
AUD_NAMESPACE_END