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AudioCommon.cpp
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AudioCommon.cpp
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// Copyright 2013 Dolphin Emulator Project
// Licensed under GPLv2
// Refer to the license.txt file included.
#include "AudioCommon/AlsaSoundStream.h"
#include "AudioCommon/AOSoundStream.h"
#include "AudioCommon/AudioCommon.h"
#include "AudioCommon/CoreAudioSoundStream.h"
#include "AudioCommon/Mixer.h"
#include "AudioCommon/NullSoundStream.h"
#include "AudioCommon/OpenALStream.h"
#include "AudioCommon/OpenSLESStream.h"
#include "AudioCommon/PulseAudioStream.h"
#include "AudioCommon/XAudio2_7Stream.h"
#include "AudioCommon/XAudio2Stream.h"
#include "Common/FileUtil.h"
#include "Core/ConfigManager.h"
#include "Core/Movie.h"
// This shouldn't be a global, at least not here.
SoundStream* g_sound_stream = nullptr;
namespace AudioCommon
{
SoundStream* InitSoundStream()
{
CMixer *mixer = new CMixer(48000);
// TODO: possible memleak with mixer
std::string backend = SConfig::GetInstance().sBackend;
if (backend == BACKEND_OPENAL && OpenALStream::isValid())
g_sound_stream = new OpenALStream(mixer);
else if (backend == BACKEND_NULLSOUND && NullSound::isValid())
g_sound_stream = new NullSound(mixer);
else if (backend == BACKEND_XAUDIO2)
{
if (XAudio2::isValid())
g_sound_stream = new XAudio2(mixer);
else if (XAudio2_7::isValid())
g_sound_stream = new XAudio2_7(mixer);
}
else if (backend == BACKEND_AOSOUND && AOSound::isValid())
g_sound_stream = new AOSound(mixer);
else if (backend == BACKEND_ALSA && AlsaSound::isValid())
g_sound_stream = new AlsaSound(mixer);
else if (backend == BACKEND_COREAUDIO && CoreAudioSound::isValid())
g_sound_stream = new CoreAudioSound(mixer);
else if (backend == BACKEND_PULSEAUDIO && PulseAudio::isValid())
g_sound_stream = new PulseAudio(mixer);
else if (backend == BACKEND_OPENSLES && OpenSLESStream::isValid())
g_sound_stream = new OpenSLESStream(mixer);
if (!g_sound_stream && NullSound::isValid())
{
WARN_LOG(DSPHLE, "Could not initialize backend %s, using %s instead.",
backend.c_str(), BACKEND_NULLSOUND);
g_sound_stream = new NullSound(mixer);
}
if (g_sound_stream)
{
UpdateSoundStream();
if (g_sound_stream->Start())
{
if (SConfig::GetInstance().m_DumpAudio)
{
std::string audio_file_name = File::GetUserPath(D_DUMPAUDIO_IDX) + "audiodump.wav";
File::CreateFullPath(audio_file_name);
mixer->StartLogAudio(audio_file_name);
}
return g_sound_stream;
}
PanicAlertT("Could not initialize backend %s.", backend.c_str());
}
PanicAlertT("Sound backend %s is not valid.", backend.c_str());
delete g_sound_stream;
g_sound_stream = nullptr;
return nullptr;
}
void ShutdownSoundStream()
{
INFO_LOG(DSPHLE, "Shutting down sound stream");
if (g_sound_stream)
{
g_sound_stream->Stop();
if (SConfig::GetInstance().m_DumpAudio)
g_sound_stream->GetMixer()->StopLogAudio();
//g_sound_stream->StopLogAudio();
delete g_sound_stream;
g_sound_stream = nullptr;
}
INFO_LOG(DSPHLE, "Done shutting down sound stream");
}
std::vector<std::string> GetSoundBackends()
{
std::vector<std::string> backends;
if (NullSound::isValid())
backends.push_back(BACKEND_NULLSOUND);
if (XAudio2_7::isValid() || XAudio2::isValid())
backends.push_back(BACKEND_XAUDIO2);
if (AOSound::isValid())
backends.push_back(BACKEND_AOSOUND);
if (AlsaSound::isValid())
backends.push_back(BACKEND_ALSA);
if (CoreAudioSound::isValid())
backends.push_back(BACKEND_COREAUDIO);
if (PulseAudio::isValid())
backends.push_back(BACKEND_PULSEAUDIO);
if (OpenALStream::isValid())
backends.push_back(BACKEND_OPENAL);
if (OpenSLESStream::isValid())
backends.push_back(BACKEND_OPENSLES);
return backends;
}
void PauseAndLock(bool doLock, bool unpauseOnUnlock)
{
if (g_sound_stream)
{
// audio typically doesn't maintain its own "paused" state
// (that's already handled by the CPU and whatever else being paused)
// so it should be good enough to only lock/unlock here.
CMixer* pMixer = g_sound_stream->GetMixer();
if (pMixer)
{
std::mutex& csMixing = pMixer->MixerCritical();
if (doLock)
csMixing.lock();
else
csMixing.unlock();
}
}
}
void UpdateSoundStream()
{
if (g_sound_stream)
{
g_sound_stream->SetVolume(SConfig::GetInstance().m_Volume);
}
}
void ClearAudioBuffer(bool mute)
{
if (g_sound_stream)
g_sound_stream->Clear(mute);
}
void SendAIBuffer(short *samples, unsigned int num_samples)
{
if (!g_sound_stream)
return;
CMixer* pMixer = g_sound_stream->GetMixer();
if (pMixer && samples)
{
pMixer->PushSamples(samples, num_samples);
}
g_sound_stream->Update();
}
}