dolphin/Source/Core/AudioCommon/WASAPIStream.cpp

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2018-02-10 20:03:27 +00:00
// Copyright 2018 Dolphin Emulator Project
// Licensed under GPLv2+
// Refer to the license.txt file included.
#include "AudioCommon/WASAPIStream.h"
#ifdef _WIN32
// clang-format off
#include <Audioclient.h>
#include <comdef.h>
#include <mmdeviceapi.h>
#include <devpkey.h>
#include <functiondiscoverykeys_devpkey.h>
#include <thread>
// clang-format on
#include "Common/Logging/Log.h"
#include "Common/StringUtil.h"
#include "Common/Thread.h"
#include "Core/ConfigManager.h"
#include "VideoCommon/OnScreenDisplay.h"
WASAPIStream::WASAPIStream()
{
CoInitialize(nullptr);
m_format.Format.wFormatTag = WAVE_FORMAT_EXTENSIBLE;
m_format.Format.nChannels = 2;
m_format.Format.nSamplesPerSec = GetMixer()->GetSampleRate();
m_format.Format.nAvgBytesPerSec = m_format.Format.nSamplesPerSec * 4;
m_format.Format.nBlockAlign = 4;
m_format.Format.wBitsPerSample = 16;
m_format.Format.cbSize = sizeof(WAVEFORMATEXTENSIBLE) - sizeof(WAVEFORMATEX);
m_format.Samples.wValidBitsPerSample = m_format.Format.wBitsPerSample;
m_format.dwChannelMask = SPEAKER_FRONT_LEFT | SPEAKER_FRONT_RIGHT;
m_format.SubFormat = KSDATAFORMAT_SUBTYPE_PCM;
}
WASAPIStream::~WASAPIStream()
{
if (m_enumerator)
m_enumerator->Release();
if (m_need_data_event)
CloseHandle(m_need_data_event);
if (m_running)
{
m_running = false;
if (m_thread.joinable())
m_thread.join();
}
CoUninitialize();
}
bool WASAPIStream::isValid()
{
return true;
}
static bool HandleWinAPI(std::string message, HRESULT result)
{
if (result != S_OK)
{
_com_error err(result);
std::string error = TStrToUTF8(err.ErrorMessage()).c_str();
switch (result)
{
case AUDCLNT_E_DEVICE_IN_USE:
error = "Audio endpoint already in use!";
break;
}
ERROR_LOG(AUDIO, "WASAPI: %s: %s", message.c_str(), error.c_str());
}
return result == S_OK;
}
std::vector<std::string> WASAPIStream::GetAvailableDevices()
{
CoInitialize(nullptr);
IMMDeviceEnumerator* enumerator = nullptr;
HRESULT result =
CoCreateInstance(__uuidof(MMDeviceEnumerator), nullptr, CLSCTX_INPROC_SERVER,
__uuidof(IMMDeviceEnumerator), reinterpret_cast<LPVOID*>(&enumerator));
if (!HandleWinAPI("Failed to create MMDeviceEnumerator", result))
return {};
std::vector<std::string> device_names;
IMMDeviceCollection* devices;
result = enumerator->EnumAudioEndpoints(eRender, DEVICE_STATE_ACTIVE, &devices);
if (!HandleWinAPI("Failed to get available devices", result))
{
CoUninitialize();
return {};
}
UINT count;
devices->GetCount(&count);
for (u32 i = 0; i < count; i++)
{
IMMDevice* device;
devices->Item(i, &device);
if (!HandleWinAPI("Failed to get device " + std::to_string(i), result))
continue;
LPWSTR device_id;
device->GetId(&device_id);
IPropertyStore* device_properties;
result = device->OpenPropertyStore(STGM_READ, &device_properties);
if (!HandleWinAPI("Failed to initialize IPropertyStore", result))
continue;
PROPVARIANT device_name;
PropVariantInit(&device_name);
device_properties->GetValue(PKEY_Device_FriendlyName, &device_name);
device_names.push_back(TStrToUTF8(device_name.pwszVal));
PropVariantClear(&device_name);
}
devices->Release();
enumerator->Release();
CoUninitialize();
return device_names;
}
IMMDevice* WASAPIStream::GetDeviceByName(std::string name)
{
CoInitialize(nullptr);
IMMDeviceEnumerator* enumerator = nullptr;
HRESULT result =
CoCreateInstance(__uuidof(MMDeviceEnumerator), nullptr, CLSCTX_INPROC_SERVER,
__uuidof(IMMDeviceEnumerator), reinterpret_cast<LPVOID*>(&enumerator));
if (!HandleWinAPI("Failed to create MMDeviceEnumerator", result))
return nullptr;
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IMMDeviceCollection* devices;
result = enumerator->EnumAudioEndpoints(eRender, DEVICE_STATE_ACTIVE, &devices);
if (!HandleWinAPI("Failed to get available devices", result))
{
return {};
}
UINT count;
devices->GetCount(&count);
for (u32 i = 0; i < count; i++)
{
IMMDevice* device;
devices->Item(i, &device);
if (!HandleWinAPI("Failed to get device " + std::to_string(i), result))
continue;
LPWSTR device_id;
device->GetId(&device_id);
IPropertyStore* device_properties;
result = device->OpenPropertyStore(STGM_READ, &device_properties);
if (!HandleWinAPI("Failed to initialize IPropertyStore", result))
continue;
PROPVARIANT device_name;
PropVariantInit(&device_name);
device_properties->GetValue(PKEY_Device_FriendlyName, &device_name);
if (TStrToUTF8(device_name.pwszVal) == name)
{
devices->Release();
enumerator->Release();
CoUninitialize();
return device;
}
PropVariantClear(&device_name);
}
devices->Release();
enumerator->Release();
CoUninitialize();
return nullptr;
}
bool WASAPIStream::Init()
{
HRESULT result =
CoCreateInstance(__uuidof(MMDeviceEnumerator), nullptr, CLSCTX_INPROC_SERVER,
__uuidof(IMMDeviceEnumerator), reinterpret_cast<LPVOID*>(&m_enumerator));
if (!HandleWinAPI("Failed to create MMDeviceEnumerator", result))
return false;
return true;
}
bool WASAPIStream::SetRunning(bool running)
{
if (running)
{
IMMDevice* device = nullptr;
HRESULT result;
if (SConfig::GetInstance().sWASAPIDevice == "default")
{
result = m_enumerator->GetDefaultAudioEndpoint(eRender, eConsole, &device);
}
else
{
result = S_OK;
device = GetDeviceByName(SConfig::GetInstance().sWASAPIDevice);
if (!device)
{
ERROR_LOG(AUDIO, "Can't find device '%s', falling back to default",
SConfig::GetInstance().sWASAPIDevice.c_str());
result = m_enumerator->GetDefaultAudioEndpoint(eRender, eConsole, &device);
}
}
if (!HandleWinAPI("Failed to obtain default endpoint", result))
return false;
LPWSTR device_id;
device->GetId(&device_id);
// Show a friendly name in the log
IPropertyStore* device_properties;
result = device->OpenPropertyStore(STGM_READ, &device_properties);
if (!HandleWinAPI("Failed to initialize IPropertyStore", result))
return false;
PROPVARIANT device_name;
PropVariantInit(&device_name);
device_properties->GetValue(PKEY_Device_FriendlyName, &device_name);
INFO_LOG(AUDIO, "Using audio endpoint '%s'", TStrToUTF8(device_name.pwszVal).c_str());
PropVariantClear(&device_name);
// Get IAudioDevice
result = device->Activate(__uuidof(IAudioClient), CLSCTX_INPROC_SERVER, nullptr,
reinterpret_cast<LPVOID*>(&m_audio_client));
if (!HandleWinAPI("Failed to activate IAudioClient", result))
{
device->Release();
return false;
}
REFERENCE_TIME device_period = 0;
result = m_audio_client->GetDevicePeriod(nullptr, &device_period);
device_period += SConfig::GetInstance().iLatency * (10000 / m_format.Format.nChannels);
INFO_LOG(AUDIO, "Audio period set to %d", device_period);
if (!HandleWinAPI("Failed to obtain device period", result))
{
device->Release();
m_audio_client->Release();
m_audio_client = nullptr;
return false;
}
result = m_audio_client->Initialize(
AUDCLNT_SHAREMODE_EXCLUSIVE,
AUDCLNT_STREAMFLAGS_EVENTCALLBACK | AUDCLNT_STREAMFLAGS_NOPERSIST, device_period,
device_period, reinterpret_cast<WAVEFORMATEX*>(&m_format), nullptr);
if (result == AUDCLNT_E_UNSUPPORTED_FORMAT)
{
OSD::AddMessage("Your current audio device doesn't support 16-bit 48000 hz PCM audio. WASAPI "
"exclusive mode won't work.",
6000U);
return false;
}
if (result == AUDCLNT_E_BUFFER_SIZE_NOT_ALIGNED)
{
result = m_audio_client->GetBufferSize(&m_frames_in_buffer);
m_audio_client->Release();
if (!HandleWinAPI("Failed to get aligned buffer size", result))
{
device->Release();
m_audio_client->Release();
m_audio_client = nullptr;
return false;
}
// Get IAudioDevice
result = device->Activate(__uuidof(IAudioClient), CLSCTX_INPROC_SERVER, nullptr,
reinterpret_cast<LPVOID*>(&m_audio_client));
if (!HandleWinAPI("Failed to reactivate IAudioClient", result))
{
device->Release();
return false;
}
device_period =
static_cast<REFERENCE_TIME>(
10000.0 * 1000 * m_frames_in_buffer / m_format.Format.nSamplesPerSec + 0.5) +
SConfig::GetInstance().iLatency * 10000;
result = m_audio_client->Initialize(
AUDCLNT_SHAREMODE_EXCLUSIVE,
AUDCLNT_STREAMFLAGS_EVENTCALLBACK | AUDCLNT_STREAMFLAGS_NOPERSIST, device_period,
device_period, reinterpret_cast<WAVEFORMATEX*>(&m_format), nullptr);
}
if (!HandleWinAPI("Failed to initialize IAudioClient", result))
{
device->Release();
m_audio_client->Release();
m_audio_client = nullptr;
return false;
}
result = m_audio_client->GetBufferSize(&m_frames_in_buffer);
if (!HandleWinAPI("Failed to get buffer size from IAudioClient", result))
{
device->Release();
m_audio_client->Release();
m_audio_client = nullptr;
return false;
}
result = m_audio_client->GetService(__uuidof(IAudioRenderClient),
reinterpret_cast<LPVOID*>(&m_audio_renderer));
if (!HandleWinAPI("Failed to get IAudioRenderClient from IAudioClient", result))
{
device->Release();
m_audio_client->Release();
m_audio_client = nullptr;
return false;
}
m_need_data_event = CreateEvent(nullptr, FALSE, FALSE, nullptr);
m_audio_client->SetEventHandle(m_need_data_event);
result = m_audio_client->Start();
if (!HandleWinAPI("Failed to get IAudioRenderClient from IAudioClient", result))
{
device->Release();
m_audio_renderer->Release();
m_audio_renderer = nullptr;
m_audio_client->Release();
m_audio_client = nullptr;
CloseHandle(m_need_data_event);
return false;
}
device->Release();
INFO_LOG(AUDIO, "WASAPI: Successfully initialized!");
m_running = true;
m_thread = std::thread([this] { SoundLoop(); });
m_thread.detach();
}
else
{
m_running = false;
if (m_thread.joinable())
m_thread.join();
while (!m_stopped)
{
}
if (m_audio_client)
{
m_audio_renderer->Release();
m_audio_renderer = nullptr;
m_audio_client->Release();
m_audio_client = nullptr;
}
}
return true;
}
void WASAPIStream::SoundLoop()
{
Common::SetCurrentThreadName("WASAPI Handler");
BYTE* data;
if (m_audio_renderer)
{
m_audio_renderer->GetBuffer(m_frames_in_buffer, &data);
m_audio_renderer->ReleaseBuffer(m_frames_in_buffer, AUDCLNT_BUFFERFLAGS_SILENT);
}
m_stopped = false;
while (m_running)
{
if (!m_audio_renderer)
continue;
WaitForSingleObject(m_need_data_event, 1000);
m_audio_renderer->GetBuffer(m_frames_in_buffer, &data);
GetMixer()->Mix(reinterpret_cast<s16*>(data), m_frames_in_buffer);
float volume = SConfig::GetInstance().m_IsMuted ? 0 : SConfig::GetInstance().m_Volume / 100.;
for (u32 i = 0; i < m_frames_in_buffer * 2; i++)
reinterpret_cast<s16*>(data)[i] = static_cast<s16>(reinterpret_cast<s16*>(data)[i] * volume);
m_audio_renderer->ReleaseBuffer(m_frames_in_buffer, 0);
}
m_stopped = true;
}
#endif // _WIN32