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