Remove XAudio2

Audio on Windows is provided by the cubeb (shared mode) and WASAPI
(exclusive mode) backends, both of which exhibit lower latency.

1 files changed, 0 insertions, 309 deletions

diff --git a/Source/Core/AudioCommon/XAudio2Stream.cpp b/Source/Core/AudioCommon/XAudio2Stream.cpp
deleted file mode 100644
index 6ed4ee3ab5..0000000000
--- a/Source/Core/AudioCommon/XAudio2Stream.cpp
+++ /dev/null
@@ -1,309 +0,0 @@
-// Copyright 2010 Dolphin Emulator Project
-// Licensed under GPLv2+
-// Refer to the license.txt file included.
-
-#include <variant>
-
-#include <xaudio2.h>
-#include "AudioCommon/AudioCommon.h"
-#include "AudioCommon/XAudio2Stream.h"
-#include "Common/Event.h"
-#include "Common/Logging/Log.h"
-#include "Common/MsgHandler.h"
-#include "Core/ConfigManager.h"
-
-#ifndef XAUDIO2_DLL
-#error You are building this module against the wrong version of DirectX. You probably need to remove DXSDK_DIR from your include path.
-#endif
-
-struct StreamingVoiceContext : public IXAudio2VoiceCallback
-{
-private:
-  Mixer* const m_mixer;
-  Common::Event& m_sound_sync_event;
-  IXAudio2SourceVoice* m_source_voice;
-  std::variant<std::unique_ptr<short[]>, std::unique_ptr<float[]>> xaudio_buffer;
-
-  void SubmitBuffer(PBYTE buf_data);
-
-  bool m_use_surround = SConfig::GetInstance().bDPL2Decoder;
-
-public:
-  StreamingVoiceContext(IXAudio2* pXAudio2, Mixer* pMixer, Common::Event& pSyncEvent);
-  virtual ~StreamingVoiceContext();
-
-  void Stop();
-  void Play();
-
-  STDMETHOD_(void, OnVoiceError)(THIS_ void* pBufferContext, HRESULT Error) {}
-  STDMETHOD_(void, OnVoiceProcessingPassStart)(UINT32) {}
-  STDMETHOD_(void, OnVoiceProcessingPassEnd)() {}
-  STDMETHOD_(void, OnBufferStart)(void*) {}
-  STDMETHOD_(void, OnLoopEnd)(void*) {}
-  STDMETHOD_(void, OnStreamEnd)() {}
-  STDMETHOD_(void, OnBufferEnd)(void* context);
-};
-
-const int NUM_BUFFERS = 3;
-const int SAMPLES_PER_BUFFER = 96;
-const int SAMPLES_PER_BUFFER_SURROUND = 256;
-
-const int NUM_CHANNELS = 2;
-const int BUFFER_SIZE = SAMPLES_PER_BUFFER * NUM_CHANNELS;
-const int BUFFER_SIZE_BYTES = BUFFER_SIZE * sizeof(s16);
-
-const int NUM_CHANNELS_SURROUND = 6;
-const int BUFFER_SIZE_SURROUND = SAMPLES_PER_BUFFER_SURROUND * NUM_CHANNELS_SURROUND;
-const int BUFFER_SIZE_BYTES_SURROUND = BUFFER_SIZE_SURROUND * sizeof(float);
-void StreamingVoiceContext::SubmitBuffer(PBYTE buf_data)
-{
-  XAUDIO2_BUFFER buf = {};
-  if (m_use_surround)
-  {
-    buf.AudioBytes = BUFFER_SIZE_BYTES_SURROUND;
-  }
-  else
-  {
-    buf.AudioBytes = BUFFER_SIZE_BYTES;
-  }
-  buf.pContext = buf_data;
-  buf.pAudioData = buf_data;
-
-  m_source_voice->SubmitSourceBuffer(&buf);
-}
-
-StreamingVoiceContext::StreamingVoiceContext(IXAudio2* pXAudio2, Mixer* pMixer,
-                                             Common::Event& pSyncEvent)
-    : m_mixer(pMixer), m_sound_sync_event(pSyncEvent)
-{
-  WAVEFORMATEXTENSIBLE wfx = {};
-  wfx.Format.wFormatTag = WAVE_FORMAT_EXTENSIBLE;
-  wfx.Format.nSamplesPerSec = m_mixer->GetSampleRate();
-
-  // More information about these values:
-  // https://msdn.microsoft.com/en-us/library/windows/desktop/dd390971(v=vs.85).aspx
-  if (m_use_surround)
-  {
-    xaudio_buffer = std::make_unique<float[]>(NUM_BUFFERS * BUFFER_SIZE_SURROUND);
-
-    wfx.Format.nChannels = 6;
-    wfx.Format.wBitsPerSample = 32;
-    wfx.Samples.wValidBitsPerSample = 32;
-    wfx.dwChannelMask = SPEAKER_FRONT_LEFT | SPEAKER_FRONT_RIGHT | SPEAKER_FRONT_CENTER |
-                        SPEAKER_LOW_FREQUENCY | SPEAKER_BACK_LEFT | SPEAKER_BACK_RIGHT;
-    wfx.SubFormat = KSDATAFORMAT_SUBTYPE_IEEE_FLOAT;
-    wfx.Format.cbSize = sizeof(wfx.Samples) + sizeof(wfx.dwChannelMask) + sizeof(wfx.SubFormat);
-  }
-  else
-  {
-    xaudio_buffer = std::make_unique<short[]>(NUM_BUFFERS * BUFFER_SIZE);
-
-    wfx.Format.nChannels = 2;
-    wfx.Format.wBitsPerSample = 16;
-    wfx.Samples.wValidBitsPerSample = 16;
-    wfx.dwChannelMask = SPEAKER_FRONT_LEFT | SPEAKER_FRONT_RIGHT;
-    wfx.SubFormat = KSDATAFORMAT_SUBTYPE_PCM;
-    wfx.Format.cbSize = sizeof(WAVEFORMATEXTENSIBLE) - sizeof(WAVEFORMATEX);
-  }
-
-  wfx.Format.nBlockAlign = wfx.Format.nChannels * wfx.Format.wBitsPerSample / 8;
-  wfx.Format.nAvgBytesPerSec = wfx.Format.nSamplesPerSec * wfx.Format.nBlockAlign;
-
-  // create source voice
-  HRESULT hr;
-  if (FAILED(hr = pXAudio2->CreateSourceVoice(&m_source_voice, &wfx.Format, XAUDIO2_VOICE_NOSRC,
-                                              1.0f, this)))
-  {
-    PanicAlert("XAudio2 CreateSourceVoice failed: %#X", hr);
-    return;
-  }
-
-  m_source_voice->Start();
-
-  // start buffers with silence
-  if (m_use_surround)
-  {
-    for (int i = 0; i != NUM_BUFFERS; ++i)
-    {
-      SubmitBuffer(
-          reinterpret_cast<BYTE*>(std::get<std::unique_ptr<float[]>>(xaudio_buffer).get()) +
-          (i * BUFFER_SIZE_BYTES_SURROUND));
-    }
-  }
-  else
-  {
-    for (int i = 0; i != NUM_BUFFERS; ++i)
-    {
-      SubmitBuffer(
-          reinterpret_cast<BYTE*>(std::get<std::unique_ptr<short[]>>(xaudio_buffer).get()) +
-          (i * BUFFER_SIZE_BYTES));
-    }
-  }
-}
-
-StreamingVoiceContext::~StreamingVoiceContext()
-{
-  if (m_source_voice)
-  {
-    m_source_voice->Stop();
-    m_source_voice->DestroyVoice();
-  }
-}
-
-void StreamingVoiceContext::Stop()
-{
-  if (m_source_voice)
-    m_source_voice->Stop();
-}
-
-void StreamingVoiceContext::Play()
-{
-  if (m_source_voice)
-    m_source_voice->Start();
-}
-
-void StreamingVoiceContext::OnBufferEnd(void* context)
-{
-  //  buffer end callback; gets SAMPLES_PER_BUFFER samples for a new buffer
-
-  if (!m_source_voice || !context)
-    return;
-
-  // m_sound_sync_event->Wait(); // sync
-  // m_sound_sync_event->Spin(); // or tight sync
-
-  if (m_use_surround)
-  {
-    m_mixer->MixSurround(static_cast<float*>(context), SAMPLES_PER_BUFFER_SURROUND);
-  }
-  else
-  {
-    m_mixer->Mix(static_cast<short*>(context), SAMPLES_PER_BUFFER);
-  }
-  SubmitBuffer(reinterpret_cast<BYTE*>(context));
-}
-
-HMODULE XAudio2::m_xaudio2_dll = nullptr;
-typedef decltype(&XAudio2Create) XAudio2Create_t;
-void* XAudio2::PXAudio2Create = nullptr;
-
-bool XAudio2::InitLibrary()
-{
-  if (m_xaudio2_dll)
-  {
-    return true;
-  }
-
-  m_xaudio2_dll = ::LoadLibrary(XAUDIO2_DLL);
-  if (!m_xaudio2_dll)
-  {
-    return false;
-  }
-
-  if (!PXAudio2Create)
-  {
-    PXAudio2Create = (XAudio2Create_t)::GetProcAddress(m_xaudio2_dll, "XAudio2Create");
-    if (!PXAudio2Create)
-    {
-      ::FreeLibrary(m_xaudio2_dll);
-      m_xaudio2_dll = nullptr;
-      return false;
-    }
-  }
-
-  return true;
-}
-
-XAudio2::XAudio2()
-    : m_mastering_voice(nullptr), m_volume(1.0f),
-      m_cleanup_com(SUCCEEDED(CoInitializeEx(nullptr, COINIT_MULTITHREADED)))
-{
-}
-
-XAudio2::~XAudio2()
-{
-  Stop();
-  if (m_cleanup_com)
-    CoUninitialize();
-}
-
-bool XAudio2::Init()
-{
-  HRESULT hr;
-
-  // callback doesn't seem to run on a specific CPU anyways
-  IXAudio2* xaudptr;
-  if (FAILED(hr = ((XAudio2Create_t)PXAudio2Create)(&xaudptr, 0, XAUDIO2_DEFAULT_PROCESSOR)))
-  {
-    PanicAlert("XAudio2 init failed: %#X", hr);
-    Stop();
-    return false;
-  }
-  m_xaudio2 = std::unique_ptr<IXAudio2, Releaser>(xaudptr);
-
-  // XAudio2 master voice
-  // XAUDIO2_DEFAULT_CHANNELS instead of 2 for expansion?
-  uint channels = NUM_CHANNELS;
-  if (SConfig::GetInstance().bDPL2Decoder)
-    channels = NUM_CHANNELS_SURROUND;
-
-  if (FAILED(hr = m_xaudio2->CreateMasteringVoice(&m_mastering_voice, channels,
-                                                  m_mixer->GetSampleRate())))
-  {
-    PanicAlert("XAudio2 master voice creation failed: %#X", hr);
-    Stop();
-    return false;
-  }
-
-  // Volume
-  m_mastering_voice->SetVolume(m_volume);
-
-  m_voice_context = std::unique_ptr<StreamingVoiceContext>(
-      new StreamingVoiceContext(m_xaudio2.get(), m_mixer.get(), m_sound_sync_event));
-
-  return true;
-}
-
-void XAudio2::SetVolume(int volume)
-{
-  // linear 1- .01
-  m_volume = (float)volume / 100.f;
-
-  if (m_mastering_voice)
-    m_mastering_voice->SetVolume(m_volume);
-}
-
-bool XAudio2::SetRunning(bool running)
-{
-  if (!m_voice_context)
-    return false;
-
-  if (running)
-    m_voice_context->Play();
-  else
-    m_voice_context->Stop();
-
-  return true;
-}
-
-void XAudio2::Stop()
-{
-  // m_sound_sync_event.Set();
-
-  m_voice_context.reset();
-
-  if (m_mastering_voice)
-  {
-    m_mastering_voice->DestroyVoice();
-    m_mastering_voice = nullptr;
-  }
-
-  m_xaudio2.reset();  // release interface
-
-  if (m_xaudio2_dll)
-  {
-    ::FreeLibrary(m_xaudio2_dll);
-    m_xaudio2_dll = nullptr;
-    PXAudio2Create = nullptr;
-  }
-}