dolphin/Source/Core/AudioCommon/XAudio2_7Stream.h

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// Copyright 2013 Dolphin Emulator Project
// Licensed under GPLv2
// Refer to the license.txt file included.
// This audio backend uses XAudio2 via XAudio2_7.dll
// This version of the library is included in the June 2010 DirectX SDK and
// works on all versions of Windows, however the SDK and/or redist must be
// seperately installed.
// Therefore this backend is available iff:
// * SDK is available at compile-time
// * runtime dll is available at runtime
#pragma once
#include <memory>
#include "AudioCommon/SoundStream.h"
#include "Common/Thread.h"
#ifdef _WIN32
#include <Windows.h>
struct StreamingVoiceContext2_7;
struct IXAudio2;
struct IXAudio2MasteringVoice;
#endif
class XAudio2_7 : public SoundStream
{
#ifdef _WIN32
private:
static void ReleaseIXAudio2(IXAudio2 *ptr);
class Releaser
{
public:
template <typename R>
void operator()(R *ptr)
{
ReleaseIXAudio2(ptr);
}
};
std::unique_ptr<IXAudio2, Releaser> m_xaudio2;
std::unique_ptr<StreamingVoiceContext2_7> m_voice_context;
IXAudio2MasteringVoice *m_mastering_voice;
Common::Event m_sound_sync_event;
float m_volume;
const bool m_cleanup_com;
static HMODULE m_xaudio2_dll;
static bool InitLibrary();
public:
XAudio2_7(CMixer *mixer);
virtual ~XAudio2_7();
virtual bool Start();
virtual void Stop();
virtual void Update();
virtual void Clear(bool mute);
virtual void SetVolume(int volume);
virtual bool usesMixer() const;
static bool isValid() { return InitLibrary(); }
#else
public:
XAudio2_7(CMixer *mixer)
: SoundStream(mixer)
{}
#endif
};