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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_DLL
// It works on Windows 8+, where it is included as an OS component.
// This backend is always compiled, but only available if running on Win8+
#pragma once
#include <memory>
#include "AudioCommon/SoundStream.h"
#include "Common/Event.h"
#ifdef _WIN32
struct StreamingVoiceContext;
struct IXAudio2;
struct IXAudio2MasteringVoice;
#endif
class XAudio2 final : public SoundStream
{
#ifdef _WIN32
private:
class Releaser
{
public:
template <typename R>
void operator()(R* ptr)
{
ptr->Release();
}
};
std::unique_ptr<IXAudio2, Releaser> m_xaudio2;
std::unique_ptr<StreamingVoiceContext> 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 void *PXAudio2Create;
static bool InitLibrary();
public:
XAudio2(CMixer *mixer);
virtual ~XAudio2();
virtual bool Start();
virtual void Stop();
virtual void Update();
virtual void Clear(bool mute);
virtual void SetVolume(int volume);
static bool isValid() { return InitLibrary(); }
#else
public:
XAudio2(CMixer *mixer)
: SoundStream(mixer)
{}
#endif
};
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