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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
// separately installed.
// Therefore this backend is available iff:
// * SDK is available at compile-time
// * runtime dll is available at runtime
// Dolphin ships the relevant SDK headers in Externals, so it's always available.
#pragma once
#include <memory>
#include "AudioCommon/SoundStream.h"
#include "Common/Event.h"
#ifdef _WIN32
#include <Windows.h>
struct StreamingVoiceContext2_7;
struct IXAudio2;
struct IXAudio2MasteringVoice;
#endif
class XAudio2_7 final : 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();
void Stop();
public:
XAudio2_7();
~XAudio2_7() override;
bool Init() override;
bool SetRunning(bool running) override;
void SetVolume(int volume) override;
static bool isValid() { return InitLibrary(); }
#endif
};
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