tetrees/Plugins/Wwise/ThirdParty/include/AK/SoundEngine/Platforms/Windows/AkWinSoundEngine.h

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// AkWinSoundEngine.h

/// \file 
/// Main Sound Engine interface, specific WIN32.

#ifndef _AK_WIN_SOUND_ENGINE_H_
#define _AK_WIN_SOUND_ENGINE_H_

#include <AK/SoundEngine/Common/AkTypes.h>
#include <AK/Tools/Common/AkPlatformFuncs.h>

struct IXAudio2;

/// Platform specific initialization settings
/// \sa AK::SoundEngine::Init
/// \sa AK::SoundEngine::GetDefaultPlatformInitSettings

struct AkPlatformInitSettings
{
    // Direct sound.
    HWND			    hWnd;					///< Handle of the window associated with the audio.
												///< Each game must specify the HWND of the application for device detection purposes.
												///< The value returned by GetDefaultPlatformInitSettings is the foreground HWND at 
												///< the moment of the initialization of the sound engine and might not be the correct one for your game.
												///< Each game must provide the correct HWND to use.
									

    // Threading model.
    AkThreadProperties  threadLEngine;			///< Lower engine threading properties
	AkThreadProperties  threadOutputMgr;		///< Ouput thread threading properties
	AkThreadProperties  threadBankManager;		///< Bank manager threading properties (its default priority is AK_THREAD_PRIORITY_NORMAL)
	AkThreadProperties  threadMonitor;			///< Monitor threading properties (its default priority is AK_THREAD_PRIORITY_ABOVENORMAL). This parameter is not used in Release build.

	// Voices.
	AkUInt16            uNumRefillsInVoice;		///< Number of refill buffers in voice buffer. 2 == double-buffered, defaults to 4.

	AkUInt32			uSampleRate;			///< Sampling Rate. Default is 48000 Hz. Use 24000hz for low quality. Any positive reasonable sample rate is supported. However be careful setting a custom value. Using an odd or really low sample rate may result in malfunctionning sound engine.

	bool				bEnableAvxSupport;		///< Enables run-time detection of AVX and AVX2 SIMD support in the engine and plug-ins. Disabling this may improve CPU performance by allowing for higher CPU clockspeeds.

	AkUInt32			uMaxSystemAudioObjects; ///< Dictates how many Microsoft Spatial Sound dynamic objects will be reserved by the System sink. On Windows, other running processes will be prevented from reserving these objects. Set to 0 to disable the use of System Audio Objects. Default is 128.
};

struct IDirectSound8;
struct IXAudio2;
struct IMMDevice;
struct IUnknown;

namespace AK
{
	/// Finds the device ID for particular Audio Endpoint. 
	/// \note CoInitialize must have been called for the calling thread.  See Microsoft's documentation about CoInitialize for more details.
	/// \return A device ID to use with AkPlatformInitSettings.idAudioDevice
	AK_EXTERNAPIFUNC( AkUInt32, GetDeviceID ) (IMMDevice* in_pDevice);

	/// Finds an audio endpoint that matches the token in the device name or device ID and returns an ID.  
	/// This is a helper function that searches in the device ID (as returned by IMMDevice->GetId) and 
	/// in the property PKEY_Device_FriendlyName.  The token parameter is case-sensitive.  If you need to do matching on different conditions, use IMMDeviceEnumerator directly and AK::GetDeviceID.
	/// \note CoInitialize must have been called for the calling thread.  See Microsoft's documentation about CoInitialize for more details.
	/// \return The device ID as returned by IMMDevice->GetId, hashed by AK::SoundEngine::GetIDFromName()
	AK_EXTERNAPIFUNC( AkUInt32, GetDeviceIDFromName )(wchar_t* in_szToken);

	/// Get the user-friendly name for the specified device.  Call repeatedly with index starting at 0 and increasing to get all available devices, including disabled and unplugged devices, until the returned string is null and out_uDeviceID is AK_INVALID_DEVICE_ID.
	/// The number of indexable devices for the given uDeviceStateMask can be fetched by calling AK::SoundEngine::GetWindowsDeviceCount().
	/// You can also get the default device information by specifying index=-1.  The default device is the one with a green checkmark in the Audio Playback Device panel in Windows.
	/// The returned out_uDeviceID parameter is the Device ID to use with Wwise.  Use it to specify the main device in AkPlatformInitSettings.idAudioDevice. 
	/// \note CoInitialize must have been called for the calling thread.  See Microsoft's documentation about CoInitialize for more details.
	/// \return The name of the device at the "index" specified.  The pointer is valid until the next call to GetWindowsDeviceName.
	AK_EXTERNAPIFUNC(const wchar_t*, GetWindowsDeviceName) (
		AkInt32 index,			 ///< Index of the device in the array.  -1 to get information on the default device.
		AkUInt32 &out_uDeviceID, ///< Device ID for Wwise.  This is the same as what is returned from AK::GetDeviceID and AK::GetDeviceIDFromName.  Use it to specify the main device in AkPlatformInitSettings.idAudioDevice. 
		AkAudioDeviceState uDeviceStateMask = AkDeviceState_All ///< Optional bitmask used to filter the device based on their state.
		);

	/// Get the number of Audio Endpoints available for the specified device state mask.
	/// \note CoInitialize must have been called for the calling thread.  See Microsoft's documentation about CoInitialize for more details.
	/// \return The number of Audio Endpoints available for the specified device state mask.
	AK_EXTERNAPIFUNC( AkUInt32, GetWindowsDeviceCount ) (
		AkAudioDeviceState uDeviceStateMask = AkDeviceState_All ///< Optional bitmask used to filter the device based on their state.
		);

	/// Get the Audio Endpoint for the specified device index.  Call repeatedly with index starting at 0 and increasing to get all available devices, including disabled and unplugged devices, until the false is returned.
	/// You can also get the default device information by specifying index=-1.  The default device is the one with a green checkmark in the Audio Playback Device panel in Windows.
	/// The returned out_uDeviceID parameter is the Device ID to use with Wwise.  Use it to specify the main device in AkPlatformInitSettings.idAudioDevice. 
	/// The returned out_ppDevice is a pointer to a pointer variable to which the method writes the address of the IMMDevice. out_ppDevice is optional; if it is null, then no action is taken. 
	/// If the method returns false, *out_ppDevice is null and out_uDeviceID is AK_INVALID_DEVICE_ID. If the method successed, *out_ppDevice will be a counted reference to the interface, and the caller is responsible for releasing the interface when it is no longer needed, by calling Release(), or encapsulating the device in a COM Smart Pointer.
	/// \note CoInitialize must have been called for the calling thread.  See Microsoft's documentation about CoInitialize for more details.
	/// \return Whether or not a device was found at the given index.
	AK_EXTERNAPIFUNC( bool, GetWindowsDevice) (
		AkInt32 in_index,			///< Index of the device in the array.  -1 to get information on the default device.
		AkUInt32& out_uDeviceID,	///< Device ID for Wwise.  This is the same as what is returned from AK::GetDeviceID and AK::GetDeviceIDFromName.  Use it to specify the main device in AkPlatformInitSettings.idAudioDevice. 
		IMMDevice** out_ppDevice,	///< pointer to a pointer variable to which the method writes the address of the IMMDevice in question.
		AkAudioDeviceState uDeviceStateMask = AkDeviceState_All ///< Optional bitmask used to filter the device based on their state.
		);

};

#endif //_AK_WIN_SOUND_ENGINE_H_