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/*=============================================================================
	CAAudioHardwareSystem.h

=============================================================================*/
#if !defined(__CAAudioHardwareSystem_h__)
#define __CAAudioHardwareSystem_h__

//=============================================================================
//	Includes
//=============================================================================

//	System Includes
#include <CoreFoundation/CoreFoundation.h>
#include <CoreAudio/CoreAudio.h>

//=============================================================================
//	CAAudioHardwareSystem
//=============================================================================

class CAAudioHardwareSystem
{

//	Operations
public:
	static UInt32			GetNumberDevices();
	static AudioDeviceID	GetDeviceAtIndex(UInt32 inIndex);
	static UInt32			GetIndexForDevice(const AudioDeviceID inDevice);
	static AudioDeviceID	GetDeviceForUID(CFStringRef inUID);
	
	static AudioDeviceID	GetDefaultDevice(bool inIsInput, bool inIsSystem);
	static void				SetDefaultDevice(bool inIsInput, bool inIsSystem, AudioDeviceID inDevice);

	static bool				HasBootChimeVolumeControl();
	static Float32			GetBootChimeVolumeControlValueAsScalar();
	static Float32			GetBootChimeVolumeControlValueAsDB();
	static void				GetBootChimeVolumeControlDBRange(Float32& outMinimum, Float32& outMaximum);
	static void				SetBootChimeVolumeControlValueAsScalar(Float32 inScalarValue);
	static void				SetBootChimeVolumeControlValueAsDB(Float32 inDBValue);
	static Float32			ConvertBootChimeVolumeControlScalarValueToDB(Float32 inScalarValue);
	static Float32			ConvertBootChimeVolumeControlDBValueToScalar(Float32 inDBValue);
	
	static bool				AllowsIdleSleepDuringIO();
	static void				SetAllowsIdleSleepDuringIO(bool inAllowIdleSleep);
	
//	Property Operations
public:
	static bool				HasProperty(AudioHardwarePropertyID inPropertyID);
	static bool				PropertyIsSettable(AudioHardwarePropertyID inPropertyID);
	
	static UInt32			GetPropertyDataSize(AudioHardwarePropertyID inPropertyID);
	static void				GetPropertyData(AudioHardwarePropertyID inPropertyID, UInt32& ioDataSize, void* outData);
	static void				SetPropertyData(AudioHardwarePropertyID inPropertyID, UInt32 inDataSize, const void* inData);
	
	static void				AddPropertyListener(AudioHardwarePropertyID inPropertyID, AudioHardwarePropertyListenerProc inListenerProc, void* inClientData);
	static void				RemovePropertyListener(AudioHardwarePropertyID inPropertyID, AudioHardwarePropertyListenerProc inListenerProc);
	
};

#endif
