tetrees/Plugins/Wwise/ThirdParty/include/AK/SoundEngine/Common/AkFPUtilities.h

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/// \file 
/// Floating point performance utilities.

#ifndef _AK_FP_UTILS_H_
#define _AK_FP_UTILS_H_

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

#define AK_FSEL( __a__, __b__, __c__) (((__a__) >= 0) ? (__b__) : (__c__))

/// Branchless (where available) version returning minimum value between two AkReal32 values
static AkForceInline AkReal32 AK_FPMin( AkReal32 fA, AkReal32 fB )
{   
	return (fA < fB ? fA : fB);
} 

/// Branchless (where available) version returning maximum value between two AkReal32 values
static AkForceInline AkReal32 AK_FPMax( AkReal32 fA, AkReal32 fB )
{   
	return (fA > fB ? fA : fB);
}

/// Branchless comparison (where available) setting 3rd argument to 4th argument if 1st argument is greater than 2nd argument.
static AkForceInline void AK_FPSetValGT( AkReal32 in_fComparandA, AkReal32 in_fComparandB, AkReal32 & io_fVariableToSet, AkReal32 in_fValueIfTrue )
{   
	if ( in_fComparandA > in_fComparandB )
		io_fVariableToSet = in_fValueIfTrue;
}

/// Branchless comparison (where available) setting 3rd argument to 4th argument if 1st argument is greater than equal 2nd argument.
static AkForceInline void AK_FPSetValGTE( AkReal32 in_fComparandA, AkReal32 in_fComparandB, AkReal32 & io_fVariableToSet, AkReal32 in_fValueIfTrue )
{   
	if ( in_fComparandA >= in_fComparandB )
		io_fVariableToSet = in_fValueIfTrue;
}

/// Branchless comparison (where available) setting 3rd argument to 4th argument if 1st argument is less than 2nd argument.
static AkForceInline void AK_FPSetValLT( AkReal32 in_fComparandA, AkReal32 in_fComparandB, AkReal32 & io_fVariableToSet, AkReal32 in_fValueIfTrue )
{   
	if ( in_fComparandA < in_fComparandB )
		io_fVariableToSet = in_fValueIfTrue;
}

/// Branchless comparison (where available) setting 3rd argument to 4th argument if 1st argument is less than equal 2nd argument.
static AkForceInline void AK_FPSetValLTE( AkReal32 in_fComparandA, AkReal32 in_fComparandB, AkReal32 & io_fVariableToSet, AkReal32 in_fValueIfTrue )
{   
	if ( in_fComparandA <= in_fComparandB )
		io_fVariableToSet = in_fValueIfTrue;
}

#endif //_AK_FP_UTILS_H_