Function logToLinearScale

include/lmms_math.h:214–225

@brief Scales @value from linear to logarithmic. Value should be within [0,1]

//! @brief Scales @value from linear to logarithmic.
//! Value should be within [0,1]
static inline float logToLinearScale( float min, float max, float value )
{
	if( min < 0 )
	{
		const float mmax = qMax( qAbs( min ), qAbs( max ) );
		const float val = value * ( max - min ) + min;
		float result = signedPowf( val / mmax, F_E ) * mmax;
		return isnan( result ) ? 0 : result;
	}
	float result = powf( value, F_E ) * ( max - min ) + min;
	return isnan( result ) ? 0 : result;
}


//! @brief Scales value from logarithmic to linear. Value should be in min-max range.