Differential D2716 Diff 9153 extern/audaspace/include/fx/HighpassCalculator.h

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extern/audaspace/include/fx/HighpassCalculator.h

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				/*******************************************************************************
				* Copyright 2009-2016 Jörg Müller
				*
				* Licensed under the Apache License, Version 2.0 (the "License");
				* you may not use this file except in compliance with the License.
				* You may obtain a copy of the License at
				*
				* http://www.apache.org/licenses/LICENSE-2.0
				*
				* Unless required by applicable law or agreed to in writing, software
				* distributed under the License is distributed on an "AS IS" BASIS,
				* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
				* See the License for the specific language governing permissions and
				* limitations under the License.
				******************************************************************************/

				#pragma once

				/**
				* @file HighpassCalculator.h
				* @ingroup fx
				* The HighpassCalculator class.
				*/

				#include "fx/IDynamicIIRFilterCalculator.h"

				AUD_NAMESPACE_BEGIN

				/**
				* The HighpassCalculator class calculates high pass filter coefficients for a
				* dynamic DynamicIIRFilter.
				*/
				class AUD_LOCAL HighpassCalculator : public IDynamicIIRFilterCalculator
				{
				private:
				/**
				* The cutoff frequency.
				*/
				const float m_frequency;

				/**
				* The Q factor.
				*/
				const float m_Q;

				// delete copy constructor and operator=
				HighpassCalculator(const HighpassCalculator&) = delete;
				HighpassCalculator& operator=(const HighpassCalculator&) = delete;

				public:
				/**
				* Creates a HighpassCalculator object.
				* @param frequency The cutoff frequency.
				* @param Q The Q factor of the filter. If unsure, use 1.0 as default.
				*/
				HighpassCalculator(float frequency, float Q);

				virtual void recalculateCoefficients(SampleRate rate, std::vector<float> &b, std::vector<float> &a);
				};

				AUD_NAMESPACE_END