Differential D2716 Diff 9153 extern/audaspace/include/fx/Lowpass.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 Lowpass.h
				* @ingroup fx
				* The Lowpass class.
				*/

				#include "fx/DynamicIIRFilter.h"

				AUD_NAMESPACE_BEGIN

				/**
				* This sound creates a lowpass filter reader.
				*/
				class AUD_API Lowpass : public DynamicIIRFilter
				{
				private:
				// delete copy constructor and operator=
				Lowpass(const Lowpass&) = delete;
				Lowpass& operator=(const Lowpass&) = delete;

				public:
				/**
				* Creates a new lowpass sound.
				* \param sound The input sound.
				* \param frequency The cutoff frequency.
				* \param Q The Q factor.
				*/
				Lowpass(std::shared_ptr<ISound> sound, float frequency, float Q = 1.0f);
				};

				AUD_NAMESPACE_END