781dd5edb5
All these files were removed since accidental commit, revert and merge in 2.8.ea31f0ac3b+0a4e170c28+11f9a23a28+7b27b10fa6
80 lines
2.5 KiB
C++
80 lines
2.5 KiB
C++
/*******************************************************************************
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* Copyright 2009-2016 Jörg Müller
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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******************************************************************************/
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#pragma once
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/**
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* @file Accumulator.h
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* @ingroup fx
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* The Accumulator class.
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*/
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#include "fx/Effect.h"
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AUD_NAMESPACE_BEGIN
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class CallbackIIRFilterReader;
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/**
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* This sound creates an accumulator reader.
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*
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* The accumulator adds the difference at the input to the last output in case
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* it's positive. In additive mode it additionaly adds the difference always.
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* So in case the difference is positive, it's added twice.
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*/
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class AUD_API Accumulator : public Effect
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{
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private:
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/**
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* Whether the accumulator is additive.
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*/
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const bool m_additive;
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// delete copy constructor and operator=
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Accumulator(const Accumulator&) = delete;
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Accumulator& operator=(const Accumulator&) = delete;
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public:
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/**
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* Creates a new accumulator sound.
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* \param sound The input sound.
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* \param additive Whether the accumulator is additive.
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*/
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Accumulator(std::shared_ptr<ISound> sound, bool additive = false);
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virtual std::shared_ptr<IReader> createReader();
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/**
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* The accumulatorFilterAdditive function implements the doFilterIIR callback
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* for the additive accumulator filter.
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* @param reader The CallbackIIRFilterReader that executes the callback.
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* @param useless A user defined pointer that is not needed for this filter.
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* @return The filtered sample.
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*/
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static sample_t AUD_LOCAL accumulatorFilterAdditive(CallbackIIRFilterReader* reader, void* useless);
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/**
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* The accumulatorFilter function implements the doFilterIIR callback
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* for the non-additive accumulator filter.
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* @param reader The CallbackIIRFilterReader that executes the callback.
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* @param useless A user defined pointer that is not needed for this filter.
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* @return The filtered sample.
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*/
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static sample_t AUD_LOCAL accumulatorFilter(CallbackIIRFilterReader* reader, void* useless);
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};
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AUD_NAMESPACE_END
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