986267300b
Deleting the old internal audaspace. Major changes from there are: - The whole library was refactored to use C++11. - Many stability and performance improvements. - Major Python API refactor: - Most requested: Play self generated sounds using numpy arrays. - For games: Sound list, random sounds and dynamic music. - Writing sounds to files. - Sequencing API. - Opening sound devices, eg. Jack. - Ability to choose different OpenAL devices in the user settings.
55 lines
1.6 KiB
C++
55 lines
1.6 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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#include "fx/Accumulator.h"
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#include "fx/CallbackIIRFilterReader.h"
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AUD_NAMESPACE_BEGIN
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sample_t Accumulator::accumulatorFilterAdditive(CallbackIIRFilterReader* reader, void* useless)
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{
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float in = reader->x(0);
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float lastin = reader->x(-1);
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float out = reader->y(-1) + in - lastin;
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if(in > lastin)
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out += in - lastin;
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return out;
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}
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sample_t Accumulator::accumulatorFilter(CallbackIIRFilterReader* reader, void* useless)
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{
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float in = reader->x(0);
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float lastin = reader->x(-1);
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float out = reader->y(-1);
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if(in > lastin)
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out += in - lastin;
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return out;
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}
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Accumulator::Accumulator(std::shared_ptr<ISound> sound,
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bool additive) :
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Effect(sound),
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m_additive(additive)
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{
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}
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std::shared_ptr<IReader> Accumulator::createReader()
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{
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return std::shared_ptr<IReader>(new CallbackIIRFilterReader(getReader(), 2, 2, m_additive ? accumulatorFilterAdditive : accumulatorFilter));
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}
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AUD_NAMESPACE_END
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