CallbackIIRFilterReader.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

 
#include "fx/BaseIIRFilterReader.h"
 
AUD_NAMESPACE_BEGIN
 
class CallbackIIRFilterReader;

typedef sample_t (*doFilterIIR)(CallbackIIRFilterReader*, void*);

typedef void (*endFilterIIR)(void*);

class AUD_API CallbackIIRFilterReader : public BaseIIRFilterReader
{
private:
    const doFilterIIR m_filter;

    const endFilterIIR m_endFilter;

    void* m_data;
 
    // delete copy constructor and operator=
    CallbackIIRFilterReader(const CallbackIIRFilterReader&) = delete;
    CallbackIIRFilterReader& operator=(const CallbackIIRFilterReader&) = delete;
 
public:
    CallbackIIRFilterReader(std::shared_ptr<IReader> reader, int in, int out, doFilterIIR doFilter, endFilterIIR endFilter = 0, void* data = nullptr);
 
    virtual ~CallbackIIRFilterReader();
 
    virtual sample_t filter();
};
 
AUD_NAMESPACE_END