clizAccumulator.h

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// clizAccumulator.h    -   ClusterLizard header file - Module: Accumulator

// Copyright (C) 2013, 2014 Simeon Knieling, M.Sc.
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this
// file, You can obtain one at http://mozilla.org/MPL/2.0/.
//

//Accumulator Class

#pragma once
#ifndef _INCLUDE_CLIZACCUMULATOR
#define _INCLUDE_CLIZACCUMULATOR

#include "clizSave.h"

namespace cliz
{

    struct AccumulatorHandle
    {
        unsigned int    extChunkSize;   //maximum value of numValidSamples that feedExtChunk() will be called with.
        unsigned int    intChunkSize;   //internal data chunk size. Greater values mean greater delays but less frequent calculations (less CPU usage)
        double          aDBitMuVolts;   //Factor to convert the int16 values from the Data Aquisition System to µV
    };

    class Accumulator
    {
    private:
        AccumulatorHandle               handle;             //Parameter handle
        std::vector<IndicesStruct>      indicesOut;         //Which Modules that receive output from this module need which output?
        std::vector<Save*>              outputSaveVec;      //Output Saves

        float                           *data;              //Data buffer
        unsigned int                    dataPos;            //Current position (end) of data buffer
        uint64_t                        currentTime;        //Current time in µs
        MemoryManager                   memMan;

    public:
        Accumulator(AccumulatorHandle iHandle, std::vector<Save*> &iOutputSaveVec, std::vector<IndicesStruct> &iIndicesOut);

        void    feedExtChunk(signed __int16 *iExtChunk, unsigned int numValidSamples, uint64_t iCurrentTime);

        ~Accumulator()
        {
            memMan.free(data);
        };
    };
}

#endif