CL_RecordQueue.h

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/*
 * PROPRIETARY INFORMATION.  This software is proprietary to
 * Side Effects Software Inc., and is not to be reproduced,
 * transmitted, or disclosed in any way without written permission.
 *
 * NAME:        CL Library (C++)
 *
 * COMMENTS:    Records samples, pushing old ones out of the queue if no
 *              space is available.
 *
 */
#ifndef CL_RECORD_QUEUE_H
#define CL_RECORD_QUEUE_H

#include "CL_API.h"
#include <UT/UT_NonCopyable.h>
#include <SYS/SYS_Types.h>

#define CL_RECORD_MODE_OVERWRITE        0
#define CL_RECORD_MODE_EXTEND           1
#define CL_RECORD_MODE_ADD              2
#define CL_RECORD_MODE_CYCLE            3

class UT_IStream;
class UT_OStream;

class CL_API CL_RecordQueue
{
public:
                 CL_RecordQueue(int mode, int size);
    virtual     ~CL_RecordQueue();

    UT_NON_COPYABLE(CL_RecordQueue)

    void         reset();
    
    void         setRecordMode(int mode);
    void         addSamples(int num, const fpreal *samples);

    int          getFullRangeSize();
    int          getTimeSliceSize();

    int          getFullRange(int max, fpreal *samples);
    int          getTimeSlice(int max, fpreal *samples);
    fpreal       getCurrentFrame();

    fpreal       getSample(fpreal index);

    fpreal      *getData() { return myData; }
    int          size()    { return myRecordPos+1; }
    int          actualSize() { return mySize; }
    
    void         resize(int size, int clear = 0);

    void         save(UT_OStream &os);
    bool         load(UT_IStream &is, int version);

private:

    
    int          myRecordMode;
    int          mySize;
    int          myChunk;
    int          myRecordPos;
    int          myLastRecordPos;
    int          myLastTimeSliceLength;
    int          myCumulativeLength;
    fpreal      *myData;
};


#endif