sdrangel/wdsp/slew.hpp

/*  slew.h

This file is part of a program that implements a Software-Defined Radio.

Copyright (C) 2013 Warren Pratt, NR0V
Copyright (C) 2024 Edouard Griffiths, F4EXB Adapted to SDRangel

This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.

The author can be reached by email at

warren@wpratt.com

*/

#ifndef wdsp_slew_h
#define wdsp_slew_h

#include <atomic>

#include "export.h"

namespace WDSP {

class TXA;

class WDSP_API USLEW
{
public:
    TXA *txa;
    std::atomic<long> *ch_upslew;
    int size;
    float* in;
    float* out;
    float rate;
    float tdelay;
    float tupslew;
    int runmode;
    int state;
    int count;
    int ndelup;
    int ntup;
    float* cup;

    static USLEW* create_uslew (TXA *txa, std::atomic<long> *ch_upslew, int size, float* in, float* out, float rate, float tdelay, float tupslew);
    static void destroy_uslew (USLEW *a);
    static void flush_uslew (USLEW *a);
    static void xuslew (USLEW *a);
    static void setBuffers_uslew (USLEW *a, float* in, float* out);
    static void setSamplerate_uslew (USLEW *a, int rate);
    static void setSize_uslew (USLEW *a, int size);
    // TXA Properties
    static void SetuSlewTime (TXA& txa, float time);

private:
    static void calc_uslew (USLEW *a);
    static void decalc_uslew (USLEW *a);
};

} // namespace WDSP

#endif