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/*
* Copyright (C) 2020 Linux Studio Plugins Project <https://lsp-plug.in/>
* (C) 2020 Vladimir Sadovnikov <sadko4u@gmail.com>
*
* This file is part of lsp-dsp-units
* Created on: 08 апр. 2016 г.
*
* lsp-dsp-units is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* any later version.
*
* lsp-dsp-units 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with lsp-dsp-units. If not, see <https://www.gnu.org/licenses/>.
*/
#ifndef LSP_PLUG_IN_DSP_UNITS_CTL_BLINK_H_
#define LSP_PLUG_IN_DSP_UNITS_CTL_BLINK_H_
#include <lsp-plug.in/dsp-units/version.h>
#include <lsp-plug.in/dsp-units/iface/IStateDumper.h>
namespace lsp
{
namespace dspu
{
/** Simple blink counter
*
*/
class LSP_DSP_UNITS_PUBLIC Blink
{
private:
Blink & operator = (const Blink &);
Blink(const Blink &);
protected:
ssize_t nCounter;
ssize_t nTime;
float fOnValue;
float fOffValue;
float fTime;
public:
explicit Blink();
~Blink();
/**
* Construct object
*/
void construct();
/**
* Destroy object
*/
void destroy();
public:
/** Initialize blink
*
* @param sample_rate sample rate
* @param time activity time
*/
void init(size_t sample_rate, float time = 0.1f);
/** Update current sample rate
*
* @param sample_rate current sample rate
*/
void set_sample_rate(size_t sample_rate);
/** Make blinking
*
*/
void blink();
/** Make blinking
* @param value value to display
*/
void blink(float value);
/** Make blinking
*
* @param value value that will be displayed if less than max value
*/
void blink_max(float value);
/** Make blinking
*
* @param value value that will be displayed if less than max value
*/
void blink_min(float value);
/** Set default values
*
* @param on default value for on state
* @param off default value for off state
*/
void set_default(float on, float off);
/** Set default value for off state
*
* @param off default value for off state
*/
void set_default_off(float off);
/** Process blinking
*
* @return activity value
*/
float process(size_t samples);
/** Get current activity value of the blink
*
* @return current activity value of the blink
*/
inline float value() const
{
return (nCounter > 0) ? fOnValue : fOffValue;
}
/**
* Dump the state
* @param dumper dumper
*/
void dump(IStateDumper *v) const;
};
} /* namespace dspu */
} /* namespace lsp */
#endif /* LSP_PLUG_IN_DSP_UNITS_CTL_BLINK_H_ */
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