mirror of
https://github.com/f4exb/sdrangel.git
synced 2024-11-05 16:31:15 -05:00
127 lines
3.5 KiB
C++
127 lines
3.5 KiB
C++
///////////////////////////////////////////////////////////////////////////////////
|
|
// Copyright (C) 2016 F4EXB //
|
|
// written by Edouard Griffiths //
|
|
// //
|
|
// 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 as version 3 of the License, or //
|
|
// //
|
|
// 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 V3 for more details. //
|
|
// //
|
|
// You should have received a copy of the GNU General Public License //
|
|
// along with this program. If not, see <http://www.gnu.org/licenses/>. //
|
|
///////////////////////////////////////////////////////////////////////////////////
|
|
|
|
#ifndef SDRBASE_DSP_CWKEYER_H_
|
|
#define SDRBASE_DSP_CWKEYER_H_
|
|
|
|
#include <QObject>
|
|
#include <QMutex>
|
|
|
|
#include "util/export.h"
|
|
|
|
/**
|
|
* Ancillary class to smooth out CW transitions with a sine shape
|
|
*/
|
|
class CWSmoother
|
|
{
|
|
public:
|
|
CWSmoother();
|
|
~CWSmoother();
|
|
|
|
void setNbFadeSamples(unsigned int nbFadeSamples);
|
|
bool getFadeSample(bool on, float& sample);
|
|
|
|
private:
|
|
QMutex m_mutex;
|
|
unsigned int m_fadeInCounter;
|
|
unsigned int m_fadeOutCounter;
|
|
unsigned int m_nbFadeSamples;
|
|
float *m_fadeInSamples;
|
|
float *m_fadeOutSamples;
|
|
};
|
|
|
|
class SDRANGEL_API CWKeyer : public QObject {
|
|
Q_OBJECT
|
|
|
|
public:
|
|
typedef enum
|
|
{
|
|
CWNone,
|
|
CWText,
|
|
CWDots,
|
|
CWDashes
|
|
} CWMode;
|
|
|
|
typedef enum
|
|
{
|
|
KeySilent,
|
|
KeyDot,
|
|
KeyDash
|
|
} CWKeyIambicState;
|
|
|
|
typedef enum
|
|
{
|
|
TextStart,
|
|
TextStartChar,
|
|
TextStartElement,
|
|
TextElement,
|
|
TextCharSpace,
|
|
TextWordSpace,
|
|
TextEnd,
|
|
TextStop
|
|
} CWTextState;
|
|
|
|
CWKeyer();
|
|
~CWKeyer();
|
|
|
|
void resetToDefaults();
|
|
QByteArray serialize() const;
|
|
bool deserialize(const QByteArray& data);
|
|
|
|
void setSampleRate(int sampleRate);
|
|
void setWPM(int wpm);
|
|
void setText(const QString& text);
|
|
void setMode(CWMode mode);
|
|
void setLoop(bool loop) { m_loop = loop; }
|
|
void reset() { m_keyIambicState = KeySilent; }
|
|
|
|
CWSmoother& getCWSmoother() { return m_cwSmoother; }
|
|
int getSample();
|
|
bool eom();
|
|
void resetText() { m_textState = TextStart; }
|
|
void stopText() { m_textState = TextStop; }
|
|
|
|
private:
|
|
QMutex m_mutex;
|
|
int m_sampleRate;
|
|
int m_wpm;
|
|
int m_dotLength; //!< dot length in samples
|
|
QString m_text;
|
|
int m_textPointer;
|
|
int m_elementPointer;
|
|
int m_samplePointer;
|
|
bool m_elementSpace;
|
|
bool m_characterSpace;
|
|
bool m_key;
|
|
bool m_dot;
|
|
bool m_dash;
|
|
bool m_elementOn;
|
|
bool m_loop;
|
|
char m_asciiChar;
|
|
CWMode m_mode;
|
|
CWKeyIambicState m_keyIambicState;
|
|
CWTextState m_textState;
|
|
CWSmoother m_cwSmoother;
|
|
|
|
static const signed char m_asciiToMorse[128][7];
|
|
|
|
void nextStateIambic();
|
|
void nextStateText();
|
|
};
|
|
|
|
#endif /* SDRBASE_DSP_CWKEYER_H_ */
|