mirror of
https://github.com/f4exb/sdrangel.git
synced 2024-12-23 10:05:46 -05:00
158 lines
4.3 KiB
C++
158 lines
4.3 KiB
C++
///////////////////////////////////////////////////////////////////////////////////
|
|
// Copyright (C) 2020 Vort //
|
|
// Copyright (C) 2018 F4HKW //
|
|
// for F4EXB / SDRAngel //
|
|
// //
|
|
// OpenGL interface modernization. //
|
|
// See: http://doc.qt.io/qt-5/qopenglshaderprogram.html //
|
|
// //
|
|
// 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 //
|
|
// (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 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 INCLUDE_TVSCREENANALOG_H
|
|
#define INCLUDE_TVSCREENANALOG_H
|
|
|
|
#include "export.h"
|
|
|
|
#include <memory>
|
|
#include <algorithm>
|
|
|
|
#include <QMutex>
|
|
#include <QTimer>
|
|
#include <QGLWidget>
|
|
#include <QOpenGLTexture>
|
|
#include <QOpenGLFunctions>
|
|
#include <QOpenGLShaderProgram>
|
|
|
|
class TVScreenAnalogBuffer
|
|
{
|
|
public:
|
|
TVScreenAnalogBuffer(int width, int height)
|
|
{
|
|
m_width = width;
|
|
m_height = height;
|
|
|
|
m_imageData = new int[width * height];
|
|
m_lineShiftData = new int[height];
|
|
m_outOfBoundsLine = new int[width];
|
|
m_currentLine = m_outOfBoundsLine;
|
|
|
|
std::fill(m_imageData, m_imageData + width * height, 0);
|
|
std::fill(m_lineShiftData, m_lineShiftData + height, 127);
|
|
}
|
|
|
|
~TVScreenAnalogBuffer()
|
|
{
|
|
delete[] m_imageData;
|
|
delete[] m_lineShiftData;
|
|
delete[] m_outOfBoundsLine;
|
|
}
|
|
|
|
int getWidth()
|
|
{
|
|
return m_width;
|
|
}
|
|
|
|
int getHeight()
|
|
{
|
|
return m_height;
|
|
}
|
|
|
|
const int* getImageData()
|
|
{
|
|
return m_imageData;
|
|
}
|
|
|
|
const int* getLineShiftData()
|
|
{
|
|
return m_lineShiftData;
|
|
}
|
|
|
|
void selectRow(int line, float shift)
|
|
{
|
|
if ((line < m_height) && (line >= 0))
|
|
{
|
|
m_currentLine = m_imageData + line * m_width;
|
|
m_lineShiftData[line] = (1.0f + shift) * 127.5f;
|
|
}
|
|
else
|
|
{
|
|
m_currentLine = m_outOfBoundsLine;
|
|
}
|
|
}
|
|
|
|
void setSampleValue(int column, int value)
|
|
{
|
|
if ((column < m_width - 2) && (column >= -2))
|
|
{
|
|
m_currentLine[column + 2] = value;
|
|
}
|
|
}
|
|
|
|
private:
|
|
int m_width;
|
|
int m_height;
|
|
|
|
int* m_imageData;
|
|
int* m_lineShiftData;
|
|
|
|
int* m_currentLine;
|
|
int* m_outOfBoundsLine;
|
|
};
|
|
|
|
class SDRGUI_API TVScreenAnalog : public QGLWidget, protected QOpenGLFunctions
|
|
{
|
|
Q_OBJECT
|
|
|
|
QTimer m_updateTimer;
|
|
|
|
bool m_isDataChanged;
|
|
|
|
int m_textureLoc1;
|
|
int m_textureLoc2;
|
|
int m_imageWidthLoc;
|
|
int m_imageHeightLoc;
|
|
int m_texelWidthLoc;
|
|
int m_texelHeightLoc;
|
|
int m_vertexAttribIndex;
|
|
int m_texCoordAttribIndex;
|
|
|
|
QMutex m_buffersMutex;
|
|
std::shared_ptr<TVScreenAnalogBuffer> m_frontBuffer;
|
|
std::shared_ptr<TVScreenAnalogBuffer> m_backBuffer;
|
|
|
|
std::shared_ptr<QOpenGLShaderProgram> m_shader;
|
|
std::shared_ptr<QOpenGLTexture> m_imageTexture;
|
|
std::shared_ptr<QOpenGLTexture> m_lineShiftsTexture;
|
|
|
|
public:
|
|
TVScreenAnalog(QWidget *parent);
|
|
|
|
std::shared_ptr<TVScreenAnalogBuffer> getBackBuffer();
|
|
std::shared_ptr<TVScreenAnalogBuffer> swapBuffers();
|
|
void resizeTVScreen(int intCols, int intRows);
|
|
|
|
private:
|
|
void initializeTextures(std::shared_ptr<TVScreenAnalogBuffer> buffer);
|
|
void initializeGL() override;
|
|
void paintGL() override;
|
|
void resizeGL(int width, int height);
|
|
|
|
private slots:
|
|
void cleanup();
|
|
void tick();
|
|
};
|
|
|
|
#endif // INCLUDE_TVSCREENANALOG_H
|