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OpenCV_SynchronizedGLWidget.cpp
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OpenCV_SynchronizedGLWidget.cpp
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#include "OpenCV_SynchronizedGLWidget.h"
#include <iostream>
OpenCV_SynchronizedGLWidget::OpenCV_SynchronizedGLWidget(QWidget* parent, const QGLWidget* shareWidget, Qt::WindowFlags f) :
OpenCV_GLWidget(parent, shareWidget, f){}
OpenCV_SynchronizedGLWidget::~OpenCV_SynchronizedGLWidget() {}
void OpenCV_SynchronizedGLWidget::renderImage(const QImage& frame){
this->_bufferLock.lock();
this->_GLFrame = QGLWidget::convertToGLFormat(frame);
this->_bufferLock.unlock();
this->updateGL();
}
void OpenCV_SynchronizedGLWidget::resizeGL(int width, int height){
this->_paintLock.lock();
OpenCV_GLWidget::resizeGL(width,height);
this->_paintLock.unlock();
}
void OpenCV_SynchronizedGLWidget::paintGL() {
this->_paintLock.lock();
glClear (GL_COLOR_BUFFER_BIT);
glClearColor (0.0, 0.0, 0.0, 1.0);
this->_bufferLock.lock();
QImage current = this->_GLFrame;
this->_bufferLock.unlock();
if (!current.isNull()) {
current = current.scaled(size(), Qt::IgnoreAspectRatio, Qt::SmoothTransformation);
//glDrawPixels(current.width(),current.height(), GL_RGBA, GL_UNSIGNED_BYTE, current.bits());
glEnable(GL_TEXTURE_2D);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glTexImage2D( GL_TEXTURE_2D, 0, GL_RGBA, current.width(), current.height(), 0, GL_RGBA, GL_UNSIGNED_BYTE, current.bits() );
glBegin(GL_QUADS);
glTexCoord2f(0, 0); glVertex2f(0, current.height());
glTexCoord2f(0, 1); glVertex2f(0, 0);
glTexCoord2f(1, 1); glVertex2f(current.width(), 0);
glTexCoord2f(1, 0); glVertex2f(current.width(), current.height());
glEnd();
glDisable(GL_TEXTURE_2D);
glFlush();
/*
QPainter p(this);
//Set the painter to use a smooth scaling algorithm.
p.setRenderHint(QPainter::SmoothPixmapTransform, 1);
p.drawImage(this->rect(), current);*/
}
this->_paintLock.unlock();
}