mirror of
https://github.com/f4exb/sdrangel.git
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247 lines
6.8 KiB
C++
247 lines
6.8 KiB
C++
///////////////////////////////////////////////////////////////////////////////////
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// Copyright (C) 2018 F4HKW //
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// for F4EXB / SDRAngel //
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// //
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// OpenGL interface modernization. //
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// //
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// This program is free software; you can redistribute it and/or modify //
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// it under the terms of the GNU General Public License as published by //
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// the Free Software Foundation as version 3 of the License, or //
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// (at your option) any later version. //
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// //
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// This program is distributed in the hope that it will be useful, //
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// but WITHOUT ANY WARRANTY; without even the implied warranty of //
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the //
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// GNU General Public License V3 for more details. //
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// //
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// You should have received a copy of the GNU General Public License //
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// along with this program. If not, see <http://www.gnu.org/licenses/>. //
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///////////////////////////////////////////////////////////////////////////////////
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#include <QPainter>
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#include <QMouseEvent>
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#include <QOpenGLContext>
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#include <QOpenGLFunctions>
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#include <QSurface>
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#include "tvscreen.h"
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#include <algorithm>
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#include <QDebug>
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TVScreen::TVScreen(bool blnColor, QWidget* parent) :
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QGLWidget(parent), m_objMutex(QMutex::NonRecursive), m_objGLShaderArray(blnColor)
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{
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setAttribute(Qt::WA_OpaquePaintEvent);
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connect(&m_objTimer, SIGNAL(timeout()), this, SLOT(tick()));
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m_objTimer.start(40); // capped at 25 FPS
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m_chrLastData = NULL;
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m_blnConfigChanged = false;
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m_blnDataChanged = false;
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m_blnGLContextInitialized = false;
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//Par défaut
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m_intAskedCols = TV_COLS;
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m_intAskedRows = TV_ROWS;
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m_cols = TV_COLS;
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m_rows = TV_ROWS;
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}
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TVScreen::~TVScreen()
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{
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cleanup();
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}
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void TVScreen::setColor(bool blnColor)
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{
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m_objGLShaderArray.setColor(blnColor);
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}
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QRgb* TVScreen::getRowBuffer(int intRow)
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{
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if (!m_blnGLContextInitialized)
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{
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return NULL;
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}
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return m_objGLShaderArray.GetRowBuffer(intRow);
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}
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void TVScreen::renderImage(unsigned char * objData)
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{
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m_chrLastData = objData;
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m_blnDataChanged = true;
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}
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void TVScreen::resetImage()
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{
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m_objGLShaderArray.ResetPixels();
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}
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void TVScreen::resetImage(int alpha)
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{
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m_objGLShaderArray.ResetPixels(alpha);
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}
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void TVScreen::resizeTVScreen(int intCols, int intRows)
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{
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qDebug("TVScreen::resizeTVScreen: cols: %d, rows: %d", intCols, intRows);
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m_intAskedCols = intCols;
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m_intAskedRows = intRows;
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m_cols = intCols;
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m_rows = intRows;
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}
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void TVScreen::getSize(int& intCols, int& intRows) const
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{
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intCols = m_cols;
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intRows = m_rows;
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}
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void TVScreen::initializeGL()
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{
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m_objMutex.lock();
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QOpenGLContext *objGlCurrentContext = QOpenGLContext::currentContext();
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if (objGlCurrentContext)
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{
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if (QOpenGLContext::currentContext()->isValid())
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{
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qDebug() << "TVScreen::initializeGL: context:"
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<< " major: " << (QOpenGLContext::currentContext()->format()).majorVersion()
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<< " minor: " << (QOpenGLContext::currentContext()->format()).minorVersion()
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<< " ES: " << (QOpenGLContext::currentContext()->isOpenGLES() ? "yes" : "no");
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}
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else
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{
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qDebug() << "TVScreen::initializeGL: current context is invalid";
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}
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}
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else
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{
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qCritical() << "TVScreen::initializeGL: no current context";
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return;
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}
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QSurface *objSurface = objGlCurrentContext->surface();
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if (objSurface == NULL)
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{
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qCritical() << "TVScreen::initializeGL: no surface attached";
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return;
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}
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else
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{
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if (objSurface->surfaceType() != QSurface::OpenGLSurface)
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{
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qCritical() << "TVScreen::initializeGL: surface is not an OpenGLSurface: "
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<< objSurface->surfaceType()
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<< " cannot use an OpenGL context";
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return;
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}
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else
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{
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qDebug() << "TVScreen::initializeGL: OpenGL surface:"
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<< " class: " << (objSurface->surfaceClass() == QSurface::Window ? "Window" : "Offscreen");
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}
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}
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connect(objGlCurrentContext, &QOpenGLContext::aboutToBeDestroyed, this,
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&TVScreen::cleanup); // TODO: when migrating to QOpenGLWidget
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m_blnGLContextInitialized = true;
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m_objMutex.unlock();
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}
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void TVScreen::resizeGL(int intWidth, int intHeight)
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{
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QOpenGLFunctions *ptrF = QOpenGLContext::currentContext()->functions();
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ptrF->glViewport(0, 0, intWidth, intHeight);
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m_blnConfigChanged = true;
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}
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void TVScreen::paintGL()
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{
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if (!m_objMutex.tryLock(2))
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return;
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m_blnDataChanged = false;
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if ((m_intAskedCols != 0) && (m_intAskedRows != 0))
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{
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m_objGLShaderArray.InitializeGL(m_intAskedCols, m_intAskedRows);
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m_intAskedCols = 0;
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m_intAskedRows = 0;
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}
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m_objGLShaderArray.RenderPixels(m_chrLastData);
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m_objMutex.unlock();
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}
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void TVScreen::mousePressEvent(QMouseEvent* event)
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{
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(void) event;
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}
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void TVScreen::tick()
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{
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if (m_blnDataChanged) {
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update();
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}
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}
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void TVScreen::connectTimer(const QTimer& objTimer)
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{
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qDebug() << "TVScreen::connectTimer";
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disconnect(&m_objTimer, SIGNAL(timeout()), this, SLOT(tick()));
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connect(&objTimer, SIGNAL(timeout()), this, SLOT(tick()));
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m_objTimer.stop();
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}
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void TVScreen::cleanup()
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{
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if (m_blnGLContextInitialized)
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{
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m_objGLShaderArray.Cleanup();
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}
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}
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bool TVScreen::selectRow(int intLine)
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{
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if (m_blnGLContextInitialized)
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{
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return m_objGLShaderArray.SelectRow(intLine);
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}
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else
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{
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return false;
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}
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}
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bool TVScreen::setDataColor(int intCol, int intRed, int intGreen, int intBlue)
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{
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if (m_blnGLContextInitialized)
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{
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return m_objGLShaderArray.SetDataColor(intCol, qRgb(intBlue, intGreen, intRed)); // FIXME: blue <> red inversion in shader
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}
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else
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{
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return false;
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}
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}
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bool TVScreen::setDataColor(int intCol, int intRed, int intGreen, int intBlue, int intAlpha)
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{
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if (m_blnGLContextInitialized)
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{
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return m_objGLShaderArray.SetDataColor(intCol, qRgba(intBlue, intGreen, intRed, intAlpha)); // FIXME: blue <> red inversion in shader
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}
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else
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{
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return false;
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}
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}
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