114 lines
2.6 KiB
C++
114 lines
2.6 KiB
C++
/*
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QGL OpenGLWindow
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Ivan Pelipenko peri4ko@yandex.ru
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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 Lesser General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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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 Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser 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 "openglwindow.h"
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#include <QCoreApplication>
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#include <QOpenGLContext>
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#include <QOpenGLPaintDevice>
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#include <QPainter>
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OpenGLWindow::OpenGLWindow(QWindow *parent)
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: QWindow(parent)
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, m_context(nullptr)
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, m_device(nullptr)
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{
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setFlags(flags() | Qt::FramelessWindowHint);
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setSurfaceType(QWindow::OpenGLSurface);
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QSurfaceFormat format = QSurfaceFormat::defaultFormat();
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// qDebug() << format;
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#ifdef QT_OPENGL_ES_2
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format.setRenderableType(QSurfaceFormat::OpenGLES);
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#else
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if (QOpenGLContext::openGLModuleType() == QOpenGLContext::LibGL) {
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format.setVersion(4, 0);
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format.setProfile(QSurfaceFormat::CoreProfile);
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}
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#endif
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format.setDepthBufferSize(24);
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format.setSamples(8);
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// format.setStencilBufferSize(8);
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setFormat(format);
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QSurfaceFormat::setDefaultFormat(format);
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}
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OpenGLWindow::~OpenGLWindow() {
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delete m_device;
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}
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void OpenGLWindow::render(QPainter *painter) {
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}
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void OpenGLWindow::initialize() {
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}
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void OpenGLWindow::render() {
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// if (!m_device) m_device = new QOpenGLPaintDevice;
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// glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT);
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// m_device->setSize(size() * devicePixelRatio());
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// m_device->setDevicePixelRatio(devicePixelRatio());
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// QPainter painter(m_device);
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// render(&painter);
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}
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void OpenGLWindow::renderLater() {
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requestUpdate();
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}
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bool OpenGLWindow::event(QEvent *event) {
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switch (event->type()) {
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case QEvent::UpdateRequest:
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renderNow();
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return true;
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default:
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return QWindow::event(event);
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}
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}
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void OpenGLWindow::exposeEvent(QExposeEvent *event) {
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if (isExposed()) renderNow();
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}
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void OpenGLWindow::renderNow() {
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if (!isExposed())
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return;
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bool needsInitialize = false;
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if (!m_context) {
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m_context = new QOpenGLContext(this);
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m_context->setFormat(requestedFormat());
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m_context->create();
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needsInitialize = true;
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}
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m_context->makeCurrent(this);
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if (needsInitialize) {
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initializeOpenGLFunctions();
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initialize();
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}
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render();
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m_context->swapBuffers(this);
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}
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