107 lines
2.1 KiB
C++
107 lines
2.1 KiB
C++
#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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#include <qopenglext.h>
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OpenGLWindow::OpenGLWindow(QWindow *parent) : QWindow(parent) {
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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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#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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setFormat(format);
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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::setVSync(bool on) {
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QSurfaceFormat f = requestedFormat();
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if (on) {
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if (f.swapInterval() != 1) {
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f.setSwapInterval(1);
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setFormat(f);
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format_change = true;
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}
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} else {
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if (f.swapInterval() != 0) {
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f.setSwapInterval(0);
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setFormat(f);
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format_change = true;
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}
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}
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}
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bool OpenGLWindow::getVSync() const {
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return (requestedFormat().swapInterval() == 1);
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}
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//void OpenGLWindow::setSamples(int samples) {
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// QSurfaceFormat f = requestedFormat();
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// if (f.samples() != samples) {
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// f.setSamples(samples);
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// setFormat(f);
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// format_change = true;
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// }
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//}
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//int OpenGLWindow::getSamples() const {
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// return requestedFormat().samples();
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//}
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void OpenGLWindow::renderNow() {
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if (!isExposed()) return;
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bool needsInitialize = false;
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if (!m_context || format_change) {
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if (m_context) delete 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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format_change = false;
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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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frame_cnt++;
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}
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