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++ // Copyright (C) 2017 The Qt Company Ltd.
++ // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
++
++ #include <QGuiApplication>
++ #include <QtGui/private/qguiapplication_p.h>
++ #include <QOpenGLWindow>
++ #include <QOpenGLTexture>
++ #include <QOpenGLTextureBlitter>
++ #include <QPainter>
++ #include <QMouseEvent>
++ #include <QPlatformSurfaceEvent>
++
++ #include <QtWaylandClient/private/qwaylanddisplay_p.h>
++ #include <QtWaylandClient/private/qwaylandintegration_p.h>
++ #include <QtWaylandClient/private/qwaylandserverbufferintegration_p.h>
++ #include "sharebufferextension.h"
++
++ #include <QDebug>
++ #include <QtGui/qpa/qplatformnativeinterface.h>
++ #include <QTimer>
++ #include <QMap>
++
++ class TestWindow : public QOpenGLWindow
++ {
++ Q_OBJECT
++
++ public:
++ TestWindow()
++ {
++ m_extension = new ShareBufferExtension;
++ connect(m_extension, SIGNAL(bufferReceived(QtWaylandClient::QWaylandServerBuffer*)), this, SLOT(receiveBuffer(QtWaylandClient::QWaylandServerBuffer*)));
++ }
++
++ public slots:
++ void receiveBuffer(QtWaylandClient::QWaylandServerBuffer *buffer)
++ {
++ m_buffers.append(buffer);
++ update();
++ }
++
++ protected:
++
++ void initializeGL() override
++ {
++ m_blitter = new QOpenGLTextureBlitter;
++ m_blitter->create();
++ }
++
++ void paintGL() override {
++ glClearColor(.5, .45, .42, 1.);
++ glClear(GL_COLOR_BUFFER_BIT);
++ int x = 0;
++ glEnable(GL_BLEND);
++ glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
++
++ for (auto buffer: m_buffers) {
++ m_blitter->bind();
++ QPointF pos(x,0);
++ QSize s(buffer->size());
++ QRectF targetRect(pos, s);
++ QOpenGLTexture *texture = buffer->toOpenGlTexture();
++ auto surfaceOrigin = QOpenGLTextureBlitter::OriginTopLeft;
++ QMatrix4x4 targetTransform = QOpenGLTextureBlitter::targetTransform(targetRect, QRect(QPoint(), size()));
++ m_blitter->blit(texture->textureId(), targetTransform, surfaceOrigin);
++ m_blitter->release();
++ x += s.width() + 10;
++ }
++ }
++
++ private:
++
++ QOpenGLTextureBlitter *m_blitter = nullptr;
++ ShareBufferExtension *m_extension = nullptr;
++ QList<QtWaylandClient::QWaylandServerBuffer*> m_buffers;
++
++ };
++
++ int main (int argc, char **argv)
++ {
++ QGuiApplication app(argc, argv);
++
++ TestWindow window;
++ window.show();
++
++ return app.exec();
++ }
++
++ #include "main.moc"