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++ // Copyright (C) 2019 The Qt Company Ltd.
++ // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
++
++ #include <QtCore/QUrl>
++ #include <QtCore/QDebug>
++ #include <QtGui/QGuiApplication>
++ #include <QtQml/QQmlApplicationEngine>
++
++ #include <QtQml/qqml.h>
++ #include <QtQml/QQmlEngine>
++
++ #include <QtGui/QPainter>
++ #include <QtGui/QImage>
++
++ #include <QtCore/QDateTime>
++
++ #include "QtWaylandCompositor/private/qwltexturesharingextension_p.h"
++
++ #ifndef GL_RGBA8
++ #define GL_RGBA8 0x8058
++ #endif
++
++ class CustomSharingExtension : public QWaylandTextureSharingExtension
++ {
++ Q_OBJECT
++ public:
++ CustomSharingExtension() {qDebug("Instantiating custom texture sharing extension.");}
++ protected:
++ bool customPixelData(const QString &key, QByteArray *data, QSize *size, uint *glInternalFormat) override
++ {
++ qDebug() << "CustomSharingExtension looking for local texture data for" << key;
++ if (key.startsWith("unreasonably large ")) {
++ int w = 10000;
++ int h = 10000;
++ int numBytes = w * h * 4;
++ *data = QByteArray(numBytes, 0);
++ quint32 *pixels = reinterpret_cast<quint32*>(data->data());
++ for (int i = 0; i < w*h; ++i)
++ pixels[i] = 0xff7f1fff;
++ *glInternalFormat = GL_RGBA8;
++ *size = QSize(w,h);
++ return true;
++ }
++
++ QImage img;
++
++ if (key == QLatin1String("test pattern 1")) {
++ img = QImage(128,128,QImage::Format_ARGB32_Premultiplied);
++ img.fill(QColor(0x55,0x0,0x55,0x01));
++ {
++ QPainter p(&img);
++ QPen pen = p.pen();
++ pen.setWidthF(3);
++ pen.setColor(Qt::red);
++ p.setPen(pen);
++ p.drawLine(0,0,128,128);
++ pen.setColor(Qt::green);
++ p.setPen(pen);
++ p.drawLine(128,0,0,128);
++ pen.setColor(Qt::blue);
++ p.setPen(pen);
++ p.drawLine(32,16,96,16);
++ pen.setColor(Qt::black);
++ p.setPen(pen);
++ p.translate(64, 64);
++ p.rotate(45);
++ p.drawText(QRect(-48, -32, 96, 64),
++ QDateTime::currentDateTime().toString(),
++ QTextOption(Qt::AlignHCenter));
++ }
++ }
++
++ if (!img.isNull()) {
++ img = img.convertToFormat(QImage::Format_RGBA8888);
++ *data = QByteArray(reinterpret_cast<const char*>(img.constBits()), img.sizeInBytes());
++ *size = img.size();
++ *glInternalFormat = GL_RGBA8;
++ return true;
++ }
++ return false;
++ }
++ };
++
++ Q_COMPOSITOR_DECLARE_QUICK_EXTENSION_CLASS(CustomSharingExtension);
++
++ int main(int argc, char *argv[])
++ {
++ QCoreApplication::setAttribute(Qt::AA_ShareOpenGLContexts, true);
++ QGuiApplication app(argc, argv);
++ QQmlApplicationEngine appEngine;
++
++ qmlRegisterType<CustomSharingExtensionQuickExtension>("io.qt.tests.customsharingextension", 1, 0, "CustomSharingExtension");
++ appEngine.addImageProvider("wlshared", new QWaylandSharedTextureProvider);
++
++ appEngine.load(QUrl("qrc:///qml/main.qml"));
++
++ return app.exec();
++ }
++
++ #include "main.moc"