| /**************************************************************************** |
| ** |
| ** Copyright (C) 2019 The Qt Company Ltd. |
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| ** |
| ** This file is part of the examples of the Qt Wayland module |
| ** |
| ** $QT_BEGIN_LICENSE:BSD$ |
| ** Commercial License Usage |
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| ** BSD License Usage |
| ** Alternatively, you may use this file under the terms of the BSD license |
| ** as follows: |
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| ****************************************************************************/ |
| |
| #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" |
| |
| 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>("com.theqtcompany.customsharingextension", 1, 0, "CustomSharingExtension"); |
| appEngine.addImageProvider("wlshared", new QWaylandSharedTextureProvider); |
| |
| appEngine.load(QUrl("qrc:///qml/main.qml")); |
| |
| return app.exec(); |
| } |
| |
| #include "main.moc" |