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Diffstat (limited to 'examples/wayland/texture-sharing/custom-compositor/main.cpp')
| -rw-r--r-- | examples/wayland/texture-sharing/custom-compositor/main.cpp | 143 |
1 files changed, 143 insertions, 0 deletions
diff --git a/examples/wayland/texture-sharing/custom-compositor/main.cpp b/examples/wayland/texture-sharing/custom-compositor/main.cpp new file mode 100644 index 000000000..a39c8c381 --- /dev/null +++ b/examples/wayland/texture-sharing/custom-compositor/main.cpp @@ -0,0 +1,143 @@ +/**************************************************************************** +** +** Copyright (C) 2019 The Qt Company Ltd. +** Contact: http://www.qt-project.org/legal +** +** This file is part of the examples of the Qt Wayland module +** +** $QT_BEGIN_LICENSE:BSD$ +** Commercial License Usage +** Licensees holding valid commercial Qt licenses may use this file in +** accordance with the commercial license agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and The Qt Company. For licensing terms +** and conditions see https://www.qt.io/terms-conditions. For further +** information use the contact form at https://www.qt.io/contact-us. +** +** BSD License Usage +** Alternatively, you may use this file under the terms of the BSD license +** as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of The Qt Company Ltd nor the names of its +** contributors may be used to endorse or promote products derived +** from this software without specific prior written permission. +** +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#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" |