5 files changed, 419 insertions, 0 deletions
diff --git a/examples/vulkan/hellovulkanwidget/hellovulkanwidget.cpp b/examples/vulkan/hellovulkanwidget/hellovulkanwidget.cpp
new file mode 100644
index 0000000000..81daa9bb96
--- /dev/null
+++ b/examples/vulkan/hellovulkanwidget/hellovulkanwidget.cpp
@@ -0,0 +1,185 @@
+/****************************************************************************
+**
+** Copyright (C) 2017 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** 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 "hellovulkanwidget.h"
+#include <QVulkanFunctions>
+#include <QApplication>
+#include <QVBoxLayout>
+#include <QPlainTextEdit>
+#include <QPushButton>
+#include <QLCDNumber>
+#include <QFileDialog>
+#include <QMessageBox>
+#include <QTabWidget>
+
+MainWindow::MainWindow(VulkanWindow *w, QPlainTextEdit *logWidget)
+    : m_window(w)
+{
+    QWidget *wrapper = QWidget::createWindowContainer(w);
+
+    m_info = new QPlainTextEdit;
+    m_info->setReadOnly(true);
+
+    m_number = new QLCDNumber(3);
+    m_number->setSegmentStyle(QLCDNumber::Filled);
+
+    QPushButton *grabButton = new QPushButton(tr("&Grab"));
+    grabButton->setFocusPolicy(Qt::NoFocus);
+
+    connect(grabButton, &QPushButton::clicked, this, &MainWindow::onGrabRequested);
+
+    QPushButton *quitButton = new QPushButton(tr("&Quit"));
+    quitButton->setFocusPolicy(Qt::NoFocus);
+
+    connect(quitButton, &QPushButton::clicked, qApp, &QCoreApplication::quit);
+
+    QVBoxLayout *layout = new QVBoxLayout;
+    m_infoTab = new QTabWidget(this);
+    m_infoTab->addTab(m_info, tr("Vulkan Info"));
+    m_infoTab->addTab(logWidget, tr("Debug Log"));
+    layout->addWidget(m_infoTab, 2);
+    layout->addWidget(m_number, 1);
+    layout->addWidget(wrapper, 5);
+    layout->addWidget(grabButton, 1);
+    layout->addWidget(quitButton, 1);
+    setLayout(layout);
+}
+
+void MainWindow::onVulkanInfoReceived(const QString &text)
+{
+    m_info->setPlainText(text);
+}
+
+void MainWindow::onFrameQueued(int colorValue)
+{
+    m_number->display(colorValue);
+}
+
+void MainWindow::onGrabRequested()
+{
+    if (!m_window->supportsGrab()) {
+        QMessageBox::warning(this, tr("Cannot grab"), tr("This swapchain does not support readbacks."));
+        return;
+    }
+
+    QImage img = m_window->grab();
+
+    // Our startNextFrame() implementation is synchronous so img is ready to be
+    // used right here.
+
+    QFileDialog fd(this);
+    fd.setAcceptMode(QFileDialog::AcceptSave);
+    fd.setDefaultSuffix("png");
+    fd.selectFile("test.png");
+    if (fd.exec() == QDialog::Accepted)
+        img.save(fd.selectedFiles().first());
+}
+
+QVulkanWindowRenderer *VulkanWindow::createRenderer()
+{
+    return new VulkanRenderer(this);
+}
+
+VulkanRenderer::VulkanRenderer(VulkanWindow *w)
+    : TriangleRenderer(w)
+{
+}
+
+void VulkanRenderer::initResources()
+{
+    TriangleRenderer::initResources();
+
+    QVulkanInstance *inst = m_window->vulkanInstance();
+    m_devFuncs = inst->deviceFunctions(m_window->device());
+
+    QString info;
+    info += QString().sprintf("Number of physical devices: %d\n", m_window->availablePhysicalDevices().count());
+
+    QVulkanFunctions *f = inst->functions();
+    VkPhysicalDeviceProperties props;
+    f->vkGetPhysicalDeviceProperties(m_window->physicalDevice(), &props);
+    info += QString().sprintf("Active physical device name: '%s' version %d.%d.%d\nAPI version %d.%d.%d\n",
+                              props.deviceName,
+                              VK_VERSION_MAJOR(props.driverVersion), VK_VERSION_MINOR(props.driverVersion),
+                              VK_VERSION_PATCH(props.driverVersion),
+                              VK_VERSION_MAJOR(props.apiVersion), VK_VERSION_MINOR(props.apiVersion),
+                              VK_VERSION_PATCH(props.apiVersion));
+
+    info += QStringLiteral("Supported instance layers:\n");
+    for (const QVulkanLayer &layer : inst->supportedLayers())
+        info += QString().sprintf("    %s v%u\n", layer.name.constData(), layer.version);
+    info += QStringLiteral("Enabled instance layers:\n");
+    for (const QByteArray &layer : inst->layers())
+        info += QString().sprintf("    %s\n", layer.constData());
+
+    info += QStringLiteral("Supported instance extensions:\n");
+    for (const QVulkanExtension &ext : inst->supportedExtensions())
+        info += QString().sprintf("    %s v%u\n", ext.name.constData(), ext.version);
+    info += QStringLiteral("Enabled instance extensions:\n");
+    for (const QByteArray &ext : inst->extensions())
+        info += QString().sprintf("    %s\n", ext.constData());
+
+    info += QString().sprintf("Color format: %u\nDepth-stencil format: %u\n",
+                              m_window->colorFormat(), m_window->depthStencilFormat());
+
+    info += QStringLiteral("Supported sample counts:");
+    const QVector<int> sampleCounts = m_window->supportedSampleCounts();
+    for (int count : sampleCounts)
+        info += QLatin1Char(' ') + QString::number(count);
+    info += QLatin1Char('\n');
+
+    emit static_cast<VulkanWindow *>(m_window)->vulkanInfoReceived(info);
+}
+
+void VulkanRenderer::startNextFrame()
+{
+    TriangleRenderer::startNextFrame();
+    emit static_cast<VulkanWindow *>(m_window)->frameQueued(int(m_rotation) % 360);
+}
diff --git a/examples/vulkan/hellovulkanwidget/hellovulkanwidget.h b/examples/vulkan/hellovulkanwidget/hellovulkanwidget.h
new file mode 100644
index 0000000000..e70d331ae8
--- /dev/null
+++ b/examples/vulkan/hellovulkanwidget/hellovulkanwidget.h
@@ -0,0 +1,100 @@
+/****************************************************************************
+**
+** Copyright (C) 2017 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** 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 "../shared/trianglerenderer.h"
+#include <QWidget>
+
+class VulkanWindow;
+
+QT_BEGIN_NAMESPACE
+class QTabWidget;
+class QPlainTextEdit;
+class QLCDNumber;
+QT_END_NAMESPACE
+
+class MainWindow : public QWidget
+{
+    Q_OBJECT
+
+public:
+    explicit MainWindow(VulkanWindow *w, QPlainTextEdit *logWidget);
+
+public slots:
+    void onVulkanInfoReceived(const QString &text);
+    void onFrameQueued(int colorValue);
+    void onGrabRequested();
+
+private:
+    VulkanWindow *m_window;
+    QTabWidget *m_infoTab;
+    QPlainTextEdit *m_info;
+    QLCDNumber *m_number;
+};
+
+class VulkanRenderer : public TriangleRenderer
+{
+public:
+    VulkanRenderer(VulkanWindow *w);
+
+    void initResources() override;
+    void startNextFrame() override;
+};
+
+class VulkanWindow : public QVulkanWindow
+{
+    Q_OBJECT
+
+public:
+    QVulkanWindowRenderer *createRenderer() override;
+
+signals:
+    void vulkanInfoReceived(const QString &text);
+    void frameQueued(int colorValue);
+};
diff --git a/examples/vulkan/hellovulkanwidget/hellovulkanwidget.pro b/examples/vulkan/hellovulkanwidget/hellovulkanwidget.pro
new file mode 100644
index 0000000000..7b87d7f210
--- /dev/null
+++ b/examples/vulkan/hellovulkanwidget/hellovulkanwidget.pro
@@ -0,0 +1,16 @@
+QT += widgets
+
+HEADERS += \
+    hellovulkanwidget.h \
+    ../shared/trianglerenderer.h
+
+SOURCES += \
+    hellovulkanwidget.cpp \
+    main.cpp \
+    ../shared/trianglerenderer.cpp
+
+RESOURCES += hellovulkanwidget.qrc
+
+# install
+target.path = $$[QT_INSTALL_EXAMPLES]/vulkan/hellovulkanwidget
+INSTALLS += target
diff --git a/examples/vulkan/hellovulkanwidget/hellovulkanwidget.qrc b/examples/vulkan/hellovulkanwidget/hellovulkanwidget.qrc
new file mode 100644
index 0000000000..489fc7295a
--- /dev/null
+++ b/examples/vulkan/hellovulkanwidget/hellovulkanwidget.qrc
@@ -0,0 +1,6 @@
+<!DOCTYPE RCC><RCC version="1.0">
+<qresource>
+    <file alias="color_vert.spv">../shared/color_vert.spv</file>
+    <file alias="color_frag.spv">../shared/color_frag.spv</file>
+</qresource>
+</RCC>
diff --git a/examples/vulkan/hellovulkanwidget/main.cpp b/examples/vulkan/hellovulkanwidget/main.cpp
new file mode 100644
index 0000000000..5ddaf90224
--- /dev/null
+++ b/examples/vulkan/hellovulkanwidget/main.cpp
@@ -0,0 +1,112 @@
+/****************************************************************************
+**
+** Copyright (C) 2017 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** 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 <QApplication>
+#include <QPlainTextEdit>
+#include <QVulkanInstance>
+#include <QLibraryInfo>
+#include <QLoggingCategory>
+#include <QPointer>
+#include "hellovulkanwidget.h"
+
+Q_LOGGING_CATEGORY(lcVk, "qt.vulkan")
+
+static QPointer<QPlainTextEdit> messageLogWidget;
+static QtMessageHandler oldMessageHandler = nullptr;
+
+static void messageHandler(QtMsgType msgType, const QMessageLogContext &logContext, const QString &text)
+{
+    if (!messageLogWidget.isNull())
+        messageLogWidget->appendPlainText(text);
+    if (oldMessageHandler)
+        oldMessageHandler(msgType, logContext, text);
+}
+
+int main(int argc, char *argv[])
+{
+    QApplication app(argc, argv);
+
+    messageLogWidget = new QPlainTextEdit(QLatin1String(QLibraryInfo::build()) + QLatin1Char('\n'));
+    messageLogWidget->setReadOnly(true);
+
+    oldMessageHandler = qInstallMessageHandler(messageHandler);
+
+    QLoggingCategory::setFilterRules(QStringLiteral("qt.vulkan=true"));
+
+    QVulkanInstance inst;
+
+#ifndef Q_OS_ANDROID
+    inst.setLayers(QByteArrayList() << "VK_LAYER_LUNARG_standard_validation");
+#else
+    inst.setLayers(QByteArrayList()
+                   << "VK_LAYER_GOOGLE_threading"
+                   << "VK_LAYER_LUNARG_parameter_validation"
+                   << "VK_LAYER_LUNARG_object_tracker"
+                   << "VK_LAYER_LUNARG_core_validation"
+                   << "VK_LAYER_LUNARG_image"
+                   << "VK_LAYER_LUNARG_swapchain"
+                   << "VK_LAYER_GOOGLE_unique_objects");
+#endif
+
+    if (!inst.create())
+        qFatal("Failed to create Vulkan instance: %d", inst.errorCode());
+
+    VulkanWindow *vulkanWindow = new VulkanWindow;
+    vulkanWindow->setVulkanInstance(&inst);
+
+    MainWindow mainWindow(vulkanWindow, messageLogWidget.data());
+    QObject::connect(vulkanWindow, &VulkanWindow::vulkanInfoReceived, &mainWindow, &MainWindow::onVulkanInfoReceived);
+    QObject::connect(vulkanWindow, &VulkanWindow::frameQueued, &mainWindow, &MainWindow::onFrameQueued);
+
+    mainWindow.resize(1024, 768);
+    mainWindow.show();
+
+    return app.exec();
+}