diff options
Diffstat (limited to 'examples/vulkan/hellovulkanwidget/hellovulkanwidget.cpp')
| -rw-r--r-- | examples/vulkan/hellovulkanwidget/hellovulkanwidget.cpp | 185 |
1 files changed, 185 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); +} |