diff options
Diffstat (limited to 'src/gui/doc/snippets/code/src_gui_vulkan_qvulkaninstance.cpp')
| -rw-r--r-- | src/gui/doc/snippets/code/src_gui_vulkan_qvulkaninstance.cpp | 189 |
1 files changed, 87 insertions, 102 deletions
diff --git a/src/gui/doc/snippets/code/src_gui_vulkan_qvulkaninstance.cpp b/src/gui/doc/snippets/code/src_gui_vulkan_qvulkaninstance.cpp index 14ef9ed2d4..bfb7c7c3a4 100644 --- a/src/gui/doc/snippets/code/src_gui_vulkan_qvulkaninstance.cpp +++ b/src/gui/doc/snippets/code/src_gui_vulkan_qvulkaninstance.cpp @@ -1,52 +1,19 @@ -/**************************************************************************** -** -** Copyright (C) 2018 The Qt Company Ltd. -** Contact: https://www.qt.io/licensing/ -** -** This file is part of the documentation 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." -** -** $QT_END_LICENSE$ -** -****************************************************************************/ +// Copyright (C) 2018 The Qt Company Ltd. +// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause + +#include <QGuiApplication> +#include <QVulkanFunctions> +#include <QVulkanInstance> +#include <QWindow> + +namespace src_gui_vulkan_qvulkaninstance { + +struct Window { + void setVulkanInstance(QVulkanInstance *instance) { Q_UNUSED(instance); } + void show(); +}; +Window *window = nullptr; + //! [0] int main(int argc, char **argv) @@ -57,7 +24,7 @@ if (!inst.create()) return 1; - ... + // ... window->setVulkanInstance(&inst); window->show(); @@ -65,82 +32,100 @@ } //! [0] + +void wrapper0() { //! [1] QVulkanInstance inst; // Enable validation layer, if supported. Messages go to qDebug by default. - inst.setLayers(QByteArrayList() << "VK_LAYER_LUNARG_standard_validation"); + inst.setLayers({ "VK_LAYER_KHRONOS_validation" }); bool ok = inst.create(); - if (!ok) - ... // Vulkan not available - if (!inst.layers().contains("VK_LAYER_LUNARG_standard_validation")) - ... // validation layer not available + if (!ok) { + // ... Vulkan not available + } + + if (!inst.layers().contains("VK_LAYER_KHRONOS_validation")) { + // ... validation layer not available + } //! [1] +} + +void wrapper1() { //! [2] QVulkanInstance inst; - if (inst.supportedLayers().contains("VK_LAYER_LUNARG_standard_validation")) - ... - + if (inst.supportedLayers().contains("VK_LAYER_KHRONOS_validation")) { + // ... + } bool ok = inst.create(); - ... + // ... //! [2] +Q_UNUSED(ok); +} // wrapper1 +} // src_gui_vulkan_qvulkaninstance + + +namespace src_gui_vulkan_qvulkaninstance2 { + //! [3] - class VulkanWindow : public QWindow - { - public: - VulkanWindow() { - setSurfaceType(VulkanSurface); - } +class VulkanWindow : public QWindow +{ +public: + VulkanWindow() { + setSurfaceType(VulkanSurface); + } - void exposeEvent(QExposeEvent *) { - if (isExposed()) { - if (!m_initialized) { - m_initialized = true; - // initialize device, swapchain, etc. - QVulkanInstance *inst = vulkanInstance(); - QVulkanFunctions *f = inst->functions(); - uint32_t devCount = 0; - f->vkEnumeratePhysicalDevices(inst->vkInstance(), &devCount, nullptr); - ... - // build the first frame - render(); - } + void exposeEvent(QExposeEvent *) { + if (isExposed()) { + if (!m_initialized) { + m_initialized = true; + // initialize device, swapchain, etc. + QVulkanInstance *inst = vulkanInstance(); + QVulkanFunctions *f = inst->functions(); + uint32_t devCount = 0; + f->vkEnumeratePhysicalDevices(inst->vkInstance(), &devCount, nullptr); + // ... + // build the first frame + render(); } } + } - bool event(QEvent *e) { - if (e->type() == QEvent::UpdateRequest) - render(); - return QWindow::event(e); - } + bool event(QEvent *e) { + if (e->type() == QEvent::UpdateRequest) + render(); + return QWindow::event(e); + } - void render() { - ... - requestUpdate(); // render continuously - } + void render() { + // ... + requestUpdate(); // render continuously + } - private: - bool m_initialized = false; - }; +private: + bool m_initialized = false; +}; - int main(int argc, char **argv) - { - QGuiApplication app(argc, argv); +int main(int argc, char **argv) +{ + QGuiApplication app(argc, argv); - QVulkanInstance inst; - if (!inst.create()) { - qWarning("Vulkan not available"); - return 1; - } + QVulkanInstance inst; + if (!inst.create()) { + qWarning("Vulkan not available"); + return 1; + } - VulkanWindow window; - window.showMaximized(); + VulkanWindow window; + window.showMaximized(); - return app.exec(); + return app.exec(); - } +} //! [3] + + +} // src_gui_vulkan_qvulkaninstance2 |