diff options
Diffstat (limited to 'src/gui/doc/snippets/code/src_gui_vulkan_qvulkanwindow.cpp')
-rw-r--r-- | src/gui/doc/snippets/code/src_gui_vulkan_qvulkanwindow.cpp | 187 |
1 files changed, 80 insertions, 107 deletions
diff --git a/src/gui/doc/snippets/code/src_gui_vulkan_qvulkanwindow.cpp b/src/gui/doc/snippets/code/src_gui_vulkan_qvulkanwindow.cpp index 81d51233a3..7f9abb638e 100644 --- a/src/gui/doc/snippets/code/src_gui_vulkan_qvulkanwindow.cpp +++ b/src/gui/doc/snippets/code/src_gui_vulkan_qvulkanwindow.cpp @@ -1,132 +1,105 @@ -/**************************************************************************** -** -** 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 <QVulkanDeviceFunctions> +#include <QVulkanWindow> +namespace src_gui_vulkan_qvulkanwindow { +VkCommandBuffer commandBuffer; +const VkRenderPassBeginInfo *renderPassBegin = nullptr; +VkSubpassContents contents; //! [0] - class VulkanRenderer : public QVulkanWindowRenderer - { - public: - VulkanRenderer(QVulkanWindow *w) : m_window(w) { } - - void initResources() override - { - m_devFuncs = m_window->vulkanInstance()->deviceFunctions(m_window->device()); - ... - } - void initSwapChainResources() override { ... } - void releaseSwapChainResources() override { ... } - void releaseResources() override { ... } - - void startNextFrame() override - { - VkCommandBuffer cmdBuf = m_window->currentCommandBuffer(); - ... - m_devFuncs->vkCmdBeginRenderPass(...); - ... - m_window->frameReady(); - } - - private: - QVulkanWindow *m_window; - QVulkanDeviceFunctions *m_devFuncs; - }; - - class VulkanWindow : public QVulkanWindow - { - public: - QVulkanWindowRenderer *createRenderer() override { - return new VulkanRenderer(this); - } - }; - - int main(int argc, char *argv[]) - { - QGuiApplication app(argc, argv); - - QVulkanInstance inst; - // enable the standard validation layers, when available - inst.setLayers(QByteArrayList() << "VK_LAYER_LUNARG_standard_validation"); - if (!inst.create()) - qFatal("Failed to create Vulkan instance: %d", inst.errorCode()); - - VulkanWindow w; - w.setVulkanInstance(&inst); - w.showMaximized(); - - return app.exec(); - } +class VulkanRenderer : public QVulkanWindowRenderer +{ +public: + VulkanRenderer(QVulkanWindow *w) : m_window(w), m_devFuncs(nullptr) { } + + void initResources() override + { + m_devFuncs = m_window->vulkanInstance()->deviceFunctions(m_window->device()); + // .. + } + void initSwapChainResources() override { /* ... */ } + void releaseSwapChainResources() override { /* ... */ } + void releaseResources() override { /* ... */ } + + void startNextFrame() override + { + VkCommandBuffer cmdBuf = m_window->currentCommandBuffer(); + // ... + m_devFuncs->vkCmdBeginRenderPass(commandBuffer, renderPassBegin, contents); + // ... + m_window->frameReady(); + } + +private: + QVulkanWindow *m_window; + QVulkanDeviceFunctions *m_devFuncs; +}; + +class VulkanWindow : public QVulkanWindow +{ +public: + QVulkanWindowRenderer *createRenderer() override { + return new VulkanRenderer(this); + } +}; + +int main(int argc, char *argv[]) +{ + QGuiApplication app(argc, argv); + + QVulkanInstance inst; + // enable the standard validation layers, when available + inst.setLayers({ "VK_LAYER_KHRONOS_validation" }); + if (!inst.create()) + qFatal("Failed to create Vulkan instance: %d", inst.errorCode()); + + VulkanWindow w; + w.setVulkanInstance(&inst); + w.showMaximized(); + + return app.exec(); +} //! [0] //! [1] class Renderer { - ... + void startNextFrame(); + // ... + VkDescriptorBufferInfo m_uniformBufInfo[QVulkanWindow::MAX_CONCURRENT_FRAME_COUNT]; + QVulkanWindow *m_window = nullptr; }; void Renderer::startNextFrame() { VkDescriptorBufferInfo &uniformBufInfo(m_uniformBufInfo[m_window->currentFrame()]); - ... + // ... } //! [1] +} // src_gui_vulkan_qvulkanwindow + + +namespace src_gui_vulkan_qvulkanwindow2 { + //! [2] class Renderer { - ... + void startNextFrame(); + // ... + VkDescriptorBufferInfo m_uniformBufInfo[QVulkanWindow::MAX_CONCURRENT_FRAME_COUNT]; + QVulkanWindow *m_window = nullptr; }; void Renderer::startNextFrame() { const int count = m_window->concurrentFrameCount(); - for (int i = 0; i < count; ++i) - m_uniformBufInfo[i] = ... - ... + // for (int i = 0; i < count; ++i) + // m_uniformBufInfo[i] = ... + // ... } //! [2] + +} // src_gui_vulkan_qvulkanwindow2 |