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+/****************************************************************************
+**
+** Copyright (C) 2017 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the QtGui module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** 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.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 3 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL3 included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 3 requirements
+** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 2.0 or (at your option) the GNU General
+** Public license version 3 or any later version approved by the KDE Free
+** Qt Foundation. The licenses are as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-2.0.html and
+** https://www.gnu.org/licenses/gpl-3.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QVULKANWINDOW_P_H
+#define QVULKANWINDOW_P_H
+
+#include <QtGui/private/qtguiglobal_p.h>
+
+#if QT_CONFIG(vulkan) || defined(Q_CLANG_QDOC)
+
+#include "qvulkanwindow.h"
+#include <QtCore/QHash>
+#include <private/qwindow_p.h>
+
+//
+// W A R N I N G
+// -------------
+//
+// This file is not part of the Qt API. It exists for the convenience
+// of a number of Qt sources files. This header file may change from
+// version to version without notice, or even be removed.
+//
+// We mean it.
+//
+
+QT_BEGIN_NAMESPACE
+
+class QVulkanWindowPrivate : public QWindowPrivate
+{
+ Q_DECLARE_PUBLIC(QVulkanWindow)
+
+public:
+ ~QVulkanWindowPrivate();
+
+ void ensureStarted();
+ void init();
+ void reset();
+ bool createDefaultRenderPass();
+ void recreateSwapChain();
+ uint32_t chooseTransientImageMemType(VkImage img, uint32_t startIndex);
+ bool createTransientImage(VkFormat format, VkImageUsageFlags usage, VkImageAspectFlags aspectMask,
+ VkImage *images, VkDeviceMemory *mem, VkImageView *views, int count);
+ void releaseSwapChain();
+ void beginFrame();
+ void endFrame();
+ bool checkDeviceLost(VkResult err);
+ void addReadback();
+ void finishBlockingReadback();
+
+ enum Status {
+ StatusUninitialized,
+ StatusFail,
+ StatusFailRetry,
+ StatusDeviceReady,
+ StatusReady
+ };
+ Status status = StatusUninitialized;
+ QVulkanWindowRenderer *renderer = nullptr;
+ QVulkanInstance *inst = nullptr;
+ VkSurfaceKHR surface = VK_NULL_HANDLE;
+ int physDevIndex = 0;
+ QVector<VkPhysicalDevice> physDevs;
+ QVector<VkPhysicalDeviceProperties> physDevProps;
+ QVulkanWindow::Flags flags = 0;
+ QByteArrayList requestedDevExtensions;
+ QHash<VkPhysicalDevice, QVulkanInfoVector<QVulkanExtension> > supportedDevExtensions;
+ QVector<VkFormat> requestedColorFormats;
+ VkSampleCountFlagBits sampleCount = VK_SAMPLE_COUNT_1_BIT;
+
+ VkDevice dev = VK_NULL_HANDLE;
+ QVulkanDeviceFunctions *devFuncs;
+ uint32_t gfxQueueFamilyIdx;
+ uint32_t presQueueFamilyIdx;
+ VkQueue gfxQueue;
+ VkQueue presQueue;
+ VkCommandPool cmdPool = VK_NULL_HANDLE;
+ VkCommandPool presCmdPool = VK_NULL_HANDLE;
+ uint32_t hostVisibleMemIndex;
+ uint32_t deviceLocalMemIndex;
+ VkFormat colorFormat;
+ VkColorSpaceKHR colorSpace;
+ VkFormat dsFormat = VK_FORMAT_D24_UNORM_S8_UINT;
+
+ PFN_vkCreateSwapchainKHR vkCreateSwapchainKHR = nullptr;
+ PFN_vkDestroySwapchainKHR vkDestroySwapchainKHR;
+ PFN_vkGetSwapchainImagesKHR vkGetSwapchainImagesKHR;
+ PFN_vkAcquireNextImageKHR vkAcquireNextImageKHR;
+ PFN_vkQueuePresentKHR vkQueuePresentKHR;
+ PFN_vkGetPhysicalDeviceSurfaceCapabilitiesKHR vkGetPhysicalDeviceSurfaceCapabilitiesKHR = nullptr;
+ PFN_vkGetPhysicalDeviceSurfaceFormatsKHR vkGetPhysicalDeviceSurfaceFormatsKHR;
+
+ static const int MAX_SWAPCHAIN_BUFFER_COUNT = 3;
+ static const int MAX_FRAME_LAG = QVulkanWindow::MAX_CONCURRENT_FRAME_COUNT;
+ // QVulkanWindow only supports the always available FIFO mode. The
+ // rendering thread will get throttled to the presentation rate (vsync).
+ // This is in effect Example 5 from the VK_KHR_swapchain spec.
+ VkPresentModeKHR presentMode = VK_PRESENT_MODE_FIFO_KHR;
+ int swapChainBufferCount = 2;
+ int frameLag = 2;
+
+ QSize swapChainImageSize;
+ VkSwapchainKHR swapChain = VK_NULL_HANDLE;
+ bool swapChainSupportsReadBack = false;
+
+ struct ImageResources {
+ VkImage image = VK_NULL_HANDLE;
+ VkImageView imageView = VK_NULL_HANDLE;
+ VkCommandBuffer cmdBuf = VK_NULL_HANDLE;
+ VkFence cmdFence = VK_NULL_HANDLE;
+ bool cmdFenceWaitable = false;
+ VkFramebuffer fb = VK_NULL_HANDLE;
+ VkCommandBuffer presTransCmdBuf = VK_NULL_HANDLE;
+ VkImage msaaImage = VK_NULL_HANDLE;
+ VkImageView msaaImageView = VK_NULL_HANDLE;
+ } imageRes[MAX_SWAPCHAIN_BUFFER_COUNT];
+
+ VkDeviceMemory msaaImageMem = VK_NULL_HANDLE;
+
+ uint32_t currentImage;
+
+ struct FrameResources {
+ VkFence fence = VK_NULL_HANDLE;
+ bool fenceWaitable = false;
+ VkSemaphore imageSem = VK_NULL_HANDLE;
+ VkSemaphore drawSem = VK_NULL_HANDLE;
+ VkSemaphore presTransSem = VK_NULL_HANDLE;
+ bool imageAcquired = false;
+ bool imageSemWaitable = false;
+ } frameRes[MAX_FRAME_LAG];
+
+ uint32_t currentFrame;
+
+ VkRenderPass defaultRenderPass = VK_NULL_HANDLE;
+
+ VkDeviceMemory dsMem = VK_NULL_HANDLE;
+ VkImage dsImage = VK_NULL_HANDLE;
+ VkImageView dsView = VK_NULL_HANDLE;
+
+ bool framePending = false;
+ bool frameGrabbing = false;
+ QImage frameGrabTargetImage;
+ VkImage frameGrabImage = VK_NULL_HANDLE;
+ VkDeviceMemory frameGrabImageMem = VK_NULL_HANDLE;
+
+ QMatrix4x4 m_clipCorrect;
+};
+
+QT_END_NAMESPACE
+
+#endif // QT_CONFIG(vulkan)
+
+#endif