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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 Q_GUI_EXPORT 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;
QByteArrayList requestedDevExtensions;
QHash<VkPhysicalDevice, QVulkanInfoVector<QVulkanExtension> > supportedDevExtensions;
QVector<VkFormat> requestedColorFormats;
VkSampleCountFlagBits sampleCount = VK_SAMPLE_COUNT_1_BIT;
QVulkanWindow::QueueCreateInfoModifier queueCreateInfoModifier;
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
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