1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859606162636465666768697071727374757677787980818283848586878889909192939495 | // Copyright (C) 2017 The Qt Company Ltd.// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only#include"qxcbvulkaninstance.h"#include"qxcbwindow.h"#include"qxcbscreen.h" QT_BEGIN_NAMESPACE QXcbVulkanInstance::QXcbVulkanInstance(QVulkanInstance *instance):m_instance(instance),m_getPhysDevPresSupport(nullptr),m_createSurface(nullptr){loadVulkanLibrary(QStringLiteral("vulkan"),1);}QXcbVulkanInstance::~QXcbVulkanInstance(){}voidQXcbVulkanInstance::createOrAdoptInstance(){initInstance(m_instance,QByteArrayList() <<QByteArrayLiteral("VK_KHR_xcb_surface"));if(!m_vkInst)return; m_getPhysDevPresSupport =reinterpret_cast<PFN_vkGetPhysicalDeviceXcbPresentationSupportKHR>(m_vkGetInstanceProcAddr(m_vkInst,"vkGetPhysicalDeviceXcbPresentationSupportKHR"));if(!m_getPhysDevPresSupport)qWarning("Failed to find vkGetPhysicalDeviceXcbPresentationSupportKHR");}boolQXcbVulkanInstance::supportsPresent(VkPhysicalDevice physicalDevice,uint32_t queueFamilyIndex, QWindow *window){if(!m_getPhysDevPresSupport || !m_getPhysDevSurfaceSupport)return true; QXcbWindow *w =static_cast<QXcbWindow *>(window->handle());if(!w) {qWarning("Attempted to call supportsPresent() without a valid platform window");return false;} xcb_connection_t *connection = w->xcbScreen()->xcb_connection();bool ok =m_getPhysDevPresSupport(physicalDevice, queueFamilyIndex, connection, w->visualId()); VkSurfaceKHR surface =QVulkanInstance::surfaceForWindow(window); VkBool32 supported =false;m_getPhysDevSurfaceSupport(physicalDevice, queueFamilyIndex, surface, &supported); ok &=bool(supported);return ok;} VkSurfaceKHR QXcbVulkanInstance::createSurface(QXcbWindow *window){ VkSurfaceKHR surface = VK_NULL_HANDLE;if(!m_createSurface) { m_createSurface =reinterpret_cast<PFN_vkCreateXcbSurfaceKHR>(m_vkGetInstanceProcAddr(m_vkInst,"vkCreateXcbSurfaceKHR"));}if(!m_createSurface) {qWarning("Failed to find vkCreateXcbSurfaceKHR");return surface;} VkXcbSurfaceCreateInfoKHR surfaceInfo;memset(&surfaceInfo,0,sizeof(surfaceInfo)); surfaceInfo.sType = VK_STRUCTURE_TYPE_XCB_SURFACE_CREATE_INFO_KHR; surfaceInfo.connection = window->xcbScreen()->xcb_connection(); surfaceInfo.window = window->xcb_window(); VkResult err =m_createSurface(m_vkInst, &surfaceInfo,nullptr, &surface);if(err != VK_SUCCESS)qWarning("Failed to create Vulkan surface: %d", err);return surface;}voidQXcbVulkanInstance::presentQueued(QWindow *window){ QXcbWindow *w =static_cast<QXcbWindow *>(window->handle());if(!w) {qWarning("Attempted to call presentQueued() without a valid platform window");return;}if(w->needsSync()) w->postSyncWindowRequest();} QT_END_NAMESPACE
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