diff options
Diffstat (limited to 'src/plugins/platforms/windows/qwindowsvulkaninstance.cpp')
-rw-r--r-- | src/plugins/platforms/windows/qwindowsvulkaninstance.cpp | 136 |
1 files changed, 136 insertions, 0 deletions
diff --git a/src/plugins/platforms/windows/qwindowsvulkaninstance.cpp b/src/plugins/platforms/windows/qwindowsvulkaninstance.cpp new file mode 100644 index 0000000000..d81ee8ba29 --- /dev/null +++ b/src/plugins/platforms/windows/qwindowsvulkaninstance.cpp @@ -0,0 +1,136 @@ +/**************************************************************************** +** +** Copyright (C) 2017 The Qt Company Ltd. +** Contact: https://www.qt.io/licensing/ +** +** This file is part of plugins 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. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "qwindowsvulkaninstance.h" + +QT_BEGIN_NAMESPACE + +QWindowsVulkanInstance::QWindowsVulkanInstance(QVulkanInstance *instance) + : m_instance(instance), + m_getPhysDevPresSupport(nullptr), + m_createSurface(nullptr), + m_destroySurface(nullptr) +{ + if (qEnvironmentVariableIsSet("QT_VULKAN_LIB")) + m_lib.setFileName(QString::fromUtf8(qgetenv("QT_VULKAN_LIB"))); + else + m_lib.setFileName(QStringLiteral("vulkan-1")); + + if (!m_lib.load()) { + qWarning("Failed to load %s: %s", qPrintable(m_lib.fileName()), qPrintable(m_lib.errorString())); + return; + } + + init(&m_lib); +} + +void QWindowsVulkanInstance::createOrAdoptInstance() +{ + initInstance(m_instance, QByteArrayList() << QByteArrayLiteral("VK_KHR_win32_surface")); + + if (!m_vkInst) + return; + + m_getPhysDevPresSupport = reinterpret_cast<PFN_vkGetPhysicalDeviceWin32PresentationSupportKHR>( + m_vkGetInstanceProcAddr(m_vkInst, "vkGetPhysicalDeviceWin32PresentationSupportKHR")); + if (!m_getPhysDevPresSupport) + qWarning("Failed to find vkGetPhysicalDeviceWin32PresentationSupportKHR"); +} + +QWindowsVulkanInstance::~QWindowsVulkanInstance() +{ +} + +bool QWindowsVulkanInstance::supportsPresent(VkPhysicalDevice physicalDevice, + uint32_t queueFamilyIndex, + QWindow *window) +{ + if (!m_getPhysDevPresSupport || !m_getPhysDevSurfaceSupport) + return true; + + bool ok = m_getPhysDevPresSupport(physicalDevice, queueFamilyIndex); + + VkSurfaceKHR surface = QVulkanInstance::surfaceForWindow(window); + VkBool32 supported = false; + m_getPhysDevSurfaceSupport(physicalDevice, queueFamilyIndex, surface, &supported); + ok &= bool(supported); + + return ok; +} + +VkSurfaceKHR QWindowsVulkanInstance::createSurface(HWND win) +{ + VkSurfaceKHR surface = 0; + + if (!m_createSurface) { + m_createSurface = reinterpret_cast<PFN_vkCreateWin32SurfaceKHR>( + m_vkGetInstanceProcAddr(m_vkInst, "vkCreateWin32SurfaceKHR")); + } + if (!m_createSurface) { + qWarning("Failed to find vkCreateWin32SurfaceKHR"); + return surface; + } + if (!m_destroySurface) { + m_destroySurface = reinterpret_cast<PFN_vkDestroySurfaceKHR>( + m_vkGetInstanceProcAddr(m_vkInst, "vkDestroySurfaceKHR")); + } + if (!m_destroySurface) { + qWarning("Failed to find vkDestroySurfaceKHR"); + return surface; + } + + VkWin32SurfaceCreateInfoKHR surfaceInfo; + memset(&surfaceInfo, 0, sizeof(surfaceInfo)); + surfaceInfo.sType = VK_STRUCTURE_TYPE_WIN32_SURFACE_CREATE_INFO_KHR; + surfaceInfo.hinstance = GetModuleHandle(nullptr); + surfaceInfo.hwnd = win; + VkResult err = m_createSurface(m_vkInst, &surfaceInfo, nullptr, &surface); + if (err != VK_SUCCESS) + qWarning("Failed to create Vulkan surface: %d", err); + + return surface; +} + +void QWindowsVulkanInstance::destroySurface(VkSurfaceKHR surface) +{ + if (m_destroySurface && surface) + m_destroySurface(m_vkInst, surface, nullptr); +} + +QT_END_NAMESPACE |