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Diffstat (limited to 'src/client/qwaylandvulkaninstance.cpp')
-rw-r--r-- | src/client/qwaylandvulkaninstance.cpp | 132 |
1 files changed, 132 insertions, 0 deletions
diff --git a/src/client/qwaylandvulkaninstance.cpp b/src/client/qwaylandvulkaninstance.cpp new file mode 100644 index 000000000..5edbd4757 --- /dev/null +++ b/src/client/qwaylandvulkaninstance.cpp @@ -0,0 +1,132 @@ +/**************************************************************************** +** +** Copyright (C) 2019 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 "qwaylandvulkaninstance_p.h" +#include "qwaylandwindow_p.h" +#include "qwaylandscreen_p.h" +#include "qwaylanddisplay_p.h" + +QT_BEGIN_NAMESPACE + +namespace QtWaylandClient { + +QWaylandVulkanInstance::QWaylandVulkanInstance(QVulkanInstance *instance) + : m_instance(instance) +{ + loadVulkanLibrary(QStringLiteral("vulkan")); +} + +QWaylandVulkanInstance::~QWaylandVulkanInstance() = default; + +void QWaylandVulkanInstance::createOrAdoptInstance() +{ + QByteArrayList extraExtensions; + extraExtensions << QByteArrayLiteral("VK_KHR_wayland_surface"); + initInstance(m_instance, extraExtensions); + + if (!m_vkInst) + return; + + m_getPhysDevPresSupport = reinterpret_cast<PFN_vkGetPhysicalDeviceWaylandPresentationSupportKHR>( + m_vkGetInstanceProcAddr(m_vkInst, "vkGetPhysicalDeviceWaylandPresentationSupportKHR")); + if (!m_getPhysDevPresSupport) + qWarning() << "Failed to find vkGetPhysicalDeviceWaylandPresentationSupportKHR"; +} + +bool QWaylandVulkanInstance::supportsPresent(VkPhysicalDevice physicalDevice, + uint32_t queueFamilyIndex, + QWindow *window) +{ + if (!m_getPhysDevPresSupport || !m_getPhysDevSurfaceSupport) + return true; + + auto *w = static_cast<QWaylandWindow *>(window->handle()); + if (!w) { + qWarning() << "Attempted to call supportsPresent() without a valid platform window"; + return false; + } + wl_display *display = w->display()->wl_display(); + bool ok = m_getPhysDevPresSupport(physicalDevice, queueFamilyIndex, display); + + VkSurfaceKHR surface = QVulkanInstance::surfaceForWindow(window); + VkBool32 supported = false; + m_getPhysDevSurfaceSupport(physicalDevice, queueFamilyIndex, surface, &supported); + ok &= bool(supported); + + return ok; +} + +VkSurfaceKHR QWaylandVulkanInstance::createSurface(QWaylandWindow *window) +{ + VkSurfaceKHR surface = VK_NULL_HANDLE; + + if (!m_createSurface) { + m_createSurface = reinterpret_cast<PFN_vkCreateWaylandSurfaceKHR>( + m_vkGetInstanceProcAddr(m_vkInst, "vkCreateWaylandSurfaceKHR")); + } + if (!m_createSurface) { + qWarning() << "Failed to find vkCreateWaylandSurfaceKHR"; + return surface; + } + + VkWaylandSurfaceCreateInfoKHR surfaceInfo; + memset(&surfaceInfo, 0, sizeof(surfaceInfo)); + surfaceInfo.sType = VK_STRUCTURE_TYPE_WAYLAND_SURFACE_CREATE_INFO_KHR; + surfaceInfo.display = window->display()->wl_display(); + surfaceInfo.surface = window->wlSurface(); + VkResult err = m_createSurface(m_vkInst, &surfaceInfo, nullptr, &surface); + if (err != VK_SUCCESS) + qWarning("Failed to create Vulkan surface: %d", err); + + return surface; +} + +void QWaylandVulkanInstance::presentAboutToBeQueued(QWindow *window) +{ + auto *w = static_cast<QWaylandWindow *>(window->handle()); + if (!w) { + qWarning() << "Attempted to call presentAboutToBeQueued() without a valid platform window"; + return; + } + w->handleUpdate(); +} + +} // namespace QtWaylandClient + +QT_END_NAMESPACE |