a3e5de6c0d
Inspired by the xcb version. hellovulkantriangle runs smootly, but freezes in some multi-monitor setups. [ChangeLog][QPA plugin] Added Vulkan support. Fixes: QTBUG-78000 Change-Id: I8711b5b47e4b71cde78295aab9acb3f5945b141b Reviewed-by: Laszlo Agocs <laszlo.agocs@qt.io>
133 lines
4.9 KiB
C++
133 lines
4.9 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2019 The Qt Company Ltd.
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** Contact: https://www.qt.io/licensing/
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**
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** This file is part of plugins of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and The Qt Company. For licensing terms
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** and conditions see https://www.qt.io/terms-conditions. For further
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** information use the contact form at https://www.qt.io/contact-us.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 3 as published by the Free Software
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** Foundation and appearing in the file LICENSE.LGPL3 included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU Lesser General Public License version 3 requirements
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** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 2.0 or (at your option) the GNU General
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** Public license version 3 or any later version approved by the KDE Free
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** Qt Foundation. The licenses are as published by the Free Software
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** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
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** included in the packaging of this file. Please review the following
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** information to ensure the GNU General Public License requirements will
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** be met: https://www.gnu.org/licenses/gpl-2.0.html and
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** https://www.gnu.org/licenses/gpl-3.0.html.
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include "qwaylandvulkaninstance_p.h"
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#include "qwaylandwindow_p.h"
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#include "qwaylandscreen_p.h"
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#include "qwaylanddisplay_p.h"
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QT_BEGIN_NAMESPACE
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namespace QtWaylandClient {
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QWaylandVulkanInstance::QWaylandVulkanInstance(QVulkanInstance *instance)
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: m_instance(instance)
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{
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loadVulkanLibrary(QStringLiteral("vulkan"));
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}
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QWaylandVulkanInstance::~QWaylandVulkanInstance() = default;
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void QWaylandVulkanInstance::createOrAdoptInstance()
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{
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QByteArrayList extraExtensions;
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extraExtensions << QByteArrayLiteral("VK_KHR_wayland_surface");
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initInstance(m_instance, extraExtensions);
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if (!m_vkInst)
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return;
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m_getPhysDevPresSupport = reinterpret_cast<PFN_vkGetPhysicalDeviceWaylandPresentationSupportKHR>(
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m_vkGetInstanceProcAddr(m_vkInst, "vkGetPhysicalDeviceWaylandPresentationSupportKHR"));
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if (!m_getPhysDevPresSupport)
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qWarning() << "Failed to find vkGetPhysicalDeviceWaylandPresentationSupportKHR";
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}
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bool QWaylandVulkanInstance::supportsPresent(VkPhysicalDevice physicalDevice,
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uint32_t queueFamilyIndex,
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QWindow *window)
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{
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if (!m_getPhysDevPresSupport || !m_getPhysDevSurfaceSupport)
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return true;
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auto *w = static_cast<QWaylandWindow *>(window->handle());
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if (!w) {
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qWarning() << "Attempted to call supportsPresent() without a valid platform window";
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return false;
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}
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wl_display *display = w->display()->wl_display();
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bool ok = m_getPhysDevPresSupport(physicalDevice, queueFamilyIndex, display);
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VkSurfaceKHR surface = QVulkanInstance::surfaceForWindow(window);
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VkBool32 supported = false;
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m_getPhysDevSurfaceSupport(physicalDevice, queueFamilyIndex, surface, &supported);
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ok &= bool(supported);
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return ok;
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}
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VkSurfaceKHR QWaylandVulkanInstance::createSurface(QWaylandWindow *window)
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{
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VkSurfaceKHR surface = VK_NULL_HANDLE;
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if (!m_createSurface) {
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m_createSurface = reinterpret_cast<PFN_vkCreateWaylandSurfaceKHR>(
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m_vkGetInstanceProcAddr(m_vkInst, "vkCreateWaylandSurfaceKHR"));
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}
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if (!m_createSurface) {
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qWarning() << "Failed to find vkCreateWaylandSurfaceKHR";
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return surface;
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}
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VkWaylandSurfaceCreateInfoKHR surfaceInfo;
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memset(&surfaceInfo, 0, sizeof(surfaceInfo));
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surfaceInfo.sType = VK_STRUCTURE_TYPE_WAYLAND_SURFACE_CREATE_INFO_KHR;
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surfaceInfo.display = window->display()->wl_display();
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surfaceInfo.surface = window->wlSurface();
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VkResult err = m_createSurface(m_vkInst, &surfaceInfo, nullptr, &surface);
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if (err != VK_SUCCESS)
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qWarning("Failed to create Vulkan surface: %d", err);
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return surface;
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}
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void QWaylandVulkanInstance::presentAboutToBeQueued(QWindow *window)
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{
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auto *w = static_cast<QWaylandWindow *>(window->handle());
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if (!w) {
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qWarning() << "Attempted to call presentAboutToBeQueued() without a valid platform window";
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return;
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}
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w->handleUpdate();
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}
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} // namespace QtWaylandClient
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QT_END_NAMESPACE
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