diff options
Diffstat (limited to 'src/client/qwaylandvulkaninstance.cpp')
-rw-r--r-- | src/client/qwaylandvulkaninstance.cpp | 126 |
1 files changed, 126 insertions, 0 deletions
diff --git a/src/client/qwaylandvulkaninstance.cpp b/src/client/qwaylandvulkaninstance.cpp new file mode 100644 index 000000000..be55130a4 --- /dev/null +++ b/src/client/qwaylandvulkaninstance.cpp @@ -0,0 +1,126 @@ +// Copyright (C) 2019 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 "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; + } + + bool ok; + int frameCallbackTimeout = qEnvironmentVariableIntValue("QT_WAYLAND_FRAME_CALLBACK_TIMEOUT", &ok); + + if (ok) + mFrameCallbackTimeout = frameCallbackTimeout; + + if (w->format().swapInterval() > 0) + w->waitForFrameSync(mFrameCallbackTimeout); + + w->handleUpdate(); +} + +void QWaylandVulkanInstance::beginFrame(QWindow *window) +{ + auto *w = static_cast<QWaylandWindow *>(window->handle()); + if (!w) { + qWarning() << "Attempted to call beginFrame() without a valid platform window"; + return; + } + w->beginFrame(); +} + +void QWaylandVulkanInstance::endFrame(QWindow *window) +{ + auto *w = static_cast<QWaylandWindow *>(window->handle()); + if (!w) { + qWarning() << "Attempted to call endFrame() without a valid platform window"; + return; + } + w->endFrame(); +} + +} // namespace QtWaylandClient + +QT_END_NAMESPACE |