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// 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();
}
} // namespace QtWaylandClient
QT_END_NAMESPACE
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