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// Copyright (C) 2017 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 "qxcbvulkaninstance.h"
#include "qxcbwindow.h"
#include "qxcbscreen.h"
QT_BEGIN_NAMESPACE
QXcbVulkanInstance::QXcbVulkanInstance(QVulkanInstance *instance)
: m_instance(instance),
m_getPhysDevPresSupport(nullptr),
m_createSurface(nullptr)
{
loadVulkanLibrary(QStringLiteral("vulkan"), 1);
}
QXcbVulkanInstance::~QXcbVulkanInstance()
{
}
void QXcbVulkanInstance::createOrAdoptInstance()
{
initInstance(m_instance, QByteArrayList() << QByteArrayLiteral("VK_KHR_xcb_surface"));
if (!m_vkInst)
return;
m_getPhysDevPresSupport = reinterpret_cast<PFN_vkGetPhysicalDeviceXcbPresentationSupportKHR>(
m_vkGetInstanceProcAddr(m_vkInst, "vkGetPhysicalDeviceXcbPresentationSupportKHR"));
if (!m_getPhysDevPresSupport)
qWarning("Failed to find vkGetPhysicalDeviceXcbPresentationSupportKHR");
}
bool QXcbVulkanInstance::supportsPresent(VkPhysicalDevice physicalDevice,
uint32_t queueFamilyIndex,
QWindow *window)
{
if (!m_getPhysDevPresSupport || !m_getPhysDevSurfaceSupport)
return true;
QXcbWindow *w = static_cast<QXcbWindow *>(window->handle());
if (!w) {
qWarning("Attempted to call supportsPresent() without a valid platform window");
return false;
}
xcb_connection_t *connection = w->xcbScreen()->xcb_connection();
bool ok = m_getPhysDevPresSupport(physicalDevice, queueFamilyIndex, connection, w->visualId());
VkSurfaceKHR surface = QVulkanInstance::surfaceForWindow(window);
VkBool32 supported = false;
m_getPhysDevSurfaceSupport(physicalDevice, queueFamilyIndex, surface, &supported);
ok &= bool(supported);
return ok;
}
VkSurfaceKHR QXcbVulkanInstance::createSurface(QXcbWindow *window)
{
VkSurfaceKHR surface = VK_NULL_HANDLE;
if (!m_createSurface) {
m_createSurface = reinterpret_cast<PFN_vkCreateXcbSurfaceKHR>(
m_vkGetInstanceProcAddr(m_vkInst, "vkCreateXcbSurfaceKHR"));
}
if (!m_createSurface) {
qWarning("Failed to find vkCreateXcbSurfaceKHR");
return surface;
}
VkXcbSurfaceCreateInfoKHR surfaceInfo;
memset(&surfaceInfo, 0, sizeof(surfaceInfo));
surfaceInfo.sType = VK_STRUCTURE_TYPE_XCB_SURFACE_CREATE_INFO_KHR;
surfaceInfo.connection = window->xcbScreen()->xcb_connection();
surfaceInfo.window = window->xcb_window();
VkResult err = m_createSurface(m_vkInst, &surfaceInfo, nullptr, &surface);
if (err != VK_SUCCESS)
qWarning("Failed to create Vulkan surface: %d", err);
return surface;
}
void QXcbVulkanInstance::presentQueued(QWindow *window)
{
QXcbWindow *w = static_cast<QXcbWindow *>(window->handle());
if (!w) {
qWarning("Attempted to call presentQueued() without a valid platform window");
return;
}
if (w->needsSync())
w->postSyncWindowRequest();
}
QT_END_NAMESPACE
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