qqnxvulkanwindow.cpp

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// Copyright (C) 2026 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
// Qt-Security score:significant reason:default
 
#include "qqnxglobal.h"
 
#include "qqnxvulkanwindow.h"
#include "qqnxintegration.h"
 
#include <QtGui/QVulkanInstance>
 
QT_BEGIN_NAMESPACE
 
QQnxVulkanWindow::QQnxVulkanWindow(QWindow *window, screen_context_t context, bool needRootWindow)
    : QQnxWindow(window, context, needRootWindow),
      m_surface(VK_NULL_HANDLE)
{
    // Set Vulkan usage on the screen window before initializing.
    // This must be done before any swapchain/buffer creation.
    int usage = SCREEN_USAGE_VULKAN;
 
    Q_SCREEN_CHECKERROR(screen_set_window_property_iv(nativeHandle(), SCREEN_PROPERTY_USAGE, &usage),
                        "Failed to set vulkan usage");
 
    initWindow();
 
    qCDebug(lcQpaQnxVulkan, "Created Vulkan window %p", nativeHandle());
}
 
QQnxVulkanWindow::~QQnxVulkanWindow()
{
    if (m_surface != VK_NULL_HANDLE) {
        QVulkanInstance *inst = window()->vulkanInstance();
        if (inst)
            static_cast<QQnxVulkanInstance *>(inst->handle())->destroySurface(m_surface);
        m_surface = VK_NULL_HANDLE;
    }
}
 
int QQnxVulkanWindow::pixelFormat() const
{
    // Return -1 to prevent QQnxWindow::setBufferSize from creating screen buffers.
    // Vulkan manages its own swapchain buffers via the VkSwapchainKHR.
    return -1;
}
 
VkSurfaceKHR *QQnxVulkanWindow::surface()
{
    if (m_surface != VK_NULL_HANDLE)
        return &m_surface;
 
    QVulkanInstance *inst = window()->vulkanInstance();
    if (!inst) {
        qCWarning(lcQpaQnxVulkan, "Attempted to create Vulkan surface without a QVulkanInstance; "
                 "was QWindow::setVulkanInstance() called?");
        return nullptr;
    }
 
    m_surface = static_cast<QQnxVulkanInstance *>(inst->handle())->createSurface(this);
    return &m_surface;
}
 
QT_END_NAMESPACE