qohosvulkansurface.h

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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

#ifndef QOHOSVULKANSURFACE_H

#define QOHOSVULKANSURFACE_H

#include <QtCore/qglobal.h>

#include <native_window/external_window.h>

#include <vulkan/vulkan.h>

#include <vulkan/vulkan_ohos.h>

#include <optional>

QT_BEGIN_NAMESPACE

class QOhosVulkanSurface

    Q_DISABLE_COPY_MOVE(QOhosVulkanSurface)

public:

    QOhosVulkanSurface() = default;

    void setNativeWindowSurface(::OHNativeWindow *nativeWindow);

    VkSurfaceKHR *tryGetOrCreateVulkanWindowSurface(VkInstance instance,

                                                    PFN_vkCreateSurfaceOHOS createFn,

                                                    PFN_vkDestroySurfaceKHR destroyFn);

private:

    struct VulkanSurface {

        Q_DISABLE_COPY_MOVE(VulkanSurface)

        VkInstance instance;

        VkSurfaceKHR surface;

        PFN_vkDestroySurfaceKHR destroyFunc;

        VulkanSurface(VkInstance inst, VkSurfaceKHR surf, PFN_vkDestroySurfaceKHR fn)

            : instance(inst), surface(surf), destroyFunc(fn)

        ~VulkanSurface() {

            if (destroyFunc)

                destroyFunc(instance, surface, nullptr);

};

    ::OHNativeWindow *m_nativeWindow = nullptr;

    ::OHNativeWindow *m_surfaceNativeWindow = nullptr;

    std::optional<VulkanSurface> m_vulkanSurface = std::nullopt;

};

QT_END_NAMESPACE

#endif // QOHOSVULKANSURFACE_H