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