to_image() [1/2]

std::shared_ptr< Core::VKImage > MayaFlux::Kakshya::WindowContainer::to_image

(

)

const

Upload the full surface readback to a new VKImage.

Requires at least one completed readback (processed_data[0] non-empty and of type vector<uint8_t>). A fresh VKImage is created and uploaded on each call via TextureLoom; callers driving a per-frame path should prefer the staging-buffer overload to avoid per-call VkBuffer churn.

Returns

Newly created VKImage, or nullptr on failure.

Definition at line 183 of file WindowContainer.cpp.

{
    std::shared_ptr<Core::VKImage> img;
    seqlock_read_void(m_data_lock, 8, [&] {
        if (m_processed_data.empty()) {
            MF_RT_WARN(Journal::Component::Kakshya, Journal::Context::ContainerProcessing,
                "WindowContainer::to_image : no readback data available for '{}'",
                m_window->get_create_info().title);
            return;
        }
 
        const auto* pixels = std::get_if<std::vector<uint8_t>>(&m_processed_data[0]);
        if (!pixels || pixels->empty()) {
            MF_RT_WARN(Journal::Component::Kakshya, Journal::Context::ContainerProcessing,
                "WindowContainer::to_image : processed_data[0] is not uint8_t or is empty for '{}'",
                m_window->get_create_info().title);
            return;
        }
 
        const auto img_fmt = surface_format_to_image_format(query_surface_format(m_window));
        img = Portal::Graphics::TextureLoom::instance().create_2d(
            m_structure.get_width(), m_structure.get_height(), img_fmt, pixels->data());
 
        if (!img) {
            MF_RT_ERROR(Journal::Component::Kakshya, Journal::Context::ContainerProcessing,
                "WindowContainer::to_image : TextureLoom::create_2d failed for '{}'",
                m_window->get_create_info().title);
        }
    });
    return img;
}

References MayaFlux::Journal::ContainerProcessing, MayaFlux::Portal::Graphics::TextureLoom::create_2d(), MayaFlux::Kakshya::ContainerDataStructure::get_height(), MayaFlux::Kakshya::ContainerDataStructure::get_width(), MayaFlux::Portal::Graphics::TextureLoom::instance(), MayaFlux::Journal::Kakshya, m_data_lock, m_processed_data, m_structure, m_window, MF_RT_ERROR, MF_RT_WARN, pixels, and MayaFlux::Kakshya::query_surface_format().

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