cached_layer_image()

std::shared_ptr< Core::VKImage > MayaFlux::Kakshya::TextureContainer::cached_layer_image ( uint32_t  layer, const std::shared_ptr< Buffers::VKBuffer > &  staging  ) const

private

Definition at line 361 of file TextureContainer.cpp.

{
    if (layer >= m_data.size()) {
        MF_ERROR(Journal::Component::Kakshya, Journal::Context::ContainerProcessing,
            "TextureContainer::to_image layer {} out of range ({})", layer, m_data.size());
        return nullptr;
    }
 
    if (m_cpu_stale[layer].load(std::memory_order_acquire)) {
        Memory::SerializedSeqlockWriteGuard image_guard(m_image_cache_lock);
        return m_layer_image_cache[layer].image;
    }
 
    const size_t expected = byte_size();
    auto pixels = seqlock_read(m_slot_locks[layer], 8, [&]() -> std::vector<uint8_t> {
        auto [ptr, bytes] = variant_bytes(m_data[layer]);
        if (!ptr || bytes != expected)
            return {};
        return { ptr, ptr + bytes };
    });
 
    if (!pixels || pixels->empty()) {
        MF_ERROR(Journal::Component::Kakshya, Journal::Context::ContainerProcessing,
            "TextureContainer::to_image called on empty or invalid layer {}", layer);
        return nullptr;
    }
 
    const Portal::Graphics::ImageKey key {
        .width = m_width, .height = m_height, .layers = 1, .format = m_format
    };
    Memory::SerializedSeqlockWriteGuard image_guard(m_image_cache_lock);
    return TextureLoom::instance().refresh_cached_image(
        m_layer_image_cache[layer], key, *pixels, staging);
}

References byte_size(), MayaFlux::Journal::ContainerProcessing, MayaFlux::Portal::Graphics::TextureLoom::instance(), MayaFlux::Journal::Kakshya, m_cpu_stale, m_data, m_format, m_height, m_image_cache_lock, m_layer_image_cache, m_slot_locks, m_width, MF_ERROR, pixels, ptr, MayaFlux::Portal::Graphics::TextureLoom::refresh_cached_image(), MayaFlux::Kakshya::variant_bytes(), and MayaFlux::Portal::Graphics::ImageKey::width.

Referenced by cached_array_image(), to_image(), and to_image().

Here is the call graph for this function:

Here is the caller graph for this function: