get_frame_typed()

auto MayaFlux::Kakshya::TextureContainer::get_frame_typed ( uint64_t  frame_index ) const -> DataSpanVariant

private

Definition at line 822 of file TextureContainer.cpp.

{
    if (frame_index >= m_data.size()) {
        return { std::span<const uint8_t> {} };
    }
 
    const size_t layer_elems = static_cast<size_t>(m_width) * m_height * m_channels;
    DataSpanVariant out { std::span<const uint8_t> {} };
    seqlock_read_void(m_slot_locks[frame_index], 8, [&] {
        out = std::visit(
            [&](const auto& vec) -> DataSpanVariant {
                using T = typename std::decay_t<decltype(vec)>::value_type;
                if constexpr (std::is_same_v<T, uint8_t> || std::is_same_v<T, uint16_t> || std::is_same_v<T, float>) {
                    const size_t nn = std::min(layer_elems, vec.size());
                    return DataSpanVariant(std::span<const T>(vec.data(), nn));
                } else {
                    return { std::span<const uint8_t> {} };
                }
            },
            m_data[frame_index]);
    });
    return out;
}