resolve_target()

std::optional< std::pair< uint32_t, uint32_t > > MayaFlux::Nodes::Network::GpuFieldOperator::resolve_target ( FieldTarget  target ) const

private

Locate a target's word offset and component count in the layout.

Returns

Nullopt when the layout carries no attribute of that modality.

Definition at line 188 of file GpuFieldOperator.cpp.

{
    const auto modality = target_modality(target);
    if (!modality.has_value())
        return std::nullopt;
 
    const auto it = std::ranges::find_if(m_layout.attributes,
        [&modality](const Kakshya::VertexAttributeLayout& a) {
            return a.component_modality == *modality;
        });
 
    if (it == m_layout.attributes.end())
        return std::nullopt;
 
    if (it->offset_in_vertex % 4 != 0) {
        MF_ERROR(Journal::Component::Nodes, Journal::Context::NodeProcessing,
            "GpuFieldOperator: attribute '{}' sits at byte offset {}, which is "
            "not word-aligned and cannot be addressed as a float index.",
            it->name, it->offset_in_vertex);
        return std::nullopt;
    }
 
    return std::make_pair(it->offset_in_vertex / 4, modality_components(*modality));
}

References a, MayaFlux::Kakshya::VertexLayout::attributes, m_layout, MF_ERROR, MayaFlux::Journal::NodeProcessing, and MayaFlux::Journal::Nodes.

Referenced by accept(), and build_spec().

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