extract_inputs()

template<ComputeData InputType = std::vector<Kakshya::DataVariant>, ComputeData OutputType = InputType>

virtual std::pair< std::vector< std::vector< double > >, DataStructureInfo > MayaFlux::Yantra::GpuExecutionContext< InputType, OutputType >::extract_inputs ( const input_type &  input )

inlineprotectedvirtual

Extract double channels and structure metadata from the input Datum.

Default replicates the previous inline behaviour: calls OperationHelper::extract_structured_double and copies spans into owned vectors.

Override to return ({}, {}) when the shader reads only from pre-staged image or passthrough bindings and channel extraction is meaningless for the input type.

Definition at line 90 of file GpuExecutionContext.hpp.

    {
        auto [spans, structure_info] = OperationHelper::extract_structured_double(
            const_cast<input_type&>(input));
 
        std::vector<std::vector<double>> channels(spans.size());
        for (size_t c = 0; c < spans.size(); ++c)
            channels[c].assign(spans[c].begin(), spans[c].end());
 
        return { std::move(channels), std::move(structure_info) };
    }