Differential D12603 Diff 42320 source/blender/nodes/geometry/nodes/node_geo_input_index.cc

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	* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.	* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
	*/	*/

		#include "FN_field.hh"

	#include "node_geometry_util.hh"	#include "node_geometry_util.hh"

	namespace blender::nodes {	namespace blender::nodes {
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	b.add_output<decl::Int>("Index");	b.add_output<decl::Int>("Index");
	}	}

	class IndexFieldInput final : public fn::FieldInput {
	public:
	IndexFieldInput() : FieldInput(CPPType::get<int>(), "Index")
	{
	}

	const GVArray *get_varray_for_context(const fn::FieldContext &UNUSED(context),
	IndexMask mask,
	ResourceScope &scope) const final
	{
	/* TODO: Investigate a similar method to IndexRange::as_span() */
	auto index_func = [](int i) { return i; };
	return &scope.construct<
	fn::GVArray_For_EmbeddedVArray<int, VArray_For_Func<int, decltype(index_func)>>>(
	mask.min_array_size(), mask.min_array_size(), index_func);
	}
	};

	static void geo_node_input_index_exec(GeoNodeExecParams params)	static void geo_node_input_index_exec(GeoNodeExecParams params)
	{	{
	Field<int> index_field{std::make_shared<IndexFieldInput>()};	Field<int> index_field{std::make_shared<fn::IndexFieldInput>()};
	params.set_output("Index", std::move(index_field));	params.set_output("Index", std::move(index_field));
	}	}

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