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/*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#include "BLI_task.hh"
#include "BKE_spline.hh"
#include "node_geometry_util.hh"
namespace blender::nodes::node_geo_curve_reverse_cc {
static void geo_node_curve_reverse_declare(NodeDeclarationBuilder &b)
{
b.add_input<decl::Geometry>(N_("Curve")).supported_type(GEO_COMPONENT_TYPE_CURVE);
b.add_input<decl::Bool>(N_("Selection")).default_value(true).hide_value().supports_field();
b.add_output<decl::Geometry>(N_("Curve"));
}
static void geo_node_curve_reverse_exec(GeoNodeExecParams params)
{
GeometrySet geometry_set = params.extract_input<GeometrySet>("Curve");
geometry_set.modify_geometry_sets([&](GeometrySet &geometry_set) {
if (!geometry_set.has_curve()) {
return;
}
Field<bool> selection_field = params.get_input<Field<bool>>("Selection");
CurveComponent &component = geometry_set.get_component_for_write<CurveComponent>();
GeometryComponentFieldContext field_context{component, ATTR_DOMAIN_CURVE};
const int domain_size = component.attribute_domain_size(ATTR_DOMAIN_CURVE);
fn::FieldEvaluator selection_evaluator{field_context, domain_size};
selection_evaluator.add(selection_field);
selection_evaluator.evaluate();
const IndexMask selection = selection_evaluator.get_evaluated_as_mask(0);
CurveEval &curve = *component.get_for_write();
MutableSpan<SplinePtr> splines = curve.splines();
threading::parallel_for(selection.index_range(), 128, [&](IndexRange range) {
for (const int i : range) {
splines[selection[i]]->reverse();
}
});
});
params.set_output("Curve", std::move(geometry_set));
}
} // namespace blender::nodes::node_geo_curve_reverse_cc
void register_node_type_geo_curve_reverse()
{
namespace file_ns = blender::nodes::node_geo_curve_reverse_cc;
static bNodeType ntype;
geo_node_type_base(&ntype, GEO_NODE_REVERSE_CURVE, "Reverse Curve", NODE_CLASS_GEOMETRY, 0);
ntype.declare = file_ns::geo_node_curve_reverse_declare;
ntype.geometry_node_execute = file_ns::geo_node_curve_reverse_exec;
nodeRegisterType(&ntype);
}
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