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/* SPDX-License-Identifier: GPL-2.0-or-later */
#pragma once
/** \file
* \ingroup bke
*
* Common field utilities and field definitions for geometry components.
*/
#include "BKE_geometry_set.hh"
#include "FN_field.hh"
namespace blender::bke {
class GeometryComponentFieldContext : public fn::FieldContext {
private:
const GeometryComponent &component_;
const eAttrDomain domain_;
public:
GeometryComponentFieldContext(const GeometryComponent &component, const eAttrDomain domain)
: component_(component), domain_(domain)
{
}
const GeometryComponent &geometry_component() const
{
return component_;
}
eAttrDomain domain() const
{
return domain_;
}
};
class GeometryFieldInput : public fn::FieldInput {
public:
using fn::FieldInput::FieldInput;
GVArray get_varray_for_context(const fn::FieldContext &context,
IndexMask mask,
ResourceScope &scope) const override;
virtual GVArray get_varray_for_context(const GeometryComponent &component,
eAttrDomain domain,
IndexMask mask) const = 0;
};
class AttributeFieldInput : public GeometryFieldInput {
private:
std::string name_;
public:
AttributeFieldInput(std::string name, const CPPType &type)
: GeometryFieldInput(type, name), name_(std::move(name))
{
category_ = Category::NamedAttribute;
}
template<typename T> static fn::Field<T> Create(std::string name)
{
const CPPType &type = CPPType::get<T>();
auto field_input = std::make_shared<AttributeFieldInput>(std::move(name), type);
return fn::Field<T>{field_input};
}
StringRefNull attribute_name() const
{
return name_;
}
GVArray get_varray_for_context(const GeometryComponent &component,
eAttrDomain domain,
IndexMask mask) const override;
std::string socket_inspection_name() const override;
uint64_t hash() const override;
bool is_equal_to(const fn::FieldNode &other) const override;
};
class IDAttributeFieldInput : public GeometryFieldInput {
public:
IDAttributeFieldInput() : GeometryFieldInput(CPPType::get<int>())
{
category_ = Category::Generated;
}
GVArray get_varray_for_context(const GeometryComponent &component,
eAttrDomain domain,
IndexMask mask) const override;
std::string socket_inspection_name() const override;
uint64_t hash() const override;
bool is_equal_to(const fn::FieldNode &other) const override;
};
VArray<float3> curve_normals_varray(const CurveComponent &component, const eAttrDomain domain);
VArray<float3> mesh_normals_varray(const MeshComponent &mesh_component,
const Mesh &mesh,
const IndexMask mask,
eAttrDomain domain);
class NormalFieldInput : public GeometryFieldInput {
public:
NormalFieldInput() : GeometryFieldInput(CPPType::get<float3>())
{
category_ = Category::Generated;
}
GVArray get_varray_for_context(const GeometryComponent &component,
const eAttrDomain domain,
IndexMask mask) const override;
std::string socket_inspection_name() const override;
uint64_t hash() const override;
bool is_equal_to(const fn::FieldNode &other) const override;
};
class AnonymousAttributeFieldInput : public GeometryFieldInput {
private:
/**
* A strong reference is required to make sure that the referenced attribute is not removed
* automatically.
*/
StrongAnonymousAttributeID anonymous_id_;
std::string producer_name_;
public:
AnonymousAttributeFieldInput(StrongAnonymousAttributeID anonymous_id,
const CPPType &type,
std::string producer_name)
: GeometryFieldInput(type, anonymous_id.debug_name()),
anonymous_id_(std::move(anonymous_id)),
producer_name_(producer_name)
{
category_ = Category::AnonymousAttribute;
}
template<typename T>
static fn::Field<T> Create(StrongAnonymousAttributeID anonymous_id, std::string producer_name)
{
const CPPType &type = CPPType::get<T>();
auto field_input = std::make_shared<AnonymousAttributeFieldInput>(
std::move(anonymous_id), type, std::move(producer_name));
return fn::Field<T>{field_input};
}
GVArray get_varray_for_context(const GeometryComponent &component,
eAttrDomain domain,
IndexMask mask) const override;
std::string socket_inspection_name() const override;
uint64_t hash() const override;
bool is_equal_to(const fn::FieldNode &other) const override;
};
class CurveLengthFieldInput final : public GeometryFieldInput {
public:
CurveLengthFieldInput();
GVArray get_varray_for_context(const GeometryComponent &component,
eAttrDomain domain,
IndexMask mask) const final;
uint64_t hash() const override;
bool is_equal_to(const fn::FieldNode &other) const override;
};
} // namespace blender::bke
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