Files
test/source/blender/nodes/intern/geometry_nodes_execute.cc
Hans Goudey 19001c9e6c Cleanup: Move attribute domain enum to C++ header, use enum class
Each value is now out of the global namespace, so they can be shorter
and easier to read. Most of this commit just adds the necessary casting
and namespace specification. `enum class` can be forward declared since
it has a specified size. We will make use of that in the next commit.
2023-12-20 13:25:28 -05:00

921 lines
36 KiB
C++

/* SPDX-FileCopyrightText: 2023 Blender Authors
*
* SPDX-License-Identifier: GPL-2.0-or-later */
/** \file
* \ingroup nodes
*/
#include "BLI_math_color.hh"
#include "BLI_math_euler.hh"
#include "BLI_math_quaternion.hh"
#include "BLI_string.h"
#include "NOD_geometry.hh"
#include "NOD_geometry_nodes_execute.hh"
#include "NOD_geometry_nodes_lazy_function.hh"
#include "NOD_node_declaration.hh"
#include "NOD_socket.hh"
#include "BKE_compute_contexts.hh"
#include "BKE_geometry_fields.hh"
#include "BKE_geometry_set.hh"
#include "BKE_idprop.hh"
#include "BKE_node_runtime.hh"
#include "BKE_node_socket_value.hh"
#include "BKE_type_conversions.hh"
#include "FN_lazy_function_execute.hh"
namespace lf = blender::fn::lazy_function;
namespace geo_log = blender::nodes::geo_eval_log;
namespace blender::nodes {
static void add_used_ids_from_sockets(const ListBase &sockets, Set<ID *> &ids)
{
LISTBASE_FOREACH (const bNodeSocket *, socket, &sockets) {
switch (socket->type) {
case SOCK_OBJECT: {
if (Object *object = ((bNodeSocketValueObject *)socket->default_value)->value) {
ids.add(reinterpret_cast<ID *>(object));
}
break;
}
case SOCK_COLLECTION: {
if (Collection *collection = ((bNodeSocketValueCollection *)socket->default_value)->value)
{
ids.add(reinterpret_cast<ID *>(collection));
}
break;
}
case SOCK_MATERIAL: {
if (Material *material = ((bNodeSocketValueMaterial *)socket->default_value)->value) {
ids.add(reinterpret_cast<ID *>(material));
}
break;
}
case SOCK_TEXTURE: {
if (Tex *texture = ((bNodeSocketValueTexture *)socket->default_value)->value) {
ids.add(reinterpret_cast<ID *>(texture));
}
break;
}
case SOCK_IMAGE: {
if (Image *image = ((bNodeSocketValueImage *)socket->default_value)->value) {
ids.add(reinterpret_cast<ID *>(image));
}
break;
}
}
}
}
/**
* \note We can only check properties here that cause the dependency graph to update relations when
* they are changed, otherwise there may be a missing relation after editing. So this could check
* more properties like whether the node is muted, but we would have to accept the cost of updating
* relations when those properties are changed.
*/
static bool node_needs_own_transform_relation(const bNode &node)
{
if (node.type == GEO_NODE_COLLECTION_INFO) {
const NodeGeometryCollectionInfo &storage = *static_cast<const NodeGeometryCollectionInfo *>(
node.storage);
return storage.transform_space == GEO_NODE_TRANSFORM_SPACE_RELATIVE;
}
if (node.type == GEO_NODE_OBJECT_INFO) {
const NodeGeometryObjectInfo &storage = *static_cast<const NodeGeometryObjectInfo *>(
node.storage);
return storage.transform_space == GEO_NODE_TRANSFORM_SPACE_RELATIVE;
}
if (node.type == GEO_NODE_SELF_OBJECT) {
return true;
}
if (node.type == GEO_NODE_DEFORM_CURVES_ON_SURFACE) {
return true;
}
return false;
}
static void process_nodes_for_depsgraph(const bNodeTree &tree,
Set<ID *> &ids,
bool &r_needs_own_transform_relation,
bool &r_needs_scene_camera_relation,
Set<const bNodeTree *> &checked_groups)
{
if (!checked_groups.add(&tree)) {
return;
}
tree.ensure_topology_cache();
for (const bNode *node : tree.all_nodes()) {
add_used_ids_from_sockets(node->inputs, ids);
add_used_ids_from_sockets(node->outputs, ids);
r_needs_own_transform_relation |= node_needs_own_transform_relation(*node);
r_needs_scene_camera_relation |= (node->type == GEO_NODE_INPUT_ACTIVE_CAMERA);
}
for (const bNode *node : tree.group_nodes()) {
if (const bNodeTree *sub_tree = reinterpret_cast<const bNodeTree *>(node->id)) {
process_nodes_for_depsgraph(*sub_tree,
ids,
r_needs_own_transform_relation,
r_needs_scene_camera_relation,
checked_groups);
}
}
}
void find_node_tree_dependencies(const bNodeTree &tree,
Set<ID *> &r_ids,
bool &r_needs_own_transform_relation,
bool &r_needs_scene_camera_relation)
{
Set<const bNodeTree *> checked_groups;
process_nodes_for_depsgraph(
tree, r_ids, r_needs_own_transform_relation, r_needs_scene_camera_relation, checked_groups);
}
StringRef input_use_attribute_suffix()
{
return "_use_attribute";
}
StringRef input_attribute_name_suffix()
{
return "_attribute_name";
}
bool socket_type_has_attribute_toggle(const eNodeSocketDatatype type)
{
return socket_type_supports_fields(type);
}
bool input_has_attribute_toggle(const bNodeTree &node_tree, const int socket_index)
{
BLI_assert(node_tree.runtime->field_inferencing_interface);
const nodes::FieldInferencingInterface &field_interface =
*node_tree.runtime->field_inferencing_interface;
return field_interface.inputs[socket_index] != nodes::InputSocketFieldType::None;
}
std::unique_ptr<IDProperty, bke::idprop::IDPropertyDeleter> id_property_create_from_socket(
const bNodeTreeInterfaceSocket &socket)
{
const StringRefNull identifier = socket.identifier;
const bNodeSocketType *typeinfo = socket.socket_typeinfo();
const eNodeSocketDatatype type = typeinfo ? eNodeSocketDatatype(typeinfo->type) : SOCK_CUSTOM;
switch (type) {
case SOCK_FLOAT: {
const bNodeSocketValueFloat *value = static_cast<const bNodeSocketValueFloat *>(
socket.socket_data);
auto property = bke::idprop::create(identifier, value->value);
IDPropertyUIDataFloat *ui_data = (IDPropertyUIDataFloat *)IDP_ui_data_ensure(property.get());
ui_data->base.rna_subtype = value->subtype;
ui_data->soft_min = double(value->min);
ui_data->soft_max = double(value->max);
ui_data->default_value = value->value;
return property;
}
case SOCK_INT: {
const bNodeSocketValueInt *value = static_cast<const bNodeSocketValueInt *>(
socket.socket_data);
auto property = bke::idprop::create(identifier, value->value);
IDPropertyUIDataInt *ui_data = (IDPropertyUIDataInt *)IDP_ui_data_ensure(property.get());
ui_data->base.rna_subtype = value->subtype;
ui_data->soft_min = value->min;
ui_data->soft_max = value->max;
ui_data->default_value = value->value;
return property;
}
case SOCK_VECTOR: {
const bNodeSocketValueVector *value = static_cast<const bNodeSocketValueVector *>(
socket.socket_data);
auto property = bke::idprop::create(
identifier, Span<float>{value->value[0], value->value[1], value->value[2]});
IDPropertyUIDataFloat *ui_data = (IDPropertyUIDataFloat *)IDP_ui_data_ensure(property.get());
ui_data->base.rna_subtype = value->subtype;
ui_data->soft_min = double(value->min);
ui_data->soft_max = double(value->max);
ui_data->default_array = (double *)MEM_mallocN(sizeof(double[3]), "mod_prop_default");
ui_data->default_array_len = 3;
for (const int i : IndexRange(3)) {
ui_data->default_array[i] = double(value->value[i]);
}
return property;
}
case SOCK_RGBA: {
const bNodeSocketValueRGBA *value = static_cast<const bNodeSocketValueRGBA *>(
socket.socket_data);
auto property = bke::idprop::create(
identifier,
Span<float>{value->value[0], value->value[1], value->value[2], value->value[3]});
IDPropertyUIDataFloat *ui_data = (IDPropertyUIDataFloat *)IDP_ui_data_ensure(property.get());
ui_data->base.rna_subtype = PROP_COLOR;
ui_data->default_array = (double *)MEM_mallocN(sizeof(double[4]), __func__);
ui_data->default_array_len = 4;
ui_data->min = 0.0;
ui_data->max = FLT_MAX;
ui_data->soft_min = 0.0;
ui_data->soft_max = 1.0;
for (const int i : IndexRange(4)) {
ui_data->default_array[i] = double(value->value[i]);
}
return property;
}
case SOCK_BOOLEAN: {
if (is_layer_selection_field(socket)) {
/* We can't use the value from the socket here since it doesn't storing a string. */
return bke::idprop::create(identifier, "");
}
const bNodeSocketValueBoolean *value = static_cast<const bNodeSocketValueBoolean *>(
socket.socket_data);
auto property = bke::idprop::create_bool(identifier, value->value);
IDPropertyUIDataBool *ui_data = (IDPropertyUIDataBool *)IDP_ui_data_ensure(property.get());
ui_data->default_value = value->value != 0;
return property;
}
case SOCK_ROTATION: {
const bNodeSocketValueRotation *value = static_cast<const bNodeSocketValueRotation *>(
socket.socket_data);
auto property = bke::idprop::create(
identifier,
Span<float>{value->value_euler[0], value->value_euler[1], value->value_euler[2]});
IDPropertyUIDataFloat *ui_data = reinterpret_cast<IDPropertyUIDataFloat *>(
IDP_ui_data_ensure(property.get()));
ui_data->base.rna_subtype = PROP_EULER;
return property;
}
case SOCK_STRING: {
const bNodeSocketValueString *value = static_cast<const bNodeSocketValueString *>(
socket.socket_data);
auto property = bke::idprop::create(identifier, value->value);
IDPropertyUIDataString *ui_data = (IDPropertyUIDataString *)IDP_ui_data_ensure(
property.get());
ui_data->default_value = BLI_strdup(value->value);
return property;
}
case SOCK_OBJECT: {
const bNodeSocketValueObject *value = static_cast<const bNodeSocketValueObject *>(
socket.socket_data);
auto property = bke::idprop::create(identifier, reinterpret_cast<ID *>(value->value));
IDPropertyUIDataID *ui_data = (IDPropertyUIDataID *)IDP_ui_data_ensure(property.get());
ui_data->id_type = ID_OB;
return property;
}
case SOCK_COLLECTION: {
const bNodeSocketValueCollection *value = static_cast<const bNodeSocketValueCollection *>(
socket.socket_data);
return bke::idprop::create(identifier, reinterpret_cast<ID *>(value->value));
}
case SOCK_TEXTURE: {
const bNodeSocketValueTexture *value = static_cast<const bNodeSocketValueTexture *>(
socket.socket_data);
return bke::idprop::create(identifier, reinterpret_cast<ID *>(value->value));
}
case SOCK_IMAGE: {
const bNodeSocketValueImage *value = static_cast<const bNodeSocketValueImage *>(
socket.socket_data);
return bke::idprop::create(identifier, reinterpret_cast<ID *>(value->value));
}
case SOCK_MATERIAL: {
const bNodeSocketValueMaterial *value = static_cast<const bNodeSocketValueMaterial *>(
socket.socket_data);
return bke::idprop::create(identifier, reinterpret_cast<ID *>(value->value));
}
case SOCK_CUSTOM:
case SOCK_GEOMETRY:
case SOCK_SHADER:
return nullptr;
}
return nullptr;
}
bool id_property_type_matches_socket(const bNodeTreeInterfaceSocket &socket,
const IDProperty &property)
{
const bNodeSocketType *typeinfo = socket.socket_typeinfo();
const eNodeSocketDatatype type = typeinfo ? eNodeSocketDatatype(typeinfo->type) : SOCK_CUSTOM;
switch (type) {
case SOCK_FLOAT:
return ELEM(property.type, IDP_FLOAT, IDP_DOUBLE);
case SOCK_INT:
return property.type == IDP_INT;
case SOCK_VECTOR:
case SOCK_ROTATION:
return property.type == IDP_ARRAY &&
ELEM(property.subtype, IDP_INT, IDP_FLOAT, IDP_DOUBLE) && property.len == 3;
case SOCK_RGBA:
return property.type == IDP_ARRAY &&
ELEM(property.subtype, IDP_INT, IDP_FLOAT, IDP_DOUBLE) && property.len == 4;
case SOCK_BOOLEAN:
if (is_layer_selection_field(socket)) {
return property.type == IDP_STRING;
}
return property.type == IDP_BOOLEAN;
case SOCK_STRING:
return property.type == IDP_STRING;
case SOCK_OBJECT:
case SOCK_COLLECTION:
case SOCK_TEXTURE:
case SOCK_IMAGE:
case SOCK_MATERIAL:
return property.type == IDP_ID;
case SOCK_CUSTOM:
case SOCK_GEOMETRY:
case SOCK_SHADER:
return false;
}
BLI_assert_unreachable();
return false;
}
static void init_socket_cpp_value_from_property(const IDProperty &property,
const eNodeSocketDatatype socket_value_type,
void *r_value)
{
switch (socket_value_type) {
case SOCK_FLOAT: {
float value = 0.0f;
if (property.type == IDP_FLOAT) {
value = IDP_Float(&property);
}
else if (property.type == IDP_DOUBLE) {
value = float(IDP_Double(&property));
}
new (r_value) bke::SocketValueVariant(value);
break;
}
case SOCK_INT: {
int value = IDP_Int(&property);
new (r_value) bke::SocketValueVariant(value);
break;
}
case SOCK_VECTOR: {
const void *property_array = IDP_Array(&property);
float3 value;
if (property.subtype == IDP_FLOAT) {
value = float3(static_cast<const float *>(property_array));
}
else if (property.subtype == IDP_INT) {
value = float3(int3(static_cast<const int *>(property_array)));
}
else {
BLI_assert(property.subtype == IDP_DOUBLE);
value = float3(double3(static_cast<const double *>(property_array)));
}
new (r_value) bke::SocketValueVariant(value);
break;
}
case SOCK_RGBA: {
const void *property_array = IDP_Array(&property);
float4 vec;
if (property.subtype == IDP_FLOAT) {
vec = float4(static_cast<const float *>(property_array));
}
else if (property.subtype == IDP_INT) {
vec = float4(int4(static_cast<const int *>(property_array)));
}
else {
BLI_assert(property.subtype == IDP_DOUBLE);
vec = float4(double4(static_cast<const double *>(property_array)));
}
ColorGeometry4f value(vec);
new (r_value) bke::SocketValueVariant(value);
break;
}
case SOCK_BOOLEAN: {
const bool value = IDP_Bool(&property);
new (r_value) bke::SocketValueVariant(value);
break;
}
case SOCK_ROTATION: {
const void *property_array = IDP_Array(&property);
float3 vec;
if (property.subtype == IDP_FLOAT) {
vec = float3(static_cast<const float *>(property_array));
}
else if (property.subtype == IDP_INT) {
vec = float3(int3(static_cast<const int *>(property_array)));
}
else {
BLI_assert(property.subtype == IDP_DOUBLE);
vec = float3(double3(static_cast<const double *>(property_array)));
}
const math::EulerXYZ euler_value = math::EulerXYZ(vec);
new (r_value) bke::SocketValueVariant(math::to_quaternion(euler_value));
break;
}
case SOCK_STRING: {
std::string value = IDP_String(&property);
new (r_value) bke::SocketValueVariant(std::move(value));
break;
}
case SOCK_OBJECT: {
ID *id = IDP_Id(&property);
Object *object = (id && GS(id->name) == ID_OB) ? (Object *)id : nullptr;
*(Object **)r_value = object;
break;
}
case SOCK_COLLECTION: {
ID *id = IDP_Id(&property);
Collection *collection = (id && GS(id->name) == ID_GR) ? (Collection *)id : nullptr;
*(Collection **)r_value = collection;
break;
}
case SOCK_TEXTURE: {
ID *id = IDP_Id(&property);
Tex *texture = (id && GS(id->name) == ID_TE) ? (Tex *)id : nullptr;
*(Tex **)r_value = texture;
break;
}
case SOCK_IMAGE: {
ID *id = IDP_Id(&property);
Image *image = (id && GS(id->name) == ID_IM) ? (Image *)id : nullptr;
*(Image **)r_value = image;
break;
}
case SOCK_MATERIAL: {
ID *id = IDP_Id(&property);
Material *material = (id && GS(id->name) == ID_MA) ? (Material *)id : nullptr;
*(Material **)r_value = material;
break;
}
default: {
BLI_assert_unreachable();
break;
}
}
}
std::optional<StringRef> input_attribute_name_get(const IDProperty &props,
const bNodeTreeInterfaceSocket &io_input)
{
IDProperty *use_attribute = IDP_GetPropertyFromGroup(
&props, (std::string(io_input.identifier) + input_use_attribute_suffix()).c_str());
if (!use_attribute) {
return std::nullopt;
}
if (use_attribute->type == IDP_INT) {
if (IDP_Int(use_attribute) == 0) {
return std::nullopt;
}
}
if (use_attribute->type == IDP_BOOLEAN) {
if (!IDP_Bool(use_attribute)) {
return std::nullopt;
}
}
const IDProperty *property_attribute_name = IDP_GetPropertyFromGroup(
&props, (io_input.identifier + input_attribute_name_suffix()).c_str());
return IDP_String(property_attribute_name);
}
static void initialize_group_input(const bNodeTree &tree,
const IDProperty *properties,
const int input_index,
void *r_value)
{
const bNodeTreeInterfaceSocket &io_input = *tree.interface_inputs()[input_index];
const bNodeSocketType *typeinfo = io_input.socket_typeinfo();
const eNodeSocketDatatype socket_data_type = typeinfo ? eNodeSocketDatatype(typeinfo->type) :
SOCK_CUSTOM;
if (properties == nullptr) {
typeinfo->get_geometry_nodes_cpp_value(io_input.socket_data, r_value);
return;
}
const IDProperty *property = IDP_GetPropertyFromGroup(properties, io_input.identifier);
if (property == nullptr) {
typeinfo->get_geometry_nodes_cpp_value(io_input.socket_data, r_value);
return;
}
if (!id_property_type_matches_socket(io_input, *property)) {
typeinfo->get_geometry_nodes_cpp_value(io_input.socket_data, r_value);
return;
}
if (!input_has_attribute_toggle(tree, input_index)) {
init_socket_cpp_value_from_property(*property, socket_data_type, r_value);
return;
}
const std::optional<StringRef> attribute_name = input_attribute_name_get(*properties, io_input);
if (attribute_name && bke::allow_procedural_attribute_access(*attribute_name)) {
fn::GField attribute_field = bke::AttributeFieldInput::Create(*attribute_name,
*typeinfo->base_cpp_type);
new (r_value) bke::SocketValueVariant(std::move(attribute_field));
}
else if (is_layer_selection_field(io_input)) {
const IDProperty *property_layer_name = IDP_GetPropertyFromGroup(properties,
io_input.identifier);
StringRef layer_name = IDP_String(property_layer_name);
const fn::GField selection_field(
std::make_shared<bke::NamedLayerSelectionFieldInput>(layer_name), 0);
new (r_value) bke::SocketValueVariant(std::move(selection_field));
}
else {
init_socket_cpp_value_from_property(*property, socket_data_type, r_value);
}
}
struct OutputAttributeInfo {
fn::GField field;
StringRefNull name;
};
struct OutputAttributeToStore {
bke::GeometryComponent::Type component_type;
bke::AttrDomain domain;
StringRefNull name;
GMutableSpan data;
};
/**
* The output attributes are organized based on their domain, because attributes on the same domain
* can be evaluated together.
*/
static MultiValueMap<bke::AttrDomain, OutputAttributeInfo> find_output_attributes_to_store(
const bNodeTree &tree, const IDProperty *properties, Span<GMutablePointer> output_values)
{
const bNode &output_node = *tree.group_output_node();
MultiValueMap<bke::AttrDomain, OutputAttributeInfo> outputs_by_domain;
for (const bNodeSocket *socket : output_node.input_sockets().drop_front(1).drop_back(1)) {
if (!socket_type_has_attribute_toggle(eNodeSocketDatatype(socket->type))) {
continue;
}
const std::string prop_name = socket->identifier + input_attribute_name_suffix();
const IDProperty *prop = IDP_GetPropertyFromGroup(properties, prop_name.c_str());
if (prop == nullptr) {
continue;
}
const StringRefNull attribute_name = IDP_String(prop);
if (attribute_name.is_empty()) {
continue;
}
if (!bke::allow_procedural_attribute_access(attribute_name)) {
continue;
}
const int index = socket->index();
bke::SocketValueVariant &value_variant = *output_values[index].get<bke::SocketValueVariant>();
const fn::GField field = value_variant.extract<fn::GField>();
const bNodeTreeInterfaceSocket *interface_socket = tree.interface_outputs()[index];
const bke::AttrDomain domain = bke::AttrDomain(interface_socket->attribute_domain);
OutputAttributeInfo output_info;
output_info.field = std::move(field);
output_info.name = attribute_name;
outputs_by_domain.add(domain, std::move(output_info));
}
return outputs_by_domain;
}
/**
* The computed values are stored in newly allocated arrays. They still have to be moved to the
* actual geometry.
*/
static Vector<OutputAttributeToStore> compute_attributes_to_store(
const bke::GeometrySet &geometry,
const MultiValueMap<bke::AttrDomain, OutputAttributeInfo> &outputs_by_domain)
{
Vector<OutputAttributeToStore> attributes_to_store;
for (const auto component_type : {bke::GeometryComponent::Type::Mesh,
bke::GeometryComponent::Type::PointCloud,
bke::GeometryComponent::Type::Curve,
bke::GeometryComponent::Type::Instance})
{
if (!geometry.has(component_type)) {
continue;
}
const bke::GeometryComponent &component = *geometry.get_component(component_type);
const bke::AttributeAccessor attributes = *component.attributes();
for (const auto item : outputs_by_domain.items()) {
const bke::AttrDomain domain = item.key;
const Span<OutputAttributeInfo> outputs_info = item.value;
if (!attributes.domain_supported(domain)) {
continue;
}
const int domain_size = attributes.domain_size(domain);
bke::GeometryFieldContext field_context{component, domain};
fn::FieldEvaluator field_evaluator{field_context, domain_size};
for (const OutputAttributeInfo &output_info : outputs_info) {
const CPPType &type = output_info.field.cpp_type();
const bke::AttributeValidator validator = attributes.lookup_validator(output_info.name);
OutputAttributeToStore store{
component_type,
domain,
output_info.name,
GMutableSpan{
type, MEM_malloc_arrayN(domain_size, type.size(), __func__), domain_size}};
fn::GField field = validator.validate_field_if_necessary(output_info.field);
field_evaluator.add_with_destination(std::move(field), store.data);
attributes_to_store.append(store);
}
field_evaluator.evaluate();
}
}
return attributes_to_store;
}
static void store_computed_output_attributes(
bke::GeometrySet &geometry, const Span<OutputAttributeToStore> attributes_to_store)
{
for (const OutputAttributeToStore &store : attributes_to_store) {
bke::GeometryComponent &component = geometry.get_component_for_write(store.component_type);
bke::MutableAttributeAccessor attributes = *component.attributes_for_write();
const eCustomDataType data_type = bke::cpp_type_to_custom_data_type(store.data.type());
const std::optional<bke::AttributeMetaData> meta_data = attributes.lookup_meta_data(
store.name);
/* Attempt to remove the attribute if it already exists but the domain and type don't match.
* Removing the attribute won't succeed if it is built in and non-removable. */
if (meta_data.has_value() &&
(meta_data->domain != store.domain || meta_data->data_type != data_type))
{
attributes.remove(store.name);
}
/* Try to create the attribute reusing the stored buffer. This will only succeed if the
* attribute didn't exist before, or if it existed but was removed above. */
if (attributes.add(store.name,
store.domain,
bke::cpp_type_to_custom_data_type(store.data.type()),
bke::AttributeInitMoveArray(store.data.data())))
{
continue;
}
bke::GAttributeWriter attribute = attributes.lookup_or_add_for_write(
store.name, store.domain, data_type);
if (attribute) {
attribute.varray.set_all(store.data.data());
attribute.finish();
}
/* We were unable to reuse the data, so it must be destructed and freed. */
store.data.type().destruct_n(store.data.data(), store.data.size());
MEM_freeN(store.data.data());
}
}
static void store_output_attributes(bke::GeometrySet &geometry,
const bNodeTree &tree,
const IDProperty *properties,
Span<GMutablePointer> output_values)
{
/* All new attribute values have to be computed before the geometry is actually changed. This is
* necessary because some fields might depend on attributes that are overwritten. */
MultiValueMap<bke::AttrDomain, OutputAttributeInfo> outputs_by_domain =
find_output_attributes_to_store(tree, properties, output_values);
Vector<OutputAttributeToStore> attributes_to_store = compute_attributes_to_store(
geometry, outputs_by_domain);
store_computed_output_attributes(geometry, attributes_to_store);
}
bke::GeometrySet execute_geometry_nodes_on_geometry(const bNodeTree &btree,
const IDProperty *properties,
const ComputeContext &base_compute_context,
GeoNodesCallData &call_data,
bke::GeometrySet input_geometry)
{
const nodes::GeometryNodesLazyFunctionGraphInfo &lf_graph_info =
*nodes::ensure_geometry_nodes_lazy_function_graph(btree);
const GeometryNodesGroupFunction &function = lf_graph_info.function;
const lf::LazyFunction &lazy_function = *function.function;
const int num_inputs = lazy_function.inputs().size();
const int num_outputs = lazy_function.outputs().size();
Array<GMutablePointer> param_inputs(num_inputs);
Array<GMutablePointer> param_outputs(num_outputs);
Array<std::optional<lf::ValueUsage>> param_input_usages(num_inputs);
Array<lf::ValueUsage> param_output_usages(num_outputs);
Array<bool> param_set_outputs(num_outputs, false);
/* We want to evaluate the main outputs, but don't care about which inputs are used for now. */
param_output_usages.as_mutable_span().slice(function.outputs.main).fill(lf::ValueUsage::Used);
param_output_usages.as_mutable_span()
.slice(function.outputs.input_usages)
.fill(lf::ValueUsage::Unused);
nodes::GeoNodesLFUserData user_data;
user_data.call_data = &call_data;
call_data.root_ntree = &btree;
user_data.compute_context = &base_compute_context;
LinearAllocator<> allocator;
Vector<GMutablePointer> inputs_to_destruct;
btree.ensure_interface_cache();
/* Prepare main inputs. */
for (const int i : btree.interface_inputs().index_range()) {
const bNodeTreeInterfaceSocket &interface_socket = *btree.interface_inputs()[i];
const bNodeSocketType *typeinfo = interface_socket.socket_typeinfo();
const eNodeSocketDatatype socket_type = typeinfo ? eNodeSocketDatatype(typeinfo->type) :
SOCK_CUSTOM;
if (socket_type == SOCK_GEOMETRY && i == 0) {
param_inputs[function.inputs.main[0]] = &input_geometry;
continue;
}
const CPPType *type = typeinfo->geometry_nodes_cpp_type;
BLI_assert(type != nullptr);
void *value = allocator.allocate(type->size(), type->alignment());
initialize_group_input(btree, properties, i, value);
param_inputs[function.inputs.main[i]] = {type, value};
inputs_to_destruct.append({type, value});
}
/* Prepare used-outputs inputs. */
Array<bool> output_used_inputs(btree.interface_outputs().size(), true);
for (const int i : btree.interface_outputs().index_range()) {
param_inputs[function.inputs.output_usages[i]] = &output_used_inputs[i];
}
/* No anonymous attributes have to be propagated. */
Array<bke::AnonymousAttributeSet> attributes_to_propagate(
function.inputs.attributes_to_propagate.geometry_outputs.size());
for (const int i : attributes_to_propagate.index_range()) {
param_inputs[function.inputs.attributes_to_propagate.range[i]] = &attributes_to_propagate[i];
}
/* Prepare memory for output values. */
for (const int i : IndexRange(num_outputs)) {
const lf::Output &lf_output = lazy_function.outputs()[i];
const CPPType &type = *lf_output.type;
void *buffer = allocator.allocate(type.size(), type.alignment());
param_outputs[i] = {type, buffer};
}
nodes::GeoNodesLFLocalUserData local_user_data(user_data);
lf::Context lf_context(lazy_function.init_storage(allocator), &user_data, &local_user_data);
lf::BasicParams lf_params{lazy_function,
param_inputs,
param_outputs,
param_input_usages,
param_output_usages,
param_set_outputs};
lazy_function.execute(lf_params, lf_context);
lazy_function.destruct_storage(lf_context.storage);
for (GMutablePointer &ptr : inputs_to_destruct) {
ptr.destruct();
}
bke::GeometrySet output_geometry = std::move(*param_outputs[0].get<bke::GeometrySet>());
store_output_attributes(output_geometry, btree, properties, param_outputs);
for (const int i : IndexRange(num_outputs)) {
if (param_set_outputs[i]) {
GMutablePointer &ptr = param_outputs[i];
ptr.destruct();
}
}
return output_geometry;
}
void update_input_properties_from_node_tree(const bNodeTree &tree,
const IDProperty *old_properties,
const bool use_bool_for_use_attribute,
IDProperty &properties)
{
tree.ensure_interface_cache();
const Span<const bNodeTreeInterfaceSocket *> tree_inputs = tree.interface_inputs();
for (const int i : tree_inputs.index_range()) {
const bNodeTreeInterfaceSocket &socket = *tree_inputs[i];
const StringRefNull socket_identifier = socket.identifier;
const bNodeSocketType *typeinfo = socket.socket_typeinfo();
const eNodeSocketDatatype socket_type = typeinfo ? eNodeSocketDatatype(typeinfo->type) :
SOCK_CUSTOM;
IDProperty *new_prop = nodes::id_property_create_from_socket(socket).release();
if (new_prop == nullptr) {
/* Out of the set of supported input sockets, only
* geometry sockets aren't added to the modifier. */
BLI_assert(socket_type == SOCK_GEOMETRY);
continue;
}
new_prop->flag |= IDP_FLAG_OVERRIDABLE_LIBRARY;
if (socket.description && socket.description[0] != '\0') {
IDPropertyUIData *ui_data = IDP_ui_data_ensure(new_prop);
ui_data->description = BLI_strdup(socket.description);
}
IDP_AddToGroup(&properties, new_prop);
if (old_properties != nullptr) {
const IDProperty *old_prop = IDP_GetPropertyFromGroup(old_properties,
socket_identifier.c_str());
if (old_prop != nullptr) {
if (nodes::id_property_type_matches_socket(socket, *old_prop)) {
/* #IDP_CopyPropertyContent replaces the UI data as well, which we don't (we only
* want to replace the values). So release it temporarily and replace it after. */
IDPropertyUIData *ui_data = new_prop->ui_data;
new_prop->ui_data = nullptr;
IDP_CopyPropertyContent(new_prop, old_prop);
if (new_prop->ui_data != nullptr) {
IDP_ui_data_free(new_prop);
}
new_prop->ui_data = ui_data;
}
else if (old_prop->type == IDP_INT && new_prop->type == IDP_BOOLEAN) {
/* Support versioning from integer to boolean property values. The actual value is stored
* in the same variable for both types. */
new_prop->data.val = old_prop->data.val != 0;
}
}
}
if (nodes::socket_type_has_attribute_toggle(eNodeSocketDatatype(socket_type))) {
const std::string use_attribute_id = socket_identifier + input_use_attribute_suffix();
const std::string attribute_name_id = socket_identifier + input_attribute_name_suffix();
IDPropertyTemplate idprop = {0};
IDProperty *use_attribute_prop = IDP_New(
use_bool_for_use_attribute ? IDP_BOOLEAN : IDP_INT, &idprop, use_attribute_id.c_str());
IDP_AddToGroup(&properties, use_attribute_prop);
IDProperty *attribute_prop = IDP_New(IDP_STRING, &idprop, attribute_name_id.c_str());
IDP_AddToGroup(&properties, attribute_prop);
if (old_properties == nullptr) {
if (socket.default_attribute_name && socket.default_attribute_name[0] != '\0') {
IDP_AssignStringMaxSize(attribute_prop, socket.default_attribute_name, MAX_NAME);
IDP_Int(use_attribute_prop) = 1;
}
}
else {
IDProperty *old_prop_use_attribute = IDP_GetPropertyFromGroup(old_properties,
use_attribute_id.c_str());
if (old_prop_use_attribute != nullptr) {
IDP_CopyPropertyContent(use_attribute_prop, old_prop_use_attribute);
}
IDProperty *old_attribute_name_prop = IDP_GetPropertyFromGroup(old_properties,
attribute_name_id.c_str());
if (old_attribute_name_prop != nullptr) {
IDP_CopyPropertyContent(attribute_prop, old_attribute_name_prop);
}
}
}
}
}
void update_output_properties_from_node_tree(const bNodeTree &tree,
const IDProperty *old_properties,
IDProperty &properties)
{
tree.ensure_topology_cache();
const Span<const bNodeTreeInterfaceSocket *> tree_outputs = tree.interface_outputs();
for (const int i : tree_outputs.index_range()) {
const bNodeTreeInterfaceSocket &socket = *tree_outputs[i];
const StringRefNull socket_identifier = socket.identifier;
const bNodeSocketType *typeinfo = socket.socket_typeinfo();
const eNodeSocketDatatype socket_type = typeinfo ? eNodeSocketDatatype(typeinfo->type) :
SOCK_CUSTOM;
if (!nodes::socket_type_has_attribute_toggle(socket_type)) {
continue;
}
const std::string idprop_name = socket_identifier + input_attribute_name_suffix();
IDProperty *new_prop = IDP_NewStringMaxSize("", MAX_NAME, idprop_name.c_str());
if (socket.description && socket.description[0] != '\0') {
IDPropertyUIData *ui_data = IDP_ui_data_ensure(new_prop);
ui_data->description = BLI_strdup(socket.description);
}
IDP_AddToGroup(&properties, new_prop);
if (old_properties == nullptr) {
if (socket.default_attribute_name && socket.default_attribute_name[0] != '\0') {
IDP_AssignStringMaxSize(new_prop, socket.default_attribute_name, MAX_NAME);
}
}
else {
IDProperty *old_prop = IDP_GetPropertyFromGroup(old_properties, idprop_name.c_str());
if (old_prop != nullptr) {
/* #IDP_CopyPropertyContent replaces the UI data as well, which we don't (we only
* want to replace the values). So release it temporarily and replace it after. */
IDPropertyUIData *ui_data = new_prop->ui_data;
new_prop->ui_data = nullptr;
IDP_CopyPropertyContent(new_prop, old_prop);
if (new_prop->ui_data != nullptr) {
IDP_ui_data_free(new_prop);
}
new_prop->ui_data = ui_data;
}
}
}
}
} // namespace blender::nodes