Differential D12584 Diff 42231 source/blender/blenkernel/intern/node.cc

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source/blender/blenkernel/intern/node.cc

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#include "DNA_texture_types.h"		#include "DNA_texture_types.h"
#include "DNA_world_types.h"		#include "DNA_world_types.h"

#include "BLI_ghash.h"		#include "BLI_ghash.h"
#include "BLI_listbase.h"		#include "BLI_listbase.h"
#include "BLI_map.hh"		#include "BLI_map.hh"
#include "BLI_math.h"		#include "BLI_math.h"
#include "BLI_path_util.h"		#include "BLI_path_util.h"
		#include "BLI_set.hh"
		#include "BLI_stack.hh"
#include "BLI_string.h"		#include "BLI_string.h"
#include "BLI_string_utils.h"		#include "BLI_string_utils.h"
#include "BLI_utildefines.h"		#include "BLI_utildefines.h"
		#include "BLI_vector_set.hh"

#include "BLT_translation.h"		#include "BLT_translation.h"

#include "BKE_anim_data.h"		#include "BKE_anim_data.h"
#include "BKE_animsys.h"		#include "BKE_animsys.h"
#include "BKE_colortools.h"		#include "BKE_colortools.h"
#include "BKE_cryptomatte.h"		#include "BKE_cryptomatte.h"
#include "BKE_global.h"		#include "BKE_global.h"
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#include "RNA_access.h"		#include "RNA_access.h"
#include "RNA_define.h"		#include "RNA_define.h"

#include "NOD_common.h"		#include "NOD_common.h"
#include "NOD_composite.h"		#include "NOD_composite.h"
#include "NOD_function.h"		#include "NOD_function.h"
#include "NOD_geometry.h"		#include "NOD_geometry.h"
#include "NOD_node_declaration.hh"		#include "NOD_node_declaration.hh"
		#include "NOD_node_tree_ref.hh"
#include "NOD_shader.h"		#include "NOD_shader.h"
#include "NOD_socket.h"		#include "NOD_socket.h"
#include "NOD_texture.h"		#include "NOD_texture.h"

#include "DEG_depsgraph.h"		#include "DEG_depsgraph.h"
#include "DEG_depsgraph_build.h"		#include "DEG_depsgraph_build.h"

#include "BLO_read_write.h"		#include "BLO_read_write.h"

#include "MOD_nodes.h"		#include "MOD_nodes.h"

#define NODE_DEFAULT_MAX_WIDTH 700		#define NODE_DEFAULT_MAX_WIDTH 700

		using blender::Array;
		using blender::MutableSpan;
		using blender::Set;
		using blender::Span;
		using blender::Stack;
		using blender::Vector;
		using blender::VectorSet;
		using blender::nodes::InputSocketFieldType;
		using blender::nodes::OutputFieldDependency;
		using blender::nodes::OutputSocketFieldType;
		using blender::nodes::SocketDeclaration;
		using namespace blender::nodes::node_tree_ref_types;

/* Fallback types for undefined tree, nodes, sockets */		/* Fallback types for undefined tree, nodes, sockets */
static bNodeTreeType NodeTreeTypeUndefined;		static bNodeTreeType NodeTreeTypeUndefined;
bNodeType NodeTypeUndefined;		bNodeType NodeTypeUndefined;
bNodeSocketType NodeSocketTypeUndefined;		bNodeSocketType NodeSocketTypeUndefined;

static CLG_LogRef LOG = {"bke.node"};		static CLG_LogRef LOG = {"bke.node"};

static void ntree_set_typeinfo(bNodeTree ntree, bNodeTreeType typeinfo);		static void ntree_set_typeinfo(bNodeTree ntree, bNodeTreeType typeinfo);
static void node_socket_copy(bNodeSocket sock_dst, const bNodeSocket sock_src, const int flag);		static void node_socket_copy(bNodeSocket sock_dst, const bNodeSocket sock_src, const int flag);
static void free_localized_node_groups(bNodeTree *ntree);		static void free_localized_node_groups(bNodeTree *ntree);
static void node_free_node(bNodeTree ntree, bNode node);		static void node_free_node(bNodeTree ntree, bNode node);
static void node_socket_interface_free(bNodeTree *UNUSED(ntree),		static void node_socket_interface_free(bNodeTree *UNUSED(ntree),
bNodeSocket *sock,		bNodeSocket *sock,
const bool do_id_user);		const bool do_id_user);
static void nodeMuteRerouteOutputLinks(struct bNodeTree *ntree,		static void nodeMuteRerouteOutputLinks(struct bNodeTree *ntree,
struct bNode *node,		struct bNode *node,
const bool mute);		const bool mute);
		static FieldInferencingInterface *node_field_inferencing_interface_copy(
		const FieldInferencingInterface &field_inferencing_interface);
		static void node_field_inferencing_interface_free(
		const FieldInferencingInterface *field_inferencing_interface);

static void ntree_init_data(ID *id)		static void ntree_init_data(ID *id)
{		{
bNodeTree ntree = (bNodeTree )id;		bNodeTree ntree = (bNodeTree )id;
ntree_set_typeinfo(ntree, nullptr);		ntree_set_typeinfo(ntree, nullptr);
}		}

static void ntree_copy_data(Main UNUSED(bmain), ID id_dst, const ID *id_src, const int flag)		static void ntree_copy_data(Main UNUSED(bmain), ID id_dst, const ID *id_src, const int flag)
▲ Show 20 Lines • Show All 94 Lines • ▼ Show 20 Lines	if (node_dst->parent) {
new_pointers, node_dst->parent, nullptr);		new_pointers, node_dst->parent, nullptr);
}		}
}		}

BLI_ghash_free(new_pointers, nullptr, nullptr);		BLI_ghash_free(new_pointers, nullptr, nullptr);

/* node tree will generate its own interface type */		/* node tree will generate its own interface type */
ntree_dst->interface_type = nullptr;		ntree_dst->interface_type = nullptr;

		if (ntree_src->field_inferencing_interface) {
		ntree_dst->field_inferencing_interface = node_field_inferencing_interface_copy(
		*ntree_src->field_inferencing_interface);
		}
}		}

static void ntree_free_data(ID *id)		static void ntree_free_data(ID *id)
{		{
bNodeTree ntree = (bNodeTree )id;		bNodeTree ntree = (bNodeTree )id;

/* XXX hack! node trees should not store execution graphs at all.		/* XXX hack! node trees should not store execution graphs at all.
* This should be removed when old tree types no longer require it.		* This should be removed when old tree types no longer require it.
Show All 29 Lines	LISTBASE_FOREACH_MUTABLE (bNodeSocket *, sock, &ntree->inputs) {
node_socket_interface_free(ntree, sock, false);		node_socket_interface_free(ntree, sock, false);
MEM_freeN(sock);		MEM_freeN(sock);
}		}
LISTBASE_FOREACH_MUTABLE (bNodeSocket *, sock, &ntree->outputs) {		LISTBASE_FOREACH_MUTABLE (bNodeSocket *, sock, &ntree->outputs) {
node_socket_interface_free(ntree, sock, false);		node_socket_interface_free(ntree, sock, false);
MEM_freeN(sock);		MEM_freeN(sock);
}		}

		node_field_inferencing_interface_free(ntree->field_inferencing_interface);

/* free preview hash */		/* free preview hash */
if (ntree->previews) {		if (ntree->previews) {
BKE_node_instance_hash_free(ntree->previews, (bNodeInstanceValueFP)BKE_node_preview_free);		BKE_node_instance_hash_free(ntree->previews, (bNodeInstanceValueFP)BKE_node_preview_free);
}		}

if (ntree->id.tag & LIB_TAG_LOCALIZED) {		if (ntree->id.tag & LIB_TAG_LOCALIZED) {
BKE_libblock_free_data(&ntree->id, true);		BKE_libblock_free_data(&ntree->id, true);
}		}
▲ Show 20 Lines • Show All 366 Lines • ▼ Show 20 Lines	void ntreeBlendReadData(BlendDataReader reader, bNodeTree ntree)
ntree->init = 0; /* to set callbacks and force setting types */		ntree->init = 0; /* to set callbacks and force setting types */
ntree->is_updating = false;		ntree->is_updating = false;
ntree->typeinfo = nullptr;		ntree->typeinfo = nullptr;
ntree->interface_type = nullptr;		ntree->interface_type = nullptr;

ntree->progress = nullptr;		ntree->progress = nullptr;
ntree->execdata = nullptr;		ntree->execdata = nullptr;

		ntree->field_inferencing_interface = nullptr;

BLO_read_data_address(reader, &ntree->adt);		BLO_read_data_address(reader, &ntree->adt);
BKE_animdata_blend_read_data(reader, ntree->adt);		BKE_animdata_blend_read_data(reader, ntree->adt);

BLO_read_list(reader, &ntree->nodes);		BLO_read_list(reader, &ntree->nodes);
LISTBASE_FOREACH (bNode *, node, &ntree->nodes) {		LISTBASE_FOREACH (bNode *, node, &ntree->nodes) {
node->typeinfo = nullptr;		node->typeinfo = nullptr;
node->declaration = nullptr;		node->declaration = nullptr;

▲ Show 20 Lines • Show All 3,762 Lines • ▼ Show 20 Lines	if (owner_id->tag & LIB_TAG_NEW) {
}		}

ntreeUpdateTree(nullptr, ntree);		ntreeUpdateTree(nullptr, ntree);
}		}
}		}
FOREACH_NODETREE_END;		FOREACH_NODETREE_END;
}		}

void ntreeUpdateAllUsers(Main main, ID id)		/**
		* Information about how a node interacts with fields.
		*/
		struct FieldInferencingInterface {
		Vector<InputSocketFieldType> inputs;
		Vector<OutputFieldDependency> outputs;

		friend bool operator==(const FieldInferencingInterface &a, const FieldInferencingInterface &b)
		{
		return a.inputs == b.inputs && a.outputs == b.outputs;
		}

		friend bool operator!=(const FieldInferencingInterface &a, const FieldInferencingInterface &b)
		{
		return !(a == b);
		}
		};

		static FieldInferencingInterface *node_field_inferencing_interface_copy(
		HooglyBooglyUnsubmitted Done Inline Actions The idea is that it's cheaper to copy it than to recalculate it? Makes sense. HooglyBoogly: The idea is that it's cheaper to copy it than to recalculate it? Makes sense.
		const FieldInferencingInterface &field_inferencing_interface)
		{
		return new FieldInferencingInterface(field_inferencing_interface);
		}

		static void node_field_inferencing_interface_free(
		const FieldInferencingInterface *field_inferencing_interface)
		{
		delete field_inferencing_interface;
		}

		namespace blender::bke::node_field_inferencing {

		static bool is_field_socket_type(eNodeSocketDatatype type)
		{
		return ELEM(type, SOCK_FLOAT, SOCK_INT, SOCK_BOOLEAN, SOCK_VECTOR, SOCK_RGBA);
		}

		static bool is_field_socket_type(const SocketRef &socket)
		{
		return is_field_socket_type((eNodeSocketDatatype)socket.typeinfo()->type);
		}

		static bool update_field_inferencing(bNodeTree &btree);

		/**
		* Retrieves information about how the node interacts with fields.
		* In the future, this information can be stored in the node declaration. This would allow this
		* function to return a reference, making it more efficient.
		*/
		static FieldInferencingInterface get_node_field_inferencing_interface(const NodeRef &node)
		{
		const bNode &bnode = *node.bnode();
		nodeDeclarationEnsure(node.tree().btree(), node.bnode());

		/* Node groups already reference all required information, so just return that. */
		if (node.is_group_node()) {
		bNodeTree group = (bNodeTree )bnode.id;
		if (group == nullptr) {
		return FieldInferencingInterface();
		}
		if (group->field_inferencing_interface == nullptr) {
		/* Update group recursively. */
		update_field_inferencing(*group);
		}
		return *group->field_inferencing_interface;
		}

		auto get_input_field_type = [&](const InputSocketRef &socket) {
		if (!is_field_socket_type(socket)) {
		return InputSocketFieldType::None;
		}
		if (bnode.declaration != nullptr) {
		const SocketDeclaration &socket_decl = *bnode.declaration->inputs()[socket.index()];
		return socket_decl.input_field_type();
		}
		/* Handling of nodes that are not using socket declarations yet. */
		if (bnode.type == SH_NODE_TEX_NOISE && socket.index() == 0) {
		return InputSocketFieldType::Implicit;
		}
		return InputSocketFieldType::IsSupported;
		};

		FieldInferencingInterface inferencing_interface;
		for (const InputSocketRef *input_socket : node.inputs()) {
		inferencing_interface.inputs.append(get_input_field_type(*input_socket));
		}

		auto get_output_field_dependency = [&](const OutputSocketRef &socket) {
		if (!is_field_socket_type(socket)) {
		/* Non-field sockets always output data. */
		return OutputFieldDependency::ForDataSource();
		}
		if (bnode.declaration != nullptr) {
		/* Use the socket declaration. */
		const SocketDeclaration &socket_decl = *bnode.declaration->outputs()[socket.index()];
		return socket_decl.output_field_dependency();
		}

		/* Some nodes are not using socket declarations yet. For those we assume that outputs depend on
		* all inputs. This can be removed once all nodes use socket declarations. */
		Vector<int> indices;
		for (const int input_index : node.inputs().index_range()) {
		if (inferencing_interface.inputs[input_index] != InputSocketFieldType::None) {
		indices.append(input_index);
		}
		}
		return OutputFieldDependency::ForPartiallyDependentField(std::move(indices));
		};

		for (const OutputSocketRef *output_socket : node.outputs()) {
		inferencing_interface.outputs.append(get_output_field_dependency(*output_socket));
		}
		return inferencing_interface;
		}

		/**
		* This struct contains information for every socket. The values are propagated through the
		* network.
		*/
		struct SocketFieldState {
		/* This socket is currently a single value. It could become a field though. */
		bool is_single = true;
		/* This socket is required to be a single value. It must not be a field. */
		bool requires_single = false;
		/* This socket starts a new field. */
		bool is_field_source = false;
		};

		/**
		* Checks what the group output socket depends on. It traverses the node tree to figure out if it
		* is always a field or if it depends on any group inputs.
		*/
		static OutputFieldDependency find_group_output_dependencies(
		const InputSocketRef &group_output_socket,
		const Span<SocketFieldState> field_state_by_socket_id)
		{
		if (!is_field_socket_type(group_output_socket)) {
		return OutputFieldDependency::ForDataSource();
		}

		/* Use a Set here instead of an array indexed by socket id, because we my only need to look at
		* very few sockets. */
		Set<const InputSocketRef *> handled_sockets;
		Stack<const InputSocketRef *> sockets_to_check;

		handled_sockets.add(&group_output_socket);
		sockets_to_check.push(&group_output_socket);

		/* Keeps track of group input indices that are (indirectly) connected to the output. */
		Vector<int> linked_input_indices;

		while (!sockets_to_check.is_empty()) {
		const InputSocketRef *input_socket = sockets_to_check.pop();

		for (const OutputSocketRef *origin_socket : input_socket->logically_linked_sockets()) {
		const NodeRef &origin_node = origin_socket->node();
		const SocketFieldState &origin_state = field_state_by_socket_id[origin_socket->id()];

		if (origin_state.is_field_source) {
		if (origin_node.is_group_input_node()) {
		/* Found a group input that the group output depends on. */
		linked_input_indices.append_non_duplicates(origin_socket->index());
		}
		else {
		/* Found a field source that is not the group input. So the output is always a field. */
		return OutputFieldDependency::ForFieldSource();
		}
		}
		else if (!origin_state.is_single) {
		const FieldInferencingInterface inferencing_interface =
		get_node_field_inferencing_interface(origin_node);
		const OutputFieldDependency &field_dependency =
		inferencing_interface.outputs[origin_socket->index()];

		/* Propagate search further to the left. */
		for (const int input_index : field_dependency.linked_input_indices()) {
		const InputSocketRef &origin_input_socket = origin_node.input(input_index);
		if (!field_state_by_socket_id[origin_input_socket.id()].is_single) {
		if (handled_sockets.add(&origin_input_socket)) {
		sockets_to_check.push(&origin_input_socket);
		}
		}
		}
		}
		}
		}
		return OutputFieldDependency::ForPartiallyDependentField(std::move(linked_input_indices));
		}

		static void propagate_data_requirements_from_right_to_left(
		const NodeTreeRef &tree, const MutableSpan<SocketFieldState> field_state_by_socket_id)
		{
		const Vector<const NodeRef *> sorted_nodes = tree.toposort(
		NodeTreeRef::ToposortDirection::RightToLeft);

		for (const NodeRef *node : sorted_nodes) {
		FieldInferencingInterface inferencing_interface = get_node_field_inferencing_interface(*node);

		for (const OutputSocketRef *output_socket : node->outputs()) {
		SocketFieldState &state = field_state_by_socket_id[output_socket->id()];

		const OutputFieldDependency &field_dependency =
		inferencing_interface.outputs[output_socket->index()];

		if (field_dependency.field_type() == OutputSocketFieldType::FieldSource) {
		continue;
		}

		/* The output is required to be a single value when it is connected to any input that does
		* not support fields. */
		for (const InputSocketRef *target_socket : output_socket->directly_linked_sockets()) {
		state.requires_single \|= field_state_by_socket_id[target_socket->id()].requires_single;
		}

		if (field_dependency.field_type() == OutputSocketFieldType::None) {
		state.requires_single = true;
		}

		if (state.requires_single) {
		/* Find connected inputs. */
		Vector<const InputSocketRef *> connected_inputs;
		switch (field_dependency.field_type()) {
		case OutputSocketFieldType::None:
		case OutputSocketFieldType::FieldSource: {
		break;
		}
		case OutputSocketFieldType::DependentField: {
		connected_inputs.extend(node->inputs());
		break;
		}
		case OutputSocketFieldType::PartiallyDependent: {
		for (const int input_index : field_dependency.linked_input_indices()) {
		connected_inputs.append(&node->input(input_index));
		}
		break;
		}
		}

		bool any_input_is_field_implicitly = false;
		for (const InputSocketRef *input_socket : connected_inputs) {
		if (inferencing_interface.inputs[input_socket->index()] ==
		InputSocketFieldType::Implicit) {
		if (!input_socket->is_logically_linked()) {
		any_input_is_field_implicitly = true;
		break;
		}
		}
		}
		if (any_input_is_field_implicitly) {
		/* This output isn't a single value actually. */
		state.requires_single = false;
		}
		else {
		/* If the output is required to be a single value, the connected inputs in the same node
		* must not be fields as well. */
		for (const InputSocketRef *input_socket : connected_inputs) {
		field_state_by_socket_id[input_socket->id()].requires_single = true;
		}
		}
		}
		}

		/* Some inputs do not require fields independent of what the outputs are connected to. */
		for (const InputSocketRef *input_socket : node->inputs()) {
		SocketFieldState &state = field_state_by_socket_id[input_socket->id()];
		if (inferencing_interface.inputs[input_socket->index()] == InputSocketFieldType::None) {
		state.requires_single = true;
		}
		}
		}
		}

		static void determine_group_input_states(
		const NodeTreeRef &tree,
		FieldInferencingInterface &new_inferencing_interface,
		const MutableSpan<SocketFieldState> field_state_by_socket_id)
		{
		{
		/* Non-field inputs never support fields. */
		int index;
		LISTBASE_FOREACH_INDEX (bNodeSocket *, group_input, &tree.btree()->inputs, index) {
		if (!is_field_socket_type((eNodeSocketDatatype)group_input->type)) {
		new_inferencing_interface.inputs[index] = InputSocketFieldType::None;
		}
		}
		}
		/* Check if group inputs are required to be single values, because they are (indirectly)
		* connected to some socket that does not support fields. */
		for (const NodeRef *node : tree.nodes_by_type("NodeGroupInput")) {
		for (const OutputSocketRef *output_socket : node->outputs().drop_back(1)) {
		SocketFieldState &state = field_state_by_socket_id[output_socket->id()];
		if (state.requires_single) {
		new_inferencing_interface.inputs[output_socket->index()] = InputSocketFieldType::None;
		}
		}
		}
		/* If an input does not support fields, this should be reflected in all Group Input nodes. */
		for (const NodeRef *node : tree.nodes_by_type("NodeGroupInput")) {
		for (const OutputSocketRef *output_socket : node->outputs().drop_back(1)) {
		SocketFieldState &state = field_state_by_socket_id[output_socket->id()];
		const bool supports_field = new_inferencing_interface.inputs[output_socket->index()] !=
		InputSocketFieldType::None;
		if (supports_field) {
		state.is_single = false;
		state.is_field_source = true;
		}
		else {
		state.requires_single = true;
		}
		}
		SocketFieldState &dummy_socket_state = field_state_by_socket_id[node->outputs().last()->id()];
		dummy_socket_state.requires_single = true;
		}
		}

		static void propagate_field_status_from_left_to_right(
		const NodeTreeRef &tree, const MutableSpan<SocketFieldState> field_state_by_socket_id)
		{
		Vector<const NodeRef *> sorted_nodes = tree.toposort(
		NodeTreeRef::ToposortDirection::LeftToRight);

		for (const NodeRef *node : sorted_nodes) {
		if (node->is_group_input_node()) {
		continue;
		}

		FieldInferencingInterface inferencing_interface = get_node_field_inferencing_interface(*node);

		/* Update field state of input sockets, also taking into account linked origin sockets. */
		for (const InputSocketRef *input_socket : node->inputs()) {
		SocketFieldState &state = field_state_by_socket_id[input_socket->id()];
		if (state.requires_single) {
		state.is_single = true;
		continue;
		}
		state.is_single = true;
		for (const OutputSocketRef *origin_socket : input_socket->logically_linked_sockets()) {
		if (!field_state_by_socket_id[origin_socket->id()].is_single) {
		state.is_single = false;
		break;
		}
		}
		if (input_socket->logically_linked_sockets().is_empty()) {
		if (inferencing_interface.inputs[input_socket->index()] ==
		InputSocketFieldType::Implicit) {
		state.is_single = false;
		}
		}
		}

		/* Update field state of output sockets, also taking into account input sockets. */
		for (const OutputSocketRef *output_socket : node->outputs()) {
		SocketFieldState &state = field_state_by_socket_id[output_socket->id()];
		const OutputFieldDependency field_dependency =
		inferencing_interface.outputs[output_socket->index()];

		switch (field_dependency.field_type()) {
		case OutputSocketFieldType::None: {
		state.is_single = true;
		break;
		}
		case OutputSocketFieldType::FieldSource: {
		state.is_single = false;
		state.is_field_source = true;
		break;
		}
		case OutputSocketFieldType::DependentField: {
		for (const InputSocketRef *input_socket : node->inputs()) {
		if (!field_state_by_socket_id[input_socket->id()].is_single) {
		state.is_single = false;
		break;
		}
		}
		break;
		}
		case OutputSocketFieldType::PartiallyDependent: {
		for (const int input_index : field_dependency.linked_input_indices()) {
		const InputSocketRef &input_socket = node->input(input_index);
		if (!field_state_by_socket_id[input_socket.id()].is_single) {
		state.is_single = false;
		break;
		}
		}
		break;
		}
		}
		}
		}
		}

		static void determine_group_output_states(const NodeTreeRef &tree,
		FieldInferencingInterface &new_inferencing_interface,
		const Span<SocketFieldState> field_state_by_socket_id)
		{
		for (const NodeRef *group_output_node : tree.nodes_by_type("NodeGroupOutput")) {
		/* Ignore inactive group output nodes. */
		if (!(group_output_node->bnode()->flag & NODE_DO_OUTPUT)) {
		continue;
		}
		/* Determine dependencies of all group outputs. */
		for (const InputSocketRef *group_output_socket : group_output_node->inputs().drop_back(1)) {
		OutputFieldDependency field_dependency = find_group_output_dependencies(
		*group_output_socket, field_state_by_socket_id);
		new_inferencing_interface.outputs[group_output_socket->index()] = std::move(
		field_dependency);
		}
		break;
		}
		}

		static void update_socket_shapes(const NodeTreeRef &tree,
		const Span<SocketFieldState> field_state_by_socket_id)
		{
		const eNodeSocketDisplayShape data_shape = SOCK_DISPLAY_SHAPE_CIRCLE;
		const eNodeSocketDisplayShape currently_data_shape = SOCK_DISPLAY_SHAPE_CIRCLE_DOT;
		const eNodeSocketDisplayShape maybe_field_shape = SOCK_DISPLAY_SHAPE_DIAMOND;

		for (const InputSocketRef *socket : tree.input_sockets()) {
		bNodeSocket *bsocket = socket->bsocket();
		const SocketFieldState &state = field_state_by_socket_id[socket->id()];
		if (state.requires_single) {
		bsocket->display_shape = data_shape;
		}
		else if (state.is_single) {
		bsocket->display_shape = currently_data_shape;
		}
		else {
		bsocket->display_shape = maybe_field_shape;
		}
		}
		for (const OutputSocketRef *socket : tree.output_sockets()) {
		bNodeSocket *bsocket = socket->bsocket();
		const SocketFieldState &state = field_state_by_socket_id[socket->id()];
		if (state.requires_single) {
		bsocket->display_shape = data_shape;
		}
		else if (state.is_single) {
		bsocket->display_shape = currently_data_shape;
		}
		else {
		bsocket->display_shape = maybe_field_shape;
		}
		}
		}

		static bool update_field_inferencing(bNodeTree &btree)
		{
		using namespace blender::nodes;
		if (btree.type != NTREE_GEOMETRY) {
		return false;
		}

		/* Create new inferencing interface for this node group. */
		FieldInferencingInterface *new_inferencing_interface = new FieldInferencingInterface();
		new_inferencing_interface->inputs.resize(BLI_listbase_count(&btree.inputs),
		InputSocketFieldType::IsSupported);
		new_inferencing_interface->outputs.resize(BLI_listbase_count(&btree.outputs),
		OutputFieldDependency::ForDataSource());

		/* Create #NodeTreeRef to accelerate various queries on the node tree (e.g. linked sockets). */
		const NodeTreeRef tree{&btree};

		/* Keep track of the state of all sockets. The index into this array is #SocketRef::id(). */
		Array<SocketFieldState> field_state_by_socket_id(tree.sockets().size());

		propagate_data_requirements_from_right_to_left(tree, field_state_by_socket_id);
		determine_group_input_states(tree, *new_inferencing_interface, field_state_by_socket_id);
		propagate_field_status_from_left_to_right(tree, field_state_by_socket_id);
		determine_group_output_states(tree, *new_inferencing_interface, field_state_by_socket_id);
		update_socket_shapes(tree, field_state_by_socket_id);

		/* Update the previous group interface. */
		const bool group_interface_changed = btree.field_inferencing_interface == nullptr \|\|
		*btree.field_inferencing_interface !=
		*new_inferencing_interface;
		delete btree.field_inferencing_interface;
		btree.field_inferencing_interface = new_inferencing_interface;

		return group_interface_changed;
		}

		} // namespace blender::bke::node_field_inferencing

		void ntreeUpdateAllUsers(Main main, ID id, const int tree_update_flag)
{		{
if (id == nullptr) {		if (id == nullptr) {
return;		return;
}		}

/* Update all users of ngroup, to add/remove sockets as needed. */		/* Update all users of ngroup, to add/remove sockets as needed. */
FOREACH_NODETREE_BEGIN (main, ntree, owner_id) {		FOREACH_NODETREE_BEGIN (main, ntree, owner_id) {
bool need_update = false;		bool need_update = false;

LISTBASE_FOREACH (bNode *, node, &ntree->nodes) {		LISTBASE_FOREACH (bNode *, node, &ntree->nodes) {
if (node->id == id) {		if (node->id == id) {
if (node->typeinfo->group_update_func) {		if (node->typeinfo->group_update_func) {
node->typeinfo->group_update_func(ntree, node);		node->typeinfo->group_update_func(ntree, node);
}		}

need_update = true;		need_update = true;
		HooglyBooglyUnsubmitted Not Done Inline Actions Add a comment saying that this uses `eNodeTreeUpdate`. Eventually we could move that definition to `BKE_node.h` so it could be used directly. HooglyBoogly: Add a comment saying that this uses `eNodeTreeUpdate`. Eventually we could move that definition…
}		}
}		}

if (need_update) {		if (need_update) {
ntreeUpdateTree(nullptr, ntree);		ntree->update \|= tree_update_flag;
		ntreeUpdateTree(tree_update_flag ? main : nullptr, ntree);
}		}
}		}
FOREACH_NODETREE_END;		FOREACH_NODETREE_END;

if (GS(id->name) == ID_NT) {		if (GS(id->name) == ID_NT) {
bNodeTree ngroup = (bNodeTree )id;		bNodeTree ngroup = (bNodeTree )id;
if (ngroup->type == NTREE_GEOMETRY && (ngroup->update & NTREE_UPDATE_GROUP)) {		if (ngroup->type == NTREE_GEOMETRY && (ngroup->update & NTREE_UPDATE_GROUP)) {
LISTBASE_FOREACH (Object *, object, &main->objects) {		LISTBASE_FOREACH (Object *, object, &main->objects) {
▲ Show 20 Lines • Show All 45 Lines • ▼ Show 20 Lines	void ntreeUpdateTree(Main bmain, bNodeTree ntree)
}		}
/* XXX this should be moved into the tree type update callback for tree supporting node groups.		/* XXX this should be moved into the tree type update callback for tree supporting node groups.
* Currently the node tree interface is still a generic feature of the base NodeTree type.		* Currently the node tree interface is still a generic feature of the base NodeTree type.
*/		*/
if (ntree->update & NTREE_UPDATE_GROUP) {		if (ntree->update & NTREE_UPDATE_GROUP) {
ntreeInterfaceTypeUpdate(ntree);		ntreeInterfaceTypeUpdate(ntree);
}		}

		int tree_user_update_flag = 0;

		if (ntree->update & NTREE_UPDATE) {
		if (blender::bke::node_field_inferencing::update_field_inferencing(*ntree)) {
		tree_user_update_flag \|= NTREE_UPDATE_FIELD_INFERENCING;
		}
		}

if (bmain) {		if (bmain) {
ntreeUpdateAllUsers(bmain, &ntree->id);		ntreeUpdateAllUsers(bmain, &ntree->id, tree_user_update_flag);
}		}

if (ntree->update & (NTREE_UPDATE_LINKS \| NTREE_UPDATE_NODES)) {		if (ntree->update & (NTREE_UPDATE_LINKS \| NTREE_UPDATE_NODES)) {
/* node updates can change sockets or links, repeat link pointer update afterward */		/* node updates can change sockets or links, repeat link pointer update afterward */
ntree_update_link_pointers(ntree);		ntree_update_link_pointers(ntree);

/* update the node level from link dependencies */		/* update the node level from link dependencies */
ntree_update_node_level(ntree);		ntree_update_node_level(ntree);
▲ Show 20 Lines • Show All 894 Lines • Show Last 20 Lines