diff options
Diffstat (limited to 'source/blender/nodes/intern/node_tree_ref.cc')
| -rw-r--r-- | source/blender/nodes/intern/node_tree_ref.cc | 177 |
1 files changed, 177 insertions, 0 deletions
diff --git a/source/blender/nodes/intern/node_tree_ref.cc b/source/blender/nodes/intern/node_tree_ref.cc new file mode 100644 index 00000000000..47669bc5ca2 --- /dev/null +++ b/source/blender/nodes/intern/node_tree_ref.cc @@ -0,0 +1,177 @@ +/* + * 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 "NOD_node_tree_ref.hh" + +#include "BLI_dot_export.hh" + +namespace blender::nodes { + +NodeTreeRef::NodeTreeRef(bNodeTree *btree) : btree_(btree) +{ + Map<bNode *, NodeRef *> node_mapping; + + LISTBASE_FOREACH (bNode *, bnode, &btree->nodes) { + NodeRef &node = *allocator_.construct<NodeRef>(); + + node.tree_ = this; + node.bnode_ = bnode; + node.id_ = nodes_by_id_.append_and_get_index(&node); + RNA_pointer_create(&btree->id, &RNA_Node, bnode, &node.rna_); + + LISTBASE_FOREACH (bNodeSocket *, bsocket, &bnode->inputs) { + InputSocketRef &socket = *allocator_.construct<InputSocketRef>(); + socket.node_ = &node; + socket.index_ = node.inputs_.append_and_get_index(&socket); + socket.is_input_ = true; + socket.bsocket_ = bsocket; + socket.id_ = sockets_by_id_.append_and_get_index(&socket); + RNA_pointer_create(&btree->id, &RNA_NodeSocket, bsocket, &socket.rna_); + } + + LISTBASE_FOREACH (bNodeSocket *, bsocket, &bnode->outputs) { + OutputSocketRef &socket = *allocator_.construct<OutputSocketRef>(); + socket.node_ = &node; + socket.index_ = node.outputs_.append_and_get_index(&socket); + socket.is_input_ = false; + socket.bsocket_ = bsocket; + socket.id_ = sockets_by_id_.append_and_get_index(&socket); + RNA_pointer_create(&btree->id, &RNA_NodeSocket, bsocket, &socket.rna_); + } + + input_sockets_.extend(node.inputs_.as_span()); + output_sockets_.extend(node.outputs_.as_span()); + + node_mapping.add_new(bnode, &node); + } + + LISTBASE_FOREACH (bNodeLink *, blink, &btree->links) { + OutputSocketRef &from_socket = this->find_output_socket( + node_mapping, blink->fromnode, blink->fromsock); + InputSocketRef &to_socket = this->find_input_socket( + node_mapping, blink->tonode, blink->tosock); + + from_socket.directly_linked_sockets_.append(&to_socket); + to_socket.directly_linked_sockets_.append(&from_socket); + } + + for (OutputSocketRef *socket : output_sockets_) { + if (!socket->node_->is_reroute_node()) { + this->find_targets_skipping_reroutes(*socket, socket->linked_sockets_); + for (SocketRef *target : socket->linked_sockets_) { + target->linked_sockets_.append(socket); + } + } + } + + for (NodeRef *node : nodes_by_id_) { + const bNodeType *nodetype = node->bnode_->typeinfo; + nodes_by_type_.add(nodetype, node); + } +} + +NodeTreeRef::~NodeTreeRef() +{ + for (NodeRef *node : nodes_by_id_) { + node->~NodeRef(); + } + for (InputSocketRef *socket : input_sockets_) { + socket->~InputSocketRef(); + } + for (OutputSocketRef *socket : output_sockets_) { + socket->~OutputSocketRef(); + } +} + +InputSocketRef &NodeTreeRef::find_input_socket(Map<bNode *, NodeRef *> &node_mapping, + bNode *bnode, + bNodeSocket *bsocket) +{ + NodeRef *node = node_mapping.lookup(bnode); + for (SocketRef *socket : node->inputs_) { + if (socket->bsocket_ == bsocket) { + return *(InputSocketRef *)socket; + } + } + BLI_assert(false); + return *node->inputs_[0]; +} + +OutputSocketRef &NodeTreeRef::find_output_socket(Map<bNode *, NodeRef *> &node_mapping, + bNode *bnode, + bNodeSocket *bsocket) +{ + NodeRef *node = node_mapping.lookup(bnode); + for (SocketRef *socket : node->outputs_) { + if (socket->bsocket_ == bsocket) { + return *(OutputSocketRef *)socket; + } + } + BLI_assert(false); + return *node->outputs_[0]; +} + +void NodeTreeRef::find_targets_skipping_reroutes(OutputSocketRef &socket, + Vector<SocketRef *> &r_targets) +{ + for (SocketRef *direct_target : socket.directly_linked_sockets_) { + if (direct_target->node_->is_reroute_node()) { + this->find_targets_skipping_reroutes(*direct_target->node_->outputs_[0], r_targets); + } + else { + r_targets.append_non_duplicates(direct_target); + } + } +} + +std::string NodeTreeRef::to_dot() const +{ + dot::DirectedGraph digraph; + digraph.set_rankdir(dot::Attr_rankdir::LeftToRight); + + Map<const NodeRef *, dot::NodeWithSocketsRef> dot_nodes; + + for (const NodeRef *node : nodes_by_id_) { + dot::Node &dot_node = digraph.new_node(""); + dot_node.set_background_color("white"); + + Vector<std::string> input_names; + Vector<std::string> output_names; + for (const InputSocketRef *socket : node->inputs()) { + input_names.append(socket->name()); + } + for (const OutputSocketRef *socket : node->outputs()) { + output_names.append(socket->name()); + } + + dot_nodes.add_new(node, + dot::NodeWithSocketsRef(dot_node, node->name(), input_names, output_names)); + } + + for (const OutputSocketRef *from_socket : output_sockets_) { + for (const InputSocketRef *to_socket : from_socket->directly_linked_sockets()) { + dot::NodeWithSocketsRef &from_dot_node = dot_nodes.lookup(&from_socket->node()); + dot::NodeWithSocketsRef &to_dot_node = dot_nodes.lookup(&to_socket->node()); + + digraph.new_edge(from_dot_node.output(from_socket->index()), + to_dot_node.input(to_socket->index())); + } + } + + return digraph.to_dot_string(); +} + +} // namespace blender::nodes |