Lukas Tönne
34ca8fe82a
A node group can have multiple input nodes. In the compositor that means each of the input sockets has to be connected to the linked outputs, which is represented by a single link on the outside of the group.
117 lines
3.6 KiB
C++
117 lines
3.6 KiB
C++
/*
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* Copyright 2013, Blender Foundation.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* Contributor:
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* Lukas Toenne
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*/
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#ifndef _COM_NodeGraph_h
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#define _COM_NodeGraph_h
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#include <map>
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#include <set>
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#include <vector>
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extern "C" {
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#include "DNA_node_types.h"
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}
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#ifdef WITH_CXX_GUARDEDALLOC
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# include "MEM_guardedalloc.h"
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#endif
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class CompositorContext;
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class Node;
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class NodeInput;
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class NodeOutput;
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/** Internal representation of DNA node data.
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* This structure is converted into operations by \a NodeCompiler.
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*/
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class NodeGraph {
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public:
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class Link {
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private:
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NodeOutput *m_from;
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NodeInput *m_to;
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public:
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Link(NodeOutput *from, NodeInput *to) :
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m_from(from),
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m_to(to)
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{}
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NodeOutput *getFromSocket() const { return m_from; }
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NodeInput *getToSocket() const { return m_to; }
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};
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typedef std::vector<Node *> Nodes;
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typedef Nodes::iterator NodeIterator;
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typedef std::vector<Link> Links;
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private:
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Nodes m_nodes;
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Links m_links;
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public:
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NodeGraph();
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~NodeGraph();
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const Nodes &nodes() const { return m_nodes; }
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const Links &links() const { return m_links; }
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void from_bNodeTree(const CompositorContext &context, bNodeTree *tree);
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protected:
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typedef std::pair<NodeIterator, NodeIterator> NodeRange;
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typedef std::vector<NodeInput *> NodeInputs;
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static bNodeSocket *find_b_node_input(bNode *b_node, const char *identifier);
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static bNodeSocket *find_b_node_output(bNode *b_node, const char *identifier);
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void add_node(Node *node, bNodeTree *b_ntree, bNodeInstanceKey key, bool is_active_group);
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void add_link(NodeOutput *fromSocket, NodeInput *toSocket);
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void add_bNodeTree(const CompositorContext &context, int nodes_start, bNodeTree *tree, bNodeInstanceKey parent_key);
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void add_bNode(const CompositorContext &context, bNodeTree *b_ntree, bNode *b_node, bNodeInstanceKey key, bool is_active_group);
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NodeInputs find_inputs(const NodeRange &node_range, bNodeSocket *b_socket);
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NodeOutput *find_output(const NodeRange &node_range, bNodeSocket *b_socket);
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void add_bNodeLink(const NodeRange &node_range, bNodeLink *bNodeLink);
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/* **** Special proxy node type conversions **** */
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/* These nodes are not represented in the node graph themselves,
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* but converted into a number of proxy links
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*/
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void add_proxies_mute(bNodeTree *b_ntree, bNode *b_node, bNodeInstanceKey key, bool is_active_group);
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void add_proxies_skip(bNodeTree *b_ntree, bNode *b_node, bNodeInstanceKey key, bool is_active_group);
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void add_proxies_group_inputs(bNode *b_node, bNode *b_node_io);
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void add_proxies_group_outputs(bNode *b_node, bNode *b_node_io, bool use_buffer);
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void add_proxies_group(const CompositorContext &context, bNode *b_node, bNodeInstanceKey key);
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void add_proxies_reroute(bNodeTree *b_ntree, bNode *b_node, bNodeInstanceKey key, bool is_active_group);
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#ifdef WITH_CXX_GUARDEDALLOC
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MEM_CXX_CLASS_ALLOC_FUNCS("COM:NodeGraph")
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#endif
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};
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#endif /* _COM_NodeGraph_h */
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