Lukas Tönne
005dabbd9a
This issue is because of a somewhat "special" behavior in old code, which got lost during rB09874df: There was a variant of the `relinkConnections` function which would leave the socket completely unconnected. This is not a valid state really (given that each unconnected input must otherwise connected to a constant `Set` type node), but was used as a way to distinguish connected alpha/depth sockets in composite and viewer output nodes. https://developer.blender.org/diffusion/B/browse/master/source/blender/compositor/intern/COM_InputSocket.cpp;28a829893c702918afc5ac1945a06eaefa611594$69 After the large cleanup patch ({D309}) every socket is now automatically connected to a constant, such that `getInputSocketReader` will never return a NULL pointer. This breaks the previous test method, which needs to be replaced by more explicit flags. Luckily this was done only for very few output nodes (Composite, Viewer, Output-File). These now use the regular SetValueOperation default in case "use alpha" is disabled, but set this to an explicit 1.0 value instead of mapping to the node socket.
115 lines
4.0 KiB
C++
115 lines
4.0 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_NodeCompiler_h
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#define _COM_NodeCompiler_h
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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 NodeInput;
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class NodeOutput;
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class NodeOperation;
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class NodeOperationInput;
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class NodeOperationOutput;
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class NodeOperationBuilder;
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/** Interface type for converting a \a Node into \a NodeOperation.
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* This is passed to \a Node::convertToOperation methods and allows them
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* to register any number of operations, create links between them,
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* and map original node sockets to their inputs or outputs.
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*/
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class NodeConverter {
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public:
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NodeConverter(NodeOperationBuilder *builder);
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/** Insert a new operation into the operations graph.
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* The operation must be created by the node.
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*/
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void addOperation(NodeOperation *operation);
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/** Map input socket of the node to an operation socket.
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* Links between nodes will then generate equivalent links between
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* the mapped operation sockets.
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*
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* \note A \a Node input can be mapped to multiple \a NodeOperation inputs.
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*/
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void mapInputSocket(NodeInput *node_socket, NodeOperationInput *operation_socket);
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/** Map output socket of the node to an operation socket.
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* Links between nodes will then generate equivalent links between
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* the mapped operation sockets.
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*
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* \note A \a Node output can only be mapped to one \a NodeOperation output.
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* Any existing operation output mapping will be replaced.
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*/
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void mapOutputSocket(NodeOutput *node_socket, NodeOperationOutput *operation_socket);
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/** Create a proxy operation for a node input.
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* This operation will be removed later and replaced
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* by direct links between the connected operations.
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*/
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NodeOperationOutput *addInputProxy(NodeInput *input);
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/** Create a proxy operation for a node output.
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* This operation will be removed later and replaced
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* by direct links between the connected operations.
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*/
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NodeOperationInput *addOutputProxy(NodeOutput *output);
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/** Define a constant input value. */
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void addInputValue(NodeOperationInput *input, float value);
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/** Define a constant input color. */
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void addInputColor(NodeOperationInput *input, const float value[4]);
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/** Define a constant input vector. */
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void addInputVector(NodeOperationInput *input, const float value[3]);
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/** Define a constant output value. */
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void addOutputValue(NodeOutput *output, float value);
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/** Define a constant output color. */
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void addOutputColor(NodeOutput *output, const float value[4]);
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/** Define a constant output vector. */
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void addOutputVector(NodeOutput *output, const float value[3]);
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/** Add an explicit link between two operations. */
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void addLink(NodeOperationOutput *from, NodeOperationInput *to);
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/** Add a preview operation for a operation output. */
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void addPreview(NodeOperationOutput *output);
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/** Add a preview operation for a node input. */
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void addNodeInputPreview(NodeInput *input);
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/** When a node has no valid data
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* @note missing image / group pointer, or missing renderlayer from EXR
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*/
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NodeOperation *setInvalidOutput(NodeOutput *output);
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private:
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/** The internal builder for storing the results of the graph construction. */
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NodeOperationBuilder *m_builder;
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#ifdef WITH_CXX_GUARDEDALLOC
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MEM_CXX_CLASS_ALLOC_FUNCS("COM:NodeCompiler")
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#endif
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};
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#endif /* _COM_NodeCompiler_h */
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