69 lines
2.1 KiB
C++
69 lines
2.1 KiB
C++
/*
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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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* Copyright 2021, Blender Foundation.
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*/
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#pragma once
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#include "COM_defines.h"
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namespace blender::compositor {
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class NodeOperation;
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class NodeOperationBuilder;
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class ConstantOperation;
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class MemoryBuffer;
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/**
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* Evaluates all operations with constant elements into primitive constant operations
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* (Value/Vector/Color).
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*/
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class ConstantFolder {
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private:
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NodeOperationBuilder &operations_builder_;
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/** Constant operations buffers. */
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Map<ConstantOperation *, MemoryBuffer *> constant_buffers_;
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rcti max_area_;
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rcti first_elem_area_;
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public:
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/**
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* \param operations_builder: Contains all operations to fold.
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* \param exec_system: Execution system.
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*/
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ConstantFolder(NodeOperationBuilder &operations_builder);
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/**
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* Evaluate operations with constant elements into primitive constant operations.
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*/
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int fold_operations();
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private:
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/** Returns constant operations resulted from folded operations. */
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Vector<ConstantOperation *> try_fold_operations(Span<NodeOperation *> operations);
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ConstantOperation *fold_operation(NodeOperation *operation);
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MemoryBuffer *create_constant_buffer(DataType data_type);
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Vector<MemoryBuffer *> get_constant_input_buffers(NodeOperation *operation);
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void delete_constant_buffers();
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void get_operation_output_operations(NodeOperation *operation,
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Vector<NodeOperation *> &r_outputs);
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};
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} // namespace blender::compositor
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