COM_ConstantFolder.h

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/* SPDX-FileCopyrightText: 2021 Blender Authors
 *
 * SPDX-License-Identifier: GPL-2.0-or-later */
 
#pragma once
 
#include "COM_defines.h"
 
namespace blender::compositor {
 
class NodeOperation;
class NodeOperationBuilder;
class ConstantOperation;
class MemoryBuffer;
 
class ConstantFolder {
 private:
  NodeOperationBuilder &operations_builder_;
 
  Map<ConstantOperation *, MemoryBuffer *> constant_buffers_;
 
  rcti max_area_;
  rcti first_elem_area_;
 
 public:
  ConstantFolder(NodeOperationBuilder &operations_builder);
  int fold_operations();
 
 private:
  Vector<ConstantOperation *> try_fold_operations(Span<NodeOperation *> operations);
  ConstantOperation *fold_operation(NodeOperation *operation);
 
  MemoryBuffer *create_constant_buffer(DataType data_type);
  Vector<MemoryBuffer *> get_constant_input_buffers(NodeOperation *operation);
  void delete_constant_buffers();
 
  void get_operation_output_operations(NodeOperation *operation,
                                       Vector<NodeOperation *> &r_outputs);
};
 
}  // namespace blender::compositor