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/* SPDX-License-Identifier: GPL-2.0-or-later
* Copyright 2021 Blender Foundation. */
#pragma once
#include "COM_defines.h"
namespace blender::compositor {
class NodeOperation;
class NodeOperationBuilder;
class ConstantOperation;
class MemoryBuffer;
/**
* Evaluates all operations with constant elements into primitive constant operations
* (Value/Vector/Color).
*/
class ConstantFolder {
private:
NodeOperationBuilder &operations_builder_;
/** Constant operations buffers. */
Map<ConstantOperation *, MemoryBuffer *> constant_buffers_;
rcti max_area_;
rcti first_elem_area_;
public:
/**
* \param operations_builder: Contains all operations to fold.
* \param exec_system: Execution system.
*/
ConstantFolder(NodeOperationBuilder &operations_builder);
/**
* Evaluate operations with constant elements into primitive constant operations.
*/
int fold_operations();
private:
/** Returns constant operations resulted from folded operations. */
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
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