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/* SPDX-License-Identifier: GPL-2.0-or-later
* Copyright 2021 Blender Foundation. */
#pragma once
#include "COM_NodeOperation.h"
namespace blender::compositor {
/* TODO(manzanilla): After removing tiled implementation, implement a default #determine_resolution
* for all constant operations and make all initialization and deinitilization methods final. */
/**
* Base class for operations that are always constant. Operations that can be constant only when
* all their inputs are so, are evaluated into primitive constants (Color/Vector/Value) during
* constant folding.
*/
class ConstantOperation : public NodeOperation {
protected:
bool needs_canvas_to_get_constant_;
public:
ConstantOperation();
/** May require resolution to be already determined. */
virtual const float *get_constant_elem() = 0;
bool can_get_constant_elem() const;
void update_memory_buffer(MemoryBuffer *output,
const rcti &area,
Span<MemoryBuffer *> inputs) final;
};
} // namespace blender::compositor
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