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/* SPDX-License-Identifier: GPL-2.0-or-later
* Copyright 2021 Blender Foundation. */
#pragma once
#include "BLI_array.h"
#include "COM_MultiThreadedOperation.h"
namespace blender::compositor {
/**
* Executes buffer updates per row. To be inherited only by operations with correlated coordinates
* between inputs and output.
*/
class MultiThreadedRowOperation : public MultiThreadedOperation {
protected:
struct PixelCursor {
float *out;
int out_stride;
const float *row_end;
Array<const float *> ins;
Array<int> in_strides;
public:
PixelCursor(int num_inputs);
void next()
{
BLI_assert(out < row_end);
out += out_stride;
for (int i = 0; i < ins.size(); i++) {
ins[i] += in_strides[i];
}
}
};
protected:
virtual void update_memory_buffer_row(PixelCursor &p) = 0;
private:
void update_memory_buffer_partial(MemoryBuffer *output,
const rcti &area,
Span<MemoryBuffer *> inputs) final;
};
} // namespace blender::compositor
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