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/* SPDX-License-Identifier: GPL-2.0-or-later
* Copyright 2011 Blender Foundation. */
#pragma once
#include "BKE_global.h"
#include "BLI_rect.h"
#include "COM_MultiThreadedOperation.h"
#include "DNA_color_types.h"
#include "DNA_image_types.h"
namespace blender::compositor {
class PreviewOperation : public MultiThreadedOperation {
protected:
unsigned char *output_buffer_;
/**
* \brief holds reference to the SDNA bNode, where this nodes will render the preview image for
*/
bNodePreview *preview_;
SocketReader *input_;
float divider_;
unsigned int default_width_;
unsigned int default_height_;
const ColorManagedViewSettings *view_settings_;
const ColorManagedDisplaySettings *display_settings_;
public:
PreviewOperation(const ColorManagedViewSettings *view_settings,
const ColorManagedDisplaySettings *display_settings,
unsigned int default_width,
unsigned int default_height);
void verify_preview(bNodeInstanceHash *previews, bNodeInstanceKey key);
bool is_output_operation(bool /*rendering*/) const override
{
return !G.background;
}
void init_execution() override;
void deinit_execution() override;
eCompositorPriority get_render_priority() const override;
void execute_region(rcti *rect, unsigned int tile_number) override;
void determine_canvas(const rcti &preferred_area, rcti &r_area) override;
bool determine_depending_area_of_interest(rcti *input,
ReadBufferOperation *read_operation,
rcti *output) override;
void get_area_of_interest(int input_idx, const rcti &output_area, rcti &r_input_area) override;
void update_memory_buffer_partial(MemoryBuffer *output,
const rcti &area,
Span<MemoryBuffer *> inputs) override;
};
} // namespace blender::compositor
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