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/* SPDX-License-Identifier: GPL-2.0-or-later
* Copyright 2011 Blender Foundation. */
#pragma once
#include "COM_MultiThreadedOperation.h"
namespace blender::compositor {
class MapUVOperation : public MultiThreadedOperation {
private:
static constexpr int IMAGE_INPUT_INDEX = 0;
static constexpr int UV_INPUT_INDEX = 1;
/**
* Cached reference to the input_program
*/
SocketReader *inputUVProgram_;
SocketReader *input_color_program_;
int uv_width_;
int uv_height_;
int image_width_;
int image_height_;
float alpha_;
std::function<void(float x, float y, float *out)> uv_input_read_fn_;
public:
MapUVOperation();
/**
* we need a 3x3 differential filter for UV Input and full buffer for the image
*/
bool determine_depending_area_of_interest(rcti *input,
ReadBufferOperation *read_operation,
rcti *output) override;
/**
* The inner loop of this operation.
*/
void execute_pixel_sampled(float output[4], float x, float y, PixelSampler sampler) override;
void pixel_transform(const float xy[2], float r_uv[2], float r_deriv[2][2], float &r_alpha);
void init_data() override;
/**
* Initialize the execution
*/
void init_execution() override;
/**
* Deinitialize the execution
*/
void deinit_execution() override;
void set_alpha(float alpha)
{
alpha_ = alpha;
}
void get_area_of_interest(int input_idx, const rcti &output_area, rcti &r_input_area) override;
void update_memory_buffer_started(MemoryBuffer *output,
const rcti &area,
Span<MemoryBuffer *> inputs) override;
void update_memory_buffer_partial(MemoryBuffer *output,
const rcti &area,
Span<MemoryBuffer *> inputs) override;
private:
bool read_uv(float x, float y, float &r_u, float &r_v, float &r_alpha);
};
} // namespace blender::compositor
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