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/*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* Copyright 2021, Blender Foundation.
*/
#pragma once
#include "COM_MultiThreadedOperation.h"
namespace blender::compositor {
class TransformOperation : public MultiThreadedOperation {
private:
constexpr static int IMAGE_INPUT_INDEX = 0;
constexpr static int X_INPUT_INDEX = 1;
constexpr static int Y_INPUT_INDEX = 2;
constexpr static int DEGREE_INPUT_INDEX = 3;
constexpr static int SCALE_INPUT_INDEX = 4;
float scale_center_x_;
float scale_center_y_;
float rotate_center_x_;
float rotate_center_y_;
float rotate_cosine_;
float rotate_sine_;
float translate_x_;
float translate_y_;
float constant_scale_;
/* Set variables. */
PixelSampler sampler_;
bool convert_degree_to_rad_;
float translate_factor_x_;
float translate_factor_y_;
bool invert_;
public:
TransformOperation();
void set_translate_factor_xy(float x, float y)
{
translate_factor_x_ = x;
translate_factor_y_ = y;
}
void set_convert_rotate_degree_to_rad(bool value)
{
convert_degree_to_rad_ = value;
}
void set_sampler(PixelSampler sampler)
{
sampler_ = sampler;
}
void set_invert(bool value)
{
invert_ = value;
}
void init_data() 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;
private:
/** Translate -> Rotate -> Scale. */
void transform(BuffersIterator<float> &it, const MemoryBuffer *input_img);
/** Scale -> Rotate -> Translate. */
void transform_inverted(BuffersIterator<float> &it, const MemoryBuffer *input_img);
};
} // namespace blender::compositor
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