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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 2011, Blender Foundation.
*/
#pragma once
#include "COM_MultiThreadedOperation.h"
namespace blender::compositor {
class RotateOperation : public MultiThreadedOperation {
private:
constexpr static int IMAGE_INPUT_INDEX = 0;
constexpr static int DEGREE_INPUT_INDEX = 1;
SocketReader *image_socket_;
SocketReader *degree_socket_;
/* TODO(manzanilla): to be removed with tiled implementation. */
float center_x_;
float center_y_;
float cosine_;
float sine_;
bool do_degree2_rad_conversion_;
bool is_degree_set_;
PixelSampler sampler_;
public:
RotateOperation();
static void rotate_coords(
float &x, float &y, float center_x, float center_y, float sine, float cosine)
{
const float dx = x - center_x;
const float dy = y - center_y;
x = center_x + (cosine * dx + sine * dy);
y = center_y + (-sine * dx + cosine * dy);
}
static void get_rotation_center(const rcti &area, float &r_x, float &r_y);
static void get_rotation_offset(const rcti &input_canvas,
const rcti &rotate_canvas,
float &r_offset_x,
float &r_offset_y);
static void get_area_rotation_bounds(
const rcti &area, float center_x, float center_y, float sine, float cosine, rcti &r_bounds);
static void get_area_rotation_bounds_inverted(
const rcti &area, float center_x, float center_y, float sine, float cosine, rcti &r_bounds);
static void get_rotation_area_of_interest(const rcti &input_canvas,
const rcti &rotate_canvas,
float sine,
float cosine,
const rcti &output_area,
rcti &r_input_area);
static void get_rotation_canvas(const rcti &input_canvas,
float sine,
float cosine,
rcti &r_canvas);
bool determine_depending_area_of_interest(rcti *input,
ReadBufferOperation *read_operation,
rcti *output) override;
void execute_pixel_sampled(float output[4], float x, float y, PixelSampler sampler) override;
void init_data() override;
void init_execution() override;
void deinit_execution() override;
void set_do_degree2_rad_conversion(bool abool)
{
do_degree2_rad_conversion_ = abool;
}
void set_sampler(PixelSampler sampler)
{
sampler_ = sampler;
}
void ensure_degree();
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;
void determine_canvas(const rcti &preferred_area, rcti &r_area) override;
};
} // namespace blender::compositor
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