1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
|
/*
* 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 DisplaceOperation : public MultiThreadedOperation {
private:
/**
* Cached reference to the input_program
*/
SocketReader *input_color_program_;
float width_x4_;
float height_x4_;
int input_vector_width_;
int input_vector_height_;
std::function<void(float x, float y, float *out)> vector_read_fn_;
std::function<void(float x, float y, float *out)> scale_x_read_fn_;
std::function<void(float x, float y, float *out)> scale_y_read_fn_;
public:
DisplaceOperation();
/**
* we need a 2x2 differential filter for Vector 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]);
/**
* Initialize the execution
*/
void init_execution() override;
/**
* Deinitialize the execution
*/
void deinit_execution() override;
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_displacement(
float x, float y, float xscale, float yscale, const float origin[2], float &r_u, float &r_v);
};
} // namespace blender::compositor
|
