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
83
84
85
86
87
88
|
/* SPDX-License-Identifier: GPL-2.0-or-later
* Copyright 2011 Blender Foundation. */
#include "COM_HueSaturationValueCorrectOperation.h"
#include "BLI_math_vector.h"
#include "BKE_colortools.h"
namespace blender::compositor {
HueSaturationValueCorrectOperation::HueSaturationValueCorrectOperation()
{
this->add_input_socket(DataType::Color);
this->add_output_socket(DataType::Color);
input_program_ = nullptr;
}
void HueSaturationValueCorrectOperation::init_execution()
{
CurveBaseOperation::init_execution();
input_program_ = this->get_input_socket_reader(0);
}
void HueSaturationValueCorrectOperation::execute_pixel_sampled(float output[4],
float x,
float y,
PixelSampler sampler)
{
float hsv[4], f;
input_program_->read_sampled(hsv, x, y, sampler);
/* adjust hue, scaling returned default 0.5 up to 1 */
f = BKE_curvemapping_evaluateF(curve_mapping_, 0, hsv[0]);
hsv[0] += f - 0.5f;
/* adjust saturation, scaling returned default 0.5 up to 1 */
f = BKE_curvemapping_evaluateF(curve_mapping_, 1, hsv[0]);
hsv[1] *= (f * 2.0f);
/* adjust value, scaling returned default 0.5 up to 1 */
f = BKE_curvemapping_evaluateF(curve_mapping_, 2, hsv[0]);
hsv[2] *= (f * 2.0f);
hsv[0] = hsv[0] - floorf(hsv[0]); /* mod 1.0 */
CLAMP(hsv[1], 0.0f, 1.0f);
output[0] = hsv[0];
output[1] = hsv[1];
output[2] = hsv[2];
output[3] = hsv[3];
}
void HueSaturationValueCorrectOperation::deinit_execution()
{
CurveBaseOperation::deinit_execution();
input_program_ = nullptr;
}
void HueSaturationValueCorrectOperation::update_memory_buffer_partial(MemoryBuffer *output,
const rcti &area,
Span<MemoryBuffer *> inputs)
{
float hsv[4];
for (BuffersIterator<float> it = output->iterate_with(inputs, area); !it.is_end(); ++it) {
copy_v4_v4(hsv, it.in(0));
/* Adjust hue, scaling returned default 0.5 up to 1. */
float f = BKE_curvemapping_evaluateF(curve_mapping_, 0, hsv[0]);
hsv[0] += f - 0.5f;
/* Adjust saturation, scaling returned default 0.5 up to 1. */
f = BKE_curvemapping_evaluateF(curve_mapping_, 1, hsv[0]);
hsv[1] *= (f * 2.0f);
/* Adjust value, scaling returned default 0.5 up to 1. */
f = BKE_curvemapping_evaluateF(curve_mapping_, 2, hsv[0]);
hsv[2] *= (f * 2.0f);
hsv[0] = hsv[0] - floorf(hsv[0]); /* Mod 1.0. */
CLAMP(hsv[1], 0.0f, 1.0f);
copy_v4_v4(it.out, hsv);
}
}
} // namespace blender::compositor
|
