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
89
90
91
92
93
|
/*
* 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.
*/
#include "COM_GlareThresholdOperation.h"
#include "IMB_colormanagement.h"
namespace blender::compositor {
GlareThresholdOperation::GlareThresholdOperation()
{
this->addInputSocket(DataType::Color, ResizeMode::FitAny);
this->addOutputSocket(DataType::Color);
inputProgram_ = nullptr;
}
void GlareThresholdOperation::determine_canvas(const rcti &preferred_area, rcti &r_area)
{
NodeOperation::determine_canvas(preferred_area, r_area);
const int width = BLI_rcti_size_x(&r_area) / (1 << settings_->quality);
const int height = BLI_rcti_size_y(&r_area) / (1 << settings_->quality);
r_area.xmax = r_area.xmin + width;
r_area.ymax = r_area.ymin + height;
}
void GlareThresholdOperation::initExecution()
{
inputProgram_ = this->getInputSocketReader(0);
}
void GlareThresholdOperation::executePixelSampled(float output[4],
float x,
float y,
PixelSampler sampler)
{
const float threshold = settings_->threshold;
inputProgram_->readSampled(output, x, y, sampler);
if (IMB_colormanagement_get_luminance(output) >= threshold) {
output[0] -= threshold;
output[1] -= threshold;
output[2] -= threshold;
output[0] = MAX2(output[0], 0.0f);
output[1] = MAX2(output[1], 0.0f);
output[2] = MAX2(output[2], 0.0f);
}
else {
zero_v3(output);
}
}
void GlareThresholdOperation::deinitExecution()
{
inputProgram_ = nullptr;
}
void GlareThresholdOperation::update_memory_buffer_partial(MemoryBuffer *output,
const rcti &area,
Span<MemoryBuffer *> inputs)
{
const float threshold = settings_->threshold;
for (BuffersIterator<float> it = output->iterate_with(inputs, area); !it.is_end(); ++it) {
const float *color = it.in(0);
if (IMB_colormanagement_get_luminance(color) >= threshold) {
it.out[0] = color[0] - threshold;
it.out[1] = color[1] - threshold;
it.out[2] = color[2] - threshold;
CLAMP3_MIN(it.out, 0.0f);
}
else {
zero_v3(it.out);
}
}
}
} // namespace blender::compositor
|