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
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
|
/*
* Copyright 2011, Blender Foundation.
*
* 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.
*
* Contributor:
* Jeroen Bakker
* Monique Dewanchand
*/
#include "COM_ProjectorLensDistortionOperation.h"
#include "BLI_math.h"
#include "BLI_utildefines.h"
ProjectorLensDistortionOperation::ProjectorLensDistortionOperation() : NodeOperation()
{
this->addInputSocket(COM_DT_COLOR);
this->addInputSocket(COM_DT_VALUE);
this->addOutputSocket(COM_DT_COLOR);
this->setComplex(true);
this->m_inputProgram = NULL;
this->m_dispersionAvailable = false;
this->m_dispersion = 0.0f;
}
void ProjectorLensDistortionOperation::initExecution()
{
this->initMutex();
this->m_inputProgram = this->getInputSocketReader(0);
}
void *ProjectorLensDistortionOperation::initializeTileData(rcti *rect)
{
updateDispersion();
void *buffer = this->m_inputProgram->initializeTileData(NULL);
return buffer;
}
void ProjectorLensDistortionOperation::executePixel(float output[4], int x, int y, void *data)
{
float inputValue[4];
const float height = this->getHeight();
const float width = this->getWidth();
const float v = (y + 0.5f) / height;
const float u = (x + 0.5f) / width;
MemoryBuffer *inputBuffer = (MemoryBuffer *)data;
inputBuffer->readBilinear(inputValue, (u * width + this->m_kr2) - 0.5f, v * height - 0.5f);
output[0] = inputValue[0];
inputBuffer->read(inputValue, x, y);
output[1] = inputValue[1];
inputBuffer->readBilinear(inputValue, (u * width - this->m_kr2) - 0.5f, v * height - 0.5f);
output[2] = inputValue[2];
output[3] = 1.0f;
}
void ProjectorLensDistortionOperation::deinitExecution()
{
this->deinitMutex();
this->m_inputProgram = NULL;
}
bool ProjectorLensDistortionOperation::determineDependingAreaOfInterest(rcti *input, ReadBufferOperation *readOperation, rcti *output)
{
rcti newInput;
if (this->m_dispersionAvailable) {
newInput.ymax = input->ymax;
newInput.ymin = input->ymin;
newInput.xmin = input->xmin - this->m_kr2 - 2;
newInput.xmax = input->xmax + this->m_kr2 + 2;
}
else {
rcti dispInput;
BLI_rcti_init(&dispInput, 0, 5, 0, 5);
if (this->getInputOperation(1)->determineDependingAreaOfInterest(&dispInput, readOperation, output)) {
return true;
}
newInput.xmin = input->xmin - 7; /* (0.25f * 20 * 1) + 2 == worse case dispersion */
newInput.ymin = input->ymin;
newInput.ymax = input->ymax;
newInput.xmax = input->xmax + 7; /* (0.25f * 20 * 1) + 2 == worse case dispersion */
}
if (this->getInputOperation(0)->determineDependingAreaOfInterest(&newInput, readOperation, output)) {
return true;
}
return false;
}
void ProjectorLensDistortionOperation::updateDispersion()
{
if (this->m_dispersionAvailable) return;
this->lockMutex();
if (!this->m_dispersionAvailable) {
float result[4];
this->getInputSocketReader(1)->readSampled(result, 1, 1, COM_PS_NEAREST);
this->m_dispersion = result[0];
this->m_kr = 0.25f * max_ff(min_ff(this->m_dispersion, 1.0f), 0.0f);
this->m_kr2 = this->m_kr * 20;
this->m_dispersionAvailable = true;
}
this->unlockMutex();
}
|
