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
113
114
115
116
117
118
119
120
121
122
123
124
125
|
/*
* 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_GaussianYBlurOperation.h"
#include "BLI_math.h"
extern "C" {
#include "RE_pipeline.h"
}
GaussianYBlurOperation::GaussianYBlurOperation(): BlurBaseOperation() {
this->gausstab = NULL;
this->rad = 0;
}
void* GaussianYBlurOperation::initializeTileData(rcti *rect, MemoryBuffer **memoryBuffers) {
updateGauss(memoryBuffers);
void* buffer = getInputOperation(0)->initializeTileData(NULL, memoryBuffers);
return buffer;
}
void GaussianYBlurOperation::updateGauss(MemoryBuffer **memoryBuffers) {
if (this->gausstab == NULL) {
updateSize(memoryBuffers);
float rad = size*this->data->sizey;
if(rad<1)
rad= 1;
this->rad = rad;
this->gausstab = BlurBaseOperation::make_gausstab(rad);
}
}
void GaussianYBlurOperation::executePixel(float* color, int x, int y, MemoryBuffer *inputBuffers[], void *data) {
float tempColor[4];
tempColor[0] = 0;
tempColor[1] = 0;
tempColor[2] = 0;
tempColor[3] = 0;
float overallmultiplyer = 0;
MemoryBuffer* inputBuffer = (MemoryBuffer*)data;
float* buffer = inputBuffer->getBuffer();
int bufferwidth = inputBuffer->getWidth();
int bufferstartx = inputBuffer->getRect()->xmin;
int bufferstarty = inputBuffer->getRect()->ymin;
int miny = y - this->rad;
int maxy = y + this->rad;
int minx = x;
int maxx = x;
miny = max(miny, inputBuffer->getRect()->ymin);
minx = max(minx, inputBuffer->getRect()->xmin);
maxy = min(maxy, inputBuffer->getRect()->ymax);
maxx = min(maxx, inputBuffer->getRect()->xmax);
int step = getStep();
int index = 0;
for (int ny = miny ; ny < maxy ; ny +=step) {
int bufferindex = ((minx - bufferstartx)*4)+((ny-bufferstarty)*4*bufferwidth);
float multiplyer = gausstab[index++];
tempColor[0] += multiplyer * buffer[bufferindex];
tempColor[1] += multiplyer * buffer[bufferindex+1];
tempColor[2] += multiplyer * buffer[bufferindex+2];
tempColor[3] += multiplyer * buffer[bufferindex+3];
overallmultiplyer += multiplyer;
}
float divider = 1.0/overallmultiplyer;
color[0] = tempColor[0]*divider;
color[1] = tempColor[1]*divider;
color[2] = tempColor[2]*divider;
color[3] = tempColor[3]*divider;
}
void GaussianYBlurOperation::deinitExecution() {
BlurBaseOperation::deinitExecution();
delete this->gausstab;
this->gausstab = NULL;
}
bool GaussianYBlurOperation::determineDependingAreaOfInterest(rcti *input, ReadBufferOperation *readOperation, rcti *output) {
rcti newInput;
rcti sizeInput;
sizeInput.xmin = 0;
sizeInput.ymin = 0;
sizeInput.xmax = 5;
sizeInput.ymax = 5;
NodeOperation * operation = this->getInputOperation(1);
if (operation->determineDependingAreaOfInterest(&sizeInput, readOperation, output)) {
return true;
}else {
if (this->gausstab == NULL) {
newInput.xmax = this->getWidth();
newInput.xmin = 0;
newInput.ymax = this->getHeight();
newInput.ymin = 0;
} else {
newInput.xmax = input->xmax;
newInput.xmin = input->xmin;
newInput.ymax = input->ymax + rad;
newInput.ymin = input->ymin - rad;
}
return NodeOperation::determineDependingAreaOfInterest(&newInput, readOperation, output);
}
}
|
