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
126
127
|
/*
* 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_ReadBufferOperation.h"
#include "COM_WriteBufferOperation.h"
#include "COM_defines.h"
ReadBufferOperation::ReadBufferOperation(DataType datatype) : NodeOperation()
{
this->addOutputSocket(datatype);
this->m_single_value = false;
this->m_offset = 0;
this->m_buffer = NULL;
}
void *ReadBufferOperation::initializeTileData(rcti * /*rect*/)
{
return m_buffer;
}
void ReadBufferOperation::determineResolution(unsigned int resolution[2], unsigned int preferredResolution[2])
{
if (this->m_memoryProxy != NULL) {
WriteBufferOperation *operation = this->m_memoryProxy->getWriteBufferOperation();
operation->determineResolution(resolution, preferredResolution);
operation->setResolution(resolution);
/// @todo: may not occur!, but does with blur node
if (this->m_memoryProxy->getExecutor()) {
this->m_memoryProxy->getExecutor()->setResolution(resolution);
}
m_single_value = operation->isSingleValue();
}
}
void ReadBufferOperation::executePixelSampled(float output[4], float x, float y, PixelSampler sampler)
{
if (m_single_value) {
/* write buffer has a single value stored at (0,0) */
m_buffer->read(output, 0, 0);
}
else {
switch (sampler) {
case COM_PS_NEAREST:
m_buffer->read(output, x, y);
break;
case COM_PS_BILINEAR:
default:
m_buffer->readBilinear(output, x, y);
break;
case COM_PS_BICUBIC:
m_buffer->readBilinear(output, x, y);
break;
}
}
}
void ReadBufferOperation::executePixelExtend(float output[4], float x, float y, PixelSampler sampler,
MemoryBufferExtend extend_x, MemoryBufferExtend extend_y)
{
if (m_single_value) {
/* write buffer has a single value stored at (0,0) */
m_buffer->read(output, 0, 0);
}
else if (sampler == COM_PS_NEAREST) {
m_buffer->read(output, x, y, extend_x, extend_y);
}
else {
m_buffer->readBilinear(output, x, y, extend_x, extend_y);
}
}
void ReadBufferOperation::executePixelFiltered(float output[4], float x, float y, float dx[2], float dy[2], PixelSampler sampler)
{
if (m_single_value) {
/* write buffer has a single value stored at (0,0) */
m_buffer->read(output, 0, 0);
}
else {
const float uv[2] = { x, y };
const float deriv[2][2] = { {dx[0], dx[1]}, {dy[0], dy[1]} };
m_buffer->readEWA(output, uv, deriv, sampler);
}
}
bool ReadBufferOperation::determineDependingAreaOfInterest(rcti *input, ReadBufferOperation *readOperation, rcti *output)
{
if (this == readOperation) {
BLI_rcti_init(output, input->xmin, input->xmax, input->ymin, input->ymax);
return true;
}
return false;
}
void ReadBufferOperation::readResolutionFromWriteBuffer()
{
if (this->m_memoryProxy != NULL) {
WriteBufferOperation *operation = this->m_memoryProxy->getWriteBufferOperation();
this->setWidth(operation->getWidth());
this->setHeight(operation->getHeight());
}
}
void ReadBufferOperation::updateMemoryBuffer()
{
this->m_buffer = this->getMemoryProxy()->getBuffer();
}
|
