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
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
|
/*=========================================================================
*
* Copyright UMC Utrecht and contributors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0.txt
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*=========================================================================*/
//
// \author Denis P. Shamonin and Marius Staring. Division of Image Processing,
// Department of Radiology, Leiden, The Netherlands
//
// \note This work was funded by the Netherlands Organisation for
// Scientific Research (NWO NRG-2010.02 and NWO 639.021.124).
//
// OpenCL implementation of itk::ImageFunction
//------------------------------------------------------------------------------
// Definition of GPUFunction 1D/2D/3D
typedef struct {
int start_index;
int end_index;
float start_continuous_index;
float end_continuous_index;
} GPUImageFunction1D;
typedef struct {
int2 start_index;
int2 end_index;
float2 start_continuous_index;
float2 end_continuous_index;
} GPUImageFunction2D;
typedef struct {
int3 start_index;
int3 end_index;
float3 start_continuous_index;
float3 end_continuous_index;
} GPUImageFunction3D;
//------------------------------------------------------------------------------
#ifdef DIM_1
bool interpolator_is_inside_buffer_1d(
const float cindex,
const float start_continuous_index,
const float end_continuous_index )
{
if( !( cindex >= start_continuous_index
&& cindex < end_continuous_index ) )
{
return false;
}
return true;
}
#endif // DIM_1
//------------------------------------------------------------------------------
#ifdef DIM_2
bool interpolator_is_inside_buffer_2d(
const float2 cindex,
const float2 start_continuous_index,
const float2 end_continuous_index )
{
if( !( cindex.x >= start_continuous_index.x
&& cindex.x < end_continuous_index.x ) )
{
return false;
}
if( !( cindex.y >= start_continuous_index.y
&& cindex.y < end_continuous_index.y ) )
{
return false;
}
return true;
}
#endif // DIM_2
//------------------------------------------------------------------------------
#ifdef DIM_3
bool interpolator_is_inside_buffer_3d(
const float3 cindex,
const float3 start_continuous_index,
const float3 end_continuous_index )
{
if( !( cindex.x >= start_continuous_index.x
&& cindex.x < end_continuous_index.x ) )
{
return false;
}
if( !( cindex.y >= start_continuous_index.y
&& cindex.y < end_continuous_index.y ) )
{
return false;
}
if( !( cindex.z >= start_continuous_index.z
&& cindex.z < end_continuous_index.z ) )
{
return false;
}
return true;
}
#endif // DIM_3
//------------------------------------------------------------------------------
// OpenCL 1D implementation of
// itkImageFunction::ConvertContinuousIndexToNearestIndex()
#ifdef DIM_1
uint convert_continuous_index_to_nearest_index_1d( const float cindex )
{
return round( cindex );
}
#endif // DIM_1
//------------------------------------------------------------------------------
// OpenCL 2D implementation of
// itkImageFunction::ConvertContinuousIndexToNearestIndex()
#ifdef DIM_2
uint2 convert_continuous_index_to_nearest_index_2d( const float2 cindex )
{
uint2 index;
index.x = round( cindex.x );
index.y = round( cindex.y );
return index;
}
#endif // DIM_2
//------------------------------------------------------------------------------
// OpenCL 3D implementation of
// itkImageFunction::ConvertContinuousIndexToNearestIndex()
#ifdef DIM_3
uint3 convert_continuous_index_to_nearest_index_3d( const float3 cindex )
{
uint3 index;
index.x = round( cindex.x );
index.y = round( cindex.y );
index.z = round( cindex.z );
return index;
}
#endif // DIM_3
|
