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
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
// License Agreement
// For Open Source Computer Vision Library
//
// Copyright (C) 2010-2012, Institute Of Software Chinese Academy Of Science, all rights reserved.
// Copyright (C) 2010-2012, Advanced Micro Devices, Inc., all rights reserved.
// Third party copyrights are property of their respective owners.
//
// @Authors
// Niko Li, newlife20080214@gmail.com
// Zero Lin, zero.lin@amd.com
// Yao Wang, bitwangyaoyao@gmail.com
// Redistribution and use in source and binary forms, with or without modification,
// are permitted provided that the following conditions are met:
//
// * Redistribution's of source code must retain the above copyright notice,
// this list of conditions and the following disclaimer.
//
// * Redistribution's in binary form must reproduce the above copyright notice,
// this list of conditions and the following disclaimer in the documentation
// and/or other materials provided with the distribution.
//
// * The name of the copyright holders may not be used to endorse or promote products
// derived from this software without specific prior written permission.
//
// This software is provided by the copyright holders and contributors as is and
// any express or implied warranties, including, but not limited to, the implied
// warranties of merchantability and fitness for a particular purpose are disclaimed.
// In no event shall the Intel Corporation or contributors be liable for any direct,
// indirect, incidental, special, exemplary, or consequential damages
// (including, but not limited to, procurement of substitute goods or services;
// loss of use, data, or profits; or business interruption) however caused
// and on any theory of liability, whether in contract, strict liability,
// or tort (including negligence or otherwise) arising in any way out of
// the use of this software, even if advised of the possibility of such damage.
//
//
#ifdef DOUBLE_SUPPORT
#ifdef cl_amd_fp64
#pragma OPENCL EXTENSION cl_amd_fp64:enable
#elif defined (cl_khr_fp64)
#pragma OPENCL EXTENSION cl_khr_fp64:enable
#endif
#endif
#define noconvert
#if cn != 3
#define loadpix(addr) *(__global const T *)(addr)
#define storepix(val, addr) *(__global T *)(addr) = val
#define TSIZE (int)sizeof(T)
#else
#define loadpix(addr) vload3(0, (__global const T1 *)(addr))
#define storepix(val, addr) vstore3(val, 0, (__global T1 *)(addr))
#define TSIZE ((int)sizeof(T1)*3)
#endif
#ifdef DEPTH_0
#define MIN_VAL 0
#define MAX_VAL UCHAR_MAX
#elif defined DEPTH_1
#define MIN_VAL SCHAR_MIN
#define MAX_VAL SCHAR_MAX
#elif defined DEPTH_2
#define MIN_VAL 0
#define MAX_VAL USHRT_MAX
#elif defined DEPTH_3
#define MIN_VAL SHRT_MIN
#define MAX_VAL SHRT_MAX
#elif defined DEPTH_4
#define MIN_VAL INT_MIN
#define MAX_VAL INT_MAX
#elif defined DEPTH_5
#define MIN_VAL (-FLT_MAX)
#define MAX_VAL FLT_MAX
#elif defined DEPTH_6
#define MIN_VAL (-DBL_MAX)
#define MAX_VAL DBL_MAX
#endif
#ifdef OP_ERODE
#define VAL MAX_VAL
#elif defined OP_DILATE
#define VAL MIN_VAL
#else
#error "Unknown operation"
#endif
#ifdef OP_ERODE
#if defined INTEL_DEVICE && defined DEPTH_0
#define MORPH_OP(A, B) ((A) < (B) ? (A) : (B))
#else
#define MORPH_OP(A, B) min((A), (B))
#endif
#endif
#ifdef OP_DILATE
#define MORPH_OP(A, B) max((A), (B))
#endif
#define PROCESS(y, x) \
temp = LDS_DAT[mad24(l_y + y, width, l_x + x)]; \
res = MORPH_OP(res, temp);
// BORDER_CONSTANT: iiiiii|abcdefgh|iiiiiii
#define ELEM(i, l_edge, r_edge, elem1, elem2) (i) < (l_edge) | (i) >= (r_edge) ? (elem1) : (elem2)
#if defined OP_GRADIENT || defined OP_TOPHAT || defined OP_BLACKHAT
#define EXTRA_PARAMS , __global const uchar * matptr, int mat_step, int mat_offset
#else
#define EXTRA_PARAMS
#endif
__kernel void morph(__global const uchar * srcptr, int src_step, int src_offset,
__global uchar * dstptr, int dst_step, int dst_offset,
int src_offset_x, int src_offset_y, int cols, int rows,
int src_whole_cols, int src_whole_rows EXTRA_PARAMS)
{
int gidx = get_global_id(0), gidy = get_global_id(1);
int l_x = get_local_id(0), l_y = get_local_id(1);
int x = get_group_id(0) * LSIZE0, y = get_group_id(1) * LSIZE1;
int start_x = x + src_offset_x - RADIUSX;
int width = mad24(RADIUSX, 2, LSIZE0 + 1);
int start_y = y + src_offset_y - RADIUSY;
int point1 = mad24(l_y, LSIZE0, l_x);
int point2 = point1 + LSIZE0 * LSIZE1;
int tl_x = point1 % width, tl_y = point1 / width;
int tl_x2 = point2 % width, tl_y2 = point2 / width;
int cur_x = start_x + tl_x, cur_y = start_y + tl_y;
int cur_x2 = start_x + tl_x2, cur_y2 = start_y + tl_y2;
int start_addr = mad24(cur_y, src_step, cur_x * TSIZE);
int start_addr2 = mad24(cur_y2, src_step, cur_x2 * TSIZE);
__local T LDS_DAT[2 * LSIZE1 * LSIZE0];
// read pixels from src
int end_addr = mad24(src_whole_rows - 1, src_step, src_whole_cols * TSIZE);
start_addr = start_addr < end_addr && start_addr > 0 ? start_addr : 0;
start_addr2 = start_addr2 < end_addr && start_addr2 > 0 ? start_addr2 : 0;
T temp0 = loadpix(srcptr + start_addr);
T temp1 = loadpix(srcptr + start_addr2);
// judge if read out of boundary
temp0 = ELEM(cur_x, 0, src_whole_cols, (T)(VAL), temp0);
temp0 = ELEM(cur_y, 0, src_whole_rows, (T)(VAL), temp0);
temp1 = ELEM(cur_x2, 0, src_whole_cols, (T)(VAL), temp1);
temp1 = ELEM(cur_y2, 0, src_whole_rows, (T)(VAL), temp1);
LDS_DAT[point1] = temp0;
LDS_DAT[point2] = temp1;
barrier(CLK_LOCAL_MEM_FENCE);
if (gidx < cols && gidy < rows)
{
T res = (T)(VAL), temp;
PROCESS_ELEMS;
int dst_index = mad24(gidy, dst_step, mad24(gidx, TSIZE, dst_offset));
#if defined OP_GRADIENT || defined OP_TOPHAT || defined OP_BLACKHAT
int mat_index = mad24(gidy, mat_step, mad24(gidx, TSIZE, mat_offset));
T value = loadpix(matptr + mat_index);
#ifdef OP_GRADIENT
storepix(convertToT(convertToWT(res) - convertToWT(value)), dstptr + dst_index);
#elif defined OP_TOPHAT
storepix(convertToT(convertToWT(value) - convertToWT(res)), dstptr + dst_index);
#elif defined OP_BLACKHAT
storepix(convertToT(convertToWT(res) - convertToWT(value)), dstptr + dst_index);
#endif
#else // erode or dilate
storepix(res, dstptr + dst_index);
#endif
}
}