FFmpeg  4.1.5
neighbor.c
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1 // Generated from libavfilter/opencl/neighbor.cl
3 "#line 1 \"libavfilter/opencl/neighbor.cl\"\n"
4 "/*\n"
5 " * Copyright (c) 2018 Danil Iashchenko\n"
6 " *\n"
7 " * This file is part of FFmpeg.\n"
8 " *\n"
9 " * FFmpeg is free software; you can redistribute it and/or\n"
10 " * modify it under the terms of the GNU Lesser General Public\n"
11 " * License as published by the Free Software Foundation; either\n"
12 " * version 2.1 of the License, or (at your option) any later version.\n"
13 " *\n"
14 " * FFmpeg is distributed in the hope that it will be useful,\n"
15 " * but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
16 " * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU\n"
17 " * Lesser General Public License for more details.\n"
18 " *\n"
19 " * You should have received a copy of the GNU Lesser General Public\n"
20 " * License along with FFmpeg; if not, write to the Free Software\n"
21 " * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA\n"
22 " */\n"
23 "\n"
24 "\n"
25 "__kernel void erosion_global(__write_only image2d_t dst,\n"
26 " __read_only image2d_t src,\n"
27 " float threshold,\n"
28 " __constant int *coord)\n"
29 "{\n"
30 " const sampler_t sampler = (CLK_NORMALIZED_COORDS_FALSE |\n"
31 " CLK_ADDRESS_CLAMP_TO_EDGE |\n"
32 " CLK_FILTER_NEAREST);\n"
33 "\n"
34 " int2 loc = (int2)(get_global_id(0), get_global_id(1));\n"
35 "\n"
36 " float4 px = read_imagef(src, sampler, loc);\n"
37 " float limit = px.x - threshold;\n"
38 " if (limit < 0) {\n"
39 " limit = 0;\n"
40 " }\n"
41 "\n"
42 " for (int i = -1; i <= 1; i++) {\n"
43 " for (int j = -1; j <= 1; j++) {\n"
44 " if (coord[(j + 1) * 3 + (i + 1)] == 1) {\n"
45 " float4 cur = read_imagef(src, sampler, loc + (int2)(i, j));\n"
46 " if (cur.x < px.x) {\n"
47 " px = cur;\n"
48 " }\n"
49 " }\n"
50 " }\n"
51 " }\n"
52 " if (limit > px.x) {\n"
53 " px = (float4)(limit);\n"
54 " }\n"
55 " write_imagef(dst, loc, px);\n"
56 "}\n"
57 "\n"
58 "\n"
59 "__kernel void dilation_global(__write_only image2d_t dst,\n"
60 " __read_only image2d_t src,\n"
61 " float threshold,\n"
62 " __constant int *coord)\n"
63 "{\n"
64 " const sampler_t sampler = (CLK_NORMALIZED_COORDS_FALSE |\n"
65 " CLK_ADDRESS_CLAMP_TO_EDGE |\n"
66 " CLK_FILTER_NEAREST);\n"
67 "\n"
68 " int2 loc = (int2)(get_global_id(0), get_global_id(1));\n"
69 "\n"
70 " float4 px = read_imagef(src, sampler, loc);\n"
71 " float limit = px.x + threshold;\n"
72 " if (limit > 1) {\n"
73 " limit = 1;\n"
74 " }\n"
75 "\n"
76 " for (int i = -1; i <= 1; i++) {\n"
77 " for (int j = -1; j <= 1; j++) {\n"
78 " if (coord[(j + 1) * 3 + (i + 1)] == 1) {\n"
79 " float4 cur = read_imagef(src, sampler, loc + (int2)(i, j));\n"
80 " if (cur.x > px.x) {\n"
81 " px = cur;\n"
82 " }\n"
83 " }\n"
84 " }\n"
85 " }\n"
86 " if (limit < px.x) {\n"
87 " px = (float4)(limit);\n"
88 " }\n"
89 " write_imagef(dst, loc, px);\n"
90 "}\n"
91 ;
const char * ff_opencl_source_neighbor
Definition: neighbor.c:2