3 "#line 1 \"libavfilter/opencl/neighbor.cl\"\n" 5 " * Copyright (c) 2018 Danil Iashchenko\n" 7 " * This file is part of FFmpeg.\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" 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" 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" 25 "__kernel void erosion_global(__write_only image2d_t dst,\n" 26 " __read_only image2d_t src,\n" 28 " __constant int *coord)\n" 30 " const sampler_t sampler = (CLK_NORMALIZED_COORDS_FALSE |\n" 31 " CLK_ADDRESS_CLAMP_TO_EDGE |\n" 32 " CLK_FILTER_NEAREST);\n" 34 " int2 loc = (int2)(get_global_id(0), get_global_id(1));\n" 36 " float4 px = read_imagef(src, sampler, loc);\n" 37 " float limit = px.x - threshold;\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" 52 " if (limit > px.x) {\n" 53 " px = (float4)(limit);\n" 55 " write_imagef(dst, loc, px);\n" 59 "__kernel void dilation_global(__write_only image2d_t dst,\n" 60 " __read_only image2d_t src,\n" 62 " __constant int *coord)\n" 64 " const sampler_t sampler = (CLK_NORMALIZED_COORDS_FALSE |\n" 65 " CLK_ADDRESS_CLAMP_TO_EDGE |\n" 66 " CLK_FILTER_NEAREST);\n" 68 " int2 loc = (int2)(get_global_id(0), get_global_id(1));\n" 70 " float4 px = read_imagef(src, sampler, loc);\n" 71 " float limit = px.x + threshold;\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" 86 " if (limit < px.x) {\n" 87 " px = (float4)(limit);\n" 89 " write_imagef(dst, loc, px);\n" const char * ff_opencl_source_neighbor