1 // License Agreement 2 // For Open Source Computer Vision Library 3 // 4 // Copyright (C) 2010-2012, Institute Of Software Chinese Academy Of Science, all rights reserved. 5 // Copyright (C) 2010-2012, Advanced Micro Devices, Inc., all rights reserved. 6 // Third party copyrights are property of their respective owners. 7 // 8 // @Authors 9 // Niko Li, newlife20080214 (a] gmail.com 10 // Zero Lin, zero.lin (a] amd.com 11 // Yao Wang, bitwangyaoyao (a] gmail.com 12 // Redistribution and use in source and binary forms, with or without modification, 13 // are permitted provided that the following conditions are met: 14 // 15 // * Redistribution's of source code must retain the above copyright notice, 16 // this list of conditions and the following disclaimer. 17 // 18 // * Redistribution's in binary form must reproduce the above copyright notice, 19 // this list of conditions and the following disclaimer in the documentation 20 // and/or other materials provided with the distribution. 21 // 22 // * The name of the copyright holders may not be used to endorse or promote products 23 // derived from this software without specific prior written permission. 24 // 25 // This software is provided by the copyright holders and contributors as is and 26 // any express or implied warranties, including, but not limited to, the implied 27 // warranties of merchantability and fitness for a particular purpose are disclaimed. 28 // In no event shall the Intel Corporation or contributors be liable for any direct, 29 // indirect, incidental, special, exemplary, or consequential damages 30 // (including, but not limited to, procurement of substitute goods or services; 31 // loss of use, data, or profits; or business interruption) however caused 32 // and on any theory of liability, whether in contract, strict liability, 33 // or tort (including negligence or otherwise) arising in any way out of 34 // the use of this software, even if advised of the possibility of such damage. 35 // 36 // 37 38 #ifdef DOUBLE_SUPPORT 39 #ifdef cl_amd_fp64 40 #pragma OPENCL EXTENSION cl_amd_fp64:enable 41 #elif defined (cl_khr_fp64) 42 #pragma OPENCL EXTENSION cl_khr_fp64:enable 43 #endif 44 #endif 45 46 #define noconvert 47 48 #if cn != 3 49 #define loadpix(addr) *(__global const T *)(addr) 50 #define storepix(val, addr) *(__global T *)(addr) = val 51 #define TSIZE (int)sizeof(T) 52 #else 53 #define loadpix(addr) vload3(0, (__global const T1 *)(addr)) 54 #define storepix(val, addr) vstore3(val, 0, (__global T1 *)(addr)) 55 #define TSIZE ((int)sizeof(T1)*3) 56 #endif 57 58 #ifdef DEPTH_0 59 #define MIN_VAL 0 60 #define MAX_VAL UCHAR_MAX 61 #elif defined DEPTH_1 62 #define MIN_VAL SCHAR_MIN 63 #define MAX_VAL SCHAR_MAX 64 #elif defined DEPTH_2 65 #define MIN_VAL 0 66 #define MAX_VAL USHRT_MAX 67 #elif defined DEPTH_3 68 #define MIN_VAL SHRT_MIN 69 #define MAX_VAL SHRT_MAX 70 #elif defined DEPTH_4 71 #define MIN_VAL INT_MIN 72 #define MAX_VAL INT_MAX 73 #elif defined DEPTH_5 74 #define MIN_VAL (-FLT_MAX) 75 #define MAX_VAL FLT_MAX 76 #elif defined DEPTH_6 77 #define MIN_VAL (-DBL_MAX) 78 #define MAX_VAL DBL_MAX 79 #endif 80 81 #ifdef OP_ERODE 82 #define VAL MAX_VAL 83 #elif defined OP_DILATE 84 #define VAL MIN_VAL 85 #else 86 #error "Unknown operation" 87 #endif 88 89 #ifdef OP_ERODE 90 #if defined INTEL_DEVICE && defined DEPTH_0 91 #define MORPH_OP(A, B) ((A) < (B) ? (A) : (B)) 92 #else 93 #define MORPH_OP(A, B) min((A), (B)) 94 #endif 95 #endif 96 #ifdef OP_DILATE 97 #define MORPH_OP(A, B) max((A), (B)) 98 #endif 99 100 #define PROCESS(y, x) \ 101 temp = LDS_DAT[mad24(l_y + y, width, l_x + x)]; \ 102 res = MORPH_OP(res, temp); 103 104 // BORDER_CONSTANT: iiiiii|abcdefgh|iiiiiii 105 #define ELEM(i, l_edge, r_edge, elem1, elem2) (i) < (l_edge) | (i) >= (r_edge) ? (elem1) : (elem2) 106 107 #if defined OP_GRADIENT || defined OP_TOPHAT || defined OP_BLACKHAT 108 #define EXTRA_PARAMS , __global const uchar * matptr, int mat_step, int mat_offset 109 #else 110 #define EXTRA_PARAMS 111 #endif 112 113 __kernel void morph(__global const uchar * srcptr, int src_step, int src_offset, 114 __global uchar * dstptr, int dst_step, int dst_offset, 115 int src_offset_x, int src_offset_y, int cols, int rows, 116 int src_whole_cols, int src_whole_rows EXTRA_PARAMS) 117 { 118 int gidx = get_global_id(0), gidy = get_global_id(1); 119 int l_x = get_local_id(0), l_y = get_local_id(1); 120 int x = get_group_id(0) * LSIZE0, y = get_group_id(1) * LSIZE1; 121 int start_x = x + src_offset_x - RADIUSX; 122 int width = mad24(RADIUSX, 2, LSIZE0 + 1); 123 int start_y = y + src_offset_y - RADIUSY; 124 int point1 = mad24(l_y, LSIZE0, l_x); 125 int point2 = point1 + LSIZE0 * LSIZE1; 126 int tl_x = point1 % width, tl_y = point1 / width; 127 int tl_x2 = point2 % width, tl_y2 = point2 / width; 128 int cur_x = start_x + tl_x, cur_y = start_y + tl_y; 129 int cur_x2 = start_x + tl_x2, cur_y2 = start_y + tl_y2; 130 int start_addr = mad24(cur_y, src_step, cur_x * TSIZE); 131 int start_addr2 = mad24(cur_y2, src_step, cur_x2 * TSIZE); 132 133 __local T LDS_DAT[2 * LSIZE1 * LSIZE0]; 134 135 // read pixels from src 136 int end_addr = mad24(src_whole_rows - 1, src_step, src_whole_cols * TSIZE); 137 start_addr = start_addr < end_addr && start_addr > 0 ? start_addr : 0; 138 start_addr2 = start_addr2 < end_addr && start_addr2 > 0 ? start_addr2 : 0; 139 140 T temp0 = loadpix(srcptr + start_addr); 141 T temp1 = loadpix(srcptr + start_addr2); 142 143 // judge if read out of boundary 144 temp0 = ELEM(cur_x, 0, src_whole_cols, (T)(VAL), temp0); 145 temp0 = ELEM(cur_y, 0, src_whole_rows, (T)(VAL), temp0); 146 147 temp1 = ELEM(cur_x2, 0, src_whole_cols, (T)(VAL), temp1); 148 temp1 = ELEM(cur_y2, 0, src_whole_rows, (T)(VAL), temp1); 149 150 LDS_DAT[point1] = temp0; 151 LDS_DAT[point2] = temp1; 152 barrier(CLK_LOCAL_MEM_FENCE); 153 154 if (gidx < cols && gidy < rows) 155 { 156 T res = (T)(VAL), temp; 157 PROCESS_ELEMS; 158 159 int dst_index = mad24(gidy, dst_step, mad24(gidx, TSIZE, dst_offset)); 160 161 #if defined OP_GRADIENT || defined OP_TOPHAT || defined OP_BLACKHAT 162 int mat_index = mad24(gidy, mat_step, mad24(gidx, TSIZE, mat_offset)); 163 T value = loadpix(matptr + mat_index); 164 165 #ifdef OP_GRADIENT 166 storepix(convertToT(convertToWT(res) - convertToWT(value)), dstptr + dst_index); 167 #elif defined OP_TOPHAT 168 storepix(convertToT(convertToWT(value) - convertToWT(res)), dstptr + dst_index); 169 #elif defined OP_BLACKHAT 170 storepix(convertToT(convertToWT(res) - convertToWT(value)), dstptr + dst_index); 171 #endif 172 #else // erode or dilate 173 storepix(res, dstptr + dst_index); 174 #endif 175 } 176 } 177
