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