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126 lines
4.8 KiB
Common Lisp
126 lines
4.8 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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#ifdef ERODE
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#define MORPH_OP(A,B) min((A),(B))
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#endif
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#ifdef DILATE
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#define MORPH_OP(A,B) max((A),(B))
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#endif
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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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__kernel void morph(__global const GENTYPE * restrict src,
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__global GENTYPE *dst,
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int src_offset_x, int src_offset_y,
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int cols, int rows,
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int src_step_in_pixel, int dst_step_in_pixel,
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__constant uchar * mat_kernel,
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int src_whole_cols, int src_whole_rows,
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int dst_offset_in_pixel)
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{
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int l_x = get_local_id(0);
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int l_y = get_local_id(1);
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int x = get_group_id(0)*LSIZE0;
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int y = get_group_id(1)*LSIZE1;
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int start_x = x+src_offset_x-RADIUSX;
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int end_x = x + src_offset_x+LSIZE0+RADIUSX;
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int width = end_x -(x+src_offset_x-RADIUSX)+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;
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int tl_y = point1 / width;
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int tl_x2 = point2 % width;
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int tl_y2 = point2 / width;
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int cur_x = start_x + tl_x;
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int cur_y = start_y + tl_y;
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int cur_x2 = start_x + tl_x2;
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int cur_y2 = start_y + tl_y2;
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int start_addr = mad24(cur_y,src_step_in_pixel,cur_x);
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int start_addr2 = mad24(cur_y2,src_step_in_pixel,cur_x2);
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GENTYPE temp0,temp1;
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__local GENTYPE LDS_DAT[2*LSIZE1*LSIZE0];
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int end_addr = mad24(src_whole_rows - 1,src_step_in_pixel,src_whole_cols);
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//read pixels from src
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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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temp0 = src[start_addr];
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temp1 = src[start_addr2];
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//judge if read out of boundary
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temp0= ELEM(cur_x,0,src_whole_cols,(GENTYPE)VAL,temp0);
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temp0= ELEM(cur_y,0,src_whole_rows,(GENTYPE)VAL,temp0);
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temp1= ELEM(cur_x2,0,src_whole_cols,(GENTYPE)VAL,temp1);
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temp1= ELEM(cur_y2,0,src_whole_rows,(GENTYPE)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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GENTYPE res = (GENTYPE)VAL;
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for(int i=0; i<2*RADIUSY+1; i++)
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for(int j=0; j<2*RADIUSX+1; j++)
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{
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res =
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#ifndef RECTKERNEL
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mat_kernel[i*(2*RADIUSX+1)+j] ?
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#endif
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MORPH_OP(res,LDS_DAT[mad24(l_y+i,width,l_x+j)])
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#ifndef RECTKERNEL
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:res
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#endif
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;
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}
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int gidx = get_global_id(0);
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int gidy = get_global_id(1);
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int out_addr = mad24(gidy,dst_step_in_pixel,gidx+dst_offset_in_pixel);
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if(gidx<cols && gidy<rows)
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{
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dst[out_addr] = res;
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}
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}
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