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// This file is part of OpenCV project.
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// It is subject to the license terms in the LICENSE file found in the top-level directory
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// of this distribution and at http://opencv.org/license.html.
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// Copyright (C) 2014, Itseez, Inc., all rights reserved.
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// Third party copyrights are property of their respective owners.
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#ifdef ONLY_SUM_CONVERT
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__kernel void sumConvert(__global const uchar * src1ptr, int src1_step, int src1_offset,
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__global const uchar * src2ptr, int src2_step, int src2_offset,
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__global uchar * dstptr, int dst_step, int dst_offset, int dst_rows, int dst_cols,
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coeffT scale, coeffT delta)
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int x = get_global_id(0);
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int y = get_global_id(1);
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if (y < dst_rows && x < dst_cols)
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int src1_index = mad24(y, src1_step, mad24(x, (int)sizeof(srcT), src1_offset));
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int src2_index = mad24(y, src2_step, mad24(x, (int)sizeof(srcT), src2_offset));
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int dst_index = mad24(y, dst_step, mad24(x, (int)sizeof(dstT), dst_offset));
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__global const srcT * src1 = (__global const srcT *)(src1ptr + src1_index);
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__global const srcT * src2 = (__global const srcT *)(src2ptr + src2_index);
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__global dstT * dst = (__global dstT *)(dstptr + dst_index);
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dst[0] = convertToDT( mad24((WT)(scale), convertToWT(src1[0]) + convertToWT(src2[0]), (WT)(delta)) );
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dst[0] = convertToDT( mad((WT)(scale), convertToWT(src1[0]) + convertToWT(src2[0]), (WT)(delta)) );
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///////////////////////////////////////////////////////////////////////////////////////////////////
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/////////////////////////////////Macro for border type////////////////////////////////////////////
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/////////////////////////////////////////////////////////////////////////////////////////////////
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#ifdef BORDER_CONSTANT
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// CCCCCC|abcdefgh|CCCCCCC
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#define EXTRAPOLATE(x, maxV)
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#elif defined BORDER_REPLICATE
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// aaaaaa|abcdefgh|hhhhhhh
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#define EXTRAPOLATE(x, maxV) \
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(x) = clamp((x), 0, (maxV)-1); \
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#elif defined BORDER_WRAP
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// cdefgh|abcdefgh|abcdefg
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#define EXTRAPOLATE(x, maxV) \
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(x) = ( (x) + (maxV) ) % (maxV); \
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#elif defined BORDER_REFLECT
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// fedcba|abcdefgh|hgfedcb
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#define EXTRAPOLATE(x, maxV) \
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(x) = min(((maxV)-1)*2-(x)+1, max((x),-(x)-1) ); \
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#elif defined BORDER_REFLECT_101
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// gfedcb|abcdefgh|gfedcba
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#define EXTRAPOLATE(x, maxV) \
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(x) = min(((maxV)-1)*2-(x), max((x),-(x)) ); \
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#error No extrapolation method
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#define loadpix(addr) *(__global const srcT *)(addr)
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#define storepix(val, addr) *(__global dstT *)(addr) = val
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#define SRCSIZE (int)sizeof(srcT)
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#define DSTSIZE (int)sizeof(dstT)
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#define loadpix(addr) vload3(0, (__global const srcT1 *)(addr))
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#define storepix(val, addr) vstore3(val, 0, (__global dstT1 *)(addr))
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#define SRCSIZE (int)sizeof(srcT1)*3
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#define DSTSIZE (int)sizeof(dstT1)*3
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#define SRC(_x,_y) convertToWT(loadpix(Src + mad24(_y, src_step, SRCSIZE * _x)))
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#ifdef BORDER_CONSTANT
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// CCCCCC|abcdefgh|CCCCCCC
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#define ELEM(_x,_y,r_edge,t_edge,const_v) (_x)<0 | (_x) >= (r_edge) | (_y)<0 | (_y) >= (t_edge) ? (const_v) : SRC((_x),(_y))
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#define ELEM(_x,_y,r_edge,t_edge,const_v) SRC((_x),(_y))
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// horizontal and vertical filter kernels
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// should be defined on host during compile time to avoid overhead
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__constant WT1 mat_kernelX[] = { KERNEL_MATRIX_X };
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__constant WT1 mat_kernelY[] = { KERNEL_MATRIX_Y };
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__kernel void laplacian(__global uchar* Src, int src_step, int srcOffsetX, int srcOffsetY, int height, int width,
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__global uchar* Dst, int dst_step, int dst_offset, int dst_rows, int dst_cols,
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WT1 scale, WT1 delta)
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__local WT lsmem[BLK_Y + 2 * RADIUS][BLK_X + 2 * RADIUS];
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__local WT lsmemDy1[BLK_Y][BLK_X + 2 * RADIUS];
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__local WT lsmemDy2[BLK_Y][BLK_X + 2 * RADIUS];
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int lix = get_local_id(0);
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int liy = get_local_id(1);
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int x = get_global_id(0);
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int srcX = x + srcOffsetX - RADIUS;
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int yb = clocY + srcOffsetY - RADIUS;
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EXTRAPOLATE(yb, (height));
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EXTRAPOLATE(xb,(width));
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lsmem[clocY][clocX] = ELEM(xb, yb, (width), (height), 0 );
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while(clocX < BLK_X+(RADIUS*2));
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while (clocY < BLK_Y+(RADIUS*2));
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barrier(CLK_LOCAL_MEM_FENCE);
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WT scale_v = (WT)scale;
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WT delta_v = (WT)delta;
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for (int y = 0; y < dst_rows; y+=BLK_Y)
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for (i=0; i<=2*RADIUS; i++)
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sum1 = mad(lsmem[liy + i][clocX], mat_kernelY[i], sum1);
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sum2 = mad(lsmem[liy + i][clocX], mat_kernelX[i], sum2);
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lsmemDy1[liy][clocX] = sum1;
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lsmemDy2[liy][clocX] = sum2;
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while(clocX < BLK_X+(RADIUS*2));
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barrier(CLK_LOCAL_MEM_FENCE);
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if ((x < dst_cols) && (y + liy < dst_rows))
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for (i=0; i<=2*RADIUS; i++)
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sum1 = mad(lsmemDy1[liy][lix+i], mat_kernelX[i], sum1);
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sum2 = mad(lsmemDy2[liy][lix+i], mat_kernelY[i], sum2);
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WT sum = mad(scale_v, (sum1 + sum2), delta_v);
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storepix(convertToDT(sum), Dst + mad24(y + liy, dst_step, mad24(x, DSTSIZE, dst_offset)));
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for (int i = liy * BLK_X + lix; i < (RADIUS*2) * (BLK_X+(RADIUS*2)); i += BLK_X * BLK_Y)
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int clocX = i % (BLK_X+(RADIUS*2));
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int clocY = i / (BLK_X+(RADIUS*2));
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lsmem[clocY][clocX] = lsmem[clocY + BLK_Y][clocX];
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barrier(CLK_LOCAL_MEM_FENCE);
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int yb = y + liy + BLK_Y + srcOffsetY + RADIUS;
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EXTRAPOLATE(yb, (height));
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int cSrcX = x + srcOffsetX - RADIUS;
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EXTRAPOLATE(xb,(width));
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lsmem[liy + 2*RADIUS][clocX] = ELEM(xb, yb, (width), (height), 0 );
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while(clocX < BLK_X+(RADIUS*2));
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barrier(CLK_LOCAL_MEM_FENCE);
b'\\ No newline at end of file'