1 /*M///////////////////////////////////////////////////////////////////////////////////////
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11 // For Open Source Computer Vision Library
13 // Copyright (C) 2010-2012, Institute Of Software Chinese Academy Of Science, all rights reserved.
14 // Copyright (C) 2010-2012, Advanced Micro Devices, Inc., all rights reserved.
15 // Third party copyrights are property of their respective owners.
18 // Wu Zailong, bullet@yeah.net
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21 // are permitted provided that the following conditions are met:
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24 // this list of conditions and the following disclaimer.
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48 #pragma OPENCL EXTENSION cl_amd_fp64:enable
49 #elif defined (cl_khr_fp64)
50 #pragma OPENCL EXTENSION cl_khr_fp64:enable
54 //////////////////////////////////////////////////////////////////////////////////////////////////////
55 /////////////////////////////////////////////LOG/////////////////////////////////////////////////////
56 ///////////////////////////////////////////////////////////////////////////////////////////////////////
58 __kernel void arithm_log_C1(__global srcT *src, __global srcT *dst,
60 int srcOffset1, int dstOffset1,
61 int srcStep1, int dstStep1)
63 int x = get_global_id(0);
64 int y = get_global_id(1);
66 if(x < cols1 && y < rows)
68 int srcIdx = mad24(y, srcStep1, x + srcOffset1);
69 int dstIdx = mad24(y, dstStep1, x + dstOffset1);
71 dst[dstIdx] = log(src[srcIdx]);
75 __kernel void arithm_log_C2(__global srcT *src, __global srcT *dst,
77 int srcOffset1, int dstOffset1,
78 int srcStep1, int dstStep1)
80 int x1 = get_global_id(0) << 1;
81 int y = get_global_id(1);
83 if(x1 < cols1 && y < rows)
85 int srcIdx = mad24(y, srcStep1, x1 + srcOffset1);
86 int dstIdx = mad24(y, dstStep1, x1 + dstOffset1);
88 dst[dstIdx] = log(src[srcIdx]);
89 dst[dstIdx + 1] = x1 + 1 < cols1 ? log(src[srcIdx + 1]) : dst[dstIdx + 1];
93 __kernel void arithm_log_C4(__global srcT *src, __global srcT *dst,
95 int srcOffset1, int dstOffset1,
96 int srcStep1, int dstStep1)
98 int x1 = get_global_id(0) << 2;
99 int y = get_global_id(1);
101 if(x1 < cols1 && y < rows)
103 int srcIdx = mad24(y, srcStep1, x1 + srcOffset1);
104 int dstIdx = mad24(y, dstStep1, x1 + dstOffset1);
106 dst[dstIdx] = log(src[srcIdx]);
107 dst[dstIdx + 1] = x1 + 1 < cols1 ? log(src[srcIdx + 1]) : dst[dstIdx + 1];
108 dst[dstIdx + 2] = x1 + 2 < cols1 ? log(src[srcIdx + 2]) : dst[dstIdx + 2];
109 dst[dstIdx + 3] = x1 + 3 < cols1 ? log(src[srcIdx + 3]) : dst[dstIdx + 3];