1 /*M/////////////////////////////////////////////////////////////////////////////////////// 2 // 3 // IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING. 4 // 5 // By downloading, copying, installing or using the software you agree to this license. 6 // If you do not agree to this license, do not download, install, 7 // copy or use the software. 8 // 9 // 10 // License Agreement 11 // For Open Source Computer Vision Library 12 // 13 // Copyright (C) 2010-2012, MulticoreWare Inc., 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. 16 // 17 // @Authors 18 // Liu Liujun, liujun (at) multicorewareinc.com 19 // 20 // Redistribution and use in source and binary forms, with or without modification, 21 // are permitted provided that the following conditions are met: 22 // 23 // * Redistribution's of source code must retain the above copyright notice, 24 // this list of conditions and the following disclaimer. 25 // 26 // * Redistribution's in binary form must reproduce the above copyright notice, 27 // this list of conditions and the following disclaimer in the documentation 28 // and/or other materials provided with the distribution. 29 // 30 // * The name of the copyright holders may not be used to endorse or promote products 31 // derived from this software without specific prior written permission. 32 // 33 // This software is provided by the copyright holders and contributors as is and 34 // any express or implied warranties, including, but not limited to, the implied 35 // warranties of merchantability and fitness for a particular purpose are disclaimed. 36 // In no event shall the Intel Corporation or contributors be liable for any direct, 37 // indirect, incidental, special, exemplary, or consequential damages 38 // (including, but not limited to, procurement of substitute goods or services; 39 // loss of use, data, or profits; or business interruption) however caused 40 // and on any theory of liability, whether in contract, strict liability, 41 // or tort (including negligence or otherwise) arising in any way out of 42 // the use of this software, even if advised of the possibility of such damage. 43 // 44 //M*/ 45 46 #ifdef DOUBLE_SUPPORT 47 #ifdef cl_amd_fp64 48 #pragma OPENCL EXTENSION cl_amd_fp64:enable 49 #elif defined (cl_khr_fp64) 50 #pragma OPENCL EXTENSION cl_khr_fp64:enable 51 #endif 52 #endif 53 54 #define noconvert 55 56 __kernel void blendLinear(__global const uchar * src1ptr, int src1_step, int src1_offset, 57 __global const uchar * src2ptr, int src2_step, int src2_offset, 58 __global const uchar * weight1, int weight1_step, int weight1_offset, 59 __global const uchar * weight2, int weight2_step, int weight2_offset, 60 __global uchar * dstptr, int dst_step, int dst_offset, int dst_rows, int dst_cols) 61 { 62 int x = get_global_id(0); 63 int y = get_global_id(1); 64 65 if (x < dst_cols && y < dst_rows) 66 { 67 int src1_index = mad24(y, src1_step, src1_offset + x * cn * (int)sizeof(T)); 68 int src2_index = mad24(y, src2_step, src2_offset + x * cn * (int)sizeof(T)); 69 int weight1_index = mad24(y, weight1_step, weight1_offset + x * (int)sizeof(float)); 70 int weight2_index = mad24(y, weight2_step, weight2_offset + x * (int)sizeof(float)); 71 int dst_index = mad24(y, dst_step, dst_offset + x * cn * (int)sizeof(T)); 72 73 float w1 = *(__global const float *)(weight1 + weight1_index), 74 w2 = *(__global const float *)(weight2 + weight2_index); 75 float den = w1 + w2 + 1e-5f; 76 77 __global const T * src1 = (__global const T *)(src1ptr + src1_index); 78 __global const T * src2 = (__global const T *)(src2ptr + src2_index); 79 __global T * dst = (__global T *)(dstptr + dst_index); 80 81 #pragma unroll 82 for (int i = 0; i < cn; ++i) 83 { 84 float num = w1 * convert_float(src1[i]) + w2 * convert_float(src2[i]); 85 dst[i] = convertToT(num / den); 86 } 87 } 88 } 89
