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, Institute Of Software Chinese Academy Of Science, all rights reserved. 14 // Copyright (C) 2010-2012, Advanced Micro Devices, Inc., all rights reserved. 15 // Copyright (C) 2013, OpenCV Foundation, all rights reserved. 16 // Third party copyrights are property of their respective owners. 17 // 18 // Redistribution and use in source and binary forms, with or without modification, 19 // are permitted provided that the following conditions are met: 20 // 21 // * Redistribution's of source code must retain the above copyright notice, 22 // this list of conditions and the following disclaimer. 23 // 24 // * Redistribution's in binary form must reproduce the above copyright notice, 25 // this list of conditions and the following disclaimer in the documentation 26 // and/or other materials provided with the distribution. 27 // 28 // * The name of the copyright holders may not be used to endorse or promote products 29 // derived from this software without specific prior written permission. 30 // 31 // This software is provided by the copyright holders and contributors as is and 32 // any express or implied warranties, including, but not limited to, the implied 33 // warranties of merchantability and fitness for a particular purpose are disclaimed. 34 // In no event shall the copyright holders or contributors be liable for any direct, 35 // indirect, incidental, special, exemplary, or consequential damages 36 // (including, but not limited to, procurement of substitute goods or services; 37 // loss of use, data, or profits; or business interruption) however caused 38 // and on any theory of liability, whether in contract, strict liability, 39 // or tort (including negligence or otherwise) arising in any way out of 40 // the use of this software, even if advised of the possibility of such damage. 41 // 42 //M*/ 43 44 #ifdef DOUBLE_SUPPORT 45 #ifdef cl_amd_fp64 46 #pragma OPENCL EXTENSION cl_amd_fp64:enable 47 #elif defined (cl_khr_fp64) 48 #pragma OPENCL EXTENSION cl_khr_fp64:enable 49 #endif 50 #endif 51 52 #define noconvert 53 54 __kernel void convertTo(__global const uchar * srcptr, int src_step, int src_offset, 55 __global uchar * dstptr, int dst_step, int dst_offset, int dst_rows, int dst_cols, 56 WT alpha, WT beta, int rowsPerWI) 57 { 58 int x = get_global_id(0); 59 int y0 = get_global_id(1) * rowsPerWI; 60 61 if (x < dst_cols) 62 { 63 int src_index = mad24(y0, src_step, mad24(x, (int)sizeof(srcT), src_offset)); 64 int dst_index = mad24(y0, dst_step, mad24(x, (int)sizeof(dstT), dst_offset)); 65 66 for (int y = y0, y1 = min(dst_rows, y0 + rowsPerWI); y < y1; ++y, src_index += src_step, dst_index += dst_step) 67 { 68 __global const srcT * src = (__global const srcT *)(srcptr + src_index); 69 __global dstT * dst = (__global dstT *)(dstptr + dst_index); 70 71 dst[0] = convertToDT(fma(convertToWT(src[0]), alpha, beta)); 72 } 73 } 74 } 75
