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@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