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) 2000-2008, Intel Corporation, all rights reserved. 14 // Copyright (C) 2009, Willow Garage Inc., all rights reserved. 15 // Third party copyrights are property of their respective owners. 16 // 17 // Redistribution and use in source and binary forms, with or without modification, 18 // are permitted provided that the following conditions are met: 19 // 20 // * Redistribution's of source code must retain the above copyright notice, 21 // this list of conditions and the following disclaimer. 22 // 23 // * Redistribution's in binary form must reproduce the above copyright notice, 24 // this list of conditions and the following disclaimer in the documentation 25 // and/or other materials provided with the distribution. 26 // 27 // * The name of the copyright holders may not be used to endorse or promote products 28 // derived from this software without specific prior written permission. 29 // 30 // This software is provided by the copyright holders and contributors "as is" and 31 // any express or implied warranties, including, but not limited to, the implied 32 // warranties of merchantability and fitness for a particular purpose are disclaimed. 33 // In no event shall the Intel Corporation or contributors be liable for any direct, 34 // indirect, incidental, special, exemplary, or consequential damages 35 // (including, but not limited to, procurement of substitute goods or services; 36 // loss of use, data, or profits; or business interruption) however caused 37 // and on any theory of liability, whether in contract, strict liability, 38 // or tort (including negligence or otherwise) arising in any way out of 39 // the use of this software, even if advised of the possibility of such damage. 40 // 41 //M*/ 42 43 #include "opencv2/opencv_modules.hpp" 44 45 #ifndef HAVE_OPENCV_CUDEV 46 47 #error "opencv_cudev is required" 48 49 #else 50 51 #include "opencv2/cudev.hpp" 52 53 using namespace cv::cudev; 54 55 void absDiffScalar(const GpuMat& src, cv::Scalar val, bool, GpuMat& dst, const GpuMat&, double, Stream& stream, int); 56 57 namespace 58 { 59 template <typename T, typename S> struct AbsDiffScalarOp : unary_function<T, T> 60 { 61 S val; 62 63 __device__ __forceinline__ T operator ()(T a) const 64 { 65 abs_func<S> f; 66 return saturate_cast<T>(f(a - val)); 67 } 68 }; 69 70 template <typename ScalarDepth> struct TransformPolicy : DefaultTransformPolicy 71 { 72 }; 73 template <> struct TransformPolicy<double> : DefaultTransformPolicy 74 { 75 enum { 76 shift = 1 77 }; 78 }; 79 80 template <typename SrcType, typename ScalarDepth> 81 void absDiffScalarImpl(const GpuMat& src, double value, GpuMat& dst, Stream& stream) 82 { 83 AbsDiffScalarOp<SrcType, ScalarDepth> op; 84 op.val = static_cast<ScalarDepth>(value); 85 gridTransformUnary_< TransformPolicy<ScalarDepth> >(globPtr<SrcType>(src), globPtr<SrcType>(dst), op, stream); 86 } 87 } 88 89 void absDiffScalar(const GpuMat& src, cv::Scalar val, bool, GpuMat& dst, const GpuMat&, double, Stream& stream, int) 90 { 91 typedef void (*func_t)(const GpuMat& src, double val, GpuMat& dst, Stream& stream); 92 static const func_t funcs[] = 93 { 94 absDiffScalarImpl<uchar, float>, 95 absDiffScalarImpl<schar, float>, 96 absDiffScalarImpl<ushort, float>, 97 absDiffScalarImpl<short, float>, 98 absDiffScalarImpl<int, float>, 99 absDiffScalarImpl<float, float>, 100 absDiffScalarImpl<double, double> 101 }; 102 103 const int depth = src.depth(); 104 105 CV_DbgAssert( depth <= CV_64F ); 106 107 funcs[depth](src, val[0], dst, stream); 108 } 109 110 #endif 111
