1/*M///////////////////////////////////////////////////////////////////////////////////////
2//
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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.
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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/cudaarithm.hpp"
52#include "opencv2/cudev.hpp"
53#include "opencv2/core/private.cuda.hpp"
54
55using namespace cv;
56using namespace cv::cuda;
57using namespace cv::cudev;
58
59////////////////////////////////////////////////////////////////////////
60// integral
61
62void cv::cuda::integral(InputArray _src, OutputArray _dst, Stream& stream)
63{
64    GpuMat src = getInputMat(_src, stream);
65
66    CV_Assert( src.type() == CV_8UC1 );
67
68    BufferPool pool(stream);
69    GpuMat_<int> res(src.size(), pool.getAllocator());
70
71    gridIntegral(globPtr<uchar>(src), res, stream);
72
73    GpuMat dst = getOutputMat(_dst, src.rows + 1, src.cols + 1, CV_32SC1, stream);
74
75    dst.setTo(Scalar::all(0), stream);
76
77    GpuMat inner = dst(Rect(1, 1, src.cols, src.rows));
78    res.copyTo(inner, stream);
79
80    syncOutput(dst, _dst, stream);
81}
82
83//////////////////////////////////////////////////////////////////////////////
84// sqrIntegral
85
86void cv::cuda::sqrIntegral(InputArray _src, OutputArray _dst, Stream& stream)
87{
88    GpuMat src = getInputMat(_src, stream);
89
90    CV_Assert( src.type() == CV_8UC1 );
91
92    BufferPool pool(Stream::Null());
93    GpuMat_<double> res(pool.getBuffer(src.size(), CV_64FC1));
94
95    gridIntegral(sqr_(cvt_<int>(globPtr<uchar>(src))), res, stream);
96
97    GpuMat dst = getOutputMat(_dst, src.rows + 1, src.cols + 1, CV_64FC1, stream);
98
99    dst.setTo(Scalar::all(0), stream);
100
101    GpuMat inner = dst(Rect(1, 1, src.cols, src.rows));
102    res.copyTo(inner, stream);
103
104    syncOutput(dst, _dst, stream);
105}
106
107#endif
108