1 /*M///////////////////////////////////////////////////////////////////////////////////////
2 //
3 // IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING.
4 //
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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.
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39 // the use of this software, even if advised of the possibility of such damage.
40 //
41 //M*/
42
43 #include "precomp.hpp"
44
45 using namespace cv;
46 using namespace cv::cuda;
47
48 #if !defined HAVE_CUDA || defined(CUDA_DISABLER)
49
pyrDown(InputArray,OutputArray,Stream &)50 void cv::cuda::pyrDown(InputArray, OutputArray, Stream&) { throw_no_cuda(); }
pyrUp(InputArray,OutputArray,Stream &)51 void cv::cuda::pyrUp(InputArray, OutputArray, Stream&) { throw_no_cuda(); }
52
53 #else // HAVE_CUDA
54
55 //////////////////////////////////////////////////////////////////////////////
56 // pyrDown
57
58 namespace cv { namespace cuda { namespace device
59 {
60 namespace imgproc
61 {
62 template <typename T> void pyrDown_gpu(PtrStepSzb src, PtrStepSzb dst, cudaStream_t stream);
63 }
64 }}}
65
pyrDown(InputArray _src,OutputArray _dst,Stream & stream)66 void cv::cuda::pyrDown(InputArray _src, OutputArray _dst, Stream& stream)
67 {
68 using namespace cv::cuda::device::imgproc;
69
70 typedef void (*func_t)(PtrStepSzb src, PtrStepSzb dst, cudaStream_t stream);
71 static const func_t funcs[6][4] =
72 {
73 {pyrDown_gpu<uchar> , 0 /*pyrDown_gpu<uchar2>*/ , pyrDown_gpu<uchar3> , pyrDown_gpu<uchar4> },
74 {0 /*pyrDown_gpu<schar>*/, 0 /*pyrDown_gpu<schar2>*/ , 0 /*pyrDown_gpu<schar3>*/, 0 /*pyrDown_gpu<schar4>*/},
75 {pyrDown_gpu<ushort> , 0 /*pyrDown_gpu<ushort2>*/, pyrDown_gpu<ushort3> , pyrDown_gpu<ushort4> },
76 {pyrDown_gpu<short> , 0 /*pyrDown_gpu<short2>*/ , pyrDown_gpu<short3> , pyrDown_gpu<short4> },
77 {0 /*pyrDown_gpu<int>*/ , 0 /*pyrDown_gpu<int2>*/ , 0 /*pyrDown_gpu<int3>*/ , 0 /*pyrDown_gpu<int4>*/ },
78 {pyrDown_gpu<float> , 0 /*pyrDown_gpu<float2>*/ , pyrDown_gpu<float3> , pyrDown_gpu<float4> }
79 };
80
81 GpuMat src = _src.getGpuMat();
82
83 CV_Assert( src.depth() <= CV_32F && src.channels() <= 4 );
84
85 const func_t func = funcs[src.depth()][src.channels() - 1];
86 CV_Assert( func != 0 );
87
88 _dst.create((src.rows + 1) / 2, (src.cols + 1) / 2, src.type());
89 GpuMat dst = _dst.getGpuMat();
90
91 func(src, dst, StreamAccessor::getStream(stream));
92 }
93
94
95 //////////////////////////////////////////////////////////////////////////////
96 // pyrUp
97
98 namespace cv { namespace cuda { namespace device
99 {
100 namespace imgproc
101 {
102 template <typename T> void pyrUp_gpu(PtrStepSzb src, PtrStepSzb dst, cudaStream_t stream);
103 }
104 }}}
105
pyrUp(InputArray _src,OutputArray _dst,Stream & stream)106 void cv::cuda::pyrUp(InputArray _src, OutputArray _dst, Stream& stream)
107 {
108 using namespace cv::cuda::device::imgproc;
109
110 typedef void (*func_t)(PtrStepSzb src, PtrStepSzb dst, cudaStream_t stream);
111 static const func_t funcs[6][4] =
112 {
113 {pyrUp_gpu<uchar> , 0 /*pyrUp_gpu<uchar2>*/ , pyrUp_gpu<uchar3> , pyrUp_gpu<uchar4> },
114 {0 /*pyrUp_gpu<schar>*/, 0 /*pyrUp_gpu<schar2>*/ , 0 /*pyrUp_gpu<schar3>*/, 0 /*pyrUp_gpu<schar4>*/},
115 {pyrUp_gpu<ushort> , 0 /*pyrUp_gpu<ushort2>*/, pyrUp_gpu<ushort3> , pyrUp_gpu<ushort4> },
116 {pyrUp_gpu<short> , 0 /*pyrUp_gpu<short2>*/ , pyrUp_gpu<short3> , pyrUp_gpu<short4> },
117 {0 /*pyrUp_gpu<int>*/ , 0 /*pyrUp_gpu<int2>*/ , 0 /*pyrUp_gpu<int3>*/ , 0 /*pyrUp_gpu<int4>*/ },
118 {pyrUp_gpu<float> , 0 /*pyrUp_gpu<float2>*/ , pyrUp_gpu<float3> , pyrUp_gpu<float4> }
119 };
120
121 GpuMat src = _src.getGpuMat();
122
123 CV_Assert( src.depth() <= CV_32F && src.channels() <= 4 );
124
125 const func_t func = funcs[src.depth()][src.channels() - 1];
126 CV_Assert( func != 0 );
127
128 _dst.create(src.rows * 2, src.cols * 2, src.type());
129 GpuMat dst = _dst.getGpuMat();
130
131 func(src, dst, StreamAccessor::getStream(stream));
132 }
133
134 #endif
135