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fftkernel.hh
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1/* -*- mia-c++ -*-
2 *
3 * This file is part of MIA - a toolbox for medical image analysis
4 * Copyright (c) Leipzig, Madrid 1999-2017 Gert Wollny
5 *
6 * MIA is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 3 of the License, or
9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with MIA; if not, see <http://www.gnu.org/licenses/>.
18 *
19 */
20
21#ifndef mia_2d_fftkernel_hh
22#define mia_2d_fftkernel_hh
23
24#include <complex>
25#include <fftw3.h>
26
27#include <mia/core/defines.hh>
28#include <mia/core/factory.hh>
30#include <mia/2d/defines2d.hh>
31#include <mia/2d/vector.hh>
32
34
36 static const char *data_descr;
37};
38
50class EXPORT_2D CFFT2DKernel : public CProductBase
51{
52public:
54 typedef fft2d_kernel_data plugin_data;
56 typedef kernel_plugin_type plugin_type;
57
58 CFFT2DKernel();
59
60 virtual ~CFFT2DKernel();
61
67 void apply() const;
68
69
74 float *prepare(const C2DBounds& size);
75
76private:
77 /*
78 free all the FFT structures
79 */
80 void tear_down();
81
82 virtual void do_apply(const C2DBounds& m_size, size_t m_realsize_x,
83 fftwf_complex *m_cbuffer) const = 0;
84
85 C2DBounds m_size;
86 fftwf_complex *m_cbuffer;
87 float *m_fbuffer;
88 float m_scale;
89 fftwf_plan m_forward_plan;
90 fftwf_plan m_backward_plan;
91
92 size_t m_realsize_x;
93};
94
95typedef std::shared_ptr<CFFT2DKernel > PFFT2DKernel;
96typedef TFactory<CFFT2DKernel> CFFT2DKernelPlugin;
98
100
102
103#endif
104
The base class for all plug-in created object.
Definition: product_base.hh:41
This is tha base of all plugins that create "things", like filters, cost functions time step operator...
Definition: factory.hh:51
the singleton that a plug-in handler really is
Definition: handler.hh:159
#define EXPORT_2D
Definition: defines2d.hh:37
#define NS_MIA_BEGIN
conveniance define to start the mia namespace
Definition: defines.hh:33
#define NS_MIA_END
conveniance define to end the mia namespace
Definition: defines.hh:36
static const char * data_descr
Definition: fftkernel.hh:36