Imported Upstream version 3.2.2

[debian/gnuradio] / gnuradio-core / src / lib / general / gr_fft_vcc_fftw.h

diff --git a/gnuradio-core/src/lib/general/gr_fft_vcc_fftw.h b/gnuradio-core/src/lib/general/gr_fft_vcc_fftw.h
new file mode 100644 (file)
index 0000000..c026162
--- /dev/null
+++ b/gnuradio-core/src/lib/general/gr_fft_vcc_fftw.h
@@ -0,0 +1,57 @@
+/* -*- c++ -*- */
+/*
+ * Copyright 2004,2007,2008 Free Software Foundation, Inc.
+ * 
+ * This file is part of GNU Radio
+ * 
+ * GNU Radio is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3, or (at your option)
+ * any later version.
+ * 
+ * GNU Radio is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with GNU Radio; see the file COPYING.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#ifndef INCLUDED_GR_FFT_VCC_FFTW_H
+#define INCLUDED_GR_FFT_VCC_FFTW_H
+
+#include <gr_fft_vcc.h>
+
+class gri_fft_complex;
+
+gr_fft_vcc_sptr
+gr_make_fft_vcc_fftw (int fft_size, bool forward, const std::vector<float> &window, bool shift=false);
+
+/*!
+ * \brief Compute forward or reverse FFT.  complex vector in / complex vector out.
+ * \ingroup dft_blk
+ *
+ * Concrete class that uses FFTW.
+ */
+class gr_fft_vcc_fftw : public gr_fft_vcc
+{
+  friend gr_fft_vcc_sptr
+  gr_make_fft_vcc_fftw (int fft_size, bool forward, const std::vector<float> &window, bool shift);
+
+  gri_fft_complex *d_fft;
+
+  gr_fft_vcc_fftw (int fft_size, bool forward, const std::vector<float> &window, bool shift);
+
+ public:
+  ~gr_fft_vcc_fftw ();
+
+  int work (int noutput_items,
+           gr_vector_const_void_star &input_items,
+           gr_vector_void_star &output_items);
+};
+
+
+#endif /* INCLUDED_GR_FFT_VCC_FFTW_H */