Merged eb/gcell -r8215:8243 into trunk. This adds gr-gcell, the GNU

[debian/gnuradio] / gr-gcell / src / gcell_fft_vcc.h

diff --git a/gr-gcell/src/gcell_fft_vcc.h b/gr-gcell/src/gcell_fft_vcc.h
new file mode 100644 (file)
index 0000000..2cf13b3
--- /dev/null
+++ b/gr-gcell/src/gcell_fft_vcc.h
@@ -0,0 +1,63 @@
+/* -*- 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_GCELL_FFT_VCC_H
+#define INCLUDED_GCELL_FFT_VCC_H
+
+#include <gr_fft_vcc.h>
+
+class gc_job_manager;
+
+class gcell_fft_vcc;
+typedef boost::shared_ptr<gcell_fft_vcc> gcell_fft_vcc_sptr;
+
+gcell_fft_vcc_sptr
+gcell_make_fft_vcc(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
+ *
+ * Concrete class that uses gcell to offload FFT to SPEs.
+ */
+class gcell_fft_vcc : public gr_fft_vcc
+{
+  int                               d_log2_fft_size;
+  boost::shared_ptr<gc_job_manager>  d_mgr;
+  std::complex<float>              *d_twiddle;         // twiddle values (16-byte aligned)
+  boost::shared_ptr<void>           d_twiddle_boost;   // automatic storage mgmt
+  
+  friend gcell_fft_vcc_sptr
+  gcell_make_fft_vcc(int fft_size, bool forward, const std::vector<float> &window, bool shift);
+
+  gcell_fft_vcc(int fft_size, bool forward, const std::vector<float> &window, bool shift);
+
+ public:
+  ~gcell_fft_vcc();
+
+  int work(int noutput_items,
+          gr_vector_const_void_star &input_items,
+          gr_vector_void_star &output_items);
+};
+
+
+#endif /* INCLUDED_GCELL_FFT_VCC_H */