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////////////////////////////////////////////////////////////////////////////////
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//
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// Filename: fftlib.h
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//
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// Project: A General Purpose Pipelined FFT Implementation
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//
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// Purpose:
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//
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// Creator: Dan Gisselquist, Ph.D.
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// Gisselquist Technology, LLC
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//
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////////////////////////////////////////////////////////////////////////////////
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//
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// Copyright (C) 2015-2018, Gisselquist Technology, LLC
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//
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// This program is free software (firmware): you can redistribute it and/or
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// modify it under the terms of the GNU General Public License as published
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// by the Free Software Foundation, either version 3 of the License, or (at
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// your option) any later version.
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//
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// This program is distributed in the hope that it will be useful, but WITHOUT
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// ANY WARRANTY; without even the implied warranty of MERCHANTIBILITY or
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// FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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// for more details.
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//
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// You should have received a copy of the GNU General Public License along
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dgisselq |
// with this program. (It's in the $(ROOT)/doc directory. Run make with no
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dgisselq |
// target there if the PDF file isn't present.) If not, see
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// <http://www.gnu.org/licenses/> for a copy.
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//
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// License: GPL, v3, as defined and found on www.gnu.org,
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// http://www.gnu.org/licenses/gpl.html
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//
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//
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////////////////////////////////////////////////////////////////////////////////
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//
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//
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#ifndef FFTLIB_H
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#define FFTLIB_H
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#define USE_OLD_MULTIPLY false
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extern int lgval(int vl);
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extern int nextlg(int vl);
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extern int bflydelay(int nbits, int xtra);
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extern int lgdelay(int nbits, int xtra);
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extern void gen_coeffs(FILE *cmem, int stage, int cbits,
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int nwide, int offset, bool inv);
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extern std::string gen_coeff_fname(const char *coredir,
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int stage, int nwide, int offset, bool inv);
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extern FILE *gen_coeff_open(const char *fname);
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extern void gen_coeff_file(const char *coredir, const char *fname,
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int stage, int cbits, int nwide, int offset, bool inv);
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#endif // FFTLIB_H
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