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/*
* Copyright (C) 2015 Caleb Crome
* Copyright (C) 2013-2015 Intel Corporation
*
* This program 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 2 of the License, or
* (at your option) any later version.
*
* This program 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.
*
*/
/*
* Here's a generic sine wave generator that will work indefinitely
* for any frequency.
*
* Note: the state & phasor are stored as doubles (and updated as
* doubles) because after a million samples the magnitude drifts a
* bit. If we really need floats, it can be done with periodic
* renormalization of the state_real+state_imag magnitudes.
*/
int sin_generator_init(struct sin_generator *, float, float, float);
float sin_generator_next_sample(struct sin_generator *);
void sin_generator_vfill(struct sin_generator *, float *, int);
int generate_sine_wave(struct bat *, int, void *);
int generate_sine_wave_raw_mono(struct bat *, float *, float, int);
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