/*

 * 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);