Hash :
e1d8939b
Author :
Thomas de Grivel
Date :
2020-01-20T16:05:02
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/*
* Copyright 2018 Thomas de Grivel <thoxdg@gmail.com> +33614550127
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#ifndef RTBUF_SIGNAL_H
#define RTBUF_SIGNAL_H
#include <assert.h>
#include "rtbuf.h"
typedef double t_rtbuf_signal_sample;
#define RTBUF_SIGNAL_SAMPLE_SIZE sizeof(t_rtbuf_signal_sample)
#define RTBUF_SIGNAL_SAMPLE_TYPE "double"
#define RTBUF_SIGNAL_SAMPLES 1024
#define RTBUF_SIGNAL_SAMPLERATE 48000
#define RTBUF_SIGNAL_DT \
((double) RTBUF_SIGNAL_SAMPLES / RTBUF_SIGNAL_SAMPLERATE)
typedef t_rtbuf_signal_sample t_rtbuf_signal[RTBUF_SIGNAL_SAMPLES];
#define RTBUF_SIGNAL_SIZE sizeof(t_rtbuf_signal)
typedef t_rtbuf_signal_sample
f_rtbuf_signal (const t_rtbuf_signal_sample *signal,
unsigned int sample);
typedef struct rtbuf_signal_fun {
f_rtbuf_signal *sample_fun;
const t_rtbuf_signal_sample *signal;
} s_rtbuf_signal_fun;
void rtbuf_signal_zero (t_rtbuf_signal_sample *signal);
t_rtbuf_signal_sample
rtbuf_signal_sample (s_rtbuf *rtb,
unsigned int in,
t_rtbuf_signal_sample default_value);
void rtbuf_signal_fun (s_rtbuf *rtb,
unsigned int in,
s_rtbuf_signal_fun *data);
f_rtbuf_signal rtbuf_signal_sample_from_sample;
f_rtbuf_signal rtbuf_signal_sample_from_signal;
const double g_rtbuf_signal_sample_zero;
const double g_rtbuf_signal_sample_half;
const double g_rtbuf_signal_sample_one;
const double g_rtbuf_signal_sample_2pi;
const double g_rtbuf_signal_default_frequency;
/* delay */
#define RTBUF_SIGNAL_DELAY_MAX 10
#define RTBUF_SIGNAL_DELAY_SAMPLES_MAX (RTBUF_SIGNAL_DELAY_MAX * \
RTBUF_SIGNAL_SAMPLERATE)
#pragma pack(push,1)
typedef struct rtbuf_signal_delay_data {
t_rtbuf_signal out;
t_rtbuf_signal_sample in[RTBUF_SIGNAL_DELAY_SAMPLES_MAX];
unsigned int pos;
} s_rtbuf_signal_delay_data;
#pragma pack(pop)
enum {
RTBUF_SIGNAL_DELAY_IN_SIGNAL = 0,
RTBUF_SIGNAL_DELAY_IN_DELAY,
RTBUF_SIGNAL_DELAY_IN_FEEDBACK,
RTBUF_SIGNAL_DELAY_INS
};
int rtbuf_signal_delay (s_rtbuf *rtb);
int rtbuf_signal_delay_start (s_rtbuf *rtb);
/* sinus */
#pragma pack(push,1)
typedef struct rtbuf_signal_sinus_data {
t_rtbuf_signal signal;
double phase;
} s_rtbuf_signal_sinus_data;
#pragma pack(pop)
enum {
RTBUF_SIGNAL_SINUS_IN_FREQUENCY = 0,
RTBUF_SIGNAL_SINUS_IN_AMPLITUDE,
RTBUF_SIGNAL_SINUS_IN_N
};
int rtbuf_signal_sinus (s_rtbuf *rtb);
int rtbuf_signal_sinus_start (s_rtbuf *rtb);
/* square */
enum {
RTBUF_SIGNAL_SQUARE_IN_FREQUENCY = 0,
RTBUF_SIGNAL_SQUARE_IN_AMPLITUDE,
RTBUF_SIGNAL_SQUARE_IN_PULSE,
RTBUF_SIGNAL_SQUARE_IN_N
};
#pragma pack(push,1)
typedef struct rtbuf_signal_square_data {
t_rtbuf_signal signal;
double phase;
} s_rtbuf_signal_square_data;
#pragma pack(pop)
int rtbuf_signal_square (s_rtbuf *rtb);
int rtbuf_signal_square_start (s_rtbuf *rtb);
#endif /* RTBUF_SIGNAL_H */