1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
|
// Rainbow Oscillator
//
// rainbow_oscillator
//
// Rainbow Oscillator
//
//
//
// Inputs: 1
// Outputs: 1
// Constants: 0
#include "ts.h"
ts_parameter_t const ts_rainbow_oscillator_p = { .n_inputs = 1, .n_outputs = 1, .n_constants = 0, .params_size = 0 };
uint_t ts_rainbow_oscillator_offset( ts_constant_t const *c )
{
( void )c;
return ( 13 );
}
int ts_rainbow_oscillator(
fp_t * const *y, uint_t y_n,
fp_t const * const *x, uint_t x_n,
uint_t n, ts_constant_t const *c
)
{
TS_PROLOGUE( ts_rainbow_oscillator_p );
(void)c;
uint_t const periods[] = { 2, 4, 6, 8, 10, 12, 14 };
uint_t const num_periods = 7;
for( uint_t j = 0; j < n && j < 13; ++j ) y[0][j] = 0;
for( uint_t i = 13; i < n; ++i )
{
fp_t ma_values[7];
for( uint_t p = 0; p < num_periods; ++p )
{
fp_t sum = 0;
for( uint_t j = 0; j < periods[p]; ++j )
{
sum += x[0][i - j];
}
ma_values[p] = sum / periods[p];
}
fp_t min_ma = ma_values[0];
fp_t max_ma = ma_values[0];
for( uint_t p = 1; p < num_periods; ++p )
{
if( ma_values[p] < min_ma )
min_ma = ma_values[p];
if( ma_values[p] > max_ma )
max_ma = ma_values[p];
}
if( fabs(max_ma - min_ma) < TS_FILL_ZERO_THRESHOLD )
y[0][i] = 0;
else
y[0][i] = ( x[0][i] - min_ma ) / ( max_ma - min_ma ) * 100.0;
}
return 0;
}
|