diff options
Diffstat (limited to 'lib/rainbow_oscillator.c')
| -rw-r--r-- | lib/rainbow_oscillator.c | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/lib/rainbow_oscillator.c b/lib/rainbow_oscillator.c new file mode 100644 index 0000000..1a56b55 --- /dev/null +++ b/lib/rainbow_oscillator.c @@ -0,0 +1,68 @@ +// 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( max_ma == min_ma ) + y[0][i] = 0; + else + y[0][i] = ( x[0][i] - min_ma ) / ( max_ma - min_ma ) * 100.0; + } + return 0; +} + |