jamie@264: 
jamie@264: 
jamie@264: #include "xttest_util.hpp"
jamie@267: #include "xttest_tables.hpp"
jamie@264: 
jamie@264: #include <random>
jamie@264: 
jamie@264: #include <math.h>
jamie@264: #include <stdio.h>
jamie@264: 
jamie@264: 
jamie@264: #define XTTEST_2PI 6.28318530717958647693
jamie@264: 
jamie@264: void xttest_gen_sine(double *table, uint32_t tablesize, double samplerate, double frequency, double amplitude)
jamie@264: {
jamie@264:     int samples_per_period = samplerate / frequency;
jamie@264: 
jamie@267:     for (uint32_t i = 0; i < tablesize; ++i)
jamie@264:     {
jamie@264:         int phase = i % samples_per_period;
jamie@264:         table[i] = sin((phase / (double)samples_per_period) * XTTEST_2PI) * amplitude;
jamie@264:     }
jamie@264: }
jamie@264: 
jamie@269: void xttest_gen_sawtooth(double *table, uint32_t tablesize, double samplerate, double frequency, double amplitude)
jamie@269: {
jamie@269:     int samples_per_period = samplerate / frequency;
jamie@269: 
jamie@269:     for (uint32_t i = 0; i < tablesize; ++i)
jamie@269:     {
jamie@269:         int phase = i % samples_per_period;
jamie@269:         table[i] = ((phase / (double)samples_per_period) * 2.0 - 1.0) * amplitude;
jamie@269:     }
jamie@269: }
jamie@269: 
jamie@264: void xttest_gen_noise(double *table, uint32_t tablesize, double amplitude)
jamie@264: {
jamie@267:     for (uint32_t i = 0; i < tablesize; ++i)
jamie@264:     {
jamie@267:         table[i] = xttest_noise1024[i] * amplitude;
jamie@264:     }
jamie@264: }
jamie@264: 
jamie@267: uint16_t xttest_ftom(double frequency)
jamie@267: {
jamie@267:     return (int)roundf(6900.0 + 1200.0 * log2(frequency / 440.0));
jamie@267: }
jamie@267: 
jamie@267: void xttest_add(double *table1, double *table2, uint32_t tablesize)
jamie@267: {
jamie@267:     for (uint32_t i = 0; i < tablesize; ++i)
jamie@267:     {
jamie@267:         table1[i] += table2[i];
jamie@267:     }
jamie@267: }
jamie@267: 
jamie@267: void xttest_mul(double *table, uint32_t tablesize, double constant)
jamie@267: {
jamie@267:     for (uint32_t i = 0; i < tablesize; ++i)
jamie@267:     {
jamie@267:         table[i] *= constant;
jamie@267:     }
jamie@267: }
jamie@267: 
jamie@267: