diff options
Diffstat (limited to 'tests/xttest_util.cpp')
| -rw-r--r-- | tests/xttest_util.cpp | 34 |
1 files changed, 26 insertions, 8 deletions
diff --git a/tests/xttest_util.cpp b/tests/xttest_util.cpp index ad223fd..47fbf8a 100644 --- a/tests/xttest_util.cpp +++ b/tests/xttest_util.cpp @@ -1,6 +1,7 @@ #include "xttest_util.hpp" +#include "xttest_tables.hpp" #include <random> @@ -14,7 +15,7 @@ void xttest_gen_sine(double *table, uint32_t tablesize, double samplerate, doubl { int samples_per_period = samplerate / frequency; - for (int i = 0; i < tablesize; ++i) + for (uint32_t i = 0; i < tablesize; ++i) { int phase = i % samples_per_period; table[i] = sin((phase / (double)samples_per_period) * XTTEST_2PI) * amplitude; @@ -23,15 +24,32 @@ void xttest_gen_sine(double *table, uint32_t tablesize, double samplerate, doubl void xttest_gen_noise(double *table, uint32_t tablesize, double amplitude) { - std::random_device rd; - std::mt19937 gen(rd()); - std::uniform_real_distribution<double> dist(-amplitude, amplitude); - - for (int i = 0; i < tablesize; ++i) + for (uint32_t i = 0; i < tablesize; ++i) { - table[i] = dist(gen); - printf("%f\n", table[i]); + table[i] = xttest_noise1024[i] * amplitude; } +} + + +uint16_t xttest_ftom(double frequency) +{ + return (int)roundf(6900.0 + 1200.0 * log2(frequency / 440.0)); +} + +void xttest_add(double *table1, double *table2, uint32_t tablesize) +{ + for (uint32_t i = 0; i < tablesize; ++i) + { + table1[i] += table2[i]; + } +} +void xttest_mul(double *table, uint32_t tablesize, double constant) +{ + for (uint32_t i = 0; i < tablesize; ++i) + { + table[i] *= constant; + } } + |