Add archive code

1 files changed, 0 insertions, 182 deletions

diff --git a/src/wavetable.c b/src/wavetable.c
deleted file mode 100644
index ab3308a..0000000
--- a/src/wavetable.c
+++ /dev/null
@@ -1,182 +0,0 @@
-#include "wavetable.h"
-#include <sndfile.h>
-
-static wave_t wvt_sine_data;
-static wave_t wvt_saw_data;
-static wave_t wvt_digisaw_data;
-static wave_t wvt_tri_data;
-static wave_t wvt_sqr_data;
-static wave_t wvt_sound_data;
-
-
-void
-wvt_sine_init(size_t size)
-{
-  wvt_sine_data.size = size;
-  wvt_sine_data.data = (float *) malloc(sizeof(float) * size);
-  for (int i = 0; i < size; i++) {
-    wvt_sine_data.data[i] = sinf(2 * M_PI * i / size);
-  }
-}
-
-void
-wvt_saw_init(size_t size)
-{
-  wvt_saw_data.size = size;
-  wvt_saw_data.data = (float *) malloc(sizeof(float) * size);
-  for (int i = 0; i < size; i++) {
-    float dOutput = 0.0;
-    for (float n = 1.0; n < 25; n++)
-      dOutput += sinf(n * 2.0 * M_PI * i / size) / n;
-    wvt_saw_data.data[i] = 0.6 * dOutput;
-  }
-}
-
-void
-wvt_digisaw_init(size_t size)
-{
-  wvt_digisaw_data.size = size;
-  wvt_digisaw_data.data = (float *) malloc(sizeof(float) * size);
-  for (int i = 0; i < size; i++) {
-    wvt_digisaw_data.data[i] = (float)i / size;
-  }
-}
-
-void
-wvt_sqr_init(size_t size)
-{
-  wvt_sqr_data.size = size;
-  wvt_sqr_data.data = (float *) malloc(sizeof(float) * size);
-  for (int i = 0; i < size; i++) {
-    if (i < size / 2) {
-      wvt_sqr_data.data[i] = -1.0f;
-    } else {
-      wvt_sqr_data.data[i] = 1.0f;
-    }
-  }
-}
-
-void
-wvt_sound_init(char * path)
-{
-  SNDFILE* file;
-  SF_INFO fileInfo;
-  int numSamplesRead;
-
-  // Open the WAV file
-  file = sf_open(path, SFM_READ, &fileInfo);
-  if (!file) {
-    printf("Failed to open the WAV file: %s\n", sf_strerror(NULL));
-    return;
-  }
-  printf("frames: %ld sr: %d chan: %d format: %d sections: %d seekable: %d\n", fileInfo.frames, fileInfo.samplerate, fileInfo.channels, fileInfo.format, fileInfo.sections, fileInfo.seekable);
-  // Ensure the WAV file has only one channel
-  if (fileInfo.channels != 1) {
-    printf("Only mono WAV files are supported.\n");
-    sf_close(file);
-    return;
-  }
-
-  wvt_sound_data.size = fileInfo.frames ;
-  wvt_sound_data.data = (float *) malloc(sizeof(float) * fileInfo.frames);
-
-    // Read the WAV file into the buffer
-  numSamplesRead = sf_readf_float(file, wvt_sound_data.data, fileInfo.frames);
-
-  float max = -1000;
-  float min = 1000;
-  for (int i = 0; i < numSamplesRead; i++) {
-    float s = wvt_sound_data.data[i];
-    //    printf("Sample %d: %f\n", i, s);
-    if (s < min) min = s;
-    if (s > max) max = s;
-  }
-  printf("Min: %f Max: %f\n", min, max);
-  
-  // Close the WAV file
-  sf_close(file);
-}
-
-void
-wvt_init()
-{
-  wvt_sine_init(44100);
-  wvt_saw_init(128);
-  wvt_digisaw_init(48000);
-  wvt_sqr_init(48000);
-  wvt_tri_data.size = 2;
-  wvt_tri_data.data = (float *) malloc(sizeof(float) * 2);
-  wvt_tri_data.data[0] = -1.0f;
-  wvt_tri_data.data[1] = 1.0f;
-  wvt_sound_init("/home/gramanas/code/synth-project/waves/test1.wav");
-}
-
-
-float
-wvt_gen(wave_t * wave, float * index, float freq, int sample_rate)
-{
-  if (*index >= wave->size) *index = 0;
-
-  int current_index = (int)*index;
-  int next_index = current_index + 1 >= wave->size ? 0 : current_index + 1;
-
-  // linear interpolation between current_index and next_index
-  float m = (wave->data[next_index] - wave->data[current_index]) / (1 - 0);
-  float b = wave->data[current_index] /* + m * 0 */;
-
-  // the value to pick
-  float x = *index - current_index;
-
-  float sample = m * x + b;
-  float step = freq * ((float)wave->size / sample_rate);
-
-  *index += step;
-  if (*index >= wave->size) {
-    *index -= wave->size;
-  }
-
-  return sample;
-}
-
-float
-wvt_next(float (* wvt_fun)(float *, float, int), float freq, int sample_rate, float * wvt_index)
-{
-  float sample = wvt_fun(wvt_index, freq, sample_rate);
-  return sample;  
-}
-
-float
-wvt_saw(float * index, float freq, int sample_rate)
-{
-  return wvt_gen(&wvt_saw_data, index, freq, sample_rate);
-}
-
-float
-wvt_digisaw(float * index, float freq, int sample_rate)
-{
-  return wvt_gen(&wvt_digisaw_data, index, freq, sample_rate);
-}
-
-float
-wvt_sine(float * index, float freq, int sample_rate)
-{
-  return wvt_gen(&wvt_sine_data, index, freq, sample_rate);
-}
-
-float
-wvt_tri(float * index, float freq, int sample_rate)
-{
-  return wvt_gen(&wvt_tri_data, index, freq, sample_rate);
-}
-
-float
-wvt_sqr(float * index, float freq, int sample_rate)
-{
-  return wvt_gen(&wvt_sqr_data, index, freq, sample_rate);
-}
-
-float
-wvt_sound(float * index, float freq, int sample_rate)
-{
-  return wvt_gen(&wvt_sound_data, index, freq, sample_rate);
-}