void resampler_process(rarch_resampler_t *re, struct resampler_data *data) { double r_step = 1.0 / data->ratio; size_t processed_out = 0; size_t in_frames = data->input_frames; const float *in_data = data->data_in; float *out_data = data->data_out; for (size_t i = 0; i < in_frames; i++) { while (re->r_frac <= 1.0) { re->r_frac += r_step; for (unsigned i = 0; i < CHANNELS; i++) { float res = hermite_kernel((float)re->r_frac, re->chan_data[i][0], re->chan_data[i][1], re->chan_data[i][2], re->chan_data[i][3]); *out_data++ = res; } processed_out++; } re->r_frac -= 1.0; for (unsigned i = 0; i < CHANNELS; i++) { re->chan_data[i][0] = re->chan_data[i][1]; re->chan_data[i][1] = re->chan_data[i][2]; re->chan_data[i][2] = re->chan_data[i][3]; re->chan_data[i][3] = *in_data++; } } data->output_frames = processed_out; }
static void resampler_hermite_process(void *re_, struct resampler_data *data) { rarch_hermite_resampler_t *re = (rarch_hermite_resampler_t*)re_; double r_step = 1.0 / data->ratio; size_t processed_out = 0; size_t in_frames = data->input_frames; const float *in_data = data->data_in; float *out_data = data->data_out; size_t i = 0; while (i < in_frames) { while (re->r_frac >= 1.0 && i < in_frames) { re->r_frac -= 1.0; for (unsigned c = 0; c < CHANNELS; c++) { re->chan_data[c][0] = re->chan_data[c][1]; re->chan_data[c][1] = re->chan_data[c][2]; re->chan_data[c][2] = re->chan_data[c][3]; re->chan_data[c][3] = *in_data++; } i++; } while (re->r_frac <= 1.0) { re->r_frac += r_step; for (unsigned c = 0; c < CHANNELS; c++) { float res = hermite_kernel((float)re->r_frac, re->chan_data[c][0], re->chan_data[c][1], re->chan_data[c][2], re->chan_data[c][3]); *out_data++ = res; } processed_out++; } } data->output_frames = processed_out; }