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;
}
