C++ (Cpp) poly_create_3 примеры использования

Пример #1

Файл: resampler.c Проект: CatalystG/snes9x-next

static uint32_t resampler_process(resampler_t *state, uint32_t frames, float *out_data)
{
    uint32_t frames_used = 0;
    uint64_t pos_out;
    double pos_in = 0.0;

    for (uint64_t x = state->sum_output_frames; x < state->sum_output_frames + frames; x++)
    {
        pos_out = x - state->sum_output_frames;
        pos_in  = ((double)x / state->ratio) - (double)state->sum_input_frames;
        float poly[3];
        float data[3];
        float x_val;

        if ((int)pos_in == 0)
        {
            data[0] = state->data[0];
            data[1] = state->data[AUDIO_CHANNELS];
            data[2] = state->data[2 + AUDIO_CHANNELS];
            x_val = pos_in;
        }
        else
        {
            data[0] = state->data[((int)pos_in - 1) * AUDIO_CHANNELS];
            data[1] = state->data[((int)pos_in + 0) * AUDIO_CHANNELS];
            data[2] = state->data[((int)pos_in + 1) * AUDIO_CHANNELS];
            x_val = pos_in - (int)pos_in + 1.0;
        }

        poly_create_3(poly, data);

        out_data[pos_out * AUDIO_CHANNELS] = poly[2] * x_val * x_val + poly[1] * x_val + poly[0];

        float poly1[3];
        float data1[3];
        float x_val1;

        if ((int)pos_in == 0)
        {
            data1[0] = state->data[1];
            data1[1] = state->data[AUDIO_CHANNELS + 1];
            data1[2] = state->data[5];
            x_val1 = pos_in;
        }
        else
        {
            data1[0] = state->data[((int)pos_in - 1) * AUDIO_CHANNELS + 1];
            data1[1] = state->data[((int)pos_in + 0) * AUDIO_CHANNELS + 1];
            data1[2] = state->data[((int)pos_in + 1) * AUDIO_CHANNELS + 1];
            x_val1 = pos_in - (int)pos_in + 1.0;
        }

        poly_create_3(poly1, data);

        out_data[pos_out * AUDIO_CHANNELS + 1] = poly1[2] * x_val1 * x_val1 + poly1[1] * x_val1 + poly1[0];
    }
    frames_used = (int)pos_in;
    return frames_used;
}

Пример #2

Файл: resampler.c Проект: PS3emulators/fba-next-slim

static uint32_t resampler_process(resampler_t *state, uint32_t frames, float *out_data)
{
   uint32_t frames_used = 0;
   uint64_t pos_out;
   double pos_in = 0.0;

   for (uint64_t x = state->sum_output_frames; x < state->sum_output_frames + frames; x++)
   {
      pos_out = x - state->sum_output_frames;
      pos_in  = ((double)x / state->ratio) - (double)state->sum_input_frames;
      for (int c = 0; c < state->channels; c++)
      {
         float poly[3];
         float data[3];
         float x_val;

         if ((int)pos_in == 0)
         {
            data[0] = state->data[0 * state->channels + c];
            data[1] = state->data[1 * state->channels + c];
            data[2] = state->data[2 * state->channels + c];
            x_val = pos_in;
         }
         else
         {
            data[0] = state->data[((int)pos_in - 1) * state->channels + c];
            data[1] = state->data[((int)pos_in + 0) * state->channels + c];
            data[2] = state->data[((int)pos_in + 1) * state->channels + c];
            x_val = pos_in - (int)pos_in + 1.0;
         }

         poly_create_3(poly, data);
         
         out_data[pos_out * state->channels + c] = poly[2] * x_val * x_val + poly[1] * x_val + poly[0];
      }
   }
   frames_used = (int)pos_in;
   return frames_used;
}