static void PrintBlockInfo()

in Extended/libwebp/src/enc/quant_enc.c [54:120]

• 67 lines of code
• 20 McCabe index (conditional complexity)

static void PrintBlockInfo(const VP8EncIterator* const it,
                           const VP8ModeScore* const rd) {
  int i, j;
  const int is_i16 = (it->mb_->type_ == 1);
  const uint8_t* const y_in = it->yuv_in_ + Y_OFF_ENC;
  const uint8_t* const y_out = it->yuv_out_ + Y_OFF_ENC;
  const uint8_t* const uv_in = it->yuv_in_ + U_OFF_ENC;
  const uint8_t* const uv_out = it->yuv_out_ + U_OFF_ENC;
  printf("SOURCE / OUTPUT / ABS DELTA\n");
  for (j = 0; j < 16; ++j) {
    for (i = 0; i < 16; ++i) printf("%3d ", y_in[i + j * BPS]);
    printf("     ");
    for (i = 0; i < 16; ++i) printf("%3d ", y_out[i + j * BPS]);
    printf("     ");
    for (i = 0; i < 16; ++i) {
      printf("%1d ", abs(y_in[i + j * BPS] - y_out[i + j * BPS]));
    }
    printf("\n");
  }
  printf("\n");   // newline before the U/V block
  for (j = 0; j < 8; ++j) {
    for (i = 0; i < 8; ++i) printf("%3d ", uv_in[i + j * BPS]);
    printf(" ");
    for (i = 8; i < 16; ++i) printf("%3d ", uv_in[i + j * BPS]);
    printf("    ");
    for (i = 0; i < 8; ++i) printf("%3d ", uv_out[i + j * BPS]);
    printf(" ");
    for (i = 8; i < 16; ++i) printf("%3d ", uv_out[i + j * BPS]);
    printf("   ");
    for (i = 0; i < 8; ++i) {
      printf("%1d ", abs(uv_out[i + j * BPS] - uv_in[i + j * BPS]));
    }
    printf(" ");
    for (i = 8; i < 16; ++i) {
      printf("%1d ", abs(uv_out[i + j * BPS] - uv_in[i + j * BPS]));
    }
    printf("\n");
  }
  printf("\nD:%d SD:%d R:%d H:%d nz:0x%x score:%d\n",
    (int)rd->D, (int)rd->SD, (int)rd->R, (int)rd->H, (int)rd->nz,
    (int)rd->score);
  if (is_i16) {
    printf("Mode: %d\n", rd->mode_i16);
    printf("y_dc_levels:");
    for (i = 0; i < 16; ++i) printf("%3d ", rd->y_dc_levels[i]);
    printf("\n");
  } else {
    printf("Modes[16]: ");
    for (i = 0; i < 16; ++i) printf("%d ", rd->modes_i4[i]);
    printf("\n");
  }
  printf("y_ac_levels:\n");
  for (j = 0; j < 16; ++j) {
    for (i = is_i16 ? 1 : 0; i < 16; ++i) {
      printf("%4d ", rd->y_ac_levels[j][i]);
    }
    printf("\n");
  }
  printf("\n");
  printf("uv_levels (mode=%d):\n", rd->mode_uv);
  for (j = 0; j < 8; ++j) {
    for (i = 0; i < 16; ++i) {
      printf("%4d ", rd->uv_levels[j][i]);
    }
    printf("\n");
  }
}