Method Load

plugin/seq/pcm.cpp:156–226

}

void PCM::Load(const char *filename) {
  char token[TOKEN_SIZE];
  ifstream input_stream(filename, BINARY_IN);

  if (!input_stream) {
    fatal_error("PCM::Load -> file not found.");
  }

  // check magic number
  extract_token(input_stream, token, TOKEN_SIZE);
  if (strcmp(token, "PC") != 0) {
    fprintf(stderr, "Magic number \"%s\" != PC\n", token);
    fatal_error("PCM::Load -> bad magic number");
  }

  // get dimensions
  extract_token(input_stream, token, TOKEN_SIZE);
  width = atoi(token);
  extract_token(input_stream, token, TOKEN_SIZE);
  height = atoi(token);
  extract_token(input_stream, token, TOKEN_SIZE);
  max = atof(token);
  cout << " pcm : " << width << "x" << height << "  max :" << max << endl;
  // Reallocate memory, if necessary.
  unsigned long p = (long)(width * height);
  if (p != pixels) {
    pixels = p;
    if (image) {
      delete[] image;
      image = NULL;
    }
  }

  if (!image) {
    image = new pcm_complex[pixels];
  }

  // skip max cols
  extract_token(input_stream, token, TOKEN_SIZE);
  char ch;
  input_stream.read((char *)&ch, sizeof(char));

  // if machine is big endian then we need to convert floats from little endian
  void (*endian_filter)(float *);
  int i4 = 1;
  char zero_is_little_endian = *((static_cast< const char * >((void *)&i4)) + 3);

  if (zero_is_little_endian == 0) {
    endian_filter = (void (*)(float *))do_nothing;
  } else {
    endian_filter = (void (*)(float *))swap_float_endian;
  }

  // read data
  for (int y = 0; y < height; y++) {
    for (int x = 0; x < width; x++) {
      pcm_complex c;
      input_stream.read((char *)(void *)&c.r, sizeof(c.r));