Exemple #1
0
  private byte readImageDescriptor(InputStream is) throws Exception {
    int nindex = 0;
    byte ides[] = new byte[9];

    IOUtils.readFully(is, ides, 0, 9);

    image_x = (ides[nindex++] & 0xff) | ((ides[nindex++] & 0xff) << 8);
    image_y = (ides[nindex++] & 0xff) | ((ides[nindex++] & 0xff) << 8);
    width = (ides[nindex++] & 0xff) | ((ides[nindex++] & 0xff) << 8);
    height = (ides[nindex++] & 0xff) | ((ides[nindex++] & 0xff) << 8);

    return ides[nindex++];
  }
Exemple #2
0
  private void readLocalPalette(InputStream is, int num_of_color) throws Exception {
    int index1 = 0;
    int bytes2read = num_of_color * 3;
    byte brgb[] = new byte[bytes2read];
    IOUtils.readFully(is, brgb, 0, bytes2read);

    rgbColorPalette = new int[num_of_color];

    for (int i = 0; i < num_of_color; i++)
      rgbColorPalette[i] =
          ((255 << 24)
              | ((brgb[index1++] & 0xff) << 16)
              | ((brgb[index1++] & 0xff) << 8)
              | (brgb[index1++] & 0xff));
  }
Exemple #3
0
    void readHeader(InputStream is) throws Exception {
      int nindex = 0;
      byte bhdr[] = new byte[13];

      IOUtils.readFully(is, bhdr, 0, 13);

      for (int i = 0; i < 3; i++) signature[i] = bhdr[nindex++];

      for (int i = 0; i < 3; i++) version[i] = bhdr[nindex++];

      screen_width = ((bhdr[nindex++] & 0xff) | ((bhdr[nindex++] & 0xff) << 8));
      screen_height = ((bhdr[nindex++] & 0xff) | ((bhdr[nindex++] & 0xff) << 8));
      flags = bhdr[nindex++];
      bgcolor = bhdr[nindex++];
      aspectRatio = bhdr[nindex++];
      // The end
    }