Function ReadCompressionShort

Descent3/LoadLevel.cpp:2398–2430

}

void ReadCompressionShort(CFILE *fp, uint16_t *vals, int total) {
  int count = 0;

  uint8_t compressed = cf_ReadByte(fp);

  if (compressed == 0) {
    for (int i = 0; i < total; i++)
      vals[i] = cf_ReadShort(fp);

    return;
  }

  while (count != total) {
    ASSERT(count < total);
    uint8_t command = cf_ReadByte(fp);

    if (command == 0) // next byte is raw
    {
      uint16_t height = cf_ReadShort(fp);

      vals[count] = height;
      count++;
    } else if (command >= 2 && command <= 250) // next pixel is run of pixels
    {
      uint16_t height = cf_ReadShort(fp);
      for (int k = 0; k < command; k++) {
        vals[count] = height;
        count++;
      }
    } else
      Int3(); // bad compression run
  }
}

// Reads a room from a disk file
// Parameters:	ifile - file to read from