Function PPic_BuildDatabases

Descent3/PilotPicsAPI.cpp:490–598

----------------------------------------------- PPic_BuildDatabase Purpose: Builds up some databases for fast access based off the index file. -----------------------------------------------

//	based off the index file.
// -----------------------------------------------
bool PPic_BuildDatabases(void) {
  CFILE *file = PilotPic_database_index_handle;
  if (!file)
    return false;

  // first rewind to the beginning and find out how many pilots we have
  // -------------------------------------------------------------------
  cf_Rewind(file);

  PilotPic_count = cf_ReadInt(file);
  if (PilotPic_count < 0) {
    // hmm a negative!
    mprintf(0, "PPIC: Invalid number of pilot pictures (%d)\n", PilotPic_count);
    Int3();
    PilotPic_count = 0;
    cf_Rewind(file);
    return false;
  }
  if (PilotPic_count > 65535) {
    // too many!!!!
    mprintf(0, "PPIC: Invalid number of pilot pictures (%d)\n", PilotPic_count);
    Int3();
    PilotPic_count = 0;
    cf_Rewind(file);
    return false;
  }

  // allocate all the memory we're going to need
  // -------------------------------------------
  Pilot_id_to_offset = (tPilotPicIdOffset *)mem_malloc(sizeof(tPilotPicIdOffset) * PilotPic_count);
  Sorted_Pilot_id_to_offset = (uint16_t *)mem_malloc(sizeof(uint16_t) * PilotPic_count);
  if (!Pilot_id_to_offset) {
    // out of memory!!!
    mprintf(0, "PPIC: Out of memory allocating index database\n");
    Int3();
    PilotPic_count = 0;
    cf_Rewind(file);
    return false;
  }

  // now it is time to go through the index file and build the databases
  // -------------------------------------------------------------------
  int count;
  char name_buffer[256];

  for (count = 0; count < 27; count++)
    Alphabet_to_offset[count] = -1;

  for (count = 0; count < PilotPic_count; count++) {

    // get the current file position, we'll need it
    int file_pos;
    file_pos = cftell(file);

    // first read in the pilot name
    uint8_t name_size;
    name_size = cf_ReadByte(file);
    cf_ReadBytes((uint8_t *)name_buffer, name_size, file);