Function ReadLightmapChunk

Descent3/LoadLevel.cpp:2758–2874

Reads info about our lightmaps

// Reads info about our lightmaps
void ReadLightmapChunk(CFILE *fp, int version) {
  // Don't read lightmaps for dedicated server
  if (Dedicated_server) {
    Num_lightmap_infos_read = 0; // I don't think this will be used, but clear it just in case
    return;
  }

  int nummaps;
  int i, t;
  uint16_t *ded_dummy_data = NULL;

  if (Dedicated_server) {
    ded_dummy_data = (uint16_t *)mem_malloc(128 * 128 * 2);
    ASSERT(ded_dummy_data);
  }

  nummaps = cf_ReadInt(fp);
  Num_lightmap_infos_read = nummaps;
  ASSERT(nummaps < MAX_LIGHTMAP_INFOS);

  for (i = 0; i < nummaps; i++) {

    if ((i % 10) == 0) {
      LoadLevelProgress(LOAD_PROGRESS_LOADING_LEVEL,
                        (filelen) ? (float)chunk_start + (chunk_size / nummaps) / (float)filelen : 0.0f,
                        CHUNK_LIGHTMAPS);
    }
    int w, h, lmi;
    uint8_t type;

    w = cf_ReadInt(fp);
    h = cf_ReadInt(fp);
    type = cf_ReadByte(fp);

    if (!Dedicated_server) {
      lmi = AllocLightmapInfo(w, h, type);
      ASSERT(lmi != BAD_LMI_INDEX);
      LightmapInfoRemap[i] = lmi;
    }

    if (version <= 38) {
      LightmapInfo[lmi].xspacing = (float)cf_ReadByte(fp);
      LightmapInfo[lmi].yspacing = (float)cf_ReadByte(fp);
    } else if (version < 66) {
      LightmapInfo[lmi].xspacing = cf_ReadFloat(fp);
      LightmapInfo[lmi].yspacing = cf_ReadFloat(fp);
    } else {
      int x, y;

      x = cf_ReadByte(fp);
      y = cf_ReadByte(fp);

      if (!Dedicated_server) {
        LightmapInfo[lmi].xspacing = x;
        LightmapInfo[lmi].yspacing = y;
      }
    }
    vector v;