Method Load

Descent3/newui_core.cpp:714–772

loads bitmap and returns the object

// loads bitmap and returns the object
UIBitmapItem *newuiResources::Load(const char *filename) {
  UIBitmapItem *bmitem;
  int i, free_slot = -1;

  // do search for bitmap.
  for (i = 0; i < N_NEWUI_BMPS_TOTAL; i++) {
    if (m_list[i].n_count == 0) {
      if (free_slot == -1) {
        free_slot = i;
      }
    } else {
      if (stricmp(filename, m_list[i].filename) == 0) {
        break;
      }
    }
  }
  if (i == N_NEWUI_BMPS_TOTAL) {
    // perform load.
    int bm, chw, chh;

    if (free_slot == -1) {
      // reached limit.
      Int3();
      return NULL;
    }
    i = free_slot;

    bm = bm_AllocLoadFileBitmap(IGNORE_TABLE(filename), 0);
    if (bm < 0) {
      Error("NewUI: Failed to load bitmap %s", filename);
    }

    chw = bm_w(bm, 0);
    chh = bm_h(bm, 0);

    if ((chw == 32 && chh == 32) || (chw == 64 && chh == 64) || (chw == 128 && chh == 128)) {
      m_list[i].bm_handle = bm;
      m_list[i].chunked = 0;
    } else {
      // chunk it.
      bm_CreateChunkedBitmap(bm, &m_list[i].chunk);
      bm_FreeBitmap(bm);
      m_list[i].chunked = 1;
    }

    m_list[i].n_count = 0;
    m_list[i].filename = mem_strdup(filename);
  }

  m_list[i].n_count++;

  if (m_list[i].chunked) {
    bmitem = new UIBitmapItem(&m_list[i].chunk);
  } else {
    bmitem = new UIBitmapItem(m_list[i].bm_handle);
  }

  return bmitem;