Function bm_ClearBitmap

bitmap/bitmain.cpp:1405–1417

clears bitmap

// clears bitmap
void bm_ClearBitmap(int handle) {
  int dx, dy;
  // DAJ	int rowsize_w = bm_rowsize(handle,0) >> 1;
  uint16_t *bmpdata = bm_data(handle, 0);
  int w = bm_w(handle, 0);
  int h = bm_h(handle, 0);
  for (dy = 0; dy < h; dy++) {
    for (dx = 0; dx < w; dx++)
      bmpdata[dx] = NEW_TRANSPARENT_COLOR;

    bmpdata += w;
  }
}
// Given a bitmap handle, breaks a bitmap into smaller pieces.
// Note, this routine isn't terrible fast or efficient, and you
// must free the bitmaps returned to you in the bm_array