Function d3d_GetNumOfBits

legacy/renderer/Direct3D.cpp:510–518

Returns the number of bits used in a mask

// Returns the number of bits used in a mask
WORD d3d_GetNumOfBits(DWORD dwMask) {
  WORD wBits = 0;
  while (dwMask) {
    dwMask = dwMask & (dwMask - 1);
    wBits++;
  }

  return wBits;
}

int d3d_GetTexClass(int handle, int map_type) {
  int w, tex_class;