glGetUniformBlockIndex method
Implementation
int glGetUniformBlockIndex(
  int program,
  ffi.Pointer<ffi.Int8> uniformBlockName,
) {
  return (_glGetUniformBlockIndex ??= _dylib.lookupFunction<
      _c_glGetUniformBlockIndex,
      _dart_glGetUniformBlockIndex>('glGetUniformBlockIndex'))(
    program,
    uniformBlockName,
  );
}