def insert(self, doc, synced=False):
        doc.id = self.get_next_id()
        doc.synced = synced
        try:
            self.db.docs.insert(doc)
        except Exception as e:
            raise DatabaseException(e)
        return doc
def create_texture():
  global rgbtex
  rgbtex = glGenTextures(1)
  glBindTexture(TEXTURE_TARGET, rgbtex)
  glTexImage2D(TEXTURE_TARGET,0,GL_RGB,640,480,0,GL_RGB,GL_UNSIGNED_BYTE,None)