crtc.py 文件源码

def fetch(self):
        arg = DrmModeCrtcC()
        arg.crtc_id = self.id

        fcntl.ioctl(self._drm.fd, DRM_IOCTL_MODE_GETCRTC, arg)

        self._arg = arg
        if arg.fb_id:
            self.fb = self._drm.get_framebuffer(arg.fb_id)
        else:
            self.fb = None
        self.x = int(arg.x)
        self.y = int(arg.y)
        self.gamma_size = int(arg.gamma_size)
        self.mode_valid = bool(arg.mode_valid)
        if self.mode_valid:
            self.mode = DrmMode(arg.mode)
            self.width = self.mode.hdisplay
            self.height = self.mode.vdisplay
        else:
            self.mode = None
            self.width = 0
            self.height = 0