def _get_fullscreen(self):
mp = mmal.MMAL_DISPLAYREGION_T(
mmal.MMAL_PARAMETER_HEADER_T(mmal.MMAL_PARAMETER_DISPLAYREGION,
ct.sizeof(mmal.MMAL_DISPLAYREGION_T)))
mmal_check(mmal.mmal_port_parameter_get(self.renderer[0].input[0],
mp.hdr),
prefix="Failed to get fullscreen")
return mp.fullscreen != mmal.MMAL_FALSE
def _set_fullscreen(self, value):
mp = mmal.MMAL_DISPLAYREGION_T(mmal.MMAL_PARAMETER_HEADER_T(
mmal.MMAL_PARAMETER_DISPLAYREGION,
ct.sizeof(mmal.MMAL_DISPLAYREGION_T)),
set=mmal.MMAL_DISPLAY_SET_FULLSCREEN,
fullscreen=bool(value))
mmal_check(mmal.mmal_port_parameter_set(self.renderer[0].input[0],
mp.hdr),
prefix="Failed to set fullscreen")
def _set_transform(self, value):
mp = mmal.MMAL_DISPLAYREGION_T(
mmal.MMAL_PARAMETER_HEADER_T(mmal.MMAL_PARAMETER_DISPLAYREGION,
ct.sizeof(mmal.MMAL_DISPLAYREGION_T)),
set=mmal.MMAL_DISPLAY_SET_TRANSFORM,
transform=value,
)
mmal_check(mmal.mmal_port_parameter_set(self.renderer[0].input[0],
mp.hdr),
prefix="Failed to set transform")
def _get_crop(self):
mp = mmal.MMAL_DISPLAYREGION_T(
mmal.MMAL_PARAMETER_HEADER_T(mmal.MMAL_PARAMETER_DISPLAYREGION,
ct.sizeof(mmal.MMAL_DISPLAYREGION_T)))
mmal_check(mmal.mmal_port_parameter_get(self.renderer[0].input[0],
mp.hdr),
prefix="Failed to get crop")
return (
mp.src_rect.x,
mp.src_rect.y,
mp.src_rect.width,
mp.src_rect.height,
)
def _set_crop(self, value):
try:
x, y, w, h = value
except (TypeError, ValueError) as e:
raise PiCameraValueError(
"Invalid crop rectangle (x, y, w, h) tuple: %s" % value)
mp = mmal.MMAL_DISPLAYREGION_T(
mmal.MMAL_PARAMETER_HEADER_T(mmal.MMAL_PARAMETER_DISPLAYREGION,
ct.sizeof(mmal.MMAL_DISPLAYREGION_T)),
set=mmal.MMAL_DISPLAY_SET_SRC_RECT,
src_rect=mmal.MMAL_RECT_T(x, y, w, h),
)
mmal_check(mmal.mmal_port_parameter_set(self.renderer[0].input[0],
mp.hdr),
prefix="Failed to set crop")
def _set_layer(self, value):
try:
if not (0 <= value <= 255):
raise PiCameraValueError(
"Invalid layer value: %d (valid range 0..255)" % value)
except TypeError:
raise PiCameraValueError("Invalid layer value: %s" % value)
mp = mmal.MMAL_DISPLAYREGION_T(mmal.MMAL_PARAMETER_HEADER_T(
mmal.MMAL_PARAMETER_DISPLAYREGION,
ct.sizeof(mmal.MMAL_DISPLAYREGION_T)),
set=mmal.MMAL_DISPLAY_SET_LAYER,
layer=value)
mmal_check(mmal.mmal_port_parameter_set(self.renderer[0].input[0],
mp.hdr),
prefix="Failed to set layer")
