def __init__(self, display_facade, output_dir):
"""Initializes the MirrorComparer objects.
@param display_facade: A display facade object
@param output_dir: The directory for output images.
"""
self._display_facade = display_facade
int_capturer = screen_capture.CrosInternalScreenCapturer(
display_facade)
ext_capturer = screen_capture.CrosExternalScreenCapturer(
display_facade)
# The frame buffers of screens should be perfectly matched.
self._screen_comparer = screen_comparison.ScreenComparer(
int_capturer, ext_capturer, output_dir, 0, 0)
def create_calibration_comparer(self, output_dir):
"""Creates a comparer to check between Chameleon and calibration image.
@param output_dir: The directory the image files output to.
"""
if self._is_vga:
pixel_diff_margin = self._PIXEL_DIFF_MARGIN_FOR_ANALOG
wrong_pixels_margin = self._WRONG_PIXELS_MARGIN_FOR_ANALOG
else:
pixel_diff_margin = self._PIXEL_DIFF_MARGIN_FOR_CALIBRATION
wrong_pixels_margin = self._WRONG_PIXELS_MARGIN_FOR_CALIBRATION
capturer1 = self.create_chameleon_screen_capturer()
capturer2 = self.create_calibration_image_capturer()
return screen_comparison.ScreenComparer(capturer1, capturer2,
output_dir, pixel_diff_margin,
wrong_pixels_margin)
def create_screen_comparer(self, output_dir):
"""Creates a screen comparer.
@param output_dir: The directory the image files output to.
"""
if self._is_vga:
pixel_diff_margin = self._PIXEL_DIFF_MARGIN_FOR_ANALOG
wrong_pixels_margin = self._WRONG_PIXELS_MARGIN_FOR_ANALOG
else:
pixel_diff_margin = self._PIXEL_DIFF_MARGIN_FOR_DIGITAL
wrong_pixels_margin = self._WRONG_PIXELS_MARGIN_FOR_DIGITAL
capturer1 = self.create_chameleon_screen_capturer()
capturer2 = self.create_cros_screen_capturer()
return screen_comparison.ScreenComparer(capturer1, capturer2,
output_dir, pixel_diff_margin,
wrong_pixels_margin)