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backlight_images.py: Refactor and add comment #22

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Jan 6, 2025
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backlight_images.py: Refactor and add comment #22

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11 changes: 6 additions & 5 deletions examples/backlight_images.py
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Original file line number Diff line number Diff line change
Expand Up @@ -18,21 +18,22 @@
display = presto.display
WIDTH, HEIGHT = display.get_bounds()

# JPEG
# Setup JPEG decoder
j = jpegdec.JPEG(display)

flip = True

while True:

# Select opposite image to what's currently shown
if flip:
j.open_file(IMAGE_1)
j.decode(0, 0, jpegdec.JPEG_SCALE_FULL, dither=True)
flip = not flip

else:
j.open_file(IMAGE_2)
j.decode(0, 0, jpegdec.JPEG_SCALE_FULL, dither=True)
flip = not flip

j.decode(0, 0, jpegdec.JPEG_SCALE_FULL, dither=True)
flip = not flip

# Finally we update the screen with our changes :)
presto.update()
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