79 lines
3.5 KiB
Python
79 lines
3.5 KiB
Python
#!/usr/bin/python3
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"""
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Display a (possibly scaled) X display to a matrix
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The display runs until this script exits.
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The display doesn't get a keyboard or mouse, so you have to use a program that
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will get its input in some other way, such as from a gamepad.
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For help with commandline arguments, run `python xdisplay_mirror.py --help`
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This example command will mirror the entire display scaled onto a 2x2 grid of 64px panels, total matrix size 128x128.
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$ python xdisplay_mirror.py --pinout AdafruitMatrixHatBGR --width 128 --height 128 --serpentine --num-address-lines 5 --num-planes 8
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This example command will mirror a 128x128 pixel square from the top left of the display at real size on the same matrix panels
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$ python xdisplay_mirror.py --pinout AdafruitMatrixHatBGR --width 128 --height 128 --serpentine --num-address-lines 5 --num-planes 8 --mirror-region 0,0,128,128
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"""
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import click
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import numpy as np
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from PIL import Image, ImageGrab
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import adafruit_blinka_raspberry_pi5_piomatter as piomatter
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import adafruit_blinka_raspberry_pi5_piomatter.click as piomatter_click
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from adafruit_blinka_raspberry_pi5_piomatter.pixelmappers import simple_multilane_mapper
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RESAMPLE_MAP = {
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"nearest": Image.NEAREST,
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"bilinear": Image.BILINEAR,
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"lanczos": Image.LANCZOS,
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"bicubic": Image.BICUBIC
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}
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@click.command
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@click.option("--mirror-region", help="Region of X display to mirror. Comma seperated x,y,w,h. "
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"Default will mirror entire display.", default="")
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@click.option("--x-display", help="The X display to mirror. Default is :0", default=":0")
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@click.option("--resample-method", type=click.Choice(RESAMPLE_MAP), default="nearest",
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help="The resample method for PIL to use when resizing the screen image. Default is nearest")
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@piomatter_click.standard_options(n_lanes=2, n_temporal_planes=0)
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def main(width, height, serpentine, rotation, pinout, n_planes,
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n_temporal_planes, n_addr_lines, n_lanes, mirror_region, x_display, resample_method):
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if n_lanes != 2:
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pixelmap = simple_multilane_mapper(width, height, n_addr_lines, n_lanes)
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geometry = piomatter.Geometry(width=width, height=height, n_planes=n_planes, n_addr_lines=n_addr_lines,
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n_temporal_planes=n_temporal_planes, n_lanes=n_lanes, map=pixelmap)
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else:
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geometry = piomatter.Geometry(width=width, height=height, n_planes=n_planes, n_addr_lines=n_addr_lines,
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n_temporal_planes=n_temporal_planes, rotation=rotation)
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framebuffer = np.zeros(shape=(geometry.height, geometry.width, 3), dtype=np.uint8)
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matrix = piomatter.PioMatter(colorspace=piomatter.Colorspace.RGB888Packed, pinout=pinout, framebuffer=framebuffer,
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geometry=geometry)
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if mirror_region:
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mirror_region = tuple(int(_) for _ in mirror_region.split(','))
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else:
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mirror_region = None
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size_measure = ImageGrab.grab(xdisplay=":0")
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print(f"Mirroring full display: {size_measure.width}, {size_measure.height}")
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while True:
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img = ImageGrab.grab(xdisplay=x_display)
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if mirror_region is not None:
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img = img.crop((mirror_region[0], mirror_region[1], # left,top
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mirror_region[0] + mirror_region[2], # right
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mirror_region[1] + mirror_region[3])) # bottom
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img = img.resize((width, height), RESAMPLE_MAP[resample_method])
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framebuffer[:, :] = np.array(img)
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matrix.show()
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if __name__ == '__main__':
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main()
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