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add a way to specify resample method for xdisplay_mirror

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foamyguy 2025-03-12 10:55:21 -05:00
parent ac6b65f23b
commit 9a4ed78ca6
1 changed files with 21 additions and 5 deletions
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26
examples/xdisplay_mirror.py
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@ -20,20 +20,35 @@ This example command will mirror a 128x128 pixel square from the top left of the
import click
import numpy as np
from PIL import ImageGrab
from PIL import Image, ImageGrab
import adafruit_blinka_raspberry_pi5_piomatter as piomatter
import adafruit_blinka_raspberry_pi5_piomatter.click as piomatter_click
from adafruit_blinka_raspberry_pi5_piomatter.pixelmappers import simple_multilane_mapper
RESAMPLE_MAP = {
"nearest": Image.NEAREST,
"bilinear": Image.BILINEAR,
"lanczos": Image.LANCZOS,
"bicubic": Image.BICUBIC
}
@click.command
@click.option("--mirror-region", help="Region of X display to mirror. Comma seperated x,y,w,h. "
"Default will mirror entire display.", default="")
@click.option("--x-display", help="The X display to mirror. Default is :0", default=":0")
@click.option("--resample-method",
help="The resample method for PIL to use when resizing the screen image."
"Valid values are: nearest, bilinear, lanczos, and bicubic. Default is nearest",
default="nearest")
@piomatter_click.standard_options(n_lanes=2, n_temporal_planes=0)
def main(width, height, serpentine, rotation, pinout, n_planes,
n_temporal_planes, n_addr_lines, n_lanes, mirror_region, x_display):
n_temporal_planes, n_addr_lines, n_lanes, mirror_region, x_display, resample_method):
if resample_method not in RESAMPLE_MAP.keys():
raise ValueError(f"--resample-method must be one of: {RESAMPLE_MAP.keys()}")
if n_lanes != 2:
pixelmap = simple_multilane_mapper(width, height, n_addr_lines, n_lanes)
geometry = piomatter.Geometry(width=width, height=height, n_planes=n_planes, n_addr_lines=n_addr_lines,
@ -56,13 +71,14 @@ def main(width, height, serpentine, rotation, pinout, n_planes,
while True:
img = ImageGrab.grab(xdisplay=x_display)
if mirror_region is not None:
img = img.crop((mirror_region[0], mirror_region[1], # left,top
mirror_region[0] + mirror_region[2], # right
img = img.crop((mirror_region[0], mirror_region[1], # left,top
mirror_region[0] + mirror_region[2], # right
mirror_region[1] + mirror_region[3])) # bottom
img = img.resize((width, height))
img = img.resize((width, height), RESAMPLE_MAP[resample_method])
framebuffer[:, :] = np.array(img)
matrix.show()
if __name__ == '__main__':
main()