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Merge pull request #32 from FoamyGuy/brightness_arg

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add brightness argument to virtualdisplay and xdisplay_mirror
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foamyguy 2025-03-13 16:08:05 -05:00 committed by GitHub
commit bf3409d92b
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2 changed files with 15 additions and 3 deletions
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9
examples/virtualdisplay.py
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@ -25,6 +25,7 @@ from subprocess import Popen
import click import click
import numpy as np import numpy as np
from PIL import ImageEnhance
from pyvirtualdisplay.smartdisplay import SmartDisplay from pyvirtualdisplay.smartdisplay import SmartDisplay
import adafruit_blinka_raspberry_pi5_piomatter as piomatter import adafruit_blinka_raspberry_pi5_piomatter as piomatter
@ -37,10 +38,12 @@ from adafruit_blinka_raspberry_pi5_piomatter.pixelmappers import simple_multilan
@click.option("--backend", help="The pyvirtualdisplay backend to use", default="xvfb") @click.option("--backend", help="The pyvirtualdisplay backend to use", default="xvfb")
@click.option("--extra-args", help="Extra arguments to pass to the backend server", default="") @click.option("--extra-args", help="Extra arguments to pass to the backend server", default="")
@click.option("--rfbport", help="The port number for the --backend xvnc", default=None, type=int) @click.option("--rfbport", help="The port number for the --backend xvnc", default=None, type=int)
@click.option("--brightness", help="The brightness factor of the image output to the matrix",
default=1.0, type=click.FloatRange(min=0.1, max=1.0))
@click.option("--use-xauth/--no-use-xauth", help="If a Xauthority file should be created", default=False) @click.option("--use-xauth/--no-use-xauth", help="If a Xauthority file should be created", default=False)
@piomatter_click.standard_options @piomatter_click.standard_options
@click.argument("command", nargs=-1) @click.argument("command", nargs=-1)
def main(scale, backend, use_xauth, extra_args, rfbport, width, height, serpentine, rotation, pinout, def main(scale, backend, use_xauth, extra_args, rfbport, brightness, width, height, serpentine, rotation, pinout,
n_planes, n_temporal_planes, n_addr_lines, n_lanes, command): n_planes, n_temporal_planes, n_addr_lines, n_lanes, command):
kwargs = {} kwargs = {}
if backend == "xvnc": if backend == "xvnc":
@ -61,8 +64,12 @@ def main(scale, backend, use_xauth, extra_args, rfbport, width, height, serpenti
with SmartDisplay(backend=backend, use_xauth=use_xauth, size=(round(width*scale),round(height*scale)), manage_global_env=False, **kwargs) as disp, Popen(command, env=disp.env()) as proc: with SmartDisplay(backend=backend, use_xauth=use_xauth, size=(round(width*scale),round(height*scale)), manage_global_env=False, **kwargs) as disp, Popen(command, env=disp.env()) as proc:
while proc.poll() is None: while proc.poll() is None:
img = disp.grab(autocrop=False) img = disp.grab(autocrop=False)
if img is None: if img is None:
continue continue
if brightness != 1.0:
darkener = ImageEnhance.Brightness(img)
img = darkener.enhance(brightness)
img = img.resize((width, height)) img = img.resize((width, height))
framebuffer[:, :] = np.array(img) framebuffer[:, :] = np.array(img)
matrix.show() matrix.show()

9
examples/xdisplay_mirror.py
View file

@ -20,7 +20,7 @@ This example command will mirror a 128x128 pixel square from the top left of the
import click import click
import numpy as np import numpy as np
from PIL import ImageGrab from PIL import ImageEnhance, ImageGrab
import adafruit_blinka_raspberry_pi5_piomatter as piomatter import adafruit_blinka_raspberry_pi5_piomatter as piomatter
import adafruit_blinka_raspberry_pi5_piomatter.click as piomatter_click import adafruit_blinka_raspberry_pi5_piomatter.click as piomatter_click
@ -31,9 +31,11 @@ from adafruit_blinka_raspberry_pi5_piomatter.pixelmappers import simple_multilan
@click.option("--mirror-region", help="Region of X display to mirror. Comma seperated x,y,w,h. " @click.option("--mirror-region", help="Region of X display to mirror. Comma seperated x,y,w,h. "
"Default will mirror entire display.", default="") "Default will mirror entire display.", default="")
@click.option("--x-display", help="The X display to mirror. Default is :0", default=":0") @click.option("--x-display", help="The X display to mirror. Default is :0", default=":0")
@click.option("--brightness", help="The brightness factor of the image output to the matrix",
default=1.0, type=click.FloatRange(min=0.1, max=1.0))
@piomatter_click.standard_options(n_lanes=2, n_temporal_planes=0) @piomatter_click.standard_options(n_lanes=2, n_temporal_planes=0)
def main(width, height, serpentine, rotation, pinout, n_planes, 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, brightness):
if n_lanes != 2: if n_lanes != 2:
pixelmap = simple_multilane_mapper(width, height, n_addr_lines, n_lanes) 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, geometry = piomatter.Geometry(width=width, height=height, n_planes=n_planes, n_addr_lines=n_addr_lines,
@ -59,6 +61,9 @@ def main(width, height, serpentine, rotation, pinout, n_planes,
img = img.crop((mirror_region[0], mirror_region[1], # left,top img = img.crop((mirror_region[0], mirror_region[1], # left,top
mirror_region[0] + mirror_region[2], # right mirror_region[0] + mirror_region[2], # right
mirror_region[1] + mirror_region[3])) # bottom mirror_region[1] + mirror_region[3])) # bottom
if brightness != 1.0:
darkener = ImageEnhance.Brightness(img)
img = darkener.enhance(brightness)
img = img.resize((width, height)) img = img.resize((width, height))
framebuffer[:, :] = np.array(img) framebuffer[:, :] = np.array(img)