maandree / blueshift Goto Github PK

Hi, I'm excited to find this app. I run linux on a macbook and use xcalib to calibrate the lcd with the icc profile that came with the machine. Can you help me translate the info in the icc to settings appropriate for blueshift?

thx!

Why does RandR report smaller monitor dimension than DRM?
My monitors have a visible area of (a very small amount of
millimeters larger than) 400 mm by 300 mm (and a few extra
centimeters in both dimension that are covered by the edges
on the monitor casing.)

RandR reports 364 mm × 291 mm, while DRM accurately reports
400 mm × 300 mm.

It does not appear like GNU Hurd have an API
for modifying the gamma ramps yet.

It does not appear that Mir currently have
an API for modifying the gamma ramps.

I have not been able to compile Mir
(which is required for XMir) so I do not
know if XMir supports Blueshift.

X multiplies 1 byte values with 256 rather than 257. This means
that a value encoded FFh gets the output value FF00h rather tan
FFFFh. Why does X do it like this?

Haiku does not have currently have
support for modifying gamma ramps.

Also, last time I check Python 3 was
not available for Haiku.

If display servers had an way to intercept selected colours
and manipulate them, we could do things like manipulating
the colours' wavelength/frequency.

If this was implemented, we could also circumvent the
requirement of being able to adjust gamma ramps, however
will less precision.

Since updating my system yesterday (including updating xorg-* to 1.20), blueshift does not start for me, but crashes with this output:

$ blueshift -c /usr/share/doc/blueshift/examples/bedtime
Traceback (most recent call last):
  File "/usr/bin/blueshift/__main__.py", line 467, in continuous_run
  File "/usr/bin/blueshift/__main__.py", line 360, in p
  File "/usr/share/doc/blueshift/examples/bedtime", line 287, in periodically
    apply_curves()
  File "/usr/bin/blueshift/monitor.py", line 147, in randr
  File "/usr/bin/blueshift/monitor.py", line 80, in set_gamma
  File "/usr/lib/python3.6/libgamma_method.py", line 1116, in set_gamma
    raise create_error(r)
libgamma_error.LibgammaError: LIBGAMMA_GAMMA_RAMP_WRITE_FAILED

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/lib/python3.6/runpy.py", line 193, in _run_module_as_main
    "__main__", mod_spec)
  File "/usr/lib/python3.6/runpy.py", line 85, in _run_code
    exec(code, run_globals)
  File "/usr/bin/blueshift/__main__.py", line 742, in <module>
  File "/usr/bin/blueshift/__main__.py", line 546, in continuous_run
  File "/usr/share/doc/blueshift/examples/bedtime", line 310, in reset
    apply_curves()
  File "/usr/bin/blueshift/monitor.py", line 147, in randr
  File "/usr/bin/blueshift/monitor.py", line 80, in set_gamma
  File "/usr/lib/python3.6/libgamma_method.py", line 1116, in set_gamma
    raise create_error(r)
libgamma_error.LibgammaError: LIBGAMMA_GAMMA_RAMP_WRITE_FAILED
Exception ignored in: <bound method Site.__del__ of <libgamma_method.Site object at 0x7f6e9ad14fd0>>
Traceback (most recent call last):
  File "/usr/lib/python3.6/libgamma_method.py", line 947, in __del__
ImportError: sys.meta_path is None, Python is likely shutting down
Exception ignored in: <bound method Partition.__del__ of <libgamma_method.Partition object at 0x7f6e9ac7d3c8>>
Traceback (most recent call last):
  File "/usr/lib/python3.6/libgamma_method.py", line 1000, in __del__
ImportError: sys.meta_path is None, Python is likely shutting down
Exception ignored in: <bound method CRTC.__del__ of <libgamma_method.CRTC object at 0x7f6e9ac7d470>>
Traceback (most recent call last):
  File "/usr/lib/python3.6/libgamma_method.py", line 1046, in __del__
ImportError: sys.meta_path is None, Python is likely shutting down

I'm a newbie to linux, and I saw that your program has the ''darkroom mode'' option, which I always use when I'm using Windows. I have installed it via yaourt on antergos, but I don't know how to start it up in the terminal, or to say, how to ''open it'' so I can use the options. I saw you have provided information how to set up the darkroom mode, I just don't know with what to begin with.

Thankful for any information.

hello i install blueshift on arch using aur but when i want start i have this error:

No configuration file found

and dont see in description on github that i must create some file?

It does not appear that Wayland currently
have an API for modifying the gamma ramps.

XWayland does however support Blueshift
transparently.

It should not be, and it does not look to be, too difficult
to patch xserver to apply gamma ramps to hardware
cursors.

I think it should be possible to have blueshift read external brightness via a webcam or other optical sensor and adjust the brightness of the display, similar to the Android/iOS feature. There is already the program calise that does this, but I couldn't get it working satisfactorily on my system and feel the functionality would integrate well with blueshift.

Inspect the output of a monitor to determine the total brightness;
if there is only white on the monitor the total brightness is 1, and
if there is only black on the monitor the total brightness i 0.
This could be used to change the temperature, brightness or backlight
if the brightness suddenly changes significantly. For example, if I am
working in the terminal chances are that it is 90 % black, and if a
switch workspace to my mail there will be 90 % white. This change is
very unpleasent if you are use to a dark or low temperature output.

If this is implemented, it is important to remember that neither linear
RGB and sRGB can be used to calculate perceptual brightness. And
the in sRGB every pixel being at 188 is the same brightness as half
of the pixels being black and half of the pixels being white.

snap allows applications to run on any snap installed linux distro securely via jailed settings. it is easy to setup your applications as a snap package and it is easy to use for clients. This way anyone who want to try your app won't have doubts about security and this will happen without having to go through whole codebase to be sure. Not only it is more secure also it is way easier for end user to just click install on snapstore instead of compiling, installing, creating autostart etc. also thanks to snap apps will automatically upgrade on background without an effort.

Allow automatic approximate gamma correction. This can be done by parsing the monitor's EDID. If the monitors gamma is B, then the gamma correction is be around B÷2,2. This can be useful if you are planning to use Blueshift on random machines for which you do not know the calibration parameters; for example if you are in a computer laboratory room.