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@@ -1,71 +1,69 @@ -Request for contribution: +**Request for contribution:** - If anyone have a monitor with backlight - supported by xbacklight. src/blueshift_randr_c.c - needs to be extended to be able to read and set - backlight settings. src/blueshift_idcrtc.c can - be used as a starting point of the implementation. +If anyone have a monitor with backlight +supported by xbacklight. src/blueshift_randr_c.c +needs to be extended to be able to read and set +backlight settings. src/blueshift_idcrtc.c can +be used as a starting point of the implementation. +--- +Blueshift +--------- -Blueshift adjusts the colour temperature of your -monitor according to brightness outside to reduce -eye strain and make it easier to fall asleep when -going to bed. It can also be used to increase the -colour temperature and make the monitor bluer, -this helps you focus on your work. +Inspired by Redshift, Blueshift adjusts the colour +temperature of your monitor according to brightness +outside to reduce eye strain and make it easier to +fall asleep when going to bed. It can also be used +to increase the colour temperature and make the +monitor bluer, this helps you focus on your work. -Blueshift is inspired by Redshift but is vastly -more flexible and solves some problems with Redshift: +Blueshift is not user friendly and it is not meant +to be, although its user friendlyness is increasing. +Blueshift does offer limited use of command line +options to apply settings, but it is really meant +for you to have configuration files (written in +Python 3) where all the policies are implemented, +Blueshift is only meant to provide the mechanism for +modifying the colour curves. - - Decreases the colour temperature too early - during the winter which can make you tired - during daytime. - - - Limited support for settings such as - brightness and contrast. Technologies like - Blueshift and Redshift needs to remove all - settings made by other programs, to be - portable and to have get accuracy, which - means that you cannot any use other program - at the same time. Redshift supports only - gamman and a limited brightness range. - Blueshift can be extended by the user to - do anything and have built in support for - unlimited brightness, contrast, gamma - correction and S-curve correction. - Brightness and contrast are normally not - important because you should configure - that on the monitors control panel. But - one may want to temporarly so a change - to contrast to increase the brightness - beyond 100 %. Blueshift is to might - knowledge the first program to support - S-curve correction which is important - for LCD monitors which suffers the effects - of S-curves. - - - No support of ICC profiles. - -Blueshift is not user friendly and it is not -meant too be. Blueshift does offer limited -use of command line options to apply settings, -but it is really meant for you to have configuration -files (written in Python 3) where all the policies -are implemented, Blueshift is only meant to provide -the mechanism for modifying the colour curves. Blueshift neither provides any means of automatically -getting your geographical position; the intention is +getting your geographical location; the intention is that you should implement that in the policy yourself -using library which can do that. Additionally -Blueshift provides not safe guards from making your -screen unreadable or otherwise miscoloured; and -Blueshift will never, officially, add support -specifically for any proprietary operating system. -Blueshift is fully extensible so it is possible to -make extensions that make it usable under unsupported -systems, the base code is written in Python 3 without -calls to any system dependent functions. +using library which can do that. Additionally Blueshift +provides not safe guards from making your screen +unreadable or otherwise miscoloured; and Blueshift will +never, officially, add support specifically for any +proprietary operating system. Blueshift is fully +extensible so it is possible to make extensions that +make it usable under unsupported systems, the base code +is written in Python 3 without calls to any system +dependent functions (with exception for fallbacks.) +This is not necessarily true for configuration script +examples and optional features. + If Blueshift does not work for you for any of these -reasons, you should take a look at Redshift. +reasons, you should take a look at Redshift. The mean +reason for using Blueshift over Redshift is to add +adjustments that they implemented in Redshift or +using very customised behaviour, such as the example +configurations scripts sleepmode, xmobar and xmonad. + +Installing +---------- + +#### Manually + + make PREFIX=/usr/local LIBEXEC=/libexec/blueshift + sudo make PREFIX=/usr/local LIBEXEC=/libexec/blueshift install + sudo install-info /usr/local/share/info/{blueshift.info,dir} + +See `DEPENDENCIES` for dependencies, and `Makefile` for +additional installation options. + +On error make sure you do not have `--as-needed` in `LDFLAGS`. + +#### Arch Linux +Blueshift is available in the Arch User Repository, +under the name `blueshift`. |