Commit graph

49 commits

Author SHA1 Message Date
Benjamin Staffin 64a9f5f0eb
fonts: fix fontconfig.localConf when used with penultimate
Fixes #31500
2017-11-10 16:57:45 -05:00
pbogdan 94a4183bda nixos/fontconfig: fix substitutions option (#28895) 2017-09-05 16:20:42 +00:00
Franz Pletz 3ab45f4b36
treewide: use boolToString function 2017-04-11 18:18:53 +02:00
Thomas Tuegel 2214b638a7
nixos/fonts: install gyre-fonts by default
gyre-fonts provides high-quality TrueType substitutes for standard PostScript
fonts. Unlike most other distributions, NixOS does not install Ghostscript and
its Type 1 fonts by default, so we must get the standard fonts elsewhere.
2017-04-08 09:33:21 -05:00
Thomas Tuegel d0954b5494
nixos/fontconfig-ultimate: Restore presets
The `preset` option was accidentally removed.
2017-04-08 08:22:01 -05:00
Thomas Tuegel 89bfa112cf
fontconfig-penultimate: 0.2.1 -> 0.3.2 2017-04-03 09:26:19 -05:00
Thomas Tuegel 03942659ca
nixos/fontconfig: remove renderMonoTTFAsBitmap 2017-04-03 08:24:32 -05:00
Thomas Tuegel 21c9190a5f
nixos/fontconfig: remove forceAutohint option 2017-04-03 08:23:32 -05:00
Thomas Tuegel 7a78892c47
nixos/fontconfig: disable autohint by default 2017-04-03 08:22:03 -05:00
Thomas Tuegel 1b0d9e9ae6 Merge pull request #23819 from ttuegel/freetype
FreeType 2.7.1 and Fontconfig defaults
2017-03-20 11:43:50 -05:00
Thomas Tuegel a6fce585e4
nixos/fontconfig: set rendering defaults, not overrides 2017-03-17 13:50:10 -05:00
Thomas Tuegel 354ea69ae4
fontconfig-penultimate: init at 0.2
Also provides a NixOS module.
2017-03-17 13:50:05 -05:00
Thomas Tuegel 65592837b6
freetype: 2.6.5 -> 2.7.1
The Infinality bytecode interpreter is removed in favor of the new v40 TrueType
interpreter. In the past, the Infinality interpreter provided support for
ClearType-style hinting instructions while the default interpreter (then v35)
provided support only for original TrueType-style instructions. The v40
interpreter corrects this deficiency, so the Infinality interpreter is no longer
necessary.

To understand why the Infinality interpreter is no longer necessary, we should
understand how ClearType differs from TrueType and how the v40 interpreter
works. The following is a summary of information available on the FreeType
website [1] mixed with my own editorializing.

TrueType instructions use horizontal and vertical hints to improve glyph
rendering. Before TrueType, fonts were only vertically hinted; horizontal hints
improved rendering by snapping stems to pixel boundaries. Horizontal hinting is
a risk because it can significantly distort glyph shapes and kerning. Extensive
testing at different resolutions is needed to perfect the TrueType
hints. Microsoft invested significant effort to do this with its "Core fonts for
the Web" project, but few other typefaces have seen this level of attention.

With the advent of subpixel rendering, the effective horizontal resolution of
most displays increased significantly. ClearType eschews horizontal hinting in
favor of horizontal supersampling. Most fonts are designed for the Microsoft
bytecode interpreter, which implements a compatibility mode with
TrueType-style (horizontal and vertical) instructions. However, applying the
full horizontal hints to subpixel-rendered fonts leads to color fringes and
inconsistent stem widths. The Infinality interpreter implements several
techniques to mitigate these problems, going so far as to embed font- and
glyph-specific hacks in the interpreter. On the other hand, the v40 interpreter
ignores the horizontal hinting instructions so that glyphs render as they are
intended to on the Microsoft interpreter. Without the horizontal hints, the
problems of glyph and kerning distortion, color fringes, and inconsistent stem
widths--the problems the Infinality interpreter was created to solve--simply
don't occur in the first place.

There are also security concerns which motivate removing the Infinality patches.
Although there is an updated version of the Infinality interpreter for FreeType
2.7, the lack of a consistent upstream maintainer is a security concern. The
interpreter is a Turing-complete virtual machine which has had security
vulnerabilities in the past. While the default interpreter is used in billions
of devices and is maintained by an active developer, the Infinality interpreter
is neither scrutinized nor maintained. We will probably never know if there are
defects in the Infinality interpreter, and if they were discovered they would
likely never be fixed. I do not think that is an acceptable situtation for a
core library like FreeType.

Dropping the Infinality patches means that font rendering will be less
customizable. I think this is an acceptable trade-off. The Infinality
interpreter made many compromises to mitigate the problems with horizontal
hinting; the main purpose of customization is to tailor these compromises to the
user's preferences. The new interpreter does not have to make these compromises
because it renders fonts as their designers intended, so this level of
customization is not necessary.

The Infinality-associated patches are also removed from cairo. These patches
only set the default rendering options in case they aren't set though
Fontconfig. On NixOS, the rendering options are always set in Fontconfig, so
these patches never actually did anything for us!

The Fontconfig test suite is patched to account for a quirk in the way PCF fonts
are named.

The fontconfig option `hintstyle` is no longer configurable in NixOS. This
option selects the TrueType interpreter; the v40 interpreter is `hintslight` and
the older v35 interpreter is `hintmedium` or `hintfull` (which have actually
always been the same thing). The setting may still be changed through the
`localConf` option or by creating a user Fontconfig file.

Users with HiDPI displays should probably disable hinting and antialiasing: at
best they have no visible effect.

The fontconfig-ultimate settings are still available in NixOS, but they are no
longer the default. They still work, but their main purpose is to set rendering
quirks which are no longer necessary and may actually be
detrimental (e.g. setting `hintfull` for some fonts). Also, the vast array of
font substitutions provided is not an appropriate default; the default setting
should be to give the user the font they asked for.

[1]. https://www.freetype.org/freetype2/docs/subpixel-hinting.html
2017-03-12 17:31:33 -05:00
Thomas Tuegel 286b007bd3
nixos/fontconfig: lift some settings out of fontconfig.ultimate 2017-03-04 14:59:24 -06:00
Eric Sagnes 61efe92e68 fontconfig module: use enum 2016-11-16 22:35:46 +09:00
Eelco Dolstra 5b5c2fb9c0 Make the default fonts conditional on services.xserver.enable
We were pulling in 44 MiB of fonts in the default configuration, which
is a bit excessive for headless configurations like EC2
instances. Note that dejavu_minimal ensures that remote X11-forwarded
applications still have a basic font regardless.
2016-09-05 15:51:37 +02:00
Vladimír Čunát 4f73633f26 treewide: stop using fontbhttf 2016-08-29 22:28:50 +02:00
Nikolay Amiantov f961fc7dd1 freetype: re-add infinality patches
archfan has updated those patches for the new version.
2016-08-20 03:21:05 +03:00
cmfwyp 1c7114da69 freetype: 2.6.2 -> 2.6.5
The fontconfig-ultimate patches are unmaintained. Since they were
not updated for newer FreeType versions, this removes them and
disables fontconfig-ultimate by default.
2016-08-20 03:21:05 +03:00
Nikolay Amiantov e3ab0826c2 fontconfig-ultimate: 2015-12-06 -> 2016-04-23
This removes our hardcoded presets which weren't updated for quite some time.
Infinality now has new hardcoded presets in freetype, which can be overriden if
desired with environment variables (as before). Accordingly, updated NixOS
module to set the hardcoded preset.

Additionally used a more "right" type for substitutions.
2016-08-20 03:21:05 +03:00
Eric Sagnes e80e8b9dc9 fontconfig module: respect upstream definitions 2016-08-20 03:21:05 +03:00
Eric Sagnes cd2948a72e fontconfig: fix etc priority 2016-08-20 03:21:05 +03:00
obadz cfc0a5415b Revert "fontconfig: fix etc priority"
This reverts commit 1e53d4a777.

Closes #16983

cc @vcunat @ericsagnes @dezgeg
2016-07-15 20:44:21 +02:00
Eric Sagnes 1e53d4a777 fontconfig: fix etc priority 2016-07-09 16:50:13 +02:00
Joachim Fasting b24e58a82b
config.fonts.fontdir: use runCommand instead of builderDefs
The primary motivation here is to get rid of builderDefs, but now the
resulting font directory is also linked into /run/current-system/sw,
which fixes #15194.
2016-05-26 22:39:01 +02:00
Vladimír Čunát ae74c356d9 Merge recent 'staging' into closure-size
Let's get rid of those merge conflicts.
2016-02-03 16:57:19 +01:00
Nikolay Amiantov 39b5bc3b2f fontconfig service: add pre-generated fonts caches 2016-01-29 14:41:26 +03:00
Vladimír Čunát f8c211fd2b fontconfig: split into multiple outputs
Fixed all 'fontconfig}' references as well, hopefully, ugh!
2015-10-05 12:23:56 +02:00
aszlig ebf1f51641
nixos/fonts: Add unifont to list of default fonts.
This fixes #10077 because after some debugging it turns out that by
default we don't have a font which is able to display Chinese symbols.

Thanks to @anderspapitto, @kmicu and hyper_ch on IRC to help debugging
this issue, see log at:

http://nixos.org/irc/logs/log.20150926 starting at 19:46

With unifont we have a reasonable fallback font to ensure that every
written language is rendered correctly and thus less surprise for new
users who keep their font settings at the default.

Reported-by: Anders Papitto <anderspapitto@gmail.com>
Signed-off-by: aszlig <aszlig@redmoonstudios.org>
2015-09-26 21:04:15 +02:00
Jan Malakhovski 6eadb16022 nixos: fix some types 2015-09-18 18:48:50 +00:00
Thomas Tuegel ba59ff2160 nixos/fontconfig: separate rendering and alias configuration
Fixes #9110. Fontconfig recommends different precedence for rendering
settings and generic alias settings. To comply with the recommendations,
`98-nixos.conf` has been separated into `10-nixos-rendering.conf` and
`60-nixos-generic-alias.conf`.
2015-08-04 12:15:29 -05:00
Eelco Dolstra 7edb27b7af Hide the option fonts.enableCoreFonts
We shouldn't have options that simply enable a package.
2015-06-01 10:43:43 +02:00
Nicolas B. Pierron 9f2865515d Fix infinite loop in fontconfig-ultimate.nix
With the new evaluation of arguments, pkgs is now defined by the
configuration, which implies that option declaration with pkgs.lib
will cause an infinite loop.
2015-03-12 23:42:58 +01:00
Thomas Tuegel 0fee7a2b21 fontconfig: stringify dpi correctly 2015-02-01 16:18:48 -06:00
Thomas Tuegel 32e41c2280 nixos: fix config.fonts.fontconfig.ultimate.allowBitmaps
The option was incorrectly negated, so that 'allowBitmaps = true'
actually disabled bitmap fonts.
2014-12-15 09:16:40 -06:00
Thomas Tuegel 9707ffd973 nixos: let fontconfig default fonts be lists of fonts 2014-12-08 10:55:24 -06:00
Thomas Tuegel 57ba2093bf Replace Bitstream Vera fonts by DejaVu in defaults
The default configuration installed the Bitstream Vera fonts, but DejaVu
is a superior replacement, and the default Fontconfig settings need it
now for the generic faces monospace, sans-serif, and serif.
2014-12-08 10:55:24 -06:00
Thomas Tuegel c00c563c66 Add NixOS module for fontconfig-ultimate
Details:
* The option `fonts.fontconfig.ultimate.enable` can be used to disable
  the fontconfig-ultimate configuration.
* The user-configurable options provided by fontconfig-ultimate are
  exposed in the NixOS module: `allowBitmaps` (default: true),
  `allowType1` (default: false), `useEmbeddedBitmaps` (default: false),
  `forceAutohint` (default: false), `renderMonoTTFAsBitmap` (default:
  false).
* Upstream provides three substitution modes for substituting TrueType
  fonts for Type 1 fonts (which do not render well). The default,
  "free", substitutes free fonts for Type 1 fonts. The option "ms"
  substitutions Microsoft fonts for Type 1 fonts. The option "combi"
  uses a combination of Microsoft and free fonts. Substitutions can also
  be disabled.
* All 21 of the Infinality rendering modes supported by fontconfig-ultimate
  or by the original Infinality distribution can be selected through
  `fonts.fontconfig.ultimate.rendering`. The default is the medium style
  provided by fontconfig-ultimate. Any of the modes may be customized,
  or Infinality rendering can be disabled entirely.
2014-12-08 10:55:24 -06:00
Thomas Tuegel 1df1305a8a Rewrite Fontconfig NixOS module
Details:
* The option `fonts.enableFontConfig` has (finally) been renamed
  `fonts.fontconfig.enable`.
* Configurations are loaded in this order: first the Fontconfig-upstream
  configuration is loaded, then the NixOS-specific font directories are
  set, the system-wide default configuration is loaded, and finally the
  user configuration is loaded (if enabled).
* The NixOS options `fonts.fontconfig.defaultFonts.monospace`,
  `fonts.fontconfig.defaultFonts.sansSerif` and
  `fonts.fontconfig.defaultFonts.serif` are added to allow setting the
  default system-wide font used for these generic faces. The defaults
  are the appropriate faces from the DejaVu collection because of their
  comprehensive Unicode coverage, clean rendering, and excellent
  legibility.
* The NixOS option `fonts.fontconfig.antialias` can be used to disable
  antialiasing (it is enabled by default).
* The options `fonts.fontconfig.subpixel.rgba` and
  `fonts.fontconfig.subpixel.lcdfilter` control the system-wide default
  settings for subpixel order and LCD filtering algorithm,
  respectively.
* `fonts.fontconfig.hinting.enable` can be used to disable TrueType font
  hinting (it is enabled by default).
  `fonts.fontconfig.hinting.autohint` controls the FreeType autohinter.
  `fonts.fontconfig.hinting.style` controls the hint style; it is "full"
  by default.
* User configurations can be disabled system-wide by setting
  `fonts.fontconfig.includeUserConf = false`. They are enabled by
  default so users can set Fontconfig options in the desktop environment
  of their choice.
2014-12-08 10:55:23 -06:00
Vladimír Čunát c0e2aceef4 fontconfig: patch and document 2014-11-05 12:12:30 +01:00
Luca Bruno 0927405a37 fontconfig: update 2.10.2 -> 2.11.1. Close #4410, #2050 2014-10-23 10:40:26 +02:00
Vladimír Čunát e4436ad841 FONTCONFIG_FILE: remove setters to /etc/fonts/fonts.conf
Any reasonably new version of fontconfig does search that path by default,
and setting this globally causes problems, as 2.10 and 2.11 need
incompatible configs.

Tested: slim+xfce desktop, chrootenv-ed steam.
I have no idea why we were setting the global variable;
e.g., neither Fedora nor Ubuntu does that.
2014-10-05 17:05:27 +02:00
aszlig 8a56a55bb4
nixos/manual: Use literalExample when feasible.
Should bring most of the examples into a better consistency regarding
syntactic representation in the manual.

Thanks to @devhell for reporting.

Signed-off-by: aszlig <aszlig@redmoonstudios.org>
2014-08-27 23:41:15 +02:00
Eelco Dolstra 58226a7b06 Add type for fonts.fonts option 2014-05-22 14:20:23 +02:00
Eelco Dolstra e6b5c0121f Obsolete fonts.extraFonts
You can now just set fonts.fonts, which will be merged with the
default value unless you use mkOverride.
2014-04-29 12:34:57 +02:00
Eelco Dolstra d6c2dcd98c Remove redundant ~/.fonts element from the font search path 2014-04-29 12:27:03 +02:00
Eelco Dolstra 29027fd1e1 Rewrite ‘with pkgs.lib’ -> ‘with lib’
Using pkgs.lib on the spine of module evaluation is problematic
because the pkgs argument depends on the result of module
evaluation. To prevent an infinite recursion, pkgs and some of the
modules are evaluated twice, which is inefficient. Using ‘with lib’
prevents this problem.
2014-04-14 16:26:48 +02:00
Eelco Dolstra 70a2c54527 Strictly check the arguments to mkOption
And fix various instances of bad arguments.
2013-10-30 15:35:09 +01:00
Eelco Dolstra 5c1f8cbc70 Move all of NixOS to nixos/ in preparation of the repository merge 2013-10-10 13:28:20 +02:00