91 lines
3.9 KiB
Markdown
91 lines
3.9 KiB
Markdown
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libXfont - X font handling library for server & utilities
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---------------------------------------------------------
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libXfont provides the core of the legacy X11 font system, handling the index
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files (fonts.dir, fonts.alias, fonts.scale), the various font file formats,
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and rasterizing them. It is used by the X servers, and will eventually be
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used by the X Font Server (xfs), but should not be used by normal X11 clients.
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X11 clients access fonts via either the new APIs in libXft, or the legacy
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APIs in libX11.
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This version of libXfont is not compatible with xfs, or with the legacy
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bdftopcf utility; these packages require libXfont 1.5, not libXfont 2.0
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or later. The two versions can be installed in parallel, and eventually
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the need for 1.5 will go away. We apologize for the inconvenience.
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libXfont supports a number of compression and font formats, and the
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configure script takes various options to enable or disable them:
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- Compression types:
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* gzip - always enabled, no option to disable, requires libz
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* bzip2 - disabled by default, enable via --with-bzip2, requires libbz2
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- Font formats:
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* builtins - copies of the "fixed" & "cursor" fonts required by the
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X protocol are built into the library so the X server always
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has the fonts it requires to start up. Accessed via the
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special 'built-ins' entry in the X server font path.
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Enabled by default, disable via --disable-builtins.
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* freetype - handles scalable font formats including OpenType, FreeType,
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and PostScript formats. Requires FreeType2 library.
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Can also be used to handle bdf & bitmap pcf font formats.
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Enabled by default, disable via --disable-freetype.
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* bdf bitmap fonts - text file format for distributing fonts, described
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in https://www.x.org/docs/BDF/bdf.pdf specification. Normally
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not used by the X server at runtime, as the fonts distributed
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by X.Org in bdf format are compiled with bdftopcf when
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installing/packaging them.
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Enabled by default, disable via --disable-bdfformat.
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* pcf bitmap fonts - standard bitmap font format since X11R5 in 1991,
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used for all bitmap fonts installed from X.Org packages.
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Compiled format is architecture independent.
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As noted above, usually produced by bdftopcf.
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Enabled by default, disable via --disable-pcfformat.
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* snf bitmap fonts - standard bitmap font format prior to X11R5 in 1991,
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remains only for backwards compatibility. Unlike pcf, snf files
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are architecture specific, and contain less font information
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than pcf files. snf fonts are deprecated and support for them
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may be removed in future libXfont releases.
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Disabled by default, enable via --disable-snfformat.
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- Font services:
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* xfs font servers - allows retreiving fonts as a client of an xfs server.
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Enabled by default, disable via --disable-fc (font client).
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If enabled, you can also use the standard libxtrans flags to
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configure which transports can be used to connect to xfs:
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--enable-unix-transport Enable UNIX domain socket transport
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--enable-tcp-transport Enable TCP socket transport (IPv4)
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--enable-ipv6 Enable IPv6 support for tcp-transport
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--enable-local-transport Enable os-specific local transport
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(Change --enable to --disable to force disabling support.)
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The default setting is to enable all of the transports the
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configure script can find OS support for.
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--------------------------------------------------------------------------
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All questions regarding this software should be directed at the
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Xorg mailing list:
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https://lists.x.org/mailman/listinfo/xorg
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The master development code repository can be found at:
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https://gitlab.freedesktop.org/xorg/lib/libXfont
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Please submit bug reports and requests to merge patches there.
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For patch submission instructions, see:
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https://www.x.org/wiki/Development/Documentation/SubmittingPatches
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