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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"https://www.w3.org/TR/html4/loose.dtd">
<html lang="en">
<head>
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<meta name="description"
content="FreeType Development">
<meta name="keywords"
content="FreeType fonts renderer TrueType OpenType Type1
TTF OTF TTC library free fast quality">
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href="image/favicon_-60.ico">
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src="js/freetype2.js">
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<title>FreeType Development</title>
</head>
<body>
<div id="top"
class="bar">
<h1><a href="index.html">FreeType</a> Development</h1>
</div>
<div id="wrapper">
<div class="colmask leftmenu">
<div class="colright">
<div class="col1wrap">
<div class="col1">
<!-- ************************************************** -->
<div id="source-code">
<h2>Accessing the Source Code</h2>
<p>There are several ways to access the source code for the
FreeType packages.</p>
<ul>
<li class="emph">
<p><a href="download.html">Download a source
archive</a></p>
<p>This is for browsing, compiling, and using the source
code locally.</p>
</li>
<li class="emph">
<p>Use git access</p>
<p>FreeType's git repositories are available
from <a href="https://gitlab.freedesktop.org/freetype">freedesktop.org's
gitlab instance</a>.</p>
<div class="quote">
<tt>git clone https://gitlab.freedesktop.org/freetype/freetype.git<br>
git clone https://gitlab.freedesktop.org/freetype/freetype-demos.git</tt>
</div>
</li>
<li class="emph">
<p>Use anonymous CVS access</p>
<p>Other, no longer maintained FreeType repositories
(which exist for historical interest only) can be
downloaded
from <a href="https://savannah.nongnu.org/">Savannah</a>
through CVS and
viewed <a href="https://cvs.savannah.gnu.org/viewvc/?root=freetype">here</a>.
Use the following value for the <tt>CVSROOT</tt>
environment variable (or the equivalent <tt>-d</tt>
command line option of the cvs client):</p>
<div class="quote">
<tt>:pserver:anonymous@cvs.sv.nongnu.org:/sources/freetype</tt>
</div>
<p>When asked for a password, simply press Enter
for <tt>cvs login</tt>. The module names
are <tt>freetype</tt> (Freetype version 1.x,
C code), <tt>freetype1-contrib</tt> (contributed
programs), and <tt>ftpascal</tt> (Freetype
version 1.x, Pascal code).</p>
<p>The <tt>freetype2</tt> and <tt>ft2demos</tt> modules
have been transformed to git (see above) and shouldn't
be used anymore.</p>
</li>
</ul>
</div>
<!-- ************************************************** -->
<div id="bug-report">
<h2>Reporting a Bug</h2>
<p>In case you find a bug, which you think is related to
FreeType, please check the problematic font with one of
our demo programs, for example <b>ftview</b>
or <b>ftstring</b>. In case the problem persists, consult
<a href="https://gitlab.freedesktop.org/groups/freetype/-/issues">FreeType's
issue list</a> to find out whether the problem has been
reported already. Otherwise, please submit a new issue.
It is helpful to use the git version (see above) of
FreeType and its demo programs for testing if possible
since we don't release FreeType very often.</p>
</div>
<!-- ************************************************** -->
<div id="patches">
<h2>Submitting Patches</h2>
<p>For larger changes please
provide <a href="https://gitlab.freedesktop.org/groups/freetype/-/merge_requests">merge
requests</a>. Alternatively, you can submit patches to
the <a href="mailto:freetype-devel@nongnu.org">freetype-devel@nongnu.org</a>
mailing list – and thank you in advance for your
work on improving FreeType!<p>
<p>Here are some tips on making your contribution easy to
integrate into the FreeType git repositories.</p>
<ul>
<li>
In the preamble of your patch, add a description of your
changes similar to the entries in the <tt>ChangeLog</tt>
file. With ‘similar’ it is meant that the
format and style of <tt>ChangeLog</tt> entries should be
imitated as much as possible. However, don't modify
the <tt>ChangeLog</tt> file by yourself.
</li>
<li>
Try to follow the formatting of the source code as much
as possible.
</li>
<li>
If you plan to contribute larger changes, split them
into smaller, logical units. Reviewing code changes in
small, incremental steps is much easier to perform.
</li>
</ul>
</div>
<!-- ************************************************** -->
<div id="language-bindings">
<h2>Language Bindings</h2>
<p>For a couple of programming languages there exist
wrappers around FreeType. Note that some of them are
quite old and probably no longer maintained.</p>
<h3><a href="https://caml.inria.fr/">Caml</a></h3>
<p>Bindings are part of
the <a href="http://cristal.inria.fr/camlimages/eng.html">CamlImages</a>
package.</p>
<h3><a href="https://dlang.org">D</a></h3>
<p>Bindings are available
in <a href="https://code.dlang.org/packages/derelict-ft">derelict-ft</a>.</p>
<h3><a href="https://factorcode.org/">Factor</a></h3>
<p>This dynamic programming language comes
with <a href="https://docs.factorcode.org/content/vocab-freetype.html">FreeType
bindings</a>.</p>
<h3><a href="https://www.perl.org">Perl</a></h3>
<p>More than a single binding package is available.
Try <a href="https://metacpan.org/search?q=freetype">here</a>
for a search on CPAN.</p>
<h3><a href="https://www.python.org">Python</a></h3>
<p>Bindings are
available <a href="https://github.com/rougier/freetype-py/">here</a>.
<a href="https://pypi.org/project/Pillow/">Pillow</a>, the
successor of the Python Imaging Library (PIL), can be
built to use FreeType for font rendering, giving
high-level access to fonts.</p>
<p>A more extensive set of Python bindings, designed to work
together to cover the main parts of the Linux typography
stack, are</p>
<ul>
<li>
<a href="https://github.com/ldo/python_freetype">python_freetype</a>
for FreeType,
</li>
<li>
<a href="https://github.com/ldo/qahirah">Qahirah</a> for
the Cairo graphics library,
</li>
<li>
<a href="https://github.com/ldo/pybidi">PyBidi</a> for
the FriBidi bidirectional-layout library,
</li>
<li>
<a href="https://github.com/ldo/harfpy">HarfPy</a> for
the HarfBuzz type-shaping library, and
</li>
<li>
<a href="https://github.com/ldo/python_fontconfig">python_fontconfig</a> for
the Fontconfig font-matching library.
</li>
</ul>
<h3><a href="https://www.ruby-lang.org">Ruby</a></h3>
<p>See <a href="https://rubygems.org/search?query=freetype+OR+ft2">rubygems</a>
for bindings.</p>
<h3><a href="https://www.rust-lang.org">Rust</a></h3>
<p>Crates, the Rust Package Registry, shows a list of
bindings <a href="https://crates.io/search?q=freetype">here</a>.
</div>
<!-- ************************************************** -->
<div id="support-tools">
<h2>Support Tools</h2>
<p>One of the simplest way to compile FreeType is from the
command line using one of the following tools.</p>
<h3>GNU Make</h3>
<p>FreeType comes with a sophisticated build system that is
based on GNU Make. This really means a set of Makefiles
and sub-Makefiles that are used to perform the following
operations.</p>
<ul>
<li>
<p>Detect the current operating system in order to
select the appropriate default compiler settings for the
build.</p>
</li>
<li>
<p>Select the settings corresponding to a given compiler
for a given platform. For example, on Windows, the
following compilers are supported: Visual C++, GCC,
Borland C++, Watcom C++, Win32-LCC. On Unix, gcc, lcc
and standard cc are also supported through a
traditional <tt>configure</tt> script.</p>
</li>
<li>
<p>Build the list of FreeType modules automatically from
the sub-directories present in the <tt>src</tt>
directory.</p>
</li>
<li>
<p>Finally, build the library and its module as a static
library or DLL, depending on the platform and
compiler.</p>
</li>
</ul>
<p>The build system is capable of supporting several
compilers, on several platforms. However, you <b>must</b>
have a recent version of GNU Make installed to use it.
The build does <em>not work</em> with other <tt>make</tt>
tools (like BSD Make, NMake, etc.).</p>
<p>See the <a href="download.html">download section</a> for
binaries of GNU Make for Windows.</p>
<h3>Meson</h3>
<p>Right now, support for
<a href="https://mesonbuild.com/">Meson</a> is
experimental and available for the library only, without
the demo programs. It is planned to fix this eventually,
making Meson a first-class build system.</p>
<h3>CMake</h3>
<p>FreeType can also be built with
<a href="https://cmake.org/">CMake</a>. Note, however,
that this is contributed code not officially
supported.</p>
</div>
<!-- ************************************************** -->
<div class="updated">
<p>Last update: 16-Jan-2021</p>
</div>
</div>
</div>
<!-- ************************************************** -->
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<a href="freetype2/docs/index.html">Overview</a>
</li>
<li class="primary">
<a href="freetype2/docs/documentation.html">Documentation</a>
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<a href="developer.html" class="current">Development</a>
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<a href="#source-code">Source Code</a>
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</li>
<li class="secondary">
<a href="#patches">Submitting Patches</a>
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