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*.md
!INSTALL.md
!INSTALL_ANY.md
!INSTALL_CROSS.md
!INSTALL_GNU.md
!INSTALL_MAC.md
!INSTALL_UNIX.md
!INSTALL_VMS.md
!INSTALL_ANDROID.md
!MODIFYING.md
!DEVELOPING.md
!Raster_Algorithm.md
# MkDocs Config file
mkdocs.yml
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Instructions on how to build FreeType with your own build tool
==============================================================
See the file `CUSTOMIZE' to learn how to customize FreeType to
specific environments.
I. Standard procedure
---------------------
* If you use macro names for FreeType header files (while mandatory
in earlier versions, this is now optional since FreeType version
2.6.1) it is necessary to disable pre-compiled headers. This is
very important for Visual C++, because lines like
#include FT_FREETYPE_H
are not correctly supported by this compiler while being ISO C
compliant!
* You need to add the directory `include' to your include path when
compiling the library.
* FreeType 2 is made of several components; each of them is located
in a subdirectory of `freetype/src'. For example,
`freetype/src/truetype/' contains the TrueType font driver.
* DO NOT COMPILE ALL C FILES! Rather, compile the following ones.
-- base components (required)
src/base/ftsystem.c
src/base/ftinit.c
src/base/ftdebug.c
src/base/ftbase.c
src/base/ftbbox.c -- recommended, see <ftbbox.h>
src/base/ftglyph.c -- recommended, see <ftglyph.h>
src/base/ftbdf.c -- optional, see <ftbdf.h>
src/base/ftbitmap.c -- optional, see <ftbitmap.h>
src/base/ftcid.c -- optional, see <ftcid.h>
src/base/ftfstype.c -- optional
src/base/ftgasp.c -- optional, see <ftgasp.h>
src/base/ftgxval.c -- optional, see <ftgxval.h>
src/base/ftmm.c -- optional, see <ftmm.h>
src/base/ftotval.c -- optional, see <ftotval.h>
src/base/ftpatent.c -- optional
src/base/ftpfr.c -- optional, see <ftpfr.h>
src/base/ftstroke.c -- optional, see <ftstroke.h>
src/base/ftsynth.c -- optional, see <ftsynth.h>
src/base/fttype1.c -- optional, see <t1tables.h>
src/base/ftwinfnt.c -- optional, see <ftwinfnt.h>
src/base/ftmac.c -- only on the Macintosh
-- font drivers (optional; at least one is needed)
src/bdf/bdf.c -- BDF font driver
src/cff/cff.c -- CFF/OpenType font driver
src/cid/type1cid.c -- Type 1 CID-keyed font driver
src/pcf/pcf.c -- PCF font driver
src/pfr/pfr.c -- PFR/TrueDoc font driver
src/sfnt/sfnt.c -- SFNT files support
(TrueType & OpenType)
src/truetype/truetype.c -- TrueType font driver
src/type1/type1.c -- Type 1 font driver
src/type42/type42.c -- Type 42 font driver
src/winfonts/winfnt.c -- Windows FONT / FNT font driver
-- rasterizers (optional; at least one is needed for vector
formats)
src/raster/raster.c -- monochrome rasterizer
src/sdf/sdf.c -- Signed Distance Field driver
src/smooth/smooth.c -- anti-aliasing rasterizer
-- auxiliary modules (optional)
src/autofit/autofit.c -- auto hinting module
src/cache/ftcache.c -- cache sub-system (in beta)
src/gzip/ftgzip.c -- support for compressed fonts (.gz)
src/lzw/ftlzw.c -- support for compressed fonts (.Z)
src/bzip2/ftbzip2.c -- support for compressed fonts (.bz2)
src/gxvalid/gxvalid.c -- TrueTypeGX/AAT table validation
src/otvalid/otvalid.c -- OpenType table validation
src/psaux/psaux.c -- PostScript Type 1 parsing
src/pshinter/pshinter.c -- PS hinting module
src/psnames/psnames.c -- PostScript glyph names support
Notes:
`ftcache.c' needs `ftglyph.c'
`ftfstype.c' needs `fttype1.c'
`ftglyph.c' needs `ftbitmap.c'
`ftstroke.c' needs `ftglyph.c'
`ftsynth.c' needs `ftbitmap.c'
`cff.c' needs `sfnt.c', `pshinter.c', and `psnames.c'
`truetype.c' needs `sfnt.c' and `psnames.c'
`type1.c' needs `psaux.c' `pshinter.c', and `psnames.c'
`type1cid.c' needs `psaux.c', `pshinter.c', and `psnames.c'
`type42.c' needs `truetype.c'
Please consult the central `include/freetype/config/ftoption.h'
configuration file for details on additional libraries necessary
for some optional features.
Read the file `CUSTOMIZE' in case you want to compile only a subset
of the drivers, renderers, and optional modules; a detailed
description of the various base extension is given in the top-level
file `modules.cfg'.
You are done. In case of problems, see the archives of the FreeType
development mailing list.
II. Support for flat-directory compilation
------------------------------------------
It is possible to put all FreeType 2 source files into a single
directory, with the *exception* of the `include' hierarchy.
1. Copy all files in current directory
cp freetype/src/base/*.[hc] .
cp freetype/src/raster1/*.[hc] .
cp freetype/src/smooth/*.[hc] .
etc.
2. Compile sources
cc -c -Iinclude -DFT2_BUILD_LIBRARY ftsystem.c
cc -c -Iinclude -DFT2_BUILD_LIBRARY ftinit.c
cc -c -Iinclude -DFT2_BUILD_LIBRARY ftdebug.c
cc -c -Iinclude -DFT2_BUILD_LIBRARY ftbase.c
etc.
You don't need to define the FT_FLAT_COMPILATION macro (as this
was required in previous releases of FreeType 2).
----------------------------------------------------------------------
Copyright (C) 2003-2023 by
David Turner, Robert Wilhelm, and Werner Lemberg.
This file is part of the FreeType project, and may only be used,
modified, and distributed under the terms of the FreeType project
license, LICENSE.TXT. By continuing to use, modify, or distribute
this file you indicate that you have read the license and understand
and accept it fully.
--- end of INSTALL.ANY ---
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This document contains instructions on how to cross-build the FreeType
library on Unix systems, for example, building binaries for Linux/MIPS
on FreeBSD/i386. Before reading this document, please consult the
file `INSTALL.UNIX' for required tools and the basic self-building
procedure.
1. Required Tools
-----------------
For self-building the FreeType library on a Unix system, GNU Make
3.81 or newer is required. `INSTALL.UNIX' contains hints how to
check the installed `make'.
The GNU C compiler to cross-build the target system is required.
Currently, using a non-GNU cross compiler is untested. The cross
compiler is expected to be installed with a system prefix. For
example, if your building system is FreeBSD/i386 and the target
system is Linux/MIPS, the cross compiler should be installed with
the name `mips-ip22-linuxelf-gcc'.
A C compiler for a self-build is required also, to build a tool
(`apinames') that is executed during the build procedure. Non-GNU
self compilers are acceptable, but such a setup is untested.
2. Configuration
----------------
2.1. Building and target system
To configure a cross-build, the options `--host=<system>' and
`--build=<system>' must be passed to the `configure' script.
For example, if your build system is FreeBSD/i386 and the target
system is Linux/MIPS, say
./configure \
--build=i386-unknown-freebsd \
--host=mips-ip22-linuxelf \
[other options]
It should be noted that `--host=<system>' specifies the system
where the built binaries will be executed, not the system where
the build actually happens. Older versions of GNU autoconf use
the option pair `--host=' and `--target='. This is broken and
doesn't work. Similarly, an explicit CC specification like
env CC=mips-ip22-linux-gcc ./configure # BAD
or
env CC=/usr/local/mips-ip22-linux/bin/gcc ./configure # BAD
doesn't work either; such a configuration confuses the
`configure' script while trying to find the cross and native C
compilers.
2.2. The prefix to install FreeType2
Setting `--prefix=<prefix>' properly is important. The prefix
to install FreeType2 is written into the `freetype-config'
script and `freetype2.pc' configuration file.
If the built FreeType 2 library is used as a part of the
cross-building system, the prefix is expected to be different
from the self-building system. For example, a configuration
with `--prefix=/usr/local' installs binaries into the
system-wide `/usr/local' directory, which then can't be executed
due to the incorrect architecture. This causes confusion in
configuration of all applications that use FreeType2. Instead,
use a prefix to install the cross-build into a separate system
tree, for example, `--prefix=/usr/local/mips-ip22-linux/'.
On the other hand, if the built FreeType 2 library is used as a
part of the target system, the prefix to install should reflect
the file system structure of the target system.
2.3. Library dependencies
FreeType normally depends on external libraries like `libpng' or
`libharfbuzz'. The easiest case is to deactivate all such
dependencies using the `--without-XXX' configuration options.
However, if you want to use those libraries, you should ensure
that they are available both on the target system and as
(cross-compiled) libraries on the build system.
FreeType uses `pkg-config' to find most of the libraries; the
other libraries it links to are expected in the standard system
directories. Since the default pkg-config's meta-information
files (like `harfbuzz.pc') of the build platform don't work, use
one of the two possible solutions below.
o Use pkg-config's meta-information files that are adjusted to
cross-compile and cross-link with the target platform's
libraries. Make sure those files are found before the build
system's default files. Example:
./configure \
--build=i386-unknown-freebsd \
--host=mips-ip22-linuxelf \
PKG_CONFIG_LIBDIR="/usr/local/mips-ip22-linux/lib/pkgconfig" \
[other options]
See the manpage of `pkg-config' for more details.
o Set variables like LIBPNG_LIBS as additional options to the
`configure' script, overriding the values `pkg-config' would
provide. `configure --help' shows the available environment
variables. Example:
./configure \
--build=i386-unknown-freebsd \
--host=mips-ip22-linuxelf \
LIBPNG_CFLAGS="-I/usr/local/mips-ip22-linux/include" \
LIBPNG_LIBS="-L/usr/local/mips-ip22-linux/lib -lpng12" \
[other options]
3. Building command
-------------------
If the configuration finishes successfully, invoking GNU make
builds FreeType2. Just say
make
or
gmake
depending on the name the GNU make binary actually has.
4. Installation
---------------
Saying
make install
as usual to install FreeType2 into the directory tree specified by
the argument of the `--prefix' option.
As noted in section 2.2, FreeType2 is sometimes configured to be
installed into the system directory of the target system, and
should not be installed in the cross-building system. In such
cases, the make variable `DESTDIR' is useful to change the root
directory in the installation. For example, after
make DESTDIR=/mnt/target_system_root/ install
the built FreeType2 library files are installed into the directory
`/mnt/target_system_root/<prefix_in_configure>/lib'.
5. TODO
-------
Cross building between Cygwin (or MSys) and Unix must be tested.
----------------------------------------------------------------------
Copyright (C) 2006-2023 by
suzuki toshiya, David Turner, Robert Wilhelm, and Werner Lemberg.
This file is part of the FreeType project, and may only be used,
modified, and distributed under the terms of the FreeType project
license, LICENSE.TXT. By continuing to use, modify, or distribute
this file you indicate that you have read the license and understand
and accept it fully.
--- end of INSTALL.CROSS ---
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This document contains instructions how to build the FreeType library
on non-Unix systems with the help of GNU Make. Note that if you are
running Cygwin or MinGW/MSYS in Windows, you should follow the
instructions in the file `INSTALL.UNIX' instead.
FreeType 2 includes a powerful and flexible build system that allows
you to easily compile it on a great variety of platforms from the
command line. To do so, just follow these simple instructions.
1. Install GNU Make
-------------------
The FreeType 2 build system relies on many features special to GNU
Make.
NEARLY ALL OTHER MAKE TOOLS FAIL, INCLUDING `BSD MAKE', SO REALLY
INSTALL A RECENT VERSION OF GNU MAKE ON YOUR SYSTEM!
Note that make++, a make tool written in Perl, supports enough
features of GNU make to compile FreeType. See
https://makepp.sourceforge.net
for more information; you need version 2.0 or newer, and you must
pass option `--norc-substitution'.
Make sure that you are invoking GNU Make from the command line, by
typing something like:
make -v
to display its version number.
VERSION 3.81 OR NEWER IS NEEDED!
2. Invoke `make'
----------------
Go to the root directory of FreeType 2, then simply invoke GNU
Make from the command line. This will launch the FreeType 2 host
platform detection routines. A summary will be displayed, for
example, on Win32.
==============================================================
FreeType build system -- automatic system detection
The following settings are used:
platform windows
compiler gcc
configuration directory .\builds\windows
configuration rules .\builds\windows\w32-gcc.mk
If this does not correspond to your system or settings please
remove the file 'config.mk' from this directory then read the
INSTALL file for help.
Otherwise, simply type 'make' again to build the library
or 'make refdoc' to build the API reference (the latter needs
Python >= 3.5).
=============================================================
If the detected settings correspond to your platform and compiler,
skip to step 5. Note that if your platform is completely alien to
the build system, the detected platform will be `ansi'.
3. Configure the build system for a different compiler
------------------------------------------------------
If the build system correctly detected your platform, but you want
to use a different compiler than the one specified in the summary
(for most platforms, gcc is the default compiler), invoke GNU Make
with
make setup <compiler>
Examples:
to use Visual C++ on Win32, type: `make setup visualc'
to use Borland C++ on Win32, type `make setup bcc32'
to use Watcom C++ on Win32, type `make setup watcom'
to use Intel C++ on Win32, type `make setup intelc'
to use LCC-Win32 on Win32, type: `make setup lcc'
to use Watcom C++ on OS/2, type `make setup watcom'
to use VisualAge C++ on OS/2, type `make setup visualage'
The <compiler> name to use is platform-dependent. The list of
available compilers for your system is available in the file
`builds/<system>/detect.mk'.
If you are satisfied by the new configuration summary, skip to
step 5.
3a. Use clang instead of gcc
----------------------------
The `clang' compiler can use FreeType's setup for `gcc'; it is
sufficient to set the `CC' variable, for example
make CC=clang
3b. Compiling with a C++ compiler
---------------------------------
FreeType can be built with a C++ compiler, for example
make CC="g++"
If `clang++' should be used it is necessary to also override the
`ANSIFLAGS' variable:
make CC="clang++" ANSIFLAGS=""
4. Configure the build system for an unknown platform/compiler
--------------------------------------------------------------
The auto-detection/setup phase of the build system copies a file
to the current directory under the name `config.mk'.
For example, on OS/2+gcc, it would simply copy
`builds/os2/os2-gcc.mk' to `./config.mk'.
If for some reason your platform isn't correctly detected, copy
manually the configuration sub-makefile to `./config.mk' and go to
step 5.
Note that this file is a sub-Makefile used to specify Make
variables for compiler and linker invocation during the build.
You can easily create your own version from one of the existing
configuration files, then copy it to the current directory under
the name `./config.mk'.
5. Build the library
--------------------
The auto-detection/setup phase should have copied a file in the
current directory, called `./config.mk'. This file contains
definitions of various Make variables used to invoke the compiler
and linker during the build. [It has also generated a file called
`ftmodule.h' in the objects directory (which is normally
`<toplevel>/objs/'); please read the file `docs/CUSTOMIZE' for
customization of FreeType.]
To launch the build, simply invoke GNU Make again: The top
Makefile will detect the configuration file and run the build with
it. If you have used variables in step 3, you must use the same
variables here, too.
Final note
The above instructions build a _statically_ linked library of the
font engine in the `objs' directory. On Windows, you can build a
DLL either with MinGW (within an MSYS shell, following the
instructions in `INSTALL.UNIX'), or you use one of the Visual C++
project files; see the subdirectories of `builds/windows'. For
everything else, you are on your own, and you might follow the
instructions in `INSTALL.ANY' to create your own Makefiles.
----------------------------------------------------------------------
Copyright (C) 2003-2023 by
David Turner, Robert Wilhelm, and Werner Lemberg.
This file is part of the FreeType project, and may only be used,
modified, and distributed under the terms of the FreeType project
license, LICENSE.TXT. By continuing to use, modify, or distribute
this file you indicate that you have read the license and understand
and accept it fully.
--- end of INSTALL.GNU ---
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Please follow the instructions in INSTALL.UNIX to install FreeType on
Mac OS X.
Currently FreeType2 functions based on some deprecated Carbon APIs
return `FT_Err_Unimplemented_Feature' always, even if FreeType2 is
configured and built on the system that deprecated Carbon APIs are
available. To enable deprecated FreeType2 functions as far as
possible, replace `src/base/ftmac.c' by `builds/mac/ftmac.c'.
Starting with Mac OS X 10.5, gcc defaults the deployment target to
10.5. In previous versions of Mac OS X, this defaulted to 10.1. If
you want your built binaries to run only on 10.5, this change does not
concern you. If you want them to also run on older versions of Mac
OS X, then you must either set the MACOSX_DEPLOYMENT_TARGET
environment variable or pass `-mmacosx-version-min' to gcc. You
should specify the oldest version of Mac OS you want the code to run
on. For example, if you use Bourne shell:
export MACOSX_DEPLOYMENT_TARGET=10.2
or, if you use C shell:
setenv MACOSX_DEPLOYMENT_TARGET 10.2
Alternatively, you could pass `-mmacosx-version-min=10.2' to gcc.
Here the number 10.2 is the lowest version that the built binaries can
run on. In the above cases, the built binaries will run on Mac OS X
10.2 and later, but _not_ earlier. If you want to run on earlier, you
have to set lower version, e.g., 10.0.
For classic Mac OS (Mac OS 7, 8, 9) please refer to builds/mac/README.
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This document contains instructions on how to build the FreeType
library on Unix systems. This also works for emulations like Cygwin
or MSys on Win32:
1. Ensure that you are using GNU Make
-------------------------------------
The FreeType build system _exclusively_ works with GNU Make. You
will not be able to compile the library with the instructions
below using any other alternative (including BSD Make).
Check that you have GNU make by running the command:
make -v
This should dump some text that begins with:
GNU Make <version number>
Copyright (C) <year> Free Software Foundation Inc.
Note that version 3.81 or higher is *required* or the build will
fail.
It is also fine to have GNU Make under another name (e.g. 'gmake')
if you use the MAKE variable as described below.
As a special exception, 'makepp' can also be used to build
FreeType 2. See the file docs/MAKEPP for details.
For builds with `cmake' please check file `CMakeLists.txt'; this
is a contributed file not directly supported by the FreeType team.
2. Regenerate the configure script if needed
--------------------------------------------
This only applies if you are building a git snapshot or checkout,
*not* if you grabbed the sources of an official release.
You need to invoke the `autogen.sh' script in the top-level
directory in order to create the `configure' script for your
platform. Normally, this simply means typing:
sh autogen.sh
In case of problems, you may need to install or upgrade Automake,
Autoconf or Libtool. See `README.git' in the top-level directory
for more information.
3. Build and install the library
--------------------------------
Say
./configure --help
to see the list of possible configuration options and important
environment variables. The ./configure script will detect some
prerequisite system libraries (libpng, brotli, etc.) if their
headers are available at the default locations.
The following should work on all Unix systems where the `make'
command invokes GNU Make:
./configure [options]
make
make install (as root)
The default installation path is `/usr/local'. It can be changed
with the `--prefix=<path>' option. Example:
./configure --prefix=/usr
When using a different command to invoke GNU Make, use the MAKE
variable. For example, if `gmake' is the command to use on your
system, do something like:
MAKE=gmake ./configure [options]
gmake
gmake install (as root)
If this still doesn't work, there must be a problem with your
system (e.g., you are using a very old version of GNU Make).
For library identification, FreeType's `configure' script uses the
`pkg-config' interface: Assuming it needs library `foo', it calls
the `pkg-config' program to find information on library `foo',
which in turn looks for a `foo.pc' file installed at the system.
Some platforms, however, don't come with `pkg-support'; you then
have to use environment variables as described by `configure
--help'. Example:
LIBPNG_CFLAGS="-I/path/to/libpng/include/directory" \
LIBPNG_LIBS="-L/path/to/libpng/lib/directory" \
configure ...
It is possible to compile FreeType in a different directory.
Assuming the FreeType source files in directory `/src/freetype' a
compilation in directory `foo' works as follows:
cd foo
/src/freetype/configure [options]
make
make install
3.1 Interdependency with HarfBuzz
.................................
Note that there is a chicken-and-egg problem currently since the
HarfBuzz library (used by the auto-hinter to improve support of
OpenType fonts) depends on FreeType, which can be solved as
follows in case HarfBuzz is not yet installed on your system.
1. Call FreeType's `configure' script with option
`--without-harfbuzz', then compile and install FreeType.
2. Compile and install HarfBuzz.
3. Call FreeType's `configure' script without option
`--without-harfbuzz' (after executing `make distclean'), then
compile and install FreeType again.
----------------------------------------------------------------------
Copyright (C) 2003-2023 by
David Turner, Robert Wilhelm, and Werner Lemberg.
This file is part of the FreeType project, and may only be used,
modified, and distributed under the terms of the FreeType project
license, LICENSE.TXT. By continuing to use, modify, or distribute
this file you indicate that you have read the license and understand
and accept it fully.
--- end of INSTALL.UNIX ---
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# Compiling FreeType on Android using Termux
If you want to test FreeType on arm devices, compiling it on an Android
phone is one of the easiest ways.
## 1. Compiling FreeType
1. Install and open termux
2. Update termux packages using:
```bash
pkg update
pkg upgrade
```
Select `y` if any configuration changes are asked
3. Install `git`:
```bash
pkg install git
```
4. Install packages required for compilation:
```bash
pkg install automake autoconf libtool make clang binutils
```
5. Clone FreeType's git repository:
```bash
git clone https://gitlab.freedesktop.org/freetype/freetype.git
```
6. Enter into the source directory:
```
cd freetype/
```
7. Now you can compile FreeType according to [INSTALL_UNIX.md]:
```bash
./autogen.sh
./configure
make -j$(nproc)
```
The compiled binaries can be accessed under `objs/.libs`
## 2. Compiling FreeType Demo programs
If you need to test your changes you may want to use ft-demo
programs. They can be compiled and run by follwing these steps:
1. First compile FreeType using the steps above.
2. Clone FreeType demos adjacent to the `freetype/` directory:
```bash
git clone https://gitlab.freedesktop.org/freetype/freetype-demos.git
```
i.e. If you can access FreeType repo under `~/freetype`, you should
be able to access `~/freetype-demos`.
3. Enter into the ft-demos directory:
```bash
cd freetype-demos
```
4. Compile the programs:
```bash
make
```
5. The compiled binaries can be accessed and executed under `bin/` like:
```bash
cd bin
./ftlint
```
<!---->
[INSTALL_UNIX.md]: ./INSTALL_UNIX.md
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# Instructions on how to build FreeType with your own build tool
See the file [docs/CUSTOMIZE][CUSTOMIZE] to learn how to
customize FreeType to specific environments.
## A. Standard procedure
If you use macro names for FreeType header files (while mandatory
in earlier versions, this is now optional since FreeType version
2.6.1) it is necessary to disable pre-compiled headers. This is
very important for Visual C++, because lines like
```C
#include FT_FREETYPE_H
```
are not correctly supported by this compiler while being ISO C
compliant!
You need to add the directory `include` to your include path when
compiling the library.
FreeType 2 is made of several components; each of them is located
in a subdirectory of `freetype/src`. For example,
`freetype/src/truetype/` contains the TrueType font driver.
## DO NOT COMPILE ALL C FILES! Rather, compile the following ones.
### base components (required):
src/base/ftsystem.c
src/base/ftinit.c
src/base/ftdebug.c
src/base/ftbase.c
src/base/ftbbox.c -- recommended, see <ftbbox.h>
src/base/ftglyph.c -- recommended, see <ftglyph.h>
src/base/ftbdf.c -- optional, see <ftbdf.h>
src/base/ftbitmap.c -- optional, see <ftbitmap.h>
src/base/ftcid.c -- optional, see <ftcid.h>
src/base/ftfstype.c -- optional
src/base/ftgasp.c -- optional, see <ftgasp.h>
src/base/ftgxval.c -- optional, see <ftgxval.h>
src/base/ftmm.c -- optional, see <ftmm.h>
src/base/ftotval.c -- optional, see <ftotval.h>
src/base/ftpatent.c -- optional
src/base/ftpfr.c -- optional, see <ftpfr.h>
src/base/ftstroke.c -- optional, see <ftstroke.h>
src/base/ftsynth.c -- optional, see <ftsynth.h>
src/base/fttype1.c -- optional, see <t1tables.h>
src/base/ftwinfnt.c -- optional, see <ftwinfnt.h>
src/base/ftmac.c -- only on the Macintosh
### font drivers (optional; at least one is needed)
src/bdf/bdf.c -- BDF font driver
src/cff/cff.c -- CFF/OpenType font driver
src/cid/type1cid.c -- Type 1 CID-keyed font driver
src/pcf/pcf.c -- PCF font driver
src/pfr/pfr.c -- PFR/TrueDoc font driver
src/sfnt/sfnt.c -- SFNT files support
(TrueType & OpenType)
src/truetype/truetype.c -- TrueType font driver
src/type1/type1.c -- Type 1 font driver
src/type42/type42.c -- Type 42 font driver
src/winfonts/winfnt.c -- Windows FONT / FNT font driver
### rasterizers (optional; at least one is needed for vector formats)
src/raster/raster.c -- monochrome rasterizer
src/sdf/sdf.c -- Signed Distance Field driver
src/smooth/smooth.c -- anti-aliasing rasterizer
### auxiliary modules (optional)
src/autofit/autofit.c -- auto hinting module
src/cache/ftcache.c -- cache sub-system (in beta)
src/gzip/ftgzip.c -- support for compressed fonts (.gz)
src/lzw/ftlzw.c -- support for compressed fonts (.Z)
src/bzip2/ftbzip2.c -- support for compressed fonts (.bz2)
src/gxvalid/gxvalid.c -- TrueTypeGX/AAT table validation
src/otvalid/otvalid.c -- OpenType table validation
src/psaux/psaux.c -- PostScript Type 1 parsing
src/pshinter/pshinter.c -- PS hinting module
src/psnames/psnames.c -- PostScript glyph names support
## Notes:
`ftcache.c` needs `ftglyph.c`
`ftfstype.c` needs `fttype1.c`
`ftglyph.c` needs `ftbitmap.c`
`ftstroke.c` needs `ftglyph.c`
`ftsynth.c` needs `ftbitmap.c`
`cff.c` needs `sfnt.c`, `pshinter.c`, and `psnames.c`
`truetype.c` needs `sfnt.c` and `psnames.c`
`type1.c` needs `psaux.c` `pshinter.c`, and `psnames.c`
`type1cid.c` needs `psaux.c`, `pshinter.c`, and `psnames.c`
`type42.c` needs `truetype.c`
Please consult the central `include/freetype/config/ftoption.h`
configuration file for details on additional libraries necessary
for some optional features.
Read the file `CUSTOMIZE` in case you want to compile only a subset
of the drivers, renderers, and optional modules; a detailed
description of the various base extension is given in the top-level
file `modules.cfg`.
You are done. In case of problems, see the archives of the FreeType
development mailing list.
## B. Support for flat-directory compilation
It is possible to put all FreeType 2 source files into a single
directory, with the *exception* of the `include` hierarchy.
Copy all files in current directory
cp freetype/src/base/*.[hc] .
cp freetype/src/raster1/*.[hc] .
cp freetype/src/smooth/*.[hc] .
etc.
Compile sources
cc -c -Iinclude -DFT2_BUILD_LIBRARY ftsystem.c
cc -c -Iinclude -DFT2_BUILD_LIBRARY ftinit.c
cc -c -Iinclude -DFT2_BUILD_LIBRARY ftdebug.c
cc -c -Iinclude -DFT2_BUILD_LIBRARY ftbase.c
etc.
You don't need to define the FT_FLAT_COMPILATION macro (as this
was required in previous releases of FreeType 2).
---
```
Copyright (C) 2003-2023 by
David Turner, Robert Wilhelm, and Werner Lemberg.
This file is part of the FreeType project, and may only be used,
modified, and distributed under the terms of the FreeType project
license, LICENSE.TXT. By continuing to use, modify, or distribute
this file you indicate that you have read the license and understand
and accept it fully.
```
<!---->
[CUSTOMIZE]: ./CUSTOMIZE
docs/INSTALL_CROSS.md 0 → 100644
View file @ cb7f7760
# Cross-Compiling FreeType
This document contains instructions on how to cross-build the FreeType
library on Unix systems, for example, building binaries for Linux/MIPS
on FreeBSD/i386. Before reading this document, please consult the
file [INSTALL_UNIX.md] for required tools and the basic self-building
procedure.
## 1. Required Tools
For self-building the FreeType library on a Unix system, GNU Make
3.81 or newer is required. [INSTALL_UNIX.md contains hints how to
check the installed `make`.
The GNU C compiler to cross-build the target system is required.
Currently, using a non-GNU cross compiler is untested. The cross
compiler is expected to be installed with a system prefix. For
example, if your building system is FreeBSD/i386 and the target
system is Linux/MIPS, the cross compiler should be installed with
the name `mips-ip22-linuxelf-gcc`.
A C compiler for a self-build is required also, to build a tool
(`apinames`) that is executed during the build procedure. Non-GNU
self compilers are acceptable, but such a setup is untested.
## 2. Configuration
### 2.1 Building and target system
To configure a cross-build, the options `--host=<system>` and
`--build=<system>` must be passed to the `configure` script.
For example, if your build system is FreeBSD/i386 and the target
system is Linux/MIPS, say
```bash
./configure \
--build=i386-unknown-freebsd \
--host=mips-ip22-linuxelf \
[other options]
```
It should be noted that `--host=<system>` specifies the system
where the built binaries will be executed, not the system where
the build actually happens. Older versions of GNU autoconf use
the option pair `--host=` and `--target=`. This is broken and
doesn't work. Similarly, an explicit CC specification like
```bash
env CC=mips-ip22-linux-gcc ./configure # BAD
```
or
```bash
env CC=/usr/local/mips-ip22-linux/bin/gcc ./configure # BAD
```
doesn't work either; such a configuration confuses the
`configure` script while trying to find the cross and native C
compilers.
### 2.2. The prefix to install FreeType2
Setting `--prefix=<prefix>` properly is important. The prefix
to install FreeType2 is written into the `freetype-config`
script and `freetype2.pc` configuration file.
If the built FreeType 2 library is used as a part of the
cross-building system, the prefix is expected to be different
from the self-building system. For example, a configuration
with `--prefix=/usr/local` installs binaries into the
system-wide `/usr/local` directory, which then can't be executed
due to the incorrect architecture. This causes confusion in
configuration of all applications that use FreeType2. Instead,
use a prefix to install the cross-build into a separate system
tree, for example, `--prefix=/usr/local/mips-ip22-linux/`.
On the other hand, if the built FreeType 2 library is used as a
part of the target system, the prefix to install should reflect
the file system structure of the target system.
### 2.3. Library dependencies
FreeType normally depends on external libraries like `libpng` or
`libharfbuzz`. The easiest case is to deactivate all such
dependencies using the `--without-XXX` configuration options.
However, if you want to use those libraries, you should ensure
that they are available both on the target system and as
(cross-compiled) libraries on the build system.
FreeType uses `pkg-config` to find most of the libraries; the
other libraries it links to are expected in the standard system
directories. Since the default pkg-config's meta-information
files (like `harfbuzz.pc`) of the build platform don't work, use
one of the two possible solutions below.
- Use pkg-config's meta-information files that are adjusted to
cross-compile and cross-link with the target platform's
libraries. Make sure those files are found before the build
system's default files. Example:
```bash
./configure \
--build=i386-unknown-freebsd \
--host=mips-ip22-linuxelf \
PKG_CONFIG_LIBDIR="/usr/local/mips-ip22-linux/lib/pkgconfig" \
[other options]
```
See the manpage of `pkg-config` for more details.
- Set variables like LIBPNG_LIBS as additional options to the
`configure` script, overriding the values `pkg-config` would
provide. `configure --help` shows the available environment
variables. Example:
```bash
./configure \
--build=i386-unknown-freebsd \
--host=mips-ip22-linuxelf \
LIBPNG_CFLAGS="-I/usr/local/mips-ip22-linux/include" \
LIBPNG_LIBS="-L/usr/local/mips-ip22-linux/lib -lpng12" \
[other options]
```
## 3. Building command
If the configuration finishes successfully, invoking GNU make
builds FreeType2. Just say
make
or
gmake
depending on the name the GNU make binary actually has.
## 4. Installation
Saying
make install
as usual to install FreeType2 into the directory tree specified by
the argument of the `--prefix` option.
As noted in section 2.2, FreeType2 is sometimes configured to be
installed into the system directory of the target system, and
should not be installed in the cross-building system. In such
cases, the make variable `DESTDIR` is useful to change the root
directory in the installation. For example, after
```bash
make DESTDIR=/mnt/target_system_root/ install
```
the built FreeType2 library files are installed into the directory
`/mnt/target_system_root/<prefix_in_configure>/lib`.
## 5. TODO
Cross building between Cygwin (or MSys) and Unix must be tested.
---
```
Copyright (C) 2006-2023 by
suzuki toshiya, David Turner, Robert Wilhelm, and Werner Lemberg.
This file is part of the FreeType project, and may only be used,
modified, and distributed under the terms of the FreeType project
license, LICENSE.TXT. By continuing to use, modify, or distribute
this file you indicate that you have read the license and understand
and accept it fully.
```
<!---->
[INSTALL_UNIX.md]: ./INSTALL_UNIX.md
docs/INSTALL_GNU.md 0 → 100644
View file @ cb7f7760
# Compiling FreeType with GNU Make
This document contains instructions how to build the FreeType library
on non-Unix systems with the help of GNU Make. Note that if you are
running Cygwin or MinGW/MSYS in Windows, you should follow the
instructions in the file [INSTALL_UNIX.md] instead.
FreeType 2 includes a powerful and flexible build system that allows
you to easily compile it on a great variety of platforms from the
command line. To do so, just follow these simple instructions.
## 1. Install GNU Make
The FreeType 2 build system relies on many features special to GNU
Make.
NEARLY ALL OTHER MAKE TOOLS FAIL, INCLUDING `BSD MAKE`, SO REALLY
INSTALL A RECENT VERSION OF GNU MAKE ON YOUR SYSTEM!
Note that make++, a make tool written in Perl, supports enough
features of GNU make to compile FreeType. See
>https://makepp.sourceforge.net
for more information; you need version 2.0 or newer, and you must
pass option `--norc-substitution`.
Make sure that you are invoking GNU Make from the command line, by
typing something like:
make -v
to display its version number.
VERSION 3.81 OR NEWER IS NEEDED!
## 2. Invoke `make`
Go to the root directory of FreeType 2, then simply invoke GNU
Make from the command line. This will launch the FreeType 2 host
platform detection routines. A summary will be displayed, for
example, on Win32.
FreeType build system -- automatic system detection
The following settings are used:
platform windows
compiler gcc
configuration directory .\builds\windows
configuration rules .\builds\windows\w32-gcc.mk
If this does not correspond to your system or settings please
remove the file 'config.mk' from this directory then read the
INSTALL file for help.
Otherwise, simply type 'make' again to build the library
or 'make refdoc' to build the API reference (the latter needs
Python >= 3.5).
If the detected settings correspond to your platform and compiler,
skip to step 5. Note that if your platform is completely alien to
the build system, the detected platform will be `ansi`.
## 3. Configure the build system for a different compiler
If the build system correctly detected your platform, but you want
to use a different compiler than the one specified in the summary
(for most platforms, gcc is the default compiler), invoke GNU Make
with
make setup <compiler>
Examples:
to use Visual C++ on Win32, type: `make setup visualc`
to use Borland C++ on Win32, type `make setup bcc32`
to use Watcom C++ on Win32, type `make setup watcom`
to use Intel C++ on Win32, type `make setup intelc`
to use LCC-Win32 on Win32, type: `make setup lcc`
to use Watcom C++ on OS/2, type `make setup watcom`
to use VisualAge C++ on OS/2, type `make setup visualage`
The `<compiler>` name to use is platform-dependent. The list of
available compilers for your system is available in the file
`builds/<system>/detect.mk`.
If you are satisfied by the new configuration summary, skip to
step 5.
### 3a. Use clang instead of gcc
The `clang` compiler can use FreeType's setup for `gcc`; it is
sufficient to set the `CC` variable, for example
make CC=clang
### 3b. Compiling with a C++ compiler
FreeType can be built with a C++ compiler, for example
make CC="g++"
If `clang++` should be used it is necessary to also override the
`ANSIFLAGS` variable:
make CC="clang++" ANSIFLAGS=""
## 4. Configure the build system for an unknown platform/compiler
The auto-detection/setup phase of the build system copies a file
to the current directory under the name `config.mk`.
For example, on OS/2+gcc, it would simply copy
`builds/os2/os2-gcc.mk` to `./config.mk`.
If for some reason your platform isn't correctly detected, copy
manually the configuration sub-makefile to `./config.mk` and go to
step 5.
Note that this file is a sub-Makefile used to specify Make
variables for compiler and linker invocation during the build.
You can easily create your own version from one of the existing
configuration files, then copy it to the current directory under
the name `./config.mk`.
## 5. Build the library
The auto-detection/setup phase should have copied a file in the
current directory, called `./config.mk`. This file contains
definitions of various Make variables used to invoke the compiler
and linker during the build. [It has also generated a file called
`ftmodule.h` in the objects directory (which is normally
`<toplevel>/objs/`); please read the file [docs/CUSTOMIZE][CUSTOMIZE]
for customization of FreeType.]
To launch the build, simply invoke GNU Make again: The top
Makefile will detect the configuration file and run the build with
it. If you have used variables in step 3, you must use the same
variables here, too.
Final note
The above instructions build a _statically_ linked library of the
font engine in the `objs` directory. On Windows, you can build a
DLL either with MinGW (within an MSYS shell, following the
instructions in `INSTALL.UNIX`), or you use one of the Visual C++
project files; see the subdirectories of `builds/windows`. For
everything else, you are on your own, and you might follow the
instructions in `INSTALL.ANY` to create your own Makefiles.
---
```
Copyright (C) 2003-2023 by
David Turner, Robert Wilhelm, and Werner Lemberg.
This file is part of the FreeType project, and may only be used,
modified, and distributed under the terms of the FreeType project
license, LICENSE.TXT. By continuing to use, modify, or distribute
this file you indicate that you have read the license and understand
and accept it fully.
```
<!---->
[INSTALL_UNIX.md]: ./INSTALL_UNIX.md
[CUSTOMIZE]: ./CUSTOMIZE
docs/INSTALL_MAC.md 0 → 100644
View file @ cb7f7760
# Compiling FreeType on Mac OS X
Please follow the instructions in INSTALL.UNIX to install FreeType on
Mac OS X.
Currently FreeType2 functions based on some deprecated Carbon APIs
return `FT_Err_Unimplemented_Feature` always, even if FreeType2 is
configured and built on the system that deprecated Carbon APIs are
available. To enable deprecated FreeType2 functions as far as
possible, replace `src/base/ftmac.` by `builds/mac/ftmac.c`.
Starting with Mac OS X 10.5, gcc defaults the deployment target to
10.5. In previous versions of Mac OS X, this defaulted to 10.1. If
you want your built binaries to run only on 10.5, this change does not
concern you. If you want them to also run on older versions of Mac
OS X, then you must either set the MACOSX_DEPLOYMENT_TARGET
environment variable or pass `-mmacosx-version-min` to gcc. You
should specify the oldest version of Mac OS you want the code to run
on. For example, if you use Bourne shell:
```bash
export MACOSX_DEPLOYMENT_TARGET=10.2
```
or, if you use C shell:
```bash
setenv MACOSX_DEPLOYMENT_TARGET 10.2
```
Alternatively, you could pass `-mmacosx-version-min=10.2` to gcc.
Here the number 10.2 is the lowest version that the built binaries can
run on. In the above cases, the built binaries will run on Mac OS X
10.2 and later, but _not_ earlier. If you want to run on earlier, you
have to set lower version, e.g., 10.0.
For classic Mac OS (Mac OS 7, 8, 9) please refer to builds/mac/README.
---
```
Copyright (C) 2003-2023 by
David Turner, Robert Wilhelm, and Werner Lemberg.
This file is part of the FreeType project, and may only be used,
modified, and distributed under the terms of the FreeType project
license, LICENSE.TXT. By continuing to use, modify, or distribute
this file you indicate that you have read the license and understand
and accept it fully.
```
docs/INSTALL_UNIX.md 0 → 100644
View file @ cb7f7760
# Building FreeType on Unix Systems
This also works for emulations like Cygwin or MSys on Win32:
## 1. Ensure that you are using GNU Make
The FreeType build system _exclusively_ works with GNU Make. You
will not be able to compile the library with the instructions
below using any other alternative (including BSD Make).
Check that you have GNU make by running the command:
make -v
This should dump some text that begins with:
GNU Make <version number>
Copyright (C) <year> Free Software Foundation Inc.
Note that version 3.81 or higher is *required* or the build will
fail.
It is also fine to have GNU Make under another name (e.g. 'gmake')
if you use the MAKE variable as described below.
As a special exception, 'makepp' can also be used to build
FreeType 2. See the file `docs/MAKEPP` for details.
For builds with `cmake` please check file `CMakeLists.txt`; this
is a contributed file not directly supported by the FreeType team.
## 2. Regenerate the configure script if needed
This only applies if you are building a git snapshot or checkout,
*not* if you grabbed the sources of an official release.
You need to invoke the `autogen.sh` script in the top-level
directory in order to create the `configure` script for your
platform. Normally, this simply means typing:
```bash
sh autogen.sh
```
In case of problems, you may need to install or upgrade Automake,
Autoconf or Libtool. See [INSTALL.md] for more information.
## 3. Build and install the library
Say
```bash
./configure --help
```
to see the list of possible configuration options and important
environment variables. The `./configure` script will detect some
prerequisite system libraries (libpng, brotli, etc.) if their
headers are available at the default locations.
The following should work on all Unix systems where the `make`
command invokes GNU Make:
```bash
./configure [options]
make
make install (as root)
```
The default installation path is `/usr/local`. It can be changed
with the `--prefix=<path>` option. Example:
```bash
./configure --prefix=/usr
```
When using a different command to invoke GNU Make, use the MAKE
variable. For example, if `gmake` is the command to use on your
system, do something like:
```bash
MAKE=gmake ./configure [options]
gmake
gmake install (as root)
```
If this still doesn't work, there must be a problem with your
system (e.g., you are using a very old version of GNU Make).
For library identification, FreeType's `configure` script uses the
`pkg-config` interface: Assuming it needs library `foo`, it calls
the `pkg-config` program to find information on library `foo`,
which in turn looks for a `foo.pc` file installed at the system.
Some platforms, however, don't come with `pkg-support`; you then
have to use environment variables as described by `configure
--help`. Example:
```bash
LIBPNG_CFLAGS="-I/path/to/libpng/include/directory" \
LIBPNG_LIBS="-L/path/to/libpng/lib/directory" \
configure ...
```
It is possible to compile FreeType in a different directory.
Assuming the FreeType source files in directory `/src/freetype` a
compilation in directory `foo` works as follows:
```bash
cd foo
/src/freetype/configure [options]
make
make install
```
### 3.1 Interdependency with HarfBuzz
Note that there is a chicken-and-egg problem currently since the
HarfBuzz library (used by the auto-hinter to improve support of
OpenType fonts) depends on FreeType, which can be solved as
follows in case HarfBuzz is not yet installed on your system.
1. Call FreeType's `configure` script with option
`--without-harfbuzz`, then compile and install FreeType.
2. Compile and install HarfBuzz.
3. Call FreeType's `configure` script without option
`--without-harfbuzz` (after executing `make distclean`), then
compile and install FreeType again.
---
```
Copyright (C) 2003-2023 by
David Turner, Robert Wilhelm, and Werner Lemberg.
This file is part of the FreeType project, and may only be used,
modified, and distributed under the terms of the FreeType project
license, LICENSE.TXT. By continuing to use, modify, or distribute
this file you indicate that you have read the license and understand
and accept it fully.
```
<!---->
[INSTALL.md]: ./INSTALL.md
docs/INSTALL.VMS → docs/INSTALL_VMS.md
View file @ cb7f7760
How to build the FreeType library on VMS
----------------------------------------
# How to build the FreeType library on VMS
It is actually very straightforward to install the FreeType library.
Just execute `vms_make.com from` the toplevel directory to build the
Just execute `vms_make.com` from the toplevel directory to build the
library. This procedure currently accepts the following options:
* `DEBUG`
- `DEBUG`
Build the library with debug information and without optimization.
* `lopts=<value>`
- `lopts=<value>`
Options to pass to the link command, e.g., `lopts=/traceback`.
* `ccopt=<value>`
- `ccopt=<value>`
Options to pass to the C compiler, e.g., `ccopt=/float=ieee`.
In case you did download the demos, place them in a separate directory
......@@ -20,23 +19,25 @@ same instructions as above for the demos from there. The build
process relies on this to figure out the location of the FreeType
include files.
To rebuild the sources it is necessary to have MMS/MMK installed on
the system.
The library is available in the directory
```
[.LIB]
```
To compile applications using FreeType you have to define the logical
`FREETYPE` pointing to the directory
```
[.INCLUDE.FREETYPE]
```
i.e., if the directory in which this `INSTALL.VMS` file is located is
`$disk:[freetype.docs]`, then define the logical with
```
define freetype $disk:[freetype.include.freetype]
```
See http://nchrem.tnw.tudelft.nl/openvms/software2.html#Freetype for
the packages FreeType depends on.
......@@ -45,7 +46,6 @@ The latest versions were tested using
- VSI C V7.4-002 and DECWindows V1.7-F on OpenVMS Alpha V8.4-2L1
- VSI C V7.4-001 and DECWindows V1.7-E on OpenVMS IA64 V8.4-2L3
Any problems can be reported to
Jouk Jansen <joukj@hrem.nano.tudelft.nl> or
......@@ -54,8 +54,8 @@ Orginal version of the build procedures was created by
Martin P.J. Zinser <zinser@zinser.no-ip.info>
------------------------------------------------------------------------
---
```
Copyright (C) 2000-2023 by
David Turner, Robert Wilhelm, and Werner Lemberg.
......@@ -64,6 +64,4 @@ modified, and distributed under the terms of the FreeType project
license, LICENSE.TXT. By continuing to use, modify, or distribute this
file you indicate that you have read the license and understand and
accept it fully.
--- end of INSTALL.VMS ---
```
docs/MODIFYING.md 0 → 100644
View file @ cb7f7760
# Modifying FreeType
FreeType follows a modular architecture, i.e. all the features are
implemented as separate modules. There are separate modules for
rasterizers, font parsers, hinting etc. located under the `src/` directory.
(See https://freetype.org/freetype2/docs/design/design-5.html)
To add new features you have to either modify the existing modules or
add a new module to FreeType.
## Adding a new module to FreeType
Suppose we want to add a new module "example" to FreeType:
1. Create a directory under `src/` having the same name as the module.
i.e. `src/example/`
2. Add source files under src/example having `#define FT_MAKE_OPTION_SINGLE_OBJECT`
which includes the other files to create the module.
(See `src/sdf/sdf.c` for reference)
3. Add the module to `include/freetype/config/ftmodule.h` according to whether
it is a renderer, font driver or another module like:
```C
FT_USE_MODULE( FT_Renderer_Class, ft_example_renderer_class )
```
4. Add the module to `modules.cfg` in the toplevel directory:
```
RASTER_MODULES += example
```
5. Under `src/example` add `module.mk` and `rules.mk` files to enable compilation
with `make`. (See `src/smooth/rules.mk` for reference).
6. Now you can simply compile by using `make` in the toplevel directory and the module
should compile.
You can check out pre-existing modules for reference under `src/`
docs/Raster_Algorithm.md 0 → 100644
View file @ cb7f7760
TODO: add details on how the freetype smooth anti-aliasing rasterizer works