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chore: migrate project into clean repository

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yuuux
2026-08-13 16:50:52 +08:00
commit d1d25a09e7
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16
arcs-sdk/modules/freetype/.clang-format Normal file
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BasedOnStyle: Chromium
AlignAfterOpenBracket: Align
AlignConsecutiveAssignments: true
AlignConsecutiveDeclarations: true
AlignConsecutiveMacros: true
AlignEscapedNewlines: true
# AlignOperands: Align
AlignTrailingComments: true
AlwaysBreakAfterReturnType: AllDefinitions
BreakBeforeBraces: Allman
ColumnLimit: 80
DerivePointerAlignment: false
IndentCaseLabels: false
PointerAlignment: Left
SpaceBeforeParens: ControlStatements
SpacesInParentheses: true

7
arcs-sdk/modules/freetype/.gitignore vendored Normal file
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/build/
/config.mk
include/dlg/
src/dlg/dlg.c
subprojects/*
!subprojects/*.wrap
/tests/data/*

241
arcs-sdk/modules/freetype/.gitlab-ci.yml Normal file
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# CI setup for FreeType.
# https://gitlab.freedesktop.org/freedesktop/freedesktop/-/issues/540
workflow:
rules:
- if: $CI_PIPELINE_SOURCE == 'merge_request_event'
- if: $CI_PIPELINE_SOURCE == 'push'
stages:
- build
# FIXME: Use --werror once warnings are fixed.
variables:
MESON_ARGS: --fatal-meson-warnings --default-library=both
MESON_ARGS_WINDOWS: ${MESON_ARGS} --force-fallback-for=zlib
.build windows common:
# TODO: should probably get its own image at some point instead of reusing the GStreamer one
# See https://gitlab.freedesktop.org/gstreamer/gstreamer/container_registry/18035 for latest
image: "registry.freedesktop.org/gstreamer/gstreamer/amd64/windows:2022-07-29.3-main"
stage: 'build'
tags:
- 'docker'
- 'windows'
- '2022'
- 'gstreamer-windows'
.build linux common:
# See
# https://gitlab.freedesktop.org/freetype/docker-images/container_registry/20896
image: 'registry.freedesktop.org/freetype/docker-images/debian:latest'
stage: 'build'
.build macos common:
stage: 'build'
tags:
- 'gst-macos-11.1'
.build windows meson:
extends: '.build windows common'
variables:
# Make sure any failure in PowerShell scripts is fatal.
ErrorActionPreference: 'Stop'
WarningPreference: 'Stop'
# Uncomment the following key if you need to pass custom args, as well
# with the `$env:MESON_ARGS` line in the `script:` blocks.
# MESON_ARGS: >-
# -Dfoo=enabled
# -Dbar=disabled
before_script:
# Update RootCAs in order to access to some sites.
- certutil -generateSSTFromWU "C:\roots.sst"
- Import-Certificate -CertStoreLocation "Cert:\LocalMachine\Root" "C:\roots.sst"
# Make sure meson is up to date so we don't need to rebuild the image
# with each release.
- pip3 install -U 'meson==0.59.*'
- pip3 install -U ninja
script:
# For some reason, options are separated by newlines instead of spaces,
# so we have to replace them first.
#
# - $env:MESON_ARGS = $env:MESON_ARGS.replace("`n"," ")
#
# Gitlab executes PowerShell in docker, but `VsDevCmd.bat` is a batch
# script. Environment variables substitutions is done by PowerShell
# before calling `cmd.exe`, that's why we use `$env:FOO` instead of
# `%FOO%`.
- cmd.exe /C "C:\BuildTools\Common7\Tools\VsDevCmd.bat -host_arch=amd64 -arch=$env:ARCH &&
meson setup build $env:MESON_ARGS_WINDOWS &&
meson compile --verbose -C build &&
meson test -C build &&
meson test -C build --benchmark"
.build windows msbuild:
extends: '.build windows common'
variables:
# Make sure any failure in PowerShell scripts is fatal.
ErrorActionPreference: 'Stop'
WarningPreference: 'Stop'
script:
- git submodule update --init --recursive
- cmd.exe /C "C:\BuildTools\Common7\Tools\VsDevCmd.bat -host_arch=amd64 -arch=$env:ARCH &&
MSBuild.exe -clp:ForceConsoleColor -t:Rebuild
-p:Configuration=Debug
-p:Platform=$env:PLATFORM
-p:UserDefines=FT_DEBUG_LOGGING
MSBuild.sln"
# Format of job names:
# <OS> <Build-Tool> <Build-Params> <Architecture>:
# Windows jobs.
windows meson vs2019 amd64:
extends: '.build windows meson'
variables:
ARCH: 'amd64'
windows meson vs2019 x86:
extends: '.build windows meson'
variables:
ARCH: 'x86'
windows msbuild vs2019 amd64:
extends: '.build windows msbuild'
variables:
ARCH: 'amd64'
PLATFORM: 'x64'
# Linux Jobs.
#
# Jobs with "libs" in the name force-enable libraries.
# They are disabled for the remaining jobs.
linux autotools:
extends: '.build linux common'
script: |
./autogen.sh
./configure --with-brotli=no \
--with-bzip2=no \
--with-harfbuzz=no \
--with-png=no \
--with-zlib=no \
CC=gcc
make -j$(nproc) && make install
linux autotools libs:
extends: '.build linux common'
script: |
./autogen.sh
./configure --with-brotli=yes \
--with-bzip2=yes \
--with-harfbuzz=yes \
--with-png=yes \
--with-zlib=yes \
CC=gcc
make -j$(nproc) && make install
linux autotools libs clang:
extends: '.build linux common'
script: |
./autogen.sh
./configure --with-brotli=yes \
--with-bzip2=yes \
--with-harfbuzz=yes \
--with-png=yes \
--with-zlib=yes \
CC=clang
make -j$(nproc) && make install
linux meson:
extends: '.build linux common'
script: |
meson setup build ${MESON_ARGS} \
-Dbrotli=disabled \
-Dbzip2=disabled \
-Dharfbuzz=disabled \
-Dpng=disabled \
-Dzlib=disabled
meson compile --verbose -C build
meson install -C build
linux meson libs:
extends: '.build linux common'
script: |
meson setup build ${MESON_ARGS} \
-Dbrotli=enabled \
-Dbzip2=enabled \
-Dharfbuzz=disabled \
-Dpng=disabled \
-Dzlib=disabled
meson compile --verbose -C build
meson install -C build
linux cmake:
extends: '.build linux common'
script: |
cmake -B build -D FT_DISABLE_BROTLI=TRUE \
-D FT_DISABLE_BZIP2=TRUE \
-D FT_DISABLE_HARFBUZZ=TRUE \
-D FT_DISABLE_PNG=TRUE \
-D FT_DISABLE_ZLIB=TRUE
cmake --build build --target install
linux cmake libs:
extends: '.build linux common'
script: |
cmake -B build -D FT_REQUIRE_BROTLI=TRUE \
-D FT_REQUIRE_BZIP2=TRUE \
-D FT_REQUIRE_HARFBUZZ=TRUE \
-D FT_REQUIRE_PNG=TRUE \
-D FT_REQUIRE_ZLIB=TRUE
cmake --build build --target install
# MacOS jobs.
macos autotools:
extends: '.build macos common'
before_script:
- '/bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install.sh)"'
script:
- brew install autoconf automake libtool
- ./autogen.sh
- ./configure
- 'make -j$(sysctl -n hw.logicalcpu)'
- make install
macos autotools clang:
extends: '.build macos common'
before_script:
- '/bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install.sh)"'
script:
- brew install autoconf automake libtool
- ./autogen.sh
- './configure CC=clang'
- 'make -j$(sysctl -n hw.logicalcpu)'
- make install
macos meson:
extends: '.build macos common'
script:
- pip3 install --upgrade pip
- pip3 install -U meson
- pip3 install --upgrade certifi
- pip3 install -U ninja
- meson setup build ${MESON_ARGS}
- meson compile --verbose -C build
- sudo meson install -C build

25
arcs-sdk/modules/freetype/.mailmap Normal file
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Alexander Borsuk <me@alex.bio> <alexander.borsuk@qnective.com>
Behdad Esfahbod (بهداد اسفهبد) <behdad@behdad.org> <behdad.esfahbod@gmail.com>
Behdad Esfahbod (بهداد اسفهبد) <behdad@behdad.org> <behdad@google.com>
Behdad Esfahbod (بهداد اسفهبد) <behdad@behdad.org>
Ewald Hew (Hew Yih Shiuan 丘毅宣) <ewaldhew@gmail.com>
Moazin Khatti (موؤذن کھٹی) <moazinkhatri@gmail.com>
Priyesh Kumar (प्रियेश कुमार) <priyeshkkumar@gmail.com>
Alexei Podtelezhnikov (Алексей Подтележников) <apodtele@gmail.com>
Nikhil Ramakrishnan (निखिल रामकृष्णन) <ramakrishnan.nikhil@gmail.com>
Dominik Röttsches <drott@chromium.org> <drott@google.com>
Kostya Serebryany <kcc@google.com> <konstantin.s.serebryany@gmail.com>
Suzuki, Toshiya (鈴木俊哉) <mpsuzuki@hiroshima-u.ac.jp> <sssa@flavor1.ipc.hiroshima-u.ac.jp>
Suzuki, Toshiya (鈴木俊哉) <mpsuzuki@hiroshima-u.ac.jp> sssa <sssa@IPA2004-mps.local>
Suzuki, Toshiya (鈴木俊哉) <mpsuzuki@hiroshima-u.ac.jp> sssa <sssa@sssas-powerbook-g4-12.local>
Suzuki, Toshiya (鈴木俊哉) <mpsuzuki@hiroshima-u.ac.jp> suzuki toshiya <mpsuzuki@hiroshima-u.ac.jp>
Bram Tassyns <bramt@enfocus.be> bram tassyns <BramT@enfocus.be>
Bram Tassyns <bramt@enfocus.be> <BramT@enfocus.com>
Anurag Thakur (अनुराग ठाकुर) <anuthadev@gmail.com>
David Turner <david@freetype.org> <david.turner.dev@gmail.com>
David Turner <david@freetype.org> <digit@google.com>
Anuj Verma (अनुज वर्मा) <anujv@iitbhilai.ac.in>
Ben Wagner <bungeman@gmail.com>
Ben Wagner <bungeman@gmail.com> <bungeman@google.com>
Ben Wagner <bungeman@gmail.com> <bungeman@chromium.org>
Nikolaus Waxweiler <madigens@gmail.com> <nikolaus.waxweiler@daltonmaag.com>

13
arcs-sdk/modules/freetype/CMakeLists.txt Normal file
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if (DEFINED CONFIG_SDK_MODULE_FREETYPE)
# 禁用 HarfBuzz 和 Brotli 依赖，因为它们与 RISC-V 目标不兼容
# 必须在 include 原始 CMakeLists.txt 之前设置这些变量
set(FT_DISABLE_HARFBUZZ TRUE CACHE BOOL "Disable use of system harfbuzz" FORCE)
set(FT_DISABLE_BROTLI TRUE CACHE BOOL "Disable use of system brotli" FORCE)
# Include the original CMakeLists.txt
include(${CMAKE_CURRENT_SOURCE_DIR}/CMakeLists.txt.orig)
listenai_link_libraries(freetype)
endif()

683
arcs-sdk/modules/freetype/CMakeLists.txt.orig Normal file
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# CMakeLists.txt
#
# Copyright (C) 2013-2024 by
# David Turner, Robert Wilhelm, and Werner Lemberg.
#
# Written originally by John Cary <cary@txcorp.com>
#
# 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.
#
#
# The following will (1) create a build directory, and (2) change into it and
# call cmake to configure the build with default parameters as a static
# library. See
#
# https://cmake.org/cmake/help/latest/variable/CMAKE_BUILD_TYPE.html
#
# for information about debug or release builds, for example
#
# cmake -B build -D CMAKE_BUILD_TYPE=Release
#
#
# For a dynamic library, use
#
# cmake -B build -D BUILD_SHARED_LIBS=true -D CMAKE_BUILD_TYPE=Release
#
# For a framework on OS X, use
#
# cmake -E chdir build cmake -G Xcode -D BUILD_FRAMEWORK:BOOL=true ..
#
# For an iOS static library, use
#
# cmake -E chdir build cmake -G Xcode -D IOS_PLATFORM=OS ..
#
# or
#
# cmake -E chdir build cmake -G Xcode -D IOS_PLATFORM=SIMULATOR ..
#
# or
#
# cmake -E chdir build cmake -G Xcode -D IOS_PLATFORM=SIMULATOR64 ..
#
#
# Finally, build the project with
#
# cmake --build build
#
# Install it with
#
# (sudo) cmake --build build --target install
#
# A binary distribution can be made with
#
# cmake --build build --config Release --target package
#
# Please refer to the cmake manual for further options, in particular, how
# to modify compilation and linking parameters.
#
# Some notes.
#
# - Say `cmake -LAH` to see all configuration options.
#
# - `cmake' creates configuration files in
#
# <build-directory>/include/freetype/config
#
# which should be further modified if necessary.
#
# - You can use `cmake' directly on a freshly cloned FreeType git
# repository.
#
# - `CMakeLists.txt' is provided as-is since it is normally not used by the
# developer team.
#
# - Set the `FT_REQUIRE_ZLIB', `FT_REQUIRE_BZIP2', `FT_REQUIRE_PNG',
# `FT_REQUIRE_HARFBUZZ', and `FT_REQUIRE_BROTLI' CMake variables to `ON'
# or `TRUE' to force using a dependency. Leave a variable undefined
# (which is the default) to use the dependency only if it is available.
# Example:
#
# cmake -B build -D FT_REQUIRE_ZLIB=TRUE \
# -D FT_REQUIRE_BZIP2=TRUE \
# -D FT_REQUIRE_PNG=TRUE \
# -D FT_REQUIRE_HARFBUZZ=TRUE \
# -D FT_REQUIRE_BROTLI=TRUE [...]
#
# - Set `FT_DISABLE_XXX=TRUE' to disable a dependency completely (where
# `XXX' is a CMake package name like `BZip2'). Example for disabling all
# dependencies:
#
# cmake -B build -D FT_DISABLE_ZLIB=TRUE \
# -D FT_DISABLE_BZIP2=TRUE \
# -D FT_DISABLE_PNG=TRUE \
# -D FT_DISABLE_HARFBUZZ=TRUE \
# -D FT_DISABLE_BROTLI=TRUE [...]
#
# - NOTE: If a package is set as DISABLED, it cannot be set as REQUIRED
# without unsetting the DISABLED value first. For example, if
# `FT_DISABLE_HARFBUZZ=TRUE' has been set (Cache is present), you need to
# call `FT_DISABLE_HARFBUZZ=FALSE' before calling
# `FT_REQUIRE_HARFBUZZ=TRUE'.
#
# - Installation of FreeType can be controlled with the CMake variables
# `SKIP_INSTALL_HEADERS', `SKIP_INSTALL_LIBRARIES', and `SKIP_INSTALL_ALL'
# (this is compatible with the same CMake variables in zlib's CMake
# support).
# To minimize the number of cmake_policy() workarounds,
# CMake >= 3 is requested.
cmake_minimum_required(VERSION 3.0...3.5)
if (NOT CMAKE_VERSION VERSION_LESS 3.3)
# Allow symbol visibility settings also on static libraries. CMake < 3.3
# only sets the property on a shared library build.
cmake_policy(SET CMP0063 NEW)
# Support new IN_LIST if() operator.
cmake_policy(SET CMP0057 NEW)
endif ()
include(CheckIncludeFile)
include(CMakeDependentOption)
# CMAKE_TOOLCHAIN_FILE must be set before `project' is called, which
# configures the base build environment and references the toolchain file
if (APPLE)
if (DEFINED IOS_PLATFORM)
if (NOT "${IOS_PLATFORM}" STREQUAL "OS"
AND NOT "${IOS_PLATFORM}" STREQUAL "SIMULATOR"
AND NOT "${IOS_PLATFORM}" STREQUAL "SIMULATOR64")
message(FATAL_ERROR
"IOS_PLATFORM must be set to either OS, SIMULATOR, or SIMULATOR64")
endif ()
if (NOT "${CMAKE_GENERATOR}" STREQUAL "Xcode")
message(AUTHOR_WARNING
"You should use Xcode generator with IOS_PLATFORM enabled to get Universal builds.")
endif ()
if (BUILD_SHARED_LIBS)
message(FATAL_ERROR
"BUILD_SHARED_LIBS can not be on with IOS_PLATFORM enabled")
endif ()
if (BUILD_FRAMEWORK)
message(FATAL_ERROR
"BUILD_FRAMEWORK can not be on with IOS_PLATFORM enabled")
endif ()
# iOS only uses static libraries
set(BUILD_SHARED_LIBS OFF)
set(CMAKE_TOOLCHAIN_FILE
${CMAKE_SOURCE_DIR}/builds/cmake/iOS.cmake)
endif ()
else ()
if (DEFINED IOS_PLATFORM)
message(FATAL_ERROR "IOS_PLATFORM is not supported on this platform")
endif ()
endif ()
project(freetype C)
set(VERSION_MAJOR "2")
set(VERSION_MINOR "13")
set(VERSION_PATCH "3")
# Generate LIBRARY_VERSION and LIBRARY_SOVERSION.
set(LIBTOOL_REGEX "version_info='([0-9]+):([0-9]+):([0-9]+)'")
file(STRINGS "${PROJECT_SOURCE_DIR}/builds/unix/configure.raw"
VERSION_INFO
REGEX ${LIBTOOL_REGEX})
string(REGEX REPLACE
${LIBTOOL_REGEX} "\\1"
LIBTOOL_CURRENT "${VERSION_INFO}")
string(REGEX REPLACE
${LIBTOOL_REGEX} "\\2"
LIBTOOL_REVISION "${VERSION_INFO}")
string(REGEX REPLACE
${LIBTOOL_REGEX} "\\3"
LIBTOOL_AGE "${VERSION_INFO}")
# This is what libtool does internally on Unix platforms.
math(EXPR LIBRARY_SOVERSION "${LIBTOOL_CURRENT} - ${LIBTOOL_AGE}")
set(LIBRARY_VERSION "${LIBRARY_SOVERSION}.${LIBTOOL_AGE}.${LIBTOOL_REVISION}")
# External dependency library detection is automatic. See the notes at the
# top of this file, for how to force or disable dependencies completely.
option(FT_DISABLE_ZLIB
"Disable use of system zlib and use internal zlib library instead." OFF)
cmake_dependent_option(FT_REQUIRE_ZLIB
"Require system zlib instead of internal zlib library." OFF
"NOT FT_DISABLE_ZLIB" OFF)
option(FT_DISABLE_BZIP2
"Disable support of bzip2 compressed fonts." OFF)
cmake_dependent_option(FT_REQUIRE_BZIP2
"Require support of bzip2 compressed fonts." OFF
"NOT FT_DISABLE_BZIP2" OFF)
option(FT_DISABLE_PNG
"Disable support of PNG compressed OpenType embedded bitmaps." OFF)
cmake_dependent_option(FT_REQUIRE_PNG
"Require support of PNG compressed OpenType embedded bitmaps." OFF
"NOT FT_DISABLE_PNG" OFF)
option(FT_DISABLE_HARFBUZZ
"Disable HarfBuzz (used for improving auto-hinting of OpenType fonts)." OFF)
cmake_dependent_option(FT_REQUIRE_HARFBUZZ
"Require HarfBuzz for improving auto-hinting of OpenType fonts." OFF
"NOT FT_DISABLE_HARFBUZZ" OFF)
option(FT_DISABLE_BROTLI
"Disable support of compressed WOFF2 fonts." OFF)
cmake_dependent_option(FT_REQUIRE_BROTLI
"Require support of compressed WOFF2 fonts." OFF
"NOT FT_DISABLE_BROTLI" OFF)
option(FT_ENABLE_ERROR_STRINGS
"Enable support for meaningful error descriptions." OFF)
# Disallow in-source builds
if ("${CMAKE_BINARY_DIR}" STREQUAL "${CMAKE_SOURCE_DIR}")
message(FATAL_ERROR
"In-source builds are not permitted! Make a separate folder for"
" building, e.g.,\n"
" cmake -E make_directory build\n"
" cmake -E chdir build cmake ..\n"
"Before that, remove the files created by this failed run with\n"
" cmake -E remove CMakeCache.txt\n"
" cmake -E remove_directory CMakeFiles")
endif ()
# Add local cmake modules
list(APPEND CMAKE_MODULE_PATH ${PROJECT_SOURCE_DIR}/builds/cmake)
if (BUILD_FRAMEWORK)
if (NOT "${CMAKE_GENERATOR}" STREQUAL "Xcode")
message(FATAL_ERROR
"You should use Xcode generator with BUILD_FRAMEWORK enabled")
endif ()
set(CMAKE_OSX_ARCHITECTURES "$(ARCHS_STANDARD)")
set(BUILD_SHARED_LIBS ON)
endif ()
# Find dependencies
include(FindPkgConfig)
if (NOT FT_DISABLE_HARFBUZZ)
set(HARFBUZZ_MIN_VERSION "2.0.0")
if (FT_REQUIRE_HARFBUZZ)
find_package(HarfBuzz ${HARFBUZZ_MIN_VERSION} REQUIRED)
else ()
find_package(HarfBuzz ${HARFBUZZ_MIN_VERSION})
endif ()
endif ()
if (NOT FT_DISABLE_PNG)
if (FT_REQUIRE_PNG)
find_package(PNG REQUIRED)
else ()
find_package(PNG)
endif ()
# FreePNG calls FindZLIB so unset ZLIB_FOUND to respect FT_DISABLE_ZLIB
unset(ZLIB_FOUND)
endif ()
if (NOT FT_DISABLE_ZLIB)
if (FT_REQUIRE_ZLIB)
find_package(ZLIB REQUIRED)
else ()
find_package(ZLIB)
endif ()
endif ()
if (NOT FT_DISABLE_BZIP2)
# Genuine BZip2 does not provide bzip2.pc, but some platforms have it.
# For better dependency in freetype2.pc, bzip2.pc is searched
# regardless of the availability of libbz2. If bzip2.pc is found,
# Requires.private is used instead of Libs.private.
if (FT_REQUIRE_BZIP2)
find_package(BZip2 REQUIRED)
else ()
find_package(BZip2)
endif ()
pkg_check_modules(PC_BZIP2 bzip2)
endif ()
if (NOT FT_DISABLE_BROTLI)
if (FT_REQUIRE_BROTLI)
find_package(BrotliDec REQUIRED)
else ()
find_package(BrotliDec)
endif ()
endif ()
# Create the configuration file
if (UNIX AND NOT WIN32)
check_include_file("unistd.h" HAVE_UNISTD_H)
check_include_file("fcntl.h" HAVE_FCNTL_H)
file(READ "${PROJECT_SOURCE_DIR}/builds/unix/ftconfig.h.in"
FTCONFIG_H)
if (HAVE_UNISTD_H)
string(REGEX REPLACE
"#undef +(HAVE_UNISTD_H)" "#define \\1 1"
FTCONFIG_H "${FTCONFIG_H}")
endif ()
if (HAVE_FCNTL_H)
string(REGEX REPLACE
"#undef +(HAVE_FCNTL_H)" "#define \\1 1"
FTCONFIG_H "${FTCONFIG_H}")
endif ()
else ()
file(READ "${PROJECT_SOURCE_DIR}/include/freetype/config/ftconfig.h"
FTCONFIG_H)
endif ()
set(FTCONFIG_H_NAME "${PROJECT_BINARY_DIR}/include/freetype/config/ftconfig.h")
if (EXISTS "${FTCONFIG_H_NAME}")
file(READ "${FTCONFIG_H_NAME}" ORIGINAL_FTCONFIG_H)
else ()
set(ORIGINAL_FTCONFIG_H "")
endif ()
if (NOT (ORIGINAL_FTCONFIG_H STREQUAL FTCONFIG_H))
file(WRITE "${FTCONFIG_H_NAME}" "${FTCONFIG_H}")
endif ()
# Create the options file
file(READ "${PROJECT_SOURCE_DIR}/include/freetype/config/ftoption.h"
FTOPTION_H)
if (ZLIB_FOUND)
string(REGEX REPLACE
"/\\* +(#define +FT_CONFIG_OPTION_SYSTEM_ZLIB) +\\*/" "\\1"
FTOPTION_H "${FTOPTION_H}")
endif ()
if (BZIP2_FOUND)
string(REGEX REPLACE
"/\\* +(#define +FT_CONFIG_OPTION_USE_BZIP2) +\\*/" "\\1"
FTOPTION_H "${FTOPTION_H}")
endif ()
if (PNG_FOUND)
string(REGEX REPLACE
"/\\* +(#define +FT_CONFIG_OPTION_USE_PNG) +\\*/" "\\1"
FTOPTION_H "${FTOPTION_H}")
endif ()
if (HARFBUZZ_FOUND)
string(REGEX REPLACE
"/\\* +(#define +FT_CONFIG_OPTION_USE_HARFBUZZ) +\\*/" "\\1"
FTOPTION_H "${FTOPTION_H}")
endif ()
if (BROTLIDEC_FOUND)
string(REGEX REPLACE
"/\\* +(#define +FT_CONFIG_OPTION_USE_BROTLI) +\\*/" "\\1"
FTOPTION_H "${FTOPTION_H}")
endif ()
if (FT_ENABLE_ERROR_STRINGS)
string(REGEX REPLACE
"/\\* +(#define +FT_CONFIG_OPTION_ERROR_STRINGS) +\\*/" "\\1"
FTOPTION_H "${FTOPTION_H}")
endif ()
set(FTOPTION_H_NAME "${PROJECT_BINARY_DIR}/include/freetype/config/ftoption.h")
if (EXISTS "${FTOPTION_H_NAME}")
file(READ "${FTOPTION_H_NAME}" ORIGINAL_FTOPTION_H)
else ()
set(ORIGINAL_FTOPTION_H "")
endif ()
if (NOT (ORIGINAL_FTOPTION_H STREQUAL FTOPTION_H))
file(WRITE "${FTOPTION_H_NAME}" "${FTOPTION_H}")
endif ()
file(GLOB PUBLIC_HEADERS "include/ft2build.h" "include/freetype/*.h")
file(GLOB PUBLIC_CONFIG_HEADERS "include/freetype/config/*.h")
file(GLOB PRIVATE_HEADERS "include/freetype/internal/*.h")
set(BASE_SRCS
src/autofit/autofit.c
src/base/ftbase.c
src/base/ftbbox.c
src/base/ftbdf.c
src/base/ftbitmap.c
src/base/ftcid.c
src/base/ftfstype.c
src/base/ftgasp.c
src/base/ftglyph.c
src/base/ftgxval.c
src/base/ftinit.c
src/base/ftmm.c
src/base/ftotval.c
src/base/ftpatent.c
src/base/ftpfr.c
src/base/ftstroke.c
src/base/ftsynth.c
src/base/fttype1.c
src/base/ftwinfnt.c
src/bdf/bdf.c
src/bzip2/ftbzip2.c
src/cache/ftcache.c
src/cff/cff.c
src/cid/type1cid.c
src/gzip/ftgzip.c
src/lzw/ftlzw.c
src/pcf/pcf.c
src/pfr/pfr.c
src/psaux/psaux.c
src/pshinter/pshinter.c
src/psnames/psnames.c
src/raster/raster.c
src/sdf/sdf.c
src/sfnt/sfnt.c
src/smooth/smooth.c
src/svg/svg.c
src/truetype/truetype.c
src/type1/type1.c
src/type42/type42.c
src/winfonts/winfnt.c
)
if (WIN32)
list(APPEND BASE_SRCS "builds/windows/ftsystem.c")
elseif (UNIX)
list(APPEND BASE_SRCS "builds/unix/ftsystem.c")
else ()
list(APPEND BASE_SRCS "src/base/ftsystem.c")
endif ()
if (WIN32)
enable_language(RC)
list(APPEND BASE_SRCS builds/windows/ftdebug.c
src/base/ftver.rc)
elseif (WINCE)
list(APPEND BASE_SRCS builds/wince/ftdebug.c)
else ()
list(APPEND BASE_SRCS src/base/ftdebug.c)
endif ()
if (BUILD_FRAMEWORK)
list(APPEND BASE_SRCS builds/mac/freetype-Info.plist)
endif ()
if (NOT DISABLE_FORCE_DEBUG_POSTFIX)
set(CMAKE_DEBUG_POSTFIX d)
endif ()
add_library(freetype
${PUBLIC_HEADERS}
${PUBLIC_CONFIG_HEADERS}
${PRIVATE_HEADERS}
${BASE_SRCS}
)
set_target_properties(
freetype PROPERTIES
C_VISIBILITY_PRESET hidden)
target_compile_definitions(
freetype PRIVATE FT2_BUILD_LIBRARY)
if (WIN32)
target_compile_definitions(
freetype PRIVATE _CRT_SECURE_NO_WARNINGS _CRT_NONSTDC_NO_WARNINGS)
if (BUILD_SHARED_LIBS)
target_compile_definitions(
freetype PRIVATE DLL_EXPORT)
endif ()
endif ()
if (BUILD_SHARED_LIBS)
set_target_properties(freetype PROPERTIES
VERSION ${LIBRARY_VERSION}
SOVERSION ${LIBRARY_SOVERSION})
endif ()
# Pick up ftconfig.h and ftoption.h generated above, first.
target_include_directories(
freetype
PUBLIC
$<INSTALL_INTERFACE:include/freetype2>
$<BUILD_INTERFACE:${CMAKE_CURRENT_BINARY_DIR}/include>
$<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/include>
PRIVATE
${CMAKE_CURRENT_BINARY_DIR}/include
${CMAKE_CURRENT_SOURCE_DIR}/include
# Make <ftconfig.h> available for builds/unix/ftsystem.c.
${CMAKE_CURRENT_BINARY_DIR}/include/freetype/config
)
if (BUILD_FRAMEWORK)
set_property(SOURCE ${PUBLIC_CONFIG_HEADERS}
PROPERTY MACOSX_PACKAGE_LOCATION Headers/config
)
set_target_properties(freetype PROPERTIES
FRAMEWORK TRUE
MACOSX_FRAMEWORK_INFO_PLIST ${CMAKE_CURRENT_SOURCE_DIR}/builds/mac/freetype-Info.plist
PUBLIC_HEADER "${PUBLIC_HEADERS}"
XCODE_ATTRIBUTE_INSTALL_PATH "@rpath"
)
endif ()
# 'freetype-interface' is an interface library, to be accessed with
# `EXPORT_NAME Freetype::Freetype`. This is the target name provided by
# CMake's `FindFreetype.cmake`, so we provide it for compatibility.
add_library(freetype-interface INTERFACE)
set_target_properties(freetype-interface PROPERTIES
EXPORT_NAME Freetype::Freetype
INTERFACE_LINK_LIBRARIES freetype)
set(PKGCONFIG_REQUIRES "")
set(PKGCONFIG_REQUIRES_PRIVATE "")
set(PKGCONFIG_LIBS "-L\${libdir} -lfreetype")
set(PKGCONFIG_LIBS_PRIVATE "")
if (ZLIB_FOUND)
target_link_libraries(freetype PRIVATE ${ZLIB_LIBRARIES})
target_include_directories(freetype PRIVATE ${ZLIB_INCLUDE_DIRS})
list(APPEND PKGCONFIG_REQUIRES_PRIVATE "zlib")
endif ()
if (BZIP2_FOUND)
target_link_libraries(freetype PRIVATE ${BZIP2_LIBRARIES})
target_include_directories(freetype PRIVATE ${BZIP2_INCLUDE_DIR}) # not BZIP2_INCLUDE_DIRS
if (PC_BZIP2_FOUND)
list(APPEND PKGCONFIG_REQUIRES_PRIVATE "bzip2")
else ()
list(APPEND PKGCONFIG_LIBS_PRIVATE "-lbz2")
endif ()
endif ()
if (PNG_FOUND)
target_link_libraries(freetype PRIVATE ${PNG_LIBRARIES})
target_compile_definitions(freetype PRIVATE ${PNG_DEFINITIONS})
target_include_directories(freetype PRIVATE ${PNG_INCLUDE_DIRS})
list(APPEND PKGCONFIG_REQUIRES_PRIVATE "libpng")
endif ()
if (HarfBuzz_FOUND)
target_link_libraries(freetype PRIVATE ${HarfBuzz_LIBRARY})
target_include_directories(freetype PRIVATE ${HarfBuzz_INCLUDE_DIRS})
list(APPEND PKGCONFIG_REQUIRES_PRIVATE "harfbuzz >= ${HARFBUZZ_MIN_VERSION}")
endif ()
if (BROTLIDEC_FOUND)
target_link_libraries(freetype PRIVATE ${BROTLIDEC_LIBRARIES})
target_compile_definitions(freetype PRIVATE ${BROTLIDEC_DEFINITIONS})
target_include_directories(freetype PRIVATE ${BROTLIDEC_INCLUDE_DIRS})
list(APPEND PKGCONFIG_REQUIRES_PRIVATE "libbrotlidec")
endif ()
# Installation
include(GNUInstallDirs)
if (NOT SKIP_INSTALL_HEADERS AND NOT SKIP_INSTALL_ALL)
install(
# Note the trailing slash in the argument to `DIRECTORY'!
DIRECTORY ${PROJECT_SOURCE_DIR}/include/
DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}/freetype2
COMPONENT headers
PATTERN "internal" EXCLUDE
PATTERN "ftconfig.h" EXCLUDE
PATTERN "ftoption.h" EXCLUDE)
install(
FILES ${PROJECT_BINARY_DIR}/include/freetype/config/ftconfig.h
${PROJECT_BINARY_DIR}/include/freetype/config/ftoption.h
DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}/freetype2/freetype/config
COMPONENT headers)
endif ()
if (NOT SKIP_INSTALL_LIBRARIES AND NOT SKIP_INSTALL_ALL)
# Generate the pkg-config file
file(READ "${PROJECT_SOURCE_DIR}/builds/unix/freetype2.in" FREETYPE2_PC_IN)
string(REPLACE ";" ", " PKGCONFIG_REQUIRES_PRIVATE "${PKGCONFIG_REQUIRES_PRIVATE}")
string(REPLACE "%prefix%" ${CMAKE_INSTALL_PREFIX}
FREETYPE2_PC_IN ${FREETYPE2_PC_IN})
string(REPLACE "%exec_prefix%" "\${prefix}"
FREETYPE2_PC_IN ${FREETYPE2_PC_IN})
string(REPLACE "%libdir%" "\${prefix}/${CMAKE_INSTALL_LIBDIR}"
FREETYPE2_PC_IN ${FREETYPE2_PC_IN})
string(REPLACE "%includedir%" "\${prefix}/${CMAKE_INSTALL_INCLUDEDIR}"
FREETYPE2_PC_IN ${FREETYPE2_PC_IN})
string(REPLACE "%ft_version%" "${LIBTOOL_CURRENT}.${LIBTOOL_REVISION}.${LIBTOOL_AGE}"
FREETYPE2_PC_IN ${FREETYPE2_PC_IN})
if (BUILD_SHARED_LIBS)
string(REPLACE "%PKGCONFIG_REQUIRES%" "${PKGCONFIG_REQUIRES}"
FREETYPE2_PC_IN ${FREETYPE2_PC_IN})
string(REPLACE "%PKGCONFIG_REQUIRES_PRIVATE%" "${PKGCONFIG_REQUIRES_PRIVATE}"
FREETYPE2_PC_IN ${FREETYPE2_PC_IN})
string(REPLACE "%PKGCONFIG_LIBS%" "${PKGCONFIG_LIBS}"
FREETYPE2_PC_IN ${FREETYPE2_PC_IN})
string(REPLACE "%PKGCONFIG_LIBS_PRIVATE%" "${PKGCONFIG_LIBS_PRIVATE}"
FREETYPE2_PC_IN ${FREETYPE2_PC_IN})
else ()
string(REPLACE "%PKGCONFIG_REQUIRES%" "${PKGCONFIG_REQUIRES} ${PKGCONFIG_REQUIRES_PRIVATE}"
FREETYPE2_PC_IN ${FREETYPE2_PC_IN})
string(REPLACE "%PKGCONFIG_REQUIRES_PRIVATE%" ""
FREETYPE2_PC_IN ${FREETYPE2_PC_IN})
string(REPLACE "%PKGCONFIG_LIBS%" "${PKGCONFIG_LIBS} ${PKGCONFIG_LIBS_PRIVATE}"
FREETYPE2_PC_IN ${FREETYPE2_PC_IN})
string(REPLACE "%PKGCONFIG_LIBS_PRIVATE%" ""
FREETYPE2_PC_IN ${FREETYPE2_PC_IN})
endif ()
set(FREETYPE2_PC_IN_NAME "${PROJECT_BINARY_DIR}/freetype2.pc")
if (EXISTS "${FREETYPE2_PC_IN_NAME}")
file(READ "${FREETYPE2_PC_IN_NAME}" ORIGINAL_FREETYPE2_PC_IN)
else ()
set(ORIGINAL_FREETYPE2_PC_IN "")
endif ()
if (NOT (ORIGINAL_FREETYPE2_PC_IN STREQUAL FREETYPE2_PC_IN))
file(WRITE "${FREETYPE2_PC_IN_NAME}" ${FREETYPE2_PC_IN})
endif ()
install(
FILES ${PROJECT_BINARY_DIR}/freetype2.pc
DESTINATION ${CMAKE_INSTALL_LIBDIR}/pkgconfig
COMPONENT pkgconfig)
include(CMakePackageConfigHelpers)
write_basic_package_version_file(
${PROJECT_BINARY_DIR}/freetype-config-version.cmake
VERSION ${VERSION_MAJOR}.${VERSION_MINOR}.${VERSION_PATCH}
COMPATIBILITY SameMajorVersion)
install(
TARGETS freetype freetype-interface
EXPORT freetype-targets
LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
FRAMEWORK DESTINATION Library/Frameworks
COMPONENT libraries)
install(
EXPORT freetype-targets
DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/freetype
FILE freetype-config.cmake
COMPONENT headers)
install(
FILES ${PROJECT_BINARY_DIR}/freetype-config-version.cmake
DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/freetype
COMPONENT headers)
endif ()
# Packaging
set(CPACK_PACKAGE_NAME ${CMAKE_PROJECT_NAME})
set(CPACK_PACKAGE_DESCRIPTION_SUMMARY "The FreeType font rendering library.")
set(CPACK_PACKAGE_DESCRIPTION_FILE "${CMAKE_CURRENT_SOURCE_DIR}/README")
set(CPACK_RESOURCE_FILE_LICENSE "${CMAKE_CURRENT_SOURCE_DIR}/LICENSE.TXT")
set(CPACK_PACKAGE_VERSION_MAJOR ${VERSION_MAJOR})
set(CPACK_PACKAGE_VERSION_MINOR ${VERSION_MINOR})
set(CPACK_PACKAGE_VERSION_PATCH ${VERSION_PATCH})
set(CPACK_PACKAGE_VERSION "${CPACK_PACKAGE_VERSION_MAJOR}.${CPACK_PACKAGE_VERSION_MINOR}.${CPACK_PACKAGE_VERSION_PATCH}")
if (WIN32)
set(CPACK_GENERATOR ZIP)
else ()
set(CPACK_GENERATOR TGZ)
endif ()
set(CPACK_COMPONENT_LIBRARIES_DISPLAY_NAME "Libraries")
set(CPACK_COMPONENT_HEADERS_DISPLAY_NAME "C/C++ Headers")
set(CPACK_COMPONENT_LIBRARIES_DESCRIPTION
"Library used to build programs which use FreeType")
set(CPACK_COMPONENT_HEADERS_DESCRIPTION
"C/C++ header files for use with FreeType")
set(CPACK_COMPONENT_HEADERS_DEPENDS libraries)
set(CPACK_COMPONENT_LIBRARIES_GROUP "Development")
set(CPACK_COMPONENT_HEADERS_GROUP "Development")
include(CPack)

7
arcs-sdk/modules/freetype/Kconfig Normal file
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menu "freetype configuration"
config SDK_MODULE_FREETYPE
bool "freetype support"
default n
endmenu

46
arcs-sdk/modules/freetype/LICENSE.TXT Normal file
View File

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FREETYPE LICENSES
-----------------
The FreeType 2 font engine is copyrighted work and cannot be used
legally without a software license. In order to make this project
usable to a vast majority of developers, we distribute it under two
mutually exclusive open-source licenses.
This means that *you* must choose *one* of the two licenses described
below, then obey all its terms and conditions when using FreeType 2 in
any of your projects or products.
- The FreeType License, found in the file `docs/FTL.TXT`, which is
similar to the original BSD license *with* an advertising clause
that forces you to explicitly cite the FreeType project in your
product's documentation. All details are in the license file.
This license is suited to products which don't use the GNU General
Public License.
Note that this license is compatible to the GNU General Public
License version 3, but not version 2.
- The GNU General Public License version 2, found in
`docs/GPLv2.TXT` (any later version can be used also), for
programs which already use the GPL. Note that the FTL is
incompatible with GPLv2 due to its advertisement clause.
The contributed BDF and PCF drivers come with a license similar to
that of the X Window System. It is compatible to the above two
licenses (see files `src/bdf/README` and `src/pcf/README`). The same
holds for the source code files `src/base/fthash.c` and
`include/freetype/internal/fthash.h`; they were part of the BDF driver
in earlier FreeType versions.
The gzip module uses the zlib license (see `src/gzip/zlib.h`) which
too is compatible to the above two licenses.
The files `src/autofit/ft-hb.c` and `src/autofit/ft-hb.h` contain code
taken almost verbatim from the HarfBuzz file `hb-ft.cc`, which uses
the 'Old MIT' license, compatible to the above two licenses.
The MD5 checksum support (only used for debugging in development
builds) is in the public domain.
--- end of LICENSE.TXT ---

2
arcs-sdk/modules/freetype/MSBuild.rsp Normal file
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#/p:WindowsTargetPlatformVersion=10.0.16299.0
/p:Configuration="Release"

66
arcs-sdk/modules/freetype/MSBuild.sln Normal file
View File

@@ -0,0 +1,66 @@
Microsoft Visual Studio Solution File, Format Version 11.00
# Visual Studio Express 2012 for Windows Desktop
#
# You can build FreeType with MSBuild as follows
#
# MSBuild.exe -t:Rebuild
# -p:Configuration=Debug
# -p:Platform=x64
# -p:UserDefines=FT_DEBUG_LOGGING
# MSBuild.sln
#
# or with different appropriate switches. The library file
# freetype.dll and/or freetype.lib should appear in the objs/
# folder. A copy should be sent to ../freetype-demos/bin/
# to be used with the demo programs.
#
Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "freetype", "builds\windows\vc2010\freetype.vcxproj", "{78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}"
EndProject
Global
GlobalSection(SolutionConfigurationPlatforms) = preSolution
Debug|x64 = Debug|x64
Debug|ARM64 = Debug|ARM64
Debug|Win32 = Debug|Win32
Debug Static|x64 = Debug Static|x64
Debug Static|ARM64 = Debug Static|ARM64
Debug Static|Win32 = Debug Static|Win32
Release|x64 = Release|x64
Release|ARM64 = Release|ARM64
Release|Win32 = Release|Win32
Release Static|x64 = Release Static|x64
Release Static|ARM64 = Release Static|ARM64
Release Static|Win32 = Release Static|Win32
EndGlobalSection
GlobalSection(ProjectConfigurationPlatforms) = postSolution
{78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.Debug|x64.ActiveCfg = Debug|x64
{78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.Debug|x64.Build.0 = Debug|x64
{78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.Debug|ARM64.ActiveCfg = Debug|ARM64
{78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.Debug|ARM64.Build.0 = Debug|ARM64
{78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.Debug|Win32.ActiveCfg = Debug|Win32
{78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.Debug|Win32.Build.0 = Debug|Win32
{78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.Debug Static|x64.ActiveCfg = Debug Static|x64
{78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.Debug Static|x64.Build.0 = Debug Static|x64
{78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.Debug Static|ARM64.ActiveCfg = Debug Static|ARM64
{78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.Debug Static|ARM64.Build.0 = Debug Static|ARM64
{78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.Debug Static|Win32.ActiveCfg = Debug Static|Win32
{78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.Debug Static|Win32.Build.0 = Debug Static|Win32
{78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.Release|x64.ActiveCfg = Release|x64
{78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.Release|x64.Build.0 = Release|x64
{78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.Release|ARM64.ActiveCfg = Release|ARM64
{78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.Release|ARM64.Build.0 = Release|ARM64
{78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.Release|Win32.ActiveCfg = Release|Win32
{78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.Release|Win32.Build.0 = Release|Win32
{78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.Release Static|x64.ActiveCfg = Release Static|x64
{78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.Release Static|x64.Build.0 = Release Static|x64
{78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.Release Static|ARM64.ActiveCfg = Release Static|ARM64
{78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.Release Static|ARM64.Build.0 = Release Static|ARM64
{78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.Release Static|Win32.ActiveCfg = Release Static|Win32
{78B079BD-9FC7-4B9E-B4A6-96DA0F00248B}.Release Static|Win32.Build.0 = Release Static|Win32
EndGlobalSection
GlobalSection(SolutionProperties) = preSolution
HideSolutionNode = FALSE
EndGlobalSection
GlobalSection(ExtensibilityGlobals) = postSolution
SolutionGuid = {90811697-0889-4381-80BC-C3FE8FA4931F}
EndGlobalSection
EndGlobal

34
arcs-sdk/modules/freetype/Makefile Normal file
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@@ -0,0 +1,34 @@
#
# FreeType 2 build system -- top-level Makefile
#
# Copyright (C) 1996-2024 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.
# Project names
#
PROJECT := freetype
PROJECT_TITLE := FreeType
# The variable TOP_DIR holds the path to the topmost directory in the project
# engine source hierarchy. If it is not defined, default it to `.'.
#
TOP_DIR ?= .
# The variable OBJ_DIR gives the location where object files and the
# FreeType library are built.
#
OBJ_DIR ?= $(TOP_DIR)/objs
include $(TOP_DIR)/builds/toplevel.mk
# EOF

107
arcs-sdk/modules/freetype/README Normal file
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@@ -0,0 +1,107 @@
FreeType 2.13.3
===============
Homepage: https://www.freetype.org
FreeType is a freely available software library to render fonts.
It is written in C, designed to be small, efficient, highly
customizable, and portable while capable of producing high-quality
output (glyph images) of most vector and bitmap font formats.
Please read the `docs/CHANGES` file, it contains IMPORTANT
INFORMATION.
Read the files `docs/INSTALL*` for installation instructions; see the
file `docs/LICENSE.TXT` for the available licenses.
For using FreeType's git repository instead of a distribution bundle,
please read file `README.git`. Note that you have to actually clone
the repository; using a snapshot will not work (in other words, don't
use gitlab's 'Download' button).
The FreeType 2 API reference is located in directory `docs/reference`;
use the file `index.html` as the top entry point. [Please note that
currently the search function for locally installed documentation
doesn't work due to cross-site scripting issues.]
Additional documentation is available as a separate package from our
sites. Go to
https://download.savannah.gnu.org/releases/freetype/
and download one of the following files.
freetype-doc-2.13.3.tar.xz
freetype-doc-2.13.3.tar.gz
ftdoc2133.zip
To view the documentation online, go to
https://www.freetype.org/freetype2/docs/
Mailing Lists
-------------
The preferred way of communication with the FreeType team is using
e-mail lists.
general use and discussion: freetype@nongnu.org
engine internals, porting, etc.: freetype-devel@nongnu.org
announcements: freetype-announce@nongnu.org
git repository tracker: freetype-commit@nongnu.org
The lists are moderated; see
https://www.freetype.org/contact.html
how to subscribe.
Bugs
----
Please submit bug reports at
https://gitlab.freedesktop.org/freetype/freetype/-/issues
Alternatively, you might report bugs by e-mail to
`freetype-devel@nongnu.org`. Don't forget to send a detailed
explanation of the problem -- there is nothing worse than receiving a
terse message that only says 'it doesn't work'.
Patches
-------
For larger changes please provide merge requests at
https://gitlab.freedesktop.org/freetype/freetype/-/merge_requests
Alternatively, you can send patches to the `freetype-devel@nongnu.org`
mailing list -- and thank you in advance for your work on improving
FreeType!
Details on the process can be found here:
https://www.freetype.org/developer.html#patches
Enjoy!
The FreeType Team
----------------------------------------------------------------------
Copyright (C) 2006-2024 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 README ---

102
arcs-sdk/modules/freetype/README.git Normal file
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README.git
==========
repository issues
-----------------
FreeType's official repository site is
https://gitlab.freedesktop.org/freetype ,
from which the 'freetype.git' and 'freetype-demos.git' repositories
can be cloned in the usual way.
git clone https://gitlab.freedesktop.org/freetype/freetype.git
git clone https://gitlab.freedesktop.org/freetype/freetype-demos.git
If you want to use the Savannah mirror instead, you have to do a
slightly different incantation because the repository names contain
digit '2' for historical reasons.
git clone \
https://git.savannah.nongnu.org/git/freetype/freetype2.git \
freetype
git clone \
https://git.savannah.nongnu.org/git/freetype/freetype2-demos.git \
freetype-demos
standard builds with `configure`
--------------------------------
The git repository doesn't contain pre-built configuration scripts for
UNIXish platforms. To generate them say
sh autogen.sh
which in turn depends on the following packages:
automake (1.10.1)
libtool (2.2.4)
autoconf (2.62)
The versions given in parentheses are known to work. Newer versions
should work too, of course. Note that `autogen.sh` also sets up
proper file permissions for the `configure` and auxiliary scripts.
The `autogen.sh` script checks whether the versions of the above three
tools match the numbers above. Otherwise it will complain and suggest
either upgrading or using environment variables to point to more
recent versions of the required tools.
Note that `aclocal` is provided by the 'automake' package on Linux,
and that `libtoolize` is called `glibtoolize` on Darwin (OS X).
alternative build methods
-------------------------
For static builds that don't use platform-specific optimizations, no
configure script is necessary at all; saying
make setup ansi
make
should work on all platforms that have GNU `make` (or `makepp`).
A build with `cmake` or `meson` can be done directly from the git
repository. However, if you want to use the `FT_DEBUG_LOGGING` macro
(see file `docs/DEBUG` for more information) it is currently mandatory
to execute `autogen.sh` in advance; this script clones the 'dlg' git
submodule and copies some files into FreeType's source tree.
Code of Conduct
---------------
Please note that this project is released with a Contributor Code of
Conduct (CoC). By participating in this project you agree to abide by
its terms, which you can find in the following link:
https://www.freedesktop.org/wiki/CodeOfConduct
CoC issues may be raised to the project maintainers at the following
address:
wl@gnu.org
apodtele@gmail.com
----------------------------------------------------------------------
Copyright (C) 2005-2024 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 README.git ---

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#!/bin/sh
# Copyright (C) 2005-2024 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.
run ()
{
echo "running \`$*'"
eval $*
if test $? != 0 ; then
echo "error while running \`$*'"
exit 1
fi
}
get_major_version ()
{
echo $1 | sed -e 's/\([0-9][0-9]*\)\..*/\1/g'
}
get_minor_version ()
{
echo $1 | sed -e 's/[0-9][0-9]*\.\([0-9][0-9]*\).*/\1/g'
}
get_patch_version ()
{
# tricky: some version numbers don't include a patch
# separated with a point, but something like 1.4-p6
patch=`echo $1 | sed -e 's/[0-9][0-9]*\.[0-9][0-9]*\.\([0-9][0-9]*\).*/\1/g'`
if test "$patch" = "$1"; then
patch=`echo $1 | sed -e 's/[0-9][0-9]*\.[0-9][0-9]*\-p\([0-9][0-9]*\).*/\1/g'`
# if there isn't any patch number, default to 0
if test "$patch" = "$1"; then
patch=0
fi
fi
echo $patch
}
# $1: version to check
# $2: minimum version
compare_to_minimum_version ()
{
MAJOR1=`get_major_version $1`
MAJOR2=`get_major_version $2`
if test $MAJOR1 -lt $MAJOR2; then
echo 0
return
else
if test $MAJOR1 -gt $MAJOR2; then
echo 1
return
fi
fi
MINOR1=`get_minor_version $1`
MINOR2=`get_minor_version $2`
if test $MINOR1 -lt $MINOR2; then
echo 0
return
else
if test $MINOR1 -gt $MINOR2; then
echo 1
return
fi
fi
PATCH1=`get_patch_version $1`
PATCH2=`get_patch_version $2`
if test $PATCH1 -lt $PATCH2; then
echo 0
else
echo 1
fi
}
# check the version of a given tool against a minimum version number
#
# $1: tool path
# $2: tool usual name (e.g. `aclocal')
# $3: tool variable (e.g. `ACLOCAL')
# $4: minimum version to check against
# $5: option field index used to extract the tool version from the
# output of --version
check_tool_version ()
{
field=$5
# assume the output of "[TOOL] --version" is "toolname (GNU toolname foo bar) version"
if test "$field"x = x; then
field=3 # default to 3 for all GNU autotools, after filtering enclosed string
fi
version=`$1 --version | head -1 | sed 's/([^)]*)/()/g' | cut -d ' ' -f $field`
version_check=`compare_to_minimum_version $version $4`
if test "$version_check"x = 0x; then
echo "ERROR: Your version of the \`$2' tool is too old."
echo " Minimum version $4 is required (yours is version $version)."
echo " Please upgrade or use the $3 variable to point to a more recent one."
echo ""
exit 1
fi
}
# Solaris 10's shell doesn't like the `!` operator to negate the exit status.
if test -f ./builds/unix/configure.raw; then
:
else
echo "You must be in the same directory as \`autogen.sh'."
echo "Bootstrapping doesn't work if srcdir != builddir."
exit 1
fi
# On MacOS X, the GNU libtool is named `glibtool'.
HOSTOS=`uname`
if test "$LIBTOOLIZE"x != x; then
:
elif test "$HOSTOS"x = Darwinx; then
LIBTOOLIZE=glibtoolize
else
LIBTOOLIZE=libtoolize
fi
if test "$ACLOCAL"x = x; then
ACLOCAL=aclocal
fi
if test "$AUTOCONF"x = x; then
AUTOCONF=autoconf
fi
check_tool_version $ACLOCAL aclocal ACLOCAL 1.10.1
check_tool_version $LIBTOOLIZE libtoolize LIBTOOLIZE 2.2.4
check_tool_version $AUTOCONF autoconf AUTOCONF 2.62
# This sets FREETYPE version.
eval `sed -n \
-e 's/^#define *\(FREETYPE_MAJOR\) *\([0-9][0-9]*\).*/\1=\2/p' \
-e 's/^#define *\(FREETYPE_MINOR\) *\([0-9][0-9]*\).*/\1=\2/p' \
-e 's/^#define *\(FREETYPE_PATCH\) *\([0-9][0-9]*\).*/\1=\2/p' \
include/freetype/freetype.h`
if test "$FREETYPE_PATCH" = "0"; then
FREETYPE=$FREETYPE_MAJOR.$FREETYPE_MINOR
else
FREETYPE=$FREETYPE_MAJOR.$FREETYPE_MINOR.$FREETYPE_PATCH
fi
echo "FreeType $FREETYPE:"
cd builds/unix
echo "generating \`configure.ac'"
sed -e "s;@VERSION@;$FREETYPE;" \
< configure.raw > configure.ac
run aclocal -I . --force
run $LIBTOOLIZE --force --copy --install
run autoconf --force
chmod +x install-sh
cd ../..
chmod +x ./configure
# Copy all necessary 'dlg' files.
copy_submodule_files ()
{
echo "Copying files from \`subprojects/dlg' to \`src/dlg' and \`include/dlg'"
mkdir include/dlg 2> /dev/null
cp $DLG_INC_DIR/output.h include/dlg
cp $DLG_INC_DIR/dlg.h include/dlg
cp $DLG_SRC_DIR/* src/dlg
}
if test -e ".git"; then
DLG_INC_DIR=subprojects/dlg/include/dlg
DLG_SRC_DIR=subprojects/dlg/src/dlg
if test -d "$DLG_INC_DIR"; then
:
else
echo "Checking out submodule in \`subprojects/dlg':"
git submodule update --init
fi
copy_submodule_files
fi
# EOF

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#!/bin/sh
#
# Copyright (C) 2002-2024 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.
#
#
# Call the `configure' script located in `builds/unix'.
#
rm -f config.mk builds/unix/unix-def.mk builds/unix/unix-cc.mk
# respect GNUMAKE environment variable for backward compatibility
if test "x$GNUMAKE" = x; then
if test "x$MAKE" = x; then
if test "x`make -v 2>/dev/null | sed -n -e '/GNU/p' -e '/makepp/p'`" = x; then
MAKE=gmake
else
MAKE=make
fi
fi
else
MAKE=$GNUMAKE
fi
if test "x`$MAKE -v 2>/dev/null | sed -n -e '/GNU/p' -e '/makepp/p'`" = x; then
echo "GNU make (>= 3.81) or makepp (>= 2.0) is required to build FreeType2." >&2
echo "Please try" >&2
echo >&2
echo " MAKE=<GNU make command name> $0" >&2
echo >&2
echo "or" >&2
echo >&2
echo " MAKE=\"makepp --norc-substitution\" $0" >&2
exit 1
fi
# Get `dirname' functionality. This is taken and adapted from autoconf's
# m4sh.m4 (_AS_EXPR_PREPARE, AS_DIRNAME_EXPR, and AS_DIRNAME_SED).
if expr a : '\(a\)' >/dev/null 2>&1; then
ft_expr=expr
else
ft_expr=false
fi
ft2_dir=`(dirname "$0") 2>/dev/null ||
$ft_expr X"$0" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
X"$0" : 'X\(//\)[^/]' \| \
X"$0" : 'X\(//\)$' \| \
X"$0" : 'X\(/\)' \| \
. : '\(.\)' 2>/dev/null ||
echo X"$0" |
sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
s//\1/
q
}
/^X\(\/\/\)[^/].*/{
s//\1/
q
}
/^X\(\/\/\)$/{
s//\1/
q
}
/^X\(\/\).*/{
s//\1/
q
}
s/.*/./; q'`
abs_curr_dir=`pwd`
abs_ft2_dir=`cd "$ft2_dir" && pwd`
# `--srcdir=' option can override abs_ft2_dir
if test $# -gt 0; then
for x in "$@"; do
case x"$x" in
x--srcdir=*)
abs_ft2_dir=`echo $x | sed 's/^--srcdir=//'` ;;
esac
done
fi
# build a dummy Makefile if we are not building in the source tree;
# we use inodes to avoid issues with symbolic links
inode_src=`ls -id $abs_ft2_dir | awk '{print $1}'`
inode_dst=`ls -id $abs_curr_dir | awk '{print $1}'`
if test $inode_src != $inode_dst; then
if test ! -d docs; then
mkdir docs
echo "Copying documentation assets"
cp -R $abs_ft2_dir/docs/markdown $abs_curr_dir/docs
fi
if test ! -r $abs_curr_dir/modules.cfg; then
echo "Copying \`modules.cfg'"
cp $abs_ft2_dir/modules.cfg $abs_curr_dir
fi
echo "Generating \`Makefile'"
echo "TOP_DIR := $abs_ft2_dir" > Makefile
echo "OBJ_DIR := $abs_curr_dir" >> Makefile
echo "OBJ_BUILD := \$(OBJ_DIR)" >> Makefile
echo "DOC_DIR := \$(OBJ_DIR)/docs" >> Makefile
echo "FT_LIBTOOL_DIR := \$(OBJ_DIR)" >> Makefile
echo "ifndef FT2DEMOS" >> Makefile
echo " include \$(TOP_DIR)/Makefile" >> Makefile
echo "else" >> Makefile
echo " TOP_DIR_2 := \$(TOP_DIR)/../ft2demos" >> Makefile
echo " PROJECT := freetype" >> Makefile
echo " CONFIG_MK := \$(OBJ_DIR)/config.mk" >> Makefile
echo " include \$(TOP_DIR_2)/Makefile" >> Makefile
echo "endif" >> Makefile
fi
# call make
CFG=
# work around zsh bug which doesn't like `${1+"$@"}'
case $# in
0) ;;
*) for x in "$@"; do
case x"$x" in
x--srcdir=* ) CFG="$CFG '$x'/builds/unix" ;;
*) CFG="$CFG '$x'" ;;
esac
done ;;
esac
CFG=$CFG $MAKE setup unix
# eof

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/****************************************************************************
*
* ft2build.h
*
* FreeType 2 build and setup macros (development version).
*
* Copyright (C) 1996-2024 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.
*
*/
/*
* This is a development version of <ft2build.h> to build the library in
* debug mode. Its only difference to the default version is that it
* includes a local `ftoption.h' header file with different settings for
* many configuration macros.
*
* To use it, simply ensure that the directory containing this file is
* scanned by the compiler before the default FreeType header directory.
*
*/
#ifndef FT2BUILD_H_
#define FT2BUILD_H_
#define FT_CONFIG_MODULES_H <ftmodule.h>
#define FT_CONFIG_OPTIONS_H <ftoption.h>
#include <freetype/config/ftheader.h>
#endif /* FT2BUILD_H_ */
/* END */

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# Static site folder
reference/
# HTML and Markdown files
*.html
*.md
# MkDocs Config file
mkdocs.yml
# Python virtualenv
env/

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Support for a cmake build has been contributed. See the remarks in the
top-level `CMakeLists.txt' file for more.

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How to customize the compilation of the library
===============================================
FreeType is highly customizable to fit various needs, and this
document describes how it is possible to select options and
components at compilation time.
I. Configuration macros
The file `include/freetype/config/ftoption.h' contains a list of
commented configuration macros that can be toggled by developers to
indicate which features should be active while building the library.
These options range from debug level to availability of certain
features, like native TrueType hinting through a bytecode
interpreter.
We invite you to read this file for more information. You can
change the file's content to suit your needs, or override it with
one of the techniques described below.
II. Modules list
If you use GNU make please edit the top-level file `modules.cfg'.
It contains a list of available FreeType modules and extensions to
be compiled. Change it to suit your own preferences. Be aware that
certain modules depend on others, as described in the file. GNU
make uses `modules.cfg' to generate `ftmodule.h' (in the object
directory).
If you build FreeType in a directory separate from the source files,
put your customized `modules.cfg' in that directory; that way you
can keep the source files `clean'.
If you don't use GNU make you have to manually edit the file
`include/freetype/config/ftmodule.h' (which is *not* used with if
compiled with GNU make) to add or remove the drivers and components
you want to compile into the library. See `INSTALL.ANY' for more
information.
III. System interface
FreeType's default interface to the system (i.e., the parts that
deal with memory management and i/o streams) is located in
`src/base/ftsystem.c'.
The current implementation uses standard C library calls to manage
memory and to read font files. It is however possible to write
custom implementations to suit specific systems.
To tell the GNU Make-based build system to use a custom system
interface, you have to define the environment variable FTSYS_SRC to
point to the relevant implementation:
on Unix:
./configure <your options>
export FTSYS_SRC=foo/my_ftsystem.c
make
make install
on Windows:
make setup <compiler>
set FTSYS_SRC=foo/my_ftsystem.c
make
IV. Overriding default configuration and module headers
It is possible to override the default configuration and module
headers without changing the original files. There are three ways
to do that:
1. With GNU make
[This is actually a combination of method 2 and 3.]
Just put your custom `ftoption.h' file into the objects directory
(normally `<topdir>/objs' if you build in the source tree, or the
directory where you invoke configure if you build in a separate
directory), which GNU make prefers over the standard location. No
action is needed for `ftmodule.h' because it is generated
automatically in the objects directory.
2. Using the C include path
Use the C include path to ensure that your own versions of the
files are used at compile time when the lines
#include FT_CONFIG_OPTIONS_H
#include FT_CONFIG_MODULES_H
are compiled. Their default values being
<freetype/config/ftoption.h> and <freetype/config/ftmodule.h>, you
can do something like:
custom/
config/
ftoption.h => custom options header
ftmodule.h => custom modules list
include/ => normal FreeType 2 include
...
then change the C include path to always give the path to `custom'
before the FreeType 2 `include'.
3. Redefining FT_CONFIG_OPTIONS_H and FT_CONFIG_MODULES_H
Another way to do the same thing is to redefine the macros used to
name the configuration headers. To do so, you need a custom
`ft2build.h' whose content can be as simple as:
#ifndef FT2_BUILD_MY_PLATFORM_H_
#define FT2_BUILD_MY_PLATFORM_H_
#define FT_CONFIG_OPTIONS_H <custom/my-ftoption.h>
#define FT_CONFIG_MODULES_H <custom/my-ftmodule.h>
#include <freetype/config/ftheader.h>
#endif /* FT2_BUILD_MY_PLATFORM_H_ */
Place those files in a separate directory, e.g.,
custom/
ft2build.h => custom version described above
my-ftoption.h => custom options header
my-ftmodule.h => custom modules list header
and change the C include path to ensure that `custom' is always
placed before the FT2 `include' during compilation.
----------------------------------------------------------------------
Copyright (C) 2003-2024 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 CUSTOMIZE ---

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Debugging within the FreeType sources
=====================================
I. Configuration macros
-----------------------
There are several ways to enable debugging features in a FreeType 2
builds. This is controlled through the definition of special macros
located in the file `ftoption.h'. The macros are:
FT_DEBUG_LEVEL_ERROR
#define this macro if you want to compile the `FT_ERROR' macro
calls to print error messages during program execution. This does
not stop the program. Very useful to spot invalid fonts during
development and to code workarounds for them.
FT_DEBUG_LEVEL_TRACE
#define this macro if you want to compile both macros `FT_ERROR'
and `FT_TRACE'. This also includes the variants `FT_TRACE0',
`FT_TRACE1', `FT_TRACE2', ..., `FT_TRACE7'.
The trace macros are used to send debugging messages when an
appropriate `debug level' is configured at runtime through the
`FT2_DEBUG' environment variable (more on this later).
FT_DEBUG_MEMORY
If this macro is #defined, the FreeType engine is linked with a
small but effective debugging memory manager that tracks all
allocations and frees that are performed within the font engine.
When the `FT2_DEBUG_MEMORY' environment variable is defined at
runtime, a call to `FT_Done_FreeType' dumps memory statistics,
including the list of leaked memory blocks and optionally with the
source locations where these were allocated. It is always a very
good idea to define this in development builds. This works with
_any_ program linked to FreeType, but requires a big deal of
memory (the debugging memory manager never frees the blocks to the
heap in order to detect double frees).
When `FT2_DEBUG_MEMORY' isn't defined at runtime, the debugging
memory manager is ignored, and performance is unaffected.
FT_DEBUG_LOGGING
#define this macro for enhanced logging support; it automatically
sets `FT_DEBUG_LEVEL_TRACE' and `FT_DEBUG_LEVEL_ERROR'.
If defined, `FT_TRACE' and `FT_ERROR' can send tracing and
debugging messages to a file. The location of the log file has to
be set with the `FT_LOGGING_FILE' environment variable (more on
this later).
The main enhancements are the possibility of logging the time and
the name of the `FT_COMPONENT' macro together with the affected
`FT_TRACE' or `FT_ERROR' calls. See below how to activate this in
the `FT2_DEBUG' environment variable.
II. Debugging macros
--------------------
Several macros can be used within the FreeType sources to help
debugging its code:
1. FT_ERROR(( ... ))
This macro is used to send debug messages that indicate relatively
serious errors (like broken font files) without stopping the
execution of the running program. Its code is compiled only when
either `FT_DEBUG_LEVEL_ERROR' or `FT_DEBUG_LEVEL_TRACE' are
defined in `ftoption.h'.
Note that you have to use a printf-like signature, but with double
parentheses, like in
FT_ERROR(( "your %s is not %s\n", "foo", "bar" ));
2. FT_ASSERT( condition )
This macro is used to check strong assertions at runtime. If its
condition isn't TRUE, the program aborts with a panic message.
Its code is compiled when either `FT_DEBUG_LEVEL_ERROR' or
`FT_DEBUG_LEVEL_TRACE' are defined. You don't need double
parentheses here. Example:
FT_ASSERT( ptr != NULL );
3. FT_TRACE( level, (message...) )
The `FT_TRACE' macro is used to send general-purpose debugging
messages during program execution. This macro uses an *implicit*
macro named `FT_COMPONENT', which names the current FreeType
component being run.
The developer should always define `FT_COMPONENT' as appropriate,
for example as in
#undef FT_COMPONENT
#define FT_COMPONENT io
The value of the `FT_COMPONENT' macro is one of the component
names defined in the internal file `internal/fttrace.h'. If you
modify the FreeType source code and insert a new `FT_COMPONENT'
macro, you must register it in `fttrace.h'. If you insert or
remove many trace macros, you can test for undefined or unused
trace macros with the script `src/tools/chktrcmp.py'.
Each such component is assigned a `debug level', ranging from
value 0 to 7, through the use of the `FT2_DEBUG' environment
variable (described below) when a program linked with FreeType
starts.
When `FT_TRACE' is called, its level is compared to the one of the
corresponding component. Messages with trace levels *higher* than
the corresponding component level are filtered out and never
printed. This means that trace messages with level 0 are always
printed, those with level 2 are only printed when the component
level is *at least* 2, etc.
The second parameter to `FT_TRACE' must contain parentheses and
corresponds to a printf-like call, as in
FT_TRACE( 2, ( "your %s is not %s\n", "foo", "bar" ) )
The shortcut macros `FT_TRACE0', `FT_TRACE1', `FT_TRACE2', ...,
`FT_TRACE7' can be used with constant level indices, and are much
cleaner to use, as in
FT_TRACE2(( "your %s is not %s\n", "foo", "bar" ));
III. Environment variables
--------------------------
The following environment variables control debugging output and
behaviour of FreeType at runtime.
FT2_DEBUG
This variable is only used when FreeType is built with
`FT_DEBUG_LEVEL_TRACE' defined. It contains a list of component
level definitions, following this format:
component1:level1 component2:level2 component3:level3 ...
where `componentX' is the name of a tracing component, as defined
in `fttrace.h'. `levelX' is the corresponding level to use at
runtime.
`any' is a special component name that is interpreted as `any/all
components'. For example, the following definitions
set FT2_DEBUG=any:2 memory:5 io:4 (on Windows)
export FT2_DEBUG="any:2 memory:5 io:4" (on Linux with bash)
both stipulate that all components should have level 2, except for
the memory and io components, which are set to the trace levels 5
and 4, respectively.
If `FT_DEBUG_LOGGING' is defined, two more options are available.
* -v: Print also the name of FreeType's component from which the
current log is produced, together with the tracing level.
* -t: Print also the time.
Here are some examples how the output might look like.
FT2_DEBUG="any:7 memory:5 -vt"
=> [20:32:02:44969 ttload:2] table directory loaded
FT2_DEBUG="any:7 memory:5 -t"
=> [20:32:02:44969] table directory loaded
FT2_DEBUG="any:7 memory:5 -v"
=> [ttload:2] table directory loaded
FT_LOGGING_FILE
This variable is only used if FreeType is built with the
`FT_DEBUG_LOGGING' macro defined. It contains the path to the
file where the user wants to put his log file. If it is not set,
FreeType uses stderr.
Examples:
On UNIX-like systems with bash:
export FT_LOGGING_FILE="/tmp/freetype2.log"
On Windows:
set FT_LOGGING_FILE=C:\Users\AppData\Local\Temp\freetype2.log
FT2_DEBUG_MEMORY
This environment variable, when defined, tells FreeType to use a
debugging memory manager that tracks leaking memory blocks as well
as other common errors like double frees. It is also capable of
reporting _where_ the leaking blocks were allocated, which
considerably saves time when debugging new additions to the
library.
This code is only compiled when FreeType is built with the
`FT_DEBUG_MEMORY' macro #defined in `ftoption.h' though, it is
ignored in other builds.
FT2_ALLOC_TOTAL_MAX
This variable is ignored if `FT2_DEBUG_MEMORY' is not defined. It
allows you to specify a maximum heap size for all memory
allocations performed by FreeType. This is very useful to test
the robustness of the font engine and programs that use it in
tight memory conditions.
If it is undefined, or if its value is not strictly positive, no
allocation bounds are checked at runtime.
FT2_ALLOC_COUNT_MAX
This variable is ignored if `FT2_DEBUG_MEMORY' is not defined. It
allows you to specify a maximum number of memory allocations
performed by FreeType before returning the error
`FT_Err_Out_Of_Memory'. This is useful for debugging and testing
the engine's robustness.
If it is undefined, or if its value is not strictly positive, no
allocation bounds are checked at runtime.
FT2_KEEP_ALIVE
This variable is ignored if `FT2_DEBUG_MEMORY' is not defined.
`Keep alive' means that freed blocks aren't released to the heap.
This is useful to detect double-frees or weird heap corruption,
reporting the source code location of the original allocation and
deallocation in case of a problem. It uses large amounts of
memory, however.
If it is undefined, or if its value is not strictly positive,
freed blocks are released at runtime.
IV. Additional Capabilities with `FT_DEBUG_LOGGING'
---------------------------------------------------
If `FT_DEBUG_LOGGING' is defined, four APIs are available to provide
additional debugging support. Use
#include <freetype/ftlogging.h>
to access them.
FT_Trace_Set_Level( const char* level )
By default, FreeType uses the tracing levels set in the
`FT2_DEBUG' environment variable. Use this function to override
the value with `level'. Use value `NULL' to disable tracing.
FT_Trace_Set_Default_Level( void )
Reset the tracing levels to the default value, i.e., the value of
the `FT2_DEBUG' environment variable or no tracing if not set.
FT_Set_Log_Handler( ft_custom_log_handler handler )
Use `handler' as a custom handler for formatting tracing and error
messages. The `ft_custom_log_handler' typedef has the following
prototype.
void
(*ft_custom_log_handler)( const char* ft_component,
const char* fmt,
va_list args );
`ft_component' is the current component like `ttload', `fmt' is the
first argument of `FT_TRACE' or `FT_ERROR', and `args' holds the
remaining arguments.
FT_Set_Default_Log_Handler( void )
Reset the log handler to the default version.
------------------------------------------------------------------------
Copyright (C) 2002-2024 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 DEBUG ---

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Introduction
------------
Documentation is an extremely important part of any project, and it
helps a lot if it uses consistent syntax and layout.
The documentation for the FreeType library is maintained in header
files in the `include/` directory in the form of code comments. These
comments are extracted and organized by 'docwriter' (previously
'docmaker'). The generated docs can be viewed in the
`docs/reference/site/` directory after running `make refdoc`.
Documentation comments follow a specific structure and format as
described below.
Documentation Structure
-----------------------
The documentation is divided into multiple chapters, which contain
sections relevant to it. The chapter details and sections contained
in them are listed in `include/freetype/ftchapters.h`. Any unlisted
section is added to the 'Miscellaneous' chapter.
Sections may contain sub-sections which consist of properties,
enumerations, and other data types.
Comment Blocks
--------------
Documentation blocks follow a specific format:
/***************************** (should end on column 77)
*
* (1 asterisk, 1 space, then content)
*
*/ (end of block)
To make 'docwriter' recognize a comment block, there must be at least
two asterisks in the first line. As a consequence, you should change
the second asterisk to something else if you want to prevent a comment
block being handled by 'docwriter' (for example, change `/****/` to
`/*#**/`).
Markup Tags
-----------
Markup tags are used to indicate what comes next. The syntax for a
tag is:
@foo:
An `@`, followed by the tag, and then `:`.
Reserved Tags
-------------
There are some keywords that have a special meaning to docwriter.
As a convention, all keywords are written in lowercase.
* `chapter`: Defines a chapter. Usually the title with underscores.
* `sections`: List of sections in the chapter, in order.
* `section`: Defines the start or continuation of a section.
* `title`: Title for a chapter or section. May contain spaces.
* `abstract`: The abstract for a section, visible in the Table of
Contents (TOC).
* `description`: Detailed description of a tag (except chapters),
shown as synopsis.
* `values`: A list of 'values' for the tag. These values are used for
cross-referencing.
Other Tags
----------
Except the ones given above, any other tags will be added as a part of
a subsection. All tags are lowercase by convention.
Public Header Definitions
-------------------------
The public headers for FreeType have their names defined in
`include/freetype/config/ftheader.h`. Any new public header file must
be defined in this file, in the following format:
#define FT_NEWNAME_H <freetype/newname.h>
Where `newname` is the name of the header file.
This macro is combined with the file location of a sub-section and
printed with the object.
Note on code blocks captured after comments
-------------------------------------------
All non-documentation lines after a documentation comment block are
captured to be displayed as the code for the sub-section. To stop
collection, a line with `/* */` should be added.
General Formatting Conventions
------------------------------
* Use two spaces after a full stop ending a sentence.
* Use appropriate uppercasing in titles. Refer
https://english.stackexchange.com/a/34
for more information.
* Do not add trailing parentheses when citing a C function.
Markdown Usage
--------------
All tags, except the ones that define the name and title for a block
support markdown in them. Docwriter uses a markdown parser that
follows rules given in John Gruber's markdown guide:
https://daringfireball.net/projects/markdown/syntax
with a few exceptions and extensions, detailed below. This may also
be referred to as the **FreeType Flavored Markdown**.
Headers
-------
Markdown headers should not be used directly, because these are added
based on section titles, sub-section names, and tags. However, if a
header needs to be added, note the following correspondence to HTML tags:
* Section title on top of the page is `H1`.
* Sub-section titles are `H2`.
* Parts of sub-sections are `H4`.
* Any header added will be visible in the Table of Contents (TOC) of
the page.
Emphasis
--------
* Use `_underscores_` for italics.
* Use `**double asterisks**` for bold.
Although the other notations (double underscore for bold, single
asterisk for italics) are supported, it is recommended to use the
above for consistency.
Note that there may be cases where having two asterisks or underscores
in a line may lead to text being picked up as italics or bold.
Although unintentional, this is correct markdown behavior.
For inline code, wrap the sequence with backticks (see below). This
renders symbols correctly without modifications. If a symbol is
absolutely required outside of an inline code block or code sequence,
escape it with a backslash (like `\*` or `\_`).
Lists
-----
Unordered lists can be created with asterisks:
* Unordered list items can use asterisks.
* Another list item.
Ordered lists start with numbers:
1. This is an ordered list item.
2. Brackets after numbers won't work.
To continue a list over multiple paragraphs, indent them with at least
four spaces. For example:
1. Lorem ipsum dolor sit amet, consectetuer adipiscing elit.
Aliquam hendrerit mi posuere lectus. Vestibulum enim wisi,
viverra nec, fringilla in, laoreet vitae, risus.
Donec sit amet nisl. Aliquam semper ipsum sit amet velit.
Suspendisse id sem consectetuer libero luctus adipiscing.
2. This is the second list item.
This paragraph is not a part of the list.
More information on lists in markdown is available at
https://daringfireball.net/projects/markdown/syntax#list
Cross-references
----------------
Other sub-sections can be linked with the `@` symbol:
@description:
While FreeType's CFF driver doesn't expose API functions by
itself, it is possible to control its behaviour with
@FT_Property_Set and @FT_Property_Get.
If a field in the `values` table of another sub-section is linked, the
link leads to its parent sub-section.
Links and Images
----------------
All URLs are converted to links in the HTML documentation.
Markdown syntax for links and images are fully supported.
Inline Code
-----------
To indicate a span of code, wrap it with backtick quotes (`` ` ``):
Use the `printf()` function.
Cross-references, markdown, and html styling do not work in inline code
sequences.
Code and Syntax Highlighting
----------------------------
Blocks of code are fenced by lines with three back-ticks `` ``` ``
followed by the language name, if any (used for syntax highlighting),
as demonstrated in the following example.
```c
x = y + z;
if ( zookoo == 2 )
{
foobar();
}
```
Note that the indentation of the opening line and the closing line
must be exactly the same. The code sequence itself should have a
larger indentation than the surrounding back-ticks.
Like inline code, markdown and html styling is *not* supported inside
code blocks.
Tables
------
Tables are used to list values, input, and other fields. The FreeType
Flavored Markdown adopts a simple approach to tables with two columns,
or field definition tables.
Field definition names may contain alphanumeric, underscore, and the
`.` characters. This is followed by `::`. The following lines are
the second column of the table. A field definition ends with the
start of another field definition, or a markup tag.
@Input:
pathname ::
A path to the font file.
face_index ::
See @FT_Open_Face for a detailed description of this
parameter.
Non-breaking Space
------------------
A tilde can be used to create a non-breaking space. The example
The encoding value~0 is reserved.
is converted to
The encoding value&nbsp;0 is reserved.
----------------------------------------------------------------------
Copyright (C) 2018-2024 by
Nikhil Ramakrishnan, 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 DOCGUIDE ---

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The FreeType Project LICENSE
----------------------------
2006-Jan-27
Copyright 1996-2002, 2006 by
David Turner, Robert Wilhelm, and Werner Lemberg
Introduction
============
The FreeType Project is distributed in several archive packages;
some of them may contain, in addition to the FreeType font engine,
various tools and contributions which rely on, or relate to, the
FreeType Project.
This license applies to all files found in such packages, and
which do not fall under their own explicit license. The license
affects thus the FreeType font engine, the test programs,
documentation and makefiles, at the very least.
This license was inspired by the BSD, Artistic, and IJG
(Independent JPEG Group) licenses, which all encourage inclusion
and use of free software in commercial and freeware products
alike. As a consequence, its main points are that:
o We don't promise that this software works. However, we will be
interested in any kind of bug reports. (`as is' distribution)
o You can use this software for whatever you want, in parts or
full form, without having to pay us. (`royalty-free' usage)
o You may not pretend that you wrote this software. If you use
it, or only parts of it, in a program, you must acknowledge
somewhere in your documentation that you have used the
FreeType code. (`credits')
We specifically permit and encourage the inclusion of this
software, with or without modifications, in commercial products.
We disclaim all warranties covering The FreeType Project and
assume no liability related to The FreeType Project.
Finally, many people asked us for a preferred form for a
credit/disclaimer to use in compliance with this license. We thus
encourage you to use the following text:
"""
Portions of this software are copyright © <year> The FreeType
Project (www.freetype.org). All rights reserved.
"""
Please replace <year> with the value from the FreeType version you
actually use.
Legal Terms
===========
0. Definitions
--------------
Throughout this license, the terms `package', `FreeType Project',
and `FreeType archive' refer to the set of files originally
distributed by the authors (David Turner, Robert Wilhelm, and
Werner Lemberg) as the `FreeType Project', be they named as alpha,
beta or final release.
`You' refers to the licensee, or person using the project, where
`using' is a generic term including compiling the project's source
code as well as linking it to form a `program' or `executable'.
This program is referred to as `a program using the FreeType
engine'.
This license applies to all files distributed in the original
FreeType Project, including all source code, binaries and
documentation, unless otherwise stated in the file in its
original, unmodified form as distributed in the original archive.
If you are unsure whether or not a particular file is covered by
this license, you must contact us to verify this.
The FreeType Project is copyright (C) 1996-2000 by David Turner,
Robert Wilhelm, and Werner Lemberg. All rights reserved except as
specified below.
1. No Warranty
--------------
THE FREETYPE PROJECT IS PROVIDED `AS IS' WITHOUT WARRANTY OF ANY
KIND, EITHER EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
PURPOSE. IN NO EVENT WILL ANY OF THE AUTHORS OR COPYRIGHT HOLDERS
BE LIABLE FOR ANY DAMAGES CAUSED BY THE USE OR THE INABILITY TO
USE, OF THE FREETYPE PROJECT.
2. Redistribution
-----------------
This license grants a worldwide, royalty-free, perpetual and
irrevocable right and license to use, execute, perform, compile,
display, copy, create derivative works of, distribute and
sublicense the FreeType Project (in both source and object code
forms) and derivative works thereof for any purpose; and to
authorize others to exercise some or all of the rights granted
herein, subject to the following conditions:
o Redistribution of source code must retain this license file
(`FTL.TXT') unaltered; any additions, deletions or changes to
the original files must be clearly indicated in accompanying
documentation. The copyright notices of the unaltered,
original files must be preserved in all copies of source
files.
o Redistribution in binary form must provide a disclaimer that
states that the software is based in part of the work of the
FreeType Team, in the distribution documentation. We also
encourage you to put an URL to the FreeType web page in your
documentation, though this isn't mandatory.
These conditions apply to any software derived from or based on
the FreeType Project, not just the unmodified files. If you use
our work, you must acknowledge us. However, no fee need be paid
to us.
3. Advertising
--------------
Neither the FreeType authors and contributors nor you shall use
the name of the other for commercial, advertising, or promotional
purposes without specific prior written permission.
We suggest, but do not require, that you use one or more of the
following phrases to refer to this software in your documentation
or advertising materials: `FreeType Project', `FreeType Engine',
`FreeType library', or `FreeType Distribution'.
As you have not signed this license, you are not required to
accept it. However, as the FreeType Project is copyrighted
material, only this license, or another one contracted with the
authors, grants you the right to use, distribute, and modify it.
Therefore, by using, distributing, or modifying the FreeType
Project, you indicate that you understand and accept all the terms
of this license.
4. Contacts
-----------
There are two mailing lists related to FreeType:
o freetype@nongnu.org
Discusses general use and applications of FreeType, as well as
future and wanted additions to the library and distribution.
If you are looking for support, start in this list if you
haven't found anything to help you in the documentation.
o freetype-devel@nongnu.org
Discusses bugs, as well as engine internals, design issues,
specific licenses, porting, etc.
Our home page can be found at
https://www.freetype.org
--- end of FTL.TXT ---

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GNU GENERAL PUBLIC LICENSE
Version 2, June 1991
Copyright (C) 1989, 1991 Free Software Foundation, Inc.
51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Everyone is permitted to copy and distribute verbatim copies
of this license document, but changing it is not allowed.
Preamble
The licenses for most software are designed to take away your
freedom to share and change it. By contrast, the GNU General Public
License is intended to guarantee your freedom to share and change free
software--to make sure the software is free for all its users. This
General Public License applies to most of the Free Software
Foundation's software and to any other program whose authors commit to
using it. (Some other Free Software Foundation software is covered by
the GNU Library General Public License instead.) You can apply it to
your programs, too.
When we speak of free software, we are referring to freedom, not
price. Our General Public Licenses are designed to make sure that you
have the freedom to distribute copies of free software (and charge for
this service if you wish), that you receive source code or can get it
if you want it, that you can change the software or use pieces of it
in new free programs; and that you know you can do these things.
To protect your rights, we need to make restrictions that forbid
anyone to deny you these rights or to ask you to surrender the rights.
These restrictions translate to certain responsibilities for you if you
distribute copies of the software, or if you modify it.
For example, if you distribute copies of such a program, whether
gratis or for a fee, you must give the recipients all the rights that
you have. You must make sure that they, too, receive or can get the
source code. And you must show them these terms so they know their
rights.
We protect your rights with two steps: (1) copyright the software, and
(2) offer you this license which gives you legal permission to copy,
distribute and/or modify the software.
Also, for each author's protection and ours, we want to make certain
that everyone understands that there is no warranty for this free
software. If the software is modified by someone else and passed on, we
want its recipients to know that what they have is not the original, so
that any problems introduced by others will not reflect on the original
authors' reputations.
Finally, any free program is threatened constantly by software
patents. We wish to avoid the danger that redistributors of a free
program will individually obtain patent licenses, in effect making the
program proprietary. To prevent this, we have made it clear that any
patent must be licensed for everyone's free use or not licensed at all.
The precise terms and conditions for copying, distribution and
modification follow.
GNU GENERAL PUBLIC LICENSE
TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
0. This License applies to any program or other work which contains
a notice placed by the copyright holder saying it may be distributed
under the terms of this General Public License. The "Program", below,
refers to any such program or work, and a "work based on the Program"
means either the Program or any derivative work under copyright law:
that is to say, a work containing the Program or a portion of it,
either verbatim or with modifications and/or translated into another
language. (Hereinafter, translation is included without limitation in
the term "modification".) Each licensee is addressed as "you".
Activities other than copying, distribution and modification are not
covered by this License; they are outside its scope. The act of
running the Program is not restricted, and the output from the Program
is covered only if its contents constitute a work based on the
Program (independent of having been made by running the Program).
Whether that is true depends on what the Program does.
1. You may copy and distribute verbatim copies of the Program's
source code as you receive it, in any medium, provided that you
conspicuously and appropriately publish on each copy an appropriate
copyright notice and disclaimer of warranty; keep intact all the
notices that refer to this License and to the absence of any warranty;
and give any other recipients of the Program a copy of this License
along with the Program.
You may charge a fee for the physical act of transferring a copy, and
you may at your option offer warranty protection in exchange for a fee.
2. You may modify your copy or copies of the Program or any portion
of it, thus forming a work based on the Program, and copy and
distribute such modifications or work under the terms of Section 1
above, provided that you also meet all of these conditions:
a) You must cause the modified files to carry prominent notices
stating that you changed the files and the date of any change.
b) You must cause any work that you distribute or publish, that in
whole or in part contains or is derived from the Program or any
part thereof, to be licensed as a whole at no charge to all third
parties under the terms of this License.
c) If the modified program normally reads commands interactively
when run, you must cause it, when started running for such
interactive use in the most ordinary way, to print or display an
announcement including an appropriate copyright notice and a
notice that there is no warranty (or else, saying that you provide
a warranty) and that users may redistribute the program under
these conditions, and telling the user how to view a copy of this
License. (Exception: if the Program itself is interactive but
does not normally print such an announcement, your work based on
the Program is not required to print an announcement.)
These requirements apply to the modified work as a whole. If
identifiable sections of that work are not derived from the Program,
and can be reasonably considered independent and separate works in
themselves, then this License, and its terms, do not apply to those
sections when you distribute them as separate works. But when you
distribute the same sections as part of a whole which is a work based
on the Program, the distribution of the whole must be on the terms of
this License, whose permissions for other licensees extend to the
entire whole, and thus to each and every part regardless of who wrote it.
Thus, it is not the intent of this section to claim rights or contest
your rights to work written entirely by you; rather, the intent is to
exercise the right to control the distribution of derivative or
collective works based on the Program.
In addition, mere aggregation of another work not based on the Program
with the Program (or with a work based on the Program) on a volume of
a storage or distribution medium does not bring the other work under
the scope of this License.
3. You may copy and distribute the Program (or a work based on it,
under Section 2) in object code or executable form under the terms of
Sections 1 and 2 above provided that you also do one of the following:
a) Accompany it with the complete corresponding machine-readable
source code, which must be distributed under the terms of Sections
1 and 2 above on a medium customarily used for software interchange; or,
b) Accompany it with a written offer, valid for at least three
years, to give any third party, for a charge no more than your
cost of physically performing source distribution, a complete
machine-readable copy of the corresponding source code, to be
distributed under the terms of Sections 1 and 2 above on a medium
customarily used for software interchange; or,
c) Accompany it with the information you received as to the offer
to distribute corresponding source code. (This alternative is
allowed only for noncommercial distribution and only if you
received the program in object code or executable form with such
an offer, in accord with Subsection b above.)
The source code for a work means the preferred form of the work for
making modifications to it. For an executable work, complete source
code means all the source code for all modules it contains, plus any
associated interface definition files, plus the scripts used to
control compilation and installation of the executable. However, as a
special exception, the source code distributed need not include
anything that is normally distributed (in either source or binary
form) with the major components (compiler, kernel, and so on) of the
operating system on which the executable runs, unless that component
itself accompanies the executable.
If distribution of executable or object code is made by offering
access to copy from a designated place, then offering equivalent
access to copy the source code from the same place counts as
distribution of the source code, even though third parties are not
compelled to copy the source along with the object code.
4. You may not copy, modify, sublicense, or distribute the Program
except as expressly provided under this License. Any attempt
otherwise to copy, modify, sublicense or distribute the Program is
void, and will automatically terminate your rights under this License.
However, parties who have received copies, or rights, from you under
this License will not have their licenses terminated so long as such
parties remain in full compliance.
5. You are not required to accept this License, since you have not
signed it. However, nothing else grants you permission to modify or
distribute the Program or its derivative works. These actions are
prohibited by law if you do not accept this License. Therefore, by
modifying or distributing the Program (or any work based on the
Program), you indicate your acceptance of this License to do so, and
all its terms and conditions for copying, distributing or modifying
the Program or works based on it.
6. Each time you redistribute the Program (or any work based on the
Program), the recipient automatically receives a license from the
original licensor to copy, distribute or modify the Program subject to
these terms and conditions. You may not impose any further
restrictions on the recipients' exercise of the rights granted herein.
You are not responsible for enforcing compliance by third parties to
this License.
7. If, as a consequence of a court judgment or allegation of patent
infringement or for any other reason (not limited to patent issues),
conditions are imposed on you (whether by court order, agreement or
otherwise) that contradict the conditions of this License, they do not
excuse you from the conditions of this License. If you cannot
distribute so as to satisfy simultaneously your obligations under this
License and any other pertinent obligations, then as a consequence you
may not distribute the Program at all. For example, if a patent
license would not permit royalty-free redistribution of the Program by
all those who receive copies directly or indirectly through you, then
the only way you could satisfy both it and this License would be to
refrain entirely from distribution of the Program.
If any portion of this section is held invalid or unenforceable under
any particular circumstance, the balance of the section is intended to
apply and the section as a whole is intended to apply in other
circumstances.
It is not the purpose of this section to induce you to infringe any
patents or other property right claims or to contest validity of any
such claims; this section has the sole purpose of protecting the
integrity of the free software distribution system, which is
implemented by public license practices. Many people have made
generous contributions to the wide range of software distributed
through that system in reliance on consistent application of that
system; it is up to the author/donor to decide if he or she is willing
to distribute software through any other system and a licensee cannot
impose that choice.
This section is intended to make thoroughly clear what is believed to
be a consequence of the rest of this License.
8. If the distribution and/or use of the Program is restricted in
certain countries either by patents or by copyrighted interfaces, the
original copyright holder who places the Program under this License
may add an explicit geographical distribution limitation excluding
those countries, so that distribution is permitted only in or among
countries not thus excluded. In such case, this License incorporates
the limitation as if written in the body of this License.
9. The Free Software Foundation may publish revised and/or new versions
of the General Public License from time to time. Such new versions will
be similar in spirit to the present version, but may differ in detail to
address new problems or concerns.
Each version is given a distinguishing version number. If the Program
specifies a version number of this License which applies to it and "any
later version", you have the option of following the terms and conditions
either of that version or of any later version published by the Free
Software Foundation. If the Program does not specify a version number of
this License, you may choose any version ever published by the Free Software
Foundation.
10. If you wish to incorporate parts of the Program into other free
programs whose distribution conditions are different, write to the author
to ask for permission. For software which is copyrighted by the Free
Software Foundation, write to the Free Software Foundation; we sometimes
make exceptions for this. Our decision will be guided by the two goals
of preserving the free status of all derivatives of our free software and
of promoting the sharing and reuse of software generally.
NO WARRANTY
11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN
OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS
TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE
PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
REPAIR OR CORRECTION.
12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
POSSIBILITY OF SUCH DAMAGES.
END OF TERMS AND CONDITIONS
How to Apply These Terms to Your New Programs
If you develop a new program, and you want it to be of the greatest
possible use to the public, the best way to achieve this is to make it
free software which everyone can redistribute and change under these terms.
To do so, attach the following notices to the program. It is safest
to attach them to the start of each source file to most effectively
convey the exclusion of warranty; and each file should have at least
the "copyright" line and a pointer to where the full notice is found.
<one line to give the program's name and a brief idea of what it does.>
Copyright (C) <year> <name of author>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Also add information on how to contact you by electronic and paper mail.
If the program is interactive, make it output a short notice like this
when it starts in an interactive mode:
Gnomovision version 69, Copyright (C) year name of author
Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
This is free software, and you are welcome to redistribute it
under certain conditions; type `show c' for details.
The hypothetical commands `show w' and `show c' should show the appropriate
parts of the General Public License. Of course, the commands you use may
be called something other than `show w' and `show c'; they could even be
mouse-clicks or menu items--whatever suits your program.
You should also get your employer (if you work as a programmer) or your
school, if any, to sign a "copyright disclaimer" for the program, if
necessary. Here is a sample; alter the names:
Yoyodyne, Inc., hereby disclaims all copyright interest in the program
`Gnomovision' (which makes passes at compilers) written by James Hacker.
<signature of Ty Coon>, 1 April 1989
Ty Coon, President of Vice
This General Public License does not permit incorporating your program into
proprietary programs. If your program is a subroutine library, you may
consider it more useful to permit linking proprietary applications with the
library. If this is what you want to do, use the GNU Library General
Public License instead of this License.

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There are several ways to build the FreeType library, depending on
your system and the level of customization you need. Here is a short
overview of the documentation available:
I. Prerequisites and dependencies
=================================
FreeType is a low level C library that only depends on the standard
C library with very few platform-dependent optimizations utilized at
build time. Any C99-compliant compiler should be able to compile
FreeType. System libraries, such as zlib, Gzip, bzip2, Brotli,
and libpng, might be used to handle compressed fonts or decode
embedded PNG glyphs.
FreeType auto-configuration scripts should be able to detect the
prerequisites if the necessary headers are available at the default
locations. Otherwise, modify `include/freetype/config/ftoption.h`
to control how the FreeType library gets built. Normally, you don't
need to change anything.
Applications have very limited control over FreeType's behaviour at
run-time; look at the documentation of function `FT_Property_Set`.
II. Normal installation and upgrades
====================================
1. Unix and Unix-like systems
This also includes MacOS, Cygwin, MinGW + MSYS, Mingw-w64 + MSYS2,
and possibly other, similar environments.
Please read `INSTALL.UNIX` to install or upgrade FreeType 2 on a
Unix system. Note that you *need* GNU Make for automatic
compilation, since other make tools won't work (this includes BSD
Make).
GNU Make VERSION 3.81 OR NEWER IS NEEDED!
2. Other systems using GNU Make
On some non-Unix platforms, it is possible to build the library
using only the GNU Make utility. Note that *NO OTHER MAKE TOOL
WILL WORK*[1]! This methods supports several compilers on
Windows, OS/2, and BeOS, including MinGW* (without MSYS*), Visual
C++, Borland C++, and more.
Instructions are provided in the file `INSTALL.GNU`.
3. Other build tools and platforms.
A few other tools can be used to build FreeType. You can find
the corresponding instruction files in the FreeType root folder
or the builds/ sub-folder.
CMake :: see `CMakeLists.txt` for more information
Meson :: see `meson.build` for more information
MSBuild :: see `MSBuild.sln` for more information
MMS :: see `vms_make.com` and `docs/INSTALL.VMS`
4. With an IDE Project File (e.g., for Visual Studio or CodeWarrior)
We provide a small number of 'project files' for various IDEs to
automatically build the library as well. Note that these files
are not actively supported by FreeType developers, they can break
or become obsolete.
To find them, have a look at the content of the `builds/<system>`
directory, where <system> stands for your OS or environment.
5. From you own IDE, or own Makefiles
If you want to create your own project file, follow the
instructions given in the `INSTALL.ANY` document of this
directory.
III. Custom builds of the library
=================================
Customizing the compilation of FreeType is easy, and allows you to
select only the components of the font engine that you really need.
For more details read the file `CUSTOMIZE`.
----------------------------------------------------------------------
[1] make++, a make tool written in Perl, has sufficient support of GNU
make extensions to build FreeType. See
https://makepp.sourceforge.net
for more information; you need version 2.0 or newer, and you must
pass option `--norc-substitution`.
----------------------------------------------------------------------
Copyright (C) 2000-2024 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 ---

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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/smooth/smooth.c -- anti-aliasing rasterizer
src/raster/raster.c -- monochrome rasterizer
src/sdf/sdf.c -- Signed Distance Field driver
-- 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/raster/*.[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) 2003-2024 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) 2006-2024 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) 2003-2024 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) 2003-2024 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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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
library. This procedure currently accepts the following options:
* `DEBUG`
Build the library with debug information and without optimization.
* `lopts=<value>`
Options to pass to the link command, e.g., `lopts=/traceback`.
* `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
sharing the same top level as the directory of FreeType and follow the
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.
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
Orginal version of the build procedures was created by
Martin P.J. Zinser <zinser@zinser.no-ip.info>
------------------------------------------------------------------------
Copyright (C) 2000-2024 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.VMS ---

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As a special exception, FreeType can also be built with the 'makepp'
build tool, available from https://makepp.sourceforge.net.
Note, however, that you will need at least version 2.0 and pass the
option --norc-substitution to have it work correctly.

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This file describes various problems that have been encountered in
compiling, installing and running FreeType 2. Suggestions for
additions or other improvements to this file are welcome.
----------------------------------------------------------------------
Running Problems
================
* Some Type 1, Multiple Masters, and CID-keyed PostScript fonts aren't
handled correctly.
-----
Of course, there might be bugs in FreeType, but some fonts based on
the PostScript format can't be handled indeed. The reason is that
FreeType doesn't contain a full PostScript interpreter but applies
pattern matching instead. In case a font doesn't follow the standard
structure of the given font format, FreeType fails. A typical example
is Adobe's `Optima' font family which contains extra code to switch
between low and high resolution versions of the glyphs.
It might be possible to patch FreeType in some situations, though.
Please report failing fonts so that we investigate the problem and set
up a list of such problematic fonts.
* Why do identical FreeType versions render differently on different
platforms?
-----
Different distributions compile FreeType with different options. The
developer version of a distribution's FreeType package, which is
needed to compile your program against FreeType, includes the file
ftoption.h. Compare each platform's copy of ftoption.h to find the
differences.
----------------------------------------------------------------------
Compilation Problems
====================
* I get an `internal compilation error' (ICE) while compiling FreeType
2.2.1 with Intel C++.
This has been reported for the following compiler version:
Intel(R) C++ Compiler for 32-bit applications,
Version 9.0 Build 20050430Z Package ID: W_CC_P_9.0.019
-----
The best solution is to update the compiler to version
Intel(R) C++ Compiler for 32-bit applications,
Version 9.1 Build 20060323Z Package ID: W_CC_P_9.1.022
or newer. If this isn't feasible, apply the following patch.
--- src/cache/ftcbasic.c 20 Mar 2006 12:10:24 -0000 1.20
+++ src/cache/ftcbasic.c.patched 15 May 2006 02:51:02 -0000
@@ -252,7 +252,7 @@
*/
FT_CALLBACK_TABLE_DEF
- const FTC_IFamilyClassRec ftc_basic_image_family_class =
+ FTC_IFamilyClassRec ftc_basic_image_family_class =
{
{
sizeof ( FTC_BasicFamilyRec ),
@@ -266,7 +266,7 @@
FT_CALLBACK_TABLE_DEF
- const FTC_GCacheClassRec ftc_basic_image_cache_class =
+ FTC_GCacheClassRec ftc_basic_image_cache_class =
{
{
ftc_inode_new,
----------------------------------------------------------------------
--- end of PROBLEMS ---

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After saying `make refdoc' or `make refdoc-venv' the `reference/' directory
contains the FreeType API reference. You need Python >= 3.5 and pip to make
this target.
There are two ways to generate the documentation:
1. Using `make refdoc':
- Ensure `python' and `pip' are available.
- Install pip package `docwriter' with `pip install --user docwriter'.
- Make target with `make refdoc'.
- This target can be run offline once required packages are installed.
2. Using `make refdoc-venv' (requires internet access):
- Ensure `python', `pip' and Python package `virtualenv' are available.
- Make target with `make refdoc-venv'.
- This may or may not require internet access every time depending on
pip and system caching.
Some troubleshooting tips:
* Regularly run `pip install --upgrade docwriter' to check for updates which
may include bug fixes.
* `Docwriter' does not support Python 2. Ensure that Python >= 3.5 is
installed and available as `python3'/`python'.
* Ensure that `docwriter' is installed in the same Python target that
`make refdoc' uses (python3/python).
* If none of this works, send a mail to `freetype-devel@nongnu.org' or file
an issue at `https://github.com/freetype/docwriter/issues'.

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Here is a list of items that need to be addressed in FreeType 2
---------------------------------------------------------------
* Implement stem3/counter hints properly in the Postscript hinter.
* Add CIDCMap support to the CID driver.
* Add track kerning support to the PFR driver.
* Add kerning (AFM file) support to the CID driver.
Here is a list of bugs which should be handled
----------------------------------------------
Other bugs have been registered at the savannah bugzilla of FreeType.
* CID driver:
Handle the case where a CID font has a top-level font matrix also
(see PLRM, 5.11.3, Type 0 CIDFonts). Since CID_FaceInfoRec lacks
a font_matrix entry we have to directly apply it to all subfont
matrices.
* CID driver:
Use top-level font matrix entry for setting the upem value, not the
entries in the FDarray. If absent, use 1000.
------------------------------------------------------------------------
Copyright (C) 2001-2024 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 TODO ---

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Due to our use of `libtool' to generate and install the FreeType 2
libraries on Unix systems, as well as other historical events, it is
generally very difficult to know precisely which release of the font
engine is installed on a given system.
This file tries to explain why and to document ways to properly detect
FreeType on Unix.
1. Version and Release numbers
------------------------------
For each new public release of FreeType 2, there are generally *three*
distinct `version' numbers to consider:
* The official FreeType 2 release number, like 2.7.0 or 2.10.2.
* The libtool (and Unix) specific version number, like 23.2.17.
This is what
pkg-config freetype2 --modversion
or
freetype-config --version
returns.
* The platform-specific shared object number, used for example when
the library is installed as `/usr/lib/libfreetype.so.6.17.2'.
The platform-specific number is, unsurprisingly, platform-specific and
varies with the operating system you are using (several variants of
Linux, FreeBSD, Solaris, etc.). You should thus _never_ use it, even
for simple tests.
The libtool-specific number does not equal the release number but is
tied to it.
The release number is available at *compile* time through the
following macros defined in `freetype.h':
- FREETYPE_MAJOR: major release number
- FREETYPE_MINOR: minor release number
- FREETYPE_PATCH: patch release number
See below for a small autoconf fragment.
The release number is also available at *runtime* through the
`FT_Library_Version' API.
2. History
----------
The following table gives, for all releases since 2.5.0, the
corresponding libtool number, as well as the shared object number
found on _most_ systems, but not all of them:
release libtool so
-------------------------------
2.13.3 26.2.20 6.20.2
2.13.2 26.1.20 6.20.1
2.13.1 26.0.20 6.20.0
2.13.0 25.0.19 6.19.0
2.12.1 24.3.18 6.18.3
2.12.0 24.2.18 6.18.2
2.11.1 24.1.18 6.18.1
2.11.0 24.0.18 6.18.0
2.10.4 23.4.17 6.17.4
2.10.3 23.3.17 6.17.3
2.10.2 23.2.17 6.17.2
2.10.1 23.1.17 6.17.1
2.10.0 23.0.17 6.17.0
2.9.1 22.1.16 6.16.1
2.9.0 22.0.16 6.16.0
2.8.1 21.0.15 6.15.0
2.8.0 20.0.14 6.14.0
2.7.1 19.0.13 6.13.0
2.7.0 18.6.12 6.12.6
2.6.5 18.5.12 6.12.5
2.6.4 18.4.12 6.12.4
2.6.3 18.3.12 6.12.3
2.6.2 18.2.12 6.12.2
2.6.1 18.1.12 6.12.1
2.6.0 18.0.12 6.12.0
2.5.5 17.4.11 6.11.4
2.5.4 17.3.11 6.11.3
2.5.3 17.2.11 6.11.2
2.5.2 17.1.11 6.11.1
2.5.1 17.0.11 6.11.0
2.5.0 16.2.10 6.10.2
3. Autoconf Code Fragment
-------------------------
Lars Clausen contributed the following autoconf fragment to check
which version of FreeType is installed on a system (now updated to use
`pkg-config' instead of `freetype-config'). This one tests for a
version that is at least 2.10.2; you should change it to check against
other release numbers.
AC_MSG_CHECKING([whether FreeType version is 2.10.2 or higher])
old_CPPFLAGS="$CPPFLAGS"
CPPFLAGS=`pkg-config freetype2 --cflags`
AC_TRY_CPP([
#include <ft2build.h>
#include <freetype/freetype.h>
#if FREETYPE_MAJOR*10000 + FREETYPE_MINOR*100 + FREETYPE_PATCH < 21002
# error FreeType version too low.
#endif
],
[AC_MSG_RESULT(yes)
FREETYPE_LIBS=`pkg-config freetype2 --libs`
AC_SUBST(FREETYPE_LIBS)
AC_DEFINE(HAVE_FREETYPE,1,[Define if you have the FreeType2 library])
CPPFLAGS="$old_CPPFLAGS"],
[AC_MSG_ERROR([Need FreeType library version 2.10.2 or higher])])
----------------------------------------------------------------------
Copyright (C) 2002-2024 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 VERSIONS.TXT ---

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This file contains a list of various font formats. It gives the
reference document and whether it is supported in FreeType 2.
Table fields
------------
wrapper format
The format used to represent the font data. In the table below it
is used only if the font format differs. Possible values are
SFNT binary
PFB binary
PS a text header, followed by binary or text data
LZW compressed with either `gzip' or `compress'
BZ2 compressed with `bzip2'.
font format
How the font is to be accessed, possibly after converting the file
type and wrapper format into a generic form. Bitmap formats are
`BDF', `PCF', and one form of `WINFNT'; all others are vector
formats. `PS' indicates third-order, `TT' second-order Bézier
curves.
font type
Sub-formats of the font format. `SBIT' and `MACSBIT' are bitmap
formats, `MM' and `VAR' support optical axes. `CFF2' supports
optical axes also.
glyph access
If not specified, the glyph access is `standard' to the font
format. Values are `CID' for CID-keyed fonts, `SYNTHETIC' for
fonts that are modified versions of other fonts by means of a
transformation matrix, and `TYPE_0' for PS fonts which are to be
accessed in a tree-like structure.
FreeType driver
The module in the FreeType library which handles the specific font
format. A missing entry means that FreeType doesn't support the
font format (yet).
Notes
-----
The SFNT container format also provides `collections' (usually
having the file extension `.ttc' or `.otc'). A collection contains
multiple font faces that share some tables to avoid redundancy, thus
reducing the file size. In FreeType, elements of a collection can
be accessed with a proper face index.
Both the GX and the OpenType 1.8 variation fonts provide `named
instances'. FreeType maps them to face indices (they can also be
accessed with the standard MM interface).
Other font formats (not using the SFNT wrapper) also provide
multiple faces within one file; they are marked with an asterisk
(`*') in the table below.
FreeType can be configured to support Mac files (on older Mac OS
versions, a `file' is stored as a data and a resource fork, that is,
within two separate data chunks). If a file can't be opened as a
font, FreeType then checks whether it is a resource fork, trying to
extract the contained font data from either a `POST' or `sfnt'
resource.
Please send additions and/or corrections to wl@gnu.org or to the
FreeType developer's list at freetype-devel@nongnu.org (for
subscribers only). If you can provide a font example for a format
which isn't supported yet please send a mail too.
wrapper font font glyph FreeType reference
format format type access driver documents
-----------------------------------------------------------------------------
--- BDF --- --- bdf 5005.BDF_Spec.pdf, X11
SFNT PS TYPE_1 --- type1 Type 1 GX Font Format [7]
(for the Mac; not supported)
SFNT PS TYPE_1 CID cid 5180.sfnt.pdf (for the Mac) [3]
SFNT PS CFF --- cff OT spec, 5176.CFF.pdf
(`OTTO' format)
SFNT PS CFF CID cff OT spec, 5176.CFF.pdf
SFNT PS CFF SYNTHETIC --- OT spec, 5176.CFF.pdf
SFNT PS CFF2 --- cff OT spec 1.8
SFNT TT SBIT --- sfnt XFree86 (bitmaps only;
with `head' table)
SFNT TT MACSBIT --- sfnt OT spec (for the Mac;
bitmaps only; `bhed' table)
SFNT TT --- --- truetype OT spec (`normal' TT font)
SFNT TT VAR --- truetype GX spec (`?var' tables)
SFNT TT VAR --- truetype OT spec 1.8
(`?var' + `?VAR' tables)
WOFF --- --- --- cff, Compressed SFNT, ver. 1.0 [6]
truetype
WOFF2 --- --- --- cff, Compressed SFNT, ver. 2.0 [6]
truetype
--- PS TYPE_1 --- type1 T1_SPEC.pdf
(PFA, Type 1 font resource)
PFB PS TYPE_1 --- type1 T1_SPEC.pdf,
5040.Download_Fonts.pdf
(`normal' Type 1 font)
--- PS TYPE_1 CID cid PLRM.pdf (CID Font Type 0;
Type 9 font)
--- PS MM --- type1 5015.Type1_Supp.pdf
(Multiple Masters)
--- PS CFF --- cff 5176.CFF.pdf (`pure' CFF)
--- PS* CFF CID cff 5176.CFF.pdf (`pure' CFF)
--- PS CFF SYNTHETIC --- 5176.CFF.pdf (`pure' CFF)
--- PS CFF/MM --- cff old 5167.CFF.pdf (`pure' CFF)
[3]
--- PS* CFF/MM CID cff old 5167.CFF.pdf (`pure' CFF)
[3]
--- PS CFF/MM SYNTHETIC --- old 5167.CFF.pdf (`pure' CFF)
[3]
PS PS CFF --- --- PLRM.pdf (Type 2) [1]
PS PS* CFF CID --- PLRM.pdf (Type 2) [1]
PS PS CFF SYNTHETIC --- PLRM.pdf (Type 2) [1]
PS PS CFF/MM --- --- PLRM.pdf (Type 2) [1]
PS PS* CFF/MM CID --- PLRM.pdf (Type 2) [1]
PS PS CFF/MM SYNTHETIC --- PLRM.pdf (Type 2) [1]
--- PS --- TYPE_0 --- PLRM.pdf
--- PS TYPE_3 --- --- PLRM.pdf (never supported)
--- PS TYPE_3 CID --- PLRM.pdf (CID Font Type 1;
Type 10 font; never supported)
PS PS TYPE_14 --- --- PLRM.pdf (Chameleon font;
Type 14 font; never supported?)
--- PS TYPE_32 CID --- PLRM.pdf (CID Font Type 4;
Type 32 font; never supported?)
PS TT --- --- type42 5012.Type42_Spec.pdf
(Type 42 font)
PS TT --- CID --- PLRM.pdf (CID Font Type 2;
Type 11 font)
? ? CEF ? cff ?
--- PCF --- --- pcf X11 [4]
LZW PCF --- --- pcf X11 [4]
BZ2 PCF --- --- pcf X11 [4]
--- PFR* PFR0 --- pfr [2]
--- PFR PFR1 --- --- (undocumented, proprietary;
probably never supported)
--- WINFNT* --- --- winfonts Windows developer's notes [5]
--- WINFNT VECTOR --- --- Windows developer's notes [5]
[1] Support should be rather simple since this is identical to `CFF'
but in a PS wrapper.
[2] The official PFR specification is no longer available, but
archive.org has archived it:
https://web.archive.org/web/20091014062300/http://www.bitstream.com/font_rendering/products/truedoc/pfrspec.html
https://web.archive.org/web/20081115152605/http://www.bitstream.com/font_rendering/pdfs/pfrspec1.3.pdf
The syntax of the auxiliary data is not defined there, but is
partially defined in MHP 1.0.3 (also called ETSI TS 101812 V1.3.1)
section 7.4.
https://www.etsi.org/
https://webapp.etsi.org/workprogram/Report_WorkItem.asp?WKI_ID=18799
[3] Support is rudimentary currently; some tables or data are not
loaded yet.
[4] See
THE X WINDOW SYSTEM SERVER: X VERSION 11, RELEASE 5
Elias Israel, Erik Fortune, Digital Press, 1992
ISBN 1-55558-096-3
for a specification given in Appendix D on pgs. 436-450. However,
this information might be out of date; unfortunately, there is no
PCF specification available online, and this book is out of print.
George Williams deduced the font format from the X11 sources and
documented it for his FontForge font editor:
https://fontforge.github.io/pcf-format.html
[5] This is from MS Windows 3; see Microsoft's Knowledge Base article
at
https://support.microsoft.com/kb/65123
[6] Supported font formats are TrueType and OpenType fonts as
defined in the OpenType specification 1.6 and newer.
[7] `The Type 1 GX Font Format' (dated 1995-09-27) was distributed in
Apple Developer CD-ROM in those days. The content of `TYP1' table
is a PostScript Type 1 font without the eexec encryption. Current
versions of FreeType don't not support this format, but FontForge
can load it.
------------------------------------------------------------------------
Copyright (C) 2004-2024 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 formats.txt ---
Local Variables:
coding: utf-8
End:

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.TH FREETYPE-CONFIG 1 "August 2024" "FreeType 2.13.3"
.
.
.SH NAME
.
freetype-config \- Get information about a libfreetype installation
.
.
.SH SYNOPSIS
.
.B freetype-config
.RI [ options ]
.
.
.SH DESCRIPTION
.
.B freetype-config
returns information needed for compiling and linking programs with the
FreeType library, such as linker flags and compilation parameters.
.
Alternatively, it can be used to query information about the
FreeType library version installed on the system, such as the
installation (directory path) prefix or the FreeType version number.
.
.PP
If
.BR pkg-config (1)
is found in the path,
.B freetype-config
acts as a wrapper for
.BR pkg-config .
.
.PP
This program is part of the FreeType package.
.
.
.SH OPTIONS
.
There are two types of options: output/display selection options, and
path override options.
.
.
.SS Output selection options
.
Only one of the output selection options should be given at each program
invocation.
.
.TP
.B \-\-prefix
Return the prefix value of the installed FreeType library (the default
prefix will be `/usr' in most cases for distribution-installed
packages).
.
.TP
.B \-\-exec-prefix
Return the executable prefix value of the installed FreeType library
(will often be the same as the prefix value).
.
.TP
.B \-\-ftversion
Return the FreeType version number, directly derived from file
`freetype.h'.
.
.TP
.B \-\-version
Return the `libtool version' of the FreeType library.
.
.TP
.B \-\-libtool
Return the library name for linking with libtool.
.
.TP
.B \-\-libs
Return compiler flags for linking with the installed FreeType library.
.
.TP
.B \-\-cflags
Return compiler flags for compiling against the installed FreeType library.
.
.TP
.B \-\-static
Make command line options display flags for static linking.
.
.TP
.B \-\-help
Show help and exit.
.
.
.SS Path override options
.
These affect any selected output option, except the libtool version
returned by
.BR \-\-version .
.
.TP
.BI \-\-prefix= PREFIX
Override
.B \-\-prefix
value with
.IR PREFIX .
.
This also sets
.BI \-\-exec-prefix= PREFIX
if option
.B \-\-exec-prefix
is not explicitly given.
.
.TP
.BI \-\-exec-prefix= EPREFIX
Override
.B \-\-exec-prefix
value with
.IR EPREFIX .
.
.
.SH BUGS
In case the libraries FreeType links to are located in non-standard
directories, and
.BR pkg-config (1)
is not available, the output from option
.B \-\-libs
might be incomplete.
.
It is thus recommended to use the
.BR pkg-config (1)
interface instead, which is able to correctly resolve all dependencies.
.
.PP
Setting
.B \-\-exec-prefix
(either explicitly or implicitly) might return incorrect results if
combined with option
.BR \-\-static .
.
The same problem can occur if you set the
.B SYSROOT
environment variable.
.
.
.SH AUTHOR
.
This manual page was contributed by Nis Martensen <nis.martensen@web.de>,
with further refinements from the FreeType team.
.
.
.\" eof

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How to update the FreeType web pages
------------------------------------
The 'freetype.org' website is hosted via the 'freetype-web' repo
located at
https://gitlab.com/freetype/freetype-web ,
which in turn is a mirror from the master 'freetype-web' repository
located at
https://gitlab.freedesktop.org/freetype/freetype-web .
Due to Cloudflare caching, changes take time to appear on
'freetype.org', so visit
https://freetype.gitlab.io/freetype-web
for instant feedback.
All the commits should *only* be done to the 'freetype-web' repo at
https://gitlab.freedesktop.org/freetype/freetype-web
When a commit is done to this repo, the CI pipeline runs and the
website is deployed via gitlab pages at
https://freetype.pages.freedesktop.org/freetype-web .
The pull mirror automatically updates the repository in 'gitlab.com',
and the CI pipeline deploys the website at:
https://freetype.gitlab.io/freetype-web
Since the 'freetype.org' website uses Cloudflare caching, it will take
a while for the changes to show up in 'freetype.org'.
If you have access to the Cloudflare dashboard you can purge the
cache from there; this will cause the cache to be fetched again
resulting in the website being updated instantly.
--- end of freetype-web.txt ---

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/*
Internal link topbar offest adjust Javascript
Code provided by @makshh on GitHub
Bug report on material-mkdocs
https://github.com/squidfunk/mkdocs-material/issues/791
*/
// Offset top helper
function offsetY(elem) {
if(!elem) elem = this;
var y = elem.offsetTop;
while (elem = elem.offsetParent) {
y += elem.offsetTop;
}
return y;
}
// If a link on the same page is clicked, calculate the
// correct offset and scroll to that part of the page.
//
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How FreeType's rasterizer work
by David Turner
Revised 2007-Feb-01
This file is an attempt to explain the internals of the FreeType
rasterizer. The rasterizer is of quite general purpose and could
easily be integrated into other programs.
I. Introduction
II. Rendering Technology
1. Requirements
2. Profiles and Spans
a. Sweeping the Shape
b. Decomposing Outlines into Profiles
c. The Render Pool
d. Computing Profiles Extents
e. Computing Profiles Coordinates
f. Sweeping and Sorting the Spans
I. Introduction
===============
A rasterizer is a library in charge of converting a vectorial
representation of a shape into a bitmap. The FreeType rasterizer
has been originally developed to render the glyphs found in
TrueType files, made up of segments and second-order Béziers.
Meanwhile it has been extended to render third-order Bézier curves
also. This document is an explanation of its design and
implementation.
While these explanations start from the basics, a knowledge of
common rasterization techniques is assumed.
II. Rendering Technology
========================
1. Requirements
---------------
We assume that all scaling, rotating, hinting, etc., has been
already done. The glyph is thus described by a list of points in
the device space.
- All point coordinates are in the 26.6 fixed float format. The
used orientation is:
^ y
| reference orientation
|
*----> x
0
`26.6' means that 26 bits are used for the integer part of a
value and 6 bits are used for the fractional part.
Consequently, the `distance' between two neighbouring pixels is
64 `units' (1 unit = 1/64 of a pixel).
Note that, for the rasterizer, pixel centers are located at
integer coordinates. The TrueType bytecode interpreter,
however, assumes that the lower left edge of a pixel (which is
taken to be a square with a length of 1 unit) has integer
coordinates.
^ y ^ y
| |
| (1,1) | (0.5,0.5)
+-----------+ +-----+-----+
| | | | |
| | | | |
| | | o-----+-----> x
| | | (0,0) |
| | | |
o-----------+-----> x +-----------+
(0,0) (-0.5,-0.5)
TrueType bytecode interpreter FreeType rasterizer
A pixel line in the target bitmap is called a `scanline'.
- A glyph is usually made of several contours, also called
`outlines'. A contour is simply a closed curve that delimits an
outer or inner region of the glyph. It is described by a series
of successive points of the points table.
Each point of the glyph has an associated flag that indicates
whether it is `on' or `off' the curve. Two successive `on'
points indicate a line segment joining the two points.
One `off' point amidst two `on' points indicates a second-degree
(conic) Bézier parametric arc, defined by these three points
(the `off' point being the control point, and the `on' ones the
start and end points). Similarly, a third-degree (cubic) Bézier
curve is described by four points (two `off' control points
between two `on' points).
Finally, for second-order curves only, two successive `off'
points forces the rasterizer to create, during rendering, an
`on' point amidst them, at their exact middle. This greatly
facilitates the definition of successive Bézier arcs.
The parametric form of a second-order Bézier curve is:
P(t) = (1-t)^2*P1 + 2*t*(1-t)*P2 + t^2*P3
(P1 and P3 are the end points, P2 the control point.)
The parametric form of a third-order Bézier curve is:
P(t) = (1-t)^3*P1 + 3*t*(1-t)^2*P2 + 3*t^2*(1-t)*P3 + t^3*P4
(P1 and P4 are the end points, P2 and P3 the control points.)
For both formulae, t is a real number in the range [0..1].
Note that the rasterizer does not use these formulae directly.
They exhibit, however, one very useful property of Bézier arcs:
Each point of the curve is a weighted average of the control
points.
As all weights are positive and always sum up to 1, whatever the
value of t, each arc point lies within the triangle (polygon)
defined by the arc's three (four) control points.
In the following, only second-order curves are discussed since
rasterization of third-order curves is completely identical.
Here some samples for second-order curves.
* # on curve
* off curve
__---__
#-__ _-- -_
--__ _- -
--__ # \
--__ #
-#
Two `on' points
Two `on' points and one `off' point
between them
*
# __ Two `on' points with two `off'
\ - - points between them. The point
\ / \ marked `0' is the middle of the
- 0 \ `off' points, and is a `virtual
-_ _- # on' point where the curve passes.
-- It does not appear in the point
* list.
2. Profiles and Spans
---------------------
The following is a basic explanation of the _kind_ of computations
made by the rasterizer to build a bitmap from a vector
representation. Note that the actual implementation is slightly
different, due to performance tuning and other factors.
However, the following ideas remain in the same category, and are
more convenient to understand.
a. Sweeping the Shape
The best way to fill a shape is to decompose it into a number of
simple horizontal segments, then turn them on in the target
bitmap. These segments are called `spans'.
__---__
_-- -_
_- -
- \
/ \
/ \
| \
__---__ Example: filling a shape
_----------_ with spans.
_--------------
----------------\
/-----------------\ This is typically done from the top
/ \ to the bottom of the shape, in a
| | \ movement called a `sweep'.
V
__---__
_----------_
_--------------
----------------\
/-----------------\
/-------------------\
|---------------------\
In order to draw a span, the rasterizer must compute its
coordinates, which are simply the x coordinates of the shape's
contours, taken on the y scanlines.
/---/ |---| Note that there are usually
/---/ |---| several spans per scanline.
| /---/ |---|
| /---/_______|---| When rendering this shape to the
V /----------------| current scanline y, we must
/-----------------| compute the x values of the
a /----| |---| points a, b, c, and d.
- - - * * - - - - * * - - y -
/ / b c| |d
/---/ |---|
/---/ |---| And then turn on the spans a-b
/---/ |---| and c-d.
/---/_______|---|
/----------------|
/-----------------|
a /----| |---|
- - - ####### - - - - ##### - - y -
/ / b c| |d
b. Decomposing Outlines into Profiles
For each scanline during the sweep, we need the following
information:
o The number of spans on the current scanline, given by the
number of shape points intersecting the scanline (these are
the points a, b, c, and d in the above example).
o The x coordinates of these points.
x coordinates are computed before the sweep, in a phase called
`decomposition' which converts the glyph into *profiles*.
Put it simply, a `profile' is a contour's portion that can only
be either ascending or descending, i.e., it is monotonic in the
vertical direction (we also say y-monotonic). There is no such
thing as a horizontal profile, as we shall see.
Here are a few examples:
this square
1 2
---->---- is made of two
| | | |
| | profiles | |
^ v ^ + v
| | | |
| | | |
----<----
up down
this triangle
P2 1 2
|\ is made of two | \
^ | \ \ | \
| | \ \ profiles | \ |
| | \ v ^ | \ |
| \ | | + \ v
| \ | | \
P1 ---___ \ ---___ \
---_\ ---_ \
<--__ P3 up down
A more general contour can be made of more than two profiles:
__ ^
/ | / ___ / |
/ | / | / | / |
| | / / => | v / /
| | | | | | ^ |
^ | |___| | | ^ + | + | + v
| | | v | |
| | | up |
|___________| | down |
<-- up down
Successive profiles are always joined by horizontal segments
that are not part of the profiles themselves.
For the rasterizer, a profile is simply an *array* that
associates one horizontal *pixel* coordinate to each bitmap
*scanline* crossed by the contour's section containing the
profile. Note that profiles are *oriented* up or down along the
glyph's original flow orientation.
In other graphics libraries, profiles are also called `edges' or
`edgelists'.
c. The Render Pool
FreeType has been designed to be able to run well on _very_
light systems, including embedded systems with very few memory.
A render pool will be allocated once; the rasterizer uses this
pool for all its needs by managing this memory directly in it.
The algorithms that are used for profile computation make it
possible to use the pool as a simple growing heap. This means
that this memory management is actually quite easy and faster
than any kind of malloc()/free() combination.
Moreover, we'll see later that the rasterizer is able, when
dealing with profiles too large and numerous to lie all at once
in the render pool, to immediately decompose recursively the
rendering process into independent sub-tasks, each taking less
memory to be performed (see `sub-banding' below).
The render pool doesn't need to be large. A 4KByte pool is
enough for nearly all renditions, though nearly 100% slower than
a more comfortable 16KByte or 32KByte pool (that was tested with
complex glyphs at sizes over 500 pixels).
d. Computing Profiles Extents
Remember that a profile is an array, associating a _scanline_ to
the x pixel coordinate of its intersection with a contour.
Though it's not exactly how the FreeType rasterizer works, it is
convenient to think that we need a profile's height before
allocating it in the pool and computing its coordinates.
The profile's height is the number of scanlines crossed by the
y-monotonic section of a contour. We thus need to compute these
sections from the vectorial description. In order to do that,
we are obliged to compute all (local and global) y extrema of
the glyph (minima and maxima).
P2 For instance, this triangle has only
two y-extrema, which are simply
|\
| \ P2.y as a vertical maximum
| \ P3.y as a vertical minimum
| \
| \ P1.y is not a vertical extremum (though
| \ it is a horizontal minimum, which we
P1 ---___ \ don't need).
---_\
P3
Note that the extrema are expressed in pixel units, not in
scanlines. The triangle's height is certainly (P3.y-P2.y+1)
pixel units, but its profiles' heights are computed in
scanlines. The exact conversion is simple:
- min scanline = FLOOR ( min y )
- max scanline = CEILING( max y )
A problem arises with Bézier Arcs. While a segment is always
necessarily y-monotonic (i.e., flat, ascending, or descending),
which makes extrema computations easy, the ascent of an arc can
vary between its control points.
P2
*
# on curve
* off curve
__-x--_
_-- -_
P1 _- - A non y-monotonic Bézier arc.
# \
- The arc goes from P1 to P3.
\
\ P3
#
We first need to be able to easily detect non-monotonic arcs,
according to their control points. I will state here, without
proof, that the monotony condition can be expressed as:
P1.y <= P2.y <= P3.y for an ever-ascending arc
P1.y >= P2.y >= P3.y for an ever-descending arc
with the special case of
P1.y = P2.y = P3.y where the arc is said to be `flat'.
As you can see, these conditions can be very easily tested.
They are, however, extremely important, as any arc that does not
satisfy them necessarily contains an extremum.
Note also that a monotonic arc can contain an extremum too,
which is then one of its `on' points:
P1 P2
#---__ * P1P2P3 is ever-descending, but P1
-_ is an y-extremum.
-
---_ \
-> \
\ P3
#
Let's go back to our previous example:
P2
*
# on curve
* off curve
__-x--_
_-- -_
P1 _- - A non-y-monotonic Bézier arc.
# \
- Here we have
\ P2.y >= P1.y &&
\ P3 P2.y >= P3.y (!)
#
We need to compute the vertical maximum of this arc to be able
to compute a profile's height (the point marked by an `x'). The
arc's equation indicates that a direct computation is possible,
but we rely on a different technique, which use will become
apparent soon.
Bézier arcs have the special property of being very easily
decomposed into two sub-arcs, which are themselves Bézier arcs.
Moreover, it is easy to prove that there is at most one vertical
extremum on each Bézier arc (for second-degree curves; similar
conditions can be found for third-order arcs).
For instance, the following arc P1P2P3 can be decomposed into
two sub-arcs Q1Q2Q3 and R1R2R3:
P2
*
# on curve
* off curve
original Bézier arc P1P2P3.
__---__
_-- --_
_- -_
- -
/ \
/ \
# #
P1 P3
P2
*
Q3 Decomposed into two subarcs
Q2 R2 Q1Q2Q3 and R1R2R3
* __-#-__ *
_-- --_
_- R1 -_ Q1 = P1 R3 = P3
- - Q2 = (P1+P2)/2 R2 = (P2+P3)/2
/ \
/ \ Q3 = R1 = (Q2+R2)/2
# #
Q1 R3 Note that Q2, R2, and Q3=R1
are on a single line which is
tangent to the curve.
We have then decomposed a non-y-monotonic Bézier curve into two
smaller sub-arcs. Note that in the above drawing, both sub-arcs
are monotonic, and that the extremum is then Q3=R1. However, in
a more general case, only one sub-arc is guaranteed to be
monotonic. Getting back to our former example:
Q2
*
__-x--_ R1
_-- #_
Q1 _- Q3 - R2
# \ *
-
\
\ R3
#
Here, we see that, though Q1Q2Q3 is still non-monotonic, R1R2R3
is ever descending: We thus know that it doesn't contain the
extremum. We can then re-subdivide Q1Q2Q3 into two sub-arcs and
go on recursively, stopping when we encounter two monotonic
subarcs, or when the subarcs become simply too small.
We will finally find the vertical extremum. Note that the
iterative process of finding an extremum is called `flattening'.
e. Computing Profiles Coordinates
Once we have the height of each profile, we are able to allocate
it in the render pool. The next task is to compute coordinates
for each scanline.
In the case of segments, the computation is straightforward,
using the Euclidean algorithm (also known as Bresenham).
However, for Bézier arcs, the job is a little more complicated.
We assume that all Béziers that are part of a profile are the
result of flattening the curve, which means that they are all
y-monotonic (ascending or descending, and never flat). We now
have to compute the intersections of arcs with the profile's
scanlines. One way is to use a similar scheme to flattening
called `stepping'.
Consider this arc, going from P1 to
--------------------- P3. Suppose that we need to
compute its intersections with the
drawn scanlines. As already
--------------------- mentioned this can be done
directly, but the involved
* P2 _---# P3 algorithm is far too slow.
------------- _-- --
_-
_/ Instead, it is still possible to
---------/----------- use the decomposition property in
/ the same recursive way, i.e.,
| subdivide the arc into subarcs
------|-------------- until these get too small to cross
| more than one scanline!
|
-----|--------------- This is very easily done using a
| rasterizer-managed stack of
| subarcs.
# P1
f. Sweeping and Sorting the Spans
Once all our profiles have been computed, we begin the sweep to
build (and fill) the spans.
As both the TrueType and Type 1 specifications use the winding
fill rule (but with opposite directions), we place, on each
scanline, the present profiles in two separate lists.
One list, called the `left' one, only contains ascending
profiles, while the other `right' list contains the descending
profiles.
As each glyph is made of closed curves, a simple geometric
property ensures that the two lists contain the same number of
elements.
Creating spans is thus straightforward:
1. We sort each list in increasing horizontal order.
2. We pair each value of the left list with its corresponding
value in the right list.
/ / | | For example, we have here
/ / | | four profiles. Two of
>/ / | | | them are ascending (1 &
1// / ^ | | | 2 3), while the two others
// // 3| | | v are descending (2 & 4).
/ //4 | | | On the given scanline,
a / /< | | the left list is (1,3),
- - - *-----* - - - - *---* - - y - and the right one is
/ / b c| |d (4,2) (sorted).
There are then two spans, joining
1 to 4 (i.e. a-b) and 3 to 2
(i.e. c-d)!
Sorting doesn't necessarily take much time, as in 99 cases out
of 100, the lists' order is kept from one scanline to the next.
We can thus implement it with two simple singly-linked lists,
sorted by a classic bubble-sort, which takes a minimum amount of
time when the lists are already sorted.
A previous version of the rasterizer used more elaborate
structures, like arrays to perform `faster' sorting. It turned
out that this old scheme is not faster than the one described
above.
Once the spans have been `created', we can simply draw them in
the target bitmap.
------------------------------------------------------------------------
Copyright (C) 2003-2024 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 raster.txt ---
Local Variables:
coding: utf-8
End:

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How to prepare a new release
----------------------------
. include/freetype/freetype.h: Update `FREETYPE_MAJOR`,
`FREETYPE_MINOR`, and `FREETYPE_PATCH`.
. Update version numbers in all files where necessary (for example, do
a grep for both '2.13.2' and '2132' for release 2.13.2).
. builds/unix/configure.raw: Update `version_info`.
. docs/CHANGES: Document differences to last release.
. README: Update.
. docs/VERSIONS.TXT: Document changed `version_info`.
. Update the 'dlg' submodule with
git submodule foreach git pull origin master
. Copy the submodule code with
make copy_submodule
and run
make distclean && make devel && make
make distclean && make devel && make multi
make distclean && make devel CC=g++ && make CC=g++ ANSIFLAGS=""
make distclean && make devel CC=g++ && make multi CC=g++ ANSIFLAGS=""
sh autogen.sh
make distclean && ./configure CC=g++ && make ANSIFLAGS=""
to test compilation with both gcc and g++ (you might also add the `-j`
flag to `make` for parallel compilation).
Note that it is normally not necessary to test standard C
compilation with the `configure`, `meson`, and `cmake` build tools
since this is done by the CI process of 'gitlab.freedesktop.org' for
every commit.
. Test C++ compilation for 'freetype-demos' too; this needs a compiled
FreeType library as described in the `README` file.
make distclean && make
make distclean && make CC=g++ ANSIFLAGS=""
. Run `src/tools/chktrcmp.py` and check that there are no undefined
`trace_XXXX` macros.
. Update meson subproject files (for both the 'freetype' and
'freetype-demos' git repositories) with
meson subprojects update
. Test meson compilation (for both the 'freetype' and 'freetype-demos'
git repositories) with
meson setup builddir && meson compile -C builddir
. Commit everything.
. After pushing the new release, tag the git repositories ('freetype',
'freetype-demos') with
git tag VER-<version> -m "" -u <committer>
and push the tags with
git push --tags
. Check with
git clean -ndx
that the git directory is really clean (and remove extraneous files
if necessary).
. Say `make dist` in both the 'freetype' and 'freetype-demos'
repositories to generate the `.tar.gz`, `.tar.xz`, and `.zip` files.
. Create the doc bundles (`freetype-doc-<version>.tar.gz`,
`freetype-doc-<version>.tar.xz`, `ftdoc<version>.zip`). This is
everything in
<freetype-web git repository>/freetype2/docs
except the `reference` subdirectory. Do *not* use option `-l` from
zip!
. Run the following script (with updated `$VERSION`, `$SAVANNAH_USER`,
`$SOURCEFORGE_USER`, and `GPG_KEY_ID` variables) to sign and upload
the bundles to both Savannah and SourceForge. The signing code has
been taken from the `gnupload` script (part of the 'automake'
bundle).
#!/bin/sh
VERSION=2.13.2
SAVANNAH_USER=wl
SOURCEFORGE_USER=wlemb
GPG_KEY_ID=BE6C3AAC63AD8E3F
#####################################################################
GPG="/usr/bin/gpg --batch --no-tty --local-user $GPG_KEY_ID"
version=`echo $VERSION | sed "s/\\.//g"`
FREETYPE_PACKAGES="freetype-$VERSION.tar.gz \
freetype-$VERSION.tar.xz \
ft$version.zip"
FT2DEMOS_PACKAGES="ft2demos-$VERSION.tar.gz \
ft2demos-$VERSION.tar.xz \
ftdmo$version.zip"
FTDOC_PACKAGES="freetype-doc-$VERSION.tar.gz \
freetype-doc-$VERSION.tar.xz \
ftdoc$version.zip"
PACKAGE_LIST="$FREETYPE_PACKAGES \
$FT2DEMOS_PACKAGES \
$FTDOC_PACKAGES"
set -e
unset passphrase
PATH=/empty echo -n "Enter GPG passphrase: "
stty -echo
read -r passphrase
stty echo
echo
for f in $PACKAGE_LIST; do
if test ! -f $f; then
echo "$0: Cannot find \`$f'" 1>&2
exit 1
else
:
fi
done
for f in $PACKAGE_LIST; do
echo "Signing $f..."
rm -f $f.sig
echo $passphrase | $GPG --passphrase-fd 0 -ba -o $f.sig $f
done
FREETYPE_SIGNATURES=
for i in $FREETYPE_PACKAGES; do
FREETYPE_SIGNATURES="$FREETYPE_SIGNATURES $i.sig"
done
FT2DEMOS_SIGNATURES=
for i in $FT2DEMOS_PACKAGES; do
FT2DEMOS_SIGNATURES="$FT2DEMOS_SIGNATURES $i.sig"
done
FTDOC_SIGNATURES=
for i in $FTDOC_PACKAGES; do
FTDOC_SIGNATURES="$FTDOC_SIGNATURES $i.sig"
done
SIGNATURE_LIST="$FREETYPE_SIGNATURES \
$FT2DEMOS_SIGNATURES \
$FTDOC_SIGNATURES"
scp $PACKAGE_LIST $SIGNATURE_LIST \
$SAVANNAH_USER@dl.sv.nongnu.org:/releases/freetype/
rsync -avP -e ssh $FREETYPE_PACKAGES $FREETYPE_SIGNATURES \
$SOURCEFORGE_USER,freetype@frs.sf.net:/home/frs/project/f/fr/freetype/freetype2/$VERSION/
rsync -avP -e ssh $FT2DEMOS_PACKAGES $FT2DEMOS_SIGNATURES \
$SOURCEFORGE_USER,freetype@frs.sf.net:/home/frs/project/f/fr/freetype/freetype-demos/$VERSION/
rsync -avP -e ssh $FTDOC_PACKAGES $FTDOC_SIGNATURES \
$SOURCEFORGE_USER,freetype@frs.sf.net:/home/frs/project/f/fr/freetype/freetype-docs/$VERSION/
# EOF
. Prepare a `README` file for SourceForge and upload it with the
following script (with updated `$VERSION` and `$SOURCEFORGE_USER`
variables).
#!/bin/sh
VERSION=2.13.2
SOURCEFORGE_USER=wlemb
#####################################################################
rsync -avP -e ssh README \
$SOURCEFORGE_USER,freetype@frs.sf.net:/home/frs/project/f/fr/freetype/freetype2/$VERSION/
# EOF
. On SourceForge, tag the just uploaded `ftXXX.zip` and
`freetype-XXX.tar.xz` files as the default files to download for
'Windows' and 'Others', respectively.
. Trigger the automatic generation of the online API reference by
updating the `FT_VERSION` variable in file `.gitlab-ci.yml` of the
'freetype-web' repository.
. Announce new release on 'freetype-announce@nongnu.org' and to
relevant newsgroups. The text should include
- SHA256 checksums of all files,
- instructions how to verify the bundles using the `.sig` file data,
- the PGP public key used to sign the archives.
----------------------------------------------------------------------
Copyright (C) 2003-2024 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 release ---

51
arcs-sdk/modules/freetype/include/freetype/config/ftconfig.h Normal file
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@@ -0,0 +1,51 @@
/****************************************************************************
*
* ftconfig.h
*
* ANSI-specific configuration file (specification only).
*
* Copyright (C) 1996-2024 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.
*
*/
/**************************************************************************
*
* This header file contains a number of macro definitions that are used by
* the rest of the engine. Most of the macros here are automatically
* determined at compile time, and you should not need to change it to port
* FreeType, except to compile the library with a non-ANSI compiler.
*
* Note however that if some specific modifications are needed, we advise
* you to place a modified copy in your build directory.
*
* The build directory is usually `builds/<system>`, and contains
* system-specific files that are always included first when building the
* library.
*
* This ANSI version should stay in `include/config/`.
*
*/
#ifndef FTCONFIG_H_
#define FTCONFIG_H_
#include <ft2build.h>
#include FT_CONFIG_OPTIONS_H
#include FT_CONFIG_STANDARD_LIBRARY_H
#include <freetype/config/integer-types.h>
#include <freetype/config/public-macros.h>
#include <freetype/config/mac-support.h>
#endif /* FTCONFIG_H_ */
/* END */

836
arcs-sdk/modules/freetype/include/freetype/config/ftheader.h Normal file
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@@ -0,0 +1,836 @@
/****************************************************************************
*
* ftheader.h
*
* Build macros of the FreeType 2 library.
*
* Copyright (C) 1996-2024 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.
*
*/
#ifndef FTHEADER_H_
#define FTHEADER_H_
/*@***********************************************************************/
/* */
/* <Macro> */
/* FT_BEGIN_HEADER */
/* */
/* <Description> */
/* This macro is used in association with @FT_END_HEADER in header */
/* files to ensure that the declarations within are properly */
/* encapsulated in an `extern "C" { .. }` block when included from a */
/* C++ compiler. */
/* */
#ifndef FT_BEGIN_HEADER
# ifdef __cplusplus
# define FT_BEGIN_HEADER extern "C" {
# else
# define FT_BEGIN_HEADER /* nothing */
# endif
#endif
/*@***********************************************************************/
/* */
/* <Macro> */
/* FT_END_HEADER */
/* */
/* <Description> */
/* This macro is used in association with @FT_BEGIN_HEADER in header */
/* files to ensure that the declarations within are properly */
/* encapsulated in an `extern "C" { .. }` block when included from a */
/* C++ compiler. */
/* */
#ifndef FT_END_HEADER
# ifdef __cplusplus
# define FT_END_HEADER }
# else
# define FT_END_HEADER /* nothing */
# endif
#endif
/**************************************************************************
*
* Aliases for the FreeType 2 public and configuration files.
*
*/
/**************************************************************************
*
* @section:
* header_file_macros
*
* @title:
* Header File Macros
*
* @abstract:
* Macro definitions used to `#include` specific header files.
*
* @description:
* In addition to the normal scheme of including header files like
*
* ```
* #include <freetype/freetype.h>
* #include <freetype/ftmm.h>
* #include <freetype/ftglyph.h>
* ```
*
* it is possible to used named macros instead. They can be used
* directly in `#include` statements as in
*
* ```
* #include FT_FREETYPE_H
* #include FT_MULTIPLE_MASTERS_H
* #include FT_GLYPH_H
* ```
*
* These macros were introduced to overcome the infamous 8.3~naming rule
* required by DOS (and `FT_MULTIPLE_MASTERS_H` is a lot more meaningful
* than `ftmm.h`).
*
*/
/* configuration files */
/**************************************************************************
*
* @macro:
* FT_CONFIG_CONFIG_H
*
* @description:
* A macro used in `#include` statements to name the file containing
* FreeType~2 configuration data.
*
*/
#ifndef FT_CONFIG_CONFIG_H
#define FT_CONFIG_CONFIG_H <freetype/config/ftconfig.h>
#endif
/**************************************************************************
*
* @macro:
* FT_CONFIG_STANDARD_LIBRARY_H
*
* @description:
* A macro used in `#include` statements to name the file containing
* FreeType~2 interface to the standard C library functions.
*
*/
#ifndef FT_CONFIG_STANDARD_LIBRARY_H
#define FT_CONFIG_STANDARD_LIBRARY_H <freetype/config/ftstdlib.h>
#endif
/**************************************************************************
*
* @macro:
* FT_CONFIG_OPTIONS_H
*
* @description:
* A macro used in `#include` statements to name the file containing
* FreeType~2 project-specific configuration options.
*
*/
#ifndef FT_CONFIG_OPTIONS_H
#define FT_CONFIG_OPTIONS_H <freetype/config/ftoption.h>
#endif
/**************************************************************************
*
* @macro:
* FT_CONFIG_MODULES_H
*
* @description:
* A macro used in `#include` statements to name the file containing the
* list of FreeType~2 modules that are statically linked to new library
* instances in @FT_Init_FreeType.
*
*/
#ifndef FT_CONFIG_MODULES_H
#define FT_CONFIG_MODULES_H <freetype/config/ftmodule.h>
#endif
/* */
/* public headers */
/**************************************************************************
*
* @macro:
* FT_FREETYPE_H
*
* @description:
* A macro used in `#include` statements to name the file containing the
* base FreeType~2 API.
*
*/
#define FT_FREETYPE_H <freetype/freetype.h>
/**************************************************************************
*
* @macro:
* FT_ERRORS_H
*
* @description:
* A macro used in `#include` statements to name the file containing the
* list of FreeType~2 error codes (and messages).
*
* It is included by @FT_FREETYPE_H.
*
*/
#define FT_ERRORS_H <freetype/fterrors.h>
/**************************************************************************
*
* @macro:
* FT_MODULE_ERRORS_H
*
* @description:
* A macro used in `#include` statements to name the file containing the
* list of FreeType~2 module error offsets (and messages).
*
*/
#define FT_MODULE_ERRORS_H <freetype/ftmoderr.h>
/**************************************************************************
*
* @macro:
* FT_SYSTEM_H
*
* @description:
* A macro used in `#include` statements to name the file containing the
* FreeType~2 interface to low-level operations (i.e., memory management
* and stream i/o).
*
* It is included by @FT_FREETYPE_H.
*
*/
#define FT_SYSTEM_H <freetype/ftsystem.h>
/**************************************************************************
*
* @macro:
* FT_IMAGE_H
*
* @description:
* A macro used in `#include` statements to name the file containing type
* definitions related to glyph images (i.e., bitmaps, outlines,
* scan-converter parameters).
*
* It is included by @FT_FREETYPE_H.
*
*/
#define FT_IMAGE_H <freetype/ftimage.h>
/**************************************************************************
*
* @macro:
* FT_TYPES_H
*
* @description:
* A macro used in `#include` statements to name the file containing the
* basic data types defined by FreeType~2.
*
* It is included by @FT_FREETYPE_H.
*
*/
#define FT_TYPES_H <freetype/fttypes.h>
/**************************************************************************
*
* @macro:
* FT_LIST_H
*
* @description:
* A macro used in `#include` statements to name the file containing the
* list management API of FreeType~2.
*
* (Most applications will never need to include this file.)
*
*/
#define FT_LIST_H <freetype/ftlist.h>
/**************************************************************************
*
* @macro:
* FT_OUTLINE_H
*
* @description:
* A macro used in `#include` statements to name the file containing the
* scalable outline management API of FreeType~2.
*
*/
#define FT_OUTLINE_H <freetype/ftoutln.h>
/**************************************************************************
*
* @macro:
* FT_SIZES_H
*
* @description:
* A macro used in `#include` statements to name the file containing the
* API which manages multiple @FT_Size objects per face.
*
*/
#define FT_SIZES_H <freetype/ftsizes.h>
/**************************************************************************
*
* @macro:
* FT_MODULE_H
*
* @description:
* A macro used in `#include` statements to name the file containing the
* module management API of FreeType~2.
*
*/
#define FT_MODULE_H <freetype/ftmodapi.h>
/**************************************************************************
*
* @macro:
* FT_RENDER_H
*
* @description:
* A macro used in `#include` statements to name the file containing the
* renderer module management API of FreeType~2.
*
*/
#define FT_RENDER_H <freetype/ftrender.h>
/**************************************************************************
*
* @macro:
* FT_DRIVER_H
*
* @description:
* A macro used in `#include` statements to name the file containing
* structures and macros related to the driver modules.
*
*/
#define FT_DRIVER_H <freetype/ftdriver.h>
/**************************************************************************
*
* @macro:
* FT_AUTOHINTER_H
*
* @description:
* A macro used in `#include` statements to name the file containing
* structures and macros related to the auto-hinting module.
*
* Deprecated since version~2.9; use @FT_DRIVER_H instead.
*
*/
#define FT_AUTOHINTER_H FT_DRIVER_H
/**************************************************************************
*
* @macro:
* FT_CFF_DRIVER_H
*
* @description:
* A macro used in `#include` statements to name the file containing
* structures and macros related to the CFF driver module.
*
* Deprecated since version~2.9; use @FT_DRIVER_H instead.
*
*/
#define FT_CFF_DRIVER_H FT_DRIVER_H
/**************************************************************************
*
* @macro:
* FT_TRUETYPE_DRIVER_H
*
* @description:
* A macro used in `#include` statements to name the file containing
* structures and macros related to the TrueType driver module.
*
* Deprecated since version~2.9; use @FT_DRIVER_H instead.
*
*/
#define FT_TRUETYPE_DRIVER_H FT_DRIVER_H
/**************************************************************************
*
* @macro:
* FT_PCF_DRIVER_H
*
* @description:
* A macro used in `#include` statements to name the file containing
* structures and macros related to the PCF driver module.
*
* Deprecated since version~2.9; use @FT_DRIVER_H instead.
*
*/
#define FT_PCF_DRIVER_H FT_DRIVER_H
/**************************************************************************
*
* @macro:
* FT_TYPE1_TABLES_H
*
* @description:
* A macro used in `#include` statements to name the file containing the
* types and API specific to the Type~1 format.
*
*/
#define FT_TYPE1_TABLES_H <freetype/t1tables.h>
/**************************************************************************
*
* @macro:
* FT_TRUETYPE_IDS_H
*
* @description:
* A macro used in `#include` statements to name the file containing the
* enumeration values which identify name strings, languages, encodings,
* etc. This file really contains a _large_ set of constant macro
* definitions, taken from the TrueType and OpenType specifications.
*
*/
#define FT_TRUETYPE_IDS_H <freetype/ttnameid.h>
/**************************************************************************
*
* @macro:
* FT_TRUETYPE_TABLES_H
*
* @description:
* A macro used in `#include` statements to name the file containing the
* types and API specific to the TrueType (as well as OpenType) format.
*
*/
#define FT_TRUETYPE_TABLES_H <freetype/tttables.h>
/**************************************************************************
*
* @macro:
* FT_TRUETYPE_TAGS_H
*
* @description:
* A macro used in `#include` statements to name the file containing the
* definitions of TrueType four-byte 'tags' which identify blocks in
* SFNT-based font formats (i.e., TrueType and OpenType).
*
*/
#define FT_TRUETYPE_TAGS_H <freetype/tttags.h>
/**************************************************************************
*
* @macro:
* FT_BDF_H
*
* @description:
* A macro used in `#include` statements to name the file containing the
* definitions of an API which accesses BDF-specific strings from a face.
*
*/
#define FT_BDF_H <freetype/ftbdf.h>
/**************************************************************************
*
* @macro:
* FT_CID_H
*
* @description:
* A macro used in `#include` statements to name the file containing the
* definitions of an API which access CID font information from a face.
*
*/
#define FT_CID_H <freetype/ftcid.h>
/**************************************************************************
*
* @macro:
* FT_GZIP_H
*
* @description:
* A macro used in `#include` statements to name the file containing the
* definitions of an API which supports gzip-compressed files.
*
*/
#define FT_GZIP_H <freetype/ftgzip.h>
/**************************************************************************
*
* @macro:
* FT_LZW_H
*
* @description:
* A macro used in `#include` statements to name the file containing the
* definitions of an API which supports LZW-compressed files.
*
*/
#define FT_LZW_H <freetype/ftlzw.h>
/**************************************************************************
*
* @macro:
* FT_BZIP2_H
*
* @description:
* A macro used in `#include` statements to name the file containing the
* definitions of an API which supports bzip2-compressed files.
*
*/
#define FT_BZIP2_H <freetype/ftbzip2.h>
/**************************************************************************
*
* @macro:
* FT_WINFONTS_H
*
* @description:
* A macro used in `#include` statements to name the file containing the
* definitions of an API which supports Windows FNT files.
*
*/
#define FT_WINFONTS_H <freetype/ftwinfnt.h>
/**************************************************************************
*
* @macro:
* FT_GLYPH_H
*
* @description:
* A macro used in `#include` statements to name the file containing the
* API of the optional glyph management component.
*
*/
#define FT_GLYPH_H <freetype/ftglyph.h>
/**************************************************************************
*
* @macro:
* FT_BITMAP_H
*
* @description:
* A macro used in `#include` statements to name the file containing the
* API of the optional bitmap conversion component.
*
*/
#define FT_BITMAP_H <freetype/ftbitmap.h>
/**************************************************************************
*
* @macro:
* FT_BBOX_H
*
* @description:
* A macro used in `#include` statements to name the file containing the
* API of the optional exact bounding box computation routines.
*
*/
#define FT_BBOX_H <freetype/ftbbox.h>
/**************************************************************************
*
* @macro:
* FT_CACHE_H
*
* @description:
* A macro used in `#include` statements to name the file containing the
* API of the optional FreeType~2 cache sub-system.
*
*/
#define FT_CACHE_H <freetype/ftcache.h>
/**************************************************************************
*
* @macro:
* FT_MAC_H
*
* @description:
* A macro used in `#include` statements to name the file containing the
* Macintosh-specific FreeType~2 API. The latter is used to access fonts
* embedded in resource forks.
*
* This header file must be explicitly included by client applications
* compiled on the Mac (note that the base API still works though).
*
*/
#define FT_MAC_H <freetype/ftmac.h>
/**************************************************************************
*
* @macro:
* FT_MULTIPLE_MASTERS_H
*
* @description:
* A macro used in `#include` statements to name the file containing the
* optional multiple-masters management API of FreeType~2.
*
*/
#define FT_MULTIPLE_MASTERS_H <freetype/ftmm.h>
/**************************************************************************
*
* @macro:
* FT_SFNT_NAMES_H
*
* @description:
* A macro used in `#include` statements to name the file containing the
* optional FreeType~2 API which accesses embedded 'name' strings in
* SFNT-based font formats (i.e., TrueType and OpenType).
*
*/
#define FT_SFNT_NAMES_H <freetype/ftsnames.h>
/**************************************************************************
*
* @macro:
* FT_OPENTYPE_VALIDATE_H
*
* @description:
* A macro used in `#include` statements to name the file containing the
* optional FreeType~2 API which validates OpenType tables ('BASE',
* 'GDEF', 'GPOS', 'GSUB', 'JSTF').
*
*/
#define FT_OPENTYPE_VALIDATE_H <freetype/ftotval.h>
/**************************************************************************
*
* @macro:
* FT_GX_VALIDATE_H
*
* @description:
* A macro used in `#include` statements to name the file containing the
* optional FreeType~2 API which validates TrueTypeGX/AAT tables ('feat',
* 'mort', 'morx', 'bsln', 'just', 'kern', 'opbd', 'trak', 'prop').
*
*/
#define FT_GX_VALIDATE_H <freetype/ftgxval.h>
/**************************************************************************
*
* @macro:
* FT_PFR_H
*
* @description:
* A macro used in `#include` statements to name the file containing the
* FreeType~2 API which accesses PFR-specific data.
*
*/
#define FT_PFR_H <freetype/ftpfr.h>
/**************************************************************************
*
* @macro:
* FT_STROKER_H
*
* @description:
* A macro used in `#include` statements to name the file containing the
* FreeType~2 API which provides functions to stroke outline paths.
*/
#define FT_STROKER_H <freetype/ftstroke.h>
/**************************************************************************
*
* @macro:
* FT_SYNTHESIS_H
*
* @description:
* A macro used in `#include` statements to name the file containing the
* FreeType~2 API which performs artificial obliquing and emboldening.
*/
#define FT_SYNTHESIS_H <freetype/ftsynth.h>
/**************************************************************************
*
* @macro:
* FT_FONT_FORMATS_H
*
* @description:
* A macro used in `#include` statements to name the file containing the
* FreeType~2 API which provides functions specific to font formats.
*/
#define FT_FONT_FORMATS_H <freetype/ftfntfmt.h>
/* deprecated */
#define FT_XFREE86_H FT_FONT_FORMATS_H
/**************************************************************************
*
* @macro:
* FT_TRIGONOMETRY_H
*
* @description:
* A macro used in `#include` statements to name the file containing the
* FreeType~2 API which performs trigonometric computations (e.g.,
* cosines and arc tangents).
*/
#define FT_TRIGONOMETRY_H <freetype/fttrigon.h>
/**************************************************************************
*
* @macro:
* FT_LCD_FILTER_H
*
* @description:
* A macro used in `#include` statements to name the file containing the
* FreeType~2 API which performs color filtering for subpixel rendering.
*/
#define FT_LCD_FILTER_H <freetype/ftlcdfil.h>
/**************************************************************************
*
* @macro:
* FT_INCREMENTAL_H
*
* @description:
* A macro used in `#include` statements to name the file containing the
* FreeType~2 API which performs incremental glyph loading.
*/
#define FT_INCREMENTAL_H <freetype/ftincrem.h>
/**************************************************************************
*
* @macro:
* FT_GASP_H
*
* @description:
* A macro used in `#include` statements to name the file containing the
* FreeType~2 API which returns entries from the TrueType GASP table.
*/
#define FT_GASP_H <freetype/ftgasp.h>
/**************************************************************************
*
* @macro:
* FT_ADVANCES_H
*
* @description:
* A macro used in `#include` statements to name the file containing the
* FreeType~2 API which returns individual and ranged glyph advances.
*/
#define FT_ADVANCES_H <freetype/ftadvanc.h>
/**************************************************************************
*
* @macro:
* FT_COLOR_H
*
* @description:
* A macro used in `#include` statements to name the file containing the
* FreeType~2 API which handles the OpenType 'CPAL' table.
*/
#define FT_COLOR_H <freetype/ftcolor.h>
/**************************************************************************
*
* @macro:
* FT_OTSVG_H
*
* @description:
* A macro used in `#include` statements to name the file containing the
* FreeType~2 API which handles the OpenType 'SVG~' glyphs.
*/
#define FT_OTSVG_H <freetype/otsvg.h>
/* */
/* These header files don't need to be included by the user. */
#define FT_ERROR_DEFINITIONS_H <freetype/fterrdef.h>
#define FT_PARAMETER_TAGS_H <freetype/ftparams.h>
/* Deprecated macros. */
#define FT_UNPATENTED_HINTING_H <freetype/ftparams.h>
#define FT_TRUETYPE_UNPATENTED_H <freetype/ftparams.h>
/* `FT_CACHE_H` is the only header file needed for the cache subsystem. */
#define FT_CACHE_IMAGE_H FT_CACHE_H
#define FT_CACHE_SMALL_BITMAPS_H FT_CACHE_H
#define FT_CACHE_CHARMAP_H FT_CACHE_H
/* The internals of the cache sub-system are no longer exposed. We */
/* default to `FT_CACHE_H` at the moment just in case, but we know */
/* of no rogue client that uses them. */
/* */
#define FT_CACHE_MANAGER_H FT_CACHE_H
#define FT_CACHE_INTERNAL_MRU_H FT_CACHE_H
#define FT_CACHE_INTERNAL_MANAGER_H FT_CACHE_H
#define FT_CACHE_INTERNAL_CACHE_H FT_CACHE_H
#define FT_CACHE_INTERNAL_GLYPH_H FT_CACHE_H
#define FT_CACHE_INTERNAL_IMAGE_H FT_CACHE_H
#define FT_CACHE_INTERNAL_SBITS_H FT_CACHE_H
/* TODO(david): Move this section below to a different header */
#ifdef FT2_BUILD_LIBRARY
#if defined( _MSC_VER ) /* Visual C++ (and Intel C++) */
/* We disable the warning `conditional expression is constant' here */
/* in order to compile cleanly with the maximum level of warnings. */
/* In particular, the warning complains about stuff like `while(0)' */
/* which is very useful in macro definitions. There is no benefit */
/* in having it enabled. */
#pragma warning( disable : 4127 )
#endif /* _MSC_VER */
#endif /* FT2_BUILD_LIBRARY */
#endif /* FTHEADER_H_ */
/* END */

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/*
* This file registers the FreeType modules compiled into the library.
*
* If you use GNU make, this file IS NOT USED! Instead, it is created in
* the objects directory (normally `<topdir>/objs/`) based on information
* from `<topdir>/modules.cfg`.
*
* Please read `docs/INSTALL.ANY` and `docs/CUSTOMIZE` how to compile
* FreeType without GNU make.
*
*/
FT_USE_MODULE( FT_Module_Class, autofit_module_class )
FT_USE_MODULE( FT_Driver_ClassRec, tt_driver_class )
FT_USE_MODULE( FT_Driver_ClassRec, t1_driver_class )
FT_USE_MODULE( FT_Driver_ClassRec, cff_driver_class )
FT_USE_MODULE( FT_Driver_ClassRec, t1cid_driver_class )
FT_USE_MODULE( FT_Driver_ClassRec, pfr_driver_class )
FT_USE_MODULE( FT_Driver_ClassRec, t42_driver_class )
FT_USE_MODULE( FT_Driver_ClassRec, winfnt_driver_class )
FT_USE_MODULE( FT_Driver_ClassRec, pcf_driver_class )
FT_USE_MODULE( FT_Driver_ClassRec, bdf_driver_class )
FT_USE_MODULE( FT_Module_Class, psaux_module_class )
FT_USE_MODULE( FT_Module_Class, psnames_module_class )
FT_USE_MODULE( FT_Module_Class, pshinter_module_class )
FT_USE_MODULE( FT_Module_Class, sfnt_module_class )
FT_USE_MODULE( FT_Renderer_Class, ft_smooth_renderer_class )
FT_USE_MODULE( FT_Renderer_Class, ft_raster1_renderer_class )
FT_USE_MODULE( FT_Renderer_Class, ft_sdf_renderer_class )
FT_USE_MODULE( FT_Renderer_Class, ft_bitmap_sdf_renderer_class )
FT_USE_MODULE( FT_Renderer_Class, ft_svg_renderer_class )
/* EOF */

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/****************************************************************************
*
* ftstdlib.h
*
* ANSI-specific library and header configuration file (specification
* only).
*
* Copyright (C) 2002-2024 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.
*
*/
/**************************************************************************
*
* This file is used to group all `#includes` to the ANSI~C library that
* FreeType normally requires. It also defines macros to rename the
* standard functions within the FreeType source code.
*
* Load a file which defines `FTSTDLIB_H_` before this one to override it.
*
*/
#ifndef FTSTDLIB_H_
#define FTSTDLIB_H_
#include <stddef.h>
#define ft_ptrdiff_t ptrdiff_t
/**************************************************************************
*
* integer limits
*
* `UINT_MAX` and `ULONG_MAX` are used to automatically compute the size of
* `int` and `long` in bytes at compile-time. So far, this works for all
* platforms the library has been tested on. We also check `ULLONG_MAX`
* to see whether we can use 64-bit `long long` later on.
*
* Note that on the extremely rare platforms that do not provide integer
* types that are _exactly_ 16 and 32~bits wide (e.g., some old Crays where
* `int` is 36~bits), we do not make any guarantee about the correct
* behaviour of FreeType~2 with all fonts.
*
* In these cases, `ftconfig.h` will refuse to compile anyway with a
* message like 'couldn't find 32-bit type' or something similar.
*
*/
#include <limits.h>
#define FT_CHAR_BIT CHAR_BIT
#define FT_USHORT_MAX USHRT_MAX
#define FT_INT_MAX INT_MAX
#define FT_INT_MIN INT_MIN
#define FT_UINT_MAX UINT_MAX
#define FT_LONG_MIN LONG_MIN
#define FT_LONG_MAX LONG_MAX
#define FT_ULONG_MAX ULONG_MAX
#ifdef LLONG_MAX
#define FT_LLONG_MAX LLONG_MAX
#endif
#ifdef LLONG_MIN
#define FT_LLONG_MIN LLONG_MIN
#endif
#ifdef ULLONG_MAX
#define FT_ULLONG_MAX ULLONG_MAX
#endif
/**************************************************************************
*
* character and string processing
*
*/
#include <string.h>
#define ft_memchr memchr
#define ft_memcmp memcmp
#define ft_memcpy memcpy
#define ft_memmove memmove
#define ft_memset memset
#define ft_strcat strcat
#define ft_strcmp strcmp
#define ft_strcpy strcpy
#define ft_strlen strlen
#define ft_strncmp strncmp
#define ft_strncpy strncpy
#define ft_strrchr strrchr
#define ft_strstr strstr
/**************************************************************************
*
* file handling
*
*/
#include <stdio.h>
#define FT_FILE FILE
#define ft_fclose fclose
#define ft_fopen fopen
#define ft_fread fread
#define ft_fseek fseek
#define ft_ftell ftell
#define ft_snprintf snprintf
/**************************************************************************
*
* sorting
*
*/
#include <stdlib.h>
#define ft_qsort qsort
/**************************************************************************
*
* memory allocation
*
*/
#define ft_scalloc calloc
#define ft_sfree free
#define ft_smalloc malloc
#define ft_srealloc realloc
/**************************************************************************
*
* miscellaneous
*
*/
#define ft_strtol strtol
#define ft_getenv getenv
/**************************************************************************
*
* execution control
*
*/
#include <setjmp.h>
#define ft_jmp_buf jmp_buf /* note: this cannot be a typedef since */
/* `jmp_buf` is defined as a macro */
/* on certain platforms */
#define ft_longjmp longjmp
#define ft_setjmp( b ) setjmp( *(ft_jmp_buf*) &(b) ) /* same thing here */
/* The following is only used for debugging purposes, i.e., if */
/* `FT_DEBUG_LEVEL_ERROR` or `FT_DEBUG_LEVEL_TRACE` are defined. */
#include <stdarg.h>
#endif /* FTSTDLIB_H_ */
/* END */

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/****************************************************************************
*
* config/integer-types.h
*
* FreeType integer types definitions.
*
* Copyright (C) 1996-2024 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.
*
*/
#ifndef FREETYPE_CONFIG_INTEGER_TYPES_H_
#define FREETYPE_CONFIG_INTEGER_TYPES_H_
/* There are systems (like the Texas Instruments 'C54x) where a `char` */
/* has 16~bits. ANSI~C says that `sizeof(char)` is always~1. Since an */
/* `int` has 16~bits also for this system, `sizeof(int)` gives~1 which */
/* is probably unexpected. */
/* */
/* `CHAR_BIT` (defined in `limits.h`) gives the number of bits in a */
/* `char` type. */
#ifndef FT_CHAR_BIT
#define FT_CHAR_BIT CHAR_BIT
#endif
#ifndef FT_SIZEOF_INT
/* The size of an `int` type. */
#if FT_UINT_MAX == 0xFFFFUL
#define FT_SIZEOF_INT ( 16 / FT_CHAR_BIT )
#elif FT_UINT_MAX == 0xFFFFFFFFUL
#define FT_SIZEOF_INT ( 32 / FT_CHAR_BIT )
#elif FT_UINT_MAX > 0xFFFFFFFFUL && FT_UINT_MAX == 0xFFFFFFFFFFFFFFFFUL
#define FT_SIZEOF_INT ( 64 / FT_CHAR_BIT )
#else
#error "Unsupported size of `int' type!"
#endif
#endif /* !defined(FT_SIZEOF_INT) */
#ifndef FT_SIZEOF_LONG
/* The size of a `long` type. A five-byte `long` (as used e.g. on the */
/* DM642) is recognized but avoided. */
#if FT_ULONG_MAX == 0xFFFFFFFFUL
#define FT_SIZEOF_LONG ( 32 / FT_CHAR_BIT )
#elif FT_ULONG_MAX > 0xFFFFFFFFUL && FT_ULONG_MAX == 0xFFFFFFFFFFUL
#define FT_SIZEOF_LONG ( 32 / FT_CHAR_BIT )
#elif FT_ULONG_MAX > 0xFFFFFFFFUL && FT_ULONG_MAX == 0xFFFFFFFFFFFFFFFFUL
#define FT_SIZEOF_LONG ( 64 / FT_CHAR_BIT )
#else
#error "Unsupported size of `long' type!"
#endif
#endif /* !defined(FT_SIZEOF_LONG) */
#ifndef FT_SIZEOF_LONG_LONG
/* The size of a `long long` type if available */
#if defined( FT_ULLONG_MAX ) && FT_ULLONG_MAX >= 0xFFFFFFFFFFFFFFFFULL
#define FT_SIZEOF_LONG_LONG ( 64 / FT_CHAR_BIT )
#else
#define FT_SIZEOF_LONG_LONG 0
#endif
#endif /* !defined(FT_SIZEOF_LONG_LONG) */
/**************************************************************************
*
* @section:
* basic_types
*
*/
/**************************************************************************
*
* @type:
* FT_Int16
*
* @description:
* A typedef for a 16bit signed integer type.
*/
typedef signed short FT_Int16;
/**************************************************************************
*
* @type:
* FT_UInt16
*
* @description:
* A typedef for a 16bit unsigned integer type.
*/
typedef unsigned short FT_UInt16;
/* */
/* this #if 0 ... #endif clause is for documentation purposes */
#if 0
/**************************************************************************
*
* @type:
* FT_Int32
*
* @description:
* A typedef for a 32bit signed integer type. The size depends on the
* configuration.
*/
typedef signed XXX FT_Int32;
/**************************************************************************
*
* @type:
* FT_UInt32
*
* A typedef for a 32bit unsigned integer type. The size depends on the
* configuration.
*/
typedef unsigned XXX FT_UInt32;
/**************************************************************************
*
* @type:
* FT_Int64
*
* A typedef for a 64bit signed integer type. The size depends on the
* configuration. Only defined if there is real 64bit support;
* otherwise, it gets emulated with a structure (if necessary).
*/
typedef signed XXX FT_Int64;
/**************************************************************************
*
* @type:
* FT_UInt64
*
* A typedef for a 64bit unsigned integer type. The size depends on the
* configuration. Only defined if there is real 64bit support;
* otherwise, it gets emulated with a structure (if necessary).
*/
typedef unsigned XXX FT_UInt64;
/* */
#endif
#if FT_SIZEOF_INT == ( 32 / FT_CHAR_BIT )
typedef signed int FT_Int32;
typedef unsigned int FT_UInt32;
#elif FT_SIZEOF_LONG == ( 32 / FT_CHAR_BIT )
typedef signed long FT_Int32;
typedef unsigned long FT_UInt32;
#else
#error "no 32bit type found -- please check your configuration files"
#endif
/* look up an integer type that is at least 32~bits */
#if FT_SIZEOF_INT >= ( 32 / FT_CHAR_BIT )
typedef int FT_Fast;
typedef unsigned int FT_UFast;
#elif FT_SIZEOF_LONG >= ( 32 / FT_CHAR_BIT )
typedef long FT_Fast;
typedef unsigned long FT_UFast;
#endif
/* determine whether we have a 64-bit integer type */
#if FT_SIZEOF_LONG == ( 64 / FT_CHAR_BIT )
#define FT_INT64 long
#define FT_UINT64 unsigned long
#elif FT_SIZEOF_LONG_LONG >= ( 64 / FT_CHAR_BIT )
#define FT_INT64 long long int
#define FT_UINT64 unsigned long long int
/**************************************************************************
*
* A 64-bit data type may create compilation problems if you compile in
* strict ANSI mode. To avoid them, we disable other 64-bit data types if
* `__STDC__` is defined. You can however ignore this rule by defining the
* `FT_CONFIG_OPTION_FORCE_INT64` configuration macro.
*/
#elif !defined( __STDC__ ) || defined( FT_CONFIG_OPTION_FORCE_INT64 )
#if defined( _MSC_VER ) && _MSC_VER >= 900 /* Visual C++ (and Intel C++) */
/* this compiler provides the `__int64` type */
#define FT_INT64 __int64
#define FT_UINT64 unsigned __int64
#elif defined( __BORLANDC__ ) /* Borland C++ */
/* XXXX: We should probably check the value of `__BORLANDC__` in order */
/* to test the compiler version. */
/* this compiler provides the `__int64` type */
#define FT_INT64 __int64
#define FT_UINT64 unsigned __int64
#elif defined( __WATCOMC__ ) && __WATCOMC__ >= 1100 /* Watcom C++ */
#define FT_INT64 long long int
#define FT_UINT64 unsigned long long int
#elif defined( __MWERKS__ ) /* Metrowerks CodeWarrior */
#define FT_INT64 long long int
#define FT_UINT64 unsigned long long int
#elif defined( __GNUC__ )
/* GCC provides the `long long` type */
#define FT_INT64 long long int
#define FT_UINT64 unsigned long long int
#endif /* !__STDC__ */
#endif /* FT_SIZEOF_LONG == (64 / FT_CHAR_BIT) */
#ifdef FT_INT64
typedef FT_INT64 FT_Int64;
typedef FT_UINT64 FT_UInt64;
#endif
#endif /* FREETYPE_CONFIG_INTEGER_TYPES_H_ */

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/****************************************************************************
*
* config/mac-support.h
*
* Mac/OS X support configuration header.
*
* Copyright (C) 1996-2024 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.
*
*/
#ifndef FREETYPE_CONFIG_MAC_SUPPORT_H_
#define FREETYPE_CONFIG_MAC_SUPPORT_H_
/**************************************************************************
*
* Mac support
*
* This is the only necessary change, so it is defined here instead
* providing a new configuration file.
*/
#if defined( __APPLE__ ) || ( defined( __MWERKS__ ) && defined( macintosh ) )
/* No Carbon frameworks for 64bit 10.4.x. */
/* `AvailabilityMacros.h` is available since Mac OS X 10.2, */
/* so guess the system version by maximum errno before inclusion. */
#include <errno.h>
#ifdef ECANCELED /* defined since 10.2 */
#include "AvailabilityMacros.h"
#endif
#if defined( __LP64__ ) && \
( MAC_OS_X_VERSION_MIN_REQUIRED <= MAC_OS_X_VERSION_10_4 )
#undef FT_MACINTOSH
#endif
#elif defined( __SC__ ) || defined( __MRC__ )
/* Classic MacOS compilers */
#include "ConditionalMacros.h"
#if TARGET_OS_MAC
#define FT_MACINTOSH 1
#endif
#endif /* Mac support */
#endif /* FREETYPE_CONFIG_MAC_SUPPORT_H_ */

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/****************************************************************************
*
* config/public-macros.h
*
* Define a set of compiler macros used in public FreeType headers.
*
* Copyright (C) 2020-2024 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.
*
*/
/*
* The definitions in this file are used by the public FreeType headers
* and thus should be considered part of the public API.
*
* Other compiler-specific macro definitions that are not exposed by the
* FreeType API should go into
* `include/freetype/internal/compiler-macros.h` instead.
*/
#ifndef FREETYPE_CONFIG_PUBLIC_MACROS_H_
#define FREETYPE_CONFIG_PUBLIC_MACROS_H_
/*
* `FT_BEGIN_HEADER` and `FT_END_HEADER` might have already been defined
* by `freetype/config/ftheader.h`, but we don't want to include this
* header here, so redefine the macros here only when needed. Their
* definition is very stable, so keeping them in sync with the ones in the
* header should not be a maintenance issue.
*/
#ifndef FT_BEGIN_HEADER
#ifdef __cplusplus
#define FT_BEGIN_HEADER extern "C" {
#else
#define FT_BEGIN_HEADER /* empty */
#endif
#endif /* FT_BEGIN_HEADER */
#ifndef FT_END_HEADER
#ifdef __cplusplus
#define FT_END_HEADER }
#else
#define FT_END_HEADER /* empty */
#endif
#endif /* FT_END_HEADER */
FT_BEGIN_HEADER
/*
* Mark a function declaration as public. This ensures it will be
* properly exported to client code. Place this before a function
* declaration.
*
* NOTE: This macro should be considered an internal implementation
* detail, and not part of the FreeType API. It is only defined here
* because it is needed by `FT_EXPORT`.
*/
/* Visual C, mingw */
#if defined( _WIN32 )
#if defined( FT2_BUILD_LIBRARY ) && defined( DLL_EXPORT )
#define FT_PUBLIC_FUNCTION_ATTRIBUTE __declspec( dllexport )
#elif defined( DLL_IMPORT )
#define FT_PUBLIC_FUNCTION_ATTRIBUTE __declspec( dllimport )
#endif
/* gcc, clang */
#elif ( defined( __GNUC__ ) && __GNUC__ >= 4 ) || defined( __clang__ )
#define FT_PUBLIC_FUNCTION_ATTRIBUTE \
__attribute__(( visibility( "default" ) ))
/* Sun */
#elif defined( __SUNPRO_C ) && __SUNPRO_C >= 0x550
#define FT_PUBLIC_FUNCTION_ATTRIBUTE __global
#endif
#ifndef FT_PUBLIC_FUNCTION_ATTRIBUTE
#define FT_PUBLIC_FUNCTION_ATTRIBUTE /* empty */
#endif
/*
* Define a public FreeType API function. This ensures it is properly
* exported or imported at build time. The macro parameter is the
* function's return type as in:
*
* FT_EXPORT( FT_Bool )
* FT_Object_Method( FT_Object obj,
* ... );
*
* NOTE: This requires that all `FT_EXPORT` uses are inside
* `FT_BEGIN_HEADER ... FT_END_HEADER` blocks. This guarantees that the
* functions are exported with C linkage, even when the header is included
* by a C++ source file.
*/
#define FT_EXPORT( x ) FT_PUBLIC_FUNCTION_ATTRIBUTE extern x
/*
* `FT_UNUSED` indicates that a given parameter is not used -- this is
* only used to get rid of unpleasant compiler warnings.
*
* Technically, this was not meant to be part of the public API, but some
* third-party code depends on it.
*/
#ifndef FT_UNUSED
#define FT_UNUSED( arg ) ( (arg) = (arg) )
#endif
/*
* Support for casts in both C and C++.
*/
#ifdef __cplusplus
#define FT_STATIC_CAST( type, var ) static_cast<type>(var)
#define FT_REINTERPRET_CAST( type, var ) reinterpret_cast<type>(var)
#define FT_STATIC_BYTE_CAST( type, var ) \
static_cast<type>( static_cast<unsigned char>( var ) )
#else
#define FT_STATIC_CAST( type, var ) (type)(var)
#define FT_REINTERPRET_CAST( type, var ) (type)(var)
#define FT_STATIC_BYTE_CAST( type, var ) (type)(unsigned char)(var)
#endif
FT_END_HEADER
#endif /* FREETYPE_CONFIG_PUBLIC_MACROS_H_ */

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/****************************************************************************
*
* ftadvanc.h
*
* Quick computation of advance widths (specification only).
*
* Copyright (C) 2008-2024 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.
*
*/
#ifndef FTADVANC_H_
#define FTADVANC_H_
#include <freetype/freetype.h>
#ifdef FREETYPE_H
#error "freetype.h of FreeType 1 has been loaded!"
#error "Please fix the directory search order for header files"
#error "so that freetype.h of FreeType 2 is found first."
#endif
FT_BEGIN_HEADER
/**************************************************************************
*
* @section:
* quick_advance
*
* @title:
* Quick retrieval of advance values
*
* @abstract:
* Retrieve horizontal and vertical advance values without processing
* glyph outlines, if possible.
*
* @description:
* This section contains functions to quickly extract advance values
* without handling glyph outlines, if possible.
*
* @order:
* FT_Get_Advance
* FT_Get_Advances
*
*/
/**************************************************************************
*
* @enum:
* FT_ADVANCE_FLAG_FAST_ONLY
*
* @description:
* A bit-flag to be OR-ed with the `flags` parameter of the
* @FT_Get_Advance and @FT_Get_Advances functions.
*
* If set, it indicates that you want these functions to fail if the
* corresponding hinting mode or font driver doesn't allow for very quick
* advance computation.
*
* Typically, glyphs that are either unscaled, unhinted, bitmapped, or
* light-hinted can have their advance width computed very quickly.
*
* Normal and bytecode hinted modes that require loading, scaling, and
* hinting of the glyph outline, are extremely slow by comparison.
*/
#define FT_ADVANCE_FLAG_FAST_ONLY 0x20000000L
/**************************************************************************
*
* @function:
* FT_Get_Advance
*
* @description:
* Retrieve the advance value of a given glyph outline in an @FT_Face.
*
* @input:
* face ::
* The source @FT_Face handle.
*
* gindex ::
* The glyph index.
*
* load_flags ::
* A set of bit flags similar to those used when calling
* @FT_Load_Glyph, used to determine what kind of advances you need.
*
* @output:
* padvance ::
* The advance value. If scaling is performed (based on the value of
* `load_flags`), the advance value is in 16.16 format. Otherwise, it
* is in font units.
*
* If @FT_LOAD_VERTICAL_LAYOUT is set, this is the vertical advance
* corresponding to a vertical layout. Otherwise, it is the horizontal
* advance in a horizontal layout.
*
* @return:
* FreeType error code. 0 means success.
*
* @note:
* This function may fail if you use @FT_ADVANCE_FLAG_FAST_ONLY and if
* the corresponding font backend doesn't have a quick way to retrieve
* the advances.
*
* A scaled advance is returned in 16.16 format but isn't transformed by
* the affine transformation specified by @FT_Set_Transform.
*/
FT_EXPORT( FT_Error )
FT_Get_Advance( FT_Face face,
FT_UInt gindex,
FT_Int32 load_flags,
FT_Fixed *padvance );
/**************************************************************************
*
* @function:
* FT_Get_Advances
*
* @description:
* Retrieve the advance values of several glyph outlines in an @FT_Face.
*
* @input:
* face ::
* The source @FT_Face handle.
*
* start ::
* The first glyph index.
*
* count ::
* The number of advance values you want to retrieve.
*
* load_flags ::
* A set of bit flags similar to those used when calling
* @FT_Load_Glyph.
*
* @output:
* padvance ::
* The advance values. This array, to be provided by the caller, must
* contain at least `count` elements.
*
* If scaling is performed (based on the value of `load_flags`), the
* advance values are in 16.16 format. Otherwise, they are in font
* units.
*
* If @FT_LOAD_VERTICAL_LAYOUT is set, these are the vertical advances
* corresponding to a vertical layout. Otherwise, they are the
* horizontal advances in a horizontal layout.
*
* @return:
* FreeType error code. 0 means success.
*
* @note:
* This function may fail if you use @FT_ADVANCE_FLAG_FAST_ONLY and if
* the corresponding font backend doesn't have a quick way to retrieve
* the advances.
*
* Scaled advances are returned in 16.16 format but aren't transformed by
* the affine transformation specified by @FT_Set_Transform.
*/
FT_EXPORT( FT_Error )
FT_Get_Advances( FT_Face face,
FT_UInt start,
FT_UInt count,
FT_Int32 load_flags,
FT_Fixed *padvances );
/* */
FT_END_HEADER
#endif /* FTADVANC_H_ */
/* END */

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/****************************************************************************
*
* ftbbox.h
*
* FreeType exact bbox computation (specification).
*
* Copyright (C) 1996-2024 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.
*
*/
/**************************************************************************
*
* This component has a _single_ role: to compute exact outline bounding
* boxes.
*
* It is separated from the rest of the engine for various technical
* reasons. It may well be integrated in 'ftoutln' later.
*
*/
#ifndef FTBBOX_H_
#define FTBBOX_H_
#include <freetype/freetype.h>
#ifdef FREETYPE_H
#error "freetype.h of FreeType 1 has been loaded!"
#error "Please fix the directory search order for header files"
#error "so that freetype.h of FreeType 2 is found first."
#endif
FT_BEGIN_HEADER
/**************************************************************************
*
* @section:
* outline_processing
*
*/
/**************************************************************************
*
* @function:
* FT_Outline_Get_BBox
*
* @description:
* Compute the exact bounding box of an outline. This is slower than
* computing the control box. However, it uses an advanced algorithm
* that returns _very_ quickly when the two boxes coincide. Otherwise,
* the outline Bezier arcs are traversed to extract their extrema.
*
* @input:
* outline ::
* A pointer to the source outline.
*
* @output:
* abbox ::
* The outline's exact bounding box.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* If the font is tricky and the glyph has been loaded with
* @FT_LOAD_NO_SCALE, the resulting BBox is meaningless. To get
* reasonable values for the BBox it is necessary to load the glyph at a
* large ppem value (so that the hinting instructions can properly shift
* and scale the subglyphs), then extracting the BBox, which can be
* eventually converted back to font units.
*/
FT_EXPORT( FT_Error )
FT_Outline_Get_BBox( FT_Outline* outline,
FT_BBox *abbox );
/* */
FT_END_HEADER
#endif /* FTBBOX_H_ */
/* END */
/* Local Variables: */
/* coding: utf-8 */
/* End: */

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/****************************************************************************
*
* ftbdf.h
*
* FreeType API for accessing BDF-specific strings (specification).
*
* Copyright (C) 2002-2024 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.
*
*/
#ifndef FTBDF_H_
#define FTBDF_H_
#include <freetype/freetype.h>
#ifdef FREETYPE_H
#error "freetype.h of FreeType 1 has been loaded!"
#error "Please fix the directory search order for header files"
#error "so that freetype.h of FreeType 2 is found first."
#endif
FT_BEGIN_HEADER
/**************************************************************************
*
* @section:
* bdf_fonts
*
* @title:
* BDF and PCF Files
*
* @abstract:
* BDF and PCF specific API.
*
* @description:
* This section contains the declaration of functions specific to BDF and
* PCF fonts.
*
*/
/**************************************************************************
*
* @enum:
* BDF_PropertyType
*
* @description:
* A list of BDF property types.
*
* @values:
* BDF_PROPERTY_TYPE_NONE ::
* Value~0 is used to indicate a missing property.
*
* BDF_PROPERTY_TYPE_ATOM ::
* Property is a string atom.
*
* BDF_PROPERTY_TYPE_INTEGER ::
* Property is a 32-bit signed integer.
*
* BDF_PROPERTY_TYPE_CARDINAL ::
* Property is a 32-bit unsigned integer.
*/
typedef enum BDF_PropertyType_
{
BDF_PROPERTY_TYPE_NONE = 0,
BDF_PROPERTY_TYPE_ATOM = 1,
BDF_PROPERTY_TYPE_INTEGER = 2,
BDF_PROPERTY_TYPE_CARDINAL = 3
} BDF_PropertyType;
/**************************************************************************
*
* @type:
* BDF_Property
*
* @description:
* A handle to a @BDF_PropertyRec structure to model a given BDF/PCF
* property.
*/
typedef struct BDF_PropertyRec_* BDF_Property;
/**************************************************************************
*
* @struct:
* BDF_PropertyRec
*
* @description:
* This structure models a given BDF/PCF property.
*
* @fields:
* type ::
* The property type.
*
* u.atom ::
* The atom string, if type is @BDF_PROPERTY_TYPE_ATOM. May be
* `NULL`, indicating an empty string.
*
* u.integer ::
* A signed integer, if type is @BDF_PROPERTY_TYPE_INTEGER.
*
* u.cardinal ::
* An unsigned integer, if type is @BDF_PROPERTY_TYPE_CARDINAL.
*/
typedef struct BDF_PropertyRec_
{
BDF_PropertyType type;
union {
const char* atom;
FT_Int32 integer;
FT_UInt32 cardinal;
} u;
} BDF_PropertyRec;
/**************************************************************************
*
* @function:
* FT_Get_BDF_Charset_ID
*
* @description:
* Retrieve a BDF font character set identity, according to the BDF
* specification.
*
* @input:
* face ::
* A handle to the input face.
*
* @output:
* acharset_encoding ::
* Charset encoding, as a C~string, owned by the face.
*
* acharset_registry ::
* Charset registry, as a C~string, owned by the face.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* This function only works with BDF faces, returning an error otherwise.
*/
FT_EXPORT( FT_Error )
FT_Get_BDF_Charset_ID( FT_Face face,
const char* *acharset_encoding,
const char* *acharset_registry );
/**************************************************************************
*
* @function:
* FT_Get_BDF_Property
*
* @description:
* Retrieve a BDF property from a BDF or PCF font file.
*
* @input:
* face ::
* A handle to the input face.
*
* name ::
* The property name.
*
* @output:
* aproperty ::
* The property.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* This function works with BDF _and_ PCF fonts. It returns an error
* otherwise. It also returns an error if the property is not in the
* font.
*
* A 'property' is a either key-value pair within the STARTPROPERTIES
* ... ENDPROPERTIES block of a BDF font or a key-value pair from the
* `info->props` array within a `FontRec` structure of a PCF font.
*
* Integer properties are always stored as 'signed' within PCF fonts;
* consequently, @BDF_PROPERTY_TYPE_CARDINAL is a possible return value
* for BDF fonts only.
*
* In case of error, `aproperty->type` is always set to
* @BDF_PROPERTY_TYPE_NONE.
*/
FT_EXPORT( FT_Error )
FT_Get_BDF_Property( FT_Face face,
const char* prop_name,
BDF_PropertyRec *aproperty );
/* */
FT_END_HEADER
#endif /* FTBDF_H_ */
/* END */

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/****************************************************************************
*
* ftbitmap.h
*
* FreeType utility functions for bitmaps (specification).
*
* Copyright (C) 2004-2024 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.
*
*/
#ifndef FTBITMAP_H_
#define FTBITMAP_H_
#include <freetype/freetype.h>
#include <freetype/ftcolor.h>
#ifdef FREETYPE_H
#error "freetype.h of FreeType 1 has been loaded!"
#error "Please fix the directory search order for header files"
#error "so that freetype.h of FreeType 2 is found first."
#endif
FT_BEGIN_HEADER
/**************************************************************************
*
* @section:
* bitmap_handling
*
* @title:
* Bitmap Handling
*
* @abstract:
* Handling FT_Bitmap objects.
*
* @description:
* This section contains functions for handling @FT_Bitmap objects,
* automatically adjusting the target's bitmap buffer size as needed.
*
* Note that none of the functions changes the bitmap's 'flow' (as
* indicated by the sign of the `pitch` field in @FT_Bitmap).
*
* To set the flow, assign an appropriate positive or negative value to
* the `pitch` field of the target @FT_Bitmap object after calling
* @FT_Bitmap_Init but before calling any of the other functions
* described here.
*/
/**************************************************************************
*
* @function:
* FT_Bitmap_Init
*
* @description:
* Initialize a pointer to an @FT_Bitmap structure.
*
* @inout:
* abitmap ::
* A pointer to the bitmap structure.
*
* @note:
* A deprecated name for the same function is `FT_Bitmap_New`.
*/
FT_EXPORT( void )
FT_Bitmap_Init( FT_Bitmap *abitmap );
/* deprecated */
FT_EXPORT( void )
FT_Bitmap_New( FT_Bitmap *abitmap );
/**************************************************************************
*
* @function:
* FT_Bitmap_Copy
*
* @description:
* Copy a bitmap into another one.
*
* @input:
* library ::
* A handle to a library object.
*
* source ::
* A handle to the source bitmap.
*
* @output:
* target ::
* A handle to the target bitmap.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* `source->buffer` and `target->buffer` must neither be equal nor
* overlap.
*/
FT_EXPORT( FT_Error )
FT_Bitmap_Copy( FT_Library library,
const FT_Bitmap *source,
FT_Bitmap *target );
/**************************************************************************
*
* @function:
* FT_Bitmap_Embolden
*
* @description:
* Embolden a bitmap. The new bitmap will be about `xStrength` pixels
* wider and `yStrength` pixels higher. The left and bottom borders are
* kept unchanged.
*
* @input:
* library ::
* A handle to a library object.
*
* xStrength ::
* How strong the glyph is emboldened horizontally. Expressed in 26.6
* pixel format.
*
* yStrength ::
* How strong the glyph is emboldened vertically. Expressed in 26.6
* pixel format.
*
* @inout:
* bitmap ::
* A handle to the target bitmap.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* The current implementation restricts `xStrength` to be less than or
* equal to~8 if bitmap is of pixel_mode @FT_PIXEL_MODE_MONO.
*
* If you want to embolden the bitmap owned by a @FT_GlyphSlotRec, you
* should call @FT_GlyphSlot_Own_Bitmap on the slot first.
*
* Bitmaps in @FT_PIXEL_MODE_GRAY2 and @FT_PIXEL_MODE_GRAY@ format are
* converted to @FT_PIXEL_MODE_GRAY format (i.e., 8bpp).
*/
FT_EXPORT( FT_Error )
FT_Bitmap_Embolden( FT_Library library,
FT_Bitmap* bitmap,
FT_Pos xStrength,
FT_Pos yStrength );
/**************************************************************************
*
* @function:
* FT_Bitmap_Convert
*
* @description:
* Convert a bitmap object with depth 1bpp, 2bpp, 4bpp, 8bpp or 32bpp to
* a bitmap object with depth 8bpp, making the number of used bytes per
* line (a.k.a. the 'pitch') a multiple of `alignment`.
*
* @input:
* library ::
* A handle to a library object.
*
* source ::
* The source bitmap.
*
* alignment ::
* The pitch of the bitmap is a multiple of this argument. Common
* values are 1, 2, or 4.
*
* @output:
* target ::
* The target bitmap.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* It is possible to call @FT_Bitmap_Convert multiple times without
* calling @FT_Bitmap_Done (the memory is simply reallocated).
*
* Use @FT_Bitmap_Done to finally remove the bitmap object.
*
* The `library` argument is taken to have access to FreeType's memory
* handling functions.
*
* `source->buffer` and `target->buffer` must neither be equal nor
* overlap.
*/
FT_EXPORT( FT_Error )
FT_Bitmap_Convert( FT_Library library,
const FT_Bitmap *source,
FT_Bitmap *target,
FT_Int alignment );
/**************************************************************************
*
* @function:
* FT_Bitmap_Blend
*
* @description:
* Blend a bitmap onto another bitmap, using a given color.
*
* @input:
* library ::
* A handle to a library object.
*
* source ::
* The source bitmap, which can have any @FT_Pixel_Mode format.
*
* source_offset ::
* The offset vector to the upper left corner of the source bitmap in
* 26.6 pixel format. It should represent an integer offset; the
* function will set the lowest six bits to zero to enforce that.
*
* color ::
* The color used to draw `source` onto `target`.
*
* @inout:
* target ::
* A handle to an `FT_Bitmap` object. It should be either initialized
* as empty with a call to @FT_Bitmap_Init, or it should be of type
* @FT_PIXEL_MODE_BGRA.
*
* atarget_offset ::
* The offset vector to the upper left corner of the target bitmap in
* 26.6 pixel format. It should represent an integer offset; the
* function will set the lowest six bits to zero to enforce that.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* This function doesn't perform clipping.
*
* The bitmap in `target` gets allocated or reallocated as needed; the
* vector `atarget_offset` is updated accordingly.
*
* In case of allocation or reallocation, the bitmap's pitch is set to
* `4 * width`. Both `source` and `target` must have the same bitmap
* flow (as indicated by the sign of the `pitch` field).
*
* `source->buffer` and `target->buffer` must neither be equal nor
* overlap.
*
* @since:
* 2.10
*/
FT_EXPORT( FT_Error )
FT_Bitmap_Blend( FT_Library library,
const FT_Bitmap* source,
const FT_Vector source_offset,
FT_Bitmap* target,
FT_Vector *atarget_offset,
FT_Color color );
/**************************************************************************
*
* @function:
* FT_GlyphSlot_Own_Bitmap
*
* @description:
* Make sure that a glyph slot owns `slot->bitmap`.
*
* @input:
* slot ::
* The glyph slot.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* This function is to be used in combination with @FT_Bitmap_Embolden.
*/
FT_EXPORT( FT_Error )
FT_GlyphSlot_Own_Bitmap( FT_GlyphSlot slot );
/**************************************************************************
*
* @function:
* FT_Bitmap_Done
*
* @description:
* Destroy a bitmap object initialized with @FT_Bitmap_Init.
*
* @input:
* library ::
* A handle to a library object.
*
* bitmap ::
* The bitmap object to be freed.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* The `library` argument is taken to have access to FreeType's memory
* handling functions.
*/
FT_EXPORT( FT_Error )
FT_Bitmap_Done( FT_Library library,
FT_Bitmap *bitmap );
/* */
FT_END_HEADER
#endif /* FTBITMAP_H_ */
/* END */

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/****************************************************************************
*
* ftbzip2.h
*
* Bzip2-compressed stream support.
*
* Copyright (C) 2010-2024 by
* Joel Klinghed.
*
* 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.
*
*/
#ifndef FTBZIP2_H_
#define FTBZIP2_H_
#include <freetype/freetype.h>
#ifdef FREETYPE_H
#error "freetype.h of FreeType 1 has been loaded!"
#error "Please fix the directory search order for header files"
#error "so that freetype.h of FreeType 2 is found first."
#endif
FT_BEGIN_HEADER
/**************************************************************************
*
* @section:
* bzip2
*
* @title:
* BZIP2 Streams
*
* @abstract:
* Using bzip2-compressed font files.
*
* @description:
* In certain builds of the library, bzip2 compression recognition is
* automatically handled when calling @FT_New_Face or @FT_Open_Face.
* This means that if no font driver is capable of handling the raw
* compressed file, the library will try to open a bzip2 compressed
* stream from it and re-open the face with it.
*
* The stream implementation is very basic and resets the decompression
* process each time seeking backwards is needed within the stream,
* which significantly undermines the performance.
*
* This section contains the declaration of Bzip2-specific functions.
*
*/
/**************************************************************************
*
* @function:
* FT_Stream_OpenBzip2
*
* @description:
* Open a new stream to parse bzip2-compressed font files. This is
* mainly used to support the compressed `*.pcf.bz2` fonts that come with
* XFree86.
*
* @input:
* stream ::
* The target embedding stream.
*
* source ::
* The source stream.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* The source stream must be opened _before_ calling this function.
*
* Calling the internal function `FT_Stream_Close` on the new stream will
* **not** call `FT_Stream_Close` on the source stream. None of the
* stream objects will be released to the heap.
*
* This function may return `FT_Err_Unimplemented_Feature` if your build
* of FreeType was not compiled with bzip2 support.
*/
FT_EXPORT( FT_Error )
FT_Stream_OpenBzip2( FT_Stream stream,
FT_Stream source );
/* */
FT_END_HEADER
#endif /* FTBZIP2_H_ */
/* END */

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/****************************************************************************
*
* This file defines the structure of the FreeType reference.
* It is used by the python script that generates the HTML files.
*
*/
/**************************************************************************
*
* @chapter:
* general_remarks
*
* @title:
* General Remarks
*
* @sections:
* preamble
* header_inclusion
* user_allocation
*
*/
/**************************************************************************
*
* @chapter:
* core_api
*
* @title:
* Core API
*
* @sections:
* basic_types
* library_setup
* face_creation
* font_testing_macros
* sizing_and_scaling
* glyph_retrieval
* character_mapping
* information_retrieval
* other_api_data
*
*/
/**************************************************************************
*
* @chapter:
* extended_api
*
* @title:
* Extended API
*
* @sections:
* glyph_variants
* color_management
* layer_management
* glyph_management
* mac_specific
* sizes_management
* header_file_macros
*
*/
/**************************************************************************
*
* @chapter:
* format_specific
*
* @title:
* Format-Specific API
*
* @sections:
* multiple_masters
* truetype_tables
* type1_tables
* sfnt_names
* bdf_fonts
* cid_fonts
* pfr_fonts
* winfnt_fonts
* svg_fonts
* font_formats
* gasp_table
*
*/
/**************************************************************************
*
* @chapter:
* module_specific
*
* @title:
* Controlling FreeType Modules
*
* @sections:
* auto_hinter
* cff_driver
* t1_cid_driver
* tt_driver
* pcf_driver
* ot_svg_driver
* properties
* parameter_tags
* lcd_rendering
*
*/
/**************************************************************************
*
* @chapter:
* cache_subsystem
*
* @title:
* Cache Sub-System
*
* @sections:
* cache_subsystem
*
*/
/**************************************************************************
*
* @chapter:
* support_api
*
* @title:
* Support API
*
* @sections:
* computations
* list_processing
* outline_processing
* quick_advance
* bitmap_handling
* raster
* glyph_stroker
* system_interface
* module_management
* gzip
* lzw
* bzip2
* debugging_apis
*
*/
/**************************************************************************
*
* @chapter:
* error_codes
*
* @title:
* Error Codes
*
* @sections:
* error_enumerations
* error_code_values
*
*/
/* END */

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/****************************************************************************
*
* ftcid.h
*
* FreeType API for accessing CID font information (specification).
*
* Copyright (C) 2007-2024 by
* Dereg Clegg and Michael Toftdal.
*
* 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.
*
*/
#ifndef FTCID_H_
#define FTCID_H_
#include <freetype/freetype.h>
#ifdef FREETYPE_H
#error "freetype.h of FreeType 1 has been loaded!"
#error "Please fix the directory search order for header files"
#error "so that freetype.h of FreeType 2 is found first."
#endif
FT_BEGIN_HEADER
/**************************************************************************
*
* @section:
* cid_fonts
*
* @title:
* CID Fonts
*
* @abstract:
* CID-keyed font-specific API.
*
* @description:
* This section contains the declaration of CID-keyed font-specific
* functions.
*
*/
/**************************************************************************
*
* @function:
* FT_Get_CID_Registry_Ordering_Supplement
*
* @description:
* Retrieve the Registry/Ordering/Supplement triple (also known as the
* "R/O/S") from a CID-keyed font.
*
* @input:
* face ::
* A handle to the input face.
*
* @output:
* registry ::
* The registry, as a C~string, owned by the face.
*
* ordering ::
* The ordering, as a C~string, owned by the face.
*
* supplement ::
* The supplement.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* This function only works with CID faces, returning an error
* otherwise.
*
* @since:
* 2.3.6
*/
FT_EXPORT( FT_Error )
FT_Get_CID_Registry_Ordering_Supplement( FT_Face face,
const char* *registry,
const char* *ordering,
FT_Int *supplement );
/**************************************************************************
*
* @function:
* FT_Get_CID_Is_Internally_CID_Keyed
*
* @description:
* Retrieve the type of the input face, CID keyed or not. In contrast
* to the @FT_IS_CID_KEYED macro this function returns successfully also
* for CID-keyed fonts in an SFNT wrapper.
*
* @input:
* face ::
* A handle to the input face.
*
* @output:
* is_cid ::
* The type of the face as an @FT_Bool.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* This function only works with CID faces and OpenType fonts, returning
* an error otherwise.
*
* @since:
* 2.3.9
*/
FT_EXPORT( FT_Error )
FT_Get_CID_Is_Internally_CID_Keyed( FT_Face face,
FT_Bool *is_cid );
/**************************************************************************
*
* @function:
* FT_Get_CID_From_Glyph_Index
*
* @description:
* Retrieve the CID of the input glyph index.
*
* @input:
* face ::
* A handle to the input face.
*
* glyph_index ::
* The input glyph index.
*
* @output:
* cid ::
* The CID as an @FT_UInt.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* This function only works with CID faces and OpenType fonts, returning
* an error otherwise.
*
* @since:
* 2.3.9
*/
FT_EXPORT( FT_Error )
FT_Get_CID_From_Glyph_Index( FT_Face face,
FT_UInt glyph_index,
FT_UInt *cid );
/* */
FT_END_HEADER
#endif /* FTCID_H_ */
/* END */

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/****************************************************************************
*
* fterrdef.h
*
* FreeType error codes (specification).
*
* Copyright (C) 2002-2024 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.
*
*/
/**************************************************************************
*
* @section:
* error_code_values
*
* @title:
* Error Code Values
*
* @abstract:
* All possible error codes returned by FreeType functions.
*
* @description:
* The list below is taken verbatim from the file `fterrdef.h` (loaded
* automatically by including `FT_FREETYPE_H`). The first argument of the
* `FT_ERROR_DEF_` macro is the error label; by default, the prefix
* `FT_Err_` gets added so that you get error names like
* `FT_Err_Cannot_Open_Resource`. The second argument is the error code,
* and the last argument an error string, which is not used by FreeType.
*
* Within your application you should **only** use error names and
* **never** its numeric values! The latter might (and actually do)
* change in forthcoming FreeType versions.
*
* Macro `FT_NOERRORDEF_` defines `FT_Err_Ok`, which is always zero. See
* the 'Error Enumerations' subsection how to automatically generate a
* list of error strings.
*
*/
/**************************************************************************
*
* @enum:
* FT_Err_XXX
*
*/
/* generic errors */
FT_NOERRORDEF_( Ok, 0x00,
"no error" )
FT_ERRORDEF_( Cannot_Open_Resource, 0x01,
"cannot open resource" )
FT_ERRORDEF_( Unknown_File_Format, 0x02,
"unknown file format" )
FT_ERRORDEF_( Invalid_File_Format, 0x03,
"broken file" )
FT_ERRORDEF_( Invalid_Version, 0x04,
"invalid FreeType version" )
FT_ERRORDEF_( Lower_Module_Version, 0x05,
"module version is too low" )
FT_ERRORDEF_( Invalid_Argument, 0x06,
"invalid argument" )
FT_ERRORDEF_( Unimplemented_Feature, 0x07,
"unimplemented feature" )
FT_ERRORDEF_( Invalid_Table, 0x08,
"broken table" )
FT_ERRORDEF_( Invalid_Offset, 0x09,
"broken offset within table" )
FT_ERRORDEF_( Array_Too_Large, 0x0A,
"array allocation size too large" )
FT_ERRORDEF_( Missing_Module, 0x0B,
"missing module" )
FT_ERRORDEF_( Missing_Property, 0x0C,
"missing property" )
/* glyph/character errors */
FT_ERRORDEF_( Invalid_Glyph_Index, 0x10,
"invalid glyph index" )
FT_ERRORDEF_( Invalid_Character_Code, 0x11,
"invalid character code" )
FT_ERRORDEF_( Invalid_Glyph_Format, 0x12,
"unsupported glyph image format" )
FT_ERRORDEF_( Cannot_Render_Glyph, 0x13,
"cannot render this glyph format" )
FT_ERRORDEF_( Invalid_Outline, 0x14,
"invalid outline" )
FT_ERRORDEF_( Invalid_Composite, 0x15,
"invalid composite glyph" )
FT_ERRORDEF_( Too_Many_Hints, 0x16,
"too many hints" )
FT_ERRORDEF_( Invalid_Pixel_Size, 0x17,
"invalid pixel size" )
FT_ERRORDEF_( Invalid_SVG_Document, 0x18,
"invalid SVG document" )
/* handle errors */
FT_ERRORDEF_( Invalid_Handle, 0x20,
"invalid object handle" )
FT_ERRORDEF_( Invalid_Library_Handle, 0x21,
"invalid library handle" )
FT_ERRORDEF_( Invalid_Driver_Handle, 0x22,
"invalid module handle" )
FT_ERRORDEF_( Invalid_Face_Handle, 0x23,
"invalid face handle" )
FT_ERRORDEF_( Invalid_Size_Handle, 0x24,
"invalid size handle" )
FT_ERRORDEF_( Invalid_Slot_Handle, 0x25,
"invalid glyph slot handle" )
FT_ERRORDEF_( Invalid_CharMap_Handle, 0x26,
"invalid charmap handle" )
FT_ERRORDEF_( Invalid_Cache_Handle, 0x27,
"invalid cache manager handle" )
FT_ERRORDEF_( Invalid_Stream_Handle, 0x28,
"invalid stream handle" )
/* driver errors */
FT_ERRORDEF_( Too_Many_Drivers, 0x30,
"too many modules" )
FT_ERRORDEF_( Too_Many_Extensions, 0x31,
"too many extensions" )
/* memory errors */
FT_ERRORDEF_( Out_Of_Memory, 0x40,
"out of memory" )
FT_ERRORDEF_( Unlisted_Object, 0x41,
"unlisted object" )
/* stream errors */
FT_ERRORDEF_( Cannot_Open_Stream, 0x51,
"cannot open stream" )
FT_ERRORDEF_( Invalid_Stream_Seek, 0x52,
"invalid stream seek" )
FT_ERRORDEF_( Invalid_Stream_Skip, 0x53,
"invalid stream skip" )
FT_ERRORDEF_( Invalid_Stream_Read, 0x54,
"invalid stream read" )
FT_ERRORDEF_( Invalid_Stream_Operation, 0x55,
"invalid stream operation" )
FT_ERRORDEF_( Invalid_Frame_Operation, 0x56,
"invalid frame operation" )
FT_ERRORDEF_( Nested_Frame_Access, 0x57,
"nested frame access" )
FT_ERRORDEF_( Invalid_Frame_Read, 0x58,
"invalid frame read" )
/* raster errors */
FT_ERRORDEF_( Raster_Uninitialized, 0x60,
"raster uninitialized" )
FT_ERRORDEF_( Raster_Corrupted, 0x61,
"raster corrupted" )
FT_ERRORDEF_( Raster_Overflow, 0x62,
"raster overflow" )
FT_ERRORDEF_( Raster_Negative_Height, 0x63,
"negative height while rastering" )
/* cache errors */
FT_ERRORDEF_( Too_Many_Caches, 0x70,
"too many registered caches" )
/* TrueType and SFNT errors */
FT_ERRORDEF_( Invalid_Opcode, 0x80,
"invalid opcode" )
FT_ERRORDEF_( Too_Few_Arguments, 0x81,
"too few arguments" )
FT_ERRORDEF_( Stack_Overflow, 0x82,
"stack overflow" )
FT_ERRORDEF_( Code_Overflow, 0x83,
"code overflow" )
FT_ERRORDEF_( Bad_Argument, 0x84,
"bad argument" )
FT_ERRORDEF_( Divide_By_Zero, 0x85,
"division by zero" )
FT_ERRORDEF_( Invalid_Reference, 0x86,
"invalid reference" )
FT_ERRORDEF_( Debug_OpCode, 0x87,
"found debug opcode" )
FT_ERRORDEF_( ENDF_In_Exec_Stream, 0x88,
"found ENDF opcode in execution stream" )
FT_ERRORDEF_( Nested_DEFS, 0x89,
"nested DEFS" )
FT_ERRORDEF_( Invalid_CodeRange, 0x8A,
"invalid code range" )
FT_ERRORDEF_( Execution_Too_Long, 0x8B,
"execution context too long" )
FT_ERRORDEF_( Too_Many_Function_Defs, 0x8C,
"too many function definitions" )
FT_ERRORDEF_( Too_Many_Instruction_Defs, 0x8D,
"too many instruction definitions" )
FT_ERRORDEF_( Table_Missing, 0x8E,
"SFNT font table missing" )
FT_ERRORDEF_( Horiz_Header_Missing, 0x8F,
"horizontal header (hhea) table missing" )
FT_ERRORDEF_( Locations_Missing, 0x90,
"locations (loca) table missing" )
FT_ERRORDEF_( Name_Table_Missing, 0x91,
"name table missing" )
FT_ERRORDEF_( CMap_Table_Missing, 0x92,
"character map (cmap) table missing" )
FT_ERRORDEF_( Hmtx_Table_Missing, 0x93,
"horizontal metrics (hmtx) table missing" )
FT_ERRORDEF_( Post_Table_Missing, 0x94,
"PostScript (post) table missing" )
FT_ERRORDEF_( Invalid_Horiz_Metrics, 0x95,
"invalid horizontal metrics" )
FT_ERRORDEF_( Invalid_CharMap_Format, 0x96,
"invalid character map (cmap) format" )
FT_ERRORDEF_( Invalid_PPem, 0x97,
"invalid ppem value" )
FT_ERRORDEF_( Invalid_Vert_Metrics, 0x98,
"invalid vertical metrics" )
FT_ERRORDEF_( Could_Not_Find_Context, 0x99,
"could not find context" )
FT_ERRORDEF_( Invalid_Post_Table_Format, 0x9A,
"invalid PostScript (post) table format" )
FT_ERRORDEF_( Invalid_Post_Table, 0x9B,
"invalid PostScript (post) table" )
FT_ERRORDEF_( DEF_In_Glyf_Bytecode, 0x9C,
"found FDEF or IDEF opcode in glyf bytecode" )
FT_ERRORDEF_( Missing_Bitmap, 0x9D,
"missing bitmap in strike" )
FT_ERRORDEF_( Missing_SVG_Hooks, 0x9E,
"SVG hooks have not been set" )
/* CFF, CID, and Type 1 errors */
FT_ERRORDEF_( Syntax_Error, 0xA0,
"opcode syntax error" )
FT_ERRORDEF_( Stack_Underflow, 0xA1,
"argument stack underflow" )
FT_ERRORDEF_( Ignore, 0xA2,
"ignore" )
FT_ERRORDEF_( No_Unicode_Glyph_Name, 0xA3,
"no Unicode glyph name found" )
FT_ERRORDEF_( Glyph_Too_Big, 0xA4,
"glyph too big for hinting" )
/* BDF errors */
FT_ERRORDEF_( Missing_Startfont_Field, 0xB0,
"`STARTFONT' field missing" )
FT_ERRORDEF_( Missing_Font_Field, 0xB1,
"`FONT' field missing" )
FT_ERRORDEF_( Missing_Size_Field, 0xB2,
"`SIZE' field missing" )
FT_ERRORDEF_( Missing_Fontboundingbox_Field, 0xB3,
"`FONTBOUNDINGBOX' field missing" )
FT_ERRORDEF_( Missing_Chars_Field, 0xB4,
"`CHARS' field missing" )
FT_ERRORDEF_( Missing_Startchar_Field, 0xB5,
"`STARTCHAR' field missing" )
FT_ERRORDEF_( Missing_Encoding_Field, 0xB6,
"`ENCODING' field missing" )
FT_ERRORDEF_( Missing_Bbx_Field, 0xB7,
"`BBX' field missing" )
FT_ERRORDEF_( Bbx_Too_Big, 0xB8,
"`BBX' too big" )
FT_ERRORDEF_( Corrupted_Font_Header, 0xB9,
"Font header corrupted or missing fields" )
FT_ERRORDEF_( Corrupted_Font_Glyphs, 0xBA,
"Font glyphs corrupted or missing fields" )
/* */
/* END */

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/****************************************************************************
*
* fterrors.h
*
* FreeType error code handling (specification).
*
* Copyright (C) 1996-2024 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.
*
*/
/**************************************************************************
*
* @section:
* error_enumerations
*
* @title:
* Error Enumerations
*
* @abstract:
* How to handle errors and error strings.
*
* @description:
* The header file `fterrors.h` (which is automatically included by
* `freetype.h`) defines the handling of FreeType's enumeration
* constants. It can also be used to generate error message strings
* with a small macro trick explained below.
*
* **Error Formats**
*
* The configuration macro `FT_CONFIG_OPTION_USE_MODULE_ERRORS` can be
* defined in `ftoption.h` in order to make the higher byte indicate the
* module where the error has happened (this is not compatible with
* standard builds of FreeType~2, however). See the file `ftmoderr.h`
* for more details.
*
* **Error Message Strings**
*
* Error definitions are set up with special macros that allow client
* applications to build a table of error message strings. The strings
* are not included in a normal build of FreeType~2 to save space (most
* client applications do not use them).
*
* To do so, you have to define the following macros before including
* this file.
*
* ```
* FT_ERROR_START_LIST
* ```
*
* This macro is called before anything else to define the start of the
* error list. It is followed by several `FT_ERROR_DEF` calls.
*
* ```
* FT_ERROR_DEF( e, v, s )
* ```
*
* This macro is called to define one single error. 'e' is the error
* code identifier (e.g., `Invalid_Argument`), 'v' is the error's
* numerical value, and 's' is the corresponding error string.
*
* ```
* FT_ERROR_END_LIST
* ```
*
* This macro ends the list.
*
* Additionally, you have to undefine `FTERRORS_H_` before #including
* this file.
*
* Here is a simple example.
*
* ```
* #undef FTERRORS_H_
* #define FT_ERRORDEF( e, v, s ) { e, s },
* #define FT_ERROR_START_LIST {
* #define FT_ERROR_END_LIST { 0, NULL } };
*
* const struct
* {
* int err_code;
* const char* err_msg;
* } ft_errors[] =
*
* #include <freetype/fterrors.h>
* ```
*
* An alternative to using an array is a switch statement.
*
* ```
* #undef FTERRORS_H_
* #define FT_ERROR_START_LIST switch ( error_code ) {
* #define FT_ERRORDEF( e, v, s ) case v: return s;
* #define FT_ERROR_END_LIST }
* ```
*
* If you use `FT_CONFIG_OPTION_USE_MODULE_ERRORS`, `error_code` should
* be replaced with `FT_ERROR_BASE(error_code)` in the last example.
*/
/* */
/* In previous FreeType versions we used `__FTERRORS_H__`. However, */
/* using two successive underscores in a non-system symbol name */
/* violates the C (and C++) standard, so it was changed to the */
/* current form. In spite of this, we have to make */
/* */
/* ``` */
/* #undefine __FTERRORS_H__ */
/* ``` */
/* */
/* work for backward compatibility. */
/* */
#if !( defined( FTERRORS_H_ ) && defined ( __FTERRORS_H__ ) )
#define FTERRORS_H_
#define __FTERRORS_H__
/* include module base error codes */
#include <freetype/ftmoderr.h>
/*******************************************************************/
/*******************************************************************/
/***** *****/
/***** SETUP MACROS *****/
/***** *****/
/*******************************************************************/
/*******************************************************************/
#undef FT_NEED_EXTERN_C
/* FT_ERR_PREFIX is used as a prefix for error identifiers. */
/* By default, we use `FT_Err_`. */
/* */
#ifndef FT_ERR_PREFIX
#define FT_ERR_PREFIX FT_Err_
#endif
/* FT_ERR_BASE is used as the base for module-specific errors. */
/* */
#ifdef FT_CONFIG_OPTION_USE_MODULE_ERRORS
#ifndef FT_ERR_BASE
#define FT_ERR_BASE FT_Mod_Err_Base
#endif
#else
#undef FT_ERR_BASE
#define FT_ERR_BASE 0
#endif /* FT_CONFIG_OPTION_USE_MODULE_ERRORS */
/* If FT_ERRORDEF is not defined, we need to define a simple */
/* enumeration type. */
/* */
#ifndef FT_ERRORDEF
#define FT_INCLUDE_ERR_PROTOS
#define FT_ERRORDEF( e, v, s ) e = v,
#define FT_ERROR_START_LIST enum {
#define FT_ERROR_END_LIST FT_ERR_CAT( FT_ERR_PREFIX, Max ) };
#ifdef __cplusplus
#define FT_NEED_EXTERN_C
extern "C" {
#endif
#endif /* !FT_ERRORDEF */
/* this macro is used to define an error */
#define FT_ERRORDEF_( e, v, s ) \
FT_ERRORDEF( FT_ERR_CAT( FT_ERR_PREFIX, e ), v + FT_ERR_BASE, s )
/* this is only used for <module>_Err_Ok, which must be 0! */
#define FT_NOERRORDEF_( e, v, s ) \
FT_ERRORDEF( FT_ERR_CAT( FT_ERR_PREFIX, e ), v, s )
#ifdef FT_ERROR_START_LIST
FT_ERROR_START_LIST
#endif
/* now include the error codes */
#include <freetype/fterrdef.h>
#ifdef FT_ERROR_END_LIST
FT_ERROR_END_LIST
#endif
/*******************************************************************/
/*******************************************************************/
/***** *****/
/***** SIMPLE CLEANUP *****/
/***** *****/
/*******************************************************************/
/*******************************************************************/
#ifdef FT_NEED_EXTERN_C
}
#endif
#undef FT_ERROR_START_LIST
#undef FT_ERROR_END_LIST
#undef FT_ERRORDEF
#undef FT_ERRORDEF_
#undef FT_NOERRORDEF_
#undef FT_NEED_EXTERN_C
#undef FT_ERR_BASE
/* FT_ERR_PREFIX is needed internally */
#ifndef FT2_BUILD_LIBRARY
#undef FT_ERR_PREFIX
#endif
/* FT_INCLUDE_ERR_PROTOS: Control whether function prototypes should be */
/* included with */
/* */
/* #include <freetype/fterrors.h> */
/* */
/* This is only true where `FT_ERRORDEF` is */
/* undefined. */
/* */
/* FT_ERR_PROTOS_DEFINED: Actual multiple-inclusion protection of */
/* `fterrors.h`. */
#ifdef FT_INCLUDE_ERR_PROTOS
#undef FT_INCLUDE_ERR_PROTOS
#ifndef FT_ERR_PROTOS_DEFINED
#define FT_ERR_PROTOS_DEFINED
FT_BEGIN_HEADER
/**************************************************************************
*
* @function:
* FT_Error_String
*
* @description:
* Retrieve the description of a valid FreeType error code.
*
* @input:
* error_code ::
* A valid FreeType error code.
*
* @return:
* A C~string or `NULL`, if any error occurred.
*
* @note:
* FreeType has to be compiled with `FT_CONFIG_OPTION_ERROR_STRINGS` or
* `FT_DEBUG_LEVEL_ERROR` to get meaningful descriptions.
* 'error_string' will be `NULL` otherwise.
*
* Module identification will be ignored:
*
* ```c
* strcmp( FT_Error_String( FT_Err_Unknown_File_Format ),
* FT_Error_String( BDF_Err_Unknown_File_Format ) ) == 0;
* ```
*/
FT_EXPORT( const char* )
FT_Error_String( FT_Error error_code );
/* */
FT_END_HEADER
#endif /* FT_ERR_PROTOS_DEFINED */
#endif /* FT_INCLUDE_ERR_PROTOS */
#endif /* !(FTERRORS_H_ && __FTERRORS_H__) */
/* END */

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/****************************************************************************
*
* ftfntfmt.h
*
* Support functions for font formats.
*
* Copyright (C) 2002-2024 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.
*
*/
#ifndef FTFNTFMT_H_
#define FTFNTFMT_H_
#include <freetype/freetype.h>
#ifdef FREETYPE_H
#error "freetype.h of FreeType 1 has been loaded!"
#error "Please fix the directory search order for header files"
#error "so that freetype.h of FreeType 2 is found first."
#endif
FT_BEGIN_HEADER
/**************************************************************************
*
* @section:
* font_formats
*
* @title:
* Font Formats
*
* @abstract:
* Getting the font format.
*
* @description:
* The single function in this section can be used to get the font format.
* Note that this information is not needed normally; however, there are
* special cases (like in PDF devices) where it is important to
* differentiate, in spite of FreeType's uniform API.
*
*/
/**************************************************************************
*
* @function:
* FT_Get_Font_Format
*
* @description:
* Return a string describing the format of a given face. Possible values
* are 'TrueType', 'Type~1', 'BDF', 'PCF', 'Type~42', 'CID~Type~1', 'CFF',
* 'PFR', and 'Windows~FNT'.
*
* The return value is suitable to be used as an X11 FONT_PROPERTY.
*
* @input:
* face ::
* Input face handle.
*
* @return:
* Font format string. `NULL` in case of error.
*
* @note:
* A deprecated name for the same function is `FT_Get_X11_Font_Format`.
*/
FT_EXPORT( const char* )
FT_Get_Font_Format( FT_Face face );
/* deprecated */
FT_EXPORT( const char* )
FT_Get_X11_Font_Format( FT_Face face );
/* */
FT_END_HEADER
#endif /* FTFNTFMT_H_ */
/* END */

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/****************************************************************************
*
* ftgasp.h
*
* Access of TrueType's 'gasp' table (specification).
*
* Copyright (C) 2007-2024 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.
*
*/
#ifndef FTGASP_H_
#define FTGASP_H_
#include <freetype/freetype.h>
#ifdef FREETYPE_H
#error "freetype.h of FreeType 1 has been loaded!"
#error "Please fix the directory search order for header files"
#error "so that freetype.h of FreeType 2 is found first."
#endif
FT_BEGIN_HEADER
/**************************************************************************
*
* @section:
* gasp_table
*
* @title:
* Gasp Table
*
* @abstract:
* Retrieving TrueType 'gasp' table entries.
*
* @description:
* The function @FT_Get_Gasp can be used to query a TrueType or OpenType
* font for specific entries in its 'gasp' table, if any. This is mainly
* useful when implementing native TrueType hinting with the bytecode
* interpreter to duplicate the Windows text rendering results.
*/
/**************************************************************************
*
* @enum:
* FT_GASP_XXX
*
* @description:
* A list of values and/or bit-flags returned by the @FT_Get_Gasp
* function.
*
* @values:
* FT_GASP_NO_TABLE ::
* This special value means that there is no GASP table in this face.
* It is up to the client to decide what to do.
*
* FT_GASP_DO_GRIDFIT ::
* Grid-fitting and hinting should be performed at the specified ppem.
* This **really** means TrueType bytecode interpretation. If this bit
* is not set, no hinting gets applied.
*
* FT_GASP_DO_GRAY ::
* Anti-aliased rendering should be performed at the specified ppem.
* If not set, do monochrome rendering.
*
* FT_GASP_SYMMETRIC_SMOOTHING ::
* If set, smoothing along multiple axes must be used with ClearType.
*
* FT_GASP_SYMMETRIC_GRIDFIT ::
* Grid-fitting must be used with ClearType's symmetric smoothing.
*
* @note:
* The bit-flags `FT_GASP_DO_GRIDFIT` and `FT_GASP_DO_GRAY` are to be
* used for standard font rasterization only. Independently of that,
* `FT_GASP_SYMMETRIC_SMOOTHING` and `FT_GASP_SYMMETRIC_GRIDFIT` are to
* be used if ClearType is enabled (and `FT_GASP_DO_GRIDFIT` and
* `FT_GASP_DO_GRAY` are consequently ignored).
*
* 'ClearType' is Microsoft's implementation of LCD rendering, partly
* protected by patents.
*
* @since:
* 2.3.0
*/
#define FT_GASP_NO_TABLE -1
#define FT_GASP_DO_GRIDFIT 0x01
#define FT_GASP_DO_GRAY 0x02
#define FT_GASP_SYMMETRIC_GRIDFIT 0x04
#define FT_GASP_SYMMETRIC_SMOOTHING 0x08
/**************************************************************************
*
* @function:
* FT_Get_Gasp
*
* @description:
* For a TrueType or OpenType font file, return the rasterizer behaviour
* flags from the font's 'gasp' table corresponding to a given character
* pixel size.
*
* @input:
* face ::
* The source face handle.
*
* ppem ::
* The vertical character pixel size.
*
* @return:
* Bit flags (see @FT_GASP_XXX), or @FT_GASP_NO_TABLE if there is no
* 'gasp' table in the face.
*
* @note:
* If you want to use the MM functionality of OpenType variation fonts
* (i.e., using @FT_Set_Var_Design_Coordinates and friends), call this
* function **after** setting an instance since the return values can
* change.
*
* @since:
* 2.3.0
*/
FT_EXPORT( FT_Int )
FT_Get_Gasp( FT_Face face,
FT_UInt ppem );
/* */
FT_END_HEADER
#endif /* FTGASP_H_ */
/* END */

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/****************************************************************************
*
* ftglyph.h
*
* FreeType convenience functions to handle glyphs (specification).
*
* Copyright (C) 1996-2024 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.
*
*/
/**************************************************************************
*
* This file contains the definition of several convenience functions that
* can be used by client applications to easily retrieve glyph bitmaps and
* outlines from a given face.
*
* These functions should be optional if you are writing a font server or
* text layout engine on top of FreeType. However, they are pretty handy
* for many other simple uses of the library.
*
*/
#ifndef FTGLYPH_H_
#define FTGLYPH_H_
#include <freetype/freetype.h>
#ifdef FREETYPE_H
#error "freetype.h of FreeType 1 has been loaded!"
#error "Please fix the directory search order for header files"
#error "so that freetype.h of FreeType 2 is found first."
#endif
FT_BEGIN_HEADER
/**************************************************************************
*
* @section:
* glyph_management
*
* @title:
* Glyph Management
*
* @abstract:
* Generic interface to manage individual glyph data.
*
* @description:
* This section contains definitions used to manage glyph data through
* generic @FT_Glyph objects. Each of them can contain a bitmap,
* a vector outline, or even images in other formats. These objects are
* detached from @FT_Face, contrary to @FT_GlyphSlot.
*
*/
/* forward declaration to a private type */
typedef struct FT_Glyph_Class_ FT_Glyph_Class;
/**************************************************************************
*
* @type:
* FT_Glyph
*
* @description:
* Handle to an object used to model generic glyph images. It is a
* pointer to the @FT_GlyphRec structure and can contain a glyph bitmap
* or pointer.
*
* @note:
* Glyph objects are not owned by the library. You must thus release
* them manually (through @FT_Done_Glyph) _before_ calling
* @FT_Done_FreeType.
*/
typedef struct FT_GlyphRec_* FT_Glyph;
/**************************************************************************
*
* @struct:
* FT_GlyphRec
*
* @description:
* The root glyph structure contains a given glyph image plus its advance
* width in 16.16 fixed-point format.
*
* @fields:
* library ::
* A handle to the FreeType library object.
*
* clazz ::
* A pointer to the glyph's class. Private.
*
* format ::
* The format of the glyph's image.
*
* advance ::
* A 16.16 vector that gives the glyph's advance width.
*/
typedef struct FT_GlyphRec_
{
FT_Library library;
const FT_Glyph_Class* clazz;
FT_Glyph_Format format;
FT_Vector advance;
} FT_GlyphRec;
/**************************************************************************
*
* @type:
* FT_BitmapGlyph
*
* @description:
* A handle to an object used to model a bitmap glyph image. This is a
* 'sub-class' of @FT_Glyph, and a pointer to @FT_BitmapGlyphRec.
*/
typedef struct FT_BitmapGlyphRec_* FT_BitmapGlyph;
/**************************************************************************
*
* @struct:
* FT_BitmapGlyphRec
*
* @description:
* A structure used for bitmap glyph images. This really is a
* 'sub-class' of @FT_GlyphRec.
*
* @fields:
* root ::
* The root fields of @FT_Glyph.
*
* left ::
* The left-side bearing, i.e., the horizontal distance from the
* current pen position to the left border of the glyph bitmap.
*
* top ::
* The top-side bearing, i.e., the vertical distance from the current
* pen position to the top border of the glyph bitmap. This distance
* is positive for upwards~y!
*
* bitmap ::
* A descriptor for the bitmap.
*
* @note:
* You can typecast an @FT_Glyph to @FT_BitmapGlyph if you have
* `glyph->format == FT_GLYPH_FORMAT_BITMAP`. This lets you access the
* bitmap's contents easily.
*
* The corresponding pixel buffer is always owned by @FT_BitmapGlyph and
* is thus created and destroyed with it.
*/
typedef struct FT_BitmapGlyphRec_
{
FT_GlyphRec root;
FT_Int left;
FT_Int top;
FT_Bitmap bitmap;
} FT_BitmapGlyphRec;
/**************************************************************************
*
* @type:
* FT_OutlineGlyph
*
* @description:
* A handle to an object used to model an outline glyph image. This is a
* 'sub-class' of @FT_Glyph, and a pointer to @FT_OutlineGlyphRec.
*/
typedef struct FT_OutlineGlyphRec_* FT_OutlineGlyph;
/**************************************************************************
*
* @struct:
* FT_OutlineGlyphRec
*
* @description:
* A structure used for outline (vectorial) glyph images. This really is
* a 'sub-class' of @FT_GlyphRec.
*
* @fields:
* root ::
* The root @FT_Glyph fields.
*
* outline ::
* A descriptor for the outline.
*
* @note:
* You can typecast an @FT_Glyph to @FT_OutlineGlyph if you have
* `glyph->format == FT_GLYPH_FORMAT_OUTLINE`. This lets you access the
* outline's content easily.
*
* As the outline is extracted from a glyph slot, its coordinates are
* expressed normally in 26.6 pixels, unless the flag @FT_LOAD_NO_SCALE
* was used in @FT_Load_Glyph or @FT_Load_Char.
*
* The outline's tables are always owned by the object and are destroyed
* with it.
*/
typedef struct FT_OutlineGlyphRec_
{
FT_GlyphRec root;
FT_Outline outline;
} FT_OutlineGlyphRec;
/**************************************************************************
*
* @type:
* FT_SvgGlyph
*
* @description:
* A handle to an object used to model an SVG glyph. This is a
* 'sub-class' of @FT_Glyph, and a pointer to @FT_SvgGlyphRec.
*
* @since:
* 2.12
*/
typedef struct FT_SvgGlyphRec_* FT_SvgGlyph;
/**************************************************************************
*
* @struct:
* FT_SvgGlyphRec
*
* @description:
* A structure used for OT-SVG glyphs. This is a 'sub-class' of
* @FT_GlyphRec.
*
* @fields:
* root ::
* The root @FT_GlyphRec fields.
*
* svg_document ::
* A pointer to the SVG document.
*
* svg_document_length ::
* The length of `svg_document`.
*
* glyph_index ::
* The index of the glyph to be rendered.
*
* metrics ::
* A metrics object storing the size information.
*
* units_per_EM ::
* The size of the EM square.
*
* start_glyph_id ::
* The first glyph ID in the glyph range covered by this document.
*
* end_glyph_id ::
* The last glyph ID in the glyph range covered by this document.
*
* transform ::
* A 2x2 transformation matrix to apply to the glyph while rendering
* it.
*
* delta ::
* Translation to apply to the glyph while rendering.
*
* @note:
* The Glyph Management API requires @FT_Glyph or its 'sub-class' to have
* all the information needed to completely define the glyph's rendering.
* Outline-based glyphs can directly apply transformations to the outline
* but this is not possible for an SVG document that hasn't been parsed.
* Therefore, the transformation is stored along with the document. In
* the absence of a 'ViewBox' or 'Width'/'Height' attribute, the size of
* the ViewPort should be assumed to be 'units_per_EM'.
*/
typedef struct FT_SvgGlyphRec_
{
FT_GlyphRec root;
FT_Byte* svg_document;
FT_ULong svg_document_length;
FT_UInt glyph_index;
FT_Size_Metrics metrics;
FT_UShort units_per_EM;
FT_UShort start_glyph_id;
FT_UShort end_glyph_id;
FT_Matrix transform;
FT_Vector delta;
} FT_SvgGlyphRec;
/**************************************************************************
*
* @function:
* FT_New_Glyph
*
* @description:
* A function used to create a new empty glyph image. Note that the
* created @FT_Glyph object must be released with @FT_Done_Glyph.
*
* @input:
* library ::
* A handle to the FreeType library object.
*
* format ::
* The format of the glyph's image.
*
* @output:
* aglyph ::
* A handle to the glyph object.
*
* @return:
* FreeType error code. 0~means success.
*
* @since:
* 2.10
*/
FT_EXPORT( FT_Error )
FT_New_Glyph( FT_Library library,
FT_Glyph_Format format,
FT_Glyph *aglyph );
/**************************************************************************
*
* @function:
* FT_Get_Glyph
*
* @description:
* A function used to extract a glyph image from a slot. Note that the
* created @FT_Glyph object must be released with @FT_Done_Glyph.
*
* @input:
* slot ::
* A handle to the source glyph slot.
*
* @output:
* aglyph ::
* A handle to the glyph object. `NULL` in case of error.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* Because `*aglyph->advance.x` and `*aglyph->advance.y` are 16.16
* fixed-point numbers, `slot->advance.x` and `slot->advance.y` (which
* are in 26.6 fixed-point format) must be in the range ]-32768;32768[.
*/
FT_EXPORT( FT_Error )
FT_Get_Glyph( FT_GlyphSlot slot,
FT_Glyph *aglyph );
/**************************************************************************
*
* @function:
* FT_Glyph_Copy
*
* @description:
* A function used to copy a glyph image. Note that the created
* @FT_Glyph object must be released with @FT_Done_Glyph.
*
* @input:
* source ::
* A handle to the source glyph object.
*
* @output:
* target ::
* A handle to the target glyph object. `NULL` in case of error.
*
* @return:
* FreeType error code. 0~means success.
*/
FT_EXPORT( FT_Error )
FT_Glyph_Copy( FT_Glyph source,
FT_Glyph *target );
/**************************************************************************
*
* @function:
* FT_Glyph_Transform
*
* @description:
* Transform a glyph image if its format is scalable.
*
* @inout:
* glyph ::
* A handle to the target glyph object.
*
* @input:
* matrix ::
* A pointer to a 2x2 matrix to apply.
*
* delta ::
* A pointer to a 2d vector to apply. Coordinates are expressed in
* 1/64 of a pixel.
*
* @return:
* FreeType error code (if not 0, the glyph format is not scalable).
*
* @note:
* The 2x2 transformation matrix is also applied to the glyph's advance
* vector.
*/
FT_EXPORT( FT_Error )
FT_Glyph_Transform( FT_Glyph glyph,
const FT_Matrix* matrix,
const FT_Vector* delta );
/**************************************************************************
*
* @enum:
* FT_Glyph_BBox_Mode
*
* @description:
* The mode how the values of @FT_Glyph_Get_CBox are returned.
*
* @values:
* FT_GLYPH_BBOX_UNSCALED ::
* Return unscaled font units.
*
* FT_GLYPH_BBOX_SUBPIXELS ::
* Return unfitted 26.6 coordinates.
*
* FT_GLYPH_BBOX_GRIDFIT ::
* Return grid-fitted 26.6 coordinates.
*
* FT_GLYPH_BBOX_TRUNCATE ::
* Return coordinates in integer pixels.
*
* FT_GLYPH_BBOX_PIXELS ::
* Return grid-fitted pixel coordinates.
*/
typedef enum FT_Glyph_BBox_Mode_
{
FT_GLYPH_BBOX_UNSCALED = 0,
FT_GLYPH_BBOX_SUBPIXELS = 0,
FT_GLYPH_BBOX_GRIDFIT = 1,
FT_GLYPH_BBOX_TRUNCATE = 2,
FT_GLYPH_BBOX_PIXELS = 3
} FT_Glyph_BBox_Mode;
/* these constants are deprecated; use the corresponding */
/* `FT_Glyph_BBox_Mode` values instead */
#define ft_glyph_bbox_unscaled FT_GLYPH_BBOX_UNSCALED
#define ft_glyph_bbox_subpixels FT_GLYPH_BBOX_SUBPIXELS
#define ft_glyph_bbox_gridfit FT_GLYPH_BBOX_GRIDFIT
#define ft_glyph_bbox_truncate FT_GLYPH_BBOX_TRUNCATE
#define ft_glyph_bbox_pixels FT_GLYPH_BBOX_PIXELS
/**************************************************************************
*
* @function:
* FT_Glyph_Get_CBox
*
* @description:
* Return a glyph's 'control box'. The control box encloses all the
* outline's points, including Bezier control points. Though it
* coincides with the exact bounding box for most glyphs, it can be
* slightly larger in some situations (like when rotating an outline that
* contains Bezier outside arcs).
*
* Computing the control box is very fast, while getting the bounding box
* can take much more time as it needs to walk over all segments and arcs
* in the outline. To get the latter, you can use the 'ftbbox'
* component, which is dedicated to this single task.
*
* @input:
* glyph ::
* A handle to the source glyph object.
*
* mode ::
* The mode that indicates how to interpret the returned bounding box
* values.
*
* @output:
* acbox ::
* The glyph coordinate bounding box. Coordinates are expressed in
* 1/64 of pixels if it is grid-fitted.
*
* @note:
* Coordinates are relative to the glyph origin, using the y~upwards
* convention.
*
* If the glyph has been loaded with @FT_LOAD_NO_SCALE, `bbox_mode` must
* be set to @FT_GLYPH_BBOX_UNSCALED to get unscaled font units in 26.6
* pixel format. The value @FT_GLYPH_BBOX_SUBPIXELS is another name for
* this constant.
*
* If the font is tricky and the glyph has been loaded with
* @FT_LOAD_NO_SCALE, the resulting CBox is meaningless. To get
* reasonable values for the CBox it is necessary to load the glyph at a
* large ppem value (so that the hinting instructions can properly shift
* and scale the subglyphs), then extracting the CBox, which can be
* eventually converted back to font units.
*
* Note that the maximum coordinates are exclusive, which means that one
* can compute the width and height of the glyph image (be it in integer
* or 26.6 pixels) as:
*
* ```
* width = bbox.xMax - bbox.xMin;
* height = bbox.yMax - bbox.yMin;
* ```
*
* Note also that for 26.6 coordinates, if `bbox_mode` is set to
* @FT_GLYPH_BBOX_GRIDFIT, the coordinates will also be grid-fitted,
* which corresponds to:
*
* ```
* bbox.xMin = FLOOR(bbox.xMin);
* bbox.yMin = FLOOR(bbox.yMin);
* bbox.xMax = CEILING(bbox.xMax);
* bbox.yMax = CEILING(bbox.yMax);
* ```
*
* To get the bbox in pixel coordinates, set `bbox_mode` to
* @FT_GLYPH_BBOX_TRUNCATE.
*
* To get the bbox in grid-fitted pixel coordinates, set `bbox_mode` to
* @FT_GLYPH_BBOX_PIXELS.
*/
FT_EXPORT( void )
FT_Glyph_Get_CBox( FT_Glyph glyph,
FT_UInt bbox_mode,
FT_BBox *acbox );
/**************************************************************************
*
* @function:
* FT_Glyph_To_Bitmap
*
* @description:
* Convert a given glyph object to a bitmap glyph object.
*
* @inout:
* the_glyph ::
* A pointer to a handle to the target glyph.
*
* @input:
* render_mode ::
* An enumeration that describes how the data is rendered.
*
* origin ::
* A pointer to a vector used to translate the glyph image before
* rendering. Can be~0 (if no translation). The origin is expressed
* in 26.6 pixels.
*
* destroy ::
* A boolean that indicates that the original glyph image should be
* destroyed by this function. It is never destroyed in case of error.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* This function does nothing if the glyph format isn't scalable.
*
* The glyph image is translated with the `origin` vector before
* rendering.
*
* The first parameter is a pointer to an @FT_Glyph handle that will be
* _replaced_ by this function (with newly allocated data). Typically,
* you would do something like the following (omitting error handling).
*
* ```
* FT_Glyph glyph;
* FT_BitmapGlyph glyph_bitmap;
*
*
* // load glyph
* error = FT_Load_Char( face, glyph_index, FT_LOAD_DEFAULT );
*
* // extract glyph image
* error = FT_Get_Glyph( face->glyph, &glyph );
*
* // convert to a bitmap (default render mode + destroying old)
* if ( glyph->format != FT_GLYPH_FORMAT_BITMAP )
* {
* error = FT_Glyph_To_Bitmap( &glyph, FT_RENDER_MODE_NORMAL,
* 0, 1 );
* if ( error ) // `glyph' unchanged
* ...
* }
*
* // access bitmap content by typecasting
* glyph_bitmap = (FT_BitmapGlyph)glyph;
*
* // do funny stuff with it, like blitting/drawing
* ...
*
* // discard glyph image (bitmap or not)
* FT_Done_Glyph( glyph );
* ```
*
* Here is another example, again without error handling.
*
* ```
* FT_Glyph glyphs[MAX_GLYPHS]
*
*
* ...
*
* for ( idx = 0; i < MAX_GLYPHS; i++ )
* error = FT_Load_Glyph( face, idx, FT_LOAD_DEFAULT ) ||
* FT_Get_Glyph ( face->glyph, &glyphs[idx] );
*
* ...
*
* for ( idx = 0; i < MAX_GLYPHS; i++ )
* {
* FT_Glyph bitmap = glyphs[idx];
*
*
* ...
*
* // after this call, `bitmap' no longer points into
* // the `glyphs' array (and the old value isn't destroyed)
* FT_Glyph_To_Bitmap( &bitmap, FT_RENDER_MODE_MONO, 0, 0 );
*
* ...
*
* FT_Done_Glyph( bitmap );
* }
*
* ...
*
* for ( idx = 0; i < MAX_GLYPHS; i++ )
* FT_Done_Glyph( glyphs[idx] );
* ```
*/
FT_EXPORT( FT_Error )
FT_Glyph_To_Bitmap( FT_Glyph* the_glyph,
FT_Render_Mode render_mode,
const FT_Vector* origin,
FT_Bool destroy );
/**************************************************************************
*
* @function:
* FT_Done_Glyph
*
* @description:
* Destroy a given glyph.
*
* @input:
* glyph ::
* A handle to the target glyph object. Can be `NULL`.
*/
FT_EXPORT( void )
FT_Done_Glyph( FT_Glyph glyph );
/* */
/* other helpful functions */
/**************************************************************************
*
* @section:
* computations
*
*/
/**************************************************************************
*
* @function:
* FT_Matrix_Multiply
*
* @description:
* Perform the matrix operation `b = a*b`.
*
* @input:
* a ::
* A pointer to matrix `a`.
*
* @inout:
* b ::
* A pointer to matrix `b`.
*
* @note:
* The result is undefined if either `a` or `b` is zero.
*
* Since the function uses wrap-around arithmetic, results become
* meaningless if the arguments are very large.
*/
FT_EXPORT( void )
FT_Matrix_Multiply( const FT_Matrix* a,
FT_Matrix* b );
/**************************************************************************
*
* @function:
* FT_Matrix_Invert
*
* @description:
* Invert a 2x2 matrix. Return an error if it can't be inverted.
*
* @inout:
* matrix ::
* A pointer to the target matrix. Remains untouched in case of error.
*
* @return:
* FreeType error code. 0~means success.
*/
FT_EXPORT( FT_Error )
FT_Matrix_Invert( FT_Matrix* matrix );
/* */
FT_END_HEADER
#endif /* FTGLYPH_H_ */
/* END */
/* Local Variables: */
/* coding: utf-8 */
/* End: */

354
arcs-sdk/modules/freetype/include/freetype/ftgxval.h Normal file
View File

@@ -0,0 +1,354 @@
/****************************************************************************
*
* ftgxval.h
*
* FreeType API for validating TrueTypeGX/AAT tables (specification).
*
* Copyright (C) 2004-2024 by
* Masatake YAMATO, Redhat K.K,
* 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.
*
*/
/****************************************************************************
*
* gxvalid is derived from both gxlayout module and otvalid module.
* Development of gxlayout is supported by the Information-technology
* Promotion Agency(IPA), Japan.
*
*/
#ifndef FTGXVAL_H_
#define FTGXVAL_H_
#include <freetype/freetype.h>
#ifdef FREETYPE_H
#error "freetype.h of FreeType 1 has been loaded!"
#error "Please fix the directory search order for header files"
#error "so that freetype.h of FreeType 2 is found first."
#endif
FT_BEGIN_HEADER
/**************************************************************************
*
* @section:
* gx_validation
*
* @title:
* TrueTypeGX/AAT Validation
*
* @abstract:
* An API to validate TrueTypeGX/AAT tables.
*
* @description:
* This section contains the declaration of functions to validate some
* TrueTypeGX tables (feat, mort, morx, bsln, just, kern, opbd, trak,
* prop, lcar).
*
* @order:
* FT_TrueTypeGX_Validate
* FT_TrueTypeGX_Free
*
* FT_ClassicKern_Validate
* FT_ClassicKern_Free
*
* FT_VALIDATE_GX_LENGTH
* FT_VALIDATE_GXXXX
* FT_VALIDATE_CKERNXXX
*
*/
/**************************************************************************
*
*
* Warning: Use `FT_VALIDATE_XXX` to validate a table.
* Following definitions are for gxvalid developers.
*
*
*/
#define FT_VALIDATE_feat_INDEX 0
#define FT_VALIDATE_mort_INDEX 1
#define FT_VALIDATE_morx_INDEX 2
#define FT_VALIDATE_bsln_INDEX 3
#define FT_VALIDATE_just_INDEX 4
#define FT_VALIDATE_kern_INDEX 5
#define FT_VALIDATE_opbd_INDEX 6
#define FT_VALIDATE_trak_INDEX 7
#define FT_VALIDATE_prop_INDEX 8
#define FT_VALIDATE_lcar_INDEX 9
#define FT_VALIDATE_GX_LAST_INDEX FT_VALIDATE_lcar_INDEX
/**************************************************************************
*
* @macro:
* FT_VALIDATE_GX_LENGTH
*
* @description:
* The number of tables checked in this module. Use it as a parameter
* for the `table-length` argument of function @FT_TrueTypeGX_Validate.
*/
#define FT_VALIDATE_GX_LENGTH ( FT_VALIDATE_GX_LAST_INDEX + 1 )
/* */
/* Up to 0x1000 is used by otvalid.
Ox2xxx is reserved for feature OT extension. */
#define FT_VALIDATE_GX_START 0x4000
#define FT_VALIDATE_GX_BITFIELD( tag ) \
( FT_VALIDATE_GX_START << FT_VALIDATE_##tag##_INDEX )
/**************************************************************************
*
* @enum:
* FT_VALIDATE_GXXXX
*
* @description:
* A list of bit-field constants used with @FT_TrueTypeGX_Validate to
* indicate which TrueTypeGX/AAT Type tables should be validated.
*
* @values:
* FT_VALIDATE_feat ::
* Validate 'feat' table.
*
* FT_VALIDATE_mort ::
* Validate 'mort' table.
*
* FT_VALIDATE_morx ::
* Validate 'morx' table.
*
* FT_VALIDATE_bsln ::
* Validate 'bsln' table.
*
* FT_VALIDATE_just ::
* Validate 'just' table.
*
* FT_VALIDATE_kern ::
* Validate 'kern' table.
*
* FT_VALIDATE_opbd ::
* Validate 'opbd' table.
*
* FT_VALIDATE_trak ::
* Validate 'trak' table.
*
* FT_VALIDATE_prop ::
* Validate 'prop' table.
*
* FT_VALIDATE_lcar ::
* Validate 'lcar' table.
*
* FT_VALIDATE_GX ::
* Validate all TrueTypeGX tables (feat, mort, morx, bsln, just, kern,
* opbd, trak, prop and lcar).
*
*/
#define FT_VALIDATE_feat FT_VALIDATE_GX_BITFIELD( feat )
#define FT_VALIDATE_mort FT_VALIDATE_GX_BITFIELD( mort )
#define FT_VALIDATE_morx FT_VALIDATE_GX_BITFIELD( morx )
#define FT_VALIDATE_bsln FT_VALIDATE_GX_BITFIELD( bsln )
#define FT_VALIDATE_just FT_VALIDATE_GX_BITFIELD( just )
#define FT_VALIDATE_kern FT_VALIDATE_GX_BITFIELD( kern )
#define FT_VALIDATE_opbd FT_VALIDATE_GX_BITFIELD( opbd )
#define FT_VALIDATE_trak FT_VALIDATE_GX_BITFIELD( trak )
#define FT_VALIDATE_prop FT_VALIDATE_GX_BITFIELD( prop )
#define FT_VALIDATE_lcar FT_VALIDATE_GX_BITFIELD( lcar )
#define FT_VALIDATE_GX ( FT_VALIDATE_feat | \
FT_VALIDATE_mort | \
FT_VALIDATE_morx | \
FT_VALIDATE_bsln | \
FT_VALIDATE_just | \
FT_VALIDATE_kern | \
FT_VALIDATE_opbd | \
FT_VALIDATE_trak | \
FT_VALIDATE_prop | \
FT_VALIDATE_lcar )
/**************************************************************************
*
* @function:
* FT_TrueTypeGX_Validate
*
* @description:
* Validate various TrueTypeGX tables to assure that all offsets and
* indices are valid. The idea is that a higher-level library that
* actually does the text layout can access those tables without error
* checking (which can be quite time consuming).
*
* @input:
* face ::
* A handle to the input face.
*
* validation_flags ::
* A bit field that specifies the tables to be validated. See
* @FT_VALIDATE_GXXXX for possible values.
*
* table_length ::
* The size of the `tables` array. Normally, @FT_VALIDATE_GX_LENGTH
* should be passed.
*
* @output:
* tables ::
* The array where all validated sfnt tables are stored. The array
* itself must be allocated by a client.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* This function only works with TrueTypeGX fonts, returning an error
* otherwise.
*
* After use, the application should deallocate the buffers pointed to by
* each `tables` element, by calling @FT_TrueTypeGX_Free. A `NULL` value
* indicates that the table either doesn't exist in the font, the
* application hasn't asked for validation, or the validator doesn't have
* the ability to validate the sfnt table.
*/
FT_EXPORT( FT_Error )
FT_TrueTypeGX_Validate( FT_Face face,
FT_UInt validation_flags,
FT_Bytes tables[FT_VALIDATE_GX_LENGTH],
FT_UInt table_length );
/**************************************************************************
*
* @function:
* FT_TrueTypeGX_Free
*
* @description:
* Free the buffer allocated by TrueTypeGX validator.
*
* @input:
* face ::
* A handle to the input face.
*
* table ::
* The pointer to the buffer allocated by @FT_TrueTypeGX_Validate.
*
* @note:
* This function must be used to free the buffer allocated by
* @FT_TrueTypeGX_Validate only.
*/
FT_EXPORT( void )
FT_TrueTypeGX_Free( FT_Face face,
FT_Bytes table );
/**************************************************************************
*
* @enum:
* FT_VALIDATE_CKERNXXX
*
* @description:
* A list of bit-field constants used with @FT_ClassicKern_Validate to
* indicate the classic kern dialect or dialects. If the selected type
* doesn't fit, @FT_ClassicKern_Validate regards the table as invalid.
*
* @values:
* FT_VALIDATE_MS ::
* Handle the 'kern' table as a classic Microsoft kern table.
*
* FT_VALIDATE_APPLE ::
* Handle the 'kern' table as a classic Apple kern table.
*
* FT_VALIDATE_CKERN ::
* Handle the 'kern' as either classic Apple or Microsoft kern table.
*/
#define FT_VALIDATE_MS ( FT_VALIDATE_GX_START << 0 )
#define FT_VALIDATE_APPLE ( FT_VALIDATE_GX_START << 1 )
#define FT_VALIDATE_CKERN ( FT_VALIDATE_MS | FT_VALIDATE_APPLE )
/**************************************************************************
*
* @function:
* FT_ClassicKern_Validate
*
* @description:
* Validate classic (16-bit format) kern table to assure that the
* offsets and indices are valid. The idea is that a higher-level
* library that actually does the text layout can access those tables
* without error checking (which can be quite time consuming).
*
* The 'kern' table validator in @FT_TrueTypeGX_Validate deals with both
* the new 32-bit format and the classic 16-bit format, while
* FT_ClassicKern_Validate only supports the classic 16-bit format.
*
* @input:
* face ::
* A handle to the input face.
*
* validation_flags ::
* A bit field that specifies the dialect to be validated. See
* @FT_VALIDATE_CKERNXXX for possible values.
*
* @output:
* ckern_table ::
* A pointer to the kern table.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* After use, the application should deallocate the buffers pointed to by
* `ckern_table`, by calling @FT_ClassicKern_Free. A `NULL` value
* indicates that the table doesn't exist in the font.
*/
FT_EXPORT( FT_Error )
FT_ClassicKern_Validate( FT_Face face,
FT_UInt validation_flags,
FT_Bytes *ckern_table );
/**************************************************************************
*
* @function:
* FT_ClassicKern_Free
*
* @description:
* Free the buffer allocated by classic Kern validator.
*
* @input:
* face ::
* A handle to the input face.
*
* table ::
* The pointer to the buffer that is allocated by
* @FT_ClassicKern_Validate.
*
* @note:
* This function must be used to free the buffer allocated by
* @FT_ClassicKern_Validate only.
*/
FT_EXPORT( void )
FT_ClassicKern_Free( FT_Face face,
FT_Bytes table );
/* */
FT_END_HEADER
#endif /* FTGXVAL_H_ */
/* END */

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/****************************************************************************
*
* ftgzip.h
*
* Gzip-compressed stream support.
*
* Copyright (C) 2002-2024 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.
*
*/
#ifndef FTGZIP_H_
#define FTGZIP_H_
#include <freetype/freetype.h>
#ifdef FREETYPE_H
#error "freetype.h of FreeType 1 has been loaded!"
#error "Please fix the directory search order for header files"
#error "so that freetype.h of FreeType 2 is found first."
#endif
FT_BEGIN_HEADER
/**************************************************************************
*
* @section:
* gzip
*
* @title:
* GZIP Streams
*
* @abstract:
* Using gzip-compressed font files.
*
* @description:
* In certain builds of the library, gzip compression recognition is
* automatically handled when calling @FT_New_Face or @FT_Open_Face.
* This means that if no font driver is capable of handling the raw
* compressed file, the library will try to open a gzipped stream from it
* and re-open the face with it.
*
* The stream implementation is very basic and resets the decompression
* process each time seeking backwards is needed within the stream,
* which significantly undermines the performance.
*
* This section contains the declaration of Gzip-specific functions.
*
*/
/**************************************************************************
*
* @function:
* FT_Stream_OpenGzip
*
* @description:
* Open a new stream to parse gzip-compressed font files. This is mainly
* used to support the compressed `*.pcf.gz` fonts that come with
* XFree86.
*
* @input:
* stream ::
* The target embedding stream.
*
* source ::
* The source stream.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* The source stream must be opened _before_ calling this function.
*
* Calling the internal function `FT_Stream_Close` on the new stream will
* **not** call `FT_Stream_Close` on the source stream. None of the
* stream objects will be released to the heap.
*
* This function may return `FT_Err_Unimplemented_Feature` if your build
* of FreeType was not compiled with zlib support.
*/
FT_EXPORT( FT_Error )
FT_Stream_OpenGzip( FT_Stream stream,
FT_Stream source );
/**************************************************************************
*
* @function:
* FT_Gzip_Uncompress
*
* @description:
* Decompress a zipped input buffer into an output buffer. This function
* is modeled after zlib's `uncompress` function.
*
* @input:
* memory ::
* A FreeType memory handle.
*
* input ::
* The input buffer.
*
* input_len ::
* The length of the input buffer.
*
* @output:
* output ::
* The output buffer.
*
* @inout:
* output_len ::
* Before calling the function, this is the total size of the output
* buffer, which must be large enough to hold the entire uncompressed
* data (so the size of the uncompressed data must be known in
* advance). After calling the function, `output_len` is the size of
* the used data in `output`.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* This function may return `FT_Err_Unimplemented_Feature` if your build
* of FreeType was not compiled with zlib support.
*
* @since:
* 2.5.1
*/
FT_EXPORT( FT_Error )
FT_Gzip_Uncompress( FT_Memory memory,
FT_Byte* output,
FT_ULong* output_len,
const FT_Byte* input,
FT_ULong input_len );
/* */
FT_END_HEADER
#endif /* FTGZIP_H_ */
/* END */

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/****************************************************************************
*
* ftincrem.h
*
* FreeType incremental loading (specification).
*
* Copyright (C) 2002-2024 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.
*
*/
#ifndef FTINCREM_H_
#define FTINCREM_H_
#include <freetype/freetype.h>
#include <freetype/ftparams.h>
#ifdef FREETYPE_H
#error "freetype.h of FreeType 1 has been loaded!"
#error "Please fix the directory search order for header files"
#error "so that freetype.h of FreeType 2 is found first."
#endif
FT_BEGIN_HEADER
/**************************************************************************
*
* @section:
* incremental
*
* @title:
* Incremental Loading
*
* @abstract:
* Custom Glyph Loading.
*
* @description:
* This section contains various functions used to perform so-called
* 'incremental' glyph loading. This is a mode where all glyphs loaded
* from a given @FT_Face are provided by the client application.
*
* Apart from that, all other tables are loaded normally from the font
* file. This mode is useful when FreeType is used within another
* engine, e.g., a PostScript Imaging Processor.
*
* To enable this mode, you must use @FT_Open_Face, passing an
* @FT_Parameter with the @FT_PARAM_TAG_INCREMENTAL tag and an
* @FT_Incremental_Interface value. See the comments for
* @FT_Incremental_InterfaceRec for an example.
*
*/
/**************************************************************************
*
* @type:
* FT_Incremental
*
* @description:
* An opaque type describing a user-provided object used to implement
* 'incremental' glyph loading within FreeType. This is used to support
* embedded fonts in certain environments (e.g., PostScript
* interpreters), where the glyph data isn't in the font file, or must be
* overridden by different values.
*
* @note:
* It is up to client applications to create and implement
* @FT_Incremental objects, as long as they provide implementations for
* the methods @FT_Incremental_GetGlyphDataFunc,
* @FT_Incremental_FreeGlyphDataFunc and
* @FT_Incremental_GetGlyphMetricsFunc.
*
* See the description of @FT_Incremental_InterfaceRec to understand how
* to use incremental objects with FreeType.
*
*/
typedef struct FT_IncrementalRec_* FT_Incremental;
/**************************************************************************
*
* @struct:
* FT_Incremental_MetricsRec
*
* @description:
* A small structure used to contain the basic glyph metrics returned by
* the @FT_Incremental_GetGlyphMetricsFunc method.
*
* @fields:
* bearing_x ::
* Left bearing, in font units.
*
* bearing_y ::
* Top bearing, in font units.
*
* advance ::
* Horizontal component of glyph advance, in font units.
*
* advance_v ::
* Vertical component of glyph advance, in font units.
*
* @note:
* These correspond to horizontal or vertical metrics depending on the
* value of the `vertical` argument to the function
* @FT_Incremental_GetGlyphMetricsFunc.
*
*/
typedef struct FT_Incremental_MetricsRec_
{
FT_Long bearing_x;
FT_Long bearing_y;
FT_Long advance;
FT_Long advance_v; /* since 2.3.12 */
} FT_Incremental_MetricsRec;
/**************************************************************************
*
* @struct:
* FT_Incremental_Metrics
*
* @description:
* A handle to an @FT_Incremental_MetricsRec structure.
*
*/
typedef struct FT_Incremental_MetricsRec_* FT_Incremental_Metrics;
/**************************************************************************
*
* @type:
* FT_Incremental_GetGlyphDataFunc
*
* @description:
* A function called by FreeType to access a given glyph's data bytes
* during @FT_Load_Glyph or @FT_Load_Char if incremental loading is
* enabled.
*
* Note that the format of the glyph's data bytes depends on the font
* file format. For TrueType, it must correspond to the raw bytes within
* the 'glyf' table. For PostScript formats, it must correspond to the
* **unencrypted** charstring bytes, without any `lenIV` header. It is
* undefined for any other format.
*
* @input:
* incremental ::
* Handle to an opaque @FT_Incremental handle provided by the client
* application.
*
* glyph_index ::
* Index of relevant glyph.
*
* @output:
* adata ::
* A structure describing the returned glyph data bytes (which will be
* accessed as a read-only byte block).
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* If this function returns successfully the method
* @FT_Incremental_FreeGlyphDataFunc will be called later to release the
* data bytes.
*
* Nested calls to @FT_Incremental_GetGlyphDataFunc can happen for
* compound glyphs.
*
*/
typedef FT_Error
(*FT_Incremental_GetGlyphDataFunc)( FT_Incremental incremental,
FT_UInt glyph_index,
FT_Data* adata );
/**************************************************************************
*
* @type:
* FT_Incremental_FreeGlyphDataFunc
*
* @description:
* A function used to release the glyph data bytes returned by a
* successful call to @FT_Incremental_GetGlyphDataFunc.
*
* @input:
* incremental ::
* A handle to an opaque @FT_Incremental handle provided by the client
* application.
*
* data ::
* A structure describing the glyph data bytes (which will be accessed
* as a read-only byte block).
*
*/
typedef void
(*FT_Incremental_FreeGlyphDataFunc)( FT_Incremental incremental,
FT_Data* data );
/**************************************************************************
*
* @type:
* FT_Incremental_GetGlyphMetricsFunc
*
* @description:
* A function used to retrieve the basic metrics of a given glyph index
* before accessing its data. This allows for handling font types such
* as PCL~XL Format~1, Class~2 downloaded TrueType fonts, where the glyph
* metrics (`hmtx` and `vmtx` tables) are permitted to be omitted from
* the font, and the relevant metrics included in the header of the glyph
* outline data. Importantly, this is not intended to allow custom glyph
* metrics (for example, Postscript Metrics dictionaries), because that
* conflicts with the requirements of outline hinting. Such custom
* metrics must be handled separately, by the calling application.
*
* @input:
* incremental ::
* A handle to an opaque @FT_Incremental handle provided by the client
* application.
*
* glyph_index ::
* Index of relevant glyph.
*
* vertical ::
* If true, return vertical metrics.
*
* ametrics ::
* This parameter is used for both input and output. The original
* glyph metrics, if any, in font units. If metrics are not available
* all the values must be set to zero.
*
* @output:
* ametrics ::
* The glyph metrics in font units.
*
*/
typedef FT_Error
(*FT_Incremental_GetGlyphMetricsFunc)
( FT_Incremental incremental,
FT_UInt glyph_index,
FT_Bool vertical,
FT_Incremental_MetricsRec *ametrics );
/**************************************************************************
*
* @struct:
* FT_Incremental_FuncsRec
*
* @description:
* A table of functions for accessing fonts that load data incrementally.
* Used in @FT_Incremental_InterfaceRec.
*
* @fields:
* get_glyph_data ::
* The function to get glyph data. Must not be null.
*
* free_glyph_data ::
* The function to release glyph data. Must not be null.
*
* get_glyph_metrics ::
* The function to get glyph metrics. May be null if the font does not
* require it.
*
*/
typedef struct FT_Incremental_FuncsRec_
{
FT_Incremental_GetGlyphDataFunc get_glyph_data;
FT_Incremental_FreeGlyphDataFunc free_glyph_data;
FT_Incremental_GetGlyphMetricsFunc get_glyph_metrics;
} FT_Incremental_FuncsRec;
/**************************************************************************
*
* @struct:
* FT_Incremental_InterfaceRec
*
* @description:
* A structure to be used with @FT_Open_Face to indicate that the user
* wants to support incremental glyph loading. You should use it with
* @FT_PARAM_TAG_INCREMENTAL as in the following example:
*
* ```
* FT_Incremental_InterfaceRec inc_int;
* FT_Parameter parameter;
* FT_Open_Args open_args;
*
*
* // set up incremental descriptor
* inc_int.funcs = my_funcs;
* inc_int.object = my_object;
*
* // set up optional parameter
* parameter.tag = FT_PARAM_TAG_INCREMENTAL;
* parameter.data = &inc_int;
*
* // set up FT_Open_Args structure
* open_args.flags = FT_OPEN_PATHNAME | FT_OPEN_PARAMS;
* open_args.pathname = my_font_pathname;
* open_args.num_params = 1;
* open_args.params = &parameter; // we use one optional argument
*
* // open the font
* error = FT_Open_Face( library, &open_args, index, &face );
* ...
* ```
*
*/
typedef struct FT_Incremental_InterfaceRec_
{
const FT_Incremental_FuncsRec* funcs;
FT_Incremental object;
} FT_Incremental_InterfaceRec;
/**************************************************************************
*
* @type:
* FT_Incremental_Interface
*
* @description:
* A pointer to an @FT_Incremental_InterfaceRec structure.
*
*/
typedef FT_Incremental_InterfaceRec* FT_Incremental_Interface;
/* */
FT_END_HEADER
#endif /* FTINCREM_H_ */
/* END */

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/****************************************************************************
*
* ftlcdfil.h
*
* FreeType API for color filtering of subpixel bitmap glyphs
* (specification).
*
* Copyright (C) 2006-2024 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.
*
*/
#ifndef FTLCDFIL_H_
#define FTLCDFIL_H_
#include <freetype/freetype.h>
#include <freetype/ftparams.h>
#ifdef FREETYPE_H
#error "freetype.h of FreeType 1 has been loaded!"
#error "Please fix the directory search order for header files"
#error "so that freetype.h of FreeType 2 is found first."
#endif
FT_BEGIN_HEADER
/**************************************************************************
*
* @section:
* lcd_rendering
*
* @title:
* Subpixel Rendering
*
* @abstract:
* API to control subpixel rendering.
*
* @description:
* FreeType provides two alternative subpixel rendering technologies.
* Should you define `FT_CONFIG_OPTION_SUBPIXEL_RENDERING` in your
* `ftoption.h` file, this enables ClearType-style rendering.
* Otherwise, Harmony LCD rendering is enabled. These technologies are
* controlled differently and API described below, although always
* available, performs its function when appropriate method is enabled
* and does nothing otherwise.
*
* ClearType-style LCD rendering exploits the color-striped structure of
* LCD pixels, increasing the available resolution in the direction of
* the stripe (usually horizontal RGB) by a factor of~3. Using the
* subpixel coverages unfiltered can create severe color fringes
* especially when rendering thin features. Indeed, to produce
* black-on-white text, the nearby color subpixels must be dimmed
* evenly. Therefore, an equalizing 5-tap FIR filter should be applied
* to subpixel coverages regardless of pixel boundaries and should have
* these properties:
*
* 1. It should be symmetrical, like {~a, b, c, b, a~}, to avoid
* any shifts in appearance.
*
* 2. It should be color-balanced, meaning a~+ b~=~c, to reduce color
* fringes by distributing the computed coverage for one subpixel to
* all subpixels equally.
*
* 3. It should be normalized, meaning 2a~+ 2b~+ c~=~1.0 to maintain
* overall brightness.
*
* Boxy 3-tap filter {0, 1/3, 1/3, 1/3, 0} is sharper but is less
* forgiving of non-ideal gamma curves of a screen (and viewing angles),
* beveled filters are fuzzier but more tolerant.
*
* Use the @FT_Library_SetLcdFilter or @FT_Library_SetLcdFilterWeights
* API to specify a low-pass filter, which is then applied to
* subpixel-rendered bitmaps generated through @FT_Render_Glyph.
*
* Harmony LCD rendering is suitable to panels with any regular subpixel
* structure, not just monitors with 3 color striped subpixels, as long
* as the color subpixels have fixed positions relative to the pixel
* center. In this case, each color channel can be rendered separately
* after shifting the outline opposite to the subpixel shift so that the
* coverage maps are aligned. This method is immune to color fringes
* because the shifts do not change integral coverage.
*
* The subpixel geometry must be specified by xy-coordinates for each
* subpixel. By convention they may come in the RGB order: {{-1/3, 0},
* {0, 0}, {1/3, 0}} for standard RGB striped panel or {{-1/6, 1/4},
* {-1/6, -1/4}, {1/3, 0}} for a certain PenTile panel.
*
* Use the @FT_Library_SetLcdGeometry API to specify subpixel positions.
* If one follows the RGB order convention, the same order applies to the
* resulting @FT_PIXEL_MODE_LCD and @FT_PIXEL_MODE_LCD_V bitmaps. Note,
* however, that the coordinate frame for the latter must be rotated
* clockwise. Harmony with default LCD geometry is equivalent to
* ClearType with light filter.
*
* As a result of ClearType filtering or Harmony shifts, the resulting
* dimensions of LCD bitmaps can be slightly wider or taller than the
* dimensions the original outline with regard to the pixel grid.
* For example, for @FT_RENDER_MODE_LCD, the filter adds 2~subpixels to
* the left, and 2~subpixels to the right. The bitmap offset values are
* adjusted accordingly, so clients shouldn't need to modify their layout
* and glyph positioning code when enabling the filter.
*
* The ClearType and Harmony rendering is applicable to glyph bitmaps
* rendered through @FT_Render_Glyph, @FT_Load_Glyph, @FT_Load_Char, and
* @FT_Glyph_To_Bitmap, when @FT_RENDER_MODE_LCD or @FT_RENDER_MODE_LCD_V
* is specified. This API does not control @FT_Outline_Render and
* @FT_Outline_Get_Bitmap.
*
* The described algorithms can completely remove color artefacts when
* combined with gamma-corrected alpha blending in linear space. Each of
* the 3~alpha values (subpixels) must by independently used to blend one
* color channel. That is, red alpha blends the red channel of the text
* color with the red channel of the background pixel.
*/
/**************************************************************************
*
* @enum:
* FT_LcdFilter
*
* @description:
* A list of values to identify various types of LCD filters.
*
* @values:
* FT_LCD_FILTER_NONE ::
* Do not perform filtering. When used with subpixel rendering, this
* results in sometimes severe color fringes.
*
* FT_LCD_FILTER_DEFAULT ::
* This is a beveled, normalized, and color-balanced five-tap filter
* with weights of [0x08 0x4D 0x56 0x4D 0x08] in 1/256 units.
*
* FT_LCD_FILTER_LIGHT ::
* this is a boxy, normalized, and color-balanced three-tap filter with
* weights of [0x00 0x55 0x56 0x55 0x00] in 1/256 units.
*
* FT_LCD_FILTER_LEGACY ::
* FT_LCD_FILTER_LEGACY1 ::
* This filter corresponds to the original libXft color filter. It
* provides high contrast output but can exhibit really bad color
* fringes if glyphs are not extremely well hinted to the pixel grid.
* This filter is only provided for comparison purposes, and might be
* disabled or stay unsupported in the future. The second value is
* provided for compatibility with FontConfig, which historically used
* different enumeration, sometimes incorrectly forwarded to FreeType.
*
* @since:
* 2.3.0 (`FT_LCD_FILTER_LEGACY1` since 2.6.2)
*/
typedef enum FT_LcdFilter_
{
FT_LCD_FILTER_NONE = 0,
FT_LCD_FILTER_DEFAULT = 1,
FT_LCD_FILTER_LIGHT = 2,
FT_LCD_FILTER_LEGACY1 = 3,
FT_LCD_FILTER_LEGACY = 16,
FT_LCD_FILTER_MAX /* do not remove */
} FT_LcdFilter;
/**************************************************************************
*
* @function:
* FT_Library_SetLcdFilter
*
* @description:
* This function is used to change filter applied to LCD decimated
* bitmaps, like the ones used when calling @FT_Render_Glyph with
* @FT_RENDER_MODE_LCD or @FT_RENDER_MODE_LCD_V.
*
* @input:
* library ::
* A handle to the target library instance.
*
* filter ::
* The filter type.
*
* You can use @FT_LCD_FILTER_NONE here to disable this feature, or
* @FT_LCD_FILTER_DEFAULT to use a default filter that should work well
* on most LCD screens.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* Since 2.10.3 the LCD filtering is enabled with @FT_LCD_FILTER_DEFAULT.
* It is no longer necessary to call this function explicitly except
* to choose a different filter or disable filtering altogether with
* @FT_LCD_FILTER_NONE.
*
* This function does nothing but returns `FT_Err_Unimplemented_Feature`
* if the configuration macro `FT_CONFIG_OPTION_SUBPIXEL_RENDERING` is
* not defined in your build of the library.
*
* @since:
* 2.3.0
*/
FT_EXPORT( FT_Error )
FT_Library_SetLcdFilter( FT_Library library,
FT_LcdFilter filter );
/**************************************************************************
*
* @function:
* FT_Library_SetLcdFilterWeights
*
* @description:
* This function can be used to enable LCD filter with custom weights,
* instead of using presets in @FT_Library_SetLcdFilter.
*
* @input:
* library ::
* A handle to the target library instance.
*
* weights ::
* A pointer to an array; the function copies the first five bytes and
* uses them to specify the filter weights in 1/256 units.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* This function does nothing but returns `FT_Err_Unimplemented_Feature`
* if the configuration macro `FT_CONFIG_OPTION_SUBPIXEL_RENDERING` is
* not defined in your build of the library.
*
* LCD filter weights can also be set per face using @FT_Face_Properties
* with @FT_PARAM_TAG_LCD_FILTER_WEIGHTS.
*
* @since:
* 2.4.0
*/
FT_EXPORT( FT_Error )
FT_Library_SetLcdFilterWeights( FT_Library library,
unsigned char *weights );
/**************************************************************************
*
* @type:
* FT_LcdFiveTapFilter
*
* @description:
* A typedef for passing the five LCD filter weights to
* @FT_Face_Properties within an @FT_Parameter structure.
*
* @since:
* 2.8
*
*/
#define FT_LCD_FILTER_FIVE_TAPS 5
typedef FT_Byte FT_LcdFiveTapFilter[FT_LCD_FILTER_FIVE_TAPS];
/**************************************************************************
*
* @function:
* FT_Library_SetLcdGeometry
*
* @description:
* This function can be used to modify default positions of color
* subpixels, which controls Harmony LCD rendering.
*
* @input:
* library ::
* A handle to the target library instance.
*
* sub ::
* A pointer to an array of 3 vectors in 26.6 fractional pixel format;
* the function modifies the default values, see the note below.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* Subpixel geometry examples:
*
* - {{-21, 0}, {0, 0}, {21, 0}} is the default, corresponding to 3 color
* stripes shifted by a third of a pixel. This could be an RGB panel.
*
* - {{21, 0}, {0, 0}, {-21, 0}} looks the same as the default but can
* specify a BGR panel instead, while keeping the bitmap in the same
* RGB888 format.
*
* - {{0, 21}, {0, 0}, {0, -21}} is the vertical RGB, but the bitmap
* stays RGB888 as a result.
*
* - {{-11, 16}, {-11, -16}, {22, 0}} is a certain PenTile arrangement.
*
* This function does nothing and returns `FT_Err_Unimplemented_Feature`
* in the context of ClearType-style subpixel rendering when
* `FT_CONFIG_OPTION_SUBPIXEL_RENDERING` is defined in your build of the
* library.
*
* @since:
* 2.10.0
*/
FT_EXPORT( FT_Error )
FT_Library_SetLcdGeometry( FT_Library library,
FT_Vector sub[3] );
/* */
FT_END_HEADER
#endif /* FTLCDFIL_H_ */
/* END */

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/****************************************************************************
*
* ftlist.h
*
* Generic list support for FreeType (specification).
*
* Copyright (C) 1996-2024 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.
*
*/
/**************************************************************************
*
* This file implements functions relative to list processing. Its data
* structures are defined in `freetype.h`.
*
*/
#ifndef FTLIST_H_
#define FTLIST_H_
#include <freetype/freetype.h>
#ifdef FREETYPE_H
#error "freetype.h of FreeType 1 has been loaded!"
#error "Please fix the directory search order for header files"
#error "so that freetype.h of FreeType 2 is found first."
#endif
FT_BEGIN_HEADER
/**************************************************************************
*
* @section:
* list_processing
*
* @title:
* List Processing
*
* @abstract:
* Simple management of lists.
*
* @description:
* This section contains various definitions related to list processing
* using doubly-linked nodes.
*
* @order:
* FT_List
* FT_ListNode
* FT_ListRec
* FT_ListNodeRec
*
* FT_List_Add
* FT_List_Insert
* FT_List_Find
* FT_List_Remove
* FT_List_Up
* FT_List_Iterate
* FT_List_Iterator
* FT_List_Finalize
* FT_List_Destructor
*
*/
/**************************************************************************
*
* @function:
* FT_List_Find
*
* @description:
* Find the list node for a given listed object.
*
* @input:
* list ::
* A pointer to the parent list.
* data ::
* The address of the listed object.
*
* @return:
* List node. `NULL` if it wasn't found.
*/
FT_EXPORT( FT_ListNode )
FT_List_Find( FT_List list,
void* data );
/**************************************************************************
*
* @function:
* FT_List_Add
*
* @description:
* Append an element to the end of a list.
*
* @inout:
* list ::
* A pointer to the parent list.
* node ::
* The node to append.
*/
FT_EXPORT( void )
FT_List_Add( FT_List list,
FT_ListNode node );
/**************************************************************************
*
* @function:
* FT_List_Insert
*
* @description:
* Insert an element at the head of a list.
*
* @inout:
* list ::
* A pointer to parent list.
* node ::
* The node to insert.
*/
FT_EXPORT( void )
FT_List_Insert( FT_List list,
FT_ListNode node );
/**************************************************************************
*
* @function:
* FT_List_Remove
*
* @description:
* Remove a node from a list. This function doesn't check whether the
* node is in the list!
*
* @input:
* node ::
* The node to remove.
*
* @inout:
* list ::
* A pointer to the parent list.
*/
FT_EXPORT( void )
FT_List_Remove( FT_List list,
FT_ListNode node );
/**************************************************************************
*
* @function:
* FT_List_Up
*
* @description:
* Move a node to the head/top of a list. Used to maintain LRU lists.
*
* @inout:
* list ::
* A pointer to the parent list.
* node ::
* The node to move.
*/
FT_EXPORT( void )
FT_List_Up( FT_List list,
FT_ListNode node );
/**************************************************************************
*
* @functype:
* FT_List_Iterator
*
* @description:
* An FT_List iterator function that is called during a list parse by
* @FT_List_Iterate.
*
* @input:
* node ::
* The current iteration list node.
*
* user ::
* A typeless pointer passed to @FT_List_Iterate. Can be used to point
* to the iteration's state.
*/
typedef FT_Error
(*FT_List_Iterator)( FT_ListNode node,
void* user );
/**************************************************************************
*
* @function:
* FT_List_Iterate
*
* @description:
* Parse a list and calls a given iterator function on each element.
* Note that parsing is stopped as soon as one of the iterator calls
* returns a non-zero value.
*
* @input:
* list ::
* A handle to the list.
* iterator ::
* An iterator function, called on each node of the list.
* user ::
* A user-supplied field that is passed as the second argument to the
* iterator.
*
* @return:
* The result (a FreeType error code) of the last iterator call.
*/
FT_EXPORT( FT_Error )
FT_List_Iterate( FT_List list,
FT_List_Iterator iterator,
void* user );
/**************************************************************************
*
* @functype:
* FT_List_Destructor
*
* @description:
* An @FT_List iterator function that is called during a list
* finalization by @FT_List_Finalize to destroy all elements in a given
* list.
*
* @input:
* system ::
* The current system object.
*
* data ::
* The current object to destroy.
*
* user ::
* A typeless pointer passed to @FT_List_Iterate. It can be used to
* point to the iteration's state.
*/
typedef void
(*FT_List_Destructor)( FT_Memory memory,
void* data,
void* user );
/**************************************************************************
*
* @function:
* FT_List_Finalize
*
* @description:
* Destroy all elements in the list as well as the list itself.
*
* @input:
* list ::
* A handle to the list.
*
* destroy ::
* A list destructor that will be applied to each element of the list.
* Set this to `NULL` if not needed.
*
* memory ::
* The current memory object that handles deallocation.
*
* user ::
* A user-supplied field that is passed as the last argument to the
* destructor.
*
* @note:
* This function expects that all nodes added by @FT_List_Add or
* @FT_List_Insert have been dynamically allocated.
*/
FT_EXPORT( void )
FT_List_Finalize( FT_List list,
FT_List_Destructor destroy,
FT_Memory memory,
void* user );
/* */
FT_END_HEADER
#endif /* FTLIST_H_ */
/* END */

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/****************************************************************************
*
* ftlogging.h
*
* Additional debugging APIs.
*
* Copyright (C) 2020-2024 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.
*
*/
#ifndef FTLOGGING_H_
#define FTLOGGING_H_
#include <ft2build.h>
#include FT_CONFIG_CONFIG_H
FT_BEGIN_HEADER
/**************************************************************************
*
* @section:
* debugging_apis
*
* @title:
* External Debugging APIs
*
* @abstract:
* Public APIs to control the `FT_DEBUG_LOGGING` macro.
*
* @description:
* This section contains the declarations of public functions that
* enables fine control of what the `FT_DEBUG_LOGGING` macro outputs.
*
*/
/**************************************************************************
*
* @function:
* FT_Trace_Set_Level
*
* @description:
* Change the levels of tracing components of FreeType at run time.
*
* @input:
* tracing_level ::
* New tracing value.
*
* @example:
* The following call makes FreeType trace everything but the 'memory'
* component.
*
* ```
* FT_Trace_Set_Level( "any:7 memory:0" );
* ```
*
* @note:
* This function does nothing if compilation option `FT_DEBUG_LOGGING`
* isn't set.
*
* @since:
* 2.11
*
*/
FT_EXPORT( void )
FT_Trace_Set_Level( const char* tracing_level );
/**************************************************************************
*
* @function:
* FT_Trace_Set_Default_Level
*
* @description:
* Reset tracing value of FreeType's components to the default value
* (i.e., to the value of the `FT2_DEBUG` environment value or to NULL
* if `FT2_DEBUG` is not set).
*
* @note:
* This function does nothing if compilation option `FT_DEBUG_LOGGING`
* isn't set.
*
* @since:
* 2.11
*
*/
FT_EXPORT( void )
FT_Trace_Set_Default_Level( void );
/**************************************************************************
*
* @functype:
* FT_Custom_Log_Handler
*
* @description:
* A function typedef that is used to handle the logging of tracing and
* debug messages on a file system.
*
* @input:
* ft_component ::
* The name of `FT_COMPONENT` from which the current debug or error
* message is produced.
*
* fmt ::
* Actual debug or tracing message.
*
* args::
* Arguments of debug or tracing messages.
*
* @since:
* 2.11
*
*/
typedef void
(*FT_Custom_Log_Handler)( const char* ft_component,
const char* fmt,
va_list args );
/**************************************************************************
*
* @function:
* FT_Set_Log_Handler
*
* @description:
* A function to set a custom log handler.
*
* @input:
* handler ::
* New logging function.
*
* @note:
* This function does nothing if compilation option `FT_DEBUG_LOGGING`
* isn't set.
*
* @since:
* 2.11
*
*/
FT_EXPORT( void )
FT_Set_Log_Handler( FT_Custom_Log_Handler handler );
/**************************************************************************
*
* @function:
* FT_Set_Default_Log_Handler
*
* @description:
* A function to undo the effect of @FT_Set_Log_Handler, resetting the
* log handler to FreeType's built-in version.
*
* @note:
* This function does nothing if compilation option `FT_DEBUG_LOGGING`
* isn't set.
*
* @since:
* 2.11
*
*/
FT_EXPORT( void )
FT_Set_Default_Log_Handler( void );
/* */
FT_END_HEADER
#endif /* FTLOGGING_H_ */
/* END */

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/****************************************************************************
*
* ftlzw.h
*
* LZW-compressed stream support.
*
* Copyright (C) 2004-2024 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.
*
*/
#ifndef FTLZW_H_
#define FTLZW_H_
#include <freetype/freetype.h>
#ifdef FREETYPE_H
#error "freetype.h of FreeType 1 has been loaded!"
#error "Please fix the directory search order for header files"
#error "so that freetype.h of FreeType 2 is found first."
#endif
FT_BEGIN_HEADER
/**************************************************************************
*
* @section:
* lzw
*
* @title:
* LZW Streams
*
* @abstract:
* Using LZW-compressed font files.
*
* @description:
* In certain builds of the library, LZW compression recognition is
* automatically handled when calling @FT_New_Face or @FT_Open_Face.
* This means that if no font driver is capable of handling the raw
* compressed file, the library will try to open a LZW stream from it and
* re-open the face with it.
*
* The stream implementation is very basic and resets the decompression
* process each time seeking backwards is needed within the stream,
* which significantly undermines the performance.
*
* This section contains the declaration of LZW-specific functions.
*
*/
/**************************************************************************
*
* @function:
* FT_Stream_OpenLZW
*
* @description:
* Open a new stream to parse LZW-compressed font files. This is mainly
* used to support the compressed `*.pcf.Z` fonts that come with XFree86.
*
* @input:
* stream ::
* The target embedding stream.
*
* source ::
* The source stream.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* The source stream must be opened _before_ calling this function.
*
* Calling the internal function `FT_Stream_Close` on the new stream will
* **not** call `FT_Stream_Close` on the source stream. None of the
* stream objects will be released to the heap.
*
* This function may return `FT_Err_Unimplemented_Feature` if your build
* of FreeType was not compiled with LZW support.
*/
FT_EXPORT( FT_Error )
FT_Stream_OpenLZW( FT_Stream stream,
FT_Stream source );
/* */
FT_END_HEADER
#endif /* FTLZW_H_ */
/* END */

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/****************************************************************************
*
* ftmac.h
*
* Additional Mac-specific API.
*
* Copyright (C) 1996-2024 by
* Just van Rossum, 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.
*
*/
/****************************************************************************
*
* NOTE: Include this file after `FT_FREETYPE_H` and after any
* Mac-specific headers (because this header uses Mac types such as
* 'Handle', 'FSSpec', 'FSRef', etc.)
*
*/
#ifndef FTMAC_H_
#define FTMAC_H_
FT_BEGIN_HEADER
/* gcc-3.1 and later can warn about functions tagged as deprecated */
#ifndef FT_DEPRECATED_ATTRIBUTE
#if defined( __GNUC__ ) && \
( ( __GNUC__ >= 4 ) || \
( ( __GNUC__ == 3 ) && ( __GNUC_MINOR__ >= 1 ) ) )
#define FT_DEPRECATED_ATTRIBUTE __attribute__(( deprecated ))
#else
#define FT_DEPRECATED_ATTRIBUTE
#endif
#endif
/**************************************************************************
*
* @section:
* mac_specific
*
* @title:
* Mac Specific Interface
*
* @abstract:
* Only available on the Macintosh.
*
* @description:
* The following definitions are only available if FreeType is compiled
* on a Macintosh.
*
*/
/**************************************************************************
*
* @function:
* FT_New_Face_From_FOND
*
* @description:
* Create a new face object from a FOND resource.
*
* @inout:
* library ::
* A handle to the library resource.
*
* @input:
* fond ::
* A FOND resource.
*
* face_index ::
* Only supported for the -1 'sanity check' special case.
*
* @output:
* aface ::
* A handle to a new face object.
*
* @return:
* FreeType error code. 0~means success.
*
* @example:
* This function can be used to create @FT_Face objects from fonts that
* are installed in the system as follows.
*
* ```
* fond = GetResource( 'FOND', fontName );
* error = FT_New_Face_From_FOND( library, fond, 0, &face );
* ```
*/
FT_EXPORT( FT_Error )
FT_New_Face_From_FOND( FT_Library library,
Handle fond,
FT_Long face_index,
FT_Face *aface )
FT_DEPRECATED_ATTRIBUTE;
/**************************************************************************
*
* @function:
* FT_GetFile_From_Mac_Name
*
* @description:
* Return an FSSpec for the disk file containing the named font.
*
* @input:
* fontName ::
* Mac OS name of the font (e.g., Times New Roman Bold).
*
* @output:
* pathSpec ::
* FSSpec to the file. For passing to @FT_New_Face_From_FSSpec.
*
* face_index ::
* Index of the face. For passing to @FT_New_Face_From_FSSpec.
*
* @return:
* FreeType error code. 0~means success.
*/
FT_EXPORT( FT_Error )
FT_GetFile_From_Mac_Name( const char* fontName,
FSSpec* pathSpec,
FT_Long* face_index )
FT_DEPRECATED_ATTRIBUTE;
/**************************************************************************
*
* @function:
* FT_GetFile_From_Mac_ATS_Name
*
* @description:
* Return an FSSpec for the disk file containing the named font.
*
* @input:
* fontName ::
* Mac OS name of the font in ATS framework.
*
* @output:
* pathSpec ::
* FSSpec to the file. For passing to @FT_New_Face_From_FSSpec.
*
* face_index ::
* Index of the face. For passing to @FT_New_Face_From_FSSpec.
*
* @return:
* FreeType error code. 0~means success.
*/
FT_EXPORT( FT_Error )
FT_GetFile_From_Mac_ATS_Name( const char* fontName,
FSSpec* pathSpec,
FT_Long* face_index )
FT_DEPRECATED_ATTRIBUTE;
/**************************************************************************
*
* @function:
* FT_GetFilePath_From_Mac_ATS_Name
*
* @description:
* Return a pathname of the disk file and face index for given font name
* that is handled by ATS framework.
*
* @input:
* fontName ::
* Mac OS name of the font in ATS framework.
*
* @output:
* path ::
* Buffer to store pathname of the file. For passing to @FT_New_Face.
* The client must allocate this buffer before calling this function.
*
* maxPathSize ::
* Lengths of the buffer `path` that client allocated.
*
* face_index ::
* Index of the face. For passing to @FT_New_Face.
*
* @return:
* FreeType error code. 0~means success.
*/
FT_EXPORT( FT_Error )
FT_GetFilePath_From_Mac_ATS_Name( const char* fontName,
UInt8* path,
UInt32 maxPathSize,
FT_Long* face_index )
FT_DEPRECATED_ATTRIBUTE;
/**************************************************************************
*
* @function:
* FT_New_Face_From_FSSpec
*
* @description:
* Create a new face object from a given resource and typeface index
* using an FSSpec to the font file.
*
* @inout:
* library ::
* A handle to the library resource.
*
* @input:
* spec ::
* FSSpec to the font file.
*
* face_index ::
* The index of the face within the resource. The first face has
* index~0.
* @output:
* aface ::
* A handle to a new face object.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* @FT_New_Face_From_FSSpec is identical to @FT_New_Face except it
* accepts an FSSpec instead of a path.
*/
FT_EXPORT( FT_Error )
FT_New_Face_From_FSSpec( FT_Library library,
const FSSpec *spec,
FT_Long face_index,
FT_Face *aface )
FT_DEPRECATED_ATTRIBUTE;
/**************************************************************************
*
* @function:
* FT_New_Face_From_FSRef
*
* @description:
* Create a new face object from a given resource and typeface index
* using an FSRef to the font file.
*
* @inout:
* library ::
* A handle to the library resource.
*
* @input:
* spec ::
* FSRef to the font file.
*
* face_index ::
* The index of the face within the resource. The first face has
* index~0.
* @output:
* aface ::
* A handle to a new face object.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* @FT_New_Face_From_FSRef is identical to @FT_New_Face except it accepts
* an FSRef instead of a path.
*/
FT_EXPORT( FT_Error )
FT_New_Face_From_FSRef( FT_Library library,
const FSRef *ref,
FT_Long face_index,
FT_Face *aface )
FT_DEPRECATED_ATTRIBUTE;
/* */
FT_END_HEADER
#endif /* FTMAC_H_ */
/* END */

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/****************************************************************************
*
* ftmm.h
*
* FreeType Multiple Master font interface (specification).
*
* Copyright (C) 1996-2024 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.
*
*/
#ifndef FTMM_H_
#define FTMM_H_
#include <freetype/freetype.h>
#ifdef FREETYPE_H
#error "freetype.h of FreeType 1 has been loaded!"
#error "Please fix the directory search order for header files"
#error "so that freetype.h of FreeType 2 is found first."
#endif
FT_BEGIN_HEADER
/**************************************************************************
*
* @section:
* multiple_masters
*
* @title:
* Multiple Masters
*
* @abstract:
* How to manage Multiple Masters fonts.
*
* @description:
* The following types and functions are used to manage Multiple Master
* fonts, i.e., the selection of specific design instances by setting
* design axis coordinates.
*
* Besides Adobe MM fonts, the interface supports Apple's TrueType GX and
* OpenType variation fonts. Some of the routines only work with Adobe
* MM fonts, others will work with all three types. They are similar
* enough that a consistent interface makes sense.
*
* For Adobe MM fonts, macro @FT_IS_SFNT returns false. For GX and
* OpenType variation fonts, it returns true.
*
*/
/**************************************************************************
*
* @enum:
* T1_MAX_MM_XXX
*
* @description:
* Multiple Masters limits as defined in their specifications.
*
* @values:
* T1_MAX_MM_AXIS ::
* The maximum number of Multiple Masters axes.
*
* T1_MAX_MM_DESIGNS ::
* The maximum number of Multiple Masters designs.
*
* T1_MAX_MM_MAP_POINTS ::
* The maximum number of elements in a design map.
*
*/
#define T1_MAX_MM_AXIS 4
#define T1_MAX_MM_DESIGNS 16
#define T1_MAX_MM_MAP_POINTS 20
/**************************************************************************
*
* @struct:
* FT_MM_Axis
*
* @description:
* A structure to model a given axis in design space for Multiple Masters
* fonts.
*
* This structure can't be used for TrueType GX or OpenType variation
* fonts.
*
* @fields:
* name ::
* The axis's name.
*
* minimum ::
* The axis's minimum design coordinate.
*
* maximum ::
* The axis's maximum design coordinate.
*/
typedef struct FT_MM_Axis_
{
FT_String* name;
FT_Long minimum;
FT_Long maximum;
} FT_MM_Axis;
/**************************************************************************
*
* @struct:
* FT_Multi_Master
*
* @description:
* A structure to model the axes and space of a Multiple Masters font.
*
* This structure can't be used for TrueType GX or OpenType variation
* fonts.
*
* @fields:
* num_axis ::
* Number of axes. Cannot exceed~4.
*
* num_designs ::
* Number of designs; should be normally 2^num_axis even though the
* Type~1 specification strangely allows for intermediate designs to be
* present. This number cannot exceed~16.
*
* axis ::
* A table of axis descriptors.
*/
typedef struct FT_Multi_Master_
{
FT_UInt num_axis;
FT_UInt num_designs;
FT_MM_Axis axis[T1_MAX_MM_AXIS];
} FT_Multi_Master;
/**************************************************************************
*
* @struct:
* FT_Var_Axis
*
* @description:
* A structure to model a given axis in design space for Multiple
* Masters, TrueType GX, and OpenType variation fonts.
*
* @fields:
* name ::
* The axis's name. Not always meaningful for TrueType GX or OpenType
* variation fonts.
*
* minimum ::
* The axis's minimum design coordinate.
*
* def ::
* The axis's default design coordinate. FreeType computes meaningful
* default values for Adobe MM fonts.
*
* maximum ::
* The axis's maximum design coordinate.
*
* tag ::
* The axis's tag (the equivalent to 'name' for TrueType GX and
* OpenType variation fonts). FreeType provides default values for
* Adobe MM fonts if possible.
*
* strid ::
* The axis name entry in the font's 'name' table. This is another
* (and often better) version of the 'name' field for TrueType GX or
* OpenType variation fonts. Not meaningful for Adobe MM fonts.
*
* @note:
* The fields `minimum`, `def`, and `maximum` are 16.16 fractional values
* for TrueType GX and OpenType variation fonts. For Adobe MM fonts, the
* values are whole numbers (i.e., the fractional part is zero).
*/
typedef struct FT_Var_Axis_
{
FT_String* name;
FT_Fixed minimum;
FT_Fixed def;
FT_Fixed maximum;
FT_ULong tag;
FT_UInt strid;
} FT_Var_Axis;
/**************************************************************************
*
* @struct:
* FT_Var_Named_Style
*
* @description:
* A structure to model a named instance in a TrueType GX or OpenType
* variation font.
*
* This structure can't be used for Adobe MM fonts.
*
* @fields:
* coords ::
* The design coordinates for this instance. This is an array with one
* entry for each axis.
*
* strid ::
* The entry in 'name' table identifying this instance.
*
* psid ::
* The entry in 'name' table identifying a PostScript name for this
* instance. Value 0xFFFF indicates a missing entry.
*/
typedef struct FT_Var_Named_Style_
{
FT_Fixed* coords;
FT_UInt strid;
FT_UInt psid; /* since 2.7.1 */
} FT_Var_Named_Style;
/**************************************************************************
*
* @struct:
* FT_MM_Var
*
* @description:
* A structure to model the axes and space of an Adobe MM, TrueType GX,
* or OpenType variation font.
*
* Some fields are specific to one format and not to the others.
*
* @fields:
* num_axis ::
* The number of axes. The maximum value is~4 for Adobe MM fonts; no
* limit in TrueType GX or OpenType variation fonts.
*
* num_designs ::
* The number of designs; should be normally 2^num_axis for Adobe MM
* fonts. Not meaningful for TrueType GX or OpenType variation fonts
* (where every glyph could have a different number of designs).
*
* num_namedstyles ::
* The number of named styles; a 'named style' is a tuple of design
* coordinates that has a string ID (in the 'name' table) associated
* with it. The font can tell the user that, for example,
* [Weight=1.5,Width=1.1] is 'Bold'. Another name for 'named style' is
* 'named instance'.
*
* For Adobe Multiple Masters fonts, this value is always zero because
* the format does not support named styles.
*
* axis ::
* An axis descriptor table. TrueType GX and OpenType variation fonts
* contain slightly more data than Adobe MM fonts. Memory management
* of this pointer is done internally by FreeType.
*
* namedstyle ::
* A named style (instance) table. Only meaningful for TrueType GX and
* OpenType variation fonts. Memory management of this pointer is done
* internally by FreeType.
*/
typedef struct FT_MM_Var_
{
FT_UInt num_axis;
FT_UInt num_designs;
FT_UInt num_namedstyles;
FT_Var_Axis* axis;
FT_Var_Named_Style* namedstyle;
} FT_MM_Var;
/**************************************************************************
*
* @function:
* FT_Get_Multi_Master
*
* @description:
* Retrieve a variation descriptor of a given Adobe MM font.
*
* This function can't be used with TrueType GX or OpenType variation
* fonts.
*
* @input:
* face ::
* A handle to the source face.
*
* @output:
* amaster ::
* The Multiple Masters descriptor.
*
* @return:
* FreeType error code. 0~means success.
*/
FT_EXPORT( FT_Error )
FT_Get_Multi_Master( FT_Face face,
FT_Multi_Master *amaster );
/**************************************************************************
*
* @function:
* FT_Get_MM_Var
*
* @description:
* Retrieve a variation descriptor for a given font.
*
* This function works with all supported variation formats.
*
* @input:
* face ::
* A handle to the source face.
*
* @output:
* amaster ::
* The variation descriptor. Allocates a data structure, which the
* user must deallocate with a call to @FT_Done_MM_Var after use.
*
* @return:
* FreeType error code. 0~means success.
*/
FT_EXPORT( FT_Error )
FT_Get_MM_Var( FT_Face face,
FT_MM_Var* *amaster );
/**************************************************************************
*
* @function:
* FT_Done_MM_Var
*
* @description:
* Free the memory allocated by @FT_Get_MM_Var.
*
* @input:
* library ::
* A handle of the face's parent library object that was used in the
* call to @FT_Get_MM_Var to create `amaster`.
*
* @return:
* FreeType error code. 0~means success.
*/
FT_EXPORT( FT_Error )
FT_Done_MM_Var( FT_Library library,
FT_MM_Var *amaster );
/**************************************************************************
*
* @function:
* FT_Set_MM_Design_Coordinates
*
* @description:
* For Adobe MM fonts, choose an interpolated font design through design
* coordinates.
*
* This function can't be used with TrueType GX or OpenType variation
* fonts.
*
* @inout:
* face ::
* A handle to the source face.
*
* @input:
* num_coords ::
* The number of available design coordinates. If it is larger than
* the number of axes, ignore the excess values. If it is smaller than
* the number of axes, use default values for the remaining axes.
*
* coords ::
* An array of design coordinates.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* [Since 2.8.1] To reset all axes to the default values, call the
* function with `num_coords` set to zero and `coords` set to `NULL`.
*
* [Since 2.9] If `num_coords` is larger than zero, this function sets
* the @FT_FACE_FLAG_VARIATION bit in @FT_Face's `face_flags` field
* (i.e., @FT_IS_VARIATION will return true). If `num_coords` is zero,
* this bit flag gets unset.
*/
FT_EXPORT( FT_Error )
FT_Set_MM_Design_Coordinates( FT_Face face,
FT_UInt num_coords,
FT_Long* coords );
/**************************************************************************
*
* @function:
* FT_Set_Var_Design_Coordinates
*
* @description:
* Choose an interpolated font design through design coordinates.
*
* This function works with all supported variation formats.
*
* @inout:
* face ::
* A handle to the source face.
*
* @input:
* num_coords ::
* The number of available design coordinates. If it is larger than
* the number of axes, ignore the excess values. If it is smaller than
* the number of axes, use default values for the remaining axes.
*
* coords ::
* An array of design coordinates.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* The design coordinates are 16.16 fractional values for TrueType GX and
* OpenType variation fonts. For Adobe MM fonts, the values are supposed
* to be whole numbers (i.e., the fractional part is zero).
*
* [Since 2.8.1] To reset all axes to the default values, call the
* function with `num_coords` set to zero and `coords` set to `NULL`.
* [Since 2.9] 'Default values' means the currently selected named
* instance (or the base font if no named instance is selected).
*
* [Since 2.9] If `num_coords` is larger than zero, this function sets
* the @FT_FACE_FLAG_VARIATION bit in @FT_Face's `face_flags` field
* (i.e., @FT_IS_VARIATION will return true). If `num_coords` is zero,
* this bit flag gets unset.
*/
FT_EXPORT( FT_Error )
FT_Set_Var_Design_Coordinates( FT_Face face,
FT_UInt num_coords,
FT_Fixed* coords );
/**************************************************************************
*
* @function:
* FT_Get_Var_Design_Coordinates
*
* @description:
* Get the design coordinates of the currently selected interpolated
* font.
*
* This function works with all supported variation formats.
*
* @input:
* face ::
* A handle to the source face.
*
* num_coords ::
* The number of design coordinates to retrieve. If it is larger than
* the number of axes, set the excess values to~0.
*
* @output:
* coords ::
* The design coordinates array.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* The design coordinates are 16.16 fractional values for TrueType GX and
* OpenType variation fonts. For Adobe MM fonts, the values are whole
* numbers (i.e., the fractional part is zero).
*
* @since:
* 2.7.1
*/
FT_EXPORT( FT_Error )
FT_Get_Var_Design_Coordinates( FT_Face face,
FT_UInt num_coords,
FT_Fixed* coords );
/**************************************************************************
*
* @function:
* FT_Set_MM_Blend_Coordinates
*
* @description:
* Choose an interpolated font design through normalized blend
* coordinates.
*
* This function works with all supported variation formats.
*
* @inout:
* face ::
* A handle to the source face.
*
* @input:
* num_coords ::
* The number of available design coordinates. If it is larger than
* the number of axes, ignore the excess values. If it is smaller than
* the number of axes, use default values for the remaining axes.
*
* coords ::
* The design coordinates array. Each element is a 16.16 fractional
* value and must be between 0 and 1.0 for Adobe MM fonts, and between
* -1.0 and 1.0 for TrueType GX and OpenType variation fonts.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* [Since 2.8.1] To reset all axes to the default values, call the
* function with `num_coords` set to zero and `coords` set to `NULL`.
* [Since 2.9] 'Default values' means the currently selected named
* instance (or the base font if no named instance is selected).
*
* [Since 2.9] If `num_coords` is larger than zero, this function sets
* the @FT_FACE_FLAG_VARIATION bit in @FT_Face's `face_flags` field
* (i.e., @FT_IS_VARIATION will return true). If `num_coords` is zero,
* this bit flag gets unset.
*/
FT_EXPORT( FT_Error )
FT_Set_MM_Blend_Coordinates( FT_Face face,
FT_UInt num_coords,
FT_Fixed* coords );
/**************************************************************************
*
* @function:
* FT_Get_MM_Blend_Coordinates
*
* @description:
* Get the normalized blend coordinates of the currently selected
* interpolated font.
*
* This function works with all supported variation formats.
*
* @input:
* face ::
* A handle to the source face.
*
* num_coords ::
* The number of normalized blend coordinates to retrieve. If it is
* larger than the number of axes, set the excess values to~0.5 for
* Adobe MM fonts, and to~0 for TrueType GX and OpenType variation
* fonts.
*
* @output:
* coords ::
* The normalized blend coordinates array (as 16.16 fractional values).
*
* @return:
* FreeType error code. 0~means success.
*
* @since:
* 2.7.1
*/
FT_EXPORT( FT_Error )
FT_Get_MM_Blend_Coordinates( FT_Face face,
FT_UInt num_coords,
FT_Fixed* coords );
/**************************************************************************
*
* @function:
* FT_Set_Var_Blend_Coordinates
*
* @description:
* This is another name of @FT_Set_MM_Blend_Coordinates.
*/
FT_EXPORT( FT_Error )
FT_Set_Var_Blend_Coordinates( FT_Face face,
FT_UInt num_coords,
FT_Fixed* coords );
/**************************************************************************
*
* @function:
* FT_Get_Var_Blend_Coordinates
*
* @description:
* This is another name of @FT_Get_MM_Blend_Coordinates.
*
* @since:
* 2.7.1
*/
FT_EXPORT( FT_Error )
FT_Get_Var_Blend_Coordinates( FT_Face face,
FT_UInt num_coords,
FT_Fixed* coords );
/**************************************************************************
*
* @function:
* FT_Set_MM_WeightVector
*
* @description:
* For Adobe MM fonts, choose an interpolated font design by directly
* setting the weight vector.
*
* This function can't be used with TrueType GX or OpenType variation
* fonts.
*
* @inout:
* face ::
* A handle to the source face.
*
* @input:
* len ::
* The length of the weight vector array. If it is larger than the
* number of designs, the extra values are ignored. If it is less than
* the number of designs, the remaining values are set to zero.
*
* weightvector ::
* An array representing the weight vector.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* Adobe Multiple Master fonts limit the number of designs, and thus the
* length of the weight vector to 16~elements.
*
* If `len` is larger than zero, this function sets the
* @FT_FACE_FLAG_VARIATION bit in @FT_Face's `face_flags` field (i.e.,
* @FT_IS_VARIATION will return true). If `len` is zero, this bit flag
* is unset and the weight vector array is reset to the default values.
*
* The Adobe documentation also states that the values in the
* WeightVector array must total 1.0 +/-~0.001. In practice this does
* not seem to be enforced, so is not enforced here, either.
*
* @since:
* 2.10
*/
FT_EXPORT( FT_Error )
FT_Set_MM_WeightVector( FT_Face face,
FT_UInt len,
FT_Fixed* weightvector );
/**************************************************************************
*
* @function:
* FT_Get_MM_WeightVector
*
* @description:
* For Adobe MM fonts, retrieve the current weight vector of the font.
*
* This function can't be used with TrueType GX or OpenType variation
* fonts.
*
* @inout:
* face ::
* A handle to the source face.
*
* len ::
* A pointer to the size of the array to be filled. If the size of the
* array is less than the number of designs, `FT_Err_Invalid_Argument`
* is returned, and `len` is set to the required size (the number of
* designs). If the size of the array is greater than the number of
* designs, the remaining entries are set to~0. On successful
* completion, `len` is set to the number of designs (i.e., the number
* of values written to the array).
*
* @output:
* weightvector ::
* An array to be filled.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* Adobe Multiple Master fonts limit the number of designs, and thus the
* length of the WeightVector to~16.
*
* @since:
* 2.10
*/
FT_EXPORT( FT_Error )
FT_Get_MM_WeightVector( FT_Face face,
FT_UInt* len,
FT_Fixed* weightvector );
/**************************************************************************
*
* @enum:
* FT_VAR_AXIS_FLAG_XXX
*
* @description:
* A list of bit flags used in the return value of
* @FT_Get_Var_Axis_Flags.
*
* @values:
* FT_VAR_AXIS_FLAG_HIDDEN ::
* The variation axis should not be exposed to user interfaces.
*
* @since:
* 2.8.1
*/
#define FT_VAR_AXIS_FLAG_HIDDEN 1
/**************************************************************************
*
* @function:
* FT_Get_Var_Axis_Flags
*
* @description:
* Get the 'flags' field of an OpenType Variation Axis Record.
*
* Not meaningful for Adobe MM fonts (`*flags` is always zero).
*
* @input:
* master ::
* The variation descriptor.
*
* axis_index ::
* The index of the requested variation axis.
*
* @output:
* flags ::
* The 'flags' field. See @FT_VAR_AXIS_FLAG_XXX for possible values.
*
* @return:
* FreeType error code. 0~means success.
*
* @since:
* 2.8.1
*/
FT_EXPORT( FT_Error )
FT_Get_Var_Axis_Flags( FT_MM_Var* master,
FT_UInt axis_index,
FT_UInt* flags );
/**************************************************************************
*
* @function:
* FT_Set_Named_Instance
*
* @description:
* Set or change the current named instance.
*
* @input:
* face ::
* A handle to the source face.
*
* instance_index ::
* The index of the requested instance, starting with value 1. If set
* to value 0, FreeType switches to font access without a named
* instance.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* The function uses the value of `instance_index` to set bits 16-30 of
* the face's `face_index` field. It also resets any variation applied
* to the font, and the @FT_FACE_FLAG_VARIATION bit of the face's
* `face_flags` field gets reset to zero (i.e., @FT_IS_VARIATION will
* return false).
*
* For Adobe MM fonts (which don't have named instances) this function
* simply resets the current face to the default instance.
*
* @since:
* 2.9
*/
FT_EXPORT( FT_Error )
FT_Set_Named_Instance( FT_Face face,
FT_UInt instance_index );
/**************************************************************************
*
* @function:
* FT_Get_Default_Named_Instance
*
* @description:
* Retrieve the index of the default named instance, to be used with
* @FT_Set_Named_Instance.
*
* The default instance of a variation font is that instance for which
* the nth axis coordinate is equal to `axis[n].def` (as specified in the
* @FT_MM_Var structure), with~n covering all axes.
*
* FreeType synthesizes a named instance for the default instance if the
* font does not contain such an entry.
*
* @input:
* face ::
* A handle to the source face.
*
* @output:
* instance_index ::
* The index of the default named instance.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* For Adobe MM fonts (which don't have named instances) this function
* always returns zero for `instance_index`.
*
* @since:
* 2.13.1
*/
FT_EXPORT( FT_Error )
FT_Get_Default_Named_Instance( FT_Face face,
FT_UInt *instance_index );
/* */
FT_END_HEADER
#endif /* FTMM_H_ */
/* END */

807
arcs-sdk/modules/freetype/include/freetype/ftmodapi.h Normal file
View File

@@ -0,0 +1,807 @@
/****************************************************************************
*
* ftmodapi.h
*
* FreeType modules public interface (specification).
*
* Copyright (C) 1996-2024 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.
*
*/
#ifndef FTMODAPI_H_
#define FTMODAPI_H_
#include <freetype/freetype.h>
#ifdef FREETYPE_H
#error "freetype.h of FreeType 1 has been loaded!"
#error "Please fix the directory search order for header files"
#error "so that freetype.h of FreeType 2 is found first."
#endif
FT_BEGIN_HEADER
/**************************************************************************
*
* @section:
* module_management
*
* @title:
* Module Management
*
* @abstract:
* How to add, upgrade, remove, and control modules from FreeType.
*
* @description:
* The definitions below are used to manage modules within FreeType.
* Internal and external modules can be added, upgraded, and removed at
* runtime. For example, an alternative renderer or proprietary font
* driver can be registered and prioritized. Additionally, some module
* properties can also be controlled.
*
* Here is a list of existing values of the `module_name` field in the
* @FT_Module_Class structure.
*
* ```
* autofitter
* bdf
* cff
* gxvalid
* otvalid
* pcf
* pfr
* psaux
* pshinter
* psnames
* raster1
* sfnt
* smooth
* truetype
* type1
* type42
* t1cid
* winfonts
* ```
*
* Note that the FreeType Cache sub-system is not a FreeType module.
*
* @order:
* FT_Module
* FT_Module_Constructor
* FT_Module_Destructor
* FT_Module_Requester
* FT_Module_Class
*
* FT_Add_Module
* FT_Get_Module
* FT_Remove_Module
* FT_Add_Default_Modules
*
* FT_FACE_DRIVER_NAME
* FT_Property_Set
* FT_Property_Get
* FT_Set_Default_Properties
*
* FT_New_Library
* FT_Done_Library
* FT_Reference_Library
*
* FT_Renderer
* FT_Renderer_Class
*
* FT_Get_Renderer
* FT_Set_Renderer
*
* FT_Set_Debug_Hook
*
*/
/* module bit flags */
#define FT_MODULE_FONT_DRIVER 1 /* this module is a font driver */
#define FT_MODULE_RENDERER 2 /* this module is a renderer */
#define FT_MODULE_HINTER 4 /* this module is a glyph hinter */
#define FT_MODULE_STYLER 8 /* this module is a styler */
#define FT_MODULE_DRIVER_SCALABLE 0x100 /* the driver supports */
/* scalable fonts */
#define FT_MODULE_DRIVER_NO_OUTLINES 0x200 /* the driver does not */
/* support vector outlines */
#define FT_MODULE_DRIVER_HAS_HINTER 0x400 /* the driver provides its */
/* own hinter */
#define FT_MODULE_DRIVER_HINTS_LIGHTLY 0x800 /* the driver's hinter */
/* produces LIGHT hints */
/* deprecated values */
#define ft_module_font_driver FT_MODULE_FONT_DRIVER
#define ft_module_renderer FT_MODULE_RENDERER
#define ft_module_hinter FT_MODULE_HINTER
#define ft_module_styler FT_MODULE_STYLER
#define ft_module_driver_scalable FT_MODULE_DRIVER_SCALABLE
#define ft_module_driver_no_outlines FT_MODULE_DRIVER_NO_OUTLINES
#define ft_module_driver_has_hinter FT_MODULE_DRIVER_HAS_HINTER
#define ft_module_driver_hints_lightly FT_MODULE_DRIVER_HINTS_LIGHTLY
typedef FT_Pointer FT_Module_Interface;
/**************************************************************************
*
* @functype:
* FT_Module_Constructor
*
* @description:
* A function used to initialize (not create) a new module object.
*
* @input:
* module ::
* The module to initialize.
*/
typedef FT_Error
(*FT_Module_Constructor)( FT_Module module );
/**************************************************************************
*
* @functype:
* FT_Module_Destructor
*
* @description:
* A function used to finalize (not destroy) a given module object.
*
* @input:
* module ::
* The module to finalize.
*/
typedef void
(*FT_Module_Destructor)( FT_Module module );
/**************************************************************************
*
* @functype:
* FT_Module_Requester
*
* @description:
* A function used to query a given module for a specific interface.
*
* @input:
* module ::
* The module to be searched.
*
* name ::
* The name of the interface in the module.
*/
typedef FT_Module_Interface
(*FT_Module_Requester)( FT_Module module,
const char* name );
/**************************************************************************
*
* @struct:
* FT_Module_Class
*
* @description:
* The module class descriptor. While being a public structure necessary
* for FreeType's module bookkeeping, most of the fields are essentially
* internal, not to be used directly by an application.
*
* @fields:
* module_flags ::
* Bit flags describing the module.
*
* module_size ::
* The size of one module object/instance in bytes.
*
* module_name ::
* The name of the module.
*
* module_version ::
* The version, as a 16.16 fixed number (major.minor).
*
* module_requires ::
* The version of FreeType this module requires, as a 16.16 fixed
* number (major.minor). Starts at version 2.0, i.e., 0x20000.
*
* module_interface ::
* A typeless pointer to a structure (which varies between different
* modules) that holds the module's interface functions. This is
* essentially what `get_interface` returns.
*
* module_init ::
* The initializing function.
*
* module_done ::
* The finalizing function.
*
* get_interface ::
* The interface requesting function.
*/
typedef struct FT_Module_Class_
{
FT_ULong module_flags;
FT_Long module_size;
const FT_String* module_name;
FT_Fixed module_version;
FT_Fixed module_requires;
const void* module_interface;
FT_Module_Constructor module_init;
FT_Module_Destructor module_done;
FT_Module_Requester get_interface;
} FT_Module_Class;
/**************************************************************************
*
* @function:
* FT_Add_Module
*
* @description:
* Add a new module to a given library instance.
*
* @inout:
* library ::
* A handle to the library object.
*
* @input:
* clazz ::
* A pointer to class descriptor for the module.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* An error will be returned if a module already exists by that name, or
* if the module requires a version of FreeType that is too great.
*/
FT_EXPORT( FT_Error )
FT_Add_Module( FT_Library library,
const FT_Module_Class* clazz );
/**************************************************************************
*
* @function:
* FT_Get_Module
*
* @description:
* Find a module by its name.
*
* @input:
* library ::
* A handle to the library object.
*
* module_name ::
* The module's name (as an ASCII string).
*
* @return:
* A module handle. 0~if none was found.
*
* @note:
* FreeType's internal modules aren't documented very well, and you
* should look up the source code for details.
*/
FT_EXPORT( FT_Module )
FT_Get_Module( FT_Library library,
const char* module_name );
/**************************************************************************
*
* @function:
* FT_Remove_Module
*
* @description:
* Remove a given module from a library instance.
*
* @inout:
* library ::
* A handle to a library object.
*
* @input:
* module ::
* A handle to a module object.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* The module object is destroyed by the function in case of success.
*/
FT_EXPORT( FT_Error )
FT_Remove_Module( FT_Library library,
FT_Module module );
/**************************************************************************
*
* @macro:
* FT_FACE_DRIVER_NAME
*
* @description:
* A macro that retrieves the name of a font driver from a face object.
*
* @note:
* The font driver name is a valid `module_name` for @FT_Property_Set
* and @FT_Property_Get. This is not the same as @FT_Get_Font_Format.
*
* @since:
* 2.11
*
*/
#define FT_FACE_DRIVER_NAME( face ) \
( ( *FT_REINTERPRET_CAST( FT_Module_Class**, \
( face )->driver ) )->module_name )
/**************************************************************************
*
* @function:
* FT_Property_Set
*
* @description:
* Set a property for a given module.
*
* @input:
* library ::
* A handle to the library the module is part of.
*
* module_name ::
* The module name.
*
* property_name ::
* The property name. Properties are described in section
* @properties.
*
* Note that only a few modules have properties.
*
* value ::
* A generic pointer to a variable or structure that gives the new
* value of the property. The exact definition of `value` is
* dependent on the property; see section @properties.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* If `module_name` isn't a valid module name, or `property_name`
* doesn't specify a valid property, or if `value` doesn't represent a
* valid value for the given property, an error is returned.
*
* The following example sets property 'bar' (a simple integer) in
* module 'foo' to value~1.
*
* ```
* FT_UInt bar;
*
*
* bar = 1;
* FT_Property_Set( library, "foo", "bar", &bar );
* ```
*
* Note that the FreeType Cache sub-system doesn't recognize module
* property changes. To avoid glyph lookup confusion within the cache
* you should call @FTC_Manager_Reset to completely flush the cache if a
* module property gets changed after @FTC_Manager_New has been called.
*
* It is not possible to set properties of the FreeType Cache sub-system
* itself with FT_Property_Set; use @FTC_Property_Set instead.
*
* @since:
* 2.4.11
*
*/
FT_EXPORT( FT_Error )
FT_Property_Set( FT_Library library,
const FT_String* module_name,
const FT_String* property_name,
const void* value );
/**************************************************************************
*
* @function:
* FT_Property_Get
*
* @description:
* Get a module's property value.
*
* @input:
* library ::
* A handle to the library the module is part of.
*
* module_name ::
* The module name.
*
* property_name ::
* The property name. Properties are described in section
* @properties.
*
* @inout:
* value ::
* A generic pointer to a variable or structure that gives the value
* of the property. The exact definition of `value` is dependent on
* the property; see section @properties.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* If `module_name` isn't a valid module name, or `property_name`
* doesn't specify a valid property, or if `value` doesn't represent a
* valid value for the given property, an error is returned.
*
* The following example gets property 'baz' (a range) in module 'foo'.
*
* ```
* typedef range_
* {
* FT_Int32 min;
* FT_Int32 max;
*
* } range;
*
* range baz;
*
*
* FT_Property_Get( library, "foo", "baz", &baz );
* ```
*
* It is not possible to retrieve properties of the FreeType Cache
* sub-system with FT_Property_Get; use @FTC_Property_Get instead.
*
* @since:
* 2.4.11
*
*/
FT_EXPORT( FT_Error )
FT_Property_Get( FT_Library library,
const FT_String* module_name,
const FT_String* property_name,
void* value );
/**************************************************************************
*
* @function:
* FT_Set_Default_Properties
*
* @description:
* If compilation option `FT_CONFIG_OPTION_ENVIRONMENT_PROPERTIES` is
* set, this function reads the `FREETYPE_PROPERTIES` environment
* variable to control driver properties. See section @properties for
* more.
*
* If the compilation option is not set, this function does nothing.
*
* `FREETYPE_PROPERTIES` has the following syntax form (broken here into
* multiple lines for better readability).
*
* ```
* <optional whitespace>
* <module-name1> ':'
* <property-name1> '=' <property-value1>
* <whitespace>
* <module-name2> ':'
* <property-name2> '=' <property-value2>
* ...
* ```
*
* Example:
*
* ```
* FREETYPE_PROPERTIES=truetype:interpreter-version=35 \
* cff:no-stem-darkening=0
* ```
*
* @inout:
* library ::
* A handle to a new library object.
*
* @since:
* 2.8
*/
FT_EXPORT( void )
FT_Set_Default_Properties( FT_Library library );
/**************************************************************************
*
* @function:
* FT_Reference_Library
*
* @description:
* A counter gets initialized to~1 at the time an @FT_Library structure
* is created. This function increments the counter. @FT_Done_Library
* then only destroys a library if the counter is~1, otherwise it simply
* decrements the counter.
*
* This function helps in managing life-cycles of structures that
* reference @FT_Library objects.
*
* @input:
* library ::
* A handle to a target library object.
*
* @return:
* FreeType error code. 0~means success.
*
* @since:
* 2.4.2
*/
FT_EXPORT( FT_Error )
FT_Reference_Library( FT_Library library );
/**************************************************************************
*
* @function:
* FT_New_Library
*
* @description:
* This function is used to create a new FreeType library instance from a
* given memory object. It is thus possible to use libraries with
* distinct memory allocators within the same program. Note, however,
* that the used @FT_Memory structure is expected to remain valid for the
* life of the @FT_Library object.
*
* Normally, you would call this function (followed by a call to
* @FT_Add_Default_Modules or a series of calls to @FT_Add_Module, and a
* call to @FT_Set_Default_Properties) instead of @FT_Init_FreeType to
* initialize the FreeType library.
*
* Don't use @FT_Done_FreeType but @FT_Done_Library to destroy a library
* instance.
*
* @input:
* memory ::
* A handle to the original memory object.
*
* @output:
* alibrary ::
* A pointer to handle of a new library object.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* See the discussion of reference counters in the description of
* @FT_Reference_Library.
*/
FT_EXPORT( FT_Error )
FT_New_Library( FT_Memory memory,
FT_Library *alibrary );
/**************************************************************************
*
* @function:
* FT_Done_Library
*
* @description:
* Discard a given library object. This closes all drivers and discards
* all resource objects.
*
* @input:
* library ::
* A handle to the target library.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* See the discussion of reference counters in the description of
* @FT_Reference_Library.
*/
FT_EXPORT( FT_Error )
FT_Done_Library( FT_Library library );
/**************************************************************************
*
* @functype:
* FT_DebugHook_Func
*
* @description:
* A drop-in replacement (or rather a wrapper) for the bytecode or
* charstring interpreter's main loop function.
*
* Its job is essentially
*
* - to activate debug mode to enforce single-stepping,
*
* - to call the main loop function to interpret the next opcode, and
*
* - to show the changed context to the user.
*
* An example for such a main loop function is `TT_RunIns` (declared in
* FreeType's internal header file `src/truetype/ttinterp.h`).
*
* Have a look at the source code of the `ttdebug` FreeType demo program
* for an example of a drop-in replacement.
*
* @inout:
* arg ::
* A typeless pointer, to be cast to the main loop function's data
* structure (which depends on the font module). For TrueType fonts
* it is bytecode interpreter's execution context, `TT_ExecContext`,
* which is declared in FreeType's internal header file `tttypes.h`.
*/
typedef FT_Error
(*FT_DebugHook_Func)( void* arg );
/**************************************************************************
*
* @enum:
* FT_DEBUG_HOOK_XXX
*
* @description:
* A list of named debug hook indices.
*
* @values:
* FT_DEBUG_HOOK_TRUETYPE::
* This hook index identifies the TrueType bytecode debugger.
*/
#define FT_DEBUG_HOOK_TRUETYPE 0
/**************************************************************************
*
* @function:
* FT_Set_Debug_Hook
*
* @description:
* Set a debug hook function for debugging the interpreter of a font
* format.
*
* While this is a public API function, an application needs access to
* FreeType's internal header files to do something useful.
*
* Have a look at the source code of the `ttdebug` FreeType demo program
* for an example of its usage.
*
* @inout:
* library ::
* A handle to the library object.
*
* @input:
* hook_index ::
* The index of the debug hook. You should use defined enumeration
* macros like @FT_DEBUG_HOOK_TRUETYPE.
*
* debug_hook ::
* The function used to debug the interpreter.
*
* @note:
* Currently, four debug hook slots are available, but only one (for the
* TrueType interpreter) is defined.
*/
FT_EXPORT( void )
FT_Set_Debug_Hook( FT_Library library,
FT_UInt hook_index,
FT_DebugHook_Func debug_hook );
/**************************************************************************
*
* @function:
* FT_Add_Default_Modules
*
* @description:
* Add the set of default drivers to a given library object. This is
* only useful when you create a library object with @FT_New_Library
* (usually to plug a custom memory manager).
*
* @inout:
* library ::
* A handle to a new library object.
*/
FT_EXPORT( void )
FT_Add_Default_Modules( FT_Library library );
/**************************************************************************
*
* @section:
* truetype_engine
*
* @title:
* The TrueType Engine
*
* @abstract:
* TrueType bytecode support.
*
* @description:
* This section contains a function used to query the level of TrueType
* bytecode support compiled in this version of the library.
*
*/
/**************************************************************************
*
* @enum:
* FT_TrueTypeEngineType
*
* @description:
* A list of values describing which kind of TrueType bytecode engine is
* implemented in a given FT_Library instance. It is used by the
* @FT_Get_TrueType_Engine_Type function.
*
* @values:
* FT_TRUETYPE_ENGINE_TYPE_NONE ::
* The library doesn't implement any kind of bytecode interpreter.
*
* FT_TRUETYPE_ENGINE_TYPE_UNPATENTED ::
* Deprecated and removed.
*
* FT_TRUETYPE_ENGINE_TYPE_PATENTED ::
* The library implements a bytecode interpreter that covers the full
* instruction set of the TrueType virtual machine (this was governed
* by patents until May 2010, hence the name).
*
* @since:
* 2.2
*
*/
typedef enum FT_TrueTypeEngineType_
{
FT_TRUETYPE_ENGINE_TYPE_NONE = 0,
FT_TRUETYPE_ENGINE_TYPE_UNPATENTED,
FT_TRUETYPE_ENGINE_TYPE_PATENTED
} FT_TrueTypeEngineType;
/**************************************************************************
*
* @function:
* FT_Get_TrueType_Engine_Type
*
* @description:
* Return an @FT_TrueTypeEngineType value to indicate which level of the
* TrueType virtual machine a given library instance supports.
*
* @input:
* library ::
* A library instance.
*
* @return:
* A value indicating which level is supported.
*
* @since:
* 2.2
*
*/
FT_EXPORT( FT_TrueTypeEngineType )
FT_Get_TrueType_Engine_Type( FT_Library library );
/* */
FT_END_HEADER
#endif /* FTMODAPI_H_ */
/* END */

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/****************************************************************************
*
* ftmoderr.h
*
* FreeType module error offsets (specification).
*
* Copyright (C) 2001-2024 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.
*
*/
/**************************************************************************
*
* This file is used to define the FreeType module error codes.
*
* If the macro `FT_CONFIG_OPTION_USE_MODULE_ERRORS` in `ftoption.h` is
* set, the lower byte of an error value identifies the error code as
* usual. In addition, the higher byte identifies the module. For
* example, the error `FT_Err_Invalid_File_Format` has value 0x0003, the
* error `TT_Err_Invalid_File_Format` has value 0x1303, the error
* `T1_Err_Invalid_File_Format` has value 0x1403, etc.
*
* Note that `FT_Err_Ok`, `TT_Err_Ok`, etc. are always equal to zero,
* including the high byte.
*
* If `FT_CONFIG_OPTION_USE_MODULE_ERRORS` isn't set, the higher byte of an
* error value is set to zero.
*
* To hide the various `XXX_Err_` prefixes in the source code, FreeType
* provides some macros in `fttypes.h`.
*
* FT_ERR( err )
*
* Add current error module prefix (as defined with the `FT_ERR_PREFIX`
* macro) to `err`. For example, in the BDF module the line
*
* ```
* error = FT_ERR( Invalid_Outline );
* ```
*
* expands to
*
* ```
* error = BDF_Err_Invalid_Outline;
* ```
*
* For simplicity, you can always use `FT_Err_Ok` directly instead of
* `FT_ERR( Ok )`.
*
* FT_ERR_EQ( errcode, err )
* FT_ERR_NEQ( errcode, err )
*
* Compare error code `errcode` with the error `err` for equality and
* inequality, respectively. Example:
*
* ```
* if ( FT_ERR_EQ( error, Invalid_Outline ) )
* ...
* ```
*
* Using this macro you don't have to think about error prefixes. Of
* course, if module errors are not active, the above example is the
* same as
*
* ```
* if ( error == FT_Err_Invalid_Outline )
* ...
* ```
*
* FT_ERROR_BASE( errcode )
* FT_ERROR_MODULE( errcode )
*
* Get base error and module error code, respectively.
*
* It can also be used to create a module error message table easily with
* something like
*
* ```
* #undef FTMODERR_H_
* #define FT_MODERRDEF( e, v, s ) { FT_Mod_Err_ ## e, s },
* #define FT_MODERR_START_LIST {
* #define FT_MODERR_END_LIST { 0, 0 } };
*
* const struct
* {
* int mod_err_offset;
* const char* mod_err_msg
* } ft_mod_errors[] =
*
* #include <freetype/ftmoderr.h>
* ```
*
*/
#ifndef FTMODERR_H_
#define FTMODERR_H_
/*******************************************************************/
/*******************************************************************/
/***** *****/
/***** SETUP MACROS *****/
/***** *****/
/*******************************************************************/
/*******************************************************************/
#undef FT_NEED_EXTERN_C
#ifndef FT_MODERRDEF
#ifdef FT_CONFIG_OPTION_USE_MODULE_ERRORS
#define FT_MODERRDEF( e, v, s ) FT_Mod_Err_ ## e = v,
#else
#define FT_MODERRDEF( e, v, s ) FT_Mod_Err_ ## e = 0,
#endif
#define FT_MODERR_START_LIST enum {
#define FT_MODERR_END_LIST FT_Mod_Err_Max };
#ifdef __cplusplus
#define FT_NEED_EXTERN_C
extern "C" {
#endif
#endif /* !FT_MODERRDEF */
/*******************************************************************/
/*******************************************************************/
/***** *****/
/***** LIST MODULE ERROR BASES *****/
/***** *****/
/*******************************************************************/
/*******************************************************************/
#ifdef FT_MODERR_START_LIST
FT_MODERR_START_LIST
#endif
FT_MODERRDEF( Base, 0x000, "base module" )
FT_MODERRDEF( Autofit, 0x100, "autofitter module" )
FT_MODERRDEF( BDF, 0x200, "BDF module" )
FT_MODERRDEF( Bzip2, 0x300, "Bzip2 module" )
FT_MODERRDEF( Cache, 0x400, "cache module" )
FT_MODERRDEF( CFF, 0x500, "CFF module" )
FT_MODERRDEF( CID, 0x600, "CID module" )
FT_MODERRDEF( Gzip, 0x700, "Gzip module" )
FT_MODERRDEF( LZW, 0x800, "LZW module" )
FT_MODERRDEF( OTvalid, 0x900, "OpenType validation module" )
FT_MODERRDEF( PCF, 0xA00, "PCF module" )
FT_MODERRDEF( PFR, 0xB00, "PFR module" )
FT_MODERRDEF( PSaux, 0xC00, "PS auxiliary module" )
FT_MODERRDEF( PShinter, 0xD00, "PS hinter module" )
FT_MODERRDEF( PSnames, 0xE00, "PS names module" )
FT_MODERRDEF( Raster, 0xF00, "raster module" )
FT_MODERRDEF( SFNT, 0x1000, "SFNT module" )
FT_MODERRDEF( Smooth, 0x1100, "smooth raster module" )
FT_MODERRDEF( TrueType, 0x1200, "TrueType module" )
FT_MODERRDEF( Type1, 0x1300, "Type 1 module" )
FT_MODERRDEF( Type42, 0x1400, "Type 42 module" )
FT_MODERRDEF( Winfonts, 0x1500, "Windows FON/FNT module" )
FT_MODERRDEF( GXvalid, 0x1600, "GX validation module" )
FT_MODERRDEF( Sdf, 0x1700, "Signed distance field raster module" )
#ifdef FT_MODERR_END_LIST
FT_MODERR_END_LIST
#endif
/*******************************************************************/
/*******************************************************************/
/***** *****/
/***** CLEANUP *****/
/***** *****/
/*******************************************************************/
/*******************************************************************/
#ifdef FT_NEED_EXTERN_C
}
#endif
#undef FT_MODERR_START_LIST
#undef FT_MODERR_END_LIST
#undef FT_MODERRDEF
#undef FT_NEED_EXTERN_C
#endif /* FTMODERR_H_ */
/* END */

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/****************************************************************************
*
* ftotval.h
*
* FreeType API for validating OpenType tables (specification).
*
* Copyright (C) 2004-2024 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.
*
*/
/****************************************************************************
*
*
* Warning: This module might be moved to a different library in the
* future to avoid a tight dependency between FreeType and the
* OpenType specification.
*
*
*/
#ifndef FTOTVAL_H_
#define FTOTVAL_H_
#include <freetype/freetype.h>
#ifdef FREETYPE_H
#error "freetype.h of FreeType 1 has been loaded!"
#error "Please fix the directory search order for header files"
#error "so that freetype.h of FreeType 2 is found first."
#endif
FT_BEGIN_HEADER
/**************************************************************************
*
* @section:
* ot_validation
*
* @title:
* OpenType Validation
*
* @abstract:
* An API to validate OpenType tables.
*
* @description:
* This section contains the declaration of functions to validate some
* OpenType tables (BASE, GDEF, GPOS, GSUB, JSTF, MATH).
*
* @order:
* FT_OpenType_Validate
* FT_OpenType_Free
*
* FT_VALIDATE_OTXXX
*
*/
/**************************************************************************
*
* @enum:
* FT_VALIDATE_OTXXX
*
* @description:
* A list of bit-field constants used with @FT_OpenType_Validate to
* indicate which OpenType tables should be validated.
*
* @values:
* FT_VALIDATE_BASE ::
* Validate BASE table.
*
* FT_VALIDATE_GDEF ::
* Validate GDEF table.
*
* FT_VALIDATE_GPOS ::
* Validate GPOS table.
*
* FT_VALIDATE_GSUB ::
* Validate GSUB table.
*
* FT_VALIDATE_JSTF ::
* Validate JSTF table.
*
* FT_VALIDATE_MATH ::
* Validate MATH table.
*
* FT_VALIDATE_OT ::
* Validate all OpenType tables (BASE, GDEF, GPOS, GSUB, JSTF, MATH).
*
*/
#define FT_VALIDATE_BASE 0x0100
#define FT_VALIDATE_GDEF 0x0200
#define FT_VALIDATE_GPOS 0x0400
#define FT_VALIDATE_GSUB 0x0800
#define FT_VALIDATE_JSTF 0x1000
#define FT_VALIDATE_MATH 0x2000
#define FT_VALIDATE_OT ( FT_VALIDATE_BASE | \
FT_VALIDATE_GDEF | \
FT_VALIDATE_GPOS | \
FT_VALIDATE_GSUB | \
FT_VALIDATE_JSTF | \
FT_VALIDATE_MATH )
/**************************************************************************
*
* @function:
* FT_OpenType_Validate
*
* @description:
* Validate various OpenType tables to assure that all offsets and
* indices are valid. The idea is that a higher-level library that
* actually does the text layout can access those tables without error
* checking (which can be quite time consuming).
*
* @input:
* face ::
* A handle to the input face.
*
* validation_flags ::
* A bit field that specifies the tables to be validated. See
* @FT_VALIDATE_OTXXX for possible values.
*
* @output:
* BASE_table ::
* A pointer to the BASE table.
*
* GDEF_table ::
* A pointer to the GDEF table.
*
* GPOS_table ::
* A pointer to the GPOS table.
*
* GSUB_table ::
* A pointer to the GSUB table.
*
* JSTF_table ::
* A pointer to the JSTF table.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* This function only works with OpenType fonts, returning an error
* otherwise.
*
* After use, the application should deallocate the five tables with
* @FT_OpenType_Free. A `NULL` value indicates that the table either
* doesn't exist in the font, or the application hasn't asked for
* validation.
*/
FT_EXPORT( FT_Error )
FT_OpenType_Validate( FT_Face face,
FT_UInt validation_flags,
FT_Bytes *BASE_table,
FT_Bytes *GDEF_table,
FT_Bytes *GPOS_table,
FT_Bytes *GSUB_table,
FT_Bytes *JSTF_table );
/**************************************************************************
*
* @function:
* FT_OpenType_Free
*
* @description:
* Free the buffer allocated by OpenType validator.
*
* @input:
* face ::
* A handle to the input face.
*
* table ::
* The pointer to the buffer that is allocated by
* @FT_OpenType_Validate.
*
* @note:
* This function must be used to free the buffer allocated by
* @FT_OpenType_Validate only.
*/
FT_EXPORT( void )
FT_OpenType_Free( FT_Face face,
FT_Bytes table );
/* */
FT_END_HEADER
#endif /* FTOTVAL_H_ */
/* END */

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/****************************************************************************
*
* ftoutln.h
*
* Support for the FT_Outline type used to store glyph shapes of
* most scalable font formats (specification).
*
* Copyright (C) 1996-2024 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.
*
*/
#ifndef FTOUTLN_H_
#define FTOUTLN_H_
#include <freetype/freetype.h>
#ifdef FREETYPE_H
#error "freetype.h of FreeType 1 has been loaded!"
#error "Please fix the directory search order for header files"
#error "so that freetype.h of FreeType 2 is found first."
#endif
FT_BEGIN_HEADER
/**************************************************************************
*
* @section:
* outline_processing
*
* @title:
* Outline Processing
*
* @abstract:
* Functions to create, transform, and render vectorial glyph images.
*
* @description:
* This section contains routines used to create and destroy scalable
* glyph images known as 'outlines'. These can also be measured,
* transformed, and converted into bitmaps and pixmaps.
*
* @order:
* FT_Outline
* FT_Outline_New
* FT_Outline_Done
* FT_Outline_Copy
* FT_Outline_Translate
* FT_Outline_Transform
* FT_Outline_Embolden
* FT_Outline_EmboldenXY
* FT_Outline_Reverse
* FT_Outline_Check
*
* FT_Outline_Get_CBox
* FT_Outline_Get_BBox
*
* FT_Outline_Get_Bitmap
* FT_Outline_Render
* FT_Outline_Decompose
* FT_Outline_Funcs
* FT_Outline_MoveToFunc
* FT_Outline_LineToFunc
* FT_Outline_ConicToFunc
* FT_Outline_CubicToFunc
*
* FT_Orientation
* FT_Outline_Get_Orientation
*
* FT_OUTLINE_XXX
*
*/
/**************************************************************************
*
* @function:
* FT_Outline_Decompose
*
* @description:
* Walk over an outline's structure to decompose it into individual
* segments and Bezier arcs. This function also emits 'move to'
* operations to indicate the start of new contours in the outline.
*
* @input:
* outline ::
* A pointer to the source target.
*
* func_interface ::
* A table of 'emitters', i.e., function pointers called during
* decomposition to indicate path operations.
*
* @inout:
* user ::
* A typeless pointer that is passed to each emitter during the
* decomposition. It can be used to store the state during the
* decomposition.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* Degenerate contours, segments, and Bezier arcs may be reported. In
* most cases, it is best to filter these out before using the outline
* for stroking or other path modification purposes (which may cause
* degenerate segments to become non-degenerate and visible, like when
* stroke caps are used or the path is otherwise outset). Some glyph
* outlines may contain deliberate degenerate single points for mark
* attachement.
*
* Similarly, the function returns success for an empty outline also
* (doing nothing, that is, not calling any emitter); if necessary, you
* should filter this out, too.
*/
FT_EXPORT( FT_Error )
FT_Outline_Decompose( FT_Outline* outline,
const FT_Outline_Funcs* func_interface,
void* user );
/**************************************************************************
*
* @function:
* FT_Outline_New
*
* @description:
* Create a new outline of a given size.
*
* @input:
* library ::
* A handle to the library object from where the outline is allocated.
* Note however that the new outline will **not** necessarily be
* **freed**, when destroying the library, by @FT_Done_FreeType.
*
* numPoints ::
* The maximum number of points within the outline. Must be smaller
* than or equal to 0xFFFF (65535).
*
* numContours ::
* The maximum number of contours within the outline. This value must
* be in the range 0 to `numPoints`.
*
* @output:
* anoutline ::
* A handle to the new outline.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* The reason why this function takes a `library` parameter is simply to
* use the library's memory allocator.
*/
FT_EXPORT( FT_Error )
FT_Outline_New( FT_Library library,
FT_UInt numPoints,
FT_Int numContours,
FT_Outline *anoutline );
/**************************************************************************
*
* @function:
* FT_Outline_Done
*
* @description:
* Destroy an outline created with @FT_Outline_New.
*
* @input:
* library ::
* A handle of the library object used to allocate the outline.
*
* outline ::
* A pointer to the outline object to be discarded.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* If the outline's 'owner' field is not set, only the outline descriptor
* will be released.
*/
FT_EXPORT( FT_Error )
FT_Outline_Done( FT_Library library,
FT_Outline* outline );
/**************************************************************************
*
* @function:
* FT_Outline_Check
*
* @description:
* Check the contents of an outline descriptor.
*
* @input:
* outline ::
* A handle to a source outline.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* An empty outline, or an outline with a single point only is also
* valid.
*/
FT_EXPORT( FT_Error )
FT_Outline_Check( FT_Outline* outline );
/**************************************************************************
*
* @function:
* FT_Outline_Get_CBox
*
* @description:
* Return an outline's 'control box'. The control box encloses all the
* outline's points, including Bezier control points. Though it
* coincides with the exact bounding box for most glyphs, it can be
* slightly larger in some situations (like when rotating an outline that
* contains Bezier outside arcs).
*
* Computing the control box is very fast, while getting the bounding box
* can take much more time as it needs to walk over all segments and arcs
* in the outline. To get the latter, you can use the 'ftbbox'
* component, which is dedicated to this single task.
*
* @input:
* outline ::
* A pointer to the source outline descriptor.
*
* @output:
* acbox ::
* The outline's control box.
*
* @note:
* See @FT_Glyph_Get_CBox for a discussion of tricky fonts.
*/
FT_EXPORT( void )
FT_Outline_Get_CBox( const FT_Outline* outline,
FT_BBox *acbox );
/**************************************************************************
*
* @function:
* FT_Outline_Translate
*
* @description:
* Apply a simple translation to the points of an outline.
*
* @inout:
* outline ::
* A pointer to the target outline descriptor.
*
* @input:
* xOffset ::
* The horizontal offset.
*
* yOffset ::
* The vertical offset.
*/
FT_EXPORT( void )
FT_Outline_Translate( const FT_Outline* outline,
FT_Pos xOffset,
FT_Pos yOffset );
/**************************************************************************
*
* @function:
* FT_Outline_Copy
*
* @description:
* Copy an outline into another one. Both objects must have the same
* sizes (number of points & number of contours) when this function is
* called.
*
* @input:
* source ::
* A handle to the source outline.
*
* @output:
* target ::
* A handle to the target outline.
*
* @return:
* FreeType error code. 0~means success.
*/
FT_EXPORT( FT_Error )
FT_Outline_Copy( const FT_Outline* source,
FT_Outline *target );
/**************************************************************************
*
* @function:
* FT_Outline_Transform
*
* @description:
* Apply a simple 2x2 matrix to all of an outline's points. Useful for
* applying rotations, slanting, flipping, etc.
*
* @inout:
* outline ::
* A pointer to the target outline descriptor.
*
* @input:
* matrix ::
* A pointer to the transformation matrix.
*
* @note:
* You can use @FT_Outline_Translate if you need to translate the
* outline's points.
*/
FT_EXPORT( void )
FT_Outline_Transform( const FT_Outline* outline,
const FT_Matrix* matrix );
/**************************************************************************
*
* @function:
* FT_Outline_Embolden
*
* @description:
* Embolden an outline. The new outline will be at most 4~times
* `strength` pixels wider and higher. You may think of the left and
* bottom borders as unchanged.
*
* Negative `strength` values to reduce the outline thickness are
* possible also.
*
* @inout:
* outline ::
* A handle to the target outline.
*
* @input:
* strength ::
* How strong the glyph is emboldened. Expressed in 26.6 pixel format.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* The used algorithm to increase or decrease the thickness of the glyph
* doesn't change the number of points; this means that certain
* situations like acute angles or intersections are sometimes handled
* incorrectly.
*
* If you need 'better' metrics values you should call
* @FT_Outline_Get_CBox or @FT_Outline_Get_BBox.
*
* To get meaningful results, font scaling values must be set with
* functions like @FT_Set_Char_Size before calling FT_Render_Glyph.
*
* @example:
* ```
* FT_Load_Glyph( face, index, FT_LOAD_DEFAULT );
*
* if ( face->glyph->format == FT_GLYPH_FORMAT_OUTLINE )
* FT_Outline_Embolden( &face->glyph->outline, strength );
* ```
*
*/
FT_EXPORT( FT_Error )
FT_Outline_Embolden( FT_Outline* outline,
FT_Pos strength );
/**************************************************************************
*
* @function:
* FT_Outline_EmboldenXY
*
* @description:
* Embolden an outline. The new outline will be `xstrength` pixels wider
* and `ystrength` pixels higher. Otherwise, it is similar to
* @FT_Outline_Embolden, which uses the same strength in both directions.
*
* @since:
* 2.4.10
*/
FT_EXPORT( FT_Error )
FT_Outline_EmboldenXY( FT_Outline* outline,
FT_Pos xstrength,
FT_Pos ystrength );
/**************************************************************************
*
* @function:
* FT_Outline_Reverse
*
* @description:
* Reverse the drawing direction of an outline. This is used to ensure
* consistent fill conventions for mirrored glyphs.
*
* @inout:
* outline ::
* A pointer to the target outline descriptor.
*
* @note:
* This function toggles the bit flag @FT_OUTLINE_REVERSE_FILL in the
* outline's `flags` field.
*
* It shouldn't be used by a normal client application, unless it knows
* what it is doing.
*/
FT_EXPORT( void )
FT_Outline_Reverse( FT_Outline* outline );
/**************************************************************************
*
* @function:
* FT_Outline_Get_Bitmap
*
* @description:
* Render an outline within a bitmap. The outline's image is simply
* OR-ed to the target bitmap.
*
* @input:
* library ::
* A handle to a FreeType library object.
*
* outline ::
* A pointer to the source outline descriptor.
*
* @inout:
* abitmap ::
* A pointer to the target bitmap descriptor.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* This function does **not create** the bitmap, it only renders an
* outline image within the one you pass to it! Consequently, the
* various fields in `abitmap` should be set accordingly.
*
* It will use the raster corresponding to the default glyph format.
*
* The value of the `num_grays` field in `abitmap` is ignored. If you
* select the gray-level rasterizer, and you want less than 256 gray
* levels, you have to use @FT_Outline_Render directly.
*/
FT_EXPORT( FT_Error )
FT_Outline_Get_Bitmap( FT_Library library,
FT_Outline* outline,
const FT_Bitmap *abitmap );
/**************************************************************************
*
* @function:
* FT_Outline_Render
*
* @description:
* Render an outline within a bitmap using the current scan-convert.
*
* @input:
* library ::
* A handle to a FreeType library object.
*
* outline ::
* A pointer to the source outline descriptor.
*
* @inout:
* params ::
* A pointer to an @FT_Raster_Params structure used to describe the
* rendering operation.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* This advanced function uses @FT_Raster_Params as an argument.
* The field `params.source` will be set to `outline` before the scan
* converter is called, which means that the value you give to it is
* actually ignored. Either `params.target` must point to preallocated
* bitmap, or @FT_RASTER_FLAG_DIRECT must be set in `params.flags`
* allowing FreeType rasterizer to be used for direct composition,
* translucency, etc. See @FT_Raster_Params for more details.
*/
FT_EXPORT( FT_Error )
FT_Outline_Render( FT_Library library,
FT_Outline* outline,
FT_Raster_Params* params );
/**************************************************************************
*
* @enum:
* FT_Orientation
*
* @description:
* A list of values used to describe an outline's contour orientation.
*
* The TrueType and PostScript specifications use different conventions
* to determine whether outline contours should be filled or unfilled.
*
* @values:
* FT_ORIENTATION_TRUETYPE ::
* According to the TrueType specification, clockwise contours must be
* filled, and counter-clockwise ones must be unfilled.
*
* FT_ORIENTATION_POSTSCRIPT ::
* According to the PostScript specification, counter-clockwise
* contours must be filled, and clockwise ones must be unfilled.
*
* FT_ORIENTATION_FILL_RIGHT ::
* This is identical to @FT_ORIENTATION_TRUETYPE, but is used to
* remember that in TrueType, everything that is to the right of the
* drawing direction of a contour must be filled.
*
* FT_ORIENTATION_FILL_LEFT ::
* This is identical to @FT_ORIENTATION_POSTSCRIPT, but is used to
* remember that in PostScript, everything that is to the left of the
* drawing direction of a contour must be filled.
*
* FT_ORIENTATION_NONE ::
* The orientation cannot be determined. That is, different parts of
* the glyph have different orientation.
*
*/
typedef enum FT_Orientation_
{
FT_ORIENTATION_TRUETYPE = 0,
FT_ORIENTATION_POSTSCRIPT = 1,
FT_ORIENTATION_FILL_RIGHT = FT_ORIENTATION_TRUETYPE,
FT_ORIENTATION_FILL_LEFT = FT_ORIENTATION_POSTSCRIPT,
FT_ORIENTATION_NONE
} FT_Orientation;
/**************************************************************************
*
* @function:
* FT_Outline_Get_Orientation
*
* @description:
* This function analyzes a glyph outline and tries to compute its fill
* orientation (see @FT_Orientation). This is done by integrating the
* total area covered by the outline. The positive integral corresponds
* to the clockwise orientation and @FT_ORIENTATION_POSTSCRIPT is
* returned. The negative integral corresponds to the counter-clockwise
* orientation and @FT_ORIENTATION_TRUETYPE is returned.
*
* Note that this will return @FT_ORIENTATION_TRUETYPE for empty
* outlines.
*
* @input:
* outline ::
* A handle to the source outline.
*
* @return:
* The orientation.
*
*/
FT_EXPORT( FT_Orientation )
FT_Outline_Get_Orientation( FT_Outline* outline );
/* */
FT_END_HEADER
#endif /* FTOUTLN_H_ */
/* END */
/* Local Variables: */
/* coding: utf-8 */
/* End: */

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/****************************************************************************
*
* ftparams.h
*
* FreeType API for possible FT_Parameter tags (specification only).
*
* Copyright (C) 2017-2024 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.
*
*/
#ifndef FTPARAMS_H_
#define FTPARAMS_H_
#include <freetype/freetype.h>
#ifdef FREETYPE_H
#error "freetype.h of FreeType 1 has been loaded!"
#error "Please fix the directory search order for header files"
#error "so that freetype.h of FreeType 2 is found first."
#endif
FT_BEGIN_HEADER
/**************************************************************************
*
* @section:
* parameter_tags
*
* @title:
* Parameter Tags
*
* @abstract:
* Macros for driver property and font loading parameter tags.
*
* @description:
* This section contains macros for the @FT_Parameter structure that are
* used with various functions to activate some special functionality or
* different behaviour of various components of FreeType.
*
*/
/**************************************************************************
*
* @enum:
* FT_PARAM_TAG_IGNORE_TYPOGRAPHIC_FAMILY
*
* @description:
* A tag for @FT_Parameter to make @FT_Open_Face ignore typographic
* family names in the 'name' table (introduced in OpenType version 1.4).
* Use this for backward compatibility with legacy systems that have a
* four-faces-per-family restriction.
*
* @since:
* 2.8
*
*/
#define FT_PARAM_TAG_IGNORE_TYPOGRAPHIC_FAMILY \
FT_MAKE_TAG( 'i', 'g', 'p', 'f' )
/* this constant is deprecated */
#define FT_PARAM_TAG_IGNORE_PREFERRED_FAMILY \
FT_PARAM_TAG_IGNORE_TYPOGRAPHIC_FAMILY
/**************************************************************************
*
* @enum:
* FT_PARAM_TAG_IGNORE_TYPOGRAPHIC_SUBFAMILY
*
* @description:
* A tag for @FT_Parameter to make @FT_Open_Face ignore typographic
* subfamily names in the 'name' table (introduced in OpenType version
* 1.4). Use this for backward compatibility with legacy systems that
* have a four-faces-per-family restriction.
*
* @since:
* 2.8
*
*/
#define FT_PARAM_TAG_IGNORE_TYPOGRAPHIC_SUBFAMILY \
FT_MAKE_TAG( 'i', 'g', 'p', 's' )
/* this constant is deprecated */
#define FT_PARAM_TAG_IGNORE_PREFERRED_SUBFAMILY \
FT_PARAM_TAG_IGNORE_TYPOGRAPHIC_SUBFAMILY
/**************************************************************************
*
* @enum:
* FT_PARAM_TAG_INCREMENTAL
*
* @description:
* An @FT_Parameter tag to be used with @FT_Open_Face to indicate
* incremental glyph loading.
*
*/
#define FT_PARAM_TAG_INCREMENTAL \
FT_MAKE_TAG( 'i', 'n', 'c', 'r' )
/**************************************************************************
*
* @enum:
* FT_PARAM_TAG_IGNORE_SBIX
*
* @description:
* A tag for @FT_Parameter to make @FT_Open_Face ignore an 'sbix' table
* while loading a font. Use this if @FT_FACE_FLAG_SBIX is set and you
* want to access the outline glyphs in the font.
*
*/
#define FT_PARAM_TAG_IGNORE_SBIX \
FT_MAKE_TAG( 'i', 's', 'b', 'x' )
/**************************************************************************
*
* @enum:
* FT_PARAM_TAG_LCD_FILTER_WEIGHTS
*
* @description:
* An @FT_Parameter tag to be used with @FT_Face_Properties. The
* corresponding argument specifies the five LCD filter weights for a
* given face (if using @FT_LOAD_TARGET_LCD, for example), overriding the
* global default values or the values set up with
* @FT_Library_SetLcdFilterWeights.
*
* @since:
* 2.8
*
*/
#define FT_PARAM_TAG_LCD_FILTER_WEIGHTS \
FT_MAKE_TAG( 'l', 'c', 'd', 'f' )
/**************************************************************************
*
* @enum:
* FT_PARAM_TAG_RANDOM_SEED
*
* @description:
* An @FT_Parameter tag to be used with @FT_Face_Properties. The
* corresponding 32bit signed integer argument overrides the font
* driver's random seed value with a face-specific one; see @random-seed.
*
* @since:
* 2.8
*
*/
#define FT_PARAM_TAG_RANDOM_SEED \
FT_MAKE_TAG( 's', 'e', 'e', 'd' )
/**************************************************************************
*
* @enum:
* FT_PARAM_TAG_STEM_DARKENING
*
* @description:
* An @FT_Parameter tag to be used with @FT_Face_Properties. The
* corresponding Boolean argument specifies whether to apply stem
* darkening, overriding the global default values or the values set up
* with @FT_Property_Set (see @no-stem-darkening).
*
* This is a passive setting that only takes effect if the font driver or
* autohinter honors it, which the CFF, Type~1, and CID drivers always
* do, but the autohinter only in 'light' hinting mode (as of version
* 2.9).
*
* @since:
* 2.8
*
*/
#define FT_PARAM_TAG_STEM_DARKENING \
FT_MAKE_TAG( 'd', 'a', 'r', 'k' )
/**************************************************************************
*
* @enum:
* FT_PARAM_TAG_UNPATENTED_HINTING
*
* @description:
* Deprecated, no effect.
*
* Previously: A constant used as the tag of an @FT_Parameter structure
* to indicate that unpatented methods only should be used by the
* TrueType bytecode interpreter for a typeface opened by @FT_Open_Face.
*
*/
#define FT_PARAM_TAG_UNPATENTED_HINTING \
FT_MAKE_TAG( 'u', 'n', 'p', 'a' )
/* */
FT_END_HEADER
#endif /* FTPARAMS_H_ */
/* END */

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/****************************************************************************
*
* ftpfr.h
*
* FreeType API for accessing PFR-specific data (specification only).
*
* Copyright (C) 2002-2024 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.
*
*/
#ifndef FTPFR_H_
#define FTPFR_H_
#include <freetype/freetype.h>
#ifdef FREETYPE_H
#error "freetype.h of FreeType 1 has been loaded!"
#error "Please fix the directory search order for header files"
#error "so that freetype.h of FreeType 2 is found first."
#endif
FT_BEGIN_HEADER
/**************************************************************************
*
* @section:
* pfr_fonts
*
* @title:
* PFR Fonts
*
* @abstract:
* PFR/TrueDoc-specific API.
*
* @description:
* This section contains the declaration of PFR-specific functions.
*
*/
/**************************************************************************
*
* @function:
* FT_Get_PFR_Metrics
*
* @description:
* Return the outline and metrics resolutions of a given PFR face.
*
* @input:
* face ::
* Handle to the input face. It can be a non-PFR face.
*
* @output:
* aoutline_resolution ::
* Outline resolution. This is equivalent to `face->units_per_EM` for
* non-PFR fonts. Optional (parameter can be `NULL`).
*
* ametrics_resolution ::
* Metrics resolution. This is equivalent to `outline_resolution` for
* non-PFR fonts. Optional (parameter can be `NULL`).
*
* ametrics_x_scale ::
* A 16.16 fixed-point number used to scale distance expressed in
* metrics units to device subpixels. This is equivalent to
* `face->size->x_scale`, but for metrics only. Optional (parameter
* can be `NULL`).
*
* ametrics_y_scale ::
* Same as `ametrics_x_scale` but for the vertical direction.
* optional (parameter can be `NULL`).
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* If the input face is not a PFR, this function will return an error.
* However, in all cases, it will return valid values.
*/
FT_EXPORT( FT_Error )
FT_Get_PFR_Metrics( FT_Face face,
FT_UInt *aoutline_resolution,
FT_UInt *ametrics_resolution,
FT_Fixed *ametrics_x_scale,
FT_Fixed *ametrics_y_scale );
/**************************************************************************
*
* @function:
* FT_Get_PFR_Kerning
*
* @description:
* Return the kerning pair corresponding to two glyphs in a PFR face.
* The distance is expressed in metrics units, unlike the result of
* @FT_Get_Kerning.
*
* @input:
* face ::
* A handle to the input face.
*
* left ::
* Index of the left glyph.
*
* right ::
* Index of the right glyph.
*
* @output:
* avector ::
* A kerning vector.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* This function always return distances in original PFR metrics units.
* This is unlike @FT_Get_Kerning with the @FT_KERNING_UNSCALED mode,
* which always returns distances converted to outline units.
*
* You can use the value of the `x_scale` and `y_scale` parameters
* returned by @FT_Get_PFR_Metrics to scale these to device subpixels.
*/
FT_EXPORT( FT_Error )
FT_Get_PFR_Kerning( FT_Face face,
FT_UInt left,
FT_UInt right,
FT_Vector *avector );
/**************************************************************************
*
* @function:
* FT_Get_PFR_Advance
*
* @description:
* Return a given glyph advance, expressed in original metrics units,
* from a PFR font.
*
* @input:
* face ::
* A handle to the input face.
*
* gindex ::
* The glyph index.
*
* @output:
* aadvance ::
* The glyph advance in metrics units.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* You can use the `x_scale` or `y_scale` results of @FT_Get_PFR_Metrics
* to convert the advance to device subpixels (i.e., 1/64 of pixels).
*/
FT_EXPORT( FT_Error )
FT_Get_PFR_Advance( FT_Face face,
FT_UInt gindex,
FT_Pos *aadvance );
/* */
FT_END_HEADER
#endif /* FTPFR_H_ */
/* END */

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/****************************************************************************
*
* ftrender.h
*
* FreeType renderer modules public interface (specification).
*
* Copyright (C) 1996-2024 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.
*
*/
#ifndef FTRENDER_H_
#define FTRENDER_H_
#include <freetype/ftmodapi.h>
#include <freetype/ftglyph.h>
FT_BEGIN_HEADER
/**************************************************************************
*
* @section:
* module_management
*
*/
/* create a new glyph object */
typedef FT_Error
(*FT_Glyph_InitFunc)( FT_Glyph glyph,
FT_GlyphSlot slot );
/* destroys a given glyph object */
typedef void
(*FT_Glyph_DoneFunc)( FT_Glyph glyph );
typedef void
(*FT_Glyph_TransformFunc)( FT_Glyph glyph,
const FT_Matrix* matrix,
const FT_Vector* delta );
typedef void
(*FT_Glyph_GetBBoxFunc)( FT_Glyph glyph,
FT_BBox* abbox );
typedef FT_Error
(*FT_Glyph_CopyFunc)( FT_Glyph source,
FT_Glyph target );
typedef FT_Error
(*FT_Glyph_PrepareFunc)( FT_Glyph glyph,
FT_GlyphSlot slot );
/* deprecated */
#define FT_Glyph_Init_Func FT_Glyph_InitFunc
#define FT_Glyph_Done_Func FT_Glyph_DoneFunc
#define FT_Glyph_Transform_Func FT_Glyph_TransformFunc
#define FT_Glyph_BBox_Func FT_Glyph_GetBBoxFunc
#define FT_Glyph_Copy_Func FT_Glyph_CopyFunc
#define FT_Glyph_Prepare_Func FT_Glyph_PrepareFunc
struct FT_Glyph_Class_
{
FT_Long glyph_size;
FT_Glyph_Format glyph_format;
FT_Glyph_InitFunc glyph_init;
FT_Glyph_DoneFunc glyph_done;
FT_Glyph_CopyFunc glyph_copy;
FT_Glyph_TransformFunc glyph_transform;
FT_Glyph_GetBBoxFunc glyph_bbox;
FT_Glyph_PrepareFunc glyph_prepare;
};
typedef FT_Error
(*FT_Renderer_RenderFunc)( FT_Renderer renderer,
FT_GlyphSlot slot,
FT_Render_Mode mode,
const FT_Vector* origin );
typedef FT_Error
(*FT_Renderer_TransformFunc)( FT_Renderer renderer,
FT_GlyphSlot slot,
const FT_Matrix* matrix,
const FT_Vector* delta );
typedef void
(*FT_Renderer_GetCBoxFunc)( FT_Renderer renderer,
FT_GlyphSlot slot,
FT_BBox* cbox );
typedef FT_Error
(*FT_Renderer_SetModeFunc)( FT_Renderer renderer,
FT_ULong mode_tag,
FT_Pointer mode_ptr );
/* deprecated identifiers */
#define FTRenderer_render FT_Renderer_RenderFunc
#define FTRenderer_transform FT_Renderer_TransformFunc
#define FTRenderer_getCBox FT_Renderer_GetCBoxFunc
#define FTRenderer_setMode FT_Renderer_SetModeFunc
/**************************************************************************
*
* @struct:
* FT_Renderer_Class
*
* @description:
* The renderer module class descriptor.
*
* @fields:
* root ::
* The root @FT_Module_Class fields.
*
* glyph_format ::
* The glyph image format this renderer handles.
*
* render_glyph ::
* A method used to render the image that is in a given glyph slot into
* a bitmap.
*
* transform_glyph ::
* A method used to transform the image that is in a given glyph slot.
*
* get_glyph_cbox ::
* A method used to access the glyph's cbox.
*
* set_mode ::
* A method used to pass additional parameters.
*
* raster_class ::
* For @FT_GLYPH_FORMAT_OUTLINE renderers only. This is a pointer to
* its raster's class.
*/
typedef struct FT_Renderer_Class_
{
FT_Module_Class root;
FT_Glyph_Format glyph_format;
FT_Renderer_RenderFunc render_glyph;
FT_Renderer_TransformFunc transform_glyph;
FT_Renderer_GetCBoxFunc get_glyph_cbox;
FT_Renderer_SetModeFunc set_mode;
const FT_Raster_Funcs* raster_class;
} FT_Renderer_Class;
/**************************************************************************
*
* @function:
* FT_Get_Renderer
*
* @description:
* Retrieve the current renderer for a given glyph format.
*
* @input:
* library ::
* A handle to the library object.
*
* format ::
* The glyph format.
*
* @return:
* A renderer handle. 0~if none found.
*
* @note:
* An error will be returned if a module already exists by that name, or
* if the module requires a version of FreeType that is too great.
*
* To add a new renderer, simply use @FT_Add_Module. To retrieve a
* renderer by its name, use @FT_Get_Module.
*/
FT_EXPORT( FT_Renderer )
FT_Get_Renderer( FT_Library library,
FT_Glyph_Format format );
/**************************************************************************
*
* @function:
* FT_Set_Renderer
*
* @description:
* Set the current renderer to use, and set additional mode.
*
* @inout:
* library ::
* A handle to the library object.
*
* @input:
* renderer ::
* A handle to the renderer object.
*
* num_params ::
* The number of additional parameters.
*
* parameters ::
* Additional parameters.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* In case of success, the renderer will be used to convert glyph images
* in the renderer's known format into bitmaps.
*
* This doesn't change the current renderer for other formats.
*
* Currently, no FreeType renderer module uses `parameters`; you should
* thus always pass `NULL` as the value.
*/
FT_EXPORT( FT_Error )
FT_Set_Renderer( FT_Library library,
FT_Renderer renderer,
FT_UInt num_params,
FT_Parameter* parameters );
/* */
FT_END_HEADER
#endif /* FTRENDER_H_ */
/* END */

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/****************************************************************************
*
* ftsizes.h
*
* FreeType size objects management (specification).
*
* Copyright (C) 1996-2024 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.
*
*/
/**************************************************************************
*
* Typical application would normally not need to use these functions.
* However, they have been placed in a public API for the rare cases where
* they are needed.
*
*/
#ifndef FTSIZES_H_
#define FTSIZES_H_
#include <freetype/freetype.h>
#ifdef FREETYPE_H
#error "freetype.h of FreeType 1 has been loaded!"
#error "Please fix the directory search order for header files"
#error "so that freetype.h of FreeType 2 is found first."
#endif
FT_BEGIN_HEADER
/**************************************************************************
*
* @section:
* sizes_management
*
* @title:
* Size Management
*
* @abstract:
* Managing multiple sizes per face.
*
* @description:
* When creating a new face object (e.g., with @FT_New_Face), an @FT_Size
* object is automatically created and used to store all pixel-size
* dependent information, available in the `face->size` field.
*
* It is however possible to create more sizes for a given face, mostly
* in order to manage several character pixel sizes of the same font
* family and style. See @FT_New_Size and @FT_Done_Size.
*
* Note that @FT_Set_Pixel_Sizes and @FT_Set_Char_Size only modify the
* contents of the current 'active' size; you thus need to use
* @FT_Activate_Size to change it.
*
* 99% of applications won't need the functions provided here, especially
* if they use the caching sub-system, so be cautious when using these.
*
*/
/**************************************************************************
*
* @function:
* FT_New_Size
*
* @description:
* Create a new size object from a given face object.
*
* @input:
* face ::
* A handle to a parent face object.
*
* @output:
* asize ::
* A handle to a new size object.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* You need to call @FT_Activate_Size in order to select the new size for
* upcoming calls to @FT_Set_Pixel_Sizes, @FT_Set_Char_Size,
* @FT_Load_Glyph, @FT_Load_Char, etc.
*/
FT_EXPORT( FT_Error )
FT_New_Size( FT_Face face,
FT_Size* size );
/**************************************************************************
*
* @function:
* FT_Done_Size
*
* @description:
* Discard a given size object. Note that @FT_Done_Face automatically
* discards all size objects allocated with @FT_New_Size.
*
* @input:
* size ::
* A handle to a target size object.
*
* @return:
* FreeType error code. 0~means success.
*/
FT_EXPORT( FT_Error )
FT_Done_Size( FT_Size size );
/**************************************************************************
*
* @function:
* FT_Activate_Size
*
* @description:
* Even though it is possible to create several size objects for a given
* face (see @FT_New_Size for details), functions like @FT_Load_Glyph or
* @FT_Load_Char only use the one that has been activated last to
* determine the 'current character pixel size'.
*
* This function can be used to 'activate' a previously created size
* object.
*
* @input:
* size ::
* A handle to a target size object.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* If `face` is the size's parent face object, this function changes the
* value of `face->size` to the input size handle.
*/
FT_EXPORT( FT_Error )
FT_Activate_Size( FT_Size size );
/* */
FT_END_HEADER
#endif /* FTSIZES_H_ */
/* END */

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/****************************************************************************
*
* ftsnames.h
*
* Simple interface to access SFNT 'name' tables (which are used
* to hold font names, copyright info, notices, etc.) (specification).
*
* This is _not_ used to retrieve glyph names!
*
* Copyright (C) 1996-2024 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.
*
*/
#ifndef FTSNAMES_H_
#define FTSNAMES_H_
#include <freetype/freetype.h>
#include <freetype/ftparams.h>
#ifdef FREETYPE_H
#error "freetype.h of FreeType 1 has been loaded!"
#error "Please fix the directory search order for header files"
#error "so that freetype.h of FreeType 2 is found first."
#endif
FT_BEGIN_HEADER
/**************************************************************************
*
* @section:
* sfnt_names
*
* @title:
* SFNT Names
*
* @abstract:
* Access the names embedded in TrueType and OpenType files.
*
* @description:
* The TrueType and OpenType specifications allow the inclusion of a
* special names table ('name') in font files. This table contains
* textual (and internationalized) information regarding the font, like
* family name, copyright, version, etc.
*
* The definitions below are used to access them if available.
*
* Note that this has nothing to do with glyph names!
*
*/
/**************************************************************************
*
* @struct:
* FT_SfntName
*
* @description:
* A structure used to model an SFNT 'name' table entry.
*
* @fields:
* platform_id ::
* The platform ID for `string`. See @TT_PLATFORM_XXX for possible
* values.
*
* encoding_id ::
* The encoding ID for `string`. See @TT_APPLE_ID_XXX, @TT_MAC_ID_XXX,
* @TT_ISO_ID_XXX, @TT_MS_ID_XXX, and @TT_ADOBE_ID_XXX for possible
* values.
*
* language_id ::
* The language ID for `string`. See @TT_MAC_LANGID_XXX and
* @TT_MS_LANGID_XXX for possible values.
*
* Registered OpenType values for `language_id` are always smaller than
* 0x8000; values equal or larger than 0x8000 usually indicate a
* language tag string (introduced in OpenType version 1.6). Use
* function @FT_Get_Sfnt_LangTag with `language_id` as its argument to
* retrieve the associated language tag.
*
* name_id ::
* An identifier for `string`. See @TT_NAME_ID_XXX for possible
* values.
*
* string ::
* The 'name' string. Note that its format differs depending on the
* (platform,encoding) pair, being either a string of bytes (without a
* terminating `NULL` byte) or containing UTF-16BE entities.
*
* string_len ::
* The length of `string` in bytes.
*
* @note:
* Please refer to the TrueType or OpenType specification for more
* details.
*/
typedef struct FT_SfntName_
{
FT_UShort platform_id;
FT_UShort encoding_id;
FT_UShort language_id;
FT_UShort name_id;
FT_Byte* string; /* this string is *not* null-terminated! */
FT_UInt string_len; /* in bytes */
} FT_SfntName;
/**************************************************************************
*
* @function:
* FT_Get_Sfnt_Name_Count
*
* @description:
* Retrieve the number of name strings in the SFNT 'name' table.
*
* @input:
* face ::
* A handle to the source face.
*
* @return:
* The number of strings in the 'name' table.
*
* @note:
* This function always returns an error if the config macro
* `TT_CONFIG_OPTION_SFNT_NAMES` is not defined in `ftoption.h`.
*/
FT_EXPORT( FT_UInt )
FT_Get_Sfnt_Name_Count( FT_Face face );
/**************************************************************************
*
* @function:
* FT_Get_Sfnt_Name
*
* @description:
* Retrieve a string of the SFNT 'name' table for a given index.
*
* @input:
* face ::
* A handle to the source face.
*
* idx ::
* The index of the 'name' string.
*
* @output:
* aname ::
* The indexed @FT_SfntName structure.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* The `string` array returned in the `aname` structure is not
* null-terminated. Note that you don't have to deallocate `string` by
* yourself; FreeType takes care of it if you call @FT_Done_Face.
*
* Use @FT_Get_Sfnt_Name_Count to get the total number of available
* 'name' table entries, then do a loop until you get the right platform,
* encoding, and name ID.
*
* 'name' table format~1 entries can use language tags also, see
* @FT_Get_Sfnt_LangTag.
*
* This function always returns an error if the config macro
* `TT_CONFIG_OPTION_SFNT_NAMES` is not defined in `ftoption.h`.
*/
FT_EXPORT( FT_Error )
FT_Get_Sfnt_Name( FT_Face face,
FT_UInt idx,
FT_SfntName *aname );
/**************************************************************************
*
* @struct:
* FT_SfntLangTag
*
* @description:
* A structure to model a language tag entry from an SFNT 'name' table.
*
* @fields:
* string ::
* The language tag string, encoded in UTF-16BE (without trailing
* `NULL` bytes).
*
* string_len ::
* The length of `string` in **bytes**.
*
* @note:
* Please refer to the TrueType or OpenType specification for more
* details.
*
* @since:
* 2.8
*/
typedef struct FT_SfntLangTag_
{
FT_Byte* string; /* this string is *not* null-terminated! */
FT_UInt string_len; /* in bytes */
} FT_SfntLangTag;
/**************************************************************************
*
* @function:
* FT_Get_Sfnt_LangTag
*
* @description:
* Retrieve the language tag associated with a language ID of an SFNT
* 'name' table entry.
*
* @input:
* face ::
* A handle to the source face.
*
* langID ::
* The language ID, as returned by @FT_Get_Sfnt_Name. This is always a
* value larger than 0x8000.
*
* @output:
* alangTag ::
* The language tag associated with the 'name' table entry's language
* ID.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* The `string` array returned in the `alangTag` structure is not
* null-terminated. Note that you don't have to deallocate `string` by
* yourself; FreeType takes care of it if you call @FT_Done_Face.
*
* Only 'name' table format~1 supports language tags. For format~0
* tables, this function always returns FT_Err_Invalid_Table. For
* invalid format~1 language ID values, FT_Err_Invalid_Argument is
* returned.
*
* This function always returns an error if the config macro
* `TT_CONFIG_OPTION_SFNT_NAMES` is not defined in `ftoption.h`.
*
* @since:
* 2.8
*/
FT_EXPORT( FT_Error )
FT_Get_Sfnt_LangTag( FT_Face face,
FT_UInt langID,
FT_SfntLangTag *alangTag );
/* */
FT_END_HEADER
#endif /* FTSNAMES_H_ */
/* END */

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/****************************************************************************
*
* ftstroke.h
*
* FreeType path stroker (specification).
*
* Copyright (C) 2002-2024 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.
*
*/
#ifndef FTSTROKE_H_
#define FTSTROKE_H_
#include <freetype/ftoutln.h>
#include <freetype/ftglyph.h>
FT_BEGIN_HEADER
/**************************************************************************
*
* @section:
* glyph_stroker
*
* @title:
* Glyph Stroker
*
* @abstract:
* Generating bordered and stroked glyphs.
*
* @description:
* This component generates stroked outlines of a given vectorial glyph.
* It also allows you to retrieve the 'outside' and/or the 'inside'
* borders of the stroke.
*
* This can be useful to generate 'bordered' glyph, i.e., glyphs
* displayed with a colored (and anti-aliased) border around their
* shape.
*
* @order:
* FT_Stroker
*
* FT_Stroker_LineJoin
* FT_Stroker_LineCap
* FT_StrokerBorder
*
* FT_Outline_GetInsideBorder
* FT_Outline_GetOutsideBorder
*
* FT_Glyph_Stroke
* FT_Glyph_StrokeBorder
*
* FT_Stroker_New
* FT_Stroker_Set
* FT_Stroker_Rewind
* FT_Stroker_ParseOutline
* FT_Stroker_Done
*
* FT_Stroker_BeginSubPath
* FT_Stroker_EndSubPath
*
* FT_Stroker_LineTo
* FT_Stroker_ConicTo
* FT_Stroker_CubicTo
*
* FT_Stroker_GetBorderCounts
* FT_Stroker_ExportBorder
* FT_Stroker_GetCounts
* FT_Stroker_Export
*
*/
/**************************************************************************
*
* @type:
* FT_Stroker
*
* @description:
* Opaque handle to a path stroker object.
*/
typedef struct FT_StrokerRec_* FT_Stroker;
/**************************************************************************
*
* @enum:
* FT_Stroker_LineJoin
*
* @description:
* These values determine how two joining lines are rendered in a
* stroker.
*
* @values:
* FT_STROKER_LINEJOIN_ROUND ::
* Used to render rounded line joins. Circular arcs are used to join
* two lines smoothly.
*
* FT_STROKER_LINEJOIN_BEVEL ::
* Used to render beveled line joins. The outer corner of the joined
* lines is filled by enclosing the triangular region of the corner
* with a straight line between the outer corners of each stroke.
*
* FT_STROKER_LINEJOIN_MITER_FIXED ::
* Used to render mitered line joins, with fixed bevels if the miter
* limit is exceeded. The outer edges of the strokes for the two
* segments are extended until they meet at an angle. A bevel join
* (see above) is used if the segments meet at too sharp an angle and
* the outer edges meet beyond a distance corresponding to the meter
* limit. This prevents long spikes being created.
* `FT_STROKER_LINEJOIN_MITER_FIXED` generates a miter line join as
* used in PostScript and PDF.
*
* FT_STROKER_LINEJOIN_MITER_VARIABLE ::
* FT_STROKER_LINEJOIN_MITER ::
* Used to render mitered line joins, with variable bevels if the miter
* limit is exceeded. The intersection of the strokes is clipped
* perpendicularly to the bisector, at a distance corresponding to
* the miter limit. This prevents long spikes being created.
* `FT_STROKER_LINEJOIN_MITER_VARIABLE` generates a mitered line join
* as used in XPS. `FT_STROKER_LINEJOIN_MITER` is an alias for
* `FT_STROKER_LINEJOIN_MITER_VARIABLE`, retained for backward
* compatibility.
*/
typedef enum FT_Stroker_LineJoin_
{
FT_STROKER_LINEJOIN_ROUND = 0,
FT_STROKER_LINEJOIN_BEVEL = 1,
FT_STROKER_LINEJOIN_MITER_VARIABLE = 2,
FT_STROKER_LINEJOIN_MITER = FT_STROKER_LINEJOIN_MITER_VARIABLE,
FT_STROKER_LINEJOIN_MITER_FIXED = 3
} FT_Stroker_LineJoin;
/**************************************************************************
*
* @enum:
* FT_Stroker_LineCap
*
* @description:
* These values determine how the end of opened sub-paths are rendered in
* a stroke.
*
* @values:
* FT_STROKER_LINECAP_BUTT ::
* The end of lines is rendered as a full stop on the last point
* itself.
*
* FT_STROKER_LINECAP_ROUND ::
* The end of lines is rendered as a half-circle around the last point.
*
* FT_STROKER_LINECAP_SQUARE ::
* The end of lines is rendered as a square around the last point.
*/
typedef enum FT_Stroker_LineCap_
{
FT_STROKER_LINECAP_BUTT = 0,
FT_STROKER_LINECAP_ROUND,
FT_STROKER_LINECAP_SQUARE
} FT_Stroker_LineCap;
/**************************************************************************
*
* @enum:
* FT_StrokerBorder
*
* @description:
* These values are used to select a given stroke border in
* @FT_Stroker_GetBorderCounts and @FT_Stroker_ExportBorder.
*
* @values:
* FT_STROKER_BORDER_LEFT ::
* Select the left border, relative to the drawing direction.
*
* FT_STROKER_BORDER_RIGHT ::
* Select the right border, relative to the drawing direction.
*
* @note:
* Applications are generally interested in the 'inside' and 'outside'
* borders. However, there is no direct mapping between these and the
* 'left' and 'right' ones, since this really depends on the glyph's
* drawing orientation, which varies between font formats.
*
* You can however use @FT_Outline_GetInsideBorder and
* @FT_Outline_GetOutsideBorder to get these.
*/
typedef enum FT_StrokerBorder_
{
FT_STROKER_BORDER_LEFT = 0,
FT_STROKER_BORDER_RIGHT
} FT_StrokerBorder;
/**************************************************************************
*
* @function:
* FT_Outline_GetInsideBorder
*
* @description:
* Retrieve the @FT_StrokerBorder value corresponding to the 'inside'
* borders of a given outline.
*
* @input:
* outline ::
* The source outline handle.
*
* @return:
* The border index. @FT_STROKER_BORDER_RIGHT for empty or invalid
* outlines.
*/
FT_EXPORT( FT_StrokerBorder )
FT_Outline_GetInsideBorder( FT_Outline* outline );
/**************************************************************************
*
* @function:
* FT_Outline_GetOutsideBorder
*
* @description:
* Retrieve the @FT_StrokerBorder value corresponding to the 'outside'
* borders of a given outline.
*
* @input:
* outline ::
* The source outline handle.
*
* @return:
* The border index. @FT_STROKER_BORDER_LEFT for empty or invalid
* outlines.
*/
FT_EXPORT( FT_StrokerBorder )
FT_Outline_GetOutsideBorder( FT_Outline* outline );
/**************************************************************************
*
* @function:
* FT_Stroker_New
*
* @description:
* Create a new stroker object.
*
* @input:
* library ::
* FreeType library handle.
*
* @output:
* astroker ::
* A new stroker object handle. `NULL` in case of error.
*
* @return:
* FreeType error code. 0~means success.
*/
FT_EXPORT( FT_Error )
FT_Stroker_New( FT_Library library,
FT_Stroker *astroker );
/**************************************************************************
*
* @function:
* FT_Stroker_Set
*
* @description:
* Reset a stroker object's attributes.
*
* @input:
* stroker ::
* The target stroker handle.
*
* radius ::
* The border radius.
*
* line_cap ::
* The line cap style.
*
* line_join ::
* The line join style.
*
* miter_limit ::
* The maximum reciprocal sine of half-angle at the miter join,
* expressed as 16.16 fixed-point value.
*
* @note:
* The `radius` is expressed in the same units as the outline
* coordinates.
*
* The `miter_limit` multiplied by the `radius` gives the maximum size
* of a miter spike, at which it is clipped for
* @FT_STROKER_LINEJOIN_MITER_VARIABLE or replaced with a bevel join for
* @FT_STROKER_LINEJOIN_MITER_FIXED.
*
* This function calls @FT_Stroker_Rewind automatically.
*/
FT_EXPORT( void )
FT_Stroker_Set( FT_Stroker stroker,
FT_Fixed radius,
FT_Stroker_LineCap line_cap,
FT_Stroker_LineJoin line_join,
FT_Fixed miter_limit );
/**************************************************************************
*
* @function:
* FT_Stroker_Rewind
*
* @description:
* Reset a stroker object without changing its attributes. You should
* call this function before beginning a new series of calls to
* @FT_Stroker_BeginSubPath or @FT_Stroker_EndSubPath.
*
* @input:
* stroker ::
* The target stroker handle.
*/
FT_EXPORT( void )
FT_Stroker_Rewind( FT_Stroker stroker );
/**************************************************************************
*
* @function:
* FT_Stroker_ParseOutline
*
* @description:
* A convenience function used to parse a whole outline with the stroker.
* The resulting outline(s) can be retrieved later by functions like
* @FT_Stroker_GetCounts and @FT_Stroker_Export.
*
* @input:
* stroker ::
* The target stroker handle.
*
* outline ::
* The source outline.
*
* opened ::
* A boolean. If~1, the outline is treated as an open path instead of
* a closed one.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* If `opened` is~0 (the default), the outline is treated as a closed
* path, and the stroker generates two distinct 'border' outlines.
*
* If `opened` is~1, the outline is processed as an open path, and the
* stroker generates a single 'stroke' outline.
*
* This function calls @FT_Stroker_Rewind automatically.
*/
FT_EXPORT( FT_Error )
FT_Stroker_ParseOutline( FT_Stroker stroker,
FT_Outline* outline,
FT_Bool opened );
/**************************************************************************
*
* @function:
* FT_Stroker_BeginSubPath
*
* @description:
* Start a new sub-path in the stroker.
*
* @input:
* stroker ::
* The target stroker handle.
*
* to ::
* A pointer to the start vector.
*
* open ::
* A boolean. If~1, the sub-path is treated as an open one.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* This function is useful when you need to stroke a path that is not
* stored as an @FT_Outline object.
*/
FT_EXPORT( FT_Error )
FT_Stroker_BeginSubPath( FT_Stroker stroker,
FT_Vector* to,
FT_Bool open );
/**************************************************************************
*
* @function:
* FT_Stroker_EndSubPath
*
* @description:
* Close the current sub-path in the stroker.
*
* @input:
* stroker ::
* The target stroker handle.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* You should call this function after @FT_Stroker_BeginSubPath. If the
* subpath was not 'opened', this function 'draws' a single line segment
* to the start position when needed.
*/
FT_EXPORT( FT_Error )
FT_Stroker_EndSubPath( FT_Stroker stroker );
/**************************************************************************
*
* @function:
* FT_Stroker_LineTo
*
* @description:
* 'Draw' a single line segment in the stroker's current sub-path, from
* the last position.
*
* @input:
* stroker ::
* The target stroker handle.
*
* to ::
* A pointer to the destination point.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* You should call this function between @FT_Stroker_BeginSubPath and
* @FT_Stroker_EndSubPath.
*/
FT_EXPORT( FT_Error )
FT_Stroker_LineTo( FT_Stroker stroker,
FT_Vector* to );
/**************************************************************************
*
* @function:
* FT_Stroker_ConicTo
*
* @description:
* 'Draw' a single quadratic Bezier in the stroker's current sub-path,
* from the last position.
*
* @input:
* stroker ::
* The target stroker handle.
*
* control ::
* A pointer to a Bezier control point.
*
* to ::
* A pointer to the destination point.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* You should call this function between @FT_Stroker_BeginSubPath and
* @FT_Stroker_EndSubPath.
*/
FT_EXPORT( FT_Error )
FT_Stroker_ConicTo( FT_Stroker stroker,
FT_Vector* control,
FT_Vector* to );
/**************************************************************************
*
* @function:
* FT_Stroker_CubicTo
*
* @description:
* 'Draw' a single cubic Bezier in the stroker's current sub-path, from
* the last position.
*
* @input:
* stroker ::
* The target stroker handle.
*
* control1 ::
* A pointer to the first Bezier control point.
*
* control2 ::
* A pointer to second Bezier control point.
*
* to ::
* A pointer to the destination point.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* You should call this function between @FT_Stroker_BeginSubPath and
* @FT_Stroker_EndSubPath.
*/
FT_EXPORT( FT_Error )
FT_Stroker_CubicTo( FT_Stroker stroker,
FT_Vector* control1,
FT_Vector* control2,
FT_Vector* to );
/**************************************************************************
*
* @function:
* FT_Stroker_GetBorderCounts
*
* @description:
* Call this function once you have finished parsing your paths with the
* stroker. It returns the number of points and contours necessary to
* export one of the 'border' or 'stroke' outlines generated by the
* stroker.
*
* @input:
* stroker ::
* The target stroker handle.
*
* border ::
* The border index.
*
* @output:
* anum_points ::
* The number of points.
*
* anum_contours ::
* The number of contours.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* When an outline, or a sub-path, is 'closed', the stroker generates two
* independent 'border' outlines, named 'left' and 'right'.
*
* When the outline, or a sub-path, is 'opened', the stroker merges the
* 'border' outlines with caps. The 'left' border receives all points,
* while the 'right' border becomes empty.
*
* Use the function @FT_Stroker_GetCounts instead if you want to retrieve
* the counts associated to both borders.
*/
FT_EXPORT( FT_Error )
FT_Stroker_GetBorderCounts( FT_Stroker stroker,
FT_StrokerBorder border,
FT_UInt *anum_points,
FT_UInt *anum_contours );
/**************************************************************************
*
* @function:
* FT_Stroker_ExportBorder
*
* @description:
* Call this function after @FT_Stroker_GetBorderCounts to export the
* corresponding border to your own @FT_Outline structure.
*
* Note that this function appends the border points and contours to your
* outline, but does not try to resize its arrays.
*
* @input:
* stroker ::
* The target stroker handle.
*
* border ::
* The border index.
*
* outline ::
* The target outline handle.
*
* @note:
* Always call this function after @FT_Stroker_GetBorderCounts to get
* sure that there is enough room in your @FT_Outline object to receive
* all new data.
*
* When an outline, or a sub-path, is 'closed', the stroker generates two
* independent 'border' outlines, named 'left' and 'right'.
*
* When the outline, or a sub-path, is 'opened', the stroker merges the
* 'border' outlines with caps. The 'left' border receives all points,
* while the 'right' border becomes empty.
*
* Use the function @FT_Stroker_Export instead if you want to retrieve
* all borders at once.
*/
FT_EXPORT( void )
FT_Stroker_ExportBorder( FT_Stroker stroker,
FT_StrokerBorder border,
FT_Outline* outline );
/**************************************************************************
*
* @function:
* FT_Stroker_GetCounts
*
* @description:
* Call this function once you have finished parsing your paths with the
* stroker. It returns the number of points and contours necessary to
* export all points/borders from the stroked outline/path.
*
* @input:
* stroker ::
* The target stroker handle.
*
* @output:
* anum_points ::
* The number of points.
*
* anum_contours ::
* The number of contours.
*
* @return:
* FreeType error code. 0~means success.
*/
FT_EXPORT( FT_Error )
FT_Stroker_GetCounts( FT_Stroker stroker,
FT_UInt *anum_points,
FT_UInt *anum_contours );
/**************************************************************************
*
* @function:
* FT_Stroker_Export
*
* @description:
* Call this function after @FT_Stroker_GetBorderCounts to export all
* borders to your own @FT_Outline structure.
*
* Note that this function appends the border points and contours to your
* outline, but does not try to resize its arrays.
*
* @input:
* stroker ::
* The target stroker handle.
*
* outline ::
* The target outline handle.
*/
FT_EXPORT( void )
FT_Stroker_Export( FT_Stroker stroker,
FT_Outline* outline );
/**************************************************************************
*
* @function:
* FT_Stroker_Done
*
* @description:
* Destroy a stroker object.
*
* @input:
* stroker ::
* A stroker handle. Can be `NULL`.
*/
FT_EXPORT( void )
FT_Stroker_Done( FT_Stroker stroker );
/**************************************************************************
*
* @function:
* FT_Glyph_Stroke
*
* @description:
* Stroke a given outline glyph object with a given stroker.
*
* @inout:
* pglyph ::
* Source glyph handle on input, new glyph handle on output.
*
* @input:
* stroker ::
* A stroker handle.
*
* destroy ::
* A Boolean. If~1, the source glyph object is destroyed on success.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* The source glyph is untouched in case of error.
*
* Adding stroke may yield a significantly wider and taller glyph
* depending on how large of a radius was used to stroke the glyph. You
* may need to manually adjust horizontal and vertical advance amounts to
* account for this added size.
*/
FT_EXPORT( FT_Error )
FT_Glyph_Stroke( FT_Glyph *pglyph,
FT_Stroker stroker,
FT_Bool destroy );
/**************************************************************************
*
* @function:
* FT_Glyph_StrokeBorder
*
* @description:
* Stroke a given outline glyph object with a given stroker, but only
* return either its inside or outside border.
*
* @inout:
* pglyph ::
* Source glyph handle on input, new glyph handle on output.
*
* @input:
* stroker ::
* A stroker handle.
*
* inside ::
* A Boolean. If~1, return the inside border, otherwise the outside
* border.
*
* destroy ::
* A Boolean. If~1, the source glyph object is destroyed on success.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* The source glyph is untouched in case of error.
*
* Adding stroke may yield a significantly wider and taller glyph
* depending on how large of a radius was used to stroke the glyph. You
* may need to manually adjust horizontal and vertical advance amounts to
* account for this added size.
*/
FT_EXPORT( FT_Error )
FT_Glyph_StrokeBorder( FT_Glyph *pglyph,
FT_Stroker stroker,
FT_Bool inside,
FT_Bool destroy );
/* */
FT_END_HEADER
#endif /* FTSTROKE_H_ */
/* END */
/* Local Variables: */
/* coding: utf-8 */
/* End: */

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