freetype 2025-01-01 (829e4757)

Code extracted from:

    https://gitlab.kitware.com/third-party/freetype.git

at commit 829e475750d787a4d1a2915f1a84da96781b5b8d (for/vtk-20250101-2.13.3).

LICENSE.TXT

@@ -29,12 +29,16 @@ 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 wer part  of the BDF driver
+`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.
 

README

@@ -1,4 +1,4 @@
-FreeType 2.12.0
+FreeType 2.13.3
 ===============
 
 Homepage: https://www.freetype.org
@@ -16,7 +16,9 @@ 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`.
+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
@@ -30,9 +32,9 @@ sites.  Go to
 
 and download one of the following files.
 
-  freetype-doc-2.12.0.tar.xz
-  freetype-doc-2.12.0.tar.gz
-  ftdoc2120.zip
+  freetype-doc-2.13.3.tar.xz
+  freetype-doc-2.13.3.tar.gz
+  ftdoc2133.zip
 
 To view the documentation online, go to
 
@@ -92,7 +94,7 @@ Enjoy!
 
 ----------------------------------------------------------------------
 
-Copyright (C) 2006-2022 by
+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,

builds/unix/ftconfig.h.in

@@ -4,7 +4,7 @@
  *
  *   UNIX-specific configuration file (specification only).
  *
- * Copyright (C) 1996-2022 by
+ * 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,

builds/unix/ftsystem.c

@@ -4,7 +4,7 @@
  *
  *   Unix-specific FreeType low-level system interface (body).
  *
- * Copyright (C) 1996-2022 by
+ * 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,

builds/windows/ftdebug.c

@@ -4,7 +4,7 @@
  *
  *   Debugging and logging component for Win32 (body).
  *
- * Copyright (C) 1996-2022 by
+ * 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,

include/freetype/config/ftconfig.h

@@ -4,7 +4,7 @@
  *
  *   ANSI-specific configuration file (specification only).
  *
- * Copyright (C) 1996-2022 by
+ * 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,

include/freetype/config/ftheader.h

@@ -4,7 +4,7 @@
  *
  *   Build macros of the FreeType 2 library.
  *
- * Copyright (C) 1996-2022 by
+ * 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,

include/freetype/config/ftoption.h

@@ -4,7 +4,7 @@
  *
  *   User-selectable configuration macros (specification only).
  *
- * Copyright (C) 1996-2022 by
+ * 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,
@@ -461,9 +461,9 @@ FT_BEGIN_HEADER
    *   while compiling in 'release' mode):
    *
    *   ```
-   *     _af_debug_disable_horz_hints
-   *     _af_debug_disable_vert_hints
-   *     _af_debug_disable_blue_hints
+   *     af_debug_disable_horz_hints_
+   *     af_debug_disable_vert_hints_
+   *     af_debug_disable_blue_hints_
    *   ```
    *
    *   Additionally, the following functions provide dumps of various
@@ -480,7 +480,7 @@ FT_BEGIN_HEADER
    *   As an argument, they use another global variable:
    *
    *   ```
-   *     _af_debug_hints
+   *     af_debug_hints_
    *   ```
    *
    *   Please have a look at the `ftgrid` demo program to see how those
@@ -584,12 +584,12 @@ FT_BEGIN_HEADER
   /**************************************************************************
    *
    * Define `TT_CONFIG_OPTION_POSTSCRIPT_NAMES` if you want to be able to
-   * load and enumerate the glyph Postscript names in a TrueType or OpenType
+   * load and enumerate Postscript names of glyphs in a TrueType or OpenType
    * file.
    *
-   * Note that when you do not compile the 'psnames' module by undefining the
-   * above `FT_CONFIG_OPTION_POSTSCRIPT_NAMES`, the 'sfnt' module will
-   * contain additional code used to read the PS Names table from a font.
+   * Note that if you do not compile the 'psnames' module by undefining the
+   * above `FT_CONFIG_OPTION_POSTSCRIPT_NAMES` macro, the 'sfnt' module will
+   * contain additional code to read the PostScript name table from a font.
    *
    * (By default, the module uses 'psnames' to extract glyph names.)
    */
@@ -661,36 +661,12 @@ FT_BEGIN_HEADER
    * not) instructions in a certain way so that all TrueType fonts look like
    * they do in a Windows ClearType (DirectWrite) environment.  See [1] for a
    * technical overview on what this means.  See `ttinterp.h` for more
-   * details on the LEAN option.
+   * details on this option.
    *
-   * There are three possible values.
-   *
-   * Value 1:
-   *   This value is associated with the 'Infinality' moniker, contributed by
-   *   an individual nicknamed Infinality with the goal of making TrueType
-   *   fonts render better than on Windows.  A high amount of configurability
-   *   and flexibility, down to rules for single glyphs in fonts, but also
-   *   very slow.  Its experimental and slow nature and the original
-   *   developer losing interest meant that this option was never enabled in
-   *   default builds.
-   *
-   *   The corresponding interpreter version is v38.
-   *
-   * Value 2:
-   *   The new default mode for the TrueType driver.  The Infinality code
-   *   base was stripped to the bare minimum and all configurability removed
-   *   in the name of speed and simplicity.  The configurability was mainly
-   *   aimed at legacy fonts like 'Arial', 'Times New Roman', or 'Courier'.
-   *   Legacy fonts are fonts that modify vertical stems to achieve clean
-   *   black-and-white bitmaps.  The new mode focuses on applying a minimal
-   *   set of rules to all fonts indiscriminately so that modern and web
-   *   fonts render well while legacy fonts render okay.
-   *
-   *   The corresponding interpreter version is v40.
-   *
-   * Value 3:
-   *   Compile both, making both v38 and v40 available (the latter is the
-   *   default).
+   * The new default mode focuses on applying a minimal set of rules to all
+   * fonts indiscriminately so that modern and web fonts render well while
+   * legacy fonts render okay.  The corresponding interpreter version is v40.
+   * The so-called Infinality mode (v38) is no longer available in FreeType.
    *
    * By undefining these, you get rendering behavior like on Windows without
    * ClearType, i.e., Windows XP without ClearType enabled and Win9x
@@ -705,9 +681,7 @@ FT_BEGIN_HEADER
    * [1]
    * https://www.microsoft.com/typography/cleartype/truetypecleartype.aspx
    */
-/* #define TT_CONFIG_OPTION_SUBPIXEL_HINTING  1         */
-#define TT_CONFIG_OPTION_SUBPIXEL_HINTING  2
-/* #define TT_CONFIG_OPTION_SUBPIXEL_HINTING  ( 1 | 2 ) */
+#define TT_CONFIG_OPTION_SUBPIXEL_HINTING
 
 
   /**************************************************************************
@@ -739,6 +713,24 @@ FT_BEGIN_HEADER
 #define TT_CONFIG_OPTION_GX_VAR_SUPPORT
 
 
+  /**************************************************************************
+   *
+   * Define `TT_CONFIG_OPTION_NO_BORING_EXPANSION` if you want to exclude
+   * support for 'boring' OpenType specification expansions.
+   *
+   *   https://github.com/harfbuzz/boring-expansion-spec
+   *
+   * Right now, the following features are covered:
+   *
+   *   - 'avar' version 2.0
+   *
+   * Most likely, this is a temporary configuration option to be removed in
+   * the near future, since it is assumed that eventually those features are
+   * added to the OpenType standard.
+   */
+/* #define TT_CONFIG_OPTION_NO_BORING_EXPANSION */
+
+
   /**************************************************************************
    *
    * Define `TT_CONFIG_OPTION_BDF` if you want to include support for an
@@ -765,6 +757,22 @@ FT_BEGIN_HEADER
 #endif
 
 
+  /**************************************************************************
+   *
+   * Option `TT_CONFIG_OPTION_GPOS_KERNING` enables a basic GPOS kerning
+   * implementation (for TrueType fonts only).  With this defined, FreeType
+   * is able to get kerning pair data from the GPOS 'kern' feature as well as
+   * legacy 'kern' tables; without this defined, FreeType will only be able
+   * to use legacy 'kern' tables.
+   *
+   * Note that FreeType does not support more advanced GPOS layout features;
+   * even the 'kern' feature implemented here doesn't handle more
+   * sophisticated kerning variants.  Use a higher-level library like
+   * HarfBuzz instead for that.
+   */
+/* #define TT_CONFIG_OPTION_GPOS_KERNING */
+
+
   /*************************************************************************/
   /*************************************************************************/
   /****                                                                 ****/
@@ -959,21 +967,14 @@ FT_BEGIN_HEADER
 
 
   /*
-   * The next three macros are defined if native TrueType hinting is
+   * The next two macros are defined if native TrueType hinting is
    * requested by the definitions above.  Don't change this.
    */
 #ifdef TT_CONFIG_OPTION_BYTECODE_INTERPRETER
 #define  TT_USE_BYTECODE_INTERPRETER
-
 #ifdef TT_CONFIG_OPTION_SUBPIXEL_HINTING
-#if TT_CONFIG_OPTION_SUBPIXEL_HINTING & 1
-#define  TT_SUPPORT_SUBPIXEL_HINTING_INFINALITY
-#endif
-
-#if TT_CONFIG_OPTION_SUBPIXEL_HINTING & 2
 #define  TT_SUPPORT_SUBPIXEL_HINTING_MINIMAL
 #endif
-#endif
 #endif
 
 

include/freetype/config/ftstdlib.h

@@ -5,7 +5,7 @@
  *   ANSI-specific library and header configuration file (specification
  *   only).
  *
- * Copyright (C) 2002-2022 by
+ * 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,
@@ -111,13 +111,13 @@
 
 #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_sprintf  sprintf
+#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
 
 
   /**************************************************************************

include/freetype/config/integer-types.h

@@ -4,7 +4,7 @@
  *
  *   FreeType integer types definitions.
  *
- * Copyright (C) 1996-2022 by
+ * 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,

include/freetype/config/mac-support.h

@@ -4,7 +4,7 @@
  *
  *   Mac/OS X support configuration header.
  *
- * Copyright (C) 1996-2022 by
+ * 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,

include/freetype/config/public-macros.h

@@ -4,7 +4,7 @@
  *
  *   Define a set of compiler macros used in public FreeType headers.
  *
- * Copyright (C) 2020-2022 by
+ * 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,