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[truetype] Hide Infinality. 

Remove Infinality as an option before its complete extraction.

* include/freetype/ftoption.h: Remove the Infinality option.
* devel/ftoption.h: Ditto.
* inclide/freetype/ftdriver.h (TT_INTERPRETER_VERSION_38): Is 40 now.
This commit is contained in:
Alexei Podtelezhnikov 2023-02-16 23:06:27 -05:00
parent 74ea5454cc
commit 1ca2efd652
3 changed files with 17 additions and 86 deletions
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47
devel/ftoption.h
View File

@ -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
/**************************************************************************
@ -977,21 +951,14 @@ 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

47
include/freetype/config/ftoption.h
View File

@ -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
/**************************************************************************
@ -977,21 +951,14 @@ 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

9
include/freetype/ftdriver.h
View File

@ -651,11 +651,8 @@ FT_BEGIN_HEADER
* Windows~98; only grayscale and B/W rasterizing is supported.
*
* TT_INTERPRETER_VERSION_38 ::
* Version~38 corresponds to MS rasterizer v.1.9; it is roughly
* equivalent to the hinting provided by DirectWrite ClearType (as can
* be found, for example, in the Internet Explorer~9 running on
* Windows~7). It is used in FreeType to select the 'Infinality'
* subpixel hinting code. The code may be removed in a future version.
* Version~38 is the same Version~40. The original 'Infinality' code is
* no longer available.
*
* TT_INTERPRETER_VERSION_40 ::
* Version~40 corresponds to MS rasterizer v.2.1; it is roughly
@ -760,7 +757,7 @@ FT_BEGIN_HEADER
*
*/
#define TT_INTERPRETER_VERSION_35 35
#define TT_INTERPRETER_VERSION_38 38
#define TT_INTERPRETER_VERSION_38 40
#define TT_INTERPRETER_VERSION_40 40