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Diffstat (limited to 'src/3rdparty/freetype/docs/CHANGES')
| -rw-r--r-- | src/3rdparty/freetype/docs/CHANGES | 197 |
1 files changed, 189 insertions, 8 deletions
diff --git a/src/3rdparty/freetype/docs/CHANGES b/src/3rdparty/freetype/docs/CHANGES index a6d088af49..f36cb19b7e 100644 --- a/src/3rdparty/freetype/docs/CHANGES +++ b/src/3rdparty/freetype/docs/CHANGES @@ -1,3 +1,184 @@ + +CHANGES BETWEEN 2.10.0 and 2.10.1 + + I. IMPORTANT BUG FIXES + + - The bytecode hinting of OpenType variation fonts was flawed, since + the data in the `CVAR' table wasn't correctly applied. + + + II. MISCELLANEOUS + + - Auto-hinter support for Mongolian. + + - For distribution, `.tar.bz2' packages are replaced with `.tar.xz' + bundles. + + - The handling of the default character in PCF fonts as introduced + in version 2.10.0 was partially broken, causing premature abortion + of charmap iteration for many fonts. + + - If `FT_Set_Named_Instance' was called with the same arguments + twice in a row, the function returned an incorrect error code the + second time. + + - Direct rendering using FT_RASTER_FLAG_DIRECT crashed (bug + introduced in version 2.10.0). + + - Increased precision while computing OpenType font variation + instances. + + - The flattening algorithm of cubic Bezier curves was slightly + changed to make it faster. This can cause very subtle rendering + changes, which aren't noticeable by the eye, however. + + - The auto-hinter now disables hinting if there are blue zones + defined for a `style' (i.e., a certain combination of a script and + its related typographic features) but the font doesn't contain any + characters needed to set up at least one blue zone. + + - The `ftmulti' demo program now supports multiple hidden axes with + the same name tag. + + - `ftview', `ftstring', and `ftgrid' got a `-k' command line option + to emulate a sequence of keystrokes at start-up. + + - `ftview', `ftstring', and `ftgrid' now support screen dumping to a + PNG file. + + - The bytecode debugger, `ttdebug', now supports variation TrueType + fonts; a variation font instance can be selected with the new `-d' + command line option. + + +====================================================================== + +CHANGES BETWEEN 2.9.1 and 2.10.0 + + I. IMPORTANT CHANGES + + - A bunch of new functions has been added to access and process + COLR/CPAL data of OpenType fonts with color-layered glyphs. + + FT_Palette_Data_Get + Retrieve color palette data. + FT_Palette_Select + Select and activate a color palette for color-layered + glyphs. + FT_Palette_Set_Foreground_Color + Set text foreground color for palette index 0xFFFF. + + FT_Get_Color_Glyph_Layer + Get color layers for a given glyph (using an interator + object). + + FT_Bitmap_Blend + Blend one bitmap onto another with a given color. + + - An experimental feature is the new behaviour of the + `FT_LOAD_COLOR' load flag for color-layered glyphs: Internally + it sets a flag so that if `FT_Render_Glyph' is called with + `FT_RENDER_MODE_NORMAL' (or `FT_Load_Glyph' with + `FT_LOAD_RENDER'), a default blending of the color glyph layers + will happen automatically for convenience. + + - As a GSoC 2018 project, Nikhil Ramakrishnan completely + overhauled and modernized the API reference. + + + II. MISCELLANEOUS + + - The logic for computing the global ascender, descender, and + height of OpenType fonts has been slightly adjusted for + consistency. + + . If the `useTypoMetrics' flag (i.e., bit 7 in the `fsSelection' + field) in the `OS/2' table is set, use the `sTypo' fields in + `OS/2' unconditionally. + . Otherwise use the metrics data from the `hhea' table (if not + zero). + . Otherwise use the `sTypo' fields from the `OS/2' table (if not + zero). + . Otherwise use the `usWin' data from the `OS/2' table as a last + resort. + + Variable fonts will apply the `MVAR' deltas to whichever metrics + were picked. + + - `TT_Set_MM_Blend' could fail if call repeatedly with the same + arguments. + + - The precision of handling deltas in Variation Fonts has been + increased. The problem did only show up with multidimensional + designspaces. + + - New function `FT_Library_SetLcdGeometry' to set up the geometry + of LCD subpixels. + + - FreeType now uses the `defaultChar' property of PCF fonts to set + the glyph for the undefined character at glyph index 0 (as + FreeType already does for all other supported font formats). As + a consequence, the order of glyphs of a PCF font if accessed + with FreeType can be different now compared to previous + versions. + + This change doesn't affect PCF font access with cmaps. + + - `FT_Select_Charmap' has been changed to allow parameter value + `FT_ENCODING_NONE', which is valid for BDF, PCF, and Windows FNT + formats to access built-in cmaps that don't have a predefined + `FT_Encoding' value. + + - A previously reserved field in the `FT_GlyphSlotRec' structure + now holds the glyph index. + + - On Win32 platforms, the use of `_DLL' to build the library has + been replaced with `DLL_EXPORT' and `DLL_IMPORT'. + + - The usual round of fuzzer bug fixes to better reject malformed + fonts. + + - `FT_Outline_New_Internal' and `FT_Outline_Done_Internal' have + been removed. These two functions were public by oversight only + and were never documented. + + - A new function `FT_Error_String' returns descriptions of error + codes if configuration macro FT_CONFIG_OPTION_ERROR_STRINGS is + defined. + + - `FT_Set_MM_WeightVector' and `FT_Get_MM_WeightVector' are new + functions limited to Adobe MultiMaster fonts to directly set and + get the weight vector. + + - Support for Position Independent Code as needed by systems that + prohibit automatic address fixups, such as BREW, has been + removed. [Compilation with modern compilers that use flags like + `-fPIC' or `-fPIE' is not affected.] + + - The `ftdump' demo program has new options `-c' and `-C' to + display charmaps in compact and detailed format, respectively. + Option `-V' has been removed. + + - The `ftview', `ftstring', and `ftgrid' demo programs use a new + command line option `-d' to specify the program window's width, + height, and color depth. + + - The `ftview' demo program now displays red boxes for zero-width + glyphs. + + - `ftglyph' has limited support to display fonts with + color-layered glyphs. This will be improved later on. + + - `ftgrid' can now display bitmap fonts also. + + - The `ttdebug' demo program has a new option `-f' to select a + member of a TrueType collection (TTC). + + - Other various improvements to the demo programs. + + +====================================================================== + CHANGES BETWEEN 2.9 and 2.9.1 I. IMPORTANT BUG FIXES @@ -8,7 +189,7 @@ CHANGES BETWEEN 2.9 and 2.9.1 - CVE-2018-6942: Older FreeType versions can crash with certain malformed variation fonts. - http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-6942 + https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-6942 II. MISCELLANEOUS @@ -232,7 +413,7 @@ CHANGES BETWEEN 2.7.1 and 2.8 following properties can be handled: stem darkening, LCD filter weights, and the random seed for the `random' CFF operator. - - The PCF change to show more `colourful' family names (introduced + - The PCF change to show more `colorful' family names (introduced in version 2.7.1) was too radical; it can now be configured with PCF_CONFIG_OPTION_LONG_FAMILY_NAMES at compile time. If activated, it can be switched off at run time with the new pcf @@ -383,7 +564,7 @@ CHANGES BETWEEN 2.7 and 2.7.1 and the number of CVT entries. Please report if you encounter a font where the selected values are not adequate. - - PCF family names are made more `colourful'; they now include the + - PCF family names are made more `colorful'; they now include the foundry and information whether they contain wide characters. For example, you no longer get `Fixed' but rather `Sony Fixed' or `Misc Fixed Wide'. @@ -667,8 +848,8 @@ CHANGES BETWEEN 2.6.1 and 2.6.2 - The `ftstring' demo program now supports subpixel rendering; use key `l' to cycle through the LCD modes. - - The `ftstring' demo program now supports colour rendering; use - the `space' key to cycle through various colour combinations. + - The `ftstring' demo program now supports color rendering; use + the `space' key to cycle through various color combinations. - The graphical demo programs now use a default gamma value of 1.8 (instead of 1.2). @@ -1325,7 +1506,7 @@ CHANGES BETWEEN 2.4.10 and 2.4.11 Originally, it was a separate patch available from - http://www.infinality.net/blog/ + https://web.archive.org/web/20150710073951/http://www.infinality.net:80/blog/ and which has been integrated. @@ -4047,7 +4228,7 @@ CHANGES BETWEEN beta8 and 2.0 untested for now. - Updated `docs/docmaker.py', a draft API reference is available at - http://www.freetype.org/ft2api.html. + https://web.archive.org/web/20001215173400/http://www.freetype.org:80/ft2api.html. - Changed `type1' to use `psaux'. @@ -5017,7 +5198,7 @@ Extensions support: ------------------------------------------------------------------------ -Copyright 2000-2018 by +Copyright (C) 2000-2019 by David Turner, Robert Wilhelm, and Werner Lemberg. This file is part of the FreeType project, and may only be used, |