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author | John Abd-El-Malek <jabdelmalek@google.com> | 2014-05-17 22:33:34 -0700 |
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committer | John Abd-El-Malek <jabdelmalek@google.com> | 2014-05-17 22:33:34 -0700 |
commit | 5110c4743751145c4ae1934cd1d83bc6c55bb43f (patch) | |
tree | b141608096b73163182764c25b895d3df4b2c182 /core/include/thirdparties/freetype/freetype/ftcffdrv.h | |
parent | 76b563d2feed92ed328afb1f15e3466a9536b11b (diff) | |
download | pdfium-5110c4743751145c4ae1934cd1d83bc6c55bb43f.tar.xz |
Initial commit.
Diffstat (limited to 'core/include/thirdparties/freetype/freetype/ftcffdrv.h')
-rw-r--r-- | core/include/thirdparties/freetype/freetype/ftcffdrv.h | 151 |
1 files changed, 151 insertions, 0 deletions
diff --git a/core/include/thirdparties/freetype/freetype/ftcffdrv.h b/core/include/thirdparties/freetype/freetype/ftcffdrv.h new file mode 100644 index 0000000000..3a377950d9 --- /dev/null +++ b/core/include/thirdparties/freetype/freetype/ftcffdrv.h @@ -0,0 +1,151 @@ +/***************************************************************************/ +/* */ +/* ftcffdrv.h */ +/* */ +/* FreeType API for controlling the CFF driver (specification only). */ +/* */ +/* Copyright 2013 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 __FTCFFDRV_H__ +#define __FTCFFDRV_H__ + +#include "../ft2build.h" +#include "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: + * cff_driver + * + * @title: + * The CFF driver + * + * @abstract: + * Controlling the CFF driver module. + * + * @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. The following lists the available properties + * together with the necessary macros and structures. + * + * The CFF driver's module name is `cff'. + * + */ + + + /************************************************************************** + * + * @property: + * hinting-engine + * + * @description: + * Thanks to Adobe, which contributed a new hinting (and parsing) + * engine, an application can select between `freetype' and `adobe' if + * compiled with CFF_CONFIG_OPTION_OLD_ENGINE. If this configuration + * macro isn't defined, `hinting-engine' does nothing. + * + * The default engine is `freetype' if CFF_CONFIG_OPTION_OLD_ENGINE is + * defined, and `adobe' otherwise. + * + * The following example code demonstrates how to select Adobe's hinting + * engine (omitting the error handling). + * + * { + * FT_Library library; + * FT_Face face; + * FT_UInt hinting_engine = FT_CFF_HINTING_ADOBE; + * + * + * FT_Init_FreeType( &library ); + * + * FT_Property_Set( library, "cff", + * "hinting-engine", &hinting_engine ); + * } + * + * @note: + * This property can be used with @FT_Property_Get also. + * + */ + + + /************************************************************************** + * + * @enum: + * FT_CFF_HINTING_XXX + * + * @description: + * A list of constants used for the @hinting-engine property to select + * the hinting engine for CFF fonts. + * + * @values: + * FT_CFF_HINTING_FREETYPE :: + * Use the old FreeType hinting engine. + * + * FT_CFF_HINTING_ADOBE :: + * Use the hinting engine contributed by Adobe. + * + */ +#define FT_CFF_HINTING_FREETYPE 0 +#define FT_CFF_HINTING_ADOBE 1 + + + /************************************************************************** + * + * @property: + * no-stem-darkening + * + * @description: + * By default, the Adobe CFF engine darkens stems at smaller sizes, + * regardless of hinting, to enhance contrast. Setting this property, + * stem darkening gets switched off. + * + * Note that stem darkening is never applied if @FT_LOAD_NO_SCALE is set. + * + * { + * FT_Library library; + * FT_Face face; + * FT_Bool no_stem_darkening = TRUE; + * + * + * FT_Init_FreeType( &library ); + * + * FT_Property_Set( library, "cff", + * "no-stem-darkening", &no_stem_darkening ); + * } + * + * @note: + * This property can be used with @FT_Property_Get also. + * + */ + + + /* */ + +FT_END_HEADER + + +#endif /* __FTCFFDRV_H__ */ + + +/* END */ |