| Index: third_party/freetype/include/freetype.h
|
| diff --git a/third_party/freetype/include/freetype.h b/third_party/freetype/include/freetype.h
|
| deleted file mode 100644
|
| index efbd13ad8358e098010f6eabb9d73a2a87ee6a5e..0000000000000000000000000000000000000000
|
| --- a/third_party/freetype/include/freetype.h
|
| +++ /dev/null
|
| @@ -1,4048 +0,0 @@
|
| -/***************************************************************************/
|
| -/* */
|
| -/* freetype.h */
|
| -/* */
|
| -/* FreeType high-level API and common types (specification only). */
|
| -/* */
|
| -/* Copyright 1996-2014 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_H__
|
| -#define __FREETYPE_H__
|
| -
|
| -
|
| -#ifndef FT_FREETYPE_H
|
| -#error "`ft2build.h' hasn't been included yet!"
|
| -#error "Please always use macros to include FreeType header files."
|
| -#error "Example:"
|
| -#error " #include <ft2build.h>"
|
| -#error " #include FT_FREETYPE_H"
|
| -#endif
|
| -
|
| -
|
| -#include <ft2build.h>
|
| -#include FT_CONFIG_CONFIG_H
|
| -#include FT_TYPES_H
|
| -#include FT_ERRORS_H
|
| -
|
| -
|
| -FT_BEGIN_HEADER
|
| -
|
| -
|
| -
|
| - /*************************************************************************/
|
| - /* */
|
| - /* <Section> */
|
| - /* header_inclusion */
|
| - /* */
|
| - /* <Title> */
|
| - /* FreeType's header inclusion scheme */
|
| - /* */
|
| - /* <Abstract> */
|
| - /* How client applications should include FreeType header files. */
|
| - /* */
|
| - /* <Description> */
|
| - /* To be as flexible as possible (and for historical reasons), */
|
| - /* FreeType uses a very special inclusion scheme to load header */
|
| - /* files, for example */
|
| - /* */
|
| - /* { */
|
| - /* #include <ft2build.h> */
|
| - /* */
|
| - /* #include FT_FREETYPE_H */
|
| - /* #include FT_OUTLINE_H */
|
| - /* } */
|
| - /* */
|
| - /* A compiler and its preprocessor only needs an include path to find */
|
| - /* the file `ft2build.h'; the exact locations and names of the other */
|
| - /* FreeType header files are hidden by preprocessor macro names, */
|
| - /* loaded by `ft2build.h'. The API documentation always gives the */
|
| - /* header macro name needed for a particular function. */
|
| - /* */
|
| - /*************************************************************************/
|
| -
|
| -
|
| - /*************************************************************************/
|
| - /* */
|
| - /* <Section> */
|
| - /* user_allocation */
|
| - /* */
|
| - /* <Title> */
|
| - /* User allocation */
|
| - /* */
|
| - /* <Abstract> */
|
| - /* How client applications should allocate FreeType data structures. */
|
| - /* */
|
| - /* <Description> */
|
| - /* FreeType assumes that structures allocated by the user and passed */
|
| - /* as arguments are zeroed out except for the actual data. In other */
|
| - /* words, it is recommended to use `calloc' (or variants of it) */
|
| - /* instead of `malloc' for allocation. */
|
| - /* */
|
| - /*************************************************************************/
|
| -
|
| -
|
| -
|
| - /*************************************************************************/
|
| - /*************************************************************************/
|
| - /* */
|
| - /* B A S I C T Y P E S */
|
| - /* */
|
| - /*************************************************************************/
|
| - /*************************************************************************/
|
| -
|
| -
|
| - /*************************************************************************/
|
| - /* */
|
| - /* <Section> */
|
| - /* base_interface */
|
| - /* */
|
| - /* <Title> */
|
| - /* Base Interface */
|
| - /* */
|
| - /* <Abstract> */
|
| - /* The FreeType~2 base font interface. */
|
| - /* */
|
| - /* <Description> */
|
| - /* This section describes the most important public high-level API */
|
| - /* functions of FreeType~2. */
|
| - /* */
|
| - /* <Order> */
|
| - /* FT_Library */
|
| - /* FT_Face */
|
| - /* FT_Size */
|
| - /* FT_GlyphSlot */
|
| - /* FT_CharMap */
|
| - /* FT_Encoding */
|
| - /* FT_ENC_TAG */
|
| - /* */
|
| - /* FT_FaceRec */
|
| - /* */
|
| - /* FT_FACE_FLAG_SCALABLE */
|
| - /* FT_FACE_FLAG_FIXED_SIZES */
|
| - /* FT_FACE_FLAG_FIXED_WIDTH */
|
| - /* FT_FACE_FLAG_HORIZONTAL */
|
| - /* FT_FACE_FLAG_VERTICAL */
|
| - /* FT_FACE_FLAG_COLOR */
|
| - /* FT_FACE_FLAG_SFNT */
|
| - /* FT_FACE_FLAG_CID_KEYED */
|
| - /* FT_FACE_FLAG_TRICKY */
|
| - /* FT_FACE_FLAG_KERNING */
|
| - /* FT_FACE_FLAG_MULTIPLE_MASTERS */
|
| - /* FT_FACE_FLAG_GLYPH_NAMES */
|
| - /* FT_FACE_FLAG_EXTERNAL_STREAM */
|
| - /* FT_FACE_FLAG_HINTER */
|
| - /* FT_FACE_FLAG_TRICKY */
|
| - /* */
|
| - /* FT_HAS_HORIZONTAL */
|
| - /* FT_HAS_VERTICAL */
|
| - /* FT_HAS_KERNING */
|
| - /* FT_HAS_FIXED_SIZES */
|
| - /* FT_HAS_GLYPH_NAMES */
|
| - /* FT_HAS_MULTIPLE_MASTERS */
|
| - /* FT_HAS_COLOR */
|
| - /* */
|
| - /* FT_IS_SFNT */
|
| - /* FT_IS_SCALABLE */
|
| - /* FT_IS_FIXED_WIDTH */
|
| - /* FT_IS_CID_KEYED */
|
| - /* FT_IS_TRICKY */
|
| - /* */
|
| - /* FT_STYLE_FLAG_BOLD */
|
| - /* FT_STYLE_FLAG_ITALIC */
|
| - /* */
|
| - /* FT_SizeRec */
|
| - /* FT_Size_Metrics */
|
| - /* */
|
| - /* FT_GlyphSlotRec */
|
| - /* FT_Glyph_Metrics */
|
| - /* FT_SubGlyph */
|
| - /* */
|
| - /* FT_Bitmap_Size */
|
| - /* */
|
| - /* FT_Init_FreeType */
|
| - /* FT_Done_FreeType */
|
| - /* */
|
| - /* FT_New_Face */
|
| - /* FT_Done_Face */
|
| - /* FT_Reference_Face */
|
| - /* FT_New_Memory_Face */
|
| - /* FT_Open_Face */
|
| - /* FT_Open_Args */
|
| - /* FT_Parameter */
|
| - /* FT_Attach_File */
|
| - /* FT_Attach_Stream */
|
| - /* */
|
| - /* FT_Set_Char_Size */
|
| - /* FT_Set_Pixel_Sizes */
|
| - /* FT_Request_Size */
|
| - /* FT_Select_Size */
|
| - /* FT_Size_Request_Type */
|
| - /* FT_Size_RequestRec */
|
| - /* FT_Size_Request */
|
| - /* FT_Set_Transform */
|
| - /* FT_Load_Glyph */
|
| - /* FT_Get_Char_Index */
|
| - /* FT_Get_First_Char */
|
| - /* FT_Get_Next_Char */
|
| - /* FT_Get_Name_Index */
|
| - /* FT_Load_Char */
|
| - /* */
|
| - /* FT_OPEN_MEMORY */
|
| - /* FT_OPEN_STREAM */
|
| - /* FT_OPEN_PATHNAME */
|
| - /* FT_OPEN_DRIVER */
|
| - /* FT_OPEN_PARAMS */
|
| - /* */
|
| - /* FT_LOAD_DEFAULT */
|
| - /* FT_LOAD_RENDER */
|
| - /* FT_LOAD_MONOCHROME */
|
| - /* FT_LOAD_LINEAR_DESIGN */
|
| - /* FT_LOAD_NO_SCALE */
|
| - /* FT_LOAD_NO_HINTING */
|
| - /* FT_LOAD_NO_BITMAP */
|
| - /* FT_LOAD_NO_AUTOHINT */
|
| - /* FT_LOAD_COLOR */
|
| - /* */
|
| - /* FT_LOAD_VERTICAL_LAYOUT */
|
| - /* FT_LOAD_IGNORE_TRANSFORM */
|
| - /* FT_LOAD_FORCE_AUTOHINT */
|
| - /* FT_LOAD_NO_RECURSE */
|
| - /* FT_LOAD_PEDANTIC */
|
| - /* */
|
| - /* FT_LOAD_TARGET_NORMAL */
|
| - /* FT_LOAD_TARGET_LIGHT */
|
| - /* FT_LOAD_TARGET_MONO */
|
| - /* FT_LOAD_TARGET_LCD */
|
| - /* FT_LOAD_TARGET_LCD_V */
|
| - /* */
|
| - /* FT_LOAD_TARGET_MODE */
|
| - /* */
|
| - /* FT_Render_Glyph */
|
| - /* FT_Render_Mode */
|
| - /* FT_Get_Kerning */
|
| - /* FT_Kerning_Mode */
|
| - /* FT_Get_Track_Kerning */
|
| - /* FT_Get_Glyph_Name */
|
| - /* FT_Get_Postscript_Name */
|
| - /* */
|
| - /* FT_CharMapRec */
|
| - /* FT_Select_Charmap */
|
| - /* FT_Set_Charmap */
|
| - /* FT_Get_Charmap_Index */
|
| - /* */
|
| - /* FT_Get_FSType_Flags */
|
| - /* FT_Get_SubGlyph_Info */
|
| - /* */
|
| - /* FT_Face_Internal */
|
| - /* FT_Size_Internal */
|
| - /* FT_Slot_Internal */
|
| - /* */
|
| - /* FT_FACE_FLAG_XXX */
|
| - /* FT_STYLE_FLAG_XXX */
|
| - /* FT_OPEN_XXX */
|
| - /* FT_LOAD_XXX */
|
| - /* FT_LOAD_TARGET_XXX */
|
| - /* FT_SUBGLYPH_FLAG_XXX */
|
| - /* FT_FSTYPE_XXX */
|
| - /* */
|
| - /* FT_HAS_FAST_GLYPHS */
|
| - /* */
|
| - /*************************************************************************/
|
| -
|
| -
|
| - /*************************************************************************/
|
| - /* */
|
| - /* <Struct> */
|
| - /* FT_Glyph_Metrics */
|
| - /* */
|
| - /* <Description> */
|
| - /* A structure used to model the metrics of a single glyph. The */
|
| - /* values are expressed in 26.6 fractional pixel format; if the flag */
|
| - /* @FT_LOAD_NO_SCALE has been used while loading the glyph, values */
|
| - /* are expressed in font units instead. */
|
| - /* */
|
| - /* <Fields> */
|
| - /* width :: */
|
| - /* The glyph's width. */
|
| - /* */
|
| - /* height :: */
|
| - /* The glyph's height. */
|
| - /* */
|
| - /* horiBearingX :: */
|
| - /* Left side bearing for horizontal layout. */
|
| - /* */
|
| - /* horiBearingY :: */
|
| - /* Top side bearing for horizontal layout. */
|
| - /* */
|
| - /* horiAdvance :: */
|
| - /* Advance width for horizontal layout. */
|
| - /* */
|
| - /* vertBearingX :: */
|
| - /* Left side bearing for vertical layout. */
|
| - /* */
|
| - /* vertBearingY :: */
|
| - /* Top side bearing for vertical layout. Larger positive values */
|
| - /* mean further below the vertical glyph origin. */
|
| - /* */
|
| - /* vertAdvance :: */
|
| - /* Advance height for vertical layout. Positive values mean the */
|
| - /* glyph has a positive advance downward. */
|
| - /* */
|
| - /* <Note> */
|
| - /* If not disabled with @FT_LOAD_NO_HINTING, the values represent */
|
| - /* dimensions of the hinted glyph (in case hinting is applicable). */
|
| - /* */
|
| - /* Stroking a glyph with an outside border does not increase */
|
| - /* `horiAdvance' or `vertAdvance'; you have to manually adjust these */
|
| - /* values to account for the added width and height. */
|
| - /* */
|
| - typedef struct FT_Glyph_Metrics_
|
| - {
|
| - FT_Pos width;
|
| - FT_Pos height;
|
| -
|
| - FT_Pos horiBearingX;
|
| - FT_Pos horiBearingY;
|
| - FT_Pos horiAdvance;
|
| -
|
| - FT_Pos vertBearingX;
|
| - FT_Pos vertBearingY;
|
| - FT_Pos vertAdvance;
|
| -
|
| - } FT_Glyph_Metrics;
|
| -
|
| -
|
| - /*************************************************************************/
|
| - /* */
|
| - /* <Struct> */
|
| - /* FT_Bitmap_Size */
|
| - /* */
|
| - /* <Description> */
|
| - /* This structure models the metrics of a bitmap strike (i.e., a set */
|
| - /* of glyphs for a given point size and resolution) in a bitmap font. */
|
| - /* It is used for the `available_sizes' field of @FT_Face. */
|
| - /* */
|
| - /* <Fields> */
|
| - /* height :: The vertical distance, in pixels, between two */
|
| - /* consecutive baselines. It is always positive. */
|
| - /* */
|
| - /* width :: The average width, in pixels, of all glyphs in the */
|
| - /* strike. */
|
| - /* */
|
| - /* size :: The nominal size of the strike in 26.6 fractional */
|
| - /* points. This field is not very useful. */
|
| - /* */
|
| - /* x_ppem :: The horizontal ppem (nominal width) in 26.6 fractional */
|
| - /* pixels. */
|
| - /* */
|
| - /* y_ppem :: The vertical ppem (nominal height) in 26.6 fractional */
|
| - /* pixels. */
|
| - /* */
|
| - /* <Note> */
|
| - /* Windows FNT: */
|
| - /* The nominal size given in a FNT font is not reliable. Thus when */
|
| - /* the driver finds it incorrect, it sets `size' to some calculated */
|
| - /* values and sets `x_ppem' and `y_ppem' to the pixel width and */
|
| - /* height given in the font, respectively. */
|
| - /* */
|
| - /* TrueType embedded bitmaps: */
|
| - /* `size', `width', and `height' values are not contained in the */
|
| - /* bitmap strike itself. They are computed from the global font */
|
| - /* parameters. */
|
| - /* */
|
| - typedef struct FT_Bitmap_Size_
|
| - {
|
| - FT_Short height;
|
| - FT_Short width;
|
| -
|
| - FT_Pos size;
|
| -
|
| - FT_Pos x_ppem;
|
| - FT_Pos y_ppem;
|
| -
|
| - } FT_Bitmap_Size;
|
| -
|
| -
|
| - /*************************************************************************/
|
| - /*************************************************************************/
|
| - /* */
|
| - /* O B J E C T C L A S S E S */
|
| - /* */
|
| - /*************************************************************************/
|
| - /*************************************************************************/
|
| -
|
| - /*************************************************************************/
|
| - /* */
|
| - /* <Type> */
|
| - /* FT_Library */
|
| - /* */
|
| - /* <Description> */
|
| - /* A handle to a FreeType library instance. Each `library' is */
|
| - /* completely independent from the others; it is the `root' of a set */
|
| - /* of objects like fonts, faces, sizes, etc. */
|
| - /* */
|
| - /* It also embeds a memory manager (see @FT_Memory), as well as a */
|
| - /* scan-line converter object (see @FT_Raster). */
|
| - /* */
|
| - /* In multi-threaded applications, make sure that the same FT_Library */
|
| - /* object or any of its children doesn't get accessed in parallel. */
|
| - /* */
|
| - /* <Note> */
|
| - /* Library objects are normally created by @FT_Init_FreeType, and */
|
| - /* destroyed with @FT_Done_FreeType. If you need reference-counting */
|
| - /* (cf. @FT_Reference_Library), use @FT_New_Library and */
|
| - /* @FT_Done_Library. */
|
| - /* */
|
| - typedef struct FT_LibraryRec_ *FT_Library;
|
| -
|
| -
|
| - /*************************************************************************/
|
| - /* */
|
| - /* <Section> */
|
| - /* module_management */
|
| - /* */
|
| - /*************************************************************************/
|
| -
|
| - /*************************************************************************/
|
| - /* */
|
| - /* <Type> */
|
| - /* FT_Module */
|
| - /* */
|
| - /* <Description> */
|
| - /* A handle to a given FreeType module object. Each module can be a */
|
| - /* font driver, a renderer, or anything else that provides services */
|
| - /* to the formers. */
|
| - /* */
|
| - typedef struct FT_ModuleRec_* FT_Module;
|
| -
|
| -
|
| - /*************************************************************************/
|
| - /* */
|
| - /* <Type> */
|
| - /* FT_Driver */
|
| - /* */
|
| - /* <Description> */
|
| - /* A handle to a given FreeType font driver object. Each font driver */
|
| - /* is a special module capable of creating faces from font files. */
|
| - /* */
|
| - typedef struct FT_DriverRec_* FT_Driver;
|
| -
|
| -
|
| - /*************************************************************************/
|
| - /* */
|
| - /* <Type> */
|
| - /* FT_Renderer */
|
| - /* */
|
| - /* <Description> */
|
| - /* A handle to a given FreeType renderer. A renderer is a special */
|
| - /* module in charge of converting a glyph image to a bitmap, when */
|
| - /* necessary. Each renderer supports a given glyph image format, and */
|
| - /* one or more target surface depths. */
|
| - /* */
|
| - typedef struct FT_RendererRec_* FT_Renderer;
|
| -
|
| -
|
| - /*************************************************************************/
|
| - /* */
|
| - /* <Section> */
|
| - /* base_interface */
|
| - /* */
|
| - /*************************************************************************/
|
| -
|
| - /*************************************************************************/
|
| - /* */
|
| - /* <Type> */
|
| - /* FT_Face */
|
| - /* */
|
| - /* <Description> */
|
| - /* A handle to a given typographic face object. A face object models */
|
| - /* a given typeface, in a given style. */
|
| - /* */
|
| - /* <Note> */
|
| - /* Each face object also owns a single @FT_GlyphSlot object, as well */
|
| - /* as one or more @FT_Size objects. */
|
| - /* */
|
| - /* Use @FT_New_Face or @FT_Open_Face to create a new face object from */
|
| - /* a given filepathname or a custom input stream. */
|
| - /* */
|
| - /* Use @FT_Done_Face to destroy it (along with its slot and sizes). */
|
| - /* */
|
| - /* <Also> */
|
| - /* See @FT_FaceRec for the publicly accessible fields of a given face */
|
| - /* object. */
|
| - /* */
|
| - typedef struct FT_FaceRec_* FT_Face;
|
| -
|
| -
|
| - /*************************************************************************/
|
| - /* */
|
| - /* <Type> */
|
| - /* FT_Size */
|
| - /* */
|
| - /* <Description> */
|
| - /* A handle to an object used to model a face scaled to a given */
|
| - /* character size. */
|
| - /* */
|
| - /* <Note> */
|
| - /* Each @FT_Face has an _active_ @FT_Size object that is used by */
|
| - /* functions like @FT_Load_Glyph to determine the scaling */
|
| - /* transformation that in turn is used to load and hint glyphs and */
|
| - /* metrics. */
|
| - /* */
|
| - /* You can use @FT_Set_Char_Size, @FT_Set_Pixel_Sizes, */
|
| - /* @FT_Request_Size or even @FT_Select_Size to change the content */
|
| - /* (i.e., the scaling values) of the active @FT_Size. */
|
| - /* */
|
| - /* You can use @FT_New_Size to create additional size objects for a */
|
| - /* given @FT_Face, but they won't be used by other functions until */
|
| - /* you activate it through @FT_Activate_Size. Only one size can be */
|
| - /* activated at any given time per face. */
|
| - /* */
|
| - /* <Also> */
|
| - /* See @FT_SizeRec for the publicly accessible fields of a given size */
|
| - /* object. */
|
| - /* */
|
| - typedef struct FT_SizeRec_* FT_Size;
|
| -
|
| -
|
| - /*************************************************************************/
|
| - /* */
|
| - /* <Type> */
|
| - /* FT_GlyphSlot */
|
| - /* */
|
| - /* <Description> */
|
| - /* A handle to a given `glyph slot'. A slot is a container where it */
|
| - /* is possible to load any of the glyphs contained in its parent */
|
| - /* face. */
|
| - /* */
|
| - /* In other words, each time you call @FT_Load_Glyph or */
|
| - /* @FT_Load_Char, the slot's content is erased by the new glyph data, */
|
| - /* i.e., the glyph's metrics, its image (bitmap or outline), and */
|
| - /* other control information. */
|
| - /* */
|
| - /* <Also> */
|
| - /* See @FT_GlyphSlotRec for the publicly accessible glyph fields. */
|
| - /* */
|
| - typedef struct FT_GlyphSlotRec_* FT_GlyphSlot;
|
| -
|
| -
|
| - /*************************************************************************/
|
| - /* */
|
| - /* <Type> */
|
| - /* FT_CharMap */
|
| - /* */
|
| - /* <Description> */
|
| - /* A handle to a given character map. A charmap is used to translate */
|
| - /* character codes in a given encoding into glyph indexes for its */
|
| - /* parent's face. Some font formats may provide several charmaps per */
|
| - /* font. */
|
| - /* */
|
| - /* Each face object owns zero or more charmaps, but only one of them */
|
| - /* can be `active' and used by @FT_Get_Char_Index or @FT_Load_Char. */
|
| - /* */
|
| - /* The list of available charmaps in a face is available through the */
|
| - /* `face->num_charmaps' and `face->charmaps' fields of @FT_FaceRec. */
|
| - /* */
|
| - /* The currently active charmap is available as `face->charmap'. */
|
| - /* You should call @FT_Set_Charmap to change it. */
|
| - /* */
|
| - /* <Note> */
|
| - /* When a new face is created (either through @FT_New_Face or */
|
| - /* @FT_Open_Face), the library looks for a Unicode charmap within */
|
| - /* the list and automatically activates it. */
|
| - /* */
|
| - /* <Also> */
|
| - /* See @FT_CharMapRec for the publicly accessible fields of a given */
|
| - /* character map. */
|
| - /* */
|
| - typedef struct FT_CharMapRec_* FT_CharMap;
|
| -
|
| -
|
| - /*************************************************************************/
|
| - /* */
|
| - /* <Macro> */
|
| - /* FT_ENC_TAG */
|
| - /* */
|
| - /* <Description> */
|
| - /* This macro converts four-letter tags into an unsigned long. It is */
|
| - /* used to define `encoding' identifiers (see @FT_Encoding). */
|
| - /* */
|
| - /* <Note> */
|
| - /* Since many 16-bit compilers don't like 32-bit enumerations, you */
|
| - /* should redefine this macro in case of problems to something like */
|
| - /* this: */
|
| - /* */
|
| - /* { */
|
| - /* #define FT_ENC_TAG( value, a, b, c, d ) value */
|
| - /* } */
|
| - /* */
|
| - /* to get a simple enumeration without assigning special numbers. */
|
| - /* */
|
| -
|
| -#ifndef FT_ENC_TAG
|
| -#define FT_ENC_TAG( value, a, b, c, d ) \
|
| - value = ( ( (FT_UInt32)(a) << 24 ) | \
|
| - ( (FT_UInt32)(b) << 16 ) | \
|
| - ( (FT_UInt32)(c) << 8 ) | \
|
| - (FT_UInt32)(d) )
|
| -
|
| -#endif /* FT_ENC_TAG */
|
| -
|
| -
|
| - /*************************************************************************/
|
| - /* */
|
| - /* <Enum> */
|
| - /* FT_Encoding */
|
| - /* */
|
| - /* <Description> */
|
| - /* An enumeration used to specify character sets supported by */
|
| - /* charmaps. Used in the @FT_Select_Charmap API function. */
|
| - /* */
|
| - /* <Note> */
|
| - /* Despite the name, this enumeration lists specific character */
|
| - /* repertories (i.e., charsets), and not text encoding methods (e.g., */
|
| - /* UTF-8, UTF-16, etc.). */
|
| - /* */
|
| - /* Other encodings might be defined in the future. */
|
| - /* */
|
| - /* <Values> */
|
| - /* FT_ENCODING_NONE :: */
|
| - /* The encoding value~0 is reserved. */
|
| - /* */
|
| - /* FT_ENCODING_UNICODE :: */
|
| - /* Corresponds to the Unicode character set. This value covers */
|
| - /* all versions of the Unicode repertoire, including ASCII and */
|
| - /* Latin-1. Most fonts include a Unicode charmap, but not all */
|
| - /* of them. */
|
| - /* */
|
| - /* For example, if you want to access Unicode value U+1F028 (and */
|
| - /* the font contains it), use value 0x1F028 as the input value for */
|
| - /* @FT_Get_Char_Index. */
|
| - /* */
|
| - /* FT_ENCODING_MS_SYMBOL :: */
|
| - /* Corresponds to the Microsoft Symbol encoding, used to encode */
|
| - /* mathematical symbols in the 32..255 character code range. For */
|
| - /* more information, see */
|
| - /* `http://www.kostis.net/charsets/symbol.htm'. */
|
| - /* */
|
| - /* FT_ENCODING_SJIS :: */
|
| - /* Corresponds to Japanese SJIS encoding. More info at */
|
| - /* at `http://en.wikipedia.org/wiki/Shift_JIS'. */
|
| - /* See note on multi-byte encodings below. */
|
| - /* */
|
| - /* FT_ENCODING_GB2312 :: */
|
| - /* Corresponds to an encoding system for Simplified Chinese as used */
|
| - /* used in mainland China. */
|
| - /* */
|
| - /* FT_ENCODING_BIG5 :: */
|
| - /* Corresponds to an encoding system for Traditional Chinese as */
|
| - /* used in Taiwan and Hong Kong. */
|
| - /* */
|
| - /* FT_ENCODING_WANSUNG :: */
|
| - /* Corresponds to the Korean encoding system known as Wansung. */
|
| - /* For more information see */
|
| - /* `http://msdn.microsoft.com/en-US/goglobal/cc305154'. */
|
| - /* */
|
| - /* FT_ENCODING_JOHAB :: */
|
| - /* The Korean standard character set (KS~C 5601-1992), which */
|
| - /* corresponds to MS Windows code page 1361. This character set */
|
| - /* includes all possible Hangeul character combinations. */
|
| - /* */
|
| - /* FT_ENCODING_ADOBE_LATIN_1 :: */
|
| - /* Corresponds to a Latin-1 encoding as defined in a Type~1 */
|
| - /* PostScript font. It is limited to 256 character codes. */
|
| - /* */
|
| - /* FT_ENCODING_ADOBE_STANDARD :: */
|
| - /* Corresponds to the Adobe Standard encoding, as found in Type~1, */
|
| - /* CFF, and OpenType/CFF fonts. It is limited to 256 character */
|
| - /* codes. */
|
| - /* */
|
| - /* FT_ENCODING_ADOBE_EXPERT :: */
|
| - /* Corresponds to the Adobe Expert encoding, as found in Type~1, */
|
| - /* CFF, and OpenType/CFF fonts. It is limited to 256 character */
|
| - /* codes. */
|
| - /* */
|
| - /* FT_ENCODING_ADOBE_CUSTOM :: */
|
| - /* Corresponds to a custom encoding, as found in Type~1, CFF, and */
|
| - /* OpenType/CFF fonts. It is limited to 256 character codes. */
|
| - /* */
|
| - /* FT_ENCODING_APPLE_ROMAN :: */
|
| - /* Corresponds to the 8-bit Apple roman encoding. Many TrueType */
|
| - /* and OpenType fonts contain a charmap for this encoding, since */
|
| - /* older versions of Mac OS are able to use it. */
|
| - /* */
|
| - /* FT_ENCODING_OLD_LATIN_2 :: */
|
| - /* This value is deprecated and was never used nor reported by */
|
| - /* FreeType. Don't use or test for it. */
|
| - /* */
|
| - /* FT_ENCODING_MS_SJIS :: */
|
| - /* Same as FT_ENCODING_SJIS. Deprecated. */
|
| - /* */
|
| - /* FT_ENCODING_MS_GB2312 :: */
|
| - /* Same as FT_ENCODING_GB2312. Deprecated. */
|
| - /* */
|
| - /* FT_ENCODING_MS_BIG5 :: */
|
| - /* Same as FT_ENCODING_BIG5. Deprecated. */
|
| - /* */
|
| - /* FT_ENCODING_MS_WANSUNG :: */
|
| - /* Same as FT_ENCODING_WANSUNG. Deprecated. */
|
| - /* */
|
| - /* FT_ENCODING_MS_JOHAB :: */
|
| - /* Same as FT_ENCODING_JOHAB. Deprecated. */
|
| - /* */
|
| - /* <Note> */
|
| - /* By default, FreeType automatically synthesizes a Unicode charmap */
|
| - /* for PostScript fonts, using their glyph names dictionaries. */
|
| - /* However, it also reports the encodings defined explicitly in the */
|
| - /* font file, for the cases when they are needed, with the Adobe */
|
| - /* values as well. */
|
| - /* */
|
| - /* FT_ENCODING_NONE is set by the BDF and PCF drivers if the charmap */
|
| - /* is neither Unicode nor ISO-8859-1 (otherwise it is set to */
|
| - /* FT_ENCODING_UNICODE). Use @FT_Get_BDF_Charset_ID to find out */
|
| - /* which encoding is really present. If, for example, the */
|
| - /* `cs_registry' field is `KOI8' and the `cs_encoding' field is `R', */
|
| - /* the font is encoded in KOI8-R. */
|
| - /* */
|
| - /* FT_ENCODING_NONE is always set (with a single exception) by the */
|
| - /* winfonts driver. Use @FT_Get_WinFNT_Header and examine the */
|
| - /* `charset' field of the @FT_WinFNT_HeaderRec structure to find out */
|
| - /* which encoding is really present. For example, */
|
| - /* @FT_WinFNT_ID_CP1251 (204) means Windows code page 1251 (for */
|
| - /* Russian). */
|
| - /* */
|
| - /* FT_ENCODING_NONE is set if `platform_id' is @TT_PLATFORM_MACINTOSH */
|
| - /* and `encoding_id' is not @TT_MAC_ID_ROMAN (otherwise it is set to */
|
| - /* FT_ENCODING_APPLE_ROMAN). */
|
| - /* */
|
| - /* If `platform_id' is @TT_PLATFORM_MACINTOSH, use the function */
|
| - /* @FT_Get_CMap_Language_ID to query the Mac language ID that may */
|
| - /* be needed to be able to distinguish Apple encoding variants. See */
|
| - /* */
|
| - /* http://www.unicode.org/Public/MAPPINGS/VENDORS/APPLE/Readme.txt */
|
| - /* */
|
| - /* to get an idea how to do that. Basically, if the language ID */
|
| - /* is~0, don't use it, otherwise subtract 1 from the language ID. */
|
| - /* Then examine `encoding_id'. If, for example, `encoding_id' is */
|
| - /* @TT_MAC_ID_ROMAN and the language ID (minus~1) is */
|
| - /* `TT_MAC_LANGID_GREEK', it is the Greek encoding, not Roman. */
|
| - /* @TT_MAC_ID_ARABIC with `TT_MAC_LANGID_FARSI' means the Farsi */
|
| - /* variant the Arabic encoding. */
|
| - /* */
|
| - typedef enum FT_Encoding_
|
| - {
|
| - FT_ENC_TAG( FT_ENCODING_NONE, 0, 0, 0, 0 ),
|
| -
|
| - FT_ENC_TAG( FT_ENCODING_MS_SYMBOL, 's', 'y', 'm', 'b' ),
|
| - FT_ENC_TAG( FT_ENCODING_UNICODE, 'u', 'n', 'i', 'c' ),
|
| -
|
| - FT_ENC_TAG( FT_ENCODING_SJIS, 's', 'j', 'i', 's' ),
|
| - FT_ENC_TAG( FT_ENCODING_GB2312, 'g', 'b', ' ', ' ' ),
|
| - FT_ENC_TAG( FT_ENCODING_BIG5, 'b', 'i', 'g', '5' ),
|
| - FT_ENC_TAG( FT_ENCODING_WANSUNG, 'w', 'a', 'n', 's' ),
|
| - FT_ENC_TAG( FT_ENCODING_JOHAB, 'j', 'o', 'h', 'a' ),
|
| -
|
| - /* for backwards compatibility */
|
| - FT_ENCODING_MS_SJIS = FT_ENCODING_SJIS,
|
| - FT_ENCODING_MS_GB2312 = FT_ENCODING_GB2312,
|
| - FT_ENCODING_MS_BIG5 = FT_ENCODING_BIG5,
|
| - FT_ENCODING_MS_WANSUNG = FT_ENCODING_WANSUNG,
|
| - FT_ENCODING_MS_JOHAB = FT_ENCODING_JOHAB,
|
| -
|
| - FT_ENC_TAG( FT_ENCODING_ADOBE_STANDARD, 'A', 'D', 'O', 'B' ),
|
| - FT_ENC_TAG( FT_ENCODING_ADOBE_EXPERT, 'A', 'D', 'B', 'E' ),
|
| - FT_ENC_TAG( FT_ENCODING_ADOBE_CUSTOM, 'A', 'D', 'B', 'C' ),
|
| - FT_ENC_TAG( FT_ENCODING_ADOBE_LATIN_1, 'l', 'a', 't', '1' ),
|
| -
|
| - FT_ENC_TAG( FT_ENCODING_OLD_LATIN_2, 'l', 'a', 't', '2' ),
|
| -
|
| - FT_ENC_TAG( FT_ENCODING_APPLE_ROMAN, 'a', 'r', 'm', 'n' )
|
| -
|
| - } FT_Encoding;
|
| -
|
| -
|
| - /* these constants are deprecated; use the corresponding `FT_Encoding' */
|
| - /* values instead */
|
| -#define ft_encoding_none FT_ENCODING_NONE
|
| -#define ft_encoding_unicode FT_ENCODING_UNICODE
|
| -#define ft_encoding_symbol FT_ENCODING_MS_SYMBOL
|
| -#define ft_encoding_latin_1 FT_ENCODING_ADOBE_LATIN_1
|
| -#define ft_encoding_latin_2 FT_ENCODING_OLD_LATIN_2
|
| -#define ft_encoding_sjis FT_ENCODING_SJIS
|
| -#define ft_encoding_gb2312 FT_ENCODING_GB2312
|
| -#define ft_encoding_big5 FT_ENCODING_BIG5
|
| -#define ft_encoding_wansung FT_ENCODING_WANSUNG
|
| -#define ft_encoding_johab FT_ENCODING_JOHAB
|
| -
|
| -#define ft_encoding_adobe_standard FT_ENCODING_ADOBE_STANDARD
|
| -#define ft_encoding_adobe_expert FT_ENCODING_ADOBE_EXPERT
|
| -#define ft_encoding_adobe_custom FT_ENCODING_ADOBE_CUSTOM
|
| -#define ft_encoding_apple_roman FT_ENCODING_APPLE_ROMAN
|
| -
|
| -
|
| - /*************************************************************************/
|
| - /* */
|
| - /* <Struct> */
|
| - /* FT_CharMapRec */
|
| - /* */
|
| - /* <Description> */
|
| - /* The base charmap structure. */
|
| - /* */
|
| - /* <Fields> */
|
| - /* face :: A handle to the parent face object. */
|
| - /* */
|
| - /* encoding :: An @FT_Encoding tag identifying the charmap. Use */
|
| - /* this with @FT_Select_Charmap. */
|
| - /* */
|
| - /* platform_id :: An ID number describing the platform for the */
|
| - /* following encoding ID. This comes directly from */
|
| - /* the TrueType specification and should be emulated */
|
| - /* for other formats. */
|
| - /* */
|
| - /* encoding_id :: A platform specific encoding number. This also */
|
| - /* comes from the TrueType specification and should be */
|
| - /* emulated similarly. */
|
| - /* */
|
| - typedef struct FT_CharMapRec_
|
| - {
|
| - FT_Face face;
|
| - FT_Encoding encoding;
|
| - FT_UShort platform_id;
|
| - FT_UShort encoding_id;
|
| -
|
| - } FT_CharMapRec;
|
| -
|
| -
|
| - /*************************************************************************/
|
| - /*************************************************************************/
|
| - /* */
|
| - /* B A S E O B J E C T C L A S S E S */
|
| - /* */
|
| - /*************************************************************************/
|
| - /*************************************************************************/
|
| -
|
| -
|
| - /*************************************************************************/
|
| - /* */
|
| - /* <Type> */
|
| - /* FT_Face_Internal */
|
| - /* */
|
| - /* <Description> */
|
| - /* An opaque handle to an `FT_Face_InternalRec' structure, used to */
|
| - /* model private data of a given @FT_Face object. */
|
| - /* */
|
| - /* This structure might change between releases of FreeType~2 and is */
|
| - /* not generally available to client applications. */
|
| - /* */
|
| - typedef struct FT_Face_InternalRec_* FT_Face_Internal;
|
| -
|
| -
|
| - /*************************************************************************/
|
| - /* */
|
| - /* <Struct> */
|
| - /* FT_FaceRec */
|
| - /* */
|
| - /* <Description> */
|
| - /* FreeType root face class structure. A face object models a */
|
| - /* typeface in a font file. */
|
| - /* */
|
| - /* <Fields> */
|
| - /* num_faces :: The number of faces in the font file. Some */
|
| - /* font formats can have multiple faces in */
|
| - /* a font file. */
|
| - /* */
|
| - /* face_index :: The index of the face in the font file. It */
|
| - /* is set to~0 if there is only one face in */
|
| - /* the font file. */
|
| - /* */
|
| - /* face_flags :: A set of bit flags that give important */
|
| - /* information about the face; see */
|
| - /* @FT_FACE_FLAG_XXX for the details. */
|
| - /* */
|
| - /* style_flags :: A set of bit flags indicating the style of */
|
| - /* the face; see @FT_STYLE_FLAG_XXX for the */
|
| - /* details. */
|
| - /* */
|
| - /* num_glyphs :: The number of glyphs in the face. If the */
|
| - /* face is scalable and has sbits (see */
|
| - /* `num_fixed_sizes'), it is set to the number */
|
| - /* of outline glyphs. */
|
| - /* */
|
| - /* For CID-keyed fonts, this value gives the */
|
| - /* highest CID used in the font. */
|
| - /* */
|
| - /* family_name :: The face's family name. This is an ASCII */
|
| - /* string, usually in English, that describes */
|
| - /* the typeface's family (like `Times New */
|
| - /* Roman', `Bodoni', `Garamond', etc). This */
|
| - /* is a least common denominator used to list */
|
| - /* fonts. Some formats (TrueType & OpenType) */
|
| - /* provide localized and Unicode versions of */
|
| - /* this string. Applications should use the */
|
| - /* format specific interface to access them. */
|
| - /* Can be NULL (e.g., in fonts embedded in a */
|
| - /* PDF file). */
|
| - /* */
|
| - /* style_name :: The face's style name. This is an ASCII */
|
| - /* string, usually in English, that describes */
|
| - /* the typeface's style (like `Italic', */
|
| - /* `Bold', `Condensed', etc). Not all font */
|
| - /* formats provide a style name, so this field */
|
| - /* is optional, and can be set to NULL. As */
|
| - /* for `family_name', some formats provide */
|
| - /* localized and Unicode versions of this */
|
| - /* string. Applications should use the format */
|
| - /* specific interface to access them. */
|
| - /* */
|
| - /* num_fixed_sizes :: The number of bitmap strikes in the face. */
|
| - /* Even if the face is scalable, there might */
|
| - /* still be bitmap strikes, which are called */
|
| - /* `sbits' in that case. */
|
| - /* */
|
| - /* available_sizes :: An array of @FT_Bitmap_Size for all bitmap */
|
| - /* strikes in the face. It is set to NULL if */
|
| - /* there is no bitmap strike. */
|
| - /* */
|
| - /* num_charmaps :: The number of charmaps in the face. */
|
| - /* */
|
| - /* charmaps :: An array of the charmaps of the face. */
|
| - /* */
|
| - /* generic :: A field reserved for client uses. See the */
|
| - /* @FT_Generic type description. */
|
| - /* */
|
| - /* bbox :: The font bounding box. Coordinates are */
|
| - /* expressed in font units (see */
|
| - /* `units_per_EM'). The box is large enough */
|
| - /* to contain any glyph from the font. Thus, */
|
| - /* `bbox.yMax' can be seen as the `maximum */
|
| - /* ascender', and `bbox.yMin' as the `minimum */
|
| - /* descender'. Only relevant for scalable */
|
| - /* formats. */
|
| - /* */
|
| - /* Note that the bounding box might be off by */
|
| - /* (at least) one pixel for hinted fonts. See */
|
| - /* @FT_Size_Metrics for further discussion. */
|
| - /* */
|
| - /* units_per_EM :: The number of font units per EM square for */
|
| - /* this face. This is typically 2048 for */
|
| - /* TrueType fonts, and 1000 for Type~1 fonts. */
|
| - /* Only relevant for scalable formats. */
|
| - /* */
|
| - /* ascender :: The typographic ascender of the face, */
|
| - /* expressed in font units. For font formats */
|
| - /* not having this information, it is set to */
|
| - /* `bbox.yMax'. Only relevant for scalable */
|
| - /* formats. */
|
| - /* */
|
| - /* descender :: The typographic descender of the face, */
|
| - /* expressed in font units. For font formats */
|
| - /* not having this information, it is set to */
|
| - /* `bbox.yMin'. Note that this field is */
|
| - /* usually negative. Only relevant for */
|
| - /* scalable formats. */
|
| - /* */
|
| - /* height :: This value is the vertical distance */
|
| - /* between two consecutive baselines, */
|
| - /* expressed in font units. It is always */
|
| - /* positive. Only relevant for scalable */
|
| - /* formats. */
|
| - /* */
|
| - /* If you want the global glyph height, use */
|
| - /* `ascender - descender'. */
|
| - /* */
|
| - /* max_advance_width :: The maximum advance width, in font units, */
|
| - /* for all glyphs in this face. This can be */
|
| - /* used to make word wrapping computations */
|
| - /* faster. Only relevant for scalable */
|
| - /* formats. */
|
| - /* */
|
| - /* max_advance_height :: The maximum advance height, in font units, */
|
| - /* for all glyphs in this face. This is only */
|
| - /* relevant for vertical layouts, and is set */
|
| - /* to `height' for fonts that do not provide */
|
| - /* vertical metrics. Only relevant for */
|
| - /* scalable formats. */
|
| - /* */
|
| - /* underline_position :: The position, in font units, of the */
|
| - /* underline line for this face. It is the */
|
| - /* center of the underlining stem. Only */
|
| - /* relevant for scalable formats. */
|
| - /* */
|
| - /* underline_thickness :: The thickness, in font units, of the */
|
| - /* underline for this face. Only relevant for */
|
| - /* scalable formats. */
|
| - /* */
|
| - /* glyph :: The face's associated glyph slot(s). */
|
| - /* */
|
| - /* size :: The current active size for this face. */
|
| - /* */
|
| - /* charmap :: The current active charmap for this face. */
|
| - /* */
|
| - /* <Note> */
|
| - /* Fields may be changed after a call to @FT_Attach_File or */
|
| - /* @FT_Attach_Stream. */
|
| - /* */
|
| - typedef struct FT_FaceRec_
|
| - {
|
| - FT_Long num_faces;
|
| - FT_Long face_index;
|
| -
|
| - FT_Long face_flags;
|
| - FT_Long style_flags;
|
| -
|
| - FT_Long num_glyphs;
|
| -
|
| - FT_String* family_name;
|
| - FT_String* style_name;
|
| -
|
| - FT_Int num_fixed_sizes;
|
| - FT_Bitmap_Size* available_sizes;
|
| -
|
| - FT_Int num_charmaps;
|
| - FT_CharMap* charmaps;
|
| -
|
| - FT_Generic generic;
|
| -
|
| - /*# The following member variables (down to `underline_thickness') */
|
| - /*# are only relevant to scalable outlines; cf. @FT_Bitmap_Size */
|
| - /*# for bitmap fonts. */
|
| - FT_BBox bbox;
|
| -
|
| - FT_UShort units_per_EM;
|
| - FT_Short ascender;
|
| - FT_Short descender;
|
| - FT_Short height;
|
| -
|
| - FT_Short max_advance_width;
|
| - FT_Short max_advance_height;
|
| -
|
| - FT_Short underline_position;
|
| - FT_Short underline_thickness;
|
| -
|
| - FT_GlyphSlot glyph;
|
| - FT_Size size;
|
| - FT_CharMap charmap;
|
| -
|
| - /*@private begin */
|
| -
|
| - FT_Driver driver;
|
| - FT_Memory memory;
|
| - FT_Stream stream;
|
| -
|
| - FT_ListRec sizes_list;
|
| -
|
| - FT_Generic autohint; /* face-specific auto-hinter data */
|
| - void* extensions; /* unused */
|
| -
|
| - FT_Face_Internal internal;
|
| -
|
| - /*@private end */
|
| -
|
| - } FT_FaceRec;
|
| -
|
| -
|
| - /*************************************************************************/
|
| - /* */
|
| - /* <Enum> */
|
| - /* FT_FACE_FLAG_XXX */
|
| - /* */
|
| - /* <Description> */
|
| - /* A list of bit flags used in the `face_flags' field of the */
|
| - /* @FT_FaceRec structure. They inform client applications of */
|
| - /* properties of the corresponding face. */
|
| - /* */
|
| - /* <Values> */
|
| - /* FT_FACE_FLAG_SCALABLE :: */
|
| - /* Indicates that the face contains outline glyphs. This doesn't */
|
| - /* prevent bitmap strikes, i.e., a face can have both this and */
|
| - /* and @FT_FACE_FLAG_FIXED_SIZES set. */
|
| - /* */
|
| - /* FT_FACE_FLAG_FIXED_SIZES :: */
|
| - /* Indicates that the face contains bitmap strikes. See also the */
|
| - /* `num_fixed_sizes' and `available_sizes' fields of @FT_FaceRec. */
|
| - /* */
|
| - /* FT_FACE_FLAG_FIXED_WIDTH :: */
|
| - /* Indicates that the face contains fixed-width characters (like */
|
| - /* Courier, Lucido, MonoType, etc.). */
|
| - /* */
|
| - /* FT_FACE_FLAG_SFNT :: */
|
| - /* Indicates that the face uses the `sfnt' storage scheme. For */
|
| - /* now, this means TrueType and OpenType. */
|
| - /* */
|
| - /* FT_FACE_FLAG_HORIZONTAL :: */
|
| - /* Indicates that the face contains horizontal glyph metrics. This */
|
| - /* should be set for all common formats. */
|
| - /* */
|
| - /* FT_FACE_FLAG_VERTICAL :: */
|
| - /* Indicates that the face contains vertical glyph metrics. This */
|
| - /* is only available in some formats, not all of them. */
|
| - /* */
|
| - /* FT_FACE_FLAG_KERNING :: */
|
| - /* Indicates that the face contains kerning information. If set, */
|
| - /* the kerning distance can be retrieved through the function */
|
| - /* @FT_Get_Kerning. Otherwise the function always return the */
|
| - /* vector (0,0). Note that FreeType doesn't handle kerning data */
|
| - /* from the `GPOS' table (as present in some OpenType fonts). */
|
| - /* */
|
| - /* FT_FACE_FLAG_FAST_GLYPHS :: */
|
| - /* THIS FLAG IS DEPRECATED. DO NOT USE OR TEST IT. */
|
| - /* */
|
| - /* FT_FACE_FLAG_MULTIPLE_MASTERS :: */
|
| - /* Indicates that the font contains multiple masters and is capable */
|
| - /* of interpolating between them. See the multiple-masters */
|
| - /* specific API for details. */
|
| - /* */
|
| - /* FT_FACE_FLAG_GLYPH_NAMES :: */
|
| - /* Indicates that the font contains glyph names that can be */
|
| - /* retrieved through @FT_Get_Glyph_Name. Note that some TrueType */
|
| - /* fonts contain broken glyph name tables. Use the function */
|
| - /* @FT_Has_PS_Glyph_Names when needed. */
|
| - /* */
|
| - /* FT_FACE_FLAG_EXTERNAL_STREAM :: */
|
| - /* Used internally by FreeType to indicate that a face's stream was */
|
| - /* provided by the client application and should not be destroyed */
|
| - /* when @FT_Done_Face is called. Don't read or test this flag. */
|
| - /* */
|
| - /* FT_FACE_FLAG_HINTER :: */
|
| - /* Set if the font driver has a hinting machine of its own. For */
|
| - /* example, with TrueType fonts, it makes sense to use data from */
|
| - /* the SFNT `gasp' table only if the native TrueType hinting engine */
|
| - /* (with the bytecode interpreter) is available and active. */
|
| - /* */
|
| - /* FT_FACE_FLAG_CID_KEYED :: */
|
| - /* Set if the font is CID-keyed. In that case, the font is not */
|
| - /* accessed by glyph indices but by CID values. For subsetted */
|
| - /* CID-keyed fonts this has the consequence that not all index */
|
| - /* values are a valid argument to FT_Load_Glyph. Only the CID */
|
| - /* values for which corresponding glyphs in the subsetted font */
|
| - /* exist make FT_Load_Glyph return successfully; in all other cases */
|
| - /* you get an `FT_Err_Invalid_Argument' error. */
|
| - /* */
|
| - /* Note that CID-keyed fonts that are in an SFNT wrapper don't */
|
| - /* have this flag set since the glyphs are accessed in the normal */
|
| - /* way (using contiguous indices); the `CID-ness' isn't visible to */
|
| - /* the application. */
|
| - /* */
|
| - /* FT_FACE_FLAG_TRICKY :: */
|
| - /* Set if the font is `tricky', this is, it always needs the */
|
| - /* font format's native hinting engine to get a reasonable result. */
|
| - /* A typical example is the Chinese font `mingli.ttf' that uses */
|
| - /* TrueType bytecode instructions to move and scale all of its */
|
| - /* subglyphs. */
|
| - /* */
|
| - /* It is not possible to autohint such fonts using */
|
| - /* @FT_LOAD_FORCE_AUTOHINT; it will also ignore */
|
| - /* @FT_LOAD_NO_HINTING. You have to set both @FT_LOAD_NO_HINTING */
|
| - /* and @FT_LOAD_NO_AUTOHINT to really disable hinting; however, you */
|
| - /* probably never want this except for demonstration purposes. */
|
| - /* */
|
| - /* Currently, there are about a dozen TrueType fonts in the list of */
|
| - /* tricky fonts; they are hard-coded in file `ttobjs.c'. */
|
| - /* */
|
| - /* FT_FACE_FLAG_COLOR :: */
|
| - /* Set if the font has color glyph tables. To access color glyphs */
|
| - /* use @FT_LOAD_COLOR. */
|
| - /* */
|
| -#define FT_FACE_FLAG_SCALABLE ( 1L << 0 )
|
| -#define FT_FACE_FLAG_FIXED_SIZES ( 1L << 1 )
|
| -#define FT_FACE_FLAG_FIXED_WIDTH ( 1L << 2 )
|
| -#define FT_FACE_FLAG_SFNT ( 1L << 3 )
|
| -#define FT_FACE_FLAG_HORIZONTAL ( 1L << 4 )
|
| -#define FT_FACE_FLAG_VERTICAL ( 1L << 5 )
|
| -#define FT_FACE_FLAG_KERNING ( 1L << 6 )
|
| -#define FT_FACE_FLAG_FAST_GLYPHS ( 1L << 7 )
|
| -#define FT_FACE_FLAG_MULTIPLE_MASTERS ( 1L << 8 )
|
| -#define FT_FACE_FLAG_GLYPH_NAMES ( 1L << 9 )
|
| -#define FT_FACE_FLAG_EXTERNAL_STREAM ( 1L << 10 )
|
| -#define FT_FACE_FLAG_HINTER ( 1L << 11 )
|
| -#define FT_FACE_FLAG_CID_KEYED ( 1L << 12 )
|
| -#define FT_FACE_FLAG_TRICKY ( 1L << 13 )
|
| -#define FT_FACE_FLAG_COLOR ( 1L << 14 )
|
| -
|
| -
|
| - /*************************************************************************
|
| - *
|
| - * @macro:
|
| - * FT_HAS_HORIZONTAL( face )
|
| - *
|
| - * @description:
|
| - * A macro that returns true whenever a face object contains
|
| - * horizontal metrics (this is true for all font formats though).
|
| - *
|
| - * @also:
|
| - * @FT_HAS_VERTICAL can be used to check for vertical metrics.
|
| - *
|
| - */
|
| -#define FT_HAS_HORIZONTAL( face ) \
|
| - ( face->face_flags & FT_FACE_FLAG_HORIZONTAL )
|
| -
|
| -
|
| - /*************************************************************************
|
| - *
|
| - * @macro:
|
| - * FT_HAS_VERTICAL( face )
|
| - *
|
| - * @description:
|
| - * A macro that returns true whenever a face object contains real
|
| - * vertical metrics (and not only synthesized ones).
|
| - *
|
| - */
|
| -#define FT_HAS_VERTICAL( face ) \
|
| - ( face->face_flags & FT_FACE_FLAG_VERTICAL )
|
| -
|
| -
|
| - /*************************************************************************
|
| - *
|
| - * @macro:
|
| - * FT_HAS_KERNING( face )
|
| - *
|
| - * @description:
|
| - * A macro that returns true whenever a face object contains kerning
|
| - * data that can be accessed with @FT_Get_Kerning.
|
| - *
|
| - */
|
| -#define FT_HAS_KERNING( face ) \
|
| - ( face->face_flags & FT_FACE_FLAG_KERNING )
|
| -
|
| -
|
| - /*************************************************************************
|
| - *
|
| - * @macro:
|
| - * FT_IS_SCALABLE( face )
|
| - *
|
| - * @description:
|
| - * A macro that returns true whenever a face object contains a scalable
|
| - * font face (true for TrueType, Type~1, Type~42, CID, OpenType/CFF,
|
| - * and PFR font formats.
|
| - *
|
| - */
|
| -#define FT_IS_SCALABLE( face ) \
|
| - ( face->face_flags & FT_FACE_FLAG_SCALABLE )
|
| -
|
| -
|
| - /*************************************************************************
|
| - *
|
| - * @macro:
|
| - * FT_IS_SFNT( face )
|
| - *
|
| - * @description:
|
| - * A macro that returns true whenever a face object contains a font
|
| - * whose format is based on the SFNT storage scheme. This usually
|
| - * means: TrueType fonts, OpenType fonts, as well as SFNT-based embedded
|
| - * bitmap fonts.
|
| - *
|
| - * If this macro is true, all functions defined in @FT_SFNT_NAMES_H and
|
| - * @FT_TRUETYPE_TABLES_H are available.
|
| - *
|
| - */
|
| -#define FT_IS_SFNT( face ) \
|
| - ( face->face_flags & FT_FACE_FLAG_SFNT )
|
| -
|
| -
|
| - /*************************************************************************
|
| - *
|
| - * @macro:
|
| - * FT_IS_FIXED_WIDTH( face )
|
| - *
|
| - * @description:
|
| - * A macro that returns true whenever a face object contains a font face
|
| - * that contains fixed-width (or `monospace', `fixed-pitch', etc.)
|
| - * glyphs.
|
| - *
|
| - */
|
| -#define FT_IS_FIXED_WIDTH( face ) \
|
| - ( face->face_flags & FT_FACE_FLAG_FIXED_WIDTH )
|
| -
|
| -
|
| - /*************************************************************************
|
| - *
|
| - * @macro:
|
| - * FT_HAS_FIXED_SIZES( face )
|
| - *
|
| - * @description:
|
| - * A macro that returns true whenever a face object contains some
|
| - * embedded bitmaps. See the `available_sizes' field of the
|
| - * @FT_FaceRec structure.
|
| - *
|
| - */
|
| -#define FT_HAS_FIXED_SIZES( face ) \
|
| - ( face->face_flags & FT_FACE_FLAG_FIXED_SIZES )
|
| -
|
| -
|
| - /*************************************************************************
|
| - *
|
| - * @macro:
|
| - * FT_HAS_FAST_GLYPHS( face )
|
| - *
|
| - * @description:
|
| - * Deprecated.
|
| - *
|
| - */
|
| -#define FT_HAS_FAST_GLYPHS( face ) 0
|
| -
|
| -
|
| - /*************************************************************************
|
| - *
|
| - * @macro:
|
| - * FT_HAS_GLYPH_NAMES( face )
|
| - *
|
| - * @description:
|
| - * A macro that returns true whenever a face object contains some glyph
|
| - * names that can be accessed through @FT_Get_Glyph_Name.
|
| - *
|
| - */
|
| -#define FT_HAS_GLYPH_NAMES( face ) \
|
| - ( face->face_flags & FT_FACE_FLAG_GLYPH_NAMES )
|
| -
|
| -
|
| - /*************************************************************************
|
| - *
|
| - * @macro:
|
| - * FT_HAS_MULTIPLE_MASTERS( face )
|
| - *
|
| - * @description:
|
| - * A macro that returns true whenever a face object contains some
|
| - * multiple masters. The functions provided by @FT_MULTIPLE_MASTERS_H
|
| - * are then available to choose the exact design you want.
|
| - *
|
| - */
|
| -#define FT_HAS_MULTIPLE_MASTERS( face ) \
|
| - ( face->face_flags & FT_FACE_FLAG_MULTIPLE_MASTERS )
|
| -
|
| -
|
| - /*************************************************************************
|
| - *
|
| - * @macro:
|
| - * FT_IS_CID_KEYED( face )
|
| - *
|
| - * @description:
|
| - * A macro that returns true whenever a face object contains a CID-keyed
|
| - * font. See the discussion of @FT_FACE_FLAG_CID_KEYED for more
|
| - * details.
|
| - *
|
| - * If this macro is true, all functions defined in @FT_CID_H are
|
| - * available.
|
| - *
|
| - */
|
| -#define FT_IS_CID_KEYED( face ) \
|
| - ( face->face_flags & FT_FACE_FLAG_CID_KEYED )
|
| -
|
| -
|
| - /*************************************************************************
|
| - *
|
| - * @macro:
|
| - * FT_IS_TRICKY( face )
|
| - *
|
| - * @description:
|
| - * A macro that returns true whenever a face represents a `tricky' font.
|
| - * See the discussion of @FT_FACE_FLAG_TRICKY for more details.
|
| - *
|
| - */
|
| -#define FT_IS_TRICKY( face ) \
|
| - ( face->face_flags & FT_FACE_FLAG_TRICKY )
|
| -
|
| -
|
| - /*************************************************************************
|
| - *
|
| - * @macro:
|
| - * FT_HAS_COLOR( face )
|
| - *
|
| - * @description:
|
| - * A macro that returns true whenever a face object contains
|
| - * tables for color glyphs.
|
| - *
|
| - */
|
| -#define FT_HAS_COLOR( face ) \
|
| - ( face->face_flags & FT_FACE_FLAG_COLOR )
|
| -
|
| -
|
| - /*************************************************************************/
|
| - /* */
|
| - /* <Const> */
|
| - /* FT_STYLE_FLAG_XXX */
|
| - /* */
|
| - /* <Description> */
|
| - /* A list of bit-flags used to indicate the style of a given face. */
|
| - /* These are used in the `style_flags' field of @FT_FaceRec. */
|
| - /* */
|
| - /* <Values> */
|
| - /* FT_STYLE_FLAG_ITALIC :: */
|
| - /* Indicates that a given face style is italic or oblique. */
|
| - /* */
|
| - /* FT_STYLE_FLAG_BOLD :: */
|
| - /* Indicates that a given face is bold. */
|
| - /* */
|
| - /* <Note> */
|
| - /* The style information as provided by FreeType is very basic. More */
|
| - /* details are beyond the scope and should be done on a higher level */
|
| - /* (for example, by analyzing various fields of the `OS/2' table in */
|
| - /* SFNT based fonts). */
|
| - /* */
|
| -#define FT_STYLE_FLAG_ITALIC ( 1 << 0 )
|
| -#define FT_STYLE_FLAG_BOLD ( 1 << 1 )
|
| -
|
| -
|
| - /*************************************************************************/
|
| - /* */
|
| - /* <Type> */
|
| - /* FT_Size_Internal */
|
| - /* */
|
| - /* <Description> */
|
| - /* An opaque handle to an `FT_Size_InternalRec' structure, used to */
|
| - /* model private data of a given @FT_Size object. */
|
| - /* */
|
| - typedef struct FT_Size_InternalRec_* FT_Size_Internal;
|
| -
|
| -
|
| - /*************************************************************************/
|
| - /* */
|
| - /* <Struct> */
|
| - /* FT_Size_Metrics */
|
| - /* */
|
| - /* <Description> */
|
| - /* The size metrics structure gives the metrics of a size object. */
|
| - /* */
|
| - /* <Fields> */
|
| - /* x_ppem :: The width of the scaled EM square in pixels, hence */
|
| - /* the term `ppem' (pixels per EM). It is also */
|
| - /* referred to as `nominal width'. */
|
| - /* */
|
| - /* y_ppem :: The height of the scaled EM square in pixels, */
|
| - /* hence the term `ppem' (pixels per EM). It is also */
|
| - /* referred to as `nominal height'. */
|
| - /* */
|
| - /* x_scale :: A 16.16 fractional scaling value used to convert */
|
| - /* horizontal metrics from font units to 26.6 */
|
| - /* fractional pixels. Only relevant for scalable */
|
| - /* font formats. */
|
| - /* */
|
| - /* y_scale :: A 16.16 fractional scaling value used to convert */
|
| - /* vertical metrics from font units to 26.6 */
|
| - /* fractional pixels. Only relevant for scalable */
|
| - /* font formats. */
|
| - /* */
|
| - /* ascender :: The ascender in 26.6 fractional pixels. See */
|
| - /* @FT_FaceRec for the details. */
|
| - /* */
|
| - /* descender :: The descender in 26.6 fractional pixels. See */
|
| - /* @FT_FaceRec for the details. */
|
| - /* */
|
| - /* height :: The height in 26.6 fractional pixels. See */
|
| - /* @FT_FaceRec for the details. */
|
| - /* */
|
| - /* max_advance :: The maximum advance width in 26.6 fractional */
|
| - /* pixels. See @FT_FaceRec for the details. */
|
| - /* */
|
| - /* <Note> */
|
| - /* The scaling values, if relevant, are determined first during a */
|
| - /* size changing operation. The remaining fields are then set by the */
|
| - /* driver. For scalable formats, they are usually set to scaled */
|
| - /* values of the corresponding fields in @FT_FaceRec. */
|
| - /* */
|
| - /* Note that due to glyph hinting, these values might not be exact */
|
| - /* for certain fonts. Thus they must be treated as unreliable */
|
| - /* with an error margin of at least one pixel! */
|
| - /* */
|
| - /* Indeed, the only way to get the exact metrics is to render _all_ */
|
| - /* glyphs. As this would be a definite performance hit, it is up to */
|
| - /* client applications to perform such computations. */
|
| - /* */
|
| - /* The FT_Size_Metrics structure is valid for bitmap fonts also. */
|
| - /* */
|
| - typedef struct FT_Size_Metrics_
|
| - {
|
| - FT_UShort x_ppem; /* horizontal pixels per EM */
|
| - FT_UShort y_ppem; /* vertical pixels per EM */
|
| -
|
| - FT_Fixed x_scale; /* scaling values used to convert font */
|
| - FT_Fixed y_scale; /* units to 26.6 fractional pixels */
|
| -
|
| - FT_Pos ascender; /* ascender in 26.6 frac. pixels */
|
| - FT_Pos descender; /* descender in 26.6 frac. pixels */
|
| - FT_Pos height; /* text height in 26.6 frac. pixels */
|
| - FT_Pos max_advance; /* max horizontal advance, in 26.6 pixels */
|
| -
|
| - } FT_Size_Metrics;
|
| -
|
| -
|
| - /*************************************************************************/
|
| - /* */
|
| - /* <Struct> */
|
| - /* FT_SizeRec */
|
| - /* */
|
| - /* <Description> */
|
| - /* FreeType root size class structure. A size object models a face */
|
| - /* object at a given size. */
|
| - /* */
|
| - /* <Fields> */
|
| - /* face :: Handle to the parent face object. */
|
| - /* */
|
| - /* generic :: A typeless pointer, unused by the FreeType library or */
|
| - /* any of its drivers. It can be used by client */
|
| - /* applications to link their own data to each size */
|
| - /* object. */
|
| - /* */
|
| - /* metrics :: Metrics for this size object. This field is read-only. */
|
| - /* */
|
| - typedef struct FT_SizeRec_
|
| - {
|
| - FT_Face face; /* parent face object */
|
| - FT_Generic generic; /* generic pointer for client uses */
|
| - FT_Size_Metrics metrics; /* size metrics */
|
| - FT_Size_Internal internal;
|
| -
|
| - } FT_SizeRec;
|
| -
|
| -
|
| - /*************************************************************************/
|
| - /* */
|
| - /* <Struct> */
|
| - /* FT_SubGlyph */
|
| - /* */
|
| - /* <Description> */
|
| - /* The subglyph structure is an internal object used to describe */
|
| - /* subglyphs (for example, in the case of composites). */
|
| - /* */
|
| - /* <Note> */
|
| - /* The subglyph implementation is not part of the high-level API, */
|
| - /* hence the forward structure declaration. */
|
| - /* */
|
| - /* You can however retrieve subglyph information with */
|
| - /* @FT_Get_SubGlyph_Info. */
|
| - /* */
|
| - typedef struct FT_SubGlyphRec_* FT_SubGlyph;
|
| -
|
| -
|
| - /*************************************************************************/
|
| - /* */
|
| - /* <Type> */
|
| - /* FT_Slot_Internal */
|
| - /* */
|
| - /* <Description> */
|
| - /* An opaque handle to an `FT_Slot_InternalRec' structure, used to */
|
| - /* model private data of a given @FT_GlyphSlot object. */
|
| - /* */
|
| - typedef struct FT_Slot_InternalRec_* FT_Slot_Internal;
|
| -
|
| -
|
| - /*************************************************************************/
|
| - /* */
|
| - /* <Struct> */
|
| - /* FT_GlyphSlotRec */
|
| - /* */
|
| - /* <Description> */
|
| - /* FreeType root glyph slot class structure. A glyph slot is a */
|
| - /* container where individual glyphs can be loaded, be they in */
|
| - /* outline or bitmap format. */
|
| - /* */
|
| - /* <Fields> */
|
| - /* library :: A handle to the FreeType library instance */
|
| - /* this slot belongs to. */
|
| - /* */
|
| - /* face :: A handle to the parent face object. */
|
| - /* */
|
| - /* next :: In some cases (like some font tools), several */
|
| - /* glyph slots per face object can be a good */
|
| - /* thing. As this is rare, the glyph slots are */
|
| - /* listed through a direct, single-linked list */
|
| - /* using its `next' field. */
|
| - /* */
|
| - /* generic :: A typeless pointer unused by the FreeType */
|
| - /* library or any of its drivers. It can be */
|
| - /* used by client applications to link their own */
|
| - /* data to each glyph slot object. */
|
| - /* */
|
| - /* metrics :: The metrics of the last loaded glyph in the */
|
| - /* slot. The returned values depend on the last */
|
| - /* load flags (see the @FT_Load_Glyph API */
|
| - /* function) and can be expressed either in 26.6 */
|
| - /* fractional pixels or font units. */
|
| - /* */
|
| - /* Note that even when the glyph image is */
|
| - /* transformed, the metrics are not. */
|
| - /* */
|
| - /* linearHoriAdvance :: The advance width of the unhinted glyph. */
|
| - /* Its value is expressed in 16.16 fractional */
|
| - /* pixels, unless @FT_LOAD_LINEAR_DESIGN is set */
|
| - /* when loading the glyph. This field can be */
|
| - /* important to perform correct WYSIWYG layout. */
|
| - /* Only relevant for outline glyphs. */
|
| - /* */
|
| - /* linearVertAdvance :: The advance height of the unhinted glyph. */
|
| - /* Its value is expressed in 16.16 fractional */
|
| - /* pixels, unless @FT_LOAD_LINEAR_DESIGN is set */
|
| - /* when loading the glyph. This field can be */
|
| - /* important to perform correct WYSIWYG layout. */
|
| - /* Only relevant for outline glyphs. */
|
| - /* */
|
| - /* advance :: This shorthand is, depending on */
|
| - /* @FT_LOAD_IGNORE_TRANSFORM, the transformed */
|
| - /* (hinted) advance width for the glyph, in 26.6 */
|
| - /* fractional pixel format. As specified with */
|
| - /* @FT_LOAD_VERTICAL_LAYOUT, it uses either the */
|
| - /* `horiAdvance' or the `vertAdvance' value of */
|
| - /* `metrics' field. */
|
| - /* */
|
| - /* format :: This field indicates the format of the image */
|
| - /* contained in the glyph slot. Typically */
|
| - /* @FT_GLYPH_FORMAT_BITMAP, */
|
| - /* @FT_GLYPH_FORMAT_OUTLINE, or */
|
| - /* @FT_GLYPH_FORMAT_COMPOSITE, but others are */
|
| - /* possible. */
|
| - /* */
|
| - /* bitmap :: This field is used as a bitmap descriptor */
|
| - /* when the slot format is */
|
| - /* @FT_GLYPH_FORMAT_BITMAP. Note that the */
|
| - /* address and content of the bitmap buffer can */
|
| - /* change between calls of @FT_Load_Glyph and a */
|
| - /* few other functions. */
|
| - /* */
|
| - /* bitmap_left :: The bitmap's left bearing expressed in */
|
| - /* integer pixels. Only valid if the format is */
|
| - /* @FT_GLYPH_FORMAT_BITMAP, this is, if the */
|
| - /* glyph slot contains a bitmap. */
|
| - /* */
|
| - /* bitmap_top :: The bitmap's top bearing expressed in integer */
|
| - /* pixels. Remember that this is the distance */
|
| - /* from the baseline to the top-most glyph */
|
| - /* scanline, upwards y~coordinates being */
|
| - /* *positive*. */
|
| - /* */
|
| - /* outline :: The outline descriptor for the current glyph */
|
| - /* image if its format is */
|
| - /* @FT_GLYPH_FORMAT_OUTLINE. Once a glyph is */
|
| - /* loaded, `outline' can be transformed, */
|
| - /* distorted, embolded, etc. However, it must */
|
| - /* not be freed. */
|
| - /* */
|
| - /* num_subglyphs :: The number of subglyphs in a composite glyph. */
|
| - /* This field is only valid for the composite */
|
| - /* glyph format that should normally only be */
|
| - /* loaded with the @FT_LOAD_NO_RECURSE flag. */
|
| - /* */
|
| - /* subglyphs :: An array of subglyph descriptors for */
|
| - /* composite glyphs. There are `num_subglyphs' */
|
| - /* elements in there. Currently internal to */
|
| - /* FreeType. */
|
| - /* */
|
| - /* control_data :: Certain font drivers can also return the */
|
| - /* control data for a given glyph image (e.g. */
|
| - /* TrueType bytecode, Type~1 charstrings, etc.). */
|
| - /* This field is a pointer to such data. */
|
| - /* */
|
| - /* control_len :: This is the length in bytes of the control */
|
| - /* data. */
|
| - /* */
|
| - /* other :: Really wicked formats can use this pointer to */
|
| - /* present their own glyph image to client */
|
| - /* applications. Note that the application */
|
| - /* needs to know about the image format. */
|
| - /* */
|
| - /* lsb_delta :: The difference between hinted and unhinted */
|
| - /* left side bearing while autohinting is */
|
| - /* active. Zero otherwise. */
|
| - /* */
|
| - /* rsb_delta :: The difference between hinted and unhinted */
|
| - /* right side bearing while autohinting is */
|
| - /* active. Zero otherwise. */
|
| - /* */
|
| - /* <Note> */
|
| - /* If @FT_Load_Glyph is called with default flags (see */
|
| - /* @FT_LOAD_DEFAULT) the glyph image is loaded in the glyph slot in */
|
| - /* its native format (e.g., an outline glyph for TrueType and Type~1 */
|
| - /* formats). */
|
| - /* */
|
| - /* This image can later be converted into a bitmap by calling */
|
| - /* @FT_Render_Glyph. This function finds the current renderer for */
|
| - /* the native image's format, then invokes it. */
|
| - /* */
|
| - /* The renderer is in charge of transforming the native image through */
|
| - /* the slot's face transformation fields, then converting it into a */
|
| - /* bitmap that is returned in `slot->bitmap'. */
|
| - /* */
|
| - /* Note that `slot->bitmap_left' and `slot->bitmap_top' are also used */
|
| - /* to specify the position of the bitmap relative to the current pen */
|
| - /* position (e.g., coordinates (0,0) on the baseline). Of course, */
|
| - /* `slot->format' is also changed to @FT_GLYPH_FORMAT_BITMAP. */
|
| - /* */
|
| - /* <Note> */
|
| - /* Here a small pseudo code fragment that shows how to use */
|
| - /* `lsb_delta' and `rsb_delta': */
|
| - /* */
|
| - /* { */
|
| - /* FT_Pos origin_x = 0; */
|
| - /* FT_Pos prev_rsb_delta = 0; */
|
| - /* */
|
| - /* */
|
| - /* for all glyphs do */
|
| - /* <compute kern between current and previous glyph and add it to */
|
| - /* `origin_x'> */
|
| - /* */
|
| - /* <load glyph with `FT_Load_Glyph'> */
|
| - /* */
|
| - /* if ( prev_rsb_delta - face->glyph->lsb_delta >= 32 ) */
|
| - /* origin_x -= 64; */
|
| - /* else if ( prev_rsb_delta - face->glyph->lsb_delta < -32 ) */
|
| - /* origin_x += 64; */
|
| - /* */
|
| - /* prev_rsb_delta = face->glyph->rsb_delta; */
|
| - /* */
|
| - /* <save glyph image, or render glyph, or ...> */
|
| - /* */
|
| - /* origin_x += face->glyph->advance.x; */
|
| - /* endfor */
|
| - /* } */
|
| - /* */
|
| - typedef struct FT_GlyphSlotRec_
|
| - {
|
| - FT_Library library;
|
| - FT_Face face;
|
| - FT_GlyphSlot next;
|
| - FT_UInt reserved; /* retained for binary compatibility */
|
| - FT_Generic generic;
|
| -
|
| - FT_Glyph_Metrics metrics;
|
| - FT_Fixed linearHoriAdvance;
|
| - FT_Fixed linearVertAdvance;
|
| - FT_Vector advance;
|
| -
|
| - FT_Glyph_Format format;
|
| -
|
| - FT_Bitmap bitmap;
|
| - FT_Int bitmap_left;
|
| - FT_Int bitmap_top;
|
| -
|
| - FT_Outline outline;
|
| -
|
| - FT_UInt num_subglyphs;
|
| - FT_SubGlyph subglyphs;
|
| -
|
| - void* control_data;
|
| - long control_len;
|
| -
|
| - FT_Pos lsb_delta;
|
| - FT_Pos rsb_delta;
|
| -
|
| - void* other;
|
| -
|
| - FT_Slot_Internal internal;
|
| -
|
| - } FT_GlyphSlotRec;
|
| -
|
| -
|
| - /*************************************************************************/
|
| - /*************************************************************************/
|
| - /* */
|
| - /* F U N C T I O N S */
|
| - /* */
|
| - /*************************************************************************/
|
| - /*************************************************************************/
|
| -
|
| -
|
| - /*************************************************************************/
|
| - /* */
|
| - /* <Function> */
|
| - /* FT_Init_FreeType */
|
| - /* */
|
| - /* <Description> */
|
| - /* Initialize a new FreeType library object. The set of modules */
|
| - /* that are registered by this function is determined at build time. */
|
| - /* */
|
| - /* <Output> */
|
| - /* alibrary :: A handle to a new library object. */
|
| - /* */
|
| - /* <Return> */
|
| - /* FreeType error code. 0~means success. */
|
| - /* */
|
| - /* <Note> */
|
| - /* In case you want to provide your own memory allocating routines, */
|
| - /* use @FT_New_Library instead, followed by a call to */
|
| - /* @FT_Add_Default_Modules (or a series of calls to @FT_Add_Module). */
|
| - /* */
|
| - /* For multi-threading applications each thread should have its own */
|
| - /* FT_Library object. */
|
| - /* */
|
| - /* If you need reference-counting (cf. @FT_Reference_Library), use */
|
| - /* @FT_New_Library and @FT_Done_Library. */
|
| - /* */
|
| - FT_EXPORT( FT_Error )
|
| - FT_Init_FreeType( FT_Library *alibrary );
|
| -
|
| -
|
| - /*************************************************************************/
|
| - /* */
|
| - /* <Function> */
|
| - /* FT_Done_FreeType */
|
| - /* */
|
| - /* <Description> */
|
| - /* Destroy a given FreeType library object and all of its children, */
|
| - /* including resources, drivers, faces, sizes, etc. */
|
| - /* */
|
| - /* <Input> */
|
| - /* library :: A handle to the target library object. */
|
| - /* */
|
| - /* <Return> */
|
| - /* FreeType error code. 0~means success. */
|
| - /* */
|
| - FT_EXPORT( FT_Error )
|
| - FT_Done_FreeType( FT_Library library );
|
| -
|
| -
|
| - /*************************************************************************/
|
| - /* */
|
| - /* <Enum> */
|
| - /* FT_OPEN_XXX */
|
| - /* */
|
| - /* <Description> */
|
| - /* A list of bit-field constants used within the `flags' field of the */
|
| - /* @FT_Open_Args structure. */
|
| - /* */
|
| - /* <Values> */
|
| - /* FT_OPEN_MEMORY :: This is a memory-based stream. */
|
| - /* */
|
| - /* FT_OPEN_STREAM :: Copy the stream from the `stream' field. */
|
| - /* */
|
| - /* FT_OPEN_PATHNAME :: Create a new input stream from a C~path */
|
| - /* name. */
|
| - /* */
|
| - /* FT_OPEN_DRIVER :: Use the `driver' field. */
|
| - /* */
|
| - /* FT_OPEN_PARAMS :: Use the `num_params' and `params' fields. */
|
| - /* */
|
| - /* <Note> */
|
| - /* The `FT_OPEN_MEMORY', `FT_OPEN_STREAM', and `FT_OPEN_PATHNAME' */
|
| - /* flags are mutually exclusive. */
|
| - /* */
|
| -#define FT_OPEN_MEMORY 0x1
|
| -#define FT_OPEN_STREAM 0x2
|
| -#define FT_OPEN_PATHNAME 0x4
|
| -#define FT_OPEN_DRIVER 0x8
|
| -#define FT_OPEN_PARAMS 0x10
|
| -
|
| -
|
| - /* these constants are deprecated; use the corresponding `FT_OPEN_XXX' */
|
| - /* values instead */
|
| -#define ft_open_memory FT_OPEN_MEMORY
|
| -#define ft_open_stream FT_OPEN_STREAM
|
| -#define ft_open_pathname FT_OPEN_PATHNAME
|
| -#define ft_open_driver FT_OPEN_DRIVER
|
| -#define ft_open_params FT_OPEN_PARAMS
|
| -
|
| -
|
| - /*************************************************************************/
|
| - /* */
|
| - /* <Struct> */
|
| - /* FT_Parameter */
|
| - /* */
|
| - /* <Description> */
|
| - /* A simple structure used to pass more or less generic parameters to */
|
| - /* @FT_Open_Face. */
|
| - /* */
|
| - /* <Fields> */
|
| - /* tag :: A four-byte identification tag. */
|
| - /* */
|
| - /* data :: A pointer to the parameter data. */
|
| - /* */
|
| - /* <Note> */
|
| - /* The ID and function of parameters are driver-specific. See the */
|
| - /* various FT_PARAM_TAG_XXX flags for more information. */
|
| - /* */
|
| - typedef struct FT_Parameter_
|
| - {
|
| - FT_ULong tag;
|
| - FT_Pointer data;
|
| -
|
| - } FT_Parameter;
|
| -
|
| -
|
| - /*************************************************************************/
|
| - /* */
|
| - /* <Struct> */
|
| - /* FT_Open_Args */
|
| - /* */
|
| - /* <Description> */
|
| - /* A structure used to indicate how to open a new font file or */
|
| - /* stream. A pointer to such a structure can be used as a parameter */
|
| - /* for the functions @FT_Open_Face and @FT_Attach_Stream. */
|
| - /* */
|
| - /* <Fields> */
|
| - /* flags :: A set of bit flags indicating how to use the */
|
| - /* structure. */
|
| - /* */
|
| - /* memory_base :: The first byte of the file in memory. */
|
| - /* */
|
| - /* memory_size :: The size in bytes of the file in memory. */
|
| - /* */
|
| - /* pathname :: A pointer to an 8-bit file pathname. */
|
| - /* */
|
| - /* stream :: A handle to a source stream object. */
|
| - /* */
|
| - /* driver :: This field is exclusively used by @FT_Open_Face; */
|
| - /* it simply specifies the font driver to use to open */
|
| - /* the face. If set to~0, FreeType tries to load the */
|
| - /* face with each one of the drivers in its list. */
|
| - /* */
|
| - /* num_params :: The number of extra parameters. */
|
| - /* */
|
| - /* params :: Extra parameters passed to the font driver when */
|
| - /* opening a new face. */
|
| - /* */
|
| - /* <Note> */
|
| - /* The stream type is determined by the contents of `flags' that */
|
| - /* are tested in the following order by @FT_Open_Face: */
|
| - /* */
|
| - /* If the @FT_OPEN_MEMORY bit is set, assume that this is a */
|
| - /* memory file of `memory_size' bytes, located at `memory_address'. */
|
| - /* The data are are not copied, and the client is responsible for */
|
| - /* releasing and destroying them _after_ the corresponding call to */
|
| - /* @FT_Done_Face. */
|
| - /* */
|
| - /* Otherwise, if the @FT_OPEN_STREAM bit is set, assume that a */
|
| - /* custom input stream `stream' is used. */
|
| - /* */
|
| - /* Otherwise, if the @FT_OPEN_PATHNAME bit is set, assume that this */
|
| - /* is a normal file and use `pathname' to open it. */
|
| - /* */
|
| - /* If the @FT_OPEN_DRIVER bit is set, @FT_Open_Face only tries to */
|
| - /* open the file with the driver whose handler is in `driver'. */
|
| - /* */
|
| - /* If the @FT_OPEN_PARAMS bit is set, the parameters given by */
|
| - /* `num_params' and `params' is used. They are ignored otherwise. */
|
| - /* */
|
| - /* Ideally, both the `pathname' and `params' fields should be tagged */
|
| - /* as `const'; this is missing for API backwards compatibility. In */
|
| - /* other words, applications should treat them as read-only. */
|
| - /* */
|
| - typedef struct FT_Open_Args_
|
| - {
|
| - FT_UInt flags;
|
| - const FT_Byte* memory_base;
|
| - FT_Long memory_size;
|
| - FT_String* pathname;
|
| - FT_Stream stream;
|
| - FT_Module driver;
|
| - FT_Int num_params;
|
| - FT_Parameter* params;
|
| -
|
| - } FT_Open_Args;
|
| -
|
| -
|
| - /*************************************************************************/
|
| - /* */
|
| - /* <Function> */
|
| - /* FT_New_Face */
|
| - /* */
|
| - /* <Description> */
|
| - /* This function calls @FT_Open_Face to open a font by its pathname. */
|
| - /* */
|
| - /* <InOut> */
|
| - /* library :: A handle to the library resource. */
|
| - /* */
|
| - /* <Input> */
|
| - /* pathname :: A path to the font file. */
|
| - /* */
|
| - /* face_index :: The index of the face within the font. The first */
|
| - /* face has index~0. */
|
| - /* */
|
| - /* <Output> */
|
| - /* aface :: A handle to a new face object. If `face_index' is */
|
| - /* greater than or equal to zero, it must be non-NULL. */
|
| - /* See @FT_Open_Face for more details. */
|
| - /* */
|
| - /* <Return> */
|
| - /* FreeType error code. 0~means success. */
|
| - /* */
|
| - /* <Note> */
|
| - /* Use @FT_Done_Face to destroy the created @FT_Face object (along */
|
| - /* with its slot and sizes). */
|
| - /* */
|
| - FT_EXPORT( FT_Error )
|
| - FT_New_Face( FT_Library library,
|
| - const char* filepathname,
|
| - FT_Long face_index,
|
| - FT_Face *aface );
|
| -
|
| -
|
| - /*************************************************************************/
|
| - /* */
|
| - /* <Function> */
|
| - /* FT_New_Memory_Face */
|
| - /* */
|
| - /* <Description> */
|
| - /* This function calls @FT_Open_Face to open a font that has been */
|
| - /* loaded into memory. */
|
| - /* */
|
| - /* <InOut> */
|
| - /* library :: A handle to the library resource. */
|
| - /* */
|
| - /* <Input> */
|
| - /* file_base :: A pointer to the beginning of the font data. */
|
| - /* */
|
| - /* file_size :: The size of the memory chunk used by the font data. */
|
| - /* */
|
| - /* face_index :: The index of the face within the font. The first */
|
| - /* face has index~0. */
|
| - /* */
|
| - /* <Output> */
|
| - /* aface :: A handle to a new face object. If `face_index' is */
|
| - /* greater than or equal to zero, it must be non-NULL. */
|
| - /* See @FT_Open_Face for more details. */
|
| - /* */
|
| - /* <Return> */
|
| - /* FreeType error code. 0~means success. */
|
| - /* */
|
| - /* <Note> */
|
| - /* You must not deallocate the memory before calling @FT_Done_Face. */
|
| - /* */
|
| - FT_EXPORT( FT_Error )
|
| - FT_New_Memory_Face( FT_Library library,
|
| - const FT_Byte* file_base,
|
| - FT_Long file_size,
|
| - FT_Long face_index,
|
| - FT_Face *aface );
|
| -
|
| -
|
| - /*************************************************************************/
|
| - /* */
|
| - /* <Function> */
|
| - /* FT_Open_Face */
|
| - /* */
|
| - /* <Description> */
|
| - /* Create a face object from a given resource described by */
|
| - /* @FT_Open_Args. */
|
| - /* */
|
| - /* <InOut> */
|
| - /* library :: A handle to the library resource. */
|
| - /* */
|
| - /* <Input> */
|
| - /* args :: A pointer to an `FT_Open_Args' structure that must */
|
| - /* be filled by the caller. */
|
| - /* */
|
| - /* face_index :: The index of the face within the font. The first */
|
| - /* face has index~0. */
|
| - /* */
|
| - /* <Output> */
|
| - /* aface :: A handle to a new face object. If `face_index' is */
|
| - /* greater than or equal to zero, it must be non-NULL. */
|
| - /* See note below. */
|
| - /* */
|
| - /* <Return> */
|
| - /* FreeType error code. 0~means success. */
|
| - /* */
|
| - /* <Note> */
|
| - /* Unlike FreeType 1.x, this function automatically creates a glyph */
|
| - /* slot for the face object that can be accessed directly through */
|
| - /* `face->glyph'. */
|
| - /* */
|
| - /* FT_Open_Face can be used to quickly check whether the font */
|
| - /* format of a given font resource is supported by FreeType. If the */
|
| - /* `face_index' field is negative, the function's return value is~0 */
|
| - /* if the font format is recognized, or non-zero otherwise; */
|
| - /* the function returns a more or less empty face handle in `*aface' */
|
| - /* (if `aface' isn't NULL). The only useful field in this special */
|
| - /* case is `face->num_faces' that gives the number of faces within */
|
| - /* the font file. After examination, the returned @FT_Face structure */
|
| - /* should be deallocated with a call to @FT_Done_Face. */
|
| - /* */
|
| - /* Each new face object created with this function also owns a */
|
| - /* default @FT_Size object, accessible as `face->size'. */
|
| - /* */
|
| - /* One @FT_Library instance can have multiple face objects, this is, */
|
| - /* @FT_Open_Face and its siblings can be called multiple times using */
|
| - /* the same `library' argument. */
|
| - /* */
|
| - /* See the discussion of reference counters in the description of */
|
| - /* @FT_Reference_Face. */
|
| - /* */
|
| - FT_EXPORT( FT_Error )
|
| - FT_Open_Face( FT_Library library,
|
| - const FT_Open_Args* args,
|
| - FT_Long face_index,
|
| - FT_Face *aface );
|
| -
|
| -
|
| - /*************************************************************************/
|
| - /* */
|
| - /* <Function> */
|
| - /* FT_Attach_File */
|
| - /* */
|
| - /* <Description> */
|
| - /* This function calls @FT_Attach_Stream to attach a file. */
|
| - /* */
|
| - /* <InOut> */
|
| - /* face :: The target face object. */
|
| - /* */
|
| - /* <Input> */
|
| - /* filepathname :: The pathname. */
|
| - /* */
|
| - /* <Return> */
|
| - /* FreeType error code. 0~means success. */
|
| - /* */
|
| - FT_EXPORT( FT_Error )
|
| - FT_Attach_File( FT_Face face,
|
| - const char* filepathname );
|
| -
|
| -
|
| - /*************************************************************************/
|
| - /* */
|
| - /* <Function> */
|
| - /* FT_Attach_Stream */
|
| - /* */
|
| - /* <Description> */
|
| - /* `Attach' data to a face object. Normally, this is used to read */
|
| - /* additional information for the face object. For example, you can */
|
| - /* attach an AFM file that comes with a Type~1 font to get the */
|
| - /* kerning values and other metrics. */
|
| - /* */
|
| - /* <InOut> */
|
| - /* face :: The target face object. */
|
| - /* */
|
| - /* <Input> */
|
| - /* parameters :: A pointer to @FT_Open_Args that must be filled by */
|
| - /* the caller. */
|
| - /* */
|
| - /* <Return> */
|
| - /* FreeType error code. 0~means success. */
|
| - /* */
|
| - /* <Note> */
|
| - /* The meaning of the `attach' (i.e., what really happens when the */
|
| - /* new file is read) is not fixed by FreeType itself. It really */
|
| - /* depends on the font format (and thus the font driver). */
|
| - /* */
|
| - /* Client applications are expected to know what they are doing */
|
| - /* when invoking this function. Most drivers simply do not implement */
|
| - /* file attachments. */
|
| - /* */
|
| - FT_EXPORT( FT_Error )
|
| - FT_Attach_Stream( FT_Face face,
|
| - FT_Open_Args* parameters );
|
| -
|
| -
|
| - /*************************************************************************/
|
| - /* */
|
| - /* <Function> */
|
| - /* FT_Reference_Face */
|
| - /* */
|
| - /* <Description> */
|
| - /* A counter gets initialized to~1 at the time an @FT_Face structure */
|
| - /* is created. This function increments the counter. @FT_Done_Face */
|
| - /* then only destroys a face if the counter is~1, otherwise it simply */
|
| - /* decrements the counter. */
|
| - /* */
|
| - /* This function helps in managing life-cycles of structures that */
|
| - /* reference @FT_Face objects. */
|
| - /* */
|
| - /* <Input> */
|
| - /* face :: A handle to a target face object. */
|
| - /* */
|
| - /* <Return> */
|
| - /* FreeType error code. 0~means success. */
|
| - /* */
|
| - /* <Since> */
|
| - /* 2.4.2 */
|
| - /* */
|
| - FT_EXPORT( FT_Error )
|
| - FT_Reference_Face( FT_Face face );
|
| -
|
| -
|
| - /*************************************************************************/
|
| - /* */
|
| - /* <Function> */
|
| - /* FT_Done_Face */
|
| - /* */
|
| - /* <Description> */
|
| - /* Discard a given face object, as well as all of its child slots and */
|
| - /* sizes. */
|
| - /* */
|
| - /* <Input> */
|
| - /* face :: A handle to a target face object. */
|
| - /* */
|
| - /* <Return> */
|
| - /* FreeType error code. 0~means success. */
|
| - /* */
|
| - /* <Note> */
|
| - /* See the discussion of reference counters in the description of */
|
| - /* @FT_Reference_Face. */
|
| - /* */
|
| - FT_EXPORT( FT_Error )
|
| - FT_Done_Face( FT_Face face );
|
| -
|
| -
|
| - /*************************************************************************/
|
| - /* */
|
| - /* <Function> */
|
| - /* FT_Select_Size */
|
| - /* */
|
| - /* <Description> */
|
| - /* Select a bitmap strike. */
|
| - /* */
|
| - /* <InOut> */
|
| - /* face :: A handle to a target face object. */
|
| - /* */
|
| - /* <Input> */
|
| - /* strike_index :: The index of the bitmap strike in the */
|
| - /* `available_sizes' field of @FT_FaceRec structure. */
|
| - /* */
|
| - /* <Return> */
|
| - /* FreeType error code. 0~means success. */
|
| - /* */
|
| - FT_EXPORT( FT_Error )
|
| - FT_Select_Size( FT_Face face,
|
| - FT_Int strike_index );
|
| -
|
| -
|
| - /*************************************************************************/
|
| - /* */
|
| - /* <Enum> */
|
| - /* FT_Size_Request_Type */
|
| - /* */
|
| - /* <Description> */
|
| - /* An enumeration type that lists the supported size request types. */
|
| - /* */
|
| - /* <Values> */
|
| - /* FT_SIZE_REQUEST_TYPE_NOMINAL :: */
|
| - /* The nominal size. The `units_per_EM' field of @FT_FaceRec is */
|
| - /* used to determine both scaling values. */
|
| - /* */
|
| - /* FT_SIZE_REQUEST_TYPE_REAL_DIM :: */
|
| - /* The real dimension. The sum of the the `ascender' and (minus */
|
| - /* of) the `descender' fields of @FT_FaceRec are used to determine */
|
| - /* both scaling values. */
|
| - /* */
|
| - /* FT_SIZE_REQUEST_TYPE_BBOX :: */
|
| - /* The font bounding box. The width and height of the `bbox' field */
|
| - /* of @FT_FaceRec are used to determine the horizontal and vertical */
|
| - /* scaling value, respectively. */
|
| - /* */
|
| - /* FT_SIZE_REQUEST_TYPE_CELL :: */
|
| - /* The `max_advance_width' field of @FT_FaceRec is used to */
|
| - /* determine the horizontal scaling value; the vertical scaling */
|
| - /* value is determined the same way as */
|
| - /* @FT_SIZE_REQUEST_TYPE_REAL_DIM does. Finally, both scaling */
|
| - /* values are set to the smaller one. This type is useful if you */
|
| - /* want to specify the font size for, say, a window of a given */
|
| - /* dimension and 80x24 cells. */
|
| - /* */
|
| - /* FT_SIZE_REQUEST_TYPE_SCALES :: */
|
| - /* Specify the scaling values directly. */
|
| - /* */
|
| - /* <Note> */
|
| - /* The above descriptions only apply to scalable formats. For bitmap */
|
| - /* formats, the behaviour is up to the driver. */
|
| - /* */
|
| - /* See the note section of @FT_Size_Metrics if you wonder how size */
|
| - /* requesting relates to scaling values. */
|
| - /* */
|
| - typedef enum FT_Size_Request_Type_
|
| - {
|
| - FT_SIZE_REQUEST_TYPE_NOMINAL,
|
| - FT_SIZE_REQUEST_TYPE_REAL_DIM,
|
| - FT_SIZE_REQUEST_TYPE_BBOX,
|
| - FT_SIZE_REQUEST_TYPE_CELL,
|
| - FT_SIZE_REQUEST_TYPE_SCALES,
|
| -
|
| - FT_SIZE_REQUEST_TYPE_MAX
|
| -
|
| - } FT_Size_Request_Type;
|
| -
|
| -
|
| - /*************************************************************************/
|
| - /* */
|
| - /* <Struct> */
|
| - /* FT_Size_RequestRec */
|
| - /* */
|
| - /* <Description> */
|
| - /* A structure used to model a size request. */
|
| - /* */
|
| - /* <Fields> */
|
| - /* type :: See @FT_Size_Request_Type. */
|
| - /* */
|
| - /* width :: The desired width. */
|
| - /* */
|
| - /* height :: The desired height. */
|
| - /* */
|
| - /* horiResolution :: The horizontal resolution. If set to zero, */
|
| - /* `width' is treated as a 26.6 fractional pixel */
|
| - /* value. */
|
| - /* */
|
| - /* vertResolution :: The vertical resolution. If set to zero, */
|
| - /* `height' is treated as a 26.6 fractional pixel */
|
| - /* value. */
|
| - /* */
|
| - /* <Note> */
|
| - /* If `width' is zero, then the horizontal scaling value is set equal */
|
| - /* to the vertical scaling value, and vice versa. */
|
| - /* */
|
| - typedef struct FT_Size_RequestRec_
|
| - {
|
| - FT_Size_Request_Type type;
|
| - FT_Long width;
|
| - FT_Long height;
|
| - FT_UInt horiResolution;
|
| - FT_UInt vertResolution;
|
| -
|
| - } FT_Size_RequestRec;
|
| -
|
| -
|
| - /*************************************************************************/
|
| - /* */
|
| - /* <Struct> */
|
| - /* FT_Size_Request */
|
| - /* */
|
| - /* <Description> */
|
| - /* A handle to a size request structure. */
|
| - /* */
|
| - typedef struct FT_Size_RequestRec_ *FT_Size_Request;
|
| -
|
| -
|
| - /*************************************************************************/
|
| - /* */
|
| - /* <Function> */
|
| - /* FT_Request_Size */
|
| - /* */
|
| - /* <Description> */
|
| - /* Resize the scale of the active @FT_Size object in a face. */
|
| - /* */
|
| - /* <InOut> */
|
| - /* face :: A handle to a target face object. */
|
| - /* */
|
| - /* <Input> */
|
| - /* req :: A pointer to a @FT_Size_RequestRec. */
|
| - /* */
|
| - /* <Return> */
|
| - /* FreeType error code. 0~means success. */
|
| - /* */
|
| - /* <Note> */
|
| - /* Although drivers may select the bitmap strike matching the */
|
| - /* request, you should not rely on this if you intend to select a */
|
| - /* particular bitmap strike. Use @FT_Select_Size instead in that */
|
| - /* case. */
|
| - /* */
|
| - /* The relation between the requested size and the resulting glyph */
|
| - /* size is dependent entirely on how the size is defined in the */
|
| - /* source face. The font designer chooses the final size of each */
|
| - /* glyph relative to this size. For more information refer to */
|
| - /* `http://www.freetype.org/freetype2/docs/glyphs/glyphs-2.html' */
|
| - /* */
|
| - /* Don't use this function if you are using the FreeType cache API. */
|
| - /* */
|
| - FT_EXPORT( FT_Error )
|
| - FT_Request_Size( FT_Face face,
|
| - FT_Size_Request req );
|
| -
|
| -
|
| - /*************************************************************************/
|
| - /* */
|
| - /* <Function> */
|
| - /* FT_Set_Char_Size */
|
| - /* */
|
| - /* <Description> */
|
| - /* This function calls @FT_Request_Size to request the nominal size */
|
| - /* (in points). */
|
| - /* */
|
| - /* <InOut> */
|
| - /* face :: A handle to a target face object. */
|
| - /* */
|
| - /* <Input> */
|
| - /* char_width :: The nominal width, in 26.6 fractional points. */
|
| - /* */
|
| - /* char_height :: The nominal height, in 26.6 fractional points. */
|
| - /* */
|
| - /* horz_resolution :: The horizontal resolution in dpi. */
|
| - /* */
|
| - /* vert_resolution :: The vertical resolution in dpi. */
|
| - /* */
|
| - /* <Return> */
|
| - /* FreeType error code. 0~means success. */
|
| - /* */
|
| - /* <Note> */
|
| - /* If either the character width or height is zero, it is set equal */
|
| - /* to the other value. */
|
| - /* */
|
| - /* If either the horizontal or vertical resolution is zero, it is set */
|
| - /* equal to the other value. */
|
| - /* */
|
| - /* A character width or height smaller than 1pt is set to 1pt; if */
|
| - /* both resolution values are zero, they are set to 72dpi. */
|
| - /* */
|
| - /* Don't use this function if you are using the FreeType cache API. */
|
| - /* */
|
| - FT_EXPORT( FT_Error )
|
| - FT_Set_Char_Size( FT_Face face,
|
| - FT_F26Dot6 char_width,
|
| - FT_F26Dot6 char_height,
|
| - FT_UInt horz_resolution,
|
| - FT_UInt vert_resolution );
|
| -
|
| -
|
| - /*************************************************************************/
|
| - /* */
|
| - /* <Function> */
|
| - /* FT_Set_Pixel_Sizes */
|
| - /* */
|
| - /* <Description> */
|
| - /* This function calls @FT_Request_Size to request the nominal size */
|
| - /* (in pixels). */
|
| - /* */
|
| - /* <InOut> */
|
| - /* face :: A handle to the target face object. */
|
| - /* */
|
| - /* <Input> */
|
| - /* pixel_width :: The nominal width, in pixels. */
|
| - /* */
|
| - /* pixel_height :: The nominal height, in pixels. */
|
| - /* */
|
| - /* <Return> */
|
| - /* FreeType error code. 0~means success. */
|
| - /* */
|
| - /* <Note> */
|
| - /* You should not rely on the resulting glyphs matching, or being */
|
| - /* constrained, to this pixel size. Refer to @FT_Request_Size to */
|
| - /* understand how requested sizes relate to actual sizes. */
|
| - /* */
|
| - /* Don't use this function if you are using the FreeType cache API. */
|
| - /* */
|
| - FT_EXPORT( FT_Error )
|
| - FT_Set_Pixel_Sizes( FT_Face face,
|
| - FT_UInt pixel_width,
|
| - FT_UInt pixel_height );
|
| -
|
| -
|
| - /*************************************************************************/
|
| - /* */
|
| - /* <Function> */
|
| - /* FT_Load_Glyph */
|
| - /* */
|
| - /* <Description> */
|
| - /* A function used to load a single glyph into the glyph slot of a */
|
| - /* face object. */
|
| - /* */
|
| - /* <InOut> */
|
| - /* face :: A handle to the target face object where the glyph */
|
| - /* is loaded. */
|
| - /* */
|
| - /* <Input> */
|
| - /* glyph_index :: The index of the glyph in the font file. For */
|
| - /* CID-keyed fonts (either in PS or in CFF format) */
|
| - /* this argument specifies the CID value. */
|
| - /* */
|
| - /* load_flags :: A flag indicating what to load for this glyph. The */
|
| - /* @FT_LOAD_XXX constants can be used to control the */
|
| - /* glyph loading process (e.g., whether the outline */
|
| - /* should be scaled, whether to load bitmaps or not, */
|
| - /* whether to hint the outline, etc). */
|
| - /* */
|
| - /* <Return> */
|
| - /* FreeType error code. 0~means success. */
|
| - /* */
|
| - /* <Note> */
|
| - /* The loaded glyph may be transformed. See @FT_Set_Transform for */
|
| - /* the details. */
|
| - /* */
|
| - /* For subsetted CID-keyed fonts, `FT_Err_Invalid_Argument' is */
|
| - /* returned for invalid CID values (this is, for CID values that */
|
| - /* don't have a corresponding glyph in the font). See the discussion */
|
| - /* of the @FT_FACE_FLAG_CID_KEYED flag for more details. */
|
| - /* */
|
| - FT_EXPORT( FT_Error )
|
| - FT_Load_Glyph( FT_Face face,
|
| - FT_UInt glyph_index,
|
| - FT_Int32 load_flags );
|
| -
|
| -
|
| - /*************************************************************************/
|
| - /* */
|
| - /* <Function> */
|
| - /* FT_Load_Char */
|
| - /* */
|
| - /* <Description> */
|
| - /* A function used to load a single glyph into the glyph slot of a */
|
| - /* face object, according to its character code. */
|
| - /* */
|
| - /* <InOut> */
|
| - /* face :: A handle to a target face object where the glyph */
|
| - /* is loaded. */
|
| - /* */
|
| - /* <Input> */
|
| - /* char_code :: The glyph's character code, according to the */
|
| - /* current charmap used in the face. */
|
| - /* */
|
| - /* load_flags :: A flag indicating what to load for this glyph. The */
|
| - /* @FT_LOAD_XXX constants can be used to control the */
|
| - /* glyph loading process (e.g., whether the outline */
|
| - /* should be scaled, whether to load bitmaps or not, */
|
| - /* whether to hint the outline, etc). */
|
| - /* */
|
| - /* <Return> */
|
| - /* FreeType error code. 0~means success. */
|
| - /* */
|
| - /* <Note> */
|
| - /* This function simply calls @FT_Get_Char_Index and @FT_Load_Glyph. */
|
| - /* */
|
| - FT_EXPORT( FT_Error )
|
| - FT_Load_Char( FT_Face face,
|
| - FT_ULong char_code,
|
| - FT_Int32 load_flags );
|
| -
|
| -
|
| - /*************************************************************************
|
| - *
|
| - * @enum:
|
| - * FT_LOAD_XXX
|
| - *
|
| - * @description:
|
| - * A list of bit-field constants used with @FT_Load_Glyph to indicate
|
| - * what kind of operations to perform during glyph loading.
|
| - *
|
| - * @values:
|
| - * FT_LOAD_DEFAULT ::
|
| - * Corresponding to~0, this value is used as the default glyph load
|
| - * operation. In this case, the following happens:
|
| - *
|
| - * 1. FreeType looks for a bitmap for the glyph corresponding to the
|
| - * face's current size. If one is found, the function returns.
|
| - * The bitmap data can be accessed from the glyph slot (see note
|
| - * below).
|
| - *
|
| - * 2. If no embedded bitmap is searched or found, FreeType looks for a
|
| - * scalable outline. If one is found, it is loaded from the font
|
| - * file, scaled to device pixels, then `hinted' to the pixel grid
|
| - * in order to optimize it. The outline data can be accessed from
|
| - * the glyph slot (see note below).
|
| - *
|
| - * Note that by default, the glyph loader doesn't render outlines into
|
| - * bitmaps. The following flags are used to modify this default
|
| - * behaviour to more specific and useful cases.
|
| - *
|
| - * FT_LOAD_NO_SCALE ::
|
| - * Don't scale the loaded outline glyph but keep it in font units.
|
| - *
|
| - * This flag implies @FT_LOAD_NO_HINTING and @FT_LOAD_NO_BITMAP, and
|
| - * unsets @FT_LOAD_RENDER.
|
| - *
|
| - * If the font is `tricky' (see @FT_FACE_FLAG_TRICKY for more), using
|
| - * FT_LOAD_NO_SCALE usually yields meaningless outlines because the
|
| - * subglyphs must be scaled and positioned with hinting instructions.
|
| - * This can be solved by loading the font without FT_LOAD_NO_SCALE and
|
| - * setting the character size to `font->units_per_EM'.
|
| - *
|
| - * FT_LOAD_NO_HINTING ::
|
| - * Disable hinting. This generally generates `blurrier' bitmap glyphs
|
| - * when the glyph are rendered in any of the anti-aliased modes. See
|
| - * also the note below.
|
| - *
|
| - * This flag is implied by @FT_LOAD_NO_SCALE.
|
| - *
|
| - * FT_LOAD_RENDER ::
|
| - * Call @FT_Render_Glyph after the glyph is loaded. By default, the
|
| - * glyph is rendered in @FT_RENDER_MODE_NORMAL mode. This can be
|
| - * overridden by @FT_LOAD_TARGET_XXX or @FT_LOAD_MONOCHROME.
|
| - *
|
| - * This flag is unset by @FT_LOAD_NO_SCALE.
|
| - *
|
| - * FT_LOAD_NO_BITMAP ::
|
| - * Ignore bitmap strikes when loading. Bitmap-only fonts ignore this
|
| - * flag.
|
| - *
|
| - * @FT_LOAD_NO_SCALE always sets this flag.
|
| - *
|
| - * FT_LOAD_VERTICAL_LAYOUT ::
|
| - * Load the glyph for vertical text layout. In particular, the
|
| - * `advance' value in the @FT_GlyphSlotRec structure is set to the
|
| - * `vertAdvance' value of the `metrics' field.
|
| - *
|
| - * In case @FT_HAS_VERTICAL doesn't return true, you shouldn't use
|
| - * this flag currently. Reason is that in this case vertical metrics
|
| - * get synthesized, and those values are not always consistent across
|
| - * various font formats.
|
| - *
|
| - * FT_LOAD_FORCE_AUTOHINT ::
|
| - * Indicates that the auto-hinter is preferred over the font's native
|
| - * hinter. See also the note below.
|
| - *
|
| - * FT_LOAD_PEDANTIC ::
|
| - * Indicates that the font driver should perform pedantic verifications
|
| - * during glyph loading. This is mostly used to detect broken glyphs
|
| - * in fonts. By default, FreeType tries to handle broken fonts also.
|
| - *
|
| - * In particular, errors from the TrueType bytecode engine are not
|
| - * passed to the application if this flag is not set; this might
|
| - * result in partially hinted or distorted glyphs in case a glyph's
|
| - * bytecode is buggy.
|
| - *
|
| - * FT_LOAD_NO_RECURSE ::
|
| - * Indicate that the font driver should not load composite glyphs
|
| - * recursively. Instead, it should set the `num_subglyph' and
|
| - * `subglyphs' values of the glyph slot accordingly, and set
|
| - * `glyph->format' to @FT_GLYPH_FORMAT_COMPOSITE. The description of
|
| - * subglyphs can then be accessed with @FT_Get_SubGlyph_Info.
|
| - *
|
| - * This flag implies @FT_LOAD_NO_SCALE and @FT_LOAD_IGNORE_TRANSFORM.
|
| - *
|
| - * FT_LOAD_IGNORE_TRANSFORM ::
|
| - * Indicates that the transform matrix set by @FT_Set_Transform should
|
| - * be ignored.
|
| - *
|
| - * FT_LOAD_MONOCHROME ::
|
| - * This flag is used with @FT_LOAD_RENDER to indicate that you want to
|
| - * render an outline glyph to a 1-bit monochrome bitmap glyph, with
|
| - * 8~pixels packed into each byte of the bitmap data.
|
| - *
|
| - * Note that this has no effect on the hinting algorithm used. You
|
| - * should rather use @FT_LOAD_TARGET_MONO so that the
|
| - * monochrome-optimized hinting algorithm is used.
|
| - *
|
| - * FT_LOAD_LINEAR_DESIGN ::
|
| - * Indicates that the `linearHoriAdvance' and `linearVertAdvance'
|
| - * fields of @FT_GlyphSlotRec should be kept in font units. See
|
| - * @FT_GlyphSlotRec for details.
|
| - *
|
| - * FT_LOAD_NO_AUTOHINT ::
|
| - * Disable auto-hinter. See also the note below.
|
| - *
|
| - * FT_LOAD_COLOR ::
|
| - * This flag is used to request loading of color embedded-bitmap
|
| - * images. The resulting color bitmaps, if available, will have the
|
| - * @FT_PIXEL_MODE_BGRA format. When the flag is not used and color
|
| - * bitmaps are found, they will be converted to 256-level gray
|
| - * bitmaps transparently. Those bitmaps will be in the
|
| - * @FT_PIXEL_MODE_GRAY format.
|
| - *
|
| - * FT_LOAD_CROP_BITMAP ::
|
| - * Ignored. Deprecated.
|
| - *
|
| - * FT_LOAD_IGNORE_GLOBAL_ADVANCE_WIDTH ::
|
| - * Ignored. Deprecated.
|
| - *
|
| - * @note:
|
| - * By default, hinting is enabled and the font's native hinter (see
|
| - * @FT_FACE_FLAG_HINTER) is preferred over the auto-hinter. You can
|
| - * disable hinting by setting @FT_LOAD_NO_HINTING or change the
|
| - * precedence by setting @FT_LOAD_FORCE_AUTOHINT. You can also set
|
| - * @FT_LOAD_NO_AUTOHINT in case you don't want the auto-hinter to be
|
| - * used at all.
|
| - *
|
| - * See the description of @FT_FACE_FLAG_TRICKY for a special exception
|
| - * (affecting only a handful of Asian fonts).
|
| - *
|
| - * Besides deciding which hinter to use, you can also decide which
|
| - * hinting algorithm to use. See @FT_LOAD_TARGET_XXX for details.
|
| - *
|
| - * Note that the auto-hinter needs a valid Unicode cmap (either a native
|
| - * one or synthesized by FreeType) for producing correct results. If a
|
| - * font provides an incorrect mapping (for example, assigning the
|
| - * character code U+005A, LATIN CAPITAL LETTER Z, to a glyph depicting a
|
| - * mathematical integral sign), the auto-hinter might produce useless
|
| - * results.
|
| - *
|
| - */
|
| -#define FT_LOAD_DEFAULT 0x0
|
| -#define FT_LOAD_NO_SCALE ( 1L << 0 )
|
| -#define FT_LOAD_NO_HINTING ( 1L << 1 )
|
| -#define FT_LOAD_RENDER ( 1L << 2 )
|
| -#define FT_LOAD_NO_BITMAP ( 1L << 3 )
|
| -#define FT_LOAD_VERTICAL_LAYOUT ( 1L << 4 )
|
| -#define FT_LOAD_FORCE_AUTOHINT ( 1L << 5 )
|
| -#define FT_LOAD_CROP_BITMAP ( 1L << 6 )
|
| -#define FT_LOAD_PEDANTIC ( 1L << 7 )
|
| -#define FT_LOAD_IGNORE_GLOBAL_ADVANCE_WIDTH ( 1L << 9 )
|
| -#define FT_LOAD_NO_RECURSE ( 1L << 10 )
|
| -#define FT_LOAD_IGNORE_TRANSFORM ( 1L << 11 )
|
| -#define FT_LOAD_MONOCHROME ( 1L << 12 )
|
| -#define FT_LOAD_LINEAR_DESIGN ( 1L << 13 )
|
| -#define FT_LOAD_NO_AUTOHINT ( 1L << 15 )
|
| - /* Bits 16..19 are used by `FT_LOAD_TARGET_' */
|
| -#define FT_LOAD_COLOR ( 1L << 20 )
|
| -
|
| - /* */
|
| -
|
| - /* used internally only by certain font drivers! */
|
| -#define FT_LOAD_ADVANCE_ONLY ( 1L << 8 )
|
| -#define FT_LOAD_SBITS_ONLY ( 1L << 14 )
|
| -
|
| -
|
| - /**************************************************************************
|
| - *
|
| - * @enum:
|
| - * FT_LOAD_TARGET_XXX
|
| - *
|
| - * @description:
|
| - * A list of values that are used to select a specific hinting algorithm
|
| - * to use by the hinter. You should OR one of these values to your
|
| - * `load_flags' when calling @FT_Load_Glyph.
|
| - *
|
| - * Note that font's native hinters may ignore the hinting algorithm you
|
| - * have specified (e.g., the TrueType bytecode interpreter). You can set
|
| - * @FT_LOAD_FORCE_AUTOHINT to ensure that the auto-hinter is used.
|
| - *
|
| - * Also note that @FT_LOAD_TARGET_LIGHT is an exception, in that it
|
| - * always implies @FT_LOAD_FORCE_AUTOHINT.
|
| - *
|
| - * @values:
|
| - * FT_LOAD_TARGET_NORMAL ::
|
| - * This corresponds to the default hinting algorithm, optimized for
|
| - * standard gray-level rendering. For monochrome output, use
|
| - * @FT_LOAD_TARGET_MONO instead.
|
| - *
|
| - * FT_LOAD_TARGET_LIGHT ::
|
| - * A lighter hinting algorithm for non-monochrome modes. Many
|
| - * generated glyphs are more fuzzy but better resemble its original
|
| - * shape. A bit like rendering on Mac OS~X.
|
| - *
|
| - * As a special exception, this target implies @FT_LOAD_FORCE_AUTOHINT.
|
| - *
|
| - * FT_LOAD_TARGET_MONO ::
|
| - * Strong hinting algorithm that should only be used for monochrome
|
| - * output. The result is probably unpleasant if the glyph is rendered
|
| - * in non-monochrome modes.
|
| - *
|
| - * FT_LOAD_TARGET_LCD ::
|
| - * A variant of @FT_LOAD_TARGET_NORMAL optimized for horizontally
|
| - * decimated LCD displays.
|
| - *
|
| - * FT_LOAD_TARGET_LCD_V ::
|
| - * A variant of @FT_LOAD_TARGET_NORMAL optimized for vertically
|
| - * decimated LCD displays.
|
| - *
|
| - * @note:
|
| - * You should use only _one_ of the FT_LOAD_TARGET_XXX values in your
|
| - * `load_flags'. They can't be ORed.
|
| - *
|
| - * If @FT_LOAD_RENDER is also set, the glyph is rendered in the
|
| - * corresponding mode (i.e., the mode that matches the used algorithm
|
| - * best). An exeption is FT_LOAD_TARGET_MONO since it implies
|
| - * @FT_LOAD_MONOCHROME.
|
| - *
|
| - * You can use a hinting algorithm that doesn't correspond to the same
|
| - * rendering mode. As an example, it is possible to use the `light'
|
| - * hinting algorithm and have the results rendered in horizontal LCD
|
| - * pixel mode, with code like
|
| - *
|
| - * {
|
| - * FT_Load_Glyph( face, glyph_index,
|
| - * load_flags | FT_LOAD_TARGET_LIGHT );
|
| - *
|
| - * FT_Render_Glyph( face->glyph, FT_RENDER_MODE_LCD );
|
| - * }
|
| - *
|
| - */
|
| -#define FT_LOAD_TARGET_( x ) ( (FT_Int32)( (x) & 15 ) << 16 )
|
| -
|
| -#define FT_LOAD_TARGET_NORMAL FT_LOAD_TARGET_( FT_RENDER_MODE_NORMAL )
|
| -#define FT_LOAD_TARGET_LIGHT FT_LOAD_TARGET_( FT_RENDER_MODE_LIGHT )
|
| -#define FT_LOAD_TARGET_MONO FT_LOAD_TARGET_( FT_RENDER_MODE_MONO )
|
| -#define FT_LOAD_TARGET_LCD FT_LOAD_TARGET_( FT_RENDER_MODE_LCD )
|
| -#define FT_LOAD_TARGET_LCD_V FT_LOAD_TARGET_( FT_RENDER_MODE_LCD_V )
|
| -
|
| -
|
| - /**************************************************************************
|
| - *
|
| - * @macro:
|
| - * FT_LOAD_TARGET_MODE
|
| - *
|
| - * @description:
|
| - * Return the @FT_Render_Mode corresponding to a given
|
| - * @FT_LOAD_TARGET_XXX value.
|
| - *
|
| - */
|
| -#define FT_LOAD_TARGET_MODE( x ) ( (FT_Render_Mode)( ( (x) >> 16 ) & 15 ) )
|
| -
|
| -
|
| - /*************************************************************************/
|
| - /* */
|
| - /* <Function> */
|
| - /* FT_Set_Transform */
|
| - /* */
|
| - /* <Description> */
|
| - /* A function used to set the transformation that is applied to glyph */
|
| - /* images when they are loaded into a glyph slot through */
|
| - /* @FT_Load_Glyph. */
|
| - /* */
|
| - /* <InOut> */
|
| - /* face :: A handle to the source face object. */
|
| - /* */
|
| - /* <Input> */
|
| - /* matrix :: A pointer to the transformation's 2x2 matrix. Use~0 for */
|
| - /* the identity matrix. */
|
| - /* delta :: A pointer to the translation vector. Use~0 for the null */
|
| - /* vector. */
|
| - /* */
|
| - /* <Note> */
|
| - /* The transformation is only applied to scalable image formats after */
|
| - /* the glyph has been loaded. It means that hinting is unaltered by */
|
| - /* the transformation and is performed on the character size given in */
|
| - /* the last call to @FT_Set_Char_Size or @FT_Set_Pixel_Sizes. */
|
| - /* */
|
| - /* Note that this also transforms the `face.glyph.advance' field, but */
|
| - /* *not* the values in `face.glyph.metrics'. */
|
| - /* */
|
| - FT_EXPORT( void )
|
| - FT_Set_Transform( FT_Face face,
|
| - FT_Matrix* matrix,
|
| - FT_Vector* delta );
|
| -
|
| -
|
| - /*************************************************************************/
|
| - /* */
|
| - /* <Enum> */
|
| - /* FT_Render_Mode */
|
| - /* */
|
| - /* <Description> */
|
| - /* An enumeration type that lists the render modes supported by */
|
| - /* FreeType~2. Each mode corresponds to a specific type of scanline */
|
| - /* conversion performed on the outline. */
|
| - /* */
|
| - /* For bitmap fonts and embedded bitmaps the `bitmap->pixel_mode' */
|
| - /* field in the @FT_GlyphSlotRec structure gives the format of the */
|
| - /* returned bitmap. */
|
| - /* */
|
| - /* All modes except @FT_RENDER_MODE_MONO use 256 levels of opacity. */
|
| - /* */
|
| - /* <Values> */
|
| - /* FT_RENDER_MODE_NORMAL :: */
|
| - /* This is the default render mode; it corresponds to 8-bit */
|
| - /* anti-aliased bitmaps. */
|
| - /* */
|
| - /* FT_RENDER_MODE_LIGHT :: */
|
| - /* This is equivalent to @FT_RENDER_MODE_NORMAL. It is only */
|
| - /* defined as a separate value because render modes are also used */
|
| - /* indirectly to define hinting algorithm selectors. See */
|
| - /* @FT_LOAD_TARGET_XXX for details. */
|
| - /* */
|
| - /* FT_RENDER_MODE_MONO :: */
|
| - /* This mode corresponds to 1-bit bitmaps (with 2~levels of */
|
| - /* opacity). */
|
| - /* */
|
| - /* FT_RENDER_MODE_LCD :: */
|
| - /* This mode corresponds to horizontal RGB and BGR sub-pixel */
|
| - /* displays like LCD screens. It produces 8-bit bitmaps that are */
|
| - /* 3~times the width of the original glyph outline in pixels, and */
|
| - /* which use the @FT_PIXEL_MODE_LCD mode. */
|
| - /* */
|
| - /* FT_RENDER_MODE_LCD_V :: */
|
| - /* This mode corresponds to vertical RGB and BGR sub-pixel displays */
|
| - /* (like PDA screens, rotated LCD displays, etc.). It produces */
|
| - /* 8-bit bitmaps that are 3~times the height of the original */
|
| - /* glyph outline in pixels and use the @FT_PIXEL_MODE_LCD_V mode. */
|
| - /* */
|
| - /* <Note> */
|
| - /* The LCD-optimized glyph bitmaps produced by FT_Render_Glyph can be */
|
| - /* filtered to reduce color-fringes by using @FT_Library_SetLcdFilter */
|
| - /* (not active in the default builds). It is up to the caller to */
|
| - /* either call @FT_Library_SetLcdFilter (if available) or do the */
|
| - /* filtering itself. */
|
| - /* */
|
| - /* The selected render mode only affects vector glyphs of a font. */
|
| - /* Embedded bitmaps often have a different pixel mode like */
|
| - /* @FT_PIXEL_MODE_MONO. You can use @FT_Bitmap_Convert to transform */
|
| - /* them into 8-bit pixmaps. */
|
| - /* */
|
| - typedef enum FT_Render_Mode_
|
| - {
|
| - FT_RENDER_MODE_NORMAL = 0,
|
| - FT_RENDER_MODE_LIGHT,
|
| - FT_RENDER_MODE_MONO,
|
| - FT_RENDER_MODE_LCD,
|
| - FT_RENDER_MODE_LCD_V,
|
| -
|
| - FT_RENDER_MODE_MAX
|
| -
|
| - } FT_Render_Mode;
|
| -
|
| -
|
| - /* these constants are deprecated; use the corresponding */
|
| - /* `FT_Render_Mode' values instead */
|
| -#define ft_render_mode_normal FT_RENDER_MODE_NORMAL
|
| -#define ft_render_mode_mono FT_RENDER_MODE_MONO
|
| -
|
| -
|
| - /*************************************************************************/
|
| - /* */
|
| - /* <Function> */
|
| - /* FT_Render_Glyph */
|
| - /* */
|
| - /* <Description> */
|
| - /* Convert a given glyph image to a bitmap. It does so by inspecting */
|
| - /* the glyph image format, finding the relevant renderer, and */
|
| - /* invoking it. */
|
| - /* */
|
| - /* <InOut> */
|
| - /* slot :: A handle to the glyph slot containing the image to */
|
| - /* convert. */
|
| - /* */
|
| - /* <Input> */
|
| - /* render_mode :: This is the render mode used to render the glyph */
|
| - /* image into a bitmap. See @FT_Render_Mode for a */
|
| - /* list of possible values. */
|
| - /* */
|
| - /* <Return> */
|
| - /* FreeType error code. 0~means success. */
|
| - /* */
|
| - /* <Note> */
|
| - /* To get meaningful results, font scaling values must be set with */
|
| - /* functions like @FT_Set_Char_Size before calling FT_Render_Glyph. */
|
| - /* */
|
| - FT_EXPORT( FT_Error )
|
| - FT_Render_Glyph( FT_GlyphSlot slot,
|
| - FT_Render_Mode render_mode );
|
| -
|
| -
|
| - /*************************************************************************/
|
| - /* */
|
| - /* <Enum> */
|
| - /* FT_Kerning_Mode */
|
| - /* */
|
| - /* <Description> */
|
| - /* An enumeration used to specify which kerning values to return in */
|
| - /* @FT_Get_Kerning. */
|
| - /* */
|
| - /* <Values> */
|
| - /* FT_KERNING_DEFAULT :: Return scaled and grid-fitted kerning */
|
| - /* distances (value is~0). */
|
| - /* */
|
| - /* FT_KERNING_UNFITTED :: Return scaled but un-grid-fitted kerning */
|
| - /* distances. */
|
| - /* */
|
| - /* FT_KERNING_UNSCALED :: Return the kerning vector in original font */
|
| - /* units. */
|
| - /* */
|
| - typedef enum FT_Kerning_Mode_
|
| - {
|
| - FT_KERNING_DEFAULT = 0,
|
| - FT_KERNING_UNFITTED,
|
| - FT_KERNING_UNSCALED
|
| -
|
| - } FT_Kerning_Mode;
|
| -
|
| -
|
| - /* these constants are deprecated; use the corresponding */
|
| - /* `FT_Kerning_Mode' values instead */
|
| -#define ft_kerning_default FT_KERNING_DEFAULT
|
| -#define ft_kerning_unfitted FT_KERNING_UNFITTED
|
| -#define ft_kerning_unscaled FT_KERNING_UNSCALED
|
| -
|
| -
|
| - /*************************************************************************/
|
| - /* */
|
| - /* <Function> */
|
| - /* FT_Get_Kerning */
|
| - /* */
|
| - /* <Description> */
|
| - /* Return the kerning vector between two glyphs of a same face. */
|
| - /* */
|
| - /* <Input> */
|
| - /* face :: A handle to a source face object. */
|
| - /* */
|
| - /* left_glyph :: The index of the left glyph in the kern pair. */
|
| - /* */
|
| - /* right_glyph :: The index of the right glyph in the kern pair. */
|
| - /* */
|
| - /* kern_mode :: See @FT_Kerning_Mode for more information. */
|
| - /* Determines the scale and dimension of the returned */
|
| - /* kerning vector. */
|
| - /* */
|
| - /* <Output> */
|
| - /* akerning :: The kerning vector. This is either in font units */
|
| - /* or in pixels (26.6 format) for scalable formats, */
|
| - /* and in pixels for fixed-sizes formats. */
|
| - /* */
|
| - /* <Return> */
|
| - /* FreeType error code. 0~means success. */
|
| - /* */
|
| - /* <Note> */
|
| - /* Only horizontal layouts (left-to-right & right-to-left) are */
|
| - /* supported by this method. Other layouts, or more sophisticated */
|
| - /* kernings, are out of the scope of this API function -- they can be */
|
| - /* implemented through format-specific interfaces. */
|
| - /* */
|
| - FT_EXPORT( FT_Error )
|
| - FT_Get_Kerning( FT_Face face,
|
| - FT_UInt left_glyph,
|
| - FT_UInt right_glyph,
|
| - FT_UInt kern_mode,
|
| - FT_Vector *akerning );
|
| -
|
| -
|
| - /*************************************************************************/
|
| - /* */
|
| - /* <Function> */
|
| - /* FT_Get_Track_Kerning */
|
| - /* */
|
| - /* <Description> */
|
| - /* Return the track kerning for a given face object at a given size. */
|
| - /* */
|
| - /* <Input> */
|
| - /* face :: A handle to a source face object. */
|
| - /* */
|
| - /* point_size :: The point size in 16.16 fractional points. */
|
| - /* */
|
| - /* degree :: The degree of tightness. Increasingly negative */
|
| - /* values represent tighter track kerning, while */
|
| - /* increasingly positive values represent looser track */
|
| - /* kerning. Value zero means no track kerning. */
|
| - /* */
|
| - /* <Output> */
|
| - /* akerning :: The kerning in 16.16 fractional points, to be */
|
| - /* uniformly applied between all glyphs. */
|
| - /* */
|
| - /* <Return> */
|
| - /* FreeType error code. 0~means success. */
|
| - /* */
|
| - /* <Note> */
|
| - /* Currently, only the Type~1 font driver supports track kerning, */
|
| - /* using data from AFM files (if attached with @FT_Attach_File or */
|
| - /* @FT_Attach_Stream). */
|
| - /* */
|
| - /* Only very few AFM files come with track kerning data; please refer */
|
| - /* to the Adobe's AFM specification for more details. */
|
| - /* */
|
| - FT_EXPORT( FT_Error )
|
| - FT_Get_Track_Kerning( FT_Face face,
|
| - FT_Fixed point_size,
|
| - FT_Int degree,
|
| - FT_Fixed* akerning );
|
| -
|
| -
|
| - /*************************************************************************/
|
| - /* */
|
| - /* <Function> */
|
| - /* FT_Get_Glyph_Name */
|
| - /* */
|
| - /* <Description> */
|
| - /* Retrieve the ASCII name of a given glyph in a face. This only */
|
| - /* works for those faces where @FT_HAS_GLYPH_NAMES(face) returns~1. */
|
| - /* */
|
| - /* <Input> */
|
| - /* face :: A handle to a source face object. */
|
| - /* */
|
| - /* glyph_index :: The glyph index. */
|
| - /* */
|
| - /* buffer_max :: The maximum number of bytes available in the */
|
| - /* buffer. */
|
| - /* */
|
| - /* <Output> */
|
| - /* buffer :: A pointer to a target buffer where the name is */
|
| - /* copied to. */
|
| - /* */
|
| - /* <Return> */
|
| - /* FreeType error code. 0~means success. */
|
| - /* */
|
| - /* <Note> */
|
| - /* An error is returned if the face doesn't provide glyph names or if */
|
| - /* the glyph index is invalid. In all cases of failure, the first */
|
| - /* byte of `buffer' is set to~0 to indicate an empty name. */
|
| - /* */
|
| - /* The glyph name is truncated to fit within the buffer if it is too */
|
| - /* long. The returned string is always zero-terminated. */
|
| - /* */
|
| - /* Be aware that FreeType reorders glyph indices internally so that */
|
| - /* glyph index~0 always corresponds to the `missing glyph' (called */
|
| - /* `.notdef'). */
|
| - /* */
|
| - /* This function always returns an error if the config macro */
|
| - /* `FT_CONFIG_OPTION_NO_GLYPH_NAMES' is not defined in `ftoptions.h'. */
|
| - /* */
|
| - FT_EXPORT( FT_Error )
|
| - FT_Get_Glyph_Name( FT_Face face,
|
| - FT_UInt glyph_index,
|
| - FT_Pointer buffer,
|
| - FT_UInt buffer_max );
|
| -
|
| -
|
| - /*************************************************************************/
|
| - /* */
|
| - /* <Function> */
|
| - /* FT_Get_Postscript_Name */
|
| - /* */
|
| - /* <Description> */
|
| - /* Retrieve the ASCII PostScript name of a given face, if available. */
|
| - /* This only works with PostScript and TrueType fonts. */
|
| - /* */
|
| - /* <Input> */
|
| - /* face :: A handle to the source face object. */
|
| - /* */
|
| - /* <Return> */
|
| - /* A pointer to the face's PostScript name. NULL if unavailable. */
|
| - /* */
|
| - /* <Note> */
|
| - /* The returned pointer is owned by the face and is destroyed with */
|
| - /* it. */
|
| - /* */
|
| - FT_EXPORT( const char* )
|
| - FT_Get_Postscript_Name( FT_Face face );
|
| -
|
| -
|
| - /*************************************************************************/
|
| - /* */
|
| - /* <Function> */
|
| - /* FT_Select_Charmap */
|
| - /* */
|
| - /* <Description> */
|
| - /* Select a given charmap by its encoding tag (as listed in */
|
| - /* `freetype.h'). */
|
| - /* */
|
| - /* <InOut> */
|
| - /* face :: A handle to the source face object. */
|
| - /* */
|
| - /* <Input> */
|
| - /* encoding :: A handle to the selected encoding. */
|
| - /* */
|
| - /* <Return> */
|
| - /* FreeType error code. 0~means success. */
|
| - /* */
|
| - /* <Note> */
|
| - /* This function returns an error if no charmap in the face */
|
| - /* corresponds to the encoding queried here. */
|
| - /* */
|
| - /* Because many fonts contain more than a single cmap for Unicode */
|
| - /* encoding, this function has some special code to select the one */
|
| - /* that covers Unicode best (`best' in the sense that a UCS-4 cmap is */
|
| - /* preferred to a UCS-2 cmap). It is thus preferable to */
|
| - /* @FT_Set_Charmap in this case. */
|
| - /* */
|
| - FT_EXPORT( FT_Error )
|
| - FT_Select_Charmap( FT_Face face,
|
| - FT_Encoding encoding );
|
| -
|
| -
|
| - /*************************************************************************/
|
| - /* */
|
| - /* <Function> */
|
| - /* FT_Set_Charmap */
|
| - /* */
|
| - /* <Description> */
|
| - /* Select a given charmap for character code to glyph index mapping. */
|
| - /* */
|
| - /* <InOut> */
|
| - /* face :: A handle to the source face object. */
|
| - /* */
|
| - /* <Input> */
|
| - /* charmap :: A handle to the selected charmap. */
|
| - /* */
|
| - /* <Return> */
|
| - /* FreeType error code. 0~means success. */
|
| - /* */
|
| - /* <Note> */
|
| - /* This function returns an error if the charmap is not part of */
|
| - /* the face (i.e., if it is not listed in the `face->charmaps' */
|
| - /* table). */
|
| - /* */
|
| - /* It also fails if a type~14 charmap is selected. */
|
| - /* */
|
| - FT_EXPORT( FT_Error )
|
| - FT_Set_Charmap( FT_Face face,
|
| - FT_CharMap charmap );
|
| -
|
| -
|
| - /*************************************************************************
|
| - *
|
| - * @function:
|
| - * FT_Get_Charmap_Index
|
| - *
|
| - * @description:
|
| - * Retrieve index of a given charmap.
|
| - *
|
| - * @input:
|
| - * charmap ::
|
| - * A handle to a charmap.
|
| - *
|
| - * @return:
|
| - * The index into the array of character maps within the face to which
|
| - * `charmap' belongs. If an error occurs, -1 is returned.
|
| - *
|
| - */
|
| - FT_EXPORT( FT_Int )
|
| - FT_Get_Charmap_Index( FT_CharMap charmap );
|
| -
|
| -
|
| - /*************************************************************************/
|
| - /* */
|
| - /* <Function> */
|
| - /* FT_Get_Char_Index */
|
| - /* */
|
| - /* <Description> */
|
| - /* Return the glyph index of a given character code. This function */
|
| - /* uses a charmap object to do the mapping. */
|
| - /* */
|
| - /* <Input> */
|
| - /* face :: A handle to the source face object. */
|
| - /* */
|
| - /* charcode :: The character code. */
|
| - /* */
|
| - /* <Return> */
|
| - /* The glyph index. 0~means `undefined character code'. */
|
| - /* */
|
| - /* <Note> */
|
| - /* If you use FreeType to manipulate the contents of font files */
|
| - /* directly, be aware that the glyph index returned by this function */
|
| - /* doesn't always correspond to the internal indices used within the */
|
| - /* file. This is done to ensure that value~0 always corresponds to */
|
| - /* the `missing glyph'. If the first glyph is not named `.notdef', */
|
| - /* then for Type~1 and Type~42 fonts, `.notdef' will be moved into */
|
| - /* the glyph ID~0 position, and whatever was there will be moved to */
|
| - /* the position `.notdef' had. For Type~1 fonts, if there is no */
|
| - /* `.notdef' glyph at all, then one will be created at index~0 and */
|
| - /* whatever was there will be moved to the last index -- Type~42 */
|
| - /* fonts are considered invalid under this condition. */
|
| - /* */
|
| - FT_EXPORT( FT_UInt )
|
| - FT_Get_Char_Index( FT_Face face,
|
| - FT_ULong charcode );
|
| -
|
| -
|
| - /*************************************************************************/
|
| - /* */
|
| - /* <Function> */
|
| - /* FT_Get_First_Char */
|
| - /* */
|
| - /* <Description> */
|
| - /* This function is used to return the first character code in the */
|
| - /* current charmap of a given face. It also returns the */
|
| - /* corresponding glyph index. */
|
| - /* */
|
| - /* <Input> */
|
| - /* face :: A handle to the source face object. */
|
| - /* */
|
| - /* <Output> */
|
| - /* agindex :: Glyph index of first character code. 0~if charmap is */
|
| - /* empty. */
|
| - /* */
|
| - /* <Return> */
|
| - /* The charmap's first character code. */
|
| - /* */
|
| - /* <Note> */
|
| - /* You should use this function with @FT_Get_Next_Char to be able to */
|
| - /* parse all character codes available in a given charmap. The code */
|
| - /* should look like this: */
|
| - /* */
|
| - /* { */
|
| - /* FT_ULong charcode; */
|
| - /* FT_UInt gindex; */
|
| - /* */
|
| - /* */
|
| - /* charcode = FT_Get_First_Char( face, &gindex ); */
|
| - /* while ( gindex != 0 ) */
|
| - /* { */
|
| - /* ... do something with (charcode,gindex) pair ... */
|
| - /* */
|
| - /* charcode = FT_Get_Next_Char( face, charcode, &gindex ); */
|
| - /* } */
|
| - /* } */
|
| - /* */
|
| - /* Note that `*agindex' is set to~0 if the charmap is empty. The */
|
| - /* result itself can be~0 in two cases: if the charmap is empty or */
|
| - /* if the value~0 is the first valid character code. */
|
| - /* */
|
| - FT_EXPORT( FT_ULong )
|
| - FT_Get_First_Char( FT_Face face,
|
| - FT_UInt *agindex );
|
| -
|
| -
|
| - /*************************************************************************/
|
| - /* */
|
| - /* <Function> */
|
| - /* FT_Get_Next_Char */
|
| - /* */
|
| - /* <Description> */
|
| - /* This function is used to return the next character code in the */
|
| - /* current charmap of a given face following the value `char_code', */
|
| - /* as well as the corresponding glyph index. */
|
| - /* */
|
| - /* <Input> */
|
| - /* face :: A handle to the source face object. */
|
| - /* char_code :: The starting character code. */
|
| - /* */
|
| - /* <Output> */
|
| - /* agindex :: Glyph index of next character code. 0~if charmap */
|
| - /* is empty. */
|
| - /* */
|
| - /* <Return> */
|
| - /* The charmap's next character code. */
|
| - /* */
|
| - /* <Note> */
|
| - /* You should use this function with @FT_Get_First_Char to walk */
|
| - /* over all character codes available in a given charmap. See the */
|
| - /* note for this function for a simple code example. */
|
| - /* */
|
| - /* Note that `*agindex' is set to~0 when there are no more codes in */
|
| - /* the charmap. */
|
| - /* */
|
| - FT_EXPORT( FT_ULong )
|
| - FT_Get_Next_Char( FT_Face face,
|
| - FT_ULong char_code,
|
| - FT_UInt *agindex );
|
| -
|
| -
|
| - /*************************************************************************/
|
| - /* */
|
| - /* <Function> */
|
| - /* FT_Get_Name_Index */
|
| - /* */
|
| - /* <Description> */
|
| - /* Return the glyph index of a given glyph name. This function uses */
|
| - /* driver specific objects to do the translation. */
|
| - /* */
|
| - /* <Input> */
|
| - /* face :: A handle to the source face object. */
|
| - /* */
|
| - /* glyph_name :: The glyph name. */
|
| - /* */
|
| - /* <Return> */
|
| - /* The glyph index. 0~means `undefined character code'. */
|
| - /* */
|
| - FT_EXPORT( FT_UInt )
|
| - FT_Get_Name_Index( FT_Face face,
|
| - FT_String* glyph_name );
|
| -
|
| -
|
| - /*************************************************************************
|
| - *
|
| - * @macro:
|
| - * FT_SUBGLYPH_FLAG_XXX
|
| - *
|
| - * @description:
|
| - * A list of constants used to describe subglyphs. Please refer to the
|
| - * TrueType specification for the meaning of the various flags.
|
| - *
|
| - * @values:
|
| - * FT_SUBGLYPH_FLAG_ARGS_ARE_WORDS ::
|
| - * FT_SUBGLYPH_FLAG_ARGS_ARE_XY_VALUES ::
|
| - * FT_SUBGLYPH_FLAG_ROUND_XY_TO_GRID ::
|
| - * FT_SUBGLYPH_FLAG_SCALE ::
|
| - * FT_SUBGLYPH_FLAG_XY_SCALE ::
|
| - * FT_SUBGLYPH_FLAG_2X2 ::
|
| - * FT_SUBGLYPH_FLAG_USE_MY_METRICS ::
|
| - *
|
| - */
|
| -#define FT_SUBGLYPH_FLAG_ARGS_ARE_WORDS 1
|
| -#define FT_SUBGLYPH_FLAG_ARGS_ARE_XY_VALUES 2
|
| -#define FT_SUBGLYPH_FLAG_ROUND_XY_TO_GRID 4
|
| -#define FT_SUBGLYPH_FLAG_SCALE 8
|
| -#define FT_SUBGLYPH_FLAG_XY_SCALE 0x40
|
| -#define FT_SUBGLYPH_FLAG_2X2 0x80
|
| -#define FT_SUBGLYPH_FLAG_USE_MY_METRICS 0x200
|
| -
|
| -
|
| - /*************************************************************************
|
| - *
|
| - * @func:
|
| - * FT_Get_SubGlyph_Info
|
| - *
|
| - * @description:
|
| - * Retrieve a description of a given subglyph. Only use it if
|
| - * `glyph->format' is @FT_GLYPH_FORMAT_COMPOSITE; an error is
|
| - * returned otherwise.
|
| - *
|
| - * @input:
|
| - * glyph ::
|
| - * The source glyph slot.
|
| - *
|
| - * sub_index ::
|
| - * The index of the subglyph. Must be less than
|
| - * `glyph->num_subglyphs'.
|
| - *
|
| - * @output:
|
| - * p_index ::
|
| - * The glyph index of the subglyph.
|
| - *
|
| - * p_flags ::
|
| - * The subglyph flags, see @FT_SUBGLYPH_FLAG_XXX.
|
| - *
|
| - * p_arg1 ::
|
| - * The subglyph's first argument (if any).
|
| - *
|
| - * p_arg2 ::
|
| - * The subglyph's second argument (if any).
|
| - *
|
| - * p_transform ::
|
| - * The subglyph transformation (if any).
|
| - *
|
| - * @return:
|
| - * FreeType error code. 0~means success.
|
| - *
|
| - * @note:
|
| - * The values of `*p_arg1', `*p_arg2', and `*p_transform' must be
|
| - * interpreted depending on the flags returned in `*p_flags'. See the
|
| - * TrueType specification for details.
|
| - *
|
| - */
|
| - FT_EXPORT( FT_Error )
|
| - FT_Get_SubGlyph_Info( FT_GlyphSlot glyph,
|
| - FT_UInt sub_index,
|
| - FT_Int *p_index,
|
| - FT_UInt *p_flags,
|
| - FT_Int *p_arg1,
|
| - FT_Int *p_arg2,
|
| - FT_Matrix *p_transform );
|
| -
|
| -
|
| - /*************************************************************************/
|
| - /* */
|
| - /* <Enum> */
|
| - /* FT_FSTYPE_XXX */
|
| - /* */
|
| - /* <Description> */
|
| - /* A list of bit flags used in the `fsType' field of the OS/2 table */
|
| - /* in a TrueType or OpenType font and the `FSType' entry in a */
|
| - /* PostScript font. These bit flags are returned by */
|
| - /* @FT_Get_FSType_Flags; they inform client applications of embedding */
|
| - /* and subsetting restrictions associated with a font. */
|
| - /* */
|
| - /* See http://www.adobe.com/devnet/acrobat/pdfs/FontPolicies.pdf for */
|
| - /* more details. */
|
| - /* */
|
| - /* <Values> */
|
| - /* FT_FSTYPE_INSTALLABLE_EMBEDDING :: */
|
| - /* Fonts with no fsType bit set may be embedded and permanently */
|
| - /* installed on the remote system by an application. */
|
| - /* */
|
| - /* FT_FSTYPE_RESTRICTED_LICENSE_EMBEDDING :: */
|
| - /* Fonts that have only this bit set must not be modified, embedded */
|
| - /* or exchanged in any manner without first obtaining permission of */
|
| - /* the font software copyright owner. */
|
| - /* */
|
| - /* FT_FSTYPE_PREVIEW_AND_PRINT_EMBEDDING :: */
|
| - /* If this bit is set, the font may be embedded and temporarily */
|
| - /* loaded on the remote system. Documents containing Preview & */
|
| - /* Print fonts must be opened `read-only'; no edits can be applied */
|
| - /* to the document. */
|
| - /* */
|
| - /* FT_FSTYPE_EDITABLE_EMBEDDING :: */
|
| - /* If this bit is set, the font may be embedded but must only be */
|
| - /* installed temporarily on other systems. In contrast to Preview */
|
| - /* & Print fonts, documents containing editable fonts may be opened */
|
| - /* for reading, editing is permitted, and changes may be saved. */
|
| - /* */
|
| - /* FT_FSTYPE_NO_SUBSETTING :: */
|
| - /* If this bit is set, the font may not be subsetted prior to */
|
| - /* embedding. */
|
| - /* */
|
| - /* FT_FSTYPE_BITMAP_EMBEDDING_ONLY :: */
|
| - /* If this bit is set, only bitmaps contained in the font may be */
|
| - /* embedded; no outline data may be embedded. If there are no */
|
| - /* bitmaps available in the font, then the font is unembeddable. */
|
| - /* */
|
| - /* <Note> */
|
| - /* While the fsType flags can indicate that a font may be embedded, a */
|
| - /* license with the font vendor may be separately required to use the */
|
| - /* font in this way. */
|
| - /* */
|
| -#define FT_FSTYPE_INSTALLABLE_EMBEDDING 0x0000
|
| -#define FT_FSTYPE_RESTRICTED_LICENSE_EMBEDDING 0x0002
|
| -#define FT_FSTYPE_PREVIEW_AND_PRINT_EMBEDDING 0x0004
|
| -#define FT_FSTYPE_EDITABLE_EMBEDDING 0x0008
|
| -#define FT_FSTYPE_NO_SUBSETTING 0x0100
|
| -#define FT_FSTYPE_BITMAP_EMBEDDING_ONLY 0x0200
|
| -
|
| -
|
| - /*************************************************************************/
|
| - /* */
|
| - /* <Function> */
|
| - /* FT_Get_FSType_Flags */
|
| - /* */
|
| - /* <Description> */
|
| - /* Return the fsType flags for a font. */
|
| - /* */
|
| - /* <Input> */
|
| - /* face :: A handle to the source face object. */
|
| - /* */
|
| - /* <Return> */
|
| - /* The fsType flags, @FT_FSTYPE_XXX. */
|
| - /* */
|
| - /* <Note> */
|
| - /* Use this function rather than directly reading the `fs_type' field */
|
| - /* in the @PS_FontInfoRec structure, which is only guaranteed to */
|
| - /* return the correct results for Type~1 fonts. */
|
| - /* */
|
| - /* <Since> */
|
| - /* 2.3.8 */
|
| - /* */
|
| - FT_EXPORT( FT_UShort )
|
| - FT_Get_FSType_Flags( FT_Face face );
|
| -
|
| -
|
| - /*************************************************************************/
|
| - /* */
|
| - /* <Section> */
|
| - /* glyph_variants */
|
| - /* */
|
| - /* <Title> */
|
| - /* Glyph Variants */
|
| - /* */
|
| - /* <Abstract> */
|
| - /* The FreeType~2 interface to Unicode Ideographic Variation */
|
| - /* Sequences (IVS), using the SFNT cmap format~14. */
|
| - /* */
|
| - /* <Description> */
|
| - /* Many CJK characters have variant forms. They are a sort of grey */
|
| - /* area somewhere between being totally irrelevant and semantically */
|
| - /* distinct; for this reason, the Unicode consortium decided to */
|
| - /* introduce Ideographic Variation Sequences (IVS), consisting of a */
|
| - /* Unicode base character and one of 240 variant selectors */
|
| - /* (U+E0100-U+E01EF), instead of further extending the already huge */
|
| - /* code range for CJK characters. */
|
| - /* */
|
| - /* An IVS is registered and unique; for further details please refer */
|
| - /* to Unicode Technical Standard #37, the Ideographic Variation */
|
| - /* Database: */
|
| - /* */
|
| - /* http://www.unicode.org/reports/tr37/ */
|
| - /* */
|
| - /* To date (November 2014), the character with the most variants is */
|
| - /* U+9089, having 32 such IVS. */
|
| - /* */
|
| - /* Adobe and MS decided to support IVS with a new cmap subtable */
|
| - /* (format~14). It is an odd subtable because it is not a mapping of */
|
| - /* input code points to glyphs, but contains lists of all variants */
|
| - /* supported by the font. */
|
| - /* */
|
| - /* A variant may be either `default' or `non-default'. A default */
|
| - /* variant is the one you will get for that code point if you look it */
|
| - /* up in the standard Unicode cmap. A non-default variant is a */
|
| - /* different glyph. */
|
| - /* */
|
| - /*************************************************************************/
|
| -
|
| -
|
| - /*************************************************************************/
|
| - /* */
|
| - /* <Function> */
|
| - /* FT_Face_GetCharVariantIndex */
|
| - /* */
|
| - /* <Description> */
|
| - /* Return the glyph index of a given character code as modified by */
|
| - /* the variation selector. */
|
| - /* */
|
| - /* <Input> */
|
| - /* face :: */
|
| - /* A handle to the source face object. */
|
| - /* */
|
| - /* charcode :: */
|
| - /* The character code point in Unicode. */
|
| - /* */
|
| - /* variantSelector :: */
|
| - /* The Unicode code point of the variation selector. */
|
| - /* */
|
| - /* <Return> */
|
| - /* The glyph index. 0~means either `undefined character code', or */
|
| - /* `undefined selector code', or `no variation selector cmap */
|
| - /* subtable', or `current CharMap is not Unicode'. */
|
| - /* */
|
| - /* <Note> */
|
| - /* If you use FreeType to manipulate the contents of font files */
|
| - /* directly, be aware that the glyph index returned by this function */
|
| - /* doesn't always correspond to the internal indices used within */
|
| - /* the file. This is done to ensure that value~0 always corresponds */
|
| - /* to the `missing glyph'. */
|
| - /* */
|
| - /* This function is only meaningful if */
|
| - /* a) the font has a variation selector cmap sub table, */
|
| - /* and */
|
| - /* b) the current charmap has a Unicode encoding. */
|
| - /* */
|
| - /* <Since> */
|
| - /* 2.3.6 */
|
| - /* */
|
| - FT_EXPORT( FT_UInt )
|
| - FT_Face_GetCharVariantIndex( FT_Face face,
|
| - FT_ULong charcode,
|
| - FT_ULong variantSelector );
|
| -
|
| -
|
| - /*************************************************************************/
|
| - /* */
|
| - /* <Function> */
|
| - /* FT_Face_GetCharVariantIsDefault */
|
| - /* */
|
| - /* <Description> */
|
| - /* Check whether this variant of this Unicode character is the one to */
|
| - /* be found in the `cmap'. */
|
| - /* */
|
| - /* <Input> */
|
| - /* face :: */
|
| - /* A handle to the source face object. */
|
| - /* */
|
| - /* charcode :: */
|
| - /* The character codepoint in Unicode. */
|
| - /* */
|
| - /* variantSelector :: */
|
| - /* The Unicode codepoint of the variation selector. */
|
| - /* */
|
| - /* <Return> */
|
| - /* 1~if found in the standard (Unicode) cmap, 0~if found in the */
|
| - /* variation selector cmap, or -1 if it is not a variant. */
|
| - /* */
|
| - /* <Note> */
|
| - /* This function is only meaningful if the font has a variation */
|
| - /* selector cmap subtable. */
|
| - /* */
|
| - /* <Since> */
|
| - /* 2.3.6 */
|
| - /* */
|
| - FT_EXPORT( FT_Int )
|
| - FT_Face_GetCharVariantIsDefault( FT_Face face,
|
| - FT_ULong charcode,
|
| - FT_ULong variantSelector );
|
| -
|
| -
|
| - /*************************************************************************/
|
| - /* */
|
| - /* <Function> */
|
| - /* FT_Face_GetVariantSelectors */
|
| - /* */
|
| - /* <Description> */
|
| - /* Return a zero-terminated list of Unicode variant selectors found */
|
| - /* in the font. */
|
| - /* */
|
| - /* <Input> */
|
| - /* face :: */
|
| - /* A handle to the source face object. */
|
| - /* */
|
| - /* <Return> */
|
| - /* A pointer to an array of selector code points, or NULL if there is */
|
| - /* no valid variant selector cmap subtable. */
|
| - /* */
|
| - /* <Note> */
|
| - /* The last item in the array is~0; the array is owned by the */
|
| - /* @FT_Face object but can be overwritten or released on the next */
|
| - /* call to a FreeType function. */
|
| - /* */
|
| - /* <Since> */
|
| - /* 2.3.6 */
|
| - /* */
|
| - FT_EXPORT( FT_UInt32* )
|
| - FT_Face_GetVariantSelectors( FT_Face face );
|
| -
|
| -
|
| - /*************************************************************************/
|
| - /* */
|
| - /* <Function> */
|
| - /* FT_Face_GetVariantsOfChar */
|
| - /* */
|
| - /* <Description> */
|
| - /* Return a zero-terminated list of Unicode variant selectors found */
|
| - /* for the specified character code. */
|
| - /* */
|
| - /* <Input> */
|
| - /* face :: */
|
| - /* A handle to the source face object. */
|
| - /* */
|
| - /* charcode :: */
|
| - /* The character codepoint in Unicode. */
|
| - /* */
|
| - /* <Return> */
|
| - /* A pointer to an array of variant selector code points that are */
|
| - /* active for the given character, or NULL if the corresponding list */
|
| - /* is empty. */
|
| - /* */
|
| - /* <Note> */
|
| - /* The last item in the array is~0; the array is owned by the */
|
| - /* @FT_Face object but can be overwritten or released on the next */
|
| - /* call to a FreeType function. */
|
| - /* */
|
| - /* <Since> */
|
| - /* 2.3.6 */
|
| - /* */
|
| - FT_EXPORT( FT_UInt32* )
|
| - FT_Face_GetVariantsOfChar( FT_Face face,
|
| - FT_ULong charcode );
|
| -
|
| -
|
| - /*************************************************************************/
|
| - /* */
|
| - /* <Function> */
|
| - /* FT_Face_GetCharsOfVariant */
|
| - /* */
|
| - /* <Description> */
|
| - /* Return a zero-terminated list of Unicode character codes found for */
|
| - /* the specified variant selector. */
|
| - /* */
|
| - /* <Input> */
|
| - /* face :: */
|
| - /* A handle to the source face object. */
|
| - /* */
|
| - /* variantSelector :: */
|
| - /* The variant selector code point in Unicode. */
|
| - /* */
|
| - /* <Return> */
|
| - /* A list of all the code points that are specified by this selector */
|
| - /* (both default and non-default codes are returned) or NULL if there */
|
| - /* is no valid cmap or the variant selector is invalid. */
|
| - /* */
|
| - /* <Note> */
|
| - /* The last item in the array is~0; the array is owned by the */
|
| - /* @FT_Face object but can be overwritten or released on the next */
|
| - /* call to a FreeType function. */
|
| - /* */
|
| - /* <Since> */
|
| - /* 2.3.6 */
|
| - /* */
|
| - FT_EXPORT( FT_UInt32* )
|
| - FT_Face_GetCharsOfVariant( FT_Face face,
|
| - FT_ULong variantSelector );
|
| -
|
| -
|
| - /*************************************************************************/
|
| - /* */
|
| - /* <Section> */
|
| - /* computations */
|
| - /* */
|
| - /* <Title> */
|
| - /* Computations */
|
| - /* */
|
| - /* <Abstract> */
|
| - /* Crunching fixed numbers and vectors. */
|
| - /* */
|
| - /* <Description> */
|
| - /* This section contains various functions used to perform */
|
| - /* computations on 16.16 fixed-float numbers or 2d vectors. */
|
| - /* */
|
| - /* <Order> */
|
| - /* FT_MulDiv */
|
| - /* FT_MulFix */
|
| - /* FT_DivFix */
|
| - /* FT_RoundFix */
|
| - /* FT_CeilFix */
|
| - /* FT_FloorFix */
|
| - /* FT_Vector_Transform */
|
| - /* FT_Matrix_Multiply */
|
| - /* FT_Matrix_Invert */
|
| - /* */
|
| - /*************************************************************************/
|
| -
|
| -
|
| - /*************************************************************************/
|
| - /* */
|
| - /* <Function> */
|
| - /* FT_MulDiv */
|
| - /* */
|
| - /* <Description> */
|
| - /* A very simple function used to perform the computation `(a*b)/c' */
|
| - /* with maximum accuracy (it uses a 64-bit intermediate integer */
|
| - /* whenever necessary). */
|
| - /* */
|
| - /* This function isn't necessarily as fast as some processor specific */
|
| - /* operations, but is at least completely portable. */
|
| - /* */
|
| - /* <Input> */
|
| - /* a :: The first multiplier. */
|
| - /* b :: The second multiplier. */
|
| - /* c :: The divisor. */
|
| - /* */
|
| - /* <Return> */
|
| - /* The result of `(a*b)/c'. This function never traps when trying to */
|
| - /* divide by zero; it simply returns `MaxInt' or `MinInt' depending */
|
| - /* on the signs of `a' and `b'. */
|
| - /* */
|
| - FT_EXPORT( FT_Long )
|
| - FT_MulDiv( FT_Long a,
|
| - FT_Long b,
|
| - FT_Long c );
|
| -
|
| -
|
| - /*************************************************************************/
|
| - /* */
|
| - /* <Function> */
|
| - /* FT_MulFix */
|
| - /* */
|
| - /* <Description> */
|
| - /* A very simple function used to perform the computation */
|
| - /* `(a*b)/0x10000' with maximum accuracy. Most of the time this is */
|
| - /* used to multiply a given value by a 16.16 fixed-point factor. */
|
| - /* */
|
| - /* <Input> */
|
| - /* a :: The first multiplier. */
|
| - /* b :: The second multiplier. Use a 16.16 factor here whenever */
|
| - /* possible (see note below). */
|
| - /* */
|
| - /* <Return> */
|
| - /* The result of `(a*b)/0x10000'. */
|
| - /* */
|
| - /* <Note> */
|
| - /* This function has been optimized for the case where the absolute */
|
| - /* value of `a' is less than 2048, and `b' is a 16.16 scaling factor. */
|
| - /* As this happens mainly when scaling from notional units to */
|
| - /* fractional pixels in FreeType, it resulted in noticeable speed */
|
| - /* improvements between versions 2.x and 1.x. */
|
| - /* */
|
| - /* As a conclusion, always try to place a 16.16 factor as the */
|
| - /* _second_ argument of this function; this can make a great */
|
| - /* difference. */
|
| - /* */
|
| - FT_EXPORT( FT_Long )
|
| - FT_MulFix( FT_Long a,
|
| - FT_Long b );
|
| -
|
| -
|
| - /*************************************************************************/
|
| - /* */
|
| - /* <Function> */
|
| - /* FT_DivFix */
|
| - /* */
|
| - /* <Description> */
|
| - /* A very simple function used to perform the computation */
|
| - /* `(a*0x10000)/b' with maximum accuracy. Most of the time, this is */
|
| - /* used to divide a given value by a 16.16 fixed-point factor. */
|
| - /* */
|
| - /* <Input> */
|
| - /* a :: The numerator. */
|
| - /* b :: The denominator. Use a 16.16 factor here. */
|
| - /* */
|
| - /* <Return> */
|
| - /* The result of `(a*0x10000)/b'. */
|
| - /* */
|
| - FT_EXPORT( FT_Long )
|
| - FT_DivFix( FT_Long a,
|
| - FT_Long b );
|
| -
|
| -
|
| - /*************************************************************************/
|
| - /* */
|
| - /* <Function> */
|
| - /* FT_RoundFix */
|
| - /* */
|
| - /* <Description> */
|
| - /* A very simple function used to round a 16.16 fixed number. */
|
| - /* */
|
| - /* <Input> */
|
| - /* a :: The number to be rounded. */
|
| - /* */
|
| - /* <Return> */
|
| - /* The result of `(a + 0x8000) & -0x10000'. */
|
| - /* */
|
| - FT_EXPORT( FT_Fixed )
|
| - FT_RoundFix( FT_Fixed a );
|
| -
|
| -
|
| - /*************************************************************************/
|
| - /* */
|
| - /* <Function> */
|
| - /* FT_CeilFix */
|
| - /* */
|
| - /* <Description> */
|
| - /* A very simple function used to compute the ceiling function of a */
|
| - /* 16.16 fixed number. */
|
| - /* */
|
| - /* <Input> */
|
| - /* a :: The number for which the ceiling function is to be computed. */
|
| - /* */
|
| - /* <Return> */
|
| - /* The result of `(a + 0x10000 - 1) & -0x10000'. */
|
| - /* */
|
| - FT_EXPORT( FT_Fixed )
|
| - FT_CeilFix( FT_Fixed a );
|
| -
|
| -
|
| - /*************************************************************************/
|
| - /* */
|
| - /* <Function> */
|
| - /* FT_FloorFix */
|
| - /* */
|
| - /* <Description> */
|
| - /* A very simple function used to compute the floor function of a */
|
| - /* 16.16 fixed number. */
|
| - /* */
|
| - /* <Input> */
|
| - /* a :: The number for which the floor function is to be computed. */
|
| - /* */
|
| - /* <Return> */
|
| - /* The result of `a & -0x10000'. */
|
| - /* */
|
| - FT_EXPORT( FT_Fixed )
|
| - FT_FloorFix( FT_Fixed a );
|
| -
|
| -
|
| - /*************************************************************************/
|
| - /* */
|
| - /* <Function> */
|
| - /* FT_Vector_Transform */
|
| - /* */
|
| - /* <Description> */
|
| - /* Transform a single vector through a 2x2 matrix. */
|
| - /* */
|
| - /* <InOut> */
|
| - /* vector :: The target vector to transform. */
|
| - /* */
|
| - /* <Input> */
|
| - /* matrix :: A pointer to the source 2x2 matrix. */
|
| - /* */
|
| - /* <Note> */
|
| - /* The result is undefined if either `vector' or `matrix' is invalid. */
|
| - /* */
|
| - FT_EXPORT( void )
|
| - FT_Vector_Transform( FT_Vector* vec,
|
| - const FT_Matrix* matrix );
|
| -
|
| -
|
| - /*************************************************************************/
|
| - /* */
|
| - /* <Section> */
|
| - /* version */
|
| - /* */
|
| - /* <Title> */
|
| - /* FreeType Version */
|
| - /* */
|
| - /* <Abstract> */
|
| - /* Functions and macros related to FreeType versions. */
|
| - /* */
|
| - /* <Description> */
|
| - /* Note that those functions and macros are of limited use because */
|
| - /* even a new release of FreeType with only documentation changes */
|
| - /* increases the version number. */
|
| - /* */
|
| - /* <Order> */
|
| - /* FT_Library_Version */
|
| - /* */
|
| - /* FREETYPE_MAJOR */
|
| - /* FREETYPE_MINOR */
|
| - /* FREETYPE_PATCH */
|
| - /* */
|
| - /* FT_Face_CheckTrueTypePatents */
|
| - /* FT_Face_SetUnpatentedHinting */
|
| - /* */
|
| - /* FREETYPE_XXX */
|
| - /* */
|
| - /*************************************************************************/
|
| -
|
| -
|
| - /*************************************************************************
|
| - *
|
| - * @enum:
|
| - * FREETYPE_XXX
|
| - *
|
| - * @description:
|
| - * These three macros identify the FreeType source code version.
|
| - * Use @FT_Library_Version to access them at runtime.
|
| - *
|
| - * @values:
|
| - * FREETYPE_MAJOR :: The major version number.
|
| - * FREETYPE_MINOR :: The minor version number.
|
| - * FREETYPE_PATCH :: The patch level.
|
| - *
|
| - * @note:
|
| - * The version number of FreeType if built as a dynamic link library
|
| - * with the `libtool' package is _not_ controlled by these three
|
| - * macros.
|
| - *
|
| - */
|
| -#define FREETYPE_MAJOR 2
|
| -#define FREETYPE_MINOR 5
|
| -#define FREETYPE_PATCH 4
|
| -
|
| -
|
| - /*************************************************************************/
|
| - /* */
|
| - /* <Function> */
|
| - /* FT_Library_Version */
|
| - /* */
|
| - /* <Description> */
|
| - /* Return the version of the FreeType library being used. This is */
|
| - /* useful when dynamically linking to the library, since one cannot */
|
| - /* use the macros @FREETYPE_MAJOR, @FREETYPE_MINOR, and */
|
| - /* @FREETYPE_PATCH. */
|
| - /* */
|
| - /* <Input> */
|
| - /* library :: A source library handle. */
|
| - /* */
|
| - /* <Output> */
|
| - /* amajor :: The major version number. */
|
| - /* */
|
| - /* aminor :: The minor version number. */
|
| - /* */
|
| - /* apatch :: The patch version number. */
|
| - /* */
|
| - /* <Note> */
|
| - /* The reason why this function takes a `library' argument is because */
|
| - /* certain programs implement library initialization in a custom way */
|
| - /* that doesn't use @FT_Init_FreeType. */
|
| - /* */
|
| - /* In such cases, the library version might not be available before */
|
| - /* the library object has been created. */
|
| - /* */
|
| - FT_EXPORT( void )
|
| - FT_Library_Version( FT_Library library,
|
| - FT_Int *amajor,
|
| - FT_Int *aminor,
|
| - FT_Int *apatch );
|
| -
|
| -
|
| - /*************************************************************************/
|
| - /* */
|
| - /* <Function> */
|
| - /* FT_Face_CheckTrueTypePatents */
|
| - /* */
|
| - /* <Description> */
|
| - /* Parse all bytecode instructions of a TrueType font file to check */
|
| - /* whether any of the patented opcodes are used. This is only useful */
|
| - /* if you want to be able to use the unpatented hinter with */
|
| - /* fonts that do *not* use these opcodes. */
|
| - /* */
|
| - /* Note that this function parses *all* glyph instructions in the */
|
| - /* font file, which may be slow. */
|
| - /* */
|
| - /* <Input> */
|
| - /* face :: A face handle. */
|
| - /* */
|
| - /* <Return> */
|
| - /* 1~if this is a TrueType font that uses one of the patented */
|
| - /* opcodes, 0~otherwise. */
|
| - /* */
|
| - /* <Note> */
|
| - /* Since May 2010, TrueType hinting is no longer patented. */
|
| - /* */
|
| - /* <Since> */
|
| - /* 2.3.5 */
|
| - /* */
|
| - FT_EXPORT( FT_Bool )
|
| - FT_Face_CheckTrueTypePatents( FT_Face face );
|
| -
|
| -
|
| - /*************************************************************************/
|
| - /* */
|
| - /* <Function> */
|
| - /* FT_Face_SetUnpatentedHinting */
|
| - /* */
|
| - /* <Description> */
|
| - /* Enable or disable the unpatented hinter for a given face. */
|
| - /* Only enable it if you have determined that the face doesn't */
|
| - /* use any patented opcodes (see @FT_Face_CheckTrueTypePatents). */
|
| - /* */
|
| - /* <Input> */
|
| - /* face :: A face handle. */
|
| - /* */
|
| - /* value :: New boolean setting. */
|
| - /* */
|
| - /* <Return> */
|
| - /* The old setting value. This will always be false if this is not */
|
| - /* an SFNT font, or if the unpatented hinter is not compiled in this */
|
| - /* instance of the library. */
|
| - /* */
|
| - /* <Note> */
|
| - /* Since May 2010, TrueType hinting is no longer patented. */
|
| - /* */
|
| - /* <Since> */
|
| - /* 2.3.5 */
|
| - /* */
|
| - FT_EXPORT( FT_Bool )
|
| - FT_Face_SetUnpatentedHinting( FT_Face face,
|
| - FT_Bool value );
|
| -
|
| - /* */
|
| -
|
| -
|
| -FT_END_HEADER
|
| -
|
| -#endif /* __FREETYPE_H__ */
|
| -
|
| -
|
| -/* END */
|
|
|
Chromium Code Reviews
Issue 1416993005:
Merge to XFA: Update bundled freetype to 2.6.1 (Closed)
Base URL: https://pdfium.googlesource.com/pdfium.git@xfa