📄 ftobjs.h
字号:
/* */
/* glyph_delta :: The 2d translation vector corresponding to */
/* the glyph transformation, if necessary. */
/* */
/* glyph_hints :: Format-specific glyph hints management. */
/* */
#define FT_GLYPH_OWN_BITMAP 0x1
typedef struct FT_Slot_InternalRec_
{
FT_GlyphLoader loader;
FT_UInt flags;
FT_Bool glyph_transformed;
FT_Matrix glyph_matrix;
FT_Vector glyph_delta;
void* glyph_hints;
} FT_GlyphSlot_InternalRec;
/*************************************************************************/
/*************************************************************************/
/*************************************************************************/
/**** ****/
/**** ****/
/**** M O D U L E S ****/
/**** ****/
/**** ****/
/*************************************************************************/
/*************************************************************************/
/*************************************************************************/
/*************************************************************************/
/* */
/* <Struct> */
/* FT_ModuleRec */
/* */
/* <Description> */
/* A module object instance. */
/* */
/* <Fields> */
/* clazz :: A pointer to the module's class. */
/* */
/* library :: A handle to the parent library object. */
/* */
/* memory :: A handle to the memory manager. */
/* */
/* generic :: A generic structure for user-level extensibility (?). */
/* */
typedef struct FT_ModuleRec_
{
FT_Module_Class* clazz;
FT_Library library;
FT_Memory memory;
FT_Generic generic;
} FT_ModuleRec;
/* typecast an object to a FT_Module */
#define FT_MODULE( x ) ((FT_Module)( x ))
#define FT_MODULE_CLASS( x ) FT_MODULE( x )->clazz
#define FT_MODULE_LIBRARY( x ) FT_MODULE( x )->library
#define FT_MODULE_MEMORY( x ) FT_MODULE( x )->memory
#define FT_MODULE_IS_DRIVER( x ) ( FT_MODULE_CLASS( x )->module_flags & \
FT_MODULE_FONT_DRIVER )
#define FT_MODULE_IS_RENDERER( x ) ( FT_MODULE_CLASS( x )->module_flags & \
FT_MODULE_RENDERER )
#define FT_MODULE_IS_HINTER( x ) ( FT_MODULE_CLASS( x )->module_flags & \
FT_MODULE_HINTER )
#define FT_MODULE_IS_STYLER( x ) ( FT_MODULE_CLASS( x )->module_flags & \
FT_MODULE_STYLER )
#define FT_DRIVER_IS_SCALABLE( x ) ( FT_MODULE_CLASS( x )->module_flags & \
FT_MODULE_DRIVER_SCALABLE )
#define FT_DRIVER_USES_OUTLINES( x ) !( FT_MODULE_CLASS( x )->module_flags & \
FT_MODULE_DRIVER_NO_OUTLINES )
#define FT_DRIVER_HAS_HINTER( x ) ( FT_MODULE_CLASS( x )->module_flags & \
FT_MODULE_DRIVER_HAS_HINTER )
/*************************************************************************/
/* */
/* <Function> */
/* FT_Get_Module_Interface */
/* */
/* <Description> */
/* Finds a module and returns its specific interface as a typeless */
/* pointer. */
/* */
/* <Input> */
/* library :: A handle to the library object. */
/* */
/* module_name :: The module's name (as an ASCII string). */
/* */
/* <Return> */
/* A module-specific interface if available, 0 otherwise. */
/* */
/* <Note> */
/* You should better be familiar with FreeType internals to know */
/* which module to look for, and what its interface is :-) */
/* */
FT_BASE( const void* )
FT_Get_Module_Interface( FT_Library library,
const char* mod_name );
FT_BASE( FT_Pointer )
ft_module_get_service( FT_Module module,
const char* service_id );
/* */
/*************************************************************************/
/*************************************************************************/
/*************************************************************************/
/**** ****/
/**** ****/
/**** FACE, SIZE & GLYPH SLOT OBJECTS ****/
/**** ****/
/**** ****/
/*************************************************************************/
/*************************************************************************/
/*************************************************************************/
/* a few macros used to perform easy typecasts with minimal brain damage */
#define FT_FACE( x ) ((FT_Face)(x))
#define FT_SIZE( x ) ((FT_Size)(x))
#define FT_SLOT( x ) ((FT_GlyphSlot)(x))
#define FT_FACE_DRIVER( x ) FT_FACE( x )->driver
#define FT_FACE_LIBRARY( x ) FT_FACE_DRIVER( x )->root.library
#define FT_FACE_MEMORY( x ) FT_FACE( x )->memory
#define FT_FACE_STREAM( x ) FT_FACE( x )->stream
#define FT_SIZE_FACE( x ) FT_SIZE( x )->face
#define FT_SLOT_FACE( x ) FT_SLOT( x )->face
#define FT_FACE_SLOT( x ) FT_FACE( x )->glyph
#define FT_FACE_SIZE( x ) FT_FACE( x )->size
/*************************************************************************/
/* */
/* <Function> */
/* FT_New_GlyphSlot */
/* */
/* <Description> */
/* It is sometimes useful to have more than one glyph slot for a */
/* given face object. This function is used to create additional */
/* slots. All of them are automatically discarded when the face is */
/* destroyed. */
/* */
/* <Input> */
/* face :: A handle to a parent face object. */
/* */
/* <Output> */
/* aslot :: A handle to a new glyph slot object. */
/* */
/* <Return> */
/* FreeType error code. 0 means success. */
/* */
FT_BASE( FT_Error )
FT_New_GlyphSlot( FT_Face face,
FT_GlyphSlot *aslot );
/*************************************************************************/
/* */
/* <Function> */
/* FT_Done_GlyphSlot */
/* */
/* <Description> */
/* Destroys a given glyph slot. Remember however that all slots are */
/* automatically destroyed with its parent. Using this function is */
/* not always mandatory. */
/* */
/* <Input> */
/* slot :: A handle to a target glyph slot. */
/* */
FT_BASE( void )
FT_Done_GlyphSlot( FT_GlyphSlot slot );
/* */
#define FT_REQUEST_WIDTH( req ) \
( (req)->horiResolution \
? (FT_Pos)( (req)->width * (req)->horiResolution + 36 ) / 72 \
: (req)->width )
#define FT_REQUEST_HEIGHT( req ) \
( (req)->vertResolution \
? (FT_Pos)( (req)->height * (req)->vertResolution + 36 ) / 72 \
: (req)->height )
/* Set the metrics according to a bitmap strike. */
FT_BASE( void )
FT_Select_Metrics( FT_Face face,
FT_ULong strike_index );
/* Set the metrics according to a size request. */
FT_BASE( void )
FT_Request_Metrics( FT_Face face,
FT_Size_Request req );
/* Match a size request against `available_sizes'. */
FT_BASE( FT_Error )
FT_Match_Size( FT_Face face,
FT_Size_Request req,
FT_Bool ignore_width,
FT_ULong* size_index );
/* Use the horizontal metrics to synthesize the vertical metrics. */
/* If `advance' is zero, it is also synthesized. */
FT_BASE( void )
ft_synthesize_vertical_metrics( FT_Glyph_Metrics* metrics,
FT_Pos advance );
/* Free the bitmap of a given glyphslot when needed (i.e., only when it */
/* was allocated with ft_glyphslot_alloc_bitmap). */
FT_BASE( void )
ft_glyphslot_free_bitmap( FT_GlyphSlot slot );
/* Allocate a new bitmap buffer in a glyph slot. */
FT_BASE( FT_Error )
ft_glyphslot_alloc_bitmap( FT_GlyphSlot slot,
FT_ULong size );
/* Set the bitmap buffer in a glyph slot to a given pointer. The buffer */
/* will not be freed by a later call to ft_glyphslot_free_bitmap. */
FT_BASE( void )
ft_glyphslot_set_bitmap( FT_GlyphSlot slot,
FT_Byte* buffer );
/*************************************************************************/
/*************************************************************************/
/*************************************************************************/
/**** ****/
/**** ****/
/**** R E N D E R E R S ****/
/**** ****/
/**** ****/
/*************************************************************************/
/*************************************************************************/
/*************************************************************************/
#define FT_RENDERER( x ) ((FT_Renderer)( x ))
#define FT_GLYPH( x ) ((FT_Glyph)( x ))
#define FT_BITMAP_GLYPH( x ) ((FT_BitmapGlyph)( x ))
⌨️ 快捷键说明
复制代码
Ctrl + C
搜索代码
Ctrl + F
全屏模式
F11
切换主题
Ctrl + Shift + D
显示快捷键
?
增大字号
Ctrl + =
减小字号
Ctrl + -