third_party/freetype/include/internal/ftobjs.h - Issue 1416993005: Merge to XFA: Update bundled freetype to 2.6.1

Unified Diff: third_party/freetype/include/internal/ftobjs.h

Issue 1416993005: Merge to XFA: Update bundled freetype to 2.6.1 (Closed) Base URL: https://pdfium.googlesource.com/pdfium.git@xfa

Patch Set: Created 5 years, 1 month ago

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Index: third_party/freetype/include/internal/ftobjs.h

diff --git a/third_party/freetype/include/internal/ftobjs.h b/third_party/freetype/include/internal/ftobjs.h

deleted file mode 100644

index b45a5ed814f622e743d81c86f09c9292841d9f27..0000000000000000000000000000000000000000

--- a/third_party/freetype/include/internal/ftobjs.h

+++ /dev/null

@@ -1,1571 +0,0 @@

-/***************************************************************************/

-/* */

-/* ftobjs.h */

-/* */

-/* The FreeType private base classes (specification). */

-/* */

-/* 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. */

-/* */

-/***************************************************************************/

- /*************************************************************************/

- /* */

- /* This file contains the definition of all internal FreeType classes. */

- /* */

- /*************************************************************************/

-#ifndef __FTOBJS_H__

-#define __FTOBJS_H__

-#include <ft2build.h>

-#include FT_RENDER_H

-#include FT_SIZES_H

-#include FT_LCD_FILTER_H

-#include FT_INTERNAL_MEMORY_H

-#include FT_INTERNAL_GLYPH_LOADER_H

-#include FT_INTERNAL_DRIVER_H

-#include FT_INTERNAL_AUTOHINT_H

-#include FT_INTERNAL_SERVICE_H

-#include FT_INTERNAL_PIC_H

-#ifdef FT_CONFIG_OPTION_INCREMENTAL

-#include FT_INCREMENTAL_H

-#endif

-FT_BEGIN_HEADER

- /*************************************************************************/

- /* */

- /* Some generic definitions. */

- /* */

-#ifndef TRUE

-#define TRUE 1

-#endif

-#ifndef FALSE

-#define FALSE 0

-#endif

-#ifndef NULL

-#define NULL (void*)0

-#endif

- /*************************************************************************/

- /* */

- /* The min and max functions missing in C. As usual, be careful not to */

- /* write things like FT_MIN( a++, b++ ) to avoid side effects. */

- /* */

-#define FT_MIN( a, b ) ( (a) < (b) ? (a) : (b) )

-#define FT_MAX( a, b ) ( (a) > (b) ? (a) : (b) )

-#define FT_ABS( a ) ( (a) < 0 ? -(a) : (a) )

- /*

- * Approximate sqrt(x*x+y*y) using the `alpha max plus beta min'

- * algorithm. We use alpha = 1, beta = 3/8, giving us results with a

- * largest error less than 7% compared to the exact value.

- */

-#define FT_HYPOT( x, y ) \

- ( x = FT_ABS( x ), \

- y = FT_ABS( y ), \

- x > y ? x + ( 3 * y >> 3 ) \

- : y + ( 3 * x >> 3 ) )

-#define FT_PAD_FLOOR( x, n ) ( (x) & ~((n)-1) )

-#define FT_PAD_ROUND( x, n ) FT_PAD_FLOOR( (x) + ((n)/2), n )

-#define FT_PAD_CEIL( x, n ) FT_PAD_FLOOR( (x) + ((n)-1), n )

-#define FT_PIX_FLOOR( x ) ( (x) & ~63 )

-#define FT_PIX_ROUND( x ) FT_PIX_FLOOR( (x) + 32 )

-#define FT_PIX_CEIL( x ) FT_PIX_FLOOR( (x) + 63 )

- /*

- * character classification functions -- since these are used to parse

- * font files, we must not use those in <ctypes.h> which are

- * locale-dependent

- */

-#define ft_isdigit( x ) ( ( (unsigned)(x) - '0' ) < 10U )

-#define ft_isxdigit( x ) ( ( (unsigned)(x) - '0' ) < 10U || \

- ( (unsigned)(x) - 'a' ) < 6U || \

- ( (unsigned)(x) - 'A' ) < 6U )

- /* the next two macros assume ASCII representation */

-#define ft_isupper( x ) ( ( (unsigned)(x) - 'A' ) < 26U )

-#define ft_islower( x ) ( ( (unsigned)(x) - 'a' ) < 26U )

-#define ft_isalpha( x ) ( ft_isupper( x ) || ft_islower( x ) )

-#define ft_isalnum( x ) ( ft_isdigit( x ) || ft_isalpha( x ) )

- /*************************************************************************/

- /**** ****/

- /**** C H A R M A P S ****/

- /**** ****/

- /*************************************************************************/

- /* handle to internal charmap object */

- typedef struct FT_CMapRec_* FT_CMap;

- /* handle to charmap class structure */

- typedef const struct FT_CMap_ClassRec_* FT_CMap_Class;

- /* internal charmap object structure */

- typedef struct FT_CMapRec_

- {

- FT_CharMapRec charmap;

- FT_CMap_Class clazz;

- } FT_CMapRec;

- /* typecase any pointer to a charmap handle */

-#define FT_CMAP( x ) ((FT_CMap)( x ))

- /* obvious macros */

-#define FT_CMAP_PLATFORM_ID( x ) FT_CMAP( x )->charmap.platform_id

-#define FT_CMAP_ENCODING_ID( x ) FT_CMAP( x )->charmap.encoding_id

-#define FT_CMAP_ENCODING( x ) FT_CMAP( x )->charmap.encoding

-#define FT_CMAP_FACE( x ) FT_CMAP( x )->charmap.face

- /* class method definitions */

- typedef FT_Error

- (*FT_CMap_InitFunc)( FT_CMap cmap,

- FT_Pointer init_data );

- typedef void

- (*FT_CMap_DoneFunc)( FT_CMap cmap );

- typedef FT_UInt

- (*FT_CMap_CharIndexFunc)( FT_CMap cmap,

- FT_UInt32 char_code );

- typedef FT_UInt

- (*FT_CMap_CharNextFunc)( FT_CMap cmap,

- FT_UInt32 *achar_code );

- typedef FT_UInt

- (*FT_CMap_CharVarIndexFunc)( FT_CMap cmap,

- FT_CMap unicode_cmap,

- FT_UInt32 char_code,

- FT_UInt32 variant_selector );

- typedef FT_Bool

- (*FT_CMap_CharVarIsDefaultFunc)( FT_CMap cmap,

- FT_UInt32 char_code,

- FT_UInt32 variant_selector );

- typedef FT_UInt32 *

- (*FT_CMap_VariantListFunc)( FT_CMap cmap,

- FT_Memory mem );

- typedef FT_UInt32 *

- (*FT_CMap_CharVariantListFunc)( FT_CMap cmap,

- FT_Memory mem,

- FT_UInt32 char_code );

- typedef FT_UInt32 *

- (*FT_CMap_VariantCharListFunc)( FT_CMap cmap,

- FT_Memory mem,

- FT_UInt32 variant_selector );

- typedef struct FT_CMap_ClassRec_

- {

- FT_ULong size;

- FT_CMap_InitFunc init;

- FT_CMap_DoneFunc done;

- FT_CMap_CharIndexFunc char_index;

- FT_CMap_CharNextFunc char_next;

- /* Subsequent entries are special ones for format 14 -- the variant */

- /* selector subtable which behaves like no other */

- FT_CMap_CharVarIndexFunc char_var_index;

- FT_CMap_CharVarIsDefaultFunc char_var_default;

- FT_CMap_VariantListFunc variant_list;

- FT_CMap_CharVariantListFunc charvariant_list;

- FT_CMap_VariantCharListFunc variantchar_list;

- } FT_CMap_ClassRec;

-#ifndef FT_CONFIG_OPTION_PIC

-#define FT_DECLARE_CMAP_CLASS( class_ ) \

- FT_CALLBACK_TABLE const FT_CMap_ClassRec class_;

-#define FT_DEFINE_CMAP_CLASS( \

- class_, \

- size_, \

- init_, \

- done_, \

- char_index_, \

- char_next_, \

- char_var_index_, \

- char_var_default_, \

- variant_list_, \

- charvariant_list_, \

- variantchar_list_ ) \

- FT_CALLBACK_TABLE_DEF \

- const FT_CMap_ClassRec class_ = \

- { \

- size_, \

- init_, \

- done_, \

- char_index_, \

- char_next_, \

- char_var_index_, \

- char_var_default_, \

- variant_list_, \

- charvariant_list_, \

- variantchar_list_ \

- };

-#else /* FT_CONFIG_OPTION_PIC */

-#define FT_DECLARE_CMAP_CLASS( class_ ) \

- void \

- FT_Init_Class_ ## class_( FT_Library library, \

- FT_CMap_ClassRec* clazz );

-#define FT_DEFINE_CMAP_CLASS( \

- class_, \

- size_, \

- init_, \

- done_, \

- char_index_, \

- char_next_, \

- char_var_index_, \

- char_var_default_, \

- variant_list_, \

- charvariant_list_, \

- variantchar_list_ ) \

- void \

- FT_Init_Class_ ## class_( FT_Library library, \

- FT_CMap_ClassRec* clazz ) \

- { \

- FT_UNUSED( library ); \

- \

- clazz->size = size_; \

- clazz->init = init_; \

- clazz->done = done_; \

- clazz->char_index = char_index_; \

- clazz->char_next = char_next_; \

- clazz->char_var_index = char_var_index_; \

- clazz->char_var_default = char_var_default_; \

- clazz->variant_list = variant_list_; \

- clazz->charvariant_list = charvariant_list_; \

- clazz->variantchar_list = variantchar_list_; \

- }

-#endif /* FT_CONFIG_OPTION_PIC */

- /* create a new charmap and add it to charmap->face */

- FT_BASE( FT_Error )

- FT_CMap_New( FT_CMap_Class clazz,

- FT_Pointer init_data,

- FT_CharMap charmap,

- FT_CMap *acmap );

- /* destroy a charmap and remove it from face's list */

- FT_BASE( void )

- FT_CMap_Done( FT_CMap cmap );

- /*************************************************************************/

- /* */

- /* <Struct> */

- /* FT_Face_InternalRec */

- /* */

- /* <Description> */

- /* This structure contains the internal fields of each FT_Face */

- /* object. These fields may change between different releases of */

- /* FreeType. */

- /* */

- /* <Fields> */

- /* max_points :: */

- /* The maximum number of points used to store the vectorial outline */

- /* of any glyph in this face. If this value cannot be known in */

- /* advance, or if the face isn't scalable, this should be set to 0. */

- /* Only relevant for scalable formats. */

- /* */

- /* max_contours :: */

- /* The maximum number of contours used to store the vectorial */

- /* outline of any glyph in this face. If this value cannot be */

- /* known in advance, or if the face isn't scalable, this should be */

- /* set to 0. Only relevant for scalable formats. */

- /* */

- /* transform_matrix :: */

- /* A 2x2 matrix of 16.16 coefficients used to transform glyph */

- /* outlines after they are loaded from the font. Only used by the */

- /* convenience functions. */

- /* */

- /* transform_delta :: */

- /* A translation vector used to transform glyph outlines after they */

- /* are loaded from the font. Only used by the convenience */

- /* functions. */

- /* */

- /* transform_flags :: */

- /* Some flags used to classify the transform. Only used by the */

- /* convenience functions. */

- /* */

- /* services :: */

- /* A cache for frequently used services. It should be only */

- /* accessed with the macro `FT_FACE_LOOKUP_SERVICE'. */

- /* */

- /* incremental_interface :: */

- /* If non-null, the interface through which glyph data and metrics */

- /* are loaded incrementally for faces that do not provide all of */

- /* this data when first opened. This field exists only if */

- /* @FT_CONFIG_OPTION_INCREMENTAL is defined. */

- /* */

- /* ignore_unpatented_hinter :: */

- /* This boolean flag instructs the glyph loader to ignore the */

- /* native font hinter, if one is found. This is exclusively used */

- /* in the case when the unpatented hinter is compiled within the */

- /* library. */

- /* */

- /* refcount :: */

- /* A counter initialized to~1 at the time an @FT_Face structure is */

- /* created. @FT_Reference_Face increments this counter, and */

- /* @FT_Done_Face only destroys a face if the counter is~1, */

- /* otherwise it simply decrements it. */

- /* */

- typedef struct FT_Face_InternalRec_

- {

- FT_Matrix transform_matrix;

- FT_Vector transform_delta;

- FT_Int transform_flags;

- FT_ServiceCacheRec services;

-#ifdef FT_CONFIG_OPTION_INCREMENTAL

- FT_Incremental_InterfaceRec* incremental_interface;

-#endif

- FT_Bool ignore_unpatented_hinter;

- FT_Int refcount;

- } FT_Face_InternalRec;

- /*************************************************************************/

- /* */

- /* <Struct> */

- /* FT_Slot_InternalRec */

- /* */

- /* <Description> */

- /* This structure contains the internal fields of each FT_GlyphSlot */

- /* object. These fields may change between different releases of */

- /* FreeType. */

- /* */

- /* <Fields> */

- /* loader :: The glyph loader object used to load outlines */

- /* into the glyph slot. */

- /* */

- /* flags :: Possible values are zero or */

- /* FT_GLYPH_OWN_BITMAP. The latter indicates */

- /* that the FT_GlyphSlot structure owns the */

- /* bitmap buffer. */

- /* */

- /* glyph_transformed :: Boolean. Set to TRUE when the loaded glyph */

- /* must be transformed through a specific */

- /* font transformation. This is _not_ the same */

- /* as the face transform set through */

- /* FT_Set_Transform(). */

- /* */

- /* glyph_matrix :: The 2x2 matrix corresponding to the glyph */

- /* transformation, if necessary. */

- /* */

- /* 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;

-#if 0

- /*************************************************************************/

- /* */

- /* <Struct> */

- /* FT_Size_InternalRec */

- /* */

- /* <Description> */

- /* This structure contains the internal fields of each FT_Size */

- /* object. Currently, it's empty. */

- /* */

- /*************************************************************************/

- typedef struct FT_Size_InternalRec_

- {

- /* empty */

- } FT_Size_InternalRec;

-#endif

- /*************************************************************************/

- /**** ****/

- /**** 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. */

- /* */

- typedef struct FT_ModuleRec_

- {

- FT_Module_Class* clazz;

- FT_Library library;

- FT_Memory memory;

- } FT_ModuleRec;

- /* typecast an object to an 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 );

- /* */

- /*************************************************************************/

- /**** ****/

- /**** F A C E, S I Z E & G L Y P H S L O T O B J E C T S ****/

- /**** ****/

- /*************************************************************************/

- /* 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 ))

-#define FT_OUTLINE_GLYPH( x ) ((FT_OutlineGlyph)( x ))

- typedef struct FT_RendererRec_

- {

- FT_ModuleRec root;

- FT_Renderer_Class* clazz;

- FT_Glyph_Format glyph_format;

- FT_Glyph_Class glyph_class;

- FT_Raster raster;

- FT_Raster_Render_Func raster_render;

- FT_Renderer_RenderFunc render;

- } FT_RendererRec;

- /*************************************************************************/

- /**** ****/

- /**** F O N T D R I V E R S ****/

- /**** ****/

- /*************************************************************************/

- /* typecast a module into a driver easily */

-#define FT_DRIVER( x ) ((FT_Driver)(x))

- /* typecast a module as a driver, and get its driver class */

-#define FT_DRIVER_CLASS( x ) FT_DRIVER( x )->clazz

- /*************************************************************************/

- /* */

- /* <Struct> */

- /* FT_DriverRec */

- /* */

- /* <Description> */

- /* The root font driver class. A font driver is responsible for */

- /* managing and loading font files of a given format. */

- /* */

- /* <Fields> */

- /* root :: Contains the fields of the root module class. */

- /* */

- /* clazz :: A pointer to the font driver's class. Note that */

- /* this is NOT root.clazz. `class' wasn't used */

- /* as it is a reserved word in C++. */

- /* */

- /* faces_list :: The list of faces currently opened by this */

- /* driver. */

- /* */

- /* glyph_loader :: The glyph loader for all faces managed by this */

- /* driver. This object isn't defined for unscalable */

- /* formats. */

- /* */

- typedef struct FT_DriverRec_

- {

- FT_ModuleRec root;

- FT_Driver_Class clazz;

- FT_ListRec faces_list;

- FT_GlyphLoader glyph_loader;

- } FT_DriverRec;

- /*************************************************************************/

- /**** ****/

- /**** L I B R A R I E S ****/

- /**** ****/

- /*************************************************************************/

- /* This hook is used by the TrueType debugger. It must be set to an */

- /* alternate truetype bytecode interpreter function. */

-#define FT_DEBUG_HOOK_TRUETYPE 0

- /* Set this debug hook to a non-null pointer to force unpatented hinting */

- /* for all faces when both TT_USE_BYTECODE_INTERPRETER and */

- /* TT_CONFIG_OPTION_UNPATENTED_HINTING are defined. This is only used */

- /* during debugging. */

-#define FT_DEBUG_HOOK_UNPATENTED_HINTING 1

- typedef void (*FT_Bitmap_LcdFilterFunc)( FT_Bitmap* bitmap,

- FT_Render_Mode render_mode,

- FT_Library library );

- /*************************************************************************/

- /* */

- /* <Struct> */

- /* FT_LibraryRec */

- /* */

- /* <Description> */

- /* The FreeType library class. This is the root of all FreeType */

- /* data. Use FT_New_Library() to create a library object, and */

- /* FT_Done_Library() to discard it and all child objects. */

- /* */

- /* <Fields> */

- /* memory :: The library's memory object. Manages memory */

- /* allocation. */

- /* */

- /* version_major :: The major version number of the library. */

- /* */

- /* version_minor :: The minor version number of the library. */

- /* */

- /* version_patch :: The current patch level of the library. */

- /* */

- /* num_modules :: The number of modules currently registered */

- /* within this library. This is set to 0 for new */

- /* libraries. New modules are added through the */

- /* FT_Add_Module() API function. */

- /* */

- /* modules :: A table used to store handles to the currently */

- /* registered modules. Note that each font driver */

- /* contains a list of its opened faces. */

- /* */

- /* renderers :: The list of renderers currently registered */

- /* within the library. */

- /* */

- /* cur_renderer :: The current outline renderer. This is a */

- /* shortcut used to avoid parsing the list on */

- /* each call to FT_Outline_Render(). It is a */

- /* handle to the current renderer for the */

- /* FT_GLYPH_FORMAT_OUTLINE format. */

- /* */

- /* auto_hinter :: XXX */

- /* */

- /* raster_pool :: The raster object's render pool. This can */

- /* ideally be changed dynamically at run-time. */

- /* */

- /* raster_pool_size :: The size of the render pool in bytes. */

- /* */

- /* debug_hooks :: XXX */

- /* */

- /* lcd_filter :: If subpixel rendering is activated, the */

- /* selected LCD filter mode. */

- /* */

- /* lcd_extra :: If subpixel rendering is activated, the number */

- /* of extra pixels needed for the LCD filter. */

- /* */

- /* lcd_weights :: If subpixel rendering is activated, the LCD */

- /* filter weights, if any. */

- /* */

- /* lcd_filter_func :: If subpixel rendering is activated, the LCD */

- /* filtering callback function. */

- /* */

- /* pic_container :: Contains global structs and tables, instead */

- /* of defining them globallly. */

- /* */

- /* refcount :: A counter initialized to~1 at the time an */

- /* @FT_Library structure is created. */

- /* @FT_Reference_Library increments this counter, */

- /* and @FT_Done_Library only destroys a library */

- /* if the counter is~1, otherwise it simply */

- /* decrements it. */

- /* */

- typedef struct FT_LibraryRec_

- {

- FT_Memory memory; /* library's memory manager */

- FT_Int version_major;

- FT_Int version_minor;

- FT_Int version_patch;

- FT_UInt num_modules;

- FT_Module modules[FT_MAX_MODULES]; /* module objects */

- FT_ListRec renderers; /* list of renderers */

- FT_Renderer cur_renderer; /* current outline renderer */

- FT_Module auto_hinter;

- FT_Byte* raster_pool; /* scan-line conversion */

- /* render pool */

- FT_ULong raster_pool_size; /* size of render pool in bytes */

- FT_DebugHook_Func debug_hooks[4];

-#ifdef FT_CONFIG_OPTION_SUBPIXEL_RENDERING

- FT_LcdFilter lcd_filter;

- FT_Int lcd_extra; /* number of extra pixels */

- FT_Byte lcd_weights[7]; /* filter weights, if any */

- FT_Bitmap_LcdFilterFunc lcd_filter_func; /* filtering callback */

-#endif

-#ifdef FT_CONFIG_OPTION_PIC

- FT_PIC_Container pic_container;

-#endif

- FT_Int refcount;

- } FT_LibraryRec;

- FT_BASE( FT_Renderer )

- FT_Lookup_Renderer( FT_Library library,

- FT_Glyph_Format format,

- FT_ListNode* node );

- FT_BASE( FT_Error )

- FT_Render_Glyph_Internal( FT_Library library,

- FT_GlyphSlot slot,

- FT_Render_Mode render_mode );

- typedef const char*

- (*FT_Face_GetPostscriptNameFunc)( FT_Face face );

- typedef FT_Error

- (*FT_Face_GetGlyphNameFunc)( FT_Face face,

- FT_UInt glyph_index,

- FT_Pointer buffer,

- FT_UInt buffer_max );

- typedef FT_UInt

- (*FT_Face_GetGlyphNameIndexFunc)( FT_Face face,

- FT_String* glyph_name );

-#ifndef FT_CONFIG_OPTION_NO_DEFAULT_SYSTEM

- /*************************************************************************/

- /* */

- /* <Function> */

- /* FT_New_Memory */

- /* */

- /* <Description> */

- /* Creates a new memory object. */

- /* */

- /* <Return> */

- /* A pointer to the new memory object. 0 in case of error. */

- /* */

- FT_BASE( FT_Memory )

- FT_New_Memory( void );

- /*************************************************************************/

- /* */

- /* <Function> */

- /* FT_Done_Memory */

- /* */

- /* <Description> */

- /* Discards memory manager. */

- /* */

- /* <Input> */

- /* memory :: A handle to the memory manager. */

- /* */

- FT_BASE( void )

- FT_Done_Memory( FT_Memory memory );

-#endif /* !FT_CONFIG_OPTION_NO_DEFAULT_SYSTEM */

- /* Define default raster's interface. The default raster is located in */

- /* `src/base/ftraster.c'. */

- /* */

- /* Client applications can register new rasters through the */

- /* FT_Set_Raster() API. */

-#ifndef FT_NO_DEFAULT_RASTER

- FT_EXPORT_VAR( FT_Raster_Funcs ) ft_default_raster;

-#endif

- /*************************************************************************/

- /**** ****/

- /**** P I C S U P P O R T ****/

- /**** ****/

- /*************************************************************************/

- /* PIC support macros for ftimage.h */

- /*************************************************************************/

- /* */

- /* <Macro> */

- /* FT_DEFINE_OUTLINE_FUNCS */

- /* */

- /* <Description> */

- /* Used to initialize an instance of FT_Outline_Funcs struct. */

- /* When FT_CONFIG_OPTION_PIC is defined an init funtion will need to */

- /* be called with a pre-allocated structure to be filled. */

- /* When FT_CONFIG_OPTION_PIC is not defined the struct will be */

- /* allocated in the global scope (or the scope where the macro */

- /* is used). */

- /* */

-#ifndef FT_CONFIG_OPTION_PIC

-#define FT_DEFINE_OUTLINE_FUNCS( \

- class_, \

- move_to_, \

- line_to_, \

- conic_to_, \

- cubic_to_, \

- shift_, \

- delta_ ) \

- static const FT_Outline_Funcs class_ = \

- { \

- move_to_, \

- line_to_, \

- conic_to_, \

- cubic_to_, \

- shift_, \

- delta_ \

- };

-#else /* FT_CONFIG_OPTION_PIC */

-#define FT_DEFINE_OUTLINE_FUNCS( \

- class_, \

- move_to_, \

- line_to_, \

- conic_to_, \

- cubic_to_, \

- shift_, \

- delta_ ) \

- static FT_Error \

- Init_Class_ ## class_( FT_Outline_Funcs* clazz ) \

- { \

- clazz->move_to = move_to_; \

- clazz->line_to = line_to_; \

- clazz->conic_to = conic_to_; \

- clazz->cubic_to = cubic_to_; \

- clazz->shift = shift_; \

- clazz->delta = delta_; \

- \

- return FT_Err_Ok; \

- }

-#endif /* FT_CONFIG_OPTION_PIC */

- /*************************************************************************/

- /* */

- /* <Macro> */

- /* FT_DEFINE_RASTER_FUNCS */

- /* */

- /* <Description> */

- /* Used to initialize an instance of FT_Raster_Funcs struct. */

- /* When FT_CONFIG_OPTION_PIC is defined an init funtion will need to */

- /* be called with a pre-allocated structure to be filled. */

- /* When FT_CONFIG_OPTION_PIC is not defined the struct will be */

- /* allocated in the global scope (or the scope where the macro */

- /* is used). */

- /* */

-#ifndef FT_CONFIG_OPTION_PIC

-#define FT_DEFINE_RASTER_FUNCS( \

- class_, \

- glyph_format_, \

- raster_new_, \

- raster_reset_, \

- raster_set_mode_, \

- raster_render_, \

- raster_done_ ) \

- const FT_Raster_Funcs class_ = \

- { \

- glyph_format_, \

- raster_new_, \

- raster_reset_, \

- raster_set_mode_, \

- raster_render_, \

- raster_done_ \

- };

-#else /* FT_CONFIG_OPTION_PIC */

-#define FT_DEFINE_RASTER_FUNCS( \

- class_, \

- glyph_format_, \

- raster_new_, \

- raster_reset_, \

- raster_set_mode_, \

- raster_render_, \

- raster_done_ ) \

- void \

- FT_Init_Class_ ## class_( FT_Raster_Funcs* clazz ) \

- { \

- clazz->glyph_format = glyph_format_; \

- clazz->raster_new = raster_new_; \

- clazz->raster_reset = raster_reset_; \

- clazz->raster_set_mode = raster_set_mode_; \

- clazz->raster_render = raster_render_; \

- clazz->raster_done = raster_done_; \

- }

-#endif /* FT_CONFIG_OPTION_PIC */

- /* PIC support macros for ftrender.h */

- /*************************************************************************/

- /* */

- /* <Macro> */

- /* FT_DEFINE_GLYPH */

- /* */

- /* <Description> */

- /* Used to initialize an instance of FT_Glyph_Class struct. */

- /* When FT_CONFIG_OPTION_PIC is defined an init funtion will need to */

- /* be called with a pre-allocated stcture to be filled. */

- /* When FT_CONFIG_OPTION_PIC is not defined the struct will be */

- /* allocated in the global scope (or the scope where the macro */

- /* is used). */

- /* */

-#ifndef FT_CONFIG_OPTION_PIC

-#define FT_DEFINE_GLYPH( \

- class_, \

- size_, \

- format_, \

- init_, \

- done_, \

- copy_, \

- transform_, \

- bbox_, \

- prepare_ ) \

- FT_CALLBACK_TABLE_DEF \

- const FT_Glyph_Class class_ = \

- { \

- size_, \

- format_, \

- init_, \

- done_, \

- copy_, \

- transform_, \

- bbox_, \

- prepare_ \

- };

-#else /* FT_CONFIG_OPTION_PIC */

-#define FT_DEFINE_GLYPH( \

- class_, \

- size_, \

- format_, \

- init_, \

- done_, \

- copy_, \

- transform_, \

- bbox_, \

- prepare_ ) \

- void \

- FT_Init_Class_ ## class_( FT_Glyph_Class* clazz ) \

- { \

- clazz->glyph_size = size_; \

- clazz->glyph_format = format_; \

- clazz->glyph_init = init_; \

- clazz->glyph_done = done_; \

- clazz->glyph_copy = copy_; \

- clazz->glyph_transform = transform_; \

- clazz->glyph_bbox = bbox_; \

- clazz->glyph_prepare = prepare_; \

- }

-#endif /* FT_CONFIG_OPTION_PIC */

- /*************************************************************************/

- /* */

- /* <Macro> */

- /* FT_DECLARE_RENDERER */

- /* */

- /* <Description> */

- /* Used to create a forward declaration of a */

- /* FT_Renderer_Class struct instance. */

- /* */

- /* <Macro> */

- /* FT_DEFINE_RENDERER */

- /* */

- /* <Description> */

- /* Used to initialize an instance of FT_Renderer_Class struct. */

- /* */

- /* When FT_CONFIG_OPTION_PIC is defined a `create' funtion will need */

- /* to be called with a pointer where the allocated structure is */

- /* returned. And when it is no longer needed a `destroy' function */

- /* needs to be called to release that allocation. */

- /* `fcinit.c' (ft_create_default_module_classes) already contains */

- /* a mechanism to call these functions for the default modules */

- /* described in `ftmodule.h'. */

- /* */

- /* Notice that the created `create' and `destroy' functions call */

- /* `pic_init' and `pic_free' to allow you to manually allocate and */

- /* initialize any additional global data, like a module specific */

- /* interface, and put them in the global pic container defined in */

- /* `ftpic.h'. If you don't need them just implement the functions as */

- /* empty to resolve the link error. Also the `pic_init' and */

- /* `pic_free' functions should be declared in `pic.h', to be referred */

- /* by the renderer definition calling `FT_DEFINE_RENDERER' in the */

- /* following. */

- /* */

- /* When FT_CONFIG_OPTION_PIC is not defined the struct will be */

- /* allocated in the global scope (or the scope where the macro */

- /* is used). */

- /* */

-#ifndef FT_CONFIG_OPTION_PIC

-#define FT_DECLARE_RENDERER( class_ ) \

- FT_EXPORT_VAR( const FT_Renderer_Class ) class_;

-#define FT_DEFINE_RENDERER( \

- class_, \

- flags_, \

- size_, \

- name_, \

- version_, \

- requires_, \

- interface_, \

- init_, \

- done_, \

- get_interface_, \

- glyph_format_, \

- render_glyph_, \

- transform_glyph_, \

- get_glyph_cbox_, \

- set_mode_, \

- raster_class_ ) \

- FT_CALLBACK_TABLE_DEF \

- const FT_Renderer_Class class_ = \

- { \

- FT_DEFINE_ROOT_MODULE( flags_, \

- size_, \

- name_, \

- version_, \

- requires_, \

- interface_, \

- init_, \

- done_, \

- get_interface_ ) \

- glyph_format_, \

- \

- render_glyph_, \

- transform_glyph_, \

- get_glyph_cbox_, \

- set_mode_, \

- \

- raster_class_ \

- };

-#else /* FT_CONFIG_OPTION_PIC */

-#define FT_DECLARE_RENDERER( class_ ) FT_DECLARE_MODULE( class_ )

-#define FT_DEFINE_RENDERER( \

- class_, \

- flags_, \

- size_, \

- name_, \

- version_, \

- requires_, \

- interface_, \

- init_, \

- done_, \

- get_interface_, \

- glyph_format_, \

- render_glyph_, \

- transform_glyph_, \

- get_glyph_cbox_, \

- set_mode_, \

- raster_class_ ) \

- void \

- FT_Destroy_Class_ ## class_( FT_Library library, \

- FT_Module_Class* clazz ) \

- { \

- FT_Renderer_Class* rclazz = (FT_Renderer_Class*)clazz; \

- FT_Memory memory = library->memory; \

- \

- class_ ## _pic_free( library ); \

- if ( rclazz ) \

- FT_FREE( rclazz ); \

- } \

- \

- FT_Error \

- FT_Create_Class_ ## class_( FT_Library library, \

- FT_Module_Class** output_class ) \

- { \

- FT_Renderer_Class* clazz = NULL; \

- FT_Error error; \

- FT_Memory memory = library->memory; \

- \

- if ( FT_ALLOC( clazz, sizeof ( *clazz ) ) ) \

- return error; \

- \

- error = class_ ## _pic_init( library ); \

- if ( error ) \

- { \

- FT_FREE( clazz ); \

- return error; \

- } \

- \

- FT_DEFINE_ROOT_MODULE( flags_, \

- size_, \

- name_, \

- version_, \

- requires_, \

- interface_, \

- init_, \

- done_, \

- get_interface_ ) \

- \

- clazz->glyph_format = glyph_format_; \

- \

- clazz->render_glyph = render_glyph_; \

- clazz->transform_glyph = transform_glyph_; \

- clazz->get_glyph_cbox = get_glyph_cbox_; \

- clazz->set_mode = set_mode_; \

- \

- clazz->raster_class = raster_class_; \

- \

- *output_class = (FT_Module_Class*)clazz; \

- \

- return FT_Err_Ok; \

- }

-#endif /* FT_CONFIG_OPTION_PIC */

- /* PIC support macros for ftmodapi.h **/

-#ifdef FT_CONFIG_OPTION_PIC

- /*************************************************************************/

- /* */

- /* <FuncType> */

- /* FT_Module_Creator */

- /* */

- /* <Description> */

- /* A function used to create (allocate) a new module class object. */

- /* The object's members are initialized, but the module itself is */

- /* not. */

- /* */

- /* <Input> */

- /* memory :: A handle to the memory manager. */

- /* output_class :: Initialized with the newly allocated class. */

- /* */

- typedef FT_Error

- (*FT_Module_Creator)( FT_Memory memory,

- FT_Module_Class** output_class );

- /*************************************************************************/

- /* */

- /* <FuncType> */

- /* FT_Module_Destroyer */

- /* */

- /* <Description> */

- /* A function used to destroy (deallocate) a module class object. */

- /* */

- /* <Input> */

- /* memory :: A handle to the memory manager. */

- /* clazz :: Module class to destroy. */

- /* */

- typedef void

- (*FT_Module_Destroyer)( FT_Memory memory,

- FT_Module_Class* clazz );

-#endif

- /*************************************************************************/

- /* */

- /* <Macro> */

- /* FT_DECLARE_MODULE */

- /* */

- /* <Description> */

- /* Used to create a forward declaration of a */

- /* FT_Module_Class struct instance. */

- /* */

- /* <Macro> */

- /* FT_DEFINE_MODULE */

- /* */

- /* <Description> */

- /* Used to initialize an instance of an FT_Module_Class struct. */

- /* */

- /* When FT_CONFIG_OPTION_PIC is defined a `create' funtion needs to */

- /* be called with a pointer where the allocated structure is */

- /* returned. And when it is no longer needed a `destroy' function */

- /* needs to be called to release that allocation. */

- /* `fcinit.c' (ft_create_default_module_classes) already contains */

- /* a mechanism to call these functions for the default modules */

- /* described in `ftmodule.h'. */

- /* */

- /* Notice that the created `create' and `destroy' functions call */

- /* `pic_init' and `pic_free' to allow you to manually allocate and */

- /* initialize any additional global data, like a module specific */

- /* interface, and put them in the global pic container defined in */

- /* `ftpic.h'. If you don't need them just implement the functions as */

- /* empty to resolve the link error. Also the `pic_init' and */

- /* `pic_free' functions should be declared in `pic.h', to be referred */

- /* by the module definition calling `FT_DEFINE_MODULE' in the */

- /* following. */

- /* */

- /* When FT_CONFIG_OPTION_PIC is not defined the struct will be */

- /* allocated in the global scope (or the scope where the macro */

- /* is used). */

- /* */

- /* <Macro> */

- /* FT_DEFINE_ROOT_MODULE */

- /* */

- /* <Description> */

- /* Used to initialize an instance of an FT_Module_Class struct inside */

- /* another struct that contains it or in a function that initializes */

- /* that containing struct. */

- /* */

-#ifndef FT_CONFIG_OPTION_PIC

-#define FT_DECLARE_MODULE( class_ ) \

- FT_CALLBACK_TABLE \

- const FT_Module_Class class_;

-#define FT_DEFINE_ROOT_MODULE( \

- flags_, \

- size_, \

- name_, \

- version_, \

- requires_, \

- interface_, \

- init_, \

- done_, \

- get_interface_ ) \

- { \

- flags_, \

- size_, \

- \

- name_, \

- version_, \

- requires_, \

- \

- interface_, \

- \

- init_, \

- done_, \

- get_interface_, \

- },

-#define FT_DEFINE_MODULE( \

- class_, \

- flags_, \

- size_, \

- name_, \

- version_, \

- requires_, \

- interface_, \

- init_, \

- done_, \

- get_interface_ ) \

- FT_CALLBACK_TABLE_DEF \

- const FT_Module_Class class_ = \

- { \

- flags_, \

- size_, \

- \

- name_, \

- version_, \

- requires_, \

- \

- interface_, \

- \

- init_, \

- done_, \

- get_interface_, \

- };

-#else /* FT_CONFIG_OPTION_PIC */

-#define FT_DECLARE_MODULE( class_ ) \

- FT_Error \

- FT_Create_Class_ ## class_( FT_Library library, \

- FT_Module_Class** output_class ); \

- void \

- FT_Destroy_Class_ ## class_( FT_Library library, \

- FT_Module_Class* clazz );

-#define FT_DEFINE_ROOT_MODULE( \

- flags_, \

- size_, \

- name_, \

- version_, \

- requires_, \

- interface_, \

- init_, \

- done_, \

- get_interface_ ) \

- clazz->root.module_flags = flags_; \

- clazz->root.module_size = size_; \

- clazz->root.module_name = name_; \

- clazz->root.module_version = version_; \

- clazz->root.module_requires = requires_; \

- \

- clazz->root.module_interface = interface_; \

- \

- clazz->root.module_init = init_; \

- clazz->root.module_done = done_; \

- clazz->root.get_interface = get_interface_;

-#define FT_DEFINE_MODULE( \

- class_, \

- flags_, \

- size_, \

- name_, \

- version_, \

- requires_, \

- interface_, \

- init_, \

- done_, \

- get_interface_ ) \

- void \

- FT_Destroy_Class_ ## class_( FT_Library library, \

- FT_Module_Class* clazz ) \

- { \

- FT_Memory memory = library->memory; \

- \

- class_ ## _pic_free( library ); \

- if ( clazz ) \

- FT_FREE( clazz ); \

- } \

- \

- FT_Error \

- FT_Create_Class_ ## class_( FT_Library library, \

- FT_Module_Class** output_class ) \

- { \

- FT_Memory memory = library->memory; \

- FT_Module_Class* clazz = NULL; \

- FT_Error error; \

- \

- if ( FT_ALLOC( clazz, sizeof ( *clazz ) ) ) \

- return error; \

- error = class_ ## _pic_init( library ); \

- if ( error ) \

- { \

- FT_FREE( clazz ); \

- return error; \

- } \

- \

- clazz->module_flags = flags_; \

- clazz->module_size = size_; \

- clazz->module_name = name_; \

- clazz->module_version = version_; \

- clazz->module_requires = requires_; \

- \

- clazz->module_interface = interface_; \

- \

- clazz->module_init = init_; \

- clazz->module_done = done_; \

- clazz->get_interface = get_interface_; \

- \

- *output_class = clazz; \

- \

- return FT_Err_Ok; \

- }

-#endif /* FT_CONFIG_OPTION_PIC */

-FT_END_HEADER

-#endif /* __FTOBJS_H__ */

-/* END */

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