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/***************************************************************************/
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/* */
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/* ftobjs.h */
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/* */
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/* The FreeType private base classes (specification). */
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/* */
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/* Copyright 1996-2001, 2002, 2003, 2004, 2005, 2006 by */
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/* David Turner, Robert Wilhelm, and Werner Lemberg. */
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/* */
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/* This file is part of the FreeType project, and may only be used, */
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/* modified, and distributed under the terms of the FreeType project */
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/* license, FTL.TXT. By continuing to use, modify, or distribute */
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/* this file you indicate that you have read the license and */
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/* understand and accept it fully. */
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/* */
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/***************************************************************************/
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/*************************************************************************/
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/* */
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/* This file contains the definition of all internal FreeType classes. */
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/* */
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/*************************************************************************/
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#ifndef __FTOBJS_H__
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#define __FTOBJS_H__
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#include <ft2build.h>
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#include FT_RENDER_H
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#include FT_SIZES_H
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#include FT_INTERNAL_MEMORY_H
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#include FT_INTERNAL_GLYPH_LOADER_H
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#include FT_INTERNAL_DRIVER_H
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#include FT_INTERNAL_AUTOHINT_H
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#include FT_INTERNAL_SERVICE_H
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#ifdef FT_CONFIG_OPTION_INCREMENTAL
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#include FT_INCREMENTAL_H
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#endif
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FT_BEGIN_HEADER
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/*************************************************************************/
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/* */
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/* Some generic definitions. */
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/* */
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#ifndef TRUE
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#define TRUE 1
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#endif
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#ifndef FALSE
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#define FALSE 0
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#endif
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#ifndef NULL
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#define NULL (void*)0
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#endif
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/*************************************************************************/
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/* */
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/* The min and max functions missing in C. As usual, be careful not to */
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/* write things like FT_MIN( a++, b++ ) to avoid side effects. */
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/* */
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#define FT_MIN( a, b ) ( (a) < (b) ? (a) : (b) )
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#define FT_MAX( a, b ) ( (a) > (b) ? (a) : (b) )
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#define FT_ABS( a ) ( (a) < 0 ? -(a) : (a) )
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#define FT_PAD_FLOOR( x, n ) ( (x) & ~((n)-1) )
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#define FT_PAD_ROUND( x, n ) FT_PAD_FLOOR( (x) + ((n)/2), n )
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#define FT_PAD_CEIL( x, n ) FT_PAD_FLOOR( (x) + ((n)-1), n )
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#define FT_PIX_FLOOR( x ) ( (x) & ~63 )
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#define FT_PIX_ROUND( x ) FT_PIX_FLOOR( (x) + 32 )
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#define FT_PIX_CEIL( x ) FT_PIX_FLOOR( (x) + 63 )
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/*
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* Return the highest power of 2 that is <= value; this correspond to
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* the highest bit in a given 32-bit value.
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*/
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FT_BASE( FT_UInt32 )
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ft_highpow2( FT_UInt32 value );
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/*************************************************************************/
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/*************************************************************************/
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/*************************************************************************/
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/**** ****/
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/**** ****/
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/**** C H A R M A P S ****/
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/**** ****/
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/**** ****/
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/*************************************************************************/
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/*************************************************************************/
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/*************************************************************************/
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/* handle to internal charmap object */
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typedef struct FT_CMapRec_* FT_CMap;
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/* handle to charmap class structure */
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typedef const struct FT_CMap_ClassRec_* FT_CMap_Class;
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/* internal charmap object structure */
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typedef struct FT_CMapRec_
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{
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FT_CharMapRec charmap;
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FT_CMap_Class clazz;
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} FT_CMapRec;
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/* typecase any pointer to a charmap handle */
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#define FT_CMAP( x ) ((FT_CMap)( x ))
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/* obvious macros */
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#define FT_CMAP_PLATFORM_ID( x ) FT_CMAP( x )->charmap.platform_id
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#define FT_CMAP_ENCODING_ID( x ) FT_CMAP( x )->charmap.encoding_id
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#define FT_CMAP_ENCODING( x ) FT_CMAP( x )->charmap.encoding
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#define FT_CMAP_FACE( x ) FT_CMAP( x )->charmap.face
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/* class method definitions */
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typedef FT_Error
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(*FT_CMap_InitFunc)( FT_CMap cmap,
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FT_Pointer init_data );
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typedef void
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(*FT_CMap_DoneFunc)( FT_CMap cmap );
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typedef FT_UInt
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(*FT_CMap_CharIndexFunc)( FT_CMap cmap,
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FT_UInt32 char_code );
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typedef FT_UInt
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(*FT_CMap_CharNextFunc)( FT_CMap cmap,
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FT_UInt32 *achar_code );
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typedef struct FT_CMap_ClassRec_
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{
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FT_ULong size;
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FT_CMap_InitFunc init;
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FT_CMap_DoneFunc done;
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FT_CMap_CharIndexFunc char_index;
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FT_CMap_CharNextFunc char_next;
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} FT_CMap_ClassRec;
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/* create a new charmap and add it to charmap->face */
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FT_BASE( FT_Error )
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FT_CMap_New( FT_CMap_Class clazz,
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FT_Pointer init_data,
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FT_CharMap charmap,
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FT_CMap *acmap );
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/* destroy a charmap and remove it from face's list */
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FT_BASE( void )
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FT_CMap_Done( FT_CMap cmap );
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/*************************************************************************/
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/* */
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/* <Struct> */
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/* FT_Face_InternalRec */
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/* */
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/* <Description> */
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/* This structure contains the internal fields of each FT_Face */
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/* object. These fields may change between different releases of */
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/* FreeType. */
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/* */
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/* <Fields> */
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/* max_points :: */
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/* The maximal number of points used to store the vectorial outline */
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/* of any glyph in this face. If this value cannot be known in */
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/* advance, or if the face isn't scalable, this should be set to 0. */
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/* Only relevant for scalable formats. */
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/* */
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/* max_contours :: */
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/* The maximal number of contours used to store the vectorial */
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/* outline of any glyph in this face. If this value cannot be */
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/* known in advance, or if the face isn't scalable, this should be */
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/* set to 0. Only relevant for scalable formats. */
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/* */
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/* transform_matrix :: */
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/* A 2x2 matrix of 16.16 coefficients used to transform glyph */
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/* outlines after they are loaded from the font. Only used by the */
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/* convenience functions. */
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/* */
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/* transform_delta :: */
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/* A translation vector used to transform glyph outlines after they */
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/* are loaded from the font. Only used by the convenience */
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/* functions. */
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/* */
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/* transform_flags :: */
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/* Some flags used to classify the transform. Only used by the */
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/* convenience functions. */
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/* */
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/* services :: */
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/* A cache for frequently used services. It should be only */
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/* accessed with the macro `FT_FACE_LOOKUP_SERVICE'. */
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/* */
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/* incremental_interface :: */
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/* If non-null, the interface through which glyph data and metrics */
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/* are loaded incrementally for faces that do not provide all of */
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/* this data when first opened. This field exists only if */
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/* @FT_CONFIG_OPTION_INCREMENTAL is defined. */
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/* */
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typedef struct FT_Face_InternalRec_
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{
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#ifdef FT_CONFIG_OPTION_OLD_INTERNALS
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FT_UShort reserved1;
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FT_Short reserved2;
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#endif
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FT_Matrix transform_matrix;
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FT_Vector transform_delta;
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FT_Int transform_flags;
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FT_ServiceCacheRec services;
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#ifdef FT_CONFIG_OPTION_INCREMENTAL
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FT_Incremental_InterfaceRec* incremental_interface;
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#endif
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} FT_Face_InternalRec;
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/*************************************************************************/
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/* */
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/* <Struct> */
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/* FT_Slot_InternalRec */
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/* */
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/* <Description> */
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/* This structure contains the internal fields of each FT_GlyphSlot */
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/* object. These fields may change between different releases of */
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/* FreeType. */
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/* */
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/* <Fields> */
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/* loader :: The glyph loader object used to load outlines */
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/* into the glyph slot. */
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/* */
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/* flags :: Possible values are zero or */
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/* FT_GLYPH_OWN_BITMAP. The latter indicates */
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/* that the FT_GlyphSlot structure owns the */
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/* bitmap buffer. */
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/* */
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/* glyph_transformed :: Boolean. Set to TRUE when the loaded glyph */
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/* must be transformed through a specific */
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/* font transformation. This is _not_ the same */
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/* as the face transform set through */
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/* FT_Set_Transform(). */
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/* */
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/* glyph_matrix :: The 2x2 matrix corresponding to the glyph */
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/* transformation, if necessary. */
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/* */
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/* glyph_delta :: The 2d translation vector corresponding to */
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/* the glyph transformation, if necessary. */
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/* */
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/* glyph_hints :: Format-specific glyph hints management. */
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/* */
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#define FT_GLYPH_OWN_BITMAP 0x1
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typedef struct FT_Slot_InternalRec_
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{
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FT_GlyphLoader loader;
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FT_UInt flags;
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FT_Bool glyph_transformed;
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FT_Matrix glyph_matrix;
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FT_Vector glyph_delta;
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void* glyph_hints;
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} FT_GlyphSlot_InternalRec;
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/*************************************************************************/
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/*************************************************************************/
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/*************************************************************************/
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/**** ****/
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/**** ****/
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/**** M O D U L E S ****/
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/**** ****/
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288 |
/**** ****/
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/*************************************************************************/
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290 |
/*************************************************************************/
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/*************************************************************************/
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/*************************************************************************/
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/* */
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/* <Struct> */
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/* FT_ModuleRec */
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/* */
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/* <Description> */
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/* A module object instance. */
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/* */
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/* <Fields> */
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/* clazz :: A pointer to the module's class. */
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/* */
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/* library :: A handle to the parent library object. */
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/* */
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/* memory :: A handle to the memory manager. */
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/* */
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/* generic :: A generic structure for user-level extensibility (?). */
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/* */
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typedef struct FT_ModuleRec_
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{
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FT_Module_Class* clazz;
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FT_Library library;
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FT_Memory memory;
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FT_Generic generic;
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} FT_ModuleRec;
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/* typecast an object to a FT_Module */
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#define FT_MODULE( x ) ((FT_Module)( x ))
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#define FT_MODULE_CLASS( x ) FT_MODULE( x )->clazz
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#define FT_MODULE_LIBRARY( x ) FT_MODULE( x )->library
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#define FT_MODULE_MEMORY( x ) FT_MODULE( x )->memory
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#define FT_MODULE_IS_DRIVER( x ) ( FT_MODULE_CLASS( x )->module_flags & \
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FT_MODULE_FONT_DRIVER )
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#define FT_MODULE_IS_RENDERER( x ) ( FT_MODULE_CLASS( x )->module_flags & \
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FT_MODULE_RENDERER )
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#define FT_MODULE_IS_HINTER( x ) ( FT_MODULE_CLASS( x )->module_flags & \
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FT_MODULE_HINTER )
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#define FT_MODULE_IS_STYLER( x ) ( FT_MODULE_CLASS( x )->module_flags & \
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FT_MODULE_STYLER )
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#define FT_DRIVER_IS_SCALABLE( x ) ( FT_MODULE_CLASS( x )->module_flags & \
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FT_MODULE_DRIVER_SCALABLE )
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#define FT_DRIVER_USES_OUTLINES( x ) !( FT_MODULE_CLASS( x )->module_flags & \
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FT_MODULE_DRIVER_NO_OUTLINES )
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#define FT_DRIVER_HAS_HINTER( x ) ( FT_MODULE_CLASS( x )->module_flags & \
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FT_MODULE_DRIVER_HAS_HINTER )
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348 |
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349 |
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350 |
/*************************************************************************/
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351 |
/* */
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352 |
/* <Function> */
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353 |
/* FT_Get_Module_Interface */
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354 |
/* */
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355 |
/* <Description> */
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356 |
/* Finds a module and returns its specific interface as a typeless */
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357 |
/* pointer. */
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358 |
/* */
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359 |
/* <Input> */
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360 |
/* library :: A handle to the library object. */
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361 |
/* */
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362 |
/* module_name :: The module's name (as an ASCII string). */
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363 |
/* */
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364 |
/* <Return> */
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365 |
/* A module-specific interface if available, 0 otherwise. */
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366 |
/* */
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367 |
/* <Note> */
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368 |
/* You should better be familiar with FreeType internals to know */
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369 |
/* which module to look for, and what its interface is :-) */
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370 |
/* */
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371 |
FT_BASE( const void* )
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|
372 |
FT_Get_Module_Interface( FT_Library library,
|
|
|
373 |
const char* mod_name );
|
|
|
374 |
|
|
|
375 |
FT_BASE( FT_Pointer )
|
|
|
376 |
ft_module_get_service( FT_Module module,
|
|
|
377 |
const char* service_id );
|
|
|
378 |
|
|
|
379 |
/* */
|
|
|
380 |
|
|
|
381 |
|
|
|
382 |
/*************************************************************************/
|
|
|
383 |
/*************************************************************************/
|
|
|
384 |
/*************************************************************************/
|
|
|
385 |
/**** ****/
|
|
|
386 |
/**** ****/
|
|
|
387 |
/**** FACE, SIZE & GLYPH SLOT OBJECTS ****/
|
|
|
388 |
/**** ****/
|
|
|
389 |
/**** ****/
|
|
|
390 |
/*************************************************************************/
|
|
|
391 |
/*************************************************************************/
|
|
|
392 |
/*************************************************************************/
|
|
|
393 |
|
|
|
394 |
/* a few macros used to perform easy typecasts with minimal brain damage */
|
|
|
395 |
|
|
|
396 |
#define FT_FACE( x ) ((FT_Face)(x))
|
|
|
397 |
#define FT_SIZE( x ) ((FT_Size)(x))
|
|
|
398 |
#define FT_SLOT( x ) ((FT_GlyphSlot)(x))
|
|
|
399 |
|
|
|
400 |
#define FT_FACE_DRIVER( x ) FT_FACE( x )->driver
|
|
|
401 |
#define FT_FACE_LIBRARY( x ) FT_FACE_DRIVER( x )->root.library
|
|
|
402 |
#define FT_FACE_MEMORY( x ) FT_FACE( x )->memory
|
|
|
403 |
#define FT_FACE_STREAM( x ) FT_FACE( x )->stream
|
|
|
404 |
|
|
|
405 |
#define FT_SIZE_FACE( x ) FT_SIZE( x )->face
|
|
|
406 |
#define FT_SLOT_FACE( x ) FT_SLOT( x )->face
|
|
|
407 |
|
|
|
408 |
#define FT_FACE_SLOT( x ) FT_FACE( x )->glyph
|
|
|
409 |
#define FT_FACE_SIZE( x ) FT_FACE( x )->size
|
|
|
410 |
|
|
|
411 |
|
|
|
412 |
/*************************************************************************/
|
|
|
413 |
/* */
|
|
|
414 |
/* <Function> */
|
|
|
415 |
/* FT_New_GlyphSlot */
|
|
|
416 |
/* */
|
|
|
417 |
/* <Description> */
|
|
|
418 |
/* It is sometimes useful to have more than one glyph slot for a */
|
|
|
419 |
/* given face object. This function is used to create additional */
|
|
|
420 |
/* slots. All of them are automatically discarded when the face is */
|
|
|
421 |
/* destroyed. */
|
|
|
422 |
/* */
|
|
|
423 |
/* <Input> */
|
|
|
424 |
/* face :: A handle to a parent face object. */
|
|
|
425 |
/* */
|
|
|
426 |
/* <Output> */
|
|
|
427 |
/* aslot :: A handle to a new glyph slot object. */
|
|
|
428 |
/* */
|
|
|
429 |
/* <Return> */
|
|
|
430 |
/* FreeType error code. 0 means success. */
|
|
|
431 |
/* */
|
|
|
432 |
FT_BASE( FT_Error )
|
|
|
433 |
FT_New_GlyphSlot( FT_Face face,
|
|
|
434 |
FT_GlyphSlot *aslot );
|
|
|
435 |
|
|
|
436 |
|
|
|
437 |
/*************************************************************************/
|
|
|
438 |
/* */
|
|
|
439 |
/* <Function> */
|
|
|
440 |
/* FT_Done_GlyphSlot */
|
|
|
441 |
/* */
|
|
|
442 |
/* <Description> */
|
|
|
443 |
/* Destroys a given glyph slot. Remember however that all slots are */
|
|
|
444 |
/* automatically destroyed with its parent. Using this function is */
|
|
|
445 |
/* not always mandatory. */
|
|
|
446 |
/* */
|
|
|
447 |
/* <Input> */
|
|
|
448 |
/* slot :: A handle to a target glyph slot. */
|
|
|
449 |
/* */
|
|
|
450 |
FT_BASE( void )
|
|
|
451 |
FT_Done_GlyphSlot( FT_GlyphSlot slot );
|
|
|
452 |
|
|
|
453 |
/* */
|
|
|
454 |
|
|
|
455 |
#define FT_REQUEST_WIDTH( req ) \
|
|
|
456 |
( (req)->horiResolution \
|
|
|
457 |
? (FT_Pos)( (req)->width * (req)->horiResolution + 36 ) / 72 \
|
|
|
458 |
: (req)->width )
|
|
|
459 |
|
|
|
460 |
#define FT_REQUEST_HEIGHT( req ) \
|
|
|
461 |
( (req)->vertResolution \
|
|
|
462 |
? (FT_Pos)( (req)->height * (req)->vertResolution + 36 ) / 72 \
|
|
|
463 |
: (req)->height )
|
|
|
464 |
|
|
|
465 |
|
|
|
466 |
/* Set the metrics according to a bitmap strike. */
|
|
|
467 |
FT_BASE( void )
|
|
|
468 |
FT_Select_Metrics( FT_Face face,
|
|
|
469 |
FT_ULong strike_index );
|
|
|
470 |
|
|
|
471 |
|
|
|
472 |
/* Set the metrics according to a size request. */
|
|
|
473 |
FT_BASE( void )
|
|
|
474 |
FT_Request_Metrics( FT_Face face,
|
|
|
475 |
FT_Size_Request req );
|
|
|
476 |
|
|
|
477 |
|
|
|
478 |
/* Match a size request against `available_sizes'. */
|
|
|
479 |
FT_BASE( FT_Error )
|
|
|
480 |
FT_Match_Size( FT_Face face,
|
|
|
481 |
FT_Size_Request req,
|
|
|
482 |
FT_Bool ignore_width,
|
|
|
483 |
FT_ULong* size_index );
|
|
|
484 |
|
|
|
485 |
|
|
|
486 |
/* Use the horizontal metrics to synthesize the vertical metrics. */
|
|
|
487 |
/* If `advance' is zero, it is also synthesized. */
|
|
|
488 |
FT_BASE( void )
|
|
|
489 |
ft_synthesize_vertical_metrics( FT_Glyph_Metrics* metrics,
|
|
|
490 |
FT_Pos advance );
|
|
|
491 |
|
|
|
492 |
|
|
|
493 |
/* Free the bitmap of a given glyphslot when needed (i.e., only when it */
|
|
|
494 |
/* was allocated with ft_glyphslot_alloc_bitmap). */
|
|
|
495 |
FT_BASE( void )
|
|
|
496 |
ft_glyphslot_free_bitmap( FT_GlyphSlot slot );
|
|
|
497 |
|
|
|
498 |
|
|
|
499 |
/* Allocate a new bitmap buffer in a glyph slot. */
|
|
|
500 |
FT_BASE( FT_Error )
|
|
|
501 |
ft_glyphslot_alloc_bitmap( FT_GlyphSlot slot,
|
|
|
502 |
FT_ULong size );
|
|
|
503 |
|
|
|
504 |
|
|
|
505 |
/* Set the bitmap buffer in a glyph slot to a given pointer. The buffer */
|
|
|
506 |
/* will not be freed by a later call to ft_glyphslot_free_bitmap. */
|
|
|
507 |
FT_BASE( void )
|
|
|
508 |
ft_glyphslot_set_bitmap( FT_GlyphSlot slot,
|
|
|
509 |
FT_Byte* buffer );
|
|
|
510 |
|
|
|
511 |
|
|
|
512 |
/*************************************************************************/
|
|
|
513 |
/*************************************************************************/
|
|
|
514 |
/*************************************************************************/
|
|
|
515 |
/**** ****/
|
|
|
516 |
/**** ****/
|
|
|
517 |
/**** R E N D E R E R S ****/
|
|
|
518 |
/**** ****/
|
|
|
519 |
/**** ****/
|
|
|
520 |
/*************************************************************************/
|
|
|
521 |
/*************************************************************************/
|
|
|
522 |
/*************************************************************************/
|
|
|
523 |
|
|
|
524 |
|
|
|
525 |
#define FT_RENDERER( x ) ((FT_Renderer)( x ))
|
|
|
526 |
#define FT_GLYPH( x ) ((FT_Glyph)( x ))
|
|
|
527 |
#define FT_BITMAP_GLYPH( x ) ((FT_BitmapGlyph)( x ))
|
|
|
528 |
#define FT_OUTLINE_GLYPH( x ) ((FT_OutlineGlyph)( x ))
|
|
|
529 |
|
|
|
530 |
|
|
|
531 |
typedef struct FT_RendererRec_
|
|
|
532 |
{
|
|
|
533 |
FT_ModuleRec root;
|
|
|
534 |
FT_Renderer_Class* clazz;
|
|
|
535 |
FT_Glyph_Format glyph_format;
|
|
|
536 |
FT_Glyph_Class glyph_class;
|
|
|
537 |
|
|
|
538 |
FT_Raster raster;
|
|
|
539 |
FT_Raster_Render_Func raster_render;
|
|
|
540 |
FT_Renderer_RenderFunc render;
|
|
|
541 |
|
|
|
542 |
} FT_RendererRec;
|
|
|
543 |
|
|
|
544 |
|
|
|
545 |
/*************************************************************************/
|
|
|
546 |
/*************************************************************************/
|
|
|
547 |
/*************************************************************************/
|
|
|
548 |
/**** ****/
|
|
|
549 |
/**** ****/
|
|
|
550 |
/**** F O N T D R I V E R S ****/
|
|
|
551 |
/**** ****/
|
|
|
552 |
/**** ****/
|
|
|
553 |
/*************************************************************************/
|
|
|
554 |
/*************************************************************************/
|
|
|
555 |
/*************************************************************************/
|
|
|
556 |
|
|
|
557 |
|
|
|
558 |
/* typecast a module into a driver easily */
|
|
|
559 |
#define FT_DRIVER( x ) ((FT_Driver)(x))
|
|
|
560 |
|
|
|
561 |
/* typecast a module as a driver, and get its driver class */
|
|
|
562 |
#define FT_DRIVER_CLASS( x ) FT_DRIVER( x )->clazz
|
|
|
563 |
|
|
|
564 |
|
|
|
565 |
/*************************************************************************/
|
|
|
566 |
/* */
|
|
|
567 |
/* <Struct> */
|
|
|
568 |
/* FT_DriverRec */
|
|
|
569 |
/* */
|
|
|
570 |
/* <Description> */
|
|
|
571 |
/* The root font driver class. A font driver is responsible for */
|
|
|
572 |
/* managing and loading font files of a given format. */
|
|
|
573 |
/* */
|
|
|
574 |
/* <Fields> */
|
|
|
575 |
/* root :: Contains the fields of the root module class. */
|
|
|
576 |
/* */
|
|
|
577 |
/* clazz :: A pointer to the font driver's class. Note that */
|
|
|
578 |
/* this is NOT root.clazz. `class' wasn't used */
|
|
|
579 |
/* as it is a reserved word in C++. */
|
|
|
580 |
/* */
|
|
|
581 |
/* faces_list :: The list of faces currently opened by this */
|
|
|
582 |
/* driver. */
|
|
|
583 |
/* */
|
|
|
584 |
/* extensions :: A typeless pointer to the driver's extensions */
|
|
|
585 |
/* registry, if they are supported through the */
|
|
|
586 |
/* configuration macro FT_CONFIG_OPTION_EXTENSIONS. */
|
|
|
587 |
/* */
|
|
|
588 |
/* glyph_loader :: The glyph loader for all faces managed by this */
|
|
|
589 |
/* driver. This object isn't defined for unscalable */
|
|
|
590 |
/* formats. */
|
|
|
591 |
/* */
|
|
|
592 |
typedef struct FT_DriverRec_
|
|
|
593 |
{
|
|
|
594 |
FT_ModuleRec root;
|
|
|
595 |
FT_Driver_Class clazz;
|
|
|
596 |
|
|
|
597 |
FT_ListRec faces_list;
|
|
|
598 |
void* extensions;
|
|
|
599 |
|
|
|
600 |
FT_GlyphLoader glyph_loader;
|
|
|
601 |
|
|
|
602 |
} FT_DriverRec;
|
|
|
603 |
|
|
|
604 |
|
|
|
605 |
/*************************************************************************/
|
|
|
606 |
/*************************************************************************/
|
|
|
607 |
/*************************************************************************/
|
|
|
608 |
/**** ****/
|
|
|
609 |
/**** ****/
|
|
|
610 |
/**** L I B R A R I E S ****/
|
|
|
611 |
/**** ****/
|
|
|
612 |
/**** ****/
|
|
|
613 |
/*************************************************************************/
|
|
|
614 |
/*************************************************************************/
|
|
|
615 |
/*************************************************************************/
|
|
|
616 |
|
|
|
617 |
|
|
|
618 |
/* This hook is used by the TrueType debugger. It must be set to an */
|
|
|
619 |
/* alternate truetype bytecode interpreter function. */
|
|
|
620 |
#define FT_DEBUG_HOOK_TRUETYPE 0
|
|
|
621 |
|
|
|
622 |
|
|
|
623 |
/* Set this debug hook to a non-null pointer to force unpatented hinting */
|
|
|
624 |
/* for all faces when both TT_CONFIG_OPTION_BYTECODE_INTERPRETER and */
|
|
|
625 |
/* TT_CONFIG_OPTION_UNPATENTED_HINTING are defined. this is only used */
|
|
|
626 |
/* during debugging. */
|
|
|
627 |
#define FT_DEBUG_HOOK_UNPATENTED_HINTING 1
|
|
|
628 |
|
|
|
629 |
|
|
|
630 |
/*************************************************************************/
|
|
|
631 |
/* */
|
|
|
632 |
/* <Struct> */
|
|
|
633 |
/* FT_LibraryRec */
|
|
|
634 |
/* */
|
|
|
635 |
/* <Description> */
|
|
|
636 |
/* The FreeType library class. This is the root of all FreeType */
|
|
|
637 |
/* data. Use FT_New_Library() to create a library object, and */
|
|
|
638 |
/* FT_Done_Library() to discard it and all child objects. */
|
|
|
639 |
/* */
|
|
|
640 |
/* <Fields> */
|
|
|
641 |
/* memory :: The library's memory object. Manages memory */
|
|
|
642 |
/* allocation. */
|
|
|
643 |
/* */
|
|
|
644 |
/* generic :: Client data variable. Used to extend the */
|
|
|
645 |
/* Library class by higher levels and clients. */
|
|
|
646 |
/* */
|
|
|
647 |
/* version_major :: The major version number of the library. */
|
|
|
648 |
/* */
|
|
|
649 |
/* version_minor :: The minor version number of the library. */
|
|
|
650 |
/* */
|
|
|
651 |
/* version_patch :: The current patch level of the library. */
|
|
|
652 |
/* */
|
|
|
653 |
/* num_modules :: The number of modules currently registered */
|
|
|
654 |
/* within this library. This is set to 0 for new */
|
|
|
655 |
/* libraries. New modules are added through the */
|
|
|
656 |
/* FT_Add_Module() API function. */
|
|
|
657 |
/* */
|
|
|
658 |
/* modules :: A table used to store handles to the currently */
|
|
|
659 |
/* registered modules. Note that each font driver */
|
|
|
660 |
/* contains a list of its opened faces. */
|
|
|
661 |
/* */
|
|
|
662 |
/* renderers :: The list of renderers currently registered */
|
|
|
663 |
/* within the library. */
|
|
|
664 |
/* */
|
|
|
665 |
/* cur_renderer :: The current outline renderer. This is a */
|
|
|
666 |
/* shortcut used to avoid parsing the list on */
|
|
|
667 |
/* each call to FT_Outline_Render(). It is a */
|
|
|
668 |
/* handle to the current renderer for the */
|
|
|
669 |
/* FT_GLYPH_FORMAT_OUTLINE format. */
|
|
|
670 |
/* */
|
|
|
671 |
/* auto_hinter :: XXX */
|
|
|
672 |
/* */
|
|
|
673 |
/* raster_pool :: The raster object's render pool. This can */
|
|
|
674 |
/* ideally be changed dynamically at run-time. */
|
|
|
675 |
/* */
|
|
|
676 |
/* raster_pool_size :: The size of the render pool in bytes. */
|
|
|
677 |
/* */
|
|
|
678 |
/* debug_hooks :: XXX */
|
|
|
679 |
/* */
|
|
|
680 |
typedef struct FT_LibraryRec_
|
|
|
681 |
{
|
|
|
682 |
FT_Memory memory; /* library's memory manager */
|
|
|
683 |
|
|
|
684 |
FT_Generic generic;
|
|
|
685 |
|
|
|
686 |
FT_Int version_major;
|
|
|
687 |
FT_Int version_minor;
|
|
|
688 |
FT_Int version_patch;
|
|
|
689 |
|
|
|
690 |
FT_UInt num_modules;
|
|
|
691 |
FT_Module modules[FT_MAX_MODULES]; /* module objects */
|
|
|
692 |
|
|
|
693 |
FT_ListRec renderers; /* list of renderers */
|
|
|
694 |
FT_Renderer cur_renderer; /* current outline renderer */
|
|
|
695 |
FT_Module auto_hinter;
|
|
|
696 |
|
|
|
697 |
FT_Byte* raster_pool; /* scan-line conversion */
|
|
|
698 |
/* render pool */
|
|
|
699 |
FT_ULong raster_pool_size; /* size of render pool in bytes */
|
|
|
700 |
|
|
|
701 |
FT_DebugHook_Func debug_hooks[4];
|
|
|
702 |
|
|
|
703 |
} FT_LibraryRec;
|
|
|
704 |
|
|
|
705 |
|
|
|
706 |
FT_BASE( FT_Renderer )
|
|
|
707 |
FT_Lookup_Renderer( FT_Library library,
|
|
|
708 |
FT_Glyph_Format format,
|
|
|
709 |
FT_ListNode* node );
|
|
|
710 |
|
|
|
711 |
FT_BASE( FT_Error )
|
|
|
712 |
FT_Render_Glyph_Internal( FT_Library library,
|
|
|
713 |
FT_GlyphSlot slot,
|
|
|
714 |
FT_Render_Mode render_mode );
|
|
|
715 |
|
|
|
716 |
typedef const char*
|
|
|
717 |
(*FT_Face_GetPostscriptNameFunc)( FT_Face face );
|
|
|
718 |
|
|
|
719 |
typedef FT_Error
|
|
|
720 |
(*FT_Face_GetGlyphNameFunc)( FT_Face face,
|
|
|
721 |
FT_UInt glyph_index,
|
|
|
722 |
FT_Pointer buffer,
|
|
|
723 |
FT_UInt buffer_max );
|
|
|
724 |
|
|
|
725 |
typedef FT_UInt
|
|
|
726 |
(*FT_Face_GetGlyphNameIndexFunc)( FT_Face face,
|
|
|
727 |
FT_String* glyph_name );
|
|
|
728 |
|
|
|
729 |
|
|
|
730 |
#ifndef FT_CONFIG_OPTION_NO_DEFAULT_SYSTEM
|
|
|
731 |
|
|
|
732 |
/*************************************************************************/
|
|
|
733 |
/* */
|
|
|
734 |
/* <Function> */
|
|
|
735 |
/* FT_New_Memory */
|
|
|
736 |
/* */
|
|
|
737 |
/* <Description> */
|
|
|
738 |
/* Creates a new memory object. */
|
|
|
739 |
/* */
|
|
|
740 |
/* <Return> */
|
|
|
741 |
/* A pointer to the new memory object. 0 in case of error. */
|
|
|
742 |
/* */
|
|
|
743 |
FT_BASE( FT_Memory )
|
|
|
744 |
FT_New_Memory( void );
|
|
|
745 |
|
|
|
746 |
|
|
|
747 |
/*************************************************************************/
|
|
|
748 |
/* */
|
|
|
749 |
/* <Function> */
|
|
|
750 |
/* FT_Done_Memory */
|
|
|
751 |
/* */
|
|
|
752 |
/* <Description> */
|
|
|
753 |
/* Discards memory manager. */
|
|
|
754 |
/* */
|
|
|
755 |
/* <Input> */
|
|
|
756 |
/* memory :: A handle to the memory manager. */
|
|
|
757 |
/* */
|
|
|
758 |
FT_BASE( void )
|
|
|
759 |
FT_Done_Memory( FT_Memory memory );
|
|
|
760 |
|
|
|
761 |
#endif /* !FT_CONFIG_OPTION_NO_DEFAULT_SYSTEM */
|
|
|
762 |
|
|
|
763 |
|
|
|
764 |
/* Define default raster's interface. The default raster is located in */
|
|
|
765 |
/* `src/base/ftraster.c'. */
|
|
|
766 |
/* */
|
|
|
767 |
/* Client applications can register new rasters through the */
|
|
|
768 |
/* FT_Set_Raster() API. */
|
|
|
769 |
|
|
|
770 |
#ifndef FT_NO_DEFAULT_RASTER
|
|
|
771 |
FT_EXPORT_VAR( FT_Raster_Funcs ) ft_default_raster;
|
|
|
772 |
#endif
|
|
|
773 |
|
|
|
774 |
|
|
|
775 |
FT_END_HEADER
|
|
|
776 |
|
|
|
777 |
#endif /* __FTOBJS_H__ */
|
|
|
778 |
|
|
|
779 |
|
|
|
780 |
/* END */
|