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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, 2008, 2010 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, LICENSE.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_LCD_FILTER_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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#include FT_INTERNAL_PIC_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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* character classification functions -- since these are used to parse
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* font files, we must not use those in <ctypes.h> which are
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* locale-dependent
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*/
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#define ft_isdigit( x ) ( ( (unsigned)(x) - '0' ) < 10U )
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#define ft_isxdigit( x ) ( ( (unsigned)(x) - '0' ) < 10U || \
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( (unsigned)(x) - 'a' ) < 6U || \
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( (unsigned)(x) - 'A' ) < 6U )
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/* the next two macros assume ASCII representation */
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#define ft_isupper( x ) ( ( (unsigned)(x) - 'A' ) < 26U )
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#define ft_islower( x ) ( ( (unsigned)(x) - 'a' ) < 26U )
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#define ft_isalpha( x ) ( ft_isupper( x ) || ft_islower( x ) )
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#define ft_isalnum( x ) ( ft_isdigit( x ) || ft_isalpha( x ) )
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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 FT_UInt
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(*FT_CMap_CharVarIndexFunc)( FT_CMap cmap,
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FT_CMap unicode_cmap,
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FT_UInt32 char_code,
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FT_UInt32 variant_selector );
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typedef FT_Bool
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(*FT_CMap_CharVarIsDefaultFunc)( FT_CMap cmap,
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FT_UInt32 char_code,
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FT_UInt32 variant_selector );
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typedef FT_UInt32 *
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(*FT_CMap_VariantListFunc)( FT_CMap cmap,
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FT_Memory mem );
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typedef FT_UInt32 *
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(*FT_CMap_CharVariantListFunc)( FT_CMap cmap,
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FT_Memory mem,
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FT_UInt32 char_code );
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typedef FT_UInt32 *
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(*FT_CMap_VariantCharListFunc)( FT_CMap cmap,
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FT_Memory mem,
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FT_UInt32 variant_selector );
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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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/* Subsequent entries are special ones for format 14 -- the variant */
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/* selector subtable which behaves like no other */
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FT_CMap_CharVarIndexFunc char_var_index;
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FT_CMap_CharVarIsDefaultFunc char_var_default;
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FT_CMap_VariantListFunc variant_list;
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FT_CMap_CharVariantListFunc charvariant_list;
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FT_CMap_VariantCharListFunc variantchar_list;
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} FT_CMap_ClassRec;
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#ifndef FT_CONFIG_OPTION_PIC
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#define FT_DECLARE_CMAP_CLASS(class_) \
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FT_CALLBACK_TABLE const FT_CMap_ClassRec class_;
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#define FT_DEFINE_CMAP_CLASS(class_, size_, init_, done_, char_index_, \
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char_next_, char_var_index_, char_var_default_, variant_list_, \
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charvariant_list_, variantchar_list_) \
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FT_CALLBACK_TABLE_DEF \
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const FT_CMap_ClassRec class_ = \
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{ \
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size_, init_, done_, char_index_, char_next_, char_var_index_, \
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char_var_default_, variant_list_, charvariant_list_, variantchar_list_ \
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};
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#else /* FT_CONFIG_OPTION_PIC */
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#define FT_DECLARE_CMAP_CLASS(class_) \
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void FT_Init_Class_##class_( FT_Library library, FT_CMap_ClassRec* clazz);
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#define FT_DEFINE_CMAP_CLASS(class_, size_, init_, done_, char_index_, \
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char_next_, char_var_index_, char_var_default_, variant_list_, \
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charvariant_list_, variantchar_list_) \
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void \
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FT_Init_Class_##class_( FT_Library library, \
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FT_CMap_ClassRec* clazz) \
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{ \
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FT_UNUSED(library); \
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clazz->size = size_; \
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clazz->init = init_; \
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clazz->done = done_; \
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clazz->char_index = char_index_; \
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clazz->char_next = char_next_; \
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clazz->char_var_index = char_var_index_; \
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clazz->char_var_default = char_var_default_; \
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clazz->variant_list = variant_list_; \
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clazz->charvariant_list = charvariant_list_; \
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clazz->variantchar_list = variantchar_list_; \
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}
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#endif /* FT_CONFIG_OPTION_PIC */
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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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/* ignore_unpatented_hinter :: */
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/* This boolean flag instructs the glyph loader to ignore the */
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/* native font hinter, if one is found. This is exclusively used */
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/* in the case when the unpatented hinter is compiled within the */
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/* library. */
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/* */
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/* refcount :: */
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/* A counter initialized to~1 at the time an @FT_Face structure is */
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/* created. @FT_Reference_Face increments this counter, and */
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/* @FT_Done_Face only destroys a face if the counter is~1, */
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/* otherwise it simply decrements it. */
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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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335 |
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FT_Bool ignore_unpatented_hinter;
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FT_UInt refcount;
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338 |
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} FT_Face_InternalRec;
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340 |
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341 |
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342 |
/*************************************************************************/
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/* */
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344 |
/* <Struct> */
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345 |
/* FT_Slot_InternalRec */
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/* */
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347 |
/* <Description> */
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348 |
/* This structure contains the internal fields of each FT_GlyphSlot */
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349 |
/* object. These fields may change between different releases of */
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350 |
/* FreeType. */
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351 |
/* */
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352 |
/* <Fields> */
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353 |
/* loader :: The glyph loader object used to load outlines */
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354 |
/* into the glyph slot. */
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/* */
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356 |
/* flags :: Possible values are zero or */
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|
357 |
/* FT_GLYPH_OWN_BITMAP. The latter indicates */
|
|
|
358 |
/* that the FT_GlyphSlot structure owns the */
|
|
|
359 |
/* bitmap buffer. */
|
|
|
360 |
/* */
|
|
|
361 |
/* glyph_transformed :: Boolean. Set to TRUE when the loaded glyph */
|
|
|
362 |
/* must be transformed through a specific */
|
|
|
363 |
/* font transformation. This is _not_ the same */
|
|
|
364 |
/* as the face transform set through */
|
|
|
365 |
/* FT_Set_Transform(). */
|
|
|
366 |
/* */
|
|
|
367 |
/* glyph_matrix :: The 2x2 matrix corresponding to the glyph */
|
|
|
368 |
/* transformation, if necessary. */
|
|
|
369 |
/* */
|
|
|
370 |
/* glyph_delta :: The 2d translation vector corresponding to */
|
|
|
371 |
/* the glyph transformation, if necessary. */
|
|
|
372 |
/* */
|
|
|
373 |
/* glyph_hints :: Format-specific glyph hints management. */
|
|
|
374 |
/* */
|
|
|
375 |
|
|
|
376 |
#define FT_GLYPH_OWN_BITMAP 0x1
|
|
|
377 |
|
|
|
378 |
typedef struct FT_Slot_InternalRec_
|
|
|
379 |
{
|
|
|
380 |
FT_GlyphLoader loader;
|
|
|
381 |
FT_UInt flags;
|
|
|
382 |
FT_Bool glyph_transformed;
|
|
|
383 |
FT_Matrix glyph_matrix;
|
|
|
384 |
FT_Vector glyph_delta;
|
|
|
385 |
void* glyph_hints;
|
|
|
386 |
|
|
|
387 |
} FT_GlyphSlot_InternalRec;
|
|
|
388 |
|
|
|
389 |
|
|
|
390 |
#if 0
|
|
|
391 |
|
|
|
392 |
/*************************************************************************/
|
|
|
393 |
/* */
|
|
|
394 |
/* <Struct> */
|
|
|
395 |
/* FT_Size_InternalRec */
|
|
|
396 |
/* */
|
|
|
397 |
/* <Description> */
|
|
|
398 |
/* This structure contains the internal fields of each FT_Size */
|
|
|
399 |
/* object. Currently, it's empty. */
|
|
|
400 |
/* */
|
|
|
401 |
/*************************************************************************/
|
|
|
402 |
|
|
|
403 |
typedef struct FT_Size_InternalRec_
|
|
|
404 |
{
|
|
|
405 |
/* empty */
|
|
|
406 |
|
|
|
407 |
} FT_Size_InternalRec;
|
|
|
408 |
|
|
|
409 |
#endif
|
|
|
410 |
|
|
|
411 |
|
|
|
412 |
/*************************************************************************/
|
|
|
413 |
/*************************************************************************/
|
|
|
414 |
/**** ****/
|
|
|
415 |
/**** ****/
|
|
|
416 |
/**** M O D U L E S ****/
|
|
|
417 |
/**** ****/
|
|
|
418 |
/**** ****/
|
|
|
419 |
/*************************************************************************/
|
|
|
420 |
/*************************************************************************/
|
|
|
421 |
/*************************************************************************/
|
|
|
422 |
|
|
|
423 |
|
|
|
424 |
/*************************************************************************/
|
|
|
425 |
/* */
|
|
|
426 |
/* <Struct> */
|
|
|
427 |
/* FT_ModuleRec */
|
|
|
428 |
/* */
|
|
|
429 |
/* <Description> */
|
|
|
430 |
/* A module object instance. */
|
|
|
431 |
/* */
|
|
|
432 |
/* <Fields> */
|
|
|
433 |
/* clazz :: A pointer to the module's class. */
|
|
|
434 |
/* */
|
|
|
435 |
/* library :: A handle to the parent library object. */
|
|
|
436 |
/* */
|
|
|
437 |
/* memory :: A handle to the memory manager. */
|
|
|
438 |
/* */
|
|
|
439 |
/* generic :: A generic structure for user-level extensibility (?). */
|
|
|
440 |
/* */
|
|
|
441 |
typedef struct FT_ModuleRec_
|
|
|
442 |
{
|
|
|
443 |
FT_Module_Class* clazz;
|
|
|
444 |
FT_Library library;
|
|
|
445 |
FT_Memory memory;
|
|
|
446 |
FT_Generic generic;
|
|
|
447 |
|
|
|
448 |
} FT_ModuleRec;
|
|
|
449 |
|
|
|
450 |
|
|
|
451 |
/* typecast an object to a FT_Module */
|
|
|
452 |
#define FT_MODULE( x ) ((FT_Module)( x ))
|
|
|
453 |
#define FT_MODULE_CLASS( x ) FT_MODULE( x )->clazz
|
|
|
454 |
#define FT_MODULE_LIBRARY( x ) FT_MODULE( x )->library
|
|
|
455 |
#define FT_MODULE_MEMORY( x ) FT_MODULE( x )->memory
|
|
|
456 |
|
|
|
457 |
|
|
|
458 |
#define FT_MODULE_IS_DRIVER( x ) ( FT_MODULE_CLASS( x )->module_flags & \
|
|
|
459 |
FT_MODULE_FONT_DRIVER )
|
|
|
460 |
|
|
|
461 |
#define FT_MODULE_IS_RENDERER( x ) ( FT_MODULE_CLASS( x )->module_flags & \
|
|
|
462 |
FT_MODULE_RENDERER )
|
|
|
463 |
|
|
|
464 |
#define FT_MODULE_IS_HINTER( x ) ( FT_MODULE_CLASS( x )->module_flags & \
|
|
|
465 |
FT_MODULE_HINTER )
|
|
|
466 |
|
|
|
467 |
#define FT_MODULE_IS_STYLER( x ) ( FT_MODULE_CLASS( x )->module_flags & \
|
|
|
468 |
FT_MODULE_STYLER )
|
|
|
469 |
|
|
|
470 |
#define FT_DRIVER_IS_SCALABLE( x ) ( FT_MODULE_CLASS( x )->module_flags & \
|
|
|
471 |
FT_MODULE_DRIVER_SCALABLE )
|
|
|
472 |
|
|
|
473 |
#define FT_DRIVER_USES_OUTLINES( x ) !( FT_MODULE_CLASS( x )->module_flags & \
|
|
|
474 |
FT_MODULE_DRIVER_NO_OUTLINES )
|
|
|
475 |
|
|
|
476 |
#define FT_DRIVER_HAS_HINTER( x ) ( FT_MODULE_CLASS( x )->module_flags & \
|
|
|
477 |
FT_MODULE_DRIVER_HAS_HINTER )
|
|
|
478 |
|
|
|
479 |
|
|
|
480 |
/*************************************************************************/
|
|
|
481 |
/* */
|
|
|
482 |
/* <Function> */
|
|
|
483 |
/* FT_Get_Module_Interface */
|
|
|
484 |
/* */
|
|
|
485 |
/* <Description> */
|
|
|
486 |
/* Finds a module and returns its specific interface as a typeless */
|
|
|
487 |
/* pointer. */
|
|
|
488 |
/* */
|
|
|
489 |
/* <Input> */
|
|
|
490 |
/* library :: A handle to the library object. */
|
|
|
491 |
/* */
|
|
|
492 |
/* module_name :: The module's name (as an ASCII string). */
|
|
|
493 |
/* */
|
|
|
494 |
/* <Return> */
|
|
|
495 |
/* A module-specific interface if available, 0 otherwise. */
|
|
|
496 |
/* */
|
|
|
497 |
/* <Note> */
|
|
|
498 |
/* You should better be familiar with FreeType internals to know */
|
|
|
499 |
/* which module to look for, and what its interface is :-) */
|
|
|
500 |
/* */
|
|
|
501 |
FT_BASE( const void* )
|
|
|
502 |
FT_Get_Module_Interface( FT_Library library,
|
|
|
503 |
const char* mod_name );
|
|
|
504 |
|
|
|
505 |
FT_BASE( FT_Pointer )
|
|
|
506 |
ft_module_get_service( FT_Module module,
|
|
|
507 |
const char* service_id );
|
|
|
508 |
|
|
|
509 |
/* */
|
|
|
510 |
|
|
|
511 |
|
|
|
512 |
/*************************************************************************/
|
|
|
513 |
/*************************************************************************/
|
|
|
514 |
/*************************************************************************/
|
|
|
515 |
/**** ****/
|
|
|
516 |
/**** ****/
|
|
|
517 |
/**** FACE, SIZE & GLYPH SLOT OBJECTS ****/
|
|
|
518 |
/**** ****/
|
|
|
519 |
/**** ****/
|
|
|
520 |
/*************************************************************************/
|
|
|
521 |
/*************************************************************************/
|
|
|
522 |
/*************************************************************************/
|
|
|
523 |
|
|
|
524 |
/* a few macros used to perform easy typecasts with minimal brain damage */
|
|
|
525 |
|
|
|
526 |
#define FT_FACE( x ) ((FT_Face)(x))
|
|
|
527 |
#define FT_SIZE( x ) ((FT_Size)(x))
|
|
|
528 |
#define FT_SLOT( x ) ((FT_GlyphSlot)(x))
|
|
|
529 |
|
|
|
530 |
#define FT_FACE_DRIVER( x ) FT_FACE( x )->driver
|
|
|
531 |
#define FT_FACE_LIBRARY( x ) FT_FACE_DRIVER( x )->root.library
|
|
|
532 |
#define FT_FACE_MEMORY( x ) FT_FACE( x )->memory
|
|
|
533 |
#define FT_FACE_STREAM( x ) FT_FACE( x )->stream
|
|
|
534 |
|
|
|
535 |
#define FT_SIZE_FACE( x ) FT_SIZE( x )->face
|
|
|
536 |
#define FT_SLOT_FACE( x ) FT_SLOT( x )->face
|
|
|
537 |
|
|
|
538 |
#define FT_FACE_SLOT( x ) FT_FACE( x )->glyph
|
|
|
539 |
#define FT_FACE_SIZE( x ) FT_FACE( x )->size
|
|
|
540 |
|
|
|
541 |
|
|
|
542 |
/*************************************************************************/
|
|
|
543 |
/* */
|
|
|
544 |
/* <Function> */
|
|
|
545 |
/* FT_New_GlyphSlot */
|
|
|
546 |
/* */
|
|
|
547 |
/* <Description> */
|
|
|
548 |
/* It is sometimes useful to have more than one glyph slot for a */
|
|
|
549 |
/* given face object. This function is used to create additional */
|
|
|
550 |
/* slots. All of them are automatically discarded when the face is */
|
|
|
551 |
/* destroyed. */
|
|
|
552 |
/* */
|
|
|
553 |
/* <Input> */
|
|
|
554 |
/* face :: A handle to a parent face object. */
|
|
|
555 |
/* */
|
|
|
556 |
/* <Output> */
|
|
|
557 |
/* aslot :: A handle to a new glyph slot object. */
|
|
|
558 |
/* */
|
|
|
559 |
/* <Return> */
|
|
|
560 |
/* FreeType error code. 0 means success. */
|
|
|
561 |
/* */
|
|
|
562 |
FT_BASE( FT_Error )
|
|
|
563 |
FT_New_GlyphSlot( FT_Face face,
|
|
|
564 |
FT_GlyphSlot *aslot );
|
|
|
565 |
|
|
|
566 |
|
|
|
567 |
/*************************************************************************/
|
|
|
568 |
/* */
|
|
|
569 |
/* <Function> */
|
|
|
570 |
/* FT_Done_GlyphSlot */
|
|
|
571 |
/* */
|
|
|
572 |
/* <Description> */
|
|
|
573 |
/* Destroys a given glyph slot. Remember however that all slots are */
|
|
|
574 |
/* automatically destroyed with its parent. Using this function is */
|
|
|
575 |
/* not always mandatory. */
|
|
|
576 |
/* */
|
|
|
577 |
/* <Input> */
|
|
|
578 |
/* slot :: A handle to a target glyph slot. */
|
|
|
579 |
/* */
|
|
|
580 |
FT_BASE( void )
|
|
|
581 |
FT_Done_GlyphSlot( FT_GlyphSlot slot );
|
|
|
582 |
|
|
|
583 |
/* */
|
|
|
584 |
|
|
|
585 |
#define FT_REQUEST_WIDTH( req ) \
|
|
|
586 |
( (req)->horiResolution \
|
|
|
587 |
? (FT_Pos)( (req)->width * (req)->horiResolution + 36 ) / 72 \
|
|
|
588 |
: (req)->width )
|
|
|
589 |
|
|
|
590 |
#define FT_REQUEST_HEIGHT( req ) \
|
|
|
591 |
( (req)->vertResolution \
|
|
|
592 |
? (FT_Pos)( (req)->height * (req)->vertResolution + 36 ) / 72 \
|
|
|
593 |
: (req)->height )
|
|
|
594 |
|
|
|
595 |
|
|
|
596 |
/* Set the metrics according to a bitmap strike. */
|
|
|
597 |
FT_BASE( void )
|
|
|
598 |
FT_Select_Metrics( FT_Face face,
|
|
|
599 |
FT_ULong strike_index );
|
|
|
600 |
|
|
|
601 |
|
|
|
602 |
/* Set the metrics according to a size request. */
|
|
|
603 |
FT_BASE( void )
|
|
|
604 |
FT_Request_Metrics( FT_Face face,
|
|
|
605 |
FT_Size_Request req );
|
|
|
606 |
|
|
|
607 |
|
|
|
608 |
/* Match a size request against `available_sizes'. */
|
|
|
609 |
FT_BASE( FT_Error )
|
|
|
610 |
FT_Match_Size( FT_Face face,
|
|
|
611 |
FT_Size_Request req,
|
|
|
612 |
FT_Bool ignore_width,
|
|
|
613 |
FT_ULong* size_index );
|
|
|
614 |
|
|
|
615 |
|
|
|
616 |
/* Use the horizontal metrics to synthesize the vertical metrics. */
|
|
|
617 |
/* If `advance' is zero, it is also synthesized. */
|
|
|
618 |
FT_BASE( void )
|
|
|
619 |
ft_synthesize_vertical_metrics( FT_Glyph_Metrics* metrics,
|
|
|
620 |
FT_Pos advance );
|
|
|
621 |
|
|
|
622 |
|
|
|
623 |
/* Free the bitmap of a given glyphslot when needed (i.e., only when it */
|
|
|
624 |
/* was allocated with ft_glyphslot_alloc_bitmap). */
|
|
|
625 |
FT_BASE( void )
|
|
|
626 |
ft_glyphslot_free_bitmap( FT_GlyphSlot slot );
|
|
|
627 |
|
|
|
628 |
|
|
|
629 |
/* Allocate a new bitmap buffer in a glyph slot. */
|
|
|
630 |
FT_BASE( FT_Error )
|
|
|
631 |
ft_glyphslot_alloc_bitmap( FT_GlyphSlot slot,
|
|
|
632 |
FT_ULong size );
|
|
|
633 |
|
|
|
634 |
|
|
|
635 |
/* Set the bitmap buffer in a glyph slot to a given pointer. The buffer */
|
|
|
636 |
/* will not be freed by a later call to ft_glyphslot_free_bitmap. */
|
|
|
637 |
FT_BASE( void )
|
|
|
638 |
ft_glyphslot_set_bitmap( FT_GlyphSlot slot,
|
|
|
639 |
FT_Byte* buffer );
|
|
|
640 |
|
|
|
641 |
|
|
|
642 |
/*************************************************************************/
|
|
|
643 |
/*************************************************************************/
|
|
|
644 |
/*************************************************************************/
|
|
|
645 |
/**** ****/
|
|
|
646 |
/**** ****/
|
|
|
647 |
/**** R E N D E R E R S ****/
|
|
|
648 |
/**** ****/
|
|
|
649 |
/**** ****/
|
|
|
650 |
/*************************************************************************/
|
|
|
651 |
/*************************************************************************/
|
|
|
652 |
/*************************************************************************/
|
|
|
653 |
|
|
|
654 |
|
|
|
655 |
#define FT_RENDERER( x ) ((FT_Renderer)( x ))
|
|
|
656 |
#define FT_GLYPH( x ) ((FT_Glyph)( x ))
|
|
|
657 |
#define FT_BITMAP_GLYPH( x ) ((FT_BitmapGlyph)( x ))
|
|
|
658 |
#define FT_OUTLINE_GLYPH( x ) ((FT_OutlineGlyph)( x ))
|
|
|
659 |
|
|
|
660 |
|
|
|
661 |
typedef struct FT_RendererRec_
|
|
|
662 |
{
|
|
|
663 |
FT_ModuleRec root;
|
|
|
664 |
FT_Renderer_Class* clazz;
|
|
|
665 |
FT_Glyph_Format glyph_format;
|
|
|
666 |
FT_Glyph_Class glyph_class;
|
|
|
667 |
|
|
|
668 |
FT_Raster raster;
|
|
|
669 |
FT_Raster_Render_Func raster_render;
|
|
|
670 |
FT_Renderer_RenderFunc render;
|
|
|
671 |
|
|
|
672 |
} FT_RendererRec;
|
|
|
673 |
|
|
|
674 |
|
|
|
675 |
/*************************************************************************/
|
|
|
676 |
/*************************************************************************/
|
|
|
677 |
/*************************************************************************/
|
|
|
678 |
/**** ****/
|
|
|
679 |
/**** ****/
|
|
|
680 |
/**** F O N T D R I V E R S ****/
|
|
|
681 |
/**** ****/
|
|
|
682 |
/**** ****/
|
|
|
683 |
/*************************************************************************/
|
|
|
684 |
/*************************************************************************/
|
|
|
685 |
/*************************************************************************/
|
|
|
686 |
|
|
|
687 |
|
|
|
688 |
/* typecast a module into a driver easily */
|
|
|
689 |
#define FT_DRIVER( x ) ((FT_Driver)(x))
|
|
|
690 |
|
|
|
691 |
/* typecast a module as a driver, and get its driver class */
|
|
|
692 |
#define FT_DRIVER_CLASS( x ) FT_DRIVER( x )->clazz
|
|
|
693 |
|
|
|
694 |
|
|
|
695 |
/*************************************************************************/
|
|
|
696 |
/* */
|
|
|
697 |
/* <Struct> */
|
|
|
698 |
/* FT_DriverRec */
|
|
|
699 |
/* */
|
|
|
700 |
/* <Description> */
|
|
|
701 |
/* The root font driver class. A font driver is responsible for */
|
|
|
702 |
/* managing and loading font files of a given format. */
|
|
|
703 |
/* */
|
|
|
704 |
/* <Fields> */
|
|
|
705 |
/* root :: Contains the fields of the root module class. */
|
|
|
706 |
/* */
|
|
|
707 |
/* clazz :: A pointer to the font driver's class. Note that */
|
|
|
708 |
/* this is NOT root.clazz. `class' wasn't used */
|
|
|
709 |
/* as it is a reserved word in C++. */
|
|
|
710 |
/* */
|
|
|
711 |
/* faces_list :: The list of faces currently opened by this */
|
|
|
712 |
/* driver. */
|
|
|
713 |
/* */
|
|
|
714 |
/* extensions :: A typeless pointer to the driver's extensions */
|
|
|
715 |
/* registry, if they are supported through the */
|
|
|
716 |
/* configuration macro FT_CONFIG_OPTION_EXTENSIONS. */
|
|
|
717 |
/* */
|
|
|
718 |
/* glyph_loader :: The glyph loader for all faces managed by this */
|
|
|
719 |
/* driver. This object isn't defined for unscalable */
|
|
|
720 |
/* formats. */
|
|
|
721 |
/* */
|
|
|
722 |
typedef struct FT_DriverRec_
|
|
|
723 |
{
|
|
|
724 |
FT_ModuleRec root;
|
|
|
725 |
FT_Driver_Class clazz;
|
|
|
726 |
|
|
|
727 |
FT_ListRec faces_list;
|
|
|
728 |
void* extensions;
|
|
|
729 |
|
|
|
730 |
FT_GlyphLoader glyph_loader;
|
|
|
731 |
|
|
|
732 |
} FT_DriverRec;
|
|
|
733 |
|
|
|
734 |
|
|
|
735 |
/*************************************************************************/
|
|
|
736 |
/*************************************************************************/
|
|
|
737 |
/*************************************************************************/
|
|
|
738 |
/**** ****/
|
|
|
739 |
/**** ****/
|
|
|
740 |
/**** L I B R A R I E S ****/
|
|
|
741 |
/**** ****/
|
|
|
742 |
/**** ****/
|
|
|
743 |
/*************************************************************************/
|
|
|
744 |
/*************************************************************************/
|
|
|
745 |
/*************************************************************************/
|
|
|
746 |
|
|
|
747 |
|
|
|
748 |
/* This hook is used by the TrueType debugger. It must be set to an */
|
|
|
749 |
/* alternate truetype bytecode interpreter function. */
|
|
|
750 |
#define FT_DEBUG_HOOK_TRUETYPE 0
|
|
|
751 |
|
|
|
752 |
|
|
|
753 |
/* Set this debug hook to a non-null pointer to force unpatented hinting */
|
|
|
754 |
/* for all faces when both TT_USE_BYTECODE_INTERPRETER and */
|
|
|
755 |
/* TT_CONFIG_OPTION_UNPATENTED_HINTING are defined. This is only used */
|
|
|
756 |
/* during debugging. */
|
|
|
757 |
#define FT_DEBUG_HOOK_UNPATENTED_HINTING 1
|
|
|
758 |
|
|
|
759 |
|
|
|
760 |
typedef void (*FT_Bitmap_LcdFilterFunc)( FT_Bitmap* bitmap,
|
|
|
761 |
FT_Render_Mode render_mode,
|
|
|
762 |
FT_Library library );
|
|
|
763 |
|
|
|
764 |
|
|
|
765 |
/*************************************************************************/
|
|
|
766 |
/* */
|
|
|
767 |
/* <Struct> */
|
|
|
768 |
/* FT_LibraryRec */
|
|
|
769 |
/* */
|
|
|
770 |
/* <Description> */
|
|
|
771 |
/* The FreeType library class. This is the root of all FreeType */
|
|
|
772 |
/* data. Use FT_New_Library() to create a library object, and */
|
|
|
773 |
/* FT_Done_Library() to discard it and all child objects. */
|
|
|
774 |
/* */
|
|
|
775 |
/* <Fields> */
|
|
|
776 |
/* memory :: The library's memory object. Manages memory */
|
|
|
777 |
/* allocation. */
|
|
|
778 |
/* */
|
|
|
779 |
/* generic :: Client data variable. Used to extend the */
|
|
|
780 |
/* Library class by higher levels and clients. */
|
|
|
781 |
/* */
|
|
|
782 |
/* version_major :: The major version number of the library. */
|
|
|
783 |
/* */
|
|
|
784 |
/* version_minor :: The minor version number of the library. */
|
|
|
785 |
/* */
|
|
|
786 |
/* version_patch :: The current patch level of the library. */
|
|
|
787 |
/* */
|
|
|
788 |
/* num_modules :: The number of modules currently registered */
|
|
|
789 |
/* within this library. This is set to 0 for new */
|
|
|
790 |
/* libraries. New modules are added through the */
|
|
|
791 |
/* FT_Add_Module() API function. */
|
|
|
792 |
/* */
|
|
|
793 |
/* modules :: A table used to store handles to the currently */
|
|
|
794 |
/* registered modules. Note that each font driver */
|
|
|
795 |
/* contains a list of its opened faces. */
|
|
|
796 |
/* */
|
|
|
797 |
/* renderers :: The list of renderers currently registered */
|
|
|
798 |
/* within the library. */
|
|
|
799 |
/* */
|
|
|
800 |
/* cur_renderer :: The current outline renderer. This is a */
|
|
|
801 |
/* shortcut used to avoid parsing the list on */
|
|
|
802 |
/* each call to FT_Outline_Render(). It is a */
|
|
|
803 |
/* handle to the current renderer for the */
|
|
|
804 |
/* FT_GLYPH_FORMAT_OUTLINE format. */
|
|
|
805 |
/* */
|
|
|
806 |
/* auto_hinter :: XXX */
|
|
|
807 |
/* */
|
|
|
808 |
/* raster_pool :: The raster object's render pool. This can */
|
|
|
809 |
/* ideally be changed dynamically at run-time. */
|
|
|
810 |
/* */
|
|
|
811 |
/* raster_pool_size :: The size of the render pool in bytes. */
|
|
|
812 |
/* */
|
|
|
813 |
/* debug_hooks :: XXX */
|
|
|
814 |
/* */
|
|
|
815 |
/* lcd_filter :: If subpixel rendering is activated, the */
|
|
|
816 |
/* selected LCD filter mode. */
|
|
|
817 |
/* */
|
|
|
818 |
/* lcd_extra :: If subpixel rendering is activated, the number */
|
|
|
819 |
/* of extra pixels needed for the LCD filter. */
|
|
|
820 |
/* */
|
|
|
821 |
/* lcd_weights :: If subpixel rendering is activated, the LCD */
|
|
|
822 |
/* filter weights, if any. */
|
|
|
823 |
/* */
|
|
|
824 |
/* lcd_filter_func :: If subpixel rendering is activated, the LCD */
|
|
|
825 |
/* filtering callback function. */
|
|
|
826 |
/* */
|
|
|
827 |
/* pic_container :: Contains global structs and tables, instead */
|
|
|
828 |
/* of defining them globallly. */
|
|
|
829 |
/* */
|
|
|
830 |
/* refcount :: A counter initialized to~1 at the time an */
|
|
|
831 |
/* @FT_Library structure is created. */
|
|
|
832 |
/* @FT_Reference_Library increments this counter, */
|
|
|
833 |
/* and @FT_Done_Library only destroys a library */
|
|
|
834 |
/* if the counter is~1, otherwise it simply */
|
|
|
835 |
/* decrements it. */
|
|
|
836 |
/* */
|
|
|
837 |
typedef struct FT_LibraryRec_
|
|
|
838 |
{
|
|
|
839 |
FT_Memory memory; /* library's memory manager */
|
|
|
840 |
|
|
|
841 |
FT_Generic generic;
|
|
|
842 |
|
|
|
843 |
FT_Int version_major;
|
|
|
844 |
FT_Int version_minor;
|
|
|
845 |
FT_Int version_patch;
|
|
|
846 |
|
|
|
847 |
FT_UInt num_modules;
|
|
|
848 |
FT_Module modules[FT_MAX_MODULES]; /* module objects */
|
|
|
849 |
|
|
|
850 |
FT_ListRec renderers; /* list of renderers */
|
|
|
851 |
FT_Renderer cur_renderer; /* current outline renderer */
|
|
|
852 |
FT_Module auto_hinter;
|
|
|
853 |
|
|
|
854 |
FT_Byte* raster_pool; /* scan-line conversion */
|
|
|
855 |
/* render pool */
|
|
|
856 |
FT_ULong raster_pool_size; /* size of render pool in bytes */
|
|
|
857 |
|
|
|
858 |
FT_DebugHook_Func debug_hooks[4];
|
|
|
859 |
|
|
|
860 |
#ifdef FT_CONFIG_OPTION_SUBPIXEL_RENDERING
|
|
|
861 |
FT_LcdFilter lcd_filter;
|
|
|
862 |
FT_Int lcd_extra; /* number of extra pixels */
|
|
|
863 |
FT_Byte lcd_weights[7]; /* filter weights, if any */
|
|
|
864 |
FT_Bitmap_LcdFilterFunc lcd_filter_func; /* filtering callback */
|
|
|
865 |
#endif
|
|
|
866 |
|
|
|
867 |
#ifdef FT_CONFIG_OPTION_PIC
|
|
|
868 |
FT_PIC_Container pic_container;
|
|
|
869 |
#endif
|
|
|
870 |
|
|
|
871 |
FT_UInt refcount;
|
|
|
872 |
|
|
|
873 |
} FT_LibraryRec;
|
|
|
874 |
|
|
|
875 |
|
|
|
876 |
FT_BASE( FT_Renderer )
|
|
|
877 |
FT_Lookup_Renderer( FT_Library library,
|
|
|
878 |
FT_Glyph_Format format,
|
|
|
879 |
FT_ListNode* node );
|
|
|
880 |
|
|
|
881 |
FT_BASE( FT_Error )
|
|
|
882 |
FT_Render_Glyph_Internal( FT_Library library,
|
|
|
883 |
FT_GlyphSlot slot,
|
|
|
884 |
FT_Render_Mode render_mode );
|
|
|
885 |
|
|
|
886 |
typedef const char*
|
|
|
887 |
(*FT_Face_GetPostscriptNameFunc)( FT_Face face );
|
|
|
888 |
|
|
|
889 |
typedef FT_Error
|
|
|
890 |
(*FT_Face_GetGlyphNameFunc)( FT_Face face,
|
|
|
891 |
FT_UInt glyph_index,
|
|
|
892 |
FT_Pointer buffer,
|
|
|
893 |
FT_UInt buffer_max );
|
|
|
894 |
|
|
|
895 |
typedef FT_UInt
|
|
|
896 |
(*FT_Face_GetGlyphNameIndexFunc)( FT_Face face,
|
|
|
897 |
FT_String* glyph_name );
|
|
|
898 |
|
|
|
899 |
|
|
|
900 |
#ifndef FT_CONFIG_OPTION_NO_DEFAULT_SYSTEM
|
|
|
901 |
|
|
|
902 |
/*************************************************************************/
|
|
|
903 |
/* */
|
|
|
904 |
/* <Function> */
|
|
|
905 |
/* FT_New_Memory */
|
|
|
906 |
/* */
|
|
|
907 |
/* <Description> */
|
|
|
908 |
/* Creates a new memory object. */
|
|
|
909 |
/* */
|
|
|
910 |
/* <Return> */
|
|
|
911 |
/* A pointer to the new memory object. 0 in case of error. */
|
|
|
912 |
/* */
|
|
|
913 |
FT_BASE( FT_Memory )
|
|
|
914 |
FT_New_Memory( void );
|
|
|
915 |
|
|
|
916 |
|
|
|
917 |
/*************************************************************************/
|
|
|
918 |
/* */
|
|
|
919 |
/* <Function> */
|
|
|
920 |
/* FT_Done_Memory */
|
|
|
921 |
/* */
|
|
|
922 |
/* <Description> */
|
|
|
923 |
/* Discards memory manager. */
|
|
|
924 |
/* */
|
|
|
925 |
/* <Input> */
|
|
|
926 |
/* memory :: A handle to the memory manager. */
|
|
|
927 |
/* */
|
|
|
928 |
FT_BASE( void )
|
|
|
929 |
FT_Done_Memory( FT_Memory memory );
|
|
|
930 |
|
|
|
931 |
#endif /* !FT_CONFIG_OPTION_NO_DEFAULT_SYSTEM */
|
|
|
932 |
|
|
|
933 |
|
|
|
934 |
/* Define default raster's interface. The default raster is located in */
|
|
|
935 |
/* `src/base/ftraster.c'. */
|
|
|
936 |
/* */
|
|
|
937 |
/* Client applications can register new rasters through the */
|
|
|
938 |
/* FT_Set_Raster() API. */
|
|
|
939 |
|
|
|
940 |
#ifndef FT_NO_DEFAULT_RASTER
|
|
|
941 |
FT_EXPORT_VAR( FT_Raster_Funcs ) ft_default_raster;
|
|
|
942 |
#endif
|
|
|
943 |
|
|
|
944 |
/*************************************************************************/
|
|
|
945 |
/*************************************************************************/
|
|
|
946 |
/*************************************************************************/
|
|
|
947 |
/**** ****/
|
|
|
948 |
/**** ****/
|
|
|
949 |
/**** PIC-Support Macros for ftimage.h ****/
|
|
|
950 |
/**** ****/
|
|
|
951 |
/**** ****/
|
|
|
952 |
/*************************************************************************/
|
|
|
953 |
/*************************************************************************/
|
|
|
954 |
/*************************************************************************/
|
|
|
955 |
|
|
|
956 |
|
|
|
957 |
/*************************************************************************/
|
|
|
958 |
/* */
|
|
|
959 |
/* <Macro> */
|
|
|
960 |
/* FT_DEFINE_OUTLINE_FUNCS */
|
|
|
961 |
/* */
|
|
|
962 |
/* <Description> */
|
|
|
963 |
/* Used to initialize an instance of FT_Outline_Funcs struct. */
|
|
|
964 |
/* When FT_CONFIG_OPTION_PIC is defined an init funtion will need to */
|
|
|
965 |
/* called with a pre-allocated stracture to be filled. */
|
|
|
966 |
/* When FT_CONFIG_OPTION_PIC is not defined the struct will be */
|
|
|
967 |
/* allocated in the global scope (or the scope where the macro */
|
|
|
968 |
/* is used). */
|
|
|
969 |
/* */
|
|
|
970 |
#ifndef FT_CONFIG_OPTION_PIC
|
|
|
971 |
|
|
|
972 |
#define FT_DEFINE_OUTLINE_FUNCS(class_, move_to_, line_to_, conic_to_, \
|
|
|
973 |
cubic_to_, shift_, delta_) \
|
|
|
974 |
static const FT_Outline_Funcs class_ = \
|
|
|
975 |
{ \
|
|
|
976 |
move_to_, line_to_, conic_to_, cubic_to_, shift_, delta_ \
|
|
|
977 |
};
|
|
|
978 |
|
|
|
979 |
#else /* FT_CONFIG_OPTION_PIC */
|
|
|
980 |
|
|
|
981 |
#define FT_DEFINE_OUTLINE_FUNCS(class_, move_to_, line_to_, conic_to_, \
|
|
|
982 |
cubic_to_, shift_, delta_) \
|
|
|
983 |
static FT_Error \
|
|
|
984 |
Init_Class_##class_( FT_Outline_Funcs* clazz ) \
|
|
|
985 |
{ \
|
|
|
986 |
clazz->move_to = move_to_; \
|
|
|
987 |
clazz->line_to = line_to_; \
|
|
|
988 |
clazz->conic_to = conic_to_; \
|
|
|
989 |
clazz->cubic_to = cubic_to_; \
|
|
|
990 |
clazz->shift = shift_; \
|
|
|
991 |
clazz->delta = delta_; \
|
|
|
992 |
return FT_Err_Ok; \
|
|
|
993 |
}
|
|
|
994 |
|
|
|
995 |
#endif /* FT_CONFIG_OPTION_PIC */
|
|
|
996 |
|
|
|
997 |
/*************************************************************************/
|
|
|
998 |
/* */
|
|
|
999 |
/* <Macro> */
|
|
|
1000 |
/* FT_DEFINE_RASTER_FUNCS */
|
|
|
1001 |
/* */
|
|
|
1002 |
/* <Description> */
|
|
|
1003 |
/* Used to initialize an instance of FT_Raster_Funcs struct. */
|
|
|
1004 |
/* When FT_CONFIG_OPTION_PIC is defined an init funtion will need to */
|
|
|
1005 |
/* called with a pre-allocated stracture to be filled. */
|
|
|
1006 |
/* When FT_CONFIG_OPTION_PIC is not defined the struct will be */
|
|
|
1007 |
/* allocated in the global scope (or the scope where the macro */
|
|
|
1008 |
/* is used). */
|
|
|
1009 |
/* */
|
|
|
1010 |
#ifndef FT_CONFIG_OPTION_PIC
|
|
|
1011 |
|
|
|
1012 |
#define FT_DEFINE_RASTER_FUNCS(class_, glyph_format_, raster_new_, \
|
|
|
1013 |
raster_reset_, raster_set_mode_, \
|
|
|
1014 |
raster_render_, raster_done_) \
|
|
|
1015 |
const FT_Raster_Funcs class_ = \
|
|
|
1016 |
{ \
|
|
|
1017 |
glyph_format_, raster_new_, raster_reset_, \
|
|
|
1018 |
raster_set_mode_, raster_render_, raster_done_ \
|
|
|
1019 |
};
|
|
|
1020 |
|
|
|
1021 |
#else /* FT_CONFIG_OPTION_PIC */
|
|
|
1022 |
|
|
|
1023 |
#define FT_DEFINE_RASTER_FUNCS(class_, glyph_format_, raster_new_, \
|
|
|
1024 |
raster_reset_, raster_set_mode_, raster_render_, raster_done_) \
|
|
|
1025 |
void \
|
|
|
1026 |
FT_Init_Class_##class_( FT_Raster_Funcs* clazz ) \
|
|
|
1027 |
{ \
|
|
|
1028 |
clazz->glyph_format = glyph_format_; \
|
|
|
1029 |
clazz->raster_new = raster_new_; \
|
|
|
1030 |
clazz->raster_reset = raster_reset_; \
|
|
|
1031 |
clazz->raster_set_mode = raster_set_mode_; \
|
|
|
1032 |
clazz->raster_render = raster_render_; \
|
|
|
1033 |
clazz->raster_done = raster_done_; \
|
|
|
1034 |
}
|
|
|
1035 |
|
|
|
1036 |
#endif /* FT_CONFIG_OPTION_PIC */
|
|
|
1037 |
|
|
|
1038 |
/*************************************************************************/
|
|
|
1039 |
/*************************************************************************/
|
|
|
1040 |
/*************************************************************************/
|
|
|
1041 |
/**** ****/
|
|
|
1042 |
/**** ****/
|
|
|
1043 |
/**** PIC-Support Macros for ftrender.h ****/
|
|
|
1044 |
/**** ****/
|
|
|
1045 |
/**** ****/
|
|
|
1046 |
/*************************************************************************/
|
|
|
1047 |
/*************************************************************************/
|
|
|
1048 |
/*************************************************************************/
|
|
|
1049 |
|
|
|
1050 |
|
|
|
1051 |
|
|
|
1052 |
/*************************************************************************/
|
|
|
1053 |
/* */
|
|
|
1054 |
/* <Macro> */
|
|
|
1055 |
/* FT_DEFINE_GLYPH */
|
|
|
1056 |
/* */
|
|
|
1057 |
/* <Description> */
|
|
|
1058 |
/* Used to initialize an instance of FT_Glyph_Class struct. */
|
|
|
1059 |
/* When FT_CONFIG_OPTION_PIC is defined an init funtion will need to */
|
|
|
1060 |
/* called with a pre-allocated stracture to be filled. */
|
|
|
1061 |
/* When FT_CONFIG_OPTION_PIC is not defined the struct will be */
|
|
|
1062 |
/* allocated in the global scope (or the scope where the macro */
|
|
|
1063 |
/* is used). */
|
|
|
1064 |
/* */
|
|
|
1065 |
#ifndef FT_CONFIG_OPTION_PIC
|
|
|
1066 |
|
|
|
1067 |
#define FT_DEFINE_GLYPH(class_, size_, format_, init_, done_, copy_, \
|
|
|
1068 |
transform_, bbox_, prepare_) \
|
|
|
1069 |
FT_CALLBACK_TABLE_DEF \
|
|
|
1070 |
const FT_Glyph_Class class_ = \
|
|
|
1071 |
{ \
|
|
|
1072 |
size_, format_, init_, done_, copy_, transform_, bbox_, prepare_ \
|
|
|
1073 |
};
|
|
|
1074 |
|
|
|
1075 |
#else /* FT_CONFIG_OPTION_PIC */
|
|
|
1076 |
|
|
|
1077 |
#define FT_DEFINE_GLYPH(class_, size_, format_, init_, done_, copy_, \
|
|
|
1078 |
transform_, bbox_, prepare_) \
|
|
|
1079 |
void \
|
|
|
1080 |
FT_Init_Class_##class_( FT_Glyph_Class* clazz ) \
|
|
|
1081 |
{ \
|
|
|
1082 |
clazz->glyph_size = size_; \
|
|
|
1083 |
clazz->glyph_format = format_; \
|
|
|
1084 |
clazz->glyph_init = init_; \
|
|
|
1085 |
clazz->glyph_done = done_; \
|
|
|
1086 |
clazz->glyph_copy = copy_; \
|
|
|
1087 |
clazz->glyph_transform = transform_; \
|
|
|
1088 |
clazz->glyph_bbox = bbox_; \
|
|
|
1089 |
clazz->glyph_prepare = prepare_; \
|
|
|
1090 |
}
|
|
|
1091 |
|
|
|
1092 |
#endif /* FT_CONFIG_OPTION_PIC */
|
|
|
1093 |
|
|
|
1094 |
/*************************************************************************/
|
|
|
1095 |
/* */
|
|
|
1096 |
/* <Macro> */
|
|
|
1097 |
/* FT_DECLARE_RENDERER */
|
|
|
1098 |
/* */
|
|
|
1099 |
/* <Description> */
|
|
|
1100 |
/* Used to create a forward declaration of a */
|
|
|
1101 |
/* FT_Renderer_Class stract instance. */
|
|
|
1102 |
/* */
|
|
|
1103 |
/* <Macro> */
|
|
|
1104 |
/* FT_DEFINE_RENDERER */
|
|
|
1105 |
/* */
|
|
|
1106 |
/* <Description> */
|
|
|
1107 |
/* Used to initialize an instance of FT_Renderer_Class struct. */
|
|
|
1108 |
/* */
|
|
|
1109 |
/* When FT_CONFIG_OPTION_PIC is defined a Create funtion will need */
|
|
|
1110 |
/* to called with a pointer where the allocated stracture is returned.*/
|
|
|
1111 |
/* And when it is no longer needed a Destroy function needs */
|
|
|
1112 |
/* to be called to release that allocation. */
|
|
|
1113 |
/* fcinit.c (ft_create_default_module_classes) already contains */
|
|
|
1114 |
/* a mechanism to call these functions for the default modules */
|
|
|
1115 |
/* described in ftmodule.h */
|
|
|
1116 |
/* */
|
|
|
1117 |
/* Notice that the created Create and Destroy functions call */
|
|
|
1118 |
/* pic_init and pic_free function to allow you to manually allocate */
|
|
|
1119 |
/* and initialize any additional global data, like module specific */
|
|
|
1120 |
/* interface, and put them in the global pic container defined in */
|
|
|
1121 |
/* ftpic.h. if you don't need them just implement the functions as */
|
|
|
1122 |
/* empty to resolve the link error. */
|
|
|
1123 |
/* */
|
|
|
1124 |
/* When FT_CONFIG_OPTION_PIC is not defined the struct will be */
|
|
|
1125 |
/* allocated in the global scope (or the scope where the macro */
|
|
|
1126 |
/* is used). */
|
|
|
1127 |
/* */
|
|
|
1128 |
#ifndef FT_CONFIG_OPTION_PIC
|
|
|
1129 |
|
|
|
1130 |
#define FT_DECLARE_RENDERER(class_) \
|
|
|
1131 |
FT_EXPORT_VAR( const FT_Renderer_Class ) class_;
|
|
|
1132 |
|
|
|
1133 |
#define FT_DEFINE_RENDERER(class_, \
|
|
|
1134 |
flags_, size_, name_, version_, requires_, \
|
|
|
1135 |
interface_, init_, done_, get_interface_, \
|
|
|
1136 |
glyph_format_, render_glyph_, transform_glyph_, \
|
|
|
1137 |
get_glyph_cbox_, set_mode_, raster_class_ ) \
|
|
|
1138 |
FT_CALLBACK_TABLE_DEF \
|
|
|
1139 |
const FT_Renderer_Class class_ = \
|
|
|
1140 |
{ \
|
|
|
1141 |
FT_DEFINE_ROOT_MODULE(flags_,size_,name_,version_,requires_, \
|
|
|
1142 |
interface_,init_,done_,get_interface_) \
|
|
|
1143 |
glyph_format_, \
|
|
|
1144 |
\
|
|
|
1145 |
render_glyph_, \
|
|
|
1146 |
transform_glyph_, \
|
|
|
1147 |
get_glyph_cbox_, \
|
|
|
1148 |
set_mode_, \
|
|
|
1149 |
\
|
|
|
1150 |
raster_class_ \
|
|
|
1151 |
};
|
|
|
1152 |
|
|
|
1153 |
#else /* FT_CONFIG_OPTION_PIC */
|
|
|
1154 |
|
|
|
1155 |
#define FT_DECLARE_RENDERER(class_) FT_DECLARE_MODULE(class_)
|
|
|
1156 |
|
|
|
1157 |
#define FT_DEFINE_RENDERER(class_, \
|
|
|
1158 |
flags_, size_, name_, version_, requires_, \
|
|
|
1159 |
interface_, init_, done_, get_interface_, \
|
|
|
1160 |
glyph_format_, render_glyph_, transform_glyph_, \
|
|
|
1161 |
get_glyph_cbox_, set_mode_, raster_class_ ) \
|
|
|
1162 |
void class_##_pic_free( FT_Library library ); \
|
|
|
1163 |
FT_Error class_##_pic_init( FT_Library library ); \
|
|
|
1164 |
\
|
|
|
1165 |
void \
|
|
|
1166 |
FT_Destroy_Class_##class_( FT_Library library, \
|
|
|
1167 |
FT_Module_Class* clazz ) \
|
|
|
1168 |
{ \
|
|
|
1169 |
FT_Renderer_Class* rclazz = (FT_Renderer_Class*)clazz; \
|
|
|
1170 |
FT_Memory memory = library->memory; \
|
|
|
1171 |
class_##_pic_free( library ); \
|
|
|
1172 |
if ( rclazz ) \
|
|
|
1173 |
FT_FREE( rclazz ); \
|
|
|
1174 |
} \
|
|
|
1175 |
\
|
|
|
1176 |
FT_Error \
|
|
|
1177 |
FT_Create_Class_##class_( FT_Library library, \
|
|
|
1178 |
FT_Module_Class** output_class ) \
|
|
|
1179 |
{ \
|
|
|
1180 |
FT_Renderer_Class* clazz; \
|
|
|
1181 |
FT_Error error; \
|
|
|
1182 |
FT_Memory memory = library->memory; \
|
|
|
1183 |
\
|
|
|
1184 |
if ( FT_ALLOC( clazz, sizeof(*clazz) ) ) \
|
|
|
1185 |
return error; \
|
|
|
1186 |
\
|
|
|
1187 |
error = class_##_pic_init( library ); \
|
|
|
1188 |
if(error) \
|
|
|
1189 |
{ \
|
|
|
1190 |
FT_FREE( clazz ); \
|
|
|
1191 |
return error; \
|
|
|
1192 |
} \
|
|
|
1193 |
\
|
|
|
1194 |
FT_DEFINE_ROOT_MODULE(flags_,size_,name_,version_,requires_, \
|
|
|
1195 |
interface_,init_,done_,get_interface_) \
|
|
|
1196 |
\
|
|
|
1197 |
clazz->glyph_format = glyph_format_; \
|
|
|
1198 |
\
|
|
|
1199 |
clazz->render_glyph = render_glyph_; \
|
|
|
1200 |
clazz->transform_glyph = transform_glyph_; \
|
|
|
1201 |
clazz->get_glyph_cbox = get_glyph_cbox_; \
|
|
|
1202 |
clazz->set_mode = set_mode_; \
|
|
|
1203 |
\
|
|
|
1204 |
clazz->raster_class = raster_class_; \
|
|
|
1205 |
\
|
|
|
1206 |
*output_class = (FT_Module_Class*)clazz; \
|
|
|
1207 |
return FT_Err_Ok; \
|
|
|
1208 |
}
|
|
|
1209 |
|
|
|
1210 |
|
|
|
1211 |
|
|
|
1212 |
#endif /* FT_CONFIG_OPTION_PIC */
|
|
|
1213 |
|
|
|
1214 |
/*************************************************************************/
|
|
|
1215 |
/*************************************************************************/
|
|
|
1216 |
/*************************************************************************/
|
|
|
1217 |
/**** ****/
|
|
|
1218 |
/**** ****/
|
|
|
1219 |
/**** PIC-Support Macros for ftmodapi.h ****/
|
|
|
1220 |
/**** ****/
|
|
|
1221 |
/**** ****/
|
|
|
1222 |
/*************************************************************************/
|
|
|
1223 |
/*************************************************************************/
|
|
|
1224 |
/*************************************************************************/
|
|
|
1225 |
|
|
|
1226 |
|
|
|
1227 |
#ifdef FT_CONFIG_OPTION_PIC
|
|
|
1228 |
|
|
|
1229 |
/*************************************************************************/
|
|
|
1230 |
/* */
|
|
|
1231 |
/* <FuncType> */
|
|
|
1232 |
/* FT_Module_Creator */
|
|
|
1233 |
/* */
|
|
|
1234 |
/* <Description> */
|
|
|
1235 |
/* A function used to create (allocate) a new module class object. */
|
|
|
1236 |
/* The object's members are initialized, but the module itself is */
|
|
|
1237 |
/* not. */
|
|
|
1238 |
/* */
|
|
|
1239 |
/* <Input> */
|
|
|
1240 |
/* memory :: A handle to the memory manager. */
|
|
|
1241 |
/* output_class :: Initialized with the newly allocated class. */
|
|
|
1242 |
/* */
|
|
|
1243 |
typedef FT_Error
|
|
|
1244 |
(*FT_Module_Creator)( FT_Memory memory,
|
|
|
1245 |
FT_Module_Class** output_class );
|
|
|
1246 |
|
|
|
1247 |
/*************************************************************************/
|
|
|
1248 |
/* */
|
|
|
1249 |
/* <FuncType> */
|
|
|
1250 |
/* FT_Module_Destroyer */
|
|
|
1251 |
/* */
|
|
|
1252 |
/* <Description> */
|
|
|
1253 |
/* A function used to destroy (deallocate) a module class object. */
|
|
|
1254 |
/* */
|
|
|
1255 |
/* <Input> */
|
|
|
1256 |
/* memory :: A handle to the memory manager. */
|
|
|
1257 |
/* clazz :: Module class to destroy. */
|
|
|
1258 |
/* */
|
|
|
1259 |
typedef void
|
|
|
1260 |
(*FT_Module_Destroyer)( FT_Memory memory,
|
|
|
1261 |
FT_Module_Class* clazz );
|
|
|
1262 |
|
|
|
1263 |
#endif
|
|
|
1264 |
|
|
|
1265 |
/*************************************************************************/
|
|
|
1266 |
/* */
|
|
|
1267 |
/* <Macro> */
|
|
|
1268 |
/* FT_DECLARE_MODULE */
|
|
|
1269 |
/* */
|
|
|
1270 |
/* <Description> */
|
|
|
1271 |
/* Used to create a forward declaration of a */
|
|
|
1272 |
/* FT_Module_Class stract instance. */
|
|
|
1273 |
/* */
|
|
|
1274 |
/* <Macro> */
|
|
|
1275 |
/* FT_DEFINE_MODULE */
|
|
|
1276 |
/* */
|
|
|
1277 |
/* <Description> */
|
|
|
1278 |
/* Used to initialize an instance of FT_Module_Class struct. */
|
|
|
1279 |
/* */
|
|
|
1280 |
/* When FT_CONFIG_OPTION_PIC is defined a Create funtion will need */
|
|
|
1281 |
/* to called with a pointer where the allocated stracture is returned.*/
|
|
|
1282 |
/* And when it is no longer needed a Destroy function needs */
|
|
|
1283 |
/* to be called to release that allocation. */
|
|
|
1284 |
/* fcinit.c (ft_create_default_module_classes) already contains */
|
|
|
1285 |
/* a mechanism to call these functions for the default modules */
|
|
|
1286 |
/* described in ftmodule.h */
|
|
|
1287 |
/* */
|
|
|
1288 |
/* Notice that the created Create and Destroy functions call */
|
|
|
1289 |
/* pic_init and pic_free function to allow you to manually allocate */
|
|
|
1290 |
/* and initialize any additional global data, like module specific */
|
|
|
1291 |
/* interface, and put them in the global pic container defined in */
|
|
|
1292 |
/* ftpic.h. if you don't need them just implement the functions as */
|
|
|
1293 |
/* empty to resolve the link error. */
|
|
|
1294 |
/* */
|
|
|
1295 |
/* When FT_CONFIG_OPTION_PIC is not defined the struct will be */
|
|
|
1296 |
/* allocated in the global scope (or the scope where the macro */
|
|
|
1297 |
/* is used). */
|
|
|
1298 |
/* */
|
|
|
1299 |
/* <Macro> */
|
|
|
1300 |
/* FT_DEFINE_ROOT_MODULE */
|
|
|
1301 |
/* */
|
|
|
1302 |
/* <Description> */
|
|
|
1303 |
/* Used to initialize an instance of FT_Module_Class struct inside */
|
|
|
1304 |
/* another stract that contains it or in a function that initializes */
|
|
|
1305 |
/* that containing stract */
|
|
|
1306 |
/* */
|
|
|
1307 |
#ifndef FT_CONFIG_OPTION_PIC
|
|
|
1308 |
|
|
|
1309 |
#define FT_DECLARE_MODULE(class_) \
|
|
|
1310 |
FT_CALLBACK_TABLE \
|
|
|
1311 |
const FT_Module_Class class_; \
|
|
|
1312 |
|
|
|
1313 |
#define FT_DEFINE_ROOT_MODULE(flags_, size_, name_, version_, requires_, \
|
|
|
1314 |
interface_, init_, done_, get_interface_) \
|
|
|
1315 |
{ \
|
|
|
1316 |
flags_, \
|
|
|
1317 |
size_, \
|
|
|
1318 |
\
|
|
|
1319 |
name_, \
|
|
|
1320 |
version_, \
|
|
|
1321 |
requires_, \
|
|
|
1322 |
\
|
|
|
1323 |
interface_, \
|
|
|
1324 |
\
|
|
|
1325 |
init_, \
|
|
|
1326 |
done_, \
|
|
|
1327 |
get_interface_, \
|
|
|
1328 |
},
|
|
|
1329 |
|
|
|
1330 |
#define FT_DEFINE_MODULE(class_, flags_, size_, name_, version_, requires_, \
|
|
|
1331 |
interface_, init_, done_, get_interface_) \
|
|
|
1332 |
FT_CALLBACK_TABLE_DEF \
|
|
|
1333 |
const FT_Module_Class class_ = \
|
|
|
1334 |
{ \
|
|
|
1335 |
flags_, \
|
|
|
1336 |
size_, \
|
|
|
1337 |
\
|
|
|
1338 |
name_, \
|
|
|
1339 |
version_, \
|
|
|
1340 |
requires_, \
|
|
|
1341 |
\
|
|
|
1342 |
interface_, \
|
|
|
1343 |
\
|
|
|
1344 |
init_, \
|
|
|
1345 |
done_, \
|
|
|
1346 |
get_interface_, \
|
|
|
1347 |
};
|
|
|
1348 |
|
|
|
1349 |
|
|
|
1350 |
#else /* FT_CONFIG_OPTION_PIC */
|
|
|
1351 |
|
|
|
1352 |
#define FT_DECLARE_MODULE(class_) \
|
|
|
1353 |
FT_Error FT_Create_Class_##class_( FT_Library library, \
|
|
|
1354 |
FT_Module_Class** output_class ); \
|
|
|
1355 |
void FT_Destroy_Class_##class_( FT_Library library, \
|
|
|
1356 |
FT_Module_Class* clazz );
|
|
|
1357 |
|
|
|
1358 |
#define FT_DEFINE_ROOT_MODULE(flags_, size_, name_, version_, requires_, \
|
|
|
1359 |
interface_, init_, done_, get_interface_) \
|
|
|
1360 |
clazz->root.module_flags = flags_; \
|
|
|
1361 |
clazz->root.module_size = size_; \
|
|
|
1362 |
clazz->root.module_name = name_; \
|
|
|
1363 |
clazz->root.module_version = version_; \
|
|
|
1364 |
clazz->root.module_requires = requires_; \
|
|
|
1365 |
\
|
|
|
1366 |
clazz->root.module_interface = interface_; \
|
|
|
1367 |
\
|
|
|
1368 |
clazz->root.module_init = init_; \
|
|
|
1369 |
clazz->root.module_done = done_; \
|
|
|
1370 |
clazz->root.get_interface = get_interface_;
|
|
|
1371 |
|
|
|
1372 |
#define FT_DEFINE_MODULE(class_, flags_, size_, name_, version_, requires_, \
|
|
|
1373 |
interface_, init_, done_, get_interface_) \
|
|
|
1374 |
void class_##_pic_free( FT_Library library ); \
|
|
|
1375 |
FT_Error class_##_pic_init( FT_Library library ); \
|
|
|
1376 |
\
|
|
|
1377 |
void \
|
|
|
1378 |
FT_Destroy_Class_##class_( FT_Library library, \
|
|
|
1379 |
FT_Module_Class* clazz ) \
|
|
|
1380 |
{ \
|
|
|
1381 |
FT_Memory memory = library->memory; \
|
|
|
1382 |
class_##_pic_free( library ); \
|
|
|
1383 |
if ( clazz ) \
|
|
|
1384 |
FT_FREE( clazz ); \
|
|
|
1385 |
} \
|
|
|
1386 |
\
|
|
|
1387 |
FT_Error \
|
|
|
1388 |
FT_Create_Class_##class_( FT_Library library, \
|
|
|
1389 |
FT_Module_Class** output_class ) \
|
|
|
1390 |
{ \
|
|
|
1391 |
FT_Memory memory = library->memory; \
|
|
|
1392 |
FT_Module_Class* clazz; \
|
|
|
1393 |
FT_Error error; \
|
|
|
1394 |
\
|
|
|
1395 |
if ( FT_ALLOC( clazz, sizeof(*clazz) ) ) \
|
|
|
1396 |
return error; \
|
|
|
1397 |
error = class_##_pic_init( library ); \
|
|
|
1398 |
if(error) \
|
|
|
1399 |
{ \
|
|
|
1400 |
FT_FREE( clazz ); \
|
|
|
1401 |
return error; \
|
|
|
1402 |
} \
|
|
|
1403 |
\
|
|
|
1404 |
clazz->module_flags = flags_; \
|
|
|
1405 |
clazz->module_size = size_; \
|
|
|
1406 |
clazz->module_name = name_; \
|
|
|
1407 |
clazz->module_version = version_; \
|
|
|
1408 |
clazz->module_requires = requires_; \
|
|
|
1409 |
\
|
|
|
1410 |
clazz->module_interface = interface_; \
|
|
|
1411 |
\
|
|
|
1412 |
clazz->module_init = init_; \
|
|
|
1413 |
clazz->module_done = done_; \
|
|
|
1414 |
clazz->get_interface = get_interface_; \
|
|
|
1415 |
\
|
|
|
1416 |
*output_class = clazz; \
|
|
|
1417 |
return FT_Err_Ok; \
|
|
|
1418 |
}
|
|
|
1419 |
|
|
|
1420 |
#endif /* FT_CONFIG_OPTION_PIC */
|
|
|
1421 |
|
|
|
1422 |
|
|
|
1423 |
FT_END_HEADER
|
|
|
1424 |
|
|
|
1425 |
#endif /* __FTOBJS_H__ */
|
|
|
1426 |
|
|
|
1427 |
|
|
|
1428 |
/* END */
|