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kc3-lang/freetype/src/cff/cffgload.h
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Author :
Werner Lemberg
Date : 2013-06-03 12:41:58
Hash : 2429dc3d
Message : Add CFF_CONFIG_OPTION_OLD_ENGINE configuration option. This controls whether the old FreeType CFF engine gets compiled into FreeType. It is now disabled by default. * devel/ftoption.h, include/freetype/config/ftoption.h (CFF_CONFIG_OPTION_OLD_ENGINE): New macro. * src/cff/cffdrivr.c (cff_property_set), src/cff/cffgload.c (CFF_Operator, cff_argument_counts, cff_builder_add_point, cff_operator_seac, cff_decoder_parse_charstrings, cff_slot_load), src/cff/cffgload.h, src/cff/cffobjs.c (cff_driver_init): Use CFF_CONFIG_OPTION_OLD_ENGINE to guard the affected code. * docs/CHANGES: Updated.
- src/cff/cffgload.h
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/***************************************************************************/ /* */ /* cffgload.h */ /* */ /* OpenType Glyph Loader (specification). */ /* */ /* Copyright 1996-2004, 2006-2009, 2013 by */ /* David Turner, Robert Wilhelm, and Werner Lemberg. */ /* */ /* This file is part of the FreeType project, and may only be used, */ /* modified, and distributed under the terms of the FreeType project */ /* license, LICENSE.TXT. By continuing to use, modify, or distribute */ /* this file you indicate that you have read the license and */ /* understand and accept it fully. */ /* */ /***************************************************************************/ #ifndef __CFFGLOAD_H__ #define __CFFGLOAD_H__ #include <ft2build.h> #include FT_FREETYPE_H #include "cffobjs.h" FT_BEGIN_HEADER #define CFF_MAX_OPERANDS 48 #define CFF_MAX_SUBRS_CALLS 32 #define CFF_MAX_TRANS_ELEMENTS 32 /*************************************************************************/ /* */ /* <Structure> */ /* CFF_Builder */ /* */ /* <Description> */ /* A structure used during glyph loading to store its outline. */ /* */ /* <Fields> */ /* memory :: The current memory object. */ /* */ /* face :: The current face object. */ /* */ /* glyph :: The current glyph slot. */ /* */ /* loader :: The current glyph loader. */ /* */ /* base :: The base glyph outline. */ /* */ /* current :: The current glyph outline. */ /* */ /* pos_x :: The horizontal translation (if composite glyph). */ /* */ /* pos_y :: The vertical translation (if composite glyph). */ /* */ /* left_bearing :: The left side bearing point. */ /* */ /* advance :: The horizontal advance vector. */ /* */ /* bbox :: Unused. */ /* */ /* path_begun :: A flag which indicates that a new path has begun. */ /* */ /* load_points :: If this flag is not set, no points are loaded. */ /* */ /* no_recurse :: Set but not used. */ /* */ /* metrics_only :: A boolean indicating that we only want to compute */ /* the metrics of a given glyph, not load all of its */ /* points. */ /* */ /* hints_funcs :: Auxiliary pointer for hinting. */ /* */ /* hints_globals :: Auxiliary pointer for hinting. */ /* */ typedef struct CFF_Builder_ { FT_Memory memory; TT_Face face; CFF_GlyphSlot glyph; FT_GlyphLoader loader; FT_Outline* base; FT_Outline* current; FT_Pos pos_x; FT_Pos pos_y; FT_Vector left_bearing; FT_Vector advance; FT_BBox bbox; /* bounding box */ FT_Bool path_begun; FT_Bool load_points; FT_Bool no_recurse; FT_Bool metrics_only; void* hints_funcs; /* hinter-specific */ void* hints_globals; /* hinter-specific */ } CFF_Builder; FT_LOCAL( FT_Error ) cff_check_points( CFF_Builder* builder, FT_Int count ); FT_LOCAL( void ) cff_builder_add_point( CFF_Builder* builder, FT_Pos x, FT_Pos y, FT_Byte flag ); FT_LOCAL( FT_Error ) cff_builder_add_point1( CFF_Builder* builder, FT_Pos x, FT_Pos y ); FT_LOCAL( FT_Error ) cff_builder_start_point( CFF_Builder* builder, FT_Pos x, FT_Pos y ); FT_LOCAL( void ) cff_builder_close_contour( CFF_Builder* builder ); FT_LOCAL( FT_Int ) cff_lookup_glyph_by_stdcharcode( CFF_Font cff, FT_Int charcode ); FT_LOCAL( FT_Error ) cff_get_glyph_data( TT_Face face, FT_UInt glyph_index, FT_Byte** pointer, FT_ULong* length ); FT_LOCAL( void ) cff_free_glyph_data( TT_Face face, FT_Byte** pointer, FT_ULong length ); /* execution context charstring zone */ typedef struct CFF_Decoder_Zone_ { FT_Byte* base; FT_Byte* limit; FT_Byte* cursor; } CFF_Decoder_Zone; typedef struct CFF_Decoder_ { CFF_Builder builder; CFF_Font cff; FT_Fixed stack[CFF_MAX_OPERANDS + 1]; FT_Fixed* top; CFF_Decoder_Zone zones[CFF_MAX_SUBRS_CALLS + 1]; CFF_Decoder_Zone* zone; FT_Int flex_state; FT_Int num_flex_vectors; FT_Vector flex_vectors[7]; FT_Pos glyph_width; FT_Pos nominal_width; FT_Bool read_width; FT_Bool width_only; FT_Int num_hints; FT_Fixed buildchar[CFF_MAX_TRANS_ELEMENTS]; FT_UInt num_locals; FT_UInt num_globals; FT_Int locals_bias; FT_Int globals_bias; FT_Byte** locals; FT_Byte** globals; FT_Byte** glyph_names; /* for pure CFF fonts only */ FT_UInt num_glyphs; /* number of glyphs in font */ FT_Render_Mode hint_mode; FT_Bool seac; CFF_SubFont current_subfont; /* for current glyph_index */ } CFF_Decoder; FT_LOCAL( void ) cff_decoder_init( CFF_Decoder* decoder, TT_Face face, CFF_Size size, CFF_GlyphSlot slot, FT_Bool hinting, FT_Render_Mode hint_mode ); FT_LOCAL( FT_Error ) cff_decoder_prepare( CFF_Decoder* decoder, CFF_Size size, FT_UInt glyph_index ); #if 0 /* unused until we support pure CFF fonts */ /* Compute the maximum advance width of a font through quick parsing */ FT_LOCAL( FT_Error ) cff_compute_max_advance( TT_Face face, FT_Int* max_advance ); #endif /* 0 */ #ifdef CFF_CONFIG_OPTION_OLD_ENGINE FT_LOCAL( FT_Error ) cff_decoder_parse_charstrings( CFF_Decoder* decoder, FT_Byte* charstring_base, FT_ULong charstring_len ); #endif FT_LOCAL( FT_Error ) cff_slot_load( CFF_GlyphSlot glyph, CFF_Size size, FT_UInt glyph_index, FT_Int32 load_flags ); FT_END_HEADER #endif /* __CFFGLOAD_H__ */ /* END */