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| 1 /***************************************************************************/ | |
| 2 /* */ | |
| 3 /* cffgload.h */ | |
| 4 /* */ | |
| 5 /* OpenType Glyph Loader (specification). */ | |
| 6 /* */ | |
| 7 /* Copyright 1996-2004, 2006-2009, 2013 by */ | |
| 8 /* David Turner, Robert Wilhelm, and Werner Lemberg. */ | |
| 9 /* */ | |
| 10 /* This file is part of the FreeType project, and may only be used, */ | |
| 11 /* modified, and distributed under the terms of the FreeType project */ | |
| 12 /* license, LICENSE.TXT. By continuing to use, modify, or distribute */ | |
| 13 /* this file you indicate that you have read the license and */ | |
| 14 /* understand and accept it fully. */ | |
| 15 /* */ | |
| 16 /***************************************************************************/ | |
| 17 | |
| 18 | |
| 19 #ifndef __CFFGLOAD_H__ | |
| 20 #define __CFFGLOAD_H__ | |
| 21 | |
| 22 | |
| 23 #include "../../include/ft2build.h" | |
| 24 #include "../../include/freetype/freetype.h" | |
| 25 #include "cffobjs.h" | |
| 26 | |
| 27 | |
| 28 FT_BEGIN_HEADER | |
| 29 | |
| 30 | |
| 31 #define CFF_MAX_OPERANDS 48 | |
| 32 #define CFF_MAX_SUBRS_CALLS 32 | |
| 33 #define CFF_MAX_TRANS_ELEMENTS 32 | |
| 34 | |
| 35 | |
| 36 /*************************************************************************/ | |
| 37 /* */ | |
| 38 /* <Structure> */ | |
| 39 /* CFF_Builder */ | |
| 40 /* */ | |
| 41 /* <Description> */ | |
| 42 /* A structure used during glyph loading to store its outline. */ | |
| 43 /* */ | |
| 44 /* <Fields> */ | |
| 45 /* memory :: The current memory object. */ | |
| 46 /* */ | |
| 47 /* face :: The current face object. */ | |
| 48 /* */ | |
| 49 /* glyph :: The current glyph slot. */ | |
| 50 /* */ | |
| 51 /* loader :: The current glyph loader. */ | |
| 52 /* */ | |
| 53 /* base :: The base glyph outline. */ | |
| 54 /* */ | |
| 55 /* current :: The current glyph outline. */ | |
| 56 /* */ | |
| 57 /* pos_x :: The horizontal translation (if composite glyph). */ | |
| 58 /* */ | |
| 59 /* pos_y :: The vertical translation (if composite glyph). */ | |
| 60 /* */ | |
| 61 /* left_bearing :: The left side bearing point. */ | |
| 62 /* */ | |
| 63 /* advance :: The horizontal advance vector. */ | |
| 64 /* */ | |
| 65 /* bbox :: Unused. */ | |
| 66 /* */ | |
| 67 /* path_begun :: A flag which indicates that a new path has begun. */ | |
| 68 /* */ | |
| 69 /* load_points :: If this flag is not set, no points are loaded. */ | |
| 70 /* */ | |
| 71 /* no_recurse :: Set but not used. */ | |
| 72 /* */ | |
| 73 /* metrics_only :: A boolean indicating that we only want to compute */ | |
| 74 /* the metrics of a given glyph, not load all of its */ | |
| 75 /* points. */ | |
| 76 /* */ | |
| 77 /* hints_funcs :: Auxiliary pointer for hinting. */ | |
| 78 /* */ | |
| 79 /* hints_globals :: Auxiliary pointer for hinting. */ | |
| 80 /* */ | |
| 81 typedef struct CFF_Builder_ | |
| 82 { | |
| 83 FT_Memory memory; | |
| 84 TT_Face face; | |
| 85 CFF_GlyphSlot glyph; | |
| 86 FT_GlyphLoader loader; | |
| 87 FT_Outline* base; | |
| 88 FT_Outline* current; | |
| 89 | |
| 90 FT_Pos pos_x; | |
| 91 FT_Pos pos_y; | |
| 92 | |
| 93 FT_Vector left_bearing; | |
| 94 FT_Vector advance; | |
| 95 | |
| 96 FT_BBox bbox; /* bounding box */ | |
| 97 FT_Bool path_begun; | |
| 98 FT_Bool load_points; | |
| 99 FT_Bool no_recurse; | |
| 100 | |
| 101 FT_Bool metrics_only; | |
| 102 | |
| 103 void* hints_funcs; /* hinter-specific */ | |
| 104 void* hints_globals; /* hinter-specific */ | |
| 105 | |
| 106 } CFF_Builder; | |
| 107 | |
| 108 | |
| 109 FT_LOCAL( FT_Error ) | |
| 110 cff_check_points( CFF_Builder* builder, | |
| 111 FT_Int count ); | |
| 112 | |
| 113 FT_LOCAL( void ) | |
| 114 cff_builder_add_point( CFF_Builder* builder, | |
| 115 FT_Pos x, | |
| 116 FT_Pos y, | |
| 117 FT_Byte flag ); | |
| 118 FT_LOCAL( FT_Error ) | |
| 119 cff_builder_add_point1( CFF_Builder* builder, | |
| 120 FT_Pos x, | |
| 121 FT_Pos y ); | |
| 122 FT_LOCAL( FT_Error ) | |
| 123 cff_builder_start_point( CFF_Builder* builder, | |
| 124 FT_Pos x, | |
| 125 FT_Pos y ); | |
| 126 FT_LOCAL( void ) | |
| 127 cff_builder_close_contour( CFF_Builder* builder ); | |
| 128 | |
| 129 | |
| 130 FT_LOCAL( FT_Int ) | |
| 131 cff_lookup_glyph_by_stdcharcode( CFF_Font cff, | |
| 132 FT_Int charcode ); | |
| 133 FT_LOCAL( FT_Error ) | |
| 134 cff_get_glyph_data( TT_Face face, | |
| 135 FT_UInt glyph_index, | |
| 136 FT_Byte** pointer, | |
| 137 FT_ULong* length ); | |
| 138 FT_LOCAL( void ) | |
| 139 cff_free_glyph_data( TT_Face face, | |
| 140 FT_Byte** pointer, | |
| 141 FT_ULong length ); | |
| 142 | |
| 143 | |
| 144 /* execution context charstring zone */ | |
| 145 | |
| 146 typedef struct CFF_Decoder_Zone_ | |
| 147 { | |
| 148 FT_Byte* base; | |
| 149 FT_Byte* limit; | |
| 150 FT_Byte* cursor; | |
| 151 | |
| 152 } CFF_Decoder_Zone; | |
| 153 | |
| 154 | |
| 155 typedef struct CFF_Decoder_ | |
| 156 { | |
| 157 CFF_Builder builder; | |
| 158 CFF_Font cff; | |
| 159 | |
| 160 FT_Fixed stack[CFF_MAX_OPERANDS + 1]; | |
| 161 FT_Fixed* top; | |
| 162 | |
| 163 CFF_Decoder_Zone zones[CFF_MAX_SUBRS_CALLS + 1]; | |
| 164 CFF_Decoder_Zone* zone; | |
| 165 | |
| 166 FT_Int flex_state; | |
| 167 FT_Int num_flex_vectors; | |
| 168 FT_Vector flex_vectors[7]; | |
| 169 | |
| 170 FT_Pos glyph_width; | |
| 171 FT_Pos nominal_width; | |
| 172 | |
| 173 FT_Bool read_width; | |
| 174 FT_Bool width_only; | |
| 175 FT_Int num_hints; | |
| 176 FT_Fixed buildchar[CFF_MAX_TRANS_ELEMENTS]; | |
| 177 | |
| 178 FT_UInt num_locals; | |
| 179 FT_UInt num_globals; | |
| 180 | |
| 181 FT_Int locals_bias; | |
| 182 FT_Int globals_bias; | |
| 183 | |
| 184 FT_Byte** locals; | |
| 185 FT_Byte** globals; | |
| 186 | |
| 187 FT_Byte** glyph_names; /* for pure CFF fonts only */ | |
| 188 FT_UInt num_glyphs; /* number of glyphs in font */ | |
| 189 | |
| 190 FT_Render_Mode hint_mode; | |
| 191 | |
| 192 FT_Bool seac; | |
| 193 | |
| 194 CFF_SubFont current_subfont; /* for current glyph_index */ | |
| 195 | |
| 196 } CFF_Decoder; | |
| 197 | |
| 198 | |
| 199 FT_LOCAL( void ) | |
| 200 cff_decoder_init( CFF_Decoder* decoder, | |
| 201 TT_Face face, | |
| 202 CFF_Size size, | |
| 203 CFF_GlyphSlot slot, | |
| 204 FT_Bool hinting, | |
| 205 FT_Render_Mode hint_mode ); | |
| 206 | |
| 207 FT_LOCAL( FT_Error ) | |
| 208 cff_decoder_prepare( CFF_Decoder* decoder, | |
| 209 CFF_Size size, | |
| 210 FT_UInt glyph_index ); | |
| 211 | |
| 212 #if 0 /* unused until we support pure CFF fonts */ | |
| 213 | |
| 214 /* Compute the maximum advance width of a font through quick parsing */ | |
| 215 FT_LOCAL( FT_Error ) | |
| 216 cff_compute_max_advance( TT_Face face, | |
| 217 FT_Int* max_advance ); | |
| 218 | |
| 219 #endif /* 0 */ | |
| 220 | |
| 221 #ifdef CFF_CONFIG_OPTION_OLD_ENGINE | |
| 222 FT_LOCAL( FT_Error ) | |
| 223 cff_decoder_parse_charstrings( CFF_Decoder* decoder, | |
| 224 FT_Byte* charstring_base, | |
| 225 FT_ULong charstring_len ); | |
| 226 #endif | |
| 227 | |
| 228 FT_LOCAL( FT_Error ) | |
| 229 cff_slot_load( CFF_GlyphSlot glyph, | |
| 230 CFF_Size size, | |
| 231 FT_UInt glyph_index, | |
| 232 FT_Int32 load_flags ); | |
| 233 | |
| 234 | |
| 235 FT_END_HEADER | |
| 236 | |
| 237 #endif /* __CFFGLOAD_H__ */ | |
| 238 | |
| 239 | |
| 240 /* END */ | |
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Chromium Code Reviews
Issue 815103002:
Update freetype to 2.5.4. (Closed)
Base URL: https://pdfium.googlesource.com/pdfium.git@master