| | 1 | /***************************************************************************/ |
| | 2 | /* */ |
| | 3 | /* cidgload.h */ |
| | 4 | /* */ |
| | 5 | /* OpenType Glyph Loader (specification). */ |
| | 6 | /* */ |
| | 7 | /* Copyright 1996-2000 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 CIDGLOAD_H |
| | 20 | #define CIDGLOAD_H |
| | 21 | |
| | 22 | |
| | 23 | #ifdef FT_FLAT_COMPILE |
| | 24 | |
| | 25 | #include "cidobjs.h" |
| | 26 | |
| | 27 | #else |
| | 28 | |
| | 29 | #include <cid/cidobjs.h> |
| | 30 | |
| | 31 | #endif |
| | 32 | |
| | 33 | |
| | 34 | #ifdef __cplusplus |
| | 35 | extern "C" { |
| | 36 | #endif |
| | 37 | |
| | 38 | |
| | 39 | /*************************************************************************/ |
| | 40 | /* */ |
| | 41 | /* <Structure> */ |
| | 42 | /* CID_Builder */ |
| | 43 | /* */ |
| | 44 | /* <Description> */ |
| | 45 | /* A structure used during glyph loading to store its outline. */ |
| | 46 | /* */ |
| | 47 | /* <Fields> */ |
| | 48 | /* memory :: The current memory object. */ |
| | 49 | /* */ |
| | 50 | /* face :: The current face object. */ |
| | 51 | /* */ |
| | 52 | /* glyph :: The current glyph slot. */ |
| | 53 | /* */ |
| | 54 | /* current :: The current glyph outline. */ |
| | 55 | /* */ |
| | 56 | /* base :: The base glyph outline. */ |
| | 57 | /* */ |
| | 58 | /* max_points :: maximum points in builder outline */ |
| | 59 | /* */ |
| | 60 | /* max_contours :: Maximal number of contours in builder outline. */ |
| | 61 | /* */ |
| | 62 | /* last :: The last point position. */ |
| | 63 | /* */ |
| | 64 | /* scale_x :: The horizontal scale (FUnits to sub-pixels). */ |
| | 65 | /* */ |
| | 66 | /* scale_y :: The vertical scale (FUnits to sub-pixels). */ |
| | 67 | /* */ |
| | 68 | /* pos_x :: The horizontal translation (if composite glyph). */ |
| | 69 | /* */ |
| | 70 | /* pos_y :: The vertical translation (if composite glyph). */ |
| | 71 | /* */ |
| | 72 | /* left_bearing :: The left side bearing point. */ |
| | 73 | /* */ |
| | 74 | /* advance :: The horizontal advance vector. */ |
| | 75 | /* */ |
| | 76 | /* bbox :: Unused. */ |
| | 77 | /* */ |
| | 78 | /* path_begun :: A flag which indicates that a new path has begun. */ |
| | 79 | /* */ |
| | 80 | /* load_points :: If this flag is not set, no points are loaded. */ |
| | 81 | /* */ |
| | 82 | /* no_recurse :: Set but not used. */ |
| | 83 | /* */ |
| | 84 | /* error :: An error code that is only used to report memory */ |
| | 85 | /* allocation problems. */ |
| | 86 | /* */ |
| | 87 | /* metrics_only :: A boolean indicating that we only want to compute */ |
| | 88 | /* the metrics of a given glyph, not load all of its */ |
| | 89 | /* points. */ |
| | 90 | /* */ |
| | 91 | typedef struct CID_Builder_ |
| | 92 | { |
| | 93 | FT_Memory memory; |
| | 94 | CID_Face face; |
| | 95 | CID_GlyphSlot glyph; |
| | 96 | FT_GlyphLoader* loader; |
| | 97 | FT_Outline* base; |
| | 98 | FT_Outline* current; |
| | 99 | |
| | 100 | FT_Vector last; |
| | 101 | |
| | 102 | FT_Fixed scale_x; |
| | 103 | FT_Fixed scale_y; |
| | 104 | |
| | 105 | FT_Pos pos_x; |
| | 106 | FT_Pos pos_y; |
| | 107 | |
| | 108 | FT_Vector left_bearing; |
| | 109 | FT_Vector advance; |
| | 110 | |
| | 111 | FT_BBox bbox; /* bounding box */ |
| | 112 | FT_Bool path_begun; |
| | 113 | FT_Bool load_points; |
| | 114 | FT_Bool no_recurse; |
| | 115 | |
| | 116 | FT_Error error; /* only used for memory errors */ |
| | 117 | FT_Bool metrics_only; |
| | 118 | |
| | 119 | } CID_Builder; |
| | 120 | |
| | 121 | |
| | 122 | /* execution context charstring zone */ |
| | 123 | |
| | 124 | typedef struct CID_Decoder_Zone_ |
| | 125 | { |
| | 126 | FT_Byte* base; |
| | 127 | FT_Byte* limit; |
| | 128 | FT_Byte* cursor; |
| | 129 | |
| | 130 | } CID_Decoder_Zone; |
| | 131 | |
| | 132 | |
| | 133 | typedef struct CID_Decoder_ |
| | 134 | { |
| | 135 | CID_Builder builder; |
| | 136 | |
| | 137 | FT_Int stack[T1_MAX_CHARSTRINGS_OPERANDS]; |
| | 138 | FT_Int* top; |
| | 139 | |
| | 140 | CID_Decoder_Zone zones[T1_MAX_SUBRS_CALLS + 1]; |
| | 141 | CID_Decoder_Zone* zone; |
| | 142 | |
| | 143 | FT_Matrix font_matrix; |
| | 144 | CID_Subrs* subrs; |
| | 145 | FT_UInt lenIV; |
| | 146 | |
| | 147 | FT_Int flex_state; |
| | 148 | FT_Int num_flex_vectors; |
| | 149 | FT_Vector flex_vectors[7]; |
| | 150 | |
| | 151 | } CID_Decoder; |
| | 152 | |
| | 153 | |
| | 154 | LOCAL_DEF |
| | 155 | void CID_Init_Builder( CID_Builder* builder, |
| | 156 | CID_Face face, |
| | 157 | CID_Size size, |
| | 158 | CID_GlyphSlot glyph ); |
| | 159 | |
| | 160 | LOCAL_DEF |
| | 161 | void CID_Done_Builder( CID_Builder* builder ); |
| | 162 | |
| | 163 | |
| | 164 | LOCAL_DEF |
| | 165 | void CID_Init_Decoder( CID_Decoder* decoder ); |
| | 166 | |
| | 167 | |
| | 168 | #if 0 |
| | 169 | |
| | 170 | /* Compute the maximum advance width of a font through quick parsing */ |
| | 171 | LOCAL_DEF |
| | 172 | FT_Error CID_Compute_Max_Advance( CID_Face face, |
| | 173 | FT_Int* max_advance ); |
| | 174 | |
| | 175 | #endif |
| | 176 | |
| | 177 | /* This function is exported, because it is used by the T1Dump utility */ |
| | 178 | LOCAL_DEF |
| | 179 | FT_Error CID_Parse_CharStrings( CID_Decoder* decoder, |
| | 180 | FT_Byte* charstring_base, |
| | 181 | FT_Int charstring_len ); |
| | 182 | |
| | 183 | LOCAL_DEF |
| | 184 | FT_Error CID_Load_Glyph( CID_GlyphSlot glyph, |
| | 185 | CID_Size size, |
| | 186 | FT_Int glyph_index, |
| | 187 | FT_Int load_flags ); |
| | 188 | |
| | 189 | |
| | 190 | #ifdef __cplusplus |
| | 191 | } |
| | 192 | #endif |
| | 193 | |
| | 194 | |
| | 195 | #endif /* CIDGLOAD_H */ |
| | 196 | |
| | 197 | |
| | 198 | /* END */ |
projects / wxWidgets.git / blame_incremental