projects / wxWidgets.git / blame
| Commit | Line | Data |
|---|---|---|
| cabec872 RR |
1 | /***************************************************************************/ |
| 2 | /* */ | |
| 3 | /* z1gload.h */ | |
| 4 | /* */ | |
| 5 | /* Experimental Type 1 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 Z1GLOAD_H | |
| 20 | #define Z1GLOAD_H | |
| 21 | ||
| 22 | ||
| 23 | #ifdef FT_FLAT_COMPILE | |
| 24 | ||
| 25 | #include "z1objs.h" | |
| 26 | ||
| 27 | #else | |
| 28 | ||
| 29 | #include <type1z/z1objs.h> | |
| 30 | ||
| 31 | #endif | |
| 32 | ||
| 33 | ||
| 34 | #ifdef __cplusplus | |
| 35 | extern "C" { | |
| 36 | #endif | |
| 37 | ||
| 38 | ||
| 39 | /*************************************************************************/ | |
| 40 | /* */ | |
| 41 | /* <Structure> */ | |
| 42 | /* Z1_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 | /* loader :: The current glyph loader. */ | |
| 55 | /* */ | |
| 56 | /* current :: The current glyph outline. */ | |
| 57 | /* */ | |
| 58 | /* base :: The base glyph outline. */ | |
| 59 | /* */ | |
| 60 | /* last :: The last point position. */ | |
| 61 | /* */ | |
| 62 | /* scale_x :: The horizontal scale (FUnits to sub-pixels). */ | |
| 63 | /* */ | |
| 64 | /* scale_y :: The vertical scale (FUnits to sub-pixels). */ | |
| 65 | /* */ | |
| 66 | /* pos_x :: The horizontal translation (for composite glyphs). */ | |
| 67 | /* */ | |
| 68 | /* pos_y :: The vertical translation (for composite glyphs). */ | |
| 69 | /* */ | |
| 70 | /* left_bearing :: The left side bearing point. */ | |
| 71 | /* */ | |
| 72 | /* advance :: The horizontal advance vector. */ | |
| 73 | /* */ | |
| 74 | /* no_recurse :: */ | |
| 75 | /* */ | |
| 76 | /* bbox :: The glyph's bounding box. */ | |
| 77 | /* */ | |
| 78 | /* path_begun :: A flag which indicates that a new path has begun. */ | |
| 79 | /* */ | |
| 80 | /* load_points :: A flag which indicates, if not set, that no points */ | |
| 81 | /* are loaded. */ | |
| 82 | /* */ | |
| 83 | /* error :: The current error code. */ | |
| 84 | /* */ | |
| 85 | /* metrics_only :: A flag whether to compute metrics only. */ | |
| 86 | /* */ | |
| 87 | typedef struct Z1_Builder_ | |
| 88 | { | |
| 89 | FT_Memory memory; | |
| 90 | T1_Face face; | |
| 91 | Z1_GlyphSlot glyph; | |
| 92 | FT_GlyphLoader* loader; | |
| 93 | ||
| 94 | FT_Outline* current; /* the current glyph outline */ | |
| 95 | FT_Outline* base; /* the composite glyph outline */ | |
| 96 | ||
| 97 | FT_Vector last; | |
| 98 | ||
| 99 | FT_Fixed scale_x; | |
| 100 | FT_Fixed scale_y; | |
| 101 | ||
| 102 | FT_Pos pos_x; | |
| 103 | FT_Pos pos_y; | |
| 104 | ||
| 105 | FT_Vector left_bearing; | |
| 106 | FT_Vector advance; | |
| 107 | ||
| 108 | FT_BBox bbox; /* bounding box */ | |
| 109 | FT_Bool path_begun; | |
| 110 | FT_Bool load_points; | |
| 111 | FT_Bool no_recurse; | |
| 112 | ||
| 113 | FT_Error error; /* only used for memory errors */ | |
| 114 | FT_Bool metrics_only; | |
| 115 | ||
| 116 | } Z1_Builder; | |
| 117 | ||
| 118 | ||
| 119 | /* execution context charstring zone */ | |
| 120 | typedef struct Z1_Decoder_Zone_ | |
| 121 | { | |
| 122 | FT_Byte* base; | |
| 123 | FT_Byte* limit; | |
| 124 | FT_Byte* cursor; | |
| 125 | ||
| 126 | } Z1_Decoder_Zone; | |
| 127 | ||
| 128 | ||
| 129 | typedef struct Z1_Decoder_ | |
| 130 | { | |
| 131 | Z1_Builder builder; | |
| 132 | ||
| 133 | FT_Int stack[T1_MAX_CHARSTRINGS_OPERANDS]; | |
| 134 | FT_Int* top; | |
| 135 | ||
| 136 | Z1_Decoder_Zone zones[T1_MAX_SUBRS_CALLS + 1]; | |
| 137 | Z1_Decoder_Zone* zone; | |
| 138 | ||
| 139 | FT_Int flex_state; | |
| 140 | FT_Int num_flex_vectors; | |
| 141 | FT_Vector flex_vectors[7]; | |
| 142 | ||
| 143 | T1_Blend* blend; /* for multiple masters */ | |
| 144 | ||
| 145 | } Z1_Decoder; | |
| 146 | ||
| 147 | ||
| 148 | LOCAL_DEF | |
| 149 | void Z1_Init_Builder( Z1_Builder* builder, | |
| 150 | T1_Face face, | |
| 151 | Z1_Size size, | |
| 152 | Z1_GlyphSlot glyph ); | |
| 153 | ||
| 154 | LOCAL_DEF | |
| 155 | void Z1_Done_Builder( Z1_Builder* builder ); | |
| 156 | ||
| 157 | LOCAL_DEF | |
| 158 | void Z1_Init_Decoder( Z1_Decoder* decoder ); | |
| 159 | ||
| 160 | LOCAL_DEF | |
| 161 | FT_Error Z1_Compute_Max_Advance( T1_Face face, | |
| 162 | FT_Int* max_advance ); | |
| 163 | ||
| 164 | LOCAL_DEF | |
| 165 | FT_Error Z1_Parse_CharStrings( Z1_Decoder* decoder, | |
| 166 | FT_Byte* charstring_base, | |
| 167 | FT_Int charstring_len, | |
| 168 | FT_Int num_subrs, | |
| 169 | FT_Byte** subrs_base, | |
| 170 | FT_Int* subrs_len ); | |
| 171 | ||
| 172 | LOCAL_DEF | |
| 173 | FT_Error Z1_Load_Glyph( Z1_GlyphSlot glyph, | |
| 174 | Z1_Size size, | |
| 175 | FT_Int glyph_index, | |
| 176 | FT_Int load_flags ); | |
| 177 | ||
| 178 | ||
| 179 | #ifdef __cplusplus | |
| 180 | } | |
| 181 | #endif | |
| 182 | ||
| 183 | ||
| 184 | #endif /* Z1GLOAD_H */ | |
| 185 | ||
| 186 | ||
| 187 | /* END */ |