[692] | 1 | /***************************************************************************/
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| 2 | /* */
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| 3 | /* t1tables.h */
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| 4 | /* */
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| 5 | /* Basic Type 1/Type 2 tables definitions and interface (specification */
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| 6 | /* only). */
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| 7 | /* */
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| 8 | /* Copyright 1996-2001, 2002, 2003, 2004 by */
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| 9 | /* David Turner, Robert Wilhelm, and Werner Lemberg. */
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| 10 | /* */
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| 11 | /* This file is part of the FreeType project, and may only be used, */
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| 12 | /* modified, and distributed under the terms of the FreeType project */
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| 13 | /* license, LICENSE.TXT. By continuing to use, modify, or distribute */
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| 14 | /* this file you indicate that you have read the license and */
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| 15 | /* understand and accept it fully. */
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| 16 | /* */
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| 17 | /***************************************************************************/
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| 18 |
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| 19 |
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| 20 | #ifndef __T1TABLES_H__
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| 21 | #define __T1TABLES_H__
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| 22 |
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| 23 |
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| 24 | #include <ft2build.h>
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| 25 | #include FT_FREETYPE_H
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| 26 |
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| 27 | #ifdef FREETYPE_H
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| 28 | #error "freetype.h of FreeType 1 has been loaded!"
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| 29 | #error "Please fix the directory search order for header files"
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| 30 | #error "so that freetype.h of FreeType 2 is found first."
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| 31 | #endif
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| 32 |
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| 33 |
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| 34 | FT_BEGIN_HEADER
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| 35 |
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| 36 |
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| 37 | /*************************************************************************/
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| 38 | /* */
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| 39 | /* <Section> */
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| 40 | /* type1_tables */
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| 41 | /* */
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| 42 | /* <Title> */
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| 43 | /* Type 1 Tables */
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| 44 | /* */
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| 45 | /* <Abstract> */
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| 46 | /* Type 1 (PostScript) specific font tables. */
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| 47 | /* */
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| 48 | /* <Description> */
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| 49 | /* This section contains the definition of Type 1-specific tables, */
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| 50 | /* including structures related to other PostScript font formats. */
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| 51 | /* */
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| 52 | /*************************************************************************/
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| 53 |
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| 54 |
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| 55 | /* Note that we separate font data in PS_FontInfoRec and PS_PrivateRec */
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| 56 | /* structures in order to support Multiple Master fonts. */
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| 57 |
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| 58 |
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| 59 | /*************************************************************************/
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| 60 | /* */
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| 61 | /* <Struct> */
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| 62 | /* PS_FontInfoRec */
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| 63 | /* */
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| 64 | /* <Description> */
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| 65 | /* A structure used to model a Type1/Type2 FontInfo dictionary. Note */
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| 66 | /* that for Multiple Master fonts, each instance has its own */
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| 67 | /* FontInfo. */
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| 68 | /* */
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| 69 | typedef struct PS_FontInfoRec
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| 70 | {
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| 71 | FT_String* version;
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| 72 | FT_String* notice;
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| 73 | FT_String* full_name;
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| 74 | FT_String* family_name;
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| 75 | FT_String* weight;
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| 76 | FT_Long italic_angle;
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| 77 | FT_Bool is_fixed_pitch;
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| 78 | FT_Short underline_position;
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| 79 | FT_UShort underline_thickness;
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| 80 |
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| 81 | } PS_FontInfoRec, *PS_FontInfo;
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| 82 |
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| 83 |
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| 84 | /*************************************************************************/
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| 85 | /* */
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| 86 | /* <Struct> */
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| 87 | /* T1_FontInfo */
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| 88 | /* */
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| 89 | /* <Description> */
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| 90 | /* This type is equivalent to @PS_FontInfoRec. It is deprecated but */
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| 91 | /* kept to maintain source compatibility between various versions of */
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| 92 | /* FreeType. */
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| 93 | /* */
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| 94 | typedef PS_FontInfoRec T1_FontInfo;
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| 95 |
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| 96 |
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| 97 | /*************************************************************************/
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| 98 | /* */
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| 99 | /* <Struct> */
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| 100 | /* PS_PrivateRec */
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| 101 | /* */
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| 102 | /* <Description> */
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| 103 | /* A structure used to model a Type1/Type2 private dictionary. Note */
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| 104 | /* that for Multiple Master fonts, each instance has its own Private */
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| 105 | /* dictionary. */
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| 106 | /* */
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| 107 | typedef struct PS_PrivateRec_
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| 108 | {
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| 109 | FT_Int unique_id;
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| 110 | FT_Int lenIV;
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| 111 |
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| 112 | FT_Byte num_blue_values;
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| 113 | FT_Byte num_other_blues;
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| 114 | FT_Byte num_family_blues;
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| 115 | FT_Byte num_family_other_blues;
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| 116 |
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| 117 | FT_Short blue_values[14];
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| 118 | FT_Short other_blues[10];
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| 119 |
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| 120 | FT_Short family_blues [14];
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| 121 | FT_Short family_other_blues[10];
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| 122 |
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| 123 | FT_Fixed blue_scale;
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| 124 | FT_Int blue_shift;
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| 125 | FT_Int blue_fuzz;
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| 126 |
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| 127 | FT_UShort standard_width[1];
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| 128 | FT_UShort standard_height[1];
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| 129 |
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| 130 | FT_Byte num_snap_widths;
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| 131 | FT_Byte num_snap_heights;
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| 132 | FT_Bool force_bold;
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| 133 | FT_Bool round_stem_up;
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| 134 |
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| 135 | FT_Short snap_widths [13]; /* including std width */
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| 136 | FT_Short snap_heights[13]; /* including std height */
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| 137 |
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| 138 | FT_Fixed expansion_factor;
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| 139 |
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| 140 | FT_Long language_group;
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| 141 | FT_Long password;
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| 142 |
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| 143 | FT_Short min_feature[2];
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| 144 |
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| 145 | } PS_PrivateRec, *PS_Private;
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| 146 |
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| 147 |
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| 148 | /*************************************************************************/
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| 149 | /* */
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| 150 | /* <Struct> */
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| 151 | /* T1_Private */
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| 152 | /* */
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| 153 | /* <Description> */
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| 154 | /* This type is equivalent to @PS_PrivateRec. It is deprecated but */
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| 155 | /* kept to maintain source compatibility between various versions of */
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| 156 | /* FreeType. */
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| 157 | /* */
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| 158 | typedef PS_PrivateRec T1_Private;
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| 159 |
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| 160 |
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| 161 | /*************************************************************************/
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| 162 | /* */
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| 163 | /* <Enum> */
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| 164 | /* T1_Blend_Flags */
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| 165 | /* */
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| 166 | /* <Description> */
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| 167 | /* A set of flags used to indicate which fields are present in a */
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| 168 | /* given blend dictionary (font info or private). Used to support */
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| 169 | /* Multiple Masters fonts. */
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| 170 | /* */
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| 171 | typedef enum
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| 172 | {
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| 173 | /*# required fields in a FontInfo blend dictionary */
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| 174 | T1_BLEND_UNDERLINE_POSITION = 0,
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| 175 | T1_BLEND_UNDERLINE_THICKNESS,
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| 176 | T1_BLEND_ITALIC_ANGLE,
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| 177 |
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| 178 | /*# required fields in a Private blend dictionary */
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| 179 | T1_BLEND_BLUE_VALUES,
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| 180 | T1_BLEND_OTHER_BLUES,
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| 181 | T1_BLEND_STANDARD_WIDTH,
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| 182 | T1_BLEND_STANDARD_HEIGHT,
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| 183 | T1_BLEND_STEM_SNAP_WIDTHS,
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| 184 | T1_BLEND_STEM_SNAP_HEIGHTS,
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| 185 | T1_BLEND_BLUE_SCALE,
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| 186 | T1_BLEND_BLUE_SHIFT,
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| 187 | T1_BLEND_FAMILY_BLUES,
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| 188 | T1_BLEND_FAMILY_OTHER_BLUES,
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| 189 | T1_BLEND_FORCE_BOLD,
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| 190 |
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| 191 | /*# never remove */
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| 192 | T1_BLEND_MAX
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| 193 |
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| 194 | } T1_Blend_Flags;
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| 195 |
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| 196 |
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| 197 | /*# backwards compatible definitions */
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| 198 | #define t1_blend_underline_position T1_BLEND_UNDERLINE_POSITION
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| 199 | #define t1_blend_underline_thickness T1_BLEND_UNDERLINE_THICKNESS
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| 200 | #define t1_blend_italic_angle T1_BLEND_ITALIC_ANGLE
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| 201 | #define t1_blend_blue_values T1_BLEND_BLUE_VALUES
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| 202 | #define t1_blend_other_blues T1_BLEND_OTHER_BLUES
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| 203 | #define t1_blend_standard_widths T1_BLEND_STANDARD_WIDTH
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| 204 | #define t1_blend_standard_height T1_BLEND_STANDARD_HEIGHT
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| 205 | #define t1_blend_stem_snap_widths T1_BLEND_STEM_SNAP_WIDTHS
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| 206 | #define t1_blend_stem_snap_heights T1_BLEND_STEM_SNAP_HEIGHTS
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| 207 | #define t1_blend_blue_scale T1_BLEND_BLUE_SCALE
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| 208 | #define t1_blend_blue_shift T1_BLEND_BLUE_SHIFT
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| 209 | #define t1_blend_family_blues T1_BLEND_FAMILY_BLUES
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| 210 | #define t1_blend_family_other_blues T1_BLEND_FAMILY_OTHER_BLUES
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| 211 | #define t1_blend_force_bold T1_BLEND_FORCE_BOLD
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| 212 | #define t1_blend_max T1_BLEND_MAX
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| 213 |
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| 214 |
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| 215 | /* maximum number of Multiple Masters designs, as defined in the spec */
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| 216 | #define T1_MAX_MM_DESIGNS 16
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| 217 |
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| 218 | /* maximum number of Multiple Masters axes, as defined in the spec */
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| 219 | #define T1_MAX_MM_AXIS 4
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| 220 |
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| 221 | /* maximum number of elements in a design map */
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| 222 | #define T1_MAX_MM_MAP_POINTS 20
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| 223 |
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| 224 |
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| 225 | /* this structure is used to store the BlendDesignMap entry for an axis */
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| 226 | typedef struct PS_DesignMap_
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| 227 | {
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| 228 | FT_Byte num_points;
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| 229 | FT_Long* design_points;
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| 230 | FT_Fixed* blend_points;
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| 231 |
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| 232 | } PS_DesignMapRec, *PS_DesignMap;
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| 233 |
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| 234 | /* backwards-compatible definition */
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| 235 | typedef PS_DesignMapRec T1_DesignMap;
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| 236 |
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| 237 |
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| 238 | typedef struct PS_BlendRec_
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| 239 | {
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| 240 | FT_UInt num_designs;
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| 241 | FT_UInt num_axis;
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| 242 |
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| 243 | FT_String* axis_names[T1_MAX_MM_AXIS];
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| 244 | FT_Fixed* design_pos[T1_MAX_MM_DESIGNS];
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| 245 | PS_DesignMapRec design_map[T1_MAX_MM_AXIS];
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| 246 |
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| 247 | FT_Fixed* weight_vector;
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| 248 | FT_Fixed* default_weight_vector;
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| 249 |
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| 250 | PS_FontInfo font_infos[T1_MAX_MM_DESIGNS + 1];
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| 251 | PS_Private privates [T1_MAX_MM_DESIGNS + 1];
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| 252 |
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| 253 | FT_ULong blend_bitflags;
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| 254 |
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| 255 | FT_BBox* bboxes [T1_MAX_MM_DESIGNS + 1];
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| 256 |
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| 257 | } PS_BlendRec, *PS_Blend;
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| 258 |
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| 259 |
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| 260 | /* backwards-compatible definition */
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| 261 | typedef PS_BlendRec T1_Blend;
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| 262 |
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| 263 |
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| 264 | typedef struct CID_FaceDictRec_
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| 265 | {
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| 266 | PS_PrivateRec private_dict;
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| 267 |
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| 268 | FT_UInt len_buildchar;
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| 269 | FT_Fixed forcebold_threshold;
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| 270 | FT_Pos stroke_width;
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| 271 | FT_Fixed expansion_factor;
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| 272 |
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| 273 | FT_Byte paint_type;
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| 274 | FT_Byte font_type;
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| 275 | FT_Matrix font_matrix;
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| 276 | FT_Vector font_offset;
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| 277 |
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| 278 | FT_UInt num_subrs;
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| 279 | FT_ULong subrmap_offset;
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| 280 | FT_Int sd_bytes;
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| 281 |
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| 282 | } CID_FaceDictRec, *CID_FaceDict;
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| 283 |
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| 284 |
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| 285 | /* backwards-compatible definition */
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| 286 | typedef CID_FaceDictRec CID_FontDict;
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| 287 |
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| 288 |
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| 289 | typedef struct CID_FaceInfoRec_
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| 290 | {
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| 291 | FT_String* cid_font_name;
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| 292 | FT_Fixed cid_version;
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| 293 | FT_Int cid_font_type;
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| 294 |
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| 295 | FT_String* registry;
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| 296 | FT_String* ordering;
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| 297 | FT_Int supplement;
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| 298 |
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| 299 | PS_FontInfoRec font_info;
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| 300 | FT_BBox font_bbox;
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| 301 | FT_ULong uid_base;
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| 302 |
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| 303 | FT_Int num_xuid;
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| 304 | FT_ULong xuid[16];
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| 305 |
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| 306 | FT_ULong cidmap_offset;
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| 307 | FT_Int fd_bytes;
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| 308 | FT_Int gd_bytes;
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| 309 | FT_ULong cid_count;
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| 310 |
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| 311 | FT_Int num_dicts;
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| 312 | CID_FaceDict font_dicts;
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| 313 |
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| 314 | FT_ULong data_offset;
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| 315 |
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| 316 | } CID_FaceInfoRec, *CID_FaceInfo;
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| 317 |
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| 318 |
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| 319 | /*************************************************************************/
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| 320 | /* */
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| 321 | /* <Struct> */
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| 322 | /* CID_Info */
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| 323 | /* */
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| 324 | /* <Description> */
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| 325 | /* This type is equivalent to CID_FaceInfoRec. It is deprecated but */
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| 326 | /* kept to maintain source compatibility between various versions of */
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| 327 | /* FreeType. */
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| 328 | /* */
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| 329 | typedef CID_FaceInfoRec CID_Info;
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| 330 |
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| 331 | /* */
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| 332 |
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| 333 |
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| 334 | /************************************************************************
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| 335 | *
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| 336 | * @function:
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| 337 | * FT_Has_PS_Glyph_Names
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| 338 | *
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| 339 | * @description:
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| 340 | * Return true if a given face provides reliable Postscript glyph
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| 341 | * names. This is similar to using the @FT_HAS_GLYPH_NAMES macro,
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| 342 | * except that certain fonts (mostly TrueType) contain incorrect
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| 343 | * glyph name tables.
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| 344 | *
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| 345 | * When this function returns true, the caller is sure that the glyph
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| 346 | * names returned by @FT_Get_Glyph_Name are reliable.
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| 347 | *
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| 348 | * @input:
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| 349 | * face ::
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| 350 | * face handle
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| 351 | *
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| 352 | * @return:
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| 353 | * Boolean. True if glyph names are reliable.
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| 354 | */
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| 355 | FT_EXPORT( FT_Int )
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| 356 | FT_Has_PS_Glyph_Names( FT_Face face );
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| 357 |
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| 358 |
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| 359 | /************************************************************************
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| 360 | *
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| 361 | * @function:
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| 362 | * FT_Get_PS_Font_Info
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| 363 | *
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| 364 | * @description:
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| 365 | * Retrieve the @PS_FontInfoRec structure corresponding to a given
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| 366 | * Postscript font.
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| 367 | *
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| 368 | * @input:
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| 369 | * face ::
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| 370 | * Postscript face handle.
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| 371 | *
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| 372 | * @output:
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| 373 | * afont_info ::
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| 374 | * Output font info structure pointer.
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| 375 | *
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| 376 | * @return:
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| 377 | * FreeType error code. 0 means success.
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| 378 | *
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| 379 | * @note:
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| 380 | * The string pointers within the font info structure are owned by
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| 381 | * the face and don't need to be freed by the caller.
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| 382 | *
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| 383 | * If the font's format is not Postscript-based, this function will
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| 384 | * return the FT_Err_Invalid_Argument error code.
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| 385 | */
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| 386 | FT_EXPORT( FT_Error )
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| 387 | FT_Get_PS_Font_Info( FT_Face face,
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| 388 | PS_FontInfoRec *afont_info );
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| 389 |
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| 390 |
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| 391 | /************************************************************************
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| 392 | *
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| 393 | * @function:
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| 394 | * FT_Get_PS_Font_Private
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| 395 | *
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| 396 | * @description:
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| 397 | * Retrieve the @PS_PrivateRec structure corresponding to a given
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| 398 | * Postscript font.
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| 399 | *
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| 400 | * @input:
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| 401 | * face ::
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| 402 | * Postscript face handle.
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| 403 | *
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| 404 | * @output:
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| 405 | * afont_private ::
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| 406 | * Output private dictionary structure pointer.
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| 407 | *
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| 408 | * @return:
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| 409 | * FreeType error code. 0 means success.
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| 410 | *
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| 411 | * @note:
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| 412 | * The string pointers within the font info structure are owned by
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| 413 | * the face and don't need to be freed by the caller.
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| 414 | *
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| 415 | * If the font's format is not Postscript-based, this function will
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| 416 | * return the FT_Err_Invalid_Argument error code.
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| 417 | */
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| 418 | FT_EXPORT( FT_Error )
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| 419 | FT_Get_PS_Font_Private( FT_Face face,
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| 420 | PS_PrivateRec *afont_private );
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| 421 |
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| 422 | /* */
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| 423 |
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| 424 |
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| 425 |
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| 426 | FT_END_HEADER
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| 427 |
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| 428 | #endif /* __T1TABLES_H__ */
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| 429 |
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| 430 |
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| 431 | /* END */
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