[692] | 1 | /***************************************************************************/
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| 2 | /* */
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| 3 | /* psaux.h */
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| 4 | /* */
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| 5 | /* Auxiliary functions and data structures related to PostScript fonts */
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| 6 | /* (specification). */
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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 __PSAUX_H__
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| 21 | #define __PSAUX_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_INTERNAL_OBJECTS_H
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| 26 | #include FT_INTERNAL_TYPE1_TYPES_H
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| 27 | #include FT_SERVICE_POSTSCRIPT_CMAPS_H
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| 28 |
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| 29 |
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| 30 | FT_BEGIN_HEADER
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| 31 |
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| 32 |
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| 33 | /*************************************************************************/
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| 34 | /*************************************************************************/
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| 35 | /***** *****/
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| 36 | /***** T1_TABLE *****/
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| 37 | /***** *****/
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| 38 | /*************************************************************************/
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| 39 | /*************************************************************************/
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| 40 |
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| 41 |
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| 42 | typedef struct PS_TableRec_* PS_Table;
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| 43 | typedef const struct PS_Table_FuncsRec_* PS_Table_Funcs;
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| 44 |
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| 45 |
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| 46 | /*************************************************************************/
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| 47 | /* */
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| 48 | /* <Struct> */
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| 49 | /* PS_Table_FuncsRec */
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| 50 | /* */
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| 51 | /* <Description> */
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| 52 | /* A set of function pointers to manage PS_Table objects. */
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| 53 | /* */
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| 54 | /* <Fields> */
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| 55 | /* table_init :: Used to initialize a table. */
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| 56 | /* */
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| 57 | /* table_done :: Finalizes resp. destroy a given table. */
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| 58 | /* */
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| 59 | /* table_add :: Adds a new object to a table. */
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| 60 | /* */
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| 61 | /* table_release :: Releases table data, then finalizes it. */
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| 62 | /* */
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| 63 | typedef struct PS_Table_FuncsRec_
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| 64 | {
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| 65 | FT_Error
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| 66 | (*init)( PS_Table table,
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| 67 | FT_Int count,
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| 68 | FT_Memory memory );
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| 69 |
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| 70 | void
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| 71 | (*done)( PS_Table table );
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| 72 |
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| 73 | FT_Error
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| 74 | (*add)( PS_Table table,
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| 75 | FT_Int idx,
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| 76 | void* object,
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| 77 | FT_PtrDist length );
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| 78 |
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| 79 | void
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| 80 | (*release)( PS_Table table );
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| 81 |
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| 82 | } PS_Table_FuncsRec;
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| 83 |
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| 84 |
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| 85 | /*************************************************************************/
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| 86 | /* */
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| 87 | /* <Struct> */
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| 88 | /* PS_TableRec */
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| 89 | /* */
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| 90 | /* <Description> */
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| 91 | /* A PS_Table is a simple object used to store an array of objects in */
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| 92 | /* a single memory block. */
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| 93 | /* */
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| 94 | /* <Fields> */
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| 95 | /* block :: The address in memory of the growheap's block. This */
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| 96 | /* can change between two object adds, due to */
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| 97 | /* reallocation. */
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| 98 | /* */
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| 99 | /* cursor :: The current top of the grow heap within its block. */
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| 100 | /* */
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| 101 | /* capacity :: The current size of the heap block. Increments by */
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| 102 | /* 1kByte chunks. */
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| 103 | /* */
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| 104 | /* max_elems :: The maximum number of elements in table. */
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| 105 | /* */
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| 106 | /* num_elems :: The current number of elements in table. */
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| 107 | /* */
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| 108 | /* elements :: A table of element addresses within the block. */
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| 109 | /* */
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| 110 | /* lengths :: A table of element sizes within the block. */
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| 111 | /* */
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| 112 | /* memory :: The object used for memory operations */
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| 113 | /* (alloc/realloc). */
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| 114 | /* */
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| 115 | /* funcs :: A table of method pointers for this object. */
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| 116 | /* */
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| 117 | typedef struct PS_TableRec_
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| 118 | {
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| 119 | FT_Byte* block; /* current memory block */
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| 120 | FT_Offset cursor; /* current cursor in memory block */
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| 121 | FT_Offset capacity; /* current size of memory block */
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| 122 | FT_Long init;
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| 123 |
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| 124 | FT_Int max_elems;
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| 125 | FT_Int num_elems;
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| 126 | FT_Byte** elements; /* addresses of table elements */
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| 127 | FT_PtrDist* lengths; /* lengths of table elements */
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| 128 |
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| 129 | FT_Memory memory;
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| 130 | PS_Table_FuncsRec funcs;
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| 131 |
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| 132 | } PS_TableRec;
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| 133 |
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| 134 |
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| 135 | /*************************************************************************/
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| 136 | /*************************************************************************/
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| 137 | /***** *****/
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| 138 | /***** T1 FIELDS & TOKENS *****/
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| 139 | /***** *****/
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| 140 | /*************************************************************************/
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| 141 | /*************************************************************************/
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| 142 |
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| 143 | typedef struct PS_ParserRec_* PS_Parser;
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| 144 |
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| 145 | typedef struct T1_TokenRec_* T1_Token;
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| 146 |
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| 147 | typedef struct T1_FieldRec_* T1_Field;
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| 148 |
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| 149 |
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| 150 | /* simple enumeration type used to identify token types */
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| 151 | typedef enum T1_TokenType_
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| 152 | {
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| 153 | T1_TOKEN_TYPE_NONE = 0,
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| 154 | T1_TOKEN_TYPE_ANY,
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| 155 | T1_TOKEN_TYPE_STRING,
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| 156 | T1_TOKEN_TYPE_ARRAY,
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| 157 |
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| 158 | /* do not remove */
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| 159 | T1_TOKEN_TYPE_MAX
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| 160 |
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| 161 | } T1_TokenType;
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| 162 |
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| 163 |
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| 164 | /* a simple structure used to identify tokens */
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| 165 | typedef struct T1_TokenRec_
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| 166 | {
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| 167 | FT_Byte* start; /* first character of token in input stream */
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| 168 | FT_Byte* limit; /* first character after the token */
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| 169 | T1_TokenType type; /* type of token */
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| 170 |
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| 171 | } T1_TokenRec;
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| 172 |
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| 173 |
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| 174 | /* enumeration type used to identify object fields */
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| 175 | typedef enum T1_FieldType_
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| 176 | {
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| 177 | T1_FIELD_TYPE_NONE = 0,
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| 178 | T1_FIELD_TYPE_BOOL,
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| 179 | T1_FIELD_TYPE_INTEGER,
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| 180 | T1_FIELD_TYPE_FIXED,
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| 181 | T1_FIELD_TYPE_FIXED_1000,
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| 182 | T1_FIELD_TYPE_STRING,
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| 183 | T1_FIELD_TYPE_KEY,
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| 184 | T1_FIELD_TYPE_BBOX,
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| 185 | T1_FIELD_TYPE_INTEGER_ARRAY,
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| 186 | T1_FIELD_TYPE_FIXED_ARRAY,
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| 187 | T1_FIELD_TYPE_CALLBACK,
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| 188 |
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| 189 | /* do not remove */
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| 190 | T1_FIELD_TYPE_MAX
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| 191 |
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| 192 | } T1_FieldType;
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| 193 |
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| 194 |
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| 195 | typedef enum T1_FieldLocation_
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| 196 | {
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| 197 | T1_FIELD_LOCATION_CID_INFO,
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| 198 | T1_FIELD_LOCATION_FONT_DICT,
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| 199 | T1_FIELD_LOCATION_FONT_INFO,
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| 200 | T1_FIELD_LOCATION_PRIVATE,
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| 201 | T1_FIELD_LOCATION_BBOX,
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| 202 |
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| 203 | /* do not remove */
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| 204 | T1_FIELD_LOCATION_MAX
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| 205 |
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| 206 | } T1_FieldLocation;
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| 207 |
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| 208 |
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| 209 | typedef void
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| 210 | (*T1_Field_ParseFunc)( FT_Face face,
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| 211 | FT_Pointer parser );
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| 212 |
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| 213 |
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| 214 | /* structure type used to model object fields */
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| 215 | typedef struct T1_FieldRec_
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| 216 | {
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| 217 | const char* ident; /* field identifier */
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| 218 | T1_FieldLocation location;
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| 219 | T1_FieldType type; /* type of field */
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| 220 | T1_Field_ParseFunc reader;
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| 221 | FT_UInt offset; /* offset of field in object */
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| 222 | FT_Byte size; /* size of field in bytes */
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| 223 | FT_UInt array_max; /* maximal number of elements for */
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| 224 | /* array */
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| 225 | FT_UInt count_offset; /* offset of element count for */
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| 226 | /* arrays */
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| 227 | } T1_FieldRec;
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| 228 |
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| 229 |
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| 230 | #define T1_NEW_SIMPLE_FIELD( _ident, _type, _fname ) \
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| 231 | { \
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| 232 | _ident, T1CODE, _type, \
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| 233 | 0, \
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| 234 | FT_FIELD_OFFSET( _fname ), \
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| 235 | FT_FIELD_SIZE( _fname ), \
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| 236 | 0, 0 \
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| 237 | },
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| 238 |
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| 239 | #define T1_NEW_CALLBACK_FIELD( _ident, _reader ) \
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| 240 | { \
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| 241 | _ident, T1CODE, T1_FIELD_TYPE_CALLBACK, \
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| 242 | (T1_Field_ParseFunc)_reader, \
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| 243 | 0, 0, \
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| 244 | 0, 0 \
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| 245 | },
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| 246 |
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| 247 | #define T1_NEW_TABLE_FIELD( _ident, _type, _fname, _max ) \
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| 248 | { \
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| 249 | _ident, T1CODE, _type, \
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| 250 | 0, \
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| 251 | FT_FIELD_OFFSET( _fname ), \
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| 252 | FT_FIELD_SIZE_DELTA( _fname ), \
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| 253 | _max, \
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| 254 | FT_FIELD_OFFSET( num_ ## _fname ) \
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| 255 | },
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| 256 |
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| 257 | #define T1_NEW_TABLE_FIELD2( _ident, _type, _fname, _max ) \
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| 258 | { \
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| 259 | _ident, T1CODE, _type, \
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| 260 | 0, \
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| 261 | FT_FIELD_OFFSET( _fname ), \
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| 262 | FT_FIELD_SIZE_DELTA( _fname ), \
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| 263 | _max, 0 \
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| 264 | },
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| 265 |
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| 266 |
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| 267 | #define T1_FIELD_BOOL( _ident, _fname ) \
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| 268 | T1_NEW_SIMPLE_FIELD( _ident, T1_FIELD_TYPE_BOOL, _fname )
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| 269 |
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| 270 | #define T1_FIELD_NUM( _ident, _fname ) \
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| 271 | T1_NEW_SIMPLE_FIELD( _ident, T1_FIELD_TYPE_INTEGER, _fname )
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| 272 |
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| 273 | #define T1_FIELD_FIXED( _ident, _fname ) \
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| 274 | T1_NEW_SIMPLE_FIELD( _ident, T1_FIELD_TYPE_FIXED, _fname )
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| 275 |
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| 276 | #define T1_FIELD_FIXED_1000( _ident, _fname ) \
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| 277 | T1_NEW_SIMPLE_FIELD( _ident, T1_FIELD_TYPE_FIXED_1000, _fname )
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| 278 |
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| 279 | #define T1_FIELD_STRING( _ident, _fname ) \
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| 280 | T1_NEW_SIMPLE_FIELD( _ident, T1_FIELD_TYPE_STRING, _fname )
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| 281 |
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| 282 | #define T1_FIELD_KEY( _ident, _fname ) \
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| 283 | T1_NEW_SIMPLE_FIELD( _ident, T1_FIELD_TYPE_KEY, _fname )
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| 284 |
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| 285 | #define T1_FIELD_BBOX( _ident, _fname ) \
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| 286 | T1_NEW_SIMPLE_FIELD( _ident, T1_FIELD_TYPE_BBOX, _fname )
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| 287 |
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| 288 |
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| 289 | #define T1_FIELD_NUM_TABLE( _ident, _fname, _fmax ) \
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| 290 | T1_NEW_TABLE_FIELD( _ident, T1_FIELD_TYPE_INTEGER_ARRAY, \
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| 291 | _fname, _fmax )
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| 292 |
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| 293 | #define T1_FIELD_FIXED_TABLE( _ident, _fname, _fmax ) \
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| 294 | T1_NEW_TABLE_FIELD( _ident, T1_FIELD_TYPE_FIXED_ARRAY, \
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| 295 | _fname, _fmax )
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| 296 |
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| 297 | #define T1_FIELD_NUM_TABLE2( _ident, _fname, _fmax ) \
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| 298 | T1_NEW_TABLE_FIELD2( _ident, T1_FIELD_TYPE_INTEGER_ARRAY, \
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| 299 | _fname, _fmax )
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| 300 |
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| 301 | #define T1_FIELD_FIXED_TABLE2( _ident, _fname, _fmax ) \
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| 302 | T1_NEW_TABLE_FIELD2( _ident, T1_FIELD_TYPE_FIXED_ARRAY, \
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| 303 | _fname, _fmax )
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| 304 |
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| 305 | #define T1_FIELD_CALLBACK( _ident, _name ) \
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| 306 | T1_NEW_CALLBACK_FIELD( _ident, _name )
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| 307 |
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| 308 |
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| 309 | /*************************************************************************/
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| 310 | /*************************************************************************/
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| 311 | /***** *****/
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| 312 | /***** T1 PARSER *****/
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| 313 | /***** *****/
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| 314 | /*************************************************************************/
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| 315 | /*************************************************************************/
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| 316 |
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| 317 | typedef const struct PS_Parser_FuncsRec_* PS_Parser_Funcs;
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| 318 |
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| 319 | typedef struct PS_Parser_FuncsRec_
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| 320 | {
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| 321 | void
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| 322 | (*init)( PS_Parser parser,
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| 323 | FT_Byte* base,
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| 324 | FT_Byte* limit,
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| 325 | FT_Memory memory );
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| 326 |
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| 327 | void
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| 328 | (*done)( PS_Parser parser );
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| 329 |
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| 330 | void
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| 331 | (*skip_spaces)( PS_Parser parser );
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| 332 | void
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| 333 | (*skip_PS_token)( PS_Parser parser );
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| 334 |
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| 335 | FT_Long
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| 336 | (*to_int)( PS_Parser parser );
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| 337 | FT_Fixed
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| 338 | (*to_fixed)( PS_Parser parser,
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| 339 | FT_Int power_ten );
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| 340 |
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| 341 | FT_Error
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| 342 | (*to_bytes)( PS_Parser parser,
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| 343 | FT_Byte* bytes,
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| 344 | FT_Long max_bytes,
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| 345 | FT_Long* pnum_bytes,
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| 346 | FT_Bool delimiters );
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| 347 |
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| 348 | FT_Int
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| 349 | (*to_coord_array)( PS_Parser parser,
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| 350 | FT_Int max_coords,
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| 351 | FT_Short* coords );
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| 352 | FT_Int
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| 353 | (*to_fixed_array)( PS_Parser parser,
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| 354 | FT_Int max_values,
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| 355 | FT_Fixed* values,
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| 356 | FT_Int power_ten );
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| 357 |
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| 358 | void
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| 359 | (*to_token)( PS_Parser parser,
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| 360 | T1_Token token );
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| 361 | void
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| 362 | (*to_token_array)( PS_Parser parser,
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| 363 | T1_Token tokens,
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| 364 | FT_UInt max_tokens,
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| 365 | FT_Int* pnum_tokens );
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| 366 |
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| 367 | FT_Error
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| 368 | (*load_field)( PS_Parser parser,
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| 369 | const T1_Field field,
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| 370 | void** objects,
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| 371 | FT_UInt max_objects,
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| 372 | FT_ULong* pflags );
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| 373 |
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| 374 | FT_Error
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| 375 | (*load_field_table)( PS_Parser parser,
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| 376 | const T1_Field field,
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| 377 | void** objects,
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| 378 | FT_UInt max_objects,
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| 379 | FT_ULong* pflags );
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| 380 |
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| 381 | } PS_Parser_FuncsRec;
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| 382 |
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| 383 |
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| 384 | /*************************************************************************/
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| 385 | /* */
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| 386 | /* <Struct> */
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| 387 | /* PS_ParserRec */
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| 388 | /* */
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| 389 | /* <Description> */
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| 390 | /* A PS_Parser is an object used to parse a Type 1 font very quickly. */
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| 391 | /* */
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| 392 | /* <Fields> */
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| 393 | /* cursor :: The current position in the text. */
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| 394 | /* */
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| 395 | /* base :: Start of the processed text. */
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| 396 | /* */
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| 397 | /* limit :: End of the processed text. */
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| 398 | /* */
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| 399 | /* error :: The last error returned. */
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| 400 | /* */
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| 401 | /* memory :: The object used for memory operations (alloc/realloc). */
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| 402 | /* */
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| 403 | /* funcs :: A table of functions for the parser. */
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| 404 | /* */
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| 405 | typedef struct PS_ParserRec_
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| 406 | {
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| 407 | FT_Byte* cursor;
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| 408 | FT_Byte* base;
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| 409 | FT_Byte* limit;
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| 410 | FT_Error error;
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| 411 | FT_Memory memory;
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| 412 |
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| 413 | PS_Parser_FuncsRec funcs;
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| 414 |
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| 415 | } PS_ParserRec;
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| 416 |
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| 417 |
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| 418 | /*************************************************************************/
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| 419 | /*************************************************************************/
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| 420 | /***** *****/
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| 421 | /***** T1 BUILDER *****/
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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 |
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| 427 | typedef struct T1_BuilderRec_* T1_Builder;
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| 428 |
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| 429 |
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| 430 | typedef FT_Error
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| 431 | (*T1_Builder_Check_Points_Func)( T1_Builder builder,
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| 432 | FT_Int count );
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| 433 |
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| 434 | typedef void
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| 435 | (*T1_Builder_Add_Point_Func)( T1_Builder builder,
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| 436 | FT_Pos x,
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| 437 | FT_Pos y,
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| 438 | FT_Byte flag );
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| 439 |
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| 440 | typedef FT_Error
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| 441 | (*T1_Builder_Add_Point1_Func)( T1_Builder builder,
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| 442 | FT_Pos x,
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| 443 | FT_Pos y );
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| 444 |
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| 445 | typedef FT_Error
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| 446 | (*T1_Builder_Add_Contour_Func)( T1_Builder builder );
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| 447 |
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| 448 | typedef FT_Error
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| 449 | (*T1_Builder_Start_Point_Func)( T1_Builder builder,
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| 450 | FT_Pos x,
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| 451 | FT_Pos y );
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| 452 |
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| 453 | typedef void
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| 454 | (*T1_Builder_Close_Contour_Func)( T1_Builder builder );
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| 455 |
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| 456 |
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| 457 | typedef const struct T1_Builder_FuncsRec_* T1_Builder_Funcs;
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| 458 |
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| 459 | typedef struct T1_Builder_FuncsRec_
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| 460 | {
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| 461 | void
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| 462 | (*init)( T1_Builder builder,
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| 463 | FT_Face face,
|
---|
| 464 | FT_Size size,
|
---|
| 465 | FT_GlyphSlot slot,
|
---|
| 466 | FT_Bool hinting );
|
---|
| 467 |
|
---|
| 468 | void
|
---|
| 469 | (*done)( T1_Builder builder );
|
---|
| 470 |
|
---|
| 471 | T1_Builder_Check_Points_Func check_points;
|
---|
| 472 | T1_Builder_Add_Point_Func add_point;
|
---|
| 473 | T1_Builder_Add_Point1_Func add_point1;
|
---|
| 474 | T1_Builder_Add_Contour_Func add_contour;
|
---|
| 475 | T1_Builder_Start_Point_Func start_point;
|
---|
| 476 | T1_Builder_Close_Contour_Func close_contour;
|
---|
| 477 |
|
---|
| 478 | } T1_Builder_FuncsRec;
|
---|
| 479 |
|
---|
| 480 |
|
---|
| 481 | /* an enumeration type to handle charstring parsing states */
|
---|
| 482 | typedef enum T1_ParseState_
|
---|
| 483 | {
|
---|
| 484 | T1_Parse_Start,
|
---|
| 485 | T1_Parse_Have_Width,
|
---|
| 486 | T1_Parse_Have_Moveto,
|
---|
| 487 | T1_Parse_Have_Path
|
---|
| 488 |
|
---|
| 489 | } T1_ParseState;
|
---|
| 490 |
|
---|
| 491 |
|
---|
| 492 | /*************************************************************************/
|
---|
| 493 | /* */
|
---|
| 494 | /* <Structure> */
|
---|
| 495 | /* T1_BuilderRec */
|
---|
| 496 | /* */
|
---|
| 497 | /* <Description> */
|
---|
| 498 | /* A structure used during glyph loading to store its outline. */
|
---|
| 499 | /* */
|
---|
| 500 | /* <Fields> */
|
---|
| 501 | /* memory :: The current memory object. */
|
---|
| 502 | /* */
|
---|
| 503 | /* face :: The current face object. */
|
---|
| 504 | /* */
|
---|
| 505 | /* glyph :: The current glyph slot. */
|
---|
| 506 | /* */
|
---|
| 507 | /* loader :: XXX */
|
---|
| 508 | /* */
|
---|
| 509 | /* base :: The base glyph outline. */
|
---|
| 510 | /* */
|
---|
| 511 | /* current :: The current glyph outline. */
|
---|
| 512 | /* */
|
---|
| 513 | /* max_points :: maximum points in builder outline */
|
---|
| 514 | /* */
|
---|
| 515 | /* max_contours :: Maximal number of contours in builder outline. */
|
---|
| 516 | /* */
|
---|
| 517 | /* last :: The last point position. */
|
---|
| 518 | /* */
|
---|
| 519 | /* scale_x :: The horizontal scale (FUnits to sub-pixels). */
|
---|
| 520 | /* */
|
---|
| 521 | /* scale_y :: The vertical scale (FUnits to sub-pixels). */
|
---|
| 522 | /* */
|
---|
| 523 | /* pos_x :: The horizontal translation (if composite glyph). */
|
---|
| 524 | /* */
|
---|
| 525 | /* pos_y :: The vertical translation (if composite glyph). */
|
---|
| 526 | /* */
|
---|
| 527 | /* left_bearing :: The left side bearing point. */
|
---|
| 528 | /* */
|
---|
| 529 | /* advance :: The horizontal advance vector. */
|
---|
| 530 | /* */
|
---|
| 531 | /* bbox :: Unused. */
|
---|
| 532 | /* */
|
---|
| 533 | /* parse_state :: An enumeration which controls the charstring */
|
---|
| 534 | /* parsing state. */
|
---|
| 535 | /* */
|
---|
| 536 | /* load_points :: If this flag is not set, no points are loaded. */
|
---|
| 537 | /* */
|
---|
| 538 | /* no_recurse :: Set but not used. */
|
---|
| 539 | /* */
|
---|
| 540 | /* metrics_only :: A boolean indicating that we only want to compute */
|
---|
| 541 | /* the metrics of a given glyph, not load all of its */
|
---|
| 542 | /* points. */
|
---|
| 543 | /* */
|
---|
| 544 | /* funcs :: An array of function pointers for the builder. */
|
---|
| 545 | /* */
|
---|
| 546 | typedef struct T1_BuilderRec_
|
---|
| 547 | {
|
---|
| 548 | FT_Memory memory;
|
---|
| 549 | FT_Face face;
|
---|
| 550 | FT_GlyphSlot glyph;
|
---|
| 551 | FT_GlyphLoader loader;
|
---|
| 552 | FT_Outline* base;
|
---|
| 553 | FT_Outline* current;
|
---|
| 554 |
|
---|
| 555 | FT_Vector last;
|
---|
| 556 |
|
---|
| 557 | FT_Fixed scale_x;
|
---|
| 558 | FT_Fixed scale_y;
|
---|
| 559 |
|
---|
| 560 | FT_Pos pos_x;
|
---|
| 561 | FT_Pos pos_y;
|
---|
| 562 |
|
---|
| 563 | FT_Vector left_bearing;
|
---|
| 564 | FT_Vector advance;
|
---|
| 565 |
|
---|
| 566 | FT_BBox bbox; /* bounding box */
|
---|
| 567 | T1_ParseState parse_state;
|
---|
| 568 | FT_Bool load_points;
|
---|
| 569 | FT_Bool no_recurse;
|
---|
| 570 | FT_Bool shift;
|
---|
| 571 |
|
---|
| 572 | FT_Bool metrics_only;
|
---|
| 573 |
|
---|
| 574 | void* hints_funcs; /* hinter-specific */
|
---|
| 575 | void* hints_globals; /* hinter-specific */
|
---|
| 576 |
|
---|
| 577 | T1_Builder_FuncsRec funcs;
|
---|
| 578 |
|
---|
| 579 | } T1_BuilderRec;
|
---|
| 580 |
|
---|
| 581 |
|
---|
| 582 | /*************************************************************************/
|
---|
| 583 | /*************************************************************************/
|
---|
| 584 | /***** *****/
|
---|
| 585 | /***** T1 DECODER *****/
|
---|
| 586 | /***** *****/
|
---|
| 587 | /*************************************************************************/
|
---|
| 588 | /*************************************************************************/
|
---|
| 589 |
|
---|
| 590 | #if 0
|
---|
| 591 |
|
---|
| 592 | /*************************************************************************/
|
---|
| 593 | /* */
|
---|
| 594 | /* T1_MAX_SUBRS_CALLS details the maximum number of nested sub-routine */
|
---|
| 595 | /* calls during glyph loading. */
|
---|
| 596 | /* */
|
---|
| 597 | #define T1_MAX_SUBRS_CALLS 8
|
---|
| 598 |
|
---|
| 599 |
|
---|
| 600 | /*************************************************************************/
|
---|
| 601 | /* */
|
---|
| 602 | /* T1_MAX_CHARSTRING_OPERANDS is the charstring stack's capacity. A */
|
---|
| 603 | /* minimum of 16 is required. */
|
---|
| 604 | /* */
|
---|
| 605 | #define T1_MAX_CHARSTRINGS_OPERANDS 32
|
---|
| 606 |
|
---|
| 607 | #endif /* 0 */
|
---|
| 608 |
|
---|
| 609 |
|
---|
| 610 | typedef struct T1_Decoder_ZoneRec_
|
---|
| 611 | {
|
---|
| 612 | FT_Byte* cursor;
|
---|
| 613 | FT_Byte* base;
|
---|
| 614 | FT_Byte* limit;
|
---|
| 615 |
|
---|
| 616 | } T1_Decoder_ZoneRec, *T1_Decoder_Zone;
|
---|
| 617 |
|
---|
| 618 |
|
---|
| 619 | typedef struct T1_DecoderRec_* T1_Decoder;
|
---|
| 620 | typedef const struct T1_Decoder_FuncsRec_* T1_Decoder_Funcs;
|
---|
| 621 |
|
---|
| 622 |
|
---|
| 623 | typedef FT_Error
|
---|
| 624 | (*T1_Decoder_Callback)( T1_Decoder decoder,
|
---|
| 625 | FT_UInt glyph_index );
|
---|
| 626 |
|
---|
| 627 |
|
---|
| 628 | typedef struct T1_Decoder_FuncsRec_
|
---|
| 629 | {
|
---|
| 630 | FT_Error
|
---|
| 631 | (*init)( T1_Decoder decoder,
|
---|
| 632 | FT_Face face,
|
---|
| 633 | FT_Size size,
|
---|
| 634 | FT_GlyphSlot slot,
|
---|
| 635 | FT_Byte** glyph_names,
|
---|
| 636 | PS_Blend blend,
|
---|
| 637 | FT_Bool hinting,
|
---|
| 638 | FT_Render_Mode hint_mode,
|
---|
| 639 | T1_Decoder_Callback callback );
|
---|
| 640 |
|
---|
| 641 | void
|
---|
| 642 | (*done)( T1_Decoder decoder );
|
---|
| 643 |
|
---|
| 644 | FT_Error
|
---|
| 645 | (*parse_charstrings)( T1_Decoder decoder,
|
---|
| 646 | FT_Byte* base,
|
---|
| 647 | FT_UInt len );
|
---|
| 648 |
|
---|
| 649 | } T1_Decoder_FuncsRec;
|
---|
| 650 |
|
---|
| 651 |
|
---|
| 652 | typedef struct T1_DecoderRec_
|
---|
| 653 | {
|
---|
| 654 | T1_BuilderRec builder;
|
---|
| 655 |
|
---|
| 656 | FT_Long stack[T1_MAX_CHARSTRINGS_OPERANDS];
|
---|
| 657 | FT_Long* top;
|
---|
| 658 |
|
---|
| 659 | T1_Decoder_ZoneRec zones[T1_MAX_SUBRS_CALLS + 1];
|
---|
| 660 | T1_Decoder_Zone zone;
|
---|
| 661 |
|
---|
| 662 | FT_Service_PsCMaps psnames; /* for seac */
|
---|
| 663 | FT_UInt num_glyphs;
|
---|
| 664 | FT_Byte** glyph_names;
|
---|
| 665 |
|
---|
| 666 | FT_Int lenIV; /* internal for sub routine calls */
|
---|
| 667 | FT_UInt num_subrs;
|
---|
| 668 | FT_Byte** subrs;
|
---|
| 669 | FT_PtrDist* subrs_len; /* array of subrs length (optional) */
|
---|
| 670 |
|
---|
| 671 | FT_Matrix font_matrix;
|
---|
| 672 | FT_Vector font_offset;
|
---|
| 673 |
|
---|
| 674 | FT_Int flex_state;
|
---|
| 675 | FT_Int num_flex_vectors;
|
---|
| 676 | FT_Vector flex_vectors[7];
|
---|
| 677 |
|
---|
| 678 | PS_Blend blend; /* for multiple master support */
|
---|
| 679 |
|
---|
| 680 | FT_Render_Mode hint_mode;
|
---|
| 681 |
|
---|
| 682 | T1_Decoder_Callback parse_callback;
|
---|
| 683 | T1_Decoder_FuncsRec funcs;
|
---|
| 684 |
|
---|
| 685 | } T1_DecoderRec;
|
---|
| 686 |
|
---|
| 687 |
|
---|
| 688 | /*************************************************************************/
|
---|
| 689 | /*************************************************************************/
|
---|
| 690 | /***** *****/
|
---|
| 691 | /***** TYPE1 CHARMAPS *****/
|
---|
| 692 | /***** *****/
|
---|
| 693 | /*************************************************************************/
|
---|
| 694 | /*************************************************************************/
|
---|
| 695 |
|
---|
| 696 | typedef const struct T1_CMap_ClassesRec_* T1_CMap_Classes;
|
---|
| 697 |
|
---|
| 698 | typedef struct T1_CMap_ClassesRec_
|
---|
| 699 | {
|
---|
| 700 | FT_CMap_Class standard;
|
---|
| 701 | FT_CMap_Class expert;
|
---|
| 702 | FT_CMap_Class custom;
|
---|
| 703 | FT_CMap_Class unicode;
|
---|
| 704 |
|
---|
| 705 | } T1_CMap_ClassesRec;
|
---|
| 706 |
|
---|
| 707 |
|
---|
| 708 | /*************************************************************************/
|
---|
| 709 | /*************************************************************************/
|
---|
| 710 | /***** *****/
|
---|
| 711 | /***** PSAux Module Interface *****/
|
---|
| 712 | /***** *****/
|
---|
| 713 | /*************************************************************************/
|
---|
| 714 | /*************************************************************************/
|
---|
| 715 |
|
---|
| 716 | typedef struct PSAux_ServiceRec_
|
---|
| 717 | {
|
---|
| 718 | /* don't use `PS_Table_Funcs' and friends to avoid compiler warnings */
|
---|
| 719 | const PS_Table_FuncsRec* ps_table_funcs;
|
---|
| 720 | const PS_Parser_FuncsRec* ps_parser_funcs;
|
---|
| 721 | const T1_Builder_FuncsRec* t1_builder_funcs;
|
---|
| 722 | const T1_Decoder_FuncsRec* t1_decoder_funcs;
|
---|
| 723 |
|
---|
| 724 | void
|
---|
| 725 | (*t1_decrypt)( FT_Byte* buffer,
|
---|
| 726 | FT_Offset length,
|
---|
| 727 | FT_UShort seed );
|
---|
| 728 |
|
---|
| 729 | T1_CMap_Classes t1_cmap_classes;
|
---|
| 730 |
|
---|
| 731 | } PSAux_ServiceRec, *PSAux_Service;
|
---|
| 732 |
|
---|
| 733 | /* backwards-compatible type definition */
|
---|
| 734 | typedef PSAux_ServiceRec PSAux_Interface;
|
---|
| 735 |
|
---|
| 736 | FT_END_HEADER
|
---|
| 737 |
|
---|
| 738 | #endif /* __PSAUX_H__ */
|
---|
| 739 |
|
---|
| 740 |
|
---|
| 741 | /* END */
|
---|