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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 4349 | Serge | 1 | /***************************************************************************/ |
| 2 | /* */ |
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| 3 | /* t42drivr.c */ |
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| 4 | /* */ |
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| 5 | /* High-level Type 42 driver interface (body). */ |
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| 6 | /* */ |
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| 7 | /* Copyright 2002-2004, 2006, 2007, 2009, 2011, 2013 by */ |
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| 8 | /* Roberto Alameda. */ |
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| 9 | /* */ |
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| 10 | /* This file is part of the FreeType project, and may only be used, */ |
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| 11 | /* modified, and distributed under the terms of the FreeType project */ |
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| 12 | /* license, LICENSE.TXT. By continuing to use, modify, or distribute */ |
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| 13 | /* this file you indicate that you have read the license and */ |
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| 14 | /* understand and accept it fully. */ |
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| 15 | /* */ |
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| 16 | /***************************************************************************/ |
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| 17 | |||
| 18 | |||
| 19 | /*************************************************************************/ |
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| 20 | /* */ |
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| 21 | /* This driver implements Type42 fonts as described in the */ |
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| 22 | /* Technical Note #5012 from Adobe, with these limitations: */ |
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| 23 | /* */ |
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| 24 | /* 1) CID Fonts are not currently supported. */ |
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| 25 | /* 2) Incremental fonts making use of the GlyphDirectory keyword */ |
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| 26 | /* will be loaded, but the rendering will be using the TrueType */ |
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| 27 | /* tables. */ |
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| 28 | /* 3) As for Type1 fonts, CDevProc is not supported. */ |
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| 29 | /* 4) The Metrics dictionary is not supported. */ |
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| 30 | /* 5) AFM metrics are not supported. */ |
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| 31 | /* */ |
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| 32 | /* In other words, this driver supports Type42 fonts derived from */ |
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| 33 | /* TrueType fonts in a non-CID manner, as done by usual conversion */ |
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| 34 | /* programs. */ |
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| 35 | /* */ |
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| 36 | /*************************************************************************/ |
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| 37 | |||
| 38 | |||
| 39 | #include "t42drivr.h" |
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| 40 | #include "t42objs.h" |
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| 41 | #include "t42error.h" |
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| 42 | #include FT_INTERNAL_DEBUG_H |
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| 43 | |||
| 44 | #include FT_SERVICE_XFREE86_NAME_H |
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| 45 | #include FT_SERVICE_GLYPH_DICT_H |
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| 46 | #include FT_SERVICE_POSTSCRIPT_NAME_H |
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| 47 | #include FT_SERVICE_POSTSCRIPT_INFO_H |
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| 48 | |||
| 49 | #undef FT_COMPONENT |
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| 50 | #define FT_COMPONENT trace_t42 |
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| 51 | |||
| 52 | |||
| 53 | /* |
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| 54 | * |
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| 55 | * GLYPH DICT SERVICE |
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| 56 | * |
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| 57 | */ |
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| 58 | |||
| 59 | static FT_Error |
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| 60 | t42_get_glyph_name( T42_Face face, |
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| 61 | FT_UInt glyph_index, |
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| 62 | FT_Pointer buffer, |
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| 63 | FT_UInt buffer_max ) |
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| 64 | { |
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| 65 | FT_STRCPYN( buffer, face->type1.glyph_names[glyph_index], buffer_max ); |
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| 66 | |||
| 67 | return FT_Err_Ok; |
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| 68 | } |
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| 69 | |||
| 70 | |||
| 71 | static FT_UInt |
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| 72 | t42_get_name_index( T42_Face face, |
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| 73 | FT_String* glyph_name ) |
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| 74 | { |
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| 75 | FT_Int i; |
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| 76 | |||
| 77 | |||
| 78 | for ( i = 0; i < face->type1.num_glyphs; i++ ) |
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| 79 | { |
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| 80 | FT_String* gname = face->type1.glyph_names[i]; |
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| 81 | |||
| 82 | |||
| 83 | if ( glyph_name[0] == gname[0] && !ft_strcmp( glyph_name, gname ) ) |
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| 84 | return (FT_UInt)ft_atol( (const char *)face->type1.charstrings[i] ); |
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| 85 | } |
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| 86 | |||
| 87 | return 0; |
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| 88 | } |
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| 89 | |||
| 90 | |||
| 91 | static const FT_Service_GlyphDictRec t42_service_glyph_dict = |
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| 92 | { |
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| 93 | (FT_GlyphDict_GetNameFunc) t42_get_glyph_name, |
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| 94 | (FT_GlyphDict_NameIndexFunc)t42_get_name_index |
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| 95 | }; |
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| 96 | |||
| 97 | |||
| 98 | /* |
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| 99 | * |
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| 100 | * POSTSCRIPT NAME SERVICE |
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| 101 | * |
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| 102 | */ |
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| 103 | |||
| 104 | static const char* |
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| 105 | t42_get_ps_font_name( T42_Face face ) |
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| 106 | { |
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| 107 | return (const char*)face->type1.font_name; |
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| 108 | } |
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| 109 | |||
| 110 | |||
| 111 | static const FT_Service_PsFontNameRec t42_service_ps_font_name = |
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| 112 | { |
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| 113 | (FT_PsName_GetFunc)t42_get_ps_font_name |
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| 114 | }; |
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| 115 | |||
| 116 | |||
| 117 | /* |
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| 118 | * |
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| 119 | * POSTSCRIPT INFO SERVICE |
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| 120 | * |
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| 121 | */ |
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| 122 | |||
| 123 | static FT_Error |
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| 124 | t42_ps_get_font_info( FT_Face face, |
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| 125 | PS_FontInfoRec* afont_info ) |
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| 126 | { |
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| 127 | *afont_info = ((T42_Face)face)->type1.font_info; |
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| 128 | |||
| 129 | return FT_Err_Ok; |
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| 130 | } |
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| 131 | |||
| 132 | |||
| 133 | static FT_Error |
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| 134 | t42_ps_get_font_extra( FT_Face face, |
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| 135 | PS_FontExtraRec* afont_extra ) |
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| 136 | { |
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| 137 | *afont_extra = ((T42_Face)face)->type1.font_extra; |
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| 138 | |||
| 139 | return FT_Err_Ok; |
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| 140 | } |
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| 141 | |||
| 142 | |||
| 143 | static FT_Int |
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| 144 | t42_ps_has_glyph_names( FT_Face face ) |
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| 145 | { |
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| 146 | FT_UNUSED( face ); |
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| 147 | |||
| 148 | return 1; |
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| 149 | } |
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| 150 | |||
| 151 | |||
| 152 | static FT_Error |
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| 153 | t42_ps_get_font_private( FT_Face face, |
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| 154 | PS_PrivateRec* afont_private ) |
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| 155 | { |
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| 156 | *afont_private = ((T42_Face)face)->type1.private_dict; |
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| 157 | |||
| 158 | return FT_Err_Ok; |
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| 159 | } |
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| 160 | |||
| 161 | |||
| 162 | static const FT_Service_PsInfoRec t42_service_ps_info = |
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| 163 | { |
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| 164 | (PS_GetFontInfoFunc) t42_ps_get_font_info, |
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| 165 | (PS_GetFontExtraFunc) t42_ps_get_font_extra, |
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| 166 | (PS_HasGlyphNamesFunc) t42_ps_has_glyph_names, |
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| 167 | (PS_GetFontPrivateFunc)t42_ps_get_font_private, |
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| 168 | (PS_GetFontValueFunc) NULL /* not implemented */ |
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| 169 | }; |
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| 170 | |||
| 171 | |||
| 172 | /* |
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| 173 | * |
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| 174 | * SERVICE LIST |
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| 175 | * |
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| 176 | */ |
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| 177 | |||
| 178 | static const FT_ServiceDescRec t42_services[] = |
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| 179 | { |
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| 180 | { FT_SERVICE_ID_GLYPH_DICT, &t42_service_glyph_dict }, |
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| 181 | { FT_SERVICE_ID_POSTSCRIPT_FONT_NAME, &t42_service_ps_font_name }, |
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| 182 | { FT_SERVICE_ID_POSTSCRIPT_INFO, &t42_service_ps_info }, |
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| 183 | { FT_SERVICE_ID_XF86_NAME, FT_XF86_FORMAT_TYPE_42 }, |
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| 184 | { NULL, NULL } |
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| 185 | }; |
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| 186 | |||
| 187 | |||
| 188 | FT_CALLBACK_DEF( FT_Module_Interface ) |
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| 189 | T42_Get_Interface( FT_Module module, |
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| 190 | const FT_String* t42_interface ) |
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| 191 | { |
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| 192 | FT_UNUSED( module ); |
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| 193 | |||
| 194 | return ft_service_list_lookup( t42_services, t42_interface ); |
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| 195 | } |
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| 196 | |||
| 197 | |||
| 198 | const FT_Driver_ClassRec t42_driver_class = |
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| 199 | { |
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| 200 | { |
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| 201 | FT_MODULE_FONT_DRIVER | |
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| 202 | FT_MODULE_DRIVER_SCALABLE | |
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| 203 | #ifdef TT_USE_BYTECODE_INTERPRETER |
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| 204 | FT_MODULE_DRIVER_HAS_HINTER, |
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| 205 | #else |
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| 206 | 0, |
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| 207 | #endif |
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| 208 | |||
| 209 | sizeof ( T42_DriverRec ), |
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| 210 | |||
| 211 | "type42", |
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| 212 | 0x10000L, |
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| 213 | 0x20000L, |
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| 214 | |||
| 215 | 0, /* format interface */ |
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| 216 | |||
| 217 | T42_Driver_Init, |
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| 218 | T42_Driver_Done, |
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| 219 | T42_Get_Interface, |
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| 220 | }, |
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| 221 | |||
| 222 | sizeof ( T42_FaceRec ), |
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| 223 | sizeof ( T42_SizeRec ), |
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| 224 | sizeof ( T42_GlyphSlotRec ), |
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| 225 | |||
| 226 | T42_Face_Init, |
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| 227 | T42_Face_Done, |
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| 228 | T42_Size_Init, |
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| 229 | T42_Size_Done, |
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| 230 | T42_GlyphSlot_Init, |
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| 231 | T42_GlyphSlot_Done, |
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| 232 | |||
| 233 | T42_GlyphSlot_Load, |
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| 234 | |||
| 235 | 0, /* FT_Face_GetKerningFunc */ |
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| 236 | 0, /* FT_Face_AttachFunc */ |
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| 237 | |||
| 238 | 0, /* FT_Face_GetAdvancesFunc */ |
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| 239 | T42_Size_Request, |
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| 240 | T42_Size_Select |
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| 241 | }; |
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| 242 | |||
| 243 | |||
| 244 | /* END */ |