1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
|
/***************************************************************************/
/* */
/* t42drivr.c */
/* */
/* High-level Type 42 driver interface (body). */
/* */
/* Copyright 2002-2004, 2006, 2007, 2009, 2011 by Roberto Alameda. */
/* */
/* This file is part of the FreeType project, and may only be used, */
/* modified, and distributed under the terms of the FreeType project */
/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
/* this file you indicate that you have read the license and */
/* understand and accept it fully. */
/* */
/***************************************************************************/
/*************************************************************************/
/* */
/* This driver implements Type42 fonts as described in the */
/* Technical Note #5012 from Adobe, with these limitations: */
/* */
/* 1) CID Fonts are not currently supported. */
/* 2) Incremental fonts making use of the GlyphDirectory keyword */
/* will be loaded, but the rendering will be using the TrueType */
/* tables. */
/* 3) As for Type1 fonts, CDevProc is not supported. */
/* 4) The Metrics dictionary is not supported. */
/* 5) AFM metrics are not supported. */
/* */
/* In other words, this driver supports Type42 fonts derived from */
/* TrueType fonts in a non-CID manner, as done by usual conversion */
/* programs. */
/* */
/*************************************************************************/
#include "t42drivr.h"
#include "t42objs.h"
#include "t42error.h"
#include <freetype/internal/ftdebug.h>
#include FT_SERVICE_XFREE86_NAME_H
#include FT_SERVICE_GLYPH_DICT_H
#include FT_SERVICE_POSTSCRIPT_NAME_H
#include <freetype/internal/services/svpsinfo.h>
#undef FT_COMPONENT
#define FT_COMPONENT trace_t42
/*
*
* GLYPH DICT SERVICE
*
*/
static FT_Error
t42_get_glyph_name( T42_Face face,
FT_UInt glyph_index,
FT_Pointer buffer,
FT_UInt buffer_max )
{
FT_STRCPYN( buffer, face->type1.glyph_names[glyph_index], buffer_max );
return T42_Err_Ok;
}
static FT_UInt
t42_get_name_index( T42_Face face,
FT_String* glyph_name )
{
FT_Int i;
FT_String* gname;
for ( i = 0; i < face->type1.num_glyphs; i++ )
{
gname = face->type1.glyph_names[i];
if ( glyph_name[0] == gname[0] && !ft_strcmp( glyph_name, gname ) )
return (FT_UInt)ft_atol( (const char *)face->type1.charstrings[i] );
}
return 0;
}
static const FT_Service_GlyphDictRec t42_service_glyph_dict =
{
(FT_GlyphDict_GetNameFunc) t42_get_glyph_name,
(FT_GlyphDict_NameIndexFunc)t42_get_name_index
};
/*
*
* POSTSCRIPT NAME SERVICE
*
*/
static const char*
t42_get_ps_font_name( T42_Face face )
{
return (const char*)face->type1.font_name;
}
static const FT_Service_PsFontNameRec t42_service_ps_font_name =
{
(FT_PsName_GetFunc)t42_get_ps_font_name
};
/*
*
* POSTSCRIPT INFO SERVICE
*
*/
static FT_Error
t42_ps_get_font_info( FT_Face face,
PS_FontInfoRec* afont_info )
{
*afont_info = ((T42_Face)face)->type1.font_info;
return T42_Err_Ok;
}
static FT_Error
t42_ps_get_font_extra( FT_Face face,
PS_FontExtraRec* afont_extra )
{
*afont_extra = ((T42_Face)face)->type1.font_extra;
return T42_Err_Ok;
}
static FT_Int
t42_ps_has_glyph_names( FT_Face face )
{
FT_UNUSED( face );
return 1;
}
static FT_Error
t42_ps_get_font_private( FT_Face face,
PS_PrivateRec* afont_private )
{
*afont_private = ((T42_Face)face)->type1.private_dict;
return T42_Err_Ok;
}
static const FT_Service_PsInfoRec t42_service_ps_info =
{
(PS_GetFontInfoFunc) t42_ps_get_font_info,
(PS_GetFontExtraFunc) t42_ps_get_font_extra,
(PS_HasGlyphNamesFunc) t42_ps_has_glyph_names,
(PS_GetFontPrivateFunc)t42_ps_get_font_private,
(PS_GetFontValueFunc) NULL /* not implemented */
};
/*
*
* SERVICE LIST
*
*/
static const FT_ServiceDescRec t42_services[] =
{
{ FT_SERVICE_ID_GLYPH_DICT, &t42_service_glyph_dict },
{ FT_SERVICE_ID_POSTSCRIPT_FONT_NAME, &t42_service_ps_font_name },
{ FT_SERVICE_ID_POSTSCRIPT_INFO, &t42_service_ps_info },
{ FT_SERVICE_ID_XF86_NAME, FT_XF86_FORMAT_TYPE_42 },
{ NULL, NULL }
};
static FT_Module_Interface
T42_Get_Interface( FT_Driver driver,
const FT_String* t42_interface )
{
FT_UNUSED( driver );
return ft_service_list_lookup( t42_services, t42_interface );
}
const FT_Driver_ClassRec t42_driver_class =
{
{
FT_MODULE_FONT_DRIVER |
FT_MODULE_DRIVER_SCALABLE |
#ifdef TT_USE_BYTECODE_INTERPRETER
FT_MODULE_DRIVER_HAS_HINTER,
#else
0,
#endif
sizeof ( T42_DriverRec ),
"type42",
0x10000L,
0x20000L,
0, /* format interface */
(FT_Module_Constructor)T42_Driver_Init,
(FT_Module_Destructor) T42_Driver_Done,
(FT_Module_Requester) T42_Get_Interface,
},
sizeof ( T42_FaceRec ),
sizeof ( T42_SizeRec ),
sizeof ( T42_GlyphSlotRec ),
(FT_Face_InitFunc) T42_Face_Init,
(FT_Face_DoneFunc) T42_Face_Done,
(FT_Size_InitFunc) T42_Size_Init,
(FT_Size_DoneFunc) T42_Size_Done,
(FT_Slot_InitFunc) T42_GlyphSlot_Init,
(FT_Slot_DoneFunc) T42_GlyphSlot_Done,
#ifdef FT_CONFIG_OPTION_OLD_INTERNALS
ft_stub_set_char_sizes,
ft_stub_set_pixel_sizes,
#endif
(FT_Slot_LoadFunc) T42_GlyphSlot_Load,
(FT_Face_GetKerningFunc) 0,
(FT_Face_AttachFunc) 0,
(FT_Face_GetAdvancesFunc) 0,
(FT_Size_RequestFunc) T42_Size_Request,
(FT_Size_SelectFunc) T42_Size_Select
};
/* END */
|
