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
|
/***************************************************************************/
/* */
/* pfrdrivr.c */
/* */
/* FreeType PFR driver interface (body). */
/* */
/* Copyright 2002, 2003, 2004, 2006, 2008 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* 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. */
/* */
/***************************************************************************/
#include <ft2build.h>
#include <freetype/internal/ftdebug.h>
#include <freetype/internal/ftstream.h>
#include FT_SERVICE_PFR_H
#include FT_SERVICE_XFREE86_NAME_H
#include "pfrdrivr.h"
#include "pfrobjs.h"
#include "pfrerror.h"
FT_CALLBACK_DEF( FT_Error )
pfr_get_kerning( FT_Face pfrface, /* PFR_Face */
FT_UInt left,
FT_UInt right,
FT_Vector *avector )
{
PFR_Face face = (PFR_Face)pfrface;
PFR_PhyFont phys = &face->phy_font;
pfr_face_get_kerning( pfrface, left, right, avector );
/* convert from metrics to outline units when necessary */
if ( phys->outline_resolution != phys->metrics_resolution )
{
if ( avector->x != 0 )
avector->x = FT_MulDiv( avector->x, phys->outline_resolution,
phys->metrics_resolution );
if ( avector->y != 0 )
avector->y = FT_MulDiv( avector->x, phys->outline_resolution,
phys->metrics_resolution );
}
return PFR_Err_Ok;
}
/*
* PFR METRICS SERVICE
*
*/
FT_CALLBACK_DEF( FT_Error )
pfr_get_advance( FT_Face pfrface, /* PFR_Face */
FT_UInt gindex,
FT_Pos *anadvance )
{
PFR_Face face = (PFR_Face)pfrface;
FT_Error error = PFR_Err_Invalid_Argument;
*anadvance = 0;
if ( !gindex )
goto Exit;
gindex--;
if ( face )
{
PFR_PhyFont phys = &face->phy_font;
if ( gindex < phys->num_chars )
{
*anadvance = phys->chars[gindex].advance;
error = 0;
}
}
Exit:
return error;
}
FT_CALLBACK_DEF( FT_Error )
pfr_get_metrics( FT_Face pfrface, /* PFR_Face */
FT_UInt *anoutline_resolution,
FT_UInt *ametrics_resolution,
FT_Fixed *ametrics_x_scale,
FT_Fixed *ametrics_y_scale )
{
PFR_Face face = (PFR_Face)pfrface;
PFR_PhyFont phys = &face->phy_font;
FT_Fixed x_scale, y_scale;
FT_Size size = face->root.size;
if ( anoutline_resolution )
*anoutline_resolution = phys->outline_resolution;
if ( ametrics_resolution )
*ametrics_resolution = phys->metrics_resolution;
x_scale = 0x10000L;
y_scale = 0x10000L;
if ( size )
{
x_scale = FT_DivFix( size->metrics.x_ppem << 6,
phys->metrics_resolution );
y_scale = FT_DivFix( size->metrics.y_ppem << 6,
phys->metrics_resolution );
}
if ( ametrics_x_scale )
*ametrics_x_scale = x_scale;
if ( ametrics_y_scale )
*ametrics_y_scale = y_scale;
return PFR_Err_Ok;
}
FT_CALLBACK_TABLE_DEF
const FT_Service_PfrMetricsRec pfr_metrics_service_rec =
{
pfr_get_metrics,
pfr_face_get_kerning,
pfr_get_advance
};
/*
* SERVICE LIST
*
*/
static const FT_ServiceDescRec pfr_services[] =
{
{ FT_SERVICE_ID_PFR_METRICS, &pfr_metrics_service_rec },
{ FT_SERVICE_ID_XF86_NAME, FT_XF86_FORMAT_PFR },
{ NULL, NULL }
};
FT_CALLBACK_DEF( FT_Module_Interface )
pfr_get_service( FT_Module module,
const FT_String* service_id )
{
FT_UNUSED( module );
return ft_service_list_lookup( pfr_services, service_id );
}
FT_CALLBACK_TABLE_DEF
const FT_Driver_ClassRec pfr_driver_class =
{
{
FT_MODULE_FONT_DRIVER |
FT_MODULE_DRIVER_SCALABLE,
sizeof( FT_DriverRec ),
"pfr",
0x10000L,
0x20000L,
NULL,
0,
0,
pfr_get_service
},
sizeof( PFR_FaceRec ),
sizeof( PFR_SizeRec ),
sizeof( PFR_SlotRec ),
pfr_face_init,
pfr_face_done,
0, /* FT_Size_InitFunc */
0, /* FT_Size_DoneFunc */
pfr_slot_init,
pfr_slot_done,
#ifdef FT_CONFIG_OPTION_OLD_INTERNALS
ft_stub_set_char_sizes,
ft_stub_set_pixel_sizes,
#endif
pfr_slot_load,
pfr_get_kerning,
0, /* FT_Face_AttachFunc */
0, /* FT_Face_GetAdvancesFunc */
0, /* FT_Size_RequestFunc */
0, /* FT_Size_SelectFunc */
};
/* END */
|
