sdk-world v2026.11.05
PS2 SDK - world tier (copyleft-allowed, non-essential packages)
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ftpfr.c
1/****************************************************************************
2 *
3 * ftpfr.c
4 *
5 * FreeType API for accessing PFR-specific data (body).
6 *
7 * Copyright (C) 2002-2025 by
8 * David Turner, Robert Wilhelm, and Werner Lemberg.
9 *
10 * This file is part of the FreeType project, and may only be used,
11 * modified, and distributed under the terms of the FreeType project
12 * license, LICENSE.TXT. By continuing to use, modify, or distribute
13 * this file you indicate that you have read the license and
14 * understand and accept it fully.
15 *
16 */
17
18#include <freetype/internal/ftdebug.h>
19
20#include <freetype/internal/ftobjs.h>
21#include <freetype/internal/services/svpfr.h>
22
23
24 /* check the format */
25 static FT_Service_PfrMetrics
26 ft_pfr_check( FT_Face face )
27 {
28 FT_Service_PfrMetrics service = NULL;
29
30
31 if ( face )
32 FT_FACE_LOOKUP_SERVICE( face, service, PFR_METRICS );
33
34 return service;
35 }
36
37
38 /* documentation is in ftpfr.h */
39
40 FT_EXPORT_DEF( FT_Error )
41 FT_Get_PFR_Metrics( FT_Face face,
42 FT_UInt *aoutline_resolution,
43 FT_UInt *ametrics_resolution,
44 FT_Fixed *ametrics_x_scale,
45 FT_Fixed *ametrics_y_scale )
46 {
47 FT_Error error = FT_Err_Ok;
48 FT_Service_PfrMetrics service;
49
50
51 if ( !face )
52 return FT_THROW( Invalid_Face_Handle );
53
54 service = ft_pfr_check( face );
55 if ( service )
56 {
57 error = service->get_metrics( face,
58 aoutline_resolution,
59 ametrics_resolution,
60 ametrics_x_scale,
61 ametrics_y_scale );
62 }
63 else
64 {
65 FT_Fixed x_scale, y_scale;
66
67
68 /* this is not a PFR font */
69 if ( aoutline_resolution )
70 *aoutline_resolution = face->units_per_EM;
71
72 if ( ametrics_resolution )
73 *ametrics_resolution = face->units_per_EM;
74
75 x_scale = y_scale = 0x10000L;
76 if ( face->size )
77 {
78 x_scale = face->size->metrics.x_scale;
79 y_scale = face->size->metrics.y_scale;
80 }
81
82 if ( ametrics_x_scale )
83 *ametrics_x_scale = x_scale;
84
85 if ( ametrics_y_scale )
86 *ametrics_y_scale = y_scale;
87
88 error = FT_THROW( Unknown_File_Format );
89 }
90
91 return error;
92 }
93
94
95 /* documentation is in ftpfr.h */
96
97 FT_EXPORT_DEF( FT_Error )
98 FT_Get_PFR_Kerning( FT_Face face,
99 FT_UInt left,
100 FT_UInt right,
101 FT_Vector *avector )
102 {
103 FT_Error error;
104 FT_Service_PfrMetrics service;
105
106
107 if ( !face )
108 return FT_THROW( Invalid_Face_Handle );
109
110 if ( !avector )
111 return FT_THROW( Invalid_Argument );
112
113 service = ft_pfr_check( face );
114 if ( service )
115 error = service->get_kerning( face, left, right, avector );
116 else
117 error = FT_Get_Kerning( face, left, right,
118 FT_KERNING_UNSCALED, avector );
119
120 return error;
121 }
122
123
124 /* documentation is in ftpfr.h */
125
126 FT_EXPORT_DEF( FT_Error )
127 FT_Get_PFR_Advance( FT_Face face,
128 FT_UInt gindex,
129 FT_Pos *aadvance )
130 {
131 FT_Error error;
132 FT_Service_PfrMetrics service;
133
134
135 if ( !face )
136 return FT_THROW( Invalid_Face_Handle );
137
138 if ( !aadvance )
139 return FT_THROW( Invalid_Argument );
140
141 service = ft_pfr_check( face );
142 if ( service )
143 error = service->get_advance( face, gindex, aadvance );
144 else
145 /* XXX: TODO: PROVIDE ADVANCE-LOADING METHOD TO ALL FONT DRIVERS */
146 error = FT_THROW( Invalid_Argument );
147
148 return error;
149 }
150
151
152/* END */