Sync with trunk r47367
[reactos.git] / lib / 3rdparty / freetype / src / base / ftmm.c
1 /***************************************************************************/
2 /* */
3 /* ftmm.c */
4 /* */
5 /* Multiple Master font support (body). */
6 /* */
7 /* Copyright 1996-2001, 2003, 2004, 2009 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
19 #include <ft2build.h>
20 #include FT_MULTIPLE_MASTERS_H
21 #include FT_INTERNAL_OBJECTS_H
22 #include FT_SERVICE_MULTIPLE_MASTERS_H
23
24
25 /*************************************************************************/
26 /* */
27 /* The macro FT_COMPONENT is used in trace mode. It is an implicit */
28 /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */
29 /* messages during execution. */
30 /* */
31 #undef FT_COMPONENT
32 #define FT_COMPONENT trace_mm
33
34
35 static FT_Error
36 ft_face_get_mm_service( FT_Face face,
37 FT_Service_MultiMasters *aservice )
38 {
39 FT_Error error;
40
41
42 *aservice = NULL;
43
44 if ( !face )
45 return FT_Err_Invalid_Face_Handle;
46
47 error = FT_Err_Invalid_Argument;
48
49 if ( FT_HAS_MULTIPLE_MASTERS( face ) )
50 {
51 FT_FACE_LOOKUP_SERVICE( face,
52 *aservice,
53 MULTI_MASTERS );
54
55 if ( *aservice )
56 error = FT_Err_Ok;
57 }
58
59 return error;
60 }
61
62
63 /* documentation is in ftmm.h */
64
65 FT_EXPORT_DEF( FT_Error )
66 FT_Get_Multi_Master( FT_Face face,
67 FT_Multi_Master *amaster )
68 {
69 FT_Error error;
70 FT_Service_MultiMasters service;
71
72
73 error = ft_face_get_mm_service( face, &service );
74 if ( !error )
75 {
76 error = FT_Err_Invalid_Argument;
77 if ( service->get_mm )
78 error = service->get_mm( face, amaster );
79 }
80
81 return error;
82 }
83
84
85 /* documentation is in ftmm.h */
86
87 FT_EXPORT_DEF( FT_Error )
88 FT_Get_MM_Var( FT_Face face,
89 FT_MM_Var* *amaster )
90 {
91 FT_Error error;
92 FT_Service_MultiMasters service;
93
94
95 error = ft_face_get_mm_service( face, &service );
96 if ( !error )
97 {
98 error = FT_Err_Invalid_Argument;
99 if ( service->get_mm_var )
100 error = service->get_mm_var( face, amaster );
101 }
102
103 return error;
104 }
105
106
107 /* documentation is in ftmm.h */
108
109 FT_EXPORT_DEF( FT_Error )
110 FT_Set_MM_Design_Coordinates( FT_Face face,
111 FT_UInt num_coords,
112 FT_Long* coords )
113 {
114 FT_Error error;
115 FT_Service_MultiMasters service;
116
117
118 error = ft_face_get_mm_service( face, &service );
119 if ( !error )
120 {
121 error = FT_Err_Invalid_Argument;
122 if ( service->set_mm_design )
123 error = service->set_mm_design( face, num_coords, coords );
124 }
125
126 return error;
127 }
128
129
130 /* documentation is in ftmm.h */
131
132 FT_EXPORT_DEF( FT_Error )
133 FT_Set_Var_Design_Coordinates( FT_Face face,
134 FT_UInt num_coords,
135 FT_Fixed* coords )
136 {
137 FT_Error error;
138 FT_Service_MultiMasters service;
139
140
141 error = ft_face_get_mm_service( face, &service );
142 if ( !error )
143 {
144 error = FT_Err_Invalid_Argument;
145 if ( service->set_var_design )
146 error = service->set_var_design( face, num_coords, coords );
147 }
148
149 return error;
150 }
151
152
153 /* documentation is in ftmm.h */
154
155 FT_EXPORT_DEF( FT_Error )
156 FT_Set_MM_Blend_Coordinates( FT_Face face,
157 FT_UInt num_coords,
158 FT_Fixed* coords )
159 {
160 FT_Error error;
161 FT_Service_MultiMasters service;
162
163
164 error = ft_face_get_mm_service( face, &service );
165 if ( !error )
166 {
167 error = FT_Err_Invalid_Argument;
168 if ( service->set_mm_blend )
169 error = service->set_mm_blend( face, num_coords, coords );
170 }
171
172 return error;
173 }
174
175
176 /* documentation is in ftmm.h */
177
178 /* This is exactly the same as the previous function. It exists for */
179 /* orthogonality. */
180
181 FT_EXPORT_DEF( FT_Error )
182 FT_Set_Var_Blend_Coordinates( FT_Face face,
183 FT_UInt num_coords,
184 FT_Fixed* coords )
185 {
186 FT_Error error;
187 FT_Service_MultiMasters service;
188
189
190 error = ft_face_get_mm_service( face, &service );
191 if ( !error )
192 {
193 error = FT_Err_Invalid_Argument;
194 if ( service->set_mm_blend )
195 error = service->set_mm_blend( face, num_coords, coords );
196 }
197
198 return error;
199 }
200
201
202 /* END */