1 /***************************************************************************/
5 /* FreeType PFR driver interface (body). */
7 /* Copyright 2002-2004, 2006, 2008, 2010, 2011 by */
8 /* David Turner, Robert Wilhelm, and Werner Lemberg. */
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. */
16 /***************************************************************************/
20 #include FT_INTERNAL_DEBUG_H
21 #include FT_INTERNAL_STREAM_H
22 #include FT_SERVICE_PFR_H
23 #include FT_SERVICE_XFREE86_NAME_H
30 FT_CALLBACK_DEF( FT_Error )
31 pfr_get_kerning( FT_Face pfrface, /* PFR_Face */
36 PFR_Face face = (PFR_Face)pfrface;
37 PFR_PhyFont phys = &face->phy_font;
40 pfr_face_get_kerning( pfrface, left, right, avector );
42 /* convert from metrics to outline units when necessary */
43 if ( phys->outline_resolution != phys->metrics_resolution )
45 if ( avector->x != 0 )
46 avector->x = FT_MulDiv( avector->x, phys->outline_resolution,
47 phys->metrics_resolution );
49 if ( avector->y != 0 )
50 avector->y = FT_MulDiv( avector->x, phys->outline_resolution,
51 phys->metrics_resolution );
63 FT_CALLBACK_DEF( FT_Error )
64 pfr_get_advance( FT_Face pfrface, /* PFR_Face */
68 PFR_Face face = (PFR_Face)pfrface;
69 FT_Error error = PFR_Err_Invalid_Argument;
81 PFR_PhyFont phys = &face->phy_font;
84 if ( gindex < phys->num_chars )
86 *anadvance = phys->chars[gindex].advance;
96 FT_CALLBACK_DEF( FT_Error )
97 pfr_get_metrics( FT_Face pfrface, /* PFR_Face */
98 FT_UInt *anoutline_resolution,
99 FT_UInt *ametrics_resolution,
100 FT_Fixed *ametrics_x_scale,
101 FT_Fixed *ametrics_y_scale )
103 PFR_Face face = (PFR_Face)pfrface;
104 PFR_PhyFont phys = &face->phy_font;
105 FT_Fixed x_scale, y_scale;
106 FT_Size size = face->root.size;
109 if ( anoutline_resolution )
110 *anoutline_resolution = phys->outline_resolution;
112 if ( ametrics_resolution )
113 *ametrics_resolution = phys->metrics_resolution;
120 x_scale = FT_DivFix( size->metrics.x_ppem << 6,
121 phys->metrics_resolution );
123 y_scale = FT_DivFix( size->metrics.y_ppem << 6,
124 phys->metrics_resolution );
127 if ( ametrics_x_scale )
128 *ametrics_x_scale = x_scale;
130 if ( ametrics_y_scale )
131 *ametrics_y_scale = y_scale;
137 FT_CALLBACK_TABLE_DEF
138 const FT_Service_PfrMetricsRec pfr_metrics_service_rec =
141 pfr_face_get_kerning,
151 static const FT_ServiceDescRec pfr_services[] =
153 { FT_SERVICE_ID_PFR_METRICS, &pfr_metrics_service_rec },
154 { FT_SERVICE_ID_XF86_NAME, FT_XF86_FORMAT_PFR },
159 FT_CALLBACK_DEF( FT_Module_Interface )
160 pfr_get_service( FT_Module module,
161 const FT_String* service_id )
165 return ft_service_list_lookup( pfr_services, service_id );
169 FT_CALLBACK_TABLE_DEF
170 const FT_Driver_ClassRec pfr_driver_class =
173 FT_MODULE_FONT_DRIVER |
174 FT_MODULE_DRIVER_SCALABLE,
176 sizeof ( FT_DriverRec ),
184 0, /* FT_Module_Constructor */
185 0, /* FT_Module_Destructor */
189 sizeof ( PFR_FaceRec ),
190 sizeof ( PFR_SizeRec ),
191 sizeof ( PFR_SlotRec ),
195 0, /* FT_Size_InitFunc */
196 0, /* FT_Size_DoneFunc */
200 #ifdef FT_CONFIG_OPTION_OLD_INTERNALS
201 ft_stub_set_char_sizes,
202 ft_stub_set_pixel_sizes,
207 0, /* FT_Face_AttachFunc */
208 0, /* FT_Face_GetAdvancesFunc */
209 0, /* FT_Size_RequestFunc */
210 0, /* FT_Size_SelectFunc */