ReactOS  0.4.14-dev-297-g23e575c
pfrdrivr.c
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1 /***************************************************************************/
2 /* */
3 /* pfrdrivr.c */
4 /* */
5 /* FreeType PFR driver interface (body). */
6 /* */
7 /* Copyright 2002-2018 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_INTERNAL_DEBUG_H
21 #include FT_INTERNAL_STREAM_H
22 #include FT_SERVICE_PFR_H
23 #include FT_SERVICE_FONT_FORMAT_H
24 #include "pfrdrivr.h"
25 #include "pfrobjs.h"
26 
27 #include "pfrerror.h"
28 
29 
31  pfr_get_kerning( FT_Face pfrface, /* PFR_Face */
32  FT_UInt left,
33  FT_UInt right,
34  FT_Vector *avector )
35  {
36  PFR_Face face = (PFR_Face)pfrface;
37  PFR_PhyFont phys = &face->phy_font;
38 
39 
40  (void)pfr_face_get_kerning( pfrface, left, right, avector );
41 
42  /* convert from metrics to outline units when necessary */
43  if ( phys->outline_resolution != phys->metrics_resolution )
44  {
45  if ( avector->x != 0 )
46  avector->x = FT_MulDiv( avector->x,
48  (FT_Long)phys->metrics_resolution );
49 
50  if ( avector->y != 0 )
51  avector->y = FT_MulDiv( avector->y,
53  (FT_Long)phys->metrics_resolution );
54  }
55 
56  return FT_Err_Ok;
57  }
58 
59 
60  /*
61  * PFR METRICS SERVICE
62  *
63  */
64 
66  pfr_get_advance( FT_Face pfrface, /* PFR_Face */
67  FT_UInt gindex,
68  FT_Pos *anadvance )
69  {
70  PFR_Face face = (PFR_Face)pfrface;
71  FT_Error error = FT_ERR( Invalid_Argument );
72 
73 
74  *anadvance = 0;
75 
76  if ( !gindex )
77  goto Exit;
78 
79  gindex--;
80 
81  if ( face )
82  {
83  PFR_PhyFont phys = &face->phy_font;
84 
85 
86  if ( gindex < phys->num_chars )
87  {
88  *anadvance = phys->chars[gindex].advance;
89  error = FT_Err_Ok;
90  }
91  }
92 
93  Exit:
94  return error;
95  }
96 
97 
99  pfr_get_metrics( FT_Face pfrface, /* PFR_Face */
100  FT_UInt *anoutline_resolution,
101  FT_UInt *ametrics_resolution,
102  FT_Fixed *ametrics_x_scale,
103  FT_Fixed *ametrics_y_scale )
104  {
105  PFR_Face face = (PFR_Face)pfrface;
106  PFR_PhyFont phys = &face->phy_font;
107  FT_Fixed x_scale, y_scale;
108  FT_Size size = face->root.size;
109 
110 
111  if ( anoutline_resolution )
112  *anoutline_resolution = phys->outline_resolution;
113 
114  if ( ametrics_resolution )
115  *ametrics_resolution = phys->metrics_resolution;
116 
117  x_scale = 0x10000L;
118  y_scale = 0x10000L;
119 
120  if ( size )
121  {
122  x_scale = FT_DivFix( size->metrics.x_ppem << 6,
123  (FT_Long)phys->metrics_resolution );
124 
125  y_scale = FT_DivFix( size->metrics.y_ppem << 6,
126  (FT_Long)phys->metrics_resolution );
127  }
128 
129  if ( ametrics_x_scale )
130  *ametrics_x_scale = x_scale;
131 
132  if ( ametrics_y_scale )
133  *ametrics_y_scale = y_scale;
134 
135  return FT_Err_Ok;
136  }
137 
138 
139  static
140  const FT_Service_PfrMetricsRec pfr_metrics_service_rec =
141  {
142  pfr_get_metrics, /* get_metrics */
143  pfr_face_get_kerning, /* get_kerning */
144  pfr_get_advance /* get_advance */
145  };
146 
147 
148  /*
149  * SERVICE LIST
150  *
151  */
152 
154  {
157  { NULL, NULL }
158  };
159 
160 
163  const FT_String* service_id )
164  {
165  FT_UNUSED( module );
166 
167  return ft_service_list_lookup( pfr_services, service_id );
168  }
169 
170 
173  {
174  {
177 
178  sizeof ( FT_DriverRec ),
179 
180  "pfr",
181  0x10000L,
182  0x20000L,
183 
184  NULL, /* module-specific interface */
185 
186  NULL, /* FT_Module_Constructor module_init */
187  NULL, /* FT_Module_Destructor module_done */
188  pfr_get_service /* FT_Module_Requester get_interface */
189  },
190 
191  sizeof ( PFR_FaceRec ),
192  sizeof ( PFR_SizeRec ),
193  sizeof ( PFR_SlotRec ),
194 
195  pfr_face_init, /* FT_Face_InitFunc init_face */
196  pfr_face_done, /* FT_Face_DoneFunc done_face */
197  NULL, /* FT_Size_InitFunc init_size */
198  NULL, /* FT_Size_DoneFunc done_size */
199  pfr_slot_init, /* FT_Slot_InitFunc init_slot */
200  pfr_slot_done, /* FT_Slot_DoneFunc done_slot */
201 
202  pfr_slot_load, /* FT_Slot_LoadFunc load_glyph */
203 
204  pfr_get_kerning, /* FT_Face_GetKerningFunc get_kerning */
205  NULL, /* FT_Face_AttachFunc attach_file */
206  NULL, /* FT_Face_GetAdvancesFunc get_advances */
207 
208  NULL, /* FT_Size_RequestFunc request_size */
209  NULL, /* FT_Size_SelectFunc select_size */
210  };
211 
212 
213 /* END */
ft_service_list_lookup(FT_ServiceDesc service_descriptors, const char *service_id)
Definition: ftobjs.c:98
int FT_Error
Definition: fttypes.h:300
pfr_get_advance(FT_Face pfrface, FT_UInt gindex, FT_Pos *anadvance)
Definition: pfrdrivr.c:66
FT_DivFix(FT_Long a, FT_Long b)
Definition: ftcalc.c:608
signed long FT_Long
Definition: fttypes.h:242
#define FT_FONT_FORMAT_PFR
Definition: svfntfmt.h:43
FT_BEGIN_HEADER typedef signed long FT_Pos
Definition: ftimage.h:58
struct png_info_def **typedef void(__cdecl typeof(png_destroy_read_struct))(struct png_struct_def **
Definition: typeof.h:49
pfr_face_get_kerning(FT_Face pfrface, FT_UInt glyph1, FT_UInt glyph2, FT_Vector *kerning)
Definition: pfrobjs.c:471
static const FT_ServiceDescRec pfr_services[]
Definition: pfrdrivr.c:153
#define error(str)
Definition: mkdosfs.c:1605
FT_UInt outline_resolution
Definition: pfrtypes.h:211
pfr_slot_init(FT_GlyphSlot pfrslot)
Definition: pfrobjs.c:288
#define FT_SERVICE_ID_FONT_FORMAT
Definition: svfntfmt.h:34
pfr_slot_load(FT_GlyphSlot pfrslot, FT_Size pfrsize, FT_UInt gindex, FT_Int32 load_flags)
Definition: pfrobjs.c:311
pfr_face_init(FT_Stream stream, FT_Face pfrface, FT_Int face_index, FT_Int num_params, FT_Parameter *params)
Definition: pfrobjs.c:68
#define FT_MODULE_DRIVER_SCALABLE
Definition: ftmodapi.h:115
return FT_Err_Ok
Definition: ftbbox.c:511
pfr_face_done(FT_Face pfrface)
Definition: pfrobjs.c:44
struct PFR_SlotRec_ PFR_SlotRec
pfr_get_metrics(FT_Face pfrface, FT_UInt *anoutline_resolution, FT_UInt *ametrics_resolution, FT_Fixed *ametrics_x_scale, FT_Fixed *ametrics_y_scale)
Definition: pfrdrivr.c:99
smooth NULL
Definition: ftsmooth.c:416
pfr_get_kerning(FT_Face pfrface, FT_UInt left, FT_UInt right, FT_Vector *avector)
Definition: pfrdrivr.c:31
FT_MulDiv(FT_Long a, FT_Long b, FT_Long c)
Definition: ftcalc.c:416
#define FT_ERR(e)
Definition: fttypes.h:586
#define FT_SERVICE_ID_PFR_METRICS
Definition: svpfr.h:29
FT_UInt metrics_resolution
Definition: pfrtypes.h:212
char FT_String
Definition: fttypes.h:187
GLsizeiptr size
Definition: glext.h:5919
static void Exit(void)
Definition: sock.c:1331
FT_Int advance
Definition: pfrtypes.h:158
GLint left
Definition: glext.h:7726
struct PFR_FaceRec_ PFR_FaceRec
GLdouble GLdouble right
Definition: glext.h:10859
pfr_get_service(FT_Module module, const FT_String *service_id)
Definition: pfrdrivr.c:162
#define FT_CALLBACK_DEF(x)
Definition: ftconfig.h:533
#define FT_MODULE_FONT_DRIVER
Definition: ftmodapi.h:110
static const WCHAR L[]
Definition: oid.c:1250
pfr_slot_done(FT_GlyphSlot pfrslot)
Definition: pfrobjs.c:301
signed long FT_Fixed
Definition: fttypes.h:288
FT_CALLBACK_TABLE_DEF const FT_Driver_ClassRec pfr_driver_class
Definition: pfrdrivr.c:172
unsigned int FT_UInt
Definition: fttypes.h:231
typedefFT_BEGIN_HEADER struct PFR_FaceRec_ * PFR_Face
Definition: pfrobjs.h:27
#define const
Definition: zconf.h:230
struct FT_DriverRec_ FT_DriverRec
static const FT_Service_PfrMetricsRec pfr_metrics_service_rec
Definition: pfrdrivr.c:140
#define FT_UNUSED(arg)
Definition: ftconfig.h:101
GLenum GLuint GLint GLenum face
Definition: glext.h:7025
#define FT_CALLBACK_TABLE_DEF
Definition: ftconfig.h:553
PFR_Char chars
Definition: pfrtypes.h:239