1/***************************************************************************/
2/*                                                                         */
3/*  afpic.c                                                                */
4/*                                                                         */
5/*    The FreeType position independent code services for autofit module.  */
6/*                                                                         */
7/*  Copyright 2009-2014 by                                                 */
8/*  Oran Agra and Mickey Gabel.                                            */
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_FREETYPE_H
21#include FT_INTERNAL_OBJECTS_H
22#include "afpic.h"
23#include "afglobal.h"
24#include "aferrors.h"
25
26
27#ifdef FT_CONFIG_OPTION_PIC
28
29  /* forward declaration of PIC init functions from afmodule.c */
30  FT_Error
31  FT_Create_Class_af_services( FT_Library           library,
32                               FT_ServiceDescRec**  output_class );
33
34  void
35  FT_Destroy_Class_af_services( FT_Library          library,
36                                FT_ServiceDescRec*  clazz );
37
38  void
39  FT_Init_Class_af_service_properties( FT_Service_PropertiesRec*  clazz );
40
41  void FT_Init_Class_af_autofitter_interface(
42    FT_Library                   library,
43    FT_AutoHinter_InterfaceRec*  clazz );
44
45
46  /* forward declaration of PIC init functions from writing system classes */
47#undef  WRITING_SYSTEM
48#define WRITING_SYSTEM( ws, WS )  /* empty */
49
50#include "afwrtsys.h"
51
52
53  void
54  autofit_module_class_pic_free( FT_Library  library )
55  {
56    FT_PIC_Container*  pic_container = &library->pic_container;
57    FT_Memory          memory        = library->memory;
58
59
60    if ( pic_container->autofit )
61    {
62      AFModulePIC*  container = (AFModulePIC*)pic_container->autofit;
63
64
65      if ( container->af_services )
66        FT_Destroy_Class_af_services( library,
67                                      container->af_services );
68      container->af_services = NULL;
69
70      FT_FREE( container );
71      pic_container->autofit = NULL;
72    }
73  }
74
75
76  FT_Error
77  autofit_module_class_pic_init( FT_Library  library )
78  {
79    FT_PIC_Container*  pic_container = &library->pic_container;
80    FT_UInt            ss;
81    FT_Error           error         = FT_Err_Ok;
82    AFModulePIC*       container     = NULL;
83    FT_Memory          memory        = library->memory;
84
85
86    /* allocate pointer, clear and set global container pointer */
87    if ( FT_ALLOC ( container, sizeof ( *container ) ) )
88      return error;
89    FT_MEM_SET( container, 0, sizeof ( *container ) );
90    pic_container->autofit = container;
91
92    /* initialize pointer table -                       */
93    /* this is how the module usually expects this data */
94    error = FT_Create_Class_af_services( library,
95                                         &container->af_services );
96    if ( error )
97      goto Exit;
98
99    FT_Init_Class_af_service_properties( &container->af_service_properties );
100
101    for ( ss = 0; ss < AF_WRITING_SYSTEM_MAX; ss++ )
102      container->af_writing_system_classes[ss] =
103        &container->af_writing_system_classes_rec[ss];
104    container->af_writing_system_classes[AF_WRITING_SYSTEM_MAX] = NULL;
105
106    for ( ss = 0; ss < AF_SCRIPT_MAX; ss++ )
107      container->af_script_classes[ss] =
108        &container->af_script_classes_rec[ss];
109    container->af_script_classes[AF_SCRIPT_MAX] = NULL;
110
111    for ( ss = 0; ss < AF_STYLE_MAX; ss++ )
112      container->af_style_classes[ss] =
113        &container->af_style_classes_rec[ss];
114    container->af_style_classes[AF_STYLE_MAX] = NULL;
115
116#undef  WRITING_SYSTEM
117#define WRITING_SYSTEM( ws, WS )                             \
118        FT_Init_Class_af_ ## ws ## _writing_system_class(    \
119          &container->af_writing_system_classes_rec[ss++] );
120
121    ss = 0;
122#include "afwrtsys.h"
123
124#undef  SCRIPT
125#define SCRIPT( s, S, d, h, sc1, sc2, sc3 )          \
126        FT_Init_Class_af_ ## s ## _script_class(     \
127          &container->af_script_classes_rec[ss++] );
128
129    ss = 0;
130#include "afscript.h"
131
132#undef  STYLE
133#define STYLE( s, S, d, ws, sc, bss, c )            \
134        FT_Init_Class_af_ ## s ## _style_class(     \
135          &container->af_style_classes_rec[ss++] );
136
137    ss = 0;
138#include "afstyles.h"
139
140    FT_Init_Class_af_autofitter_interface(
141      library, &container->af_autofitter_interface );
142
143  Exit:
144    if ( error )
145      autofit_module_class_pic_free( library );
146    return error;
147  }
148
149#endif /* FT_CONFIG_OPTION_PIC */
150
151
152/* END */
153