XFA: merge patch from CL 815103002
[pdfium.git] / third_party / freetype / src / truetype / ttpic.c
1 /***************************************************************************/
2 /*                                                                         */
3 /*  ttpic.c                                                                */
4 /*                                                                         */
5 /*    The FreeType position independent code services for truetype module. */
6 /*                                                                         */
7 /*  Copyright 2009, 2010, 2012, 2013 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 "ttpic.h"
23 #include "tterrors.h"
24
25
26 #ifdef FT_CONFIG_OPTION_PIC
27
28   /* forward declaration of PIC init functions from ttdriver.c */
29   FT_Error
30   FT_Create_Class_tt_services( FT_Library           library,
31                                FT_ServiceDescRec**  output_class );
32   void
33   FT_Destroy_Class_tt_services( FT_Library          library,
34                                 FT_ServiceDescRec*  clazz );
35   void
36   FT_Init_Class_tt_service_gx_multi_masters(
37     FT_Service_MultiMastersRec*  sv_mm );
38   void
39   FT_Init_Class_tt_service_truetype_glyf(
40     FT_Service_TTGlyfRec*  sv_ttglyf );
41
42
43   void
44   tt_driver_class_pic_free( FT_Library  library )
45   {
46     FT_PIC_Container*  pic_container = &library->pic_container;
47     FT_Memory          memory        = library->memory;
48
49
50     if ( pic_container->truetype )
51     {
52       TTModulePIC*  container = (TTModulePIC*)pic_container->truetype;
53
54
55       if ( container->tt_services )
56         FT_Destroy_Class_tt_services( library, container->tt_services );
57       container->tt_services = NULL;
58       FT_FREE( container );
59       pic_container->truetype = NULL;
60     }
61   }
62
63
64   FT_Error
65   tt_driver_class_pic_init( FT_Library  library )
66   {
67     FT_PIC_Container*  pic_container = &library->pic_container;
68     FT_Error           error         = FT_Err_Ok;
69     TTModulePIC*       container     = NULL;
70     FT_Memory          memory        = library->memory;
71
72
73     /* allocate pointer, clear and set global container pointer */
74     if ( FT_ALLOC( container, sizeof ( *container ) ) )
75       return error;
76     FT_MEM_SET( container, 0, sizeof ( *container ) );
77     pic_container->truetype = container;
78
79     /* initialize pointer table - this is how the module usually */
80     /* expects this data                                         */
81     error = FT_Create_Class_tt_services( library,
82                                          &container->tt_services );
83     if ( error )
84       goto Exit;
85 #ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT
86     FT_Init_Class_tt_service_gx_multi_masters(
87       &container->tt_service_gx_multi_masters );
88 #endif
89     FT_Init_Class_tt_service_truetype_glyf(
90       &container->tt_service_truetype_glyf );
91
92   Exit:
93     if ( error )
94       tt_driver_class_pic_free( library );
95     return error;
96   }
97
98 #endif /* FT_CONFIG_OPTION_PIC */
99
100
101 /* END */