1/***************************************************************************/
2/* */
3/* ftspic.c */
4/* */
5/* The FreeType position independent code services for smooth module. */
6/* */
7/* Copyright 2009-2018 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 "ftspic.h"
23#include "ftsmerrs.h"
24
25
26#ifdef FT_CONFIG_OPTION_PIC
27
28 /* forward declaration of PIC init functions from ftgrays.c */
29 void
30 FT_Init_Class_ft_grays_raster( FT_Raster_Funcs* funcs );
31
32
33 void
34 ft_smooth_renderer_class_pic_free( FT_Library library )
35 {
36 FT_PIC_Container* pic_container = &library->pic_container;
37 FT_Memory memory = library->memory;
38
39
40 if ( pic_container->smooth )
41 {
42 SmoothPIC* container = (SmoothPIC*)pic_container->smooth;
43
44
45 if ( --container->ref_count )
46 return;
47
48 FT_FREE( container );
49 pic_container->smooth = NULL;
50 }
51 }
52
53
54 FT_Error
55 ft_smooth_renderer_class_pic_init( FT_Library library )
56 {
57 FT_PIC_Container* pic_container = &library->pic_container;
58 FT_Error error = FT_Err_Ok;
59 SmoothPIC* container = NULL;
60 FT_Memory memory = library->memory;
61
62
63 /* since this function also serve smooth_lcd and smooth_lcdv renderers,
64 it implements reference counting */
65 if ( pic_container->smooth )
66 {
67 ((SmoothPIC*)pic_container->smooth)->ref_count++;
68 return error;
69 }
70
71 /* allocate pointer, clear and set global container pointer */
72 if ( FT_ALLOC( container, sizeof ( *container ) ) )
73 return error;
74 FT_MEM_SET( container, 0, sizeof ( *container ) );
75 pic_container->smooth = container;
76
77 container->ref_count = 1;
78
79 /* initialize pointer table - */
80 /* this is how the module usually expects this data */
81 FT_Init_Class_ft_grays_raster( &container->ft_grays_raster );
82
83 return error;
84 }
85
86
87 /* re-route these init and free functions to the above functions */
88 FT_Error
89 ft_smooth_lcd_renderer_class_pic_init( FT_Library library )
90 {
91 return ft_smooth_renderer_class_pic_init( library );
92 }
93
94
95 void
96 ft_smooth_lcd_renderer_class_pic_free( FT_Library library )
97 {
98 ft_smooth_renderer_class_pic_free( library );
99 }
100
101
102 FT_Error
103 ft_smooth_lcdv_renderer_class_pic_init( FT_Library library )
104 {
105 return ft_smooth_renderer_class_pic_init( library );
106 }
107
108
109 void
110 ft_smooth_lcdv_renderer_class_pic_free( FT_Library library )
111 {
112 ft_smooth_renderer_class_pic_free( library );
113 }
114
115#endif /* FT_CONFIG_OPTION_PIC */
116
117
118/* END */
119