1/***************************************************************************/
2/*                                                                         */
3/*  rastpic.c                                                              */
4/*                                                                         */
5/*    The FreeType position independent code services for raster module.   */
6/*                                                                         */
7/*  Copyright 2009-2017 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 "rastpic.h"
23#include "rasterrs.h"
24
25
26#ifdef FT_CONFIG_OPTION_PIC
27
28  /* forward declaration of PIC init functions from ftraster.c */
29  void
30  FT_Init_Class_ft_standard_raster( FT_Raster_Funcs*  funcs );
31
32
33  void
34  ft_raster1_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->raster )
41    {
42      RasterPIC*  container = (RasterPIC*)pic_container->raster;
43
44
45      if ( --container->ref_count )
46        return;
47      FT_FREE( container );
48      pic_container->raster = NULL;
49    }
50  }
51
52
53  FT_Error
54  ft_raster1_renderer_class_pic_init( FT_Library  library )
55  {
56    FT_PIC_Container*  pic_container = &library->pic_container;
57    FT_Error           error         = FT_Err_Ok;
58    RasterPIC*         container     = NULL;
59    FT_Memory          memory        = library->memory;
60
61
62    /* XXX: since this function also served the no longer available  */
63    /*      raster5 renderer it uses reference counting, which could */
64    /*      be removed now                                           */
65    if ( pic_container->raster )
66    {
67      ((RasterPIC*)pic_container->raster)->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->raster = 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_standard_raster( &container->ft_standard_raster );
82
83    return error;
84  }
85
86#endif /* FT_CONFIG_OPTION_PIC */
87
88
89/* END */
90