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      1 /***************************************************************************/
      2 /*                                                                         */
      3 /*  rastpic.c                                                              */
      4 /*                                                                         */
      5 /*    The FreeType position independent code services for raster module.   */
      6 /*                                                                         */
      7 /*  Copyright 2009-2015 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     /* since this function also serves raster5 renderer, */
     63     /* it implements reference counting                  */
     64     if ( pic_container->raster )
     65     {
     66       ((RasterPIC*)pic_container->raster)->ref_count++;
     67       return error;
     68     }
     69 
     70     /* allocate pointer, clear and set global container pointer */
     71     if ( FT_ALLOC( container, sizeof ( *container ) ) )
     72       return error;
     73     FT_MEM_SET( container, 0, sizeof ( *container ) );
     74     pic_container->raster = container;
     75 
     76     container->ref_count = 1;
     77 
     78     /* initialize pointer table -                       */
     79     /* this is how the module usually expects this data */
     80     FT_Init_Class_ft_standard_raster( &container->ft_standard_raster );
     81 
     82     return error;
     83   }
     84 
     85 
     86   /* re-route these init and free functions to the above functions */
     87   FT_Error
     88   ft_raster5_renderer_class_pic_init( FT_Library  library )
     89   {
     90     return ft_raster1_renderer_class_pic_init( library );
     91   }
     92 
     93 
     94   void
     95   ft_raster5_renderer_class_pic_free( FT_Library  library )
     96   {
     97     ft_raster1_renderer_class_pic_free( library );
     98   }
     99 
    100 #endif /* FT_CONFIG_OPTION_PIC */
    101 
    102 
    103 /* END */
    104