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 ft_raster1_renderer_class_pic_free(FT_Library library)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 ft_raster1_renderer_class_pic_init(FT_Library library)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 ft_raster5_renderer_class_pic_init(FT_Library library)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 ft_raster5_renderer_class_pic_free(FT_Library library)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