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
