1 /***************************************************************************/ 2 /* */ 3 /* rastpic.c */ 4 /* */ 5 /* The FreeType position independent code services for raster module. */ 6 /* */ 7 /* Copyright 2009, 2010 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 24 #ifdef FT_CONFIG_OPTION_PIC 25 26 /* forward declaration of PIC init functions from ftraster.c */ 27 void FT_Init_Class_ft_standard_raster(FT_Raster_Funcs*); 28 29 void ft_raster1_renderer_class_pic_free(FT_Library library)30 ft_raster1_renderer_class_pic_free( FT_Library library ) 31 { 32 FT_PIC_Container* pic_container = &library->pic_container; 33 FT_Memory memory = library->memory; 34 if ( pic_container->raster ) 35 { 36 RasterPIC* container = (RasterPIC*)pic_container->raster; 37 if(--container->ref_count) 38 return; 39 FT_FREE( container ); 40 pic_container->raster = NULL; 41 } 42 } 43 44 45 FT_Error ft_raster1_renderer_class_pic_init(FT_Library library)46 ft_raster1_renderer_class_pic_init( FT_Library library ) 47 { 48 FT_PIC_Container* pic_container = &library->pic_container; 49 FT_Error error = Raster_Err_Ok; 50 RasterPIC* container; 51 FT_Memory memory = library->memory; 52 53 54 /* since this function also serve raster5 renderer, 55 it implements reference counting */ 56 if ( pic_container->raster ) 57 { 58 ((RasterPIC*)pic_container->raster)->ref_count++; 59 return error; 60 } 61 62 /* allocate pointer, clear and set global container pointer */ 63 if ( FT_ALLOC ( container, sizeof ( *container ) ) ) 64 return error; 65 FT_MEM_SET( container, 0, sizeof(*container) ); 66 pic_container->raster = container; 67 container->ref_count = 1; 68 69 /* initialize pointer table - this is how the module usually expects this data */ 70 FT_Init_Class_ft_standard_raster(&container->ft_standard_raster); 71 /*Exit:*/ 72 if(error) 73 ft_raster1_renderer_class_pic_free(library); 74 return error; 75 } 76 77 /* re-route these init and free functions to the above functions */ ft_raster5_renderer_class_pic_init(FT_Library library)78 FT_Error ft_raster5_renderer_class_pic_init(FT_Library library) 79 { 80 return ft_raster1_renderer_class_pic_init(library); 81 } ft_raster5_renderer_class_pic_free(FT_Library library)82 void ft_raster5_renderer_class_pic_free(FT_Library library) 83 { 84 ft_raster1_renderer_class_pic_free(library); 85 } 86 87 #endif /* FT_CONFIG_OPTION_PIC */ 88 89 90 /* END */ 91