1 /***************************************************************************/ 2 /* */ 3 /* afpic.c */ 4 /* */ 5 /* The FreeType position independent code services for autofit 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 "afpic.h" 23 #include "afglobal.h" 24 #include "aferrors.h" 25 26 27 #ifdef FT_CONFIG_OPTION_PIC 28 29 /* forward declaration of PIC init functions from afmodule.c */ 30 FT_Error 31 FT_Create_Class_af_services( FT_Library library, 32 FT_ServiceDescRec** output_class ); 33 34 void 35 FT_Destroy_Class_af_services( FT_Library library, 36 FT_ServiceDescRec* clazz ); 37 38 void 39 FT_Init_Class_af_service_properties( FT_Service_PropertiesRec* clazz ); 40 41 void FT_Init_Class_af_autofitter_interface( 42 FT_Library library, 43 FT_AutoHinter_InterfaceRec* clazz ); 44 45 46 /* forward declaration of PIC init functions from writing system classes */ 47 #undef WRITING_SYSTEM 48 #define WRITING_SYSTEM( ws, WS ) /* empty */ 49 50 #include "afwrtsys.h" 51 52 53 void autofit_module_class_pic_free(FT_Library library)54 autofit_module_class_pic_free( FT_Library library ) 55 { 56 FT_PIC_Container* pic_container = &library->pic_container; 57 FT_Memory memory = library->memory; 58 59 60 if ( pic_container->autofit ) 61 { 62 AFModulePIC* container = (AFModulePIC*)pic_container->autofit; 63 64 65 if ( container->af_services ) 66 FT_Destroy_Class_af_services( library, 67 container->af_services ); 68 container->af_services = NULL; 69 70 FT_FREE( container ); 71 pic_container->autofit = NULL; 72 } 73 } 74 75 76 FT_Error autofit_module_class_pic_init(FT_Library library)77 autofit_module_class_pic_init( FT_Library library ) 78 { 79 FT_PIC_Container* pic_container = &library->pic_container; 80 FT_UInt ss; 81 FT_Error error = FT_Err_Ok; 82 AFModulePIC* container = NULL; 83 FT_Memory memory = library->memory; 84 85 86 /* allocate pointer, clear and set global container pointer */ 87 if ( FT_ALLOC ( container, sizeof ( *container ) ) ) 88 return error; 89 FT_MEM_SET( container, 0, sizeof ( *container ) ); 90 pic_container->autofit = container; 91 92 /* initialize pointer table - */ 93 /* this is how the module usually expects this data */ 94 error = FT_Create_Class_af_services( library, 95 &container->af_services ); 96 if ( error ) 97 goto Exit; 98 99 FT_Init_Class_af_service_properties( &container->af_service_properties ); 100 101 for ( ss = 0; ss < AF_WRITING_SYSTEM_MAX; ss++ ) 102 container->af_writing_system_classes[ss] = 103 &container->af_writing_system_classes_rec[ss]; 104 container->af_writing_system_classes[AF_WRITING_SYSTEM_MAX] = NULL; 105 106 for ( ss = 0; ss < AF_SCRIPT_MAX; ss++ ) 107 container->af_script_classes[ss] = 108 &container->af_script_classes_rec[ss]; 109 container->af_script_classes[AF_SCRIPT_MAX] = NULL; 110 111 for ( ss = 0; ss < AF_STYLE_MAX; ss++ ) 112 container->af_style_classes[ss] = 113 &container->af_style_classes_rec[ss]; 114 container->af_style_classes[AF_STYLE_MAX] = NULL; 115 116 #undef WRITING_SYSTEM 117 #define WRITING_SYSTEM( ws, WS ) \ 118 FT_Init_Class_af_ ## ws ## _writing_system_class( \ 119 &container->af_writing_system_classes_rec[ss++] ); 120 121 ss = 0; 122 #include "afwrtsys.h" 123 124 #undef SCRIPT 125 #define SCRIPT( s, S, d, h, H, sss ) \ 126 FT_Init_Class_af_ ## s ## _script_class( \ 127 &container->af_script_classes_rec[ss++] ); 128 129 ss = 0; 130 #include "afscript.h" 131 132 #undef STYLE 133 #define STYLE( s, S, d, ws, sc, bss, c ) \ 134 FT_Init_Class_af_ ## s ## _style_class( \ 135 &container->af_style_classes_rec[ss++] ); 136 137 ss = 0; 138 #include "afstyles.h" 139 140 FT_Init_Class_af_autofitter_interface( 141 library, &container->af_autofitter_interface ); 142 143 Exit: 144 if ( error ) 145 autofit_module_class_pic_free( library ); 146 return error; 147 } 148 149 #endif /* FT_CONFIG_OPTION_PIC */ 150 151 152 /* END */ 153