1 /**************************************************************************** 2 * 3 * svsfnt.h 4 * 5 * The FreeType SFNT table loading service (specification). 6 * 7 * Copyright (C) 2003-2023 by 8 * David Turner, Robert Wilhelm, and Werner Lemberg. 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 #ifndef SVSFNT_H_ 20 #define SVSFNT_H_ 21 22 #include <freetype/internal/ftserv.h> 23 #include <freetype/tttables.h> 24 25 26 FT_BEGIN_HEADER 27 28 29 /* 30 * SFNT table loading service. 31 */ 32 33 #define FT_SERVICE_ID_SFNT_TABLE "sfnt-table" 34 35 36 /* 37 * Used to implement FT_Load_Sfnt_Table(). 38 */ 39 typedef FT_Error 40 (*FT_SFNT_TableLoadFunc)( FT_Face face, 41 FT_ULong tag, 42 FT_Long offset, 43 FT_Byte* buffer, 44 FT_ULong* length ); 45 46 /* 47 * Used to implement FT_Get_Sfnt_Table(). 48 */ 49 typedef void* 50 (*FT_SFNT_TableGetFunc)( FT_Face face, 51 FT_Sfnt_Tag tag ); 52 53 54 /* 55 * Used to implement FT_Sfnt_Table_Info(). 56 */ 57 typedef FT_Error 58 (*FT_SFNT_TableInfoFunc)( FT_Face face, 59 FT_UInt idx, 60 FT_ULong *tag, 61 FT_ULong *offset, 62 FT_ULong *length ); 63 64 FT_DEFINE_SERVICE(SFNT_Table)65 FT_DEFINE_SERVICE( SFNT_Table ) 66 { 67 FT_SFNT_TableLoadFunc load_table; 68 FT_SFNT_TableGetFunc get_table; 69 FT_SFNT_TableInfoFunc table_info; 70 }; 71 72 73 #define FT_DEFINE_SERVICE_SFNT_TABLEREC( class_, load_, get_, info_ ) \ 74 static const FT_Service_SFNT_TableRec class_ = \ 75 { \ 76 load_, get_, info_ \ 77 }; 78 79 /* */ 80 81 82 FT_END_HEADER 83 84 85 #endif /* SVSFNT_H_ */ 86 87 88 /* END */ 89