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| Rev | Author | Line No. | Line |
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| 4973 | right-hear | 1 | /******************************************************************* |
| 2 | * |
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| 3 | * ttload.h 1.1 |
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| 4 | * |
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| 5 | * TrueType Tables Loader. |
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| 6 | * |
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| 7 | * Copyright 1996-1999 by |
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| 8 | * David Turner, Robert Wilhelm, and Werner Lemberg. |
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| 9 | * |
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| 10 | * This file is part of the FreeType project, and may only be used |
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| 11 | * modified and distributed under the terms of the FreeType project |
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| 12 | * license, LICENSE.TXT. By continuing to use, modify, or distribute |
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| 13 | * this file you indicate that you have read the license and |
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| 14 | * understand and accept it fully. |
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| 15 | * |
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| 16 | * |
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| 17 | * Changes between 1.1 and 1.0 : |
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| 18 | * |
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| 19 | * - add function Load_TrueType_Any used by TT_Get_Font_Data |
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| 20 | * |
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| 21 | ******************************************************************/ |
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| 22 | |||
| 23 | #ifndef TTLOAD_H |
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| 24 | #define TTLOAD_H |
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| 25 | |||
| 26 | #include "ttconfig.h" |
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| 27 | #include "tttypes.h" |
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| 28 | #include "ttobjs.h" |
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| 29 | |||
| 30 | #ifdef __cplusplus |
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| 31 | extern "C" { |
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| 32 | #endif |
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| 33 | |||
| 34 | EXPORT_DEF |
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| 35 | Long TT_LookUp_Table( PFace face, ULong tag ); |
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| 36 | |||
| 37 | LOCAL_DEF TT_Error Load_TrueType_Directory ( PFace face, |
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| 38 | ULong faceIndex ); |
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| 39 | |||
| 40 | LOCAL_DEF TT_Error Load_TrueType_MaxProfile ( PFace face ); |
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| 41 | LOCAL_DEF TT_Error Load_TrueType_Gasp ( PFace face ); |
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| 42 | LOCAL_DEF TT_Error Load_TrueType_Header ( PFace face ); |
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| 43 | LOCAL_DEF TT_Error Load_TrueType_Locations ( PFace face ); |
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| 44 | LOCAL_DEF TT_Error Load_TrueType_Names ( PFace face ); |
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| 45 | LOCAL_DEF TT_Error Load_TrueType_CVT ( PFace face ); |
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| 46 | LOCAL_DEF TT_Error Load_TrueType_CMap ( PFace face ); |
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| 47 | LOCAL_DEF TT_Error Load_TrueType_Programs ( PFace face ); |
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| 48 | LOCAL_DEF TT_Error Load_TrueType_OS2 ( PFace face ); |
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| 49 | LOCAL_DEF TT_Error Load_TrueType_PostScript ( PFace face ); |
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| 50 | LOCAL_DEF TT_Error Load_TrueType_Hdmx ( PFace face ); |
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| 51 | |||
| 52 | LOCAL_DEF TT_Error Load_TrueType_Metrics_Header( PFace face, |
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| 53 | Bool vertical ); |
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| 54 | |||
| 55 | LOCAL_DEF TT_Error Load_TrueType_Any( PFace face, |
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| 56 | ULong tag, |
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| 57 | Long offset, |
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| 58 | void* buffer, |
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| 59 | Long* length ); |
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| 60 | |||
| 61 | LOCAL_DEF TT_Error Free_TrueType_Names( PFace face ); |
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| 62 | LOCAL_DEF TT_Error Free_TrueType_Hdmx ( PFace face ); |
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| 63 | |||
| 64 | |||
| 65 | /* The following macros are defined to simplify the writing of */ |
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| 66 | /* the various table and glyph loaders. */ |
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| 67 | |||
| 68 | /* For examples see the code in ttload.c, ttgload.c etc. */ |
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| 69 | |||
| 70 | #define USE_Stream( original, duplicate ) \ |
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| 71 | ( (error = TT_Use_Stream( original, &duplicate )) != TT_Err_Ok ) |
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| 72 | |||
| 73 | #define DONE_Stream( _stream ) \ |
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| 74 | TT_Done_Stream( &_stream ) |
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| 75 | |||
| 76 | /* Define a file frame -- use it only when needed */ |
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| 77 | #define DEFINE_A_FRAME TFileFrame frame = TT_Null_FileFrame |
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| 78 | |||
| 79 | /* Define a stream -- use it only when needed */ |
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| 80 | #define DEFINE_A_STREAM TT_Stream stream |
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| 81 | |||
| 82 | |||
| 83 | #ifdef TT_CONFIG_OPTION_THREAD_SAFE /* re-entrant implementation */ |
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| 84 | |||
| 85 | /* The following macros define the necessary local */ |
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| 86 | /* variables used to access streams and frames. */ |
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| 87 | |||
| 88 | /* Define stream locals with frame */ |
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| 89 | #define DEFINE_STREAM_LOCALS \ |
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| 90 | TT_Error error; \ |
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| 91 | DEFINE_A_STREAM; \ |
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| 92 | DEFINE_A_FRAME |
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| 93 | |||
| 94 | /* Define stream locals without frame */ |
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| 95 | #define DEFINE_STREAM_LOCALS_WO_FRAME \ |
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| 96 | TT_Error error; \ |
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| 97 | DEFINE_A_STREAM |
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| 98 | |||
| 99 | /* Define locals with a predefined stream in reentrant mode -- see ttload.c */ |
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| 100 | #define DEFINE_LOAD_LOCALS( STREAM ) \ |
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| 101 | TT_Error error; \ |
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| 102 | DEFINE_A_STREAM = (STREAM); \ |
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| 103 | DEFINE_A_FRAME |
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| 104 | |||
| 105 | /* Define locals without frame with a predefined stream - see ttload.c */ |
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| 106 | #define DEFINE_LOAD_LOCALS_WO_FRAME( STREAM ) \ |
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| 107 | TT_Error error; \ |
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| 108 | DEFINE_A_STREAM = (STREAM) |
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| 109 | |||
| 110 | /* Define all locals necessary to access a font file */ |
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| 111 | #define DEFINE_ALL_LOCALS \ |
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| 112 | TT_Error error; \ |
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| 113 | DEFINE_A_STREAM; \ |
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| 114 | DEFINE_A_FRAME |
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| 115 | |||
| 116 | |||
| 117 | #define ACCESS_Frame( _size_ ) \ |
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| 118 | ( (error = TT_Access_Frame( stream, \ |
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| 119 | &frame, \ |
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| 120 | (Long)(_size_) )) != TT_Err_Ok ) |
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| 121 | #define CHECK_ACCESS_Frame( _size_ ) \ |
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| 122 | ( (error = TT_Check_And_Access_Frame( stream, \ |
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| 123 | &frame, \ |
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| 124 | (Long)(_size_) )) != TT_Err_Ok ) |
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| 125 | #define FORGET_Frame() \ |
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| 126 | ( (void)TT_Forget_Frame( &frame ) ) |
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| 127 | |||
| 128 | #define GET_Byte() TT_Get_Byte ( &frame ) |
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| 129 | #define GET_Char() TT_Get_Char ( &frame ) |
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| 130 | #define GET_UShort() TT_Get_UShort( &frame ) |
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| 131 | #define GET_Short() TT_Get_Short ( &frame ) |
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| 132 | #define GET_Long() TT_Get_Long ( &frame ) |
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| 133 | #define GET_ULong() TT_Get_ULong ( &frame ) |
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| 134 | #define GET_Tag4() TT_Get_ULong ( &frame ) |
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| 135 | |||
| 136 | #define FILE_Pos() TT_File_Pos ( stream ) |
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| 137 | |||
| 138 | #define FILE_Seek( _position_ ) \ |
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| 139 | ( (error = TT_Seek_File( stream, \ |
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| 140 | (Long)(_position_) )) != TT_Err_Ok ) |
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| 141 | #define FILE_Skip( _distance_ ) \ |
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| 142 | ( (error = TT_Skip_File( stream, \ |
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| 143 | (Long)(_distance_) )) != TT_Err_Ok ) |
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| 144 | #define FILE_Read( buffer, count ) \ |
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| 145 | ( (error = TT_Read_File ( stream, \ |
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| 146 | buffer, \ |
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| 147 | (Long)(count) )) != TT_Err_Ok ) |
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| 148 | #define FILE_Read_At( pos, buffer, count ) \ |
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| 149 | ( (error = TT_Read_At_File( stream, \ |
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| 150 | (Long)(pos), \ |
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| 151 | buffer, \ |
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| 152 | (Long)(count) )) != TT_Err_Ok ) |
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| 153 | |||
| 154 | #else /* thread-safe implementation */ |
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| 155 | |||
| 156 | /* Define stream locals with frame -- nothing in thread-safe mode */ |
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| 157 | #define DEFINE_STREAM_LOCALS \ |
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| 158 | TT_Error error |
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| 159 | |||
| 160 | /* Define stream locals without frame -- nothing in thread-safe mode */ |
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| 161 | #define DEFINE_STREAM_LOCALS_WO_FRAME \ |
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| 162 | TT_Error error |
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| 163 | |||
| 164 | /* Define locals with a predefined stream in reentrant mode -- see ttload.c */ |
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| 165 | #define DEFINE_LOAD_LOCALS( STREAM ) \ |
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| 166 | TT_Error error |
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| 167 | |||
| 168 | |||
| 169 | /* Define locals without frame with a predefined stream - see ttload.c */ |
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| 170 | #define DEFINE_LOAD_LOCALS_WO_FRAME( STREAM ) \ |
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| 171 | TT_Error error |
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| 172 | |||
| 173 | /* Define all locals necessary to access a font file */ |
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| 174 | #define DEFINE_ALL_LOCALS \ |
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| 175 | TT_Error error; \ |
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| 176 | DEFINE_A_STREAM |
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| 177 | |||
| 178 | |||
| 179 | #define ACCESS_Frame( _size_ ) \ |
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| 180 | ( (error = TT_Access_Frame( (Long)(_size_) )) != TT_Err_Ok ) |
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| 181 | #define CHECK_ACCESS_Frame( _size_ ) \ |
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| 182 | ( (error = TT_Check_And_Access_Frame( (Long)(_size_) )) != TT_Err_Ok ) |
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| 183 | #define FORGET_Frame() \ |
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| 184 | ( (void)TT_Forget_Frame() ) |
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| 185 | |||
| 186 | #define GET_Byte() TT_Get_Byte () |
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| 187 | #define GET_Char() TT_Get_Char () |
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| 188 | #define GET_UShort() TT_Get_UShort() |
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| 189 | #define GET_Short() TT_Get_Short () |
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| 190 | #define GET_Long() TT_Get_Long () |
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| 191 | #define GET_ULong() TT_Get_ULong () |
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| 192 | #define GET_Tag4() TT_Get_ULong () |
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| 193 | |||
| 194 | #define FILE_Pos() TT_File_Pos() |
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| 195 | |||
| 196 | #define FILE_Seek( _position_ ) \ |
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| 197 | ( (error = TT_Seek_File( (Long)(_position_) )) != TT_Err_Ok ) |
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| 198 | #define FILE_Skip( _distance_ ) \ |
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| 199 | ( (error = TT_Skip_File( (Long)(_distance_) )) != TT_Err_Ok ) |
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| 200 | #define FILE_Read( buffer, count ) \ |
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| 201 | ( (error = TT_Read_File ( buffer, \ |
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| 202 | (Long)(count) )) != TT_Err_Ok ) |
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| 203 | #define FILE_Read_At( pos, buffer, count ) \ |
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| 204 | ( (error = TT_Read_At_File( (Long)(pos), \ |
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| 205 | buffer, \ |
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| 206 | (Long)(count) )) != TT_Err_Ok ) |
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| 207 | |||
| 208 | #endif /* TT_CONFIG_OPTION_THREAD_SAFE */ |
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| 209 | |||
| 210 | #ifdef __cplusplus |
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| 211 | } |
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| 212 | #endif |
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| 213 | |||
| 214 | #endif /* TTLOAD_H */ |
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| 215 | |||
| 216 | |||
| 217 | /* END */ |