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ftmoderr.h
1/***************************************************************************/
2/* */
3/* ftmoderr.h */
4/* */
5/* FreeType module error offsets (specification). */
6/* */
7/* Copyright 2001-2016 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 /*************************************************************************/
20 /* */
21 /* This file is used to define the FreeType module error codes. */
22 /* */
23 /* If the macro FT_CONFIG_OPTION_USE_MODULE_ERRORS in `ftoption.h' is */
24 /* set, the lower byte of an error value identifies the error code as */
25 /* usual. In addition, the higher byte identifies the module. For */
26 /* example, the error `FT_Err_Invalid_File_Format' has value 0x0003, the */
27 /* error `TT_Err_Invalid_File_Format' has value 0x1303, the error */
28 /* `T1_Err_Invalid_File_Format' has value 0x1403, etc. */
29 /* */
30 /* Note that `FT_Err_Ok', `TT_Err_Ok', etc. are always equal to zero, */
31 /* including the high byte. */
32 /* */
33 /* If FT_CONFIG_OPTION_USE_MODULE_ERRORS isn't set, the higher byte of */
34 /* an error value is set to zero. */
35 /* */
36 /* To hide the various `XXX_Err_' prefixes in the source code, FreeType */
37 /* provides some macros in `fttypes.h'. */
38 /* */
39 /* FT_ERR( err ) */
40 /* Add current error module prefix (as defined with the */
41 /* `FT_ERR_PREFIX' macro) to `err'. For example, in the BDF module */
42 /* the line */
43 /* */
44 /* error = FT_ERR( Invalid_Outline ); */
45 /* */
46 /* expands to */
47 /* */
48 /* error = BDF_Err_Invalid_Outline; */
49 /* */
50 /* For simplicity, you can always use `FT_Err_Ok' directly instead */
51 /* of `FT_ERR( Ok )'. */
52 /* */
53 /* FT_ERR_EQ( errcode, err ) */
54 /* FT_ERR_NEQ( errcode, err ) */
55 /* Compare error code `errcode' with the error `err' for equality */
56 /* and inequality, respectively. Example: */
57 /* */
58 /* if ( FT_ERR_EQ( error, Invalid_Outline ) ) */
59 /* ... */
60 /* */
61 /* Using this macro you don't have to think about error prefixes. */
62 /* Of course, if module errors are not active, the above example is */
63 /* the same as */
64 /* */
65 /* if ( error == FT_Err_Invalid_Outline ) */
66 /* ... */
67 /* */
68 /* FT_ERROR_BASE( errcode ) */
69 /* FT_ERROR_MODULE( errcode ) */
70 /* Get base error and module error code, respectively. */
71 /* */
72 /* */
73 /* It can also be used to create a module error message table easily */
74 /* with something like */
75 /* */
76 /* { */
77 /* #undef FTMODERR_H_ */
78 /* #define FT_MODERRDEF( e, v, s ) { FT_Mod_Err_ ## e, s }, */
79 /* #define FT_MODERR_START_LIST { */
80 /* #define FT_MODERR_END_LIST { 0, 0 } }; */
81 /* */
82 /* const struct */
83 /* { */
84 /* int mod_err_offset; */
85 /* const char* mod_err_msg */
86 /* } ft_mod_errors[] = */
87 /* */
88 /* #include FT_MODULE_ERRORS_H */
89 /* } */
90 /* */
91 /*************************************************************************/
92
93
94#ifndef FTMODERR_H_
95#define FTMODERR_H_
96
97
98 /*******************************************************************/
99 /*******************************************************************/
100 /***** *****/
101 /***** SETUP MACROS *****/
102 /***** *****/
103 /*******************************************************************/
104 /*******************************************************************/
105
106
107#undef FT_NEED_EXTERN_C
108
109#ifndef FT_MODERRDEF
110
111#ifdef FT_CONFIG_OPTION_USE_MODULE_ERRORS
112#define FT_MODERRDEF( e, v, s ) FT_Mod_Err_ ## e = v,
113#else
114#define FT_MODERRDEF( e, v, s ) FT_Mod_Err_ ## e = 0,
115#endif
116
117#define FT_MODERR_START_LIST enum {
118#define FT_MODERR_END_LIST FT_Mod_Err_Max };
119
120#ifdef __cplusplus
121#define FT_NEED_EXTERN_C
122 extern "C" {
123#endif
124
125#endif /* !FT_MODERRDEF */
126
127
128 /*******************************************************************/
129 /*******************************************************************/
130 /***** *****/
131 /***** LIST MODULE ERROR BASES *****/
132 /***** *****/
133 /*******************************************************************/
134 /*******************************************************************/
135
136
137#ifdef FT_MODERR_START_LIST
138 FT_MODERR_START_LIST
139#endif
140
141
142 FT_MODERRDEF( Base, 0x000, "base module" )
143 FT_MODERRDEF( Autofit, 0x100, "autofitter module" )
144 FT_MODERRDEF( BDF, 0x200, "BDF module" )
145 FT_MODERRDEF( Bzip2, 0x300, "Bzip2 module" )
146 FT_MODERRDEF( Cache, 0x400, "cache module" )
147 FT_MODERRDEF( CFF, 0x500, "CFF module" )
148 FT_MODERRDEF( CID, 0x600, "CID module" )
149 FT_MODERRDEF( Gzip, 0x700, "Gzip module" )
150 FT_MODERRDEF( LZW, 0x800, "LZW module" )
151 FT_MODERRDEF( OTvalid, 0x900, "OpenType validation module" )
152 FT_MODERRDEF( PCF, 0xA00, "PCF module" )
153 FT_MODERRDEF( PFR, 0xB00, "PFR module" )
154 FT_MODERRDEF( PSaux, 0xC00, "PS auxiliary module" )
155 FT_MODERRDEF( PShinter, 0xD00, "PS hinter module" )
156 FT_MODERRDEF( PSnames, 0xE00, "PS names module" )
157 FT_MODERRDEF( Raster, 0xF00, "raster module" )
158 FT_MODERRDEF( SFNT, 0x1000, "SFNT module" )
159 FT_MODERRDEF( Smooth, 0x1100, "smooth raster module" )
160 FT_MODERRDEF( TrueType, 0x1200, "TrueType module" )
161 FT_MODERRDEF( Type1, 0x1300, "Type 1 module" )
162 FT_MODERRDEF( Type42, 0x1400, "Type 42 module" )
163 FT_MODERRDEF( Winfonts, 0x1500, "Windows FON/FNT module" )
164 FT_MODERRDEF( GXvalid, 0x1600, "GX validation module" )
165
166
167#ifdef FT_MODERR_END_LIST
168 FT_MODERR_END_LIST
169#endif
170
171
172 /*******************************************************************/
173 /*******************************************************************/
174 /***** *****/
175 /***** CLEANUP *****/
176 /***** *****/
177 /*******************************************************************/
178 /*******************************************************************/
179
180
181#ifdef FT_NEED_EXTERN_C
182 }
183#endif
184
185#undef FT_MODERR_START_LIST
186#undef FT_MODERR_END_LIST
187#undef FT_MODERRDEF
188#undef FT_NEED_EXTERN_C
189
190
191#endif /* FTMODERR_H_ */
192
193
194/* END */
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