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/***************************************************************************/ /* */ /* ftmoderr.h */ /* */ /* FreeType module error offsets (specification). */ /* */ /* Copyright 2001-2018 by */ /* David Turner, Robert Wilhelm, and Werner Lemberg. */ /* */ /* This file is part of the FreeType project, and may only be used, */ /* modified, and distributed under the terms of the FreeType project */ /* license, LICENSE.TXT. By continuing to use, modify, or distribute */ /* this file you indicate that you have read the license and */ /* understand and accept it fully. */ /* */ /***************************************************************************/ /*************************************************************************/ /* */ /* This file is used to define the FreeType module error codes. */ /* */ /* If the macro FT_CONFIG_OPTION_USE_MODULE_ERRORS in `ftoption.h' is */ /* set, the lower byte of an error value identifies the error code as */ /* usual. In addition, the higher byte identifies the module. For */ /* example, the error `FT_Err_Invalid_File_Format' has value 0x0003, the */ /* error `TT_Err_Invalid_File_Format' has value 0x1303, the error */ /* `T1_Err_Invalid_File_Format' has value 0x1403, etc. */ /* */ /* Note that `FT_Err_Ok', `TT_Err_Ok', etc. are always equal to zero, */ /* including the high byte. */ /* */ /* If FT_CONFIG_OPTION_USE_MODULE_ERRORS isn't set, the higher byte of */ /* an error value is set to zero. */ /* */ /* To hide the various `XXX_Err_' prefixes in the source code, FreeType */ /* provides some macros in `fttypes.h'. */ /* */ /* FT_ERR( err ) */ /* Add current error module prefix (as defined with the */ /* `FT_ERR_PREFIX' macro) to `err'. For example, in the BDF module */ /* the line */ /* */ /* error = FT_ERR( Invalid_Outline ); */ /* */ /* expands to */ /* */ /* error = BDF_Err_Invalid_Outline; */ /* */ /* For simplicity, you can always use `FT_Err_Ok' directly instead */ /* of `FT_ERR( Ok )'. */ /* */ /* FT_ERR_EQ( errcode, err ) */ /* FT_ERR_NEQ( errcode, err ) */ /* Compare error code `errcode' with the error `err' for equality */ /* and inequality, respectively. Example: */ /* */ /* if ( FT_ERR_EQ( error, Invalid_Outline ) ) */ /* ... */ /* */ /* Using this macro you don't have to think about error prefixes. */ /* Of course, if module errors are not active, the above example is */ /* the same as */ /* */ /* if ( error == FT_Err_Invalid_Outline ) */ /* ... */ /* */ /* FT_ERROR_BASE( errcode ) */ /* FT_ERROR_MODULE( errcode ) */ /* Get base error and module error code, respectively. */ /* */ /* */ /* It can also be used to create a module error message table easily */ /* with something like */ /* */ /* { */ /* #undef FTMODERR_H_ */ /* #define FT_MODERRDEF( e, v, s ) { FT_Mod_Err_ ## e, s }, */ /* #define FT_MODERR_START_LIST { */ /* #define FT_MODERR_END_LIST { 0, 0 } }; */ /* */ /* const struct */ /* { */ /* int mod_err_offset; */ /* const char* mod_err_msg */ /* } ft_mod_errors[] = */ /* */ /* #include FT_MODULE_ERRORS_H */ /* } */ /* */ /*************************************************************************/ #ifndef FTMODERR_H_ #define FTMODERR_H_ /*******************************************************************/ /*******************************************************************/ /***** *****/ /***** SETUP MACROS *****/ /***** *****/ /*******************************************************************/ /*******************************************************************/ #undef FT_NEED_EXTERN_C #ifndef FT_MODERRDEF #ifdef FT_CONFIG_OPTION_USE_MODULE_ERRORS #define FT_MODERRDEF( e, v, s ) FT_Mod_Err_ ## e = v, #else #define FT_MODERRDEF( e, v, s ) FT_Mod_Err_ ## e = 0, #endif #define FT_MODERR_START_LIST enum { #define FT_MODERR_END_LIST FT_Mod_Err_Max }; #ifdef __cplusplus #define FT_NEED_EXTERN_C extern "C" { #endif #endif /* !FT_MODERRDEF */ /*******************************************************************/ /*******************************************************************/ /***** *****/ /***** LIST MODULE ERROR BASES *****/ /***** *****/ /*******************************************************************/ /*******************************************************************/ #ifdef FT_MODERR_START_LIST FT_MODERR_START_LIST #endif FT_MODERRDEF( Base, 0x000, "base module" ) FT_MODERRDEF( Autofit, 0x100, "autofitter module" ) FT_MODERRDEF( BDF, 0x200, "BDF module" ) FT_MODERRDEF( Bzip2, 0x300, "Bzip2 module" ) FT_MODERRDEF( Cache, 0x400, "cache module" ) FT_MODERRDEF( CFF, 0x500, "CFF module" ) FT_MODERRDEF( CID, 0x600, "CID module" ) FT_MODERRDEF( Gzip, 0x700, "Gzip module" ) FT_MODERRDEF( LZW, 0x800, "LZW module" ) FT_MODERRDEF( OTvalid, 0x900, "OpenType validation module" ) FT_MODERRDEF( PCF, 0xA00, "PCF module" ) FT_MODERRDEF( PFR, 0xB00, "PFR module" ) FT_MODERRDEF( PSaux, 0xC00, "PS auxiliary module" ) FT_MODERRDEF( PShinter, 0xD00, "PS hinter module" ) FT_MODERRDEF( PSnames, 0xE00, "PS names module" ) FT_MODERRDEF( Raster, 0xF00, "raster module" ) FT_MODERRDEF( SFNT, 0x1000, "SFNT module" ) FT_MODERRDEF( Smooth, 0x1100, "smooth raster module" ) FT_MODERRDEF( TrueType, 0x1200, "TrueType module" ) FT_MODERRDEF( Type1, 0x1300, "Type 1 module" ) FT_MODERRDEF( Type42, 0x1400, "Type 42 module" ) FT_MODERRDEF( Winfonts, 0x1500, "Windows FON/FNT module" ) FT_MODERRDEF( GXvalid, 0x1600, "GX validation module" ) #ifdef FT_MODERR_END_LIST FT_MODERR_END_LIST #endif /*******************************************************************/ /*******************************************************************/ /***** *****/ /***** CLEANUP *****/ /***** *****/ /*******************************************************************/ /*******************************************************************/ #ifdef FT_NEED_EXTERN_C } #endif #undef FT_MODERR_START_LIST #undef FT_MODERR_END_LIST #undef FT_MODERRDEF #undef FT_NEED_EXTERN_C #endif /* FTMODERR_H_ */ /* END */
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