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* include/freetype/internal/ftobjs.h: Don't include 

FT_CONFIG_STANDARD_LIBRARY_H.
(FT_Validator, FT_VAlidationLevel, FT_ValidatorRec, FT_VALIDATOR,
ft_validator_init, ft_validator_run, ft_validator_error, FT_INVALID,
FT_INVALID_TOO_SHORT, FT_INVALID_OFFSET, FT_INVALID_FORMAT,
FT_INVALID_GLYPH_ID, FT_INVALID_DATA): Move to...

* include/freetype/internal/ftvalid.h: New file.
Make FT_INVALID return module-specific error codes.

* include/freetype/internal/internal.h (FT_INTERNAL_VALIDATE_H): New
macro.

* include/freetype/fterrors.h: Undefine FT_ERR_PREFIX only if
FT_KEEP_ERR_PREFIX isn't defined.

* src/base/ftobjs.c: Include FT_INTERNAL_VALIDATE_H.

* src/sfnt/ttcmap.h: Don't include FT_INTERNAL_OBJECTS_H but
FT_INTERNAL_VALIDATE_H.

* src/sfnt/ttcmap.c: Don't include FT_INTERNAL_OBJECTS_H but
FT_INTERNAL_VALIDATE_H.
Include sferrors.h before FT_INTERNAL_VALIDATE_H.
s/FT_Err_Ok/SFNT_Err_Ok/.

* src/sfnt/sferrors.h: Define FT_KEEP_ERR_PREFIX.

* src/type1/t1afm.c: Include t1errors.h.
This commit is contained in:
Werner Lemberg 2004-09-06 07:06:56 +00:00
parent 9dc9766d73
commit 6ee0aacfb8
11 changed files with 216 additions and 135 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

32
ChangeLog
View File

@ -1,3 +1,35 @@
2004-09-04 Werner Lemberg <wl@gnu.org>
* include/freetype/internal/ftobjs.h: Don't include
FT_CONFIG_STANDARD_LIBRARY_H.
(FT_Validator, FT_VAlidationLevel, FT_ValidatorRec, FT_VALIDATOR,
ft_validator_init, ft_validator_run, ft_validator_error, FT_INVALID,
FT_INVALID_TOO_SHORT, FT_INVALID_OFFSET, FT_INVALID_FORMAT,
FT_INVALID_GLYPH_ID, FT_INVALID_DATA): Move to...
* include/freetype/internal/ftvalid.h: New file.
Make FT_INVALID return module-specific error codes.
* include/freetype/internal/internal.h (FT_INTERNAL_VALIDATE_H): New
macro.
* include/freetype/fterrors.h: Undefine FT_ERR_PREFIX only if
FT_KEEP_ERR_PREFIX isn't defined.
* src/base/ftobjs.c: Include FT_INTERNAL_VALIDATE_H.
* src/sfnt/ttcmap.h: Don't include FT_INTERNAL_OBJECTS_H but
FT_INTERNAL_VALIDATE_H.
* src/sfnt/ttcmap.c: Don't include FT_INTERNAL_OBJECTS_H but
FT_INTERNAL_VALIDATE_H.
Include sferrors.h before FT_INTERNAL_VALIDATE_H.
s/FT_Err_Ok/SFNT_Err_Ok/.
* src/sfnt/sferrors.h: Define FT_KEEP_ERR_PREFIX.
* src/type1/t1afm.c: Include t1errors.h.
2004-09-03 Werner Lemberg <wl@gnu.org>
* src/base/ftdebug.c (ft_debug_init): Highest debug level is 7,

29
include/freetype/fterrors.h
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@ -4,7 +4,7 @@
/* */
/* FreeType error code handling (specification). */
/* */
/* Copyright 1996-2001, 2002 by */
/* Copyright 1996-2001, 2002, 2004 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* This file is part of the FreeType project, and may only be used, */
@ -25,17 +25,12 @@
/* I - Error Formats */
/* ----------------- */
/* */
/* Since release 2.1, the error constants have changed. The lower */
/* byte of the error value gives the "generic" error code, while the */
/* higher byte indicates in which module the error occurred. */
/* */
/* You can use the macro FT_ERROR_BASE(x) macro to extract the generic */
/* error code from an FT_Error value. */
/* */
/* The configuration macro FT_CONFIG_OPTION_USE_MODULE_ERRORS can be */
/* undefined in ftoption.h in order to make the higher byte always */
/* zero, in case you need to be compatible with previous versions of */
/* FreeType 2. */
/* defined in ftoption.h in order to make the higher byte indicate */
/* the module where the error has happened (this is not compatible */
/* with standard builds of FreeType 2). You can then use the macro */
/* FT_ERROR_BASE macro to extract the generic error code from an */
/* FT_Error value. */
/* */
/* */
/* II - Error Message strings */
@ -158,7 +153,7 @@
#define FT_ERRORDEF_( e, v, s ) \
FT_ERRORDEF( FT_ERR_CAT( FT_ERR_PREFIX, e ), v + FT_ERR_BASE, s )
/* this is only used for FT_Err_Ok, which must be 0! */
/* this is only used for <module>_Err_Ok, which must be 0! */
#define FT_NOERRORDEF_( e, v, s ) \
FT_ERRORDEF( FT_ERR_CAT( FT_ERR_PREFIX, e ), v, s )
@ -168,7 +163,7 @@
#endif
/* no include the error codes */
/* now include the error codes */
#include FT_ERROR_DEFINITIONS_H
@ -197,9 +192,13 @@
#undef FT_NOERRORDEF_
#undef FT_NEED_EXTERN_C
#undef FT_ERR_PREFIX
#undef FT_ERR_BASE
#undef FT_ERR_CONCAT
#undef FT_ERR_BASE
/* FT_KEEP_ERR_PREFIX is needed for ftvalid.h */
#ifndef FT_KEEP_ERR_PREFIX
#undef FT_ERR_PREFIX
#endif
#endif /* __FTERRORS_H__ */

2
include/freetype/fttypes.h
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@ -4,7 +4,7 @@
/* */
/* FreeType simple types definitions (specification only). */
/* */
/* Copyright 1996-2001 by */
/* Copyright 1996-2001, 2002, 2004 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* This file is part of the FreeType project, and may only be used, */

106
include/freetype/internal/ftobjs.h
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@ -27,7 +27,6 @@
#define __FTOBJS_H__
#include <ft2build.h>
#include FT_CONFIG_STANDARD_LIBRARY_H /* for ft_setjmp and ft_longjmp */
#include FT_RENDER_H
#include FT_SIZES_H
#include FT_INTERNAL_MEMORY_H
@ -81,111 +80,6 @@ FT_BEGIN_HEADER
#define FT_PIX_CEIL( x ) FT_PIX_FLOOR( (x) + 63 )
/*************************************************************************/
/*************************************************************************/
/*************************************************************************/
/**** ****/
/**** ****/
/**** V A L I D A T I O N ****/
/**** ****/
/**** ****/
/*************************************************************************/
/*************************************************************************/
/*************************************************************************/
/* handle to a validation object */
typedef struct FT_ValidatorRec_* FT_Validator;
/*************************************************************************/
/* */
/* There are three distinct validation levels defined here: */
/* */
/* FT_VALIDATE_DEFAULT :: */
/* A table that passes this validation level can be used reliably by */
/* FreeType. It generally means that all offsets have been checked to */
/* prevent out-of-bound reads, array counts are correct, etc. */
/* */
/* FT_VALIDATE_TIGHT :: */
/* A table that passes this validation level can be used reliably and */
/* doesn't contain invalid data. For example, a charmap table that */
/* returns invalid glyph indices will not pass, even though it can */
/* be used with FreeType in default mode (the library will simply */
/* return an error later when trying to load the glyph). */
/* */
/* It also check that fields that must be a multiple of 2, 4, or 8 */
/* don't have incorrect values, etc. */
/* */
/* FT_VALIDATE_PARANOID :: */
/* Only for font debugging. Checks that a table follows the */
/* specification by 100%. Very few fonts will be able to pass this */
/* level anyway but it can be useful for certain tools like font */
/* editors/converters. */
/* */
typedef enum FT_ValidationLevel_
{
FT_VALIDATE_DEFAULT = 0,
FT_VALIDATE_TIGHT,
FT_VALIDATE_PARANOID
} FT_ValidationLevel;
/* validator structure */
typedef struct FT_ValidatorRec_
{
const FT_Byte* base; /* address of table in memory */
const FT_Byte* limit; /* `base' + sizeof(table) in memory */
FT_ValidationLevel level; /* validation level */
FT_Error error; /* error returned. 0 means success */
ft_jmp_buf jump_buffer; /* used for exception handling */
} FT_ValidatorRec;
#define FT_VALIDATOR( x ) ((FT_Validator)( x ))
FT_BASE( void )
ft_validator_init( FT_Validator valid,
const FT_Byte* base,
const FT_Byte* limit,
FT_ValidationLevel level );
FT_BASE( FT_Int )
ft_validator_run( FT_Validator valid );
/* Sets the error field in a validator, then calls `longjmp' to return */
/* to high-level caller. Using `setjmp/longjmp' avoids many stupid */
/* error checks within the validation routines. */
/* */
FT_BASE( void )
ft_validator_error( FT_Validator valid,
FT_Error error );
/* Calls ft_validate_error. Assumes that the `valid' local variable */
/* holds a pointer to the current validator object. */
/* */
#define FT_INVALID( _error ) ft_validator_error( valid, _error )
/* called when a broken table is detected */
#define FT_INVALID_TOO_SHORT FT_INVALID( FT_Err_Invalid_Table )
/* called when an invalid offset is detected */
#define FT_INVALID_OFFSET FT_INVALID( FT_Err_Invalid_Offset )
/* called when an invalid format/value is detected */
#define FT_INVALID_FORMAT FT_INVALID( FT_Err_Invalid_Table )
/* called when an invalid glyph index is detected */
#define FT_INVALID_GLYPH_ID FT_INVALID( FT_Err_Invalid_Glyph_Index )
/* called when an invalid field value is detected */
#define FT_INVALID_DATA FT_INVALID( FT_Err_Invalid_Table )
/*************************************************************************/
/*************************************************************************/
/*************************************************************************/

148
include/freetype/internal/ftvalid.h Normal file
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@ -0,0 +1,148 @@
/***************************************************************************/
/* */
/* ftvalid.h */
/* */
/* FreeType validation support (specification). */
/* */
/* Copyright 2004 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. */
/* */
/***************************************************************************/
#ifndef __FTVALID_H__
#define __FTVALID_H__
#include <ft2build.h>
#include FT_CONFIG_STANDARD_LIBRARY_H /* for ft_setjmp and ft_longjmp */
FT_BEGIN_HEADER
/*************************************************************************/
/*************************************************************************/
/*************************************************************************/
/**** ****/
/**** ****/
/**** V A L I D A T I O N ****/
/**** ****/
/**** ****/
/*************************************************************************/
/*************************************************************************/
/*************************************************************************/
/* handle to a validation object */
typedef struct FT_ValidatorRec_* FT_Validator;
/*************************************************************************/
/* */
/* There are three distinct validation levels defined here: */
/* */
/* FT_VALIDATE_DEFAULT :: */
/* A table that passes this validation level can be used reliably by */
/* FreeType. It generally means that all offsets have been checked to */
/* prevent out-of-bound reads, array counts are correct, etc. */
/* */
/* FT_VALIDATE_TIGHT :: */
/* A table that passes this validation level can be used reliably and */
/* doesn't contain invalid data. For example, a charmap table that */
/* returns invalid glyph indices will not pass, even though it can */
/* be used with FreeType in default mode (the library will simply */
/* return an error later when trying to load the glyph). */
/* */
/* It also check that fields that must be a multiple of 2, 4, or 8 */
/* don't have incorrect values, etc. */
/* */
/* FT_VALIDATE_PARANOID :: */
/* Only for font debugging. Checks that a table follows the */
/* specification by 100%. Very few fonts will be able to pass this */
/* level anyway but it can be useful for certain tools like font */
/* editors/converters. */
/* */
typedef enum FT_ValidationLevel_
{
FT_VALIDATE_DEFAULT = 0,
FT_VALIDATE_TIGHT,
FT_VALIDATE_PARANOID
} FT_ValidationLevel;
/* validator structure */
typedef struct FT_ValidatorRec_
{
const FT_Byte* base; /* address of table in memory */
const FT_Byte* limit; /* `base' + sizeof(table) in memory */
FT_ValidationLevel level; /* validation level */
FT_Error error; /* error returned. 0 means success */
ft_jmp_buf jump_buffer; /* used for exception handling */
} FT_ValidatorRec;
#define FT_VALIDATOR( x ) ((FT_Validator)( x ))
FT_BASE( void )
ft_validator_init( FT_Validator valid,
const FT_Byte* base,
const FT_Byte* limit,
FT_ValidationLevel level );
FT_BASE( FT_Int )
ft_validator_run( FT_Validator valid );
/* Sets the error field in a validator, then calls `longjmp' to return */
/* to high-level caller. Using `setjmp/longjmp' avoids many stupid */
/* error checks within the validation routines. */
/* */
FT_BASE( void )
ft_validator_error( FT_Validator valid,
FT_Error error );
/* Calls ft_validate_error. Assumes that the `valid' local variable */
/* holds a pointer to the current validator object. */
/* */
/* Use preprocessor prescan to pass FT_ERR_PREFIX. */
/* */
#define FT_INVALID( _prefix, _error ) FT_INVALID_( _prefix, _error )
#define FT_INVALID_( _prefix, _error ) \
ft_validator_error( valid, _prefix ## _error )
/* called when a broken table is detected */
#define FT_INVALID_TOO_SHORT \
FT_INVALID( FT_ERR_PREFIX, Invalid_Table )
/* called when an invalid offset is detected */
#define FT_INVALID_OFFSET \
FT_INVALID( FT_ERR_PREFIX, Invalid_Offset )
/* called when an invalid format/value is detected */
#define FT_INVALID_FORMAT \
FT_INVALID( FT_ERR_PREFIX, Invalid_Table )
/* called when an invalid glyph index is detected */
#define FT_INVALID_GLYPH_ID \
FT_INVALID( FT_ERR_PREFIX, Invalid_Glyph_Index )
/* called when an invalid field value is detected */
#define FT_INVALID_DATA \
FT_INVALID( FT_ERR_PREFIX, Invalid_Table )
FT_END_HEADER
#endif /* __FTVALID_H__ */
/* END */

1
include/freetype/internal/internal.h
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@ -35,6 +35,7 @@
#define FT_INTERNAL_SFNT_H <freetype/internal/sfnt.h>
#define FT_INTERNAL_SERVICE_H <freetype/internal/ftserv.h>
#define FT_INTERNAL_RFORK_H <freetype/internal/ftrfork.h>
#define FT_INTERNAL_VALIDATE_H <freetype/internal/ftvalid.h>
#define FT_INTERNAL_TRUETYPE_TYPES_H <freetype/internal/tttypes.h>
#define FT_INTERNAL_TYPE1_TYPES_H <freetype/internal/t1types.h>

1
src/base/ftobjs.c
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@ -19,6 +19,7 @@
#include <ft2build.h>
#include FT_LIST_H
#include FT_OUTLINE_H
#include FT_INTERNAL_VALIDATE_H
#include FT_INTERNAL_OBJECTS_H
#include FT_INTERNAL_DEBUG_H
#include FT_INTERNAL_RFORK_H

4
src/sfnt/sferrors.h
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@ -4,7 +4,7 @@
/* */
/* SFNT error codes (specification only). */
/* */
/* Copyright 2001 by */
/* Copyright 2001, 2004 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* This file is part of the FreeType project, and may only be used, */
@ -32,6 +32,8 @@
#define FT_ERR_PREFIX SFNT_Err_
#define FT_ERR_BASE FT_Mod_Err_SFNT
#define FT_KEEP_ERR_PREFIX
#include FT_ERRORS_H
#endif /* __SFERRORS_H__ */

25
src/sfnt/ttcmap.c
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@ -18,12 +18,14 @@
#include <ft2build.h>
#include FT_INTERNAL_DEBUG_H
#include FT_INTERNAL_OBJECTS_H
#include "sferrors.h" /* must come before FT_INTERNAL_VALIDATE_H */
#include FT_INTERNAL_VALIDATE_H
#include FT_INTERNAL_STREAM_H
#include "ttload.h"
#include "ttcmap.h"
#include "sferrors.h"
/*************************************************************************/
/* */
@ -153,7 +155,7 @@
cmap_info->language = (FT_ULong)TT_PEEK_USHORT( p );
return FT_Err_Ok;
return SFNT_Err_Ok;
}
@ -161,7 +163,7 @@
const TT_CMap_ClassRec tt_cmap0_class_rec =
{
{
sizeof( TT_CMapRec ),
sizeof ( TT_CMapRec ),
(FT_CMap_InitFunc) tt_cmap_init,
(FT_CMap_DoneFunc) NULL,
@ -523,7 +525,7 @@
cmap_info->language = (FT_ULong)TT_PEEK_USHORT( p );
return FT_Err_Ok;
return SFNT_Err_Ok;
}
@ -531,7 +533,7 @@
const TT_CMap_ClassRec tt_cmap2_class_rec =
{
{
sizeof( TT_CMapRec ),
sizeof ( TT_CMapRec ),
(FT_CMap_InitFunc) tt_cmap_init,
(FT_CMap_DoneFunc) NULL,
@ -1098,7 +1100,7 @@
cmap_info->language = (FT_ULong)TT_PEEK_USHORT( p );
return FT_Err_Ok;
return SFNT_Err_Ok;
}
@ -1256,7 +1258,7 @@
cmap_info->language = (FT_ULong)TT_PEEK_USHORT( p );
return FT_Err_Ok;
return SFNT_Err_Ok;
}
@ -1506,7 +1508,8 @@
cmap_info->language = (FT_ULong)TT_PEEK_ULONG( p );
return FT_Err_Ok;
return SFNT_Err_Ok;
}
@ -1652,7 +1655,7 @@
cmap_info->language = (FT_ULong)TT_PEEK_ULONG( p );
return FT_Err_Ok;
return SFNT_Err_Ok;
}
@ -1836,7 +1839,7 @@
cmap_info->language = (FT_ULong)TT_PEEK_ULONG( p );
return FT_Err_Ok;
return SFNT_Err_Ok;
}

2
src/sfnt/ttcmap.h
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@ -22,7 +22,7 @@
#include <ft2build.h>
#include FT_INTERNAL_TRUETYPE_TYPES_H
#include FT_INTERNAL_OBJECTS_H
#include FT_INTERNAL_VALIDATE_H
#include FT_SERVICE_TT_CMAP_H
FT_BEGIN_HEADER

1
src/type1/t1afm.c
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@ -18,6 +18,7 @@
#include <ft2build.h>
#include "t1afm.h"
#include "t1errors.h"
#include FT_INTERNAL_STREAM_H
#include FT_INTERNAL_TYPE1_TYPES_H