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kc3-lang/freetype/src/gxvalid/gxvmod.c
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Author :
Jens Claudius
Date : 2006-08-27 11:26:18
Hash : a787f455
Message : 2006-08-27 Jens Claudius <jens.claudius@yahoo.com> Fix miscellaneous compiler warnings. * freetype2/include/freetype/internal/ftobjs.h: close comment with `*/' to avoid `/* in comment' compiler warning. * freetype2/src/base/ftdbgmem.c (ft_mem_table_get_source): Turn cast `(FT_UInt32)(void*)' into `(FT_UInt32)(FT_PtrDist)(void*)' since on 64-bit platforms void* is larger than FT_UInt32. * freetype2/src/base/ftobjs.c (t_validator_error): cast away volatileness of argument to ft_longjmp. Spotted by Werner `Putzfrau' Lemberg. * freetype2/src/bdf/bdflib.c (bdf_load_font): initialize local variable `lineno'. * freetype2/src/gxvalid/gxvmod.c (classic_kern_validate): mark local variable `error' volatile.
- src/gxvalid/gxvmod.c
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/***************************************************************************/ /* */ /* gxvmod.c */ /* */ /* FreeType's TrueTypeGX/AAT validation module implementation (body). */ /* */ /* Copyright 2004, 2005, 2006 */ /* by suzuki toshiya, Masatake YAMATO, Red Hat K.K., */ /* 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. */ /* */ /***************************************************************************/ /***************************************************************************/ /* */ /* gxvalid is derived from both gxlayout module and otvalid module. */ /* Development of gxlayout is supported by the Information-technology */ /* Promotion Agency(IPA), Japan. */ /* */ /***************************************************************************/ #include <ft2build.h> #include FT_TRUETYPE_TABLES_H #include FT_TRUETYPE_TAGS_H #include FT_GX_VALIDATE_H #include FT_INTERNAL_OBJECTS_H #include FT_SERVICE_GX_VALIDATE_H #include "gxvmod.h" #include "gxvalid.h" #include "gxvcommn.h" /*************************************************************************/ /* */ /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ /* messages during execution. */ /* */ #undef FT_COMPONENT #define FT_COMPONENT trace_gxvmodule static FT_Error gxv_load_table( FT_Face face, FT_Tag tag, FT_Byte* volatile* table, FT_ULong* table_len ) { FT_Error error; FT_Memory memory = FT_FACE_MEMORY( face ); error = FT_Load_Sfnt_Table( face, tag, 0, NULL, table_len ); if ( error == GXV_Err_Table_Missing ) return GXV_Err_Ok; if ( error ) goto Exit; if ( FT_ALLOC( *table, *table_len ) ) goto Exit; error = FT_Load_Sfnt_Table( face, tag, 0, *table, table_len ); Exit: return error; } #define GXV_TABLE_DECL( _sfnt ) \ FT_Byte* volatile _sfnt = NULL; \ FT_ULong len_ ## _sfnt = 0 #define GXV_TABLE_LOAD( _sfnt ) \ if ( ( FT_VALIDATE_ ## _sfnt ## _INDEX < table_count ) && \ ( gx_flags & FT_VALIDATE_ ## _sfnt ) ) \ { \ error = gxv_load_table( face, TTAG_ ## _sfnt, \ &_sfnt, &len_ ## _sfnt ); \ if ( error ) \ goto Exit; \ } #define GXV_TABLE_VALIDATE( _sfnt ) \ if ( _sfnt ) \ { \ ft_validator_init( &valid, _sfnt, _sfnt + len_ ## _sfnt, \ FT_VALIDATE_DEFAULT ); \ if ( ft_setjmp( valid.jump_buffer ) == 0 ) \ gxv_ ## _sfnt ## _validate( _sfnt, face, &valid ); \ error = valid.error; \ if ( error ) \ goto Exit; \ } #define GXV_TABLE_SET( _sfnt ) \ if ( FT_VALIDATE_ ## _sfnt ## _INDEX < table_count ) \ tables[FT_VALIDATE_ ## _sfnt ## _INDEX] = (FT_Bytes)_sfnt static FT_Error gxv_validate( FT_Face face, FT_UInt gx_flags, FT_Bytes tables[FT_VALIDATE_GX_LENGTH], FT_UInt table_count ) { FT_Memory volatile memory = FT_FACE_MEMORY( face ); FT_Error error = GXV_Err_Ok; FT_ValidatorRec volatile valid; FT_UInt i; GXV_TABLE_DECL( feat ); GXV_TABLE_DECL( bsln ); GXV_TABLE_DECL( trak ); GXV_TABLE_DECL( just ); GXV_TABLE_DECL( mort ); GXV_TABLE_DECL( morx ); GXV_TABLE_DECL( kern ); GXV_TABLE_DECL( opbd ); GXV_TABLE_DECL( prop ); GXV_TABLE_DECL( lcar ); for ( i = 0; i < table_count; i++ ) tables[i] = 0; /* load tables */ GXV_TABLE_LOAD( feat ); GXV_TABLE_LOAD( bsln ); GXV_TABLE_LOAD( trak ); GXV_TABLE_LOAD( just ); GXV_TABLE_LOAD( mort ); GXV_TABLE_LOAD( morx ); GXV_TABLE_LOAD( kern ); GXV_TABLE_LOAD( opbd ); GXV_TABLE_LOAD( prop ); GXV_TABLE_LOAD( lcar ); /* validate tables */ GXV_TABLE_VALIDATE( feat ); GXV_TABLE_VALIDATE( bsln ); GXV_TABLE_VALIDATE( trak ); GXV_TABLE_VALIDATE( just ); GXV_TABLE_VALIDATE( mort ); GXV_TABLE_VALIDATE( morx ); GXV_TABLE_VALIDATE( kern ); GXV_TABLE_VALIDATE( opbd ); GXV_TABLE_VALIDATE( prop ); GXV_TABLE_VALIDATE( lcar ); /* Set results */ GXV_TABLE_SET( feat ); GXV_TABLE_SET( mort ); GXV_TABLE_SET( morx ); GXV_TABLE_SET( bsln ); GXV_TABLE_SET( just ); GXV_TABLE_SET( kern ); GXV_TABLE_SET( opbd ); GXV_TABLE_SET( trak ); GXV_TABLE_SET( prop ); GXV_TABLE_SET( lcar ); Exit: if ( error ) { FT_FREE( feat ); FT_FREE( bsln ); FT_FREE( trak ); FT_FREE( just ); FT_FREE( mort ); FT_FREE( morx ); FT_FREE( kern ); FT_FREE( opbd ); FT_FREE( prop ); FT_FREE( lcar ); } return error; } static FT_Error classic_kern_validate( FT_Face face, FT_UInt ckern_flags, FT_Bytes* ckern_table ) { FT_Memory volatile memory = FT_FACE_MEMORY( face ); FT_Byte* volatile ckern = NULL; FT_ULong len_ckern = 0; /* without volatile on `error' GCC 4.1.1. emits: */ /* warning: variable 'error' might be clobbered by 'longjmp' or 'vfork' */ /* this warning seems spurious but --- */ FT_Error volatile error = GXV_Err_Ok; FT_ValidatorRec volatile valid; *ckern_table = NULL; error = gxv_load_table( face, TTAG_kern, &ckern, &len_ckern ); if ( error ) goto Exit; if ( ckern ) { ft_validator_init( &valid, ckern, ckern + len_ckern, FT_VALIDATE_DEFAULT ); if ( ft_setjmp( valid.jump_buffer ) == 0 ) gxv_kern_validate_classic( ckern, face, ckern_flags & FT_VALIDATE_CKERN, &valid ); error = valid.error; if ( error ) goto Exit; } *ckern_table = ckern; Exit: if ( error ) FT_FREE( ckern ); return error; } static const FT_Service_GXvalidateRec gxvalid_interface = { gxv_validate }; static const FT_Service_CKERNvalidateRec ckernvalid_interface = { classic_kern_validate }; static const FT_ServiceDescRec gxvalid_services[] = { { FT_SERVICE_ID_GX_VALIDATE, &gxvalid_interface }, { FT_SERVICE_ID_CLASSICKERN_VALIDATE, &ckernvalid_interface }, { NULL, NULL } }; static FT_Pointer gxvalid_get_service( FT_Module module, const char* service_id ) { FT_UNUSED( module ); return ft_service_list_lookup( gxvalid_services, service_id ); } FT_CALLBACK_TABLE_DEF const FT_Module_Class gxv_module_class = { 0, sizeof( FT_ModuleRec ), "gxvalid", 0x10000L, 0x20000L, 0, /* module-specific interface */ (FT_Module_Constructor)0, (FT_Module_Destructor) 0, (FT_Module_Requester) gxvalid_get_service }; /* END */