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/*******************************************************************
*
* ttload.h 1.1
*
* TrueType Tables Loader.
*
* Copyright 1996-1999 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.
*
*
* Changes between 1.1 and 1.0 :
*
* - add function Load_TrueType_Any used by TT_Get_Font_Data
*
******************************************************************/
#ifndef TTLOAD_H
#define TTLOAD_H
#include "ttconfig.h"
#include "tttypes.h"
#include "ttobjs.h"
#ifdef __cplusplus
extern "C" {
#endif
EXPORT_DEF
Long TT_LookUp_Table( PFace face, ULong tag );
LOCAL_DEF TT_Error Load_TrueType_Directory ( PFace face,
ULong faceIndex );
LOCAL_DEF TT_Error Load_TrueType_MaxProfile ( PFace face );
LOCAL_DEF TT_Error Load_TrueType_Gasp ( PFace face );
LOCAL_DEF TT_Error Load_TrueType_Header ( PFace face );
LOCAL_DEF TT_Error Load_TrueType_Locations ( PFace face );
LOCAL_DEF TT_Error Load_TrueType_Names ( PFace face );
LOCAL_DEF TT_Error Load_TrueType_CVT ( PFace face );
LOCAL_DEF TT_Error Load_TrueType_CMap ( PFace face );
LOCAL_DEF TT_Error Load_TrueType_Programs ( PFace face );
LOCAL_DEF TT_Error Load_TrueType_OS2 ( PFace face );
LOCAL_DEF TT_Error Load_TrueType_PostScript ( PFace face );
LOCAL_DEF TT_Error Load_TrueType_Hdmx ( PFace face );
LOCAL_DEF TT_Error Load_TrueType_Metrics_Header( PFace face,
Bool vertical );
LOCAL_DEF TT_Error Load_TrueType_Any( PFace face,
ULong tag,
Long offset,
void* buffer,
Long* length );
LOCAL_DEF TT_Error Free_TrueType_Names( PFace face );
LOCAL_DEF TT_Error Free_TrueType_Hdmx ( PFace face );
/* The following macros are defined to simplify the writing of */
/* the various table and glyph loaders. */
/* For examples see the code in ttload.c, ttgload.c etc. */
#define USE_Stream( original, duplicate ) \
( (error = TT_Use_Stream( original, &duplicate )) != TT_Err_Ok )
#define DONE_Stream( _stream ) \
TT_Done_Stream( &_stream )
/* Define a file frame -- use it only when needed */
#define DEFINE_A_FRAME TFileFrame frame = TT_Null_FileFrame
/* Define a stream -- use it only when needed */
#define DEFINE_A_STREAM TT_Stream stream
#ifdef TT_CONFIG_OPTION_THREAD_SAFE /* re-entrant implementation */
/* The following macros define the necessary local */
/* variables used to access streams and frames. */
/* Define stream locals with frame */
#define DEFINE_STREAM_LOCALS \
TT_Error error; \
DEFINE_A_STREAM; \
DEFINE_A_FRAME
/* Define stream locals without frame */
#define DEFINE_STREAM_LOCALS_WO_FRAME \
TT_Error error; \
DEFINE_A_STREAM
/* Define locals with a predefined stream in reentrant mode -- see ttload.c */
#define DEFINE_LOAD_LOCALS( STREAM ) \
TT_Error error; \
DEFINE_A_STREAM = (STREAM); \
DEFINE_A_FRAME
/* Define locals without frame with a predefined stream - see ttload.c */
#define DEFINE_LOAD_LOCALS_WO_FRAME( STREAM ) \
TT_Error error; \
DEFINE_A_STREAM = (STREAM)
/* Define all locals necessary to access a font file */
#define DEFINE_ALL_LOCALS \
TT_Error error; \
DEFINE_A_STREAM; \
DEFINE_A_FRAME
#define ACCESS_Frame( _size_ ) \
( (error = TT_Access_Frame( stream, \
&frame, \
(Long)(_size_) )) != TT_Err_Ok )
#define CHECK_ACCESS_Frame( _size_ ) \
( (error = TT_Check_And_Access_Frame( stream, \
&frame, \
(Long)(_size_) )) != TT_Err_Ok )
#define FORGET_Frame() \
( (void)TT_Forget_Frame( &frame ) )
#define GET_Byte() TT_Get_Byte ( &frame )
#define GET_Char() TT_Get_Char ( &frame )
#define GET_UShort() TT_Get_UShort( &frame )
#define GET_Short() TT_Get_Short ( &frame )
#define GET_Long() TT_Get_Long ( &frame )
#define GET_ULong() TT_Get_ULong ( &frame )
#define GET_Tag4() TT_Get_ULong ( &frame )
#define FILE_Pos() TT_File_Pos ( stream )
#define FILE_Seek( _position_ ) \
( (error = TT_Seek_File( stream, \
(Long)(_position_) )) != TT_Err_Ok )
#define FILE_Skip( _distance_ ) \
( (error = TT_Skip_File( stream, \
(Long)(_distance_) )) != TT_Err_Ok )
#define FILE_Read( buffer, count ) \
( (error = TT_Read_File ( stream, \
buffer, \
(Long)(count) )) != TT_Err_Ok )
#define FILE_Read_At( pos, buffer, count ) \
( (error = TT_Read_At_File( stream, \
(Long)(pos), \
buffer, \
(Long)(count) )) != TT_Err_Ok )
#else /* thread-safe implementation */
/* Define stream locals with frame -- nothing in thread-safe mode */
#define DEFINE_STREAM_LOCALS \
TT_Error error
/* Define stream locals without frame -- nothing in thread-safe mode */
#define DEFINE_STREAM_LOCALS_WO_FRAME \
TT_Error error
/* Define locals with a predefined stream in reentrant mode -- see ttload.c */
#define DEFINE_LOAD_LOCALS( STREAM ) \
TT_Error error
/* Define locals without frame with a predefined stream - see ttload.c */
#define DEFINE_LOAD_LOCALS_WO_FRAME( STREAM ) \
TT_Error error
/* Define all locals necessary to access a font file */
#define DEFINE_ALL_LOCALS \
TT_Error error; \
DEFINE_A_STREAM
#define ACCESS_Frame( _size_ ) \
( (error = TT_Access_Frame( (Long)(_size_) )) != TT_Err_Ok )
#define CHECK_ACCESS_Frame( _size_ ) \
( (error = TT_Check_And_Access_Frame( (Long)(_size_) )) != TT_Err_Ok )
#define FORGET_Frame() \
( (void)TT_Forget_Frame() )
#define GET_Byte() TT_Get_Byte ()
#define GET_Char() TT_Get_Char ()
#define GET_UShort() TT_Get_UShort()
#define GET_Short() TT_Get_Short ()
#define GET_Long() TT_Get_Long ()
#define GET_ULong() TT_Get_ULong ()
#define GET_Tag4() TT_Get_ULong ()
#define FILE_Pos() TT_File_Pos()
#define FILE_Seek( _position_ ) \
( (error = TT_Seek_File( (Long)(_position_) )) != TT_Err_Ok )
#define FILE_Skip( _distance_ ) \
( (error = TT_Skip_File( (Long)(_distance_) )) != TT_Err_Ok )
#define FILE_Read( buffer, count ) \
( (error = TT_Read_File ( buffer, \
(Long)(count) )) != TT_Err_Ok )
#define FILE_Read_At( pos, buffer, count ) \
( (error = TT_Read_At_File( (Long)(pos), \
buffer, \
(Long)(count) )) != TT_Err_Ok )
#endif /* TT_CONFIG_OPTION_THREAD_SAFE */
#ifdef __cplusplus
}
#endif
#endif /* TTLOAD_H */
/* END */
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