96 lines
2.7 KiB
C
96 lines
2.7 KiB
C
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/**************************************************************************
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*
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* ftsystem.h 1.0
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*
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* FreeType low-level system interface definition
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*
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* This file contains the definitions of the stream and memory interfaces
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* used by FreeType.
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*
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*
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* Copyright 1996-1999 by
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* David Turner, Robert Wilhelm, and Werner Lemberg
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*
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* This file is part of the FreeType project, and may only be used
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* modified and distributed under the terms of the FreeType project
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* license, LICENSE.TXT. By continuing to use, modify, or distribute
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* this file you indicate that you have read the license and
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* understand and accept it fully.
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*
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**************************************************************************/
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#ifndef FTSYSTEM_H
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#define FTSYSTEM_H
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/*************************************************************************
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*
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* M E M O R Y M A N A G E M E N T
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*
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*************************************************************************/
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typedef struct FT_MemoryRec_* FT_Memory;
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typedef void* (*FT_Alloc_Func)( FT_Memory memory,
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long size );
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typedef void (*FT_Free_Func)( FT_Memory memory,
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void* block );
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typedef void* (*FT_Realloc_Func)( FT_Memory memory,
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long cur_size,
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long new_size,
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void* block );
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struct FT_MemoryRec_
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{
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void* user;
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FT_Alloc_Func alloc;
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FT_Free_Func free;
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FT_Realloc_Func realloc;
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};
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/*************************************************************************
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*
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* I / O M A N A G E M E N T
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*
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*************************************************************************/
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typedef union FT_StreamDesc_
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{
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long value;
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void* pointer;
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} FT_StreamDesc;
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typedef struct FT_StreamRec_* FT_Stream;
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typedef unsigned long (*FT_Stream_IO)( FT_Stream stream,
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unsigned long offset,
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char* buffer,
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unsigned long count );
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typedef void (*FT_Stream_Close)( FT_Stream stream );
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struct FT_StreamRec_
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{
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char* base;
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unsigned long size;
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unsigned long pos;
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FT_StreamDesc descriptor;
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FT_StreamDesc pathname; /* ignored by FreeType - useful for debugging */
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FT_Stream_IO read;
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FT_Stream_Close close;
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FT_Memory memory;
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char* cursor;
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char* limit;
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};
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#endif /* FTSYSTEM_H */
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