138 lines
6.3 KiB
C
138 lines
6.3 KiB
C
/***************************************************************************/
|
|
/* */
|
|
/* ftmemory.h */
|
|
/* */
|
|
/* The FreeType memory management macros (specification). */
|
|
/* */
|
|
/* Copyright 1996-2000 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 FTMEMORY_H
|
|
#define FTMEMORY_H
|
|
|
|
|
|
#include <freetype/config/ftconfig.h>
|
|
#include <freetype/fttypes.h>
|
|
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
|
|
/*************************************************************************/
|
|
/* */
|
|
/* <Macro> */
|
|
/* FT_SET_ERROR */
|
|
/* */
|
|
/* <Description> */
|
|
/* This macro is used to set an implicit `error' variable to a given */
|
|
/* expression's value (usually a function call), and convert it to a */
|
|
/* boolean which is set whenever the value is != 0. */
|
|
/* */
|
|
#undef FT_SET_ERROR
|
|
#define FT_SET_ERROR( expression ) \
|
|
( ( error = (expression) ) != 0 )
|
|
|
|
|
|
/*************************************************************************/
|
|
/*************************************************************************/
|
|
/*************************************************************************/
|
|
/**** ****/
|
|
/**** ****/
|
|
/**** M E M O R Y ****/
|
|
/**** ****/
|
|
/**** ****/
|
|
/*************************************************************************/
|
|
/*************************************************************************/
|
|
/*************************************************************************/
|
|
|
|
FT_BASE( FT_Error ) FT_Alloc( FT_Memory memory,
|
|
FT_Long size,
|
|
void** P );
|
|
|
|
FT_BASE( FT_Error ) FT_Realloc( FT_Memory memory,
|
|
FT_Long current,
|
|
FT_Long size,
|
|
void** P );
|
|
|
|
FT_BASE( void ) FT_Free( FT_Memory memory,
|
|
void** P );
|
|
|
|
|
|
|
|
/* This `#include' is needed by the MEM_xxx() macros; it should be */
|
|
/* available on all platforms we know of. */
|
|
#include <string.h>
|
|
|
|
#define MEM_Set( dest, byte, count ) memset( dest, byte, count )
|
|
|
|
#define MEM_Copy( dest, source, count ) memcpy( dest, source, count )
|
|
|
|
#define MEM_Move( dest, source, count ) memmove( dest, source, count )
|
|
|
|
|
|
/*************************************************************************/
|
|
/* */
|
|
/* We now support closures to produce completely reentrant code. This */
|
|
/* means the allocation functions now takes an additional argument */
|
|
/* (`memory'). It is a handle to a given memory object, responsible for */
|
|
/* all low-level operations, including memory management and */
|
|
/* synchronisation. */
|
|
/* */
|
|
/* In order to keep our code readable and use the same macros in the */
|
|
/* font drivers and the rest of the library, MEM_Alloc(), ALLOC(), and */
|
|
/* ALLOC_ARRAY() now use an implicit variable, `memory'. It must be */
|
|
/* defined at all locations where a memory operation is queried. */
|
|
/* */
|
|
#define MEM_Alloc( _pointer_, _size_ ) \
|
|
FT_Alloc( memory, _size_, (void**)&(_pointer_) )
|
|
|
|
#define MEM_Alloc_Array( _pointer_, _count_, _type_ ) \
|
|
FT_Alloc( memory, (_count_)*sizeof ( _type_ ), \
|
|
(void**)&(_pointer_) )
|
|
|
|
#define MEM_Realloc( _pointer_, _current_, _size_ ) \
|
|
FT_Realloc( memory, _current_, _size_, (void**)&(_pointer_) )
|
|
|
|
#define MEM_Realloc_Array( _pointer_, _current_, _new_, _type_ ) \
|
|
FT_Realloc( memory, (_current_)*sizeof ( _type_ ), \
|
|
(_new_)*sizeof ( _type_ ), (void**)&(_pointer_) )
|
|
|
|
#define ALLOC( _pointer_, _size_ ) \
|
|
FT_SET_ERROR( MEM_Alloc( _pointer_, _size_ ) )
|
|
|
|
#define REALLOC( _pointer_, _current_, _size_ ) \
|
|
FT_SET_ERROR( MEM_Realloc( _pointer_, _current_, _size_ ) )
|
|
|
|
#define ALLOC_ARRAY( _pointer_, _count_, _type_ ) \
|
|
FT_SET_ERROR( MEM_Alloc( _pointer_, \
|
|
(_count_)*sizeof ( _type_ ) ) )
|
|
|
|
#define REALLOC_ARRAY( _pointer_, _current_, _count_, _type_ ) \
|
|
FT_SET_ERROR( MEM_Realloc( _pointer_, \
|
|
(_current_)*sizeof ( _type_ ), \
|
|
(_count_)*sizeof ( _type_ ) ) )
|
|
|
|
#define FREE( _pointer_ ) FT_Free( memory, (void**)&(_pointer_) )
|
|
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
|
|
#endif /* FTMEMORY_H */
|
|
|
|
|
|
/* END */
|