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+/***************************************************************************/
+/* */
+/* ftmemory.h */
+/* */
+/* The FreeType memory management macros (specification). */
+/* */
+/* 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, */
+/* 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 <ft2build.h>
+#include FT_CONFIG_CONFIG_H
+#include FT_TYPES_H
+
+
+FT_BEGIN_HEADER
+
+
+ /*************************************************************************/
+ /* */
+ /* <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 ****/
+ /**** ****/
+ /**** ****/
+ /*************************************************************************/
+ /*************************************************************************/
+ /*************************************************************************/
+
+#ifdef FT_DEBUG_MEMORY
+
+ FT_BASE( FT_Error )
+ FT_Alloc_Debug( FT_Memory memory,
+ FT_Long size,
+ void* *P,
+ const char* file_name,
+ FT_Long line_no );
+
+ FT_BASE( FT_Error )
+ FT_QAlloc_Debug( FT_Memory memory,
+ FT_Long size,
+ void* *P,
+ const char* file_name,
+ FT_Long line_no );
+
+ FT_BASE( FT_Error )
+ FT_Realloc_Debug( FT_Memory memory,
+ FT_Long current,
+ FT_Long size,
+ void* *P,
+ const char* file_name,
+ FT_Long line_no );
+
+ FT_BASE( FT_Error )
+ FT_QRealloc_Debug( FT_Memory memory,
+ FT_Long current,
+ FT_Long size,
+ void* *P,
+ const char* file_name,
+ FT_Long line_no );
+
+ FT_BASE( void )
+ FT_Free_Debug( FT_Memory memory,
+ FT_Pointer block,
+ const char* file_name,
+ FT_Long line_no );
+
+#endif
+
+
+ /*************************************************************************/
+ /* */
+ /* <Function> */
+ /* FT_Alloc */
+ /* */
+ /* <Description> */
+ /* Allocates a new block of memory. The returned area is always */
+ /* zero-filled; this is a strong convention in many FreeType parts. */
+ /* */
+ /* <Input> */
+ /* memory :: A handle to a given `memory object' which handles */
+ /* allocation. */
+ /* */
+ /* size :: The size in bytes of the block to allocate. */
+ /* */
+ /* <Output> */
+ /* P :: A pointer to the fresh new block. It should be set to */
+ /* NULL if `size' is 0, or in case of error. */
+ /* */
+ /* <Return> */
+ /* FreeType error code. 0 means success. */
+ /* */
+ FT_BASE( FT_Error )
+ FT_Alloc( FT_Memory memory,
+ FT_Long size,
+ void* *P );
+
+
+ FT_BASE( FT_Error )
+ FT_QAlloc( FT_Memory memory,
+ FT_Long size,
+ void* *p );
+
+
+ /*************************************************************************/
+ /* */
+ /* <Function> */
+ /* FT_Realloc */
+ /* */
+ /* <Description> */
+ /* Reallocates a block of memory pointed to by `*P' to `Size' bytes */
+ /* from the heap, possibly changing `*P'. */
+ /* */
+ /* <Input> */
+ /* memory :: A handle to a given `memory object' which handles */
+ /* reallocation. */
+ /* */
+ /* current :: The current block size in bytes. */
+ /* */
+ /* size :: The new block size in bytes. */
+ /* */
+ /* <InOut> */
+ /* P :: A pointer to the fresh new block. It should be set to */
+ /* NULL if `size' is 0, or in case of error. */
+ /* */
+ /* <Return> */
+ /* FreeType error code. 0 means success. */
+ /* */
+ /* <Note> */
+ /* All callers of FT_Realloc() _must_ provide the current block size */
+ /* as well as the new one. */
+ /* */
+ FT_BASE( FT_Error )
+ FT_Realloc( FT_Memory memory,
+ FT_Long current,
+ FT_Long size,
+ void* *P );
+
+
+ FT_BASE( FT_Error )
+ FT_QRealloc( FT_Memory memory,
+ FT_Long current,
+ FT_Long size,
+ void* *p );
+
+
+ /*************************************************************************/
+ /* */
+ /* <Function> */
+ /* FT_Free */
+ /* */
+ /* <Description> */
+ /* Releases a given block of memory allocated through FT_Alloc(). */
+ /* */
+ /* <Input> */
+ /* memory :: A handle to a given `memory object' which handles */
+ /* memory deallocation */
+ /* */
+ /* P :: This is the _address_ of a _pointer_ which points to the */
+ /* allocated block. It is always set to NULL on exit. */
+ /* */
+ /* <Note> */
+ /* If P or *P is NULL, this function should return successfully. */
+ /* This is a strong convention within all of FreeType and its */
+ /* drivers. */
+ /* */
+ FT_BASE( void )
+ FT_Free( FT_Memory memory,
+ void* *P );
+
+
+#define FT_MEM_SET( dest, byte, count ) ft_memset( dest, byte, count )
+
+#define FT_MEM_COPY( dest, source, count ) ft_memcpy( dest, source, count )
+
+#define FT_MEM_MOVE( dest, source, count ) ft_memmove( dest, source, count )
+
+
+#define FT_MEM_ZERO( dest, count ) FT_MEM_SET( dest, 0, count )
+
+#define FT_ZERO( p ) FT_MEM_ZERO( p, sizeof ( *(p) ) )
+
+#define FT_ARRAY_COPY( dest, source, count ) \
+ FT_MEM_COPY( dest, source, (count) * sizeof( *(dest) ) )
+
+#define FT_ARRAY_MOVE( dest, source, count ) \
+ FT_MEM_MOVE( dest, source, (count) * sizeof( *(dest) ) )
+
+
+ /*************************************************************************/
+ /* */
+ /* We first define FT_MEM_ALLOC, FT_MEM_REALLOC, and FT_MEM_FREE. All */
+ /* macros use an _implicit_ `memory' parameter to access the current */
+ /* memory allocator. */
+ /* */
+
+#ifdef FT_DEBUG_MEMORY
+
+#define FT_MEM_ALLOC( _pointer_, _size_ ) \
+ FT_Alloc_Debug( memory, _size_, \
+ (void**)&(_pointer_), __FILE__, __LINE__ )
+
+#define FT_MEM_REALLOC( _pointer_, _current_, _size_ ) \
+ FT_Realloc_Debug( memory, _current_, _size_, \
+ (void**)&(_pointer_), __FILE__, __LINE__ )
+
+#define FT_MEM_QALLOC( _pointer_, _size_ ) \
+ FT_QAlloc_Debug( memory, _size_, \
+ (void**)&(_pointer_), __FILE__, __LINE__ )
+
+#define FT_MEM_QREALLOC( _pointer_, _current_, _size_ ) \
+ FT_QRealloc_Debug( memory, _current_, _size_, \
+ (void**)&(_pointer_), __FILE__, __LINE__ )
+
+#define FT_MEM_FREE( _pointer_ ) \
+ FT_Free_Debug( memory, (void**)&(_pointer_), __FILE__, __LINE__ )
+
+
+#else /* !FT_DEBUG_MEMORY */
+
+
+#define FT_MEM_ALLOC( _pointer_, _size_ ) \
+ FT_Alloc( memory, _size_, (void**)&(_pointer_) )
+
+#define FT_MEM_FREE( _pointer_ ) \
+ FT_Free( memory, (void**)&(_pointer_) )
+
+#define FT_MEM_REALLOC( _pointer_, _current_, _size_ ) \
+ FT_Realloc( memory, _current_, _size_, (void**)&(_pointer_) )
+
+#define FT_MEM_QALLOC( _pointer_, _size_ ) \
+ FT_QAlloc( memory, _size_, (void**)&(_pointer_) )
+
+#define FT_MEM_QREALLOC( _pointer_, _current_, _size_ ) \
+ FT_QRealloc( memory, _current_, _size_, (void**)&(_pointer_) )
+
+#endif /* !FT_DEBUG_MEMORY */
+
+
+ /*************************************************************************/
+ /* */
+ /* The following functions macros expect that their pointer argument is */
+ /* _typed_ in order to automatically compute array element sizes. */
+ /* */
+
+#define FT_MEM_NEW( _pointer_ ) \
+ FT_MEM_ALLOC( _pointer_, sizeof ( *(_pointer_) ) )
+
+#define FT_MEM_NEW_ARRAY( _pointer_, _count_ ) \
+ FT_MEM_ALLOC( _pointer_, (_count_) * sizeof ( *(_pointer_) ) )
+
+#define FT_MEM_RENEW_ARRAY( _pointer_, _old_, _new_ ) \
+ FT_MEM_REALLOC( _pointer_, (_old_) * sizeof ( *(_pointer_) ), \
+ (_new_) * sizeof ( *(_pointer_) ) )
+
+#define FT_MEM_QNEW( _pointer_ ) \
+ FT_MEM_QALLOC( _pointer_, sizeof ( *(_pointer_) ) )
+
+#define FT_MEM_QNEW_ARRAY( _pointer_, _count_ ) \
+ FT_MEM_QALLOC( _pointer_, (_count_) * sizeof ( *(_pointer_) ) )
+
+#define FT_MEM_QRENEW_ARRAY( _pointer_, _old_, _new_ ) \
+ FT_MEM_QREALLOC( _pointer_, (_old_) * sizeof ( *(_pointer_) ), \
+ (_new_) * sizeof ( *(_pointer_) ) )
+
+
+ /*************************************************************************/
+ /* */
+ /* the following macros are obsolete but kept for compatibility reasons */
+ /* */
+
+#define FT_MEM_ALLOC_ARRAY( _pointer_, _count_, _type_ ) \
+ FT_MEM_ALLOC( _pointer_, (_count_) * sizeof ( _type_ ) )
+
+#define FT_MEM_REALLOC_ARRAY( _pointer_, _old_, _new_, _type_ ) \
+ FT_MEM_REALLOC( _pointer_, (_old_) * sizeof ( _type ), \
+ (_new_) * sizeof ( _type_ ) )
+
+
+ /*************************************************************************/
+ /* */
+ /* The following macros are variants of their FT_MEM_XXXX equivalents; */
+ /* they are used to set an _implicit_ `error' variable and return TRUE */
+ /* if an error occured (i.e. if 'error != 0'). */
+ /* */
+
+#define FT_ALLOC( _pointer_, _size_ ) \
+ FT_SET_ERROR( FT_MEM_ALLOC( _pointer_, _size_ ) )
+
+#define FT_REALLOC( _pointer_, _current_, _size_ ) \
+ FT_SET_ERROR( FT_MEM_REALLOC( _pointer_, _current_, _size_ ) )
+
+#define FT_FREE( _pointer_ ) \
+ FT_MEM_FREE( _pointer_ )
+
+#define FT_QALLOC( _pointer_, _size_ ) \
+ FT_SET_ERROR( FT_MEM_QALLOC( _pointer_, _size_ ) )
+
+#define FT_QREALLOC( _pointer_, _current_, _size_ ) \
+ FT_SET_ERROR( FT_MEM_QREALLOC( _pointer_, _current_, _size_ ) )
+
+
+#define FT_NEW( _pointer_ ) \
+ FT_SET_ERROR( FT_MEM_NEW( _pointer_ ) )
+
+#define FT_NEW_ARRAY( _pointer_, _count_ ) \
+ FT_SET_ERROR( FT_MEM_NEW_ARRAY( _pointer_, _count_ ) )
+
+#define FT_RENEW_ARRAY( _pointer_, _old_, _new_ ) \
+ FT_SET_ERROR( FT_MEM_RENEW_ARRAY( _pointer_, _old_, _new_ ) )
+
+#define FT_QNEW( _pointer_ ) \
+ FT_SET_ERROR( FT_MEM_QNEW( _pointer_ ) )
+
+#define FT_QNEW_ARRAY( _pointer_, _count_ ) \
+ FT_SET_ERROR( FT_MEM_QNEW_ARRAY( _pointer_, _count_ ) )
+
+#define FT_QRENEW_ARRAY( _pointer_, _old_, _new_ ) \
+ FT_SET_ERROR( FT_MEM_QRENEW_ARRAY( _pointer_, _old_, _new_ ) )
+
+
+#define FT_ALLOC_ARRAY( _pointer_, _count_, _type_ ) \
+ FT_SET_ERROR( FT_MEM_ALLOC( _pointer_, \
+ (_count_) * sizeof ( _type_ ) ) )
+
+#define FT_REALLOC_ARRAY( _pointer_, _old_, _new_, _type_ ) \
+ FT_SET_ERROR( FT_MEM_REALLOC( _pointer_, \
+ (_old_) * sizeof ( _type_ ), \
+ (_new_) * sizeof ( _type_ ) ) )
+
+ /* */
+
+
+FT_END_HEADER
+
+#endif /* __FTMEMORY_H__ */
+
+
+/* END */
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