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/*
* Copyright (C) 1998-2004 David Turner and Werner Lemberg
* Copyright (C) 2006 Behdad Esfahbod
*
* This is part of HarfBuzz, an OpenType Layout engine library.
*
* Permission is hereby granted, without written agreement and without
* license or royalty fees, to use, copy, modify, and distribute this
* software and its documentation for any purpose, provided that the
* above copyright notice and the following two paragraphs appear in
* all copies of this software.
*
* IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
* DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
* ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
* IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
* DAMAGE.
*
* THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
* BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
* FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
* ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
* PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
*/
#ifndef HARFBUZZ_IMPL_H
#define HARFBUZZ_IMPL_H
#include "harfbuzz-global.h"
#include <stdlib.h>
HB_BEGIN_HEADER
#ifndef HB_INTERNAL
# define HB_INTERNAL
#endif
#ifndef NULL
# define NULL ((void *)0)
#endif
#ifndef FALSE
# define FALSE 0
#endif
#ifndef TRUE
# define TRUE 1
#endif
#ifndef TTAG_GDEF
# define TTAG_GDEF HB_MAKE_TAG( 'G', 'D', 'E', 'F' )
#endif
#ifndef TTAG_GPOS
# define TTAG_GPOS HB_MAKE_TAG( 'G', 'P', 'O', 'S' )
#endif
#ifndef TTAG_GSUB
# define TTAG_GSUB HB_MAKE_TAG( 'G', 'S', 'U', 'B' )
#endif
#ifndef HB_UNUSED
# define HB_UNUSED(arg) ((void)(arg))
#endif
#define HB_LIKELY(cond) (cond)
#define HB_UNLIKELY(cond) (cond)
#define ARRAY_LEN(Array) ((int)(sizeof (Array) / sizeof (Array)[0]))
#define HB_IsHighSurrogate(ucs) \
(((ucs) & 0xfc00) == 0xd800)
#define HB_IsLowSurrogate(ucs) \
(((ucs) & 0xfc00) == 0xdc00)
#define HB_SurrogateToUcs4(high, low) \
(((HB_UChar32)(high))<<10) + (low) - 0x35fdc00;
#define ALLOC(_ptr,_size) \
( (_ptr) = _hb_alloc( _size, &error ), error != 0 )
#define REALLOC(_ptr,_newsz) \
( (_ptr) = _hb_realloc( (_ptr), (_newsz), &error ), error != 0 )
#define FREE(_ptr) \
do { \
if ( (_ptr) ) \
{ \
_hb_free( _ptr ); \
_ptr = NULL; \
} \
} while (0)
#define ALLOC_ARRAY(_ptr,_count,_type) \
ALLOC(_ptr,(_count)*sizeof(_type))
#define REALLOC_ARRAY(_ptr,_newcnt,_type) \
REALLOC(_ptr,(_newcnt)*sizeof(_type))
#define MEM_Copy(dest,source,count) memcpy( (char*)(dest), (const char*)(source), (size_t)(count) )
#define ERR(err) _hb_err (err)
HB_INTERNAL HB_Pointer
_hb_alloc( size_t size,
HB_Error *perror_ );
HB_INTERNAL HB_Pointer
_hb_realloc( HB_Pointer block,
size_t new_size,
HB_Error *perror_ );
HB_INTERNAL void
_hb_free( HB_Pointer block );
/* helper func to set a breakpoint on */
HB_INTERNAL HB_Error
_hb_err (HB_Error code);
HB_END_HEADER
#endif /* HARFBUZZ_IMPL_H */
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