/*
 * ***** BEGIN GPL LICENSE BLOCK *****
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 *
 * The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
 * All rights reserved.
 *
 * The Original Code is: all of this file.
 *
 * Contributor(s): none yet.
 *
 * ***** END GPL LICENSE BLOCK *****
 */

/** \file BKE_utildefines.h
 *  \ingroup bke
 *  \brief blender format specific macros
 *  \note generic defines should go in BLI_utildefines.h
 */


#ifndef __BKE_UTILDEFINES_H__
#define __BKE_UTILDEFINES_H__

#ifdef __cplusplus
extern "C" {
#endif

/* these values need to be hardcoded in structs, dna does not recognize defines */
/* also defined in DNA_space_types.h */
#ifndef FILE_MAXDIR
#define FILE_MAXDIR         768
#define FILE_MAXFILE        256
#define FILE_MAX            1024
#endif

/* this weirdo pops up in two places ... */
#if !defined(WIN32)
#  ifndef O_BINARY
#    define O_BINARY 0
#  endif
#endif

/* INTEGER CODES */
#ifdef __BIG_ENDIAN__
/* Big Endian */
#  define MAKE_ID(a, b, c, d) ( (int)(a) << 24 | (int)(b) << 16 | (c) << 8 | (d) )
#else
/* Little Endian */
#  define MAKE_ID(a, b, c, d) ( (int)(d) << 24 | (int)(c) << 16 | (b) << 8 | (a) )
#endif

#define DATA MAKE_ID('D', 'A', 'T', 'A')
#define GLOB MAKE_ID('G', 'L', 'O', 'B')

#define DNA1 MAKE_ID('D', 'N', 'A', '1')
#define TEST MAKE_ID('T', 'E', 'S', 'T') /* used as preview between 'REND' and 'GLOB' */
#define REND MAKE_ID('R', 'E', 'N', 'D')
#define USER MAKE_ID('U', 'S', 'E', 'R')

#define ENDB MAKE_ID('E', 'N', 'D', 'B')

/* Bit operations */
#define BTST(a, b)     ( ( (a) & 1 << (b) ) != 0)
#define BNTST(a, b)    ( ( (a) & 1 << (b) ) == 0)
#define BTST2(a, b, c) (BTST( (a), (b) ) || BTST( (a), (c) ) )
#define BSET(a, b)     ( (a) | 1 << (b) )
#define BCLR(a, b)     ( (a) & ~(1 << (b)) )
/* bit-row */
#define BROW(min, max)  (((max) >= 31 ? 0xFFFFFFFF : (1 << (max + 1)) - 1) - ((min) ? ((1 << (min)) - 1) : 0) )

#ifdef __cplusplus
}
#endif

#endif // __BKE_UTILDEFINES_H__