/* Copyright (C) 1994-2003 Revolution Software Ltd
 *
 * 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., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 *
 * $Header: /cvsroot/scummvm/scummvm/bs2/memory.h,v 1.1 2003/07/28 01:44:38 khalek Exp $
 */

#ifndef	MEMORY_H
#define	MEMORY_H

#include "common/scummsys.h"
//#include "src\driver96.h"


typedef	struct
{
	uint32	state;
	uint32	age;	// *not used*
	uint32	size;
	int32	parent;	//who is before us
	int32	child;	//who is after us
	uint32	uid;	//id of a position in the resList or some other unique id - for the visual display only
	uint8	*ad;
} mem;


#define	MEM_null	0	//null
#define	MEM_free	1
#define	MEM_locked	2
#define	MEM_float	3

//---------------------------------------
// MEMORY BLOCKS

#define	MAX_mem_blocks	999

// maintain at a good 50% higher than the
// highest recorded value from the on-screen info
//---------------------------------------

#define	UID_memman					0xffffffff
#define	UID_NULL					0xfffffffe			//FREE
#define	UID_font					0xfffffffd
#define	UID_temp					0xfffffffc
#define	UID_decompression_buffer	0xfffffffb
#define	UID_shrink_buffer			0xfffffffa
#define	UID_con_sprite				0xfffffff9
#define	UID_text_sprite				0xfffffff8
#define	UID_walk_anim				0xfffffff7
#define	UID_savegame_buffer			0xfffffff6
#define UID_restoregame_buffer		0xfffffff5

void	Init_memory_manager(void);
void	Close_memory_manager(void);	//Tony2Oct96
//mem	*Talloc(uint32	size,	uint32	type,	uint32	unique_id);	//low level
mem	*Twalloc(uint32	size,	uint32	type,	uint32	unique_id);	//high level
void	Free_mem(mem	*block);
void	Float_mem(mem	*block);
void	Lock_mem(mem	*block);
void	Mem_debug(void);
void	Visual_mem_display(void);
int32	Defrag_mem(uint32	req_size);	//Tony10Apr96


extern	uint32	total_blocks;
extern	uint32	base_mem_block;
extern	mem	mem_list[MAX_mem_blocks];
extern	uint32	total_free_memory;

#endif
