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// Emacs style mode select -*- C++ -*-
//-----------------------------------------------------------------------------
//
// $Id: z_zone.h,v 1.9 2001/03/13 22:14:20 stroggonmeth Exp $
//
// Copyright (C) 1993-1996 by id Software, Inc.
// Portions Copyright (C) 1998-2000 by DooM Legacy Team.
//
// 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.
//
//
// $Log: z_zone.h,v $
// Revision 1.9 2001/03/13 22:14:20 stroggonmeth
// Long time no commit. 3D floors, FraggleScript, portals, ect.
//
// Revision 1.8 2000/11/02 17:50:10 stroggonmeth
// Big 3Dfloors & FraggleScript commit!!
//
// Revision 1.7 2000/10/08 13:30:01 bpereira
// no message
//
// Revision 1.6 2000/10/04 16:19:24 hurdler
// Change all those "3dfx names" to more appropriate names
//
// Revision 1.5 2000/10/02 18:25:46 bpereira
// no message
//
// Revision 1.4 2000/07/01 09:23:49 bpereira
// no message
//
// Revision 1.3 2000/04/30 10:30:10 bpereira
// no message
//
// Revision 1.2 2000/02/27 00:42:11 hurdler
// fix CR+LF problem
//
// Revision 1.1.1.1 2000/02/22 20:32:32 hurdler
// Initial import into CVS (v1.29 pr3)
//
//
// DESCRIPTION:
// Zone Memory Allocation, perhaps NeXT ObjectiveC inspired.
// Remark: this was the only stuff that, according
// to John Carmack, might have been useful for
// Quake.
//
//---------------------------------------------------------------------
#ifndef __Z_ZONE__
#define __Z_ZONE__
#include <stdio.h>
//
// ZONE MEMORY
// PU - purge tags.
// Tags < 100 are not overwritten until freed.
#define PU_STATIC 1 // static entire execution time
#define PU_SOUND 2 // static while playing
#define PU_MUSIC 3 // static while playing
#define PU_DAVE 4 // anything else Dave wants static
#define PU_HWRPATCHINFO 5 // Hardware GlidePatch_t struct for OpenGl/Glide texture cache
#define PU_HWRPATCHCOLMIPMAP 6 // Hardware GlideMipmap_t struct colromap variation of patch
#define PU_LEVEL 50 // static until level exited
#define PU_LEVSPEC 51 // a special thinker in a level
#define PU_HWRPLANE 52
// Tags >= PU_PURGELEVEL are purgable whenever needed.
#define PU_PURGELEVEL 100
#define PU_CACHE 101
#define PU_HWRCACHE 102 // 'second-level' cache for graphics
// stored in hardware format and downloaded as needed
//#define ZDEBUG
void Z_Init (void);
void Z_FreeTags (int lowtag, int hightag);
void Z_DumpHeap (int lowtag, int hightag);
void Z_FileDumpHeap (FILE *f);
void Z_CheckHeap (int i);
void Z_ChangeTag2 (void *ptr, int tag);
// returns number of bytes allocated for one tag type
int Z_TagUsage (int tagnum);
void Z_FreeMemory (int *realfree,int *cachemem,int *usedmem,int *largefreeblock);
#ifdef ZDEBUG
#define Z_Free(p) Z_Free2(p,__FILE__,__LINE__)
void Z_Free2 (void *ptr,char *file,int line);
#define Z_Malloc(s,t,p) Z_Malloc2(s,t,p,0,__FILE__,__LINE__)
#define Z_MallocAlign(s,t,p,a) Z_Malloc2(s,t,p,a,__FILE__,__LINE__)
void* Z_Malloc2 (int size, int tag, void *ptr, int alignbits, char *file,int line);
#else
void Z_Free (void *ptr);
void* Z_MallocAlign(int size,int tag,void* user,int alignbits);
#define Z_Malloc(s,t,p) Z_MallocAlign(s,t,p,0)
#endif
char *Z_Strdup(const char *s, int tag, void **user);
typedef struct memblock_s
{
int size; // including the header and possibly tiny fragments
void** user; // NULL if a free block
int tag; // purgelevel
int id; // should be ZONEID
#ifdef ZDEBUG
char *ownerfile;
int ownerline;
#endif
struct memblock_s* next;
struct memblock_s* prev;
} memblock_t;
//
// This is used to get the local FILE:LINE info from CPP
// prior to really call the function in question.
//
#ifdef PARANOIA
#define Z_ChangeTag(p,t) \
{ \
if (( (memblock_t *)( (byte *)(p) - sizeof(memblock_t)))->id!=0x1d4a11) \
I_Error("Z_CT at "__FILE__":%i",__LINE__); \
Z_ChangeTag2(p,t); \
};
#else
#define Z_ChangeTag(p,t) Z_ChangeTag2(p,t)
#endif
#endif
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