doom3-bfg/doomclassic/doom/z_zone.h
2012-11-26 12:58:24 -06:00

113 lines
3.9 KiB
C++

/*
===========================================================================
Doom 3 BFG Edition GPL Source Code
Copyright (C) 1993-2012 id Software LLC, a ZeniMax Media company.
This file is part of the Doom 3 BFG Edition GPL Source Code ("Doom 3 BFG Edition Source Code").
Doom 3 BFG Edition Source Code 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 3 of the License, or
(at your option) any later version.
Doom 3 BFG Edition Source Code 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 Doom 3 BFG Edition Source Code. If not, see <http://www.gnu.org/licenses/>.
In addition, the Doom 3 BFG Edition Source Code is also subject to certain additional terms. You should have received a copy of these additional terms immediately following the terms and conditions of the GNU General Public License which accompanied the Doom 3 BFG Edition Source Code. If not, please request a copy in writing from id Software at the address below.
If you have questions concerning this license or the applicable additional terms, you may contact in writing id Software LLC, c/o ZeniMax Media Inc., Suite 120, Rockville, Maryland 20850 USA.
===========================================================================
*/
#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_LEVEL 50 // static until level exited
#define PU_LEVSPEC 51 // a special thinker in a level
// Tags >= 100 are purgable whenever needed.
#define PU_PURGELEVEL 100
#define PU_CACHE 101
/*
#define PU_STATIC_SHARED 4 // static entire execution time
#define PU_SOUND_SHARED 5 // static while playing
#define PU_MUSIC_SHARED 6 // static while playing
#define PU_LEVEL_SHARED 52 // static until level exited
#define PU_LEVSPEC_SHARED 53 // a special thinker in a level
#define PU_CACHE_SHARED 102
*/
#define PU_STATIC_SHARED PU_STATIC // static entire execution time
#define PU_SOUND_SHARED PU_SOUND // static while playing
#define PU_MUSIC_SHARED PU_MUSIC // static while playing
#define PU_LEVEL_SHARED PU_LEVEL // static until level exited
#define PU_LEVSPEC_SHARED PU_LEVSPEC // a special thinker in a level
#define PU_CACHE_SHARED PU_CACHE
bool Z_IsStatic( int tag );
void Z_Init (void);
void* Z_Malloc (int size, int tag, void *ptr);
void Z_Free (void *ptr);
void Z_FreeTag(int lowtag );
void Z_FreeTags(int lowtag, int hightag );
void Z_DumpHeap (int lowtag, int hightag);
void Z_FileDumpHeap (FILE *f);
void Z_CheckHeap (void);
void Z_ChangeTag2 (void **ptr, int tag);
int Z_FreeMemory (void);
//bool MallocForLump( int lump, size_t size, void **ptr, int tag );
template< class _type_ >
bool MallocForLump( int lump, size_t size, _type_ * & ptr, int tag ) {
ptr = static_cast< _type_ * >( Z_Malloc( size, tag, 0 ) );
return true;
}
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
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.
//
#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((void**)&p,t); \
};
#endif