80 lines
3.4 KiB
C
Executable File
80 lines
3.4 KiB
C
Executable File
/*
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Copyright (C) 1994-1995 Apogee Software, Ltd.
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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//***************************************************************************
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//
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// Z_Zone Memory management Constants
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//
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//***************************************************************************
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#ifndef _z_zone_public
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#define _z_zone_public
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extern int lowmemory;
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// tags < 100 are not overwritten until freed
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#define PU_STATIC 1 // static entire execution time
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#define PU_GAME 20 // static until game completed
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#define PU_LEVELSTRUCT 49 // start of static until level exited
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#define PU_LEVEL 50 // start of static until level exited
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#define PU_LEVELEND 51 // end of static until level exited
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// tags >= 100 are purgable whenever needed
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#define PU_PURGELEVEL 100
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#define PU_CACHE 101
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#define PU_CACHEWALLS 155
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#define PU_CACHESPRITES 154
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#define PU_CACHEBJWEAP 153
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#define PU_CACHEACTORS 152
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#define PU_CACHESOUNDS 120
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#define PU_FLAT 102
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#define PU_PATCH 103
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#define PU_TEXTURE 104
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#define URGENTLEVELSTART PU_LEVEL
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//***************************************************************************
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//
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// Z_ZONE.C - Carmack's Memory manager for protected mode
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//
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//***************************************************************************
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extern int zonememorystarted;
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void Z_Init (int size, int min); // Starts up Memory manager (size is in bytes), (min is minimum requirement)
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void Z_Free (void *ptr); // Free a pointer in Z_Zone's domain
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void *Z_Malloc (int size, int tag, void *user); // Malloc You can pass a NULL user if the tag is < PU_PURGELEVEL
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void *Z_LevelMalloc (int size, int tag, void *user); // Level Malloc for level structures
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void Z_FreeTags (int lowtag, int hightag); // Free a series of memory tags
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void Z_DumpHeap (int lowtag, int hightag); // Dump the heap (for debugging purposes)
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void Z_CheckHeap (void); // Check the heap for corruption
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void Z_ChangeTag (void *ptr, int tag); // Change the tag of a memory item
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int Z_HeapSize ( void ); // Return the total heap size
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int Z_UsedHeap ( void ); // Return used portion of heap size
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int Z_AvailHeap ( void ); // Returns largest available contiguous block
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int Z_UsedStaticHeap ( void ); // Returns amount of heap which is static ( < PURGELEVEL )
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void Z_ShutDown( void );
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int Z_GetSize (void *ptr);
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int Z_UsedLevelHeap ( void );
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void Z_Realloc (void ** ptr, int newsize);
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#endif
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