Quake-III-Arena

Quake III Arena GPL Source Release
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g_mem.c (1680B)

      1 /*
      2 ===========================================================================
      3 Copyright (C) 1999-2005 Id Software, Inc.
      4 
      5 This file is part of Quake III Arena source code.
      6 
      7 Quake III Arena source code is free software; you can redistribute it
      8 and/or modify it under the terms of the GNU General Public License as
      9 published by the Free Software Foundation; either version 2 of the License,
     10 or (at your option) any later version.
     11 
     12 Quake III Arena source code is distributed in the hope that it will be
     13 useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
     14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     15 GNU General Public License for more details.
     16 
     17 You should have received a copy of the GNU General Public License
     18 along with Foobar; if not, write to the Free Software
     19 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
     20 ===========================================================================
     21 */
     22 //
     23 //
     24 // g_mem.c
     25 //
     26 
     27 
     28 #include "g_local.h"
     29 
     30 
     31 #define POOLSIZE	(256 * 1024)
     32 
     33 static char		memoryPool[POOLSIZE];
     34 static int		allocPoint;
     35 
     36 void *G_Alloc( int size ) {
     37 	char	*p;
     38 
     39 	if ( g_debugAlloc.integer ) {
     40 		G_Printf( "G_Alloc of %i bytes (%i left)\n", size, POOLSIZE - allocPoint - ( ( size + 31 ) & ~31 ) );
     41 	}
     42 
     43 	if ( allocPoint + size > POOLSIZE ) {
     44 	  G_Error( "G_Alloc: failed on allocation of %i bytes\n", size ); // bk010103 - was %u, but is signed
     45 		return NULL;
     46 	}
     47 
     48 	p = &memoryPool[allocPoint];
     49 
     50 	allocPoint += ( size + 31 ) & ~31;
     51 
     52 	return p;
     53 }
     54 
     55 void G_InitMemory( void ) {
     56 	allocPoint = 0;
     57 }
     58 
     59 void Svcmd_GameMem_f( void ) {
     60 	G_Printf( "Game memory status: %i out of %i bytes allocated\n", allocPoint, POOLSIZE );
     61 }