doom3-bfg/neo/idlib/Heap.cpp

112 lines
3.1 KiB
C++

/*
===========================================================================
Doom 3 BFG Edition GPL Source Code
Copyright (C) 1993-2012 id Software LLC, a ZeniMax Media company.
Copyright (C) 2012 Robert Beckebans
Copyright (C) 2012 Daniel Gibson
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.
===========================================================================
*/
#pragma hdrstop
#include "precompiled.h"
//===============================================================
//
// memory allocation all in one place
//
//===============================================================
#include <malloc.h>
#undef new
/*
==================
Mem_Alloc16
==================
*/
// RB: 64 bit fixes, changed int to size_t
void* Mem_Alloc16( const size_t size, const memTag_t tag )
// RB end
{
if( !size )
{
return NULL;
}
const int paddedSize = ( size + 15 ) & ~15;
#ifdef _WIN32
// this should work with MSVC and mingw, as long as __MSVCRT_VERSION__ >= 0x0700
return _aligned_malloc( paddedSize, 16 );
#else // not _WIN32
// DG: the POSIX solution for linux etc
void* ret;
posix_memalign( &ret, 16, paddedSize );
return ret;
// DG end
#endif // _WIN32
}
/*
==================
Mem_Free16
==================
*/
void Mem_Free16( void* ptr )
{
if( ptr == NULL )
{
return;
}
#ifdef _WIN32
_aligned_free( ptr );
#else // not _WIN32
// DG: Linux/POSIX compatibility
// can use normal free() for aligned memory
free( ptr );
// DG end
#endif // _WIN32
}
/*
==================
Mem_ClearedAlloc
==================
*/
void* Mem_ClearedAlloc( const size_t size, const memTag_t tag )
{
void* mem = Mem_Alloc( size, tag );
SIMDProcessor->Memset( mem, 0, size );
return mem;
}
/*
==================
Mem_CopyString
==================
*/
char* Mem_CopyString( const char* in )
{
char* out = ( char* )Mem_Alloc( strlen( in ) + 1, TAG_STRING );
strcpy( out, in );
return out;
}