doom3-bfg/neo/idlib/Heap.cpp

/*
===========================================================================

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.

===========================================================================
*/

#pragma hdrstop
#include "../idlib/precompiled.h"

//===============================================================
//
//	memory allocation all in one place
//
//===============================================================
#include <malloc.h>
#undef new

/*
==================
Mem_Alloc16
==================
*/
void* Mem_Alloc16( const int size, const memTag_t tag )
{
	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 int 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;
}