/******************************************************************************
	libx42.net - skinned vertex animation library (.NET API)
	Copyright (C) 2007 HermitWorks Entertainment Corporation

	This program 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 2 of the License, or (at your option)
	any later version.

	This program 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 this program; if not, write to the
	
		Free Software Foundation, Inc.
		51 Franklin Street, Fifth Floor
		Boston, MA  02110-1301, USA.
******************************************************************************/

#include "Stdafx.h"
#include "DataStream.h"

#include "Model.h"
#include "UtilTypes.h"

namespace Libx42
{

generic< typename T >
void DataStream< T >::CopyToBuffer( int index, int count,
		IntPtr dest, int stride, int padBytes )
{
	if( index < 0 || count < 0 || index + count > this->count ||
		stride < 0 || padBytes < 0 )
		throw gcnew ArgumentOutOfRangeException();

	x42memStream_t src;
	src.pStreamZero = (Byte*)pBase + this->stride * index;
	src.stride = this->stride;
	src.scratchBytes = this->padBytes;

	x42memStream_t dst;
	dst.pStreamZero = dest.ToPointer();
	dst.stride = (size_t)stride;
	dst.scratchBytes = (size_t)padBytes;

	if( !x42_CopyStreamToStream( &dst, &src, sizeof( T ), count, owner->Opts->opts ) )
		throw gcnew Exception( "Failed to copy stream data." );
}

}