/* 
 * PROJECT: NyARToolkit(Extension)
 * --------------------------------------------------------------------------------
 * The NyARToolkit is Java edition ARToolKit class library.
 * Copyright (C)2008-2009 Ryo Iizuka
 *
 * 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 3 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, see <http://www.gnu.org/licenses/>.
 * 
 * For further information please contact.
 *	http://nyatla.jp/nyatoolkit/
 *	<airmail(at)ebony.plala.or.jp> or <nyatla(at)nyatla.jp>
 * 
 */
package jp.nyatla.nyartoolkit.core.rasterfilter.gs;

import jp.nyatla.nyartoolkit.core.NyARException;
import jp.nyatla.nyartoolkit.core.pixeldriver.INyARGsPixelDriver;
import jp.nyatla.nyartoolkit.core.raster.*;
import jp.nyatla.nyartoolkit.core.types.*;


/**
 * このインタフェイスは、ネガポジ反転機能を提供します。
 * <p>対応している画素形式は以下の通りです。
 * <li>{@link NyARBufferType#INT1D_GRAY_8}
 * </p>
 */
public interface INyARGsReverseFilter
{
	public void doFilter(INyARGrayscaleRaster i_output) throws NyARException;
}
class NyARGsReverseFilter_Any implements INyARGsReverseFilter
{
	private INyARGrayscaleRaster _raster;
	public NyARGsReverseFilter_Any(INyARGrayscaleRaster i_raster)
	{
		this._raster=i_raster;
	}
	public final void doFilter(INyARGrayscaleRaster i_output) throws NyARException
	{
		INyARGsPixelDriver ind=this._raster.getGsPixelDriver();
		INyARGsPixelDriver outd=i_output.getGsPixelDriver();
		NyARIntSize s=this._raster.getSize();
		for(int y=s.h-1;y>=0;y--){
			for(int x=s.w-1;x>=0;x--){
				outd.setPixel(x,y,255-ind.getPixel(x,y));
			}
		}
	}	
}