/* 
 * PROJECT: NyARToolkitCS
 * --------------------------------------------------------------------------------
 * This work is based on the original ARToolKit developed by
 *   Hirokazu Kato
 *   Mark Billinghurst
 *   HITLab, University of Washington, Seattle
 * http://www.hitl.washington.edu/artoolkit/
 *
 * The NyARToolkitCS is C# 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>
 * 
 */
using System;
using System.Collections.Generic;
using System.Text;
using System.Diagnostics;

namespace jp.nyatla.nyartoolkit.cs.core
{
    public class NyARRgbPixelReader_INT1D_X8R8G8B8_32 : INyARRgbPixelReader
    {
	    protected int[] _ref_buf;

	    private NyARIntSize _size;

	    public NyARRgbPixelReader_INT1D_X8R8G8B8_32(int[] i_buf, NyARIntSize i_size)
	    {
		    this._ref_buf = i_buf;
		    this._size = i_size;
	    }

	    public void getPixel(int i_x, int i_y, int[] o_rgb)
	    {
		    int rgb= this._ref_buf[i_x + i_y * this._size.w];
		    o_rgb[0] = (rgb>>16)&0xff;// R
		    o_rgb[1] = (rgb>>8)&0xff;// G
		    o_rgb[2] = rgb&0xff;// B
		    return;
	    }

	    public void getPixelSet(int[] i_x, int[] i_y, int i_num, int[] o_rgb)
	    {
		    int width = this._size.w;
		    int[] ref_buf = this._ref_buf;
		    for (int i = i_num - 1; i >= 0; i--){
			    int rgb=ref_buf[i_x[i] + i_y[i] * width];
			    o_rgb[i * 3 + 0] = (rgb>>16)&0xff;// R
			    o_rgb[i * 3 + 1] = (rgb>>8)&0xff;// G
			    o_rgb[i * 3 + 2] = rgb&0xff;// B
		    }
		    return;
	    }
	    public void setPixel(int i_x, int i_y, int[] i_rgb)
	    {
		    this._ref_buf[i_x + i_y * this._size.w]=((i_rgb[0]<<16)&0xff)|((i_rgb[1]<<8)&0xff)|((i_rgb[2])&0xff);
	    }
	    public void setPixels(int[] i_x, int[] i_y, int i_num, int[] i_intrgb)
	    {
		    NyARException.notImplement();		
	    }
	    public void switchBuffer(Object i_ref_buffer)
	    {
		    Debug.Assert(((int[])i_ref_buffer).Length>=this._size.w*this._size.h);
		    this._ref_buf=(int[])i_ref_buffer;
	    }	
    }

}
