/* 
* PROJECT: NyARToolkitCPP
* --------------------------------------------------------------------------------
*
* The NyARToolkitCPP is C++ version NyARToolkit 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>
* 
*/

#pragma once
#include "NyARException.h"
#include "NyAR_types.h"
#include "INyARRgbPixelReader.h"
#include "NyARBufferReader.h"
#include "NyARRgbRaster_BasicClass.h"

namespace NyARToolkitCPP
{
	class NyARRgbRaster_BGRA:public NyARRgbRaster_BasicClass
	{
	protected:
		class PixelReader : public INyARRgbPixelReader
		{
		private:
			const NyARRgbRaster_BGRA* _parent;

		public:
			PixelReader(const NyARRgbRaster_BGRA* i_parent)
			{
				this->_parent = i_parent;
			}
			void getPixel(int i_x, int i_y, int* o_rgb)const
			{
				const NyAR_BYTE_t* ref_buf = this->_parent->_ref_buf;
				int bp = (i_x + i_y * this->_parent->_size.w) * 4;
				o_rgb[0] = (ref_buf[bp + 2] & 0xff);// R
				o_rgb[1] = (ref_buf[bp + 1] & 0xff);// G
				o_rgb[2] = (ref_buf[bp + 0] & 0xff);// B
				return;
			}
			void getPixelSet(const int* i_x, const int* i_y, int i_num, int* o_rgb)const
			{
				const int width = _parent->_size.w;
				const NyAR_BYTE_t* ref_buf = _parent->_ref_buf;
				int bp;
				for (int i = i_num - 1; i >= 0; i--) {
					bp = (i_x[i] + i_y[i] * width) * 4;
					o_rgb[i * 3 + 0] = (ref_buf[bp + 2] & 0xff);// R
					o_rgb[i * 3 + 1] = (ref_buf[bp + 1] & 0xff);// G
					o_rgb[i * 3 + 2] = (ref_buf[bp + 0] & 0xff);// B
				}
				return;
			}
			void setPixel(int i_x, int i_y, const int* i_rgb)
			{
				NyARException::notImplement();
			}
			void setPixels(const int* i_x, const int* i_y, int i_num, const int* i_intrgb)
			{
				NyARException::notImplement();
			}
		};
	protected:
		INyARRgbPixelReader* _rgb_reader;
		NyARBufferReader* _buffer_reader;
		const NyAR_BYTE_t* _ref_buf;
	public:
		//i_bufferをラップするラスタを作る。
		NyARRgbRaster_BGRA(const NyAR_BYTE_t* i_buffer,int i_width, int i_height);
	public:
		virtual ~NyARRgbRaster_BGRA();
	public:
		const INyARRgbPixelReader& getRgbPixelReader()const;
		const INyARBufferReader& getBufferReader()const;
	};
}
