/*

 * pixmap.h: 2D image class

 *

 * This file is part of Pyrit Ray Tracer.

 *

 * Copyright 2008  Radek Brich

 *

 * Permission is hereby granted, free of charge, to any person obtaining a copy

 * of this software and associated documentation files (the "Software"), to deal

 * in the Software without restriction, including without limitation the rights

 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell

 * copies of the Software, and to permit persons to whom the Software is

 * furnished to do so, subject to the following conditions:

 *

 * The above copyright notice and this permission notice shall be included in

 * all copies or substantial portions of the Software.

 *

 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR

 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE

 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER

 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,

 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN

 * THE SOFTWARE.

 */

#ifndef PIXMAP_H

#define PIXMAP_H

#include "common.h"

#include "vector.h"

/**

 * 2D pixmap

 */

class Pixmap

{

	union

	{

		Colour *data;

		Float *fdata;

	};

	int w,h;

	bool refdata;

public:

	Pixmap(): data(NULL), w(0), h(0), refdata(true) {};

	Pixmap(Float *afdata, int aw, int ah):

		fdata(afdata), w(aw), h(ah), refdata(true) {};

	Pixmap(int aw, int ah):

		data(new Colour[aw*ah]), w(aw), h(ah), refdata(false) {};

	virtual ~Pixmap() { if (!refdata) delete[] data; };

	void setData(Float *afdata, int aw, int ah)

		{ fdata = afdata; w = aw; h = ah; };

	Colour get(int x, int y) { return data[y*w + x]; };

	Float*& getFloatData() { return fdata; };

	unsigned char *getCharData() const;

	int writePNG(const char *fname) const;

};

#endif