1 /*

     2  * pixmap.h: 2D image class

     3  *

     4  * This file is part of Pyrit Ray Tracer.

     5  *

     6  * Copyright 2008  Radek Brich

     7  *

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

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

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

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

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

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

    14  *

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

    16  * all copies or substantial portions of the Software.

    17  *

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

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

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

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

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

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

    24  * THE SOFTWARE.

    25  */

    26 

    27 #ifndef PIXMAP_H

    28 #define PIXMAP_H

    29 

    30 #include "common.h"

    31 #include "vector.h"

    32 

    33 /**

    34  * 2D pixmap

    35  */

    36 class Pixmap

    37 {

    38 	union

    39 	{

    40 		Colour *data;

    41 		Float *fdata;

    42 	};

    43 	int w,h;

    44 	bool refdata;

    45 public:

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

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

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

    49 	Pixmap(int aw, int ah):

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

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

    52 

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

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

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

    56 	const int &getWidth() { return w; };

    57 	const int &getHeight() { return h; };

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

    59 	unsigned char *getCharData() const;

    60 	int writePNG(const char *fname) const;

    61 };

    62 

    63 #endif