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/******************************************************************************
*
* $Id$
*
*
* Copyright (C) 1997-2006 by Dimitri van Heesch.
*
* Permission to use, copy, modify, and distribute this software and its
* documentation under the terms of the GNU General Public License is hereby
* granted. No representations are made about the suitability of this software
* for any purpose. It is provided "as is" without express or implied warranty.
* See the GNU General Public License for more details.
*
* Documents produced by Doxygen are derivative works derived from the
* input used in their production; they are not affected by this license.
*
*/
#ifndef _PNGENC_H
#define _PNGENC_H
#include <qfile.h>
typedef unsigned char Byte;
/*! \brief Entry in the color palette of a PNG image */
struct Color
{
Byte red;
Byte green;
Byte blue;
};
/*! \brief PNG image encoder
*
* This class allows to encode a raw image to a compressed PNG.
* Use write() to save the result to disk.
*/
class PngEncoder
{
public:
PngEncoder(Byte *rawBytes,Color *p,int w,int h,Byte d,int t);
~PngEncoder();
void write(const char *fileName);
private:
// image variables
Byte *data; // pointer to the image data (one byte per pixel)
Color *palette; // pointer to the color palette
int width; // image width
int height; // image height
Byte depth; // bits per CLUT entry
int transIndex; // index of the transparant color; -1 = none
int numPixels; // total number of pixel (i.e. width * height)
Byte *dataPtr; // pointer located at the current pixel.
};
#endif
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