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rgbimage.h

/**********************************************************************************
* Copyright (c) 2003, Christoph Rueegg <opendev@cdrnet.ch> and Matthias Bader     *
* Partially based on ideas of Tim Weyrich <weyrich@inf.ethz.ch>                   *
* and/or the Swiss Federal Institute of Technology http://www.ethz.ch             *
* All rights reserved.                                                            *
*                                                                                 *
* Project Website: http://www.cdrnet.net/projects/painter/                        *
*                                                                                 *
* Redistribution and use in source and binary forms, with or without modification,*
* are permitted provided that the following conditions are met:                   *
*                                                                                 *
* 1. Redistributions of source code must retain the above copyright notice,       *
* this list of conditions and the following disclaimer.                           *
*                                                                                 *
* 2. Redistributions in binary form must reproduce the above copyright notice,    *
* this list of conditions and the following disclaimer in the documentation       *
* and/or other materials provided with the distribution.                          *
*                                                                                 *
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"     *
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE       *
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE      *
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE        *
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR             *
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF            *
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS        *
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN         *
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)         *
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF          *
* THE POSSIBILITY OF SUCH DAMAGE.                                                 *
**********************************************************************************/

#ifndef __RGBIMAGE_H__
#define __RGBIMAGE_H__

#include <cstdlib>
#include <cstring>
#include <cassert>
#include <iostream>
#include <cmath>
#include <tiff.h>
#include <tiffio.h>
#include <GL/glut.h>

#include "alphaimage.h"
#include "hybridchannel.cpp"

#define  HAVE_BIGENDIAN  (*(unsigned short *)"12" == 0x3132)
#define  SWAP_UINT32(x)  (( ((uint32)(x))                 << 24) |  \
                          ((((uint32)(x)) & 0x0000ff00UL) <<  8) |  \
                          ((((uint32)(x)) & 0x00ff0000UL) >>  8) |  \
                          ( ((uint32)(x))                 >> 24))

class RgbImage: public AlphaImage
{
protected:
  HybridRgbaChannel<unsigned char> *reddata;
  HybridRgbaChannel<unsigned char> *greendata;
  HybridRgbaChannel<unsigned char> *bluedata;
  Channel<unsigned char> *redfilter;
  Channel<unsigned char> *greenfilter;
  Channel<unsigned char> *bluefilter;
public:
  RgbImage(HybridRgbaChannel<unsigned char>* red, HybridRgbaChannel<unsigned char>* green, HybridRgbaChannel<unsigned char>* blue);
  RgbImage(const int height, const int width);
  virtual ~RgbImage();
  double Draw();
  unsigned char GetLuminance(const int x, const int y);
  void SetLuminance(const int x, const int y, const unsigned char val);
  virtual unsigned char GetRed(const int x, const int y);
  virtual unsigned char GetGreen(const int x, const int y);
  virtual unsigned char GetBlue(const int x, const int y);
  virtual void SetRed(const int x, const int y, const unsigned char val);
  virtual void SetGreen(const int x, const int y, const unsigned char val);
  virtual void SetBlue(const int x, const int y, const unsigned char val);
  void RemoveLuminanceFilters();
  void AttachLuminanceFilter(ChannelFilter<unsigned char>* filter);
  virtual void RemoveRedFilters();
  virtual void AttachRedFilter(ChannelFilter<unsigned char>* filter);
  virtual void RemoveGreenFilters();
  virtual void AttachGreenFilter(ChannelFilter<unsigned char>* filter);
  virtual void RemoveBlueFilters();
  virtual void AttachBlueFilter(ChannelFilter<unsigned char>* filter);
  static RgbImage* CreateFromTiff(const char* filename);
  void WriteToTiff(const char* filename);
};

#endif

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