picture.h

[詳解]

/**********************************************************************//*
 *  (c) 2002-2018 oZ/acy.  ALL RIGHTS RESERVED.
 */
#ifndef INC_POLYMNIA_PICTURE_H___
#define INC_POLYMNIA_PICTURE_H___

#include <string>
#include <cstring>
#include "ibuf.h"
#include "rgb.h"


namespace polymnia
{
  class Picture;
  class PictureIndexed;
}


class polymnia::Picture : public polymnia::ImageBuffer<polymnia::RgbColor>
{
protected:
  Picture(unsigned w, unsigned h)
    : polymnia::ImageBuffer<polymnia::RgbColor>(w, h, w)
    { buf_ = new polymnia::RgbColor[h_ * offset_]; }

public:
  ~Picture() { delete[] buf_; }
  static Picture* create(unsigned w, unsigned h) noexcept;
  Picture* clone() const noexcept;

  polymnia::PictureIndexed* duplicatePictureIndexed() const noexcept;

  void convertToGrayScaled() noexcept;

  polymnia::PictureIndexed* createPictureGrayScaleIndexed() const noexcept;

  Picture* createReducedPicture(int w, int h) const noexcept;

  Picture* createMagnifiedPicture(int w, int h) const noexcept;
};




class polymnia::PictureIndexed : public polymnia::ImageBuffer<themis::UByte>
{
protected:
  polymnia::RgbColor pal_[256]; 

  PictureIndexed(unsigned w, unsigned h)
    : polymnia::ImageBuffer<themis::UByte>(w, h, w)
    { buf_ = new themis::UByte[h_ * offset_]; }


public:
  ~PictureIndexed() { delete[] buf_; }

  static PictureIndexed* create(unsigned w, unsigned h) noexcept;

  PictureIndexed* clone() const noexcept;


  // パレットへのアクセス
  polymnia::RgbColor& palette(int id) noexcept { return pal_[id]; }
  const polymnia::RgbColor& palette(int id) const noexcept { return pal_[id]; }
  polymnia::RgbColor* paletteBuffer() noexcept { return pal_; }
  const polymnia::RgbColor* paletteBuffer() const noexcept { return pal_; }

  polymnia::Picture* duplicatePicture() const noexcept;
};



#endif // INC_POLYMNIA_PICTURE_H___