Image.h

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/* This file is part of the Zenipex Library (zenilib).
 * Copyright (C) 2011 Mitchell Keith Bloch (bazald).
 *
 * zenilib is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * zenilib is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with zenilib.  If not, see <http://www.gnu.org/licenses/>.
 */

#ifndef ZENI_IMAGE_H
#define ZENI_IMAGE_H

#include <Zeni/Color.h>
#include <Zeni/Coordinate.h>
#include <Zeni/Core.h>
#include <Zeni/String.h>

/* \cond */
#ifndef ANDROID
#ifdef _MACOSX
#include <SDL/SDL.h>
#else
#include <SDL/SDL.h>
#endif
#endif
/* \endcond */

namespace Zeni {

  class ZENI_GRAPHICS_DLL Image {
  public:
    enum Color_Space {Luminance, Luminance_Alpha, RGB, RGBA};

    Image();
    Image(const String &filename, const bool &tileable_ = false);
    Image(const Point2i &size_, const Color_Space &color_space_, const bool &tileable_ = false);

    inline Color_Space color_space() const; 
    inline const Uint8 * get_data() const; 
    inline Uint8 * get_data(); 
    inline const Point2i & size() const; 
    inline int width() const; 
    inline int height() const; 
    inline bool tileable() const; 

    void set_Color(const Point2i &pixel, const Color &color); 
    void set_RGBA(const Point2i &pixel, const Uint32 &rgba); 
    Color extract_Color(const Point2i &pixel) const; 
    Uint32 extract_RGBA(const Point2i &pixel) const; 

    Color extract_Color(const Point2f &coordinate) const; 

    void resize(const int &width, const int &height);
    bool blit(const Point2i &upper_left, const Image &source); 

  private:
    const Uint8 * get_pixel(const Point2i &pixel) const;
    Uint8 * get_pixel(const Point2i &pixel);

    Point2i m_size;
    Color_Space m_color_space;

    int m_bytes_per_pixel;
    int m_row_size;

#ifdef _WINDOWS
#pragma warning( push )
#pragma warning( disable : 4251 )
#endif
    std::vector<Uint8> m_data;
#ifdef _WINDOWS
#pragma warning( pop )
#endif

    bool m_tileable;
  };

  struct ZENI_GRAPHICS_DLL Image_Init_Failure : public Error {
    Image_Init_Failure() : Error("Zeni Image Failed to Initialize Correctly") {}
  };

  struct ZENI_GRAPHICS_DLL Image_Index_Error : public Error {
    Image_Index_Error() : Error("Zeni Image Indexed Out of Bounds") {}
  };

}

#endif