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//
// libavg - Media Playback Engine.
// Copyright (C) 2003-2014 Ulrich von Zadow
//
// This library 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 2 of the License, or (at your option) any later version.
//
// This library 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 this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
//
// Current versions can be found at www.libavg.de
//
#ifndef _Pixel16_H_
#define _Pixel16_H_
#include "../api.h"
#include "Pixeldefs.h"
#include "Pixel24.h"
#include "Pixel32.h"
#include <stdlib.h>
#include <math.h>
namespace avg {
// 16 bit pixel class. A pixel in this class contains 5 bits of
// red, 6 of green and 5 of blue (in that order).
class AVG_API Pixel16
{
public:
Pixel16 ();
Pixel16 (unsigned char r, unsigned char g, unsigned char b);
void Set (unsigned char r, unsigned char g, unsigned char b);
void SetR (unsigned char r);
void SetG (unsigned char g);
void SetB (unsigned char b);
unsigned char getR () const;
unsigned char getG () const;
unsigned char getB () const;
Pixel16 operator = (const Pixel32& Pix);
operator Pixel32 () const;
Pixel16 operator = (const Pixel24& Pix);
operator Pixel24 () const;
bool operator ==(const Pixel16 Pix) const;
bool operator !=(const Pixel16 Pix) const;
// Simple and fast 'distance' between two pixels. Just adds the
// distances between the color components and treats colors
// equally.
int BoxDist (const Pixel16 Pix) const;
private:
unsigned short m_Data;
};
inline Pixel16::Pixel16()
{
}
inline Pixel16::Pixel16(unsigned char r, unsigned char g, unsigned char b)
{
Set (r, g, b);
}
inline void Pixel16::Set (unsigned char r, unsigned char g, unsigned char b)
{
#ifdef PIXEL_BGRA_ORDER
m_Data = ((r&0xF8) << 8) | ((g&0xFC) << 3) | (b>>3);
#else
m_Data = (b&0xF8) << 8 | ((g&0xFC) << 3) | (r>>3);
#endif
}
inline void Pixel16::SetR(unsigned char r)
{
#ifdef PIXEL_BGRA_ORDER
m_Data = (m_Data&0x07FF)|((r&0xF8)<<8);
#else
m_Data = (m_Data&0xFFE0)|(r>>3);
#endif
}
inline void Pixel16::SetG(unsigned char g)
{
m_Data = (m_Data&0xF81F)|((g&0xFC)<<3);
}
inline void Pixel16::SetB(unsigned char b)
{
#ifdef PIXEL_BGRA_ORDER
m_Data = (m_Data&0xFFE0)|(b>>3);
#else
m_Data = (m_Data&0x07FF)|((b&0xF8)<<8);
#endif
}
inline unsigned char Pixel16::getR() const
{
#ifdef PIXEL_BGRA_ORDER
return (m_Data&0xF800)>>8;
#else
return (m_Data&0x001F)<<3;
#endif
}
inline unsigned char Pixel16::getG() const
{
return (m_Data&0x07E0)>>3;
}
inline unsigned char Pixel16::getB() const
{
#ifdef PIXEL_BGRA_ORDER
return (m_Data&0x001F)<<3;
#else
return (m_Data&0xF800)>>8;
#endif
}
inline Pixel16 Pixel16::operator = (const Pixel32& Pix)
{
Set (Pix.getR(), Pix.getG(), Pix.getB());
return *this;
}
inline Pixel16::operator Pixel32 () const
{
// TODO: Make faster.
return Pixel32 (getR(), getG(), getB(), 255);
}
inline Pixel16 Pixel16::operator = (const Pixel24& Pix)
{
Set (Pix.getR(), Pix.getG(), Pix.getB());
return *this;
}
inline Pixel16::operator Pixel24 () const
{
// TODO: Make faster.
return Pixel24 (getR(), getG(), getB());
}
inline int Pixel16::BoxDist (const Pixel16 Pix) const
{
return (abs ((int)getR()-Pix.getR()) +
abs ((int)getG()-Pix.getG()) +
abs ((int)getB()-Pix.getB()));
}
inline bool Pixel16::operator ==(const Pixel16 Pix) const
{
return (*(const short *)this == *(const short*)&Pix);
}
inline bool Pixel16::operator !=(const Pixel16 Pix) const
{
return (!(*this == Pix));
}
}
#endif
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