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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 _Pixel8_H_
+#define _Pixel8_H_
+
+#include "../api.h"
+#include "Pixeldefs.h"
+#include "Pixel32.h"
+
+#include <stdlib.h>
+
+namespace avg {
+
+class AVG_API Pixel8
+{
+ public:
+ Pixel8 ();
+ Pixel8 (unsigned char i);
+ void set (unsigned char i);
+ unsigned char get () const;
+ unsigned char getR () const;
+ unsigned char getG () const;
+ unsigned char getB () const;
+ void flipRB();
+
+ template<class SrcPixel>
+ Pixel8 operator = (const SrcPixel& Pix)
+ {
+ set ((Pix.getR()*54+Pix.getG()*183+Pix.getB()*19)/256);
+ return *this;
+ }
+
+ Pixel8 operator = (const Pixel8& Pix)
+ {
+ set (Pix.get());
+ return *this;
+ }
+
+ operator Pixel32 () const;
+
+ bool operator ==(const Pixel8&) const;
+ bool operator !=(const Pixel8&) const;
+ void operator +=(const Pixel8&);
+ void operator -=(const Pixel8&);
+
+ // Simple and fast 'distance' between two pixels. Just adds the
+ // distances between the color components and treats colors
+ // equally.
+ int boxDist (const Pixel8 Pix) const;
+
+ // Returns a weighed average between two pixels. Factor must be
+ // between 0 and 256. Factor=256 means Pix1 is the result, Factor=0
+ // means Pix2 is the result.
+ static Pixel8 Blend (int Factor, const Pixel8 Pix1,
+ const Pixel8 Pix2);
+
+ private:
+ unsigned char m_i;
+};
+
+inline Pixel8::Pixel8()
+{
+}
+
+inline Pixel8::Pixel8(unsigned char i)
+{
+ set (i);
+}
+
+inline void Pixel8::set(unsigned char i)
+{
+ m_i = i;
+}
+
+inline unsigned char Pixel8::get() const
+{
+ return m_i;
+}
+
+inline unsigned char Pixel8::getR() const
+{
+ return m_i;
+}
+
+inline unsigned char Pixel8::getG() const
+{
+ return m_i;
+}
+
+inline unsigned char Pixel8::getB() const
+{
+ return m_i;
+}
+
+inline int Pixel8::boxDist (const Pixel8 Pix) const
+{
+ return (abs ((int)get()-Pix.get()));
+}
+
+inline Pixel8 Pixel8::Blend (int Factor, const Pixel8 Pix1, const Pixel8 Pix2)
+{
+ return Pixel8 ((Pix1.get()*Factor+Pix2.get()*(256-Factor))>>8);
+}
+
+inline Pixel8::operator Pixel32 () const
+{
+ return Pixel32 (m_i, m_i, m_i, 255);
+}
+
+inline bool Pixel8::operator ==(const Pixel8& Pix) const
+{
+ return (get() == Pix.get());
+}
+
+inline bool Pixel8::operator !=(const Pixel8& Pix) const
+{
+ return (!(*this == Pix));
+}
+
+inline void Pixel8::operator += (const Pixel8& Pix)
+{
+ m_i += Pix.m_i;
+}
+
+inline void Pixel8::operator -= (const Pixel8& Pix)
+{
+ m_i -= Pix.m_i;
+}
+
+}
+#endif