invertmodifier.cpp

// © Copyright 2010 - 2016 BlackTopp Studios Inc.
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/*
 -----------------------------------------------------------------------------
 This source file is part of ogre-procedural

 For the latest info, see http://code.google.com/p/ogre-procedural/

 Copyright (c) 2010-2013 Michael Broutin

 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
 in the Software without restriction, including without limitation the rights
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 copies of the Software, and to permit persons to whom the Software is
 furnished to do so, subject to the following conditions:

 The above copyright notice and this permission notice shall be included in
 all copies or substantial portions of the Software.

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 */
#ifndef _graphicsproceduralinvertmodifier_cpp
#define _graphicsproceduralinvertmodifier_cpp

#include "Graphics/Procedural/Texture/invertmodifier.h"

namespace Mezzanine
{
    namespace Graphics
    {
        namespace Procedural
        {
            InvertModifier::InvertModifier() :
                IncludeAlpha(false)
                {  }

            InvertModifier::~InvertModifier()
                {  }

            ///////////////////////////////////////////////////////////////////////////////
            // Utility

            void InvertModifier::Modify(TextureBuffer& Buffer)
            {
                Whole Width = Buffer.GetWidth();
                Whole Height = Buffer.GetHeight();

                for( Whole Y = 0 ; Y < Height ; ++Y )
                {
                    for( Whole X = 0 ; X < Width ; ++X )
                    {
                        ColourValue Pixel = Buffer.GetPixel(X,Y);
                        Buffer.SetPixelReal(X,Y,1.0 - Pixel.RedChannel, 1.0 - Pixel.GreenChannel, 1.0 - Pixel.BlueChannel, ( this->IncludeAlpha ? 1.0 - Pixel.AlphaChannel : Pixel.AlphaChannel ));
                    }
                }
            }

            String InvertModifier::GetName() const
                { return "InvertModifier"; }

            ///////////////////////////////////////////////////////////////////////////////
            // Configuration

            InvertModifier& InvertModifier::SetIncludeAlpha(const Boole Alpha)
                { this->IncludeAlpha = Alpha;  return *this; }
        }//Procedural
    }//Graphics
}//Mezzanine

#endif