AtomicGameEngine/Source/AtomicGlow/Kernel/RadianceMap.h

// Copyright (c) 2014-2017, THUNDERBEAST GAMES LLC All rights reserved
//
// 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
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// 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.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
//

#pragma once

#include <Atomic/Resource/Image.h>


namespace AtomicGlow
{

class BakeMesh;

using namespace Atomic;

class RadianceMap : public Object
{
    ATOMIC_OBJECT(RadianceMap, Object)

    public:

    RadianceMap(Context* context, BakeMesh* bakeMesh);
    virtual ~RadianceMap();

    int GetWidth() const { return image_.Null() ? 0 : image_->GetWidth(); }
    int GetHeight() const { return image_.Null() ? 0 : image_->GetHeight(); }

    SharedPtr<BakeMesh> bakeMesh_;
    SharedPtr<Image> image_;
    bool packed_;

private:

    bool CheckValidPixel(int x, int y, Color& color);
    bool FillInvalidPixels(int searchDistance = 1);
    void Blur();
    bool Downsample();

};


}