OgreVolumeChunkHandler.h

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/*
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This source file is part of OGRE
(Object-oriented Graphics Rendering Engine)
For the latest info, see http://www.ogre3d.org/

Copyright (c) 2000-2014 Torus Knot Software Ltd

Permission is hereby granted, free of charge, to any person obtaining a copy
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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,
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*/
#ifndef __Ogre_Volume_Chunk_Handler_H__
#define __Ogre_Volume_Chunk_Handler_H__

#include "OgreWorkQueue.h"

#include "OgreVolumePrerequisites.h"
#include "OgreVolumeChunk.h"
#include "OgreVolumeMeshBuilder.h"
#include "OgreVolumeDualGridGenerator.h"
#include "OgreVolumeOctreeNode.h"

namespace Ogre {
namespace Volume {
    
    class Chunk;

    typedef struct ChunkRequest
    {

        Vector3 totalFrom;

        Vector3 totalTo;

        size_t level;

        size_t maxLevels;

        MeshBuilder *meshBuilder;

        DualGridGenerator *dualGridGenerator;

        OctreeNode *root;

        Chunk *origin;

        bool isUpdate;
        
        _OgreVolumeExport friend std::ostream& operator<<(std::ostream& o, const ChunkRequest& r)
        { return o; }
    } ChunkRequest;
    
    class _OgreVolumeExport ChunkHandler : public WorkQueue::RequestHandler, public WorkQueue::ResponseHandler
    {
    protected:
        
        static const uint16 WORKQUEUE_LOAD_REQUEST;

        WorkQueue* mWQ;

        uint16 mWorkQueueChannel;
        
        void init(void);

    public:
        
        ChunkHandler(void);

        virtual ~ChunkHandler(void);
        
        void addRequest(const ChunkRequest &req);

        void processWorkQueue(void);

        WorkQueue::Response* handleRequest(const WorkQueue::Request* req, const WorkQueue* srcQ);
        
        void handleResponse(const WorkQueue::Response* res, const WorkQueue* srcQ);
        
    };
}
}

#endif