OgreDefaultHardwareBufferManager.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) 2000-2012 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
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*/

#ifndef __DefaultHardwareBufferManager_H__
#define __DefaultHardwareBufferManager_H__

#include "OgrePrerequisites.h"
#include "OgreHardwareBufferManager.h"
#include "OgreHardwareVertexBuffer.h"
#include "OgreHardwareIndexBuffer.h"

namespace Ogre {

    class _OgreExport DefaultHardwareVertexBuffer : public HardwareVertexBuffer 
    {
    protected:
        unsigned char* mData;
        void* lockImpl(size_t offset, size_t length, LockOptions options);
        void unlockImpl(void);
    public:
        DefaultHardwareVertexBuffer(size_t vertexSize, size_t numVertices, HardwareBuffer::Usage usage);
        DefaultHardwareVertexBuffer(HardwareBufferManagerBase* mgr, size_t vertexSize, size_t numVertices, 
            HardwareBuffer::Usage usage);
        ~DefaultHardwareVertexBuffer();
        void readData(size_t offset, size_t length, void* pDest);
        void writeData(size_t offset, size_t length, const void* pSource,
                bool discardWholeBuffer = false);
        void* lock(size_t offset, size_t length, LockOptions options);
        void unlock(void);


    };

    class _OgreExport DefaultHardwareIndexBuffer : public HardwareIndexBuffer
    {
    protected:
        unsigned char* mData;
        void* lockImpl(size_t offset, size_t length, LockOptions options);
        void unlockImpl(void);
    public:
        DefaultHardwareIndexBuffer(IndexType idxType, size_t numIndexes, HardwareBuffer::Usage usage);
        ~DefaultHardwareIndexBuffer();
        void readData(size_t offset, size_t length, void* pDest);
        void writeData(size_t offset, size_t length, const void* pSource,
                bool discardWholeBuffer = false);
        void* lock(size_t offset, size_t length, LockOptions options);
        void unlock(void);

    };

    class _OgreExport DefaultHardwareBufferManagerBase : public HardwareBufferManagerBase
    {
    public:
        DefaultHardwareBufferManagerBase();
        ~DefaultHardwareBufferManagerBase();
        HardwareVertexBufferSharedPtr 
            createVertexBuffer(size_t vertexSize, size_t numVerts, 
                HardwareBuffer::Usage usage, bool useShadowBuffer = false);
        HardwareIndexBufferSharedPtr 
            createIndexBuffer(HardwareIndexBuffer::IndexType itype, size_t numIndexes, 
                HardwareBuffer::Usage usage, bool useShadowBuffer = false);
        RenderToVertexBufferSharedPtr createRenderToVertexBuffer();
    };

    class _OgreExport DefaultHardwareBufferManager : public HardwareBufferManager
    {
    public:
        DefaultHardwareBufferManager()
            : HardwareBufferManager(OGRE_NEW DefaultHardwareBufferManagerBase()) 
        {

        }
        ~DefaultHardwareBufferManager()
        {
            OGRE_DELETE mImpl;
        }
    };

}

#endif