OgreGL3PlusDefaultHardwareBufferManager.h

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/*
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This source file is part of OGRE
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#ifndef __GL3PlusDefaultHardwareBufferManager_H__
#define __GL3PlusDefaultHardwareBufferManager_H__

#include "OgreGL3PlusPrerequisites.h"
#include "OgreHardwareBufferManager.h"
#include "OgreHardwareCounterBuffer.h"
#include "OgreHardwareIndexBuffer.h"
#include "OgreHardwareUniformBuffer.h"
#include "OgreHardwareVertexBuffer.h"

namespace Ogre {
    class _OgreGL3PlusExport GL3PlusDefaultHardwareVertexBuffer : public HardwareVertexBuffer
    {
        protected:
            unsigned char* mData;
            void* lockImpl(size_t offset, size_t length, LockOptions options);
            void unlockImpl(void);

        public:
            GL3PlusDefaultHardwareVertexBuffer(size_t vertexSize, size_t numVertices,
                                          HardwareBuffer::Usage usage);
            GL3PlusDefaultHardwareVertexBuffer(HardwareBufferManagerBase* mgr, size_t vertexSize, size_t numVertices, 
                                          HardwareBuffer::Usage usage);
            ~GL3PlusDefaultHardwareVertexBuffer();
            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);

            void* getDataPtr(size_t offset) const { return (void*)(mData + offset); }
    };

    class _OgreGL3PlusExport GL3PlusDefaultHardwareIndexBuffer : public HardwareIndexBuffer
    {
        protected:
            unsigned char* mData;
            void* lockImpl(size_t offset, size_t length, LockOptions options);
            void unlockImpl(void);
        public:
            GL3PlusDefaultHardwareIndexBuffer(IndexType idxType, size_t numIndexes, HardwareBuffer::Usage usage);
            ~GL3PlusDefaultHardwareIndexBuffer();
            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);

            void* getDataPtr(size_t offset) const { return (void*)(mData + offset); }
    };

    class _OgreGL3PlusExport GL3PlusDefaultHardwareUniformBuffer : public HardwareUniformBuffer
    {
    protected:
        unsigned char* mData;
        void* lockImpl(size_t offset, size_t length, LockOptions options);
        void unlockImpl(void);
        
    public:
        GL3PlusDefaultHardwareUniformBuffer(size_t bufferSize, HardwareBuffer::Usage usage, bool useShadowBuffer, const String& name);
        GL3PlusDefaultHardwareUniformBuffer(HardwareBufferManagerBase* mgr, size_t bufferSize,
                                           HardwareBuffer::Usage usage, bool useShadowBuffer, const String& name);
        ~GL3PlusDefaultHardwareUniformBuffer();
        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);
        
        void* getDataPtr(size_t offset) const { return (void*)(mData + offset); }
    };

    class _OgreGL3PlusExport GL3PlusDefaultHardwareCounterBuffer : public HardwareCounterBuffer
    {
    protected:
        unsigned char* mData;
        void* lockImpl(size_t offset, size_t length, LockOptions options);
        void unlockImpl(void);

    public:
        GL3PlusDefaultHardwareCounterBuffer(const String& name);
        GL3PlusDefaultHardwareCounterBuffer(HardwareBufferManagerBase* mgr, const String& name);
        ~GL3PlusDefaultHardwareCounterBuffer();
        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);

        void* getDataPtr(size_t offset) const { return (void*)(mData + offset); }
    };

    class _OgreGL3PlusExport GL3PlusDefaultHardwareBufferManagerBase : public HardwareBufferManagerBase
    {
        public:
            GL3PlusDefaultHardwareBufferManagerBase();
            ~GL3PlusDefaultHardwareBufferManagerBase();
            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);
            HardwareUniformBufferSharedPtr
                createUniformBuffer(size_t sizeBytes, HardwareBuffer::Usage usage, bool useShadowBuffer, const String& name = "");
            HardwareCounterBufferSharedPtr
                createCounterBuffer(size_t sizeBytes, HardwareBuffer::Usage usage, bool useShadowBuffer, const String& name = "");
            RenderToVertexBufferSharedPtr createRenderToVertexBuffer(void);
    };

    class _OgreGL3PlusExport GL3PlusDefaultHardwareBufferManager : public HardwareBufferManager
    {
    public:
        GL3PlusDefaultHardwareBufferManager()
            : HardwareBufferManager(OGRE_NEW GL3PlusDefaultHardwareBufferManagerBase()) 
        {

        }
        ~GL3PlusDefaultHardwareBufferManager()
        {
            OGRE_DELETE mImpl;
        }
    };
}

#endif