OgreGLES2HardwareVertexBuffer.h

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/*
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#ifndef __GLES2HardwareVertexBuffer_H__
#define __GLES2HardwareVertexBuffer_H__

#include "OgreGLES2Prerequisites.h"
#include "OgreHardwareVertexBuffer.h"
#include "OgreGLES2ManagedResource.h"

namespace Ogre {
    class _OgreGLES2Export GLES2HardwareVertexBuffer : public HardwareVertexBuffer MANAGED_RESOURCE
    {
        private:
            GLuint mBufferId;
            GLsync mFence;

        protected:
            void* lockImpl(size_t offset, size_t length, LockOptions options);
            void unlockImpl(void);
        
            void createBuffer();
        
            void destroyBuffer();
        
#if OGRE_PLATFORM == OGRE_PLATFORM_ANDROID

            virtual void notifyOnContextLost();
        
            virtual void notifyOnContextReset();
#endif
        
        public:
            GLES2HardwareVertexBuffer(HardwareBufferManagerBase* mgr, size_t vertexSize, size_t numVertices,
                                   HardwareBuffer::Usage usage, bool useShadowBuffer);
            virtual ~GLES2HardwareVertexBuffer();

            void readData(size_t offset, size_t length, void* pDest);

            void writeData(size_t offset, size_t length, 
                           const void* pSource, bool discardWholeBuffer = false);
#if OGRE_NO_GLES3_SUPPORT == 0

            void copyData(HardwareBuffer& srcBuffer, size_t srcOffset,
                      size_t dstOffset, size_t length, bool discardWholeBuffer = false);
#endif

            void _updateFromShadow(void);

            inline GLuint getGLBufferId(void) const { return mBufferId; }
            void setFence(void);
    };
}

#endif