// Copyright (C) 2008-2012 Nikolaus Gebhardt
// This file is part of the "Irrlicht Engine".
// For conditions of distribution and use, see copyright notice in irrlicht.h

#pragma once

#include "IReferenceCounted.h"
#include "irrArray.h"
#include "EHardwareBufferFlags.h"
#include "S3DVertex.h"

namespace irr
{
namespace scene
{

class IVertexBuffer : public virtual IReferenceCounted
{
public:
	virtual void *getData() = 0;
	virtual video::E_VERTEX_TYPE getType() const = 0;
	virtual void setType(video::E_VERTEX_TYPE vertexType) = 0;
	virtual u32 stride() const = 0;
	virtual u32 size() const = 0;
	virtual void push_back(const video::S3DVertex &element) = 0;
	virtual video::S3DVertex &operator[](const u32 index) const = 0;
	virtual video::S3DVertex &getLast() = 0;
	virtual void set_used(u32 usedNow) = 0;
	virtual void reallocate(u32 new_size) = 0;
	virtual u32 allocated_size() const = 0;
	virtual video::S3DVertex *pointer() = 0;

	//! get the current hardware mapping hint
	virtual E_HARDWARE_MAPPING getHardwareMappingHint() const = 0;

	//! set the hardware mapping hint, for driver
	virtual void setHardwareMappingHint(E_HARDWARE_MAPPING NewMappingHint) = 0;

	//! flags the meshbuffer as changed, reloads hardware buffers
	virtual void setDirty() = 0;

	//! Get the currently used ID for identification of changes.
	/** This shouldn't be used for anything outside the VideoDriver. */
	virtual u32 getChangedID() const = 0;
};

} // end namespace scene
} // end namespace irr