irrlicht/include/IIndexBuffer.h

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// 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
#ifndef IRR_I_INDEX_BUFFER_H_INCLUDED
#define IRR_I_INDEX_BUFFER_H_INCLUDED
#include "IReferenceCounted.h"
#include "irrArray.h"
#include "EHardwareBufferFlags.h"
#include "SVertexIndex.h"
namespace irr
{
namespace scene
{
class IIndexBuffer : public virtual IReferenceCounted
{
public:
//! Pointer to first element
virtual void* getData() =0;
//! Const pointer to first element
virtual const void* getData() const =0;
//! Same as getData(), just closer to core::array interface
void* pointer() { return getData(); }
virtual video::E_INDEX_TYPE getType() const =0;
//! Change between 16 and 32 bit indices.
/** This copies all indices to a new buffer of corresponding type.
Be careful - going from 32 to 16 bit will only work correctly
if none of your indices is larger than 16 bit. */
virtual void setType(video::E_INDEX_TYPE IndexType) =0;
//! Number of bytes per element
virtual u32 stride() const =0;
//! Number of elements
virtual u32 size() const =0;
//! Add value to end. Note that for 16 bit index types values shouldn't be larger than u16
virtual void push_back(u32 value) =0;
//! Set value at index. Note that for 16 bit index types values shouldn't be larger than u16
/** Buffer must be already large enough. This is basically the non const version of operator [] */
virtual void setValue(u32 index, u32 value) =0;
//! Access element value at given index
virtual u32 operator [](u32 index) const =0;
virtual u32 getLast() =0;
virtual void set_used(u32 usedNow) =0;
virtual void reallocate(u32 new_size, bool canShrink=true) =0;
virtual u32 allocated_size() const=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
#endif