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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 __C_VERTEX_BUFFER_H_INCLUDED__
#define __C_VERTEX_BUFFER_H_INCLUDED__
#include "IVertexBuffer.h"
namespace irr
{
namespace scene
{
class CVertexBuffer : public IVertexBuffer
{
class IVertexList
{
public:
virtual ~IVertexList(){};
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;
virtual video::E_VERTEX_TYPE getType() const =0;
};
template <class T>
class CSpecificVertexList : public IVertexList
{
public:
core::array<T> Vertices;
virtual u32 stride() const {return sizeof(T);}
virtual u32 size() const {return Vertices.size();}
virtual void push_back (const video::S3DVertex &element)
{Vertices.push_back((T&)element);}
virtual video::S3DVertex& operator [](const u32 index) const
{return (video::S3DVertex&)Vertices[index];}
virtual video::S3DVertex& getLast()
{return (video::S3DVertex&)Vertices.getLast();}
virtual void set_used(u32 usedNow)
{Vertices.set_used(usedNow);}
virtual void reallocate(u32 new_size)
{Vertices.reallocate(new_size);}
virtual u32 allocated_size() const
{
return Vertices.allocated_size();
}
virtual video::S3DVertex* pointer() {return Vertices.pointer();}
virtual video::E_VERTEX_TYPE getType() const {return T().getType();}
};
public:
IVertexList *Vertices;
CVertexBuffer(video::E_VERTEX_TYPE vertexType) : Vertices(0),
MappingHint(EHM_NEVER), ChangedID(1)
{
setType(vertexType);
}
CVertexBuffer(const IVertexBuffer &VertexBufferCopy) :
Vertices(0), MappingHint(EHM_NEVER),
ChangedID(1)
{
setType(VertexBufferCopy.getType());
reallocate(VertexBufferCopy.size());
for (u32 n=0;n<VertexBufferCopy.size();++n)
push_back(VertexBufferCopy[n]);
}
virtual ~CVertexBuffer()
{
delete Vertices;
}
virtual void setType(video::E_VERTEX_TYPE vertexType)
{
IVertexList *NewVertices=0;
switch (vertexType)
{
case video::EVT_STANDARD:
{
NewVertices=new CSpecificVertexList<video::S3DVertex>;
break;
}
case video::EVT_2TCOORDS:
{
NewVertices=new CSpecificVertexList<video::S3DVertex2TCoords>;
break;
}
case video::EVT_TANGENTS:
{
NewVertices=new CSpecificVertexList<video::S3DVertexTangents>;
break;
}
}
if (Vertices)
{
NewVertices->reallocate( Vertices->size() );
for(u32 n=0;n<Vertices->size();++n)
NewVertices->push_back((*Vertices)[n]);
delete Vertices;
}
Vertices=NewVertices;
}
virtual void* getData() {return Vertices->pointer();}
virtual video::E_VERTEX_TYPE getType() const {return Vertices->getType();}
virtual u32 stride() const {return Vertices->stride();}
virtual u32 size() const
{
return Vertices->size();
}
virtual void push_back (const video::S3DVertex &element)
{
Vertices->push_back(element);
}
virtual video::S3DVertex& operator [](const u32 index) const
{
return (*Vertices)[index];
}
virtual video::S3DVertex& getLast()
{
return Vertices->getLast();
}
virtual void set_used(u32 usedNow)
{
Vertices->set_used(usedNow);
}
virtual void reallocate(u32 new_size)
{
Vertices->reallocate(new_size);
}
virtual u32 allocated_size() const
{
return Vertices->allocated_size();
}
virtual video::S3DVertex* pointer()
{
return Vertices->pointer();
}
//! get the current hardware mapping hint
virtual E_HARDWARE_MAPPING getHardwareMappingHint() const
{
return MappingHint;
}
//! set the hardware mapping hint, for driver
virtual void setHardwareMappingHint( E_HARDWARE_MAPPING NewMappingHint )
{
MappingHint=NewMappingHint;
}
//! flags the mesh as changed, reloads hardware buffers
virtual void setDirty()
{
++ChangedID;
}
//! Get the currently used ID for identification of changes.
/** This shouldn't be used for anything outside the VideoDriver. */
virtual u32 getChangedID() const {return ChangedID;}
E_HARDWARE_MAPPING MappingHint;
u32 ChangedID;
};
} // end namespace scene
} // end namespace irr
#endif
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