Interface used to by the Terrain instance to allocate GPU buffers. More...

Inheritance diagram for Ogre::Terrain::GpuBufferAllocator:

Collaboration diagram for Ogre::Terrain::GpuBufferAllocator:

Public Member Functions
	GpuBufferAllocator ()

virtual	~GpuBufferAllocator ()

virtual void	allocateVertexBuffers (Terrain *forTerrain, size_t numVertices, HardwareVertexBufferSharedPtr &destPos, HardwareVertexBufferSharedPtr &destDelta)=0
	Allocate (or reuse) vertex buffers for a terrain LOD. More...

virtual void	freeAllBuffers ()=0
	Free any buffers we're holding. More...

virtual void	freeVertexBuffers (const HardwareVertexBufferSharedPtr &posbuf, const HardwareVertexBufferSharedPtr &deltabuf)=0
	Free (or return to the pool) vertex buffers for terrain. More...

virtual HardwareIndexBufferSharedPtr	getSharedIndexBuffer (uint16 batchSize, uint16 vdatasize, size_t vertexIncrement, uint16 xoffset, uint16 yoffset, uint16 numSkirtRowsCols, uint16 skirtRowColSkip)=0
	Get a shared index buffer for a given number of settings. More...

void	operator delete (void *ptr)

void	operator delete (void ptr, void )

void	operator delete (void ptr, const char , int, const char *)

void	operator delete[] (void *ptr)

void	operator delete[] (void ptr, const char , int, const char *)

void *	operator new (size_t sz, const char file, int line, const char func)
	operator new, with debug line info More...

void *	operator new (size_t sz)

void *	operator new (size_t sz, void *ptr)
	placement operator new More...

void *	operator new[] (size_t sz, const char file, int line, const char func)
	array operator new, with debug line info More...

void *	operator new[] (size_t sz)

Detailed Description

Interface used to by the Terrain instance to allocate GPU buffers.

Remarks: This class exists to make it easier to re-use buffers between multiple instances of terrain.

Definition at line 533 of file OgreTerrain.h.

Constructor & Destructor Documentation

Ogre::Terrain::GpuBufferAllocator::GpuBufferAllocator ( )

inline

Definition at line 536 of file OgreTerrain.h.

virtual Ogre::Terrain::GpuBufferAllocator::~GpuBufferAllocator ( )

inlinevirtual

Definition at line 537 of file OgreTerrain.h.

virtual void Ogre::Terrain::GpuBufferAllocator::allocateVertexBuffers	(	Terrain *	forTerrain,
		size_t	numVertices,
		HardwareVertexBufferSharedPtr &	destPos,
		HardwareVertexBufferSharedPtr &	destDelta
	)

pure virtual

Allocate (or reuse) vertex buffers for a terrain LOD.

Parameters

numVertices	The total number of vertices
destPos	Pointer to a vertex buffer for positions, to be bound
destDelta	Pointer to a vertex buffer for deltas, to be bound

virtual void Ogre::Terrain::GpuBufferAllocator::freeAllBuffers ( )

pure virtual

Free any buffers we're holding.

virtual void Ogre::Terrain::GpuBufferAllocator::freeVertexBuffers	(	const HardwareVertexBufferSharedPtr &	posbuf,
		const HardwareVertexBufferSharedPtr &	deltabuf
	)

pure virtual

Free (or return to the pool) vertex buffers for terrain.

virtual HardwareIndexBufferSharedPtr Ogre::Terrain::GpuBufferAllocator::getSharedIndexBuffer	(	uint16	batchSize,
		uint16	vdatasize,
		size_t	vertexIncrement,
		uint16	xoffset,
		uint16	yoffset,
		uint16	numSkirtRowsCols,
		uint16	skirtRowColSkip
	)

pure virtual

Get a shared index buffer for a given number of settings.

Remarks: Since all index structures are the same at the same LOD level and relative position, we can share index buffers. Therefore the buffer returned from this method does not need to be 'freed' like the vertex buffers since it is never owned.

Parameters

batchSize	The batch size along one edge
vdatasize	The size of the referenced vertex data along one edge
vertexIncrement	The number of vertices to increment for each new indexed row / column
xoffset	The x offset from the start of vdatasize, at that resolution
yoffset	The y offset from the start of vdatasize, at that resolution
numSkirtRowsCols	Number of rows and columns of skirts
skirtRowColSkip	The number of rows / cols to skip in between skirts