Standard implementation of a buffer allocator which re-uses buffers. More...

#include <OgreTerrain.h>

Inheritance diagram for Ogre::Terrain::DefaultGpuBufferAllocator:

Collaboration diagram for Ogre::Terrain::DefaultGpuBufferAllocator:

Public Member Functions
	DefaultGpuBufferAllocator ()

	~DefaultGpuBufferAllocator ()

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

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

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

HardwareIndexBufferSharedPtr	getSharedIndexBuffer (uint16 batchSize, uint16 vdatasize, size_t vertexIncrement, uint16 xoffset, uint16 yoffset, uint16 numSkirtRowsCols, uint16 skirtRowColSkip)
	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)

void	warmStart (size_t numInstances, uint16 terrainSize, uint16 maxBatchSize, uint16 minBatchSize)
	'Warm start' the allocator based on needing x instances of terrain with the given configuration. More...

Protected Types
typedef map< uint32, HardwareIndexBufferSharedPtr > ::type	IBufMap

typedef list < HardwareVertexBufferSharedPtr > ::type	VBufList

Protected Member Functions
HardwareVertexBufferSharedPtr	getVertexBuffer (VBufList &list, size_t vertexSize, size_t numVertices)

uint32	hashIndexBuffer (uint16 batchSize, uint16 vdatasize, size_t vertexIncrement, uint16 xoffset, uint16 yoffset, uint16 numSkirtRowsCols, uint16 skirtRowColSkip)

Protected Attributes
VBufList	mFreeDeltaBufList

VBufList	mFreePosBufList

IBufMap	mSharedIBufMap

Detailed Description

Standard implementation of a buffer allocator which re-uses buffers.

Definition at line 566 of file OgreTerrain.h.

Member Typedef Documentation

typedef map<uint32, HardwareIndexBufferSharedPtr>::type Ogre::Terrain::DefaultGpuBufferAllocator::IBufMap

protected

Definition at line 588 of file OgreTerrain.h.

typedef list<HardwareVertexBufferSharedPtr>::type Ogre::Terrain::DefaultGpuBufferAllocator::VBufList

protected

Definition at line 585 of file OgreTerrain.h.

Constructor & Destructor Documentation

Ogre::Terrain::DefaultGpuBufferAllocator::DefaultGpuBufferAllocator ( )

Ogre::Terrain::DefaultGpuBufferAllocator::~DefaultGpuBufferAllocator ( )

Member Function Documentation

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

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

Implements Ogre::Terrain::GpuBufferAllocator.

void Ogre::Terrain::DefaultGpuBufferAllocator::freeAllBuffers ( )

virtual

Free any buffers we're holding.

Implements Ogre::Terrain::GpuBufferAllocator.

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

virtual

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

Implements Ogre::Terrain::GpuBufferAllocator.

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

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

Implements Ogre::Terrain::GpuBufferAllocator.

HardwareVertexBufferSharedPtr Ogre::Terrain::DefaultGpuBufferAllocator::getVertexBuffer	(	VBufList &	list,
		size_t	vertexSize,
		size_t	numVertices
	)

protected

uint32 Ogre::Terrain::DefaultGpuBufferAllocator::hashIndexBuffer	(	uint16	batchSize,
		uint16	vdatasize,
		size_t	vertexIncrement,
		uint16	xoffset,
		uint16	yoffset,
		uint16	numSkirtRowsCols,
		uint16	skirtRowColSkip
	)