Ogre::D3D11CompatBufferInterface Class Reference

In D3D11, const buffers can't be bound by offset. More...

#include <OgreD3D11CompatBufferInterface.h>

Inheritance diagram for Ogre::D3D11CompatBufferInterface:

Public Member Functions
	D3D11CompatBufferInterface (size_t vboPoolIdx, ID3D11Buffer *d3dBuffer, D3D11Device &device)
	~D3D11CompatBufferInterface () override
void	_ensureDelayedImmutableBuffersAreReady () override
virtual void	_notifyBuffer (BufferPacked *buffer)
void	advanceFrame () override
void	copyTo (BufferInterface *dstBuffer, size_t dstOffsetBytes, size_t srcOffsetBytes, size_t sizeBytes) override
BufferPacked *	getBufferPacked ()
ID3D11Buffer *	getVboName () const
size_t	getVboPoolIndex ()
void *RESTRICT_ALIAS_RETURN	map (size_t elementStart, size_t elementCount, MappingState prevMappingState, bool advanceFrame=true) override
void	regressFrame () override
void	unmap (UnmapOptions unmapOption, size_t flushStartElem=0, size_t flushSizeElem=0) override
void	upload (const void *data, size_t elementStart, size_t elementCount)

Detailed Description

In D3D11, const buffers can't be bound by offset.

Their size at creation defines the size to be bound to the shader, and the max limit is 64kb. This is unless we're using D3D11.1 on Windows 8.1; which for simplicity we treat it the same as D3D11.

This limitation prevents us from allocating 3x size for triple buffering.

Therefore we need the traditional scheme of mapping with NO_OVERWRITE and then use DISCARD when we've filled the buffer.

In D3D11.0, only index and vertex buffers can be mapped with NO_OVERWRITE. That leaves only DISCARD to be used on those systems. NO_OVERWRITE is used if used D3D 11.1 though.

This buffer interface is for compatibility with these systems.

Constructor & Destructor Documentation

D3D11CompatBufferInterface()

Ogre::D3D11CompatBufferInterface::D3D11CompatBufferInterface	(	size_t	vboPoolIdx,
		ID3D11Buffer *	d3dBuffer,
		D3D11Device &	device
	)

~D3D11CompatBufferInterface()

Ogre::D3D11CompatBufferInterface::~D3D11CompatBufferInterface ( )

override

Member Function Documentation

_ensureDelayedImmutableBuffersAreReady()

void Ogre::D3D11BufferInterfaceBase::_ensureDelayedImmutableBuffersAreReady ( )

overridevirtualinherited

Reimplemented from Ogre::BufferInterface.

_notifyBuffer()

virtual void Ogre::BufferInterface::_notifyBuffer ( BufferPacked *  buffer )

inlinevirtualinherited

Reimplemented in Ogre::NULLBufferInterface.

advanceFrame()

void Ogre::D3D11CompatBufferInterface::advanceFrame ( )

overridevirtual

Implements Ogre::BufferInterface.

copyTo()

void Ogre::D3D11BufferInterfaceBase::copyTo ( BufferInterface *  dstBuffer, size_t  dstOffsetBytes, size_t  srcOffsetBytes, size_t  sizeBytes  )

overridevirtualinherited

Implements Ogre::BufferInterface.

getBufferPacked()

BufferPacked* Ogre::BufferInterface::getBufferPacked ( )

inlineinherited

getVboName()

ID3D11Buffer* Ogre::D3D11BufferInterfaceBase::getVboName ( ) const

inlineinherited

References Ogre::ComPtr< T >::Get().

getVboPoolIndex()

size_t Ogre::D3D11BufferInterfaceBase::getVboPoolIndex ( )

inlineinherited

map()

void* RESTRICT_ALIAS_RETURN Ogre::D3D11CompatBufferInterface::map ( size_t  elementStart, size_t  elementCount, MappingState  prevMappingState, bool  advanceFrame = true  )

overridevirtual

Implements Ogre::BufferInterface.

regressFrame()

void Ogre::D3D11CompatBufferInterface::regressFrame ( )

overridevirtual

Implements Ogre::BufferInterface.

unmap()

void Ogre::D3D11CompatBufferInterface::unmap ( UnmapOptions  unmapOption, size_t  flushStartElem = 0, size_t  flushSizeElem = 0  )

overridevirtual

Implements Ogre::BufferInterface.

upload()

void Ogre::BufferInterface::upload ( const void *  data, size_t  elementStart, size_t  elementCount  )

inherited

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The documentation for this class was generated from the following file:

• OgreD3D11CompatBufferInterface.h