Represents constant buffers (also known as Uniform Buffers in GL) More...

#include <OgreConstBufferPacked.h>

Inheritance diagram for Ogre::ConstBufferPacked:

Public Member Functions
	ConstBufferPacked (size_t internalBufferStartBytes, size_t numElements, uint32 bytesPerElement, uint32 numElementsPadding, BufferType bufferType, void initialData, bool keepAsShadow, VaoManager vaoManager, BufferInterface *bufferInterface)

size_t	_getFinalBufferStart () const

size_t	_getInternalBufferStart () const

size_t	_getInternalNumElements () const

size_t	_getInternalTotalSizeBytes () const

void	_setBufferInterface (BufferInterface *bufferInterface)
	For internal use. More...

void	_setShadowCopy (void *copy)
	This will not delete the existing shadow copy so it can be used for other purposes if it is not needed call OGRE_FREE_SIMD( m->getShadowCopy(), MEMCATEGORY_GEOMETRY ) before calling this function. More...

void	advanceFrame ()

virtual void	bindBufferCS (uint16 slot)=0

virtual void	bindBufferDS (uint16 slot)=0

virtual void	bindBufferGS (uint16 slot)=0

virtual void	bindBufferHS (uint16 slot)=0

virtual void	bindBufferPS (uint16 slot)=0

virtual void	bindBufferVS (uint16 slot)=0
	Binds the constant buffer to the given slot in the Vertex/Pixel/Geometry/Hull/Domain/Compute Shader. More...

void	copyTo (BufferPacked *dstBuffer, size_t dstElemStart=0, size_t srcElemStart=0, size_t srcNumElems=std::numeric_limits< size_t >::max())
	Copies the contents of this buffer to another, using GPU -> GPU transfers. More...

BufferInterface *	getBufferInterface () const

BufferPackedTypes	getBufferPackedType () const override
	Useful to query which one is the derived class. More...

BufferType	getBufferType () const

size_t	getBytesPerElement () const

MappingState	getMappingState () const
	Returns the mapping state. More...

size_t	getNumElements () const

virtual BufferPacked *	getOriginalBufferType ()
	If this buffer has been reinterpreted from an UavBufferPacked, returns the original version, otherwise returns 'this'. More...

const void *	getShadowCopy () const

size_t	getTotalSizeBytes () const

bool	isCurrentlyMapped () const
	Returns whether the buffer is currently mapped. More...

virtual bool	isTextureGpu () const

void *RESTRICT_ALIAS_RETURN	map (size_t elementStart, size_t elementCount, bool bAdvanceFrame=true)
	Maps the specified region to a pointer the CPU can access. More...

void	operator delete (void *ptr)

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

void	operator delete (void ptr, void )

void	operator delete[] (void *ptr)

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

void *	operator new (size_t sz)

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 *ptr)
	placement operator new More...

void *	operator new[] (size_t sz)

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

AsyncTicketPtr	readRequest (size_t elementStart, size_t elementCount)
	Async data read request. More...

void	regressFrame ()
	Performs the opposite of. More...

void	unmap (UnmapOptions unmapOption, size_t flushStartElem=0, size_t flushSizeElem=0)
	Unmaps or flushes the region mapped with. More...

virtual void	upload (const void *data, size_t elementStart, size_t elementCount)
	Sends the provided data to the GPU. More...

Detailed Description

Represents constant buffers (also known as Uniform Buffers in GL)

Constructor & Destructor Documentation

◆ ConstBufferPacked()

Ogre::ConstBufferPacked::ConstBufferPacked	(	size_t	internalBufferStartBytes,
		size_t	numElements,
		uint32	bytesPerElement,
		uint32	numElementsPadding,
		BufferType	bufferType,
		void *	initialData,
		bool	keepAsShadow,
		VaoManager *	vaoManager,
		BufferInterface *	bufferInterface
	)

inline

Member Function Documentation

◆ _getFinalBufferStart()

size_t Ogre::BufferPacked::_getFinalBufferStart ( ) const

inlineinherited

◆ _getInternalBufferStart()

size_t Ogre::BufferPacked::_getInternalBufferStart ( ) const

inlineinherited

◆ _getInternalNumElements()

size_t Ogre::BufferPacked::_getInternalNumElements ( ) const

inlineinherited

◆ _getInternalTotalSizeBytes()

size_t Ogre::BufferPacked::_getInternalTotalSizeBytes ( ) const

inlineinherited

◆ _setBufferInterface()

void Ogre::BufferPacked::_setBufferInterface ( BufferInterface * bufferInterface )

inherited

For internal use.

◆ _setShadowCopy()

void Ogre::BufferPacked::_setShadowCopy ( void * copy )

inherited

This will not delete the existing shadow copy so it can be used for other purposes if it is not needed call OGRE_FREE_SIMD( m->getShadowCopy(), MEMCATEGORY_GEOMETRY ) before calling this function.

This will also not automatically upload the shadow data to the GPU. The user must call upload or use a staging buffer themselves to achieve this.

◆ advanceFrame()

void Ogre::BufferPacked::advanceFrame ( )

inherited

See also: map. Do NOT call this function more than once per frame, or if you've called map( advanceFrame = true )

◆ bindBufferCS()

virtual void Ogre::ConstBufferPacked::bindBufferCS ( uint16 slot )

pure virtual

Implemented in Ogre::VulkanConstBufferPacked, Ogre::MetalConstBufferPacked, Ogre::GL3PlusConstBufferPacked, Ogre::D3D11ConstBufferPacked, Ogre::NULLConstBufferPacked, and Ogre::GLES2ConstBufferPacked.

◆ bindBufferDS()

virtual void Ogre::ConstBufferPacked::bindBufferDS ( uint16 slot )

pure virtual

Implemented in Ogre::MetalConstBufferPacked, Ogre::VulkanConstBufferPacked, Ogre::GL3PlusConstBufferPacked, Ogre::D3D11ConstBufferPacked, Ogre::NULLConstBufferPacked, and Ogre::GLES2ConstBufferPacked.

◆ bindBufferGS()

virtual void Ogre::ConstBufferPacked::bindBufferGS ( uint16 slot )

pure virtual

Implemented in Ogre::MetalConstBufferPacked, Ogre::VulkanConstBufferPacked, Ogre::GL3PlusConstBufferPacked, Ogre::D3D11ConstBufferPacked, Ogre::NULLConstBufferPacked, and Ogre::GLES2ConstBufferPacked.

◆ bindBufferHS()

virtual void Ogre::ConstBufferPacked::bindBufferHS ( uint16 slot )

pure virtual

Implemented in Ogre::MetalConstBufferPacked, Ogre::VulkanConstBufferPacked, Ogre::GL3PlusConstBufferPacked, Ogre::D3D11ConstBufferPacked, Ogre::NULLConstBufferPacked, and Ogre::GLES2ConstBufferPacked.

◆ bindBufferPS()

virtual void Ogre::ConstBufferPacked::bindBufferPS ( uint16 slot )

pure virtual

Implemented in Ogre::VulkanConstBufferPacked, Ogre::MetalConstBufferPacked, Ogre::GL3PlusConstBufferPacked, Ogre::D3D11ConstBufferPacked, Ogre::NULLConstBufferPacked, and Ogre::GLES2ConstBufferPacked.

◆ bindBufferVS()

virtual void Ogre::ConstBufferPacked::bindBufferVS ( uint16 slot )

pure virtual

Binds the constant buffer to the given slot in the Vertex/Pixel/Geometry/Hull/Domain/Compute Shader.

Remarks: Not all RS API separate by shader stage. For best compatibility, don't assign two different buffers at the same slot for different stages (just leave the slot empty on the stages you don't use).

Parameters

slot	The slot to asign this constant buffer. In D3D11 it's called 'slot'. In GLSL it's called it's called 'binding'

Implemented in Ogre::VulkanConstBufferPacked, Ogre::MetalConstBufferPacked, Ogre::GL3PlusConstBufferPacked, Ogre::D3D11ConstBufferPacked, Ogre::NULLConstBufferPacked, and Ogre::GLES2ConstBufferPacked.

◆ copyTo()

void Ogre::BufferPacked::copyTo	(	BufferPacked *	dstBuffer,
		size_t	dstElemStart = `0`,
		size_t	srcElemStart = `0`,
		size_t	srcNumElems = `std::numeric_limits< size_t >::max()`
	)

inherited

Copies the contents of this buffer to another, using GPU -> GPU transfers.

In simple terms it is similar to doing: memcpy( dstBuffer + dstElemStart, this + srcElemStart, srcNumElems );

Remarks: When both src and dst have different values for BufferPacked::getBytesPerElement() then srcNumElems * this->getBytesPerElement() must be divisible by dstBuffer->getBytesPerElement()

If dst has a shadow buffer, then src must have it too.

Parameters

dstBuffer	Buffer to copy to. Must be of type BT_DEFAULT
dstElemStart	The offset for dstBuffer. It must be in the unit of measure of dstBuffer. e.g. actual offset in bytes is dstElemStart * dstBuffer->getBytesPerElement()
srcElemStart	The offset of this buffer to start from
srcNumElems	The number of elements to copy, in units of measure of srcBuffer. When this value is out of bounds, it gets clamped. See remarks.

◆ getBufferInterface()

BufferInterface* Ogre::BufferPacked::getBufferInterface ( ) const

inlineinherited

◆ getBufferPackedType()

BufferPackedTypes Ogre::ConstBufferPacked::getBufferPackedType ( ) const

inlineoverridevirtual

Useful to query which one is the derived class.

Implements Ogre::BufferPacked.

References Ogre::BP_TYPE_CONST.

◆ getBufferType()

BufferType Ogre::BufferPacked::getBufferType ( ) const

inlineinherited

◆ getBytesPerElement()

size_t Ogre::BufferPacked::getBytesPerElement ( ) const

inlineinherited

◆ getMappingState()

MappingState Ogre::BufferPacked::getMappingState ( ) const

inlineinherited

Returns the mapping state.

Note that if you call map with MS_PERSISTENT_INCOHERENT or MS_PERSISTENT_COHERENT, then call unmap( UO_KEEP_PERSISTENT ); the returned value will still be MS_PERSISTENT_INCOHERENT/_COHERENT when persistent mapping is supported. This differs from isCurrentlyMapped

◆ getNumElements()

size_t Ogre::BufferPacked::getNumElements ( ) const

inlineinherited

◆ getOriginalBufferType()

virtual BufferPacked* Ogre::BufferPacked::getOriginalBufferType ( )

virtualinherited

If this buffer has been reinterpreted from an UavBufferPacked, returns the original version, otherwise returns 'this'.

◆ getShadowCopy()

const void* Ogre::BufferPacked::getShadowCopy ( ) const

inlineinherited

◆ getTotalSizeBytes()

size_t Ogre::BufferPacked::getTotalSizeBytes ( ) const

inlineinherited

◆ isCurrentlyMapped()

bool Ogre::BufferPacked::isCurrentlyMapped ( ) const

inherited

Returns whether the buffer is currently mapped.

If you've persistently mapped the buffer and then called unmap( UO_KEEP_PERSISTENT ); this function will return false; which differs from getMappingState's behavior.

◆ isTextureGpu()

virtual bool Ogre::GpuTrackedResource::isTextureGpu ( ) const

inlinevirtualinherited

Reimplemented in Ogre::TextureGpu.

◆ map()

void* RESTRICT_ALIAS_RETURN Ogre::BufferPacked::map	(	size_t	elementStart,
		size_t	elementCount,
		bool	bAdvanceFrame = `true`
	)

inherited

Maps the specified region to a pointer the CPU can access.

Only dynamic buffers can use this function. The region [elementStart; elementStart + elementCount) will be mapped.

Remarks: You can only map once per frame, regardless of parameters (except for advanceFrame). map( 0, 1 ) followed by map( 1, 1 ); is invalid. If you plan modifying elements 0 and 1; you should call map( 0, 2 )

: Note that even if you use persistent mapping, you still need to call

See also: unmap.

Parameters

elementStart	Start of the region to be mapped, in elements. Normally you want this to be 0.
elementCount	Length of the region to map, in elements.

See also: getNumElements to map the whole range. Can't be 0.

Parameters

bAdvanceFrame When true, the Buffer will be usable after unmapping it (or earlier if persistent mapped). However you won't be able to call map() again until the next frame. Calling this with false allows to call map multiple times. However ater calling unmap, you must call advanceFrame. THIS IS ONLY FOR VERY ADVANCED USERS.

◆ operator delete() [1/3]

template<class Alloc >

void Ogre::AllocatedObject< Alloc >::operator delete ( void * ptr )

inlineinherited

◆ operator delete() [2/3]

template<class Alloc >

void Ogre::AllocatedObject< Alloc >::operator delete	(	void *	ptr,
		const char *	,
		int	,
		const char *
	)

inlineinherited

◆ operator delete() [3/3]

template<class Alloc >

void Ogre::AllocatedObject< Alloc >::operator delete	(	void *	ptr,
		void *
	)

inlineinherited

◆ operator delete[]() [1/2]

template<class Alloc >

void Ogre::AllocatedObject< Alloc >::operator delete[] ( void * ptr )

inlineinherited

◆ operator delete[]() [2/2]

template<class Alloc >

void Ogre::AllocatedObject< Alloc >::operator delete[]	(	void *	ptr,
		const char *	,
		int	,
		const char *
	)

inlineinherited

◆ operator new() [1/3]

template<class Alloc >

void* Ogre::AllocatedObject< Alloc >::operator new ( size_t sz )

inlineinherited

◆ operator new() [2/3]

template<class Alloc >

void* Ogre::AllocatedObject< Alloc >::operator new	(	size_t	sz,
		const char *	file,
		int	line,
		const char *	func
	)

inlineinherited

operator new, with debug line info

◆ operator new() [3/3]

template<class Alloc >

void* Ogre::AllocatedObject< Alloc >::operator new	(	size_t	sz,
		void *	ptr
	)

inlineinherited

placement operator new

◆ operator new[]() [1/2]

template<class Alloc >

void* Ogre::AllocatedObject< Alloc >::operator new[] ( size_t sz )

inlineinherited

◆ operator new[]() [2/2]

template<class Alloc >

void* Ogre::AllocatedObject< Alloc >::operator new[]	(	size_t	sz,
		const char *	file,
		int	line,
		const char *	func
	)

inlineinherited

array operator new, with debug line info

◆ readRequest()

AsyncTicketPtr Ogre::BufferPacked::readRequest	(	size_t	elementStart,
		size_t	elementCount
	)

inherited

Async data read request.

A ticket will be returned. Once the async transfer finishes, you can use the ticket to read the data from CPU. @See AsyncTicket

◆ regressFrame()

void Ogre::BufferPacked::regressFrame ( )

inherited

Performs the opposite of.

See also: advanceFrame. Only call this after having called advanceFrame. i.e. restore the buffer to the state it was before calling advanceFrame.

◆ unmap()

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

inherited

Unmaps or flushes the region mapped with.

See also: map. Alternatively, you can flush a smaller region (i.e. you didn't know which regions you were to update when mapping, but now that you're done, you know). The region being flushed is [flushStart; flushStart + flushSize)

Parameters

unmapOption	When using persistent mapping, UO_KEEP_PERSISTENT will keep the map alive; but you will have to call map again to use it. This requirement allows Ogre to: Synchronize if needed (avoid mapping a region that is still in use) Emulate persistent mapping on Hardware/Drivers that don't support it.
flushStartElem	In elements, 0-based index (based on the mapped region) on where to start flushing from. Default is 0.
flushSizeElem	The length of the flushing region, which can't be bigger than 'elementCount' passed to

See also: map. When this value is 0, we flush until the end of the buffer starting from flushStartElem

◆ upload()

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

virtualinherited

Sends the provided data to the GPU.

Parameters

data	The data to transfer to the GPU. Caller is responsible for freeing the pointer. "data" starts at offset zero. i.e. dst[elementStart * mBytesPerElement] = data[0];
elementStart	The start region, usually zero.
elementCount	Size, in number of elements, of data. Must be less than @getNumElements - elementStart

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

OgreConstBufferPacked.h

Public Member Functions

Detailed Description

Constructor & Destructor Documentation

◆ ConstBufferPacked()

Member Function Documentation

◆ _getFinalBufferStart()

◆ _getInternalBufferStart()

◆ _getInternalNumElements()

◆ _getInternalTotalSizeBytes()

◆ _setBufferInterface()

◆ _setShadowCopy()

◆ advanceFrame()

◆ bindBufferCS()

◆ bindBufferDS()

◆ bindBufferGS()

◆ bindBufferHS()

◆ bindBufferPS()

◆ bindBufferVS()

◆ copyTo()

◆ getBufferInterface()

◆ getBufferPackedType()

◆ getBufferType()

◆ getBytesPerElement()

◆ getMappingState()

◆ getNumElements()

◆ getOriginalBufferType()

◆ getShadowCopy()

◆ getTotalSizeBytes()

◆ isCurrentlyMapped()

◆ isTextureGpu()

◆ map()

◆ operator delete() [1/3]

◆ operator delete() [2/3]

◆ operator delete() [3/3]

◆ operator delete[]() [1/2]

◆ operator delete[]() [2/2]

◆ operator new() [1/3]

◆ operator new() [2/3]

◆ operator new() [3/3]

◆ operator new[]() [1/2]

◆ operator new[]() [2/2]

◆ readRequest()

◆ regressFrame()

◆ unmap()

◆ upload()