BufferImpl Class Reference

A D3D12-based Buffer implementation. More...

#include <Buffer12.h>

Inherits Buffer.

Public Member Functions
void	updateData (const void *data, size_t size) override
	Update buffer data.
void	updateSubData (const void *data, size_t offset, size_t size) override
	Update buffer sub-region data.
void	usingDefaultStoredData (bool needDefaultStoredData) override
	By default, static buffer data will automatically stored when it comes to foreground.
const DescriptorHandle *	getSRV () const
	Get (and lazily create) a shader-resource view descriptor for this storage buffer.
const DescriptorHandle *	getUAV () const
	Get (and lazily create) an unordered-access view descriptor for this storage buffer.
Public Member Functions inherited from Buffer
size_t	getSize () const
	Get buffer size in bytes.
uint32_t	getStride () const
	Get the logical storage element stride in bytes.
Public Member Functions inherited from Object
void	retain ()
	Retains the ownership.
void	release ()
	Releases the ownership immediately.
Object *	autorelease ()
	Releases the ownership sometime soon automatically.
unsigned int	getReferenceCount () const
	Returns the Object's current reference count.
uint64_t	getObjectID () const noexcept
	Returns the process-local diagnostic identifier assigned at construction.
virtual	~Object ()
	Destructor.

Detailed Description

A D3D12-based Buffer implementation.

Notes:

• STATIC/IMMUTABLE live in DEFAULT heap, written via upload buffer + command list copy
• DYNAMIC lives in UPLOAD heap, mapped for CPU writes

For dynamic buffers we allocate per-frame backing in the UPLOAD heap to avoid CPU overwriting GPU-in-flight memory when multiple frames are in flight.

Member Function Documentation

updateData()

void updateData ( const void * data, size_t size )

overridevirtual

Update buffer data.

Parameters

data	Specifies a pointer to data that will be copied into the data store for initialization.
size	Specifies the size in bytes of the data store region being replaced.

See also

updateSubData(void* data, unsigned int offset, unsigned int size)

Implements Buffer.

updateSubData()

void updateSubData ( const void * data, size_t offset, size_t size )

overridevirtual

Update buffer sub-region data.

Parameters

data	Specifies a pointer to the new data that will be copied into the data store.
offset	Specifies the offset into the buffer object's data store where data replacement will begin, measured in bytes.
size	Specifies the size in bytes of the data store region being replaced.

See also

updateData(void* data, unsigned int size)

Implements Buffer.

usingDefaultStoredData()

void usingDefaultStoredData ( bool needDefaultStoredData )

overridevirtual

By default, static buffer data will automatically stored when it comes to foreground.

This function is used to indicate whether external data needs to be used to update the buffer instead of using the default stored data.

Parameters

needDefaultStoredData

Specifies whether to use the default stored data.

Implements Buffer.

getSRV()

const DescriptorHandle * getSRV

(

)

const

Get (and lazily create) a shader-resource view descriptor for this storage buffer.

Returns

The CPU descriptor handle, or null if unavailable.

getUAV()

const DescriptorHandle * getUAV

(

)

const

Get (and lazily create) an unordered-access view descriptor for this storage buffer.

Returns

The CPU descriptor handle, or null if unavailable.

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

• Buffer12.h