Base implementation of a render device. More...

Inheritance diagram for Diligent::RenderDeviceBase< BaseInterface >:

Public Member Functions
	RenderDeviceBase (IMemoryAllocator &RawMemAllocator, Uint32 NumDeferredContexts, size_t TextureObjSize, size_t TexViewObjSize, size_t BufferObjSize, size_t BuffViewObjSize, size_t ShaderObjSize, size_t SamplerObjSize, size_t PSOSize, size_t SRBSize)

virtual void	CreateResourceMapping (const ResourceMappingDesc &MappingDesc, IResourceMapping **ppMapping) override final
	Implementation of IRenderDevice::CreateResourceMapping().

virtual const DeviceCaps &	GetDeviceCaps () const override final
	Implementation of IRenderDevice::GetDeviceCaps().

virtual const TextureFormatInfo &	GetTextureFormatInfo (TEXTURE_FORMAT TexFormat) override final
	Implementation of IRenderDevice::GetTextureFormatInfo().

virtual const TextureFormatInfoExt &	GetTextureFormatInfoExt (TEXTURE_FORMAT TexFormat) override final
	Implementation of IRenderDevice::GetTextureFormatInfoExt().

void	SetImmediateContext (IDeviceContext *pImmediateContext)
	Set weak reference to the immediate context.

void	SetDeferredContext (size_t Ctx, IDeviceContext *pDeferredCtx)
	Set weak reference to the deferred context.

size_t	GetNumDeferredContexts () const
	Returns number of deferred contexts.

Protected Member Functions
template<typename TObjectType , typename TObjectDescType , typename TObjectConstructor >
void	CreateDeviceObject (const Char ObjectTypeName, const TObjectDescType &Desc, TObjectType *ppObject, TObjectConstructor ConstructObject)
	Helper template function to facilitate device object creation. More...

Protected Attributes
StateObjectsRegistry< SamplerDesc >	m_SamplersRegistry
	Sampler state registry.

RefCntWeakPtr< IDeviceContext >	m_wpImmediateContext
	Weak reference to the immediate context. Immediate context holds strong reference to the device, so we must use weak reference to avoid circular dependencies.

std::vector< RefCntWeakPtr< IDeviceContext >, STDAllocatorRawMem< RefCntWeakPtr< IDeviceContext > > >	m_wpDeferredContexts
	Weak references to deferred contexts.

FixedBlockMemoryAllocator	m_TexObjAllocator
	Allocator for texture objects.

FixedBlockMemoryAllocator	m_TexViewObjAllocator
	Allocator for texture view objects.

FixedBlockMemoryAllocator	m_BufObjAllocator
	Allocator for buffer objects.

FixedBlockMemoryAllocator	m_BuffViewObjAllocator
	Allocator for buffer view objects.

FixedBlockMemoryAllocator	m_ShaderObjAllocator
	Allocator for shader objects.

FixedBlockMemoryAllocator	m_SamplerObjAllocator
	Allocator for sampler objects.

FixedBlockMemoryAllocator	m_PSOAllocator
	Allocator for pipeline state objects.

FixedBlockMemoryAllocator	m_SRBAllocator
	Allocator for shader resource binding objects.

FixedBlockMemoryAllocator	m_ResMappingAllocator
	Allocator for resource mapping objects.

Detailed Description

Base implementation of a render device.

Template Parameters

BaseInterface - base interface that this class will inheret.

Warning: Render device must NOT hold strong references to any object it creates to avoid circular dependencies. Device context, swap chain and all object the device creates keep strong reference to the device. Device only holds weak reference to the immediate context.

Constructor & Destructor Documentation

template<typename BaseInterface>

Diligent::RenderDeviceBase< BaseInterface >::RenderDeviceBase	(	IMemoryAllocator &	RawMemAllocator,
		Uint32	NumDeferredContexts,
		size_t	TextureObjSize,
		size_t	TexViewObjSize,
		size_t	BufferObjSize,
		size_t	BuffViewObjSize,
		size_t	ShaderObjSize,
		size_t	SamplerObjSize,
		size_t	PSOSize,
		size_t	SRBSize
	)

inline

Parameters

RawMemAllocator	- allocator that will be used to allocate memory for all device objects (including render device itself)
NumDeferredContexts	- number of deferred device contexts
TextureObjSize	- size of the texture object, in bytes
TexViewObjSize	- size of the texture view object, in bytes
BufferObjSize	- size of the buffer object, in bytes
BuffViewObjSize	- size of the buffer view object, in bytes
ShaderObjSize	- size of the shader object, in bytes
SamplerObjSize	- size of the sampler object, in bytes
PSOSize	- size of the pipeline state object, in bytes
SRBSize	- size of the shader resource binding object, in bytes

Remarks: Render device uses fixed block allocators (see FixedBlockMemoryAllocator) to allocate memory for device objects. The object sizes provided to constructor are used to initialize the allocators.

template<typename BaseInterface >

template<typename TObjectType , typename TObjectDescType , typename TObjectConstructor >

void Diligent::RenderDeviceBase< BaseInterface >::CreateDeviceObject	(	const Char *	ObjectTypeName,
		const TObjectDescType &	Desc,
		TObjectType **	ppObject,
		TObjectConstructor	ConstructObject
	)

protected

Helper template function to facilitate device object creation.

Template Parameters

TObjectType	- type of the object being created (IBuffer, ITexture, etc.)
TObjectDescType	- type of the object description structure (BufferDesc, TextureDesc, etc.)
TObjectConstructor	- type of the function that constructs the object

Parameters

ObjectTypeName	- string name of the object type ("buffer", "texture", etc.)
Desc	- object description
ppObject	- memory address where the pointer to the created object will be stored
ConstructObject	- function that constructs the object