Diligent::DeviceContextBase< BaseInterface > Class Template Reference

Base implementation of the device context. More...

Inheritance diagram for Diligent::DeviceContextBase< BaseInterface >:

Public Member Functions
	DeviceContextBase (IMemoryAllocator &RawMemAllocator, IRenderDevice *pRenderDevice, bool bIsDeferred)
virtual void	SetVertexBuffers (Uint32 StartSlot, Uint32 NumBuffersSet, IBuffer **ppBuffers, Uint32 *pStrides, Uint32 *pOffsets, Uint32 Flags)=0
	Base implementation of IDeviceContext::SetVertexBuffers(); validates parameters and caches references to the buffers.
virtual void	SetPipelineState (IPipelineState *pPipelineState)=0
	Base implementation of IDeviceContext::SetPipelineState(); caches references to the pipeline state object.
bool	CommitShaderResources (IShaderResourceBinding *pShaderResourceBinding, Uint32 Flags, int)
	Base implementation of IDeviceContext::CommitShaderResources(); validates parameters.
virtual void	SetIndexBuffer (IBuffer *pIndexBuffer, Uint32 ByteOffset)=0
	Base implementation of IDeviceContext::SetIndexBuffer(); caches the strong reference to the index buffer.
void	SetViewports (Uint32 NumViewports, const Viewport *pViewports, Uint32 &RTWidth, Uint32 &RTHeight)
	Caches the viewports.
void	SetScissorRects (Uint32 NumRects, const Rect *pRects, Uint32 &RTWidth, Uint32 &RTHeight)
	Caches the scissor rects.
bool	SetRenderTargets (Uint32 NumRenderTargets, ITextureView *ppRenderTargets[], ITextureView *pDepthStencil, Uint32 Dummy=0)
	Caches the render target and depth stencil views. Returns true if any view is different from the cached value and false otherwise.
void	SetSwapChain (ISwapChain *pSwapChain)
	Sets the strong pointer to the swap chain.
ISwapChain *	GetSwapChain ()
	Returns the swap chain.
bool	IsDefaultFBBound ()
	Returns true if currently bound frame buffer is the default frame buffer.
void	GetPipelineState (IPipelineState **ppPSO, float *BlendFactors, Uint32 &StencilRef)
	Returns currently bound pipeline state and blend factors.
void	GetRenderTargets (Uint32 &NumRenderTargets, ITextureView **ppRTVs, ITextureView **ppDSV)
	Returns currently bound render targets.
void	GetViewports (Uint32 &NumViewports, Viewport *pViewports)
	Returns currently set viewports.
IRenderDevice *	GetDevice ()
	Returns the render device.

Protected Member Functions
void	GetRenderTargetSize (Uint32 &RTWidth, Uint32 &RTHeight)
	Returns the size of the currently bound render target.
void	ClearStateCache ()
	Clears all cached resources. More...

Protected Attributes
RefCntAutoPtr< IRenderDevice >	m_pDevice
	Strong reference to the device.
RefCntAutoPtr< ISwapChain >	m_pSwapChain
	Strong reference to the swap chain. Swap chain holds weak reference to the immediate context.
VertexStreamInfo	m_VertexStreams [MaxBufferSlots]
	Vertex streams. Every stream holds strong reference to the buffer.
Uint32	m_NumVertexStreams = 0
	Number of bound vertex streams.
RefCntAutoPtr< IPipelineState >	m_pPipelineState
	Strong reference to the bound pipeline state object.
RefCntAutoPtr< IBuffer >	m_pIndexBuffer
	Strong reference to the bound index buffer.
Uint32	m_IndexDataStartOffset
	Offset from the beginning of the index buffer to the start of the index data, in bytes.
Uint32	m_StencilRef
	Current stencil reference value.
Float32	m_BlendFactors [4]
	Curent blend factors.
Viewport	m_Viewports [MaxRenderTargets]
	Current viewports.
Uint32	m_NumViewports = 0
	Number of current viewports.
Rect	m_ScissorRects [MaxRenderTargets]
	Current scissor rects.
Uint32	m_NumScissorRects = 0
	Number of current scissor rects.
RefCntAutoPtr< ITextureView >	m_pBoundRenderTargets [MaxRenderTargets]
	Vector of strong references to the bound render targets.
Uint32	m_NumBoundRenderTargets = 0
	Number of bound render targets.
RefCntAutoPtr< ITextureView >	m_pBoundDepthStencil
	Strong references to the bound depth stencil view.

Detailed Description

template<typename BaseInterface>
class Diligent::DeviceContextBase< BaseInterface >

Base implementation of the device context.

Template Parameters

BaseInterface

- base interface that this class will inheret.

Remarks

Device context keeps strong references to all objects currently bound to the pipeline: buffers, states, samplers, shaders, etc. The context also keeps strong references to the device and the swap chain.

Constructor & Destructor Documentation

template<typename BaseInterface>

Diligent::DeviceContextBase< BaseInterface >::DeviceContextBase ( IMemoryAllocator &  RawMemAllocator, IRenderDevice *  pRenderDevice, bool  bIsDeferred  )

inline

Parameters

RawMemAllocator	- allocator that was used to allocate memory for this instance of the device context object.
pRenderDevice	- render device.
bIsDeferred	- flag indicating if this instance is a deferred context

Member Function Documentation

template<typename BaseInterface >

void Diligent::DeviceContextBase< BaseInterface >::ClearStateCache ( )

inlineprotected

Clears all cached resources.

Vector of strong references to bound render targets