Resource state transition barrier description. More...

#include <DeviceContext.h>

Public Member Functions
constexpr	StateTransitionDesc (IDeviceObject _pResourceBefore, IDeviceObject _pResourceAfter) noexcept
	Aliasing barrier.

Public Attributes
IDeviceObject *	pResourceBefore = nullptr
	Previous resource for aliasing transition.

IDeviceObject *	pResource = nullptr
	Resource to transition.

Uint32	FirstMipLevel = 0
	When transitioning a texture, first mip level of the subresource range to transition.

Uint32	MipLevelsCount = REMAINING_MIP_LEVELS
	When transitioning a texture, number of mip levels of the subresource range to transition.

Uint32	FirstArraySlice = 0
	When transitioning a texture, first array slice of the subresource range to transition.

Uint32	ArraySliceCount = REMAINING_ARRAY_SLICES
	When transitioning a texture, number of array slices of the subresource range to transition.

RESOURCE_STATE	OldState = RESOURCE_STATE_UNKNOWN
	Resource state before transition.

RESOURCE_STATE	NewState = RESOURCE_STATE_UNKNOWN
	Resource state after transition.

STATE_TRANSITION_TYPE	TransitionType = STATE_TRANSITION_TYPE_IMMEDIATE
	State transition type, see Diligent::STATE_TRANSITION_TYPE.

STATE_TRANSITION_FLAGS	Flags = STATE_TRANSITION_FLAG_NONE
	State transition flags, see Diligent::STATE_TRANSITION_FLAGS.

Detailed Description

Resource state transition barrier description.

Member Data Documentation

◆ NewState

RESOURCE_STATE Diligent::StateTransitionDesc::NewState = RESOURCE_STATE_UNKNOWN

Resource state after transition.

Must not be Diligent::RESOURCE_STATE_UNKNOWN or Diligent::RESOURCE_STATE_UNDEFINED.

Note: Resource state must be compatible with the context type.

◆ OldState

RESOURCE_STATE Diligent::StateTransitionDesc::OldState = RESOURCE_STATE_UNKNOWN

Resource state before transition.

If this value is Diligent::RESOURCE_STATE_UNKNOWN, internal resource state will be used, which must be defined in this case.

Note: Resource state must be compatible with the context type.

◆ pResource

IDeviceObject* Diligent::StateTransitionDesc::pResource = nullptr

Resource to transition.

Can be ITexture, IBuffer, IBottomLevelAS, ITopLevelAS.

Note: For aliasing transition (Diligent::STATE_TRANSITION_FLAG_ALIASING flag is set), pResource may be null, which indicates that any sparse or normal resource could cause aliasing.

◆ pResourceBefore

IDeviceObject* Diligent::StateTransitionDesc::pResourceBefore = nullptr

Previous resource for aliasing transition.

This member is only used for aliasing transition (Diligent::STATE_TRANSITION_FLAG_ALIASING flag is set), and ignored otherwise, and must point to a texture or a buffer object.

Note: pResourceBefore may be null, which indicates that any sparse or normal resource could cause aliasing.

◆ TransitionType

STATE_TRANSITION_TYPE Diligent::StateTransitionDesc::TransitionType = STATE_TRANSITION_TYPE_IMMEDIATE

State transition type, see Diligent::STATE_TRANSITION_TYPE.

Note: When issuing UAV barrier (i.e. OldState and NewState equal Diligent::RESOURCE_STATE_UNORDERED_ACCESS), TransitionType must be Diligent::STATE_TRANSITION_TYPE_IMMEDIATE.

Public Member Functions