D3D12DDI_RESOURCE_BARRIER_FLAGS enumeration (d3d12umddi.h)

D3D12DDI_RESOURCE_BARRIER_FLAGS contains legacy resource barrier flags.

Syntax

typedef enum D3D12DDI_RESOURCE_BARRIER_FLAGS {
  D3D12DDI_RESOURCE_BARRIER_FLAG_NONE = 0x0,
  D3D12DDI_RESOURCE_BARRIER_FLAG_BEGIN_ONLY = 0x1,
  D3D12DDI_RESOURCE_BARRIER_FLAG_END_ONLY = 0x2,
  D3D12DDI_RESOURCE_BARRIER_FLAG_0022_ATOMIC_COPY = 0x4,
  D3D12DDI_RESOURCE_BARRIER_FLAG_0022_ALIASING = 0x8
} ;

Constants

D3D12DDI_RESOURCE_BARRIER_FLAG_NONE Value: 0x0 No flag value.
D3D12DDI_RESOURCE_BARRIER_FLAG_BEGIN_ONLY Value: 0x1 Indicates an acquire. This starts a barrier transition in a new state, putting a resource in a temporary no-access condition. This flag is relevant only for ranged barriers.
D3D12DDI_RESOURCE_BARRIER_FLAG_END_ONLY Value: 0x2 Indicates a release. This barrier completes a transition, setting a new state and restoring active access to a resource. This flag is relevant only for ranged barriers.
D3D12DDI_RESOURCE_BARRIER_FLAG_0022_ATOMIC_COPY Value: 0x4 Indicates that ranged barriers are associated with a parameter of an atomic copy operation.
D3D12DDI_RESOURCE_BARRIER_FLAG_0022_ALIASING Value: 0x8 Indicates that an aliasing barrier has been converted to a ranged barrier.

Remarks

The absence of both D3D12DDI_RESOURCE_BARRIER_FLAG_BEGIN_ONLY and D3D12DDI_RESOURCE_BARRIER_FLAG_END_ONLY denotes both an acquire and release.

During an acquire, GPU caches may need to be explicitly invalidated. During a release, GPU caches may need to be explicitly flushed.

Requirements

Requirement	Value
Header	d3d12umddi.h (include D3d12umddi.h)

See also

D3D12DDI_RANGED_BARRIER_FLAGS_0094