|
Module |
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|
Header |
/Engine/Source/Runtime/RHI/Public/RHI.h |
|
Include |
#include "RHI.h" |
enum ERHIAccess
{
Unknown = 0,
CPURead = 1 << 0,
Present = 1 << 1,
IndirectArgs = 1 << 2,
VertexOrIndexBuffer = 1 << 3,
SRVCompute = 1 << 4,
SRVGraphics = 1 << 5,
CopySrc = 1 << 6,
ResolveSrc = 1 << 7,
DSVRead = 1 << 8,
UAVCompute = 1 << 9,
UAVGraphics = 1 << 10,
RTV = 1 << 11,
CopyDest = 1 << 12,
ResolveDst = 1 << 13,
DSVWrite = 1 << 14,
ShadingRateSource = 1 << 15,
Last = DSVWrite,
None = Unknown,
Mask = (Last << 1) - 1,
SRVMask = SRVCompute | SRVGraphics,
UAVMask = UAVCompute | UAVGraphics,
ReadOnlyExclusiveMask = CPURead | Present | IndirectArgs | VertexOrIndexBuffer | SRVGraphics | SRVCompute | CopySrc | ResolveSrc,
ReadOnlyMask = ReadOnlyExclusiveMask | DSVRead | ShadingRateSource,
ReadableMask = ReadOnlyMask | UAVMask,
WriteOnlyExclusiveMask = RTV | CopyDest | ResolveDst,
WriteOnlyMask = WriteOnlyExclusiveMask | DSVWrite,
WritableMask = WriteOnlyMask | UAVMask,
EReadable = ReadOnlyMask,
EWritable = WritableMask,
ERWBarrier = CopySrc | CopyDest | SRVCompute | SRVGraphics | UAVCompute | UAVGraphics,
ERWNoBarrier = ERWBarrier,
}
|
Name |
Description |
|---|---|
|
Unknown |
Used when the previous state of a resource is not known, which implies we have to flush all GPU caches etc. |
|
CPURead |
Read states. |
|
Present |
|
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IndirectArgs |
|
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VertexOrIndexBuffer |
|
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SRVCompute |
|
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SRVGraphics |
|
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CopySrc |
|
|
ResolveSrc |
|
|
DSVRead |
|
|
UAVCompute |
Read-write states. |
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UAVGraphics |
|
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RTV |
|
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CopyDest |
|
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ResolveDst |
|
|
DSVWrite |
|
|
ShadingRateSource |
Custom (special) states: |
|
Last |
|
|
None |
|
|
Mask |
|
|
SRVMask |
A mask of the two possible SRV states. |
|
UAVMask |
A mask of the two possible UAV states. |
|
ReadOnlyExclusiveMask |
A mask of all bits representing read-only states which cannot be combined with other write states. |
|
ReadOnlyMask |
A mask of all bits representing read-only states which may be combined with other write states. |
|
ReadableMask |
A mask of all bits representing readable states which may also include writable states. |
|
WriteOnlyExclusiveMask |
A mask of all bits representing write-only states which cannot be combined with other read states. |
|
WriteOnlyMask |
A mask of all bits representing write-only states which may be combined with other read states. |
|
WritableMask |
A mask of all bits representing writable states which may also include readable states. |
|
EReadable |
These are for compatibility with the legacy RHITransitionResources API implementation. Do not use these when writing new rendering code/features. |
|
EWritable |
|
|
ERWBarrier |
|
|
ERWNoBarrier |