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Refactor RenderGraph barrier/state tracking system

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Major overhaul of resource barrier and state tracking in RenderGraph:
- Introduce ResourceBarrierData for explicit (layout, access, sync) tracking.
- Separate aliasing and transition barriers; explicit aliasing support.
- Remove BufferHint; infer buffer usage from BufferUsage flags.
- Update TextureAccess/BufferAccess to include usage requirements.
- Improve enums (BarrierSync, BarrierAccess, BarrierLayout) for D3D12 alignment.
- Update D3D12CommandBuffer to use new barrier data and error handling.
- Make D3D12DescriptorHeap a class; add ReleaseSampler to IResourceDatabase.
- Reset resource pools and aliasing managers each frame.
- Batch and flush barriers efficiently per pass.
- Update HLSL mesh shader macros to [NumThreads].
- Remove obsolete code and improve documentation.
This refactor improves correctness, extensibility, and prepares for advanced features.
This commit is contained in:
Misaki
2026-01-22 20:51:58 +09:00
parent 139312d73b
commit 4173ff2432
18 changed files with 395 additions and 488 deletions
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24
Ghost.Graphics/D3D12/D3D12CommandBuffer.cs
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@@ -248,7 +248,15 @@ internal unsafe class D3D12CommandBuffer : ICommandBuffer
break;
case BarrierType.Buffer:
{
var resource = _resourceDatabase.GetResource(desc.Resource);
var r = _resourceDatabase.GetResourceRecord(desc.Resource);
if (r.IsFailure)
{
RecordError(nameof(ResourceBarrier), r.Error);
continue;
}
ref var record = ref r.Value;
var resource = record.ResourcePtr;
pBufferBarriers[bufferIndex++] = new D3D12_BUFFER_BARRIER
{
SyncBefore = (D3D12_BARRIER_SYNC)desc.SyncBefore,
@@ -259,11 +267,21 @@ internal unsafe class D3D12CommandBuffer : ICommandBuffer
Offset = 0,
Size = ulong.MaxValue
};
record.barrierData = new ResourceBarrierData(BarrierLayout.Undefined, desc.AccessAfter, desc.SyncAfter);
}
break;
case BarrierType.Texture:
{
var resource = _resourceDatabase.GetResource(desc.Resource);
var r = _resourceDatabase.GetResourceRecord(desc.Resource);
if (r.IsFailure)
{
RecordError(nameof(ResourceBarrier), r.Error);
continue;
}
ref var record = ref r.Value;
var resource = record.ResourcePtr;
pTextureBarriers[textureIndex++] = new D3D12_TEXTURE_BARRIER
{
SyncBefore = (D3D12_BARRIER_SYNC)desc.SyncBefore,
@@ -282,6 +300,8 @@ internal unsafe class D3D12CommandBuffer : ICommandBuffer
},
Flags = desc.Discard ? D3D12_TEXTURE_BARRIER_FLAGS.D3D12_TEXTURE_BARRIER_FLAG_DISCARD : D3D12_TEXTURE_BARRIER_FLAGS.D3D12_TEXTURE_BARRIER_FLAG_NONE
};
record.barrierData = new ResourceBarrierData(desc.LayoutAfter, desc.AccessAfter, desc.SyncAfter);
}
break;
}