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Render graph: native pass merging & heap-based aliasing

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Major architecture upgrade:
- Add native render pass merging (hardware pass grouping, load/store op inference)
- Implement heap-based aliasing for textures & buffers (D3D12-style)
- Unify resource model: buffers and textures in one registry
- Extend builder API for buffer creation/usage, access flags, hints
- Improve barrier/state tracking (buffer hints, indirect argument state)
- Update caching, hashing, and debug output for new model
- Add enums/structs: AttachmentLoadOp, StoreOp, BufferHint, etc.
- D3D12 backend: support named resources, temp upload buffers, correct heap usage
- Update docs, benchmarks, and project files for new features

Brings render graph closer to AAA engine standards, enabling efficient memory usage, lower driver overhead, and a more flexible API.
This commit is contained in:
Misaki
2026-01-16 01:59:33 +09:00
parent ac36bbf8c7
commit 1c155f962c
51 changed files with 2002 additions and 2314 deletions
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112
Ghost.Graphics/D3D12/D3D12CommandBuffer.cs
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@@ -151,8 +151,8 @@ internal unsafe class D3D12CommandBuffer : ICommandBuffer
// Set descriptor heaps for bindless resources and samplers
var heaps = stackalloc ID3D12DescriptorHeap*[2];
heaps[0] = _descriptorAllocator.GetCbvSrvUavHeap(); // Bindless resource heap
heaps[1] = _descriptorAllocator.GetSamplerHeap(); // Bindless sampler heap
heaps[0] = _descriptorAllocator.GetCbvSrvUavHeap(); // Bindless resource Heap
heaps[1] = _descriptorAllocator.GetSamplerHeap(); // Bindless sampler Heap
_commandList.Get()->SetDescriptorHeaps(2, heaps);
}
@@ -401,20 +401,39 @@ internal unsafe class D3D12CommandBuffer : ICommandBuffer
var format = record.desc.TextureDescription.Format.ToDXGIFormat();
var clearColor = rtDesc.ClearColor;
// Map load operation
var loadAccessType = rtDesc.LoadOp switch
{
AttachmentLoadOp.Load => D3D12_RENDER_PASS_BEGINNING_ACCESS_TYPE_PRESERVE,
AttachmentLoadOp.Clear => D3D12_RENDER_PASS_BEGINNING_ACCESS_TYPE_CLEAR,
AttachmentLoadOp.DontCare => D3D12_RENDER_PASS_BEGINNING_ACCESS_TYPE_DISCARD,
_ => D3D12_RENDER_PASS_BEGINNING_ACCESS_TYPE_PRESERVE
};
// Map store operation
var storeAccessType = rtDesc.StoreOp switch
{
AttachmentStoreOp.Store => D3D12_RENDER_PASS_ENDING_ACCESS_TYPE_PRESERVE,
AttachmentStoreOp.DontCare => D3D12_RENDER_PASS_ENDING_ACCESS_TYPE_DISCARD,
_ => D3D12_RENDER_PASS_ENDING_ACCESS_TYPE_PRESERVE
};
var desc = new D3D12_RENDER_PASS_RENDER_TARGET_DESC
{
cpuDescriptor = cpuHandle,
BeginningAccess = new D3D12_RENDER_PASS_BEGINNING_ACCESS
{
Type = D3D12_RENDER_PASS_BEGINNING_ACCESS_TYPE_CLEAR,
Clear = new D3D12_RENDER_PASS_BEGINNING_ACCESS_CLEAR_PARAMETERS
{
ClearValue = new D3D12_CLEAR_VALUE(format, (float*)&clearColor)
}
Type = loadAccessType,
Clear = loadAccessType == D3D12_RENDER_PASS_BEGINNING_ACCESS_TYPE_CLEAR
? new D3D12_RENDER_PASS_BEGINNING_ACCESS_CLEAR_PARAMETERS
{
ClearValue = new D3D12_CLEAR_VALUE(format, (float*)&clearColor)
}
: default
},
EndingAccess = new D3D12_RENDER_PASS_ENDING_ACCESS
{
Type = D3D12_RENDER_PASS_ENDING_ACCESS_TYPE_PRESERVE
Type = storeAccessType
}
};
@@ -435,16 +454,70 @@ internal unsafe class D3D12CommandBuffer : ICommandBuffer
var cpuHandle = _descriptorAllocator.GetCpuHandle(record.viewGroup.dsv);
var format = record.desc.TextureDescription.Format.ToDXGIFormat();
// Map depth load operation
var depthLoadAccessType = depthDesc.DepthLoadOp switch
{
AttachmentLoadOp.Load => D3D12_RENDER_PASS_BEGINNING_ACCESS_TYPE_PRESERVE,
AttachmentLoadOp.Clear => D3D12_RENDER_PASS_BEGINNING_ACCESS_TYPE_CLEAR,
AttachmentLoadOp.DontCare => D3D12_RENDER_PASS_BEGINNING_ACCESS_TYPE_DISCARD,
_ => D3D12_RENDER_PASS_BEGINNING_ACCESS_TYPE_PRESERVE
};
// Map depth store operation
var depthStoreAccessType = depthDesc.DepthStoreOp switch
{
AttachmentStoreOp.Store => D3D12_RENDER_PASS_ENDING_ACCESS_TYPE_PRESERVE,
AttachmentStoreOp.DontCare => D3D12_RENDER_PASS_ENDING_ACCESS_TYPE_DISCARD,
_ => D3D12_RENDER_PASS_ENDING_ACCESS_TYPE_PRESERVE
};
// Map stencil load operation
var stencilLoadAccessType = depthDesc.StencilLoadOp switch
{
AttachmentLoadOp.Load => D3D12_RENDER_PASS_BEGINNING_ACCESS_TYPE_PRESERVE,
AttachmentLoadOp.Clear => D3D12_RENDER_PASS_BEGINNING_ACCESS_TYPE_CLEAR,
AttachmentLoadOp.DontCare => D3D12_RENDER_PASS_BEGINNING_ACCESS_TYPE_DISCARD,
_ => D3D12_RENDER_PASS_BEGINNING_ACCESS_TYPE_PRESERVE
};
// Map stencil store operation
var stencilStoreAccessType = depthDesc.StencilStoreOp switch
{
AttachmentStoreOp.Store => D3D12_RENDER_PASS_ENDING_ACCESS_TYPE_PRESERVE,
AttachmentStoreOp.DontCare => D3D12_RENDER_PASS_ENDING_ACCESS_TYPE_DISCARD,
_ => D3D12_RENDER_PASS_ENDING_ACCESS_TYPE_PRESERVE
};
var desc = new D3D12_RENDER_PASS_DEPTH_STENCIL_DESC
{
cpuDescriptor = cpuHandle,
DepthBeginningAccess = new D3D12_RENDER_PASS_BEGINNING_ACCESS
{
Type = D3D12_RENDER_PASS_BEGINNING_ACCESS_TYPE_CLEAR,
Clear = new D3D12_RENDER_PASS_BEGINNING_ACCESS_CLEAR_PARAMETERS
{
ClearValue = new D3D12_CLEAR_VALUE(format, depthDesc.ClearDepth, depthDesc.ClearStencil)
}
Type = depthLoadAccessType,
Clear = depthLoadAccessType == D3D12_RENDER_PASS_BEGINNING_ACCESS_TYPE_CLEAR
? new D3D12_RENDER_PASS_BEGINNING_ACCESS_CLEAR_PARAMETERS
{
ClearValue = new D3D12_CLEAR_VALUE(format, depthDesc.ClearDepth, depthDesc.ClearStencil)
}
: default
},
DepthEndingAccess = new D3D12_RENDER_PASS_ENDING_ACCESS
{
Type = depthStoreAccessType
},
StencilBeginningAccess = new D3D12_RENDER_PASS_BEGINNING_ACCESS
{
Type = stencilLoadAccessType,
Clear = stencilLoadAccessType == D3D12_RENDER_PASS_BEGINNING_ACCESS_TYPE_CLEAR
? new D3D12_RENDER_PASS_BEGINNING_ACCESS_CLEAR_PARAMETERS
{
ClearValue = new D3D12_CLEAR_VALUE(format, depthDesc.ClearDepth, depthDesc.ClearStencil)
}
: default
},
StencilEndingAccess = new D3D12_RENDER_PASS_ENDING_ACCESS
{
Type = stencilStoreAccessType
}
};
@@ -731,22 +804,19 @@ internal unsafe class D3D12CommandBuffer : ICommandBuffer
var sizeInBytes = (uint)(data.Length * sizeof(T));
var uploadHandle = _resourceAllocator.CreateUploadBuffer(sizeInBytes);
var uploadHandle = _resourceAllocator.CreateTempUploadBuffer(sizeInBytes, out var offset);
var uploadResource = _resourceDatabase.GetResource(uploadHandle.AsResource());
void* pMappedData;
uploadResource.Get()->Map(0, null, &pMappedData);
fixed (T* pData = data)
{
MemoryUtility.MemCpy(pMappedData, pData, sizeInBytes);
MemoryUtility.MemCpy((byte*)pMappedData + offset, pData, sizeInBytes);
}
uploadResource.Get()->Unmap(0, null);
var pResource = _resourceDatabase.GetResource(buffer.AsResource());
_commandList.Get()->CopyBufferRegion(pResource, 0, uploadResource, 0, sizeInBytes);
// D3D12 transition resource to COPY_DEST when copying
_resourceDatabase.SetResourceState(buffer.AsResource(), ResourceState.CopyDest);
_commandList.Get()->CopyBufferRegion(pResource, 0, uploadResource, offset, sizeInBytes);
}
public void UploadTexture(Handle<Texture> texture, ReadOnlySpan<SubResourceData> subresources)
@@ -766,7 +836,7 @@ internal unsafe class D3D12CommandBuffer : ICommandBuffer
var resourceDesc = resource.Get()->GetDesc();
var requiredSize = GetRequiredIntermediateSize(resource, 0, (uint)subresources.Length);
var uploadHandle = _resourceAllocator.CreateUploadBuffer(requiredSize);
var uploadHandle = _resourceAllocator.CreateTempUploadBuffer(requiredSize, out var offset);
var pUploadResource = _resourceDatabase.GetResource(uploadHandle.AsResource());
var d3d12Subresources = stackalloc D3D12_SUBRESOURCE_DATA[subresources.Length];
@@ -784,7 +854,7 @@ internal unsafe class D3D12CommandBuffer : ICommandBuffer
(ID3D12GraphicsCommandList*)_commandList.Get(),
resource,
pUploadResource,
0,
offset,
0,
(uint)subresources.Length,
d3d12Subresources);