Misaki/GhostEngine
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Render graph integration and resource management refactor

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Introduces a full-featured render graph system with pass culling, resource aliasing, and automatic barrier generation. Refactors resource and barrier APIs, improves error handling, and unifies result types. Renderer and render passes now use the new graph-based workflow. Updates shader includes, adds a blit shader, and improves HLSL parsing. Removes dynamic descriptor heaps in favor of persistent ones. Project file now includes the render graph module. Lays the foundation for advanced rendering features and improved memory efficiency.
This commit is contained in:
Misaki
2026-01-21 18:32:03 +09:00
parent 1c155f962c
commit 92b966fe0d
62 changed files with 4843 additions and 621 deletions
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106
Ghost.Graphics/Core/RenderingContext.cs
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@@ -50,13 +50,18 @@ public readonly unsafe ref struct RenderingContext
public Handle<Mesh> CreateMesh(UnsafeList<Vertex> vertices, UnsafeList<uint> indices, bool staticMesh)
{
var mesh = ResourceAllocator.CreateMesh(vertices, indices);
ref var meshData = ref ResourceDatabase.GetMeshReference(mesh);
var r = ResourceDatabase.GetMeshReference(mesh);
if (r.IsFailure)
{
return mesh;
}
ref readonly var meshData = ref r.Value;
var vertexHandle = meshData.VertexBuffer.AsResource();
var indexHandle = meshData.IndexBuffer.AsResource();
_directCmd.ResourceBarrier(vertexHandle, ResourceState.CopyDest);
_directCmd.ResourceBarrier(indexHandle, ResourceState.CopyDest);
_directCmd.TransitionBarrier(vertexHandle, ResourceState.CopyDest);
_directCmd.TransitionBarrier(indexHandle, ResourceState.CopyDest);
_directCmd.UploadBuffer(meshData.VertexBuffer, meshData.Vertices.AsSpan());
_directCmd.UploadBuffer(meshData.IndexBuffer, meshData.Indices.AsSpan());
@@ -64,8 +69,8 @@ public readonly unsafe ref struct RenderingContext
if (staticMesh)
{
meshData.ReleaseCpuResources();
_directCmd.ResourceBarrier(vertexHandle, ResourceState.NonPixelShaderResource);
_directCmd.ResourceBarrier(indexHandle, ResourceState.NonPixelShaderResource);
_directCmd.TransitionBarrier(vertexHandle, ResourceState.NonPixelShaderResource);
_directCmd.TransitionBarrier(indexHandle, ResourceState.NonPixelShaderResource);
}
return mesh;
@@ -91,16 +96,22 @@ public readonly unsafe ref struct RenderingContext
/// <param name="markMeshStatic">Whether to mark the mesh as static. If it's true, the cpu buffer of the mesh will not be avaliable any more</param>
public void UploadMesh(Handle<Mesh> mesh, bool markMeshStatic)
{
ref var meshRef = ref ResourceDatabase.GetMeshReference(mesh);
var r = ResourceDatabase.GetMeshReference(mesh);
if (r.IsFailure)
{
return;
}
_directCmd.ResourceBarrier(meshRef.VertexBuffer.AsResource(), ResourceState.CopyDest);
_directCmd.ResourceBarrier(meshRef.IndexBuffer.AsResource(), ResourceState.CopyDest);
ref readonly var meshRef = ref r.Value;
_directCmd.TransitionBarrier(meshRef.VertexBuffer.AsResource(), ResourceState.CopyDest);
_directCmd.TransitionBarrier(meshRef.IndexBuffer.AsResource(), ResourceState.CopyDest);
_directCmd.UploadBuffer(meshRef.VertexBuffer, meshRef.Vertices.AsSpan());
_directCmd.UploadBuffer(meshRef.IndexBuffer, meshRef.Indices.AsSpan());
_directCmd.ResourceBarrier(meshRef.VertexBuffer.AsResource(), ResourceState.NonPixelShaderResource);
_directCmd.ResourceBarrier(meshRef.IndexBuffer.AsResource(), ResourceState.NonPixelShaderResource);
_directCmd.TransitionBarrier(meshRef.VertexBuffer.AsResource(), ResourceState.NonPixelShaderResource);
_directCmd.TransitionBarrier(meshRef.IndexBuffer.AsResource(), ResourceState.NonPixelShaderResource);
if (markMeshStatic)
{
@@ -110,7 +121,13 @@ public readonly unsafe ref struct RenderingContext
public void UpdateObjectData(Handle<Mesh> mesh, float4x4 localToWorld)
{
ref var meshData = ref ResourceDatabase.GetMeshReference(mesh);
var r = ResourceDatabase.GetMeshReference(mesh);
if (r.IsFailure)
{
return;
}
ref readonly var meshData = ref r.Value;
var data = new PerObjectData
{
localToWorld = localToWorld,
@@ -122,9 +139,9 @@ public readonly unsafe ref struct RenderingContext
var bufferHandle = meshData.ObjectDataBuffer.AsResource();
_directCmd.ResourceBarrier(bufferHandle, ResourceState.CopyDest);
_directCmd.TransitionBarrier(bufferHandle, ResourceState.CopyDest);
_directCmd.UploadBuffer(meshData.ObjectDataBuffer, [data]);
_directCmd.ResourceBarrier(bufferHandle, ResourceState.NonPixelShaderResource | ResourceState.PixelShaderResource);
_directCmd.TransitionBarrier(bufferHandle, ResourceState.NonPixelShaderResource | ResourceState.PixelShaderResource);
}
public Handle<Texture> CreateTexture<T>(ref readonly TextureDesc desc, ReadOnlySpan<T> data, string name)
@@ -149,7 +166,7 @@ public readonly unsafe ref struct RenderingContext
desc.TextureDescription.Format.GetSurfaceInfo(desc.TextureDescription.Width, desc.TextureDescription.Height, out var rowPitch, out var slicePitch, out _);
_directCmd.ResourceBarrier(texture.AsResource(), ResourceState.CopyDest);
_directCmd.TransitionBarrier(texture.AsResource(), ResourceState.CopyDest);
fixed (T* pData = data)
{
@@ -163,65 +180,4 @@ public readonly unsafe ref struct RenderingContext
_directCmd.UploadTexture(texture, [subresourceData]);
}
}
// TODO: Ideally we should queue the draw call to our rendering system, and render it in a full rendering pipeline.
// This is just a place holder for now for testing purpose.
public void DispatchMesh(Handle<Mesh> mesh, Handle<Material> material, Identifier<ShaderPass> passID, uint numThreadsX)
{
ref var meshRef = ref ResourceDatabase.GetMeshReference(mesh);
ref var materialRef = ref ResourceDatabase.GetMaterialReference(material);
ref var shader = ref ResourceDatabase.GetShaderReference(materialRef.Shader);
var passIndex = shader.GetPassIndex(passID);
if (passIndex == -1)
{
throw new InvalidOperationException("Shader pass not found in the material's shader.");
}
ref var pass = ref shader.GetPassReference(passIndex);
var passPipelineHash = new PassPipelineHash([TextureFormat.B8G8R8A8_UNorm], TextureFormat.Unknown);
var materialPipeline = materialRef.GetPassPipelineOverride(passIndex);
// Mask out the keywords that are not used in this pass.
var variantMask = materialRef._keywordMask & pass.KeywordIDs;
var shaderVariantKey = RHIUtility.CreateShaderVariantKey(pass.Key, in variantMask);
var pipelineKey = RHIUtility.CreateGraphicsPipelineKey(shaderVariantKey, materialPipeline, passPipelineHash);
if (!_engine.PipelineLibrary.HasPipeline(pipelineKey))
{
var r = _engine.ShaderCompiler.LoadCompiledCache(shaderVariantKey);
if (r.IsFailure)
{
throw new InvalidOperationException("Failed to load compiled shader cache for pipeline state object creation.");
}
var psoDes = new GraphicsPSODescriptor
{
VariantKey = shaderVariantKey,
PipelineOption = materialRef.GetPassPipelineOverride(passIndex),
RtvFormats = [TextureFormat.B8G8R8A8_UNorm],
DsvFormat = TextureFormat.Unknown,
};
var compiled = r.Value;
_engine.PipelineLibrary.CompilePSO(in psoDes, in compiled).GetValueOrThrow();
}
_directCmd.SetPipelineState(pipelineKey);
var data = new PushConstantsData
{
objectIndex = _engine.ResourceDatabase.GetBindlessIndex(meshRef.ObjectDataBuffer.AsResource()),
materialIndex = _engine.ResourceDatabase.GetBindlessIndex(materialRef._cBufferCache.GpuResource.AsResource()),
};
var pushConstantSpan = new ReadOnlySpan<uint>(&data, sizeof(PushConstantsData) / sizeof(uint));
_directCmd.SetGraphicsRoot32Constants(RootSignatureLayout.PUSH_CONSTANT_SLOT, pushConstantSpan);
var threadGroupCountX = ((uint)meshRef.IndexCount + numThreadsX - 1) / numThreadsX;
_directCmd.DispatchMesh(threadGroupCountX, 1, 1);
}
}