Misaki/GhostEngine
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Update render graph

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Misaki
2026-01-13 13:46:50 +09:00
parent 954e3756aa
commit 02df8d7732
11 changed files with 291 additions and 261 deletions
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125
Ghost.RenderGraph.Concept/RenderGraphResourcePool.cs
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@@ -23,7 +23,7 @@ internal sealed class RenderGraphObjectPool
private static ObjectPool<T> AllocatePool()
{
var newPool = new ObjectPool<T>(() => new T());
var newPool = new ObjectPool<T>(() => new T(), null);
// Storing instance to clear the static pool of the same type if needed
s_allocatedPools.Add(new SharedObjectPool<T>());
return newPool;
@@ -42,6 +42,8 @@ internal sealed class RenderGraphObjectPool
/// Rent a new instance from the pool.
/// </summary>
/// <returns></returns>
// FIX: ObjectPool<T>.Rent() has a critical bug that it will put the newly created object into the pool directly and give out the same instance again.
// This will cause multiple renters to get the same instance.
public static T Rent() => s_pool.Rent();
/// <summary>
@@ -78,25 +80,25 @@ internal sealed class RenderGraphObjectPool
internal sealed class RenderGraphResource
{
public RenderGraphResourceType type;
public int Index;
public TextureDescriptor Descriptor;
public bool IsImported;
public int FirstUsePass = -1;
public int LastUsePass = -1;
public int ProducerPass = -1;
public List<int> ConsumerPasses = new(4);
public int RefCount;
public int index;
public TextureDescriptor descriptor;
public bool isImported;
public int firstUsePass = -1;
public int lastUsePass = -1;
public int producerPass = -1;
public List<int> consumerPasses = new(4);
public int refCount;
public void Reset()
{
Index = -1;
Descriptor = default;
IsImported = false;
FirstUsePass = -1;
LastUsePass = -1;
ProducerPass = -1;
ConsumerPasses.Clear();
RefCount = 0;
index = -1;
descriptor = default;
isImported = false;
firstUsePass = -1;
lastUsePass = -1;
producerPass = -1;
consumerPasses.Clear();
refCount = 0;
}
}
@@ -108,102 +110,73 @@ internal sealed class RenderGraphResourceRegistry
{
private readonly List<RenderGraphResource> _resources = new(64);
private readonly RenderGraphObjectPool _pool = new();
private int _textureResourceCount;
public int TextureResourceCount => _textureResourceCount;
public int TextureResourceCount => _resources.Count;
public void BeginFrame()
{
// Don't clear the lists, just reset the count
// This avoids reallocating the backing arrays
_textureResourceCount = 0;
for (var i = 0; i < _resources.Count; i++)
{
_pool.Return(_resources[i]);
}
_resources.Clear();
}
public Identifier<RGTexture> ImportTexture(TextureDescriptor descriptor)
{
var resource = GetOrCreateTextureResource();
resource.Index = _textureResourceCount - 1;
resource.Descriptor = descriptor;
resource.IsImported = true;
var resource = _pool.Rent<RenderGraphResource>();
resource.type = RenderGraphResourceType.Texture;
resource.index = _resources.Count;
resource.descriptor = descriptor;
resource.isImported = true;
return new Identifier<RGTexture>(resource.Index);
_resources.Add(resource);
return new Identifier<RGTexture>(resource.index);
}
public Identifier<RGTexture> CreateTexture(TextureDescriptor descriptor)
{
var resource = GetOrCreateTextureResource();
resource.Index = _textureResourceCount - 1;
resource.Descriptor = descriptor;
resource.IsImported = false;
var resource = _pool.Rent<RenderGraphResource>();
resource.type = RenderGraphResourceType.Texture;
resource.index = _resources.Count;
resource.descriptor = descriptor;
resource.isImported = false;
return new Identifier<RGTexture>(resource.Index);
_resources.Add(resource);
return new Identifier<RGTexture>(resource.index);
}
public RenderGraphResource GetResource(Identifier<RGResource> resource)
{
if (resource.Value < 0 || resource.Value >= _textureResourceCount)
throw new ArgumentException($"Invalid texture handle: {resource}");
return _resources[resource.Value];
}
public RenderGraphResource GetTextureResourceByIndex(int index)
{
if (index < 0 || index >= _textureResourceCount)
throw new ArgumentException($"Invalid texture index: {index}");
return _resources[index];
}
public void SetProducer(Identifier<RGResource> resourceID, int passIndex)
{
var resource = GetResource(resourceID);
resource.ProducerPass = passIndex;
if (resource.FirstUsePass < 0)
resource.producerPass = passIndex;
if (resource.firstUsePass < 0)
{
resource.FirstUsePass = passIndex;
resource.firstUsePass = passIndex;
}
}
public void AddConsumer(Identifier<RGResource> resourceID, int passIndex)
{
var resource = GetResource(resourceID);
resource.ConsumerPasses.Add(passIndex);
resource.LastUsePass = passIndex;
if (resource.FirstUsePass < 0)
resource.consumerPasses.Add(passIndex);
resource.lastUsePass = passIndex;
if (resource.firstUsePass < 0)
{
resource.FirstUsePass = passIndex;
resource.firstUsePass = passIndex;
}
}
private RenderGraphResource GetOrCreateTextureResource()
{
RenderGraphResource resource;
if (_textureResourceCount < _resources.Count)
{
// Reuse existing slot
resource = _resources[_textureResourceCount];
resource.Reset();
}
else
{
// Need to grow the list
resource = _pool.Rent<RenderGraphResource>();
resource.Reset();
_resources.Add(resource);
}
_textureResourceCount++;
return resource;
}
public void Clear()
{
for (var i = 0; i < _resources.Count; i++)
{
_pool.Return(_resources[i]);
}
_resources.Clear();
_textureResourceCount = 0;
}
}