public static PipelineState New(GraphicsDevice graphicsDevice, ref PipelineStateDescription pipelineStateDescription)
{
// Hash the current state
var hashedState = new PipelineStateDescriptionWithHash(pipelineStateDescription);
// Store SamplerState in a cache (D3D seems to have quite bad concurrency when using CreateSampler while rendering)
PipelineState pipelineState;
lock (graphicsDevice.CachedPipelineStates)
{
if (graphicsDevice.CachedPipelineStates.TryGetValue(hashedState, out pipelineState))
{
// TODO: Appropriate destroy
pipelineState.AddReferenceInternal();
}
else
{
pipelineState = new PipelineState(graphicsDevice, pipelineStateDescription);
graphicsDevice.CachedPipelineStates.Add(hashedState, pipelineState);
}
}
return(pipelineState);
}
private void AdjustDefaultPipelineStateDescription(ref PipelineStateDescription pipelineStateDescription)
{
// On D3D, default state is Less instead of our LessEqual
// Let's update default pipeline state so that it correspond to D3D state after a "ClearState()"
pipelineStateDescription.DepthStencilState.DepthBufferFunction = CompareFunction.Less;
}
private void AdjustDefaultPipelineStateDescription(ref PipelineStateDescription pipelineStateDescription)
{
}
internal unsafe PipelineState(GraphicsDevice graphicsDevice, PipelineStateDescription pipelineStateDescription) : base(graphicsDevice)
{
if (pipelineStateDescription.RootSignature != null)
{
var effectReflection = pipelineStateDescription.EffectBytecode.Reflection;
var rootSignatureParameters = new List <RootParameter>();
var immutableSamplers = new List <StaticSamplerDescription>();
SrvBindCounts = new int[pipelineStateDescription.RootSignature.EffectDescriptorSetReflection.Layouts.Count];
SamplerBindCounts = new int[pipelineStateDescription.RootSignature.EffectDescriptorSetReflection.Layouts.Count];
for (int layoutIndex = 0; layoutIndex < pipelineStateDescription.RootSignature.EffectDescriptorSetReflection.Layouts.Count; layoutIndex++)
{
var layout = pipelineStateDescription.RootSignature.EffectDescriptorSetReflection.Layouts[layoutIndex];
if (layout.Layout == null)
{
continue;
}
// TODO D3D12 for now, we don't control register so we simply generate one resource table per shader stage and per descriptor set layout
// we should switch to a model where we make sure VS/PS don't overlap for common descriptors so that they can be shared
var srvDescriptorRangesVS = new List <DescriptorRange>();
var srvDescriptorRangesPS = new List <DescriptorRange>();
var samplerDescriptorRangesVS = new List <DescriptorRange>();
var samplerDescriptorRangesPS = new List <DescriptorRange>();
int descriptorSrvOffset = 0;
int descriptorSamplerOffset = 0;
foreach (var item in layout.Layout.Entries)
{
var isSampler = item.Class == EffectParameterClass.Sampler;
// Find matching resource bindings
foreach (var binding in effectReflection.ResourceBindings)
{
if (binding.Stage == ShaderStage.None || binding.Param.Key != item.Key)
{
continue;
}
List <DescriptorRange> descriptorRanges;
switch (binding.Stage)
{
case ShaderStage.Vertex:
descriptorRanges = isSampler ? samplerDescriptorRangesVS : srvDescriptorRangesVS;
break;
case ShaderStage.Pixel:
descriptorRanges = isSampler ? samplerDescriptorRangesPS : srvDescriptorRangesPS;
break;
default:
throw new NotImplementedException();
}
if (isSampler)
{
if (item.ImmutableSampler != null)
{
immutableSamplers.Add(new StaticSamplerDescription((ShaderVisibility)binding.Stage, binding.SlotStart, 0)
{
// TODO D3D12 other states
// TODO D3D12 ImmutableSampler should only be a state description instead of a GPU object?
Filter = (Filter)item.ImmutableSampler.Description.Filter,
AddressU = (SharpDX.Direct3D12.TextureAddressMode)item.ImmutableSampler.Description.AddressU,
AddressV = (SharpDX.Direct3D12.TextureAddressMode)item.ImmutableSampler.Description.AddressV,
AddressW = (SharpDX.Direct3D12.TextureAddressMode)item.ImmutableSampler.Description.AddressW,
MinLOD = item.ImmutableSampler.Description.MinMipLevel,
MaxLOD = item.ImmutableSampler.Description.MaxMipLevel,
MipLODBias = item.ImmutableSampler.Description.MipMapLevelOfDetailBias,
MaxAnisotropy = item.ImmutableSampler.Description.MaxAnisotropy,
});
}
else
{
// Add descriptor range
descriptorRanges.Add(new DescriptorRange(DescriptorRangeType.Sampler, item.ArraySize, binding.SlotStart, 0, descriptorSamplerOffset));
}
}
else
{
DescriptorRangeType descriptorRangeType;
switch (binding.Param.Class)
{
case EffectParameterClass.ConstantBuffer:
descriptorRangeType = DescriptorRangeType.ConstantBufferView;
break;
case EffectParameterClass.ShaderResourceView:
descriptorRangeType = DescriptorRangeType.ShaderResourceView;
break;
case EffectParameterClass.UnorderedAccessView:
descriptorRangeType = DescriptorRangeType.UnorderedAccessView;
break;
default:
throw new NotImplementedException();
}
// Add descriptor range
descriptorRanges.Add(new DescriptorRange(descriptorRangeType, item.ArraySize, binding.SlotStart, 0, descriptorSrvOffset));
}
}
// Move to next element (mirror what is done in DescriptorSetLayout)
if (isSampler)
{
if (item.ImmutableSampler == null)
{
descriptorSamplerOffset += item.ArraySize;
}
}
else
{
descriptorSrvOffset += item.ArraySize;
}
}
if (srvDescriptorRangesVS.Count > 0)
{
rootSignatureParameters.Add(new RootParameter(ShaderVisibility.Vertex, srvDescriptorRangesVS.ToArray()));
SrvBindCounts[layoutIndex]++;
}
if (srvDescriptorRangesPS.Count > 0)
{
rootSignatureParameters.Add(new RootParameter(ShaderVisibility.Pixel, srvDescriptorRangesPS.ToArray()));
SrvBindCounts[layoutIndex]++;
}
if (samplerDescriptorRangesVS.Count > 0)
{
rootSignatureParameters.Add(new RootParameter(ShaderVisibility.Vertex, samplerDescriptorRangesVS.ToArray()));
SamplerBindCounts[layoutIndex]++;
}
if (samplerDescriptorRangesPS.Count > 0)
{
rootSignatureParameters.Add(new RootParameter(ShaderVisibility.Pixel, samplerDescriptorRangesPS.ToArray()));
SamplerBindCounts[layoutIndex]++;
}
}
var rootSignatureDesc = new RootSignatureDescription(RootSignatureFlags.AllowInputAssemblerInputLayout, rootSignatureParameters.ToArray(), immutableSamplers.ToArray());
var rootSignature = NativeDevice.CreateRootSignature(0, rootSignatureDesc.Serialize());
var inputElements = new InputElement[pipelineStateDescription.InputElements.Length];
for (int i = 0; i < inputElements.Length; ++i)
{
var inputElement = pipelineStateDescription.InputElements[i];
inputElements[i] = new InputElement
{
Format = (SharpDX.DXGI.Format)inputElement.Format,
AlignedByteOffset = inputElement.AlignedByteOffset,
SemanticName = inputElement.SemanticName,
SemanticIndex = inputElement.SemanticIndex,
Slot = inputElement.InputSlot,
Classification = (SharpDX.Direct3D12.InputClassification)inputElement.InputSlotClass,
InstanceDataStepRate = inputElement.InstanceDataStepRate,
};
}
PrimitiveTopologyType primitiveTopologyType;
switch (pipelineStateDescription.PrimitiveType)
{
case PrimitiveType.Undefined:
throw new ArgumentOutOfRangeException();
case PrimitiveType.PointList:
primitiveTopologyType = PrimitiveTopologyType.Point;
break;
case PrimitiveType.LineList:
case PrimitiveType.LineStrip:
case PrimitiveType.LineListWithAdjacency:
case PrimitiveType.LineStripWithAdjacency:
primitiveTopologyType = PrimitiveTopologyType.Line;
break;
case PrimitiveType.TriangleList:
case PrimitiveType.TriangleStrip:
case PrimitiveType.TriangleListWithAdjacency:
case PrimitiveType.TriangleStripWithAdjacency:
primitiveTopologyType = PrimitiveTopologyType.Triangle;
break;
default:
if (pipelineStateDescription.PrimitiveType >= PrimitiveType.PatchList && pipelineStateDescription.PrimitiveType < PrimitiveType.PatchList + 32)
{
primitiveTopologyType = PrimitiveTopologyType.Patch;
}
else
{
throw new ArgumentOutOfRangeException("pipelineStateDescription.PrimitiveType");
}
break;
}
var nativePipelineStateDescription = new GraphicsPipelineStateDescription
{
InputLayout = new InputLayoutDescription(inputElements),
RootSignature = rootSignature,
RasterizerState = CreateRasterizerState(pipelineStateDescription.RasterizerState),
BlendState = CreateBlendState(pipelineStateDescription.BlendState),
SampleMask = (int)pipelineStateDescription.SampleMask,
DepthStencilFormat = (SharpDX.DXGI.Format)pipelineStateDescription.Output.DepthStencilFormat,
DepthStencilState = CreateDepthStencilState(pipelineStateDescription.DepthStencilState),
RenderTargetCount = pipelineStateDescription.Output.RenderTargetCount,
// TODO D3D12 hardcoded
StreamOutput = new StreamOutputDescription(),
PrimitiveTopologyType = primitiveTopologyType,
// TODO D3D12 hardcoded
SampleDescription = new SharpDX.DXGI.SampleDescription(1, 0),
};
fixed(PixelFormat *renderTargetFormats = &pipelineStateDescription.Output.RenderTargetFormat0)
{
for (int i = 0; i < pipelineStateDescription.Output.RenderTargetCount; ++i)
{
nativePipelineStateDescription.RenderTargetFormats[i] = (SharpDX.DXGI.Format)renderTargetFormats[i];
}
}
foreach (var stage in pipelineStateDescription.EffectBytecode.Stages)
{
switch (stage.Stage)
{
case ShaderStage.Vertex:
nativePipelineStateDescription.VertexShader = stage.Data;
break;
case ShaderStage.Hull:
nativePipelineStateDescription.HullShader = stage.Data;
break;
case ShaderStage.Domain:
nativePipelineStateDescription.DomainShader = stage.Data;
break;
case ShaderStage.Geometry:
nativePipelineStateDescription.GeometryShader = stage.Data;
break;
case ShaderStage.Pixel:
nativePipelineStateDescription.PixelShader = stage.Data;
break;
default:
throw new ArgumentOutOfRangeException();
}
}
CompiledState = NativeDevice.CreateGraphicsPipelineState(nativePipelineStateDescription);
RootSignature = rootSignature;
PrimitiveTopology = (PrimitiveTopology)pipelineStateDescription.PrimitiveType;
}
}
public PipelineStateDescriptionWithHash(PipelineStateDescription state)
{
Hash = state.GetHashCode();
State = state;
}
internal PipelineState(GraphicsDevice graphicsDevice, PipelineStateDescription pipelineStateDescription) : base(graphicsDevice)
{
Description = pipelineStateDescription.Clone();
Recreate();
}
private unsafe void CreatePipelineLayout(PipelineStateDescription pipelineStateDescription)
{
// Remap descriptor set indices to those in the shader. This ordering generated by the ShaderCompiler
var resourceGroups = pipelineStateDescription.EffectBytecode.Reflection.ResourceBindings.Select(x => x.ResourceGroup ?? "Globals").Distinct().ToList();
ResourceGroupCount = resourceGroups.Count;
var layouts = pipelineStateDescription.RootSignature.EffectDescriptorSetReflection.Layouts;
// Get binding indices used by the shader
var destinationBindings = pipelineStateDescription.EffectBytecode.Stages
.SelectMany(x => BinarySerialization.Read <ShaderInputBytecode>(x.Data).ResourceBindings)
.GroupBy(x => x.Key, x => x.Value)
.ToDictionary(x => x.Key, x => x.First());
var maxBindingIndex = destinationBindings.Max(x => x.Value);
var destinationEntries = new DescriptorSetLayoutBuilder.Entry[maxBindingIndex + 1];
DescriptorBindingMapping = new List <DescriptorSetInfo>();
for (int i = 0; i < resourceGroups.Count; i++)
{
var resourceGroupName = resourceGroups[i] == "Globals" ? pipelineStateDescription.RootSignature.EffectDescriptorSetReflection.DefaultSetSlot : resourceGroups[i];
var layoutIndex = resourceGroups[i] == null ? 0 : layouts.FindIndex(x => x.Name == resourceGroupName);
// Check if the resource group is used by the shader
if (layoutIndex == -1)
{
continue;
}
var sourceEntries = layouts[layoutIndex].Layout.Entries;
for (int sourceBinding = 0; sourceBinding < sourceEntries.Count; sourceBinding++)
{
var sourceEntry = sourceEntries[sourceBinding];
int destinationBinding;
if (destinationBindings.TryGetValue(sourceEntry.Key.Name, out destinationBinding))
{
destinationEntries[destinationBinding] = sourceEntry;
// No need to umpdate immutable samplers
if (sourceEntry.Class == EffectParameterClass.Sampler && sourceEntry.ImmutableSampler != null)
{
continue;
}
DescriptorBindingMapping.Add(new DescriptorSetInfo
{
SourceSet = layoutIndex,
SourceBinding = sourceBinding,
DestinationBinding = destinationBinding,
DescriptorType = VulkanConvertExtensions.ConvertDescriptorType(sourceEntry.Class, sourceEntry.Type)
});
}
}
}
// Create default sampler, used by texture and buffer loads
destinationEntries[0] = new DescriptorSetLayoutBuilder.Entry
{
Class = EffectParameterClass.Sampler,
Type = EffectParameterType.Sampler,
ImmutableSampler = GraphicsDevice.SamplerStates.PointWrap,
ArraySize = 1,
};
// Create descriptor set layout
NativeDescriptorSetLayout = DescriptorSetLayout.CreateNativeDescriptorSetLayout(GraphicsDevice, destinationEntries, out DescriptorTypeCounts);
// Create pipeline layout
var nativeDescriptorSetLayout = NativeDescriptorSetLayout;
var pipelineLayoutCreateInfo = new PipelineLayoutCreateInfo
{
StructureType = StructureType.PipelineLayoutCreateInfo,
SetLayoutCount = 1,
SetLayouts = new IntPtr(&nativeDescriptorSetLayout)
};
NativeLayout = GraphicsDevice.NativeDevice.CreatePipelineLayout(ref pipelineLayoutCreateInfo);
}
private unsafe void CreateRenderPass(PipelineStateDescription pipelineStateDescription)
{
bool hasDepthStencilAttachment = pipelineStateDescription.Output.DepthStencilFormat != PixelFormat.None;
var renderTargetCount = pipelineStateDescription.Output.RenderTargetCount;
var attachmentCount = renderTargetCount;
if (hasDepthStencilAttachment)
{
attachmentCount++;
}
var attachments = new AttachmentDescription[attachmentCount];
var colorAttachmentReferences = new AttachmentReference[renderTargetCount];
fixed(PixelFormat *renderTargetFormat = &pipelineStateDescription.Output.RenderTargetFormat0)
fixed(BlendStateRenderTargetDescription * blendDescription = &pipelineStateDescription.BlendState.RenderTarget0)
{
for (int i = 0; i < renderTargetCount; i++)
{
var currentBlendDesc = pipelineStateDescription.BlendState.IndependentBlendEnable ? (blendDescription + i) : blendDescription;
attachments[i] = new AttachmentDescription
{
Format = VulkanConvertExtensions.ConvertPixelFormat(*(renderTargetFormat + i)),
Samples = SampleCountFlags.Sample1,
LoadOperation = currentBlendDesc->BlendEnable ? AttachmentLoadOperation.Load : AttachmentLoadOperation.DontCare, // TODO VULKAN: Only if any destination blend?
StoreOperation = AttachmentStoreOperation.Store,
StencilLoadOperation = AttachmentLoadOperation.DontCare,
StencilStoreOperation = AttachmentStoreOperation.DontCare,
InitialLayout = ImageLayout.ColorAttachmentOptimal,
FinalLayout = ImageLayout.ColorAttachmentOptimal,
};
colorAttachmentReferences[i] = new AttachmentReference
{
Attachment = (uint)i,
Layout = ImageLayout.ColorAttachmentOptimal,
};
}
}
if (hasDepthStencilAttachment)
{
attachments[attachmentCount - 1] = new AttachmentDescription
{
Format = Texture.GetFallbackDepthStencilFormat(GraphicsDevice, VulkanConvertExtensions.ConvertPixelFormat(pipelineStateDescription.Output.DepthStencilFormat)),
Samples = SampleCountFlags.Sample1,
LoadOperation = AttachmentLoadOperation.Load, // TODO VULKAN: Only if depth read enabled?
StoreOperation = AttachmentStoreOperation.Store, // TODO VULKAN: Only if depth write enabled?
StencilLoadOperation = AttachmentLoadOperation.DontCare, // TODO VULKAN: Handle stencil
StencilStoreOperation = AttachmentStoreOperation.DontCare,
InitialLayout = ImageLayout.DepthStencilAttachmentOptimal,
FinalLayout = ImageLayout.DepthStencilAttachmentOptimal,
};
}
var depthAttachmentReference = new AttachmentReference
{
Attachment = (uint)attachments.Length - 1,
Layout = ImageLayout.DepthStencilAttachmentOptimal,
};
var subpass = new SubpassDescription
{
PipelineBindPoint = PipelineBindPoint.Graphics,
ColorAttachmentCount = (uint)renderTargetCount,
ColorAttachments = colorAttachmentReferences.Length > 0 ? new IntPtr(Interop.Fixed(colorAttachmentReferences)) : IntPtr.Zero,
DepthStencilAttachment = hasDepthStencilAttachment ? new IntPtr(&depthAttachmentReference) : IntPtr.Zero,
};
var renderPassCreateInfo = new RenderPassCreateInfo
{
StructureType = StructureType.RenderPassCreateInfo,
AttachmentCount = (uint)attachmentCount,
Attachments = attachments.Length > 0 ? new IntPtr(Interop.Fixed(attachments)) : IntPtr.Zero,
SubpassCount = 1,
Subpasses = new IntPtr(&subpass)
};
NativeRenderPass = GraphicsDevice.NativeDevice.CreateRenderPass(ref renderPassCreateInfo);
}
public static PipelineState New(GraphicsDevice graphicsDevice, ref PipelineStateDescription pipelineStateDescription)
{
return(new PipelineState(graphicsDevice, pipelineStateDescription));
}