/// <summary>
/// Compiles or recompiles the effect if necesssary.
/// </summary>
/// <param name="graphicsDevice"></param>
/// <returns>True if the effect was recompiled, false otherwise.</returns>
public bool UpdateEffect(GraphicsDevice graphicsDevice)
{
if (effect == null || permutationCounter != Parameters.PermutationCounter || (effect != null && effect.SourceChanged))
{
permutationCounter = Parameters.PermutationCounter;
var oldEffect = effect;
ChooseEffect(graphicsDevice);
// Early exit: same effect, and already initialized
if (oldEffect == effect && descriptorReflection != null)
{
return(false);
}
// Update reflection and rearrange buffers/resources
var layoutNames = effect.Bytecode.Reflection.ResourceBindings.Select(x => x.ResourceGroup ?? "Globals").Distinct().ToList();
descriptorReflection = EffectDescriptorSetReflection.New(graphicsDevice, effect.Bytecode, layoutNames, "Globals");
RootSignature?.Dispose();
RootSignature = RootSignature.New(graphicsDevice, descriptorReflection);
bufferUploader.Clear();
bufferUploader.Compile(graphicsDevice, descriptorReflection, effect.Bytecode);
// Create parameter updater
var layouts = new DescriptorSetLayoutBuilder[descriptorReflection.Layouts.Count];
for (int i = 0; i < descriptorReflection.Layouts.Count; ++i)
{
layouts[i] = descriptorReflection.Layouts[i].Layout;
}
var parameterUpdaterLayout = new EffectParameterUpdaterLayout(graphicsDevice, effect, layouts);
parameterUpdater = new EffectParameterUpdater(parameterUpdaterLayout, Parameters);
descriptorSets = new DescriptorSet[parameterUpdater.ResourceGroups.Length];
return(true);
}
return(false);
}
/// <param name="context"></param>
/// <inheritdoc/>
public override void PrepareEffectPermutations(RenderDrawContext context)
{
base.PrepareEffectPermutations(context);
// TODO: Temporary until we have a better system for handling permutations
var renderEffects = RenderData.GetData(RenderEffectKey);
int effectSlotCount = EffectPermutationSlotCount;
Dispatcher.ForEach(RenderSystem.Views, view =>
{
var viewFeature = view.Features[Index];
Dispatcher.ForEach(viewFeature.RenderNodes, renderNodeReference =>
{
var renderNode = this.GetRenderNode(renderNodeReference);
var renderObject = renderNode.RenderObject;
// Get RenderEffect
var staticObjectNode = renderObject.StaticObjectNode;
var staticEffectObjectNode = staticObjectNode * effectSlotCount + effectSlots[renderNode.RenderStage.Index].Index;
var renderEffect = renderEffects[staticEffectObjectNode];
var effectSelector = renderObject.ActiveRenderStages[renderNode.RenderStage.Index].EffectSelector;
// Create it (first time) or regenerate it if effect changed
if (renderEffect == null || effectSelector != renderEffect.EffectSelector)
{
renderEffect = new RenderEffect(renderObject.ActiveRenderStages[renderNode.RenderStage.Index].EffectSelector);
renderEffects[staticEffectObjectNode] = renderEffect;
}
// Is it the first time this frame that we check this RenderEffect?
if (renderEffect.MarkAsUsed(RenderSystem))
{
renderEffect.EffectValidator.BeginEffectValidation();
}
});
});
// Step1: Perform permutations
PrepareEffectPermutationsImpl(context);
PrepareRenderTargetExtensionsMixins(context);
var currentTime = DateTime.UtcNow;
// Step2: Compile effects
Dispatcher.ForEach(RenderObjects, renderObject =>
{
//var renderObject = RenderObjects[index];
var staticObjectNode = renderObject.StaticObjectNode;
for (int i = 0; i < effectSlotCount; ++i)
{
var staticEffectObjectNode = staticObjectNode * effectSlotCount + i;
var renderEffect = renderEffects[staticEffectObjectNode];
// Skip if not used
if (renderEffect == null)
{
continue;
}
// Skip reflection update unless a state change requires it
renderEffect.IsReflectionUpdateRequired = false;
if (!renderEffect.IsUsedDuringThisFrame(RenderSystem))
{
continue;
}
// Skip if nothing changed
if (renderEffect.EffectValidator.ShouldSkip)
{
// Reset pending effect, as it is now obsolete anyway
renderEffect.Effect = null;
renderEffect.State = RenderEffectState.Skip;
}
else if (renderEffect.EffectValidator.EndEffectValidation() && (renderEffect.Effect == null || !renderEffect.Effect.SourceChanged) && !(renderEffect.State == RenderEffectState.Error && currentTime >= renderEffect.RetryTime))
{
InvalidateEffectPermutation(renderObject, renderEffect);
// Still, let's check if there is a pending effect compiling
var pendingEffect = renderEffect.PendingEffect;
if (pendingEffect == null || !pendingEffect.IsCompleted)
{
continue;
}
renderEffect.ClearFallbackParameters();
if (pendingEffect.IsFaulted)
{
// The effect can fail compilation asynchronously
renderEffect.State = RenderEffectState.Error;
renderEffect.Effect = ComputeFallbackEffect?.Invoke(renderObject, renderEffect, RenderEffectState.Error);
}
else
{
renderEffect.State = RenderEffectState.Normal;
renderEffect.Effect = pendingEffect.Result;
}
renderEffect.PendingEffect = null;
}
else
{
// Reset pending effect, as it is now obsolete anyway
renderEffect.PendingEffect = null;
renderEffect.State = RenderEffectState.Normal;
// CompilerParameters are ThreadStatic
if (staticCompilerParameters == null)
{
staticCompilerParameters = new CompilerParameters();
}
foreach (var effectValue in renderEffect.EffectValidator.EffectValues)
{
staticCompilerParameters.SetObject(effectValue.Key, effectValue.Value);
}
TaskOrResult <Effect> asyncEffect;
try
{
// The effect can fail compilation synchronously
asyncEffect = RenderSystem.EffectSystem.LoadEffect(renderEffect.EffectSelector.EffectName, staticCompilerParameters);
staticCompilerParameters.Clear();
}
catch
{
staticCompilerParameters.Clear();
renderEffect.ClearFallbackParameters();
renderEffect.State = RenderEffectState.Error;
renderEffect.Effect = ComputeFallbackEffect?.Invoke(renderObject, renderEffect, RenderEffectState.Error);
continue;
}
renderEffect.Effect = asyncEffect.Result;
if (renderEffect.Effect == null)
{
// Effect still compiling, let's find if there is a fallback
renderEffect.ClearFallbackParameters();
renderEffect.PendingEffect = asyncEffect.Task;
renderEffect.State = RenderEffectState.Compiling;
renderEffect.Effect = ComputeFallbackEffect?.Invoke(renderObject, renderEffect, RenderEffectState.Compiling);
}
}
renderEffect.IsReflectionUpdateRequired = true;
}
});
// Step3: Uupdate reflection infos (offset, etc...)
foreach (var renderObject in RenderObjects)
{
var staticObjectNode = renderObject.StaticObjectNode;
for (int i = 0; i < effectSlotCount; ++i)
{
var staticEffectObjectNode = staticObjectNode * effectSlotCount + i;
var renderEffect = renderEffects[staticEffectObjectNode];
// Skip if not used
if (renderEffect == null || !renderEffect.IsReflectionUpdateRequired)
{
continue;
}
var effect = renderEffect.Effect;
if (effect == null && renderEffect.State == RenderEffectState.Compiling)
{
// Need to wait for completion because we have nothing else
renderEffect.PendingEffect.Wait();
if (!renderEffect.PendingEffect.IsFaulted)
{
renderEffect.Effect = effect = renderEffect.PendingEffect.Result;
renderEffect.State = RenderEffectState.Normal;
}
else
{
renderEffect.ClearFallbackParameters();
renderEffect.State = RenderEffectState.Error;
renderEffect.Effect = effect = ComputeFallbackEffect?.Invoke(renderObject, renderEffect, RenderEffectState.Error);
}
}
var effectHashCode = effect != null ? (uint)effect.GetHashCode() : 0;
// Effect is last 16 bits
renderObject.StateSortKey = (renderObject.StateSortKey & 0xFFFF0000) | (effectHashCode & 0x0000FFFF);
if (effect != null)
{
RenderEffectReflection renderEffectReflection;
if (!InstantiatedEffects.TryGetValue(effect, out renderEffectReflection))
{
renderEffectReflection = new RenderEffectReflection();
// Build root signature automatically from reflection
renderEffectReflection.DescriptorReflection = EffectDescriptorSetReflection.New(RenderSystem.GraphicsDevice, effect.Bytecode, effectDescriptorSetSlots, "PerFrame");
renderEffectReflection.ResourceGroupDescriptions = new ResourceGroupDescription[renderEffectReflection.DescriptorReflection.Layouts.Count];
// Compute ResourceGroup hashes
for (int index = 0; index < renderEffectReflection.DescriptorReflection.Layouts.Count; index++)
{
var descriptorSet = renderEffectReflection.DescriptorReflection.Layouts[index];
if (descriptorSet.Layout == null)
{
continue;
}
var constantBufferReflection = effect.Bytecode.Reflection.ConstantBuffers.FirstOrDefault(x => x.Name == descriptorSet.Name);
renderEffectReflection.ResourceGroupDescriptions[index] = new ResourceGroupDescription(descriptorSet.Layout, constantBufferReflection);
}
renderEffectReflection.RootSignature = RootSignature.New(RenderSystem.GraphicsDevice, renderEffectReflection.DescriptorReflection);
renderEffectReflection.BufferUploader.Compile(RenderSystem.GraphicsDevice, renderEffectReflection.DescriptorReflection, effect.Bytecode);
// Prepare well-known descriptor set layouts
renderEffectReflection.PerDrawLayout = CreateDrawResourceGroupLayout(renderEffectReflection.ResourceGroupDescriptions[perDrawDescriptorSetSlot.Index], renderEffect.State);
renderEffectReflection.PerFrameLayout = CreateFrameResourceGroupLayout(renderEffectReflection.ResourceGroupDescriptions[perFrameDescriptorSetSlot.Index], renderEffect.State);
renderEffectReflection.PerViewLayout = CreateViewResourceGroupLayout(renderEffectReflection.ResourceGroupDescriptions[perViewDescriptorSetSlot.Index], renderEffect.State);
InstantiatedEffects.Add(effect, renderEffectReflection);
// Notify a new effect has been compiled
EffectCompiled?.Invoke(RenderSystem, effect, renderEffectReflection);
}
// Setup fallback parameters
if (renderEffect.State != RenderEffectState.Normal && renderEffectReflection.FallbackUpdaterLayout == null)
{
// Process all "non standard" layouts
var layoutMapping = new int[renderEffectReflection.DescriptorReflection.Layouts.Count - 3];
var layouts = new DescriptorSetLayoutBuilder[renderEffectReflection.DescriptorReflection.Layouts.Count - 3];
int layoutMappingIndex = 0;
for (int index = 0; index < renderEffectReflection.DescriptorReflection.Layouts.Count; index++)
{
var layout = renderEffectReflection.DescriptorReflection.Layouts[index];
// Skip well-known layouts (already handled)
if (layout.Name == "PerDraw" || layout.Name == "PerFrame" || layout.Name == "PerView")
{
continue;
}
layouts[layoutMappingIndex] = layout.Layout;
layoutMapping[layoutMappingIndex++] = index;
}
renderEffectReflection.FallbackUpdaterLayout = new EffectParameterUpdaterLayout(RenderSystem.GraphicsDevice, effect, layouts);
renderEffectReflection.FallbackResourceGroupMapping = layoutMapping;
}
// Update effect
renderEffect.Effect = effect;
renderEffect.Reflection = renderEffectReflection;
// Invalidate pipeline state (new effect)
renderEffect.PipelineState = null;
renderEffects[staticEffectObjectNode] = renderEffect;
}
else
{
renderEffect.Reflection = RenderEffectReflection.Empty;
renderEffect.PipelineState = null;
}
}
}
}