public EffectParameterUpdater(EffectParameterUpdaterLayout updaterLayout, ParameterCollection parameters) : this()
{
this.updaterLayout = updaterLayout;
this.resourceGroups = new ResourceGroup[updaterLayout.Layouts.Length];
for (int i = 0; i < resourceGroups.Length; ++i)
{
resourceGroups[i] = new ResourceGroup();
}
parameters.UpdateLayout(updaterLayout.ParameterCollectionLayout);
}
/// <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);
}