protected override void ChooseEffect(GraphicsDevice graphicsDevice)
{
// TODO: Free previous descriptor sets and layouts?
// Looks like the effect changed, it needs a recompilation
var compilerParameters = new CompilerParameters
{
EffectParameters = EffectCompilerParameters
};
foreach (var effectParameterKey in Parameters.ParameterKeyInfos)
{
if (effectParameterKey.Key.Type == ParameterKeyType.Permutation)
{
// TODO GRAPHICS REFACTOR avoid direct access, esp. since permutation values might be separated from Objects at some point
compilerParameters.SetObject(effectParameterKey.Key, Parameters.ObjectValues[effectParameterKey.BindingSlot]);
}
}
effect = effectSystem.LoadEffect(effectName, compilerParameters).WaitForResult();
}
private void CreateEffect(DynamicEffectInstance effectInstance, ParameterCollection passParameters)
{
var compilerParameters = new CompilerParameters();
parameterCollections.Clear();
if (passParameters != null)
{
parameterCollections.Add(passParameters);
}
effectInstance.FillParameterCollections(ref parameterCollections);
foreach (var parameterCollection in parameterCollections)
{
if (parameterCollection != null)
{
foreach (var parameter in parameterCollection.InternalValues)
{
compilerParameters.SetObject(parameter.Key, parameter.Value.Object);
}
}
}
compilerParameters.TaskPriority = taskPriority;
foreach (var parameter in GraphicsDevice.Parameters.InternalValues)
{
compilerParameters.SetObject(parameter.Key, parameter.Value.Object);
}
// Compile shader
// possible exception in LoadEffect
TaskOrResult <Effect> effect;
ParameterCollection usedParameters;
try
{
effect = EffectSystem.LoadEffect(EffectName, compilerParameters, out usedParameters);
}
catch (Exception)
{
effectInstance.HasErrors = true;
// Fallback to error effect
var fallbackEffect = ComputeFallbackEffect(this, FallbackEffectType.Error, EffectName, compilerParameters);
UpdateEffect(effectInstance, fallbackEffect.Effect, fallbackEffect.UsedParameters, passParameters);
return;
}
// Do we have an async compilation?
if (asyncEffectCompiler && effect.Task != null)
{
effectInstance.CurrentlyCompilingEffect = effect.Task;
effectInstance.CurrentlyCompilingUsedParameters = usedParameters;
if (!effectInstance.HasErrors) // If there was an error, stay in that state (we don't want to switch between reloading and error states)
{
// Fallback to default effect
var fallbackEffect = ComputeFallbackEffect(this, FallbackEffectType.Compiling, EffectName, compilerParameters);
UpdateEffect(effectInstance, fallbackEffect.Effect, fallbackEffect.UsedParameters, passParameters);
}
return;
}
var compiledEffect = effect.WaitForResult();
UpdateEffect(effectInstance, compiledEffect, usedParameters, passParameters);
// Effect has been updated
effectInstance.CurrentlyCompilingEffect = null;
effectInstance.CurrentlyCompilingUsedParameters = null;
}