/// <summary>
/// Binds the specified effect data to this instance.
/// </summary>
/// <param name="effectDataArg">The effect data arg.</param>
/// <param name="cloneFromEffect">The clone from effect.</param>
/// <exception cref="System.InvalidOperationException">If no techniques found in this effect.</exception>
/// <exception cref="System.ArgumentException">If unable to find effect [effectName] from the EffectPool.</exception>
internal void InitializeFrom(EffectData.Effect effectDataArg, Effect cloneFromEffect)
{
RawEffectData = effectDataArg;
// Clean any previously allocated resources
if (DisposeCollector != null)
{
DisposeCollector.DisposeAndClear();
}
ConstantBuffers.Clear();
Parameters.Clear();
Techniques.Clear();
ResourceLinker = ToDispose(new EffectResourceLinker());
if (effectConstantBuffersCache != null)
{
effectConstantBuffersCache.Clear();
}
// Copy data
IsSupportingDynamicCompilation = RawEffectData.Arguments != null;
ShareConstantBuffers = RawEffectData.ShareConstantBuffers;
// Create the local effect constant buffers cache
if (!ShareConstantBuffers)
{
effectConstantBuffersCache = new Dictionary <EffectConstantBufferKey, EffectConstantBuffer>();
}
var logger = new Logger();
int techniqueIndex = 0;
int totalPassCount = 0;
EffectPass parentPass = null;
foreach (var techniqueRaw in RawEffectData.Techniques)
{
var name = techniqueRaw.Name;
if (string.IsNullOrEmpty(name))
{
name = string.Format("${0}", techniqueIndex++);
}
var technique = new EffectTechnique(this, name);
Techniques.Add(technique);
int passIndex = 0;
foreach (var passRaw in techniqueRaw.Passes)
{
name = passRaw.Name;
if (string.IsNullOrEmpty(name))
{
name = string.Format("${0}", passIndex++);
}
var pass = new EffectPass(logger, this, technique, passRaw, name);
pass.Initialize(logger);
// If this is a subpass, add it to the parent pass
if (passRaw.IsSubPass)
{
if (parentPass == null)
{
logger.Error("Pass [{0}] is declared as a subpass but has no parent.");
}
else
{
parentPass.SubPasses.Add(pass);
}
}
else
{
technique.Passes.Add(pass);
parentPass = pass;
}
}
// Count the number of passes
totalPassCount += technique.Passes.Count;
}
if (totalPassCount == 0)
{
throw new InvalidOperationException("No passes found in this effect.");
}
// Log all the exception in a single throw
if (logger.HasErrors)
{
throw new InvalidOperationException(Utilities.Join("\n", logger.Messages));
}
// Initialize the resource linker when we are done with all pass/parameters
ResourceLinker.Initialize();
//// Sort all parameters by their resource types
//// in order to achieve better local cache coherency in resource linker
Parameters.Items.Sort((left, right) =>
{
// First, order first all value types, then resource type
var comparison = left.IsValueType != right.IsValueType ? left.IsValueType ? -1 : 1 : 0;
// If same type
if (comparison == 0)
{
// Order by resource type
comparison = ((int)left.ResourceType).CompareTo((int)right.ResourceType);
// If same, order by resource index
if (comparison == 0)
{
comparison = left.Offset.CompareTo(right.Offset);
}
}
return(comparison);
});
// Prelink constant buffers
int resourceIndex = 0;
foreach (var parameter in Parameters)
{
// Recalculate parameter resource index
if (!parameter.IsValueType)
{
parameter.Offset = resourceIndex;
resourceIndex += parameter.ElementCount;
}
// Set the default values
parameter.SetDefaultValue();
if (parameter.ResourceType == EffectResourceType.ConstantBuffer)
{
parameter.SetResource(ConstantBuffers[parameter.Name]);
}
}
// Compute slot links
foreach (var technique in Techniques)
{
foreach (var pass in technique.Passes)
{
foreach (var subPass in pass.SubPasses)
{
subPass.ComputeSlotLinks();
}
pass.ComputeSlotLinks();
}
}
// Setup the first Current Technique.
CurrentTechnique = this.Techniques[0];
// Initialize predefined parameters used by Model.Draw (to speedup things internally)
DefaultParameters = new EffectDefaultParameters(this);
// If this is a clone, we need to
if (cloneFromEffect != null)
{
// Copy the content of the constant buffers to the new instance.
for (int i = 0; i < ConstantBuffers.Count; i++)
{
cloneFromEffect.ConstantBuffers[i].CopyTo(ConstantBuffers[i]);
}
// Copy back all bound resources except constant buffers
// that are already initialized with InitializeFrom method.
for (int i = 0; i < cloneFromEffect.ResourceLinker.Count; i++)
{
if (cloneFromEffect.ResourceLinker.BoundResources[i] is EffectConstantBuffer)
{
continue;
}
ResourceLinker.BoundResources[i] = cloneFromEffect.ResourceLinker.BoundResources[i];
unsafe
{
ResourceLinker.Pointers[i] = cloneFromEffect.ResourceLinker.Pointers[i];
}
}
// If everything was fine, then we can register it into the pool
Pool.AddEffect(this);
}
// Allow subclasses to complete initialization.
Initialize();
OnInitialized();
}