/// <summary>
/// Unsubscribes from the given render pass.
/// </summary>
protected internal void UnsubscribeFromPass(RenderPassInfo passInfo, UpdateState updateState, ViewRelatedSceneLayerSubset layerViewSubset)
{
// Get the subscription list
// (may be null if object was removed from the layer)
List <RenderPassSubscription> subscriptionList = m_viewRelatedSubscriptions[layerViewSubset.ViewIndex];
if (subscriptionList == null)
{
return;
}
// Perform unsubscribe
int entryCount = 0;
for (int loop = 0; loop < subscriptionList.Count; loop++)
{
if (subscriptionList[loop].RenderPass == passInfo)
{
subscriptionList[loop].Unsubscribe();
subscriptionList.RemoveAt(loop);
entryCount++;
loop--;
}
}
if (entryCount > 1)
{
throw new SeeingSharpGraphicsException("Inconsistency: Too much subscriptions for SceneObject detected!");
}
if (entryCount == 0)
{
throw new SeeingSharpGraphicsException("Inconsistency: No subscription found on SceneObject!");
}
}
/// <summary>
/// Subscribes on the given render pass with the given action.
/// </summary>
/// <param name="renderPass">The render pass to which to subscribe.</param>
/// <param name="renderAction">The action which performs rendering.</param>
/// <param name="layerViewSubset">The ViewRelatedSceneLayerSubset to which to subscribe.</param>
/// <param name="zOrder">The z order if sorting is enabled for this pass (default = 0).</param>
protected internal void SubscribeToPass(
RenderPassInfo renderPass,
ViewRelatedSceneLayerSubset layerViewSubset, Action <RenderState> renderAction,
int zOrder = 0)
{
List <RenderPassSubscription> subscriptionList = m_viewRelatedSubscriptions[layerViewSubset.ViewIndex];
subscriptionList.Add(layerViewSubset.SubscribeForPass(renderPass, this, renderAction, zOrder));
}
/// <summary>
/// Initializes a new instance of the <see cref="RenderPassSubscription" /> struct.
/// </summary>
/// <param name="layerViewSubset">The ViewRelatedSceneLayerSubset object this subscription belongs to.</param>
/// <param name="renderPass">The render pass on which to register.</param>
/// <param name="sceneObject">The scene object which should be registered.</param>
/// <param name="renderMethod">The render method which is to be registered.</param>
/// <param name="zOrder">The z-order for sorting if the subsciptions of this pass get sorted by it.</param>
internal RenderPassSubscription(
ViewRelatedSceneLayerSubset layerViewSubset, RenderPassInfo renderPass,
SceneObject sceneObject, Action <RenderState> renderMethod,
int zOrder)
{
LayerViewSubset = layerViewSubset;
RenderPass = renderPass;
SceneObject = sceneObject;
RenderMethod = renderMethod;
IsSubscribed = true;
SubscriptionIndex = 0;
ZOrder = zOrder;
}
/// <summary>
/// Subscribes the given object to the given render pass.
/// </summary>
internal RenderPassSubscription SubscribeForPass(
RenderPassInfo passInfo,
SceneObject sceneObject, Action <RenderState> renderMethod,
int zOrder)
{
if (!m_isSubscribeUnsubscribeAllowed)
{
throw new SeeingSharpException("Subscription is not allowed currently!");
}
var subscriptionProperties = m_objectsPerPassDict[passInfo];
// Append new subscription to subscription list
List <RenderPassSubscription> subscriptions = subscriptionProperties.Subscriptions;
int subscriptionsCount = subscriptions.Count;
RenderPassSubscription newSubscription = new RenderPassSubscription(this, passInfo, sceneObject, renderMethod, zOrder);
if (!passInfo.IsSorted)
{
// No sort, so put the new subscription to the end of the collection
newSubscription.SubscriptionIndex = subscriptionsCount;
subscriptions.Add(newSubscription);
}
else
{
// Perform BinaryInsert to the correct position
int newIndex = CommonTools.BinaryInsert(subscriptions, newSubscription, SubscriptionZOrderComparer.Instance);
// Increment all subscription indices after the inserted position
subscriptionsCount++;
RenderPassSubscription actSubscription;
for (int loop = newIndex; loop < subscriptionsCount; loop++)
{
actSubscription = subscriptions[loop];
if (actSubscription.SubscriptionIndex != loop)
{
actSubscription.SubscriptionIndex = loop;
subscriptions[loop] = actSubscription;
actSubscription.SceneObject.UpdateSubscription(actSubscription, this);
}
}
newSubscription = subscriptions[newIndex];
}
return(newSubscription);
}
