public void Add(Batch batch)
{
var state = State;
if (state != (int)States.Initialized)
{
throw new InvalidOperationException($"Frame state should have been initialized but was {(States)state}");
}
if (batch == null)
{
throw new ArgumentNullException("batch");
}
lock (BatchLock) {
/*
#if DEBUG && PARANOID
* if (Batches.Contains(batch))
* throw new InvalidOperationException("Batch already added to this frame");
#endif
*/
Batches.Add(batch);
batch.Container = this;
}
}
public void Add(Batch batch)
{
if (State != (int)States.Initialized)
{
throw new InvalidOperationException();
}
if (batch == null)
{
throw new ArgumentNullException("batch");
}
lock (BatchLock) {
/*
#if DEBUG && PARANOID
* if (Batches.Contains(batch))
* throw new InvalidOperationException("Batch already added to this frame");
#endif
*/
Batches.Add(batch);
batch.Container = this;
}
}
protected void Add(T item)
{
_DrawCalls.Add(item);
}
/// <summary>
/// Scans over a list of batches and applies batch combiners to reduce the total number of batches sent to the GPU and
/// improve batch preparation efficiency. Batches eliminated by combination are replaced with null.
/// </summary>
/// <param name="batches">The list of batches to perform a combination pass over.</param>
/// <returns>The number of batches eliminated.</returns>
public static int CombineBatches(ref DenseList <Batch> batches, ref DenseList <Batch> batchesToRelease)
{
batches.Sort(BatchTypeSorter);
int i = 0, j = i + 1, l = batches.Count, eliminatedCount = 0;
Batch a, b;
Type aType, bType;
while ((i < l) && (j < l))
{
a = batches[i];
if ((a == null) || (a.SuspendFuture != null))
{
i += 1;
j = i + 1;
continue;
}
aType = a.GetType();
b = batches[j];
if ((b == null) || (b.SuspendFuture != null))
{
j += 1;
continue;
}
bType = b.GetType();
if ((aType != bType) || (a.Layer != b.Layer))
{
i = j;
j = i + 1;
}
else
{
bool combined = false;
foreach (var combiner in Combiners)
{
if (combined = combiner.CanCombine(a, b))
{
batches[i] = combiner.Combine(a, b);
batches[i].Container = a.Container;
if ((a != batches[i]) && (a.ReleaseAfterDraw))
{
batchesToRelease.Add(a);
}
eliminatedCount += 1;
break;
}
}
j += 1;
}
}
if (false && eliminatedCount > 0)
{
Console.WriteLine("Eliminated {0:0000} of {1:0000} batch(es)", eliminatedCount, batches.Count);
}
return(eliminatedCount);
}