public void Draw()
{
if (Interlocked.Exchange(ref State, (int)States.Drawing) != (int)States.Prepared)
{
throw new InvalidOperationException();
}
if (Tracing.RenderTrace.EnableTracing)
{
Tracing.RenderTrace.ImmediateMarker("Frame {0:0000} : Begin Draw", Index);
}
var dm = RenderManager.DeviceManager;
var device = dm.Device;
int c = Batches.Count;
var _batches = Batches.GetBuffer(false);
for (int i = 0; i < c; i++)
{
var batch = _batches[i];
if (batch != null)
{
batch.IssueAndWrapExceptions(dm);
}
}
dm.Finish();
if (Tracing.RenderTrace.EnableTracing)
{
Tracing.RenderTrace.ImmediateMarker("Frame {0:0000} : End Draw", Index);
}
if (Interlocked.Exchange(ref State, (int)States.Drawn) != (int)States.Drawing)
{
throw new InvalidOperationException();
}
}
public void Draw()
{
if (Interlocked.Exchange(ref State, (int)States.Drawing) != (int)States.Prepared)
{
throw new InvalidOperationException();
}
var dm = RenderManager.DeviceManager;
dm.FrameIndex = Index;
var device = dm.Device;
if (Tracing.RenderTrace.EnableTracing)
{
Tracing.RenderTrace.ImmediateMarker(device, "{1} {0:0000} : Begin Draw", Index, Label);
}
dm.Begin(ChangeRenderTargets);
int c = Batches.Count;
var _batches = Batches.GetBuffer(false);
for (int i = 0; i < c; i++)
{
var batch = _batches[i];
if (batch != null)
{
batch.IssueAndWrapExceptions(dm);
}
}
dm.Finish();
if (Tracing.RenderTrace.EnableTracing)
{
Tracing.RenderTrace.ImmediateMarker(device, "Frame {0:0000} : End Draw", Index);
}
// HACK
Coordinator.PolygonBuffer?.Clear();
if (Interlocked.Exchange(ref State, (int)States.Drawn) != (int)States.Drawing)
{
throw new InvalidOperationException();
}
}
/// <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, List <Batch> batchesToRelease)
{
batches.Sort(BatchTypeSorter);
int i = 0, j = i + 1, l = batches.Count, eliminatedCount = 0;
Batch a, b;
Type aType, bType;
var isWritable = false;
var _batches = batches.GetBuffer(false);
while ((i < l) && (j < l))
{
a = _batches[i];
if (a == null)
{
i += 1;
j = i + 1;
continue;
}
aType = a.GetType();
b = _batches[j];
if (b == 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))
{
if (!isWritable)
{
isWritable = true;
_batches.Dispose();
_batches = batches.GetBuffer(true);
}
_batches[i] = combiner.Combine(a, b);
_batches[i].Container = a.Container;
lock (batchesToRelease) {
if ((a != _batches[i]) && (a.ReleaseAfterDraw))
{
batchesToRelease.Add(a);
}
}
eliminatedCount += 1;
break;
}
}
j += 1;
}
}
_batches.Dispose();
if (false && eliminatedCount > 0)
{
Console.WriteLine("Eliminated {0:0000} of {1:0000} batch(es)", eliminatedCount, batches.Count);
}
return(eliminatedCount);
}