public BackgroundEffectRenderer(Effect effect, EffectConfigToken effectToken, RenderArgs dstArgs, RenderArgs srcArgs, PdnRegion renderRegion, IRenderer <ColorAlpha8> clipMaskRenderer, int tileCount, int workerThreads)
{
this.effect = effect;
this.effectToken = effectToken;
this.dstArgs = dstArgs;
this.srcArgs = srcArgs;
this.renderRegion = renderRegion;
this.renderRegion.Intersect(dstArgs.Bounds);
this.tileCount = tileCount;
if (effect.CheckForEffectFlags(EffectFlags.None | EffectFlags.SingleRenderCall))
{
this.tileCount = 1;
}
this.tileRegions = this.SliceUpRegion(renderRegion, this.tileCount, dstArgs.Bounds);
this.tilePdnRegions = new PdnRegion[this.tileRegions.Length];
for (int i = 0; i < this.tileRegions.Length; i++)
{
this.tilePdnRegions[i] = PdnRegion.FromRectangles(this.tileRegions[i]);
}
this.workerThreads = workerThreads;
if (effect.CheckForEffectFlags(EffectFlags.None | EffectFlags.SingleThreaded))
{
this.workerThreads = 1;
}
this.clipMaskRenderer = clipMaskRenderer;
this.threadPool = new EffectRendererWorkItemQueue(WorkItemDispatcher.Default, WorkItemQueuePriority.Normal, workerThreads);
}
private void ThreadFunction()
{
if (this.srcArgs.Surface.Scan0.MaySetAllowWrites)
{
this.srcArgs.Surface.Scan0.AllowWrites = false;
}
try
{
this.threadInitialized.Set();
this.effect.SetRenderInfo(this.effectTokenCopy, this.dstArgs, this.srcArgs);
RendererContext context = new RendererContext(this);
if (this.threadShouldStop)
{
this.effect.SignalCancelRequest();
}
else if (this.tileCount > 0)
{
context.RenderNextTile(this.effectTokenCopy);
}
WaitCallback rcwc = new WaitCallback(context.RenderNextTileProc);
for (int i = 0; i < this.tileCount; i++)
{
if (this.threadShouldStop)
{
this.effect.SignalCancelRequest();
break;
}
EffectConfigToken token = (this.effectTokenCopy == null) ? null : this.effectTokenCopy.CloneT <EffectConfigToken>();
this.threadPool.Enqueue(() => rcwc(token));
}
this.threadPool.Join();
}
catch (Exception exception)
{
this.exceptions.Add(exception);
}
finally
{
EffectRendererWorkItemQueue threadPool = this.threadPool;
if (!this.disposed && (threadPool != null))
{
try
{
threadPool.Join();
}
catch (Exception)
{
}
}
this.OnFinishedRendering();
RenderArgs srcArgs = this.srcArgs;
if (srcArgs != null)
{
Surface surface = srcArgs.Surface;
if (surface != null)
{
MemoryBlock block = surface.Scan0;
if (((block != null) && !this.disposed) && block.MaySetAllowWrites)
{
try
{
block.AllowWrites = true;
}
catch (ObjectDisposedException)
{
}
}
}
}
}
}
