public void Swap(int[] bodies, int islandCount)
{
//Pick a body. Find all bodies of its type.
//Put them all in the same spot, starting at the body with the lowest index.
if (bodyIndex >= bodies.Length)
{
bodyIndex = 0;
}
var bodyType = bodies[bodyIndex];
int lowestIndex = -1;
QuickList <int, Array <int> > .Create(pool, 128, out var islandBodyIndices);
for (int i = bodies.Length - 1; i >= 0; --i)
{
if (bodies[i] == bodyType)
{
lowestIndex = i;
islandBodyIndices.Add(i, pool);
}
}
var baseIndex = Math.Min(bodies.Length - islandBodyIndices.Count, lowestIndex);
Array.Sort(islandBodyIndices.Span.Memory, 0, islandBodyIndices.Count);
for (int i = 0; i < islandBodyIndices.Count; ++i)
{
IslandCacheConvergence.Swap(ref bodies[baseIndex + i], ref bodies[islandBodyIndices[i]]);
}
bodyIndex += islandBodyIndices.Count;
islandBodyIndices.Dispose(pool);
}
public unsafe IslandScaffoldConstraintBatch(Solver solver, BufferPool pool)
{
pool.SpecializeFor<int>().Take(solver.TypeProcessors.Length, out TypeIdToIndex);
Unsafe.InitBlockUnaligned(TypeIdToIndex.Memory, 0xFF, (uint)(TypeIdToIndex.Length * sizeof(int)));
QuickList<IslandScaffoldTypeBatch, Buffer<IslandScaffoldTypeBatch>>.Create(pool.SpecializeFor<IslandScaffoldTypeBatch>(), solver.TypeProcessors.Length, out TypeBatches);
ReferencedBodyIndices = new IndexSet(pool, solver.bodies.ActiveSet.Count);
}
public override void Update(Input input, float dt)
{
for (int iterationIndex = 0; iterationIndex < 100; ++iterationIndex)
{
QuickList <int, Buffer <int> > .Create(BufferPool.SpecializeFor <int>(), Simulation.Bodies.ActiveSet.Count, out var bodyIndicestoDeactivate);
for (int i = 0; i < Simulation.Bodies.ActiveSet.Count; ++i)
{
bodyIndicestoDeactivate.AllocateUnsafely() = i;
}
Simulation.Sleeper.Sleep(ref bodyIndicestoDeactivate);
bodyIndicestoDeactivate.Dispose(BufferPool.SpecializeFor <int>());
QuickList <int, Buffer <int> > .Create(BufferPool.SpecializeFor <int>(), Simulation.Bodies.Sets.Length, out var setsToActivate);
for (int i = 1; i < Simulation.Bodies.Sets.Length; ++i)
{
if (Simulation.Bodies.Sets[i].Allocated)
{
setsToActivate.AllocateUnsafely() = i;
}
}
Simulation.Awakener.AwakenSets(ref setsToActivate);
setsToActivate.Dispose(BufferPool.SpecializeFor <int>());
}
base.Update(input, dt);
}
public OverlapWorker(int workerIndex, BufferPool pool, NarrowPhase <TCallbacks> narrowPhase)
{
Batcher = new CollisionBatcher <CollisionCallbacks>(pool, narrowPhase.Shapes, narrowPhase.CollisionTaskRegistry, narrowPhase.timestepDuration,
new CollisionCallbacks(workerIndex, pool, narrowPhase));
PendingConstraints = new PendingConstraintAddCache(pool);
QuickList <int, Buffer <int> > .Create(pool.SpecializeFor <int>(), 16, out PendingSetAwakenings);
}
public void Flush(IThreadDispatcher threadDispatcher = null, bool deterministic = false)
{
OnPreflush(threadDispatcher, deterministic);
//var start = Stopwatch.GetTimestamp();
QuickList <NarrowPhaseFlushJob, Buffer <NarrowPhaseFlushJob> > .Create(Pool.SpecializeFor <NarrowPhaseFlushJob>(), 128, out flushJobs);
PairCache.PrepareFlushJobs(ref flushJobs);
//We indirectly pass the determinism state; it's used by the constraint remover bookkeeping.
this.deterministic = deterministic;
ConstraintRemover.CreateFlushJobs(ref flushJobs);
if (threadDispatcher == null)
{
for (int i = 0; i < flushJobs.Count; ++i)
{
ExecuteFlushJob(ref flushJobs[i]);
}
}
else
{
flushJobIndex = -1;
threadDispatcher.DispatchWorkers(flushWorkerLoop);
}
//var end = Stopwatch.GetTimestamp();
//Console.WriteLine($"Flush stage 3 time (us): {1e6 * (end - start) / Stopwatch.Frequency}");
flushJobs.Dispose(Pool.SpecializeFor <NarrowPhaseFlushJob>());
PairCache.Postflush();
ConstraintRemover.Postflush();
OnPostflush(threadDispatcher);
}
public OverlapWorker(int workerIndex, BufferPool pool, NarrowPhase <TCallbacks> narrowPhase)
{
Batcher = new StreamingBatcher(pool, narrowPhase.CollisionTaskRegistry);
Filters = new BatcherFilters(workerIndex, narrowPhase);
ConstraintGenerators = new ConstraintGenerators(workerIndex, pool, narrowPhase);
PendingConstraints = new PendingConstraintAddCache(pool);
QuickList <int, Buffer <int> > .Create(pool.SpecializeFor <int>(), 16, out PendingSetAwakenings);
}
public LineExtractor(ParallelLooper looper, int initialLineCapacity = 8192)
{
QuickList <LineInstance, Array <LineInstance> > .Create(new PassthroughArrayPool <LineInstance>(), initialLineCapacity, out lines);
constraints = new ConstraintLineExtractor();
boundingBoxes = new BoundingBoxLineExtractor();
this.looper = looper;
}
public unsafe IslandProtoConstraintBatch(Solver solver, BufferPool pool)
{
pool.SpecializeFor <int>().Take(solver.TypeProcessors.Length, out TypeIdToIndex);
Unsafe.InitBlockUnaligned(TypeIdToIndex.Memory, 0xFF, (uint)(TypeIdToIndex.Length * sizeof(int)));
QuickList <IslandProtoTypeBatch, Buffer <IslandProtoTypeBatch> > .Create(pool.SpecializeFor <IslandProtoTypeBatch>(), solver.TypeProcessors.Length, out TypeBatches);
ReferencedBodyHandles = new HandleSet(pool, solver.bodies.HandlePool.HighestPossiblyClaimedId + 1);
}
public void Flush(IThreadDispatcher threadDispatcher = null, bool deterministic = false)
{
OnPreflush(threadDispatcher, deterministic);
//var start = Stopwatch.GetTimestamp();
var jobPool = Pool.SpecializeFor <NarrowPhaseFlushJob>();
QuickList <NarrowPhaseFlushJob, Buffer <NarrowPhaseFlushJob> > .Create(jobPool, 128, out flushJobs);
PairCache.PrepareFlushJobs(ref flushJobs);
//We indirectly pass the determinism state; it's used by the constraint remover bookkeeping.
this.deterministic = deterministic;
var removalBatchJobCount = ConstraintRemover.CreateFlushJobs();
//Note that we explicitly add the constraint remover jobs here.
//The constraint remover can be used in two ways- deactivation style, and narrow phase style.
//In deactivation, we're not actually removing constraints from the simulation completely, so it requires fewer jobs.
//The constraint remover just lets you choose which jobs to call. The narrow phase needs all of them.
flushJobs.EnsureCapacity(flushJobs.Count + removalBatchJobCount + 3, jobPool);
flushJobs.AddUnsafely(new NarrowPhaseFlushJob {
Type = NarrowPhaseFlushJobType.RemoveConstraintsFromBodyLists
});
flushJobs.AddUnsafely(new NarrowPhaseFlushJob {
Type = NarrowPhaseFlushJobType.ReturnConstraintHandles
});
flushJobs.AddUnsafely(new NarrowPhaseFlushJob {
Type = NarrowPhaseFlushJobType.RemoveConstraintFromBatchReferencedHandles
});
for (int i = 0; i < removalBatchJobCount; ++i)
{
flushJobs.AddUnsafely(new NarrowPhaseFlushJob {
Type = NarrowPhaseFlushJobType.RemoveConstraintFromTypeBatch, Index = i
});
}
if (threadDispatcher == null)
{
for (int i = 0; i < flushJobs.Count; ++i)
{
ExecuteFlushJob(ref flushJobs[i], Pool);
}
}
else
{
flushJobIndex = -1;
this.threadDispatcher = threadDispatcher;
threadDispatcher.DispatchWorkers(flushWorkerLoop);
this.threadDispatcher = null;
}
//var end = Stopwatch.GetTimestamp();
//Console.WriteLine($"Flush stage 3 time (us): {1e6 * (end - start) / Stopwatch.Frequency}");
flushJobs.Dispose(Pool.SpecializeFor <NarrowPhaseFlushJob>());
PairCache.Postflush();
ConstraintRemover.Postflush();
OnPostflush(threadDispatcher);
}
public Graph(GraphDescription description, int initialSeriesCapacity = 8)
{
Description = description;
if (initialSeriesCapacity <= 0)
{
throw new ArgumentException("Capacity must be positive.");
}
QuickList <Series, Array <Series> > .Create(new PassthroughArrayPool <Series>(), initialSeriesCapacity, out graphSeries);
}
public ShapesExtractor(ParallelLooper looper, int initialCapacityPerShapeType = 1024)
{
QuickList <SphereInstance, Array <SphereInstance> > .Create(new PassthroughArrayPool <SphereInstance>(), initialCapacityPerShapeType, out spheres);
QuickList <CapsuleInstance, Array <CapsuleInstance> > .Create(new PassthroughArrayPool <CapsuleInstance>(), initialCapacityPerShapeType, out capsules);
QuickList <BoxInstance, Array <BoxInstance> > .Create(new PassthroughArrayPool <BoxInstance>(), initialCapacityPerShapeType, out boxes);
this.looper = looper;
}
public static void Test()
{
var rawPool = new BufferPool();
for (int i = 3; i < 7; ++i)
{
rawPool.EnsureCapacityForPower(1 << 19, i);
}
var bufferPool = rawPool.SpecializeFor <int>();
var random = new Random(5);
const int listCount = 1000;
var lists = new QuickList <int, Buffer <int> > [listCount];
for (int i = 0; i < 1000; ++i)
{
QuickList <int, Buffer <int> > .Create(bufferPool, 0 + random.Next(9), out lists[i]);
ref var list = ref lists[i];
const int anchorSize = 128;
for (int j = 0; j < 1000; ++j)
{
var removeProbability = 0.5f + 0.5f * (list.Count - anchorSize) / anchorSize;
var p = random.NextDouble();
if (p < removeProbability)
{
Debug.Assert(list.Count > 0);
//Note that adds can invalidate the start.
if (p < removeProbability * 0.5)
{
//Remove an element that is actually present.
var toRemoveIndex = random.Next(list.Count);
var predicate = new TestPredicate {
ToCompare = list[toRemoveIndex]
};
var removed = list.FastRemove(ref predicate);
Debug.Assert(removed, "If we selected an element from the list, it should be removable.");
}
else
{
var toRemove = -(1 + random.Next(16));
var predicate = new TestPredicate {
ToCompare = toRemove
};
var removed = list.FastRemove(ref predicate);
Debug.Assert(!removed, "Shouldn't be able to remove things that were never added!");
}
}
else
{
var toAdd = random.Next(256);
list.Add(toAdd, bufferPool);
}
}
}
public WorkerCache(BufferPool pool, int batchCapacity, int minimumCapacityPerBatch)
{
this.pool = pool;
Debug.Assert(minimumCapacityPerBatch > 0);
this.minimumCapacityPerBatch = minimumCapacityPerBatch;
QuickList <TypeBatchIndex, Buffer <TypeBatchIndex> > .Create(pool.SpecializeFor <TypeBatchIndex>(), batchCapacity, out Batches);
QuickList <QuickList <int, Buffer <int> >, Buffer <QuickList <int, Buffer <int> > > > .Create(pool.SpecializeFor <QuickList <int, Buffer <int> > >(), batchCapacity, out BatchHandles);
QuickList <RemovalTarget, Buffer <RemovalTarget> > .Create(pool.SpecializeFor <RemovalTarget>(), batchCapacity, out RemovalTargets);
}
public BoundingBoxLineExtractor()
{
QuickList <ThreadJob, Array <ThreadJob> > .Create(new PassthroughArrayPool <ThreadJob>(), Environment.ProcessorCount *jobsPerThread, out jobs);
//Because we don't know how many lines will be created beforehand, each thread needs a dedicated structure. We'll copy everything together at the end.
//Not the most efficient thing, but it doesn't matter much.
for (int i = 0; i < jobs.Span.Length; ++i)
{
QuickList <LineInstance, Array <LineInstance> > .Create(new PassthroughArrayPool <LineInstance>(), Environment.ProcessorCount *jobsPerThread, out jobs.Span[i].JobLines);
}
workDelegate = Work;
}
/// <summary>
/// Ensures that the underlying id queue can hold at least a certain number of ids.
/// </summary>
/// <param name="count">Number of elements to preallocate space for in the available ids queue.</param>
/// <param name="pool">Pool to pull resized spans from.</param>
public void EnsureCapacity <TPool>(int count, TPool pool) where TPool : IMemoryPool <int, TSpan>
{
if (!AvailableIds.Span.Allocated)
{
//If this was disposed, we must explicitly rehydrate it.
QuickList <int, TSpan> .Create(pool, count, out AvailableIds);
}
else
{
AvailableIds.EnsureCapacity(count, pool);
}
}
/// <summary>
/// Wakes up all bodies and constraints within a set. Doesn't do anything if the set is awake (index zero).
/// </summary>
/// <param name="setIndex">Index of the set to awaken.</param>
public void AwakenSet(int setIndex)
{
if (setIndex > 0)
{
ValidateSleepingSetIndex(setIndex);
//TODO: Some fairly pointless work here- spans or other approaches could help with the API.
QuickList <int, Buffer <int> > .Create(pool.SpecializeFor <int>(), 1, out var list);
list.AddUnsafely(setIndex);
AwakenSets(ref list);
list.Dispose(pool.SpecializeFor <int>());
}
}
public SleepingSetBuilder(BufferPool pool, int initialPairCapacity, int initialCapacityPerCache)
{
var listPool = pool.SpecializeFor <UntypedList>();
listPool.Take(PairCache.CollisionConstraintTypeCount, out ConstraintCaches);
listPool.Take(PairCache.CollisionTypeCount, out CollisionCaches);
//Original values are used to test for existence; have to clear to avoid undefined values.
ConstraintCaches.Clear(0, ConstraintCaches.Length);
CollisionCaches.Clear(0, CollisionCaches.Length);
QuickList <SleepingPair, Buffer <SleepingPair> > .Create(pool.SpecializeFor <SleepingPair>(), initialPairCapacity, out Pairs);
InitialCapacityPerCache = initialCapacityPerCache;
}
public MeshCache(Device device, BufferPool pool, int initialSizeInVertices = 1 << 22)
{
Pool = pool;
pool.Take(initialSizeInVertices, out vertices);
TriangleBuffer = new StructuredBuffer <Vector3>(device, initialSizeInVertices, "Mesh Cache Vertex Buffer");
allocator = new Allocator(initialSizeInVertices);
QuickList <UploadRequest, Buffer <UploadRequest> > .Create(pool.SpecializeFor <UploadRequest>(), 128, out pendingUploads);
QuickList <ulong, Buffer <ulong> > .Create(pool.SpecializeFor <ulong>(), 128, out requestedIds);
QuickSet <ulong, Buffer <ulong>, Buffer <int>, PrimitiveComparer <ulong> > .Create(pool.SpecializeFor <ulong>(), pool.SpecializeFor <int>(), 8, 3, out previouslyAllocatedIds);
}
/// <summary>
/// Awakens a list of set indices.
/// </summary>
/// <param name="setIndices">List of set indices to wake up.</param>
/// <param name="threadDispatcher">Thread dispatcher to use when waking the bodies. Pass null to run on a single thread.</param>
public void AwakenSets(ref QuickList <int, Buffer <int> > setIndices, IThreadDispatcher threadDispatcher = null)
{
QuickList <int, Buffer <int> > .Create(pool.SpecializeFor <int>(), setIndices.Count, out var uniqueSetIndices);
var uniqueSet = new IndexSet(pool, bodies.Sets.Length);
AccumulateUniqueIndices(ref setIndices, ref uniqueSet, ref uniqueSetIndices);
uniqueSet.Dispose(pool);
//Note that we use the same codepath as multithreading, we just don't use a multithreaded dispatch to execute jobs.
//TODO: It would probably be a good idea to add a little heuristic to avoid doing multithreaded dispatches if there are only like 5 total bodies.
//Shouldn't matter too much- the threaded variant should only really be used when doing big batched changes, so having a fixed constant cost isn't that bad.
int threadCount = threadDispatcher == null ? 1 : threadDispatcher.ThreadCount;
//Note that direct wakes always reset activity states. I suspect this is sufficiently universal that no one will ever want the alternative,
//even though the narrowphase does avoid resetting activity states for the sake of faster resleeping when possible.
var(phaseOneJobCount, phaseTwoJobCount) = PrepareJobs(ref uniqueSetIndices, true, threadCount);
if (threadCount > 1)
{
this.jobIndex = -1;
this.jobCount = phaseOneJobCount;
threadDispatcher.DispatchWorkers(phaseOneWorkerDelegate);
}
else
{
for (int i = 0; i < phaseOneJobCount; ++i)
{
ExecutePhaseOneJob(i);
}
}
if (threadCount > 1)
{
this.jobIndex = -1;
this.jobCount = phaseTwoJobCount;
threadDispatcher.DispatchWorkers(phaseTwoWorkerDelegate);
}
else
{
for (int i = 0; i < phaseTwoJobCount; ++i)
{
ExecutePhaseTwoJob(i);
}
}
DisposeForCompletedAwakenings(ref uniqueSetIndices);
uniqueSetIndices.Dispose(pool.SpecializeFor <int>());
}
public ShapesExtractor(Device device, ParallelLooper looper, BufferPool pool, int initialCapacityPerShapeType = 1024)
{
QuickList <SphereInstance, Array <SphereInstance> > .Create(new PassthroughArrayPool <SphereInstance>(), initialCapacityPerShapeType, out spheres);
QuickList <CapsuleInstance, Array <CapsuleInstance> > .Create(new PassthroughArrayPool <CapsuleInstance>(), initialCapacityPerShapeType, out capsules);
QuickList <BoxInstance, Array <BoxInstance> > .Create(new PassthroughArrayPool <BoxInstance>(), initialCapacityPerShapeType, out boxes);
QuickList <TriangleInstance, Array <TriangleInstance> > .Create(new PassthroughArrayPool <TriangleInstance>(), initialCapacityPerShapeType, out triangles);
QuickList <MeshInstance, Array <MeshInstance> > .Create(new PassthroughArrayPool <MeshInstance>(), initialCapacityPerShapeType, out meshes);
this.MeshCache = new MeshCache(device, pool);
this.looper = looper;
}
/// <summary>
/// Resizes the underlying buffer to the smallest size required to hold the given count and the current available id count.
/// </summary>
/// <param name="count">Number of elements to guarantee space for in the available ids queue.</param>
public void Resize <TPool>(int count, TPool pool) where TPool : IMemoryPool <int, TSpan>
{
if (!AvailableIds.Span.Allocated)
{
//If this was disposed, we must explicitly rehydrate it.
QuickList <int, TSpan> .Create(pool, count, out AvailableIds);
return;
}
var targetLength = BufferPool <int> .GetLowestContainingElementCount(Math.Max(count, AvailableIds.Count));
if (AvailableIds.Span.Length != targetLength)
{
AvailableIds.Resize(targetLength, pool);
}
}
internal int Add(ref BodyDescription bodyDescription, int handle, int minimumConstraintCapacity, BufferPool pool)
{
var index = Count;
if (index == IndexToHandle.Length)
{
InternalResize(IndexToHandle.Length * 2, pool);
}
++Count;
IndexToHandle[index] = handle;
//Collidable's broad phase index is left unset. The Bodies collection is responsible for attaching that data.
QuickList <BodyConstraintReference, Buffer <BodyConstraintReference> > .Create(pool.SpecializeFor <BodyConstraintReference>(), minimumConstraintCapacity, out Constraints[index]);
ApplyDescriptionByIndex(index, ref bodyDescription);
return(index);
}
static void FillTrashBuffers(Simulation simulation, Random random)
{
var pool = simulation.BufferPool.SpecializeFor <int>();
var bufferPool = simulation.BufferPool.SpecializeFor <Buffer <int> >();
const int bufferCount = 50;
QuickList <Buffer <int>, Buffer <Buffer <int> > > .Create(bufferPool, bufferCount, out var bufferList);
for (int trashBufferIndex = 0; trashBufferIndex < bufferCount; ++trashBufferIndex)
{
//Pull a buffer from the pool, fill it with trash data, and return it.
ref var buffer = ref bufferList.AllocateUnsafely();
pool.Take(1 << random.Next(18), out buffer);
for (int k = 0; k < buffer.Length; ++k)
{
buffer[k] = random.Next(int.MinValue, int.MaxValue);
}
}
public static void TestListResizing <TSpan, TPool>(TPool pool)
where TSpan : ISpan <int>
where TPool : IMemoryPool <int, TSpan>
{
Random random = new Random(5);
QuickList <int, TSpan> .Create(pool, 4, out var list);
List <int> controlList = new List <int>();
for (int iterationIndex = 0; iterationIndex < 100000; ++iterationIndex)
{
if (random.NextDouble() < 0.7)
{
list.Add(iterationIndex, pool);
controlList.Add(iterationIndex);
}
if (random.NextDouble() < 0.2)
{
var indexToRemove = random.Next(list.Count);
list.RemoveAt(indexToRemove);
controlList.RemoveAt(indexToRemove);
}
if (iterationIndex % 1000 == 0)
{
list.EnsureCapacity(list.Count * 3, pool);
}
else if (iterationIndex % 7777 == 0)
{
list.Compact(pool);
}
}
Debug.Assert(list.Count == controlList.Count);
for (int i = 0; i < list.Count; ++i)
{
var a = list[i];
var b = controlList[i];
Debug.Assert(a == b);
Debug.Assert(list.Count == controlList.Count);
}
list.Dispose(pool);
}
public WorkerPairCache(int workerIndex, BufferPool pool, ref QuickList <int, Buffer <int> > minimumSizesPerConstraintType, ref QuickList <int, Buffer <int> > minimumSizesPerCollisionType,
int pendingCapacity, int minimumPerTypeCapacity = 128)
{
this.workerIndex = workerIndex;
this.pool = pool;
this.minimumPerTypeCapacity = minimumPerTypeCapacity;
const float previousCountMultiplier = 1.25f;
pool.SpecializeFor <UntypedList>().Take((int)(minimumSizesPerConstraintType.Count * previousCountMultiplier), out constraintCaches);
pool.SpecializeFor <UntypedList>().Take((int)(minimumSizesPerCollisionType.Count * previousCountMultiplier), out collisionCaches);
for (int i = 0; i < minimumSizesPerConstraintType.Count; ++i)
{
if (minimumSizesPerConstraintType[i] > 0)
{
constraintCaches[i] = new UntypedList(Math.Max(minimumPerTypeCapacity, (int)(previousCountMultiplier * minimumSizesPerConstraintType[i])), pool);
}
else
{
constraintCaches[i] = new UntypedList();
}
}
//Clear out the remainder of slots to avoid invalid data.
constraintCaches.Clear(minimumSizesPerConstraintType.Count, constraintCaches.Length - minimumSizesPerConstraintType.Count);
for (int i = 0; i < minimumSizesPerCollisionType.Count; ++i)
{
if (minimumSizesPerCollisionType[i] > 0)
{
collisionCaches[i] = new UntypedList(Math.Max(minimumPerTypeCapacity, (int)(previousCountMultiplier * minimumSizesPerCollisionType[i])), pool);
}
else
{
collisionCaches[i] = new UntypedList();
}
}
//Clear out the remainder of slots to avoid invalid data.
collisionCaches.Clear(minimumSizesPerCollisionType.Count, collisionCaches.Length - minimumSizesPerCollisionType.Count);
QuickList <PendingAdd, Buffer <PendingAdd> > .Create(pool.SpecializeFor <PendingAdd>(), pendingCapacity, out PendingAdds);
QuickList <CollidablePair, Buffer <CollidablePair> > .Create(pool.SpecializeFor <CollidablePair>(), pendingCapacity, out PendingRemoves);
}
public Input(Window window)
{
this.window = window.window;
this.window.KeyDown += KeyDown;
this.window.KeyUp += KeyUp;
this.window.MouseDown += MouseDown;
this.window.MouseUp += MouseUp;
this.window.MouseWheel += MouseWheel;
this.window.KeyPress += KeyPress;
var keyPool = new PassthroughArrayPool <Key>();
var mouseButtonPool = new PassthroughArrayPool <MouseButton>();
var intPool = new PassthroughArrayPool <int>();
MouseButtonSet.Create(mouseButtonPool, intPool, 3, 3, out anyDownedButtons);
MouseButtonSet.Create(mouseButtonPool, intPool, 3, 3, out downedButtons);
MouseButtonSet.Create(mouseButtonPool, intPool, 3, 3, out previousDownedButtons);
KeySet.Create(keyPool, intPool, 3, 3, out anyDownedKeys);
KeySet.Create(keyPool, intPool, 3, 3, out downedKeys);
KeySet.Create(keyPool, intPool, 3, 3, out previousDownedKeys);
QuickList <char, Array <char> > .Create(new PassthroughArrayPool <char>(), 32, out TypedCharacters);
}
/// <summary>
/// Prepares the jobs associated with a self test. Must be called before a dispatch over PairTest.
/// </summary>
/// <param name="tree">Tree to test against itself.</param>
/// <param name="overlapHandlers">Callbacks used to handle individual overlaps detected by the self test.</param>
/// <param name="threadCount">Number of threads to prepare jobs for.</param>
public void PrepareJobs(ref Tree tree, TOverlapHandler[] overlapHandlers, int threadCount)
{
//If there are not multiple children, there's no need to recurse.
//This provides a guarantee that there are at least 2 children in each internal node considered by GetOverlapsInNode.
if (tree.leafCount < 2)
{
//We clear it out to avoid keeping any old job counts. The count property is used for scheduling, so incorrect values could break the job scheduler.
jobs = new QuickList <Job, Buffer <Job> >();
return;
}
Debug.Assert(overlapHandlers.Length >= threadCount);
const float jobMultiplier = 1.5f;
var targetJobCount = Math.Max(1, jobMultiplier * threadCount);
leafThreshold = (int)(tree.leafCount / targetJobCount);
QuickList <Job, Buffer <Job> > .Create(Pool.SpecializeFor <Job>(), (int)(targetJobCount * 2), out jobs);
NextNodePair = -1;
this.OverlapHandlers = overlapHandlers;
this.Tree = tree;
//Collect jobs.
CollectJobsInNode(0, tree.leafCount, ref OverlapHandlers[0]);
}
public void Prepare(IThreadDispatcher threadDispatcher = null)
{
int maximumConstraintTypeCount = 0, maximumCollisionTypeCount = 0;
for (int i = 0; i < workerCaches.Count; ++i)
{
workerCaches[i].GetMaximumCacheTypeCounts(out var collision, out var constraint);
if (collision > maximumCollisionTypeCount)
{
maximumCollisionTypeCount = collision;
}
if (constraint > maximumConstraintTypeCount)
{
maximumConstraintTypeCount = constraint;
}
}
QuickList <PreallocationSizes, Buffer <PreallocationSizes> > .Create(pool.SpecializeFor <PreallocationSizes>(), maximumConstraintTypeCount, out var minimumSizesPerConstraintType);
QuickList <PreallocationSizes, Buffer <PreallocationSizes> > .Create(pool.SpecializeFor <PreallocationSizes>(), maximumCollisionTypeCount, out var minimumSizesPerCollisionType);
//Since the minimum size accumulation builds the minimum size incrementally, bad data within the array can corrupt the result- we must clear it.
minimumSizesPerConstraintType.Span.Clear(0, minimumSizesPerConstraintType.Span.Length);
minimumSizesPerCollisionType.Span.Clear(0, minimumSizesPerCollisionType.Span.Length);
for (int i = 0; i < workerCaches.Count; ++i)
{
workerCaches[i].AccumulateMinimumSizes(ref minimumSizesPerConstraintType, ref minimumSizesPerCollisionType);
}
var threadCount = threadDispatcher != null ? threadDispatcher.ThreadCount : 1;
//Ensure that the new worker pair caches can hold all workers.
if (!NextWorkerCaches.Span.Allocated || NextWorkerCaches.Span.Length < threadCount)
{
//The next worker caches should never need to be disposed here. The flush should have taken care of it.
#if DEBUG
for (int i = 0; i < NextWorkerCaches.Count; ++i)
{
Debug.Assert(NextWorkerCaches[i].Equals(default(WorkerPairCache)));
}
#endif
QuickList <WorkerPairCache, Array <WorkerPairCache> > .Create(new PassthroughArrayPool <WorkerPairCache>(), threadCount, out NextWorkerCaches);
}
//Note that we have not initialized the workerCaches from the previous frame. In the event that this is the first frame and there are no previous worker caches,
//there will be no pointers into the caches, and removal analysis loops over the count which defaults to zero- so it's safe.
NextWorkerCaches.Count = threadCount;
var pendingSize = Math.Max(minimumPendingSize, previousPendingSize);
if (threadDispatcher != null)
{
for (int i = 0; i < threadCount; ++i)
{
NextWorkerCaches[i] = new WorkerPairCache(i, threadDispatcher.GetThreadMemoryPool(i), ref minimumSizesPerConstraintType, ref minimumSizesPerCollisionType,
pendingSize, minimumPerTypeCapacity);
}
}
else
{
NextWorkerCaches[0] = new WorkerPairCache(0, pool, ref minimumSizesPerConstraintType, ref minimumSizesPerCollisionType, pendingSize, minimumPerTypeCapacity);
}
minimumSizesPerConstraintType.Dispose(pool.SpecializeFor <PreallocationSizes>());
minimumSizesPerCollisionType.Dispose(pool.SpecializeFor <PreallocationSizes>());
//Create the pair freshness array for the existing overlaps.
pool.Take(Mapping.Count, out PairFreshness);
//This clears 1 byte per pair. 32768 pairs with 10GBps assumed single core bandwidth means about 3 microseconds.
//There is a small chance that multithreading this would be useful in larger simulations- but it would be very, very close.
PairFreshness.Clear(0, Mapping.Count);
}
public BoundingBoxLineExtractor()
{
QuickList <ThreadJob, Array <ThreadJob> > .Create(new PassthroughArrayPool <ThreadJob>(), Environment.ProcessorCount *jobsPerThread, out jobs);
workDelegate = Work;
}
public static void TestChurnStability()
{
var allocator = new Allocator(2048);
var random = new Random(5);
ulong idCounter = 0;
var pool = new PassthroughArrayPool <ulong>();
QuickList <ulong, Array <ulong> > .Create(pool, 8, out var allocatedIds);
QuickList <ulong, Array <ulong> > .Create(pool, 8, out var unallocatedIds);
for (int i = 0; i < 512; ++i)
{
long start;
var id = idCounter++;
//allocator.ValidatePointers();
if (allocator.Allocate(id, 1 + random.Next(5), out start))
{
allocatedIds.Add(id, pool);
}
else
{
unallocatedIds.Add(id, pool);
}
//allocator.ValidatePointers();
}
for (int timestepIndex = 0; timestepIndex < 100000; ++timestepIndex)
{
//First add and remove a bunch randomly.
for (int i = random.Next(Math.Min(allocatedIds.Count, 15)); i >= 0; --i)
{
var indexToRemove = random.Next(allocatedIds.Count);
//allocator.ValidatePointers();
var deallocated = allocator.Deallocate(allocatedIds[indexToRemove]);
Debug.Assert(deallocated);
//allocator.ValidatePointers();
unallocatedIds.Add(allocatedIds[indexToRemove], pool);
allocatedIds.FastRemoveAt(indexToRemove);
}
for (int i = random.Next(Math.Min(unallocatedIds.Count, 15)); i >= 0; --i)
{
var indexToAllocate = random.Next(unallocatedIds.Count);
//allocator.ValidatePointers();
if (allocator.Allocate(unallocatedIds[indexToAllocate], random.Next(3), out long start))
{
//allocator.ValidatePointers();
allocatedIds.Add(unallocatedIds[indexToAllocate], pool);
unallocatedIds.FastRemoveAt(indexToAllocate);
}
//allocator.ValidatePointers();
}
//Check to ensure that everything's still coherent.
for (int i = 0; i < allocatedIds.Count; ++i)
{
Debug.Assert(allocator.Contains(allocatedIds[i]));
}
for (int i = 0; i < unallocatedIds.Count; ++i)
{
Debug.Assert(!allocator.Contains(unallocatedIds[i]));
}
}
//Wind it down.
for (int i = 0; i < allocatedIds.Count; ++i)
{
var deallocated = allocator.Deallocate(allocatedIds[i]);
Debug.Assert(deallocated);
}
//Confirm cleanup.
for (int i = 0; i < allocatedIds.Count; ++i)
{
Debug.Assert(!allocator.Contains(allocatedIds[i]));
}
for (int i = 0; i < unallocatedIds.Count; ++i)
{
Debug.Assert(!allocator.Contains(unallocatedIds[i]));
}
}
