From 5581909a4d19db97304449f66404ff99a0429d3f Mon Sep 17 00:00:00 2001
From: mtamis <mtamis@nvidia.com>
Date: Tue, 28 Feb 2017 18:24:59 +0100
Subject: Add visual samples.

---
 NvCloth/samples/SampleBase/utils/JobManager.cpp | 136 ++++++++++++++++++++++++
 1 file changed, 136 insertions(+)
 create mode 100644 NvCloth/samples/SampleBase/utils/JobManager.cpp

(limited to 'NvCloth/samples/SampleBase/utils/JobManager.cpp')

diff --git a/NvCloth/samples/SampleBase/utils/JobManager.cpp b/NvCloth/samples/SampleBase/utils/JobManager.cpp
new file mode 100644
index 0000000..093db60
--- /dev/null
+++ b/NvCloth/samples/SampleBase/utils/JobManager.cpp
@@ -0,0 +1,136 @@
+/*
+* Copyright (c) 2008-2017, NVIDIA CORPORATION.  All rights reserved.
+*
+* NVIDIA CORPORATION and its licensors retain all intellectual property
+* and proprietary rights in and to this software, related documentation
+* and any modifications thereto.  Any use, reproduction, disclosure or
+* distribution of this software and related documentation without an express
+* license agreement from NVIDIA CORPORATION is strictly prohibited.
+*/
+
+#include "JobManager.h"
+#define _USE_MATH_DEFINES
+#include <math.h>
+#include <NvCloth/Solver.h>
+
+void Job::Initialize(JobManager* parent, std::function<void(Job*)> function, int refcount)
+{
+	mFunction = function;
+	mParent = parent;
+	Reset(refcount);
+}
+
+Job::Job(const Job& job)
+{
+	mFunction = job.mFunction;
+	mParent = job.mParent;
+	mRefCount.store(job.mRefCount);
+	mFinished = job.mFinished;
+}
+
+void Job::Reset(int refcount)
+{
+	mRefCount = refcount;
+	mFinished = false;
+}
+
+void Job::Execute()
+{
+	if (mFunction)
+		mFunction(this);
+	else
+		ExecuteInternal();
+
+	mFinishedLock.lock();
+	mFinished = true;
+	mFinishedLock.unlock();
+	mFinishedEvent.notify_one();
+}
+
+void Job::AddReference()
+{
+	mRefCount++;
+}
+void Job::RemoveReference()
+{
+	if (0 == --mRefCount)
+	{
+		mParent->Submit(this);
+	}
+}
+
+void Job::Wait()
+{
+	std::unique_lock<std::mutex> lock(mFinishedLock);
+	mFinishedEvent.wait(lock, [this](){return mFinished;} );
+	return;
+}
+
+void JobManager::WorkerEntryPoint(JobManager* parrent)
+{
+	while (true)
+	{
+		Job* job;
+		{
+			std::unique_lock<std::mutex> lock(parrent->mJobQueueLock);
+			while (parrent->mJobQueue.size() == 0 && !parrent->mQuit)
+				parrent->mJobQueueEvent.wait(lock);
+
+			if (parrent->mQuit)
+				return;
+
+			job = parrent->mJobQueue.front();
+			parrent->mJobQueue.pop();
+		}
+		job->Execute();
+	}
+}
+
+void JobManager::Submit(Job* job)
+{
+	mJobQueueLock.lock();
+	mJobQueue.push(job);
+	mJobQueueLock.unlock();
+	mJobQueueEvent.notify_one();
+}
+
+void MultithreadedSolverHelper::Initialize(nv::cloth::Solver* solver, JobManager* jobManager)
+{
+	mSolver = solver;
+	mJobManager = jobManager;
+	mEndSimulationJob.Initialize(mJobManager, [this](Job*) {
+		mSolver->endSimulation();
+	});
+
+	mStartSimulationJob.Initialize(mJobManager, [this](Job*) {
+		mSolver->beginSimulation(mDt);
+		for(int j = 0; j < mSolver->getSimulationChunkCount(); j++)
+			mSimulationChunkJobs[j].RemoveReference();
+	});
+}
+
+void MultithreadedSolverHelper::StartSimulation(float dt)
+{
+	mDt = dt;
+
+	if (mSolver->getSimulationChunkCount() != mSimulationChunkJobs.size())
+	{
+		mSimulationChunkJobs.resize(mSolver->getSimulationChunkCount(), Job());
+		for (int j = 0; j < mSolver->getSimulationChunkCount(); j++)
+			mSimulationChunkJobs[j].Initialize(mJobManager, [this, j](Job*) {mSolver->simulateChunk(j); mEndSimulationJob.RemoveReference(); });
+	}
+	else
+	{
+		for (int j = 0; j < mSolver->getSimulationChunkCount(); j++)
+			mSimulationChunkJobs[j].Reset();
+	}
+	mStartSimulationJob.Reset();
+	mEndSimulationJob.Reset(mSolver->getSimulationChunkCount());
+	mStartSimulationJob.RemoveReference();
+	
+}
+
+void MultithreadedSolverHelper::WaitForSimulation()
+{
+	mEndSimulationJob.Wait();
+}
\ No newline at end of file
-- 
cgit v1.2.3