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//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions
// are met:
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
// documentation and/or other materials provided with the distribution.
// * Neither the name of NVIDIA CORPORATION nor the names of its
// contributors may be used to endorse or promote products derived
// from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
// PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
// EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
// PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
// OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// Copyright (c) 2008-2018 NVIDIA Corporation. All rights reserved.
// Copyright (c) 2004-2008 AGEIA Technologies, Inc. All rights reserved.
// Copyright (c) 2001-2004 NovodeX AG. All rights reserved.
#include "CuFabric.h"
#include "CuContextLock.h"
#include "CuFactory.h"
#if PX_VC
#pragma warning(disable : 4365) // 'action' : conversion from 'type_1' to 'type_2', signed/unsigned mismatch
#endif
using namespace physx;
using namespace shdfnd;
cloth::CuTether::CuTether(uint16_t anchor, uint16_t length) : mAnchor(anchor), mLength(length)
{
}
cloth::CuFabric::CuFabric(CuFactory& factory, uint32_t numParticles, Range<const uint32_t> phases,
Range<const uint32_t> sets, Range<const float> restvalues, Range<const uint32_t> indices,
Range<const uint32_t> anchors, Range<const float> tetherLengths,
Range<const uint32_t> triangles, uint32_t id)
: CuContextLock(factory)
, mFactory(factory)
, mNumParticles(numParticles)
, mPhases(mFactory.mContextManager, phases.begin(), phases.end())
, mSets(mFactory.mContextManager)
, mRestvalues(mFactory.mContextManager, restvalues.begin(), restvalues.end())
, mIndices(mFactory.mContextManager)
, mTethers(mFactory.mContextManager)
, mTriangles(mFactory.mContextManager)
, mId(id)
{
// should no longer be prefixed with 0
PX_ASSERT(sets.front() != 0);
PX_ASSERT(sets.back() == restvalues.size());
PX_ASSERT(restvalues.size() * 2 == indices.size());
PX_ASSERT(mNumParticles > *maxElement(indices.begin(), indices.end()));
// copy to device, add leading zero
mSets.reserve(sets.size() + 1);
mSets.push_back(0);
mSets.push_back(sets.begin(), sets.end());
// manually convert uint32_t indices to uint16_t in temp memory
Vector<uint16_t>::Type hostIndices;
hostIndices.resizeUninitialized(indices.size());
Vector<uint16_t>::Type::Iterator dIt = hostIndices.begin();
const uint32_t* it = indices.begin();
const uint32_t* end = indices.end();
for(; it != end; ++it, ++dIt)
*dIt = uint16_t(*it);
// copy to device vector in one go
mIndices.assign(hostIndices.begin(), hostIndices.end());
// gather data per phase
mNumConstraintsInPhase.reserve(phases.size());
CuDevicePointer<const float> devRestvalues = mRestvalues.begin();
CuDevicePointer<const uint16_t> devIndices = mIndices.begin();
for(const uint32_t* pIt = phases.begin(); pIt != phases.end(); ++pIt)
{
uint32_t setIndex = *pIt;
uint32_t firstIndex = setIndex ? sets[setIndex - 1] : 0;
uint32_t lastIndex = sets[setIndex];
mNumConstraintsInPhase.pushBack(lastIndex - firstIndex);
mRestvaluesInPhase.pushBack(devRestvalues + firstIndex);
mIndicesInPhase.pushBack(devIndices + 2 * firstIndex);
}
// tethers
PX_ASSERT(anchors.size() == tetherLengths.size());
mTetherLengthScale =
tetherLengths.empty() ? 1.0f : *maxElement(tetherLengths.begin(), tetherLengths.end()) / USHRT_MAX;
float inverseScale = 1 / (mTetherLengthScale + FLT_EPSILON);
Vector<CuTether>::Type tethers;
tethers.reserve(anchors.size());
for(; !anchors.empty(); anchors.popFront(), tetherLengths.popFront())
{
tethers.pushBack(CuTether(uint16_t(anchors.front()), uint16_t(tetherLengths.front() * inverseScale + 0.5f)));
}
mTethers.assign(tethers.begin(), tethers.end());
// triangles
hostIndices.resizeUninitialized(triangles.size());
dIt = hostIndices.begin();
it = triangles.begin();
end = triangles.end();
for(; it != end; ++it, ++dIt)
*dIt = uint16_t(*it);
mTriangles.assign(hostIndices.begin(), hostIndices.end());
CuContextLock::release();
// add to factory
mFactory.mFabrics.pushBack(this);
}
cloth::CuFabric::~CuFabric()
{
CuContextLock::acquire();
Vector<CuFabric*>::Type::Iterator fIt = mFactory.mFabrics.find(this);
PX_ASSERT(fIt != mFactory.mFabrics.end());
mFactory.mFabrics.replaceWithLast(fIt);
}
cloth::Factory& physx::cloth::CuFabric::getFactory() const
{
return mFactory;
}
uint32_t cloth::CuFabric::getNumPhases() const
{
return uint32_t(mPhases.size());
}
uint32_t cloth::CuFabric::getNumRestvalues() const
{
return uint32_t(mRestvalues.size());
}
uint32_t cloth::CuFabric::getNumSets() const
{
return uint32_t(mSets.size() - 1);
}
uint32_t cloth::CuFabric::getNumIndices() const
{
return uint32_t(mIndices.size());
}
uint32_t cloth::CuFabric::getNumParticles() const
{
return mNumParticles;
}
uint32_t physx::cloth::CuFabric::getNumTethers() const
{
return uint32_t(mTethers.size());
}
uint32_t physx::cloth::CuFabric::getNumTriangles() const
{
return uint32_t(mTriangles.size()) / 3;
}
void physx::cloth::CuFabric::scaleRestvalues(float scale)
{
CuContextLock contextLock(mFactory);
Vector<float>::Type restvalues(uint32_t(mRestvalues.size()));
mFactory.copyToHost(mRestvalues.begin().get(), mRestvalues.end().get(), restvalues.begin());
Vector<float>::Type::Iterator rIt, rEnd = restvalues.end();
for(rIt = restvalues.begin(); rIt != rEnd; ++rIt)
*rIt *= scale;
mRestvalues = restvalues;
}
void physx::cloth::CuFabric::scaleTetherLengths(float scale)
{
// cloth instances won't pick this up until CuClothData is dirty!
mTetherLengthScale *= scale;
}
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