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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.
#ifndef PXC_NPCACHE_H
#define PXC_NPCACHE_H
#include "foundation/PxMemory.h"
#include "PsIntrinsics.h"
#include "PxcNpCacheStreamPair.h"
#include "PsPool.h"
#include "PsFoundation.h"
#include "GuContactMethodImpl.h"
#include "PsUtilities.h"
namespace physx
{
template <typename T>
void PxcNpCacheWrite(PxcNpCacheStreamPair& streams,
Gu::Cache& cache,
const T& payload,
PxU32 bytes,
const PxU8* data)
{
const PxU32 payloadSize = (sizeof(payload)+3)&~3;
cache.mCachedSize = Ps::to16((payloadSize + 4 + bytes + 0xF)&~0xF);
PxU8* ls = streams.reserve(cache.mCachedSize);
cache.mCachedData = ls;
if(ls==NULL || (reinterpret_cast<PxU8*>(-1))==ls)
{
if(ls==NULL)
{
PX_WARN_ONCE(
"Reached limit set by PxSceneDesc::maxNbContactDataBlocks - ran out of buffer space for narrow phase. "
"Either accept dropped contacts or increase buffer size allocated for narrow phase by increasing PxSceneDesc::maxNbContactDataBlocks.");
return;
}
else
{
PX_WARN_ONCE(
"Attempting to allocate more than 16K of contact data for a single contact pair in narrowphase. "
"Either accept dropped contacts or simplify collision geometry.");
cache.mCachedData = NULL;
ls = NULL;
return;
}
}
*reinterpret_cast<T*>(ls) = payload;
*reinterpret_cast<PxU32*>(ls+payloadSize) = bytes;
if(data)
PxMemCopy(ls+payloadSize+sizeof(PxU32), data, bytes);
}
template <typename T>
PxU8* PxcNpCacheWriteInitiate(PxcNpCacheStreamPair& streams, Gu::Cache& cache, const T& payload, PxU32 bytes)
{
PX_UNUSED(payload);
const PxU32 payloadSize = (sizeof(payload)+3)&~3;
cache.mCachedSize = Ps::to16((payloadSize + 4 + bytes + 0xF)&~0xF);
PxU8* ls = streams.reserve(cache.mCachedSize);
cache.mCachedData = ls;
if(NULL==ls || reinterpret_cast<PxU8*>(-1)==ls)
{
if(NULL==ls)
{
PX_WARN_ONCE(
"Reached limit set by PxSceneDesc::maxNbContactDataBlocks - ran out of buffer space for narrow phase. "
"Either accept dropped contacts or increase buffer size allocated for narrow phase by increasing PxSceneDesc::maxNbContactDataBlocks.");
}
else
{
PX_WARN_ONCE(
"Attempting to allocate more than 16K of contact data for a single contact pair in narrowphase. "
"Either accept dropped contacts or simplify collision geometry.");
cache.mCachedData = NULL;
ls = NULL;
}
}
return ls;
}
template <typename T>
PX_FORCE_INLINE void PxcNpCacheWriteFinalize(PxU8* ls, const T& payload, PxU32 bytes, const PxU8* data)
{
const PxU32 payloadSize = (sizeof(payload)+3)&~3;
*reinterpret_cast<T*>(ls) = payload;
*reinterpret_cast<PxU32*>(ls+payloadSize) = bytes;
if(data)
PxMemCopy(ls+payloadSize+sizeof(PxU32), data, bytes);
}
template <typename T>
PX_FORCE_INLINE PxU8* PxcNpCacheRead(Gu::Cache& cache, T*& payload)
{
PxU8* ls = cache.mCachedData;
payload = reinterpret_cast<T*>(ls);
const PxU32 payloadSize = (sizeof(T)+3)&~3;
return reinterpret_cast<PxU8*>(ls+payloadSize+sizeof(PxU32));
}
template <typename T>
const PxU8* PxcNpCacheRead2(Gu::Cache& cache, T& payload, PxU32& bytes)
{
const PxU8* ls = cache.mCachedData;
if(ls==NULL)
{
bytes = 0;
return NULL;
}
const PxU32 payloadSize = (sizeof(payload)+3)&~3;
payload = *reinterpret_cast<const T*>(ls);
bytes = *reinterpret_cast<const PxU32*>(ls+payloadSize);
PX_ASSERT(cache.mCachedSize == ((payloadSize + 4 + bytes+0xF)&~0xF));
return reinterpret_cast<const PxU8*>(ls+payloadSize+sizeof(PxU32));
}
}
#endif // #ifndef PXC_NPCACHE_H
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