From 3dfe2108cfab31ba3ee5527e217d0d8e99a51162 Mon Sep 17 00:00:00 2001 From: git perforce import user Date: Tue, 25 Oct 2016 12:29:14 -0600 Subject: Initial commit: PhysX 3.4.0 Update @ 21294896 APEX 1.4.0 Update @ 21275617 [CL 21300167] --- .../common/include/utils/PxcScratchAllocator.h | 138 +++++++++++++++++++ .../common/include/utils/PxcThreadCoherentCache.h | 150 +++++++++++++++++++++ 2 files changed, 288 insertions(+) create mode 100644 PhysX_3.4/Source/LowLevel/common/include/utils/PxcScratchAllocator.h create mode 100644 PhysX_3.4/Source/LowLevel/common/include/utils/PxcThreadCoherentCache.h (limited to 'PhysX_3.4/Source/LowLevel/common/include/utils') diff --git a/PhysX_3.4/Source/LowLevel/common/include/utils/PxcScratchAllocator.h b/PhysX_3.4/Source/LowLevel/common/include/utils/PxcScratchAllocator.h new file mode 100644 index 00000000..aaf43626 --- /dev/null +++ b/PhysX_3.4/Source/LowLevel/common/include/utils/PxcScratchAllocator.h @@ -0,0 +1,138 @@ +// This code contains NVIDIA Confidential Information and is disclosed to you +// under a form of NVIDIA software license agreement provided separately to you. +// +// Notice +// NVIDIA Corporation and its licensors retain all intellectual property and +// proprietary rights in and to this software and 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. +// +// ALL NVIDIA DESIGN SPECIFICATIONS, CODE ARE PROVIDED "AS IS.". NVIDIA MAKES +// NO WARRANTIES, EXPRESSED, IMPLIED, STATUTORY, OR OTHERWISE WITH RESPECT TO +// THE MATERIALS, AND EXPRESSLY DISCLAIMS ALL IMPLIED WARRANTIES OF NONINFRINGEMENT, +// MERCHANTABILITY, AND FITNESS FOR A PARTICULAR PURPOSE. +// +// Information and code furnished is believed to be accurate and reliable. +// However, NVIDIA Corporation assumes no responsibility for the consequences of use of such +// information or for any infringement of patents or other rights of third parties that may +// result from its use. No license is granted by implication or otherwise under any patent +// or patent rights of NVIDIA Corporation. Details are subject to change without notice. +// This code supersedes and replaces all information previously supplied. +// NVIDIA Corporation products are not authorized for use as critical +// components in life support devices or systems without express written approval of +// NVIDIA Corporation. +// +// Copyright (c) 2008-2016 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_SCRATCHALLOCATOR_H +#define PXC_SCRATCHALLOCATOR_H + +#include "foundation/PxAssert.h" +#include "PxvConfig.h" +#include "PsMutex.h" +#include "PsArray.h" +#include "PsAllocator.h" + +namespace physx +{ +class PxcScratchAllocator +{ + PX_NOCOPY(PxcScratchAllocator) +public: + PxcScratchAllocator() : mStack(PX_DEBUG_EXP("PxcScratchAllocator")), mStart(NULL), mSize(0) + { + mStack.reserve(64); + mStack.pushBack(0); + } + + void setBlock(void* addr, PxU32 size) + { + // if the stack is not empty then some scratch memory was not freed on the previous frame. That's + // likely indicative of a problem, because when the scratch block is too small the memory will have + // come from the heap + + PX_ASSERT(mStack.size()==1); + mStack.popBack(); + + mStart = reinterpret_cast(addr); + mSize = size; + mStack.pushBack(mStart + size); + } + + void* allocAll(PxU32& size) + { + Ps::Mutex::ScopedLock lock(mLock); + PX_ASSERT(mStack.size()>0); + size = PxU32(mStack.back()-mStart); + + if(size==0) + return NULL; + + mStack.pushBack(mStart); + return mStart; + } + + + void* alloc(PxU32 requestedSize, bool fallBackToHeap = false) + { + requestedSize = (requestedSize+15)&~15; + + Ps::Mutex::ScopedLock lock(mLock); + PX_ASSERT(mStack.size()>=1); + + PxU8* top = mStack.back(); + + if(top - mStart >= ptrdiff_t(requestedSize)) + { + PxU8* addr = top - requestedSize; + mStack.pushBack(addr); + return addr; + } + + if(!fallBackToHeap) + return NULL; + + return PX_ALLOC(requestedSize, "Scratch Block Fallback"); + } + + void free(void* addr) + { + PX_ASSERT(addr!=NULL); + if(!isScratchAddr(addr)) + { + PX_FREE(addr); + return; + } + + Ps::Mutex::ScopedLock lock(mLock); + PX_ASSERT(mStack.size()>1); + + PxU32 i=mStack.size()-1; + while(mStack[i](addr); + return a>= mStart && a mStack; + PxU8* mStart; + PxU32 mSize; +}; + +} + +#endif diff --git a/PhysX_3.4/Source/LowLevel/common/include/utils/PxcThreadCoherentCache.h b/PhysX_3.4/Source/LowLevel/common/include/utils/PxcThreadCoherentCache.h new file mode 100644 index 00000000..ed8a37a5 --- /dev/null +++ b/PhysX_3.4/Source/LowLevel/common/include/utils/PxcThreadCoherentCache.h @@ -0,0 +1,150 @@ +// This code contains NVIDIA Confidential Information and is disclosed to you +// under a form of NVIDIA software license agreement provided separately to you. +// +// Notice +// NVIDIA Corporation and its licensors retain all intellectual property and +// proprietary rights in and to this software and 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. +// +// ALL NVIDIA DESIGN SPECIFICATIONS, CODE ARE PROVIDED "AS IS.". NVIDIA MAKES +// NO WARRANTIES, EXPRESSED, IMPLIED, STATUTORY, OR OTHERWISE WITH RESPECT TO +// THE MATERIALS, AND EXPRESSLY DISCLAIMS ALL IMPLIED WARRANTIES OF NONINFRINGEMENT, +// MERCHANTABILITY, AND FITNESS FOR A PARTICULAR PURPOSE. +// +// Information and code furnished is believed to be accurate and reliable. +// However, NVIDIA Corporation assumes no responsibility for the consequences of use of such +// information or for any infringement of patents or other rights of third parties that may +// result from its use. No license is granted by implication or otherwise under any patent +// or patent rights of NVIDIA Corporation. Details are subject to change without notice. +// This code supersedes and replaces all information previously supplied. +// NVIDIA Corporation products are not authorized for use as critical +// components in life support devices or systems without express written approval of +// NVIDIA Corporation. +// +// Copyright (c) 2008-2016 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_THREADCOHERENTCACHE_H +#define PXC_THREADCOHERENTCACHE_H + +#include "PsMutex.h" +#include "PsAllocator.h" +#include "PsSList.h" + +namespace physx +{ + +class PxsContext; +/*! +Controls a pool of large objects which must be thread safe. +Tries to return the object most recently used by the thread(for better cache coherancy). +Assumes the object has a default contructor. + +(Note the semantics are different to a pool because we dont want to construct/destroy each time +an object is requested, which may be expensive). + +TODO: add thread coherancy. +*/ +template +class PxcThreadCoherentCache : public Ps::AlignedAllocator<16, Ps::ReflectionAllocator > +{ + typedef Ps::AlignedAllocator<16, Ps::ReflectionAllocator > Allocator; + PX_NOCOPY(PxcThreadCoherentCache) +public: + + typedef Ps::SListEntry EntryBase; + + PX_INLINE PxcThreadCoherentCache(Params* params, const Allocator& alloc = Allocator()) : Allocator(alloc), mParams(params) + { + } + + PX_INLINE ~PxcThreadCoherentCache() + { + T* np = static_cast(root.pop()); + + while(np!=NULL) + { + np->~T(); + Allocator::deallocate(np); + np = static_cast(root.pop()); + } + } + + PX_INLINE T* get() + { + T* rv = static_cast(root.pop()); + if(rv==NULL) + { + rv = reinterpret_cast(Allocator::allocate(sizeof(T), __FILE__, __LINE__)); + new (rv) T(mParams); + } + + return rv; + } + + PX_INLINE void put(T* item) + { + root.push(*item); + } + + +private: + Ps::SList root; + Params* mParams; + + template + friend class PxcThreadCoherentCacheIterator; +}; + +/*! +Used to iterate over all objects controlled by the cache. + +Note: The iterator flushes the cache(extracts all items on construction and adds them back on +destruction so we can iterate the list in a safe manner). +*/ +template +class PxcThreadCoherentCacheIterator +{ +public: + PxcThreadCoherentCacheIterator(PxcThreadCoherentCache& cache) : mCache(cache) + { + mNext = cache.root.flush(); + mFirst = mNext; + } + ~PxcThreadCoherentCacheIterator() + { + Ps::SListEntry* np = mFirst; + while(np != NULL) + { + Ps::SListEntry* npNext = np->next(); + mCache.root.push(*np); + np = npNext; + } + } + + PX_INLINE T* getNext() + { + if(mNext == NULL) + return NULL; + + T* rv = static_cast(mNext); + mNext = mNext->next(); + + return rv; + } +private: + + PxcThreadCoherentCacheIterator& operator=(const PxcThreadCoherentCacheIterator&); + PxcThreadCoherentCache &mCache; + Ps::SListEntry* mNext; + Ps::SListEntry* mFirst; + +}; + +} + +#endif -- cgit v1.2.3