Projekt_Grafika/dependencies/physx-4.1/source/physxextensions/src/ExtPxStringTable.cpp

101 lines
3.4 KiB
C++

//
// 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) 2008-2019 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 "foundation/PxAllocatorCallback.h"
#include "extensions/PxStringTableExt.h"
#include "PxProfileAllocatorWrapper.h" //tools for using a custom allocator
#include "PsString.h"
#include "PsUserAllocated.h"
#include "CmPhysXCommon.h"
namespace physx
{
using namespace physx::profile;
class PxStringTableImpl : public PxStringTable, public Ps::UserAllocated
{
typedef PxProfileHashMap<const char*, PxU32> THashMapType;
PxProfileAllocatorWrapper mWrapper;
THashMapType mHashMap;
public:
PxStringTableImpl( PxAllocatorCallback& inAllocator )
: mWrapper ( inAllocator )
, mHashMap ( mWrapper )
{
}
virtual ~PxStringTableImpl()
{
for ( THashMapType::Iterator iter = mHashMap.getIterator();
iter.done() == false;
++iter )
PX_PROFILE_DELETE( mWrapper, const_cast<char*>( iter->first ) );
mHashMap.clear();
}
virtual const char* allocateStr( const char* inSrc )
{
if ( inSrc == NULL )
inSrc = "";
const THashMapType::Entry* existing( mHashMap.find( inSrc ) );
if ( existing == NULL )
{
size_t len( strlen( inSrc ) );
len += 1;
char* newMem = reinterpret_cast<char*>(mWrapper.getAllocator().allocate( len, "PxStringTableImpl: const char*", __FILE__, __LINE__ ));
physx::shdfnd::strlcpy( newMem, len, inSrc );
mHashMap.insert( newMem, 1 );
return newMem;
}
else
{
++const_cast<THashMapType::Entry*>(existing)->second;
return existing->first;
}
}
/**
* Release the string table and all the strings associated with it.
*/
virtual void release()
{
PX_PROFILE_DELETE( mWrapper.getAllocator(), this );
}
};
PxStringTable& PxStringTableExt::createStringTable( PxAllocatorCallback& inAllocator )
{
return *PX_PROFILE_NEW( inAllocator, PxStringTableImpl )( inAllocator );
}
}