include/foundation/PxBroadcast.h
File members: include/foundation/PxBroadcast.h
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// Copyright (c) 2008-2024 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 PX_BROADCAST_H
#define PX_BROADCAST_H
#include "foundation/PxInlineArray.h"
#include "foundation/PxSimpleTypes.h"
#include "foundation/PxErrorCallback.h"
#if !PX_DOXYGEN
namespace physx
{
#endif
class PxAllocationListener
{
public:
virtual void onAllocation(size_t size, const char* typeName, const char* filename, int line,
void* allocatedMemory) = 0;
virtual void onDeallocation(void* allocatedMemory) = 0;
protected:
virtual ~PxAllocationListener()
{
}
};
template <class Listener, class Base>
class PxBroadcast : public Base
{
public:
static const uint32_t MAX_NB_LISTENERS = 16;
PxBroadcast()
{
}
void registerListener(Listener& listener)
{
if(mListeners.size() < MAX_NB_LISTENERS)
mListeners.pushBack(&listener);
}
void deregisterListener(Listener& listener)
{
mListeners.findAndReplaceWithLast(&listener);
}
uint32_t getNbListeners() const
{
return mListeners.size();
}
Listener& getListener(uint32_t index)
{
PX_ASSERT(index <= mListeners.size());
return *mListeners[index];
}
protected:
virtual ~PxBroadcast()
{
}
physx::PxInlineArray<Listener*, MAX_NB_LISTENERS, physx::PxAllocator> mListeners;
};
class PxBroadcastingAllocator : public PxBroadcast<PxAllocationListener, PxAllocatorCallback>
{
PX_NOCOPY(PxBroadcastingAllocator)
public:
PxBroadcastingAllocator(PxAllocatorCallback& allocator, PxErrorCallback& error) : mAllocator(allocator), mError(error)
{
mListeners.clear();
}
virtual ~PxBroadcastingAllocator()
{
mListeners.clear();
}
void* allocate(size_t size, const char* typeName, const char* filename, int line)
{
void* mem = mAllocator.allocate(size, typeName, filename, line);
if(!mem)
{
mError.reportError(PxErrorCode::eABORT, "User allocator returned NULL.", PX_FL);
return NULL;
}
if((size_t(mem) & 15))
{
mError.reportError(PxErrorCode::eABORT, "Allocations must be 16-byte aligned.", PX_FL);
return NULL;
}
for(uint32_t i = 0; i < mListeners.size(); i++)
mListeners[i]->onAllocation(size, typeName, filename, line, mem);
return mem;
}
void deallocate(void* ptr)
{
for(uint32_t i = 0; i < mListeners.size(); i++)
{
mListeners[i]->onDeallocation(ptr);
}
mAllocator.deallocate(ptr);
}
private:
PxAllocatorCallback& mAllocator;
PxErrorCallback& mError;
};
class PxBroadcastingErrorCallback : public PxBroadcast<PxErrorCallback, PxErrorCallback>
{
PX_NOCOPY(PxBroadcastingErrorCallback)
public:
PxBroadcastingErrorCallback(PxErrorCallback& errorCallback)
{
registerListener(errorCallback);
}
virtual ~PxBroadcastingErrorCallback()
{
mListeners.clear();
}
void reportError(PxErrorCode::Enum code, const char* message, const char* file, int line)
{
for(uint32_t i = 0; i < mListeners.size(); i++)
mListeners[i]->reportError(code, message, file, line);
}
};
#if !PX_DOXYGEN
} // namespace physx
#endif
#endif