PxsTransformCache.h

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// Copyright (c) 2001-2004 NovodeX AG. All rights reserved.

// Copyright (c) 2004-2008 AGEIA Technologies, Inc. All rights reserved.

// SPDX-FileCopyrightText: Copyright (c) 2008-2026 NVIDIA CORPORATION & AFFILIATES. All rights reserved.

// SPDX-License-Identifier: Apache-2.0

#ifndef PXS_TRANSFORM_CACHE_H

#define PXS_TRANSFORM_CACHE_H

#include "CmIDPool.h"

#include "PxsHeapStats.h"

#include "PxsCachedTransform.h"

#include "foundation/PxBitMap.h"

#include "foundation/PxUserAllocated.h"

#include "CmPinnableArray.h"

#define PX_DEFAULT_CACHE_SIZE 512 // this is currently not in use

namespace physx

	class PxsTransformCache : public PxUserAllocated

		typedef PxU32 RefCountType;

	public:

		PxsTransformCache(Cm::VirtualAllocatorCallback& alloc, Cm::PinnableAllocatorFallback::Enum fallback) :

			mTransformCache(alloc, PxsHeapStats::eNARROWPHASE, fallback), mHasAnythingChanged(true), mAllocFailed(false)

			/*mTransformCache.reserve(PX_DEFAULT_CACHE_SIZE);

			mTransformCache.forceSize_Unsafe(PX_DEFAULT_CACHE_SIZE);*/

			mUsedSize = 0;

		bool initEntry(PxU32 index)

			PxU32 oldCapacity = mTransformCache.capacity();

			if (index >= oldCapacity)

				PxU32 newCapacity = PxNextPowerOfTwo(index);

				if(!mTransformCache.reserve(newCapacity))

					mAllocFailed = true;

					return false;

				mTransformCache.forceSize_Unsafe(newCapacity);

			mUsedSize = PxMax(mUsedSize, index + 1u);

			return true;

		PX_FORCE_INLINE void setTransformCache(const PxTransform& transform, PxU32 flags, PxU32 index)

			mTransformCache[index].transform = transform;

			mTransformCache[index].flags = flags;

			mHasAnythingChanged = true;

		PX_FORCE_INLINE const PxsCachedTransform& getTransformCache(PxU32 index) const

			return mTransformCache[index];

		PX_FORCE_INLINE PxsCachedTransform& getTransformCache(PxU32 index)

			return mTransformCache[index];

		PX_FORCE_INLINE void shiftTransforms(const PxVec3& shift)

			for (PxU32 i = 0; i < mTransformCache.capacity(); i++)

				mTransformCache[i].transform.p += shift;

			mHasAnythingChanged = true;

		PX_FORCE_INLINE PxU32 getTotalSize() const

			return mUsedSize;

		PX_FORCE_INLINE const PxsCachedTransform* getTransforms() const

			return mTransformCache.begin();

		PX_FORCE_INLINE PxsCachedTransform* getTransforms()

			return mTransformCache.begin();

		PX_FORCE_INLINE	void resetChangedState()	{ mHasAnythingChanged = false;	}

		PX_FORCE_INLINE	void setChangedState()		{ mHasAnythingChanged = true;	}

		PX_FORCE_INLINE	bool hasChanged()	const	{ return mHasAnythingChanged;	}

		PX_FORCE_INLINE bool hadAllocationFailure()	const	{ return mAllocFailed;	}

	protected:

		Cm::PinnableArray<PxsCachedTransform>	mTransformCache;

	private:

		PxU32									mUsedSize;

		bool									mHasAnythingChanged;

		bool									mAllocFailed;

};

#endif