feat(physics): wire physx sdk into build

engine/third_party/physx/source/lowleveldynamics/src/DyFrictionPatchStreamPair.h

@@ -0,0 +1,125 @@
+// 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) 2008-2025 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 DY_FRICTION_PATCH_STREAM_PAIR_H
+#define DY_FRICTION_PATCH_STREAM_PAIR_H
+
+#include "foundation/PxSimpleTypes.h"
+#include "PxvConfig.h"
+#include "foundation/PxMutex.h"
+#include "foundation/PxArray.h"
+
+// Each narrow phase thread has an input stream of friction patches from the
+// previous frame and an output stream of friction patches which will be
+// saved for next frame. The patches persist for exactly one frame at which
+// point they get thrown away.
+
+
+// There is a stream pair per thread. A contact callback reserves space
+// for its friction patches and gets a cookie in return that can stash
+// for next frame. Cookies are valid for one frame only.
+//
+// note that all friction patches reserved are guaranteed to be contiguous;
+// this might turn out to be a bit inefficient if we often have a large
+// number of friction patches
+
+#include "PxcNpMemBlockPool.h"
+
+namespace physx
+{
+
+class FrictionPatchStreamPair
+{
+public:
+	FrictionPatchStreamPair(PxcNpMemBlockPool& blockPool);
+
+	// reserve can fail and return null. Read should never fail
+	template<class FrictionPatch>
+	FrictionPatch*		reserve(const PxU32 size);
+
+	template<class FrictionPatch>
+	const FrictionPatch* findInputPatches(const PxU8* ptr) const;
+	void					reset();
+
+	PxcNpMemBlockPool& getBlockPool() { return mBlockPool;}
+private:
+	PxcNpMemBlockPool&	mBlockPool;
+	PxcNpMemBlock*		mBlock;
+	PxU32				mUsed;
+
+	FrictionPatchStreamPair& operator=(const FrictionPatchStreamPair&);
+};
+
+PX_FORCE_INLINE FrictionPatchStreamPair::FrictionPatchStreamPair(PxcNpMemBlockPool& blockPool):
+  mBlockPool(blockPool), mBlock(NULL), mUsed(0)
+{
+}
+
+PX_FORCE_INLINE void FrictionPatchStreamPair::reset()
+{
+	mBlock = NULL;
+	mUsed = 0;
+}
+
+// reserve can fail and return null. Read should never fail
+template <class FrictionPatch>
+FrictionPatch* FrictionPatchStreamPair::reserve(const PxU32 size)
+{
+	if(size>PxcNpMemBlock::SIZE)
+	{
+		return reinterpret_cast<FrictionPatch*>(-1);
+	}
+
+	PX_ASSERT(size <= PxcNpMemBlock::SIZE);
+
+	FrictionPatch* ptr = NULL;
+
+	if(mBlock == NULL || mUsed + size > PxcNpMemBlock::SIZE)
+	{
+		mBlock = mBlockPool.acquireFrictionBlock();
+		mUsed = 0;
+	}
+
+	if(mBlock)
+	{
+		ptr = reinterpret_cast<FrictionPatch*>(mBlock->data+mUsed);
+		mUsed += size;
+	}
+
+	return ptr;
+}
+
+template <class FrictionPatch>
+const FrictionPatch* FrictionPatchStreamPair::findInputPatches(const PxU8* ptr) const
+{
+	return reinterpret_cast<const FrictionPatch*>(ptr);
+}
+
+}
+
+#endif