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//
// 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) 2008-2018 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_PHYSICS_SN_SERIALIZATION_CONTEXT
#define PX_PHYSICS_SN_SERIALIZATION_CONTEXT
#include "foundation/PxAssert.h"
#include "foundation/PxMemory.h"
#include "CmPhysXCommon.h"
#include "PsHash.h"
#include "PsUserAllocated.h"
#include "PxSerialFramework.h"
#include "CmCollection.h"
#include "CmUtils.h"
#include "PxDefaultStreams.h"
#include "PsFoundation.h"
#include "SnConvX_Align.h"
namespace physx
{
namespace Sn
{
struct ManifestEntry
{
//= ATTENTION! =====================================================================================
// Changing the data layout of this class breaks the binary serialization format. See comments for
// PX_BINARY_SERIAL_VERSION. If a modification is required, please adjust the getBinaryMetaData
// function. If the modification is made on a custom branch, please change PX_BINARY_SERIAL_VERSION
// accordingly.
//==================================================================================================
PX_FORCE_INLINE ManifestEntry(PxU32 _offset, PxType _type)
{
Cm::markSerializedMem(this, sizeof(ManifestEntry));
offset = _offset;
type = _type;
}
PX_FORCE_INLINE ManifestEntry() { Cm::markSerializedMem(this, sizeof(ManifestEntry)); }
PX_FORCE_INLINE void operator =(const ManifestEntry& m)
{
PxMemCopy(this, &m, sizeof(ManifestEntry));
}
PxU32 offset;
PxType type;
};
struct ImportReference
{
//= ATTENTION! =====================================================================================
// Changing the data layout of this class breaks the binary serialization format. See comments for
// PX_BINARY_SERIAL_VERSION. If a modification is required, please adjust the getBinaryMetaData
// function. If the modification is made on a custom branch, please change PX_BINARY_SERIAL_VERSION
// accordingly.
//==================================================================================================
PX_FORCE_INLINE ImportReference(PxSerialObjectId _id, PxType _type)
{
Cm::markSerializedMem(this, sizeof(ImportReference));
id = _id;
type = _type;
}
PX_FORCE_INLINE ImportReference() { Cm::markSerializedMem(this, sizeof(ImportReference)); }
PX_FORCE_INLINE void operator =(const ImportReference& m)
{
PxMemCopy(this, &m, sizeof(ImportReference));
}
PxSerialObjectId id;
PxType type;
};
#define SERIAL_OBJECT_INDEX_TYPE_BIT (1u<<31)
struct SerialObjectIndex
{
//= ATTENTION! =====================================================================================
// Changing the data layout of this class breaks the binary serialization format. See comments for
// PX_BINARY_SERIAL_VERSION. If a modification is required, please adjust the getBinaryMetaData
// function. If the modification is made on a custom branch, please change PX_BINARY_SERIAL_VERSION
// accordingly.
//==================================================================================================
PX_FORCE_INLINE SerialObjectIndex(PxU32 index, bool external) { setIndex(index, external); }
PX_FORCE_INLINE SerialObjectIndex(const SerialObjectIndex& objIndex) : mObjIndex(objIndex.mObjIndex) {}
PX_FORCE_INLINE SerialObjectIndex() : mObjIndex(PX_INVALID_U32) {}
PX_FORCE_INLINE void setIndex(PxU32 index, bool external)
{
PX_ASSERT((index & SERIAL_OBJECT_INDEX_TYPE_BIT) == 0);
mObjIndex = index | (external ? SERIAL_OBJECT_INDEX_TYPE_BIT : 0);
}
PX_FORCE_INLINE PxU32 getIndex(bool& isExternal)
{
PX_ASSERT(mObjIndex != PX_INVALID_U32);
isExternal = (mObjIndex & SERIAL_OBJECT_INDEX_TYPE_BIT) > 0;
return mObjIndex & ~SERIAL_OBJECT_INDEX_TYPE_BIT;
}
private:
PxU32 mObjIndex;
};
struct ExportReference
{
//= ATTENTION! =====================================================================================
// Changing the data layout of this class breaks the binary serialization format. See comments for
// PX_BINARY_SERIAL_VERSION. If a modification is required, please adjust the getBinaryMetaData
// function. If the modification is made on a custom branch, please change PX_BINARY_SERIAL_VERSION
// accordingly.
//==================================================================================================
PX_FORCE_INLINE ExportReference(PxSerialObjectId _id, SerialObjectIndex _objIndex)
{
Cm::markSerializedMem(this, sizeof(ExportReference));
id = _id;
objIndex = _objIndex;
}
PX_FORCE_INLINE ExportReference() { Cm::markSerializedMem(this, sizeof(ExportReference)); }
PX_FORCE_INLINE void operator =(const ExportReference& m)
{
PxMemCopy(this, &m, sizeof(ExportReference));
}
PxSerialObjectId id;
SerialObjectIndex objIndex;
};
template<class ReferenceType>
struct InternalReference
{
//= ATTENTION! =====================================================================================
// Changing the data layout of this class breaks the binary serialization format. See comments for
// PX_BINARY_SERIAL_VERSION. If a modification is required, please adjust the getBinaryMetaData
// function. If the modification is made on a custom branch, please change PX_BINARY_SERIAL_VERSION
// accordingly.
//==================================================================================================
PX_FORCE_INLINE InternalReference(ReferenceType _reference, PxU32 _kind, SerialObjectIndex _objIndex)
{
Cm::markSerializedMem(this, sizeof(InternalReference));
reference = _reference;
kind = _kind;
objIndex = _objIndex;
}
PX_FORCE_INLINE InternalReference() { Cm::markSerializedMem(this, sizeof(InternalReference)); }
PX_FORCE_INLINE void operator =(const InternalReference& m)
{
PxMemCopy(this, &m, sizeof(InternalReference));
}
ReferenceType reference;
PxU32 kind;
SerialObjectIndex objIndex;
};
typedef InternalReference<size_t> InternalReferencePtr;
typedef InternalReference<PxU32> InternalReferenceIdx;
typedef shdfnd::Pair<size_t, PxU32> InternalRefKey;
typedef Cm::CollectionHashMap<InternalRefKey, SerialObjectIndex> InternalRefMap;
class DeserializationContext : public PxDeserializationContext, public Ps::UserAllocated
{
PX_NOCOPY(DeserializationContext)
public:
DeserializationContext(const ManifestEntry* manifestTable,
const ImportReference* importReferences,
PxU8* objectDataAddress,
const InternalRefMap& internalReferencesMap,
const Cm::Collection* externalRefs,
PxU8* extraData,
PxU32 physxVersion)
: mManifestTable(manifestTable)
, mImportReferences(importReferences)
, mObjectDataAddress(objectDataAddress)
, mInternalReferencesMap(internalReferencesMap)
, mExternalRefs(externalRefs)
, mPhysXVersion(physxVersion)
{
mExtraDataAddress = extraData;
}
virtual PxBase* resolveReference(PxU32 kind, size_t reference) const;
PxU32 getPhysXVersion() const { return mPhysXVersion; }
private:
//various pointers to deserialized data
const ManifestEntry* mManifestTable;
const ImportReference* mImportReferences;
PxU8* mObjectDataAddress;
//internal references map for resolving references.
const InternalRefMap& mInternalReferencesMap;
//external collection for resolving import references.
const Cm::Collection* mExternalRefs;
const PxU32 mPhysXVersion;
};
class SerializationContext : public PxSerializationContext, public Ps::UserAllocated
{
PX_NOCOPY(SerializationContext)
public:
SerializationContext(const Cm::Collection& collection, const Cm::Collection* externalRefs)
: mCollection(collection)
, mExternalRefs(externalRefs)
{
// fill object to collection index map (same ordering as manifest)
for (PxU32 i=0;i<mCollection.internalGetNbObjects();i++)
{
mObjToCollectionIndexMap[mCollection.internalGetObject(i)] = i;
}
}
virtual void writeData(const void* buffer, PxU32 size) { mMemStream.write(buffer, size); }
virtual PxU32 getTotalStoredSize() { return mMemStream.getSize(); }
virtual void alignData(PxU32 alignment = PX_SERIAL_ALIGN)
{
if(!alignment)
return;
PxI32 bytesToPad = PxI32(getPadding(mMemStream.getSize(), alignment));
static const PxI32 BUFSIZE = 64;
char buf[BUFSIZE];
PxMemSet(buf, 0, bytesToPad < BUFSIZE ? PxU32(bytesToPad) : PxU32(BUFSIZE));
while(bytesToPad > 0)
{
mMemStream.write(buf, bytesToPad < BUFSIZE ? PxU32(bytesToPad) : PxU32(BUFSIZE));
bytesToPad -= BUFSIZE;
}
PX_ASSERT(!getPadding(getTotalStoredSize(), alignment));
}
virtual void writeName(const char*)
{
Ps::getFoundation().error(physx::PxErrorCode::eINVALID_OPERATION, __FILE__, __LINE__,
"Cannot export names during exportData.");
}
const PxCollection& getCollection() const { return mCollection; }
virtual void registerReference(PxBase& serializable, PxU32 kind, size_t reference);
const Ps::Array<ImportReference>& getImportReferences() { return mImportReferences; }
InternalRefMap& getInternalReferencesPtrMap() { return mInternalReferencesPtrMap; }
InternalRefMap& getInternalReferencesIdxMap() { return mInternalReferencesIdxMap; }
PxU32 getSize() const { return mMemStream.getSize(); }
PxU8* getData() const { return mMemStream.getData(); }
private:
//import reference map for unique registration of import references and corresponding buffer.
Ps::HashMap<PxSerialObjectId, PxU32> mImportReferencesMap;
Ps::Array<ImportReference> mImportReferences;
//maps for unique registration of internal references
InternalRefMap mInternalReferencesPtrMap;
InternalRefMap mInternalReferencesIdxMap;
//map for quick lookup of manifest index.
Ps::HashMap<const PxBase*, PxU32> mObjToCollectionIndexMap;
//collection and externalRefs collection for assigning references.
const Cm::Collection& mCollection;
const Cm::Collection* mExternalRefs;
PxDefaultMemoryOutputStream mMemStream;
};
} // namespace Sn
}
#endif
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