295 lines
14 KiB
C++
295 lines
14 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) 2008-2023 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_SERIALIZATION_H
|
|
#define PX_SERIALIZATION_H
|
|
/** \addtogroup extensions
|
|
@{
|
|
*/
|
|
|
|
#include "PxPhysXConfig.h"
|
|
#include "common/PxBase.h"
|
|
#include "cooking/PxCooking.h"
|
|
#include "foundation/PxIO.h"
|
|
#include "common/PxTolerancesScale.h"
|
|
#include "common/PxTypeInfo.h"
|
|
#include "common/PxStringTable.h"
|
|
|
|
/**
|
|
PX_BINARY_SERIAL_VERSION is used to version the PhysX binary data and meta data. The global unique identifier of the PhysX SDK needs to match
|
|
the one in the data and meta data, otherwise they are considered incompatible. A 32 character wide GUID can be generated with https://www.guidgenerator.com/ for example.
|
|
*/
|
|
#define PX_BINARY_SERIAL_VERSION "0E16D844227B469DB23DA9C42CB4E624"
|
|
|
|
|
|
#if !PX_DOXYGEN
|
|
namespace physx
|
|
{
|
|
#endif
|
|
|
|
class PxBinaryConverter;
|
|
|
|
/**
|
|
\brief Utility functions for serialization
|
|
|
|
@see PxCollection, PxSerializationRegistry
|
|
*/
|
|
class PxSerialization
|
|
{
|
|
public:
|
|
/**
|
|
\brief Additional PxScene and PxPhysics options stored in XML serialized data.
|
|
|
|
The PxXmlMiscParameter parameter can be serialized and deserialized along with PxCollection instances (XML only).
|
|
This is for application use only and has no impact on how objects are serialized or deserialized.
|
|
@see PxSerialization::createCollectionFromXml, PxSerialization::serializeCollectionToXml
|
|
*/
|
|
struct PxXmlMiscParameter
|
|
{
|
|
/**
|
|
\brief Up vector for the scene reference coordinate system.
|
|
*/
|
|
PxVec3 upVector;
|
|
|
|
/**
|
|
\brief Tolerances scale to be used for the scene.
|
|
*/
|
|
PxTolerancesScale scale;
|
|
|
|
PxXmlMiscParameter() : upVector(0) {}
|
|
PxXmlMiscParameter(PxVec3& inUpVector, PxTolerancesScale inScale) : upVector(inUpVector), scale(inScale) {}
|
|
};
|
|
|
|
/**
|
|
\brief Returns whether the collection is serializable with the externalReferences collection.
|
|
|
|
Some definitions to explain whether a collection can be serialized or not:
|
|
|
|
For definitions of <b>requires</b> and <b>complete</b> see #PxSerialization::complete
|
|
|
|
A serializable object is <b>subordinate</b> if it cannot be serialized on its own
|
|
The following objects are subordinate:
|
|
- articulation links
|
|
- articulation joints
|
|
- joints
|
|
|
|
A collection C can be serialized with external references collection D iff
|
|
- C is complete relative to D (no dangling references)
|
|
- Every object in D required by an object in C has a valid ID (no unnamed references)
|
|
- Every subordinate object in C is required by another object in C (no orphans)
|
|
|
|
\param[in] collection Collection to be checked
|
|
\param[in] sr PxSerializationRegistry instance with information about registered classes.
|
|
\param[in] externalReferences the external References collection
|
|
\return Whether the collection is serializable
|
|
@see PxSerialization::complete, PxSerialization::serializeCollectionToBinary, PxSerialization::serializeCollectionToXml, PxSerializationRegistry
|
|
*/
|
|
static bool isSerializable(PxCollection& collection, PxSerializationRegistry& sr, const PxCollection* externalReferences = NULL);
|
|
|
|
/**
|
|
\brief Adds to a collection all objects such that it can be successfully serialized.
|
|
|
|
A collection C is complete relative to an other collection D if every object required by C is either in C or D.
|
|
This function adds objects to a collection, such that it becomes complete with respect to the exceptFor collection.
|
|
Completeness is needed for serialization. See #PxSerialization::serializeCollectionToBinary,
|
|
#PxSerialization::serializeCollectionToXml.
|
|
|
|
Sdk objects require other sdk object according to the following rules:
|
|
- joints require their actors and constraint
|
|
- rigid actors require their shapes
|
|
- shapes require their material(s) and mesh (triangle mesh, convex mesh or height field), if any
|
|
- articulations require their links and joints
|
|
- aggregates require their actors
|
|
|
|
If followJoints is specified another rule is added:
|
|
- actors require their joints
|
|
|
|
Specifying followJoints will make whole jointed actor chains being added to the collection. Following chains
|
|
is interrupted whenever a object in exceptFor is encountered.
|
|
|
|
\param[in,out] collection Collection which is completed
|
|
\param[in] sr PxSerializationRegistry instance with information about registered classes.
|
|
\param[in] exceptFor Optional exemption collection
|
|
\param[in] followJoints Specifies whether joints should be added for jointed actors
|
|
@see PxCollection, PxSerialization::serializeCollectionToBinary, PxSerialization::serializeCollectionToXml, PxSerializationRegistry
|
|
*/
|
|
static void complete(PxCollection& collection, PxSerializationRegistry& sr, const PxCollection* exceptFor = NULL, bool followJoints = false);
|
|
|
|
/**
|
|
\brief Creates PxSerialObjectId values for unnamed objects in a collection.
|
|
|
|
Creates PxSerialObjectId names for unnamed objects in a collection starting at a base value and incrementing,
|
|
skipping values that are already assigned to objects in the collection.
|
|
|
|
\param[in,out] collection Collection for which names are created
|
|
\param[in] base Start address for PxSerialObjectId names
|
|
@see PxCollection
|
|
*/
|
|
static void createSerialObjectIds(PxCollection& collection, const PxSerialObjectId base);
|
|
|
|
/**
|
|
\brief Creates a PxCollection from XML data.
|
|
|
|
\param inputData The input data containing the XML collection.
|
|
\param cooking PxCooking instance used for sdk object instantiation.
|
|
\param sr PxSerializationRegistry instance with information about registered classes.
|
|
\param externalRefs PxCollection used to resolve external references.
|
|
\param stringTable PxStringTable instance used for storing object names.
|
|
\param outArgs Optional parameters of physics and scene deserialized from XML. See #PxSerialization::PxXmlMiscParameter
|
|
\return a pointer to a PxCollection if successful or NULL if it failed.
|
|
|
|
@see PxCollection, PxSerializationRegistry, PxInputData, PxStringTable, PxCooking, PxSerialization::PxXmlMiscParameter
|
|
*/
|
|
static PxCollection* createCollectionFromXml(PxInputData& inputData, PxCooking& cooking, PxSerializationRegistry& sr, const PxCollection* externalRefs = NULL, PxStringTable* stringTable = NULL, PxXmlMiscParameter* outArgs = NULL);
|
|
|
|
/**
|
|
\brief Deserializes a PxCollection from memory.
|
|
|
|
Creates a collection from memory. If the collection has external dependencies another collection
|
|
can be provided to resolve these.
|
|
|
|
The memory block provided has to be 128 bytes aligned and contain a contiguous serialized collection as written
|
|
by PxSerialization::serializeCollectionToBinary. The contained binary data needs to be compatible with the current binary format version
|
|
which is defined by "PX_PHYSICS_VERSION_MAJOR.PX_PHYSICS_VERSION_MINOR.PX_PHYSICS_VERSION_BUGFIX-PX_BINARY_SERIAL_VERSION".
|
|
For a list of compatible sdk releases refer to the documentation of PX_BINARY_SERIAL_VERSION.
|
|
|
|
\param[in] memBlock Pointer to memory block containing the serialized collection
|
|
\param[in] sr PxSerializationRegistry instance with information about registered classes.
|
|
\param[in] externalRefs Collection to resolve external dependencies
|
|
|
|
@see PxCollection, PxSerialization::complete, PxSerialization::serializeCollectionToBinary, PxSerializationRegistry, PX_BINARY_SERIAL_VERSION
|
|
*/
|
|
static PxCollection* createCollectionFromBinary(void* memBlock, PxSerializationRegistry& sr, const PxCollection* externalRefs = NULL);
|
|
|
|
/**
|
|
\brief Serializes a physics collection to an XML output stream.
|
|
|
|
The collection to be serialized needs to be complete @see PxSerialization.complete.
|
|
Optionally the XML may contain meshes in binary cooked format for fast loading. It does this when providing a valid non-null PxCooking pointer.
|
|
|
|
\note Serialization of objects in a scene that is simultaneously being simulated is not supported and leads to undefined behavior.
|
|
|
|
\param outputStream Stream to save collection to.
|
|
\param collection PxCollection instance which is serialized. The collection needs to be complete with respect to the externalRefs collection.
|
|
\param sr PxSerializationRegistry instance with information about registered classes.
|
|
\param cooking Optional pointer to cooking instance. If provided, cooked mesh data is cached for fast loading.
|
|
\param externalRefs Collection containing external references.
|
|
\param inArgs Optional parameters of physics and scene serialized to XML along with the collection. See #PxSerialization::PxXmlMiscParameter
|
|
\return true if the collection is successfully serialized.
|
|
|
|
@see PxCollection, PxOutputStream, PxSerializationRegistry, PxCooking, PxSerialization::PxXmlMiscParameter
|
|
*/
|
|
static bool serializeCollectionToXml(PxOutputStream& outputStream, PxCollection& collection, PxSerializationRegistry& sr, PxCooking* cooking = NULL, const PxCollection* externalRefs = NULL, PxXmlMiscParameter* inArgs = NULL);
|
|
|
|
/**
|
|
\brief Serializes a collection to a binary stream.
|
|
|
|
Serializes a collection to a stream. In order to resolve external dependencies the externalReferences collection has to be provided.
|
|
Optionally names of objects that where set for example with #PxActor::setName are serialized along with the objects.
|
|
|
|
The collection can be successfully serialized if isSerializable(collection) returns true. See #isSerializable.
|
|
|
|
The implementation of the output stream needs to fulfill the requirements on the memory block input taken by
|
|
PxSerialization::createCollectionFromBinary.
|
|
|
|
\note Serialization of objects in a scene that is simultaneously being simulated is not supported and leads to undefined behavior.
|
|
|
|
\param[out] outputStream into which the collection is serialized
|
|
\param[in] collection Collection to be serialized
|
|
\param[in] sr PxSerializationRegistry instance with information about registered classes.
|
|
\param[in] externalRefs Collection used to resolve external dependencies
|
|
\param[in] exportNames Specifies whether object names are serialized
|
|
\return Whether serialization was successful
|
|
|
|
@see PxCollection, PxOutputStream, PxSerialization::complete, PxSerialization::createCollectionFromBinary, PxSerializationRegistry
|
|
*/
|
|
static bool serializeCollectionToBinary(PxOutputStream& outputStream, PxCollection& collection, PxSerializationRegistry& sr, const PxCollection* externalRefs = NULL, bool exportNames = false );
|
|
|
|
/**
|
|
\brief Serializes a collection to a binary stream.
|
|
|
|
\deprecated Deterministic binary serialization is deprecated. PxSerialization::serializeCollectionToBinary might become deterministic in the future.
|
|
|
|
Convenience function that serializes a collection to a stream while rebasing memory addresses and handles
|
|
to achieve a deterministic output, independent of the PhysX runtime environment the objects have been created in.
|
|
|
|
The same functionality can be achieved by manually
|
|
- creating a binary data stream with PxSerialization::serializeCollectionToBinary
|
|
- producing the binary meta data of the current runtime platform with PxSerialization::dumpBinaryMetaData
|
|
- converting the binary data stream with the PxBinaryConverter, using the binary meta for both source and destination
|
|
|
|
@see PxSerialization::serializeCollectionToBinary, PxSerialization::dumpBinaryMetaData, PxBinaryConverter
|
|
*/
|
|
PX_DEPRECATED static bool serializeCollectionToBinaryDeterministic(PxOutputStream& outputStream, PxCollection& collection, PxSerializationRegistry& sr, const PxCollection* externalRefs = NULL, bool exportNames = false);
|
|
|
|
/**
|
|
\brief Dumps the binary meta-data to a stream.
|
|
|
|
\deprecated Binary conversion and binary meta data are deprecated.
|
|
|
|
A meta-data file contains information about the SDK's internal classes and about custom user types ready
|
|
for serialization. Such a file is needed to convert binary-serialized data from one platform to another (re-targeting).
|
|
The converter needs meta-data files for the source and target platforms to perform conversions.
|
|
|
|
Custom user types can be supported with PxSerializationRegistry::registerBinaryMetaDataCallback (see the guide for more information).
|
|
|
|
\param[out] outputStream Stream to write meta data to
|
|
\param[in] sr PxSerializationRegistry instance with information about registered classes used for conversion.
|
|
|
|
@see PxOutputStream, PxSerializationRegistry
|
|
*/
|
|
PX_DEPRECATED static void dumpBinaryMetaData(PxOutputStream& outputStream, PxSerializationRegistry& sr);
|
|
|
|
/**
|
|
\brief Creates binary converter for re-targeting binary-serialized data.
|
|
|
|
\deprecated Binary conversion and binary meta data are deprecated.
|
|
|
|
\return Binary converter instance.
|
|
*/
|
|
PX_DEPRECATED static PxBinaryConverter* createBinaryConverter();
|
|
|
|
/**
|
|
\brief Creates an application managed registry for serialization.
|
|
|
|
\param[in] physics Physics SDK to generate create serialization registry
|
|
|
|
\return PxSerializationRegistry instance.
|
|
|
|
@see PxSerializationRegistry
|
|
*/
|
|
static PxSerializationRegistry* createSerializationRegistry(PxPhysics& physics);
|
|
};
|
|
|
|
#if !PX_DOXYGEN
|
|
} // namespace physx
|
|
#endif
|
|
|
|
/** @} */
|
|
#endif
|