| 1 | // | 
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| 3 | // modification, are permitted provided that the following conditions | 
| 4 | // are met: | 
| 5 | //  * Redistributions of source code must retain the above copyright | 
| 6 | //    notice, this list of conditions and the following disclaimer. | 
| 7 | //  * Redistributions in binary form must reproduce the above copyright | 
| 8 | //    notice, this list of conditions and the following disclaimer in the | 
| 9 | //    documentation and/or other materials provided with the distribution. | 
| 10 | //  * Neither the name of NVIDIA CORPORATION nor the names of its | 
| 11 | //    contributors may be used to endorse or promote products derived | 
| 12 | //    from this software without specific prior written permission. | 
| 13 | // | 
| 14 | // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ''AS IS'' AND ANY | 
| 15 | // EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | 
| 16 | // IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | 
| 17 | // PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR | 
| 18 | // CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, | 
| 19 | // EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | 
| 20 | // PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR | 
| 21 | // PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY | 
| 22 | // OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | 
| 23 | // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | 
| 24 | // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | 
| 25 | // | 
| 26 | // Copyright (c) 2008-2021 NVIDIA Corporation. All rights reserved. | 
| 27 | // Copyright (c) 2004-2008 AGEIA Technologies, Inc. All rights reserved. | 
| 28 | // Copyright (c) 2001-2004 NovodeX AG. All rights reserved.   | 
| 29 | #ifndef PX_REPX_SERIALIZER_H | 
| 30 | #define PX_REPX_SERIALIZER_H | 
| 31 | /** \addtogroup Serializers | 
| 32 |   @{ | 
| 33 | */ | 
| 34 |  | 
| 35 | #include "common/PxBase.h" | 
| 36 | #include "extensions/PxRepXSimpleType.h" | 
| 37 |  | 
| 38 | #if !PX_DOXYGEN | 
| 39 | namespace physx | 
| 40 | { | 
| 41 | #endif | 
| 42 | 	 | 
| 43 | 	class XmlMemoryAllocator; | 
| 44 | 	class XmlWriter; | 
| 45 | 	class XmlReader; | 
| 46 | 	class MemoryBuffer; | 
| 47 |  | 
| 48 | 	/** | 
| 49 | 	\brief Serializer interface for RepX (Xml) serialization. | 
| 50 |  | 
| 51 | 	In order to serialize a class to RepX both a PxSerializer and | 
| 52 | 	a PxRepXSerializer implementation are needed.  | 
| 53 |  | 
| 54 | 	A repx Serializer provides the ability to capture a live | 
| 55 | 	object to a descriptor or static state and the ability to | 
| 56 | 	write that state out to a file.  Objects allocated | 
| 57 | 	by the Serializer using the allocator are freed when the | 
| 58 | 	collection itself is freed. | 
| 59 | 	SnRepXCoreSerializers.cpp implements a set of Serializers | 
| 60 | 	for the core PhysX types. | 
| 61 |  | 
| 62 | 	\note Implementing a PxRepXSerializer is currently not practical without including the internal PhysXExtension header "SnRepXSerializerImpl.h".  | 
| 63 |  | 
| 64 | 	@see PxSerializer, PX_NEW_REPX_SERIALIZER, PxSerializationRegistry::registerRepXSerializer | 
| 65 | 	*/ | 
| 66 | 	class PxRepXSerializer | 
| 67 | 	{ | 
| 68 | 	protected: | 
| 69 | 		virtual ~PxRepXSerializer(){} | 
| 70 | 	public: | 
| 71 | 		 | 
| 72 | 		/** | 
| 73 | 		\brief The type this Serializer is meant to operate on. | 
| 74 | 		@see PxRepXObject::typeName | 
| 75 | 		*/ | 
| 76 | 		virtual const char* getTypeName() = 0; | 
| 77 |  | 
| 78 | 		/** | 
| 79 | 		\brief Convert from a RepX object to a key-value pair hierarchy | 
| 80 | 		 | 
| 81 | 		\param[in] inLiveObject The object to convert to the passed in descriptor. | 
| 82 | 		\param[in] inCollection The collection to use to find ids of references of this object. | 
| 83 | 		\param[in] inWriter Interface to write data to. | 
| 84 | 		\param[in] inTempBuffer used to for temporary allocations. | 
| 85 | 		\param[in] inArgs The arguments used in create resources and objects. | 
| 86 | 		*/ | 
| 87 | 		virtual void objectToFile( const PxRepXObject& inLiveObject, PxCollection* inCollection, XmlWriter& inWriter, MemoryBuffer& inTempBuffer, PxRepXInstantiationArgs& inArgs ) = 0; | 
| 88 |  | 
| 89 | 		/** | 
| 90 | 		\brief Convert from a descriptor to a live object.  Must be an object of this Serializer type. | 
| 91 | 		 | 
| 92 | 		\param[in] inReader The inverse of the writer, a key-value pair database. | 
| 93 | 		\param[in] inAllocator An allocator to use for temporary allocations.  These will be freed after instantiation completes. | 
| 94 | 		\param[in] inArgs The arguments used in create resources and objects. | 
| 95 | 		\param[in] inCollection The collection used to find references. | 
| 96 | 		 | 
| 97 | 		\return The new live object.  It can be an invalid object if the instantiation cannot take place. | 
| 98 | 		*/ | 
| 99 | 		virtual PxRepXObject fileToObject( XmlReader& inReader, XmlMemoryAllocator& inAllocator, PxRepXInstantiationArgs& inArgs, PxCollection* inCollection ) = 0; | 
| 100 |  | 
| 101 | 	}; | 
| 102 | 	 | 
| 103 | #if !PX_DOXYGEN | 
| 104 | } // namespace physx | 
| 105 | #endif | 
| 106 |  | 
| 107 | /** | 
| 108 | \brief Inline helper template function to create PxRepXObject from TDataType type supporting PxTypeInfo<TDataType>::name. | 
| 109 | */ | 
| 110 | template<typename TDataType> | 
| 111 | PX_INLINE physx::PxRepXObject PxCreateRepXObject(const TDataType* inType, const physx::PxSerialObjectId inId) | 
| 112 | { | 
| 113 | 	return physx::PxRepXObject(physx::PxTypeInfo<TDataType>::name(), inType, inId); | 
| 114 | } | 
| 115 |  | 
| 116 | /** | 
| 117 | \brief Inline helper function to create PxRepXObject from a PxBase instance. | 
| 118 | */ | 
| 119 | PX_INLINE physx::PxRepXObject PxCreateRepXObject(const physx::PxBase* inType, const physx::PxSerialObjectId inId) | 
| 120 | { | 
| 121 | 	PX_ASSERT(inType); | 
| 122 | 	return physx::PxRepXObject(inType->getConcreteTypeName(), inType, inId); | 
| 123 | } | 
| 124 |  | 
| 125 | /** | 
| 126 | \brief Inline helper template function to create PxRepXObject form TDataType type using inType pointer as a PxSerialObjectId id. | 
| 127 | */ | 
| 128 | template<typename TDataType> | 
| 129 | PX_INLINE physx::PxRepXObject PxCreateRepXObject(const TDataType* inType) | 
| 130 | { | 
| 131 | 	return PxCreateRepXObject(inType, static_cast<physx::PxSerialObjectId>(reinterpret_cast<size_t>(inType))); | 
| 132 | } | 
| 133 |  | 
| 134 | /** | 
| 135 | \brief Preprocessor macro for RepX serializer creation. | 
| 136 | */ | 
| 137 | #define PX_NEW_REPX_SERIALIZER(T) \ | 
| 138 | 		*PX_PLACEMENT_NEW(PxGetFoundation().getAllocatorCallback().allocate(sizeof(T), "PxRepXSerializer",  __FILE__, __LINE__ ), T)(PxGetFoundation().getAllocatorCallback()) | 
| 139 |  | 
| 140 | /** | 
| 141 | \brief Preprocessor Macro to simplify RepX serializer delete. | 
| 142 | */ | 
| 143 | #define PX_DELETE_REPX_SERIALIZER(x) \ | 
| 144 | 		{ PxRepXSerializer* s = x; if (s) { PxGetFoundation().getAllocatorCallback().deallocate(s); } } | 
| 145 |  | 
| 146 |  | 
| 147 | /** @} */ | 
| 148 | #endif // PX_REPX_SERIALIZER_H | 
| 149 |  |