| 1 | // |
| 2 | // Redistribution and use in source and binary forms, with or without |
| 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 | |