192 lines
8.6 KiB
C
192 lines
8.6 KiB
C
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions
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// are met:
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above copyright
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// notice, this list of conditions and the following disclaimer in the
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// documentation and/or other materials provided with the distribution.
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// * Neither the name of NVIDIA CORPORATION nor the names of its
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// contributors may be used to endorse or promote products derived
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// from this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ''AS IS'' AND ANY
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// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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// PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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// EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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// PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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// OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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//
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// Copyright (c) 2008-2023 NVIDIA Corporation. All rights reserved.
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// Copyright (c) 2004-2008 AGEIA Technologies, Inc. All rights reserved.
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// Copyright (c) 2001-2004 NovodeX AG. All rights reserved.
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#ifndef PX_GEOMETRY_HELPERS_H
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#define PX_GEOMETRY_HELPERS_H
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/** \addtogroup geomutils
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@{
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*/
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#include "foundation/PxPlane.h"
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#include "foundation/PxTransform.h"
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#include "foundation/PxUnionCast.h"
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#include "common/PxPhysXCommonConfig.h"
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#include "geometry/PxGeometry.h"
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#include "geometry/PxBoxGeometry.h"
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#include "geometry/PxSphereGeometry.h"
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#include "geometry/PxCapsuleGeometry.h"
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#include "geometry/PxPlaneGeometry.h"
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#include "geometry/PxConvexMeshGeometry.h"
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#include "geometry/PxHeightFieldGeometry.h"
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#include "geometry/PxParticleSystemGeometry.h"
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#include "geometry/PxHairSystemGeometry.h"
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#include "geometry/PxTetrahedronMeshGeometry.h"
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#include "geometry/PxCustomGeometry.h"
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#if !PX_DOXYGEN
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namespace physx
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{
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#endif
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/**
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\brief Geometry holder class
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This class contains enough space to hold a value of any PxGeometry subtype.
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Its principal use is as a convenience class to allow geometries to be returned polymorphically from functions.
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*/
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PX_ALIGN_PREFIX(4)
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class PxGeometryHolder
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{
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class PxInvalidGeometry : public PxGeometry
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{
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public:
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PX_INLINE PxInvalidGeometry() : PxGeometry(PxGeometryType::eINVALID) {}
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};
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public:
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PX_FORCE_INLINE PxGeometryType::Enum getType() const
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{
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return any().getType();
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}
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PX_FORCE_INLINE PxGeometry& any()
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{
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return *PxUnionCast<PxGeometry*>(&bytes.geometry);
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}
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PX_FORCE_INLINE const PxGeometry& any() const
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{
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return *PxUnionCast<const PxGeometry*>(&bytes.geometry);
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}
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//! @cond
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PX_FORCE_INLINE PxSphereGeometry& sphere() { return get<PxSphereGeometry, PxGeometryType::eSPHERE>(); }
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PX_FORCE_INLINE const PxSphereGeometry& sphere() const { return get<const PxSphereGeometry, PxGeometryType::eSPHERE>(); }
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PX_FORCE_INLINE PxPlaneGeometry& plane() { return get<PxPlaneGeometry, PxGeometryType::ePLANE>(); }
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PX_FORCE_INLINE const PxPlaneGeometry& plane() const { return get<const PxPlaneGeometry, PxGeometryType::ePLANE>(); }
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PX_FORCE_INLINE PxCapsuleGeometry& capsule() { return get<PxCapsuleGeometry, PxGeometryType::eCAPSULE>(); }
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PX_FORCE_INLINE const PxCapsuleGeometry& capsule() const { return get<const PxCapsuleGeometry, PxGeometryType::eCAPSULE>(); }
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PX_FORCE_INLINE PxBoxGeometry& box() { return get<PxBoxGeometry, PxGeometryType::eBOX>(); }
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PX_FORCE_INLINE const PxBoxGeometry& box() const { return get<const PxBoxGeometry, PxGeometryType::eBOX>(); }
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PX_FORCE_INLINE PxConvexMeshGeometry& convexMesh() { return get<PxConvexMeshGeometry, PxGeometryType::eCONVEXMESH>(); }
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PX_FORCE_INLINE const PxConvexMeshGeometry& convexMesh() const { return get<const PxConvexMeshGeometry, PxGeometryType::eCONVEXMESH>(); }
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PX_FORCE_INLINE PxTetrahedronMeshGeometry& tetMesh() { return get<PxTetrahedronMeshGeometry, PxGeometryType::eTETRAHEDRONMESH>(); }
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PX_FORCE_INLINE const PxTetrahedronMeshGeometry& tetMesh() const { return get<const PxTetrahedronMeshGeometry, PxGeometryType::eTETRAHEDRONMESH>(); }
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PX_FORCE_INLINE PxTriangleMeshGeometry& triangleMesh() { return get<PxTriangleMeshGeometry, PxGeometryType::eTRIANGLEMESH>(); }
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PX_FORCE_INLINE const PxTriangleMeshGeometry& triangleMesh() const { return get<const PxTriangleMeshGeometry, PxGeometryType::eTRIANGLEMESH>(); }
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PX_FORCE_INLINE PxHeightFieldGeometry& heightField() { return get<PxHeightFieldGeometry, PxGeometryType::eHEIGHTFIELD>(); }
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PX_FORCE_INLINE const PxHeightFieldGeometry& heightField() const { return get<const PxHeightFieldGeometry, PxGeometryType::eHEIGHTFIELD>(); }
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PX_FORCE_INLINE PxParticleSystemGeometry& particleSystem() { return get<PxParticleSystemGeometry, PxGeometryType::ePARTICLESYSTEM>(); }
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PX_FORCE_INLINE const PxParticleSystemGeometry& particleSystem() const { return get<const PxParticleSystemGeometry, PxGeometryType::ePARTICLESYSTEM>(); }
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PX_FORCE_INLINE PxHairSystemGeometry& hairSystem() { return get<PxHairSystemGeometry, PxGeometryType::eHAIRSYSTEM>(); }
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PX_FORCE_INLINE const PxHairSystemGeometry& hairSystem() const { return get<const PxHairSystemGeometry, PxGeometryType::eHAIRSYSTEM>(); }
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PX_FORCE_INLINE PxCustomGeometry& custom() { return get<PxCustomGeometry, PxGeometryType::eCUSTOM>(); }
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PX_FORCE_INLINE const PxCustomGeometry& custom() const { return get<const PxCustomGeometry, PxGeometryType::eCUSTOM>(); }
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//! @endcond
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PX_FORCE_INLINE void storeAny(const PxGeometry& geometry)
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{
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PX_ASSERT_WITH_MESSAGE( (geometry.getType() >= PxGeometryType::eSPHERE) &&
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(geometry.getType() < PxGeometryType::eGEOMETRY_COUNT),
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"Unexpected GeometryType in PxGeometryHolder::storeAny");
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switch(geometry.getType())
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{
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case PxGeometryType::eSPHERE: put<PxSphereGeometry>(geometry); break;
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case PxGeometryType::ePLANE: put<PxPlaneGeometry>(geometry); break;
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case PxGeometryType::eCAPSULE: put<PxCapsuleGeometry>(geometry); break;
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case PxGeometryType::eBOX: put<PxBoxGeometry>(geometry); break;
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case PxGeometryType::eCONVEXMESH: put<PxConvexMeshGeometry>(geometry); break;
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case PxGeometryType::eTRIANGLEMESH: put<PxTriangleMeshGeometry>(geometry); break;
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case PxGeometryType::eTETRAHEDRONMESH: put<PxTetrahedronMeshGeometry>(geometry); break;
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case PxGeometryType::eHEIGHTFIELD: put<PxHeightFieldGeometry>(geometry); break;
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case PxGeometryType::ePARTICLESYSTEM: put<PxParticleSystemGeometry>(geometry); break;
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case PxGeometryType::eHAIRSYSTEM: put<PxHairSystemGeometry>(geometry); break;
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case PxGeometryType::eCUSTOM: put<PxCustomGeometry>(geometry); break;
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case PxGeometryType::eGEOMETRY_COUNT:
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case PxGeometryType::eINVALID: break;
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}
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}
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PX_FORCE_INLINE PxGeometryHolder() { put<PxInvalidGeometry>(PxInvalidGeometry()); }
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PX_FORCE_INLINE PxGeometryHolder(const PxGeometry& geometry){ storeAny(geometry); }
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private:
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template<typename T> void put(const PxGeometry& geometry)
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{
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static_cast<T&>(any()) = static_cast<const T&>(geometry);
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}
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template<typename T, PxGeometryType::Enum type> T& get()
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{
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PX_ASSERT(getType() == type);
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return static_cast<T&>(any());
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}
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template<typename T, PxGeometryType::Enum type> T& get() const
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{
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PX_ASSERT(getType() == type);
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return static_cast<T&>(any());
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}
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union {
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PxU8 geometry[sizeof(PxGeometry)];
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PxU8 box[sizeof(PxBoxGeometry)];
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PxU8 sphere[sizeof(PxSphereGeometry)];
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PxU8 capsule[sizeof(PxCapsuleGeometry)];
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PxU8 plane[sizeof(PxPlaneGeometry)];
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PxU8 convex[sizeof(PxConvexMeshGeometry)];
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PxU8 tetMesh[sizeof(PxTetrahedronMeshGeometry)];
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PxU8 mesh[sizeof(PxTriangleMeshGeometry)];
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PxU8 heightfield[sizeof(PxHeightFieldGeometry)];
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PxU8 particleSystem[sizeof(PxParticleSystemGeometry)];
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PxU8 hairSystem[sizeof(PxHairSystemGeometry)];
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PxU8 custom[sizeof(PxCustomGeometry)];
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} bytes;
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}
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PX_ALIGN_SUFFIX(4);
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#if !PX_DOXYGEN
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} // namespace physx
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#endif
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/** @} */
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#endif
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