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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_COLLISION_TriangleMeshBUILDER
#define PX_COLLISION_TriangleMeshBUILDER
#include "GuMeshData.h"
#include "cooking/PxCooking.h"
namespace physx
{
namespace Gu
{
class EdgeListBuilder;
}
class TriangleMeshBuilder
{
public:
TriangleMeshBuilder(Gu::TriangleMeshData& mesh, const PxCookingParams& params);
virtual ~TriangleMeshBuilder();
virtual PxMeshMidPhase::Enum getMidphaseID() const = 0;
// Called by base code when midphase structure should be built
virtual void createMidPhaseStructure() = 0;
// Called by base code when midphase structure should be saved
virtual void saveMidPhaseStructure(PxOutputStream& stream, bool mismatch) const = 0;
// Called by base code when mesh index format has changed and the change should be reflected in midphase structure
virtual void onMeshIndexFormatChange() {}
bool cleanMesh(bool validate, PxTriangleMeshCookingResult::Enum* condition);
void remapTopology(const PxU32* order);
void createSharedEdgeData(bool buildAdjacencies, bool buildActiveEdges);
void recordTriangleIndices();
void createGRBMidPhaseAndData(const PxU32 originalTriangleCount);
void createGRBData();
bool loadFromDesc(const PxTriangleMeshDesc&, PxTriangleMeshCookingResult::Enum* condition, bool validate = false);
bool save(PxOutputStream& stream, bool platformMismatch, const PxCookingParams& params) const;
void checkMeshIndicesSize();
PX_FORCE_INLINE Gu::TriangleMeshData& getMeshData() { return mMeshData; }
protected:
void computeLocalBounds();
bool importMesh(const PxTriangleMeshDesc& desc, const PxCookingParams& params, PxTriangleMeshCookingResult::Enum* condition, bool validate = false);
TriangleMeshBuilder& operator=(const TriangleMeshBuilder&);
Gu::EdgeListBuilder* edgeList;
const PxCookingParams& mParams;
Gu::TriangleMeshData& mMeshData;
void releaseEdgeList();
void createEdgeList();
};
class RTreeTriangleMeshBuilder : public TriangleMeshBuilder
{
public:
RTreeTriangleMeshBuilder(const PxCookingParams& params);
virtual ~RTreeTriangleMeshBuilder();
virtual PxMeshMidPhase::Enum getMidphaseID() const { return PxMeshMidPhase::eBVH33; }
virtual void createMidPhaseStructure();
virtual void saveMidPhaseStructure(PxOutputStream& stream, bool mismatch) const;
Gu::RTreeTriangleData mData;
};
class BV4TriangleMeshBuilder : public TriangleMeshBuilder
{
public:
BV4TriangleMeshBuilder(const PxCookingParams& params);
virtual ~BV4TriangleMeshBuilder();
virtual PxMeshMidPhase::Enum getMidphaseID() const { return PxMeshMidPhase::eBVH34; }
virtual void createMidPhaseStructure();
virtual void saveMidPhaseStructure(PxOutputStream& stream, bool mismatch) const;
virtual void onMeshIndexFormatChange();
Gu::BV4TriangleData mData;
};
class BV32TriangleMeshBuilder
{
public:
static void createMidPhaseStructure(const PxCookingParams& params, Gu::TriangleMeshData& meshData, Gu::BV32Tree& bv32Tree);
static void saveMidPhaseStructure(Gu::BV32Tree* tree, PxOutputStream& stream, bool mismatch);
};
}
#endif
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