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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 GU_EDGE_LIST_DATA_H
#define GU_EDGE_LIST_DATA_H
#include "foundation/PxSimpleTypes.h"
#include "CmPhysXCommon.h"
namespace physx
{
namespace Gu
{
/*!
NOTICE!
This is a data-code separated version of PxPhysics::EdgeList.
It is to be shared between high and low level code, so make sure both are recompiled
if any change is done here.
*/
// Flags
enum EdgeType
{
PX_EDGE_UNDEFINED,
PX_EDGE_BOUNDARY, //!< Edge belongs to a single triangle
PX_EDGE_INTERNAL, //!< Edge belongs to exactly two triangles
PX_EDGE_SINGULAR, //!< Edge belongs to three or more triangles
PX_EDGE_FORCE_DWORD = 0x7fffffff
};
enum EdgeFlag
{
PX_EDGE_ACTIVE = (1<<0)
};
// Data
//! Basic edge-data
struct EdgeData
{
PxU32 Ref0; //!< First vertex reference
PxU32 Ref1; //!< Second vertex reference
};
PX_COMPILE_TIME_ASSERT(sizeof(Gu::EdgeData) == 8);
//! Basic edge-data using 8-bit references
struct Edge8Data
{
PxU8 Ref0; //!< First vertex reference
PxU8 Ref1; //!< Second vertex reference
};
PX_COMPILE_TIME_ASSERT(sizeof(Gu::Edge8Data) == 2);
//! A count/offset pair = an edge descriptor
struct EdgeDescData
{
PxU16 Flags;
PxU16 Count;
PxU32 Offset;
};
PX_COMPILE_TIME_ASSERT(sizeof(Gu::EdgeDescData) == 8);
//! Edge<->triangle mapping
struct EdgeTriangleData
{
PxU32 mLink[3];
};
PX_COMPILE_TIME_ASSERT(sizeof(Gu::EdgeTriangleData) == 12);
struct EdgeListData
{
// The edge list
PxU32 mNbEdges; //!< Number of edges in the list
Gu::EdgeData* mEdges; //!< List of edges
// Faces to edges
PxU32 mNbFaces; //!< Number of faces for which we have data
Gu::EdgeTriangleData* mEdgeFaces; //!< Array of edge-triangles referencing mEdges
// Edges to faces
Gu::EdgeDescData* mEdgeToTriangles; //!< An EdgeDesc structure for each edge
PxU32* mFacesByEdges; //!< A pool of face indices
};
#if PX_P64_FAMILY
PX_COMPILE_TIME_ASSERT(sizeof(Gu::EdgeListData) == 48);
#else
PX_COMPILE_TIME_ASSERT(sizeof(Gu::EdgeListData) == 24);
#endif
// Accessors
enum
{
MSH_EDGE_LINK_MASK = 0x0fffffff,
MSH_ACTIVE_EDGE_MASK = 0x80000000,
MSH_ACTIVE_VERTEX_MASK = 0x40000000
};
class EdgeTriangleAC
{
public:
PX_INLINE static PxU32 GetEdge01(const Gu::EdgeTriangleData& data) { return data.mLink[0] & MSH_EDGE_LINK_MASK; }
PX_INLINE static PxU32 GetEdge12(const Gu::EdgeTriangleData& data) { return data.mLink[1] & MSH_EDGE_LINK_MASK; }
PX_INLINE static PxU32 GetEdge20(const Gu::EdgeTriangleData& data) { return data.mLink[2] & MSH_EDGE_LINK_MASK; }
PX_INLINE static PxU32 GetEdge(const Gu::EdgeTriangleData& data, PxU32 i) { return data.mLink[i] & MSH_EDGE_LINK_MASK; }
PX_INLINE static Ps::IntBool HasActiveEdge01(const Gu::EdgeTriangleData& data) { return Ps::IntBool(data.mLink[0] & MSH_ACTIVE_EDGE_MASK); }
PX_INLINE static Ps::IntBool HasActiveEdge12(const Gu::EdgeTriangleData& data) { return Ps::IntBool(data.mLink[1] & MSH_ACTIVE_EDGE_MASK); }
PX_INLINE static Ps::IntBool HasActiveEdge20(const Gu::EdgeTriangleData& data) { return Ps::IntBool(data.mLink[2] & MSH_ACTIVE_EDGE_MASK); }
PX_INLINE static Ps::IntBool HasActiveEdge(const Gu::EdgeTriangleData& data, PxU32 i) { return Ps::IntBool(data.mLink[i] & MSH_ACTIVE_EDGE_MASK); }
};
} // namespace Gu
}
#endif
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