NvBlastExtAuthoringCutoutImpl.h

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#ifndef NVBLASTAUTHORINGFCUTOUTIMPL_H
#define NVBLASTAUTHORINGFCUTOUTIMPL_H

#include "NvBlastExtAuthoringCutout.h"
#include <vector>
#include <PxVec2.h>
#include <PxVec3.h>
#include <PxMat44.h>

namespace Nv
{
namespace Blast
{

struct PolyVert
{
    uint16_t index;
    uint16_t flags;
};

struct ConvexLoop
{
    std::vector<PolyVert> polyVerts;
};

struct Cutout
{
    std::vector<physx::PxVec3> vertices;
    //std::vector<ConvexLoop> convexLoops;
    std::vector<physx::PxVec3> smoothingGroups;
};

struct POINT2D
{
    POINT2D() {}
    POINT2D(int32_t _x, int32_t _y) : x(_x), y(_y) {}

    int32_t x;
    int32_t y;

    bool operator==(const POINT2D& other) const
    {
        return x == other.x && y == other.y;
    }
    bool operator<(const POINT2D& other) const
    {
        if (x == other.x) return y < other.y;
        return x < other.x;
    }
};

struct CutoutSetImpl : public CutoutSet
{
    CutoutSetImpl() : periodic(false), dimensions(0.0f)
    {
    }

    uint32_t            getCutoutCount() const
    {
        return (uint32_t)cutouts.size() - 1;
    }

    uint32_t            getCutoutVertexCount(uint32_t cutoutIndex, uint32_t loopIndex) const
    {
        return (uint32_t)cutoutLoops[cutouts[cutoutIndex] + loopIndex].vertices.size();
    }
    uint32_t            getCutoutLoopCount(uint32_t cutoutIndex) const
    {
        return (uint32_t)cutouts[cutoutIndex + 1] - cutouts[cutoutIndex];
    }

    const NvcVec3& getCutoutVertex(uint32_t cutoutIndex, uint32_t loopIndex, uint32_t vertexIndex) const;

    bool                isCutoutVertexToggleSmoothingGroup(uint32_t cutoutIndex, uint32_t loopIndex, uint32_t vertexIndex) const
    {
        auto& vRef = cutoutLoops[cutouts[cutoutIndex] + loopIndex].vertices[vertexIndex];
        for (auto& v : cutoutLoops[cutouts[cutoutIndex] + loopIndex].smoothingGroups)
        {
            if ((vRef - v).magnitudeSquared() < 1e-5)
            {
                return true;
            }
        }
        return false;
    }

    bool                    isPeriodic() const
    {
        return periodic;
    }
    const NvcVec2& getDimensions() const;

    //void                  serialize(physx::PxFileBuf& stream) const;
    //void                  deserialize(physx::PxFileBuf& stream);

    void                    release()
    {
        delete this;
    }

    std::vector<Cutout>     cutoutLoops;
    std::vector<uint32_t>   cutouts;
    bool                    periodic;
    physx::PxVec2           dimensions;
};

void createCutoutSet(Nv::Blast::CutoutSetImpl& cutoutSet, const uint8_t* pixelBuffer, uint32_t bufferWidth, uint32_t bufferHeight,
    float segmentationErrorThreshold, float snapThreshold, bool periodic, bool expandGaps);


} // namespace Blast
} // namespace Nv

#endif // ifndef NVBLASTAUTHORINGFCUTOUTIMPL_H