generativeProceduralFilteringSceneIndex.h

//
// Copyright 2024 Pixar
//
// Licensed under the Apache License, Version 2.0 (the "Apache License")
// with the following modification; you may not use this file except in
// compliance with the Apache License and the following modification to it:
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//    the License and to reproduce the content of the NOTICE file.
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//     http://www.apache.org/licenses/LICENSE-2.0
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#ifndef PXR_IMAGING_HD_GP_GENERATIVE_PROCEDURAL_FILTERING_SCENE_INDEX_H
#define PXR_IMAGING_HD_GP_GENERATIVE_PROCEDURAL_FILTERING_SCENE_INDEX_H
 
#include "pxr/imaging/hdGp/generativeProcedural.h"
#include "pxr/imaging/hd/filteringSceneIndex.h"
#include "pxr/usd/sdf/pathTable.h"
 
PXR_NAMESPACE_OPEN_SCOPE
 
class HdGpGenerativeProceduralFilteringSceneIndex;
TF_DECLARE_REF_PTRS(HdGpGenerativeProceduralFilteringSceneIndex);
 
class HdGpGenerativeProceduralFilteringSceneIndex final
    : public HdSingleInputFilteringSceneIndexBase
{
public:
    static HdGpGenerativeProceduralFilteringSceneIndexRefPtr New(
            const HdSceneIndexBaseRefPtr &inputScene,
            const TfTokenVector &allowedProceduralTypes) {
        return TfCreateRefPtr(
            new HdGpGenerativeProceduralFilteringSceneIndex(
                inputScene, allowedProceduralTypes));
    }
    static HdGpGenerativeProceduralFilteringSceneIndexRefPtr New(
            const HdSceneIndexBaseRefPtr &inputScene,
            const TfTokenVector &allowedProceduralTypes,
            const TfToken &targetPrimTypeName) {
        return TfCreateRefPtr(
            new HdGpGenerativeProceduralFilteringSceneIndex(
                inputScene, allowedProceduralTypes, targetPrimTypeName));
    }
 
    HdSceneIndexPrim GetPrim(const SdfPath &primPath) const override;
    SdfPathVector GetChildPrimPaths(const SdfPath &primPath) const override;
 
private:
    HdGpGenerativeProceduralFilteringSceneIndex(
        const HdSceneIndexBaseRefPtr &inputScene,
        const TfTokenVector &allowedProceduralTypes);
    HdGpGenerativeProceduralFilteringSceneIndex(
        const HdSceneIndexBaseRefPtr &inputScene,
        const TfTokenVector &allowedProceduralTypes,
        const TfToken &targetPrimTypeName);
 
    void _PrimsAdded(
        const HdSceneIndexBase &sender,
        const HdSceneIndexObserver::AddedPrimEntries &entries) override;
    void _PrimsRemoved(
        const HdSceneIndexBase &sender,
        const HdSceneIndexObserver::RemovedPrimEntries &entries) override;
    void _PrimsDirtied(
        const HdSceneIndexBase &sender,
        const HdSceneIndexObserver::DirtiedPrimEntries &entries) override;
 
    TfToken _GetProceduralType(HdSceneIndexPrim const& prim) const;
    bool _ShouldSkipPrim(HdSceneIndexPrim const& prim) const;
 
    const TfTokenVector _allowedProceduralTypes;
    const TfToken _targetPrimTypeName;
};
 
PXR_NAMESPACE_CLOSE_SCOPE
 
#endif