flattenUtils.h

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//
// Copyright 2019 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:
// Section 6. Trademarks. is deleted and replaced with:
//
// 6. Trademarks. This License does not grant permission to use the trade
//    names, trademarks, service marks, or product names of the Licensor
//    and its affiliates, except as required to comply with Section 4(c) of
//    the License and to reproduce the content of the NOTICE file.
//
// You may obtain a copy of the Apache License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the Apache License with the above modification is
// distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, either express or implied. See the Apache License for the specific
// language governing permissions and limitations under the Apache License.
//
#ifndef PXR_USD_USD_FLATTEN_UTILS_H
#define PXR_USD_USD_FLATTEN_UTILS_H


#include "pxr/pxr.h"
#include "pxr/usd/usd/api.h"
#include "pxr/usd/usd/stage.h"
#include "pxr/usd/sdf/declareHandles.h"
#include "pxr/usd/pcp/layerStackIdentifier.h"

PXR_NAMESPACE_OPEN_SCOPE

SDF_DECLARE_HANDLES(SdfLayer);

USD_API
SdfLayerRefPtr
UsdFlattenLayerStack(const PcpLayerStackRefPtr &layerStack,
                     const std::string& tag = std::string());

using UsdFlattenResolveAssetPathFn = std::function<std::string(
        const SdfLayerHandle& sourceLayer, 
        const std::string& assetPath)>;

USD_API
SdfLayerRefPtr
UsdFlattenLayerStack(const PcpLayerStackRefPtr &layerStack,
                     const UsdFlattenResolveAssetPathFn& resolveAssetPathFn,
                     const std::string& tag = std::string());

USD_API
std::string
UsdFlattenLayerStackResolveAssetPath(
    const SdfLayerHandle& sourceLayer,
    const std::string& assetPath);


PXR_NAMESPACE_CLOSE_SCOPE

#endif /* PXR_USD_USD_FLATTEN_UTILS_H */