matfiltFilterChain.h

//
// 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 EXT_RMANPKG_24_0_PLUGIN_RENDERMAN_PLUGIN_HD_PRMAN_MATFILT_FILTER_CHAIN_H
#define EXT_RMANPKG_24_0_PLUGIN_RENDERMAN_PLUGIN_HD_PRMAN_MATFILT_FILTER_CHAIN_H

#include "pxr/pxr.h"
#include "pxr/imaging/hd/material.h"
#include "pxr/base/vt/value.h"
#include "pxr/usd/sdf/path.h"
#include "pxr/usd/ndr/declare.h"
#include <map>

PXR_NAMESPACE_OPEN_SCOPE

typedef void (*MatfiltFilterFnc)
    (const SdfPath & networkId,
     HdMaterialNetwork2 & network,
     const std::map<TfToken, VtValue> & contextValues,
     const NdrTokenVec & shaderTypePriority,
     std::vector<std::string> * outputErrorMessages);

typedef std::vector<MatfiltFilterFnc> MatfiltFilterChain;

void MatfiltExecFilterChain(
    MatfiltFilterChain const& filterChain,
    const SdfPath & networkId,
    HdMaterialNetwork2 & network,
    const std::map<TfToken, VtValue> & contextValues,
    const NdrTokenVec & shaderTypePriority,
    std::vector<std::string> * outputErrorMessages = nullptr);

PXR_NAMESPACE_CLOSE_SCOPE

#endif