computation.h

//
// Copyright 2016 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_IMAGING_HD_COMPUTATION_H
#define PXR_IMAGING_HD_COMPUTATION_H

#include "pxr/pxr.h"
#include "pxr/imaging/hd/api.h"
#include "pxr/imaging/hd/version.h"
#include "pxr/imaging/hd/bufferSpec.h"
#include "pxr/imaging/hd/perfLog.h"

#include <memory>
#include <vector>

PXR_NAMESPACE_OPEN_SCOPE


using HdBufferArrayRangeSharedPtr = std::shared_ptr<class HdBufferArrayRange>;

using HdComputationSharedPtr = std::shared_ptr<class HdComputation>;
using HdComputationSharedPtrVector = std::vector<HdComputationSharedPtr>;

class HdComputation
{
public:
    HD_API
    virtual ~HdComputation();

    virtual void Execute(
        HdBufferArrayRangeSharedPtr const &range,
        HdResourceRegistry *resourceRegistry) = 0;

    virtual int GetNumOutputElements() const = 0;

    virtual void GetBufferSpecs(HdBufferSpecVector *specs) const = 0;

    bool IsValid() { return true; }
};


PXR_NAMESPACE_CLOSE_SCOPE

#endif  // PXR_IMAGING_HD_COMPUTATION_H