computation.h

//
// Copyright 2016 Pixar
//
// Licensed under the terms set forth in the LICENSE.txt file available at
// https://openusd.org/license.
//
#ifndef PXR_IMAGING_HD_ST_COMPUTATION_H
#define PXR_IMAGING_HD_ST_COMPUTATION_H
 
#include "pxr/pxr.h"
#include "pxr/imaging/hdSt/api.h"
 
#include <memory>
#include <vector>
 
PXR_NAMESPACE_OPEN_SCOPE
 
 
class HdResourceRegistry;
 
using HdBufferArrayRangeSharedPtr = std::shared_ptr<class HdBufferArrayRange>;
using HdBufferSpecVector = std::vector<struct HdBufferSpec>;
 
using HdStComputationSharedPtr = std::shared_ptr<class HdStComputation>;
using HdStComputationSharedPtrVector = std::vector<HdStComputationSharedPtr>;
 
class HdStComputation
{
public:
    HDST_API
    virtual ~HdStComputation();
 
    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_ST_COMPUTATION_H