aovInputTask.h

//
// Copyright 2020 Pixar
//
// Licensed under the terms set forth in the LICENSE.txt file available at
// https://openusd.org/license.
//
#ifndef PXR_IMAGING_HDX_AOV_INPUT_TASK_H
#define PXR_IMAGING_HDX_AOV_INPUT_TASK_H
 
#include "pxr/pxr.h"
#include "pxr/imaging/hdx/api.h"
#include "pxr/imaging/hdx/task.h"
#include "pxr/imaging/hgi/texture.h"
 
PXR_NAMESPACE_OPEN_SCOPE
 
struct HdxAovInputTaskParams;
 
class HdxAovInputTask : public HdxTask
{
public:
    using TaskParams = HdxAovInputTaskParams;
 
    HDX_API
    HdxAovInputTask(HdSceneDelegate* delegate, SdfPath const& id);
 
    HDX_API
    ~HdxAovInputTask() override;
 
    bool IsConverged() const override;
 
    HDX_API
    void Prepare(
        HdTaskContext* ctx,
        HdRenderIndex* renderIndex) override;
 
    HDX_API
    void Execute(HdTaskContext* ctx) override;
 
protected:
    HDX_API
    void _Sync(
        HdSceneDelegate* delegate,
        HdTaskContext* ctx,
        HdDirtyBits* dirtyBits) override;
 
private:
    void _UpdateTexture(
        HdTaskContext* ctx,
        HgiTextureHandle& texture,
        HdRenderBuffer* buffer,
        HgiTextureUsageBits usage);
    
    void _UpdateIntermediateTexture(
        HgiTextureHandle& texture,
        HdRenderBuffer* buffer,
        HgiTextureUsageBits usage);
 
    bool _converged;
 
    SdfPath _aovBufferPath;
    SdfPath _depthBufferPath;
 
    HdRenderBuffer* _aovBuffer;
    HdRenderBuffer* _depthBuffer;
 
    HgiTextureHandle _aovTexture;
    HgiTextureHandle _depthTexture;
    HgiTextureHandle _aovTextureIntermediate;
    HgiTextureHandle _depthTextureIntermediate;
 
    HdxAovInputTask() = delete;
    HdxAovInputTask(const HdxAovInputTask &) = delete;
    HdxAovInputTask &operator =(const HdxAovInputTask &) = delete;
};
 
 
struct HdxAovInputTaskParams
{
    HdxAovInputTaskParams() {}
 
    SdfPath aovBufferPath;
    SdfPath depthBufferPath;
};
 
// VtValue requirements
HDX_API
std::ostream& operator<<(std::ostream& out, const HdxAovInputTaskParams& pv);
HDX_API
bool operator==(const HdxAovInputTaskParams& lhs,
                const HdxAovInputTaskParams& rhs);
HDX_API
bool operator!=(const HdxAovInputTaskParams& lhs,
                const HdxAovInputTaskParams& rhs);
 
 
PXR_NAMESPACE_CLOSE_SCOPE
 
#endif