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imageShaderRenderPass.h
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2 // Copyright 2019 Pixar
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24 #ifndef HDST_IMAGE_SHADER_RENDER_PASS_H
25 #define HDST_IMAGE_SHADER_RENDER_PASS_H
26 
27 #include "pxr/pxr.h"
28 #include "pxr/imaging/hdSt/api.h"
29 #include "pxr/imaging/hdSt/drawItemInstance.h"
30 #include "pxr/imaging/hd/renderPass.h"
31 
32 #include <boost/shared_ptr.hpp>
33 
34 PXR_NAMESPACE_OPEN_SCOPE
35 
36 typedef boost::shared_ptr<class HdStResourceRegistry>
37  HdStResourceRegistrySharedPtr;
38 typedef boost::shared_ptr<class HdSt_ImageShaderRenderPass>
39  HdSt_ImageShaderRenderPassSharedPtr;
40 typedef boost::shared_ptr<class HdSt_DrawBatch>
41  HdSt_DrawBatchSharedPtr;
42 
43 class Hgi;
44 
53 class HdSt_ImageShaderRenderPass : public HdRenderPass {
54 public:
55  HDST_API
56  HdSt_ImageShaderRenderPass(HdRenderIndex *index,
57  HdRprimCollection const &collection);
58 
59  HDST_API
60  virtual ~HdSt_ImageShaderRenderPass();
61 
62 protected:
63  virtual void _Prepare(TfTokenVector const &renderTags) override;
64 
65  virtual void _Execute(HdRenderPassStateSharedPtr const &renderPassState,
66  TfTokenVector const &renderTags) override;
67 
68  virtual void _MarkCollectionDirty() override;
69 
70 private:
71  // Setup a BAR for a single triangle
72  void _SetupVertexPrimvarBAR(HdStResourceRegistrySharedPtr const&);
73 
74  // We re-use the immediateBatch to draw the full-screen triangle.
75  HdRprimSharedData _sharedData;
76  HdStDrawItem _drawItem;
77  HdStDrawItemInstance _drawItemInstance;
78  HdSt_DrawBatchSharedPtr _immediateBatch;
79  Hgi* _hgi;
80 };
81 
82 PXR_NAMESPACE_CLOSE_SCOPE
83 
84 #endif
virtual void _MarkCollectionDirty()
Optional API: let derived classes mark their collection tracking as dirty.
Definition: renderPass.h:133
The Hydra render index is a flattened representation of the client scene graph, which may be composed...
Definition: renderIndex.h:119
A container to store instance state for a drawitem.
virtual void _Prepare(TfTokenVector const &renderTags)
Optional API: let derived classes prepare data.
Definition: renderPass.h:139
An abstract class representing a single render iteration over a set of prims (the HdRprimCollection)...
Definition: renderPass.h:71
virtual void _Execute(HdRenderPassStateSharedPtr const &renderPassState, TfTokenVector const &renderTags)=0
Virtual API: Execute the buckets corresponding to renderTags; renderTags.empty() implies execute ever...
std::vector< TfToken > TfTokenVector
Convenience types.
Definition: token.h:438
A named, semantic collection of objects.
Hydra Graphics Interface.
Definition: hgi.h:56