FGFS-4.1/OpenSceneGraph
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Introduced Drawable::CreateVertexArrayStateCallback to enable customization of how VertexArrayState objects.

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Added public accessors to the Drawable::VertexArrayStateList.
This commit is contained in:
Robert Osfield
2017-11-29 14:22:31 +00:00
parent 03434b20cf
commit a6069c3226
11 changed files with 62 additions and 14 deletions
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50
include/osg/Drawable
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@@ -278,7 +278,53 @@ class OSG_EXPORT Drawable : public Node
*/
virtual void compileGLObjects(RenderInfo& renderInfo) const;
virtual VertexArrayState* createVertexArrayState(RenderInfo& renderInfo) const;
/** Callback class for overriding the default Drawable::createCreateVertexArrayStateImplementation().*/
struct CreateVertexArrayStateCallback : public virtual osg::Object
{
CreateVertexArrayStateCallback() {}
CreateVertexArrayStateCallback(const CreateVertexArrayStateCallback& rhs,const CopyOp& copyop):
Object(rhs, copyop) {}
META_Object(osg, CreateVertexArrayStateCallback);
/** do customized createVertexArrayState .*/
virtual osg::VertexArrayState* createVertexArrayStateImplementation(osg::RenderInfo& renderInfo, const osg::Drawable* drawable) const
{
return drawable->createVertexArrayStateImplementation(renderInfo);
}
};
/** Set the callback to override the default Drawable::createCreateVertexArrayStateImplementation().*/
void setCreateVertexArrayStateCallback(CreateVertexArrayStateCallback* cb) { _createVertexArrayStateCallback = cb; }
/** Get the callback that overrides the default Drawable::createCreateVertexArrayStateImplementation().*/
CreateVertexArrayStateCallback* getCreateVertexArrayStateCallback() { return _createVertexArrayStateCallback.get(); }
/** Get the const callback that overrides the default Drawable::createCreateVertexArrayStateImplementation().*/
const CreateVertexArrayStateCallback* getCreateVertexArrayStateCallback() const { return _createVertexArrayStateCallback.get(); }
/** Craeate tje VertexArrayState object used to track vertex array and vertex array object state. This method will be called automatically during rendering setup so users should not call this themselves.*/
inline VertexArrayState* createVertexArrayState(RenderInfo& renderInfo) const
{
if (_createVertexArrayStateCallback.valid()) return _createVertexArrayStateCallback->createVertexArrayStateImplementation(renderInfo, this);
else return createVertexArrayStateImplementation(renderInfo);
}
/** Implementaion of Craeate tje VertexArrayState object.*/
virtual VertexArrayState* createVertexArrayStateImplementation(RenderInfo& renderInfo) const;
typedef buffered_object< osg::ref_ptr<VertexArrayState> > VertexArrayStateList;
void setVertexArrayStateList(VertexArrayStateList& vasl) { _vertexArrayStateList = vasl; }
VertexArrayStateList& getVertexArrayStateList() { return _vertexArrayStateList; }
const VertexArrayStateList& getVertexArrayStateList() const { return _vertexArrayStateList; }
/** Set whether to use a mutex to ensure ref() and unref() are thread safe.*/
@@ -491,10 +537,10 @@ class OSG_EXPORT Drawable : public Node
typedef osg::buffered_value<GLuint> GLObjectList;
mutable GLObjectList _globjList;
typedef buffered_object< osg::ref_ptr<VertexArrayState> > VertexArrayStateList;
mutable VertexArrayStateList _vertexArrayStateList;
ref_ptr<DrawCallback> _drawCallback;
ref_ptr<CreateVertexArrayStateCallback> _createVertexArrayStateCallback;
};
#ifdef INLINE_DRAWABLE_DRAW