313 lines
14 KiB
C++
313 lines
14 KiB
C++
/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2006 Robert Osfield
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*
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* This library is open source and may be redistributed and/or modified under
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* the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or
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* (at your option) any later version. The full license is in LICENSE file
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* included with this distribution, and on the openscenegraph.org website.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* OpenSceneGraph Public License for more details.
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*/
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#ifndef OSG_GEOMETRY
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#define OSG_GEOMETRY 1
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#include <osg/Drawable>
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#include <osg/Vec2>
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#include <osg/Vec3>
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#include <osg/Vec4>
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#include <osg/Array>
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#include <osg/PrimitiveSet>
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// leave defined for OpenSceneGraph-3.2 release, post 3.2 associated methods will be only be available in deprecated_osg::Geometry
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#define OSG_DEPRECATED_GEOMETRY_BINDING 1
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namespace osg {
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class OSG_EXPORT Geometry : public Drawable
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{
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public:
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Geometry();
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/** Copy constructor using CopyOp to manage deep vs shallow copy. */
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Geometry(const Geometry& geometry,const CopyOp& copyop=CopyOp::SHALLOW_COPY);
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META_Node(osg, Geometry);
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virtual Geometry* asGeometry() { return this; }
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virtual const Geometry* asGeometry() const { return this; }
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bool empty() const;
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typedef std::vector< osg::ref_ptr<osg::Array> > ArrayList;
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void setVertexArray(Array* array);
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Array* getVertexArray() { return _vertexArray.get(); }
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const Array* getVertexArray() const { return _vertexArray.get(); }
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void setNormalArray(Array* array) { setNormalArray(array, osg::Array::BIND_UNDEFINED); }
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void setNormalArray(Array* array, osg::Array::Binding binding);
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Array* getNormalArray() { return _normalArray.get(); }
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const Array* getNormalArray() const { return _normalArray.get(); }
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void setColorArray(Array* array) { setColorArray(array, osg::Array::BIND_UNDEFINED); }
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void setColorArray(Array* array, osg::Array::Binding binding);
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Array* getColorArray() { return _colorArray.get(); }
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const Array* getColorArray() const { return _colorArray.get(); }
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void setSecondaryColorArray(Array* array) { setSecondaryColorArray(array, osg::Array::BIND_UNDEFINED); }
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void setSecondaryColorArray(Array* array, osg::Array::Binding binding);
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Array* getSecondaryColorArray() { return _secondaryColorArray.get(); }
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const Array* getSecondaryColorArray() const { return _secondaryColorArray.get(); }
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void setFogCoordArray(Array* array) { setFogCoordArray(array, osg::Array::BIND_UNDEFINED); }
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void setFogCoordArray(Array* array, osg::Array::Binding binding);
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Array* getFogCoordArray() { return _fogCoordArray.get(); }
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const Array* getFogCoordArray() const { return _fogCoordArray.get(); }
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void setTexCoordArray(unsigned int unit, Array* array) { setTexCoordArray(unit, array, osg::Array::BIND_UNDEFINED); }
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void setTexCoordArray(unsigned int unit, Array* array, osg::Array::Binding binding);
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Array* getTexCoordArray(unsigned int unit);
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const Array* getTexCoordArray(unsigned int unit) const;
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unsigned int getNumTexCoordArrays() const { return static_cast<unsigned int>(_texCoordList.size()); }
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void setTexCoordArrayList(const ArrayList& arrrayList);
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ArrayList& getTexCoordArrayList() { return _texCoordList; }
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const ArrayList& getTexCoordArrayList() const { return _texCoordList; }
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void setVertexAttribArray(unsigned int index, Array* array) { setVertexAttribArray(index, array, osg::Array::BIND_UNDEFINED); }
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void setVertexAttribArray(unsigned int index, Array* array, osg::Array::Binding binding);
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Array *getVertexAttribArray(unsigned int index);
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const Array *getVertexAttribArray(unsigned int index) const;
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unsigned int getNumVertexAttribArrays() const { return static_cast<unsigned int>(_vertexAttribList.size()); }
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void setVertexAttribArrayList(const ArrayList& arrayList);
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ArrayList& getVertexAttribArrayList() { return _vertexAttribList; }
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const ArrayList& getVertexAttribArrayList() const { return _vertexAttribList; }
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typedef std::vector< ref_ptr<PrimitiveSet> > PrimitiveSetList;
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void setPrimitiveSetList(const PrimitiveSetList& primitives);
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PrimitiveSetList& getPrimitiveSetList() { return _primitives; }
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const PrimitiveSetList& getPrimitiveSetList() const { return _primitives; }
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unsigned int getNumPrimitiveSets() const { return static_cast<unsigned int>(_primitives.size()); }
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PrimitiveSet* getPrimitiveSet(unsigned int pos) { return _primitives[pos].get(); }
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const PrimitiveSet* getPrimitiveSet(unsigned int pos) const { return _primitives[pos].get(); }
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/** Add a primitive set to the geometry. */
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bool addPrimitiveSet(PrimitiveSet* primitiveset);
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/** Set a primitive set to the specified position in geometry's primitive set list. */
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bool setPrimitiveSet(unsigned int i,PrimitiveSet* primitiveset);
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/** Insert a primitive set to the specified position in geometry's primitive set list. */
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bool insertPrimitiveSet(unsigned int i,PrimitiveSet* primitiveset);
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/** Remove primitive set(s) from the specified position in geometry's primitive set list. */
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bool removePrimitiveSet(unsigned int i,unsigned int numElementsToRemove=1);
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/** Get the index number of a primitive set, return a value between
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* 0 and getNumPrimitiveSet()-1 if found, if not found then return getNumPrimitiveSet().
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* When checking for a valid find value use if ((value=geometry->getPrimitiveSetIndex(primitive))!=geometry.getNumPrimitiveSet())
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*/
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unsigned int getPrimitiveSetIndex(const PrimitiveSet* primitiveset) const;
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/** Convenience method that checks all the vertex arrays to make sure that the buffer objects are all assigned appropriate.*/
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void configureBufferObjects();
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/** return true if any arrays are shared.*/
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bool containsSharedArrays() const;
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/** duplicate any shared arrays.*/
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void duplicateSharedArrays();
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/** When set to true, ignore the setUseDisplayList() settings, and hints to the drawImplementation
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method to use OpenGL vertex buffer objects for rendering.*/
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virtual void setUseVertexBufferObjects(bool flag);
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/** Force a recompile on next draw() of any OpenGL objects associated with this geoset.*/
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virtual void dirtyGLObjects();
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/** Resize any per context GLObject buffers to specified size. */
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virtual void resizeGLObjectBuffers(unsigned int maxSize);
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/** If State is non-zero, this function releases OpenGL objects for
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* the specified graphics context. Otherwise, releases OpenGL objects
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* for all graphics contexts. */
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virtual void releaseGLObjects(State* state=0) const;
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bool getArrayList(ArrayList& arrayList) const;
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typedef std::vector<osg::DrawElements*> DrawElementsList;
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bool getDrawElementsList(DrawElementsList& drawElementsList) const;
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osg::VertexBufferObject* getOrCreateVertexBufferObject();
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osg::ElementBufferObject* getOrCreateElementBufferObject();
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/** Return the estimated size of GLObjects (display lists/vertex buffer objects) that are associated with this drawable.
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* This size is used a hint for reuse of deleted display lists/vertex buffer objects. */
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virtual unsigned int getGLObjectSizeHint() const;
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/** Immediately compile this \c Drawable into an OpenGL Display List/VertexBufferObjects.
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* @note Operation is ignored if \c _useDisplayList is \c false or VertexBufferObjects are not used.
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*/
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virtual void compileGLObjects(RenderInfo& renderInfo) const;
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/** Draw Geometry directly ignoring an OpenGL display list which could be attached.
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* This is the internal draw method which does the drawing itself,
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* and is the method to override when deriving from Geometry for user-drawn objects.
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*/
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virtual void drawImplementation(RenderInfo& renderInfo) const;
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/** Set up the vertex arrays for the purpose of rendering, called by drawImplemtation() prior to it calling drawPrimitivesImplementation().*/
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void drawVertexArraysImplementation(RenderInfo& renderInfo) const;
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/** dispatch the primitives to OpenGL, called by drawImplemtation() after calling drawVertexArraysImplementation().*/
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void drawPrimitivesImplementation(RenderInfo& renderInfo) const;
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/** Return true, osg::Geometry does support accept(Drawable::AttributeFunctor&). */
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virtual bool supports(const Drawable::AttributeFunctor&) const { return true; }
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/** Accept an Drawable::AttributeFunctor and call its methods to tell it about the internal attributes that this Drawable has. */
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virtual void accept(Drawable::AttributeFunctor& af);
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/** Return true, osg::Geometry does support accept(Drawable::ConstAttributeFunctor&). */
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virtual bool supports(const Drawable::ConstAttributeFunctor&) const { return true; }
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/** Accept a Drawable::ConstAttributeFunctor and call its methods to tell it about the internal attributes that this Drawable has. */
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virtual void accept(Drawable::ConstAttributeFunctor& af) const;
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/** Return true, osg::Geometry does support accept(PrimitiveFunctor&). */
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virtual bool supports(const PrimitiveFunctor&) const { return true; }
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/** Accept a PrimitiveFunctor and call its methods to tell it about the internal primitives that this Drawable has. */
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virtual void accept(PrimitiveFunctor& pf) const;
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/** Return true, osg::Geometry does support accept(PrimitiveIndexFunctor&). */
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virtual bool supports(const PrimitiveIndexFunctor&) const { return true; }
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/** Accept a PrimitiveFunctor and call its methods to tell it about the internal primitives that this Drawable has. */
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virtual void accept(PrimitiveIndexFunctor& pf) const;
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protected:
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Geometry& operator = (const Geometry&) { return *this;}
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virtual ~Geometry();
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void addVertexBufferObjectIfRequired(osg::Array* array);
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void addElementBufferObjectIfRequired(osg::PrimitiveSet* primitiveSet);
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PrimitiveSetList _primitives;
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osg::ref_ptr<Array> _vertexArray;
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osg::ref_ptr<Array> _normalArray;
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osg::ref_ptr<Array> _colorArray;
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osg::ref_ptr<Array> _secondaryColorArray;
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osg::ref_ptr<Array> _fogCoordArray;
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ArrayList _texCoordList;
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ArrayList _vertexAttribList;
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bool _containsDeprecatedData;
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virtual VertexArrayState* createVertexArrayState(RenderInfo& renderInfo) const;
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public:
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/** Return true if the deprecated use array indices or BIND_PER_PRIMITIVE binding has been assigned to arrays.*/
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bool containsDeprecatedData() const { return _containsDeprecatedData; }
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/** fallback for deprecated functionality. Return true if the Geometry contains any array indices or BIND_PER_PRIMITIVE arrays. */
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bool checkForDeprecatedData();
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/** fallback for deprecated functionality. Removes any array indices and BIND_PER_PRIMITIVE arrays.*/
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void fixDeprecatedData();
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#if defined(OSG_DEPRECATED_GEOMETRY_BINDING)
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/** deprecated, Same values as Array::Binding.*/
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enum AttributeBinding
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{
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BIND_OFF=0,
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BIND_OVERALL=1,
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BIND_PER_PRIMITIVE_SET=2,
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BIND_PER_VERTEX=4
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};
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/** deprecated, use array->set*Binding(..). */
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void setNormalBinding(AttributeBinding ab);
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void setColorBinding(AttributeBinding ab);
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void setSecondaryColorBinding(AttributeBinding ab);
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void setFogCoordBinding(AttributeBinding ab);
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void setVertexAttribBinding(unsigned int index,AttributeBinding ab);
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/** deprecated, use array->get*Binding(..). */
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AttributeBinding getNormalBinding() const;
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AttributeBinding getColorBinding() const;
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AttributeBinding getSecondaryColorBinding() const;
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AttributeBinding getFogCoordBinding() const;
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AttributeBinding getVertexAttribBinding(unsigned int index) const;
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/** deprecated, use array->set*Normalize(..). */
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void setVertexAttribNormalize(unsigned int index,GLboolean norm);
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/** deprecated, use array->get*Normalize(..). */
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GLboolean getVertexAttribNormalize(unsigned int index) const;
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#endif
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};
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/** Convenience visitor for making sure that any BufferObjects that might be required are set up in the scene graph.*/
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class ConfigureBufferObjectsVisitor : public osg::NodeVisitor
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{
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public:
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ConfigureBufferObjectsVisitor():
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osg::NodeVisitor(osg::NodeVisitor::TRAVERSE_ALL_CHILDREN) {}
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void apply(osg::Geometry& geometry)
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{
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geometry.configureBufferObjects();
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}
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};
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/** Convenience function to be used for creating quad geometry with texture coords.
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* Tex coords go from left bottom (l,b) to right top (r,t).
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*/
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extern OSG_EXPORT Geometry* createTexturedQuadGeometry(const Vec3& corner,const Vec3& widthVec,const Vec3& heightVec, float l, float b, float r, float t);
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/** Convenience function to be used for creating quad geometry with texture coords.
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* Tex coords go from bottom left (0,0) to top right (s,t).
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*/
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inline Geometry* createTexturedQuadGeometry(const Vec3& corner,const Vec3& widthVec,const Vec3& heightVec, float s=1.0f, float t=1.0f)
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{
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return createTexturedQuadGeometry(corner,widthVec,heightVec, 0.0f, 0.0f, s, t);
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}
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} // namespace osg
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#endif
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