0a1db3d6fc
git-svn-id: http://svn.openscenegraph.org/osg/OpenSceneGraph/trunk@14832 16af8721-9629-0410-8352-f15c8da7e697
105 lines
3.8 KiB
C++
105 lines
3.8 KiB
C++
/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2014 Robert Osfield
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* Copyright (C) 2012 David Callu
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* std::vector specialization : Pawel Ksiezopolski
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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_BUFFERTEMPLATE
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#define OSG_BUFFERTEMPLATE 1
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#include <osg/BufferObject>
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#include <vector>
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namespace osg
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{
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/** Template buffer class to be used with a struct as template parameter.
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* This class is useful to send C++ structures on the GPU (e.g. for uniform blocks) but be careful to the alignments rules on the GPU side !
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*/
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template <typename T>
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class BufferTemplate : public BufferData
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{
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public:
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BufferTemplate():
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BufferData(),
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_data(T())
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{}
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/** Copy constructor using CopyOp to manage deep vs shallow copy.*/
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BufferTemplate(const BufferTemplate<T>& bt,const CopyOp& copyop=CopyOp::SHALLOW_COPY):
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osg::BufferData(bt,copyop),
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_data(bt._data)
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{}
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virtual bool isSameKindAs(const Object* obj) const { return dynamic_cast<const BufferTemplate<T>*>(obj)!=NULL; }
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virtual const char* libraryName() const { return "osg"; }
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virtual const char* className() const { return "BufferTemplate<T>"; }
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virtual Object* cloneType() const { return new BufferTemplate<T>(); }
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virtual Object* clone(const CopyOp& copyop) const { return new BufferTemplate<T>(*this,copyop); }
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virtual const GLvoid* getDataPointer() const { return &_data; }
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virtual unsigned int getTotalDataSize() const { return sizeof(T); }
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const T& getData() const { return _data; }
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T& getData() { return _data; }
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void setData(const T& data) { _data = data; dirty(); }
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protected:
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virtual ~BufferTemplate() {};
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private:
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T _data;
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};
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/** BufferTemplate specialization for std::vector
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*/
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template <typename T>
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class BufferTemplate< std::vector<T> > : public BufferData
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{
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public:
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BufferTemplate():
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BufferData(),
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_data()
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{}
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/** Copy constructor using CopyOp to manage deep vs shallow copy.*/
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BufferTemplate(const BufferTemplate< std::vector<T> >& bt,const CopyOp& copyop=CopyOp::SHALLOW_COPY):
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osg::BufferData(bt,copyop),
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_data(bt._data)
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{}
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virtual bool isSameKindAs(const Object* obj) const { return dynamic_cast<const BufferTemplate< std::vector<T> >*>(obj)!=NULL; }
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virtual const char* libraryName() const { return "osg"; }
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virtual const char* className() const { return "BufferTemplate<std::vector<T> >"; }
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virtual Object* cloneType() const { return new BufferTemplate< std::vector<T> >(); }
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virtual Object* clone(const CopyOp& copyop) const { return new BufferTemplate< std::vector<T> >(*this,copyop); }
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virtual const GLvoid* getDataPointer() const { return &_data[0]; }
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virtual unsigned int getTotalDataSize() const { return _data.size() * sizeof(T); }
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const std::vector<T>& getData() const { return _data; }
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std::vector<T>& getData() { return _data; }
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void setData(const std::vector<T>& data) { _data = data; dirty(); }
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protected:
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virtual ~BufferTemplate() {};
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private:
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std::vector<T> _data;
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};
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}
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#endif
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