133 lines
4.3 KiB
C++
133 lines
4.3 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_IMAGESEQUENCE
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#define OSG_IMAGESEQUENCE 1
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#include <OpenThreads/Mutex>
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#include <osg/ImageStream>
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#include <osg/StateAttribute>
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#include <list>
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namespace osg {
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/**
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* Image Buffer class.
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*/
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class OSG_EXPORT ImageSequence : public ImageStream
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{
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public:
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ImageSequence();
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/** Copy constructor using CopyOp to manage deep vs shallow copy. */
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ImageSequence(const ImageSequence& ImageSequence, const CopyOp& copyop=CopyOp::SHALLOW_COPY);
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virtual Object* cloneType() const { return new ImageSequence(); }
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virtual Object* clone(const CopyOp& copyop) const { return new ImageSequence(*this,copyop); }
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virtual bool isSameKindAs(const Object* obj) const { return dynamic_cast<const ImageSequence*>(obj)!=0; }
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virtual const char* libraryName() const { return "osg"; }
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virtual const char* className() const { return "ImageSequence"; }
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/** Return -1 if *this < *rhs, 0 if *this==*rhs, 1 if *this>*rhs. */
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virtual int compare(const Image& rhs) const;
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virtual void setReferenceTime(double t) { _referenceTime = t; }
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virtual double getReferenceTime() const { return _referenceTime; }
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virtual void setTimeMultiplier(double tm) { _timeMultiplier = tm; }
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virtual double getTimeMultiplier() const { return _timeMultiplier; }
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typedef std::list< osg::ref_ptr<osg::Image> > Images;
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typedef std::list< std::string > FileNames;
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virtual void seek(double time);
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virtual void play();
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virtual void pause();
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virtual void rewind();
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enum Mode
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{
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PRE_LOAD_ALL_IMAGES,
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PAGE_AND_RETAIN_IMAGES,
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PAGE_AND_DISCARD_USED_IMAGES
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};
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void setMode(Mode mode);
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Mode getMode() const { return _mode; }
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void setLength(double length);
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virtual double getLength() const { return _length; }
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void addImageFile(const std::string& fileName);
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FileNames& getFileNames() { return _fileNames; }
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const FileNames& getFileNames() const { return _fileNames; }
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void addImage(osg::Image* image);
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Images& getImages() { return _images; }
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const Images& getImages() const { return _images; }
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virtual void update(NodeVisitor* nv);
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struct OSG_EXPORT UpdateCallback : public osg::StateAttribute::Callback
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{
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virtual void operator () (osg::StateAttribute* attr, osg::NodeVisitor* nv);
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};
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protected:
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virtual ~ImageSequence() {}
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void setImageToChild(const osg::Image* image);
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void computeTimePerImage();
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double _referenceTime;
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double _timeMultiplier;
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Mode _mode;
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double _length;
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double _timePerImage;
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OpenThreads::Mutex _mutex;
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FileNames _fileNames;
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FileNames::iterator _fileNamesIterator;
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double _fileNamesIteratorTime;
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Images _images;
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typedef std::pair< std::string, osg::ref_ptr<osg::Image> > FileNameImagePair;
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typedef std::list< FileNameImagePair > FileNameImageList;
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FileNameImageList _filesRequested;
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Images::iterator _imageIterator;
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double _imageIteratorTime;
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bool _seekTimeSet;
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double _seekTime;
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};
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} // namespace
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#endif
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