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125 lines
3.9 KiB
125 lines
3.9 KiB
/* -*-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_IMAGESTREAM
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#define OSG_IMAGESTREAM 1
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#include <osg/Image>
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#include <osg/AudioStream>
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namespace osg {
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// forward declare of osg::Texture
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class Texture;
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/**
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* Image Stream class.
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*/
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class OSG_EXPORT ImageStream : public Image
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{
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public:
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ImageStream();
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/** Copy constructor using CopyOp to manage deep vs shallow copy. */
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ImageStream(const ImageStream& image,const CopyOp& copyop=CopyOp::SHALLOW_COPY);
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virtual Object* cloneType() const { return new ImageStream(); }
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virtual Object* clone(const CopyOp& copyop) const { return new ImageStream(*this,copyop); }
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virtual bool isSameKindAs(const Object* obj) const { return dynamic_cast<const ImageStream*>(obj)!=0; }
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virtual const char* libraryName() const { return "osg"; }
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virtual const char* className() const { return "ImageStream"; }
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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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enum StreamStatus
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{
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INVALID,
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PLAYING,
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PAUSED,
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REWINDING
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};
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virtual void seek(double /*time*/) {}
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virtual void play() { _status=PLAYING; }
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virtual void pause() { _status=PAUSED; }
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virtual void rewind() { _status=REWINDING; }
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virtual void quit(bool /*waitForThreadToExit*/ = true) {}
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StreamStatus getStatus() const { return _status; }
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enum LoopingMode
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{
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NO_LOOPING,
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LOOPING
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};
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void setLoopingMode(LoopingMode mode)
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{
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if (_loopingMode == mode) return;
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_loopingMode = mode;
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applyLoopingMode();
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}
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LoopingMode getLoopingMode() const { return _loopingMode; }
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virtual double getCreationTime() const { return HUGE_VAL; }
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virtual double getLength() const { return 0.0; }
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virtual double getFrameRate() const { return 0.0; }
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virtual double getCurrentTime() const { return 0.0; }
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virtual void setReferenceTime(double) {}
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virtual double getReferenceTime() const { return 0.0; }
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virtual void setTimeMultiplier(double) {}
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virtual double getTimeMultiplier() const { return 0.0; }
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virtual void setVolume(float) {}
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virtual float getVolume() const { return 0.0f; }
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/// set the balance of the audio: -1 = left, 0 = center, 1 = right
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virtual float getAudioBalance() { return 0.0f; }
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virtual void setAudioBalance(float /*b*/) {}
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typedef std::vector< osg::ref_ptr<osg::AudioStream> > AudioStreams;
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void setAudioStreams(const AudioStreams& asl) { _audioStreams = asl; }
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AudioStreams& getAudioStreams() { return _audioStreams; }
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const AudioStreams& getAudioStreams() const { return _audioStreams; }
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/** create a suitable texture for this imagestream, return NULL, if not supported
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* implement this method in subclasses to use special technologies like CoreVideo
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* or similar.
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*/
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virtual osg::Texture* createSuitableTexture() { return NULL; }
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protected:
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virtual void applyLoopingMode() {}
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virtual ~ImageStream() {}
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StreamStatus _status;
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LoopingMode _loopingMode;
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AudioStreams _audioStreams;
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};
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} // namespace
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#endif
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