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/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2006 Robert Osfield
*
* This library is open source and may be redistributed and/or modified under
* the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or
* (at your option) any later version. The full license is in LICENSE file
* included with this distribution, and on the openscenegraph.org website.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* OpenSceneGraph Public License for more details.
*/
#ifndef OSG_IMAGESTREAM
#define OSG_IMAGESTREAM 1
#include <osg/Image>
#include <osg/AudioStream>
namespace osg {
// forward declare of osg::Texture
class Texture;
/**
* Image Stream class.
*/
class OSG_EXPORT ImageStream : public Image
{
public:
ImageStream();
/** Copy constructor using CopyOp to manage deep vs shallow copy. */
ImageStream(const ImageStream& image,const CopyOp& copyop=CopyOp::SHALLOW_COPY);
virtual Object* cloneType() const { return new ImageStream(); }
virtual Object* clone(const CopyOp& copyop) const { return new ImageStream(*this,copyop); }
virtual bool isSameKindAs(const Object* obj) const { return dynamic_cast<const ImageStream*>(obj)!=0; }
virtual const char* libraryName() const { return "osg"; }
virtual const char* className() const { return "ImageStream"; }
/** Return -1 if *this < *rhs, 0 if *this==*rhs, 1 if *this>*rhs. */
virtual int compare(const Image& rhs) const;
enum StreamStatus
{
INVALID,
PLAYING,
PAUSED,
REWINDING
};
virtual void seek(double /*time*/) {}
virtual void play() { _status=PLAYING; }
virtual void pause() { _status=PAUSED; }
virtual void rewind() { _status=REWINDING; }
virtual void quit(bool /*waitForThreadToExit*/ = true) {}
StreamStatus getStatus() const { return _status; }
enum LoopingMode
{
NO_LOOPING,
LOOPING
};
void setLoopingMode(LoopingMode mode)
{
if (_loopingMode == mode) return;
_loopingMode = mode;
applyLoopingMode();
}
LoopingMode getLoopingMode() const { return _loopingMode; }
virtual double getCreationTime() const { return HUGE_VAL; }
virtual double getLength() const { return 0.0; }
virtual double getFrameRate() const { return 0.0; }
virtual double getCurrentTime() const { return 0.0; }
virtual void setReferenceTime(double) {}
virtual double getReferenceTime() const { return 0.0; }
virtual void setTimeMultiplier(double) {}
virtual double getTimeMultiplier() const { return 0.0; }
virtual void setVolume(float) {}
virtual float getVolume() const { return 0.0f; }
/// set the balance of the audio: -1 = left, 0 = center, 1 = right
virtual float getAudioBalance() { return 0.0f; }
virtual void setAudioBalance(float /*b*/) {}
typedef std::vector< osg::ref_ptr<osg::AudioStream> > AudioStreams;
void setAudioStreams(const AudioStreams& asl) { _audioStreams = asl; }
AudioStreams& getAudioStreams() { return _audioStreams; }
const AudioStreams& getAudioStreams() const { return _audioStreams; }
/** create a suitable texture for this imagestream, return NULL, if not supported
* implement this method in subclasses to use special technologies like CoreVideo
* or similar.
*/
virtual osg::Texture* createSuitableTexture() { return NULL; }
protected:
virtual void applyLoopingMode() {}
virtual ~ImageStream() {}
StreamStatus _status;
LoopingMode _loopingMode;
AudioStreams _audioStreams;
};
} // namespace
#endif
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