704 lines
24 KiB
C++
704 lines
24 KiB
C++
/* OpenSceneGraph example, osgmovie.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include <osgViewer/Viewer>
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#include <osgViewer/ViewerEventHandlers>
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#include <osgDB/ReadFile>
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#include <osg/Geode>
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#include <osg/Geometry>
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#include <osg/StateSet>
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#include <osg/Material>
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#include <osg/Texture2D>
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#include <osg/TextureRectangle>
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#include <osg/TextureCubeMap>
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#include <osg/TexMat>
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#include <osg/CullFace>
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#include <osg/ImageStream>
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#include <osg/io_utils>
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#include <osgDB/FileUtils>
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#include <osgGA/TrackballManipulator>
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#include <osgGA/StateSetManipulator>
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#include <osgGA/EventVisitor>
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#include <iostream>
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class ImageStreamStateCallback : public osg::Drawable::UpdateCallback {
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public:
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ImageStreamStateCallback(osgText::Text* text, osg::ImageStream* is)
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: osg::Drawable::UpdateCallback()
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, _text(text)
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, _imageStream(is)
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, _fps(0)
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, _lastData(NULL)
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, _lastDataTimeStamp(0)
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{
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}
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void setImageStream(osg::ImageStream* is) { _imageStream = is; }
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virtual void update(osg::NodeVisitor* nv, osg::Drawable*)
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{
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if (_text.valid() && _imageStream.valid())
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{
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if (_imageStream->data() != _lastData)
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{
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double dt = nv->getFrameStamp()->getReferenceTime() - _lastDataTimeStamp;
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_fps = 0.9 * _fps + 0.1 * (1 / dt);
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_fps = osg::round(10 * _fps) / 10.0;
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_lastDataTimeStamp = nv->getFrameStamp()->getReferenceTime();
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_lastData = _imageStream->data();
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}
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std::ostringstream ss;
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ss << _imageStream->s() << "x" << _imageStream->t() << " | " << _fps << "fps";
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ss << " | len: " << osg::round(_imageStream->getLength()*10) / 10.0;
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ss << " | cur: " << osg::round(_imageStream->getCurrentTime()*10) / 10.0;
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if (_imageStream->getStatus() == osg::ImageStream::PLAYING)
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{
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ss << " | playing";
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}
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else
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{
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ss << " | paused";
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_fps = 0;
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}
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if (_imageStream->getLoopingMode() == osg::ImageStream::LOOPING) {
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ss << " | looping";
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}
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else
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{
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ss << " | don't loop";
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}
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_text->setText(ss.str());
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}
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}
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private:
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osg::observer_ptr<osgText::Text> _text;
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osg::observer_ptr<osg::ImageStream> _imageStream;
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float _fps;
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unsigned char* _lastData;
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double _lastDataTimeStamp;
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};
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class MovieEventHandler : public osgGA::GUIEventHandler
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{
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public:
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MovieEventHandler()
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: osgGA::GUIEventHandler()
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, _currentImageStream()
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, _currentGeometry()
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{
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}
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virtual bool handle(const osgGA::GUIEventAdapter& ea,osgGA::GUIActionAdapter& aa, osg::Object*, osg::NodeVisitor* nv);
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virtual void getUsage(osg::ApplicationUsage& usage) const;
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protected:
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void setColor(osg::Geometry* geo, const osg::Vec4& color)
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{
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if (!geo)
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return;
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osg::Vec4Array* c = dynamic_cast<osg::Vec4Array*>(geo->getColorArray());
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if (c) (*c)[0] = color;
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geo->dirtyDisplayList();
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c->dirty();
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}
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virtual ~MovieEventHandler() {}
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osg::observer_ptr<osg::ImageStream> _currentImageStream;
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osg::observer_ptr<osg::Geometry> _currentGeometry;
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};
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bool MovieEventHandler::handle(const osgGA::GUIEventAdapter& ea,osgGA::GUIActionAdapter& aa, osg::Object*, osg::NodeVisitor* nv)
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{
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switch(ea.getEventType())
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{
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case(osgGA::GUIEventAdapter::MOVE):
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{
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if(_currentImageStream.valid() && (ea.getModKeyMask() & osgGA::GUIEventAdapter::MODKEY_SHIFT))
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{
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float scalar = (ea.getXnormalized()+1) / 2.0;
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_currentImageStream->seek(scalar * _currentImageStream->getLength());
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}
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}
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break;
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case(osgGA::GUIEventAdapter::RELEASE):
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{
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osgViewer::View* view = dynamic_cast<osgViewer::View*>(&aa);
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osgUtil::LineSegmentIntersector::Intersections intersections;
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bool foundIntersection = view==0 ? false : view->computeIntersections(ea, intersections);
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if (foundIntersection)
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{
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// use the nearest intersection
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const osgUtil::LineSegmentIntersector::Intersection& intersection = *(intersections.begin());
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osg::Drawable* drawable = intersection.drawable.get();
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osg::Geometry* geometry = drawable ? drawable->asGeometry() : 0;
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if (geometry) {
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osg::Texture* tex = geometry->getStateSet() ? dynamic_cast<osg::Texture*>(geometry->getStateSet()->getTextureAttribute(0, osg::StateAttribute::TEXTURE)) : NULL;
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if (tex) {
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osg::ImageStream* is = dynamic_cast<osg::ImageStream*>(tex->getImage(0));
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if (is)
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{
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setColor(_currentGeometry.get(), osg::Vec4(0.7, 0.7, 0.7, 1.0));
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_currentGeometry = geometry;
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setColor(_currentGeometry.get(), osg::Vec4(1,1,1,1));
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_currentImageStream = is;
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if (is->getStatus() == osg::ImageStream::PLAYING)
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{
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is->pause();
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}
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else
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{
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is->play();
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}
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}
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}
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}
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}
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break;
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}
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case(osgGA::GUIEventAdapter::KEYDOWN):
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{
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if (!_currentImageStream.valid())
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return false;
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if (ea.getKey()=='p')
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{
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osg::ImageStream::StreamStatus playToggle = _currentImageStream->getStatus();
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if (playToggle != osg::ImageStream::PLAYING)
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{
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std::cout<< _currentImageStream.get() << " Play"<<std::endl;
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_currentImageStream->play();
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}
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else
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{
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// playing, so pause
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std::cout<< _currentImageStream.get() << " Pause"<<std::endl;
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_currentImageStream->pause();
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}
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return true;
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}
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else if (ea.getKey()=='r')
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{
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std::cout<< _currentImageStream.get() << " Restart"<<std::endl;
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_currentImageStream->rewind();
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_currentImageStream->play();
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return true;
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}
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else if (ea.getKey()=='>')
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{
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std::cout << _currentImageStream.get() << " Seeking"<<std::endl;
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_currentImageStream->seek(_currentImageStream->getCurrentTime() + 1.0);
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return true;
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}
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else if (ea.getKey()=='L')
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{
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if ( _currentImageStream->getLoopingMode() == osg::ImageStream::LOOPING)
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{
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std::cout<< _currentImageStream.get() << " Toggle Looping Off"<<std::endl;
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_currentImageStream->setLoopingMode( osg::ImageStream::NO_LOOPING );
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}
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else
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{
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std::cout<< _currentImageStream.get() << " Toggle Looping On"<<std::endl;
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_currentImageStream->setLoopingMode( osg::ImageStream::LOOPING );
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}
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return true;
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}
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else if (ea.getKey()=='+')
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{
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double tm = _currentImageStream->getTimeMultiplier();
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tm += 0.1;
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_currentImageStream->setTimeMultiplier(tm);
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std::cout << _currentImageStream.get() << " Increase speed rate "<< _currentImageStream->getTimeMultiplier() << std::endl;
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return true;
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}
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else if (ea.getKey()=='-')
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{
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double tm = _currentImageStream->getTimeMultiplier();
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tm -= 0.1;
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_currentImageStream->setTimeMultiplier(tm);
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std::cout << _currentImageStream.get() << " Decrease speed rate "<< _currentImageStream->getTimeMultiplier() << std::endl;
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return true;
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}
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else if (ea.getKey()=='o')
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{
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std::cout<< _currentImageStream.get() << " Frame rate "<< _currentImageStream->getFrameRate() <<std::endl;
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return true;
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}
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return false;
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}
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default:
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return false;
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}
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return false;
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}
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void MovieEventHandler::getUsage(osg::ApplicationUsage& usage) const
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{
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usage.addKeyboardMouseBinding("p","Play/Pause current movie");
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usage.addKeyboardMouseBinding("r","Restart current movie");
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usage.addKeyboardMouseBinding("l","Toggle looping of current movie");
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usage.addKeyboardMouseBinding("+","Increase speed of current movie");
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usage.addKeyboardMouseBinding("-","Decrease speed of current movie");
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usage.addKeyboardMouseBinding("o","Display frame rate of current movie");
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usage.addKeyboardMouseBinding(">","Advance the current movie using seek");
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}
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static osgDB::DirectoryContents getSuitableFiles(osg::ArgumentParser& arguments)
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{
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osgDB::DirectoryContents files;
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for(int i=1; i<arguments.argc(); ++i)
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{
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if (arguments.isOption(i))
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continue;
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if (osgDB::fileType(arguments[i]) == osgDB::DIRECTORY)
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{
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const std::string& directory = arguments[i];
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osgDB::DirectoryContents dc = osgDB::getSortedDirectoryContents(directory);
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for(osgDB::DirectoryContents::iterator itr = dc.begin(); itr != dc.end(); ++itr)
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{
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std::string full_file_name = directory + "/" + (*itr);
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if (osgDB::fileType(full_file_name) != osgDB::DIRECTORY)
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{
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files.push_back(full_file_name);
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}
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}
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}
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else {
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files.push_back(arguments[i]);
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}
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}
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return files;
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}
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class MyDimensionsChangedCallback : public osg::Image::DimensionsChangedCallback {
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public:
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MyDimensionsChangedCallback(osg::Texture* tex, osg::Geometry* geo)
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: osg::Image::DimensionsChangedCallback()
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, _tex(tex)
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, _geo(geo)
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{
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}
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virtual void operator()(osg::Image* img)
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{
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if (img && _tex.valid() && _geo.valid())
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{
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float l(0), t(0);
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float r = (_tex->getTextureTarget() == GL_TEXTURE_2D) ? 1 : img->s();
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float b = (_tex->getTextureTarget() == GL_TEXTURE_2D) ? 1 : img->t();
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/*
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if (img->getOrigin() == osg::Image::TOP_LEFT)
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std::swap(t, b);
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*/
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osg::Vec2Array* tex_coords = dynamic_cast<osg::Vec2Array*>(_geo->getTexCoordArray(0));
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if (tex_coords) {
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(*tex_coords)[0].set(l,t);
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(*tex_coords)[1].set(l,b);
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(*tex_coords)[2].set(r,b);
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(*tex_coords)[3].set(r,t);
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tex_coords->dirty();
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_geo->dirtyDisplayList();
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}
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}
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}
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private:
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osg::observer_ptr<osg::Texture> _tex;
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osg::observer_ptr<osg::Geometry> _geo;
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};
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static osg::Node* readImageStream(const std::string& file_name, osg::Vec3& p, float desired_height, osgDB::Options* options)
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{
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osg::ref_ptr<osg::Object> obj = osgDB::readObjectFile(file_name, options);
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osg::ref_ptr<osg::Texture> tex = dynamic_cast<osg::Texture*>(obj.get());
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osg::Geometry* geo(NULL);
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float w(0);
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if (!tex)
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{
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osg::ref_ptr<osg::ImageStream> img_stream = dynamic_cast<osg::ImageStream*>(obj.get());
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// try readImageFile if readObjectFile failed
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if (!img_stream)
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{
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img_stream = dynamic_cast<osg::ImageStream*>(osgDB::readImageFile(file_name, options));
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}
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if (img_stream)
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{
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tex = new osg::Texture2D(img_stream.get());
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tex->setResizeNonPowerOfTwoHint(false);
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}
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}
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// create textured quad
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if(tex)
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{
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osg::Geode* geode = new osg::Geode();
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osg::ref_ptr<osg::ImageStream> img = dynamic_cast<osg::ImageStream*>(tex->getImage(0));
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if (img)
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{
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w = (img->t() > 0) ? img->s() * desired_height / img->t() : 0;
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osgText::Text* text = new osgText::Text();
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text->setFont("arial.ttf");
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text->setDataVariance(osg::Object::DYNAMIC);
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text->setUpdateCallback(new ImageStreamStateCallback(text, img.get()));
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text->setCharacterSize(24);
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text->setPosition(p + osg::Vec3(10,-10,10));
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text->setAxisAlignment(osgText::TextBase::XZ_PLANE);
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geode->addDrawable (text);
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}
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if (w == 0)
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{
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// hmm, imagestream with no width?
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w = desired_height * 16 / 9.0f;
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}
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float tex_s = (tex->getTextureTarget() == GL_TEXTURE_2D) ? 1 : img->s();
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float tex_t = (tex->getTextureTarget() == GL_TEXTURE_2D) ? 1 : img->t();
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if (img->getOrigin() == osg::Image::TOP_LEFT)
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geo = osg::createTexturedQuadGeometry(p, osg::Vec3(w, 0, 0), osg::Vec3(0, 0, desired_height), 0, tex_t, tex_s, 0);
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else
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geo = osg::createTexturedQuadGeometry(p, osg::Vec3(w, 0, 0), osg::Vec3(0, 0, desired_height), 0, 0, tex_s, tex_t);
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geode->addDrawable(geo);
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geo->getOrCreateStateSet()->setTextureAttributeAndModes(0, tex.get());
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osg::Vec4Array* colors = new osg::Vec4Array();
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colors->push_back(osg::Vec4(0.7, 0.7, 0.7, 1));
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geo->setColorArray(colors);
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geo->setColorBinding(osg::Geometry::BIND_OVERALL);
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p[0] += w + 10;
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img->addDimensionsChangedCallback(new MyDimensionsChangedCallback(tex.get(), geo));
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return geode;
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}
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else
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{
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std::cout << "could not read file from " << file_name << std::endl;
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return NULL;
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}
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return NULL;
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}
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class ReplaceTextureVisitor : public osg::NodeVisitor {
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public:
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ReplaceTextureVisitor(osg::Texture* tex)
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: osg::NodeVisitor(TRAVERSE_ALL_CHILDREN)
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, _tex(tex)
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{
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}
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virtual void apply(osg::Geode& geode)
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{
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apply(geode.getStateSet());
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for(unsigned int i = 0; i < geode.getNumDrawables(); ++i)
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{
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osg::Drawable* drawable = geode.getDrawable(i);
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apply(drawable->getStateSet());
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ImageStreamStateCallback* cb = dynamic_cast<ImageStreamStateCallback*>(drawable->getUpdateCallback());
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if (cb)
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cb->setImageStream(dynamic_cast<osg::ImageStream*>(_tex->getImage(0)));
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}
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osg::NodeVisitor::apply(geode);
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}
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void apply(osg::StateSet* ss)
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{
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if (ss && ss->getTextureAttribute(0, osg::StateAttribute::TEXTURE))
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ss->setTextureAttribute(0, _tex.get());
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}
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private:
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osg::ref_ptr<osg::Texture> _tex;
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};
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class SlideShowEventHandler : public osgGA::GUIEventHandler {
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public:
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SlideShowEventHandler(osg::Node* node, const osgDB::DirectoryContents& files,osgDB::ReaderWriter::Options* options)
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: osgGA::GUIEventHandler()
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, _node(node)
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, _files(files)
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, _options(options)
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, _currentFile(-1)
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{
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loadSlide(_currentFile);
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}
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bool handle(const osgGA::GUIEventAdapter& ea,osgGA::GUIActionAdapter& aa, osg::Object*, osg::NodeVisitor* nv)
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{
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switch(ea.getEventType())
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{
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case(osgGA::GUIEventAdapter::KEYDOWN):
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{
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if (ea.getKey() == osgGA::GUIEventAdapter::KEY_Left)
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loadSlide(_currentFile - 1);
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else if (ea.getKey() == osgGA::GUIEventAdapter::KEY_Right)
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loadSlide(_currentFile + 1);
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else
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return false;
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return true;
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}
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break;
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default:
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break;
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}
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return false;
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}
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private:
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void loadSlide(int new_ndx)
|
|
{
|
|
if (new_ndx == _currentFile)
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|
return;
|
|
|
|
_currentFile = new_ndx;
|
|
if (_currentFile < 0)
|
|
_currentFile = _files.size() - 1;
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|
else if (_currentFile >= static_cast<int>(_files.size()))
|
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_currentFile = 0;
|
|
|
|
osg::ref_ptr<osg::Object> obj = osgDB::readRefObjectFile(_files[_currentFile], _options.get());
|
|
osg::ref_ptr<osg::Texture> tex = dynamic_cast<osg::Texture*>(obj.get());
|
|
if (!tex) {
|
|
osg::ref_ptr<osg::ImageStream> stream = dynamic_cast<osg::ImageStream*>(obj.get());
|
|
if (!stream)
|
|
stream = dynamic_cast<osg::ImageStream*>(osgDB::readImageFile(_files[_currentFile], _options.get()));
|
|
|
|
if (stream)
|
|
{
|
|
tex = new osg::Texture2D(stream.get());
|
|
tex->setResizeNonPowerOfTwoHint(false);
|
|
}
|
|
}
|
|
if (tex) {
|
|
osg::ref_ptr<osg::ImageStream> stream = dynamic_cast<osg::ImageStream*>(tex->getImage(0));
|
|
if (stream)
|
|
stream->play();
|
|
ReplaceTextureVisitor v(tex.get());
|
|
_node->accept(v);
|
|
}
|
|
}
|
|
|
|
osg::ref_ptr<osg::Node> _node;
|
|
osgDB::DirectoryContents _files;
|
|
osg::ref_ptr<osgDB::ReaderWriter::Options> _options;
|
|
int _currentFile;
|
|
};
|
|
|
|
|
|
int main(int argc, char** argv)
|
|
{
|
|
/*
|
|
std::string plugin_to_use = "AVFoundation"; // "QTKit";
|
|
|
|
osgDB::Registry::instance()->addFileExtensionAlias("mov", plugin_to_use);
|
|
osgDB::Registry::instance()->addFileExtensionAlias("mp4", plugin_to_use);
|
|
osgDB::Registry::instance()->addFileExtensionAlias("m4v", plugin_to_use);
|
|
*/
|
|
|
|
// use an ArgumentParser object to manage the program arguments.
|
|
osg::ArgumentParser arguments(&argc,argv);
|
|
|
|
// set up the usage document, in case we need to print out how to use this program.
|
|
arguments.getApplicationUsage()->setApplicationName(arguments.getApplicationName());
|
|
arguments.getApplicationUsage()->setDescription(arguments.getApplicationName()+" example demonstrates the use of ImageStream for rendering movies as textures.");
|
|
arguments.getApplicationUsage()->setCommandLineUsage(arguments.getApplicationName()+" [options] filename ...");
|
|
arguments.getApplicationUsage()->addCommandLineOption("-h or --help","Display this information");
|
|
arguments.getApplicationUsage()->addCommandLineOption("--disableCoreVideo","disable CoreVideo (QTKit+AVFoundation plugin)");
|
|
arguments.getApplicationUsage()->addCommandLineOption("--disableMultiThreadedFrameDispatching","disable frame dispatching via multiple threads (QTKit+AVFoundation plugin)");
|
|
arguments.getApplicationUsage()->addCommandLineOption("--maxVideos [numVideos]","max videos to open from a folder");
|
|
arguments.getApplicationUsage()->addCommandLineOption("--slideShow","present movies in a slide-show");
|
|
|
|
unsigned int max_videos(10);
|
|
bool slide_show = false;
|
|
std::string options_str("");
|
|
|
|
if (arguments.find("--slideShow") > 0) {
|
|
slide_show = true;
|
|
}
|
|
|
|
if (arguments.find("--disableMultiThreadedFrameDispatching") > 0) {
|
|
options_str += " disableMultiThreadedFrameDispatching";
|
|
}
|
|
|
|
if (arguments.find("--disableCoreVideo") > 0) {
|
|
options_str += " disableCoreVideo";
|
|
}
|
|
|
|
if (int ndx = arguments.find("--numFrameDispatchThreads") > 0)
|
|
{
|
|
options_str += std::string(" numFrameDispatchThreads=") + arguments[ndx+1];
|
|
}
|
|
if (int ndx = arguments.find("--maxVideos") > 0)
|
|
{
|
|
if (arguments.isNumber(ndx+1)) max_videos = atoi(arguments[ndx+1]);
|
|
}
|
|
|
|
|
|
// construct the viewer.
|
|
osgViewer::Viewer viewer(arguments);
|
|
|
|
if (arguments.argc()<=1)
|
|
{
|
|
arguments.getApplicationUsage()->write(std::cout,osg::ApplicationUsage::COMMAND_LINE_OPTION);
|
|
return 1;
|
|
}
|
|
|
|
|
|
// if user request help write it out to cout.
|
|
if (arguments.read("-h") || arguments.read("--help"))
|
|
{
|
|
arguments.getApplicationUsage()->write(std::cout);
|
|
return 1;
|
|
}
|
|
|
|
|
|
osg::ref_ptr<osg::Group> group = new osg::Group;
|
|
|
|
osg::StateSet* stateset = group->getOrCreateStateSet();
|
|
stateset->setMode(GL_LIGHTING,osg::StateAttribute::OFF);
|
|
|
|
|
|
osg::Vec3 pos(0.0f,0.0f,0.0f);
|
|
static const float desired_height = 768.0f;
|
|
|
|
osgDB::DirectoryContents files = getSuitableFiles(arguments);
|
|
osgGA::GUIEventHandler* movie_event_handler(NULL);
|
|
|
|
osg::ref_ptr<osgDB::ReaderWriter::Options> options = new osgDB::ReaderWriter::Options(options_str);
|
|
|
|
if (slide_show)
|
|
{
|
|
osg::Node* node = readImageStream(files[0], pos, desired_height, options.get());
|
|
group->addChild(node);
|
|
movie_event_handler = new SlideShowEventHandler(node, files, options.get());
|
|
}
|
|
else
|
|
{
|
|
movie_event_handler = new MovieEventHandler();
|
|
|
|
unsigned int num_files_per_row = std::max(osg::round(sqrt(static_cast<double>(std::min(max_videos, static_cast<unsigned int>(files.size()))))), 1.0);
|
|
static const float new_row_at = num_files_per_row * desired_height * 16 / 9.0;
|
|
|
|
unsigned int num_videos = 0;
|
|
for(osgDB::DirectoryContents::iterator i = files.begin(); (i != files.end()) && (num_videos < max_videos); ++i)
|
|
{
|
|
osg::Node* node = readImageStream(*i, pos, desired_height, options.get());
|
|
if (node)
|
|
group->addChild(node);
|
|
|
|
if (pos[0] > new_row_at)
|
|
{
|
|
pos[0] = 0;
|
|
pos[2] += desired_height +10;
|
|
}
|
|
num_videos++;
|
|
}
|
|
}
|
|
|
|
|
|
// set the scene to render
|
|
viewer.setSceneData(group.get());
|
|
|
|
if (viewer.getSceneData()==0)
|
|
{
|
|
arguments.getApplicationUsage()->write(std::cout);
|
|
return 1;
|
|
}
|
|
|
|
|
|
viewer.addEventHandler( movie_event_handler );
|
|
viewer.addEventHandler( new osgViewer::StatsHandler );
|
|
viewer.addEventHandler( new osgViewer::ToggleSyncToVBlankHandler());
|
|
viewer.addEventHandler( new osgGA::StateSetManipulator( viewer.getCamera()->getOrCreateStateSet() ) );
|
|
viewer.addEventHandler( new osgViewer::WindowSizeHandler );
|
|
|
|
// add the record camera path handler
|
|
viewer.addEventHandler(new osgViewer::RecordCameraPathHandler);
|
|
|
|
// report any errors if they have occurred when parsing the program arguments.
|
|
if (arguments.errors())
|
|
{
|
|
arguments.writeErrorMessages(std::cout);
|
|
return 1;
|
|
}
|
|
|
|
// create the windows and run the threads.
|
|
return viewer.run();
|
|
}
|
|
|