407 lines
13 KiB
C++
407 lines
13 KiB
C++
// -*-c++-*-
|
|
|
|
#include <osgProducer/Viewer>
|
|
|
|
#include <osgDB/ReadFile>
|
|
|
|
#include <osg/Geode>
|
|
#include <osg/Geometry>
|
|
#include <osg/StateSet>
|
|
#include <osg/Material>
|
|
#include <osg/Texture2D>
|
|
#include <osg/TextureRectangle>
|
|
#include <osg/TexMat>
|
|
#include <osg/CullFace>
|
|
#include <osg/ImageStream>
|
|
|
|
#include <osgGA/TrackballManipulator>
|
|
|
|
osg::ImageStream* s_imageStream = 0;
|
|
class PostSwapFinishCallback : public Producer::Camera::Callback
|
|
{
|
|
public:
|
|
|
|
PostSwapFinishCallback() {}
|
|
|
|
virtual void operator()(const Producer::Camera& camera)
|
|
{
|
|
// osg::Timer_t start_tick = osg::Timer::instance()->tick();
|
|
|
|
osgProducer::OsgSceneHandler* sh = const_cast<osgProducer::OsgSceneHandler*>(dynamic_cast<const osgProducer::OsgSceneHandler*>(camera.getSceneHandler()));
|
|
|
|
if (s_imageStream && s_imageStream->getPixelBufferObject()) s_imageStream->getPixelBufferObject()->compileBuffer(*(sh->getSceneView()->getState()));
|
|
// glFinish();
|
|
|
|
//osg::notify(osg::NOTICE)<<"callback after PBO "<<osg::Timer::instance()->delta_m(start_tick,osg::Timer::instance()->tick())<<"ms"<<std::endl;
|
|
}
|
|
};
|
|
|
|
class MovieEventHandler : public osgGA::GUIEventHandler
|
|
{
|
|
public:
|
|
|
|
MovieEventHandler() {}
|
|
|
|
void set(osg::Node* node);
|
|
|
|
virtual void accept(osgGA::GUIEventHandlerVisitor& v) { v.visit(*this); }
|
|
|
|
virtual bool handle(const osgGA::GUIEventAdapter& ea,osgGA::GUIActionAdapter&);
|
|
|
|
virtual void getUsage(osg::ApplicationUsage& usage) const;
|
|
|
|
typedef std::vector< osg::ref_ptr<osg::ImageStream> > ImageStreamList;
|
|
|
|
protected:
|
|
|
|
virtual ~MovieEventHandler() {}
|
|
|
|
class FindImageStreamsVisitor : public osg::NodeVisitor
|
|
{
|
|
public:
|
|
FindImageStreamsVisitor(ImageStreamList& imageStreamList):
|
|
_imageStreamList(imageStreamList) {}
|
|
|
|
virtual void apply(osg::Geode& geode)
|
|
{
|
|
apply(geode.getStateSet());
|
|
|
|
for(unsigned int i=0;i<geode.getNumDrawables();++i)
|
|
{
|
|
apply(geode.getDrawable(i)->getStateSet());
|
|
}
|
|
|
|
traverse(geode);
|
|
}
|
|
|
|
virtual void apply(osg::Node& node)
|
|
{
|
|
apply(node.getStateSet());
|
|
traverse(node);
|
|
}
|
|
|
|
inline void apply(osg::StateSet* stateset)
|
|
{
|
|
if (!stateset) return;
|
|
|
|
osg::StateAttribute* attr = stateset->getTextureAttribute(0,osg::StateAttribute::TEXTURE);
|
|
if (attr)
|
|
{
|
|
osg::Texture2D* texture2D = dynamic_cast<osg::Texture2D*>(attr);
|
|
if (texture2D) apply(dynamic_cast<osg::ImageStream*>(texture2D->getImage()));
|
|
|
|
osg::TextureRectangle* textureRec = dynamic_cast<osg::TextureRectangle*>(attr);
|
|
if (textureRec) apply(dynamic_cast<osg::ImageStream*>(textureRec->getImage()));
|
|
}
|
|
}
|
|
|
|
inline void apply(osg::ImageStream* imagestream)
|
|
{
|
|
if (imagestream)
|
|
{
|
|
_imageStreamList.push_back(imagestream);
|
|
s_imageStream = imagestream;
|
|
}
|
|
}
|
|
|
|
ImageStreamList& _imageStreamList;
|
|
};
|
|
|
|
|
|
ImageStreamList _imageStreamList;
|
|
|
|
};
|
|
|
|
|
|
|
|
void MovieEventHandler::set(osg::Node* node)
|
|
{
|
|
_imageStreamList.clear();
|
|
if (node)
|
|
{
|
|
FindImageStreamsVisitor fisv(_imageStreamList);
|
|
node->accept(fisv);
|
|
}
|
|
}
|
|
|
|
|
|
bool MovieEventHandler::handle(const osgGA::GUIEventAdapter& ea,osgGA::GUIActionAdapter&)
|
|
{
|
|
switch(ea.getEventType())
|
|
{
|
|
case(osgGA::GUIEventAdapter::KEYDOWN):
|
|
{
|
|
if (ea.getKey()=='s')
|
|
{
|
|
for(ImageStreamList::iterator itr=_imageStreamList.begin();
|
|
itr!=_imageStreamList.end();
|
|
++itr)
|
|
{
|
|
std::cout<<"Play"<<std::endl;
|
|
(*itr)->play();
|
|
}
|
|
return true;
|
|
}
|
|
else if (ea.getKey()=='p')
|
|
{
|
|
for(ImageStreamList::iterator itr=_imageStreamList.begin();
|
|
itr!=_imageStreamList.end();
|
|
++itr)
|
|
{
|
|
std::cout<<"Pause"<<std::endl;
|
|
(*itr)->pause();
|
|
}
|
|
return true;
|
|
}
|
|
else if (ea.getKey()=='r')
|
|
{
|
|
for(ImageStreamList::iterator itr=_imageStreamList.begin();
|
|
itr!=_imageStreamList.end();
|
|
++itr)
|
|
{
|
|
std::cout<<"Restart"<<std::endl;
|
|
(*itr)->rewind();
|
|
(*itr)->play();
|
|
}
|
|
return true;
|
|
}
|
|
else if (ea.getKey()=='l')
|
|
{
|
|
for(ImageStreamList::iterator itr=_imageStreamList.begin();
|
|
itr!=_imageStreamList.end();
|
|
++itr)
|
|
{
|
|
if ( (*itr)->getLoopingMode() == osg::ImageStream::LOOPING)
|
|
{
|
|
std::cout<<"Toggle Looping Off"<<std::endl;
|
|
(*itr)->setLoopingMode( osg::ImageStream::NO_LOOPING );
|
|
}
|
|
else
|
|
{
|
|
std::cout<<"Toggle Looping On"<<std::endl;
|
|
(*itr)->setLoopingMode( osg::ImageStream::LOOPING );
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
default:
|
|
return false;
|
|
}
|
|
}
|
|
|
|
void MovieEventHandler::getUsage(osg::ApplicationUsage& usage) const
|
|
{
|
|
usage.addKeyboardMouseBinding("p","Pause movie");
|
|
usage.addKeyboardMouseBinding("s","Play movie");
|
|
usage.addKeyboardMouseBinding("r","Restart movie");
|
|
usage.addKeyboardMouseBinding("l","Toggle looping of movie");
|
|
}
|
|
|
|
|
|
osg::Geometry* myCreateTexturedQuadGeometry(const osg::Vec3& pos,float width,float height, osg::Image* image, bool useTextureRectangle)
|
|
{
|
|
if (useTextureRectangle)
|
|
{
|
|
osg::Geometry* pictureQuad = osg::createTexturedQuadGeometry(pos,
|
|
osg::Vec3(width,0.0f,0.0f),
|
|
osg::Vec3(0.0f,0.0f,height),
|
|
0.0f,image->t(), image->s(),0.0f);
|
|
|
|
pictureQuad->getOrCreateStateSet()->setTextureAttributeAndModes(0,
|
|
new osg::TextureRectangle(image),
|
|
osg::StateAttribute::ON);
|
|
|
|
return pictureQuad;
|
|
}
|
|
else
|
|
{
|
|
osg::Geometry* pictureQuad = osg::createTexturedQuadGeometry(pos,
|
|
osg::Vec3(width,0.0f,0.0f),
|
|
osg::Vec3(0.0f,0.0f,height),
|
|
0.0f,1.0f, 1.0f,0.0f);
|
|
|
|
osg::Texture2D* texture = new osg::Texture2D(image);
|
|
texture->setFilter(osg::Texture::MIN_FILTER,osg::Texture::LINEAR);
|
|
|
|
pictureQuad->getOrCreateStateSet()->setTextureAttributeAndModes(0,
|
|
texture,
|
|
osg::StateAttribute::ON);
|
|
|
|
return pictureQuad;
|
|
}
|
|
}
|
|
|
|
int main(int argc, char** argv)
|
|
{
|
|
// 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()+" is the standard OpenSceneGraph example which loads and visualises 3d models.");
|
|
arguments.getApplicationUsage()->setCommandLineUsage(arguments.getApplicationName()+" [options] filename ...");
|
|
arguments.getApplicationUsage()->addCommandLineOption("-h or --help","Display this information");
|
|
|
|
bool useTextureRectangle = true;
|
|
bool useShader = false;
|
|
|
|
// construct the viewer.
|
|
osgProducer::Viewer viewer(arguments);
|
|
|
|
while (arguments.read("--texture2D")) useTextureRectangle=false;
|
|
while (arguments.read("--shader")) useShader=true;
|
|
|
|
// set up the value with sensible default event handlers.
|
|
viewer.setUpViewer(osgProducer::Viewer::STANDARD_SETTINGS);
|
|
|
|
// register the handler to add keyboard and mosue handling.
|
|
MovieEventHandler* meh = new MovieEventHandler();
|
|
viewer.getEventHandlerList().push_front(meh);
|
|
|
|
|
|
// get details on keyboard and mouse bindings used by the viewer.
|
|
viewer.getUsage(*arguments.getApplicationUsage());
|
|
|
|
// 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::Geode> geode = new osg::Geode;
|
|
osg::Vec3 pos(0.0f,0.0f,0.0f);
|
|
|
|
osg::StateSet* stateset = geode->getOrCreateStateSet();
|
|
stateset->setMode(GL_LIGHTING,osg::StateAttribute::OFF);
|
|
|
|
if (useShader)
|
|
{
|
|
//useTextureRectangle = false;
|
|
|
|
static const char *shaderSourceTextureRec = {
|
|
"uniform vec4 cutoff_color;\n"
|
|
"uniform samplerRect movie_texture;\n"
|
|
"void main(void)\n"
|
|
"{\n"
|
|
" vec4 texture_color = textureRect(movie_texture, gl_TexCoord[0]); \n"
|
|
" if (all(lessThanEqual(texture_color,cutoff_color))) discard; \n"
|
|
" gl_FragColor = texture_color;\n"
|
|
"}\n"
|
|
};
|
|
|
|
static const char *shaderSourceTexture2D = {
|
|
"uniform vec4 cutoff_color;\n"
|
|
"uniform sampler2D movie_texture;\n"
|
|
"void main(void)\n"
|
|
"{\n"
|
|
" vec4 texture_color = texture2D(movie_texture, gl_TexCoord[0]); \n"
|
|
" if (all(lessThanEqual(texture_color,cutoff_color))) discard; \n"
|
|
" gl_FragColor = texture_color;\n"
|
|
"}\n"
|
|
};
|
|
|
|
osg::Program* program = new osg::Program;
|
|
|
|
program->addShader(new osg::Shader(osg::Shader::FRAGMENT,
|
|
useTextureRectangle ? shaderSourceTextureRec : shaderSourceTexture2D));
|
|
|
|
stateset->addUniform(new osg::Uniform("cutoff_color",osg::Vec4(0.1f,0.1f,0.1f,1.0f)));
|
|
stateset->addUniform(new osg::Uniform("movie_texture",0));
|
|
|
|
stateset->setAttribute(program);
|
|
|
|
}
|
|
|
|
|
|
for(int i=1;i<arguments.argc();++i)
|
|
{
|
|
if (arguments.isString(i))
|
|
{
|
|
osg::Image* image = osgDB::readImageFile(arguments[i]);
|
|
osg::ImageStream* imagestream = dynamic_cast<osg::ImageStream*>(image);
|
|
if (imagestream) imagestream->play();
|
|
|
|
if (image)
|
|
{
|
|
geode->addDrawable(myCreateTexturedQuadGeometry(pos,image->s(),image->t(),image, useTextureRectangle));
|
|
|
|
pos.z() += image->t()*1.5f;
|
|
}
|
|
else
|
|
{
|
|
std::cout<<"Unable to read file "<<arguments[i]<<std::endl;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (geode->getNumDrawables()==0)
|
|
{
|
|
// nothing loaded.
|
|
return 1;
|
|
}
|
|
|
|
// pass the model to the MovieEventHandler so it can pick out ImageStream's to manipulate.
|
|
meh->set(geode.get());
|
|
|
|
// report any errors if they have occured when parsing the program aguments.
|
|
if (arguments.errors())
|
|
{
|
|
arguments.writeErrorMessages(std::cout);
|
|
return 1;
|
|
}
|
|
|
|
if (arguments.argc()<=1)
|
|
{
|
|
arguments.getApplicationUsage()->write(std::cout,osg::ApplicationUsage::COMMAND_LINE_OPTION);
|
|
return 1;
|
|
}
|
|
|
|
|
|
// any option left unread are converted into errors to write out later.
|
|
arguments.reportRemainingOptionsAsUnrecognized();
|
|
|
|
// report any errors if they have occured when parsing the program aguments.
|
|
if (arguments.errors())
|
|
{
|
|
arguments.writeErrorMessages(std::cout);
|
|
}
|
|
/*
|
|
// set up a post swap callback to flush deleted GL objects and compile new GL objects
|
|
for(unsigned int cameraNum=0;cameraNum<viewer.getNumberOfCameras();++cameraNum)
|
|
{
|
|
Producer::Camera* camera=viewer.getCamera(cameraNum);
|
|
camera->addPostSwapCallback(new PostSwapFinishCallback());
|
|
}
|
|
*/
|
|
// set the scene to render
|
|
viewer.setSceneData(geode.get());
|
|
|
|
// create the windows and run the threads.
|
|
viewer.realize();
|
|
|
|
while( !viewer.done() )
|
|
{
|
|
// wait for all cull and draw threads to complete.
|
|
viewer.sync();
|
|
|
|
// update the scene by traversing it with the the update visitor which will
|
|
// call all node update callbacks and animations.
|
|
viewer.update();
|
|
|
|
// fire off the cull and draw traversals of the scene.
|
|
viewer.frame();
|
|
|
|
}
|
|
|
|
// wait for all cull and draw threads to complete before exit.
|
|
viewer.sync();
|
|
|
|
return 0;
|
|
|
|
|
|
}
|