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Added handling of directory names in osgimagesequence commandline.

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From Stephan Huber, added support for controlling the ImageSequence seek position via mouse x position, toggled on/off via 'i' key.
This commit is contained in:
Robert Osfield 2012-09-12 16:35:12 +00:00
parent 5d5cf26138
commit 67abc66d8a
1 changed files with 122 additions and 5 deletions
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127
examples/osgimagesequence/osgimagesequence.cpp
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@ -29,6 +29,9 @@
#include <osgDB/Registry>
#include <osgDB/ReadFile>
#include <osgDB/WriteFile>
#include <osgDB/FileNameUtils>
#include <osgDB/FileUtils>
#include <osgViewer/Viewer>
#include <osgViewer/ViewerEventHandlers>
@ -36,6 +39,32 @@
#include <iostream>
static osgDB::DirectoryContents getSuitableFiles(osg::ArgumentParser& arguments)
{
osgDB::DirectoryContents files;
for(int i=1; i<arguments.argc(); ++i)
{
if (osgDB::fileType(arguments[i]) == osgDB::DIRECTORY)
{
const std::string& directory = arguments[i];
osgDB::DirectoryContents dc = osgDB::getSortedDirectoryContents(directory);
for(osgDB::DirectoryContents::iterator itr = dc.begin(); itr != dc.end(); ++itr)
{
std::string full_file_name = directory + "/" + (*itr);
std::string ext = osgDB::getLowerCaseFileExtension(full_file_name);
if ((ext == "jpg") || (ext == "png") || (ext == "gif") || (ext == "rgb") || (ext == "dds") )
{
files.push_back(full_file_name);
}
}
}
else {
files.push_back(arguments[i]);
}
}
return files;
}
//
@ -72,13 +101,17 @@ osg::StateSet* createState(osg::ArgumentParser& arguments)
double fps = 30.0;
while (arguments.read("--fps",fps)) {}
if (arguments.argc()>1)
osgDB::DirectoryContents files = getSuitableFiles(arguments);
if (!files.empty())
{
for(int i=1; i<arguments.argc(); ++i)
for(osgDB::DirectoryContents::iterator itr = files.begin();
itr != files.end();
++itr)
{
const std::string& filename = *itr;
if (preLoad)
{
osg::ref_ptr<osg::Image> image = osgDB::readImageFile(arguments[i]);
osg::ref_ptr<osg::Image> image = osgDB::readImageFile(filename);
if (image.valid())
{
imageSequence->addImage(image.get());
@ -86,10 +119,10 @@ osg::StateSet* createState(osg::ArgumentParser& arguments)
}
else
{
imageSequence->addImageFile(arguments[i]);
imageSequence->addImageFile(filename);
}
}
}
if (length>0.0)
{
@ -180,6 +213,17 @@ public:
virtual void getUsage(osg::ApplicationUsage& usage) const;
typedef std::vector< osg::observer_ptr<osg::ImageStream> > ImageStreamList;
struct ImageStreamPlaybackSpeedData {
double fps;
unsigned char* lastData;
double timeStamp, lastOutput;
ImageStreamPlaybackSpeedData() : fps(0), lastData(NULL), timeStamp(0), lastOutput(0) {}
};
typedef std::vector< ImageStreamPlaybackSpeedData > ImageStreamPlayBackSpeedList;
protected:
@ -244,6 +288,7 @@ protected:
bool _playToggle;
bool _trackMouse;
ImageStreamList _imageStreamList;
ImageStreamPlayBackSpeedList _imageStreamPlayBackSpeedList;
};
@ -257,6 +302,7 @@ void MovieEventHandler::set(osg::Node* node)
FindImageStreamsVisitor fisv(_imageStreamList);
node->accept(fisv);
}
_imageStreamPlayBackSpeedList.resize(_imageStreamList.size());
}
@ -264,6 +310,53 @@ bool MovieEventHandler::handle(const osgGA::GUIEventAdapter& ea,osgGA::GUIAction
{
switch(ea.getEventType())
{
case(osgGA::GUIEventAdapter::FRAME):
{
double t = ea.getTime();
bool printed(false);
ImageStreamPlayBackSpeedList::iterator fps_itr = _imageStreamPlayBackSpeedList.begin();
for(ImageStreamList::iterator itr=_imageStreamList.begin();
itr!=_imageStreamList.end();
++itr, ++fps_itr)
{
if (((*itr)->getStatus()==osg::ImageStream::PLAYING) && ((*itr)->data() != (*fps_itr).lastData))
{
ImageStreamPlaybackSpeedData& data(*fps_itr);
double dt = (data.timeStamp > 0) ? t - data.timeStamp : 1/60.0;
data.lastData = (*itr)->data();
data.fps = (*fps_itr).fps * 0.8 + 0.2 * (1/dt);
data.timeStamp = t;
if (t-data.lastOutput > 1)
{
std::cout << data.fps << " ";
data.lastOutput = t;
printed = true;
}
}
}
if (printed)
std::cout << std::endl;
}
break;
case(osgGA::GUIEventAdapter::MOVE):
{
if (_trackMouse)
{
for(ImageStreamList::iterator itr=_imageStreamList.begin();
itr!=_imageStreamList.end();
++itr)
{
double dt = (*itr)->getLength() * ((1.0+ea.getXnormalized()) / 2.0);
(*itr)->seek(dt);
std::cout << "seeking to " << dt << " length: " <<(*itr)->getLength() << std::endl;
}
}
return false;
}
case(osgGA::GUIEventAdapter::KEYDOWN):
{
if (ea.getKey()=='p')
@ -316,6 +409,27 @@ bool MovieEventHandler::handle(const osgGA::GUIEventAdapter& ea,osgGA::GUIAction
}
}
return true;
}
else if (ea.getKey() == 'i')
{
_trackMouse = !_trackMouse;
std::cout << "tracking mouse: " << (_trackMouse ? "ON" : "OFF") << std::endl;
for(ImageStreamList::iterator itr=_imageStreamList.begin();
itr!=_imageStreamList.end();
++itr)
{
if ((*itr)->getStatus()==osg::ImageStream::PLAYING)
{
(*itr)->pause();
}
else
{
(*itr)->play();
}
}
}
return false;
}
@ -323,10 +437,13 @@ bool MovieEventHandler::handle(const osgGA::GUIEventAdapter& ea,osgGA::GUIAction
default:
return false;
}
return false;
}
void MovieEventHandler::getUsage(osg::ApplicationUsage& usage) const
{
usage.addKeyboardMouseBinding("i","toggle interactive mode, scrub via mouse-move");
usage.addKeyboardMouseBinding("p","Play/Pause movie");
usage.addKeyboardMouseBinding("r","Restart movie");
usage.addKeyboardMouseBinding("l","Toggle looping of movie");