Hi,
just two lines for documenting -p and --speed options for osgviewer.
Regards,
/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2010 Robert Osfield
*
* This application is open source and may be redistributed and/or modified
* freely and without restriction, both in commercial and non commercial applications,
* as long as this copyright notice is maintained.
*
* This application 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.
*/
#include <osgDB/ReadFile>
#include <osgUtil/Optimizer>
#include <osg/CoordinateSystemNode>
#include <osg/Switch>
#include <osgText/Text>
#include <osgViewer/Viewer>
#include <osgViewer/ViewerEventHandlers>
#include <osgGA/TrackballManipulator>
#include <osgGA/FlightManipulator>
#include <osgGA/DriveManipulator>
#include <osgGA/KeySwitchMatrixManipulator>
#include <osgGA/StateSetManipulator>
#include <osgGA/AnimationPathManipulator>
#include <osgGA/TerrainManipulator>
#include <osgGA/SphericalManipulator>
#include <iostream>
#include <osg/GLExtensions>
#ifndef GL_ARB_sync
#define GL_MAX_SERVER_WAIT_TIMEOUT 0x9111
#define GL_OBJECT_TYPE 0x9112
#define GL_SYNC_CONDITION 0x9113
#define GL_SYNC_STATUS 0x9114
#define GL_SYNC_FLAGS 0x9115
#define GL_SYNC_FENCE 0x9116
#define GL_SYNC_GPU_COMMANDS_COMPLETE 0x9117
#define GL_UNSIGNALED 0x9118
#define GL_SIGNALED 0x9119
#define GL_ALREADY_SIGNALED 0x911A
#define GL_TIMEOUT_EXPIRED 0x911B
#define GL_CONDITION_SATISFIED 0x911C
#define GL_WAIT_FAILED 0x911D
#define GL_SYNC_FLUSH_COMMANDS_BIT 0x00000001
#define GL_TIMEOUT_IGNORED 0xFFFFFFFFFFFFFFFFull
#endif
class MySwapBuffersCallback : public osg::GraphicsContext::SwapCallback
{
public:
MySwapBuffersCallback():
_extensionInitialized(false),
_glFenceSync(0),
_glIsSync(0),
_glDeleteSync(0),
_glClientWaitSync(0),
_glWaitSync(0),
_glGetInteger64v(0),
_glGetSynciv(0),
_previousSync(0)
{
OSG_NOTICE<<"Created Swap callback."<<std::endl;
}
void setUpExtensions()
{
_extensionInitialized = true;
osg::setGLExtensionFuncPtr(_glFenceSync, "glFenceSync");
osg::setGLExtensionFuncPtr(_glIsSync, "glIsSync");
osg::setGLExtensionFuncPtr(_glDeleteSync, "glDeleteSync");
osg::setGLExtensionFuncPtr(_glClientWaitSync, "glClientWaitSync");
osg::setGLExtensionFuncPtr(_glWaitSync, "glWaitSync");
osg::setGLExtensionFuncPtr(_glGetInteger64v, "glGetInteger64v");
osg::setGLExtensionFuncPtr(_glGetSynciv, "glGetSynciv");
}
virtual void swapBuffersImplementation(osg::GraphicsContext* gc)
{
// OSG_NOTICE<<"Before swap - place to do swap ready sync"<<std::endl;
gc->swapBuffersImplementation();
//glFinish();
if (!_extensionInitialized) setUpExtensions();
if (_glClientWaitSync)
{
if (_previousSync)
{
unsigned int num_seconds = 1;
GLuint64 timeout = num_seconds * ((GLuint64)1000 * 1000 * 1000);
_glClientWaitSync(_previousSync, 0, timeout);
_glDeleteSync(_previousSync);
}
_previousSync = _glFenceSync(GL_SYNC_GPU_COMMANDS_COMPLETE, 0);
}
//gc->getState()->checkGLErrors("after glWaitSync");
//OSG_NOTICE<<"After swap"<<std::endl;
}
#ifdef _WIN32
typedef __int64 GLint64;
typedef unsigned __int64 GLuint64;
#else
typedef int64_t GLint64;
typedef uint64_t GLuint64;
#endif
typedef struct __GLsync *GLsync;
typedef GLsync (GL_APIENTRY * PFNGLFENCESYNCPROC) (GLenum condition, GLbitfield flags);
typedef GLboolean (GL_APIENTRY * PFNGLISSYNCPROC) (GLsync sync);
typedef void (GL_APIENTRY * PFNGLDELETESYNCPROC) (GLsync sync);
typedef GLenum (GL_APIENTRY * PFNGLCLIENTWAITSYNCPROC) (GLsync sync, GLbitfield flags, GLuint64 timeout);
typedef void (GL_APIENTRY * PFNGLWAITSYNCPROC) (GLsync sync, GLbitfield flags, GLuint64 timeout);
typedef void (GL_APIENTRY * PFNGLGETINTEGER64VPROC) (GLenum pname, GLint64 *params);
typedef void (GL_APIENTRY * PFNGLGETSYNCIVPROC) (GLsync sync, GLenum pname, GLsizei bufSize, GLsizei *length, GLint *values);
bool _extensionInitialized;
PFNGLFENCESYNCPROC _glFenceSync;
PFNGLISSYNCPROC _glIsSync;
PFNGLDELETESYNCPROC _glDeleteSync;
PFNGLCLIENTWAITSYNCPROC _glClientWaitSync;
PFNGLWAITSYNCPROC _glWaitSync;
PFNGLGETINTEGER64VPROC _glGetInteger64v;
PFNGLGETSYNCIVPROC _glGetSynciv;
GLsync _previousSync;
};
int main(int argc, char** argv)
{
// use an ArgumentParser object to manage the program arguments.
osg::ArgumentParser arguments(&argc,argv);
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("--image <filename>","Load an image and render it on a quad");
arguments.getApplicationUsage()->addCommandLineOption("--dem <filename>","Load an image/DEM and render it on a HeightField");
arguments.getApplicationUsage()->addCommandLineOption("--login <url> <username> <password>","Provide authentication information for http file access.");
arguments.getApplicationUsage()->addCommandLineOption("-p <filename>","Play specified camera path animation file, previously saved with 'z' key.");
arguments.getApplicationUsage()->addCommandLineOption("--speed <factor>","Speed factor for animation playing (1 == normal speed).");
osgViewer::Viewer viewer(arguments);
unsigned int helpType = 0;
if ((helpType = arguments.readHelpType()))
{
arguments.getApplicationUsage()->write(std::cout, helpType);
return 1;
}
// report any errors if they have occurred when parsing the program arguments.
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;
}
std::string url, username, password;
while(arguments.read("--login",url, username, password))
{
if (!osgDB::Registry::instance()->getAuthenticationMap())
{
osgDB::Registry::instance()->setAuthenticationMap(new osgDB::AuthenticationMap);
osgDB::Registry::instance()->getAuthenticationMap()->addAuthenticationDetails(
url,
new osgDB::AuthenticationDetails(username, password)
);
}
}
// set up the camera manipulators.
{
osg::ref_ptr<osgGA::KeySwitchMatrixManipulator> keyswitchManipulator = new osgGA::KeySwitchMatrixManipulator;
keyswitchManipulator->addMatrixManipulator( '1', "Trackball", new osgGA::TrackballManipulator() );
keyswitchManipulator->addMatrixManipulator( '2', "Flight", new osgGA::FlightManipulator() );
keyswitchManipulator->addMatrixManipulator( '3', "Drive", new osgGA::DriveManipulator() );
keyswitchManipulator->addMatrixManipulator( '4', "Terrain", new osgGA::TerrainManipulator() );
keyswitchManipulator->addMatrixManipulator( '5', "Orbit", new osgGA::OrbitManipulator() );
keyswitchManipulator->addMatrixManipulator( '6', "FirstPerson", new osgGA::FirstPersonManipulator() );
keyswitchManipulator->addMatrixManipulator( '7', "Spherical", new osgGA::SphericalManipulator() );
std::string pathfile;
double animationSpeed = 1.0;
while(arguments.read("--speed",animationSpeed) ) {}
char keyForAnimationPath = '8';
while (arguments.read("-p",pathfile))
{
osgGA::AnimationPathManipulator* apm = new osgGA::AnimationPathManipulator(pathfile);
if (apm || !apm->valid())
{
apm->setTimeScale(animationSpeed);
unsigned int num = keyswitchManipulator->getNumMatrixManipulators();
keyswitchManipulator->addMatrixManipulator( keyForAnimationPath, "Path", apm );
keyswitchManipulator->selectMatrixManipulator(num);
++keyForAnimationPath;
}
}
viewer.setCameraManipulator( keyswitchManipulator.get() );
}
bool doArbSync = arguments.read("--sync");
// add the state manipulator
viewer.addEventHandler( new osgGA::StateSetManipulator(viewer.getCamera()->getOrCreateStateSet()) );
// add the thread model handler
viewer.addEventHandler(new osgViewer::ThreadingHandler);
// add the window size toggle handler
viewer.addEventHandler(new osgViewer::WindowSizeHandler);
// add the stats handler
viewer.addEventHandler(new osgViewer::StatsHandler);
// add the help handler
viewer.addEventHandler(new osgViewer::HelpHandler(arguments.getApplicationUsage()));
// add the record camera path handler
viewer.addEventHandler(new osgViewer::RecordCameraPathHandler);
// add the LOD Scale handler
viewer.addEventHandler(new osgViewer::LODScaleHandler);
// add the screen capture handler
viewer.addEventHandler(new osgViewer::ScreenCaptureHandler);
// load the data
osg::ref_ptr<osg::Node> loadedModel = osgDB::readNodeFiles(arguments);
if (!loadedModel)
{
std::cout << arguments.getApplicationName() <<": No data loaded" << std::endl;
return 1;
}
// any option left unread are converted into errors to write out later.
arguments.reportRemainingOptionsAsUnrecognized();
// report any errors if they have occurred when parsing the program arguments.
if (arguments.errors())
{
arguments.writeErrorMessages(std::cout);
return 1;
}
// optimize the scene graph, remove redundant nodes and state etc.
osgUtil::Optimizer optimizer;
optimizer.optimize(loadedModel.get());
viewer.setSceneData( loadedModel.get() );
viewer.realize();
if (doArbSync)
{
osgViewer::ViewerBase::Contexts contexts;
viewer.getContexts(contexts);
for(osgViewer::ViewerBase::Contexts::iterator itr = contexts.begin();
itr != contexts.end();
++itr)
{
(*itr)->setSwapCallback(new MySwapBuffersCallback);
}
}
return viewer.run();
}
--
Alberto
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