302 lines
11 KiB
C++
302 lines
11 KiB
C++
/* -*-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 <osgGA/Device>
|
|
|
|
#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).");
|
|
arguments.getApplicationUsage()->addCommandLineOption("--device <device-name>","add named device to the viewer");
|
|
|
|
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)
|
|
);
|
|
}
|
|
}
|
|
|
|
std::string device;
|
|
while(arguments.read("--device", device))
|
|
{
|
|
osg::ref_ptr<osgGA::Device> dev = osgDB::readFile<osgGA::Device>(device);
|
|
if (dev.valid())
|
|
{
|
|
viewer.addDevice(dev.get());
|
|
}
|
|
}
|
|
|
|
// 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();
|
|
|
|
}
|