1807 lines
59 KiB
C++
1807 lines
59 KiB
C++
/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2006 Robert Osfield
|
|
*
|
|
* This library is open source and may be redistributed and/or modified under
|
|
* the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or
|
|
* (at your option) any later version. The full license is in LICENSE file
|
|
* included with this distribution, and on the openscenegraph.org website.
|
|
*
|
|
* This library 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. See the
|
|
* OpenSceneGraph Public License for more details.
|
|
*/
|
|
|
|
#include <osg/GLExtensions>
|
|
#include <osg/DeleteHandler>
|
|
#include <osgUtil/GLObjectsVisitor>
|
|
#include <osgGA/TrackballManipulator>
|
|
#include <osgViewer/Viewer>
|
|
|
|
#include <osg/io_utils>
|
|
|
|
using namespace osgViewer;
|
|
|
|
|
|
class ViewerQuerySupport
|
|
{
|
|
public:
|
|
ViewerQuerySupport(osg::Timer_t startTick):
|
|
_startTick(startTick),
|
|
_initialized(false),
|
|
_timerQuerySupported(false),
|
|
_extensions(0),
|
|
_previousQueryTime(0.0)
|
|
{
|
|
}
|
|
|
|
typedef std::pair<GLuint, int> QueryFrameNumberPair;
|
|
typedef std::list<QueryFrameNumberPair> QueryFrameNumberList;
|
|
typedef std::vector<GLuint> QueryList;
|
|
|
|
inline void checkQuery(osg::Stats* stats)
|
|
{
|
|
for(QueryFrameNumberList::iterator itr = _queryFrameNumberList.begin();
|
|
itr != _queryFrameNumberList.end();
|
|
)
|
|
{
|
|
GLuint query = itr->first;
|
|
GLint available = 0;
|
|
_extensions->glGetQueryObjectiv(query, GL_QUERY_RESULT_AVAILABLE, &available);
|
|
if (available)
|
|
{
|
|
GLuint64EXT timeElapsed = 0;
|
|
_extensions->glGetQueryObjectui64v(query, GL_QUERY_RESULT, &timeElapsed);
|
|
|
|
double timeElapsedSeconds = double(timeElapsed)*1e-9;
|
|
double currentTime = osg::Timer::instance()->delta_s(_startTick, osg::Timer::instance()->tick());
|
|
double estimatedEndTime = (_previousQueryTime + currentTime) * 0.5;
|
|
double estimatedBeginTime = estimatedEndTime - timeElapsedSeconds;
|
|
|
|
stats->setAttribute(itr->second, "GPU draw begin time", estimatedBeginTime);
|
|
stats->setAttribute(itr->second, "GPU draw end time", estimatedEndTime);
|
|
stats->setAttribute(itr->second, "GPU draw time taken", timeElapsedSeconds);
|
|
|
|
|
|
itr = _queryFrameNumberList.erase(itr);
|
|
_availableQueryObjects.push_back(query);
|
|
}
|
|
else
|
|
{
|
|
++itr;
|
|
}
|
|
|
|
}
|
|
_previousQueryTime = osg::Timer::instance()->delta_s(_startTick, osg::Timer::instance()->tick());
|
|
}
|
|
|
|
inline GLuint createQueryObject()
|
|
{
|
|
if (_availableQueryObjects.empty())
|
|
{
|
|
GLuint query;
|
|
_extensions->glGenQueries(1, &query);
|
|
return query;
|
|
}
|
|
else
|
|
{
|
|
GLuint query = _availableQueryObjects.back();
|
|
_availableQueryObjects.pop_back();
|
|
return query;
|
|
}
|
|
}
|
|
|
|
inline void beginQuery(int frameNumber)
|
|
{
|
|
GLuint query = createQueryObject();
|
|
_extensions->glBeginQuery(GL_TIME_ELAPSED, query);
|
|
_queryFrameNumberList.push_back(QueryFrameNumberPair(query, frameNumber));
|
|
}
|
|
|
|
inline void endQuery()
|
|
{
|
|
_extensions->glEndQuery(GL_TIME_ELAPSED);
|
|
}
|
|
|
|
void initialize(osg::State* state)
|
|
{
|
|
if (_initialized) return;
|
|
|
|
_initialized = true;
|
|
_extensions = osg::Drawable::getExtensions(state->getContextID(),true);
|
|
_timerQuerySupported = _extensions && _extensions->isTimerQuerySupported();
|
|
_previousQueryTime = osg::Timer::instance()->delta_s(_startTick, osg::Timer::instance()->tick());
|
|
}
|
|
|
|
osg::Timer_t _startTick;
|
|
bool _initialized;
|
|
bool _timerQuerySupported;
|
|
const osg::Drawable::Extensions* _extensions;
|
|
QueryFrameNumberList _queryFrameNumberList;
|
|
QueryList _availableQueryObjects;
|
|
double _previousQueryTime;
|
|
|
|
};
|
|
|
|
|
|
// Draw operation, that does a draw on the scene graph.
|
|
struct ViewerRenderingOperation : public osg::Operation, public ViewerQuerySupport
|
|
{
|
|
ViewerRenderingOperation(osgUtil::SceneView* sceneView, osgDB::DatabasePager* databasePager, osg::Timer_t startTick):
|
|
osg::Operation("Render",true),
|
|
ViewerQuerySupport(startTick),
|
|
_sceneView(sceneView),
|
|
_databasePager(databasePager)
|
|
{
|
|
_sceneView->getCullVisitor()->setDatabaseRequestHandler(_databasePager.get());
|
|
}
|
|
|
|
virtual void operator () (osg::Object*)
|
|
{
|
|
if (!_sceneView) return;
|
|
|
|
// osg::notify(osg::NOTICE)<<"RenderingOperation"<<std::endl;
|
|
|
|
osg::Stats* stats = _sceneView->getCamera()->getStats();
|
|
osg::State* state = _sceneView->getState();
|
|
const osg::FrameStamp* fs = state->getFrameStamp();
|
|
int frameNumber = fs ? fs->getFrameNumber() : 0;
|
|
|
|
if (!_initialized)
|
|
{
|
|
initialize(state);
|
|
}
|
|
|
|
bool aquireGPUStats = stats && _timerQuerySupported && stats->collectStats("gpu");
|
|
|
|
if (aquireGPUStats)
|
|
{
|
|
checkQuery(stats);
|
|
}
|
|
|
|
// do cull taversal
|
|
osg::Timer_t beforeCullTick = osg::Timer::instance()->tick();
|
|
_sceneView->cull();
|
|
osg::Timer_t afterCullTick = osg::Timer::instance()->tick();
|
|
|
|
#if 0
|
|
if (_sceneView->getDynamicObjectCount()==0 && state->getDynamicObjectRenderingCompletedCallback())
|
|
{
|
|
osg::notify(osg::NOTICE)<<"Completed in ViewerRenderingOperation"<<std::endl;
|
|
state->getDynamicObjectRenderingCompletedCallback()->completed(state);
|
|
}
|
|
#endif
|
|
|
|
state->setDynamicObjectCount(_sceneView->getDynamicObjectCount());
|
|
|
|
// do draw traveral
|
|
if (aquireGPUStats)
|
|
{
|
|
checkQuery(stats);
|
|
beginQuery(frameNumber);
|
|
}
|
|
|
|
_sceneView->draw();
|
|
|
|
double availableTime = 0.004; // 4 ms
|
|
if (_databasePager.valid())
|
|
{
|
|
_databasePager->compileGLObjects(*(_sceneView->getState()), availableTime);
|
|
}
|
|
_sceneView->flushDeletedGLObjects(availableTime);
|
|
|
|
if (aquireGPUStats)
|
|
{
|
|
endQuery();
|
|
checkQuery(stats);
|
|
}
|
|
|
|
osg::Timer_t afterDrawTick = osg::Timer::instance()->tick();
|
|
|
|
if (stats && stats->collectStats("rendering"))
|
|
{
|
|
stats->setAttribute(frameNumber, "Cull traversal begin time", osg::Timer::instance()->delta_s(_startTick, beforeCullTick));
|
|
stats->setAttribute(frameNumber, "Cull traversal end time", osg::Timer::instance()->delta_s(_startTick, afterCullTick));
|
|
stats->setAttribute(frameNumber, "Cull traversal time taken", osg::Timer::instance()->delta_s(beforeCullTick, afterCullTick));
|
|
|
|
stats->setAttribute(frameNumber, "Draw traversal begin time", osg::Timer::instance()->delta_s(_startTick, afterCullTick));
|
|
stats->setAttribute(frameNumber, "Draw traversal end time", osg::Timer::instance()->delta_s(_startTick, afterDrawTick));
|
|
stats->setAttribute(frameNumber, "Draw traversal time taken", osg::Timer::instance()->delta_s(afterCullTick, afterDrawTick));
|
|
}
|
|
|
|
}
|
|
|
|
osg::observer_ptr<osgUtil::SceneView> _sceneView;
|
|
osg::observer_ptr<osgDB::DatabasePager> _databasePager;
|
|
|
|
};
|
|
|
|
|
|
// Draw operation, that does a draw on the scene graph.
|
|
struct ViewerDoubleBufferedRenderingOperation : public osg::Operation, public ViewerQuerySupport
|
|
{
|
|
ViewerDoubleBufferedRenderingOperation(bool graphicsThreadDoesCull, osgUtil::SceneView* sv0, osgUtil::SceneView* sv1, osgDB::DatabasePager* databasePager, osg::Timer_t startTick):
|
|
osg::Operation("Render",true),
|
|
ViewerQuerySupport(startTick),
|
|
_graphicsThreadDoesCull(graphicsThreadDoesCull),
|
|
_done(false),
|
|
_databasePager(databasePager)
|
|
{
|
|
_sceneView[0] = sv0;
|
|
_sceneView[0]->getCullVisitor()->setDatabaseRequestHandler(_databasePager.get());
|
|
|
|
_sceneView[1] = sv1;
|
|
_sceneView[1]->getCullVisitor()->setDatabaseRequestHandler(_databasePager.get());
|
|
|
|
_currentCull = 0;
|
|
_currentDraw = 0;
|
|
|
|
// lock the mutex for the current cull SceneView to
|
|
// prevent the draw traversal from reading from it before the cull traversal has been completed.
|
|
if (!_graphicsThreadDoesCull) _mutex[_currentCull].lock();
|
|
|
|
// osg::notify(osg::NOTICE)<<"constructed"<<std::endl;
|
|
}
|
|
|
|
void setGraphicsThreadDoesCull(bool flag)
|
|
{
|
|
if (_graphicsThreadDoesCull==flag) return;
|
|
|
|
_graphicsThreadDoesCull = flag;
|
|
|
|
_currentCull = 0;
|
|
_currentDraw = 0;
|
|
|
|
if (_graphicsThreadDoesCull)
|
|
{
|
|
// need to disable any locks held by the cull
|
|
_mutex[0].unlock();
|
|
_mutex[1].unlock();
|
|
}
|
|
else
|
|
{
|
|
// need to set a lock for cull
|
|
_mutex[_currentCull].lock();
|
|
}
|
|
}
|
|
|
|
bool getGraphicsThreadDoesCull() const { return _graphicsThreadDoesCull; }
|
|
|
|
void cull()
|
|
{
|
|
// osg::notify(osg::NOTICE)<<"cull()"<<std::endl;
|
|
|
|
if (_done || _graphicsThreadDoesCull) return;
|
|
|
|
// note we assume lock has already been aquired.
|
|
osgUtil::SceneView* sceneView = _sceneView[_currentCull].get();
|
|
|
|
if (sceneView)
|
|
{
|
|
// osg::notify(osg::NOTICE)<<"Culling buffer "<<_currentCull<<std::endl;
|
|
|
|
osg::Stats* stats = sceneView->getCamera()->getStats();
|
|
osg::State* state = sceneView->getState();
|
|
const osg::FrameStamp* fs = state->getFrameStamp();
|
|
int frameNumber = fs ? fs->getFrameNumber() : 0;
|
|
|
|
_frameNumber[_currentCull] = frameNumber;
|
|
|
|
// do cull taversal
|
|
osg::Timer_t beforeCullTick = osg::Timer::instance()->tick();
|
|
sceneView->cull();
|
|
osg::Timer_t afterCullTick = osg::Timer::instance()->tick();
|
|
|
|
#if 0
|
|
if (sceneView->getDynamicObjectCount()==0 && state->getDynamicObjectRenderingCompletedCallback())
|
|
{
|
|
// osg::notify(osg::NOTICE)<<"Completed in cull"<<std::endl;
|
|
state->getDynamicObjectRenderingCompletedCallback()->completed(state);
|
|
}
|
|
#endif
|
|
if (stats && stats->collectStats("rendering"))
|
|
{
|
|
stats->setAttribute(frameNumber, "Cull traversal begin time", osg::Timer::instance()->delta_s(_startTick, beforeCullTick));
|
|
stats->setAttribute(frameNumber, "Cull traversal end time", osg::Timer::instance()->delta_s(_startTick, afterCullTick));
|
|
stats->setAttribute(frameNumber, "Cull traversal time taken", osg::Timer::instance()->delta_s(beforeCullTick, afterCullTick));
|
|
}
|
|
}
|
|
|
|
|
|
// relase the mutex associated with this cull traversal, let the draw commense.
|
|
_mutex[_currentCull].unlock();
|
|
|
|
// swap which SceneView we need to do cull traversal on next.
|
|
_currentCull = 1 - _currentCull;
|
|
|
|
// aquire the lock for it for the new cull traversal
|
|
_mutex[_currentCull].lock();
|
|
}
|
|
|
|
void draw()
|
|
{
|
|
// osg::notify(osg::NOTICE)<<"draw()"<<std::endl;
|
|
|
|
osgUtil::SceneView* sceneView = _sceneView[_currentDraw].get();
|
|
|
|
if (sceneView || _done)
|
|
{
|
|
OpenThreads::ScopedLock<OpenThreads::Mutex> lock(_mutex[_currentDraw]);
|
|
|
|
// osg::notify(osg::NOTICE)<<"Drawing buffer "<<_currentDraw<<std::endl;
|
|
|
|
if (_done)
|
|
{
|
|
osg::notify(osg::INFO)<<"ViewerDoubleBufferedRenderingOperation::release() causing draw to exit"<<std::endl;
|
|
return;
|
|
}
|
|
|
|
if (_graphicsThreadDoesCull)
|
|
{
|
|
osg::notify(osg::INFO)<<"ViewerDoubleBufferedRenderingOperation::draw() completing early due to change in _graphicsThreadDoesCull flag."<<std::endl;
|
|
return;
|
|
}
|
|
|
|
// osg::notify(osg::NOTICE)<<"RenderingOperation"<<std::endl;
|
|
|
|
osg::Stats* stats = sceneView->getCamera()->getStats();
|
|
osg::State* state = sceneView->getState();
|
|
int frameNumber = _frameNumber[_currentDraw];
|
|
|
|
if (!_initialized)
|
|
{
|
|
initialize(state);
|
|
}
|
|
|
|
state->setDynamicObjectCount(sceneView->getDynamicObjectCount());
|
|
|
|
if (sceneView->getDynamicObjectCount()==0 && state->getDynamicObjectRenderingCompletedCallback())
|
|
{
|
|
// osg::notify(osg::NOTICE)<<"Completed in cull"<<std::endl;
|
|
state->getDynamicObjectRenderingCompletedCallback()->completed(state);
|
|
}
|
|
|
|
osg::Timer_t beforeDrawTick = osg::Timer::instance()->tick();
|
|
|
|
bool aquireGPUStats = stats && _timerQuerySupported && stats->collectStats("gpu");
|
|
|
|
if (aquireGPUStats)
|
|
{
|
|
checkQuery(stats);
|
|
}
|
|
|
|
// do draw traveral
|
|
if (aquireGPUStats)
|
|
{
|
|
checkQuery(stats);
|
|
beginQuery(frameNumber);
|
|
}
|
|
|
|
sceneView->draw();
|
|
|
|
double availableTime = 0.004; // 4 ms
|
|
if (_databasePager.valid())
|
|
{
|
|
_databasePager->compileGLObjects(*(sceneView->getState()), availableTime);
|
|
}
|
|
|
|
sceneView->flushDeletedGLObjects(availableTime);
|
|
|
|
if (aquireGPUStats)
|
|
{
|
|
endQuery();
|
|
checkQuery(stats);
|
|
}
|
|
|
|
glFlush();
|
|
|
|
|
|
osg::Timer_t afterDrawTick = osg::Timer::instance()->tick();
|
|
|
|
if (stats && stats->collectStats("rendering"))
|
|
{
|
|
stats->setAttribute(frameNumber, "Draw traversal begin time", osg::Timer::instance()->delta_s(_startTick, beforeDrawTick));
|
|
stats->setAttribute(frameNumber, "Draw traversal end time", osg::Timer::instance()->delta_s(_startTick, afterDrawTick));
|
|
stats->setAttribute(frameNumber, "Draw traversal time taken", osg::Timer::instance()->delta_s(beforeDrawTick, afterDrawTick));
|
|
}
|
|
}
|
|
|
|
_currentDraw = 1-_currentDraw;
|
|
|
|
}
|
|
|
|
void cull_draw()
|
|
{
|
|
osgUtil::SceneView* sceneView = _sceneView[_currentDraw].get();
|
|
if (!sceneView || _done) return;
|
|
|
|
OpenThreads::ScopedLock<OpenThreads::Mutex> lock(_mutex[_currentDraw]);
|
|
|
|
if (_done)
|
|
{
|
|
osg::notify(osg::INFO)<<"ViewerDoubleBufferedRenderingOperation::release() causing cull_draw to exit"<<std::endl;
|
|
return;
|
|
}
|
|
|
|
// osg::notify(osg::NOTICE)<<"RenderingOperation"<<std::endl;
|
|
|
|
osg::Stats* stats = sceneView->getCamera()->getStats();
|
|
osg::State* state = sceneView->getState();
|
|
const osg::FrameStamp* fs = state->getFrameStamp();
|
|
int frameNumber = fs ? fs->getFrameNumber() : 0;
|
|
|
|
if (!_initialized)
|
|
{
|
|
initialize(state);
|
|
}
|
|
|
|
bool aquireGPUStats = stats && _timerQuerySupported && stats->collectStats("gpu");
|
|
|
|
if (aquireGPUStats)
|
|
{
|
|
checkQuery(stats);
|
|
}
|
|
|
|
// do cull taversal
|
|
osg::Timer_t beforeCullTick = osg::Timer::instance()->tick();
|
|
sceneView->cull();
|
|
osg::Timer_t afterCullTick = osg::Timer::instance()->tick();
|
|
|
|
if (state->getDynamicObjectCount()==0 && state->getDynamicObjectRenderingCompletedCallback())
|
|
{
|
|
state->getDynamicObjectRenderingCompletedCallback()->completed(state);
|
|
}
|
|
|
|
// do draw traveral
|
|
if (aquireGPUStats)
|
|
{
|
|
checkQuery(stats);
|
|
beginQuery(frameNumber);
|
|
}
|
|
|
|
sceneView->draw();
|
|
|
|
double availableTime = 0.004; // 4 ms
|
|
if (_databasePager.valid())
|
|
{
|
|
_databasePager->compileGLObjects(*(sceneView->getState()), availableTime);
|
|
}
|
|
sceneView->flushDeletedGLObjects(availableTime);
|
|
|
|
if (aquireGPUStats)
|
|
{
|
|
endQuery();
|
|
checkQuery(stats);
|
|
}
|
|
|
|
osg::Timer_t afterDrawTick = osg::Timer::instance()->tick();
|
|
|
|
if (stats && stats->collectStats("rendering"))
|
|
{
|
|
stats->setAttribute(frameNumber, "Cull traversal begin time", osg::Timer::instance()->delta_s(_startTick, beforeCullTick));
|
|
stats->setAttribute(frameNumber, "Cull traversal end time", osg::Timer::instance()->delta_s(_startTick, afterCullTick));
|
|
stats->setAttribute(frameNumber, "Cull traversal time taken", osg::Timer::instance()->delta_s(beforeCullTick, afterCullTick));
|
|
|
|
stats->setAttribute(frameNumber, "Draw traversal begin time", osg::Timer::instance()->delta_s(_startTick, afterCullTick));
|
|
stats->setAttribute(frameNumber, "Draw traversal end time", osg::Timer::instance()->delta_s(_startTick, afterDrawTick));
|
|
stats->setAttribute(frameNumber, "Draw traversal time taken", osg::Timer::instance()->delta_s(afterCullTick, afterDrawTick));
|
|
}
|
|
}
|
|
|
|
virtual void operator () (osg::Object* object)
|
|
{
|
|
osg::GraphicsContext* context = dynamic_cast<osg::GraphicsContext*>(object);
|
|
if (!context) return;
|
|
|
|
//osg::notify(osg::NOTICE)<<"GraphicsCall "<<std::endl;
|
|
// if (_done) return;
|
|
|
|
if (_graphicsThreadDoesCull)
|
|
{
|
|
cull_draw();
|
|
}
|
|
else
|
|
{
|
|
draw();
|
|
}
|
|
}
|
|
|
|
virtual void release()
|
|
{
|
|
osg::notify(osg::INFO)<<"ViewerDoubleBufferedRenderingOperation::release()"<<std::endl;
|
|
_done = true;
|
|
_mutex[0].unlock();
|
|
_mutex[1].unlock();
|
|
}
|
|
|
|
bool _graphicsThreadDoesCull;
|
|
bool _done;
|
|
unsigned int _currentCull;
|
|
unsigned int _currentDraw;
|
|
|
|
OpenThreads::Mutex _mutex[2];
|
|
osg::observer_ptr<osgUtil::SceneView> _sceneView[2];
|
|
int _frameNumber[2];
|
|
osg::observer_ptr<osgDB::DatabasePager> _databasePager;
|
|
|
|
|
|
};
|
|
|
|
|
|
Viewer::Viewer():
|
|
_firstFrame(true),
|
|
_done(false),
|
|
_keyEventSetsDone(osgGA::GUIEventAdapter::KEY_Escape),
|
|
_quitEventSetsDone(true),
|
|
// _threadingModel(SingleThreaded),
|
|
_threadingModel(ThreadPerContext),
|
|
// _threadingModel(ThreadPerCamera),
|
|
_threadsRunning(false),
|
|
_useMainThreadForRenderingTraversal(false),
|
|
_endBarrierPosition(AfterSwapBuffers),
|
|
_numThreadsOnBarrier(0)
|
|
{
|
|
_frameStamp = new osg::FrameStamp;
|
|
_frameStamp->setFrameNumber(0);
|
|
_frameStamp->setReferenceTime(0);
|
|
_frameStamp->setSimulationTime(0);
|
|
|
|
_eventVisitor = new osgGA::EventVisitor;
|
|
_eventVisitor->setActionAdapter(this);
|
|
|
|
setStats(new osg::Stats("Viewer"));
|
|
|
|
osg::Referenced::setDeleteHandler(new osg::DeleteHandler(2));
|
|
}
|
|
|
|
Viewer::~Viewer()
|
|
{
|
|
//osg::notify(osg::NOTICE)<<"Viewer::~Viewer()"<<std::endl;
|
|
|
|
stopThreading();
|
|
|
|
if (_scene.valid() && _scene->getDatabasePager())
|
|
{
|
|
_scene->getDatabasePager()->cancel();
|
|
_scene->setDatabasePager(0);
|
|
}
|
|
|
|
Contexts contexts;
|
|
getContexts(contexts);
|
|
|
|
// clear out all the previously assigned operations
|
|
for(Contexts::iterator citr = contexts.begin();
|
|
citr != contexts.end();
|
|
++citr)
|
|
{
|
|
(*citr)->close();
|
|
}
|
|
|
|
if (osg::Referenced::getDeleteHandler())
|
|
{
|
|
osg::Referenced::getDeleteHandler()->setNumFramesToRetainObjects(0);
|
|
osg::Referenced::getDeleteHandler()->flushAll();
|
|
}
|
|
//osg::notify(osg::NOTICE)<<"finish Viewer::~Viewer()"<<std::endl;
|
|
|
|
}
|
|
|
|
bool Viewer::isRealized() const
|
|
{
|
|
|
|
Contexts contexts;
|
|
const_cast<Viewer*>(this)->getContexts(contexts);
|
|
|
|
unsigned int numRealizedWindows = 0;
|
|
|
|
// clear out all the previously assigned operations
|
|
for(Contexts::iterator citr = contexts.begin();
|
|
citr != contexts.end();
|
|
++citr)
|
|
{
|
|
if ((*citr)->isRealized()) ++numRealizedWindows;
|
|
}
|
|
|
|
return numRealizedWindows > 0;
|
|
}
|
|
|
|
int Viewer::run()
|
|
{
|
|
// if we don't have any scene graph assigned then just return
|
|
if (!getSceneData())
|
|
{
|
|
osg::notify(osg::NOTICE)<<"Warning: Viewer::run() called without a scene graph being assigned to the viewer, cannot run."<<std::endl;
|
|
return 1;
|
|
}
|
|
|
|
if (!getCameraManipulator())
|
|
{
|
|
setCameraManipulator(new osgGA::TrackballManipulator());
|
|
}
|
|
|
|
if (!isRealized())
|
|
{
|
|
realize();
|
|
}
|
|
|
|
while (!done())
|
|
{
|
|
frame();
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
void Viewer::setStartTick(osg::Timer_t tick)
|
|
{
|
|
_startTick = tick;
|
|
|
|
Contexts contexts;
|
|
getContexts(contexts,false);
|
|
|
|
getEventQueue()->setStartTick(_startTick);
|
|
for(Contexts::iterator citr = contexts.begin();
|
|
citr != contexts.end();
|
|
++citr)
|
|
{
|
|
osgViewer::GraphicsWindow* gw = dynamic_cast<osgViewer::GraphicsWindow*>(*citr);
|
|
if (gw)
|
|
{
|
|
gw->getEventQueue()->setStartTick(_startTick);
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
void Viewer::setReferenceTime(double time)
|
|
{
|
|
osg::Timer_t tick = osg::Timer::instance()->tick();
|
|
double currentTime = osg::Timer::instance()->delta_s(_startTick, tick);
|
|
double delta_ticks = (time-currentTime)*(osg::Timer::instance()->getSecondsPerTick());
|
|
if (delta_ticks>=0) tick += osg::Timer_t(delta_ticks);
|
|
else tick -= osg::Timer_t(-delta_ticks);
|
|
|
|
// assign the new start tick
|
|
setStartTick(tick);
|
|
}
|
|
|
|
|
|
void Viewer::setSceneData(osg::Node* node)
|
|
{
|
|
_scene = new osgViewer::Scene;
|
|
_scene->setSceneData(node);
|
|
_scene->setFrameStamp(_frameStamp.get());
|
|
|
|
setReferenceTime(0.0);
|
|
|
|
assignSceneDataToCameras();
|
|
setUpRenderingSupport();
|
|
}
|
|
|
|
void Viewer::setThreadingModel(ThreadingModel threadingModel)
|
|
{
|
|
if (_threadingModel == threadingModel) return;
|
|
|
|
if (_threadsRunning) stopThreading();
|
|
|
|
_threadingModel = threadingModel;
|
|
|
|
if (_threadingModel!=SingleThreaded) startThreading();
|
|
}
|
|
|
|
void Viewer::setUseMainThreadForRenderingTraversals(bool flag)
|
|
{
|
|
if (_useMainThreadForRenderingTraversal==flag) return;
|
|
|
|
if (_threadsRunning) stopThreading();
|
|
|
|
_useMainThreadForRenderingTraversal = flag;
|
|
|
|
if (_threadingModel!=SingleThreaded) startThreading();
|
|
}
|
|
|
|
void Viewer::setEndBarrierPosition(BarrierPosition bp)
|
|
{
|
|
if (_endBarrierPosition == bp) return;
|
|
|
|
if (_threadsRunning) stopThreading();
|
|
|
|
_endBarrierPosition = bp;
|
|
|
|
if (_threadingModel!=SingleThreaded) startThreading();
|
|
}
|
|
|
|
void Viewer::stopThreading()
|
|
{
|
|
if (!_threadsRunning) return;
|
|
|
|
osg::notify(osg::INFO)<<"Viewer::stopThreading() - stopping threading"<<std::endl;
|
|
|
|
Contexts contexts;
|
|
getContexts(contexts);
|
|
|
|
Contexts::iterator citr;
|
|
|
|
// reset any double buffer graphics objects
|
|
for(citr = contexts.begin();
|
|
citr != contexts.end();
|
|
++citr)
|
|
{
|
|
osg::GraphicsContext* gc = (*citr);
|
|
|
|
OpenThreads::ScopedLock<OpenThreads::Mutex> lock( *(gc->getOperationsMutex()) );
|
|
osg::GraphicsContext::OperationQueue& operations = gc->getOperationsQueue();
|
|
for(osg::GraphicsContext::OperationQueue::iterator oitr = operations.begin();
|
|
oitr != operations.end();
|
|
++oitr)
|
|
{
|
|
ViewerDoubleBufferedRenderingOperation* vdbro = dynamic_cast<ViewerDoubleBufferedRenderingOperation*>(oitr->get());
|
|
if (vdbro)
|
|
{
|
|
vdbro->release();
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
// delete all the graphics threads.
|
|
for(Contexts::iterator itr = contexts.begin();
|
|
itr != contexts.end();
|
|
++itr)
|
|
{
|
|
(*itr)->setGraphicsThread(0);
|
|
}
|
|
|
|
// reset any double buffer graphics objects
|
|
for(citr = contexts.begin();
|
|
citr != contexts.end();
|
|
++citr)
|
|
{
|
|
osg::GraphicsContext* gc = (*citr);
|
|
|
|
OpenThreads::ScopedLock<OpenThreads::Mutex> lock( *(gc->getOperationsMutex()) );
|
|
osg::GraphicsContext::OperationQueue& operations = gc->getOperationsQueue();
|
|
for(osg::GraphicsContext::OperationQueue::iterator oitr = operations.begin();
|
|
oitr != operations.end();
|
|
++oitr)
|
|
{
|
|
ViewerDoubleBufferedRenderingOperation* vdbro = dynamic_cast<ViewerDoubleBufferedRenderingOperation*>(oitr->get());
|
|
if (vdbro)
|
|
{
|
|
vdbro->setGraphicsThreadDoesCull( true );
|
|
vdbro->_done = false;
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
_threadsRunning = false;
|
|
_startRenderingBarrier = 0;
|
|
_endRenderingDispatchBarrier = 0;
|
|
_numThreadsOnBarrier = 0;
|
|
_endDynamicDrawBlock = 0;
|
|
osg::notify(osg::INFO)<<"Viewer::stopThreading() - stopped threading :-)"<<std::endl;
|
|
}
|
|
|
|
// Compile operation, that compile OpenGL objects.
|
|
struct ViewerCompileOperation : public osg::Operation
|
|
{
|
|
ViewerCompileOperation(osg::Node* scene):
|
|
osg::Operation("Compile",false),
|
|
_scene(scene)
|
|
{
|
|
}
|
|
|
|
virtual void operator () (osg::Object* object)
|
|
{
|
|
osg::GraphicsContext* context = dynamic_cast<osg::GraphicsContext*>(object);
|
|
if (!context) return;
|
|
|
|
// OpenThreads::ScopedLock<OpenThreads::Mutex> lock(mutex);
|
|
// osg::notify(osg::NOTICE)<<"Compile "<<context<<" "<<OpenThreads::Thread::CurrentThread()<<std::endl;
|
|
|
|
// context->makeCurrentImplementation();
|
|
|
|
osgUtil::GLObjectsVisitor compileVisitor;
|
|
compileVisitor.setState(context->getState());
|
|
|
|
// do the compile traversal
|
|
if (_scene.valid()) _scene->accept(compileVisitor);
|
|
|
|
// osg::notify(osg::NOTICE)<<"Done Compile "<<context<<" "<<OpenThreads::Thread::CurrentThread()<<std::endl;
|
|
}
|
|
|
|
osg::ref_ptr<osg::Node> _scene;
|
|
};
|
|
|
|
|
|
// Draw operation, that does a draw on the scene graph.
|
|
struct ViewerRunOperations : public osg::Operation
|
|
{
|
|
ViewerRunOperations():
|
|
osg::Operation("RunOperation",true)
|
|
{
|
|
}
|
|
|
|
virtual void operator () (osg::Object* object)
|
|
{
|
|
osg::GraphicsContext* context = dynamic_cast<osg::GraphicsContext*>(object);
|
|
if (!context) return;
|
|
|
|
context->runOperations();
|
|
}
|
|
};
|
|
|
|
unsigned int Viewer::computeNumberOfThreadsIncludingMainRequired()
|
|
{
|
|
Contexts contexts;
|
|
getContexts(contexts);
|
|
|
|
if (contexts.empty()) return 0;
|
|
|
|
if (_threadingModel==SingleThreaded)
|
|
{
|
|
return 1;
|
|
}
|
|
|
|
return _useMainThreadForRenderingTraversal ? contexts.size() : contexts.size()+1;
|
|
}
|
|
|
|
void Viewer::startThreading()
|
|
{
|
|
if (_threadsRunning) return;
|
|
|
|
osg::notify(osg::INFO)<<"Starting threading"<<std::endl;
|
|
|
|
unsigned int numThreadsIncludingMainThread = computeNumberOfThreadsIncludingMainRequired();
|
|
|
|
// return if we don't need multiple threads.
|
|
// if (numThreadsIncludingMainThread <= 1) return;
|
|
|
|
// return if threading is already up and running
|
|
#if 0
|
|
if (numThreadsIncludingMainThread == _numThreadsOnBarrier)
|
|
{
|
|
osg::notify(osg::NOTICE)<<"Thread already started?"<<std::endl;
|
|
return;
|
|
}
|
|
|
|
if (_numThreadsOnBarrier!=0)
|
|
{
|
|
// we already have threads running but not the right number, so stop them and then create new threads.
|
|
stopThreading();
|
|
}
|
|
#endif
|
|
|
|
osg::notify(osg::INFO)<<"Viewer::startThreading() - starting threading"<<std::endl;
|
|
|
|
// using multi-threading so make sure that new objects are allocated with thread safe ref/unref
|
|
osg::Referenced::setThreadSafeReferenceCounting(true);
|
|
|
|
if (getSceneData())
|
|
{
|
|
osg::notify(osg::INFO)<<"Making scene thread safe"<<std::endl;
|
|
|
|
// make sure that existing scene graph objects are allocated with thread safe ref/unref
|
|
getSceneData()->setThreadSafeRefUnref(true);
|
|
|
|
// update the scene graph so that it has enough GL object buffer memory for the graphics contexts that will be using it.
|
|
getSceneData()->resizeGLObjectBuffers(osg::DisplaySettings::instance()->getMaxNumberOfGraphicsContexts());
|
|
}
|
|
|
|
|
|
Contexts contexts;
|
|
getContexts(contexts);
|
|
|
|
|
|
|
|
int numProcessors = OpenThreads::GetNumberOfProcessors();
|
|
bool affinity = true;
|
|
|
|
bool firstContextAsMainThread = numThreadsIncludingMainThread==contexts.size();
|
|
|
|
// osg::notify(osg::NOTICE)<<"numThreadsIncludingMainThread=="<<numThreadsIncludingMainThread<<std::endl;
|
|
|
|
_numThreadsOnBarrier = numThreadsIncludingMainThread;
|
|
|
|
|
|
Contexts::iterator citr;
|
|
|
|
unsigned int numViewerDoubleBufferedRenderingOperation = 0;
|
|
|
|
// reset any double buffer graphics objects
|
|
for(citr = contexts.begin();
|
|
citr != contexts.end();
|
|
++citr)
|
|
{
|
|
osg::GraphicsContext* gc = (*citr);
|
|
|
|
OpenThreads::ScopedLock<OpenThreads::Mutex> lock( *(gc->getOperationsMutex()) );
|
|
osg::GraphicsContext::OperationQueue& operations = gc->getOperationsQueue();
|
|
for(osg::GraphicsContext::OperationQueue::iterator oitr = operations.begin();
|
|
oitr != operations.end();
|
|
++oitr)
|
|
{
|
|
ViewerDoubleBufferedRenderingOperation* vdbro = dynamic_cast<ViewerDoubleBufferedRenderingOperation*>(oitr->get());
|
|
if (vdbro)
|
|
{
|
|
vdbro->setGraphicsThreadDoesCull( _threadingModel != ThreadPerCamera );
|
|
vdbro->_done = false;
|
|
++numViewerDoubleBufferedRenderingOperation;
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
if (_threadingModel==ThreadPerContext)
|
|
{
|
|
_startRenderingBarrier = new osg::BarrierOperation(_numThreadsOnBarrier, osg::BarrierOperation::NO_OPERATION);
|
|
|
|
#if 1
|
|
_endRenderingDispatchBarrier = new osg::BarrierOperation(_numThreadsOnBarrier, osg::BarrierOperation::NO_OPERATION);
|
|
#else
|
|
_endRenderingDispatchBarrier = new osg::BarrierOperation(_numThreadsOnBarrier, osg::BarrierOperation::GL_FINISH);
|
|
#endif
|
|
_endDynamicDrawBlock = 0;
|
|
}
|
|
else if (_threadingModel==ThreadPerCamera)
|
|
{
|
|
_startRenderingBarrier = 0;
|
|
_endRenderingDispatchBarrier = 0;
|
|
_endDynamicDrawBlock = new EndOfDynamicDrawBlock(numViewerDoubleBufferedRenderingOperation);
|
|
}
|
|
|
|
osg::ref_ptr<osg::SwapBuffersOperation> swapOp = new osg::SwapBuffersOperation();
|
|
|
|
citr = contexts.begin();
|
|
unsigned int processNum = 0;
|
|
|
|
if (firstContextAsMainThread)
|
|
{
|
|
++processNum;
|
|
++citr;
|
|
}
|
|
|
|
for(;
|
|
citr != contexts.end();
|
|
++citr,
|
|
++processNum)
|
|
{
|
|
osg::GraphicsContext* gc = (*citr);
|
|
|
|
gc->getState()->setDynamicObjectRenderingCompletedCallback(_endDynamicDrawBlock.get());
|
|
|
|
// create the a graphics thread for this context
|
|
gc->createGraphicsThread();
|
|
|
|
if (affinity) gc->getGraphicsThread()->setProcessorAffinity(processNum % numProcessors);
|
|
|
|
gc->getGraphicsThread()->add(new ViewerCompileOperation(getSceneData()));
|
|
|
|
// add the startRenderingBarrier
|
|
if (_startRenderingBarrier.valid()) gc->getGraphicsThread()->add(_startRenderingBarrier.get());
|
|
|
|
// add the rendering operation itself.
|
|
gc->getGraphicsThread()->add(new ViewerRunOperations());
|
|
|
|
if (_endBarrierPosition==BeforeSwapBuffers && _endRenderingDispatchBarrier.valid())
|
|
{
|
|
// add the endRenderingDispatchBarrier
|
|
gc->getGraphicsThread()->add(_endRenderingDispatchBarrier.get());
|
|
}
|
|
|
|
// add the swap buffers
|
|
gc->getGraphicsThread()->add(swapOp.get());
|
|
|
|
if (_endBarrierPosition==AfterSwapBuffers && _endRenderingDispatchBarrier.valid())
|
|
{
|
|
// add the endRenderingDispatchBarrier
|
|
gc->getGraphicsThread()->add(_endRenderingDispatchBarrier.get());
|
|
}
|
|
|
|
}
|
|
|
|
if (firstContextAsMainThread)
|
|
{
|
|
if (affinity) OpenThreads::SetProcessorAffinityOfCurrentThread(0);
|
|
}
|
|
|
|
for(citr = contexts.begin();
|
|
citr != contexts.end();
|
|
++citr)
|
|
{
|
|
osg::GraphicsContext* gc = (*citr);
|
|
if (gc->getGraphicsThread() && !gc->getGraphicsThread()->isRunning())
|
|
{
|
|
osg::notify(osg::INFO)<<" gc->getGraphicsThread()->startThread() "<<gc->getGraphicsThread()<<std::endl;
|
|
gc->getGraphicsThread()->startThread();
|
|
// OpenThreads::Thread::YieldCurrentThread();
|
|
}
|
|
}
|
|
|
|
_threadsRunning = true;
|
|
|
|
osg::notify(osg::INFO)<<"Set up threading"<<std::endl;
|
|
|
|
}
|
|
|
|
void Viewer::checkWindowStatus()
|
|
{
|
|
unsigned int numThreadsIncludingMainThread = computeNumberOfThreadsIncludingMainRequired();
|
|
if (numThreadsIncludingMainThread != _numThreadsOnBarrier)
|
|
{
|
|
stopThreading();
|
|
|
|
if (numThreadsIncludingMainThread > 1) startThreading();
|
|
}
|
|
|
|
if (numThreadsIncludingMainThread==0) _done = true;
|
|
}
|
|
|
|
|
|
void Viewer::getContexts(Contexts& contexts, bool onlyValid)
|
|
{
|
|
typedef std::set<osg::GraphicsContext*> ContextSet;
|
|
ContextSet contextSet;
|
|
|
|
if (_camera.valid() &&
|
|
_camera->getGraphicsContext() &&
|
|
(_camera->getGraphicsContext()->valid() || !onlyValid))
|
|
{
|
|
contextSet.insert(_camera->getGraphicsContext());
|
|
}
|
|
|
|
for(unsigned int i=0; i<getNumSlaves(); ++i)
|
|
{
|
|
Slave& slave = getSlave(i);
|
|
if (slave._camera.valid() &&
|
|
slave._camera->getGraphicsContext() &&
|
|
(slave._camera->getGraphicsContext()->valid() || !onlyValid))
|
|
{
|
|
contextSet.insert(slave._camera->getGraphicsContext());
|
|
}
|
|
}
|
|
|
|
contexts.clear();
|
|
contexts.reserve(contextSet.size());
|
|
|
|
for(ContextSet::iterator itr = contextSet.begin();
|
|
itr != contextSet.end();
|
|
++itr)
|
|
{
|
|
contexts.push_back(const_cast<osg::GraphicsContext*>(*itr));
|
|
}
|
|
}
|
|
|
|
void Viewer::getWindows(Windows& windows, bool onlyValid)
|
|
{
|
|
windows.clear();
|
|
|
|
Contexts contexts;
|
|
getContexts(contexts, onlyValid);
|
|
|
|
for(Contexts::iterator itr = contexts.begin();
|
|
itr != contexts.end();
|
|
++itr)
|
|
{
|
|
osgViewer::GraphicsWindow* gw = dynamic_cast<osgViewer::GraphicsWindow*>(*itr);
|
|
if (gw) windows.push_back(gw);
|
|
}
|
|
}
|
|
|
|
void Viewer::getCameras(Cameras& cameras, bool onlyActive)
|
|
{
|
|
cameras.clear();
|
|
|
|
if (onlyActive || _camera->getGraphicsContext()) cameras.push_back(_camera.get());
|
|
|
|
for(Slaves::iterator itr = _slaves.begin();
|
|
itr != _slaves.end();
|
|
++itr)
|
|
{
|
|
if (onlyActive || itr->_camera->getGraphicsContext()) cameras.push_back(itr->_camera.get());
|
|
}
|
|
|
|
}
|
|
|
|
void Viewer::setUpRenderingSupport()
|
|
{
|
|
bool threadsRunningBeforeSetUpRenderingSupport = _threadsRunning;
|
|
if (_threadsRunning) stopThreading();
|
|
|
|
_sceneViews.clear();
|
|
|
|
Contexts contexts;
|
|
getContexts(contexts);
|
|
|
|
osg::FrameStamp* frameStamp = getFrameStamp();
|
|
osg::DisplaySettings* ds = _displaySettings.valid() ? _displaySettings.get() : osg::DisplaySettings::instance();
|
|
osgDB::DatabasePager* dp = _scene.valid() ? _scene->getDatabasePager() : 0;
|
|
|
|
bool graphicsThreadDoesCull = _threadingModel!=ThreadPerCamera;
|
|
unsigned int numViewerDoubleBufferedRenderingOperation = 0;
|
|
|
|
Cameras localCameras;
|
|
getCameras(localCameras);
|
|
|
|
if (true)//(_threadingModel==ThreadPerCamera)
|
|
{
|
|
for(Contexts::iterator gcitr = contexts.begin();
|
|
gcitr != contexts.end();
|
|
++gcitr)
|
|
{
|
|
(*gcitr)->removeAllOperations();
|
|
|
|
osg::GraphicsContext* gc = *gcitr;
|
|
osg::GraphicsContext::Cameras& cameras = gc->getCameras();
|
|
osg::State* state = gc->getState();
|
|
if (dp) dp->setCompileGLObjectsForContextID(state->getContextID(), true);
|
|
|
|
for(osg::GraphicsContext::Cameras::iterator citr = cameras.begin();
|
|
citr != cameras.end();
|
|
++citr)
|
|
{
|
|
osg::Camera* camera = *citr;
|
|
camera->setStats(new osg::Stats("Camera"));
|
|
|
|
bool localCamera = std::find(localCameras.begin(),localCameras.end(),camera) != localCameras.end();
|
|
if (localCamera)
|
|
{
|
|
osgUtil::SceneView* sceneViewList[2];
|
|
|
|
for(int i=0; i<2; ++i)
|
|
{
|
|
osgUtil::SceneView* sceneView = new osgUtil::SceneView;
|
|
|
|
_sceneViews.push_back(sceneView);
|
|
sceneViewList[i] = sceneView;
|
|
|
|
sceneView->setGlobalStateSet(_camera->getStateSet());
|
|
sceneView->setDefaults();
|
|
sceneView->setDisplaySettings(ds);
|
|
sceneView->setCamera(camera);
|
|
sceneView->setState(state);
|
|
sceneView->setFrameStamp(frameStamp);
|
|
}
|
|
|
|
|
|
// osg::notify(osg::NOTICE)<<"localCamera"<<std::endl;
|
|
ViewerDoubleBufferedRenderingOperation* vdbro = new ViewerDoubleBufferedRenderingOperation(graphicsThreadDoesCull, sceneViewList[0], sceneViewList[1], dp, _startTick);
|
|
gc->add(vdbro);
|
|
++numViewerDoubleBufferedRenderingOperation;
|
|
}
|
|
else
|
|
{
|
|
// osg::notify(osg::NOTICE)<<"non local Camera"<<std::endl;
|
|
|
|
osgUtil::SceneView* sceneView = new osgUtil::SceneView;
|
|
|
|
_sceneViews.push_back(sceneView);
|
|
|
|
sceneView->setGlobalStateSet(_camera->getStateSet());
|
|
sceneView->setDefaults();
|
|
sceneView->setDisplaySettings(ds);
|
|
sceneView->setCamera(camera);
|
|
sceneView->setState(state);
|
|
sceneView->setFrameStamp(frameStamp);
|
|
|
|
ViewerRenderingOperation* vro = new ViewerRenderingOperation(sceneView, dp, _startTick);
|
|
gc->add(vro);
|
|
}
|
|
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
for(Contexts::iterator gcitr = contexts.begin();
|
|
gcitr != contexts.end();
|
|
++gcitr)
|
|
{
|
|
(*gcitr)->removeAllOperations();
|
|
|
|
osg::GraphicsContext* gc = *gcitr;
|
|
osg::GraphicsContext::Cameras& cameras = gc->getCameras();
|
|
osg::State* state = gc->getState();
|
|
|
|
for(osg::GraphicsContext::Cameras::iterator citr = cameras.begin();
|
|
citr != cameras.end();
|
|
++citr)
|
|
{
|
|
osg::Camera* camera = *citr;
|
|
|
|
camera->setStats(new osg::Stats("Camera"));
|
|
|
|
osgUtil::SceneView* sceneView = new osgUtil::SceneView;
|
|
_sceneViews.push_back(sceneView);
|
|
|
|
sceneView->setGlobalStateSet(_camera->getStateSet());
|
|
sceneView->setDefaults();
|
|
sceneView->setDisplaySettings(ds);
|
|
sceneView->setCamera(camera);
|
|
sceneView->setState(state);
|
|
sceneView->setFrameStamp(frameStamp);
|
|
|
|
if (dp) dp->setCompileGLObjectsForContextID(state->getContextID(), true);
|
|
|
|
gc->add(new ViewerRenderingOperation(sceneView, dp, _startTick));
|
|
|
|
++numViewerDoubleBufferedRenderingOperation;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (_endDynamicDrawBlock.valid())
|
|
{
|
|
_endDynamicDrawBlock->setNumOfBlocks(numViewerDoubleBufferedRenderingOperation);
|
|
}
|
|
|
|
if (threadsRunningBeforeSetUpRenderingSupport) startThreading();
|
|
}
|
|
|
|
|
|
void Viewer::realize()
|
|
{
|
|
//osg::notify(osg::INFO)<<"Viewer::realize()"<<std::endl;
|
|
|
|
setCameraWithFocus(0);
|
|
|
|
Contexts contexts;
|
|
getContexts(contexts);
|
|
|
|
if (contexts.empty())
|
|
{
|
|
osg::notify(osg::INFO)<<"Viewer::realize() - No valid contexts found, setting up view across all screens."<<std::endl;
|
|
|
|
// no windows are already set up so set up a default view
|
|
#if 1
|
|
setUpViewAcrossAllScreens();
|
|
#else
|
|
setUpViewOnSingleScreen(0);
|
|
#endif
|
|
|
|
getContexts(contexts);
|
|
}
|
|
|
|
if (contexts.empty())
|
|
{
|
|
osg::notify(osg::NOTICE)<<"Viewer::realize() - failed to set up any windows"<<std::endl;
|
|
_done = true;
|
|
return;
|
|
}
|
|
|
|
setUpRenderingSupport();
|
|
|
|
for(Contexts::iterator citr = contexts.begin();
|
|
citr != contexts.end();
|
|
++citr)
|
|
{
|
|
osg::GraphicsContext* gc = *citr;
|
|
gc->realize();
|
|
|
|
if (_realizeOperation.valid())
|
|
{
|
|
gc->makeCurrent();
|
|
|
|
(*_realizeOperation)(gc);
|
|
|
|
gc->releaseContext();
|
|
}
|
|
}
|
|
|
|
bool grabFocus = true;
|
|
if (grabFocus)
|
|
{
|
|
for(Contexts::iterator citr = contexts.begin();
|
|
citr != contexts.end();
|
|
++citr)
|
|
{
|
|
osgViewer::GraphicsWindow* gw = dynamic_cast<osgViewer::GraphicsWindow*>(*citr);
|
|
if (gw)
|
|
{
|
|
gw->grabFocusIfPointerInWindow();
|
|
}
|
|
}
|
|
}
|
|
|
|
// initialize the global timer to be relative to the current time.
|
|
osg::Timer::instance()->setStartTick();
|
|
|
|
// pass on the start tick to all the associated eventqueues
|
|
setStartTick(osg::Timer::instance()->getStartTick());
|
|
|
|
startThreading();
|
|
|
|
}
|
|
|
|
|
|
void Viewer::frame(double simulationTime)
|
|
{
|
|
if (_done) return;
|
|
|
|
// osg::notify(osg::NOTICE)<<std::endl<<"Viewer::frame()"<<std::endl<<std::endl;
|
|
|
|
if (_firstFrame)
|
|
{
|
|
init();
|
|
|
|
if (!isRealized())
|
|
{
|
|
realize();
|
|
}
|
|
|
|
_firstFrame = false;
|
|
}
|
|
advance(simulationTime);
|
|
|
|
eventTraversal();
|
|
updateTraversal();
|
|
renderingTraversals();
|
|
}
|
|
|
|
void Viewer::advance(double simulationTime)
|
|
{
|
|
if (_done) return;
|
|
|
|
double prevousReferenceTime = _frameStamp->getReferenceTime();
|
|
int previousFrameNumber = _frameStamp->getFrameNumber();
|
|
|
|
_frameStamp->setFrameNumber(_frameStamp->getFrameNumber()+1);
|
|
|
|
_frameStamp->setReferenceTime( osg::Timer::instance()->delta_s(_startTick, osg::Timer::instance()->tick()) );
|
|
|
|
if (simulationTime==USE_REFERENCE_TIME)
|
|
{
|
|
_frameStamp->setSimulationTime(_frameStamp->getReferenceTime());
|
|
}
|
|
else
|
|
{
|
|
_frameStamp->setSimulationTime(simulationTime);
|
|
}
|
|
|
|
if (getStats() && getStats()->collectStats("frame_rate"))
|
|
{
|
|
// update previous frame stats
|
|
double deltaFrameTime = _frameStamp->getReferenceTime() - prevousReferenceTime;
|
|
getStats()->setAttribute(previousFrameNumber, "Frame duration", deltaFrameTime);
|
|
getStats()->setAttribute(previousFrameNumber, "Frame rate", 1.0/deltaFrameTime);
|
|
|
|
// update current frames stats
|
|
getStats()->setAttribute(_frameStamp->getFrameNumber(), "Reference time", _frameStamp->getReferenceTime());
|
|
}
|
|
|
|
if (osg::Referenced::getDeleteHandler())
|
|
{
|
|
osg::Referenced::getDeleteHandler()->flush();
|
|
osg::Referenced::getDeleteHandler()->setFrameNumber(_frameStamp->getFrameNumber());
|
|
}
|
|
|
|
}
|
|
|
|
void Viewer::eventTraversal()
|
|
{
|
|
if (_done) return;
|
|
|
|
double beginEventTraversal = osg::Timer::instance()->delta_s(_startTick, osg::Timer::instance()->tick());
|
|
|
|
// osg::notify(osg::NOTICE)<<"Viewer::frameEventTraversal()."<<std::endl;
|
|
|
|
// need to copy events from the GraphicsWindow's into local EventQueue;
|
|
osgGA::EventQueue::Events events;
|
|
|
|
Contexts contexts;
|
|
getContexts(contexts);
|
|
|
|
osgGA::GUIEventAdapter* eventState = getEventQueue()->getCurrentEventState();
|
|
osg::Matrix masterCameraVPW = getCamera()->getViewMatrix() * getCamera()->getProjectionMatrix();
|
|
if (getCamera()->getViewport())
|
|
{
|
|
osg::Viewport* viewport = getCamera()->getViewport();
|
|
masterCameraVPW *= viewport->computeWindowMatrix();
|
|
eventState->setInputRange( viewport->x(), viewport->y(), viewport->x() + viewport->width(), viewport->y() + viewport->height());
|
|
}
|
|
else
|
|
{
|
|
eventState->setInputRange(-1.0, -1.0, 1.0, 1.0);
|
|
}
|
|
|
|
|
|
for(Contexts::iterator citr = contexts.begin();
|
|
citr != contexts.end();
|
|
++citr)
|
|
{
|
|
osgViewer::GraphicsWindow* gw = dynamic_cast<osgViewer::GraphicsWindow*>(*citr);
|
|
if (gw)
|
|
{
|
|
gw->checkEvents();
|
|
|
|
osgGA::EventQueue::Events gw_events;
|
|
gw->getEventQueue()->takeEvents(gw_events);
|
|
|
|
osgGA::EventQueue::Events::iterator itr;
|
|
for(itr = gw_events.begin();
|
|
itr != gw_events.end();
|
|
++itr)
|
|
{
|
|
osgGA::GUIEventAdapter* event = itr->get();
|
|
|
|
bool pointerEvent = false;
|
|
|
|
float x = event->getX();
|
|
float y = event->getY();
|
|
|
|
bool invert_y = event->getMouseYOrientation()==osgGA::GUIEventAdapter::Y_INCREASING_DOWNWARDS;
|
|
if (invert_y && gw->getTraits()) y = gw->getTraits()->height - y;
|
|
|
|
switch(event->getEventType())
|
|
{
|
|
case(osgGA::GUIEventAdapter::PUSH):
|
|
case(osgGA::GUIEventAdapter::RELEASE):
|
|
case(osgGA::GUIEventAdapter::DRAG):
|
|
case(osgGA::GUIEventAdapter::MOVE):
|
|
{
|
|
pointerEvent = true;
|
|
|
|
if (event->getEventType()!=osgGA::GUIEventAdapter::DRAG || !getCameraWithFocus())
|
|
{
|
|
osg::GraphicsContext::Cameras& cameras = gw->getCameras();
|
|
for(osg::GraphicsContext::Cameras::iterator citr = cameras.begin();
|
|
citr != cameras.end();
|
|
++citr)
|
|
{
|
|
osg::Camera* camera = *citr;
|
|
if (camera->getView()==this)
|
|
{
|
|
osg::Viewport* viewport = camera ? camera->getViewport() : 0;
|
|
if (viewport &&
|
|
x >= viewport->x() && y >= viewport->y() &&
|
|
x <= (viewport->x()+viewport->width()) && y <= (viewport->y()+viewport->height()) )
|
|
{
|
|
setCameraWithFocus(camera);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
break;
|
|
}
|
|
default:
|
|
break;
|
|
}
|
|
|
|
if (pointerEvent)
|
|
{
|
|
if (getCameraWithFocus())
|
|
{
|
|
osg::Viewport* viewport = getCameraWithFocus()->getViewport();
|
|
osg::Matrix localCameraVPW = getCameraWithFocus()->getViewMatrix() * getCameraWithFocus()->getProjectionMatrix();
|
|
if (viewport) localCameraVPW *= viewport->computeWindowMatrix();
|
|
|
|
osg::Matrix matrix( osg::Matrix::inverse(localCameraVPW) * masterCameraVPW );
|
|
|
|
osg::Vec3d new_coord = osg::Vec3d(x,y,0.0) * matrix;
|
|
|
|
x = new_coord.x();
|
|
y = new_coord.y();
|
|
|
|
event->setInputRange(eventState->getXmin(), eventState->getYmin(), eventState->getXmax(), eventState->getYmax());
|
|
event->setX(x);
|
|
event->setY(y);
|
|
event->setMouseYOrientation(osgGA::GUIEventAdapter::Y_INCREASING_UPWARDS);
|
|
|
|
}
|
|
// pass along the new pointer events details to the eventState of the viewer
|
|
eventState->setX(x);
|
|
eventState->setY(y);
|
|
eventState->setButtonMask(event->getButtonMask());
|
|
eventState->setMouseYOrientation(osgGA::GUIEventAdapter::Y_INCREASING_UPWARDS);
|
|
|
|
}
|
|
else
|
|
{
|
|
event->setInputRange(eventState->getXmin(), eventState->getYmin(), eventState->getXmax(), eventState->getYmax());
|
|
event->setX(eventState->getX());
|
|
event->setY(eventState->getY());
|
|
event->setButtonMask(eventState->getButtonMask());
|
|
event->setMouseYOrientation(eventState->getMouseYOrientation());
|
|
}
|
|
//osg::notify(osg::NOTICE)<<" mouse x = "<<event->getX()<<" y="<<event->getY()<<std::endl;
|
|
// osg::notify(osg::NOTICE)<<" mouse Xmin = "<<event->getXmin()<<" Ymin="<<event->getYmin()<<" xMax="<<event->getXmax()<<" Ymax="<<event->getYmax()<<std::endl;
|
|
}
|
|
|
|
for(itr = gw_events.begin();
|
|
itr != gw_events.end();
|
|
++itr)
|
|
{
|
|
osgGA::GUIEventAdapter* event = itr->get();
|
|
switch(event->getEventType())
|
|
{
|
|
case(osgGA::GUIEventAdapter::CLOSE_WINDOW):
|
|
{
|
|
// stopThreading();
|
|
|
|
gw->close();
|
|
|
|
// startThreading();
|
|
|
|
break;
|
|
}
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
events.insert(events.end(), gw_events.begin(), gw_events.end());
|
|
|
|
}
|
|
}
|
|
|
|
|
|
// osg::notify(osg::NOTICE)<<"mouseEventState Xmin = "<<eventState->getXmin()<<" Ymin="<<eventState->getYmin()<<" xMax="<<eventState->getXmax()<<" Ymax="<<eventState->getYmax()<<std::endl;
|
|
|
|
|
|
_eventQueue->frame( getFrameStamp()->getReferenceTime() );
|
|
_eventQueue->takeEvents(events);
|
|
|
|
|
|
#if 0
|
|
// osg::notify(osg::NOTICE)<<"Events "<<events.size()<<std::endl;
|
|
for(osgGA::EventQueue::Events::iterator itr = events.begin();
|
|
itr != events.end();
|
|
++itr)
|
|
{
|
|
osgGA::GUIEventAdapter* event = itr->get();
|
|
switch(event->getEventType())
|
|
{
|
|
case(osgGA::GUIEventAdapter::PUSH):
|
|
osg::notify(osg::NOTICE)<<" PUSH "<<event->getButton()<<" x="<<event->getX()<<" y="<<event->getY()<<std::endl;
|
|
break;
|
|
case(osgGA::GUIEventAdapter::RELEASE):
|
|
osg::notify(osg::NOTICE)<<" RELEASE "<<event->getButton()<<" x="<<event->getX()<<" y="<<event->getY()<<std::endl;
|
|
break;
|
|
case(osgGA::GUIEventAdapter::DRAG):
|
|
osg::notify(osg::NOTICE)<<" DRAG "<<event->getButtonMask()<<" x="<<event->getX()<<" y="<<event->getY()<<std::endl;
|
|
break;
|
|
case(osgGA::GUIEventAdapter::MOVE):
|
|
osg::notify(osg::NOTICE)<<" MOVE "<<event->getButtonMask()<<" x="<<event->getX()<<" y="<<event->getY()<<std::endl;
|
|
break;
|
|
case(osgGA::GUIEventAdapter::SCROLL):
|
|
osg::notify(osg::NOTICE)<<" SCROLL "<<event->getScrollingMotion()<<std::endl;
|
|
break;
|
|
case(osgGA::GUIEventAdapter::KEYDOWN):
|
|
osg::notify(osg::NOTICE)<<" KEYDOWN '"<<(char)event->getKey()<<"'"<<std::endl;
|
|
break;
|
|
case(osgGA::GUIEventAdapter::KEYUP):
|
|
osg::notify(osg::NOTICE)<<" KEYUP '"<<(char)event->getKey()<<"'"<<std::endl;
|
|
break;
|
|
case(osgGA::GUIEventAdapter::RESIZE):
|
|
osg::notify(osg::NOTICE)<<" RESIZE "<<event->getWindowX()<<"/"<<event->getWindowY()<<" x "<<event->getWindowWidth()<<"/"<<event->getWindowHeight() << std::endl;
|
|
break;
|
|
case(osgGA::GUIEventAdapter::QUIT_APPLICATION):
|
|
osg::notify(osg::NOTICE)<<" QUIT_APPLICATION " << std::endl;
|
|
break;
|
|
case(osgGA::GUIEventAdapter::FRAME):
|
|
// osg::notify(osg::NOTICE)<<" FRAME "<<std::endl;
|
|
break;
|
|
default:
|
|
// osg::notify(osg::NOTICE)<<" Event not handled"<<std::endl;
|
|
break;
|
|
}
|
|
}
|
|
#endif
|
|
|
|
// osg::notify(osg::NOTICE)<<"Events "<<events.size()<<std::endl;
|
|
|
|
if ((_keyEventSetsDone!=0) || _quitEventSetsDone)
|
|
{
|
|
for(osgGA::EventQueue::Events::iterator itr = events.begin();
|
|
itr != events.end();
|
|
++itr)
|
|
{
|
|
osgGA::GUIEventAdapter* event = itr->get();
|
|
switch(event->getEventType())
|
|
{
|
|
case(osgGA::GUIEventAdapter::KEYUP):
|
|
if (_keyEventSetsDone && event->getKey()==_keyEventSetsDone) _done = true;
|
|
break;
|
|
|
|
case(osgGA::GUIEventAdapter::QUIT_APPLICATION):
|
|
if (_quitEventSetsDone) _done = true;
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (_done) return;
|
|
|
|
for(osgGA::EventQueue::Events::iterator itr = events.begin();
|
|
itr != events.end();
|
|
++itr)
|
|
{
|
|
osgGA::GUIEventAdapter* event = itr->get();
|
|
|
|
if (_cameraManipulator.valid())
|
|
{
|
|
if (_cameraManipulator->handle( *event, *this)) event->setHandled(true);
|
|
}
|
|
|
|
for(EventHandlers::iterator hitr = _eventHandlers.begin();
|
|
hitr != _eventHandlers.end();
|
|
++hitr)
|
|
{
|
|
if ((*hitr)->handle( *event, *this, 0, 0)) event->setHandled(true);
|
|
}
|
|
}
|
|
|
|
if (_eventVisitor.valid() && _scene.valid())
|
|
{
|
|
_eventVisitor->setFrameStamp(getFrameStamp());
|
|
_eventVisitor->setTraversalNumber(getFrameStamp()->getFrameNumber());
|
|
|
|
for(osgGA::EventQueue::Events::iterator itr = events.begin();
|
|
itr != events.end();
|
|
++itr)
|
|
{
|
|
osgGA::GUIEventAdapter* event = itr->get();
|
|
|
|
_eventVisitor->reset();
|
|
_eventVisitor->addEvent( event );
|
|
|
|
getSceneData()->accept(*_eventVisitor);
|
|
}
|
|
}
|
|
|
|
|
|
if (getStats() && getStats()->collectStats("event"))
|
|
{
|
|
double endEventTraversal = osg::Timer::instance()->delta_s(_startTick, osg::Timer::instance()->tick());
|
|
|
|
// update current frames stats
|
|
getStats()->setAttribute(_frameStamp->getFrameNumber(), "Event traversal begin time", beginEventTraversal);
|
|
getStats()->setAttribute(_frameStamp->getFrameNumber(), "Event traversal end time", endEventTraversal);
|
|
getStats()->setAttribute(_frameStamp->getFrameNumber(), "Event traversal time taken", endEventTraversal-beginEventTraversal);
|
|
}
|
|
|
|
|
|
}
|
|
|
|
void Viewer::updateTraversal()
|
|
{
|
|
if (_done) return;
|
|
|
|
double beginUpdateTraversal = osg::Timer::instance()->delta_s(_startTick, osg::Timer::instance()->tick());
|
|
|
|
if (_scene.valid()) _scene->frameUpdateTraversal();
|
|
|
|
if (_cameraManipulator.valid())
|
|
{
|
|
_camera->setViewMatrix(_cameraManipulator->getInverseMatrix());
|
|
}
|
|
|
|
updateSlaves();
|
|
|
|
if (getStats() && getStats()->collectStats("update"))
|
|
{
|
|
double endUpdateTraversal = osg::Timer::instance()->delta_s(_startTick, osg::Timer::instance()->tick());
|
|
|
|
// update current frames stats
|
|
getStats()->setAttribute(_frameStamp->getFrameNumber(), "Update traversal begin time", beginUpdateTraversal);
|
|
getStats()->setAttribute(_frameStamp->getFrameNumber(), "Update traversal end time", endUpdateTraversal);
|
|
getStats()->setAttribute(_frameStamp->getFrameNumber(), "Update traversal time taken", endUpdateTraversal-beginUpdateTraversal);
|
|
}
|
|
}
|
|
|
|
void Viewer::renderingTraversals()
|
|
{
|
|
// check to see if windows are still valid
|
|
checkWindowStatus();
|
|
|
|
if (_done) return;
|
|
|
|
double beginRenderingTraversals = osg::Timer::instance()->delta_s(_startTick, osg::Timer::instance()->tick());
|
|
|
|
osgDB::DatabasePager* dp = _scene.valid() ? _scene->getDatabasePager() : 0;
|
|
if (dp)
|
|
{
|
|
dp->signalBeginFrame(getFrameStamp());
|
|
}
|
|
|
|
// osg::notify(osg::NOTICE)<<std::endl<<"Joing _startRenderingBarrier block"<<std::endl;
|
|
|
|
|
|
Contexts contexts;
|
|
getContexts(contexts);
|
|
|
|
Contexts::iterator itr;
|
|
|
|
// dispatch the the rendering threads
|
|
if (_startRenderingBarrier.valid()) _startRenderingBarrier->block();
|
|
|
|
if (_endDynamicDrawBlock.valid())
|
|
{
|
|
_endDynamicDrawBlock->reset();
|
|
}
|
|
|
|
// reset any double buffer graphics objects
|
|
for(itr = contexts.begin();
|
|
itr != contexts.end();
|
|
++itr)
|
|
{
|
|
osg::GraphicsContext* gc = (*itr);
|
|
|
|
OpenThreads::ScopedLock<OpenThreads::Mutex> lock( *(gc->getOperationsMutex()) );
|
|
osg::GraphicsContext::OperationQueue& operations = gc->getOperationsQueue();
|
|
for(osg::GraphicsContext::OperationQueue::iterator oitr = operations.begin();
|
|
oitr != operations.end();
|
|
++oitr)
|
|
{
|
|
ViewerDoubleBufferedRenderingOperation* vdbro = dynamic_cast<ViewerDoubleBufferedRenderingOperation*>(oitr->get());
|
|
if (vdbro)
|
|
{
|
|
if (!vdbro->getGraphicsThreadDoesCull())
|
|
{
|
|
vdbro->cull();
|
|
}
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
for(itr = contexts.begin();
|
|
itr != contexts.end();
|
|
++itr)
|
|
{
|
|
if (_done) return;
|
|
if (!((*itr)->getGraphicsThread()))
|
|
{
|
|
(*itr)->makeCurrent();
|
|
(*itr)->runOperations();
|
|
(*itr)->releaseContext();
|
|
}
|
|
}
|
|
|
|
// osg::notify(osg::NOTICE)<<"Joing _endRenderingDispatchBarrier block"<<std::endl;
|
|
|
|
// wait till the dynamic draw is complete.
|
|
if (_endDynamicDrawBlock.valid())
|
|
{
|
|
// osg::Timer_t startTick = osg::Timer::instance()->tick();
|
|
_endDynamicDrawBlock->block();
|
|
// osg::notify(osg::NOTICE)<<"Time waiting "<<osg::Timer::instance()->delta_m(startTick, osg::Timer::instance()->tick())<<std::endl;;
|
|
}
|
|
|
|
// wait till the rendering dispatch is done.
|
|
if (_endRenderingDispatchBarrier.valid()) _endRenderingDispatchBarrier->block();
|
|
|
|
for(itr = contexts.begin();
|
|
itr != contexts.end();
|
|
++itr)
|
|
{
|
|
if (_done) return;
|
|
|
|
if (!((*itr)->getGraphicsThread()))
|
|
{
|
|
(*itr)->makeCurrent();
|
|
(*itr)->swapBuffers();
|
|
(*itr)->releaseContext();
|
|
}
|
|
}
|
|
|
|
if (dp)
|
|
{
|
|
dp->signalEndFrame();
|
|
}
|
|
|
|
if (getStats() && getStats()->collectStats("update"))
|
|
{
|
|
double endRenderingTraversals = osg::Timer::instance()->delta_s(_startTick, osg::Timer::instance()->tick());
|
|
|
|
// update current frames stats
|
|
getStats()->setAttribute(_frameStamp->getFrameNumber(), "Rendering traversals begin time ", beginRenderingTraversals);
|
|
getStats()->setAttribute(_frameStamp->getFrameNumber(), "Rendering traversals end time ", endRenderingTraversals);
|
|
getStats()->setAttribute(_frameStamp->getFrameNumber(), "Rendering traversals time taken", endRenderingTraversals-beginRenderingTraversals);
|
|
}
|
|
}
|