44901ae86f
Priority scheme for tile loading/removing Cleaner tile manager interface for AI/groundcache/... Reduce start-up delay. Drop splash screen when inner scenery is available. Be nice to osg loader: slow-down main loop while initial scenery is still loading.
111 lines
3.8 KiB
C++
111 lines
3.8 KiB
C++
// SceneryPager.cxx -- Interface to OSG database pager
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//
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// Copyright (C) 2007 Tim Moore timoore@redhat.com
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//
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// This program is free software; you can redistribute it and/or
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// modify it under the terms of the GNU General Public License as
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// published by the Free Software Foundation; either version 2 of the
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// License, or (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful, but
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// WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program; if not, write to the Free Software
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// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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#ifdef HAVE_CONFIG_H
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# include <config.h>
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#endif
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#include <simgear/scene/model/SGPagedLOD.hxx>
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#include <simgear/math/SGMath.hxx>
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#include "SceneryPager.hxx"
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#include <algorithm>
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#include <functional>
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using namespace osg;
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using namespace flightgear;
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SceneryPager::SceneryPager()
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{
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_pagerRequests.reserve(48);
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_deleteRequests.reserve(16);
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setExpiryDelay(120.0);
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}
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SceneryPager::SceneryPager(const SceneryPager& rhs) :
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DatabasePager(rhs)
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{
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}
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SceneryPager::~SceneryPager()
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{
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}
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void SceneryPager::requestNodeFile(const std::string& fileName, Group* group,
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float priority, const FrameStamp* framestamp,
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ref_ptr<Referenced>& databaseRequest,
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#if SG_OSG_MIN_VERSION_REQUIRED(2,9,5)
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const osg::Referenced* options
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#else
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osgDB::ReaderWriter::Options* options
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#endif
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)
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{
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simgear::SGPagedLOD *sgplod = dynamic_cast<simgear::SGPagedLOD*>(group);
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if(sgplod)
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DatabasePager::requestNodeFile(fileName, group, priority, framestamp,
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databaseRequest,
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sgplod->getReaderWriterOptions());
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else
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DatabasePager::requestNodeFile(fileName, group, priority, framestamp,
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databaseRequest,
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options);
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}
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void SceneryPager::queueRequest(const std::string& fileName, Group* group,
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float priority, FrameStamp* frameStamp,
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ref_ptr<Referenced>& databaseRequest,
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osgDB::ReaderWriter::Options* options)
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{
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_pagerRequests.push_back(PagerRequest(fileName, group, priority,
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frameStamp,
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databaseRequest,
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options));
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}
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void SceneryPager::queueDeleteRequest(osg::ref_ptr<osg::Object>& objptr)
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{
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_deleteRequests.push_back(objptr);
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objptr = 0;
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}
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void SceneryPager::signalEndFrame()
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{
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using namespace std;
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bool areDeleteRequests = false;
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bool arePagerRequests = false;
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if (!_deleteRequests.empty()) {
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areDeleteRequests = true;
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OpenThreads::ScopedLock<OpenThreads::Mutex>
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lock(_fileRequestQueue->_childrenToDeleteListMutex);
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ObjectList& deleteList = _fileRequestQueue->_childrenToDeleteList;
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deleteList.insert(deleteList.end(),
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_deleteRequests.begin(),
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_deleteRequests.end());
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_deleteRequests.clear();
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}
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if (!_pagerRequests.empty()) {
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arePagerRequests = true;
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for_each(_pagerRequests.begin(), _pagerRequests.end(),
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bind2nd(mem_fun_ref(&PagerRequest::doRequest), this));
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_pagerRequests.clear();
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}
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if (areDeleteRequests && !arePagerRequests) {
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_fileRequestQueue->updateBlock();
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}
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DatabasePager::signalEndFrame();
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}
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