62 lines
2.6 KiB
C++
62 lines
2.6 KiB
C++
/****************************************************************************
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* VCGLib o o *
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* Visual and Computer Graphics Library o o *
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* _ O _ *
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* Copyright(C) 2004 \/)\/ *
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* Visual Computing Lab /\/| *
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* ISTI - Italian National Research Council | *
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* \ *
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* All rights reserved. *
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (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, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License (http://www.gnu.org/licenses/gpl.txt) *
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* for more details. *
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* *
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****************************************************************************/
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/****************************************************************************
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History
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$Log: not supported by cvs2svn $
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****************************************************************************/
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#include "preload.h"
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#include "nexusmt.h"
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#include <iostream>
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using namespace std;
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using namespace nxs;
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void Preload::execute() {
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assert(mt);
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while(!get_signaled()) {
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trigger.wait();
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lock.enter();
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while(!queue.size()) {
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trigger.reset();
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lock.leave();
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trigger.wait();
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lock.enter();
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}
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//TODO check we are not loading too much memory!
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assert(queue.size());
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Item &item = queue.back();
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if(item.error == 0 || mt->CanAdd(item)) {
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//we cannot flush since we are not in the openGL thread
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//and flushing includes VBO buffer flushing also.
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mt->GetPatch(item.id, item.error, false);
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queue.pop_back();
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} else
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queue.clear();
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lock.leave();
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}
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}
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