92 lines
2.2 KiB
C++
92 lines
2.2 KiB
C++
/* ScummVM - Graphic Adventure Engine
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*
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* ScummVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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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
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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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 for more details.
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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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*
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* $URL$
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* $Id$
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*
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*/
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#ifndef BACKENDS_PLUGINS_DYNAMICPLUGIN_H
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#define BACKENDS_PLUGINS_DYNAMICPLUGIN_H
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#include "base/plugins.h"
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#include "engines/metaengine.h"
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class DynamicPlugin : public Plugin {
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protected:
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typedef void (*VoidFunc)();
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typedef MetaEngine *(*MetaAllocFunc)();
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MetaEngine *_metaengine;
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virtual VoidFunc findSymbol(const char *symbol) = 0;
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public:
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DynamicPlugin() : _metaengine(0) {}
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const char *getName() const {
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return _metaengine->getName();
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}
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const char *getCopyright() const {
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return _metaengine->getCopyright();
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}
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PluginError createInstance(OSystem *syst, Engine **engine) const {
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return _metaengine->createInstance(syst, engine);
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}
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GameList getSupportedGames() const {
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return _metaengine->getSupportedGames();
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}
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GameDescriptor findGame(const char *gameid) const {
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return _metaengine->findGame(gameid);
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}
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GameList detectGames(const FSList &fslist) const {
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return _metaengine->detectGames(fslist);
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}
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virtual bool loadPlugin() {
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// Query the plugin's name
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MetaAllocFunc metaAlloc = (MetaAllocFunc)findSymbol("PLUGIN_MetaEngine_alloc");
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if (!metaAlloc) {
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unloadPlugin();
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return false;
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}
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_metaengine = metaAlloc();
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if (!_metaengine) {
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unloadPlugin();
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return false;
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}
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return true;
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}
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virtual void unloadPlugin() {
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delete _metaengine;
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}
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};
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#endif
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