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97 lines
2.9 KiB
C++
97 lines
2.9 KiB
C++
/*
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* All or portions of this file Copyright (c) Amazon.com, Inc. or its affiliates or
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* its licensors.
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*
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* For complete copyright and license terms please see the LICENSE at the root of this
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* distribution (the "License"). All use of this software is governed by the License,
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* or, if provided, by the license below or the license accompanying this file. Do not
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* remove or modify any license notices. This file is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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*
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*/
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// Original file Copyright Crytek GMBH or its affiliates, used under license.
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// Description : Part of CryEngine's extension framework.
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#ifndef CRYINCLUDE_CRYEXTENSION_CRYCREATECLASSINSTANCE_H
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#define CRYINCLUDE_CRYEXTENSION_CRYCREATECLASSINSTANCE_H
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#pragma once
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#include "ICryUnknown.h"
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#include "ICryFactory.h"
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#include "ICryFactoryRegistry.h"
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#include <ISystem.h> // <> required for Interfuscator
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template <class T>
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bool CryCreateClassInstance(const CryClassID& cid, AZStd::shared_ptr<T>& p)
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{
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p = AZStd::shared_ptr<T>();
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ICryFactoryRegistry* pFactoryReg = gEnv->pSystem->GetCryFactoryRegistry();
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if (pFactoryReg)
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{
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ICryFactory* pFactory = pFactoryReg->GetFactory(cid);
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if (pFactory && pFactory->ClassSupports(cryiidof<T>()))
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{
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ICryUnknownPtr pUnk = pFactory->CreateClassInstance();
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AZStd::shared_ptr<T> pT = cryinterface_cast<T>(pUnk);
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if (pT)
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{
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p = pT;
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}
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}
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}
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return p.get() != NULL;
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}
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template <class T>
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bool CryCreateClassInstance(const char* cname, AZStd::shared_ptr<T>& p)
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{
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p = AZStd::shared_ptr<T>();
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ICryFactoryRegistry* pFactoryReg = gEnv->pSystem->GetCryFactoryRegistry();
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if (pFactoryReg)
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{
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ICryFactory* pFactory = pFactoryReg->GetFactory(cname);
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if (pFactory != NULL && pFactory->ClassSupports(cryiidof<T>()))
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{
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ICryUnknownPtr pUnk = pFactory->CreateClassInstance();
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AZStd::shared_ptr<T> pT = cryinterface_cast<T>(pUnk);
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if (pT)
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{
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p = pT;
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}
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}
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}
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return p.get() != NULL;
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}
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template <class T>
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bool CryCreateClassInstanceForInterface(const CryInterfaceID& iid, AZStd::shared_ptr<T>& p)
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{
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p = AZStd::shared_ptr<T>();
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ICryFactoryRegistry* pFactoryReg = gEnv->pSystem->GetCryFactoryRegistry();
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if (pFactoryReg)
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{
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size_t numFactories = 1;
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ICryFactory* pFactory = 0;
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pFactoryReg->IterateFactories(iid, &pFactory, numFactories);
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if (numFactories == 1 && pFactory)
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{
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ICryUnknownPtr pUnk = pFactory->CreateClassInstance();
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AZStd::shared_ptr<T> pT = cryinterface_cast<T>(pUnk);
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if (pT)
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{
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p = pT;
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}
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}
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}
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return p.get() != NULL;
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}
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#endif // CRYINCLUDE_CRYEXTENSION_CRYCREATECLASSINSTANCE_H
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