// Copyright 2016 The SwiftShader Authors. All Rights Reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License 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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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "Unknown.hpp"
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#include "Debug.hpp"
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namespace D3D9
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{
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Unknown::Unknown()
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{
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referenceCount = 0;
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bindCount = 0;
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}
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Unknown::~Unknown()
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{
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ASSERT(referenceCount == 0);
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ASSERT(bindCount == 0);
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}
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long Unknown::QueryInterface(const IID &iid, void **object)
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{
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if(iid == IID_IUnknown)
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{
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AddRef();
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*object = this;
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return S_OK;
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}
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*object = 0;
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return NOINTERFACE(iid);
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}
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unsigned long Unknown::AddRef()
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{
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return InterlockedIncrement(&referenceCount);
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}
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unsigned long Unknown::Release()
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{
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int current = referenceCount;
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if(referenceCount > 0)
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{
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current = InterlockedDecrement(&referenceCount);
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}
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if(referenceCount == 0 && bindCount == 0)
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{
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delete this;
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}
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return current;
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}
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void Unknown::bind()
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{
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InterlockedIncrement(&bindCount);
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}
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void Unknown::unbind()
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{
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ASSERT(bindCount > 0);
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InterlockedDecrement(&bindCount);
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if(referenceCount == 0 && bindCount == 0)
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{
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delete this;
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}
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}
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}
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