1 // Copyright 2016 The SwiftShader Authors. All Rights Reserved. 2 // 3 // Licensed under the Apache License, Version 2.0 (the "License"); 4 // you may not use this file except in compliance with the License. 5 // You may obtain a copy of the License at 6 // 7 // http://www.apache.org/licenses/LICENSE-2.0 8 // 9 // Unless required by applicable law or agreed to in writing, software 10 // distributed under the License is distributed on an "AS IS" BASIS, 11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 // See the License for the specific language governing permissions and 13 // limitations under the License. 14 15 #include "Unknown.hpp" 16 17 #include "Debug.hpp" 18 19 #include <assert.h> 20 21 namespace D3D8 22 { Unknown()23 Unknown::Unknown() 24 { 25 referenceCount = 0; 26 bindCount = 0; 27 } 28 ~Unknown()29 Unknown::~Unknown() 30 { 31 ASSERT(referenceCount == 0); 32 ASSERT(bindCount == 0); 33 } 34 QueryInterface(const IID & iid,void ** object)35 long Unknown::QueryInterface(const IID &iid, void **object) 36 { 37 if(iid == IID_IUnknown) 38 { 39 AddRef(); 40 *object = this; 41 42 return S_OK; 43 } 44 45 *object = 0; 46 47 return NOINTERFACE(iid); 48 } 49 AddRef()50 unsigned long Unknown::AddRef() 51 { 52 return InterlockedIncrement(&referenceCount); 53 } 54 Release()55 unsigned long Unknown::Release() 56 { 57 int current = referenceCount; 58 59 if(referenceCount > 0) 60 { 61 current = InterlockedDecrement(&referenceCount); 62 } 63 64 if(referenceCount == 0 && bindCount == 0) 65 { 66 delete this; 67 } 68 69 return current; 70 } 71 bind()72 void Unknown::bind() 73 { 74 InterlockedIncrement(&bindCount); 75 } 76 unbind()77 void Unknown::unbind() 78 { 79 ASSERT(bindCount > 0); 80 81 InterlockedDecrement(&bindCount); 82 83 if(referenceCount == 0 && bindCount == 0) 84 { 85 delete this; 86 } 87 } 88 }