1 // 2 // Copyright (c) 2002-2010 The ANGLE Project Authors. All rights reserved. 3 // Use of this source code is governed by a BSD-style license that can be 4 // found in the LICENSE file. 5 // 6 7 // RefCountObject.cpp: Defines the gl::RefCountObject base class that provides 8 // lifecycle support for GL objects using the traditional BindObject scheme, but 9 // that need to be reference counted for correct cross-context deletion. 10 // (Concretely, textures, buffers and renderbuffers.) 11 12 #include "RefCountObject.h" 13 14 namespace gl 15 { 16 17 RefCountObject::RefCountObject(GLuint id) 18 { 19 mId = id; 20 mRefCount = 0; 21 } 22 23 RefCountObject::~RefCountObject() 24 { 25 ASSERT(mRefCount == 0); 26 } 27 28 void RefCountObject::addRef() const 29 { 30 mRefCount++; 31 } 32 33 void RefCountObject::release() const 34 { 35 ASSERT(mRefCount > 0); 36 37 if (--mRefCount == 0) 38 { 39 delete this; 40 } 41 } 42 43 void RefCountObjectBindingPointer::set(RefCountObject *newObject) 44 { 45 // addRef first in case newObject == mObject and this is the last reference to it. 46 if (newObject != NULL) newObject->addRef(); 47 if (mObject != NULL) mObject->release(); 48 49 mObject = newObject; 50 } 51 52 } 53
