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// Copyright 2016 The SwiftShader Authors. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// Object.cpp: Defines the Object base class that provides
// lifecycle support for GL objects using the traditional BindObject scheme, but
// that need to be reference counted for correct cross-context deletion.
#include "Object.hpp"
#include "Common/Thread.hpp"
namespace gl
{
#ifndef NDEBUG
std::set<Object*> Object::instances;
#endif
Object::Object()
{
referenceCount = 0;
#ifndef NDEBUG
instances.insert(this);
#endif
}
Object::~Object()
{
ASSERT(referenceCount == 0);
#ifndef NDEBUG
ASSERT(instances.find(this) != instances.end()); // Check for double deletion
instances.erase(this);
#endif
}
void Object::addRef()
{
sw::atomicIncrement(&referenceCount);
}
void Object::release()
{
if(dereference() == 0)
{
delete this;
}
}
int Object::dereference()
{
ASSERT(referenceCount > 0);
if(referenceCount > 0)
{
return sw::atomicDecrement(&referenceCount);
}
return 0;
}
void Object::destroy()
{
referenceCount = 0;
delete this;
}
NamedObject::NamedObject(GLuint name) : name(name)
{
}
NamedObject::~NamedObject()
{
}
#ifndef NDEBUG
struct ObjectLeakCheck
{
~ObjectLeakCheck()
{
ASSERT(Object::instances.empty()); // Check for GL object leak at termination
}
};
static ObjectLeakCheck objectLeakCheck;
#endif
}
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