1 files changed, 51 insertions, 0 deletions
diff --git a/ANGLE/src/libGLESv2/RefCountObject.cpp b/ANGLE/src/libGLESv2/RefCountObject.cpp
new file mode 100644
index 0000000..e3fd36e
--- /dev/null
+++ b/ANGLE/src/libGLESv2/RefCountObject.cpp
@@ -0,0 +1,51 @@
+//
+// Copyright (c) 2002-2010 The ANGLE Project Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+//
+
+// RefCountObject.cpp: Defines the gl::RefCountObject 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.
+// (Concretely, textures, buffers and renderbuffers.)
+
+#include "RefCountObject.h"
+
+namespace gl
+{
+
+RefCountObject::RefCountObject(GLuint id)
+{
+    mId = id;
+    mRefCount = 0;
+}
+
+RefCountObject::~RefCountObject()
+{
+}
+
+void RefCountObject::addRef() const
+{
+    mRefCount++;
+}
+
+void RefCountObject::release() const
+{
+    ASSERT(mRefCount > 0);
+
+    if (--mRefCount == 0)
+    {
+        delete this;
+    }
+}
+
+void RefCountObjectBindingPointer::set(RefCountObject *newObject)
+{
+    // addRef first in case newObject == mObject and this is the last reference to it.
+    if (newObject != NULL) newObject->addRef();
+    if (mObject != NULL) mObject->release();
+
+    mObject = newObject;
+}
+
+}