Initial Contribution
diff --git a/libpixelflinger/tinyutils/smartpointer.h b/libpixelflinger/tinyutils/smartpointer.h
new file mode 100644
index 0000000..88032d7
--- /dev/null
+++ b/libpixelflinger/tinyutils/smartpointer.h
@@ -0,0 +1,170 @@
+/*
+ * smartpointer.h
+ * Android
+ *
+ * Copyright 2005 The Android Open Source Project
+ *
+ */
+
+#ifndef ANDROID_SMART_POINTER_H
+#define ANDROID_SMART_POINTER_H
+
+#include <stdint.h>
+#include <sys/types.h>
+#include <stdlib.h>
+
+// ---------------------------------------------------------------------------
+namespace android {
+
+// ---------------------------------------------------------------------------
+
+#define COMPARE(_op_) \
+inline bool operator _op_ (const sp<T>& o) const { \
+ return m_ptr _op_ o.m_ptr; \
+} \
+inline bool operator _op_ (const T* o) const { \
+ return m_ptr _op_ o; \
+} \
+template<typename U> \
+inline bool operator _op_ (const sp<U>& o) const { \
+ return m_ptr _op_ o.m_ptr; \
+} \
+template<typename U> \
+inline bool operator _op_ (const U* o) const { \
+ return m_ptr _op_ o; \
+}
+
+// ---------------------------------------------------------------------------
+
+template <typename T>
+class sp
+{
+public:
+ inline sp() : m_ptr(0) { }
+
+ sp(T* other);
+ sp(const sp<T>& other);
+ template<typename U> sp(U* other);
+ template<typename U> sp(const sp<U>& other);
+
+ ~sp();
+
+ // Assignment
+
+ sp& operator = (T* other);
+ sp& operator = (const sp<T>& other);
+
+ template<typename U> sp& operator = (const sp<U>& other);
+ template<typename U> sp& operator = (U* other);
+
+ // Reset
+ void clear();
+
+ // Accessors
+
+ inline T& operator* () const { return *m_ptr; }
+ inline T* operator-> () const { return m_ptr; }
+ inline T* get() const { return m_ptr; }
+
+ // Operators
+
+ COMPARE(==)
+ COMPARE(!=)
+ COMPARE(>)
+ COMPARE(<)
+ COMPARE(<=)
+ COMPARE(>=)
+
+private:
+ template<typename Y> friend class sp;
+
+ T* m_ptr;
+};
+
+// ---------------------------------------------------------------------------
+// No user serviceable parts below here.
+
+template<typename T>
+sp<T>::sp(T* other)
+ : m_ptr(other)
+{
+ if (other) other->incStrong(this);
+}
+
+template<typename T>
+sp<T>::sp(const sp<T>& other)
+ : m_ptr(other.m_ptr)
+{
+ if (m_ptr) m_ptr->incStrong(this);
+}
+
+template<typename T> template<typename U>
+sp<T>::sp(U* other) : m_ptr(other)
+{
+ if (other) other->incStrong(this);
+}
+
+template<typename T> template<typename U>
+sp<T>::sp(const sp<U>& other)
+ : m_ptr(other.m_ptr)
+{
+ if (m_ptr) m_ptr->incStrong(this);
+}
+
+template<typename T>
+sp<T>::~sp()
+{
+ if (m_ptr) m_ptr->decStrong(this);
+}
+
+template<typename T>
+sp<T>& sp<T>::operator = (const sp<T>& other) {
+ if (other.m_ptr) other.m_ptr->incStrong(this);
+ if (m_ptr) m_ptr->decStrong(this);
+ m_ptr = other.m_ptr;
+ return *this;
+}
+
+template<typename T>
+sp<T>& sp<T>::operator = (T* other)
+{
+ if (other) other->incStrong(this);
+ if (m_ptr) m_ptr->decStrong(this);
+ m_ptr = other;
+ return *this;
+}
+
+template<typename T> template<typename U>
+sp<T>& sp<T>::operator = (const sp<U>& other)
+{
+ if (other.m_ptr) other.m_ptr->incStrong(this);
+ if (m_ptr) m_ptr->decStrong(this);
+ m_ptr = other.m_ptr;
+ return *this;
+}
+
+template<typename T> template<typename U>
+sp<T>& sp<T>::operator = (U* other)
+{
+ if (other) other->incStrong(this);
+ if (m_ptr) m_ptr->decStrong(this);
+ m_ptr = other;
+ return *this;
+}
+
+template<typename T>
+void sp<T>::clear()
+{
+ if (m_ptr) {
+ m_ptr->decStrong(this);
+ m_ptr = 0;
+ }
+}
+
+// ---------------------------------------------------------------------------
+
+}; // namespace android
+
+// ---------------------------------------------------------------------------
+
+#endif // ANDROID_SMART_POINTER_H