Utility/Buffer: Refactor Buffer classes

include/Nazara/Utility/Buffer.inl

@@ -7,6 +7,41 @@
 
 namespace Nz
 {
+	inline AbstractBuffer* Buffer::GetImpl() const
+	{
+		return m_impl.get();
+	}
+
+	inline UInt32 Buffer::GetSize() const
+	{
+		return m_size;
+	}
+
+	inline DataStorage Buffer::GetStorage() const
+	{
+		return m_impl->GetStorage();
+	}
+
+	inline BufferType Buffer::GetType() const
+	{
+		return m_type;
+	}
+
+	inline BufferUsageFlags Buffer::GetUsage() const
+	{
+		return m_usage;
+	}
+
+	inline bool Buffer::HasStorage(DataStorage storage) const
+	{
+		return GetStorage() == storage;
+	}
+
+	inline bool Buffer::IsValid() const
+	{
+		return m_impl != nullptr;
+	}
+
 	template<typename... Args>
 	BufferRef Buffer::New(Args&&... args)
 	{