From b76cbeb32f6b9045e7b9185b71e7e48e2bd93e4d Mon Sep 17 00:00:00 2001
From: GeorgH93 <git@georgh93.eu>
Date: Wed, 25 Nov 2020 21:21:21 +0100
Subject: [PATCH] Add utils

---
 openVulkanoCpp/Base/Utils.hpp | 30 ++++++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)

diff --git a/openVulkanoCpp/Base/Utils.hpp b/openVulkanoCpp/Base/Utils.hpp
index 15ce087..3f71a3e 100644
--- a/openVulkanoCpp/Base/Utils.hpp
+++ b/openVulkanoCpp/Base/Utils.hpp
@@ -61,5 +61,35 @@ namespace openVulkanoCpp
 		{
 			return (size + alignment - 1) & ~(alignment - 1);
 		}
+
+		static inline constexpr size_t AlignPage(size_t size)
+		{
+			return Align(size, 4096); //TODO detect system page size instead of relying on hardcoded value
+		}
+
+		template<typename T, typename = std::enable_if_t<std::is_unsigned_v<T>>>
+		static inline constexpr bool IsPow2(T i)
+		{
+			return ((i - 1) & i) == 0;
+		}
+
+		template<typename T, typename = std::enable_if_t<std::is_unsigned_v<T>>>
+		static inline constexpr T Log2OfPow2(T n)
+		{
+			assert(n != 0);
+			assert(IsPow2(n));
+
+			T log = 0;
+			while(true)
+			{
+				n >>= 1;
+				if (n == 0)
+				{
+					break;
+				}
+				log++;
+			}
+			return log;
+		}
 	};
 }