Merge pull request #12010 from TellowKrinkle/AlignUpOpt

Common: Better AlignUp implementation
dolphin-emu · Jun 30, 2023 · ff324ef · ff324ef
2 parents 7a2352f + d844317
commit ff324ef
Showing 1 changed file with 5 additions and 4 deletions.
diff --git a/Source/Core/Common/Align.h b/Source/Core/Common/Align.h
@@ -7,18 +7,19 @@
 
 namespace Common
 {
+
 template <typename T>
-constexpr T AlignUp(T value, size_t size)
+constexpr T AlignDown(T value, size_t size)
 {
   static_assert(std::is_unsigned<T>(), "T must be an unsigned value.");
-  return static_cast<T>(value + (size - value % size) % size);
+  return static_cast<T>(value - value % size);
 }
 
 template <typename T>
-constexpr T AlignDown(T value, size_t size)
+constexpr T AlignUp(T value, size_t size)
 {
   static_assert(std::is_unsigned<T>(), "T must be an unsigned value.");
-  return static_cast<T>(value - value % size);
+  return AlignDown<T>(static_cast<T>(value + (size - 1)), size);
 }
 
 }  // namespace Common