From 4f2ecd53a9daaf88bb7d075745eefb6e2e4741e0 Mon Sep 17 00:00:00 2001
From: wolfbeast <mcwerewolf@gmail.com>
Date: Wed, 11 Jul 2018 18:11:13 +0200
Subject: Roll back to ANGLE/2845

---
 gfx/angle/src/common/mathutil.h | 43 -----------------------------------------
 1 file changed, 43 deletions(-)

(limited to 'gfx/angle/src/common/mathutil.h')

diff --git a/gfx/angle/src/common/mathutil.h b/gfx/angle/src/common/mathutil.h
index 630b6c088..a82f2ecef 100755
--- a/gfx/angle/src/common/mathutil.h
+++ b/gfx/angle/src/common/mathutil.h
@@ -44,15 +44,6 @@ struct Vector4
     float w;
 };
 
-struct Vector2
-{
-    Vector2() {}
-    Vector2(float x, float y) : x(x), y(y) {}
-
-    float x;
-    float y;
-};
-
 inline bool isPow2(int x)
 {
     return (x & (x - 1)) == 0 && (x != 0);
@@ -765,40 +756,6 @@ constexpr unsigned int iSquareRoot()
     return priv::iSquareRoot<N, 1>::value;
 }
 
-// Sum, difference and multiplication operations for signed ints that wrap on 32-bit overflow.
-//
-// Unsigned types are defined to do arithmetic modulo 2^n in C++. For signed types, overflow
-// behavior is undefined.
-
-template <typename T>
-inline T WrappingSum(T lhs, T rhs)
-{
-    uint32_t lhsUnsigned = static_cast<uint32_t>(lhs);
-    uint32_t rhsUnsigned = static_cast<uint32_t>(rhs);
-    return static_cast<T>(lhsUnsigned + rhsUnsigned);
-}
-
-template <typename T>
-inline T WrappingDiff(T lhs, T rhs)
-{
-    uint32_t lhsUnsigned = static_cast<uint32_t>(lhs);
-    uint32_t rhsUnsigned = static_cast<uint32_t>(rhs);
-    return static_cast<T>(lhsUnsigned - rhsUnsigned);
-}
-
-inline int32_t WrappingMul(int32_t lhs, int32_t rhs)
-{
-    int64_t lhsWide = static_cast<int64_t>(lhs);
-    int64_t rhsWide = static_cast<int64_t>(rhs);
-    // The multiplication is guaranteed not to overflow.
-    int64_t resultWide = lhsWide * rhsWide;
-    // Implement the desired wrapping behavior by masking out the high-order 32 bits.
-    resultWide = resultWide & 0xffffffffll;
-    // Casting to a narrower signed type is fine since the casted value is representable in the
-    // narrower type.
-    return static_cast<int32_t>(resultWide);
-}
-
 }  // namespace gl
 
 namespace rx
-- 
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