From db8ced7e4e4724c38f148ee449c346e447dd3942 Mon Sep 17 00:00:00 2001
From: Pokechu22 <Pokechu022@gmail.com>
Date: Thu, 11 Feb 2021 22:38:07 -0800
Subject: [PATCH] Add FogParam0::FloatValue and FogParam3::FloatValue

This value will be used in the register description; so expose it in a way that can be re-used instead of calculating it in 2 places later.
---
 Source/Core/VideoCommon/BPMemory.cpp | 26 ++++++++++++++++----------
 Source/Core/VideoCommon/BPMemory.h   |  2 ++
 2 files changed, 18 insertions(+), 10 deletions(-)

diff --git a/Source/Core/VideoCommon/BPMemory.cpp b/Source/Core/VideoCommon/BPMemory.cpp
index cb510e9e6a..e3887327d3 100644
--- a/Source/Core/VideoCommon/BPMemory.cpp
+++ b/Source/Core/VideoCommon/BPMemory.cpp
@@ -47,16 +47,26 @@ bool FogParams::IsNaNCase() const
   return a.exp == 255 && c_proj_fsel.c_exp == 255;
 }
 
+float FogParam0::FloatValue() const
+{
+  // scale mantissa from 11 to 23 bits
+  const u32 integral = (sign << 31) | (exp << 23) | (mant << 12);
+  return Common::BitCast<float>(integral);
+}
+
+float FogParam3::FloatValue() const
+{
+  // scale mantissa from 11 to 23 bits
+  const u32 integral = (c_sign << 31) | (c_exp << 23) | (c_mant << 12);
+  return Common::BitCast<float>(integral);
+}
+
 float FogParams::GetA() const
 {
   if (IsNaNCase())
     return 0.0f;
 
-  // scale mantissa from 11 to 23 bits
-  const u32 integral = (static_cast<u32>(a.sign) << 31) | (static_cast<u32>(a.exp) << 23) |
-                       (static_cast<u32>(a.mant) << 12);
-
-  return Common::BitCast<float>(integral);
+  return a.FloatValue();
 }
 
 float FogParams::GetC() const
@@ -67,9 +77,5 @@ float FogParams::GetC() const
     return !a.sign && !c_proj_fsel.c_sign ? -inf : inf;
   }
 
-  // scale mantissa from 11 to 23 bits
-  const u32 integral = (c_proj_fsel.c_sign.Value() << 31) | (c_proj_fsel.c_exp.Value() << 23) |
-                       (c_proj_fsel.c_mant.Value() << 12);
-
-  return Common::BitCast<float>(integral);
+  return c_proj_fsel.FloatValue();
 }
diff --git a/Source/Core/VideoCommon/BPMemory.h b/Source/Core/VideoCommon/BPMemory.h
index 86cc11f7d8..f6d54a6e74 100644
--- a/Source/Core/VideoCommon/BPMemory.h
+++ b/Source/Core/VideoCommon/BPMemory.h
@@ -661,6 +661,7 @@ union FogParam0
   BitField<19, 1, u32> sign;
 
   u32 hex;
+  float FloatValue() const;
 };
 
 union FogParam3
@@ -673,6 +674,7 @@ union FogParam3
                               // backward exp, 7 - backward exp2
 
   u32 hex;
+  float FloatValue() const;
 };
 
 union FogRangeKElement