From 61f1adc54dbf2a7720190887a28249804f52e924 Mon Sep 17 00:00:00 2001
From: Jeremy Andrews <athenian200@outlook.com>
Date: Tue, 12 Jul 2022 01:39:20 -0500
Subject: Issue #1956 - Fix symbol visibility issue more elegantly.

All it needed was __declspec(dllexport) on the function I was copy/pasting all over the place...
---
 dom/media/webrtc/MediaTrackConstraints.cpp | 10 ++----
 dom/media/webrtc/MediaTrackConstraints.h   | 52 ------------------------------
 2 files changed, 2 insertions(+), 60 deletions(-)

diff --git a/dom/media/webrtc/MediaTrackConstraints.cpp b/dom/media/webrtc/MediaTrackConstraints.cpp
index 63dab1492f..ffa2e7e853 100644
--- a/dom/media/webrtc/MediaTrackConstraints.cpp
+++ b/dom/media/webrtc/MediaTrackConstraints.cpp
@@ -6,6 +6,7 @@
 #include "MediaTrackConstraints.h"
 #include "mozilla/dom/MediaStreamTrackBinding.h"
 #include "mozilla/Unused.h"
+#include "mozilla/Types.h"
 
 #include <limits>
 #include <algorithm>
@@ -34,15 +35,9 @@ NormalizedConstraintSet::Range<ValueType>::SetFrom(const ConstrainRange& aOther)
   }
 }
 
-// FIXME(Issue #1956): 32-bit MSVC 2022 does not like these functions being
-// defined here. The 64-bit version accepts my workaround for the 32-bit
-// version as valid code, but every other compiler dislikes them being defined
-// elsewhere. 
-
-#if _MSC_VER <= 1900 || !defined(_MSC_VER)
 // The Range code works surprisingly well for bool, except when averaging ideals.
 template<>
-bool
+bool MOZ_EXPORT
 NormalizedConstraintSet::Range<bool>::Merge(const Range& aOther) {
   if (!Intersects(aOther)) {
     return false;
@@ -83,7 +78,6 @@ NormalizedConstraintSet::Range<bool>::FinalizeMerge()
     mMergeDenominator = 0;
   }
 }
-#endif
 
 NormalizedConstraintSet::LongRange::LongRange(
     LongPtrType aMemberPtr,
diff --git a/dom/media/webrtc/MediaTrackConstraints.h b/dom/media/webrtc/MediaTrackConstraints.h
index 0746fc245f..842fea0d2d 100644
--- a/dom/media/webrtc/MediaTrackConstraints.h
+++ b/dom/media/webrtc/MediaTrackConstraints.h
@@ -261,60 +261,8 @@ public:
                         aOther.mMozAutoGainControl, advanced, aList) {}
 };
 
-// FIXME (Issue #1956): 32-bit MSVC 2022 needed this code to be moved here,
-// and the 64-bit version seems fine with it as well. But other compilers
-// are not.
-
-#if _MSC_VER > 1900
-// The Range code works surprisingly well for bool, except when averaging ideals.
-template<>
-bool
-NormalizedConstraintSet::Range<bool>::Merge(const Range& aOther) {
-  if (!Intersects(aOther)) {
-    return false;
-  }
-  Intersect(aOther);
-
-  // To avoid "unsafe use of type 'bool'", we keep counter in mMergeDenominator
-  uint32_t counter = mMergeDenominator >> 16;
-  uint32_t denominator = mMergeDenominator & 0xffff;
-
-  if (aOther.mIdeal.isSome()) {
-    if (mIdeal.isNothing()) {
-      mIdeal.emplace(aOther.Get(false));
-      counter = aOther.Get(false);
-      denominator = 1;
-    } else {
-      if (!denominator) {
-        counter = Get(false);
-        denominator = 1;
-      }
-      counter += aOther.Get(false);
-      denominator++;
-    }
-  }
-  mMergeDenominator = ((counter & 0xffff) << 16) + (denominator & 0xffff);
-  return true;
-}
-
-template<>
-void
-NormalizedConstraintSet::Range<bool>::FinalizeMerge()
-{
-  if (mMergeDenominator) {
-    uint32_t counter = mMergeDenominator >> 16;
-    uint32_t denominator = mMergeDenominator & 0xffff;
-
-    *mIdeal = !!(counter / denominator);
-    mMergeDenominator = 0;
-  }
-}
-#endif
-
-#if _MSC_VER <= 1900 || !defined(_MSC_VER)
 template<> bool NormalizedConstraintSet::Range<bool>::Merge(const Range& aOther);
 template<> void NormalizedConstraintSet::Range<bool>::FinalizeMerge();
-#endif
 
 // Used instead of MediaTrackConstraints in lower-level code.
 struct NormalizedConstraints : public NormalizedConstraintSet
-- 
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