6 files changed, 32 insertions, 18 deletions
diff --git a/indra/llwindow/CMakeLists.txt b/indra/llwindow/CMakeLists.txt
index 1f0820a9f6..6debd54665 100644
--- a/indra/llwindow/CMakeLists.txt
+++ b/indra/llwindow/CMakeLists.txt
@@ -55,6 +55,7 @@ set(llwindow_LINK_LIBRARIES
         llfilesystem
         llxml
         ll::glm
+        ll::glext
         ll::uilibraries
         ll::SDL
         )
@@ -63,7 +64,7 @@ include_directories(${CMAKE_SOURCE_DIR}/llrender)
 
 # Libraries on which this library depends, needed for Linux builds
 # Sort by high-level to low-level
-if (NOT DARWIN)
+if (NOT (DARWIN OR WINDOWS))
   list(APPEND viewer_SOURCE_FILES
        llkeyboardsdl.cpp
        llwindowsdl.cpp
diff --git a/indra/llwindow/llwindow.cpp b/indra/llwindow/llwindow.cpp
index 4f3cc69c75..bff559591f 100644
--- a/indra/llwindow/llwindow.cpp
+++ b/indra/llwindow/llwindow.cpp
@@ -74,12 +74,12 @@ S32 OSMessageBox(const std::string& text, const std::string& caption, U32 type)
     LL_WARNS() << "OSMessageBox: " << text << LL_ENDL;
 #if LL_MESA_HEADLESS // !!! *FIX: (?)
     return OSBTN_OK;
+#elif LL_SDL
+    result = OSMessageBoxSDL(text, caption, type);
 #elif LL_WINDOWS
     result = OSMessageBoxWin32(text, caption, type);
-#elif LL_DARWIN && !LL_SDL
+#elif LL_DARWIN
     result = OSMessageBoxMacOSX(text, caption, type);
-#elif LL_SDL
-    result = OSMessageBoxSDL(text, caption, type);
 #else
 #error("OSMessageBox not implemented for this platform!")
 #endif
@@ -259,12 +259,12 @@ bool LLWindow::copyTextToPrimary(const LLWString &src)
 // static
 std::vector<std::string> LLWindow::getDynamicFallbackFontList()
 {
-#if LL_WINDOWS
+#if LL_SDL
+    return LLWindowSDL::getDynamicFallbackFontList();
+#elif LL_WINDOWS
     return LLWindowWin32::getDynamicFallbackFontList();
-#elif LL_DARWIN && !LL_SDL
+#elif LL_DARWIN
     return LLWindowMacOSX::getDynamicFallbackFontList();
-#elif LL_SDL
-    return LLWindowSDL::getDynamicFallbackFontList();
 #else
     return std::vector<std::string>();
 #endif
@@ -273,12 +273,12 @@ std::vector<std::string> LLWindow::getDynamicFallbackFontList()
 // static
 std::vector<std::string> LLWindow::getDisplaysResolutionList()
 {
-#if LL_WINDOWS
+#if LL_SDL
+    return std::vector<std::string>();
+#elif LL_WINDOWS
     return LLWindowWin32::getDisplaysResolutionList();
-#elif LL_DARWIN && !LL_SDL
+#elif LL_DARWIN
     return LLWindowMacOSX::getDisplaysResolutionList();
-#else
-    return std::vector<std::string>();
 #endif
 }
 
@@ -346,7 +346,7 @@ LLSplashScreen *LLSplashScreen::create()
     return 0;
 #elif LL_WINDOWS
     return new LLSplashScreenWin32;
-#elif LL_DARWIN && !LL_SDL
+#elif LL_DARWIN
     return new LLSplashScreenMacOSX;
 #else
 #error("LLSplashScreen not implemented on this platform!")
@@ -359,7 +359,7 @@ void LLSplashScreen::show()
 {
     if (!gSplashScreenp)
     {
-#if LL_WINDOWS && !LL_MESA_HEADLESS
+#if LL_WINDOWS && !LL_MESA_HEADLESS && !LL_SDL
         gSplashScreenp = new LLSplashScreenWin32;
 #elif LL_DARWIN && !LL_SDL
         gSplashScreenp = new LLSplashScreenMacOSX;
diff --git a/indra/llwindow/llwindow.h b/indra/llwindow/llwindow.h
index 5e06e665f3..37e681c41b 100644
--- a/indra/llwindow/llwindow.h
+++ b/indra/llwindow/llwindow.h
@@ -92,7 +92,7 @@ public:
 
     virtual bool setCursorPosition(LLCoordWindow position) = 0;
     virtual bool getCursorPosition(LLCoordWindow *position) = 0;
-#if LL_WINDOWS
+#if LL_WINDOWS && !LL_SDL
     virtual bool getCursorDelta(LLCoordCommon* delta) = 0;
 #endif
     virtual void showCursor() = 0;
diff --git a/indra/llwindow/llwindowheadless.h b/indra/llwindow/llwindowheadless.h
index 5696b69a59..acec401133 100644
--- a/indra/llwindow/llwindowheadless.h
+++ b/indra/llwindow/llwindowheadless.h
@@ -60,7 +60,7 @@ public:
     /*virtual*/ void toggleVSync(bool enable_vsync) override { }
     /*virtual*/ bool setCursorPosition(LLCoordWindow position) override {return false;}
     /*virtual*/ bool getCursorPosition(LLCoordWindow *position) override {return false;}
-#if LL_WINDOWS
+#if LL_WINDOWS && !LL_SDL
     /*virtual*/ bool getCursorDelta(LLCoordCommon* delta) override { return false; }
 #endif
     /*virtual*/ void showCursor() override {}
diff --git a/indra/llwindow/llwindowsdl.h b/indra/llwindow/llwindowsdl.h
index 144216f658..076d7234bc 100644
--- a/indra/llwindow/llwindowsdl.h
+++ b/indra/llwindow/llwindowsdl.h
@@ -32,7 +32,7 @@
 #include "llwindow.h"
 #include "lltimer.h"
 
-#if !defined(__i386__) && !defined(__x86_64__)
+#if !defined(__i386__) && !defined(__x86_64__) && !_M_X64
 #define SDL_DISABLE_IMMINTRIN_H
 #endif
 #include "SDL2/SDL.h"
diff --git a/indra/llwindow/llwindowwin32.cpp b/indra/llwindow/llwindowwin32.cpp
index d237fdb334..725184eda4 100644
--- a/indra/llwindow/llwindowwin32.cpp
+++ b/indra/llwindow/llwindowwin32.cpp
@@ -160,7 +160,18 @@ HGLRC SafeCreateContext(HDC &hdc)
 
 GLuint SafeChoosePixelFormat(HDC &hdc, const PIXELFORMATDESCRIPTOR *ppfd)
 {
-    return LL::seh::catcher([hdc, ppfd]{ return ChoosePixelFormat(hdc, ppfd); });
+    __try
+    {
+        return ChoosePixelFormat(hdc, ppfd);
+    }
+    __except (EXCEPTION_EXECUTE_HANDLER)
+    {
+        // convert to C++ styled exception
+        // C exception don't allow classes, so it's a regular char array
+        char integer_string[32];
+        sprintf(integer_string, "SEH, code: %lu\n", GetExceptionCode());
+        throw std::exception(integer_string);
+    }
 }
 
 //static
@@ -570,6 +581,7 @@ LLWindowWin32::LLWindowWin32(LLWindowCallbacks* callbacks,
     // Make an instance of our window then define the window class
     mhInstance = GetModuleHandle(NULL);
 
+#if !_M_ARM64
     // Init Direct Input - needed for joystick / Spacemouse
 
     LPDIRECTINPUT8 di8_interface;
@@ -584,6 +596,7 @@ LLWindowWin32::LLWindowWin32(LLWindowCallbacks* callbacks,
     {
         gDirectInput8 = di8_interface;
     }
+#endif
 
     mSwapMethod = SWAP_METHOD_UNDEFINED;