implement FE scaling support

xan1242 · Jul 22, 2023 · 6567430 · 6567430
1 parent d336bfd
commit 6567430
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Showing 2 changed files with 29 additions and 2 deletions.
diff --git a/src/Main.hpp b/src/Main.hpp
@@ -122,7 +122,7 @@ void FixWorkingDirectory() {
 void        LoadMapping(std::string userProfileName);
 void        ClearAllMappings();
 std::string gProfileName;
-
+#pragma runtime_checks("", off)
 #ifdef GAME_MW
 std::string oldProfileName;
 uintptr_t   MemCardLoadAddr = 0x005189F0;
@@ -139,7 +139,7 @@ void __stdcall MemoryCard_Load_Hook(const char* profileName) {
 }
 #endif
 
-#pragma runtime_checks("", off)
+
 #if defined(GAME_CARBON) || defined(GAME_PROSTREET)
 char        NFSProfileName[128];
 uintptr_t DALManager_GetString_Addr = DALMANAGER_GETSTRING_ADDR;
@@ -1998,3 +1998,14 @@ extern "C" __declspec(dllexport) bool SetPollingState(bool state) {
   bGlobalDoPolling = state;
   return state;
 }
+
+#ifndef NO_FENG
+extern "C" __declspec(dllexport) float GetFEScale() { return fFEScale; }
+
+extern "C" __declspec(dllexport) float SetFEScale(float val) {
+  fFEScale = val;
+  return fFEScale;
+}
+
+extern "C" __declspec(dllexport) bool GetUseWin32Cursor() { return bUseWin32Cursor; }
+#endif
diff --git a/src/NFS_XtendedInput_FEng.h b/src/NFS_XtendedInput_FEng.h
@@ -34,6 +34,8 @@ bool bMouse3PressedDownOldState = false;
 
 int MouseWheelValue = 0;
 
+float fFEScale = 1.0f;
+
 bool    bConfineMouse              = false;
 int     TimeSinceLastMouseMovement = 0;
 bool    bUseWin32Cursor            = true;
@@ -365,6 +367,20 @@ void UpdateFECursorPos() {
     GetCursorPos(&MousePos);
     GetWindowRect(*(HWND*)GAME_HWND_ADDR, &windowRect);
 
+    // correct the window size to compensate for the change in FE scale
+    if ((*(uint32_t*)&fFEScale) != 0x3F800000) {
+      float SizeX = windowRect.right - windowRect.left;
+      float SizeY = windowRect.bottom - windowRect.top;
+
+      float scSizeX = SizeX * fFEScale;
+      float scSizeY = SizeY * fFEScale;
+
+      windowRect.right -= (LONG)((SizeX - scSizeX) / 2.0f);
+      windowRect.left += (LONG)((SizeX - scSizeX) / 2.0f);
+      windowRect.bottom -= (LONG)((SizeY - scSizeY) / 2.0f);
+      windowRect.top += (LONG)((SizeY - scSizeY) / 2.0f);
+    }
+
     float ratio = 480.0 / (windowRect.bottom - windowRect.top);  // scaling it to 480 height since that's what FE wants
 
     if ((MousePos.x >= windowRect.left) || (MousePos.x <= windowRect.right) && (MousePos.y >= windowRect.top) || (MousePos.y <= windowRect.bottom))