JRE-119 [ask if ui scale is enabled natively]

(cherry picked from commit 801f45875fd8699edcbda5896210cec191062261)
(cherry picked from commit 20edebdefa)
(cherry picked from commit 9ac3479114)

src/java.desktop/windows/native/libawt/windows/awt_DesktopProperties.cpp

@@ -29,6 +29,7 @@
 #include "mmsystem.h"
 #include "jlong.h"
 #include "awt_DesktopProperties.h"
+#include "awt_Win32GraphicsDevice.h"
 #include "awt_Toolkit.h"
 #include "sun_awt_windows_WDesktopProperties.h"
 #include "java_awt_Font.h"
@@ -82,6 +83,11 @@ void AwtDesktopProperties::GetWindowsParameters() {
 }
 
 void getInvScale(float &invScaleX, float &invScaleY) {
+    if (!AwtWin32GraphicsDevice::IsUiScaleEnabled()) {
+        invScaleX = 1.0f;
+        invScaleY = 1.0f;
+        return;
+    }
     static int dpiX = -1;
     static int dpiY = -1;
     if (dpiX == -1 || dpiY == -1) {

src/java.desktop/windows/native/libawt/windows/awt_Win32GraphicsDevice.cpp

@@ -914,6 +914,14 @@ int AwtWin32GraphicsDevice::GetScreenFromHMONITOR(HMONITOR mon) {
  * End of static deviceIndex-based methods
  */
 
+BOOL AwtWin32GraphicsDevice::IsUiScaleEnabled()
+{
+    return JNU_CallStaticMethodByName(AwtToolkit::GetEnv(),
+                                      NULL,
+                                      "sun/java2d/SunGraphicsEnvironment",
+                                      "isUIScaleEnabled",
+                                      "()Z").z;
+}
 
     const DWORD REQUIRED_FLAGS = (   //Flags which must be set in
      PFD_SUPPORT_GDI |               //in the PixelFormatDescriptor.

src/java.desktop/windows/native/libawt/windows/awt_Win32GraphicsDevice.h

@@ -97,6 +97,7 @@ public:
     static int              GetDefaultDeviceIndex() { return primaryIndex; }
     static HDC              GetDCFromScreen(int screen);
     static int              GetScreenFromHMONITOR(HMONITOR mon);
+    static BOOL             IsUiScaleEnabled(); // if not, be dpi-unaware (backward compatible behaviour)
 
     static int              primaryIndex;
     static BOOL             primaryPalettized;