MdeModulePkg/HiiDatabase: Add HiiImageEx implementation.

According to UEFI spec, NewImageEx()/SetImageEx()/DrawImageEx()
implicitly call the non-Ex version interface
of HiiImage protocol.
GetImageEx()/DrawImageIdEx() are the enhanced version of
GetImage()/DrawImageId(), which can support decoding JPEG/PNG
through the help of HiiImageDecoder protocol.

Contributed-under: TianoCore Contribution Agreement 1.0
Reviewed-by: Liming Gao <liming.gao@intel.com>
Cc: Eric Dong <eric.dong@intel.com>
Cc: Dandan Bi <dandan.bi@intel.com>
Signed-off-by: Ruiyu Ni <ruiyu.ni@intel.com>

MdeModulePkg/Universal/HiiDatabaseDxe/HiiDatabaseEntry.c

@@ -39,11 +39,19 @@ HII_DATABASE_PRIVATE_DATA mPrivate = {
     HiiGetFontInfo
   },
   {
-    NULL,
-    NULL,
-    NULL,
-    NULL,
-    NULL
+    HiiNewImage,
+    HiiGetImage,
+    HiiSetImage,
+    HiiDrawImage,
+    HiiDrawImageId
+  },
+  {
+    HiiNewImageEx,
+    HiiGetImageEx,
+    HiiSetImageEx,
+    HiiDrawImageEx,
+    HiiDrawImageIdEx,
+    HiiGetImageInfo
   },
   {
     HiiNewString,
@@ -96,14 +104,6 @@ HII_DATABASE_PRIVATE_DATA mPrivate = {
   NULL
 };
 
-GLOBAL_REMOVE_IF_UNREFERENCED CONST EFI_HII_IMAGE_PROTOCOL mImageProtocol = {
-  HiiNewImage,
-  HiiGetImage,
-  HiiSetImage,
-  HiiDrawImage,
-  HiiDrawImageId
-};
-
 /**
   The default event handler for gHiiKeyboardLayoutChanged
   event group.
@@ -230,12 +230,10 @@ InitializeHiiDatabase (
   }
 
   if (FeaturePcdGet (PcdSupportHiiImageProtocol)) {
-    CopyMem (&mPrivate.HiiImage, &mImageProtocol, sizeof (mImageProtocol));
-
     Status = gBS->InstallMultipleProtocolInterfaces (
                     &Handle,
-                    &gEfiHiiImageProtocolGuid,
-                    &mPrivate.HiiImage,
+                    &gEfiHiiImageProtocolGuid, &mPrivate.HiiImage,
+                    &gEfiHiiImageExProtocolGuid, &mPrivate.HiiImageEx,
                     NULL
                     );