1 files changed, 31 insertions, 0 deletions
diff --git a/common/nextpnr.h b/common/nextpnr.h
index 50465869..efcab9fc 100644
--- a/common/nextpnr.h
+++ b/common/nextpnr.h
@@ -238,6 +238,16 @@ struct CellInfo
     std::unordered_map<IdString, IdString> pins;
 };
 
+struct UIUpdatesRequired
+{
+    bool allUIReload;
+    bool frameUIReload;
+    std::unordered_set<BelId> belUIReload;
+    std::unordered_set<WireId> wireUIReload;
+    std::unordered_set<PipId> pipUIReload;
+    std::unordered_set<GroupId> groupUIReload;
+};
+
 struct BaseCtx
 {
     // --------------------------------------------------------------
@@ -260,6 +270,8 @@ struct BaseCtx
         idstring_idx_to_str = new std::vector<const std::string *>;
         IdString::initialize_add(this, "", 0);
         IdString::initialize_arch(this);
+
+        allUiReload = true;
     }
 
     ~BaseCtx()
@@ -292,6 +304,25 @@ struct BaseCtx
     void refreshUiPip(PipId pip) { pipUiReload.insert(pip); }
 
     void refreshUiGroup(GroupId group) { groupUiReload.insert(group); }
+
+    UIUpdatesRequired getUIUpdatesRequired(void)
+    {
+        UIUpdatesRequired req;
+        req.allUIReload = allUiReload;
+        req.frameUIReload = frameUiReload;
+        req.belUIReload = belUiReload;
+        req.wireUIReload = wireUiReload;
+        req.pipUIReload = pipUiReload;
+        req.groupUIReload = groupUiReload;
+
+        allUiReload = false;
+        frameUiReload = false;
+        belUiReload.clear();
+        wireUiReload.clear();
+        pipUiReload.clear();
+        groupUiReload.clear();
+        return req;
+    }
 };
 
 NEXTPNR_NAMESPACE_END