MdeModulePkg: ConSplitterDxe: use U64 mult/div wrappers in AbsPtr scaling

[mirror_edk2.git] / MdeModulePkg / Universal / Console / ConSplitterDxe / ConSplitter.c

diff --git a/MdeModulePkg/Universal/Console/ConSplitterDxe/ConSplitter.c b/MdeModulePkg/Universal/Console/ConSplitterDxe/ConSplitter.c
index af90d5e5e4c3b654d7fa5ea3970d03cd18cc19af..0d6808197b1623bcb0fa64a6fbd3e6fad9278f32 100644 (file)
--- a/MdeModulePkg/Universal/Console/ConSplitterDxe/ConSplitter.c
+++ b/MdeModulePkg/Universal/Console/ConSplitterDxe/ConSplitter.c
@@ -4156,13 +4156,34 @@ ConSplitterAbsolutePointerGetState (
       // Rescale to Con Splitter virtual Absolute Pointer's resolution.\r
       //\r
       if (!(MinX == 0 && MaxX == 0)) {\r
-        State->CurrentX = VirtualMinX + (CurrentState.CurrentX * (VirtualMaxX - VirtualMinX)) / (MaxX - MinX);\r
+        State->CurrentX = VirtualMinX + DivU64x64Remainder (\r
+                                          MultU64x64 (\r
+                                            CurrentState.CurrentX,\r
+                                            VirtualMaxX - VirtualMinX\r
+                                            ),\r
+                                          MaxX - MinX,\r
+                                          NULL\r
+                                          );\r
       }\r
       if (!(MinY == 0 && MaxY == 0)) {\r
-        State->CurrentY = VirtualMinY + (CurrentState.CurrentY * (VirtualMaxY - VirtualMinY)) / (MaxY - MinY);\r
+        State->CurrentY = VirtualMinY + DivU64x64Remainder (\r
+                                          MultU64x64 (\r
+                                            CurrentState.CurrentY,\r
+                                            VirtualMaxY - VirtualMinY\r
+                                            ),\r
+                                          MaxY - MinY,\r
+                                          NULL\r
+                                          );\r
       }\r
       if (!(MinZ == 0 && MaxZ == 0)) {\r
-        State->CurrentZ = VirtualMinZ + (CurrentState.CurrentZ * (VirtualMaxZ - VirtualMinZ)) / (MaxZ - MinZ);\r
+        State->CurrentZ = VirtualMinZ + DivU64x64Remainder (\r
+                                          MultU64x64 (\r
+                                            CurrentState.CurrentZ,\r
+                                            VirtualMaxZ - VirtualMinZ\r
+                                            ),\r
+                                          MaxZ - MinZ,\r
+                                          NULL\r
+                                          );\r
       }\r
 \r
     } else if (Status == EFI_DEVICE_ERROR) {\r