3 files changed, 10 insertions, 4 deletions
diff --git a/vcl/win/gdi/gdiimpl.cxx b/vcl/win/gdi/gdiimpl.cxx
index 40c7bbbbdb84..cedd5f42a802 100644
--- a/vcl/win/gdi/gdiimpl.cxx
+++ b/vcl/win/gdi/gdiimpl.cxx
@@ -2649,11 +2649,15 @@ bool WinSalGraphicsImpl::drawTransformedBitmap(
     const basegfx::B2DPoint& rX,
     const basegfx::B2DPoint& rY,
     const SalBitmap& rSourceBitmap,
-    const SalBitmap* pAlphaBitmap)
+    const SalBitmap* pAlphaBitmap,
+    double fAlpha)
 {
     assert(dynamic_cast<const WinSalBitmap*>(&rSourceBitmap));
     assert(!pAlphaBitmap || dynamic_cast<const WinSalBitmap*>(pAlphaBitmap));
 
+    if( fAlpha != 1.0 )
+        return false;
+
     const WinSalBitmap& rSalBitmap = static_cast< const WinSalBitmap& >(rSourceBitmap);
     const WinSalBitmap* pSalAlpha = static_cast< const WinSalBitmap* >(pAlphaBitmap);
     std::shared_ptr< Gdiplus::Bitmap > aARGB(rSalBitmap.ImplGetGdiPlusBitmap(pSalAlpha));
diff --git a/vcl/win/gdi/gdiimpl.hxx b/vcl/win/gdi/gdiimpl.hxx
index 0d9d9b30ce2c..3f4d13f1c517 100644
--- a/vcl/win/gdi/gdiimpl.hxx
+++ b/vcl/win/gdi/gdiimpl.hxx
@@ -226,7 +226,8 @@ public:
                 const basegfx::B2DPoint& rX,
                 const basegfx::B2DPoint& rY,
                 const SalBitmap& rSourceBitmap,
-                const SalBitmap* pAlphaBitmap) override;
+                const SalBitmap* pAlphaBitmap,
+                double fAlpha) override;
 
     virtual bool hasFastDrawTransformedBitmap() const override;
 
diff --git a/vcl/win/gdi/salgdi_gdiplus.cxx b/vcl/win/gdi/salgdi_gdiplus.cxx
index 8a85f033783b..13452f5c7a6e 100644
--- a/vcl/win/gdi/salgdi_gdiplus.cxx
+++ b/vcl/win/gdi/salgdi_gdiplus.cxx
@@ -89,10 +89,11 @@ bool WinSalGraphics::drawTransformedBitmap(
     const basegfx::B2DPoint& rX,
     const basegfx::B2DPoint& rY,
     const SalBitmap& rSourceBitmap,
-    const SalBitmap* pAlphaBitmap)
+    const SalBitmap* pAlphaBitmap,
+    double fAlpha)
 {
     return mpImpl->drawTransformedBitmap(rNull, rX, rY,
-            rSourceBitmap, pAlphaBitmap);
+            rSourceBitmap, pAlphaBitmap, fAlpha);
 }
 
 bool WinSalGraphics::hasFastDrawTransformedBitmap() const