diff --git a/canvas/source/tools/canvastools.cxx b/canvas/source/tools/canvastools.cxx
index 4b227c0b1c0d..18d103cc1228 100644
--- a/canvas/source/tools/canvastools.cxx
+++ b/canvas/source/tools/canvastools.cxx
@@ -810,10 +810,10 @@ namespace canvas::tools
         // rSpriteSize is mapped with its left,top corner to (0,0)
         // again. This is required to properly render sprite
         // animations to buffer bitmaps.
-        ::basegfx::B2DHomMatrix& calcRectToOriginTransform( ::basegfx::B2DHomMatrix&            o_transform,
-                                                            const ::basegfx::B2DRange&          i_srcRect,
-                                                            const ::basegfx::B2DHomMatrix&      i_transformation )
+        ::basegfx::B2DHomMatrix calcRectToOriginTransform( const ::basegfx::B2DRange&          i_srcRect,
+                                                           const ::basegfx::B2DHomMatrix&      i_transformation )
         {
+            ::basegfx::B2DHomMatrix o_transform;
             if( i_srcRect.isEmpty() )
             {
                 o_transform = i_transformation;
diff --git a/canvas/source/vcl/impltools.cxx b/canvas/source/vcl/impltools.cxx
index cafc59a9b83f..854e8c1618e3 100644
--- a/canvas/source/vcl/impltools.cxx
+++ b/canvas/source/vcl/impltools.cxx
@@ -237,8 +237,7 @@ namespace vclcanvas::tools
             // aligned with (0,0). The method takes the given
             // rectangle, and calculates a transformation that maps
             // this rectangle unscaled to the origin.
-            ::basegfx::B2DHomMatrix aLocalTransform;
-            ::canvas::tools::calcRectToOriginTransform( aLocalTransform,
+            ::basegfx::B2DHomMatrix aLocalTransform = ::canvas::tools::calcRectToOriginTransform(
                                                         aSrcRect,
                                                         rTransform );
 
diff --git a/include/canvas/canvastools.hxx b/include/canvas/canvastools.hxx
index be6f55aafebb..c82f0541a6db 100644
--- a/include/canvas/canvastools.hxx
+++ b/include/canvas/canvastools.hxx
@@ -199,10 +199,6 @@ namespace canvas
             the upper, left corner to the origin, and leaving the size
             untouched.
 
-            @param o_transform
-            Output parameter, to receive the resulting transformation
-            matrix.
-
             @param i_srcRect
             Input parameter, specifies the original source
             rectangle. The resulting transformation will exactly map
@@ -213,12 +209,12 @@ namespace canvas
             translations (if necessary), to exactly map the source
             rectangle to the origin.
 
-            @return a reference to the resulting transformation matrix
+            @return the resulting transformation matrix
 
             @see calcRectToRectTransform()
             @see calcTransformedRectBounds()
         */
-        CANVASTOOLS_DLLPUBLIC ::basegfx::B2DHomMatrix& calcRectToOriginTransform( ::basegfx::B2DHomMatrix&      o_transform,
+        CANVASTOOLS_DLLPUBLIC ::basegfx::B2DHomMatrix calcRectToOriginTransform(
                                                             const ::basegfx::B2DRange&      i_srcRect,
                                                             const ::basegfx::B2DHomMatrix&  i_transformation );