PDFBOX-5359: optimize

git-svn-id: https://svn.apache.org/repos/asf/pdfbox/trunk@1911458 13f79535-47bb-0310-9956-ffa450edef68

pdfbox/src/main/java/org/apache/pdfbox/contentstream/PDFStreamEngine.java

@@ -722,6 +722,8 @@ protected void showText(byte[] string) throws IOException
                 fontSize * horizontalScaling, 0, // 0
                 0, fontSize,                     // 0
                 0, textState.getRise());         // 1
+
+        Matrix textMatrix = getGraphicsState().getTextMatrix();
 
         // read the stream until it is empty
         InputStream in = new ByteArrayInputStream(string);
@@ -743,7 +745,7 @@ protected void showText(byte[] string) throws IOException
 
             // text rendering matrix (text space -> device space)
             Matrix ctm = state.getCurrentTransformationMatrix();
-            Matrix textRenderingMatrix = parameters.multiply(getGraphicsState().getTextMatrix()).multiply(ctm);
+            Matrix textRenderingMatrix = parameters.multiply(textMatrix).multiply(ctm);
 
             // get glyph's position vector if this is vertical text
             // changes to vertical text should be tested with PDFBOX-2294 and PDFBOX-1422
@@ -777,7 +779,7 @@ protected void showText(byte[] string) throws IOException
             }
 
             // update the text matrix
-            getGraphicsState().getTextMatrix().translate(tx, ty);
+            textMatrix.translate(tx, ty);
         }
     }