commit 2df13e4fa12132d0ad8dcf614e0fa45357177f29
Author: Alexander Almaleh <sashoalm@gmail.com>
Date:   Sun Jul 27 22:51:43 2014 +0300

    Fix for issue 17982.

diff --git a/dlls/gdi32/bitblt.c b/dlls/gdi32/bitblt.c
index 762ca0f..5c81ad2 100644
--- a/dlls/gdi32/bitblt.c
+++ b/dlls/gdi32/bitblt.c
@@ -518,6 +518,21 @@ COLORREF nulldrv_GetPixel( PHYSDEV dev, INT x, INT y )
  */
 BOOL WINAPI PatBlt( HDC hdc, INT left, INT top, INT width, INT height, DWORD rop)
 {
+    // Fix for issue 17982.
+    // For PAT_COPY, we delegate the blitting operation to Polygon(),
+    // because it can handle rotation in the XFORM matrix.
+    if (rop == PATCOPY)
+    {
+        POINT p[4] = { left,top, left+width,top, left+width,top+height,
+            left,top+height };
+        // Polygon() uses the pen, but PatBlt() does not, so we select
+        // a NULL_PEN for the operation.
+        HGDIOBJ old = SelectObject(hdc, GetStockObject(NULL_PEN));
+        BOOL ret = Polygon(hdc, p, 4);
+        SelectObject(hdc, old);
+        return ret;
+    }
+
     DC * dc;
     BOOL ret = FALSE;