gdi32: Keep track of changes to the brush rop, so that we can perform lazy realisation of the brush.

dlls/gdi32/dibdrv/objects.c

@@ -958,6 +958,7 @@ static BOOL solid_brush(dibdrv_physdev *pdev, int num, RECT *rects)
 
 void update_brush_rop( dibdrv_physdev *pdev, INT rop )
 {
+    pdev->brush_rop = rop;
     if(pdev->brush_style == BS_SOLID)
         calc_and_xor_masks(rop, pdev->brush_color, &pdev->brush_and, &pdev->brush_xor);
 }

dlls/gdi32/gdi_private.h

@@ -122,6 +122,7 @@ typedef struct dibdrv_physdev
 
     /* brush */
     UINT brush_style;
+    INT brush_rop;   /* PatBlt, for example, can override the DC's rop2 */
     DWORD brush_color, brush_and, brush_xor;
     BOOL   (* brush_rects)(struct dibdrv_physdev *pdev, int num, RECT *rects);