gdi32: Fallback to StretchDIBits if the driver doesn't support BitBlt

[Alexandre Julliard]

Huw D M Davies <h.davies1 at physics.ox.ac.uk> writes:

> +        if ((dcSrc = DC_GetDCUpdate( hdcSrc )))
> +        {
> +            dcDst = DC_GetDCPtr( hdcDst );
> +            TRACE("hdcSrc=%p %d,%d -> hdcDest=%p %d,%d %dx%d rop=%06lx\n",
> +                  hdcSrc, xSrc, ySrc, hdcDst, xDst, yDst, width, height, rop);
> +
>              ret = dcDst->funcs->pBitBlt( dcDst->physDev, xDst, yDst, width, height,
>                                           dcSrc ? dcSrc->physDev : NULL, xSrc, ySrc, rop );

This is wrong, dcSrc doesn't always need to be valid for BitBlt.

-- 
Alexandre Julliard
julliard at winehq.org