[2/2] oleaut32: Implement a better stub for IPicture::SaveAsFile.

[Alexandre Julliard]

Dmitry Timoshkov <dmitry at baikal.ru> writes:

> Alexandre Julliard <julliard at winehq.org> wrote:
>
>> >> >> > Based on OLEPictureImpl_Save implementation.
>> >> >> 
>> >> >> Surely you don't need to duplicate all of it.
>> >> >
>> >> > Otherwise I would need to rewrite both SaveAsFile() and Save(), which could be
>> >> > inappropriate for the code freeze, so I decided to just fix SaveAsFile() which
>> >> > is clearly broken at the moment. It should be possible to reduce the duplication,
>> >> > but only after 1.8 is released.
>> >> 
>> >> OK, if you promise to do that after 1.8, I'll put it in ;-)
>> >
>> > It should be pretty easy to make Save() call SaveAsFile() as a backend.
>> 
>> I failed to notice in my test run yesterday, but this is causing test
>> failures in gdiplus. It's possible that this would have far-reaching
>> consequences, so I'm going to revert the patch for now. It will have to
>> be redone properly after code freeze. Sorry about that.
>
> Failures in gdiplus tests are caused by broken code in gdiplus, in particular
> GdipCloneImage() is broken. First, it calls IPicture_SaveAsFile() with 'mem_copy'
> parameter set to FALSE, and according to the tests IPicture_SaveAsFile() always
> returns E_FAIL in that case. Second, IPicture_SaveAsFile() has never been writing
> correct data to the provided stream, so despite that it hasn't returned an error
> the result just couldn't be correct. It looks like whoever has written that code
> hasn't tested it at all.

Sure, this will all have to be fixed, and breaking it by making
IPicture_SaveAsFile more correct is actually a good thing since it
reveals problems. Only not during code freeze...

-- 
Alexandre Julliard
julliard at winehq.org