[PATCH] windowscodecs: Implement WICCreateBitmapFromSection.
dmitry at baikal.ru
Thu Mar 15 10:00:37 CDT 2018
Hans Leidekker <hans at codeweavers.com> wrote:
> On Thu, 2018-03-15 at 22:40 +0800, Dmitry Timoshkov wrote:
> > Hans Leidekker <hans at codeweavers.com> wrote:
> > > > + buffer = MapViewOfFile(section, access, 0, offset, 0);
> > > > + if (!buffer) return HRESULT_FROM_WIN32(GetLastError());
> > >
> > > MapViewOfFile wants a multiple of the allocation granularity for the
> > > offset. Does WICCreateBitmapFromSectionEx have the same constraint?
> > I would be very much surprised if it doesn't, a passed in section
> > handle implies using MapViewOfFile to access the bitmap bits.
> It could also map at the base and store the offset.
At the moment I'm not well enough prepared to write a test case, but
feel free to write one. I'd still assume based on syntax similarity
of MapViewOfFile and WICCreateBitmapFromSection that the latter is
modelled around the former one.
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