Re: XForms: Problem displaying images

Ravi Mehrotra (ravi@csnpl.ren.nic.in)
Mon, 27 Sep 1999 09:43:09 +0530

# To subscribers of the xforms list from Ravi Mehrotra <ravi@csnpl.ren.nic.in> :

Dear T.C.,

Using 8 bpp depth 8 and 16 bpp depth 16 work fine now. However, using
24 bpp depth 24, and 24 bpp depth 32 do not work at all and no image is
displayed in the canvas. Earlier 24 bpp depth 32 was working fine.

I am glad that the 16 bit is working now. Atleast I can get on with my
work. Thanks.

Ravi Mehrotra
National Physical Laboratory
New Delhi, India

"T.C. Zhao" wrote:
>
> # To subscribers of the xforms list from "T.C. Zhao" <tc_zhao@yahoo.com> :
>
> With the help your testing, I've fixed the 16bit display problem.
> Turned out to be a macro expansion bug. It may also fix
> the 24bpp problem as well but I can't test it as my X server
> is 32bpp.
>
> I've updated linux/glibc2.1 and linux/libc5 version. Let me know
> how it goes.
> Thanks, -TC
>
> --- Ravi Mehrotra <ravi@csnpl.ren.nic.in> wrote:
> > # To subscribers of the xforms list from Ravi Mehrotra
> > <ravi@csnpl.ren.nic.in> :
> >
> > Dear T.C.,
> >
> > I did some more tests. I started the Xserver in various modes and
> > tested
> > the
> > image display. Here are my findings.
> >
> > Using 8 bpp depth 8 - no problems.
> > Using 16 bpp depth 16 - once the image is displayed, the form can be
> > moved around by grabbing the window title
> > bar. If the canvas is moved inside
> > the form, the image does not display
> > correctly.
> > Using 24 bpp depth 24 - the image does not display at all even on
> > starting the program
> > Using 32 bpp depth 24 - Everything OK !
> >
> > Hope this gives a clue.
> >
> > Ravi Mehrotra
> > National Physical Laboratory
> > New Delhi, India
> >
>
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