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RE: Re: [vox-tech] reading bitmaps in XLib
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RE: Re: [vox-tech] reading bitmaps in XLib



Hi there,

I don't want to use SDL because my application needs to be a split screen
with one portion of it using xine to display movies, and the other being
drawable text or pictures. Xine wants to be full screen and SDL wants to be
full screen. Seeing using xine is not negotiable, and xine sits on an
xwindow, I made the xine screen a child window and the drawable screen a
child window which meant to use SDL I would have to make it sit on a
xwindow, which meant that its surface would have to try and get the handle
to that window, and it all became too complicated. Although x can be painful
sometimes, it's quite good. Anyway, I found some code for x to display jpegs
which is fine, so thanks anyway for clearing that up.

By the way, .au is Australia, you know, that country down under with all the
kangaroos hoping around!:) I have seen the O'Reilly books, they look good...

Thanks for all your help, I really appreciate it!
Regards,
Julie.

> *This message was transferred with a trial version of CommuniGate(tm) Pro*
> On Fri, Oct 17, 2003 at 04:20:06PM +1000, Julie Russell wrote:
> > Hi again,
> >
> > I am writing an application in C++ using Xine, XLib and the common C++
> > library which is just a C++ wrapper for threads. I am trying to
> keep it as
> > simple as possible, and not mix too many languages. I actually want to
> > display a jpeg on an X window, so I thought if I could display a bitmap
> > first, then look for some decompression code to convert the jpeg into a
> > bitmap that would be the way to go. I am pretty new to X so I
> didn't realise
> > that there was different bitmap formats, thanks for that.
>
> Are you doing this to learn how to decode JPEGs?  Or do you just
> want to be
> able to throw one up, and not worry about the technicalities? :^)
>
> If the latter, then there are, of course, libs that'll handle
> JPEG decoding
> for you, and which are Open Source (LGPL, I'm guessing).
>
>
> Back in the day, when I was doing Xlib coding, putting up color bitmaps
> was one of the more irritating and difficult things for me.
> X-Window likes
> to transparently support anything from two-bit graphics (black-n-white) to
> 256 color (paletted) to full-color.  Unfortunately, that ended up meaning
> _I_ had to figure out what to do in the various situations.
>
> This is why I like SDL (and if I bothered messing with them, all of the
> other toolkits)... it handles it for me in the 'appropriate fashion,'
> and I don't need to worry about it, for the most part.
> (e.g., all of my games _should_ run fine on 256 color, 16bit,
> 24bit or 32bit
> displays, and I didn't need to worry about the "how" part ;^) )
>
>
> Your e-mail address (.au) makes me think you're not local :^)
> If you ARE, though (as in, near Davis, CA), I believe LUGOD's library has
> most of the excellent O'Reilly collection of X-Window programming books.
> ( http://www.lugod.org/library/ for details )
>
>
> Good luck!  Keep the questions up... our lists have been too quiet lately
> (okay, okay... they've just had little content _I'm_ interested in ;^) )
>
>
> Late for bed,
>
> -bill!
>
> --
> bill@newbreedsoftware.com                           Got kids?
> Get Tux Paint!
> http://newbreedsoftware.com/bill/
http://newbreedsoftware.com/tuxpaint/

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