Re: Fw: Re: Google Summer of Code 2008 - joined openprinting+wine project?

[Hin-Tak Leung]

Thanks for the info... I have updated the linux foundation GSOC page with some of my ideas.

Naively, I think it is almost scriptable - get cups to dump the input as temp postscript, use wine to run win32 ghostscript (which works quite well in wine, 
my first-hand experience) to render through GDI and if the printer proxy can receive 
the data that way, let wine send the data out through lpX, libusb or the network... just a thought, and maybe a pipe dream :-). This is slow, but maybe viable?

I have a fair amount of mingw-cross experience, and lately rather into wine.

--- On Wed, 26/3/08, Marcel Partap  wrote:
> From: Marcel Partap 
> Subject: Re: Fw: Re: Google Summer of Code 2008 - joined openprinting+wine project?
> To: [e-mail]
> Cc: [e-mail], "Till Kamppeter" 
> Date: Wednesday, 26 March, 2008, 11:23 PM
> Hi Hin-Tak,
> to sum it up, I was the one working on that project and I
> hit some ehh.. problems ;)
> Anyways, my final result was that I got something out of
> the printer drivers I tried with, but 
> useful results depended on something that is referred to as
> the ominous 'DIB engine'. Coincidently, 
> there was another SoC project done by Jesse Allen which
> started implementing that. That code ended 
> up at http://repo.or.cz/w/wine/dibdrv.git, and just as
> mine, general+AJ's consensus was to start 
> merging it post-1.0. Now I didn't have time to look
> again at it up to now (uni!) but I still want to 
> finish this, just not as part of a SoC project. Also I
> wouldn't recommend that to anyone, except he 
> REEEAAALLY does grok all those mysterious inner-GDI
> concepts (DIB DDB DDI...) that this project 
> touches. I myself have not fully reached insight of how
> best to merge the current winex11drv, 
> wined3d and Jesse's dib engine, but I'll have a
> thorough look at it in the next few days. Another 
> unsolved issue is whether to teach wine's internal GDI
> functions to speak DDI or rather to build a 
> wineddi.drv bridge thing. I tried both approaches but there
> was no clear decision whether to use one 
> or the other, with Alexandre's stance being 'once
> something actually works we can talk about that'.
> Also my code to make printer drivers work depends on some
> stuff within the localspooler code, I have 
> to investigate how far Detlef got it to work regarding
> installation of drivers.
> Oh yeah and that printer proxy was only a DLL to see how
> native windows communicates with the 
> drivers without getting into disassembling stuff.. the
> results scared me, astonishing levels of 
> redundancy.. Anyways, even though all the bits and pieces
> of how to make native drivers actually 
> work with wine are lying around, this is neither a fun nor
> a beginner's task (I know that now *g). 
> That said, I'm going to look into it and hope to come
> up with something in the next few days.
> regards marcel.
>
> Hin-Tak Leung wrote:
> > Hi, anybody on wine-devel want to take this on and
>
> make this more concrete?
> > --- On Wed, 26/3/08, Till Kamppeter
>
>  wrote:
> > > From: Till Kamppeter
>
> > > Subject: Re: Google Summer of Code 2008 - Some
>
> general instructions for reviewing the student's
> applications
> > > To: "Hin-Tak Leung"
>
> > > Cc: "Casey Schaufler"
>
> , "'Glen
> Petrie'" ,
> "Rik van Riel" ,
> "Jeff Licquia" ,
> "Jon Masters" ,
> "Jonathan Riddell" ,
> "Josef Spillner" ,
> [e-mail], "Pekka Enberg"
> > > Date: Wednesday, 26 March, 2008, 4:34 PM
> > > Hin-Tak Leung wrote:
> > > > Hi Till and the rest of the gang.
> > > >
> > > > Two people had got in touch with with about
>
> the
> > > IJS+PDF workflow, and I replied.
> > > > (sorry I don't check the "other"
>
> e-mail
> > > often - I probably should set up re-direction).
> > > Great!
> > > > I thought I should also mentioned that it has
>
> just
> > > came to my attention in some unrelated discussion
>
> on
> > > wine-devel - been doing some non-printing
>
> wine-related
> > > stuff lately - that there *was* a google summer of
>
> code
> > > 2007 project for a
> > > > wine-based native printer driver proxy - this
>
> is the
> > > sort of thing I have had in mind
> > > > for a while and I thought it would be
>
> interesting to
> > > do but I don't have in-depth
> > > > windows knowledge to make it happen, but the
>
> wine
> > > people already did!
> > > >
>
> http://google-summer-of-code-2007-wine.googlecode.com/
> > > > I just downloaded the gsoc 2007 printerproxy
>
> code. It
> > > seems that it is just for use
> > > > from within wine, but it just might be
>
> interesting to
> > > make it more general - via opvp
> > > > or IJS. We should follow up on this.
> > >
> > > If this project still requires coding, it is not
>
> too late
> > > to add it as 
> > > project idea to the ideas pages of both the Linux
> > > Foundation and WINE 
> > > (having it presented at two mentoring
>
> organizations raises
> > > the chances 
> > > to find a student).
> > >
> > > Our ideas page is a Wiki and you can simply edit
>
> it:
> > >
>
> https://www.linux-foundation.org/en/Google_Summer_of_Code
> > > Till
> > Sent from Yahoo! Mail.
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>
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> >
>
> --
>
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