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

[Hin-Tak Leung]

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

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

[Marcel Partap]

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.
> More Ways to Keep in Touch. http://uk.docs.yahoo.com/nowyoucan.html

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.
> > More Ways to Keep in Touch.
>
> http://uk.docs.yahoo.com/nowyoucan.html
> >
>
> --
>
> <div id="signature">
>    "Obstacles are those frightful things you see when
> you take your eyes off your goal."
>
> -- Henry Ford (1863-1947)
>    Change the world! Vote revolution:
> http://hfopi.org/vote-future
>
> </div>

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