[IPP] Addition to PWG Raster Spec

[IPP] Addition to PWG Raster Spec

Yousey, Marc marc.yousey at hp.com
Mon Sep 19 20:32:21 UTC 2011


PWG 5100.7 already defines the attribute 'print-content-optimize' with values of 'photo', 'graphics', 'text' and 'text-and-grahics'.  Can't we just reference that from the ipp everywhere spec as being required?

M.


From: ipp-bounces at pwg.org [mailto:ipp-bounces at pwg.org] On Behalf Of Paul Tykodi
Sent: Monday, September 19, 2011 8:35 AM
To: 'Michael Sweet'
Cc: ipp at pwg.org
Subject: RE: [IPP] Addition to PWG Raster Spec

Hi Mike,

If we follow the idea to put the new value in JPS3 because it is a better fit and we also reach a point where we believe that PWG Raster is stable but JPS3 still needs some work to be completed, I believe that our "customers" could make an informed decision as to whether they believed it would be in their best interest to begin developing software that was compliant with the draft PWG Raster specification knowing that changes were still possible but not probable while we waited for JPS3 to be finished.

Best Regards,

/Paul
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From: ipp-bounces at pwg.org [mailto:ipp-bounces at pwg.org] On Behalf Of Michael Sweet
Sent: Monday, September 19, 2011 10:45 AM
To: Ira McDonald
Cc: ipp at pwg.org
Subject: Re: [IPP] Addition to PWG Raster Spec

Ira,

I agree it isn't a great fit in PWG Raster, but if we put it in JPS3 then JPS3 has to be completed before we can finish PWG Raster...

On Sep 19, 2011, at 6:42 AM, Ira McDonald wrote:

Hi Mike,

About putting "print-content-type" (or whatever name) into
PWG Raster rather than JPS3.

I suggest this is an architectural error - it's NOT just useful
for PWG Raster - it's useful for any raster or other opaque
document format.

It was the broader use case that we were concerned about
in the Open Printing Job Ticket API work.

Cheers,
- Ira

Ira McDonald (Musician / Software Architect)
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Co-Chair - IEEE-ISTO PWG IPP WG
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On Mon, Sep 19, 2011 at 12:31 AM, Michael Sweet <msweet at apple.com<mailto:msweet at apple.com>> wrote:
Glen,

I was more thinking "where to put it in the header", but I've since decided to put PrintQuality in one of the empty cupsInteger slots and put your PrintContentType in the OutputType string field.


Ira,

As for which specification, since the first use is in the PWG Raster Format spec, I'm thinking we should put it in the PWG Raster Format spec and then include it in the list of required IPP Everywhere job template attributes...

Thoughts?



On Sep 12, 2011, at 3:53 PM, Petrie, Glen wrote:



New Attribute
PrintContentType: Text, Text+Graphics, Graphics(vector), Photo
This is combined with "OutputType" to optimize output.
This was big discussion in JTAPI definition and it was determine that is necessary to have both values.

We don't have this in the semantic model or IPP yet. Where do you propose I put this?

I am not sure what you mean "where do you propose I put this"?

If you mean --
Within the PWG Raster it can occupy the first; no, better yet the last 4 bytes of the vender data space and shorten the vendor data space.

If you mean--
Where will the information come from in a SM or IPP "job ticket"; then, I agree there is no source.  But if an application choices to create a PWG Raster file and knows the PrintContentType value; then the application can fill in the field.  The default value of zero ('0') can represent the value of "unknown" or "not specified".  So the enum could be

typedef enum {
            NotSpecifed = 0,
            TextOnly,
            TextAndGraphics,
            GraphicsOnly,
            Photo
} ContentTypeEnum




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