[Psi-devel] Requirements for Avatar icon in Roster

[Cliff Dugal]

On Thursday, June 9, 2005 10:33, Robert Martinez wrote:
> So you agree with me that we should provide SVG _and_ at least one
> resolution of png files per *.jisp?

I would rather see different versions of jisps available. Staying only with 
a few image formats, we already have:

Fixed Size
======
- static gif
- animated gif
- jpeg
- motion jpeg (well, we don't have this, but it completes the list...)
- png
- mng (animated png -- this should replace the Psi hack of png IMHO)

Scalable
======
- SVG
- SVG animation

Other Possibilities
======
Flash
EPS
Acrobat
WMF
BMP, ICO
XPM, PPM

Anyhow, since we don't have any base requirements for Jabber clients to 
support for image types (including PNGs), I would be more inclined to 
distribute different sets of jisps for different clients/platforms. As a 
packager, if Psi works on my platform with SVG, I don't want to distribute 
jisps with PNGs and SVGs -- I only want to distribute the SVG jisps. 
Conversely, if I can only use PNGs, I don't want to distribute SVGs too.

If we are to encourage jisp compatibility, there needs to be an agreement to 
what all clients conforming to the jisp specification *must* support for 
image types. If there isn't a list of image types that all jisp-enabled 
clients can display, then including compatibility images isn't going solve 
the problem for all clients unless you distribute all image formats in your 
jisp, which is completely impractical.
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