Home  
Login
Username:

Password:

Remember me



Lost Password?

Register now!
Sections
Who's Online
62 user(s) are online (52 user(s) are browsing Forums)

Members: 1
Guests: 61

AmigaBlitter, more...
Support us!
Recent OS4 Files
OS4Depot.net





ILBM or IFF
Just popping in
Joined:
2015/9/28 23:42
From Bettendorf, IA, USA
Posts: 121
When saving an image with ILBM datatype, should the extension be .ilbm or .iff? Either is right, just looking for a preference from the masses.

   Report Go to top

Re: ILBM or IFF
Just can't stay away
Joined:
2006/12/4 23:15
Posts: 1907
@mritter0

.lbm

or

.ilbm

not .iff as iff is not necessarily an image.


_________________
Blender For OS4.x : Blues : Walker Broad
   Report Go to top

Re: ILBM or IFF
Not too shy to talk
Joined:
2006/11/26 17:45
Posts: 264

I would say the opposite.

First of all do not use .lbm. This is from stupid M$-DOS crowd who have to pack everyting into three letters. It has no meaing for an Amiga person except for a bad smell.

.ilbm would be most meaningful but is unusual.

.iff is used by most programs and people, although it does not uniquely identify a picture file.




   Report Go to top

Re: ILBM or IFF
Not too shy to talk
Joined:
2006/12/1 23:50
From Skærbæk. Denmark
Posts: 265
@thomas

calling it .iff is not very informative.. as it could be grapahics, sound, text or other stuff

personaly I sort of like .lbm

René

_________________
“The best thing about a boolean is even if you are wrong, you are only off by a bit.”
   Report Go to top

Re: ILBM or IFF
Just can't stay away
Joined:
2006/12/4 23:15
Posts: 1907
@thomas

Whilst I do prefer the full #?.ilbm I'm fairly sure that DPaint (early versions at least) used #?.lbm and since DPaint was written by the inventors of IFF that would seem to be definitive version.

Anyway if you are going to pull the "amiga" card there should be no file extension at all...

_________________
Blender For OS4.x : Blues : Walker Broad
   Report Go to top

Re: ILBM or IFF
Just can't stay away
Joined:
2007/2/23 13:49
From Finland, the land of Santa, sauna, sisu and salmiakki
Posts: 1064
Quote:
Anyway if you are going to pull the "amiga" card there should be no file extension at all...

I agree with this.

_________________
Rock lobster bit me, so excuse me.
X1000 + AmigaOS 4.1 FE. Be authentic.
"Anyone can build a fast CPU. The trick is to build a fast system." - Seymour Cray
   Report Go to top

Re: ILBM or IFF
Quite a regular
Joined:
2009/5/1 17:57
From Czech Republic
Posts: 941
@broadblues, TSK

Quote:
Anyway if you are going to pull the "amiga" card there should be no file extension at all...

But then again, file extensions can greatly facilitate and speed up file manipulation, if you use wildcard selection in a manager like Filer. I use that all the time.

_________________
Smoke me a kipper, I'll be back for breakfast!
SAM440ep-flex @ 667MHz / 1GB RAM / Radeon 9250 / AmigaOS 4.1 Final Edition
   Report Go to top

Re: ILBM or IFF
Just can't stay away
Joined:
2006/12/4 23:15
Posts: 1907
@trixie

I quite agree

_________________
Blender For OS4.x : Blues : Walker Broad
   Report Go to top

Re: ILBM or IFF
Just can't stay away
Joined:
2006/12/4 23:15
Posts: 1907
@mritter0

AS you can see there is not really a consensus among the 'masses', you should allow the user to choose...


_________________
Blender For OS4.x : Blues : Walker Broad
   Report Go to top

Re: ILBM or IFF
Just can't stay away
Joined:
2008/1/6 17:56
From Pennsylvania, USA
Posts: 1248
Since file extensions were originally designed as a means of identifying a specific file type, I would say an ILBM image should have a .ilbm extension. If you look at the original IFF definitions or the IFF registry at http://wiki.amigaos.net/wiki/IFF_FORM_and_Chunk_Registry it is obvious that an .iff extension could indicate dozens (or more) of file types and not a specific file type. Almost any Amiga user will recognize a file with an .ilbm extension as an image file but have no idea what kind of file it is if it has an .iff extension.

_________________
Amiga X1000 with 2GB memory & OS 4.1FE + Radeon HD 5450

   Report Go to top

Re: ILBM or IFF
Not too shy to talk
Joined:
2006/12/6 19:36
Posts: 416
@mritter0

I vote for .ilbm .iff is too generic and .lbm just looks odd and is a medical therm.

   Report Go to top

Re: ILBM or IFF
Quite a regular
Joined:
2007/2/27 10:47
From Gravity well
Posts: 575
I dislike programs that insist on extensions. Either read or write.

   Report Go to top

Re: ILBM or IFF
Quite a regular
Joined:
2009/5/1 17:57
From Czech Republic
Posts: 941
@Thematic

Quote:
I dislike programs that insist on extensions. Either read or write.

File extensions have proven to bring more benefits than disadvantages. If they didn't, they would disappear right after the 8.3-character MS-DOS filename limitation was gone. Isn't it that today's operating systems support DOS names long enough to not require any extension, and computers are fast enough to let programs scan file type from the file contents? Yet extensions are still with us.

I see the file extension as a courtesy to the user: it tells me what kind of file I'm dealing with. For example, if I came across a file called "AmericanPsycho", I wouldn't know if it's a film, an audiobook, an e-book (PDF? ePub? plain text?), or a picture of the book's front page. I would have to open or binary scan the file, or try to wild-guess at the format from the file size. All these are extra steps that the file extension saves me from taking.

Another advantage for the user I have already mentioned in a post above: with extensions, I can use the file manager to group-select files automatically based on a wildcard pattern. If there are no extensions, I need to do that manually.

I would also like to add that filetype recognition systems like our DefIcons are not designed to deal with container-based file types via identifying content patterns. For example, a .zip archive, an .rp9 package, and an .epub book will contain the same binary header. The extension is the only way for DefIcons to distinguish between these.


Edited by trixie on 2017/10/7 14:18:19
_________________
Smoke me a kipper, I'll be back for breakfast!
SAM440ep-flex @ 667MHz / 1GB RAM / Radeon 9250 / AmigaOS 4.1 Final Edition
   Report Go to top

Re: ILBM or IFF
Home away from home
Joined:
2007/5/19 13:23
From England
Posts: 3495
@trixie Quote:
File extensions have proven to bring more benefits than disadvantages.

File extension are only still with us, because they are the lowest common denominator (that still works reasonably well across all systems).

There ARE better ways, but it's hard for them to take over, when (for example) Windows doesn't support them. e.g. BeOS/Haiku had/has filetype information stored as filesystem meta data (using it's database-like filesystem).

P.S. I'm not saying whether or not file extensions should be used on the Amiga - that's a more complex discussion. (Although I suspect it should be the default, BUT not enforced/required, which is pretty much how most Amiga programs treat file extensions anyway.)

_________________
Author of the PortablE programming language.
I love using Amiga OS4.1
It is pitch black. You are likely to be eaten by a grue...
   Report Go to top

Re: ILBM or IFF
Just popping in
Joined:
2015/9/28 23:42
From Bettendorf, IA, USA
Posts: 121
@all

In my brief "research" of looking at some archives on Aminet, I did not see any .ilbm images, just .iff. I am going with .ilbm, though.

I agree .iff is vague, but usually you have a drawer for images, a drawer for music, etc.

I agree with Trixie, there should always be an extension. Quick visual recognition. Easy selection.

_________________
Workbench Explorer - A better way to browse drawers
   Report Go to top





[Advanced Search]


Powered by XOOPS 2.0 © 2001-2016 The XOOPS Project