Scott said:
> Also, will it be able to display JPEGS over 2000 pixels wide?
Hank said:
> According to what I've read here, it's a Mac OS 8/9 limitation, not
IE.
Brad says:
That's not totally true. To be fair to MacOS, the limitation in
QuickDraw is that
the width of a single Quickdraw PixMap in bytes needs to fit in a
certain number of bits.
Because MacIE stores each frame of an image in a single PixMap, and
because JPEG images
are usually 4-bytes per pixel, they are more restricted in their width
than, say, 8-bit GIFs. If MacIE's image
handling were designed with viewing very large images in mind, perhaps
we would have allowed
for "tiling" very large images to get around this, but it didn't seem
worth the added complexity and code.
Then there's a practical issue. At 4-bytes per pixel, even a lowly 2000
pixel wide image takes
8,000 Bytes of -contiguous- storage for each row. A 2000x2000 JPEG
requires a single block
of 16 Million contiguous bytes. That's -in addition- to the memory
required to decompress it and to load
whatever else is on the page.
Because most web pages are designed to fit to the width of a window, and
because one is hard-pressed
even today to find monitors that handle 2000+pixel-wide windows in full
color mode, it seemed like a
reasonable compromise to optimize IE for browsing web pages rather than
wide images. We decided
to crop the image and show the leftmost 2000-pixels rather than fail to
load it altogether because it
was too big.
If any program would handle really wide JPEGs, I'd think JPEGViewer
could, being that it is designed
primarily as an image viewer.
--bp
-----Original Message-----
From: Jimmy Grewal [mailto:[EMAIL PROTECTED]]
Sent: Friday, July 27, 2001 9:57 AM
To: Mac Internet Explorer Talk
Subject: RE:
We have no plans to support opening JPEGS that are that large under OS
8/9...ever. I believe the size limit in the Carbon version of IE is
double that of the non-Carbon version, but I doubt we'll ever change
that either.
For this case, we suggest people save the image to their drive and view
it with Picture Viewer, Preview, or whatever image viewing application
they have available to them.
-Jimmy
-----Original Message-----
From: Harry Zink [mailto:[EMAIL PROTECTED]]
Sent: Friday, July 27, 2001 9:34 AM
To: Mac Internet Explorer Talk
Subject: Re:
on 7/27/01 8:53 AM, Scott Stevenson at [EMAIL PROTECTED] wrote:
> According to what I've read here, it's a Mac OS 8/9 limitation, not
IE.
Therefore, nothing under OS 8/9 can open a JPEG wider than 2000 pixels?
Is
that right?
Harry
---
http://www.zinkdifferent.com
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