Closed
Bug 144067
Opened 23 years ago
Closed 11 months ago
After loading a big image the browser stops refreshing it while moving the scroolbars.
Categories
(Core Graveyard :: Image: Painting, defect, P4)
Tracking
(Not tracked)
RESOLVED
INCOMPLETE
mozilla1.2beta
People
(Reporter: jenner, Unassigned)
References
()
Details
While Mozilla is loading a big image, moving the scroolbars or switching between
applications, correctly refresh the browser display area (and the partially
loaded image piece). When the loading has finished Mozilla stops refreshing and
the display area becomes white (on Modern theme).
(same with this jpeg image - bigger than the one above:
http://oposite.stsci.edu/pubinfo/pr/2002/11/prc/0211a.jpg)
(I have tested this problem in 2 different PC with an Intel 82810E video board
and the other one with an ATi Xpert2000 - same OS, same Mozilla Build)
Comment 1•23 years ago
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||
Using RC2 on Win98SE I can see the picture while loading, no longer after loading.
-> NEW
pi
Status: UNCONFIRMED → NEW
Ever confirmed: true
Comment 2•23 years ago
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this looks ok to me, but i'm cc'ing dcone since this might have something to do
with the size of the image.
Component: Image: Layout → Image: GFX
Priority: -- → P4
Target Milestone: --- → mozilla1.2beta
I have made some test with various images and I noticed the problem isn't
related to the size of the image. Switching Windows color depth to 256 (or to 16
bit color depth) allows Mozilla to refresh correctly the image in the URL above.
So I tried with many image of various sizes and I see that Mozilla stops
refreshing when the image requires more than 16710720 bytes of display memory
(this value isn't accurate but it was the best approximation I found thru my tests).
Loading a 10816x1545 pixels GIF image (8 bpp - 16710720 bytes) in a 8 bpp color
depth Windows enviroment works and Mozilla refresh correctly. Loading a
10817x1545 pixels GIF image (8 bpp - 16712265 bytes), same Windows environment,
let's Mozilla stop refreshing.
Switching Windows to 24 bit color depth let's Mozilla never refresh both the GIF
images above... but it correctly display and refresh a 10816x515 pixels (24 bpp
- 16710720 bytes) JPEG image.
Going on this way I've tried another test: I wrote a simple HTML file with some
<IMG> tag in order to load some (big) image in the page. Mozilla produces quite
the same problem: if the page contains many *different* images Mozilla will
never refresh all the images that exceed the 16MB limit (and using a 24 bpp
color depth Windows environment it's not so difficult to reach that limit...
expecially with the typical garbage-html-programming I see in a wide part of the
WWW).
I hope this can be useful.
QA Contact: tpreston → image.gfx
Updated•18 years ago
|
Assignee: pavlov → nobody
Status: NEW → RESOLVED
Closed: 11 months ago
Resolution: --- → INCOMPLETE
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Description
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