Bug 560298

Summary:

[GTK] SWT-ImageLoader load animated Gif produce wrong index order

Product:

[Eclipse Project] Platform

Reporter:

Sunneo IceCold <sunneo529>

Component:

SWT

Assignee:

Platform-SWT-Inbox <platform-swt-inbox>

Status:

NEW ---

QA Contact:

Severity:

normal

Priority:

CC:

loskutov, paul-eclipse, Tobias.Steger

Version:

4.14

Keywords:

needinfo

Target Milestone:

---

Hardware:

OS:

Linux

See Also:

https://bugs.eclipse.org/bugs/show_bug.cgi?id=545032

Whiteboard:

Attachments:

Description	Flags
example program	none
countdown animated gif from https://www.pinterest.com/pin/843087992729329007/	none
generated png files in wrong order	none

Description Sunneo IceCold

2020-02-18 22:03:30 EST

after ImageLoader.load() invoked, the imageLoader.data[index] contains frames with wrong order. 

this issue occurred only on Linux, while it works normally on Windows.

Comment 1 Andrey Loskutov

2020-02-20 14:35:26 EST

Thanks for the report. Which exact Eclipse version do you have? Can you please attach a small snippet demonstrating the problem?

Comment 2 Sunneo IceCold

2020-02-24 22:27:30 EST

Created attachment 281914 [details]
example program

this program is cloned from http://www.java2s.com/Tutorial/Java/0300__SWT-2D-Graphics/DisplayananimatedGIF.htm

while it will save frame into /tmp/[index].png after loaded a gif file.

Comment 3 Paul Pazderski

2020-02-25 02:39:33 EST

GTK-SWT is the only which use platform capabilities instead of pure java based implementation for image processing. If you tried it with a recent version and it works on Windows but not on Linux it is most likely related to that.

You may also attach the gif you tried. I tried SWT Snippet194 to create a gif and Snippet141 to load that gif. It failed on Linux...
I also tried one of the gif I made recently made for Eclipse [1]. That worked with Snippet141 and produce png files in correct order using your example.


[1] https://www.eclipse.org/eclipse/news/4.14/platform.php#control-character-console

Comment 4 Sunneo IceCold

2020-02-26 13:57:29 EST

Created attachment 281942 [details]
countdown animated gif from https://www.pinterest.com/pin/843087992729329007/

here's a count down animated gif retrived from 
https://www.pinterest.com/pin/843087992729329007/

Comment 5 Sunneo IceCold

2020-02-26 14:05:29 EST

Created attachment 281943 [details]
generated png files in wrong order

attachment is the output of snippet 

my test platform/environment: 
Xubuntu 18.04
openjdk 11.0.4
eclipse 2019.12