Zoomable Visual Transformation Machine

Tracker: Bugs

7 Performance issue when using lenses (Mac OS X 10.4 / Linux) - ID: 1240098

Last Update: Comment added ( epietrig )

Details:

Bug 1218765 does not affect JVMs that ship with Mac OS X 10.4
(Tiger) (1.4.2_08 and 1.5r1).

However, we now experience a significant drop of the frame rate
when a lens is activated in a view (which was not the case with Mac
OS X 10.3 JVMs).

Lenses perform well under Windows, but also seem to cause
performance issues under Linux.

Submitted:

Emmanuel Pietriga ( epietrig ) - 2005-07-18 07:17

Priority:

Status:

Closed

Resolution:

Fixed

Assigned:

Emmanuel Pietriga

Category:

zvtm

Group:

None

Visibility:

Public

Comments ( 2 )

Date: 2005-08-23 16:49 Sender: epietrig Logged In: YES user_id=616074 I confirm that performance is now good under Mac OS X Tiger. The fix however did not have any effect on Linux/Xorg. I have no idea how to improve things under Linux for now.
Date: 2005-08-22 13:20 Sender: epietrig Logged In: YES user_id=616074 The problem has been solved by manipulating pixels directly in the DattaBuffer instead of calling getPixel() / setPixel() for each transformed pixel. Under Mac OS X Tiger, the performance has improved by a factor of about 10, and the refresh rate is now good. I still have to test this new method under Linux.

Log in to comment.

Attached File

Changes ( 6 )

Field	Old Value	Date	By
status_id	Pending	2005-08-23 16:49	epietrig
resolution_id	None	2005-08-23 16:49	epietrig
close_date	2005-08-22 13:21	2005-08-23 16:49	epietrig
status_id	Open	2005-08-22 13:21	epietrig
close_date	-	2005-08-22 13:21	epietrig
summary	Performance issue when using lenses (Mac OS X 10.4)	2005-08-16 12:25	epietrig

Zoomable Visual Transformation Machine

Tracker: Bugs

Comments ( 2 )

Log in to comment.

Attached File

No Files Currently Attached

Changes ( 6 )

About SourceForge

Find Software

Develop Software

Community

Help