0001949: Ardour slows down when scrolling between multiple tracks - MantisBT

ID	Project	Category	View Status	Date Submitted	Last Update

0001949	ardour	features	public	2007-11-06 15:36	2007-11-06 15:36

Reporter	rdoursenaud	Assigned To
Priority	normal	Severity	minor	Reproducibility	always
Status	new	Resolution	open
Product Version	SVN/2.0-ongoing

Summary	0001949: Ardour slows down when scrolling between multiple tracks
Description	Ardour takes a lot of time to display waveforms in long projects when scrolling trough a lot of tracks. This has been discussed on IRC, here's the log : (16:26:21) rdoursenaud: I felt ardour is slow at displaying waveforms on long projects (16:26:28) las: rdoursenaud: the peaks are stored in floating point format as fractions between -1 and +1 (16:26:34) las: rdoursenaud: what zoom level? (16:26:49) las: rdoursenaud: when closely zoomed in, it reads data from teh original audio file (16:27:00) rdoursenaud: las: various (16:27:24) rdoursenaud: las: but mostly when srolling vertically through the tracks (16:27:28) las: rdoursenaud: could be some problems in that area i guess, i haven't heard many complaints from people recently but that doesn't mean its not real (16:27:40) las: rdoursenaud: ah, thats a different issue. yes, that is sort of buggy/sub-optimal (16:27:53) las: rdoursenaud: the problem there is that the cache for the "offscreen" tracks isn't pre-filled (16:28:01) las: rdoursenaud: this needs to get fixed (16:28:23) las: rdoursenaud: the cache filling is driven by the GUI, and in response to things being "exposed" (16:28:42) las: rdoursenaud: it makes somethings faster but in this case it causes a notable slowdown (16:29:38) rdoursenaud: las: and it's a pain with heavily multitracked projects (16:29:58) las: rdoursenaud: it shouldn't be so hard to fix, its all about finding the time to do it
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Date Modified	Username	Field	Change
2007-11-06 15:36	rdoursenaud	New Issue