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| From: | Bric |
| Subject: | Re: [Denemo-devel] Speed of Cursor Animation (was Re: Palettes) |
| Date: | Tue, 15 Oct 2013 08:54:57 -0400 |
| User-agent: | PlutoMail 2.0 |
On 10/15/2013 04:08 AM, Richard Shann wrote:
On Mon, 2013-10-14 at 17:00 -0400, Bric wrote:On 10/14/2013 02:29 PM, Richard Shann wrote:On Mon, 2013-10-14 at 18:13 +0100, Richard Shann wrote:It simply shouldn't be possible for the cursor animation to slow things up, as you describe since the re-draw requests are queued so that if the machine is so busy that by the time the draw happens it is too late then all that will result is that the steps of the animation will be skipped (because it looks at the time and decides which step it should draw). (It doesn't know that there are steps, just knows what it should draw at a given number of milliseconds after the start, too late and it should just draw the final result).I wrote the above from memory, but I have just been checking the code and find it is quite untrue :( In fact most of these transitions are 10 steps taken at 20 ms intervals and the steps will be delayed by other things going on. Which only leaves the question - what else do you have going on? The top command might help...off the top of my head (before doing any re-checking): I'm using JACK, religiously.If that (--enable-jack) is so I think you will find that the slider to slow down the audio output is unavailable (on far right of playback controls).
Hmm... i didn't compile it with "--enable-jack". But I /have/ been happily using jack with it. Unless there's a higher level of "happy" here (?)
But that should NOT be the factor here. I already confirmed that turning off cursor highlighting stops the slowness for me. I love the instant skip to whatever measure.yes, that should not affect the drawing - if my reading of the code is right then the number of transition steps and the time of between steps needs to be settable by the user to adapt to faster/slower machines. As I say, you don't need to wait for the cursor to settle before typing in more music... the instant skip has already happened.I don't think I have 3d acceleration or anything like that either.I don't know what people mean by that.
I'm not the 3d acceleration expert either (in terms of understanding nuts & bolts). I just know, as a user, that it's an option, sometimes, (if you've got the hardware and the right drivers). I guess I was trying to say I don't have any visual effects enabled, that conventionally get enabled with 3d-accelerated Ubuntu's (but then, eat up resources — AFAIU)
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