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Ask Justin Frankel No reasonable question unanswered since 2009! Suggested topics: programming, music, sleep, coffee, etc. Note: please do not ask questions about REAPER features, bugs or scheduling, use the forums instead. Name: Ask: Human (enter yes): [newer questions] [unreplied] | [replied] | [recent comments] | [all] [older questions]

Question: Do you happen to have any idea why my IPlug plug-ins won't create undo points in REAPER when I click e.g. a switch (see tinyurl.com/qcdq47w)? I think it has to do with audioMasterBegin/EndEdit, i.e. without them everything seems to work fine. Asked by Tale (77.168.115.x) on September 9 2013, 12:02pm Reply on September 9 2013, 2:47pm: Probably need to send an audioMasterAutomate as well... this sort of thing might be better to email me with though =) Comment... Question: Do you use any mobile apps to track your running activities (Runkeeper, Nike+ Running)? How do you organize your training program? Asked by asafonov (109.172.98.x) on September 8 2013, 4:29pm Reply on September 8 2013, 9:54pm (edited at September 8 2013, 9:57pm): Strava, though it does tons of things that piss me off (the way it presents running data, the fact that your weekly goals are not rolling but hardcoded to be until Sunday, the fact that they only integrate with instagram and don't allow you to force things uploaded after trips, blah blah blah). I don't want training not to be fun, so I try to set some reasonable goals and figure out the most enjoyable ways to make them happen. I wouldn't want to sacrifice things that are awesome for the sake of running a faster marathon, though. For example, riding the NYC century today probably will get in the way of some runs... Comment... Question: In calculating frames per second, how do you calc how long each frame takes to produce? wouldn't calling some cpu timer function add overhead? Asked by Will (70.173.150.x) on September 8 2013, 5:44am Reply on September 8 2013, 9:53pm (edited at September 8 2013, 9:56pm): Nah, cpuid probably is 100-200 cycles I'd guess, but even the Windows functions are pretty quick (this (google cache) was interesting but probably very out of date). I'd just check the time every X seconds and see how many frames have happened, unless you want a histogram of how long each frame takes to render... Comment... Question: What is your half marathon best time? Asked by asafonov (78.25.121.x) on September 7 2013, 5:04pm Reply on September 7 2013, 11:49pm: My first was 1:59:04, second 1:51:35. I did a 17 mile run this week, and maybe sped a little too much, and my best 13.1 of that was 1:58... I'm scheduled to run the NYC marathon in November, but I am unsure of what pace I'll be doing. Comment... Question: Have you tried Qubes OS (qubes-os.org)? What do you think of it? Asked by Jason (66.176.117.x) on September 7 2013, 2:09pm Reply on September 7 2013, 11:47pm: I haven't... wondering if it is quantifiably more secure than another linux distro... Comment... Question: If you choose to not link to any c runtime (statically or dynamically), how does one do something as simple as allocating memory? Calling the win32 memory functions directly? Asked by Will (24.234.85.x) on September 6 2013, 11:55pm Reply on September 7 2013, 1:04am: Sure, GlobalAlloc or HeapAlloc or VirtualAlloc on win32. Or mmap() on other OSes... Comment... Question: What do you use for sprintf-like stuff on Win32? Standard wsprintf, CRT or something you implemented yourself? Asked by Rodrigo (187.112.73.x) on September 6 2013, 1:32am Reply on September 6 2013, 11:09pm: snprintf(), or _snprintf(), but since the latter behaves differently I have some defs in WDL/wdlcstring.h that help with this... don't use wsprintf(), unless you're trying to make extremely tiny win32 apps... it has issues, and can't do things like %f. Comment... Question: [2 months later..] about askjf.com/index.php?q=2465s (which was meant to be a Q, not a FR btw: "file_in_project_ex" is not documented + one can put dreams into opaque pointers you know :-) about 1) detect new path after save-as : callbacks would be better but I might be able to handle it actually: tinyurl.com/mrxp563, I don't "feel it" though - Asked by frenchos (46.218.205.x) on September 5 2013, 12:24pm Reply on September 6 2013, 11:09pm: how about some email? :) Comment... Question: Can you describe l1/l2 cache and how a programmer can use tools to find out when he's having cache misses? Asked by Will (24.234.85.x) on September 4 2013, 9:32pm Reply on September 5 2013, 12:53am (edited at September 5 2013, 12:57am): The thing to keep in mind is that you have the ability to read and reread a certain amount of memory and it is VERY fast, but if you start trying to access a larger set, it will end up being slower. So if you have some algorithm that is O(N), say, like a radix sort, and when you double N and you measure a large jump in execution time (by a factor of significantly more than 2, for example), you might be thrashing the cache. I could go into more detail on the implementation of caches, I suppose, but it would all be specific to whatever CPU you happened to be using. There are "cache lines" which (if I remember correctly) represent the minimal unit that the cache can represent; if you access a single byte of memory, the cache line that contains that byte will be valid (meaning you can effectively access those bytes with much less overhead than another region of memory which is not in cache). Then there's associativity, which Chrome tells me is misspelled as I type this, and can be read about on Wikipedia. Comment... Question: Do you think you'll be the last standing win32 developer? :) Asked by Will (70.173.150.x) on August 31 2013, 5:03am Reply on September 2 2013, 6:31pm: Nah there are probably more win32 devs than you think Comment... Question: Does REAPER perform well on PPC (G4/G5) machines? I wish was able to test drive it on the latest Power8. Do you favor a particular CPU? Anyway, thanks for all the latest goodness. Asked by gio (79.131.32.x) on August 30 2013, 1:01am Reply on August 30 2013, 1:17am: The quad core i7 in my retina MBP is incredible. REAPER is pretty miserable on G4s, and barely tolerable on G5s. Comment... Question: that was a hell of a release mate. why it took so long? Asked by gio (79.131.32.x) on August 29 2013, 11:37pm Reply on August 30 2013, 12:59am: Probably the easiest explanation is that we started out not knowing exactly where we'd end up? That and other activities in our personal lives... Comment... Question: Should US and friends strike Syria? Asked by Gameboy (89.180.190.x) on August 28 2013, 9:37am Reply on August 28 2013, 6:59pm: I don't have enough information to answer that. Comment... Question: Regarding bingbot, did you adhere to this? www.bing.com/blogs/site_blogs/b/webmaster/archive/2012/05/03/to-... Asked by Will (24.234.85.x) on August 27 2013, 6:06pm Reply on August 27 2013, 8:14pm: I did, the problem is that crawldelay specifies how often it can crawl your ENTIRE WEB SITE, which isn't terribly useful since it would get caught scanning hugely large combinations of URLs with various parameters.. boo. Comment... Question: I was wondering... do you use Amazon S3 or EBS (or something else)? Asked by Tale (77.168.115.x) on August 26 2013, 7:43am Reply on August 26 2013, 6:58pm: EC2 (with EBS volumes) for lots of things, S3 for hosting high traffic static content, and Google for email. Comment... Question: did you support your blog canvas js code experiments on older versions of IE? code.google.com/p/explorercanvas/downloads/list :) Asked by Will (70.173.150.x) on August 24 2013, 11:24pm Reply on August 26 2013, 6:57pm: Haha doubtful Comment... Question: tinyurl.com/c53m7sa -> please watch if you get an hour of spare time. I'm sure you know a lot of these tricks, but it was a very enlightening watch for me. Opinions? :) Asked by EvilDragon (88.207.124.x) on August 22 2013, 6:05pm Reply on August 22 2013, 11:07pm: Didn't watch all, just the first 10-15 minutes, but seemed like the usual stuff =)... good sense of humor ("this code is awful, getting big improvements is easier from terrible code" type comments were funny heh) Comment... Question: How did you meet your wife? Asked by Tony (93.193.65.x) on August 20 2013, 10:32am Reply on August 21 2013, 12:41am: AOL ftw Comment... Question: Does reaper make much use of the gpu? Asked by ees. (69.15.110.x) on August 19 2013, 2:14pm Reply on August 20 2013, 1:38pm: None. Comment... Question: any idea why SWELL SetWindowPos() makes window flicker when resizing? github.com/olilarkin/wdl-ol/blob/n...- any cleaner way to resize? Asked by olilarkin (81.100.230.x) on August 15 2013, 9:36pm Reply on August 15 2013, 11:21pm: Hmm try adding SWP_NOZORDER to the flags? 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