Wednesday, 2017-08-16

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falktxlocalhorse: DO NOT use normal widget toolkits for plugins09:07
falktxplease!09:07
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localhorsefalktx: but it's a lot of work to write a gui toolkit from scratch..10:12
localhorsealso, what is "normal"10:12
xkr47is there a guide somewhere?10:12
JackWinterlocalhorse: the problems is somewhat that it will cause problems when a host or other plugins use the same toolkit...  i think both gtk and qt might be troublesome, apparently juce might work though10:23
localhorseJackWinter: do they use global variables to store gui state?10:25
localhorseor threadlocal?10:25
JackWinternot sure, you might get away with linking the toolkit statically and hiding the symbols, i just know very little about this as it interests me.  am not a linux plugin developer10:26
JackWinteryou might also find more devs at #lad10:26
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falktxlocalhorse: there's symbol conflicts between toolkits, among other issues11:54
falktxwriting your own toolkit if not good either. use what others did already11:55
falktx*is not good11:55
falktxpugl has become quite used in plugins, for the window abstraction11:56
falktxthen you find some opengl/cairo graphics mini-api to put on top11:56
falktxmoony for example https://open-music-kontrollers.ch/lv2/moony/11:56
LAbotTitle: Open Music Kontrollers (at open-music-kontrollers.ch)11:56
falktxit uses pugl + nk11:57
falktxfor my own plugins I use pugl and opengl textures (bitmaps), with some nanovg too11:58
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rgareus+1 for pugl.  openGL is very well spec'ed and binary compatible since maybe 2002 (if you stay with openGl 1.2, textures no fancy shaders)13:12
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DrNIhi there it's me again13:17
DrNIconcerning low-latency on kxstudio 16.04 (not vanilla kxstudio)... very easy:13:18
DrNIapt-get install linux-lowlatency13:18
DrNIreboot13:18
DrNIcadence then shows that lowlatency is on (I gave the audio group realtime permissions in limits.conf somehwere)13:18
DrNIvery good13:18
rgareuswhat does linux-lowlatency do  compared to vanilla-linux and a true preempt-rt kernel?13:19
DrNIwell, what it does exactly, that I do not know13:20
DrNIbut the effect is that i do not get any audio dropouts anymore13:20
DrNIrunning jack with cadenc snd-aloop daemon13:20
rgareusUSB soundcard?13:20
DrNIno, builtin in laptop13:21
DrNII did not get dropouts in ardour using jack13:21
DrNIbut I use the loopback thing of alsa as first audio device for normal applications13:21
DrNIand it caused me dropouts, especially when lots of graphics was going on13:21
DrNI(I do not use pulse, it sucks)13:22
DrNInow what's missing is the selection of the cpu performance governor.13:22
DrNIon my machine at home (now at my office) some LV2s do not operate properly when not in high performance mode13:22
DrNIok got that fixed: apt-get install indicator-cpufreq13:24
DrNIbut my office machine here is much faster than the one at home, so not an issue. money and machine of the company13:24
DrNIactually I work freelance for audio but since I do audio also in my daytime job, I'm doing the experiments here ;)13:24
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localhorsefalktx: thx. what do you mean by 'nk'?19:12
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localhorsenk = nuklear?20:14
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