investigate sc-supernova

[catfact]

its worth putting a little time into checking the current state of sc-supernova on ARM.

available information and issues online seem a little stale.

[simonvanderveldt]

Finally managed to finish sc 3.9.1 compilation on norns, apparently some combination of CMake flags causes compilation to fail :|
Managed to compile it using the following:

$ cmake -L -DCMAKE_BUILD_TYPE="Release" -DBUILD_TESTING=OFF -DSUPERNOVA=ON -DNATIVE=ON -DSC_WII=OFF -DSC_IDE=OFF -DSC_QT=OFF -DSC_ED=OFF -DSC_EL=OFF -DSC_VIM=OFF ..
$ make

At least starting supernova works fine:

we@norns:~/supercollider/build/server/supernova $ ./supernova 
Supernova booting
samplerate mismatch between command line argument and jack
forcing samplerate of 48000Hz
Supernova ready

Next up: Try to get it to replace scsynth and run some scripts

[simonvanderveldt]

So I had to recompile with -DSC_QT=OFF otherwise sclang failed to start because of some missing Qt dependency.

Also had to do a make install otherwise sclang would complain about missing library items, haven't been able to find a way to run it in a "development" setup using the dependencies from within the project/directory.

Anyway, the basics seem to work:

we@norns:~/supercollider/build $ ./lang/sclang 
compiling class library...
	Found 594 primitives.
	Compiling directory '/usr/local/share/SuperCollider/SCClassLibrary'
	Compiling directory '/home/we/.local/share/SuperCollider/Extensions'
ERROR: Class extension for nonexistent class 'HistoryGui'
     In file:'deprecated/3.9/HistoryGui.sc'
	numentries = 665683 / 7120940 = 0.093
	3845 method selectors, 1852 classes
	method table size 4556556 bytes, big table size 28483760
	Number of Symbols 9118
	Byte Code Size 263984
	compiled 228 files in 0.51 seconds

Info: 4 methods are currently overwritten by extensions. To see which, execute:
MethodOverride.printAll

compile done
localhost : setting clientID to 0.
internal : setting clientID to 0.
Class tree inited in 0.04 seconds


*** Welcome to SuperCollider 3.9.3. *** For help type ctrl-c ctrl-h (Emacs) or :SChelp (vim) or ctrl-U (sced/gedit).
sc3> Server.supernova
-> Server
sc3> s.boot
-> localhost
sc3> booting server 'localhost' on address: 127.0.0.1:57110
Supernova booting
samplerate mismatch between command line argument and jack
forcing samplerate of 48000Hz
Supernova ready
Requested notification messages from server 'localhost'
localhost: no maxLogins info from server process.
localhost: keeping clientID (0) as confirmed by server process.
Shared memory server interface initialized

sc3> { SinOsc.ar * 0.1 }.play(s)
-> Synth('temp__0' : 1000)
sc3> 

The sine tone is audible after this.
I guess the next step is figuring out if it works with the norns extensions or maybe run something more complex, but I wouldn't know what. If anyone has any suggestions please let me know :)

[edit] Removed note about sound being mono, which was purely caused by my lack of SC knowledge :)

[audionerd]

The sine tone is audible after this, though only in mono (left side), not sure why.

{ SinOsc.ar * 0.1 }.play(s) is 1 channel
{ SinOsc.ar * 0.1 ! 2 }.play(s) or { SinOsc.ar.dup * 0.1 }.play(s) would be 2 channels

[tehn]

ok, i've built and installed it, from the 3.9.3 tarball (i should've just cloned github)

the sclang at 100% issue is back, and i've forgotten how this was fixed. searching git issues was not effective... and the build incantations for the build hosted by @artfwo i can't find anywhere... is that somewhere? and if not we should document it and also host these on the monome site.

switching via Server.supernova just seemed like it works, though i don't know what i'm doing.

[artfwo]

the cpu hogging issue is apparently fixed:
supercollider/supercollider#2144

the cmake flags currently used to build packages on device are:

	-DCMAKE_BUILD_TYPE=Release \
	-DNATIVE=1 \
	-DSSE=0 \
	-DSSE2=0 \
	-DENABLE_TESTSUITE=0 \
	-DCMAKE_SKIP_RPATH=1 \
	-DLIBSCSYNTH=0 \
	-DSUPERNOVA=0 \
	-DSC_WII=0 \
	-DSC_IDE=0 \
	-DSC_QT=0 \
	-DSC_ED=0 \
	-DSC_EL=0 \
	-DSC_VIM=1

[tehn]

added file startup.scd to ~/.config/Supercollider/ with contents:

Server.supernova

working well, though some errors:

Exception when reading synthdef: Cannot load synth soft_cut_voice: Unit generator SoftCutHead not installed
Exception when reading synthdef: Cannot load synth faust_comp: Unit generator FaustCompressor not installed
Exception when reading synthdef: Cannot load synth faust_verb: Unit generator FaustZitaVerbLight not installed

not sure if locations differ for supernova.

also, my build still is throwing extremely high CPU for sclang so i obviously messed something up.

[audionerd]

Those UGens might require Supernova-compatible builds. There's a flag you can set when building.

[catfact]

Yeah you need to change norns/SC/wscript

[catfact]

ok sorry for my delay, busy times.

@tehn

my build still is throwing extremely high CPU for sclang so i obviously messed something up.

i'm not getting this anymore. the requisite patch was (finally) merged upstream in commit 3c3688cd2ba2419f9d4ac9a181972509e84665de on june 23.

re: supernova and ugens. still trying to figure out how to do this through waf. may fall back on cmake builds at least to see if things are working for now.

[artfwo]

@catfact i think this should be done for plugins to work.

• add _supernova suffix to plugin binaries.
• add SUPERNOVA define to CXXFLAGS
• add NOVA_SIMD define as well
• make sure header directories nova_simd and nova_tt are present in the includes path.

[catfact]

https://github.com/monome/norns/pull/464/files