Vember surge synth opensourced, builds and runs on Linux

C0d3man · April 30, 2020, 7:42am

Ahhh, great!

I will start a first try…

Baggypants · April 30, 2020, 11:40am

The race is on…

wyleu · April 30, 2020, 11:47am

Obviously as proof from the winner !!

C0d3man · April 30, 2020, 1:06pm

Hmmm… that’s what I have until now:

#!/bin/bash

cd $ZYNTHIAN_PLUGINS_SRC_DIR
sudo apt-get install --no-install-recommends --yes build-essential libcairo2-dev libxkbcommon-x11-dev libxkbcommon-dev libxcb-cursor-dev libxcb-keysyms1-dev libxcb-util0-dev
git clone https://github.com/falkTX/surge.git
cd surge
git submodule update --init --recursive
cp build-linux.sh build-linux-arm.sh
sed -i 's/x64/armv7ve/g' build-linux-arm.sh
sed -i "s#lv2_dest_path=\"/usr/lib/lv2\"#lv2_dest_path=\"$ZYNTHIAN_PLUGINS_DIR/lv2\"#g" build-linux-arm.sh
./build-linux-arm.sh build --project=lv2 >/dev/null 2>&1 # VERY BAD HACK!
sed -i 's/-msse2//g' surge-lv2.make
sed -i 's/^DEFINES += /DEFINES += -DNEON_SSE=1 /g' surge-lv2.make
#sed -i 's/ -lgcc_s -lgcc//g' surge-lv2.make
#sed -i 's/ -fdata-sections -ffunction-sections//g' surge-lv2.make
./build-linux-arm.sh -v build --project=lv2
./build-linux-arm.sh -v install --project=lv2
./build-linux-arm.sh clean-all
cd ..

But I am getting strange problems when linking:
make[1]: *** [surge-lv2.make:351: target/lv2/Release/Surge.lv2/Surge.so] Bus error

When I link “by hand” (with cut’n’paste the complete command) it works:

root@zynthian:/zynthian/zynthian-sw/plugins/surge# find . -iname "Surge.so"
./target/lv2/Release/Surge.lv2/Surge.so
root@zynthian:/zynthian/zynthian-sw/plugins/surge# ls -al ./target/lv2/Release/Surge.lv2/Surge.so
-rwxr-xr-x 1 root root 3597848 Apr 30 14:04 ./target/lv2/Release/Surge.lv2/Surge.so
root@zynthian:/zynthian/zynthian-sw/plugins/surge# file ./target/lv2/Release/Surge.lv2/Surge.so
./target/lv2/Release/Surge.lv2/Surge.so: ELF 32-bit LSB pie executable, ARM, EABI5 version 1 (GNU/Linux), dynamically linked, BuildID[sha1]=379c776478770db725b013a5c57579567c3f258c, stripped

But the script which should generate the LV2 TTL files from this shared object does stop also:

root@zynthian:/zynthian/zynthian-sw/plugins/surge# python scripts/linux/generate-lv2-ttl.py target/lv2/Release/Surge.lv2/Surge.so
Bus error

For now I will give up, perhaps @Baggypants has some ideas…

Regards, Holger

C0d3man · April 30, 2020, 1:09pm

Ahhh, I forgot to tell:

You need premake5 and Raspian has only premake3… so you have to install by your own:

#!/bin/bash
cd $ZYNTHIAN_PLUGINS_SRC_DIR
git clone https://github.com/premake/premake-core.git
cd premake-core
make -j3 -f Bootstrap.mak linux 
#premake5 gmake
bin/release/premake5 embed
#bin/release/premake5 test
cp bin/release/premake5 /usr/local/bin/premake5
cd ..

Regards, Holger

C0d3man · May 23, 2020, 4:22pm

Hmmm, I tried several hours and made the build script easier, but I am still getting a Bus error for Surge.so.

This is the actual build-script:
#!/bin/bash

cd $ZYNTHIAN_PLUGINS_SRC_DIR
sudo apt-get install --no-install-recommends --yes build-essential libcairo2-dev libxkbcommon-x11-dev libxkbcommon-dev libxcb-cursor-dev libxcb-keysyms1-dev libxcb-util0-dev
git clone https://github.com/falkTX/surge.git
cd surge
git submodule update --init --recursive
premake5 --cc=gcc --os=linux gmake2
sed -i 's/config=debug_x64/config=release_armv7ve/g' surge-lv2.make
sed -i 's/-msse2/-DNEON_SSE=1/g' surge-lv2.make
CXXFLAGS=`echo $CXXFLAGS | sed 's/-munaligned-access //'` make -f surge-lv2.make
rsync -r --delete target/lv2/Release/Surge.lv2 ${ZYNTHIAN_PLUGINS_DIR}/lv2
cd ..

I have no idea… anyone?

Regards, Holger

jofemodo · May 23, 2020, 11:49pm

Same here. Bus error …

C0d3man · May 24, 2020, 8:47am

Ok, that was hard work, a lot of testing and reading. hexdump0815 has already done everything for VCVRack - I just had to find it, test it and put it into a suitable script:

#!/bin/bash
# https://github.com/hexdump0815/surge-arm-build
# https://github.com/nemequ/simde

cd $ZYNTHIAN_PLUGINS_SRC_DIR
sudo apt-get install --no-install-recommends --yes build-essential libcairo2-dev libxkbcommon-x11-dev libxkbcommon-dev libxcb-cursor-dev libxcb-keysyms1-dev libxcb-util0-dev
git clone https://github.com/hexdump0815/surge-arm-build.git
cd surge-arm-build
git checkout 5add960506adc2af3a647698edb8fca3f6ef07f0 # just to be sure to use the right version!
git clone https://github.com/surge-synthesizer/surge.git
cd surge
git checkout release_1.6.6
git submodule update --init --recursive
patch --forward -p0 <../surge-armv7l.patch
find * -type f -exec ../simde-ify.sh {} \;
git clone https://github.com/nemequ/simde.git
sed -i 's/flags { "StaticRuntime" }/flags { staticruntime "On" }/g' premake5.lua
premake5 --cc=gcc --os=linux gmake2
sed -i '/^ifndef verbose/,+4d' surge-lv2.make
sed -i 's, -m64,,g;s,-msse2,-march=armv7-a -mfpu=vfpv3-d16 -mno-unaligned-access,g;s,FORCE_INCLUDE +=,FORCE_INCLUDE += -Isimde/simde,g' surge-*.make
sed -i 's,config=debug_x64,config=release_x64,' surge-*.make
CXXFLAGS="" CFLAGS="" make -f surge-lv2.make
rsync -r --delete target/lv2/Release/Surge.lv2 "${ZYNTHIAN_PLUGINS_DIR}/lv2"
cd ..

Now for the restrictions:

Whatever the reason is: the synth appears as an LV2 effect and not as a generator.
It crashes MOD-UI (but not jalv)
There is (currently) only one (default-)sound available.
The LV2 parameters do not have reasonable names.

Regards, Holger

[EDIT]: PR created.
[EDIT2]: Fixed a problem in the recipe.

Baggypants · July 2, 2020, 8:12am

I’ve opened an Issue

jofemodo · July 7, 2020, 6:52pm

Surge LV2-plugin is already installed on the latest nightly builds, but there is no presets on the bundle. Somebody has LV2-presets for surge? What is the native preset format for Surge? Perhaps we have to write the converter …

lguyome45 · July 7, 2020, 10:03pm

Hi Jofemodo, you can grab additionnal preset on https://github.com/surge-synthesizer/surge-synthesizer.github.io/wiki/Additional-Content
I make an update, but did not find surge plugin, do I need to download the nightly builds?

jofemodo · July 7, 2020, 10:06pm

Yes, you need to download one of the latest nightly builds.

Regards,

spurkopf · July 8, 2020, 6:49am

Okay, found surge in the audio effects tab.
This is how it looks:

whereissurge

and the TAL plugins no longer appear

jofemodo · July 8, 2020, 8:10am

Hi @spurkopf, what SD-image are you using?

Thanks!

lguyome45 · July 8, 2020, 8:14am

I have the same problem, surge happens in audio-fx layer.
I take the last night build https://os.zynthian.org/2020-07-06-zynthianos-buster-lite-armhf-1.0.0.zip

In the log on webconf :

Jul 08 09:13:17 zynthian startx[4827]: ERROR:zynthian_engine: Can't start engine Jalv/Surge => End Of File (EOF). Exception style platform.
Jul 08 09:13:17 zynthian startx[4827]: <pexpect.pty_spawn.spawn object at 0xac57bef0>
Jul 08 09:13:17 zynthian startx[4827]: command: /usr/local/bin/jalv
Jul 08 09:13:17 zynthian startx[4827]: args: ['/usr/local/bin/jalv', '-n', 'Surge-00', 'https://surge-synthesizer.github.io/lv2/surge']
Jul 08 09:13:17 zynthian startx[4827]: buffer (last 100 chars): b''
Jul 08 09:13:17 zynthian startx[4827]: before (last 100 chars): b'k length: 256 frames\r\nMIDI buffers: 32768 bytes\r\nComm buffers: 131072 bytes\r\nUpdate rate: 30.0 Hz\r\n'
Jul 08 09:13:17 zynthian startx[4827]: after: <class 'pexpect.exceptions.EOF'>
Jul 08 09:13:17 zynthian startx[4827]: match: None
Jul 08 09:13:17 zynthian startx[4827]: match_index: None
Jul 08 09:13:17 zynthian startx[4827]: exitstatus: None
Jul 08 09:13:17 zynthian startx[4827]: flag_eof: True
Jul 08 09:13:17 zynthian startx[4827]: pid: 6343
Jul 08 09:13:17 zynthian startx[4827]: child_fd: 34
Jul 08 09:13:17 zynthian startx[4827]: closed: False
Jul 08 09:13:17 zynthian startx[4827]: timeout: 20
Jul 08 09:13:17 zynthian startx[4827]: delimiter: <class 'pexpect.exceptions.EOF'>

jofemodo · July 8, 2020, 8:20am

Yes, there is some problem with surge engine. When running from command line:

root@zynthian:/usr/lib/lv2/Surge.lv2# jalv https://surge-synthesizer.github.io/lv2/surge
Plugin:       https://surge-synthesizer.github.io/lv2/surge
UI:           None
JACK Name:    Surge
Sample rate:  44100 Hz
Block length: 256 frames
MIDI buffers: 32768 bytes
Comm buffers: 131072 bytes
Update rate:  30.0 Hz
Bus error

I’m afraid we have to do some extra work before having the surge engine working on zynthian

spurkopf · July 8, 2020, 8:34am

I also used:
https://os.zynthian.org/2020-07-06-zynthianos-buster-lite-armhf-1.0.0.zip

but we’re getting closer

jofemodo · July 8, 2020, 8:41am

No so close … a “Bus error” is a bad thing, normally meaning that the program binary is trying to execute code that is not well-formatted and the CPU can’t execute. In fact, when looking at the kernel’s log on zynthian, we can see this beautiful messages:

[ 1307.889030] Alignment trap: not handling instruction f9400aef at [<b16fdb62>]
[ 1307.889038] Unhandled fault: alignment exception (0xa21) at 0xb100aba8
[ 1307.889049] pgd = e4da2cc1
[ 1307.889055] [b100aba8] *pgd=29b76003, *pmd=7fd35003
[ 1485.098175] Alignment trap: not handling instruction f9400aef at [<afffdb62>]
[ 1485.098183] Unhandled fault: alignment exception (0xa21) at 0xafed8ba8
[ 1485.098194] pgd = 69ed81e6
[ 1485.098200] [afed8ba8] *pgd=29ea6003, *pmd=7fde0003
[ 1574.723563] Alignment trap: not handling instruction f9400aef at [<affbbb62>]
[ 1574.723571] Unhandled fault: alignment exception (0xa21) at 0xafe08ba8
[ 1574.723583] pgd = 516f01f0
[ 1574.723589] [afe08ba8] *pgd=296c2003, *pmd=7bce1003
[ 2172.624459] Alignment trap: not handling instruction f9400aef at [<afffdb62>]
[ 2172.624466] Unhandled fault: alignment exception (0xa21) at 0xafe4aba8
[ 2172.624478] pgd = fd218542
[ 2172.624484] [afe4aba8] *pgd=28476003, *pmd=7bddc003
[ 2183.980975] Alignment trap: not handling instruction f9400aef at [<b16fdb62>]
[ 2183.980985] Unhandled fault: alignment exception (0xa21) at 0xb1065ba8
[ 2183.980999] pgd = a9cef924
[ 2183.981005] [b1065ba8] *pgd=29bd1003, *pmd=7c7af003

It seems that Surge doesn’t compile for 32 bits platforms.
I’m trying to contact falkTX via freenode webchat:

https://webchat.freenode.net/?channels=#kxstudio,#opensourcemusicians

Regards!

spurkopf · July 8, 2020, 8:52am

C0d3man · July 8, 2020, 8:55am

That’s exactly what first happend when trying to compile. Look at my recipe to fix this…