Per app eink "optimizations"

[Renate]

You've all seen the "E-ink Center" under the "Control Center" on Onyx devices.
It lets you customize a bunch of settings on a per app basis.
And maybe you're thinking, "I don't want it to customize anything, just behave normally and I'll use competent apps. End of discussion."
The problem with settings is that they're often not transparent.
Maybe you think that some app starts looking different.
Maybe you set the DPI override to some strange number.

There are seventy-seven separate settings for each app.

Are you sure that they are all what you want them to be?
I can see that I've got 43 apps where the DPI is 350!
I'm not saying that they are all apps that I use.

Spoiler:

Default settings
   autoFreezeConfig/autoFreeze = 0
   autoFreezeConfig/enable = 1
   autoFreezeConfig/supportAutoFreeze = 0
   autoStartConfig/autoStart = 1
   autoStartConfig/enable = 1
   autoStartConfig/supportAdjust = 0
   dpiConfig/dpi = 300
   dpiConfig/enable = 1
   enable = 0
   extraConfig/allowSplashScreen = 0
   extraConfig/enable = 1
   extraConfig/forceFullScreen = 1
   extraConfig/fullPMAccess = 0
   extraConfig/useDialogBorder = 0
   extraConfig/usePageKeyAsVolumeKey = 1
   globalActivityConfig/clsName = ""
   globalActivityConfig/displayConfig/bwMode = 0
   globalActivityConfig/displayConfig/cfaColorBrightness = 0
   globalActivityConfig/displayConfig/cfaColorSaturation = 0
   globalActivityConfig/displayConfig/cfaColorSaturationMin = 0
   globalActivityConfig/displayConfig/contrast = 30
   globalActivityConfig/displayConfig/ditherThreshold = 128
   globalActivityConfig/displayConfig/enable = 0
   globalActivityConfig/displayConfig/enhance = 1
   globalActivityConfig/displayConfig/monoLevel = 10
   globalActivityConfig/enable = 1
   globalActivityConfig/noteConfig/compatibleVersionCode = 0
   globalActivityConfig/noteConfig/enable = 0
   globalActivityConfig/noteConfig/globalStrokeStyle/enable = 1
   globalActivityConfig/noteConfig/globalStrokeStyle/strokeColor = -16777216
   globalActivityConfig/noteConfig/globalStrokeStyle/strokeStyle = 0
   globalActivityConfig/noteConfig/globalStrokeStyle/strokeWidth = 3
   globalActivityConfig/noteConfig/repaintLatency = 2000
   globalActivityConfig/noteConfig/supportNoteConfig = 0
   globalActivityConfig/paintConfig/antiAlisingType = 0
   globalActivityConfig/paintConfig/ditherBitmap = 0
   globalActivityConfig/paintConfig/enable = 0
   globalActivityConfig/paintConfig/fillBrightness = 0
   globalActivityConfig/paintConfig/fillContrast = 0
   globalActivityConfig/paintConfig/fillEAC = 0
   globalActivityConfig/paintConfig/iconBrightness = 0
   globalActivityConfig/paintConfig/iconContrast = 0
   globalActivityConfig/paintConfig/iconEAC = 0
   globalActivityConfig/paintConfig/iconThreshold = 0
   globalActivityConfig/paintConfig/imgEAC = 0
   globalActivityConfig/paintConfig/imgGamma = 0
   globalActivityConfig/paintConfig/quantBits = 3
   globalActivityConfig/paintConfig/textBold = 0
   globalActivityConfig/paintConfig/textEACType = 0
   globalActivityConfig/refreshConfig/animationDuration = 0
   globalActivityConfig/refreshConfig/antiFlicker = 10
   globalActivityConfig/refreshConfig/enable = 1
   globalActivityConfig/refreshConfig/gcInterval = 20
   globalActivityConfig/refreshConfig/supportRegal = 0
   globalActivityConfig/refreshConfig/turbo = 0
   globalActivityConfig/refreshConfig/updateMode = 0
   globalActivityConfig/refreshConfig/useGCForNewSurface = 0
   globalCSSConfig/clsName = ""
   globalCSSConfig/customCSS = ""
   globalCSSConfig/enable = 0
   globalCSSConfig/fontBold = 0
   globalCSSConfig/fontColor = 0
   globalCSSConfig/fontSize = 0
   keyboardConfig/enable = 0
   keyboardConfig/pageKeyMode = 1
   networkConfig/enable = 0
   networkConfig/overrideRules = 0
   pkgName = ""
   rotationConfig/enable = 1
   rotationConfig/overrideRotation = -1
   scrollArgs/duration = 600
   scrollArgs/endXPercent = 0.500000
   scrollArgs/endYPercent = 0.800000
   scrollArgs/sampleTime = 16
   scrollArgs/startXPercent = 0.500000
   scrollArgs/startYPercent = 0.200000
   supportEAC = 1

Ultimately I will make this be able to do updates.
Right now, it's 100% safe and read only.
You can try this if you like.
Just rename it without extension.

C:\>adb push onyxcfg data/local/tmp
C:\>adb shell
# cd /data/local/tmp
# chmod 755 onyxcfg
# ./onyxcfg /onyxconfig/eac_config -d
# ./onyxcfg /onyxconfig/eac_config

The first command will show the default.
The second command will list all the packages and how they differ from the default.
You probably need to be rooted to see /onyxconfig/eac_config

[Renate]

So, like everything about Onyx, it's more complicated than it seems.
There are two different "default" settings.

Let's say that you adjust an app's settings.
Then you install for the first time a new app.
That will take its settings from the last time you played with any app's settings.

This is a new version and it should make things clearer.
It also describes update modes.

Note also that while the Eink Center relies on UiSystem, the deeper settings and actual savings of settings needs kcb-release, i.e. com.onyx.

Edit: If you plan on playing directly with eac_config, make sure that it stays:

-rw------- 1 system system  6838 2024-08-27 08:53 eac_config

That's chown 1000:1000, chmod 600

[Renate]

So, just to clarify...

The eac_config holds per app configurations.
It can also hold per activity configurations under the per app, but this seems rarely used.
Your configuration may list packages that you have never run or even have.
My Poke3 had 400 kB of cruft, my Poke5 80 kB.

onyxcfg -?                           // usage
onyxcfg eac_config                   // full dump
onyxcfg eac_config com.whatever.demo // dump single package
onyxcfg eac_config -l                // list packages
onyxcfg eac_config -d                // show default

[DanyDanman]

Hi, I was wondering if you add support for writing to this file.

I want patch a specific app that is not from onyx. Could you help me?

[Renate]

You can just open the Eink center and set the values there. Ok, there are more values in eac_config than are accessible by the GUI. But the main ones are accessible.

If you are careful and you have a good text editor like Notepad++ you can edit the file. Trying to edit one line JSON is too confusing so I wouldn't recommend that. But you can do a search/replace for 350 to 300. It will set the DPI to the correct value without having to edit them all.

I haven't been working on this lately. Mostly I turn the "master switch" off in the GUI for apps that I care about.

[starkruzr]

does anyone have the class name for Google Keep that lets you enable ink optimization per this guide? https://gist.github.com/calliecamero...8bd493380e3b7e I've been hunting for it in Android Studio and don't seem to have found the magic bullet yet. I did get DrawNote, Excalidraw, and Joplin's JSDraw plugin.

[Excelsidraw]

Originally Posted by starkruzr

does anyone have the class name for Google Keep that lets you enable ink optimization per this guide? https://gist.github.com/calliecamero...8bd493380e3b7e I've been hunting for it in Android Studio and don't seem to have found the magic bullet yet. I did get DrawNote, Excalidraw, and Joplin's JSDraw plugin.

Hi Starkruzr, I am trying to get obsidian excalidraw working but it doesnt seem to be working. This is the code I have got but I dont have handwriting option after rebooting? do you have the code you used for obsidian excalidraw by any chance?

"md.obsidian":{"activityConfigMap":{},"autoFreezeC onfig":{"autoFreeze":false,"enable":true,"supportA utoFreeze":true},"autoStartConfig":{"autoStart":fa lse,"enable":true,"supportAdjust":true},"cssConfig Map":{},"dpiConfig":{"dpi":350,"enable":true},"ena ble":true,"extraConfig":{"allowSplashScreen":false ,"enable":true,"forceFullScreen":false,"fullPMAcce ss":false,"useDialogBorder":false,"usePageKeyAsVol umeKey":true},"globalActivityConfig":{"clsName":"" ,"displayConfig":{"bwMode":0,"cfaColorBrightness": 0,"cfaColorSaturation":0,"cfaColorSaturationMin":0 ,"contrast":30,"ditherThreshold":128,"enable":true ,"enhance":true,"monoLevel":10},"enable":true,"not eConfig":{"compatibleVersionCode":0,"drawViewKey": "com.getcapacitor.CapacitorWebView","enable":true, "globalStrokeStyle":{"enable":true,"strokeColo r":-16777216,"strokeExtraArgs":[],"strokeParams":[],"strokeStyle":0,"strokeWidth":3},"repaintLatency" :2000,"styleMap":{},"supportNoteConfig":true}

[Renate]

Originally Posted by Excelsidraw

This is the code I have got...

Sorry, without the code /code it puts in random spaces which confuse the heck out of me. "not eConfig"???

"md.obsidian":{"activityConfigMap":{},"autoFreezeConfig":{"autoFreeze":false,"enable":true,"supportAutoFreeze":true},"autoStartConfig":{"autoStart":false,"enable":true,"supportAdjust":true},"cssConfigMap":{},"dpiConfig":{"dpi":350,"enable":true},"enable":true,"extraConfig":{"allowSplashScreen":false,"enable":true,"forceFullScreen":false,"fullPMAccess":false,"useDialogBorder":false,"usePageKeyAsVolumeKey":true},"globalActivityConfig":{"clsName":"","displayConfig":{"bwMode":0,"cfaColorBrightness":0,"cfaColorSaturation":0,"cfaColorSaturationMin":0,"contrast":30,"ditherThreshold":128,"enable":true,"enhance":true,"monoLevel":10},"enable":true,"noteConfig":{"compatibleVersionCode":0,"drawViewKey": "com.getcapacitor.CapacitorWebView","enable":true,"globalStrokeStyle":{"enable":true,"strokeColor":-16777216,"strokeExtraArgs":[],"strokeParams":[],"strokeStyle":0,"strokeWidth":3},"repaintLatency":2000,"styleMap":{},"supportNoteConfig":true}

If you like you can PM me your whole eac_config. It will tell me what apps you use though. Or @starkruzr if you want to send me yours. I have a utility for dumping.

[starkruzr]

Originally Posted by Renate

Sorry, without the code /code it puts in random spaces which confuse the heck out of me. "not eConfig"???

"md.obsidian":{"activityConfigMap":{},"autoFreezeConfig":{"autoFreeze":false,"enable":true,"supportAutoFreeze":true},"autoStartConfig":{"autoStart":false,"enable":true,"supportAdjust":true},"cssConfigMap":{},"dpiConfig":{"dpi":350,"enable":true},"enable":true,"extraConfig":{"allowSplashScreen":false,"enable":true,"forceFullScreen":false,"fullPMAccess":false,"useDialogBorder":false,"usePageKeyAsVolumeKey":true},"globalActivityConfig":{"clsName":"","displayConfig":{"bwMode":0,"cfaColorBrightness":0,"cfaColorSaturation":0,"cfaColorSaturationMin":0,"contrast":30,"ditherThreshold":128,"enable":true,"enhance":true,"monoLevel":10},"enable":true,"noteConfig":{"compatibleVersionCode":0,"drawViewKey": "com.getcapacitor.CapacitorWebView","enable":true,"globalStrokeStyle":{"enable":true,"strokeColor":-16777216,"strokeExtraArgs":[],"strokeParams":[],"strokeStyle":0,"strokeWidth":3},"repaintLatency":2000,"styleMap":{},"supportNoteConfig":true}

If you like you can PM me your whole eac_config. It will tell me what apps you use though. Or @starkruzr if you want to send me yours. I have a utility for dumping.

so, for the Note Air 4C things appear to have changed. possibly this change will happen for all >= OS 4.0 devices. now the data is in /onyxconfig/mmkv/onyx_config and is partially binary, and appears to be "checked" against a .crc file it generates every time it updates the file. after searching "Boox mmkv" it sounds like you have some experience with this MMKV nonsense in the past. do you know how to edit this? I tried an mmkv utility (https://github.com/topkan/mmkv-cli) but it doesn't seem to understand anything in the directory. it also seems to update the file very frequently; maybe every time you turn the device on.

[starkruzr]

oh, and answering my own question from earlier about how to find the class name for the ink surface of the app you're using: you can do this with ADB. launch the app, maybe write something on the ink surface just to be safe, and then on whatever machine you're running adb on, connected to your device:

adb shell 'dumpsys activity activities | grep ResumedActivity'

[Renate]

Yeah, but I think that the drawViewKey is supposed to be the ViewId of the drawing surface, not the class. You can specify the class if you like in the activityConfigMap and put the drawViewKey there.

[Trender22]

Originally Posted by starkruzr

so, for the Note Air 4C things appear to have changed. possibly this change will happen for all >= OS 4.0 devices. now the data is in /onyxconfig/mmkv/onyx_config and is partially binary, and appears to be "checked" against a .crc file it generates every time it updates the file. after searching "Boox mmkv" it sounds like you have some experience with this MMKV nonsense in the past. do you know how to edit this? I tried an mmkv utility (https://github.com/topkan/mmkv-cli) but it doesn't seem to understand anything in the directory. it also seems to update the file very frequently; maybe every time you turn the device on.

Thanks for your reference to mmkv-cli I was able to update the keys in the onyx_config store 'offline': I downloaded it to my laptop, did mmlv-cli get, edited key content in a text editor and then written it to the store using mmlv-cli set.

However as you correctly noted the store is being updated very frequently on the device itself and so it will get overwritten quickly after I replace it with my offline copy.

I suppose we need to boot the device into some mode where we can access the filesystem (via ADB?), but Onyx software that writes into onyx_config is not started.
Alternatively I'm thinking onyx_config can be made read-only, replaced with the offline updated copy and then device rebooted normally.

I have no idea how to do booting without Onyx software, but I could try the second route. However I'm worried that reboot may fail with this config file being read-only and I will end but with bricked device...

Hence seeking some advice here from more experienced people.

TIA

[Renate]

Originally Posted by Trender22

I suppose we need to boot the device into some mode...

Start your device normally, connect with (rooted) ADB, issue a "stop" command, pull the file, edit, replace, issue a "start" command.

[Trender22]

Originally Posted by Renate

Start your device normally, connect with (rooted) ADB, issue a "stop" command, pull the file, edit, replace, issue a "start" command.

Thanks! will try that shortly.
Meanwhile here is the list of processes that actually work with that config file (obtained by running lsof in adb shell after su):

COMMAND     PID       USER   FD      TYPE             DEVICE  SIZE/OFF       NODE NAME
system_server  1548     system  mem       REG                8,9    524288         13 /onyxconfig/mmkv/onyx_config
system_server  1548     system  200u      REG                8,9    524288         13 /onyxconfig/mmkv/onyx_config
ndroid.systemui  1853     u0_a89  mem       REG                8,9    524288         13 /onyxconfig/mmkv/onyx_config
ndroid.systemui  1853     u0_a89  127u      REG                8,9    524288         13 /onyxconfig/mmkv/onyx_config
com.onyx   3139     system  mem       REG                8,9    524288         13 /onyxconfig/mmkv/onyx_config
com.onyx   3139     system  319u      REG                8,9    524288         13 /onyxconfig/mmkv/onyx_config

[Renate]

Originally Posted by Trender22

Meanwhile here is the list of processes that actually work with that config file...

Oh, I hadn't noticed that we were talking about an mmkv file. My Go6 only has /onyxconfig/eac_config which is a (bloated) JSON file.