EGL | EGL 1.5 implementation | Graphics library

I wrote a bunch of visualization functions in my python3 library using Mayavi. I am not very familiar with this library, nor am I with testing visualizations using python.

Ideally, I would just like the visualization code to generate some graphics on disk, I don't care too much about popping up windows (although I'm not sure to understand if Mayavi can work properly without popping such windows).

Anyway, my code works on local, but when I push it on develop, CircleCI fails at running the tests with the following error:

I'm trying to start android emulator on apple silicon mac and I'm always getting the same results:

1. Running emulator directly through Android Studio (the latest stable version, Arctic Fox 2020.3.1 Patch 4) causes a problem, when the process qemu-system-arch64 stucks and uses 99% CPU (there is no emulator's screen or something like than). Such behavior produces some logs:

internal-error-msg.txt says:

Update: The problem does not occur with the NVIDIA driver version 510 anymore.

I am running Android Studio 2020.3.1 on Wayland and I'm using the proprietary NVIDIA driver version 495, which allows me to use the the regular GBM implementation of Wayland instead of the especially tailored EGL version.

My problem is, that every time I try to start an Android emulator (AVD) via the AVD Manager, I get the following message after a few seconds:

The emulator process for AVD Pixel_2_API_30 has terminated.

Starting the AVD from the command-line shows that a segmentation fault occurred:

I cannot start the android emulator V30.9.4

I got this error message:

I'm debugging a segfault-on-exit that I suspect comes to a recent change to our OpenGL-via-EGL off-screen rendering setup. Everything running on ubuntu with integrated intel graphics. The segfault only appears when OpenCV's highgui is included and used. This is probably only the canary in the coalmine so to speak, and the issue seems to stem from object lifetimes.

We have an EGLContext class that manages all things EGL. That means choosing a /dev/dri/xyz file handle for which device to use, and then getting a display handle. We use the extensions EGL_EXT_platform_base, EGL_EXT_platform_device, EGL_EXT_device_base, EGL_EXT_device_query and EGL_EXT_device_enumeration.

This EGLContext used to work fine, however since a recent optimization, it is owned by a static object, and thus destructed much later than before. In the destructor we call eglDestroyContext() and eglTerminate(), which both give back an EGL_BAD_DISPLAY error. Is there an inherent lifetime to these handles, that is shorter than that of static objects? Nowhere in our code do we destroy the display connection before this moment.

While debugging the above issue, I noticed that we get different display handles on each call to eglGetPlatformDisplayEXT(EGL_PLATFORM_DEVICE_EXT, devicedrm, display_attr). The extension docs state that

Multiple calls made to eglGetPlatformDisplayEXT with the same and will return the same EGLDisplay handle.

Anyone knows what could be the cause of this? Am I missing something?

I'm working on a Xamarin.Forms application, which runs fine on all Android versions up to and including 11.

However, I was asked to target Android 12 with the app. So I updated all NuGet packages to the latest, installed JDK11, set it in Projects > Android > Locations. I changed the "compile with" SDK to Android 12.0 (S) and "Target Android Version" to Android 12.0 in the Android project settings.

The application compiles fine, and runs properly on Android 11 emulator. But once I deploy to Android 12 emulator, Visual Studio shows "Failed to attach the debugger" error, and application crashes immediately after native splash. Logcat has this to show:

I'm working on a raspberry pi project that involves running a node server in kiosk mode.

I'm using BROWSER=none to suppress the default opening of the localhost upon the server being run.

I'm thinking I should be able to use wait-on to force the bash script that runs the kiosk mode to wait until the server is fully up. Would I use something like this?

I don't really know, how to feed my Wear OS tiles with data. Currently, I am experimenting with receiving my heart rate from a BroadcastReceiver, which works but my value is always 0 inside onTileRequest.

This is my TileService...

Not gonna lie, I'm very new in kotlin, that why I need analysis of full code.

On start it asks for permissions (don't need any more it's just test project) Pressing on the button supposed to change textView to my location

This is the code: