Tag: Java

JogAmp’s JOGL FFmpeg Binding Update

Sven

As already demonstrated in the previous Graph UI blog, the FFmpeg binding has been properly update, now supporting version 4, 5 and the development trunk 6. Version 4 is currently used in Debian 11 and version 5 in Debian 12. Each implemented version uses the current non-deprecated FFmpeg code-path. Continue reading “JogAmp’s JOGL FFmpeg Binding Update” →

Reimagine Java on Desktop & Bare-Metal Devices

Sven2 Comments

The vision and reimagination is to unite forces and bring back Java UI on bare-metal embedded devices, mobile and desktop. In the lasts months and years, I have sadly seen companies revoking their commitment and trust in Java in regards to Human Machine Interface (HMI) or User Interface (UI) applications. Continue reading “Reimagine Java on Desktop & Bare-Metal Devices” →

Graph Type Rendering Update 3

Sven

Just another little update, the 3rd, see first update and the second one for progress.
Basically one bug within the TypecastRenderer has been fixed, transforming the Glyph into our OutlineShape. Furthermore it may produce Java code to be pasted in a test class to test remaining issues. Continue reading “Graph Type Rendering Update 3” →

Graph Type Rendering Update 1

Sven

After releasing JogAmp 2.4.0 (see feature/buglist), it was time to tackle an outstanding issue once again: Type Rendering. Motivation was born again by finding the most interesting feature to use Java with JOGL on Desktop, Mobile and Embedded Devices. At least for my taste, I identified this to be Graph UI,  an immersive UI within the 3D scene including text and UI objects and user interaction. Continue reading “Graph Type Rendering Update 1” →

Some late C++/Java Project Experience

Sven

Lately we started to discuss JogAmp‘s Project Management a little bit and touched things like efficient Java JNI binding to native foreign functions.

Allow me to elaborate on this issue a little bit (forum copy),  perhaps even go this far to debate down on the metal C++ vs virtual Java performance.

Keep in mind, I am an old dog and always focus on performance and such thing even on the Java side 😉 Continue reading “Some late C++/Java Project Experience” →

Direct-BT C++ Implementation Details (Part 1)

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This is the first article covering Direct-BT‘s implementation details including jaulib.

See Direct-BT, Bluetooth Server and Client Programming in C++ and Java (Part 1) for a little introduction to Direct-BT.

Standard and Proprietary Communication Channels

As described, we were required to utilize the host Bluetooth implementation in the GNU/Linux kernel, i.e. BlueZ/Kernel directly without D-Bus to achieve best performance and access the native HCI, L2CAP/GATT and SMP communication channels directly. Continue reading “Direct-BT C++ Implementation Details (Part 1)” →

Direct-BT, Bluetooth Server and Client Programming in C++ and Java (Part 1)

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This is the first article covering Direct-BT  using version 2.7.1 and may give you a little introduction into this project.

See Direct-BT C++ Implementation Details (Part 1) for some insight view.

Overview

Direct-BT provides direct Bluetooth LE and BREDR programming, offering robust high-performance support for embedded & desktop with zero overhead via C++ and Java.

It supports a fully event driven workflow from adapter management, device discovery to GATT programming, using its platform agnostic HCI, L2CAP, SMP and GATT protocol implementation.

Multiple Bluetooth adapter are handled, as well as multiple concurrent connections per adapter.

Peripheral server device programming is supported as well as the central client, which is also used for Java and C++ self unit testing across two or more Bluetooth adapter. Continue reading “Direct-BT, Bluetooth Server and Client Programming in C++ and Java (Part 1)” →