Embedded

Tuukka Turunen

Handwriting Recognition with Qt Virtual Keyboard 2.0

Published Monday October 5th, 2015
Comments Off on Handwriting Recognition with Qt Virtual Keyboard 2.0
Posted in Biz Circuit & Dev Loop, Embedded, Releases

The Qt Virtual Keyboard has been available for a bit over one year and nicely adopted in various devices built with Qt. With the upcoming version 2.0 it will allow gesture based text input as well as typing. In addition to handwriting recognition (HWR) functionality the upcoming Qt Virtual Keyboard 2.0 is bringing performance optimizations, support for Traditional Chinese language, and

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Laszlo Agocs

Using modern OpenGL ES features with QOpenGLFramebufferObject in Qt 5.6

Published Monday September 21st, 2015
Comments Off on Using modern OpenGL ES features with QOpenGLFramebufferObject in Qt 5.6
Posted in Embedded, Graphics, Mobile, OpenGL

QOpenGLFramebufferObject is a handy OpenGL helper class in Qt 5. It conveniently hides the differences between OpenGL and OpenGL ES, enables easy usage of packed depth-stencil attachments, multisample renderbuffers, and some more exotic formats like RGB10. As a follow up to our previous post about OpenGL ES 3 enhancements in Qt 5.6, we are now

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Laszlo Agocs

Cross-platform OpenGL ES 3 apps with Qt 5.6

Published Wednesday September 9th, 2015
7 Comments on Cross-platform OpenGL ES 3 apps with Qt 5.6
Posted in Embedded, Graphics, Mobile, OpenGL

Now that the alpha release for Qt 5.6 is here, it is time to take a look at some of the new features. With the increasing availability of GPUs and drivers capable of OpenGL ES 3.0 and 3.1 in the mobile and embedded world, targeting the new features these APIs provide has become more appealing

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Laszlo Agocs

Qt 5.5, computer vision, and the Nitrogen6X

Published Thursday June 4th, 2015
3 Comments on Qt 5.5, computer vision, and the Nitrogen6X
Posted in Embedded, Graphics, Multimedia, Qt Quick 2

In a previous post we have introduced one of the many new features of the upcoming Qt 5.5: the ability to easily integrate image processing and vision algorithms with camera and video streams via Qt Multimedia. It is now time to see the briefly mentioned OpenCV-based example in more detail. Nitrogen6X is a single board

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Tuukka Turunen

Qt Virtual Keyboard 1.3 Released – Adding Japanese and Korean Language Support

Published Tuesday June 2nd, 2015
7 Comments on Qt Virtual Keyboard 1.3 Released – Adding Japanese and Korean Language Support
Posted in Embedded, Releases, Windows

Today, we have released a new version 1.3 of the Qt Virtual Keyboard. As new features, we are adding support for Japanese and Korean along with support for Windows desktop. A big use case over the years for Qt has been in creating embedded devices with an interactive use interface. More and more embedded and industrial

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Laszlo Agocs

Integrating custom OpenGL rendering with Qt Quick via QQuickFramebufferObject

Published Monday May 11th, 2015
7 Comments on Integrating custom OpenGL rendering with Qt Quick via QQuickFramebufferObject
Posted in C++, Embedded, Graphics, OpenGL, Qt Quick

Integrating custom OpenGL rendering code, for example to show 3D models, with Qt Quick is a popular topic with Qt users. With the release of Qt 5.0 the standard approach was to use the beforeRendering and afterRendering signals to issue the custom OpenGL commands before or after the rendering of the rest of the scene,

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Laszlo Agocs

Qt Quick with the power of OpenCL on Embedded Linux devices

Published Monday April 20th, 2015
9 Comments on Qt Quick with the power of OpenCL on Embedded Linux devices
Posted in C++, Embedded, Graphics, Multimedia, OpenGL, Qt Quick

Many Qt users encounter a need to integrate GPU compute solutions into their Qt-based applications. What is more, with the advent of compute API implementations and powerful GPUs on embedded devices, using OpenCL or CUDA on an Embedded Linux device is a reality now. In a previous post we looked at NVIDIA’s Jetson TK1 board

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Laszlo Agocs

Qt Weekly #28: Qt and CUDA on the Jetson TK1

Published Tuesday March 3rd, 2015
7 Comments on Qt Weekly #28: Qt and CUDA on the Jetson TK1
Posted in Compilers, Embedded, Graphics, OpenGL, QPA

NVIDIA’s Jetson TK1 is a powerful development board based on the Tegra K1 chip. It comes with a GPU capable of OpenGL 4.4, OpenGL ES 3.1 and CUDA 6.5. From Qt’s perspective this is a somewhat unorthodox embedded device because its customized Linux system is based on Ubuntu 14.04 and runs the regular X11 environment.

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Katherine Barrios

Qt @ Embedded World 2015

Published Friday February 27th, 2015
2 Comments on Qt @ Embedded World 2015
Posted in Biz Circuit, Embedded, Embedded World, Events

Yesterday, we ended a great 3 days at Embedded World 2015 (Feb 24-26)  in Nuremberg, Germany. Considered the largest embedded development trade show, the event organizers estimated 30,000 exhibition visitors, over 1,500 congress participants and around 900 exhibitors from over 35 countries. Personally, this is my 7th Embedded World with Qt and I have to

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