Mediatek Helio X20 vs Qualcomm Snapdragon 625 – 3D Graphics Benchmarks and CSR2 Game

I’ve been using Vernee Apollo Lite smartphone with a Mediatek Helio X20 deca-core ARM Cortex A72/A53 processor coupled with an ARM for a little over a year. Recently, I’ve received Xiaomi Mi A1 smartphone for a Qualcomm Snapdragon 625 SoC featuring eight ARM Cortex A53 cores and an Adreno 506 GPU. In theory, the latter is a downgrade, and the Xiaomi phone is indeed quite slower in Antutu with overall score of 60,161 points against 85,840 points in the Mediatek phone. 3D graphics performance is also lower with 12,849 vs 17,828 points. Both smartphone have the same resolution (1920×1080), so it’s a little confusing to be told you’d “better to play games in low quality mode” for the Mediatek phone, and “game performance is mid-level” for the Snapdragon one. But anyway Helio 20 should work better in 3D games than Snapdragon 625 if we are to believe the numbers. Most apps run fine on Vernee Apollo Lite, but one game …

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Qt/QML vs HTML5/AngularJS User Interfaces Showdown (Video)

We now live in a world where there’s a push for higher level programming languages either based on web technologies like HTML5 or JavaScript, or other interpreted languages such as Python, and lower level languages such as C, C++, or – maybe more understandably – Assembler are often avoided by newcomers. But there are advantages of using native code, as demonstrated by Sequality, a software engineering company, who asked a developer familiar with HTML and C++ to develop a demo of an embedded systems using HTML5 + AngularJS and Qt/QML. The developer had 160 hours to develop the user interface for each framework, and with the resulting demos running on a Raspberry Pi 3 board with Raspbian, it was found that the Qt/QML implementation delivered a more responsive and functional user interface compared to the HTML5 version which tended to lag, and lacked support for touchscreen and a software keyboard by default. The developer also reported that the testing and …

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Imagination Announces PowerVR Series2NX Neural Network Accelerator (NNA), and PowerVR Series9XE and 9XM GPUs

Imagination Technologies has just made two announcements: one for their PowerVR Series2NX neural network accelerator, and the other for the new high-end GPU families: PowerVR Series9XE and 9XM. PowerVR Series2NX neural network accelerator The companies claims 2NX can deliver twice the performance and half the bandwidth of nearest competitor, and it’s the first dedicated hardware solution with flexible bit-depth support from 16-bit down to 4-bit. Key benefits of their solution (based on market data available in August 2017 from a variety of sources) include: Highest inference/mW IP cores to deliver the lowest power consumption Highest inference/mm2 IP cores to enable the most cost-effective solutions Lowest bandwidth solution with support for fully flexible bit depth for weights and data including low bandwidth modes down to 4-bit 2048 MACs/cycle in a single core, with the ability to go to higher levels with multi core The PowerVR 2NX NNA is expected to be found in smartphone and other mobile devices leveraging Tensorflow Lite …

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How to Remove Watermarks & Timestamps from Photos with GIMP

Watermarks can be seen on some photographs for copyright reasons, but in some cases even people or companies who clearly don’t own copyrights add watermarks, such as online resellers who add watermarks on top of photos provided by manufacturers, and some camera adds date & time automatically to photos if you’ve used the  settings to enable it. I’ve recently read a blog post on Google Research about making watermarks more effective, as some computer algorithm could remove watermarks automatically. Since I often waste time while searching for watermark-free version of the photo, I decided to check if I could find such program running in Linux. I did not but I found a somewhat old blog post explaining how to use GIMP to perform the task with three different methods: Crop, if the watermark is on the edges… Easiest method, but for most case this won’t do… Content-aware filling using resynthetiser plugin. Automatic and easy, but results will depend on source …

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Linux 4.13 Release – Main Changes, ARM & MIPS Architectures

Linus Torvalds has just announced the release of Linux 4.13 and a kidney stone…: So last week was actually somewhat eventful, but not enough to push me to delay 4.13. Most of the changes since rc7 are actually networking fixes, the bulk of them to various drivers. With apologies to the authors of said patches, they don’t look all that interesting (which is definitely exactly what you want just before a release). Details in the appended shortlog. Note that the shortlog below is obviously only since rc7 – the _full_4.13 log is much too big to post and nobody sane would read it. So if you’re interested in all the rest of it, get the git tree and limit the logs to the files you are interested in if you crave details. No, the excitement was largely in the mmu notification layer, where we had a fairly last-minute regression and some discussion about the problem. Lots of kudos to Jérôme …

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Embedded Linux Conference & OpenIoT Summit 2017 Schedule

The Embedded Linux Conference 2017 and the OpenIoT Summit 2017 will take place earlier than last year, on February  20 – 23, 2017 in Portland, Oregon, USA. This will be the 12th year for ELC, where kernel & system developers, userspace developers, and product vendors meet and collaborate. The schedule has been posted on the Linux Foundation website, and whether you’re going to attend or not, it’s always informative to check out the topics. So as usual, I’ll make a virtual schedule for all 5 days. Monday, February 20 For the first day, the selection is easy, as choices are limited, and the official first day it actually on Tuesday. You can either attend a full-day paid training sessions entitled “Building A Low Powered Smart Appliance Workshop“, and the only session that day: 14:30 – 15:20 – Over-the-air (OTA) Software Updates without Downtime or Service Disruption, by Alfred Bratterud, IncludeOS Millions of consumers are at risk from security vulnerabilities caused …

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NovaVGA Shield Adds VGA Output to Arduino Boards

Arduino boards are convenient to control I/Os, link LEDs, and display info on small LCD displays, but if you want to output data to a larger monitor, it’s a bit more complex. NovaVGA shield for Arduino simplify the task of outputting data to a VGA monitor over SPI. NovaVGA shield hardware specifications: CPLD – Xilinx XC9572XL CPLD, user programmable via JTAG interface. SRAM Framebuffer – 160×120 pixels @ 6-bit color (2^6 = 64 possible colors) VGA Output – 640×480 @ 60Hz physical resolution (25.175MHz pixel clock) Interface with MCU – SPI mode 1 interface (consumes only three Arduino pins) Header pins not included MicroNova provides an Arduino library with various examples such as color palette, Mandelbrot, Tetris and text console, as well as a user’s guide and PDF schematics that can all be downloaded directly on the product page. NovaVGA shield sells for $29 on Tindie or directly on MicroNova store. Note that it’s not the first board of this …

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Self-hosted OpenGL ES Development on Ubuntu Touch

Blu wrote BQ Aquaris M10 Ubuntu Edition review – from a developer’s perspective – last year, and now is back with a new post explaining how to develop and deploy OpenGL ES applications directly on the Ubuntu Touch tablet. Ever since I started using a BQ M10 for console apps development on the go I’ve been wanting to get something, well, flashier going on that tablet. Since I’m a graphics developer by trade and by heart, GLES was the next step on the Ubuntu Touch for me. This article is about writing, building and deploying GLES code on Ubuntu Touch itself, sans a desktop PC. Keep that in mind if some procedure seems unrefined or straight primitive to you – for one, I’m a primitive person, but some tools available on the desktop are, in my opinion, impractical on the Touch itself. That means no QtCreator today, nor Qt, for that matter. The display of any contemporary Ubuntu Touch device …

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