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A tale of cylinders and shadows

November 22, 2016 by Gustavo Noronha  |   Blog

Our ongoing work on improving WebKitGTK+ performance brought us to take a closer look as to why GTK+ was experiencing significant speed issues when used with Wayland and HiDPI screens, revealing the root cause to be within the lower level toolkit.

A tale of cylinders and shadows

How continuous integration can help you keep pace with the Linux kernel

November 08, 2016 by Tomeu Vizoso  |   Blog

Almost all of Collabora's customers use the Linux kernel on their products. Often they will use the exact code as delivered by the SBC vendors and we'll work with them in other parts of their software stack. But it's becoming increasingly common for our…

How continuous integration can help you keep pace with the Linux kernel

Collabora contributions to GStreamer 1.10 - Part 2

November 03, 2016 by Olivier Crête  |   Blog

In the first part of my review of Collabora's participation in GStreamer 1.10, I discussed the work done by Guillaume & Nicolas around leak tracing, acoustic echo cancellation, Wayland, V4L, etc. Today, I'll go over the contributions from the rest of…

Collabora contributions to GStreamer 1.10 - Part 2

Collabora contributions to GStreamer 1.10

November 02, 2016 by Olivier Crête  |   Blog

Yesterday, we celebrated the release of GStreamer 1.10, the culmination of 7 months of very hard work from the GStreamer community. Collabora's multimedia team is extremely proud of our contributions to this new major feature release.

Collabora contributions to GStreamer 1.10

Linux Plumbers Conference 2016

October 26, 2016 by Mark Filion  |   News and Events

Collabora is proud to be once again sponsoring the annual Linux Plumbers Conference, the developer conference that brings together the top developers working on the “plumbing” of Linux: kernel subsystems, core libraries, windowing systems, etc.

Linux Plumbers Conference 2016

Open Build Service in Debian - Part 2

October 25, 2016 by Héctor Orón Martínez  |   Blog

In the previous post, I gave an overview of the Open Build Service software architecture. In this second part, a tutorial on setting up a package build with OBS from Debian packages is presented.

Open Build Service in Debian - Part 2

Open Build Service in Debian - Part 1

October 24, 2016 by Héctor Orón Martínez  |   Blog

openSUSE distributions’ build system is based on a generic framework named Open Build Service (OBS), I have been using these tools in my work environment, and I have to say, as Debian developer, that it is a great tool. In this blog post I plan for you…

Open Build Service in Debian - Part 1

Mainline Explicit Fencing - Part 2

October 18, 2016 by Gustavo Padovan  |   Blog

In the first part we covered the main concepts behind Explicit Synchronization for the Linux Kernel. Now in the second part of the series we are going to look to the Android Sync Framework, the first (out-of-tree) Explicit Fencing implementation for the…

Mainline Explicit Fencing - Part 2

Making Viewer UIs for Pitivi

October 13, 2016 by Lubosz Sarnecki  |   Blog

Being someone who has already experimented with two transformation box approaches for Pitivi in the past, maintainers thought I might be the right person to do a modern one. Creating a user interface for a video transformation requires three things: the…

Making Viewer UIs for Pitivi

GStreamer Conference 2016

October 07, 2016 by Mark Filion  |   News and Events

Collabora is proud to be a Platinum Sponsor of this year's GStreamer Conference, taking place at the Betahaus in Berlin, Germany on 10-11 October 2016. Come say hello, or catch one of the four presentations given by Collaborans during the conference!

GStreamer Conference 2016

Web Engines Hackfest 2016

October 06, 2016 by Gustavo Noronha  |   Blog

I had a great time last week and the Web Engines Hackfest! It was the 7th web hackfest hosted by Igalia and the 7th hackfest I attended. I’m almost a local Galician already. Brazilian Portuguese being so close to Galician certainly helps! Collabora co-sponsored…

Web Engines Hackfest 2016

Collabora contributions to Linux Kernel 4.8

October 03, 2016 by Gustavo Padovan  |   Blog

Linux Kernel 4.8 is out and once more Collabora engineers did a significant contribution to the Kernel. For this latest release, Collabora provided 101 patches from 8 engineers, our biggest contribution to date in single kernel release!

Collabora contributions to Linux Kernel 4.8

Understanding computer vision & AI, part 1

August 13, 2020 by Marcus Edel  |   Blog

Following our recent presentation at OSSummit, many showed interest in learning more about solving real-world problems with computer vision. Here is a new blog series, on computer vision, object detection, and building a system on the edge.

Understanding computer vision & AI, part 1

Testing Weston DRM/KMS backends with virtme and VKMS

August 07, 2020 by Leandro Ribeiro  |   Blog

Recent work in Weston, the industry-standard Wayland compositor, has enabled DRM/KMS backends to be tested in the absence of real hardware, enabling more battle testing of corner-case and error conditions within automated testing frameworks.

Testing Weston DRM/KMS backends with virtme and VKMS

An introduction to Linux kernel initcalls

July 14, 2020 by Mylène Josserand  |   Blog

Initcalls, which serve to call functions during boot, were implemented early on in the development of the Linux Kernel. Read on as we take a closer look, including their purpose, their usage, ways to debug them (using initcall_debug or FTrace), and more.

An introduction to Linux kernel initcalls

Deep dive into OpenGL over DirectX layering

July 09, 2020 by Louis-Francis Ratté-Boulianne  |   Blog

Earlier this year, we announced a new project with Microsoft: the implementation of OpenCL & OpenGL to DirectX translation layers. Here's the latest on this work, including the steps taken to improve the performance of the OpenGL-On-D3D12 driver.

Deep dive into OpenGL over DirectX layering

Using syzkaller, part 4: Driver fuzzing

June 26, 2020 by Ricardo Cañuelo Navarro  |   Blog

Syzkaller is much needed tool for Linux kernel testing and debugging. With some work, it can also be enhanced to find bugs in specific drivers, such as V4L2. Here's how.

Using syzkaller, part 4: Driver fuzzing

Cross building Rust GStreamer plugins for the Raspberry Pi

June 23, 2020 by Guillaume Desmottes  |   Blog

Previously, we discussed about how Rust can be a great language for embedded programming. In this article, we'll explain an easy setup to cross build Rust code depending on system libraries, a common requirement when working on embedded systems.

Cross building Rust GStreamer plugins for the Raspberry Pi

Generating MPEG-DASH streams for Open Source adaptive streaming with GStreamer

June 12, 2020 by Stéphane Cerveau  |   Blog

Adaptive streaming is a technique to provide flexibility and scalability by offering variable bit-rate streams to the client. Here's a quick guide on how to generate a MPEG-DASH stream (the most completely adaptive streaming technique) using GStreamer.

Generating MPEG-DASH streams for Open Source adaptive streaming with GStreamer

Bifrost meets GNOME: Onward & upward to zero graphics blobs

June 05, 2020 by Alyssa Rosenzweig  |   Blog

With only free software, a Mali G31 chip can now run Wayland compositors with zero-copy graphics, including GNOME 3. We can run every scene in glmark2-es2, 3D games like Neverball can be played, and video players mpv and Kodi are now supported.

Bifrost meets GNOME: Onward & upward to zero graphics blobs

Using regmaps to make Linux drivers more generic

May 27, 2020 by Adrian Ratiu  |   Blog

Device drivers can support more revisions and SoC platforms by abstracting away specific hardware interface layouts. Let's examine a specific instance of this process, namely the effort to make the MIPI DSI host controller driver more generic.

Using regmaps to make Linux drivers more generic

Cross-compiling with gst-build and GStreamer

May 15, 2020 by Stéphane Cerveau  |   Blog

gst-build is one of the main build systems used by the community to develop the GStreamer platform. In my last blog post, I presented gst-build and explained how to get started with it. Now, let's get straight to the point regarding cross-compilation.

Cross-compiling with gst-build and GStreamer

Using syzkaller, part 3: Fuzzing your changes

May 12, 2020 by Andre Almeida  |   Blog

In part 2 of this series on syzkaller, we looked at how to install the tool and use it to improve our code base. Now, how does syzkaller report a bug it finds in the execution path of a system call? Let's add a new syscall description and see how it goes.

Using syzkaller, part 3: Fuzzing your changes

WirePlumber, the PipeWire session manager

May 07, 2020 by George Kiagiadakis  |   Blog

An in-depth look at WirePlumber, the modular and extensible session manager for PipeWire that brings advanced device management, policy control and security enforcement capabilities.

WirePlumber, the PipeWire session manager

Kernel 5.12: Working to close the gap

May 04, 2021 by Ariel D'Alessandro  |   News & Events

With their latest contributions all around the kernel, notably to the Video4Linux APIs and hardware enablement, Collaborans continue to expand on their efforts to close the gap between hardware support on vendor trees and mainline.

Kernel 5.12: Working to close the gap

PanVk: An Open Source Vulkan driver for Arm Mali Midgard and Bifrost GPUs

March 25, 2021 by Boris Brezillon  |   News & Events

The Panfrost project started as a reverse engineering effort to understand Arm Mali Midgard and Bifrost GPU internals. With the driver getting more and more mature, the natural next step was to work on an Open Source Vulkan driver for those GPUs.

PanVk: An Open Source Vulkan driver for Arm Mali Midgard and Bifrost GPUs

Linaro Virtual Connect - Spring 2021

March 22, 2021 by Mark Filion  |   News & Events

Join us this week at the Spring edition of Linaro Virtual Connect, as we discuss bringing stateless video decoding support to Linux, and take a look at where we are, and what's to come, for open drivers for Arm GPUs.

Linaro Virtual Connect - Spring 2021

OpenGL on DirectX: Conformance & upstreaming of the D3D12 driver

March 10, 2021 by Erik Faye-Lund  |   News & Events

One year ago, we announced a new partnership with Microsoft to build OpenGL mapping layers to DirectX 12. Today, we're excited to share that the we have passed the OpenGL 3.3 conformance tests, and have now upstreamed the D3D12 driver in Mesa 3D!

OpenGL on DirectX: Conformance & upstreaming of the D3D12 driver

Wine on Wayland: An exciting first update

February 19, 2021 by Alexandros Frantzis  |   News & Events

Two months ago we announced a first proposal for a Wayland driver for Wine, the compatibility layer for Windows applications. Here's an update on this effort, which contains more details and instructions for building and running the Wayland driver.

Wine on Wayland: An exciting first update

New year, new kernel: Collabora's contributions to Linux 5.11

February 17, 2021 by Ezequiel Garcia  |   News & Events

The first kernel release of 2021 brings a number of highlights contributed by Collaborans, including the new Syscall User Dispatch mechanism, and the destaging of both the H.264 stateless decoding interface and the Rockchip ISP driver.

New year, new kernel: Collabora's contributions to Linux 5.11

Monado 21.0.0, an officially conformant OpenXR implementation!

February 15, 2021 by Jakob Bornecrantz  |   News & Events

Monado, the OpenXR runtime for Linux, is now officially conformant! In recognition of this milestone, a first major release version of the OpenXR runtime for Linux is now available, bringing with it a SteamVR driver!

Monado 21.0.0, an officially conformant OpenXR implementation!

One weekend, two conferences

January 19, 2021 by Mark Filion  |   News & Events

Join us as our 2021 conference schedule gets underway this weekend with the virtual editions of linux.conf.au and MiniDebConf India! Collaborans will be giving talks on recent projects including futex2, and Open Source AI video analytics with Panfrost.

One weekend, two conferences

A Wayland driver for Wine

December 15, 2020 by Alexandros Frantzis  |   News & Events

After several months of work, we are excited to announce a first proposal for a Wayland driver for Wine. The proposal is in the form of an RFC, in order to explore how to best move forward with the upstreaming and further development of the driver.

A Wayland driver for Wine

Kernel 5.10: Rockchip, H.264, Bifrost & more!

December 14, 2020 by Ricardo Cañuelo Navarro  |   News & Events

Even amidst the chaos and uncertainty that 2020 brought, Linux Kernel development keeps moving forward at a constant and relentless pace. Collabora remains active, developing, maintaining, documenting and testing many parts of the kernel.

Kernel 5.10: Rockchip, H.264, Bifrost & more!

Linux App Summit 2020

November 12, 2020 by Mark Filion  |   News & Events

Starting today, and running until Saturday, join us at Linux App Summit for a look at Linux graphics, PipeWire, our work with Valve, and a virtual office hour with our Engineering Manager!

Linux App Summit 2020

Monado update: Passing conformance, Android support & more

November 02, 2020 by Jakob Bornecrantz  |   News & Events

Monado 0.4 OpenXR runtime introduces initial support for Android and passes all of the OpenXR conformance tests with both OpenGL and Vulkan on desktop with a simulated device.

Monado update: Passing conformance, Android support & more

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Upcoming Events

Here are the online events we'll be attending in the coming weeks – join us!

Linaro Virtual Connect

8-10 September, Online

XDC 2021

15-17 September, Online

Linux Plumbers Conference

20-24 September, Online

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