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Trimming apitrace workload captures for better Mesa testing

February 01, 2021 by Gert Wollny  |   Blog

Complex, real-world correctness tests and performance analysis are now possible thanks to gltrim, a new tool recently added to apitrace, designed to trim replayable traces to single, user-defined frames.

Trimming apitrace workload captures for better Mesa testing

GStreamer on Windows: adding WebRTC support to a gst-build install

January 28, 2021 by Aaron Boxer  |   Blog

Earlier this week, WebRTC became an official W3C and IETF standard. GStreamer has a powerful and rapidly maturing WebRTC implementation. So, the obvious question is: how do we build this on Windows?

GStreamer on Windows: adding WebRTC support to a gst-build install

Implementing a performance boosting algorithm in Coccinelle

January 21, 2021 by Jaskaran Singh  |   Blog

Last year, from June to September, I worked on the kernel development tool Coccinelle under Collabora. I implemented a performance boosting algorithm for one of Coccinelle's use cases. Here's a look at this work.

Implementing a performance boosting algorithm in Coccinelle

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

Desktop OpenGL 3.1 on Mali GPUs with Panfrost

January 13, 2021 by Alyssa Rosenzweig  |   Blog

The open source Panfrost driver for Arm Mali Midgard and Bifrost GPUs now provides non-conformant OpenGL ES 3.0 on Bifrost and desktop OpenGL 3.1 on Midgard (Mali T760 and newer) and Bifrost, in time for Mesa's first release of 2021.

Desktop OpenGL 3.1 on Mali GPUs with Panfrost

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!

Empathy first: Driving growth through people leadership

November 30, 2020 by Eleni Katsoula  |   Blog

This year, the global pandemic has put a strain on us all. Motivation can become hard to maintain, worries can cloud our minds. Now more than ever, it is important to try and connect with our colleagues.

Empathy first: Driving growth through people leadership

Developing Wayland Color Management and High Dynamic Range

November 19, 2020 by Pekka Paalanen  |   Blog

Wayland is still lacking proper consideration for color management & support for high dynamic range (HDR) imagery. However, a group of developers has begun an effort to fix this situation. This is their story.

Developing Wayland Color Management and High Dynamic Range

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

A summer sprint: bringing near-native performance to Zink

November 06, 2020 by Mike Blumenkrantz  |   Blog

This week marks two years since the OpenGL implementation on Vulkan was initially announced. Since then, and especially over the past few months, much has progressed with many new features being added and performance now close to native (95%!).

A summer sprint: bringing near-native performance to Zink

From Panfrost to production, a tale of Open Source graphics

November 03, 2020 by Alyssa Rosenzweig  |   Blog

Since our previous update on Panfrost, the open source stack for Arm's Mali Midgard and Bifrost GPUs, we've focused on taking our driver from its reverse-engineered origins on Midgard to a mature stack.

From Panfrost to production, a tale of Open Source graphics

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

Reducing the size of a Rust GStreamer plugin

April 28, 2020 by Guillaume Desmottes  |   Blog

With Rust gaining traction among the GStreamer community as an alternative to C to write applications and plugins, we began wondering, could the size of such Rust plugins be a problem for embedded systems?

Reducing the size of a Rust GStreamer plugin

Monado OpenXR runtime development gaining momentum: version 0.2, multi-layer support & more!

May 29, 2020 by Jakob Bornecrantz  |   News & Events

With the excellent (online) edition of Augmented World Expo 2020 in full swing this week, what better time to announce version 0.2 of the Monado OpenXR runtime for Linux. It's been a very busy three months since the last Monado developer update!

Monado OpenXR runtime development gaining momentum: version 0.2, multi-layer support & more!

Laval Virtual: OpenXR master class in VR!

May 18, 2020 by Mark Filion  |   News & Events

A few weeks ago, Ryan Pavlik presented "Unifying Reality: Building Experiences with OpenXR", a master class on OpenXR, the open standard API for building VR and AR experiences that work across devices, now and into the future.

Laval Virtual: OpenXR master class in VR!

xrdesktop 0.14 with OpenXR support is here!

May 08, 2020 by Lubosz Sarnecki  |   News & Events

Sponsored by Valve, this latest release of the Open Source project which enables interaction with traditional desktop environments, such as GNOME and KDE, in VR, brings the largest amount of changes yet, with many new features and architectural improvements.

xrdesktop 0.14 with OpenXR support is here!

Service process and out of process compositing in Monado

April 30, 2020 by Lubosz Sarnecki  |   News & Events

A new monado-service binary and out of process compositor has landed in Monado, the fully Open Source OpenXR runtime for Linux! Here's a demo of the compositor's new abilities running with the new Blender OpenXR VR Session.

Service process and out of process compositing in Monado

Say hello to the newest Collaborans!

April 21, 2020 by Erica Ryoo  |   News & Events

In these times of disruption and uncertainty, how about some positive news for a change? Let's take a moment to celebrate the newest members of our engineering and administration teams: Mylène, Christopher, Melissa, Ricardo and Leandro!

Say hello to the newest Collaborans!

Projects and progress in Linux kernel 5.6

March 31, 2020 by Helen Koike  |   News & Events

Despite the challenges presented by COVID-19, Linux kernel development continues. Here's a look at the various projects Collaborans have been involved in, and the progress made in kernel 5.6, which was released over the weekend.

Projects and progress in Linux kernel 5.6

Linaro Tech Days: Wayland, Weston & Open Source GPU drivers

March 30, 2020 by Mark Filion  |   News & Events

This week, Daniel Stone and Tomeu Vizoso will be taking part in Linaro Tech Days, a series of technical sessions presented live online via Zoom webinar and streamed on YouTube. These sessions are free to attend and open to the public!

Linaro Tech Days: Wayland, Weston & Open Source GPU drivers

Introducing OpenCL and OpenGL on DirectX

March 24, 2020 by Erik Faye-Lund  |   News & Events

Today, Collabora is excited to announce a partnership with Microsoft to build OpenCL and OpenGL mapping layers on DirectX, in order to bring OpenCL 1.2 and OpenGL 3.3 support to all Windows and DirectX 12 enabled devices.

Introducing OpenCL and OpenGL on DirectX

Monado OpenXR runtime developer update

February 25, 2020 by Jakob Bornecrantz  |   News & Events

Ever since announcing the project at GDC 2019, we have been working on improving the full open source XR stack to a usable state. Today, we are very happy to tag version 0.1 of the Monado OpenXR runtime for Linux!

Monado OpenXR runtime developer update

Low latency streaming of security video feeds with SRT and GStreamer

February 12, 2020 by Jakub Adam  |   News & Events

With the advent of 5G networks, it's now possible to stream high quality video in real-time with a very low latency that wasn't possible with the past generations of mobile networks.

Low latency streaming of security video feeds with SRT and GStreamer

Linux Kernel 5.5

January 30, 2020 by Sebastian Reichel  |   News & Events

With the 5.5 kernel released earlier this week, here's a detailed look at Collabora’s contributions, including work to improve upstream support of peripherals used together with the i.MX 6 family of processors.

Linux Kernel 5.5

FOSDEM 2020

January 23, 2020 by Mark Filion  |   News & Events

In less than 10 days, Collabora will be in Brussels to take part in this year's edition of FOSDEM! Come say hello, or catch one of the dozen talks (in the main track and 6 different devrooms) given by Collaborans!

FOSDEM 2020

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Upcoming Events

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

AGL All Member Meeting

17-18 March, Online

LibrePlanet 2021

20-21 March, Online

Linaro Connect Virtual

23-25 March, Online

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