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Games, Tests and GitLab CI

We are getting midterm of the GNOME 3.30 development cycle and many things already happened in the Games world. I will spare the user facing news for later as today I want to tell you about development features we desperatly needed as maintainers: tests and continuous integration.TL;DR: GLib, Meson, Flatpak and GitLab CI make writing and running tests super easy! 😁 This will allow Games to be more stable and to have more features.The More the BuggierNot only does Games and retro-gtk are slowly becoming bigger and more complex, but to handle many platforms Games has to come flatpaked with Libretro cores. Games and retro-gtk are currently only tested manually and as far as I know, this is also true for the vast majority of the Libretro cores we distribute. That's quite a large number of untested lines of code, it is already impossible to test all of them manually and the test matrix is not going smaller. We are not immune to introducing new bugs or to accidentally reintroducing bug…
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Fracturing Fractal

Last week my employer Purism allowed me to attend the Fractal hackfest in Strasbourg. There we chatted about the future of Fractal and of the messaging applications Purism needs for the Librem 5.Fractal will have two split: a "vertical" split, separating the frontend of Fractal from its backend so we can have a shared Matrix backend;a "horizontal" split, separating Fractal into two applications communicating with the Matrix backend:one focusing on public rooms where you chat with strangers and most messages are noise for you (this application will be very similar to current Fractal),the other focusing on private conversations with few persons where you want to read everything and which will also support SMS.Also, hackfests are hard. 🍺😶
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Adaptive GNOME Web

I started working on making GNOME Web work well on the Librem 5; to be sure it fits a phone's screen I want the windows to fit in a 360 points width, which is definitely small. To do so I started with the advices from Tobias Bernard to make Web have two modes that I named normal and narrow. The normal mode is Web as you know it, while the narrow mode moves all buttons from the header bar but the hamburger menu to a new action bar at the bottom, letting the windows reach yet unreachable widths. Web autmatically adapting to small sizes. And now, with device rotation on a tablet. The code is overall ready, I still need to break it into reviewable bits before submitting it upstream.Once this get merged:we want to not show tabs in narrow mode and instead to display a popover listing the available pages,we want to make the search bar shrink rather than to limit the minimum window size,we consider migrating away from the application menu model.A quick layout test of the pages popover. P.S.…
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One Widget to Adapt Them All and to The Librem 5 Port Them

In my previous article I shared my plans to help porting existing GTK+ applications to Purism's upcoming Librem 5 phone without having to fork them. This article will present the GTK+ widget I developed for Purism to make this happen.For more information on what Purism is working on for the Librem 5, please check Nicole Faerber's latest article.C'est pas sorcierThe underlying idea is to allow applications to dynamically switch between the two main GNOME application layouts: a row of panels — each panel being the view of an element from the previous one — and a stack of panels. The goal isn't to changes applications using the stack paradigm but the ones using the row one, allowing them to reach smaller sizes and to be usable on constrained sizes while keeping their initial paradigm and design when the screen space is sufficient. The development cost to port the applications to this adaptive design should be as low as possible.To achieve that, I wrote a GTK+ widget which…
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GTK+ Apps on Phones

As some of you may already know, I recently joined Purism to help developing GTK+ apps for the upcoming Librem 5 phone.Purism and GNOME share a lot of ideas and values, so the GNOME HIG and GNOME apps are what we will focus on primarily: we will do all we can to not fork nor to reinvent the wheel but to help allowing existing GTK+ applications to work on phones.How Fit are Existing GTK+ Apps?Phones are very different from laptops and even tablets: their screen is very small and their main input method is a single thumb on a touchscreen. Luckily, many GNOME applications are touch-friendly and are fit for small screens. Many applications present you a tree of information you can browse and I see two main layouts used by for GNOME applications to let you navigate it.A first kind of layout is found in applications like Documents, I'll call it stack UI: it uses all the available space to display the collection of information sources (in that case, documents), clicking an element from t…
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CRT Filter in Games — SUSE Hack Week

SUSE Hack Week 0x10 finished on previous Friday, during it I wanted to support hardware rendering in retro-gtk.This project had two sides, the first one was to allow the Libretro cores to draw their video with OpenGL, the second one was to render their video using OpenGL to allow filtering it via shaders. It was unrealistic to do both sides of this project in one week and, being at the time a complete beginner when it comes to OpenGL, I didn't plan to succeed any of these projects but just to learn a lot.The week before the Hack Week, I took some time to study GtkGLArea and to implement a skeleton for the RetroGLDisplay widget, which was similar to RetroCairoDisplay but was drawing nothing. The GTK+ part of the project being ready, I was able to focus on the OpenGL part during the Hack Week.FridayThe first day I looked for OpenGL tutorials and I managed to implement an "Hello, triangle" tutorial. I played a bit more with it and got the triangle blinking and then I turned…
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retro-gtk: The Future, Marty!

Let's come back to retro-gtk. In the previous articles I explained how bad retro-gtk was, what I did to start improving it and more importantly what I did to prepare the terrain for further development. This article will detail the aforementioned planed improvements! Unless stated otherwise, I don't plan these changes to be part of retro-gtk 0.14 and I have no idea when they will be implemented. If I say anything you know to be wrong or if you know something which could help the library's development, please share it in the comments!Stabilization of the APIAs stated in the previous article, I want retro-gtk's API to stop breaking as much as it did in the past. Starting with 0.14, we will avoid API and ABI breaks as much as possible, and if we do any we will document them properly. The API should be stable but given that some big changes are coming I don't feel comfortable promising proper stability just yet.GitlabI requested to move retro-gtk to GNOME's GitLab. …
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