Hi all, Over the past year we've increased our dependencies on Moz2D (formerly known under the codename Azure), our new 2D rendering API. Currently we're using it for canvas drawing on all platforms and content drawing on Windows where using Direct2D, and in the near future we will be moving to using it for content on all platforms.
>From the very beginning of Moz2D development we've taken care to make sure it >can be built outside of the rest of Gecko, having only dependencies on several >MFBT headers. This was done to reduce the barrier for external usage and >development, we've since seen this benefit us for example in Servo using Moz2D >as well. In addition to that it has helped development and bugfixing by having >a much faster workflow for building/testing with which bugs could be located >and fixes created. Going forward we're expanding on that by ensuring the stand-alone builds and works on all platforms and becomes the defacto way of the 'first level' of testing when implementing new features or fixing bugs in Moz2D. In addition to that we're expanding on our existing stand-alone unittesting suite as well as adding a peformance testing suite, which will include microbenchmarking and support measuring performance on Moz2D drawing recordings (single-page recording support has just landed on mozilla-inbound). When moving forward we have several goals for Moz2D when it comes to the workflow: - Improve Moz2D development workflow by having faster turnaround time on builds and tests (both local and Try) - Lower the barrier for external contributors, some people have already expressed the desire to work on potential backends we do not wish to invest in ourselves, but have been deterred by the complexity of the checkout/building process. - Improve sharing between Servo/Gecko. - Reduce load on our infrastructure by building and testing only Moz2D stand-alone when a change affects only Moz2D, both on regular builds and try. As the next step in moving towards these goals and optimally supporting them the proposal is to move Moz2D into its own repository. We would use hg subrepos for this purpose, you can read more about this here (http://mercurial.selenic.com/wiki/Subrepository). The intention is that this will be done in such a way that the workflow for developers not involved in Moz2D development would essentially not change. A more detailed description of the proposal and the workflows involved can be found here (https://wiki.mozilla.org/Platform/GFX/Moz2DSubrepository) for those interested in the details. Since we believe if we go through with this it would be the first time we use a true subrepository system for a component used in mozilla-central, we'd very much appreciate any thoughts or feedback people might have on the idea. Best regards, Bas _______________________________________________ dev-platform mailing list dev-platform@lists.mozilla.org https://lists.mozilla.org/listinfo/dev-platform
