This is just speculation, but my biggest guess open-source moves fast, and you have two choices: keep up with upstream, release your code and let the mesa commu

This is just speculation, but my biggest guess open-source moves fast, and you have two choices: keep up with upstream, release your code and let the mesa community maintain it, or maintain a years-old fork internally. Building your own might sound like a great idea when you first start out: you can fix any bugs you want without having to trudge through the giant amount of open-source code and keep up with all the architecture changes since. Also, sometimes companies make dumb decisions. The fact that Mali and Qualcomm share some code smells to me like they've licensed a GL implementation from a third-party, which could be a reason why we aren't seeing any bug fixes: they don't have the source code to their own GL implementation.