[Bf-committers] SDL library upgrade

Martijn Berger martijn.berger at gmail.com
Thu Nov 13 14:39:10 CET 2014


In general I do not think we should be to dogmatic in terms of library
versions across platforms. Run-time loading is however a cool solution and
I guess it fits really well for SDL.
Blender has been ready for this for some time thanks to Campbell but I am
unsure if we are actively using the improvements SDL2 brings like joystick
hot-plugging etc.

Quick questions:
What is the state of the wrangler ?

Other then that it seems a very doable and worthwhile goal (for the next
release ?)


On Thu, Nov 13, 2014 at 2:24 PM, Sergey Sharybin <sergey.vfx at gmail.com>

> Hi,
> This is actually coming from a conversation with Martijn about switching to
> SDL-2.0 on Windows, but we need to make everyone informed.
> So basically the need of upgrade on Windows is caused by some issues
> happening with SDL-1.2 (which is currently used for all platforms) on
> Windows 8. So switching to SDL-2.0 would make more windows users happy with
> blender.
> But we need to keep libraries in sync for the release, which means OSX and
> Linux maintainers would need to do modifications to the release environment
> and libraries. It shouldn't be hard, because SDL-2.0 was out for quite some
> time now and Blender itself is totally ready for it.
> So the proposal would be:
> - Martijn takes care of SDL-2.0 on Windows. If needed Sergey helps him.
> - Jens would need to take care of OSX
> - Sergey takes care of Linux builds, for this we'll need to finish the SDL
> wrangler patch (which makes SDL libraries load on runtime and if library is
> not found Blender still works, just doesn't allow to use SDL for sound and
> joystick).
> What does it mean for artists? Well, for OSX and Windows they wouldnt' see
> any difference (apart from some some solved issues). Neither those who runs
> existing builds, nor those who compiles blender themselves.
> For Linux users it'll mean in order to use SDL (sound and joystick) SDL2 is
> to be installed. If this library is not installed, blender WILL run, just
> wouldn't let use SDL functionality. This doesn't seem difficult to install
> if needed, even for current Debian stable (which tends to be quite old)
> there's an official backport for SDL2.
> --
> With best regards, Sergey Sharybin
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