[SDL] Rotation API

[nfries88]

Rainer Deyke wrote:
> Really, the problem isn't computers without 3D hardware.  The problem is
> broken drivers, missing drivers, outdated drivers, graphics cards that
> aren't supported at all by a given OS, and graphics cards that don't
> support the right version of the right graphics API.

This is the only non-debatable point here.

When I first tried GNU/Linux (my babysteps into the use of Open Source Software, btw) in '05, I couldn't find Linux drivers for my graphics card to save my life.
Even now I occasionally hear from a friend or colleague trying Linux for the first time that for some reason their high-end graphics card isn't working well at all, probably due to wrong/low quality/unavailable drivers.

Since GNU/Linux is certainly one of the bigger systems supported by SDL, I think this scenario is something that shouldn't be overlooked. In the case of a generic 2D SDL application, it would most likely work better with SDL's software renderer than with SDL wrapping a software implementation of a 3D graphics renderer like OpenGL.


I am not in favor of removing the software implementation entirely, nor of removing it from the SDL_Renderer abstraction and making it explicit (which is the better of the two options).




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