In other words, I couldn't care less if the latest DX prevents a game from running on XP as I wouldn't be playing it anyway. P.s I don't play games last time I did was many years ago and I've never been a gamer the only reason why I use a GPU (other than display a video) is to use OpenCl to speed up Discrete Cosine Transform and Fourier Transform calculations. My memory might not be perfect, though, but I'm pretty sure this was the situation 'till a few years ago, before people started forgetting about it. DirectX 12 does not have a manual standalone setup which can be downloaded separately. What do I do if it doesn't? Either help the project yourself or nothing. Although OpenGl is a fairly good protocol and the translated calcs are "just" Single Precision Floating Point which are perfectly handled by the GPU (both AMD and NVIDIA) due to the large number of 32bit capable units in consumer GPUs (there are a lot of single precision units and half precision units in consumer GPUs and just a few double precision units), unfortunately translating calls back and forth slows the whole thing down. As result, others ported the Linux implementation to XP: on Linux DX10/11 games go through a wrapper which translates the calls to OpenGl, executes them with the GPU and then it translates it back.
Besides, the Russian team that was working on it dropped the project. The thing is that the backported version has never been finished and it has a very limited compatibility with games.
There are two patches: one is a backport of the official DX11 done by a Russian team (the same team that backported DX10), the other one is a wrapper for OpenGl.
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