soumyasch, on 03 April 2012 - 13:18, said:
Isn't DirectX a proprietary MS API? Wouldn't that mean Sony having to license it? Wouldn't that mean Sony handing over confidential business info to a competitor, giving them a much longer early warning? Wouldn't that automatically prevent any sane company from doing so?
I believe that these days, if you have an interface that's widely used, others are allowed to freely copy that interface. The legality may vary from country to country. In this case, DirectX provides an application programming interface (API) and a device driver interface (DDI). These are so widespread that they can be considered copyable. The implementation that sits between the API and DDI, however, is very much proprietary. That's where Sony would have to do a huge amount of work to efficiently
implement the libraries. This is also why people were initially predicting that Sony would go for OpenGL and other media libraries, since much of the work is already done for them. On the other hand, it makes it much easier to develop games for both platforms, and that would at least be reason enough for Sony to think about such an undertaking. But, these are after all just rumors, so we'll have to wait a bit and see.