Performance methods

[raj]

add some timer methods

fun get_ticks64 = SDL_GetTicks64 : UInt64
fun get_performance_counter = SDL_GetPerformanceCounter : UInt64
fun get_performance_frequency = SDL_GetPerformanceFrequency : UInt64
fun delay = SDL_Delay(ms : LibC::UInt) : Void

[Hadeweka]

First of all, thank you!

A few things:

Firstly, the files in the src directory are generated automatically. A simple rerun of the generator script would just overwrite your code as it currently is, so you'd have to make sure that the generator scripts explicitely generate the bindings by using the SDL header files. You'd have to include the methods or libraries there.

Secondly, is there a specific reason to use the SDL time measuring functions over the ones natively provided by Crystal? Because so far I don't see the need for these methods. A similar discussion arose some years ago in another SDL repository:
ysbaddaden/sdl.cr#17