Fixed bug 1925 - SDL_GetPerformanceFrequency returns incorrect value on iOS

PoopiSan

Currently on OSX and iOS simulator the values:
mach_base_info.denom = 1
mach_base_info.numer = 1

but on the real iOS device
mach_base_info.denom = 3
mach_base_info.numer = 125

The calculation is made using following formula
mach_base_info.denom / mach_base_info.numer * 1000000

but all values are int32 and the result is casted to int64.

This solves the problem:

return 1.0 * mach_base_info.denom / mach_base_info.numer * 1000000;