This class contains native methods that can be used to call dynamically loaded functions. It is used internally by the LWJGL bindings, but can also be used to call other dynamically loaded functions. Not all possible signatures are available, only those needed by the LWJGL bindings. To call a function that does not have a matching JNI method, LibFFI can used.

All JNI methods in this class take an extra parameter, called __functionAddress. This must be a valid pointer to a native function with a matching signature. Due to overloading, method names are partially mangled:

• call or invoke

  Methods with the invoke prefix will invoke the native function with the default calling convention. Methods with the call prefix will invoke the native function with the __stdcall calling convention on Windows and the default calling convention on other systems.

• a U (unsigned) or a B (signed) for each byte parameter
• a C (unsigned) or an S (signed) for each short parameter
• a J, a N or a P for each long parameter

  J parameters represent 64-bit integer values. N parameters represent C long values, which may be 32-bit or 64-bit integers depending on the platform. P parameters represent pointer addresses, which maybe 32-bit or 64-bit values depending on the JVM.

• the return value JNI type signature