Add a alcGetProcAddress2 function

This is essentially just a copy of alcGetProcAddress. It's purpose is to bypass
Creative's router's alcGetProcAddress implementation, which returns its own
functions even if given a device handle. When combined with it also wrapping
the drivers' device and context handles, that prevents any extention function
that needs a recognizable device or context handle from working, like the
*Direct functions, as there's no way for the app to get a device or context
handle the driver can know about).

An alternate function to get function pointers allows a driver to return its
own implementation for standard and extension functions, which an application
can use to "bootstrap" audio to use a particular driver directly, enabling
use of extensions that the router gets in the way of (and also avoid the
overhead of the router, however small that may be).

1 files changed, 1 insertions, 0 deletions

diff --git a/alc/export_list.h b/alc/export_list.h
index 9e92570e..cefe7a09 100644
--- a/alc/export_list.h
+++ b/alc/export_list.h
@@ -220,6 +220,7 @@ inline const FuncExport alcFunctions[]{
     DECL(alGetDebugMessageLogEXT),
 
     /* Direct Context functions */
+    DECL(alcGetProcAddress2),
     DECL(alEnableDirect),
     DECL(alDisableDirect),
     DECL(alIsEnabledDirect),