diff options
| author | Chris Robinson <[email protected]> | 2023-09-12 22:32:34 -0700 |
|---|---|---|
| committer | Chris Robinson <[email protected]> | 2023-09-12 22:32:34 -0700 |
| commit | a7fc952036668d6e6bdf7737cc13e92b4002259c (patch) | |
| tree | 9a48f5faa59cb9ef82f5e2f746ddb0e04846de71 | |
| parent | 6722ad196145ef7334d7478bdd375308801e7096 (diff) | |
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).
| -rw-r--r-- | alc/alc.cpp | 3 | ||||
| -rw-r--r-- | alc/export_list.h | 1 | ||||
| -rw-r--r-- | alc/inprogext.h | 4 |
3 files changed, 8 insertions, 0 deletions
diff --git a/alc/alc.cpp b/alc/alc.cpp index 0c42edbc..baa4788f 100644 --- a/alc/alc.cpp +++ b/alc/alc.cpp @@ -2564,6 +2564,9 @@ ALC_API ALCboolean ALC_APIENTRY alcIsExtensionPresent(ALCdevice *device, const A } +ALCvoid* ALC_APIENTRY alcGetProcAddress2(ALCdevice *device, const ALCchar *funcName) noexcept +{ return alcGetProcAddress(device, funcName); } + ALC_API ALCvoid* ALC_APIENTRY alcGetProcAddress(ALCdevice *device, const ALCchar *funcName) noexcept { if(!funcName) 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), diff --git a/alc/inprogext.h b/alc/inprogext.h index fe2a1437..2fa425bb 100644 --- a/alc/inprogext.h +++ b/alc/inprogext.h @@ -65,6 +65,8 @@ AL_API void AL_APIENTRY alAuxiliaryEffectSlotStopvSOFT(ALsizei n, const ALuint * #ifndef AL_EXT_direct_context #define AL_EXT_direct_context +typedef ALCvoid* (ALC_APIENTRY *LPALCGETPROCADDRESS2)(ALCdevice *device, const ALCchar *funcname) AL_API_NOEXCEPT17; + typedef void (AL_APIENTRY *LPALENABLEDIRECT)(ALCcontext *context, ALenum capability) AL_API_NOEXCEPT17; typedef void (AL_APIENTRY *LPALDISABLEDIRECT)(ALCcontext *context, ALenum capability) AL_API_NOEXCEPT17; typedef ALboolean (AL_APIENTRY *LPALISENABLEDDIRECT)(ALCcontext *context, ALenum capability) AL_API_NOEXCEPT17; @@ -224,6 +226,8 @@ typedef ALenum (AL_APIENTRY *LPEAXGETDIRECT)(ALCcontext *context, const struct _ typedef ALboolean (AL_APIENTRY *LPEAXSETBUFFERMODEDIRECT)(ALCcontext *context, ALsizei n, const ALuint *buffers, ALint value) AL_API_NOEXCEPT17; typedef ALenum (AL_APIENTRY *LPEAXGETBUFFERMODEDIRECT)(ALCcontext *context, ALuint buffer, ALint *pReserved) AL_API_NOEXCEPT17; #ifdef AL_ALEXT_PROTOTYPES +ALCvoid* AL_APIENTRY alcGetProcAddress2(ALCdevice *device, const ALchar *funcName) AL_API_NOEXCEPT; + void AL_APIENTRY alEnableDirect(ALCcontext *context, ALenum capability) AL_API_NOEXCEPT; void AL_APIENTRY alDisableDirect(ALCcontext *context, ALenum capability) AL_API_NOEXCEPT; ALboolean AL_APIENTRY alIsEnabledDirect(ALCcontext *context, ALenum capability) AL_API_NOEXCEPT; |