[Mesa-dev] [PATCH 1/6] x11: remove empty GLX_SGIX_swap_barrier stubs

[Emil Velikov]

From: Emil Velikov <emil.velikov at collabora.com>

The extension was never implemented. Quick search suggests:
 - no actual users (on my Arch setup)
 - the Nvidia driver does not implement the extension

Signed-off-by: Emil Velikov <emil.velikov at collabora.com>
---
 src/mesa/drivers/x11/fakeglx.c | 25 -------------------------
 src/mesa/drivers/x11/glxapi.c  | 28 ----------------------------
 src/mesa/drivers/x11/glxapi.h  |  4 ----
 3 files changed, 57 deletions(-)

diff --git a/src/mesa/drivers/x11/fakeglx.c b/src/mesa/drivers/x11/fakeglx.c
index 42c48264bab..c49178b9afa 100644
--- a/src/mesa/drivers/x11/fakeglx.c
+++ b/src/mesa/drivers/x11/fakeglx.c
@@ -2695,27 +2695,6 @@ Fake_glXJoinSwapGroupSGIX(Display *dpy, GLXDrawable drawable, GLXDrawable member
 
 
 
-/*** GLX_SGIX_swap_barrier ***/
-
-static void
-Fake_glXBindSwapBarrierSGIX(Display *dpy, GLXDrawable drawable, int barrier)
-{
-   (void) dpy;
-   (void) drawable;
-   (void) barrier;
-}
-
-static Bool
-Fake_glXQueryMaxSwapBarriersSGIX(Display *dpy, int screen, int *max)
-{
-   (void) dpy;
-   (void) screen;
-   (void) max;
-   return False;
-}
-
-
-
 /*** GLX_SUN_get_transparent_index ***/
 
 static Status
@@ -2959,10 +2938,6 @@ _mesa_GetGLXDispatchTable(void)
    /*** GLX_SGIX_swap_group ***/
    glx.JoinSwapGroupSGIX = Fake_glXJoinSwapGroupSGIX;
 
-   /*** GLX_SGIX_swap_barrier ***/
-   glx.BindSwapBarrierSGIX = Fake_glXBindSwapBarrierSGIX;
-   glx.QueryMaxSwapBarriersSGIX = Fake_glXQueryMaxSwapBarriersSGIX;
-
    /*** GLX_SUN_get_transparent_index ***/
    glx.GetTransparentIndexSUN = Fake_glXGetTransparentIndexSUN;
 
diff --git a/src/mesa/drivers/x11/glxapi.c b/src/mesa/drivers/x11/glxapi.c
index 5017546c7e3..637c6ae3caf 100644
--- a/src/mesa/drivers/x11/glxapi.c
+++ b/src/mesa/drivers/x11/glxapi.c
@@ -923,30 +923,6 @@ glXJoinSwapGroupSGIX(Display *dpy, GLXDrawable drawable, GLXDrawable member)
 }
 
 
-/*** GLX_SGIX_swap_barrier ***/
-
-void PUBLIC
-glXBindSwapBarrierSGIX(Display *dpy, GLXDrawable drawable, int barrier)
-{
-   struct _glxapi_table *t;
-   GET_DISPATCH(dpy, t);
-   if (!t)
-      return;
-   t->BindSwapBarrierSGIX(dpy, drawable, barrier);
-}
-
-Bool PUBLIC
-glXQueryMaxSwapBarriersSGIX(Display *dpy, int screen, int *max)
-{
-   struct _glxapi_table *t;
-   GET_DISPATCH(dpy, t);
-   if (!t)
-      return False;
-   return t->QueryMaxSwapBarriersSGIX(dpy, screen, max);
-}
-
-
-
 /*** GLX_SUN_get_transparent_index ***/
 
 Status PUBLIC
@@ -1204,10 +1180,6 @@ static struct name_address_pair GLX_functions[] = {
    /*** GLX_SGIX_swap_group ***/
    { "glXJoinSwapGroupSGIX", (__GLXextFuncPtr) glXJoinSwapGroupSGIX },
 
-   /*** GLX_SGIX_swap_barrier ***/
-   { "glXBindSwapBarrierSGIX", (__GLXextFuncPtr) glXBindSwapBarrierSGIX },
-   { "glXQueryMaxSwapBarriersSGIX", (__GLXextFuncPtr) glXQueryMaxSwapBarriersSGIX },
-
    /*** GLX_SUN_get_transparent_index ***/
    { "glXGetTransparentIndexSUN", (__GLXextFuncPtr) glXGetTransparentIndexSUN },
 
diff --git a/src/mesa/drivers/x11/glxapi.h b/src/mesa/drivers/x11/glxapi.h
index 7bccc50aa78..4f3087cac7a 100644
--- a/src/mesa/drivers/x11/glxapi.h
+++ b/src/mesa/drivers/x11/glxapi.h
@@ -167,10 +167,6 @@ struct _glxapi_table {
    /*** GLX_SGIX_swap_group ***/
    void (*JoinSwapGroupSGIX)(Display *, GLXDrawable, GLXDrawable);
 
-   /*** GLX_SGIX_swap_barrier ***/
-   void (*BindSwapBarrierSGIX)(Display *, GLXDrawable, int);
-   Bool (*QueryMaxSwapBarriersSGIX)(Display *, int, int *);
-
    /*** GLX_SUN_get_transparent_index ***/
    Status (*GetTransparentIndexSUN)(Display *, Window, Window, long *);
 
-- 
2.16.0