glx: Remove pointless GLX_INTEL_swap_event paranoia

It's not our job to filter this out, it's the server's job to not send
events that haven't been selected for. We'll still throw the event away
if we don't have any client-side state for it though.

Acked-by: David Heidelberg <david.heidelberg@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/20300>

src/glx/dri2_glx.c

@@ -649,7 +649,7 @@ unsigned dri2GetSwapEventType(Display* dpy, XID drawable)
       struct glx_display *glx_dpy = __glXInitialize(dpy);
       __GLXDRIdrawable *pdraw;
       pdraw = dri2GetGlxDrawableFromXDrawableId(dpy, drawable);
-      if (!pdraw || !(pdraw->eventMask & GLX_BUFFER_SWAP_COMPLETE_INTEL_MASK))
+      if (!pdraw)
          return 0;
       return glx_dpy->codes.first_event + GLX_BufferSwapComplete;
 }

src/glx/glx_pbuffer.c

@@ -64,10 +64,6 @@ ChangeDrawableAttribute(Display * dpy, GLXDrawable drawable,
                         const CARD32 * attribs, size_t num_attribs)
 {
    struct glx_display *priv = __glXInitialize(dpy);
-#ifdef GLX_DIRECT_RENDERING
-   __GLXDRIdrawable *pdraw;
-   int i;
-#endif
    CARD32 *output;
    CARD8 opcode;
 
@@ -112,22 +108,6 @@ ChangeDrawableAttribute(Display * dpy, GLXDrawable drawable,
    UnlockDisplay(dpy);
    SyncHandle();
 
-#ifdef GLX_DIRECT_RENDERING
-   pdraw = GetGLXDRIDrawable(dpy, drawable);
-
-   if (!pdraw)
-      return;
-
-   for (i = 0; i < num_attribs; i++) {
-      switch(attribs[i * 2]) {
-      case GLX_EVENT_MASK:
-	 /* Keep a local copy for masking out DRI2 proto events as needed */
-	 pdraw->eventMask = attribs[i * 2 + 1];
-	 break;
-      }
-   }
-#endif
-
    return;
 }
 

src/glx/glxclient.h

@@ -127,7 +127,6 @@ struct __GLXDRIdrawableRec
    struct glx_screen *psc;
    GLenum textureTarget;
    GLenum textureFormat;        /* EXT_texture_from_pixmap support */
-   unsigned long eventMask;
    int refcount;
 };