From aa49563defa6776426a451a308a0a431cbfd5468 Mon Sep 17 00:00:00 2001
From: "Enrico Weigelt, metux IT consult" <info@metux.net>
Date: Mon, 2 Jun 2025 18:32:07 +0200
Subject: [PATCH] xfree86: compat: re-export DeliverEvents() for horryibly
 maintained Nvidia

NVidia yet again doing crazy shit in their proprietary drivers:
Video drivers have no business with directly send messages to clients.

For whatever weird reasons they have their own RandR extension implementation
(that's competing with the Xserver's one) *within* the video driver.

Let that sink in! Insane.

At some point one might ask the question why they're not forking the whole
Xserver itself (they once did, back in the 90s)

But still trying to be kind with Nvidia victims, thus adding a little wrapper
function under the old name. It spills out a log warning calling users to file
bug reports their driver vendor.

Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
---
 hw/xfree86/compat/deliverevents.c | 30 ++++++++++++++++++++++++++++++
 hw/xfree86/compat/meson.build     |  1 +
 2 files changed, 31 insertions(+)
 create mode 100644 hw/xfree86/compat/deliverevents.c

diff --git a/hw/xfree86/compat/deliverevents.c b/hw/xfree86/compat/deliverevents.c
new file mode 100644
index 000000000..7d6f65e4e
--- /dev/null
+++ b/hw/xfree86/compat/deliverevents.c
@@ -0,0 +1,30 @@
+#include <dix-config.h>
+
+#include <X11/Xfuncproto.h>
+
+#include "dix/dix_priv.h"
+
+/*
+ * this is specifically for NVidia proprietary driver: they're again lagging
+ * behind a year, doing at least some minimal cleanup of their code base.
+ * All attempts to get in direct contact with them have failed.
+ */
+
+_X_EXPORT enum EventDeliveryState DeliverEvents(WindowPtr pWindow,
+                                               xEventPtr events,
+                                               size_t nEvents,
+                                               WindowPtr otherParent);
+
+enum EventDeliveryState DeliverEvents(WindowPtr pWindow,
+                                      xEventPtr events,
+                                      size_t nEvents,
+                                      WindowPtr otherParent)
+{
+    LogMessageVerb(X_WARNING, 0, "Bogus driver calling DIX-internal function DeliverEvents() !\n");
+    LogMessageVerb(X_WARNING, 0, "External drivers really should never ever call this function.\n");
+    LogMessageVerb(X_WARNING, 0, "File a bug report to driver vendor or use a FOSS driver.\n");
+    LogMessageVerb(X_WARNING, 0, "Proprietary drivers are inherently unstable, they just can't be done right.\n");
+    LogMessageVerb(X_WARNING, 0, "And just don't buy Nvidia hardware, ever.\n");
+
+    return dixDeliverEvents(pWindow, events, nEvents, otherParent);
+}
diff --git a/hw/xfree86/compat/meson.build b/hw/xfree86/compat/meson.build
index d863ab2d8..c29531ba9 100644
--- a/hw/xfree86/compat/meson.build
+++ b/hw/xfree86/compat/meson.build
@@ -1,5 +1,6 @@
 srcs_xorg_compat = [
     'clientexception.c',
+    'deliverevents.c',
     'log.c',
     'ones.c',
     'xf86Helper.c',