From 80ca38c4428a499a795084dc696c390b707749b9 Mon Sep 17 00:00:00 2001
From: Hans de Goede <hdegoede@redhat.com>
Date: Thu, 29 Aug 2019 22:45:12 +0200
Subject: [PATCH xserver 06/24] xwayland: Add per client private data
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Add per client private data, which for now is empty.

This is a preparation patch for adding randr/vidmode resolution
change emulation.

Reviewed-by: Olivier Fourdan <ofourdan@redhat.com>
Acked-by: Michel Dänzer <mdaenzer@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
(cherry picked from commit 905cb8b9e27add5f49a45fe167a0005bf05218bc)
---
 hw/xwayland/xwayland.c | 14 ++++++++++++++
 hw/xwayland/xwayland.h |  5 +++++
 2 files changed, 19 insertions(+)

diff --git a/hw/xwayland/xwayland.c b/hw/xwayland/xwayland.c
index 3c50396f1..b0e37ceb9 100644
--- a/hw/xwayland/xwayland.c
+++ b/hw/xwayland/xwayland.c
@@ -135,11 +135,18 @@ ddxProcessArgument(int argc, char *argv[], int i)
     return 0;
 }
 
+static DevPrivateKeyRec xwl_client_private_key;
 static DevPrivateKeyRec xwl_window_private_key;
 static DevPrivateKeyRec xwl_screen_private_key;
 static DevPrivateKeyRec xwl_pixmap_private_key;
 static DevPrivateKeyRec xwl_damage_private_key;
 
+struct xwl_client *
+xwl_client_get(ClientPtr client)
+{
+    return dixLookupPrivate(&client->devPrivates, &xwl_client_private_key);
+}
+
 static struct xwl_window *
 xwl_window_get(WindowPtr window)
 {
@@ -1143,6 +1150,13 @@ xwl_screen_init(ScreenPtr pScreen, int argc, char **argv)
         return FALSE;
     if (!dixRegisterPrivateKey(&xwl_damage_private_key, PRIVATE_WINDOW, 0))
         return FALSE;
+    /* There are no easy to use new / delete client hooks, we could use a
+     * ClientStateCallback, but it is easier to let the dix code manage the
+     * memory for us. This will zero fill the initial xwl_client data.
+     */
+    if (!dixRegisterPrivateKey(&xwl_client_private_key, PRIVATE_CLIENT,
+                               sizeof(struct xwl_client)))
+        return FALSE;
 
     dixSetPrivate(&pScreen->devPrivates, &xwl_screen_private_key, xwl_screen);
     xwl_screen->screen = pScreen;
diff --git a/hw/xwayland/xwayland.h b/hw/xwayland/xwayland.h
index c66997f00..593e92b64 100644
--- a/hw/xwayland/xwayland.h
+++ b/hw/xwayland/xwayland.h
@@ -379,8 +379,13 @@ struct xwl_output {
     Bool xdg_output_done;
 };
 
+struct xwl_client {
+};
+
 void xwl_window_create_frame_callback(struct xwl_window *xwl_window);
 
+struct xwl_client *xwl_client_get(ClientPtr client);
+
 void xwl_sync_events (struct xwl_screen *xwl_screen);
 void xwl_surface_damage(struct xwl_screen *xwl_screen,
                         struct wl_surface *surface,
-- 
2.25.2