From a47e9773d65ea78fb57d492dad2bff670ebcacb5 Mon Sep 17 00:00:00 2001
From: Brandon Wright <bearoso@gmail.com>
Date: Tue, 16 Oct 2018 17:26:24 -0500
Subject: [PATCH] Software Wayland mostly works.

---
 gtk/src/gtk_display.cpp   | 25 +++++++++++++++++++++----
 gtk/src/gtk_display.h     |  1 +
 gtk/src/gtk_s9x.h         |  3 +++
 gtk/src/gtk_s9xwindow.cpp | 17 +++++++++++++----
 4 files changed, 38 insertions(+), 8 deletions(-)

diff --git a/gtk/src/gtk_display.cpp b/gtk/src/gtk_display.cpp
index fce472db..7616e55b 100644
--- a/gtk/src/gtk_display.cpp
+++ b/gtk/src/gtk_display.cpp
@@ -1577,10 +1577,12 @@ S9xDisplayReconfigure (void)
 void
 S9xQueryDrivers (void)
 {
-#if defined(USE_XV) && defined(GDK_WINDOWING_X11)
-    gui_config->allow_xv = S9xXVDisplayDriver::query_availability ();
-#else
+    GdkDisplay *display = gtk_widget_get_display (GTK_WIDGET (top_level->get_window()));
+
     gui_config->allow_xv = 0;
+#if defined(USE_XV) && defined(GDK_WINDOWING_X11)
+    if (GDK_IS_X11_DISPLAY (display))
+        gui_config->allow_xv = S9xXVDisplayDriver::query_availability ();
 #endif
 
 #ifdef USE_OPENGL
@@ -1591,7 +1593,6 @@ S9xQueryDrivers (void)
 
     gui_config->allow_xrandr = 0;
 #ifdef GDK_WINDOWING_X11
-    GdkDisplay *display = gtk_widget_get_display (GTK_WIDGET (top_level->get_window()));
     if (GDK_IS_X11_DISPLAY (display))
     {
         int error_base_p, event_base_p;
@@ -1612,6 +1613,22 @@ S9xQueryDrivers (void)
 
 bool8
 S9xDeinitUpdate (int width, int height)
+{
+    GdkWindow *gdk_window = gtk_widget_get_window (GTK_WIDGET (top_level->get_window ()));
+
+#ifdef GDK_WINDOWING_X11
+    if (GDK_IS_X11_WINDOW (gdk_window))
+    {
+        return S9xRealDeinitUpdate (width, height);
+    }
+#endif
+
+    gtk_widget_queue_draw (GTK_WIDGET (top_level->drawing_area));
+    return TRUE;
+}
+
+bool8
+S9xRealDeinitUpdate (int width, int height)
 {
     int yoffset = 0;
 
diff --git a/gtk/src/gtk_display.h b/gtk/src/gtk_display.h
index 989da4fc..d2174241 100644
--- a/gtk/src/gtk_display.h
+++ b/gtk/src/gtk_display.h
@@ -111,6 +111,7 @@ void S9xDisplayClearBuffers (void);
 void S9xReinitDisplay (void);
 void S9xDisplayReconfigure (void);
 void S9xQueryDrivers (void);
+bool8 S9xRealDeinitUpdate (int width, int height);
 
 S9xDisplayDriver *S9xDisplayGetDriver (void);
 
diff --git a/gtk/src/gtk_s9x.h b/gtk/src/gtk_s9x.h
index 054422ac..c2ef0134 100644
--- a/gtk/src/gtk_s9x.h
+++ b/gtk/src/gtk_s9x.h
@@ -39,6 +39,9 @@ extern Snes9xConfig *gui_config;
 #if GTK_MAJOR_VERSION >= 3
 #define GDK_COMPAT_WINDOW_XID(window) (gdk_x11_window_get_xid (window))
 #else
+#define GDK_WINDOWING_X11
+#define GDK_IS_X11_WINDOW(window) TRUE
+#define GDK_IS_X11_DISPLAY(display) TRUE
 #define GDK_COMPAT_WINDOW_XID(window) (GDK_WINDOW_XWINDOW (window))
 #endif
 
diff --git a/gtk/src/gtk_s9xwindow.cpp b/gtk/src/gtk_s9xwindow.cpp
index 592e0635..4e2480ff 100644
--- a/gtk/src/gtk_s9xwindow.cpp
+++ b/gtk/src/gtk_s9xwindow.cpp
@@ -765,14 +765,23 @@ Snes9xWindow::expose (void)
         config->window_height = get_height ();
     }
 
-    if (is_paused ()
+#ifdef GDK_WINDOWING_X11
+    if (GDK_IS_X11_WINDOW (gtk_widget_get_window (window)))
+    {
+        if (is_paused ()
 #ifdef NETPLAY_SUPPORT
             || NetPlay.Paused
 #endif
-    )
-    {
-        S9xDeinitUpdate (last_width, last_height);
+        )
+        {
+            S9xDeinitUpdate (last_width, last_height);
+        }
+
+        return;
     }
+#endif
+
+    S9xRealDeinitUpdate (last_width, last_height);
 
     return;
 }