[gtk/wip/ebassi/gdk-egl-x11] Unset the current EGL context if we're disposing it

[Emmanuele Bassi <ebassi src gnome org>]

commit 76a0ac4b0c01c057884ddf67ef274a74d42efb9b
Author: Emmanuele Bassi <ebassi gnome org>
Date:   Thu Jul 18 18:53:26 2019 +0100

    Unset the current EGL context if we're disposing it
    
    The condition of the check should be reversed: if the context in the
    process of being disposed is the currently set one then we should unset
    it.

 gdk/x11/gdkglcontext-x11-eglx.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
---
diff --git a/gdk/x11/gdkglcontext-x11-eglx.c b/gdk/x11/gdkglcontext-x11-eglx.c
index ad9b61378a..dd369c0831 100644
--- a/gdk/x11/gdkglcontext-x11-eglx.c
+++ b/gdk/x11/gdkglcontext-x11-eglx.c
@@ -554,7 +554,8 @@ gdk_x11_gl_context_dispose (GObject *gobject)
       GdkGLContext *context = GDK_GL_CONTEXT (gobject);
       GdkDisplay *display = gdk_gl_context_get_display (context);
 
-      if (eglGetCurrentContext () != context_x11->egl_context)
+      /* Unset the current context if we're disposing it */
+      if (eglGetCurrentContext () == context_x11->egl_context)
         eglMakeCurrent (gdk_x11_display_get_egl_display (display),
                         EGL_NO_SURFACE,
                         EGL_NO_SURFACE,