From 5c77b640d4d4f3d05145cd75baf47c0608d3a5b9 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jonas=20=C3=85dahl?= <jadahl@gmail.com>
Date: Thu, 6 May 2021 12:11:36 +0200
Subject: [PATCH] egl: Add helper for eglBindWaylandDisplayWL

Lets us untangle awkward Cogl setup dependencies.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1863>
---
 src/backends/meta-egl.c | 20 ++++++++++++++++++++
 src/backends/meta-egl.h |  5 +++++
 2 files changed, 25 insertions(+)

diff --git a/src/backends/meta-egl.c b/src/backends/meta-egl.c
index 866bf2dc2..17c3c5e49 100644
--- a/src/backends/meta-egl.c
+++ b/src/backends/meta-egl.c
@@ -46,6 +46,7 @@ struct _MetaEgl
   PFNEGLCREATEIMAGEKHRPROC eglCreateImageKHR;
   PFNEGLDESTROYIMAGEKHRPROC eglDestroyImageKHR;
 
+  PFNEGLBINDWAYLANDDISPLAYWL eglBindWaylandDisplayWL;
   PFNEGLQUERYWAYLANDBUFFERWL eglQueryWaylandBufferWL;
 
   PFNEGLQUERYDEVICESEXTPROC eglQueryDevicesEXT;
@@ -699,6 +700,24 @@ meta_egl_swap_buffers (MetaEgl   *egl,
   return TRUE;
 }
 
+gboolean
+meta_egl_bind_wayland_display (MetaEgl            *egl,
+                               EGLDisplay          display,
+                               struct wl_display  *wayland_display,
+                               GError            **error)
+{
+  if (!is_egl_proc_valid (egl->eglBindWaylandDisplayWL, error))
+    return FALSE;
+
+  if (!egl->eglBindWaylandDisplayWL (display, wayland_display))
+    {
+      set_egl_error (error);
+      return FALSE;
+    }
+
+  return TRUE;
+}
+
 gboolean
 meta_egl_query_wayland_buffer (MetaEgl            *egl,
                                EGLDisplay          display,
@@ -1077,6 +1096,7 @@ meta_egl_constructed (GObject *object)
   GET_EGL_PROC_ADDR (eglCreateImageKHR);
   GET_EGL_PROC_ADDR (eglDestroyImageKHR);
 
+  GET_EGL_PROC_ADDR (eglBindWaylandDisplayWL);
   GET_EGL_PROC_ADDR (eglQueryWaylandBufferWL);
 
   GET_EGL_PROC_ADDR (eglQueryDevicesEXT);
diff --git a/src/backends/meta-egl.h b/src/backends/meta-egl.h
index 4591e7d85..fa7741a67 100644
--- a/src/backends/meta-egl.h
+++ b/src/backends/meta-egl.h
@@ -154,6 +154,11 @@ gboolean meta_egl_swap_buffers (MetaEgl   *egl,
                                 EGLSurface surface,
                                 GError   **error);
 
+gboolean meta_egl_bind_wayland_display (MetaEgl            *egl,
+                                        EGLDisplay          display,
+                                        struct wl_display  *wayland_display,
+                                        GError            **error);
+
 gboolean meta_egl_query_wayland_buffer (MetaEgl            *egl,
                                         EGLDisplay          display,
                                         struct wl_resource *buffer,