From 0a6359fc59d70209f4fb41db5d5cb5f02945dafa Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Sebastian=20Dr=C3=B6ge?= <slomo@circular-chaos.org>
Date: Mon, 15 Jul 2013 18:01:55 +0200
Subject: [PATCH] [757/906] egl: Create an offscreen surface if no window was
 provided

---
 gst-libs/gst/gl/gstglegl.c | 25 +++++++++++++++++++++++--
 1 file changed, 23 insertions(+), 2 deletions(-)

diff --git a/gst-libs/gst/gl/gstglegl.c b/gst-libs/gst/gl/gstglegl.c
index 480937cbdc..71441bc9fe 100644
--- a/gst-libs/gst/gl/gstglegl.c
+++ b/gst-libs/gst/gl/gstglegl.c
@@ -196,8 +196,29 @@ gst_gl_egl_create_context (EGLDisplay display, EGLNativeWindowType window,
     goto failure;
   }
 
-  egl->egl_surface =
-      eglCreateWindowSurface (egl->egl_display, egl->egl_config, window, NULL);
+
+  if (window) {
+    egl->egl_surface =
+        eglCreateWindowSurface (egl->egl_display, egl->egl_config, window,
+        NULL);
+  } else {
+    EGLint surface_attrib[7];
+    gint j = 0;
+
+    /* FIXME: Width/height doesn't seem to matter but we can't leave them
+     * at 0, otherwise X11 complains about BadValue */
+    surface_attrib[j++] = EGL_WIDTH;
+    surface_attrib[j++] = 1;
+    surface_attrib[j++] = EGL_HEIGHT;
+    surface_attrib[j++] = 1;
+    surface_attrib[j++] = EGL_LARGEST_PBUFFER;
+    surface_attrib[j++] = EGL_TRUE;
+    surface_attrib[j++] = EGL_NONE;
+
+    egl->egl_surface =
+        eglCreatePbufferSurface (egl->egl_display, egl->egl_config,
+        surface_attrib);
+  }
 
   if (egl->egl_surface != EGL_NO_SURFACE) {
     GST_INFO ("surface created");