gl/wayland: add GstGLDisplayWayland

Simple implementation split from GstGLWindowWayland

Can now have multiple glimagesink elements all displaying output
linked via GL or otherwise (barring GL platform limitations).

The intel driver is racy and can crash setting up the two glimagesink contexts.

e.g.
videotestsrc ! tee name=t ! queue ! glupload ! glimagesinkelement
  t. ! queue ! gleffects_blur ! glimagesinkelement

videotestsrc ! glupload ! glfiltercube ! tee name=t ! queue ! glimagesinkelement
  t. ! queue ! gleffects_blur ! glimagesinkelement

gst-libs/gst/gl/gstgldisplay.c

@@ -62,6 +62,9 @@
 #if GST_GL_HAVE_WINDOW_X11
 #include <gst/gl/x11/gstgldisplay_x11.h>
 #endif
+#if GST_GL_HAVE_WINDOW_WAYLAND
+#include <gst/gl/wayland/gstgldisplay_wayland.h>
+#endif
 #if GST_GL_HAVE_PLATFORM_EGL
 #include <gst/gl/egl/gstgldisplay_egl.h>
 #include <gst/gl/egl/gsteglimagememory.h>
@@ -174,7 +177,7 @@ gst_gl_display_new (void)
 #endif
 #if GST_GL_HAVE_WINDOW_WAYLAND
   if (!display && (!user_choice || g_strstr_len (user_choice, 7, "wayland")))
-    display = g_object_new (GST_TYPE_GL_DISPLAY, NULL);
+    display = GST_GL_DISPLAY (gst_gl_display_wayland_new (NULL));
 #endif
 #if GST_GL_HAVE_PLATFORM_EGL
   if (!display && (!platform_choice

gst-libs/gst/gl/wayland/Makefile.am

@@ -3,10 +3,12 @@
 noinst_LTLIBRARIES = libgstgl-wayland.la
 
 libgstgl_wayland_la_SOURCES = \
+	gstgldisplay_wayland.c \
 	gstglwindow_wayland_egl.c \
 	wayland_event_source.c
 
 noinst_HEADERS = \
+	gstgldisplay_wayland.h \
 	gstglwindow_wayland_egl.h \
 	wayland_event_source.h
 

gst-libs/gst/gl/wayland/gstgldisplay_wayland.c

@@ -0,0 +1,157 @@
+/*
+ * GStreamer
+ * Copyright (C) 2013 Matthew Waters <ystreet00@gmail.com>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <gst/gl/wayland/gstgldisplay_wayland.h>
+
+GST_DEBUG_CATEGORY_STATIC (gst_gl_display_debug);
+#define GST_CAT_DEFAULT gst_gl_display_debug
+
+G_DEFINE_TYPE (GstGLDisplayWayland, gst_gl_display_wayland,
+    GST_TYPE_GL_DISPLAY);
+
+static void gst_gl_display_wayland_finalize (GObject * object);
+static guintptr gst_gl_display_wayland_get_handle (GstGLDisplay * display);
+
+static void
+registry_handle_global (void *data, struct wl_registry *registry,
+    uint32_t name, const char *interface, uint32_t version)
+{
+  GstGLDisplayWayland *display = data;
+
+  GST_TRACE_OBJECT (display, "registry_handle_global with registry %p, "
+      "interface %s, version %u", registry, interface, version);
+
+  if (g_strcmp0 (interface, "wl_compositor") == 0) {
+    display->compositor =
+        wl_registry_bind (registry, name, &wl_compositor_interface, 1);
+  } else if (g_strcmp0 (interface, "wl_shell") == 0) {
+    display->shell = wl_registry_bind (registry, name, &wl_shell_interface, 1);
+  }
+}
+
+static const struct wl_registry_listener registry_listener = {
+  registry_handle_global
+};
+
+static void
+_connect_listeners (GstGLDisplayWayland * display)
+{
+  display->registry = wl_display_get_registry (display->display);
+  wl_registry_add_listener (display->registry, &registry_listener, display);
+
+  wl_display_roundtrip (display->display);
+}
+
+static void
+gst_gl_display_wayland_class_init (GstGLDisplayWaylandClass * klass)
+{
+  GST_GL_DISPLAY_CLASS (klass)->get_handle =
+      GST_DEBUG_FUNCPTR (gst_gl_display_wayland_get_handle);
+
+  G_OBJECT_CLASS (klass)->finalize = gst_gl_display_wayland_finalize;
+}
+
+static void
+gst_gl_display_wayland_init (GstGLDisplayWayland * display_wayland)
+{
+  GstGLDisplay *display = (GstGLDisplay *) display_wayland;
+
+  display->type = GST_GL_DISPLAY_TYPE_WAYLAND;
+  display_wayland->foreign_display = FALSE;
+}
+
+static void
+gst_gl_display_wayland_finalize (GObject * object)
+{
+  GstGLDisplayWayland *display_wayland = GST_GL_DISPLAY_WAYLAND (object);
+
+  if (!display_wayland->foreign_display && display_wayland->display) {
+    wl_display_flush (display_wayland->display);
+    wl_display_disconnect (display_wayland->display);
+  }
+
+  G_OBJECT_CLASS (gst_gl_display_wayland_parent_class)->finalize (object);
+}
+
+/**
+ * gst_gl_display_wayland_new:
+ * @name: (allow-none): a display name
+ *
+ * Create a new #GstGLDisplayWayland from the wayland display name.  See wl_display_connect()
+ * for details on what is a valid name.
+ *
+ * Returns: (transfer full): a new #GstGLDisplayWayland or %NULL
+ */
+GstGLDisplayWayland *
+gst_gl_display_wayland_new (const gchar * name)
+{
+  GstGLDisplayWayland *ret;
+
+  GST_DEBUG_CATEGORY_GET (gst_gl_display_debug, "gldisplay");
+
+  ret = g_object_new (GST_TYPE_GL_DISPLAY_WAYLAND, NULL);
+  ret->display = wl_display_connect (name);
+
+  if (!ret->display) {
+    GST_ERROR ("Failed to open X11 display connection with name, \'%s\'", name);
+    return NULL;
+  }
+
+  _connect_listeners (ret);
+
+  return ret;
+}
+
+/**
+ * gst_gl_display_wayland_new_with_display:
+ * @display: an existing, wayland display
+ *
+ * Creates a new display connection from a wl_display Display.
+ *
+ * Returns: (transfer full): a new #GstGLDisplayWayland
+ */
+GstGLDisplayWayland *
+gst_gl_display_wayland_new_with_display (struct wl_display * display)
+{
+  GstGLDisplayWayland *ret;
+
+  g_return_val_if_fail (display != NULL, NULL);
+
+  GST_DEBUG_CATEGORY_GET (gst_gl_display_debug, "gldisplay");
+
+  ret = g_object_new (GST_TYPE_GL_DISPLAY_WAYLAND, NULL);
+
+  ret->display = display;
+  ret->foreign_display = TRUE;
+
+  _connect_listeners (ret);
+
+  return ret;
+}
+
+static guintptr
+gst_gl_display_wayland_get_handle (GstGLDisplay * display)
+{
+  return (guintptr) GST_GL_DISPLAY_WAYLAND (display)->display;
+}

gst-libs/gst/gl/wayland/gstgldisplay_wayland.h

@@ -0,0 +1,74 @@
+/*
+ * GStreamer
+ * Copyright (C) 2013 Matthew Waters <ystreet00@gmail.com>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#ifndef __GST_GL_DISPLAY_WAYLAND_H__
+#define __GST_GL_DISPLAY_WAYLAND_H__
+
+#include <gst/gst.h>
+
+#include <wayland-client.h>
+
+#include <gst/gl/gstgl_fwd.h>
+#include <gst/gl/gstgldisplay.h>
+
+G_BEGIN_DECLS
+
+GType gst_gl_display_wayland_get_type (void);
+
+#define GST_TYPE_GL_DISPLAY_WAYLAND             (gst_gl_display_wayland_get_type())
+#define GST_GL_DISPLAY_WAYLAND(obj)             (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_GL_DISPLAY_WAYLAND,GstGLDisplayWayland))
+#define GST_GL_DISPLAY_WAYLAND_CLASS(klass)     (G_TYPE_CHECK_CLASS_CAST((klass), GST_TYPE_GL_DISPLAY_WAYLAND,GstGLDisplayWaylandClass))
+#define GST_IS_GL_DISPLAY_WAYLAND(obj)          (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_GL_DISPLAY_WAYLAND))
+#define GST_IS_GL_DISPLAY_WAYLAND_CLASS(klass)  (G_TYPE_CHECK_CLASS_TYPE((klass), GST_TYPE_GL_DISPLAY_WAYLAND))
+#define GST_GL_DISPLAY_WAYLAND_CAST(obj)        ((GstGLDisplayWayland*)(obj))
+
+typedef struct _GstGLDisplayWayland GstGLDisplayWayland;
+typedef struct _GstGLDisplayWaylandClass GstGLDisplayWaylandClass;
+
+/**
+ * GstGLDisplayWayland:
+ *
+ * the contents of a #GstGLDisplayWayland are private and should only be accessed
+ * through the provided API
+ */
+struct _GstGLDisplayWayland
+{
+  GstGLDisplay            parent;
+
+  struct wl_display       *display;
+  struct wl_registry      *registry;
+  struct wl_compositor    *compositor;
+  struct wl_shell         *shell;
+
+  /* <private> */
+  gboolean foreign_display;
+};
+
+struct _GstGLDisplayWaylandClass
+{
+  GstGLDisplayClass object_class;
+};
+
+GstGLDisplayWayland *gst_gl_display_wayland_new (const gchar * name);
+GstGLDisplayWayland *gst_gl_display_wayland_new_with_display (struct wl_display *display);
+
+G_END_DECLS
+
+#endif /* __GST_GL_DISPLAY_WAYLAND_H__ */

gst-libs/gst/gl/wayland/gstglwindow_wayland_egl.c

@@ -32,6 +32,7 @@
 #include "../gstgl_fwd.h"
 #include <gst/gl/gstglcontext.h>
 
+#include "gstgldisplay_wayland.h"
 #include "gstglwindow_wayland_egl.h"
 
 const gchar *WlEGLErrorString ();
@@ -57,6 +58,7 @@ static gboolean gst_gl_window_wayland_egl_open (GstGLWindow * window,
     GError ** error);
 static guintptr gst_gl_window_wayland_egl_get_display (GstGLWindow * window);
 
+#if 0
 static void
 pointer_handle_enter (void *data, struct wl_pointer *pointer, uint32_t serial,
     struct wl_surface *surface, wl_fixed_t sx_w, wl_fixed_t sy_w)
@@ -188,7 +190,7 @@ seat_handle_capabilities (void *data, struct wl_seat *seat,
 static const struct wl_seat_listener seat_listener = {
   seat_handle_capabilities,
 };
-
+#endif
 static void
 handle_ping (void *data, struct wl_shell_surface *shell_surface,
     uint32_t serial)
@@ -229,11 +231,13 @@ static const struct wl_shell_surface_listener shell_surface_listener = {
 static gboolean
 create_surface (GstGLWindowWaylandEGL * window_egl)
 {
+  GstGLDisplayWayland *display =
+      GST_GL_DISPLAY_WAYLAND (GST_GL_WINDOW (window_egl)->display);
+
   window_egl->window.surface =
-      wl_compositor_create_surface (window_egl->display.compositor);
+      wl_compositor_create_surface (display->compositor);
   window_egl->window.shell_surface =
-      wl_shell_get_shell_surface (window_egl->display.shell,
-      window_egl->window.surface);
+      wl_shell_get_shell_surface (display->shell, window_egl->window.surface);
 
   wl_shell_surface_add_listener (window_egl->window.shell_surface,
       &shell_surface_listener, window_egl);
@@ -271,36 +275,6 @@ destroy_surface (GstGLWindowWaylandEGL * window_egl)
     wl_callback_destroy (window_egl->window.callback);
 }
 
-static void
-registry_handle_global (void *data, struct wl_registry *registry,
-    uint32_t name, const char *interface, uint32_t version)
-{
-  GstGLWindowWaylandEGL *window_egl = data;
-  struct display *d = &window_egl->display;
-
-  GST_TRACE_OBJECT (window_egl, "registry_handle_global with registry %p, "
-      "interface %s, version %u", registry, interface, version);
-
-  if (g_strcmp0 (interface, "wl_compositor") == 0) {
-    d->compositor =
-        wl_registry_bind (registry, name, &wl_compositor_interface, 1);
-  } else if (g_strcmp0 (interface, "wl_shell") == 0) {
-    d->shell = wl_registry_bind (registry, name, &wl_shell_interface, 1);
-  } else if (g_strcmp0 (interface, "wl_seat") == 0) {
-    d->seat = wl_registry_bind (registry, name, &wl_seat_interface, 1);
-    wl_seat_add_listener (d->seat, &seat_listener, window_egl);
-  } else if (g_strcmp0 (interface, "wl_shm") == 0) {
-    d->shm = wl_registry_bind (registry, name, &wl_shm_interface, 1);
-    d->cursor_theme = wl_cursor_theme_load (NULL, 32, d->shm);
-    d->default_cursor =
-        wl_cursor_theme_get_cursor (d->cursor_theme, "left_ptr");
-  }
-}
-
-static const struct wl_registry_listener registry_listener = {
-  registry_handle_global
-};
-
 static void
 gst_gl_window_wayland_egl_class_init (GstGLWindowWaylandEGLClass * klass)
 {
@@ -366,23 +340,6 @@ gst_gl_window_wayland_egl_close (GstGLWindow * window)
 
   destroy_surface (window_egl);
 
-  if (window_egl->display.cursor_surface)
-    wl_surface_destroy (window_egl->display.cursor_surface);
-
-  if (window_egl->display.cursor_theme)
-    wl_cursor_theme_destroy (window_egl->display.cursor_theme);
-
-  if (window_egl->display.shell)
-    wl_shell_destroy (window_egl->display.shell);
-
-  if (window_egl->display.compositor)
-    wl_compositor_destroy (window_egl->display.compositor);
-
-  if (window_egl->display.display) {
-    wl_display_flush (window_egl->display.display);
-    wl_display_disconnect (window_egl->display.display);
-  }
-
   g_source_destroy (window_egl->wl_source);
   g_source_unref (window_egl->wl_source);
   window_egl->wl_source = NULL;
@@ -391,37 +348,25 @@ gst_gl_window_wayland_egl_close (GstGLWindow * window)
 static gboolean
 gst_gl_window_wayland_egl_open (GstGLWindow * window, GError ** error)
 {
+  GstGLDisplayWayland *display = GST_GL_DISPLAY_WAYLAND (window->display);
   GstGLWindowWaylandEGL *window_egl = GST_GL_WINDOW_WAYLAND_EGL (window);
 
-  window_egl->display.display = wl_display_connect (NULL);
-  if (!window_egl->display.display) {
+  if (!display->display) {
     g_set_error (error, GST_GL_WINDOW_ERROR,
         GST_GL_WINDOW_ERROR_RESOURCE_UNAVAILABLE,
-        "Failed to connect to Wayland display server");
-    goto error;
+        "Failed to retreive Wayland display");
+    return FALSE;
   }
 
-  window_egl->display.registry =
-      wl_display_get_registry (window_egl->display.display);
-  wl_registry_add_listener (window_egl->display.registry, &registry_listener,
-      window_egl);
-
-  wl_display_dispatch (window_egl->display.display);
+  wl_display_roundtrip (display->display);
 
   create_surface (window_egl);
 
-  window_egl->display.cursor_surface =
-      wl_compositor_create_surface (window_egl->display.compositor);
-
-  window_egl->wl_source =
-      wayland_event_source_new (window_egl->display.display);
+  window_egl->wl_source = wayland_event_source_new (display->display);
 
   g_source_attach (window_egl->wl_source, window_egl->main_context);
 
   return TRUE;
-
-error:
-  return FALSE;
 }
 
 static void
@@ -546,9 +491,7 @@ gst_gl_window_wayland_egl_draw (GstGLWindow * window)
 static guintptr
 gst_gl_window_wayland_egl_get_display (GstGLWindow * window)
 {
-  GstGLWindowWaylandEGL *window_egl;
+  GstGLDisplayWayland *display = GST_GL_DISPLAY_WAYLAND (window->display);
 
-  window_egl = GST_GL_WINDOW_WAYLAND_EGL (window);
-
-  return (guintptr) window_egl->display.display;
+  return (guintptr) display->display;
 }