cogl: Port Display away from CoglObject

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3193>

clutter/clutter/clutter-backend.c

@@ -261,7 +261,7 @@ clutter_backend_do_real_create_context (ClutterBackend  *backend,
 error:
   if (backend->cogl_display != NULL)
     {
-      cogl_object_unref (backend->cogl_display);
+      g_object_unref (backend->cogl_display);
       backend->cogl_display = NULL;
     }
 

cogl/cogl/cogl-context.c

@@ -155,11 +155,11 @@ cogl_context_new (CoglDisplay *display,
       cogl_object_unref(renderer);
     }
   else
-    cogl_object_ref (display);
+    g_object_ref (display);
 
   if (!cogl_display_setup (display, error))
     {
-      cogl_object_unref (display);
+      g_object_unref (display);
       g_free (context);
       return NULL;
     }
@@ -182,14 +182,14 @@ cogl_context_new (CoglDisplay *display,
   winsys = _cogl_context_get_winsys (context);
   if (!winsys->context_init (context, error))
     {
-      cogl_object_unref (display);
+      g_object_unref (display);
       g_free (context);
       return NULL;
     }
 
   if (!context->driver_vtable->context_init (context))
     {
-      cogl_object_unref (display);
+      g_object_unref (display);
       g_free (context);
       g_set_error (error, G_IO_ERROR, G_IO_ERROR_FAILED,
                    "Failed to initialize context");
@@ -302,7 +302,7 @@ cogl_context_new (CoglDisplay *display,
                                    &local_error);
   if (!context->default_gl_texture_2d_tex)
     {
-      cogl_object_unref (display);
+      g_object_unref (display);
       g_free (context);
       g_propagate_prefixed_error (error, local_error,
                                   "Failed to create 1x1 fallback texture: ");
@@ -392,7 +392,7 @@ _cogl_context_free (CoglContext *context)
 
   driver->context_deinit (context);
 
-  cogl_object_unref (context->display);
+  g_object_unref (context->display);
 
   g_hash_table_remove_all (context->named_pipelines);
   g_hash_table_destroy (context->named_pipelines);

cogl/cogl/cogl-display-private.h

@@ -30,14 +30,13 @@
 
 #pragma once
 
-#include "cogl/cogl-object-private.h"
 #include "cogl/cogl-display.h"
 #include "cogl/cogl-renderer.h"
 #include "cogl/cogl-onscreen-template.h"
 
 struct _CoglDisplay
 {
-  CoglObject _parent;
+  GObjectClass parnet_class;
 
   gboolean setup;
   CoglRenderer *renderer;

cogl/cogl/cogl-display.c

@@ -34,17 +34,13 @@
 #include <string.h>
 
 #include "cogl/cogl-private.h"
-#include "cogl/cogl-object.h"
 
 #include "cogl/cogl-display-private.h"
 #include "cogl/cogl-renderer-private.h"
-#include "cogl/cogl-gtype-private.h"
 #include "cogl/winsys/cogl-winsys-private.h"
 
-static void _cogl_display_free (CoglDisplay *display);
 
-COGL_OBJECT_DEFINE (Display, display);
-COGL_GTYPE_DEFINE_CLASS (Display, display);
+G_DEFINE_TYPE (CoglDisplay, cogl_display, G_TYPE_OBJECT);
 
 static const CoglWinsysVtable *
 _cogl_display_get_winsys (CoglDisplay *display)
@@ -53,8 +49,10 @@ _cogl_display_get_winsys (CoglDisplay *display)
 }
 
 static void
-_cogl_display_free (CoglDisplay *display)
+cogl_display_dispose (GObject *object)
 {
+  CoglDisplay *display = COGL_DISPLAY (object);
+
   const CoglWinsysVtable *winsys;
 
   if (display->setup)
@@ -76,14 +74,27 @@ _cogl_display_free (CoglDisplay *display)
       display->onscreen_template = NULL;
     }
 
-  g_free (display);
+  G_OBJECT_CLASS (cogl_display_parent_class)->dispose (object);
+}
+
+static void
+cogl_display_init (CoglDisplay *display)
+{
+}
+
+static void
+cogl_display_class_init (CoglDisplayClass *class)
+{
+  GObjectClass *object_class = G_OBJECT_CLASS (class);
+
+  object_class->dispose = cogl_display_dispose;
 }
 
 CoglDisplay *
 cogl_display_new (CoglRenderer         *renderer,
                   CoglOnscreenTemplate *onscreen_template)
 {
-  CoglDisplay *display = g_new0 (CoglDisplay, 1);
+  CoglDisplay *display = g_object_new (COGL_TYPE_DISPLAY, NULL);
   GError *error = NULL;
 
   _cogl_init ();
@@ -99,8 +110,6 @@ cogl_display_new (CoglRenderer *renderer,
 
   display->setup = FALSE;
 
-  display = _cogl_display_object_new (display);
-
   cogl_display_set_onscreen_template (display, onscreen_template);
 
   return display;

cogl/cogl/cogl-display.h

@@ -44,8 +44,9 @@
 G_BEGIN_DECLS
 
 /**
- * SECTION:cogl-display
- * @short_description: Common aspects of a display pipeline
+ * CoglDisplay:
+ *
+ * Common aspects of a display pipeline
  *
  * The basic intention for this object is to let the application
  * configure common display preferences before creating a context, and
@@ -67,15 +68,14 @@ G_BEGIN_DECLS
 
 typedef struct _CoglDisplay CoglDisplay;
 
-#define COGL_DISPLAY(OBJECT) ((CoglDisplay *)OBJECT)
+#define COGL_TYPE_DISPLAY (cogl_display_get_type ())
 
-/**
- * cogl_display_get_gtype:
- *
- * Returns: a #GType that can be used with the GLib type system.
- */
 COGL_EXPORT
-GType cogl_display_get_gtype (void);
+G_DECLARE_FINAL_TYPE (CoglDisplay,
+                      cogl_display,
+                      COGL,
+                      DISPLAY,
+                      GObject)
 
 /**
  * cogl_display_new:
@@ -181,16 +181,4 @@ COGL_EXPORT gboolean
 cogl_display_setup (CoglDisplay *display,
                     GError     **error);
 
-/**
- * cogl_is_display:
- * @object: A #CoglObject pointer
- *
- * Gets whether the given object references a #CoglDisplay.
- *
- * Return value: %TRUE if the object references a #CoglDisplay
- *   and %FALSE otherwise.
- */
-COGL_EXPORT gboolean
-cogl_is_display (void *object);
-
 G_END_DECLS

cogl/cogl/cogl-renderer.c

@@ -249,11 +249,11 @@ cogl_renderer_check_onscreen_template (CoglRenderer *renderer,
   display = cogl_display_new (renderer, onscreen_template);
   if (!cogl_display_setup (display, error))
     {
-      cogl_object_unref (display);
+      g_object_unref (display);
       return FALSE;
     }
 
-  cogl_object_unref (display);
+  g_object_unref (display);
 
   return TRUE;
 }