/*
* gstvaapiobject.c - Base VA object
*
- * gstreamer-vaapi (C) 2010-2011 Splitted-Desktop Systems
+ * Copyright (C) 2010-2011 Splitted-Desktop Systems
+ * Author: Gwenole Beauchesne <gwenole.beauchesne@splitted-desktop.com>
+ * Copyright (C) 2012-2013 Intel Corporation
+ * Author: Gwenole Beauchesne <gwenole.beauchesne@intel.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License
* @short_description: Base VA object
*/
-#include "config.h"
+#include "sysdeps.h"
#include "gstvaapiobject.h"
-#include "gstvaapi_priv.h"
-#include "gstvaapiparamspecs.h"
-#include "gstvaapivalue.h"
-#include "gstvaapimarshal.h"
+#include "gstvaapiobject_priv.h"
+#include "gstvaapiminiobject.h"
+#include "gstvaapidisplay_priv.h"
#define DEBUG 1
#include "gstvaapidebug.h"
-G_DEFINE_TYPE(GstVaapiObject, gst_vaapi_object, G_TYPE_OBJECT);
-
-enum {
- PROP_0,
-
- PROP_DISPLAY,
- PROP_ID
-};
-
-enum {
- DESTROY,
-
- LAST_SIGNAL
-};
-
-static guint object_signals[LAST_SIGNAL] = { 0, };
+/* Ensure those symbols are actually defined in the resulting libraries */
+#undef gst_vaapi_object_ref
+#undef gst_vaapi_object_unref
+#undef gst_vaapi_object_replace
static void
-gst_vaapi_object_dispose(GObject *object)
+gst_vaapi_object_finalize(GstVaapiObject *object)
{
- GstVaapiObjectPrivate * const priv = GST_VAAPI_OBJECT(object)->priv;
+ const GstVaapiObjectClass * const klass =
+ GST_VAAPI_OBJECT_GET_CLASS(object);
- if (!priv->is_destroying) {
- priv->is_destroying = TRUE;
- g_signal_emit(object, object_signals[DESTROY], 0);
- priv->is_destroying = FALSE;
- }
+ if (klass->finalize)
+ klass->finalize(object);
+ gst_vaapi_display_replace(&object->display, NULL);
+}
- G_OBJECT_CLASS(gst_vaapi_object_parent_class)->dispose(object);
+void
+gst_vaapi_object_class_init(GstVaapiObjectClass *klass, guint size)
+{
+ GstVaapiMiniObjectClass * const object_class =
+ GST_VAAPI_MINI_OBJECT_CLASS(klass);
+
+ object_class->size = size;
+ object_class->finalize = (GDestroyNotify)gst_vaapi_object_finalize;
}
-static void
-gst_vaapi_object_finalize(GObject *object)
+/**
+ * gst_vaapi_object_new:
+ * @klass: The object class
+ * @display: The #GstVaapiDisplay
+ *
+ * Creates a new #GstVaapiObject. If @klass is NULL, then the size of
+ * the allocated object is the same as sizeof(GstVaapiObject).
+ * If @klass is not NULL, typically when a sub-class is implemented,
+ * that pointer shall reference a statically allocated descriptor.
+ *
+ * This function zero-initializes the derived object data. Also note
+ * that this is an internal function that shall not be used outside of
+ * libgstvaapi libraries.
+ *
+ * Returns: The newly allocated #GstVaapiObject
+ */
+gpointer
+gst_vaapi_object_new(const GstVaapiObjectClass *klass, GstVaapiDisplay *display)
{
- GstVaapiObjectPrivate * const priv = GST_VAAPI_OBJECT(object)->priv;
+ const GstVaapiMiniObjectClass * const object_class =
+ GST_VAAPI_MINI_OBJECT_CLASS(klass);
+ GstVaapiObject *object;
+ guint sub_size;
- priv->id = GST_VAAPI_ID_NONE;
+ g_return_val_if_fail(display != NULL, NULL);
- if (priv->display) {
- g_object_unref(priv->display);
- priv->display = NULL;
- }
+ object = (GstVaapiObject *)gst_vaapi_mini_object_new(object_class);
+ if (!object)
+ return NULL;
- G_OBJECT_CLASS(gst_vaapi_object_parent_class)->finalize(object);
-}
+ object->display = gst_vaapi_display_ref(display);
+ object->object_id = VA_INVALID_ID;
-static void
-gst_vaapi_object_set_property(
- GObject *gobject,
- guint prop_id,
- const GValue *value,
- GParamSpec *pspec
-)
-{
- GstVaapiObject * const object = GST_VAAPI_OBJECT(gobject);
+ sub_size = object_class->size - sizeof(*object);
+ if (sub_size > 0)
+ memset(((guchar *)object) + sizeof(*object), 0, sub_size);
- switch (prop_id) {
- case PROP_DISPLAY:
- object->priv->display = g_object_ref(g_value_get_object(value));
- break;
- case PROP_ID:
- object->priv->id = gst_vaapi_value_get_id(value);
- break;
- default:
- G_OBJECT_WARN_INVALID_PROPERTY_ID(gobject, prop_id, pspec);
- break;
- }
+ if (klass && klass->init)
+ klass->init (object);
+ return object;
}
-static void
-gst_vaapi_object_get_property(
- GObject *gobject,
- guint prop_id,
- GValue *value,
- GParamSpec *pspec
-)
+/**
+ * gst_vaapi_object_ref:
+ * @object: a #GstVaapiObject
+ *
+ * Atomically increases the reference count of the given @object by one.
+ *
+ * Returns: The same @object argument
+ */
+gpointer
+gst_vaapi_object_ref(gpointer object)
{
- GstVaapiObject * const object = GST_VAAPI_OBJECT(gobject);
-
- switch (prop_id) {
- case PROP_DISPLAY:
- g_value_set_object(value, gst_vaapi_object_get_display(object));
- break;
- case PROP_ID:
- gst_vaapi_value_set_id(value, gst_vaapi_object_get_id(object));
- break;
- default:
- G_OBJECT_WARN_INVALID_PROPERTY_ID(gobject, prop_id, pspec);
- break;
- }
+ return gst_vaapi_object_ref_internal(object);
}
-static void
-gst_vaapi_object_class_init(GstVaapiObjectClass *klass)
+/**
+ * gst_vaapi_object_unref:
+ * @object: a #GstVaapiObject
+ *
+ * Atomically decreases the reference count of the @object by one. If
+ * the reference count reaches zero, the object will be free'd.
+ */
+void
+gst_vaapi_object_unref(gpointer object)
{
- GObjectClass * const object_class = G_OBJECT_CLASS(klass);
-
- g_type_class_add_private(klass, sizeof(GstVaapiObjectPrivate));
-
- object_class->dispose = gst_vaapi_object_dispose;
- object_class->finalize = gst_vaapi_object_finalize;
- object_class->set_property = gst_vaapi_object_set_property;
- object_class->get_property = gst_vaapi_object_get_property;
-
- /**
- * GstVaapiObject:display:
- *
- * The #GstVaapiDisplay this object is bound to.
- */
- g_object_class_install_property
- (object_class,
- PROP_DISPLAY,
- g_param_spec_object("display",
- "Display",
- "The GstVaapiDisplay this object is bound to",
- GST_VAAPI_TYPE_DISPLAY,
- G_PARAM_READWRITE|G_PARAM_CONSTRUCT_ONLY));
-
- /**
- * GstVaapiObject:id:
- *
- * The #GstVaapiID contained in this object.
- */
- g_object_class_install_property
- (object_class,
- PROP_ID,
- gst_vaapi_param_spec_id("id",
- "ID",
- "The GstVaapiID contained in this object",
- GST_VAAPI_ID_NONE,
- G_PARAM_READWRITE|G_PARAM_CONSTRUCT_ONLY));
-
- /**
- * GstVaapiObject::destroy:
- * @object: the object which received the signal
- *
- * The ::destroy signal is emitted when an object is destroyed,
- * when the user released the last reference to @object.
- */
- object_signals[DESTROY] = g_signal_new(
- "destroy",
- G_TYPE_FROM_CLASS(object_class),
- G_SIGNAL_RUN_CLEANUP | G_SIGNAL_NO_RECURSE | G_SIGNAL_NO_HOOKS,
- G_STRUCT_OFFSET(GstVaapiObjectClass, destroy),
- NULL, NULL,
- gst_vaapi_marshal_VOID__VOID,
- G_TYPE_NONE, 0
- );
+ gst_vaapi_object_unref_internal(object);
}
-static void
-gst_vaapi_object_init(GstVaapiObject *object)
+/**
+ * gst_vaapi_object_replace:
+ * @old_object_ptr: a pointer to a #GstVaapiObject
+ * @new_object: a #GstVaapiObject
+ *
+ * Atomically replaces the object object held in @old_object_ptr with
+ * @new_object. This means that @old_object_ptr shall reference a
+ * valid object. However, @new_object can be NULL.
+ */
+void
+gst_vaapi_object_replace(gpointer old_object_ptr, gpointer new_object)
{
- GstVaapiObjectPrivate *priv = GST_VAAPI_OBJECT_GET_PRIVATE(object);
-
- object->priv = priv;
- priv->display = NULL;
- priv->id = GST_VAAPI_ID_NONE;
- priv->is_destroying = FALSE;
+ gst_vaapi_object_replace_internal(old_object_ptr, new_object);
}
/**
GstVaapiDisplay *
gst_vaapi_object_get_display(GstVaapiObject *object)
{
- g_return_val_if_fail(GST_VAAPI_IS_OBJECT(object), NULL);
+ g_return_val_if_fail(object != NULL, NULL);
- return object->priv->display;
+ return GST_VAAPI_OBJECT_DISPLAY(object);
}
/**
void
gst_vaapi_object_lock_display(GstVaapiObject *object)
{
- g_return_if_fail(GST_VAAPI_IS_OBJECT(object));
+ g_return_if_fail(object != NULL);
GST_VAAPI_OBJECT_LOCK_DISPLAY(object);
}
void
gst_vaapi_object_unlock_display(GstVaapiObject *object)
{
- g_return_if_fail(GST_VAAPI_IS_OBJECT(object));
+ g_return_if_fail(object != NULL);
GST_VAAPI_OBJECT_UNLOCK_DISPLAY(object);
}
GstVaapiID
gst_vaapi_object_get_id(GstVaapiObject *object)
{
- g_return_val_if_fail(GST_VAAPI_IS_OBJECT(object), GST_VAAPI_ID_NONE);
+ g_return_val_if_fail(object != NULL, 0);
- return object->priv->id;
+ return GST_VAAPI_OBJECT_ID(object);
}
projects / platform / upstream / gstreamer-vaapi.git / blobdiff