/*
 *  gstvaapiobject_priv.h - Base VA object (private definitions)
 *
 *  Copyright (C) 2010-2011 Splitted-Desktop Systems
 *  Copyright (C) 2012 Intel Corporation
 *
 *  This library is free software; you can redistribute it and/or
 *  modify it under the terms of the GNU Lesser General Public License
 *  as published by the Free Software Foundation; either version 2.1
 *  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
 *  Lesser General Public License for more details.
 *
 *  You should have received a copy of the GNU Lesser General Public
 *  License along with this library; if not, write to the Free
 *  Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
 *  Boston, MA 02110-1301 USA
 */

#ifndef GST_VAAPI_OBJECT_PRIV_H
#define GST_VAAPI_OBJECT_PRIV_H

#include <gst/vaapi/gstvaapiobject.h>
#include "gstvaapiminiobject.h"
#include "gstvaapidisplay_priv.h"

G_BEGIN_DECLS

#define GST_VAAPI_OBJECT_CLASS(klass) \
    ((GstVaapiObjectClass *)(klass))

#define GST_VAAPI_IS_OBJECT_CLASS(klass) \
    ((klass) != NULL)

#define GST_VAAPI_OBJECT_GET_CLASS(object) \
    GST_VAAPI_OBJECT_CLASS(GST_VAAPI_MINI_OBJECT_GET_CLASS(object))

typedef struct _GstVaapiObjectClass             GstVaapiObjectClass;
typedef void (*GstVaapiObjectInitFunc)         (GstVaapiObject *object);
typedef void (*GstVaapiObjectFinalizeFunc)     (GstVaapiObject *object);

#define GST_VAAPI_OBJECT_DEFINE_CLASS_WITH_CODE(TN, t_n, code)  \
static inline const GstVaapiObjectClass *                       \
G_PASTE(t_n,_class)(void)                                       \
{                                                               \
    static G_PASTE(TN,Class) g_class;                           \
    static gsize g_class_init = FALSE;                          \
                                                                \
    if (g_once_init_enter(&g_class_init)) {                     \
        GstVaapiObjectClass * const klass =                     \
            GST_VAAPI_OBJECT_CLASS(&g_class);                   \
        gst_vaapi_object_class_init(klass, sizeof(TN));         \
        code;                                                   \
        klass->finalize = (GstVaapiObjectFinalizeFunc)          \
            G_PASTE(t_n,_finalize);                             \
        g_once_init_leave(&g_class_init, TRUE);                 \
    }                                                           \
    return GST_VAAPI_OBJECT_CLASS(&g_class);                    \
}

#define GST_VAAPI_OBJECT_DEFINE_CLASS(TN, t_n) \
    GST_VAAPI_OBJECT_DEFINE_CLASS_WITH_CODE(TN, t_n, /**/)

/**
 * GST_VAAPI_OBJECT_DISPLAY:
 * @object: a #GstVaapiObject
 *
 * Macro that evaluates to the #GstVaapiDisplay the @object is bound to.
 * This is an internal macro that does not do any run-time type check.
 */
#define GST_VAAPI_OBJECT_DISPLAY(object) \
    GST_VAAPI_OBJECT(object)->display

/**
 * GST_VAAPI_OBJECT_ID:
 * @object: a #GstVaapiObject
 *
 * Macro that evaluates to the #GstVaapiID contained in @object.
 * This is an internal macro that does not do any run-time type checks.
 */
#define GST_VAAPI_OBJECT_ID(object) \
    GST_VAAPI_OBJECT(object)->object_id

/**
 * GST_VAAPI_OBJECT_DISPLAY_X11:
 * @object: a #GstVaapiObject
 *
 * Macro that evaluates to the #GstVaapiDisplayX11 the @object is bound to.
 * This is an internal macro that does not do any run-time type check
 * and requires #include "gstvaapidisplay_x11_priv.h"
 */
#define GST_VAAPI_OBJECT_DISPLAY_X11(object) \
    GST_VAAPI_DISPLAY_X11_CAST(GST_VAAPI_OBJECT_DISPLAY(object))

/**
 * GST_VAAPI_OBJECT_DISPLAY_GLX:
 * @object: a #GstVaapiObject
 *
 * Macro that evaluates to the #GstVaapiDisplayGLX the @object is bound to.
 * This is an internal macro that does not do any run-time type check
 * and requires #include "gstvaapidisplay_glx_priv.h".
 */
#define GST_VAAPI_OBJECT_DISPLAY_GLX(object) \
    GST_VAAPI_DISPLAY_GLX_CAST(GST_VAAPI_OBJECT_DISPLAY(object))

/**
 * GST_VAAPI_OBJECT_DISPLAY_WAYLAND:
 * @object: a #GstVaapiObject
 *
 * Macro that evaluates to the #GstVaapiDisplayWayland the @object is
 * bound to.  This is an internal macro that does not do any run-time
 * type check and requires #include "gstvaapidisplay_wayland_priv.h"
 */
#define GST_VAAPI_OBJECT_DISPLAY_WAYLAND(object) \
    GST_VAAPI_DISPLAY_WAYLAND_CAST(GST_VAAPI_OBJECT_DISPLAY(object))

/**
 * GST_VAAPI_OBJECT_VADISPLAY:
 * @object: a #GstVaapiObject
 *
 * Macro that evaluates to the #VADisplay of @display.
 * This is an internal macro that does not do any run-time type check
 * and requires #include "gstvaapidisplay_priv.h".
 */
#define GST_VAAPI_OBJECT_VADISPLAY(object) \
    GST_VAAPI_DISPLAY_VADISPLAY(GST_VAAPI_OBJECT_DISPLAY(object))

/**
 * GST_VAAPI_OBJECT_XDISPLAY:
 * @object: a #GstVaapiObject
 *
 * Macro that evaluates to the underlying X11 #Display of @display.
 * This is an internal macro that does not do any run-time type check
 * and requires #include "gstvaapidisplay_x11_priv.h".
 */
#define GST_VAAPI_OBJECT_XDISPLAY(object) \
    GST_VAAPI_DISPLAY_XDISPLAY(GST_VAAPI_OBJECT_DISPLAY(object))

/**
 * GST_VAAPI_OBJECT_XSCREEN:
 * @object: a #GstVaapiObject
 *
 * Macro that evaluates to the underlying X11 screen of @display.
 * This is an internal macro that does not do any run-time type check
 * and requires #include "gstvaapidisplay_x11_priv.h".
 */
#define GST_VAAPI_OBJECT_XSCREEN(object) \
    GST_VAAPI_DISPLAY_XSCREEN(GST_VAAPI_OBJECT_DISPLAY(object))

/**
 * GST_VAAPI_OBJECT_WL_DISPLAY:
 * @object: a #GstVaapiObject
 *
 * Macro that evaluates to the underlying #wl_display of @display.
 * This is an internal macro that does not do any run-time type check
 * and requires #include "gstvaapidisplay_wayland_priv.h".
 */
#define GST_VAAPI_OBJECT_WL_DISPLAY(object) \
    GST_VAAPI_DISPLAY_WL_DISPLAY(GST_VAAPI_OBJECT_DISPLAY(object))

/**
 * GST_VAAPI_OBJECT_LOCK_DISPLAY:
 * @object: a #GstVaapiObject
 *
 * Macro that locks the #GstVaapiDisplay contained in the @object.
 * This is an internal macro that does not do any run-time type check.
 */
#define GST_VAAPI_OBJECT_LOCK_DISPLAY(object) \
    GST_VAAPI_DISPLAY_LOCK(GST_VAAPI_OBJECT_DISPLAY(object))

/**
 * GST_VAAPI_OBJECT_UNLOCK_DISPLAY:
 * @object: a #GstVaapiObject
 *
 * Macro that unlocks the #GstVaapiDisplay contained in the @object.
 * This is an internal macro that does not do any run-time type check.
 */
#define GST_VAAPI_OBJECT_UNLOCK_DISPLAY(object) \
    GST_VAAPI_DISPLAY_UNLOCK(GST_VAAPI_OBJECT_DISPLAY(object))

/**
 * GstVaapiObject:
 *
 * VA object base.
 */
struct _GstVaapiObject {
    /*< private >*/
    GstVaapiMiniObject  parent_instance;

    GstVaapiDisplay    *display;
    GstVaapiID          object_id;
};

/**
 * GstVaapiObjectClass:
 *
 * VA object base class.
 */
struct _GstVaapiObjectClass {
    /*< private >*/
    GstVaapiMiniObjectClass     parent_class;

    GstVaapiObjectInitFunc      init;
    GstVaapiObjectFinalizeFunc  finalize;
};

void
gst_vaapi_object_class_init(GstVaapiObjectClass *klass, guint size);

gpointer
gst_vaapi_object_new(const GstVaapiObjectClass *klass,
    GstVaapiDisplay *display);

/* Inline reference counting for core libgstvaapi library */
#ifdef GST_VAAPI_CORE
static inline gpointer
gst_vaapi_object_ref_internal(gpointer object)
{
    return gst_vaapi_mini_object_ref(object);
}

static inline void
gst_vaapi_object_unref_internal(gpointer object)
{
    gst_vaapi_mini_object_unref(object);
}

static inline void
gst_vaapi_object_replace_internal(gpointer old_object_ptr, gpointer new_object)
{
    gst_vaapi_mini_object_replace((GstVaapiMiniObject **)old_object_ptr,
        new_object);
}

#undef  gst_vaapi_object_ref
#define gst_vaapi_object_ref(object) \
    gst_vaapi_object_ref_internal((object))

#undef  gst_vaapi_object_unref
#define gst_vaapi_object_unref(object) \
    gst_vaapi_object_unref_internal((object))

#undef  gst_vaapi_object_replace
#define gst_vaapi_object_replace(old_object_ptr, new_object) \
    gst_vaapi_object_replace_internal((old_object_ptr), (new_object))
#endif

G_END_DECLS

#endif /* GST_VAAPI_OBJECT_PRIV_H */