gstreamer/gst-libs/gst/vaapi/gstvaapiwindow_priv.h

/*
 *  gstvaapiwindow_priv.h - VA window abstraction (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_WINDOW_PRIV_H
#define GST_VAAPI_WINDOW_PRIV_H

#include "gstvaapiobject_priv.h"

G_BEGIN_DECLS

#define GST_VAAPI_WINDOW_CLASS(klass) \
    ((GstVaapiWindowClass *)(klass))

#define GST_VAAPI_WINDOW_GET_CLASS(obj) \
    GST_VAAPI_WINDOW_CLASS(GST_VAAPI_OBJECT_GET_CLASS(obj))

/* GstVaapiWindowClass hooks */
typedef gboolean  (*GstVaapiWindowCreateFunc)  (GstVaapiWindow *window,
    guint *width, guint *height);
typedef gboolean  (*GstVaapiWindowShowFunc)    (GstVaapiWindow *window);
typedef gboolean  (*GstVaapiWindowHideFunc)    (GstVaapiWindow *window);
typedef gboolean  (*GstVaapiWindowGetGeometryFunc)(GstVaapiWindow *window,
    gint *px, gint *py, guint *pwidth, guint *pheight);
typedef gboolean  (*GstVaapiWindowSetFullscreenFunc)(GstVaapiWindow *window,
    gboolean fullscreen);
typedef gboolean  (*GstVaapiWindowResizeFunc)  (GstVaapiWindow *window,
    guint width, guint height);
typedef gboolean  (*GstVaapiWindowRenderFunc)  (GstVaapiWindow *window,
    GstVaapiSurface *surface, const GstVaapiRectangle *src_rect,
    const GstVaapiRectangle *dst_rect, guint flags);

/**
 * GstVaapiWindow:
 *
 * Base class for system-dependent windows.
 */
struct _GstVaapiWindow {
    /*< private >*/
    GstVaapiObject parent_instance;

    /*< protected >*/
    guint               width;
    guint               height;
    guint               display_width;
    guint               display_height;
    guint               use_foreign_window      : 1;
    guint               is_fullscreen           : 1;
    guint               check_geometry          : 1;
};

/**
 * GstVaapiWindowClass:
 * @create: virtual function to create a window with width and height
 * @show: virtual function to show (map) a window
 * @hide: virtual function to hide (unmap) a window
 * @get_geometry: virtual function to get the current window geometry
 * @set_fullscreen: virtual function to change window fullscreen state
 * @resize: virtual function to resize a window
 * @render: virtual function to render a #GstVaapiSurface into a window
 *
 * Base class for system-dependent windows.
 */
struct _GstVaapiWindowClass {
    /*< private >*/
    GstVaapiObjectClass parent_class;

    /*< protected >*/
    GstVaapiWindowCreateFunc            create;
    GstVaapiWindowShowFunc              show;
    GstVaapiWindowHideFunc              hide;
    GstVaapiWindowGetGeometryFunc       get_geometry;
    GstVaapiWindowSetFullscreenFunc     set_fullscreen;
    GstVaapiWindowResizeFunc            resize;
    GstVaapiWindowRenderFunc            render;
};

GstVaapiWindow *
gst_vaapi_window_new(const GstVaapiWindowClass *window_class,
    GstVaapiDisplay *display, guint width, guint height);

GstVaapiWindow *
gst_vaapi_window_new_from_native(const GstVaapiWindowClass *window_class,
    GstVaapiDisplay *display, gpointer native_window);

/* Inline reference counting for core libgstvaapi library */
#ifdef GST_VAAPI_CORE
#define gst_vaapi_window_ref_internal(window) \
    ((gpointer)gst_vaapi_mini_object_ref(GST_VAAPI_MINI_OBJECT(window)))

#define gst_vaapi_window_unref_internal(window) \
    gst_vaapi_mini_object_unref(GST_VAAPI_MINI_OBJECT(window))

#define gst_vaapi_window_replace_internal(old_window_ptr, new_window) \
    gst_vaapi_mini_object_replace((GstVaapiMiniObject **)(old_window_ptr), \
        GST_VAAPI_MINI_OBJECT(new_window))

#undef  gst_vaapi_window_ref
#define gst_vaapi_window_ref(window) \
    gst_vaapi_window_ref_internal((window))

#undef  gst_vaapi_window_unref
#define gst_vaapi_window_unref(window) \
    gst_vaapi_window_unref_internal((window))

#undef  gst_vaapi_window_replace
#define gst_vaapi_window_replace(old_window_ptr, new_window) \
    gst_vaapi_window_replace_internal((old_window_ptr), (new_window))
#endif

G_END_DECLS

#endif /* GST_VAAPI_WINDOW_PRIV_H */