gst-libs/gst/vaapi/gstvaapiwindow.h

   1 /*
   2  *  gstvaapiwindow.h - VA window abstraction
   3  *
   4  *  gstreamer-vaapi (C) 2010 Splitted-Desktop Systems
   5  *
   6  *  This program is free software; you can redistribute it and/or modify
   7  *  it under the terms of the GNU General Public License as published by
   8  *  the Free Software Foundation; either version 2 of the License, or
   9  *  (at your option) any later version.
  10  *
  11  *  This program is distributed in the hope that it will be useful,
  12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  *  GNU General Public License for more details.
  15  *
  16  *  You should have received a copy of the GNU General Public License
  17  *  along with this program; if not, write to the Free Software
  18  *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
  19  */
  20
  21 #ifndef GST_VAAPI_WINDOW_H
  22 #define GST_VAAPI_WINDOW_H
  23
  24 #include <gst/video/gstvideosink.h>
  25 #include <gst/vaapi/gstvaapidisplay.h>
  26 #include <gst/vaapi/gstvaapisurface.h>
  27
  28 G_BEGIN_DECLS
  29
  30 #define GST_VAAPI_TYPE_WINDOW \
  31     (gst_vaapi_window_get_type())
  32
  33 #define GST_VAAPI_WINDOW(obj)                           \
  34     (G_TYPE_CHECK_INSTANCE_CAST((obj),                  \
  35                                 GST_VAAPI_TYPE_WINDOW,  \
  36                                 GstVaapiWindow))
  37
  38 #define GST_VAAPI_WINDOW_CLASS(klass)                   \
  39     (G_TYPE_CHECK_CLASS_CAST((klass),                   \
  40                              GST_VAAPI_TYPE_WINDOW,     \
  41                              GstVaapiWindowClass))
  42
  43 #define GST_VAAPI_IS_WINDOW(obj) \
  44     (G_TYPE_CHECK_INSTANCE_TYPE((obj), GST_VAAPI_TYPE_WINDOW))
  45
  46 #define GST_VAAPI_IS_WINDOW_CLASS(klass) \
  47     (G_TYPE_CHECK_CLASS_TYPE((klass), GST_VAAPI_TYPE_WINDOW))
  48
  49 #define GST_VAAPI_WINDOW_GET_CLASS(obj)                 \
  50     (G_TYPE_INSTANCE_GET_CLASS((obj),                   \
  51                                GST_VAAPI_TYPE_WINDOW,   \
  52                                GstVaapiWindowClass))
  53
  54 typedef struct _GstVaapiWindow                  GstVaapiWindow;
  55 typedef struct _GstVaapiWindowPrivate           GstVaapiWindowPrivate;
  56 typedef struct _GstVaapiWindowClass             GstVaapiWindowClass;
  57
  58 /**
  59  * GstVaapiWindow:
  60  *
  61  * Base class for system-dependent windows.
  62  */
  63 struct _GstVaapiWindow {
  64     /*< private >*/
  65     GObject parent_instance;
  66
  67     GstVaapiWindowPrivate *priv;
  68 };
  69
  70 /**
  71  * GstVaapiWindowClass:
  72  * @create: virtual function to create a window with width and height
  73  * @destroy: virtual function to destroy a window
  74  * @show: virtual function to show (map) a window
  75  * @hide: virtual function to hide (unmap) a window
  76  * @resize: virtual function to resize a window
  77  * @render: virtual function to render a #GstVaapiSurface into a window
  78  *
  79  * Base class for system-dependent windows.
  80  */
  81 struct _GstVaapiWindowClass {
  82     /*< private >*/
  83     GObjectClass parent_class;
  84
  85     /*< public >*/
  86     gboolean    (*create) (GstVaapiWindow *window, guint *width, guint *height);
  87     void        (*destroy)(GstVaapiWindow *window);
  88     gboolean    (*show)   (GstVaapiWindow *window);
  89     gboolean    (*hide)   (GstVaapiWindow *window);
  90     gboolean    (*resize) (GstVaapiWindow *window, guint width, guint height);
  91     gboolean    (*render) (GstVaapiWindow *window,
  92                            GstVaapiSurface *surface,
  93                            const GstVideoRectangle *src_rect,
  94                            const GstVideoRectangle *dst_rect,
  95                            guint flags);
  96 };
  97
  98 GType
  99 gst_vaapi_window_get_type(void);
 100
 101 void
 102 gst_vaapi_window_show(GstVaapiWindow *window);
 103
 104 void
 105 gst_vaapi_window_hide(GstVaapiWindow *window);
 106
 107 guint
 108 gst_vaapi_window_get_width(GstVaapiWindow *window);
 109
 110 guint
 111 gst_vaapi_window_get_height(GstVaapiWindow *window);
 112
 113 void
 114 gst_vaapi_window_get_size(GstVaapiWindow *window, guint *pwidth, guint *pheight);
 115
 116 void
 117 gst_vaapi_window_set_width(GstVaapiWindow *window, guint width);
 118
 119 void
 120 gst_vaapi_window_set_height(GstVaapiWindow *window, guint height);
 121
 122 void
 123 gst_vaapi_window_set_size(GstVaapiWindow *window, guint width, guint height);
 124
 125 gboolean
 126 gst_vaapi_window_put_surface(
 127     GstVaapiWindow          *window,
 128     GstVaapiSurface         *surface,
 129     const GstVideoRectangle *src_rect,
 130     const GstVideoRectangle *dst_rect,
 131     guint                    flags
 132 );
 133
 134 G_END_DECLS
 135
 136 #endif /* GST_VAAPI_WINDOW_H */