gst-libs/gst/vaapi/gstvaapidisplay_x11.c

   1 /*
   2  *  gstvaapidisplay_x11.c - VA/X11 display 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 #include "config.h"
  22 #include "vaapi_utils.h"
  23 #include "gstvaapidisplay_x11.h"
  24
  25 #define DEBUG 1
  26 #include "vaapi_debug.h"
  27
  28 G_DEFINE_TYPE(GstVaapiDisplayX11,
  29               gst_vaapi_display_x11,
  30               GST_VAAPI_TYPE_DISPLAY);
  31
  32 #define GST_VAAPI_DISPLAY_X11_GET_PRIVATE(obj)                  \
  33     (G_TYPE_INSTANCE_GET_PRIVATE((obj),                         \
  34                                  GST_VAAPI_TYPE_DISPLAY_X11,    \
  35                                  GstVaapiDisplayX11Private))
  36
  37 struct _GstVaapiDisplayX11Private {
  38     Display *display;
  39 };
  40
  41 enum {
  42     PROP_0,
  43
  44     PROP_X11_DISPLAY
  45 };
  46
  47 static void
  48 gst_vaapi_display_x11_set_display(GstVaapiDisplayX11 *display,
  49                                   Display            *x11_display);
  50
  51 static void
  52 gst_vaapi_display_x11_finalize(GObject *object)
  53 {
  54     GstVaapiDisplayX11        *display = GST_VAAPI_DISPLAY_X11(object);
  55     GstVaapiDisplayX11Private *priv    = display->priv;
  56
  57     G_OBJECT_CLASS(gst_vaapi_display_x11_parent_class)->finalize(object);
  58 }
  59
  60 static void
  61 gst_vaapi_display_x11_set_property(GObject      *object,
  62                                    guint         prop_id,
  63                                    const GValue *value,
  64                                    GParamSpec   *pspec)
  65 {
  66     GstVaapiDisplayX11        *display = GST_VAAPI_DISPLAY_X11(object);
  67     GstVaapiDisplayX11Private *priv    = display->priv;
  68
  69     switch (prop_id) {
  70     case PROP_X11_DISPLAY:
  71         gst_vaapi_display_x11_set_display(display, g_value_get_pointer(value));
  72         break;
  73     default:
  74         G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);
  75         break;
  76     }
  77 }
  78
  79 static void
  80 gst_vaapi_display_x11_get_property(GObject    *object,
  81                                    guint       prop_id,
  82                                    GValue     *value,
  83                                    GParamSpec *pspec)
  84 {
  85     GstVaapiDisplayX11        *display = GST_VAAPI_DISPLAY_X11(object);
  86     GstVaapiDisplayX11Private *priv    = display->priv;
  87
  88     switch (prop_id) {
  89     case PROP_X11_DISPLAY:
  90         g_value_set_pointer(value, gst_vaapi_display_x11_get_display(display));
  91         break;
  92     default:
  93         G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);
  94         break;
  95     }
  96 }
  97
  98 static void
  99 gst_vaapi_display_x11_class_init(GstVaapiDisplayX11Class *klass)
 100 {
 101     GObjectClass * const object_class = G_OBJECT_CLASS(klass);
 102
 103     g_type_class_add_private(klass, sizeof(GstVaapiDisplayX11Private));
 104
 105     object_class->finalize     = gst_vaapi_display_x11_finalize;
 106     object_class->set_property = gst_vaapi_display_x11_set_property;
 107     object_class->get_property = gst_vaapi_display_x11_get_property;
 108
 109     g_object_class_install_property
 110         (object_class,
 111          PROP_X11_DISPLAY,
 112          g_param_spec_pointer("x11-display",
 113                               "X11 display",
 114                               "X11 display",
 115                               G_PARAM_READWRITE|G_PARAM_CONSTRUCT_ONLY));
 116 }
 117
 118 static void
 119 gst_vaapi_display_x11_init(GstVaapiDisplayX11 *display)
 120 {
 121     GstVaapiDisplayX11Private *priv = GST_VAAPI_DISPLAY_X11_GET_PRIVATE(display);
 122
 123     display->priv = priv;
 124     priv->display = NULL;
 125 }
 126
 127 Display *
 128 gst_vaapi_display_x11_get_display(GstVaapiDisplayX11 *display)
 129 {
 130     GstVaapiDisplayX11Private *priv = display->priv;
 131
 132     return priv->display;
 133 }
 134
 135 void
 136 gst_vaapi_display_x11_set_display(GstVaapiDisplayX11 *display,
 137                                   Display            *x11_display)
 138 {
 139     GstVaapiDisplayX11Private *priv = display->priv;
 140
 141     if (x11_display) {
 142         VADisplay va_display = vaGetDisplay(x11_display);
 143         if (va_display)
 144             g_object_set(GST_VAAPI_DISPLAY(display),
 145                          "display", va_display,
 146                          NULL);
 147     }
 148
 149     priv->display = x11_display;
 150 }
 151
 152 GstVaapiDisplay *
 153 gst_vaapi_display_x11_new(Display *x11_display)
 154 {
 155     return g_object_new(GST_VAAPI_TYPE_DISPLAY_X11,
 156                         "x11-display", x11_display,
 157                         NULL);
 158 }