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_finalize(GObject *object)
  49 {
  50     G_OBJECT_CLASS(gst_vaapi_display_x11_parent_class)->finalize(object);
  51 }
  52
  53 static void
  54 gst_vaapi_display_x11_set_property(GObject      *object,
  55                                    guint         prop_id,
  56                                    const GValue *value,
  57                                    GParamSpec   *pspec)
  58 {
  59     GstVaapiDisplayX11 * const display = GST_VAAPI_DISPLAY_X11(object);
  60
  61     switch (prop_id) {
  62     case PROP_X11_DISPLAY:
  63         display->priv->display = g_value_get_pointer(value);
  64         break;
  65     default:
  66         G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);
  67         break;
  68     }
  69 }
  70
  71 static void
  72 gst_vaapi_display_x11_get_property(GObject    *object,
  73                                    guint       prop_id,
  74                                    GValue     *value,
  75                                    GParamSpec *pspec)
  76 {
  77     GstVaapiDisplayX11 * const display = GST_VAAPI_DISPLAY_X11(object);
  78
  79     switch (prop_id) {
  80     case PROP_X11_DISPLAY:
  81         g_value_set_pointer(value, gst_vaapi_display_x11_get_display(display));
  82         break;
  83     default:
  84         G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);
  85         break;
  86     }
  87 }
  88
  89 static void
  90 gst_vaapi_display_x11_class_init(GstVaapiDisplayX11Class *klass)
  91 {
  92     GObjectClass * const object_class = G_OBJECT_CLASS(klass);
  93
  94     g_type_class_add_private(klass, sizeof(GstVaapiDisplayX11Private));
  95
  96     object_class->finalize     = gst_vaapi_display_x11_finalize;
  97     object_class->set_property = gst_vaapi_display_x11_set_property;
  98     object_class->get_property = gst_vaapi_display_x11_get_property;
  99
 100     g_object_class_install_property
 101         (object_class,
 102          PROP_X11_DISPLAY,
 103          g_param_spec_pointer("x11-display",
 104                               "X11 display",
 105                               "X11 display",
 106                               G_PARAM_READWRITE|G_PARAM_CONSTRUCT_ONLY));
 107 }
 108
 109 static void
 110 gst_vaapi_display_x11_init(GstVaapiDisplayX11 *display)
 111 {
 112     GstVaapiDisplayX11Private *priv = GST_VAAPI_DISPLAY_X11_GET_PRIVATE(display);
 113
 114     display->priv = priv;
 115     priv->display = NULL;
 116 }
 117
 118 Display *
 119 gst_vaapi_display_x11_get_display(GstVaapiDisplayX11 *display)
 120 {
 121     g_return_val_if_fail(GST_VAAPI_IS_DISPLAY_X11(display), NULL);
 122
 123     return display->priv->display;
 124 }
 125
 126 GstVaapiDisplay *
 127 gst_vaapi_display_x11_new(Display *x11_display)
 128 {
 129     g_return_val_if_fail(x11_display, NULL);
 130
 131     return g_object_new(GST_VAAPI_TYPE_DISPLAY_X11,
 132                         "x11-display", x11_display,
 133                         "display", vaGetDisplay(x11_display),
 134                         NULL);
 135 }