Add gst_vaapi_display_{sync,flush}() helpers.

[platform/upstream/gstreamer-vaapi.git] / gst-libs / gst / vaapi / gstvaapidisplay_x11.c

diff --git a/gst-libs/gst/vaapi/gstvaapidisplay_x11.c b/gst-libs/gst/vaapi/gstvaapidisplay_x11.c
index bfd6589..705051b 100644 (file)
--- a/gst-libs/gst/vaapi/gstvaapidisplay_x11.c
+++ b/gst-libs/gst/vaapi/gstvaapidisplay_x11.c
@@ -19,8 +19,8 @@
  */
 
 /**
- * SECTION:gst-vaapi-display-x11
- * @short_description:
+ * SECTION:gstvaapidisplay_x11
+ * @short_description: VA/X11 display abstraction
  */
 
 #include "config.h"
@@ -40,15 +40,17 @@ G_DEFINE_TYPE(GstVaapiDisplayX11,
                                  GstVaapiDisplayX11Private))
 
 struct _GstVaapiDisplayX11Private {
-    gboolean    create_display;
     gchar      *display_name;
     Display    *x11_display;
-    VADisplay  *va_display;
+    int         x11_screen;
+    guint       create_display  : 1;
+    guint       synchronous     : 1;
 };
 
 enum {
     PROP_0,
 
+    PROP_SYNCHRONOUS,
     PROP_DISPLAY_NAME,
     PROP_X11_DISPLAY
 };
@@ -73,6 +75,18 @@ set_display_name(GstVaapiDisplayX11 *display, const gchar *display_name)
 }
 
 static void
+set_synchronous(GstVaapiDisplayX11 *display, gboolean synchronous)
+{
+    GstVaapiDisplayX11Private * const priv = display->priv;
+
+    if (priv->synchronous != synchronous) {
+        priv->synchronous = synchronous;
+        if (priv->x11_display)
+            XSynchronize(priv->x11_display, synchronous);
+    }
+}
+
+static void
 gst_vaapi_display_x11_set_property(
     GObject      *object,
     guint         prop_id,
@@ -83,6 +97,9 @@ gst_vaapi_display_x11_set_property(
     GstVaapiDisplayX11 * const display = GST_VAAPI_DISPLAY_X11(object);
 
     switch (prop_id) {
+    case PROP_SYNCHRONOUS:
+        set_synchronous(display, g_value_get_boolean(value));
+        break;
     case PROP_DISPLAY_NAME:
         set_display_name(display, g_value_get_string(value));
         break;
@@ -106,6 +123,9 @@ gst_vaapi_display_x11_get_property(
     GstVaapiDisplayX11 * const display = GST_VAAPI_DISPLAY_X11(object);
 
     switch (prop_id) {
+    case PROP_SYNCHRONOUS:
+        g_value_set_boolean(value, display->priv->synchronous);
+        break;
     case PROP_DISPLAY_NAME:
         g_value_set_string(value, display->priv->display_name);
         break;
@@ -147,8 +167,11 @@ gst_vaapi_display_x11_open_display(GstVaapiDisplay *display)
     if (!priv->x11_display)
         return FALSE;
 
-    priv->va_display = vaGetDisplay(priv->x11_display);
-    return priv->va_display != NULL;
+    if (priv->synchronous)
+        XSynchronize(priv->x11_display, True);
+
+    priv->x11_screen = DefaultScreen(priv->x11_display);
+    return TRUE;
 }
 
 static void
@@ -167,14 +190,72 @@ gst_vaapi_display_x11_close_display(GstVaapiDisplay *display)
         g_free(priv->display_name);
         priv->display_name = NULL;
     }
+}
+
+static void
+gst_vaapi_display_x11_sync(GstVaapiDisplay *display)
+{
+    GstVaapiDisplayX11Private * const priv =
+        GST_VAAPI_DISPLAY_X11(display)->priv;
 
-    priv->va_display = NULL;
+    if (priv->x11_display)
+        XSync(priv->x11_display, False);
+}
+
+static void
+gst_vaapi_display_x11_flush(GstVaapiDisplay *display)
+{
+    GstVaapiDisplayX11Private * const priv =
+        GST_VAAPI_DISPLAY_X11(display)->priv;
+
+    if (priv->x11_display)
+        XFlush(priv->x11_display);
 }
 
 static VADisplay
 gst_vaapi_display_x11_get_va_display(GstVaapiDisplay *display)
 {
-    return GST_VAAPI_DISPLAY_X11(display)->priv->va_display;
+    return vaGetDisplay(GST_VAAPI_DISPLAY_XDISPLAY(display));
+}
+
+static void
+gst_vaapi_display_x11_get_size(
+    GstVaapiDisplay *display,
+    guint           *pwidth,
+    guint           *pheight
+)
+{
+    GstVaapiDisplayX11Private * const priv =
+        GST_VAAPI_DISPLAY_X11(display)->priv;
+
+    if (!priv->x11_display)
+        return;
+
+    if (pwidth)
+        *pwidth = DisplayWidth(priv->x11_display, priv->x11_screen);
+
+    if (pheight)
+        *pheight = DisplayHeight(priv->x11_display, priv->x11_screen);
+}
+
+static void
+gst_vaapi_display_x11_get_size_mm(
+    GstVaapiDisplay *display,
+    guint           *pwidth,
+    guint           *pheight
+)
+{
+    GstVaapiDisplayX11Private * const priv =
+        GST_VAAPI_DISPLAY_X11(display)->priv;
+
+    if (!priv->x11_display)
+        return;
+
+    if (pwidth)
+        *pwidth = DisplayWidthMM(priv->x11_display, priv->x11_screen);
+
+    if (pheight)
+        *pheight = DisplayHeightMM(priv->x11_display, priv->x11_screen);
 }
 
 static void
@@ -192,7 +273,26 @@ gst_vaapi_display_x11_class_init(GstVaapiDisplayX11Class *klass)
 
     dpy_class->open_display     = gst_vaapi_display_x11_open_display;
     dpy_class->close_display    = gst_vaapi_display_x11_close_display;
+    dpy_class->sync             = gst_vaapi_display_x11_sync;
+    dpy_class->flush            = gst_vaapi_display_x11_flush;
     dpy_class->get_display      = gst_vaapi_display_x11_get_va_display;
+    dpy_class->get_size         = gst_vaapi_display_x11_get_size;
+    dpy_class->get_size_mm      = gst_vaapi_display_x11_get_size_mm;
+
+    /**
+     * GstVaapiDisplayX11:synchronous:
+     *
+     * When enabled, runs the X display in synchronous mode. Note that
+     * this is used only for debugging.
+     */
+    g_object_class_install_property
+        (object_class,
+         PROP_SYNCHRONOUS,
+         g_param_spec_boolean("synchronous",
+                              "Synchronous mode",
+                              "Toggles X display synchronous mode",
+                              FALSE,
+                              G_PARAM_READWRITE));
 
     /**
      * GstVaapiDisplayX11:x11-display:
@@ -231,6 +331,7 @@ gst_vaapi_display_x11_init(GstVaapiDisplayX11 *display)
     display->priv        = priv;
     priv->create_display = TRUE;
     priv->x11_display    = NULL;
+    priv->x11_screen     = 0;
     priv->display_name   = NULL;
 }