.Fix du probl�me de detection de la profondeur en 16 bits sous XFree 4

J'esp�re que �a marche encore avec XFree 3.3

plugins/x11/vout_x11.c

@@ -412,15 +412,20 @@ static int X11OpenDisplay( vout_thread_t *p_vout, char *psz_display, Window root
          * formats. */
         p_xpixmap_format = XListPixmapFormats( p_vout->p_sys->p_display, &i_count );
 
-	/* FIXME: under XFree4.0, we can get some strange values. Check this */
+	
+        /* Under XFree4.0, the list contains pixmap formats available through 
+         * all video depths ; so we have to check against current depth. */
         p_vout->i_bytes_per_pixel = 0;
-        for( ; i_count--; p_xpixmap_format++ )
+        for( ; i_count-- ; p_xpixmap_format++ )
+        {
+            if( p_xpixmap_format->depth == p_vout->i_screen_depth )
             {
                 if( p_xpixmap_format->bits_per_pixel / 8 > p_vout->i_bytes_per_pixel )
                 {
                     p_vout->i_bytes_per_pixel = p_xpixmap_format->bits_per_pixel / 8;
                 }
             }
+        }
         break;
     }
     p_vout->p_sys->p_visual = p_xvisual->visual;