我创建了一个独立的应用程序,它使用NPAPI在gtk + UI上运行已编译的flash(.swf)。当我的视频运行时,有一个小屏幕(可能是1秒或2秒)。这有点烦人,我想知道我是否可以做些什么来摆脱它...通过Xlib例如(本机)。可能吗?我想是的,但我对这些东西很新,只运行了我的第一个应用程序(“hello world”)。我很确定它的水平非常低,并且需要相当多的时间来做同样的事情。如有必要,我可以提供代码。
1)在gtk +?
中可能导致白屏延迟(加载闪存之前)的原因2)在本机Xlib中实现窗口以渲染闪存有多难?例如,设置NPWindow ......
Gtk ++(看起来像这样)
static NPWindow *
npwindow_construct (GtkWidget *widget) {
NPWindow *npwindow;
NPSetWindowCallbackStruct *ws_info = NULL;
GdkWindow *parent_win = widget->window;
GtkWidget *socketWidget = gtk_socket_new();
gtk_widget_set_parent_window(socketWidget, parent_win);
gtk_widget_set_uposition(socketWidget, xPosition, yPosition);
g_signal_connect(socketWidget, "plug_removed", G_CALLBACK(plug_removed_cb), NULL);
g_signal_connect(socketWidget, "unrealize", G_CALLBACK(socket_unrealize_cb), NULL);
g_signal_connect(socketWidget, "destroy", G_CALLBACK(gtk_widget_destroyed), &socketWidget);
gpointer user_data = NULL;
gdk_window_get_user_data(parent_win, &user_data);
GtkContainer *container = GTK_CONTAINER(user_data);
gtk_container_add(container, socketWidget);
gtk_widget_realize(socketWidget);
GtkAllocation new_allocation;
new_allocation.x = 0;
new_allocation.y = 0;
new_allocation.width = WINDOW_XSIZE;
new_allocation.height = WINDOW_YSIZE;
gtk_widget_size_allocate(socketWidget, &new_allocation);
gtk_widget_show(socketWidget);
gdk_flush();
GdkNativeWindow ww = gtk_socket_get_id(GTK_SOCKET(socketWidget));
GdkWindow *w = gdk_window_lookup(ww);
npwindow = malloc (sizeof (NPWindow));
npwindow->window = (void*)(unsigned long)ww;
npwindow->x = 0;
npwindow->y = 0;
npwindow->width = WINDOW_XSIZE;
npwindow->height = WINDOW_YSIZE;
ws_info = malloc(sizeof (NPSetWindowCallbackStruct));
ws_info->type = NP_SETWINDOW;
ws_info->display = GDK_WINDOW_XDISPLAY(w);
ws_info->colormap = GDK_COLORMAP_XCOLORMAP(gdk_drawable_get_colormap(w));
GdkVisual* gdkVisual = gdk_drawable_get_visual(w);
ws_info->visual = GDK_VISUAL_XVISUAL(gdkVisual);
ws_info->depth = gdkVisual->depth;
npwindow->ws_info = ws_info;
npwindow->type = NPWindowTypeWindow;
return npwindow;
}
3)Xlib与Xt有什么区别?
感谢任何建议或解决方案。
谢谢。编辑:我尝试在我的gtk组件中嵌入Xlib。因此,在我的主 GdkWindow ( widget-> window )中创建一个简单的窗口( XCreateSimpleWindow )。我有点迷失在如何做到这一点......因为,gtk_socket_new()创建了一个进程,使gtk组件能够从我的npapi插件中获取(启用为“feed”)数据。那么,我如何填充(编码)NPWindow?
GtkWidget *socketWidget = gtk_drawing_area_new ();
gtk_drawing_area_size (socketWidget , WINDOW_XSIZE, WINDOW_YSIZE);
gtk_widget_realize (socketWidget);
XCreateSimpleWindow (GDK_WINDOW_XDISPLAY (parent_win), GDK_WINDOW_XWINDOW (parent_win), 0, 0, WINDOW_XSIZE, WINDOW_YSIZE, 0, 0);