mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-11-27 04:01:08 +00:00
gl/window: add a dummy window class
Effective for the case where we have a platform that does not require a native window. We require a mainloop to run the GL commands which is currently operated by GstGLWindow.
This commit is contained in:
Matthew Waters
Tim-Philipp Müller
parent
d55eb1e859
commit
1af7847fdc
1 changed files with 189 additions and 3 deletions
|
|
@ -86,6 +86,23 @@ struct _GstGLWindowPrivate
|
|||
|
||||
static void gst_gl_window_finalize (GObject * object);
|
||||
|
||||
typedef struct _GstGLDummyWindow
|
||||
{
|
||||
GstGLWindow parent;
|
||||
|
||||
guintptr handle;
|
||||
|
||||
GMainContext *main_context;
|
||||
GMainLoop *loop;
|
||||
} GstGLDummyWindow;
|
||||
|
||||
typedef struct _GstGLDummyWindowCass
|
||||
{
|
||||
GstGLWindowClass parent;
|
||||
} GstGLDummyWindowClass;
|
||||
|
||||
GstGLDummyWindow *gst_gl_dummy_window_new (void);
|
||||
|
||||
GQuark
|
||||
gst_gl_window_error_quark (void)
|
||||
{
|
||||
|
|
@ -163,10 +180,10 @@ gst_gl_window_new (GstGLDisplay * display)
|
|||
#endif
|
||||
if (!window) {
|
||||
/* subclass returned a NULL window */
|
||||
GST_WARNING ("Could not create window. user specified %s",
|
||||
user_choice ? user_choice : "(null)");
|
||||
GST_WARNING ("Could not create window. user specified %s, creating dummy"
|
||||
" window", user_choice ? user_choice : "(null)");
|
||||
|
||||
return NULL;
|
||||
window = GST_GL_WINDOW (gst_gl_dummy_window_new ());
|
||||
}
|
||||
|
||||
window->display = gst_object_ref (display);
|
||||
|
|
@ -536,3 +553,172 @@ gst_gl_window_get_context (GstGLWindow * window)
|
|||
|
||||
return (GstGLContext *) g_weak_ref_get (&window->context_ref);
|
||||
}
|
||||
|
||||
GType gst_gl_dummy_window_get_type (void);
|
||||
|
||||
G_DEFINE_TYPE (GstGLDummyWindow, gst_gl_dummy_window, GST_GL_TYPE_WINDOW);
|
||||
|
||||
static gboolean
|
||||
gst_gl_dummy_window_open (GstGLWindow * window, GError ** error)
|
||||
{
|
||||
GstGLDummyWindow *dummy = (GstGLDummyWindow *) window;
|
||||
|
||||
dummy->main_context = g_main_context_new ();
|
||||
dummy->loop = g_main_loop_new (dummy->main_context, FALSE);
|
||||
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
static void
|
||||
gst_gl_dummy_window_close (GstGLWindow * window)
|
||||
{
|
||||
GstGLDummyWindow *dummy = (GstGLDummyWindow *) window;
|
||||
|
||||
g_main_loop_unref (dummy->loop);
|
||||
g_main_context_unref (dummy->main_context);
|
||||
}
|
||||
|
||||
static void
|
||||
gst_gl_dummy_window_quit (GstGLWindow * window)
|
||||
{
|
||||
GstGLDummyWindow *dummy = (GstGLDummyWindow *) window;
|
||||
|
||||
g_main_loop_quit (dummy->loop);
|
||||
}
|
||||
|
||||
static void
|
||||
gst_gl_dummy_window_run (GstGLWindow * window)
|
||||
{
|
||||
GstGLDummyWindow *dummy = (GstGLDummyWindow *) window;
|
||||
|
||||
g_main_loop_run (dummy->loop);
|
||||
}
|
||||
|
||||
typedef struct _GstGLMessage
|
||||
{
|
||||
GstGLWindowCB callback;
|
||||
gpointer data;
|
||||
GDestroyNotify destroy;
|
||||
} GstGLMessage;
|
||||
|
||||
static gboolean
|
||||
_run_message (GstGLMessage * message)
|
||||
{
|
||||
if (message->callback)
|
||||
message->callback (message->data);
|
||||
|
||||
if (message->destroy)
|
||||
message->destroy (message->data);
|
||||
|
||||
g_slice_free (GstGLMessage, message);
|
||||
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
static void
|
||||
gst_gl_dummy_window_send_message_async (GstGLWindow * window,
|
||||
GstGLWindowCB callback, gpointer data, GDestroyNotify destroy)
|
||||
{
|
||||
GstGLDummyWindow *dummy;
|
||||
GstGLMessage *message;
|
||||
|
||||
dummy = (GstGLDummyWindow *) window;
|
||||
message = g_slice_new (GstGLMessage);
|
||||
|
||||
message->callback = callback;
|
||||
message->data = data;
|
||||
message->destroy = destroy;
|
||||
|
||||
g_main_context_invoke (dummy->main_context, (GSourceFunc) _run_message,
|
||||
message);
|
||||
}
|
||||
|
||||
static void
|
||||
gst_gl_dummy_window_set_window_handle (GstGLWindow * window, guintptr handle)
|
||||
{
|
||||
GstGLDummyWindow *dummy = (GstGLDummyWindow *) window;
|
||||
|
||||
dummy->handle = handle;
|
||||
}
|
||||
|
||||
static guintptr
|
||||
gst_gl_dummy_window_get_window_handle (GstGLWindow * window)
|
||||
{
|
||||
GstGLDummyWindow *dummy = (GstGLDummyWindow *) window;
|
||||
|
||||
return (guintptr) dummy->handle;
|
||||
}
|
||||
|
||||
struct draw
|
||||
{
|
||||
GstGLDummyWindow *window;
|
||||
guint width, height;
|
||||
};
|
||||
|
||||
static void
|
||||
draw_cb (gpointer data)
|
||||
{
|
||||
struct draw *draw_data = data;
|
||||
GstGLDummyWindow *dummy = draw_data->window;
|
||||
GstGLWindow *window = GST_GL_WINDOW (dummy);
|
||||
GstGLContext *context = gst_gl_window_get_context (window);
|
||||
GstGLContextClass *context_class = GST_GL_CONTEXT_GET_CLASS (context);
|
||||
|
||||
if (window->draw)
|
||||
window->draw (window->draw_data);
|
||||
|
||||
context_class->swap_buffers (context);
|
||||
|
||||
gst_object_unref (context);
|
||||
}
|
||||
|
||||
static void
|
||||
gst_gl_dummy_window_draw (GstGLWindow * window, guint width, guint height)
|
||||
{
|
||||
struct draw draw_data;
|
||||
|
||||
draw_data.window = (GstGLDummyWindow *) window;
|
||||
draw_data.width = width;
|
||||
draw_data.height = height;
|
||||
|
||||
gst_gl_window_send_message (window, (GstGLWindowCB) draw_cb, &draw_data);
|
||||
}
|
||||
|
||||
static guintptr
|
||||
gst_gl_dummy_window_get_display (GstGLWindow * window)
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void
|
||||
gst_gl_dummy_window_class_init (GstGLDummyWindowClass * klass)
|
||||
{
|
||||
GstGLWindowClass *window_class = (GstGLWindowClass *) klass;
|
||||
|
||||
window_class->get_display =
|
||||
GST_DEBUG_FUNCPTR (gst_gl_dummy_window_get_display);
|
||||
window_class->get_window_handle =
|
||||
GST_DEBUG_FUNCPTR (gst_gl_dummy_window_get_window_handle);
|
||||
window_class->set_window_handle =
|
||||
GST_DEBUG_FUNCPTR (gst_gl_dummy_window_set_window_handle);
|
||||
window_class->draw_unlocked = GST_DEBUG_FUNCPTR (gst_gl_dummy_window_draw);
|
||||
window_class->draw = GST_DEBUG_FUNCPTR (gst_gl_dummy_window_draw);
|
||||
window_class->run = GST_DEBUG_FUNCPTR (gst_gl_dummy_window_run);
|
||||
window_class->quit = GST_DEBUG_FUNCPTR (gst_gl_dummy_window_quit);
|
||||
window_class->send_message_async =
|
||||
GST_DEBUG_FUNCPTR (gst_gl_dummy_window_send_message_async);
|
||||
window_class->open = GST_DEBUG_FUNCPTR (gst_gl_dummy_window_open);
|
||||
window_class->close = GST_DEBUG_FUNCPTR (gst_gl_dummy_window_close);
|
||||
}
|
||||
|
||||
static void
|
||||
gst_gl_dummy_window_init (GstGLDummyWindow * dummy)
|
||||
{
|
||||
dummy->handle = 0;
|
||||
}
|
||||
|
||||
GstGLDummyWindow *
|
||||
gst_gl_dummy_window_new (void)
|
||||
{
|
||||
return g_object_new (gst_gl_dummy_window_get_type (), NULL);
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in a new issue