gstreamer/gst-libs/gst/gl/eagl/gstglios_utils.h
Matthew Waters c506adc950 gl/eagl: don't access UIkit objects on the main thread
This means we cannot access [view layer] or view.bounds from the OpenGL
thread.  This also means that we need to call the main thread when
setting the window handle.  However, we cannot perform that
synchronously as that may deadlock with the application performing the
set_window_handle() call.

We need to defer the actual update and run it asynchronously and wait
for the window handle update internally at each point it is needed.

Fixes: https://gitlab.freedesktop.org/gstreamer/gst-plugins-base/-/issues/372
Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-base/-/merge_requests/681>
2020-06-02 14:32:03 +10:00

45 lines
1.3 KiB
Objective-C

/*
* GStreamer
* Copyright (C) 2020 Matthew Waters <matthew@centricular.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifndef __GL_IOS_UTILS_H__
#define __GL_IOS_UTILS_H__
#include <gst/gst.h>
#include <UIKit/UIKit.h>
#include "gstglwindow_eagl.h"
G_BEGIN_DECLS
@interface GstGLUIView : UIView
- (void) setGstWindow:(GstGLWindowEagl *)window_eagl;
@end
typedef void (*GstGLWindowEaglFunc) (gpointer data);
G_GNUC_INTERNAL
void _gl_invoke_on_main (GstGLWindowEaglFunc func, gpointer data, GDestroyNotify notify);
G_GNUC_INTERNAL
gpointer gst_gl_window_eagl_get_layer (GstGLWindowEagl * window_eagl);
G_END_DECLS
#endif