1 /*
2  * GStreamer
3  * Copyright (C) 2016 Freescale Semiconductor, Inc. All rights reserved.
4  *
5  * This library is free software; you can redistribute it and/or
6  * modify it under the terms of the GNU Library General Public
7  * License as published by the Free Software Foundation; either
8  * version 2 of the License, or (at your option) any later version.
9  *
10  * This library is distributed in the hope that it will be useful,
11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
13  * Library General Public License for more details.
14  *
15  * You should have received a copy of the GNU Library General Public
16  * License along with this library; if not, write to the
17  * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
18  * Boston, MA 02110-1301, USA.
19  */
20 
21 #ifndef __QT_WINDOW_H__
22 #define __QT_WINDOW_H__
23 
24 #include <gst/gst.h>
25 #include <gst/gl/gl.h>
26 
27 #include "gstqtgl.h"
28 #include <QtQuick/QQuickWindow>
29 #include <QtGui/QOpenGLContext>
30 #include <QtGui/QOpenGLFunctions>
31 
32 typedef struct _QtGLWindowPrivate QtGLWindowPrivate;
33 
34 class InitQtGLContext;
35 
36 class QtGLWindow : public QQuickWindow, protected QOpenGLFunctions
37 {
38     Q_OBJECT
39 public:
40     QtGLWindow (QWindow * parent = NULL, QQuickWindow *source = NULL);
41     ~QtGLWindow ();
42     bool getGeometry (int * width, int * height);
43 
44     /* private for C interface ... */
45     QtGLWindowPrivate *priv;
46 
47 private Q_SLOTS:
48     void beforeRendering ();
49     void afterRendering ();
50     void onSceneGraphInitialized ();
51     void onSceneGraphInvalidated ();
52     void aboutToQuit();
53 
54 private:
55     friend class InitQtGLContext;
56     QQuickWindow * source;
57     QScopedPointer<QOpenGLFramebufferObject> fbo;
58 };
59 
60 extern "C"
61 {
62 gboolean        qt_window_set_buffer (QtGLWindow * qt_window, GstBuffer * buffer);
63 gboolean        qt_window_set_caps (QtGLWindow * qt_window, GstCaps * caps);
64 GstGLContext *  qt_window_get_qt_context (QtGLWindow * qt_window);
65 GstGLDisplay *  qt_window_get_display (QtGLWindow * qt_window);
66 gboolean        qt_window_is_scenegraph_initialized (QtGLWindow * qt_window);
67 void            qt_window_use_default_fbo (QtGLWindow * qt_window, gboolean useDefaultFbo);
68 }
69 
70 #endif /* __QT_WINDOW_H__ */
71