1/*
2 * GStreamer
3 * Copyright (C) 2015 Lubosz Sarnecki <lubosz.sarnecki@collabora.co.uk>
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 __GST_GL_OVERLAY_COMPOSITOR_H__
22#define __GST_GL_OVERLAY_COMPOSITOR_H__
23
24#include <gst/video/video.h>
25#include <gst/gl/gstgl_fwd.h>
26
27#define GST_TYPE_GL_OVERLAY_COMPOSITOR (gst_gl_overlay_compositor_get_type())
28#define GST_GL_OVERLAY_COMPOSITOR(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_GL_OVERLAY_COMPOSITOR,GstGLOverlayCompositor))
29#define GST_GL_OVERLAY_COMPOSITOR_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_GL_OVERLAY_COMPOSITOR,GstGLOverlayCompositorClass))
30#define GST_IS_GL_OVERLAY_COMPOSITOR(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_GL_OVERLAY_COMPOSITOR))
31#define GST_IS_GL_OVERLAY_COMPOSITOR_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_GL_OVERLAY_COMPOSITOR))
32#define GST_GL_OVERLAY_COMPOSITOR_CAST(obj) ((GstGLOverlayCompositor*)(obj))
33
34G_BEGIN_DECLS
35
36GST_GL_API
37GType gst_gl_overlay_compositor_get_type (void);
38
39/**
40 * GstGLOverlayCompositor:
41 *
42 * Opaque #GstGLOverlayCompositor object
43 */
44struct _GstGLOverlayCompositor
45{
46 /*< private >*/
47 GstObject parent;
48
49 GstGLContext *context;
50
51 guint last_window_width;
52 guint last_window_height;
53
54 GList * overlays;
55
56 GstGLShader *shader;
57 gint position_attrib;
58 gint texcoord_attrib;
59
60 gpointer _padding[GST_PADDING];
61};
62
63/**
64 * GstGLOverlayCompositorClass:
65 *
66 */
67struct _GstGLOverlayCompositorClass
68{
69 GstObjectClass object_class;
70
71 /*< private >*/
72 gpointer _padding[GST_PADDING];
73};
74
75GST_GL_API
76GstGLOverlayCompositor *gst_gl_overlay_compositor_new (GstGLContext * context);
77
78GST_GL_API
79void gst_gl_overlay_compositor_free_overlays (GstGLOverlayCompositor * compositor);
80
81GST_GL_API
82void gst_gl_overlay_compositor_upload_overlays (GstGLOverlayCompositor * compositor,
83 GstBuffer * buf);
84
85GST_GL_API
86void gst_gl_overlay_compositor_draw_overlays (GstGLOverlayCompositor * compositor);
87
88GST_GL_API
89GstCaps * gst_gl_overlay_compositor_add_caps(GstCaps * caps);
90
91G_END_DECLS
92#endif /* __GST_GL_OVERLAY_COMPOSITOR_H__ */
93

source code of include/gstreamer-1.0/gst/gl/gstgloverlaycompositor.h