1 /*
2  * GStreamer
3  * Copyright (C) 2010 Thiago Santos <thiago.sousa.santos@collabora.co.uk>
4  *
5  * Permission is hereby granted, free of charge, to any person obtaining a
6  * copy of this software and associated documentation files (the "Software"),
7  * to deal in the Software without restriction, including without limitation
8  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
9  * and/or sell copies of the Software, and to permit persons to whom the
10  * Software is furnished to do so, subject to the following conditions:
11  *
12  * The above copyright notice and this permission notice shall be included in
13  * all copies or substantial portions of the Software.
14  *
15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
18  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
21  * DEALINGS IN THE SOFTWARE.
22  *
23  * Alternatively, the contents of this file may be used under the
24  * GNU Lesser General Public License Version 2.1 (the "LGPL"), in
25  * which case the following provisions apply instead of the ones
26  * mentioned above:
27  *
28  * This library is free software; you can redistribute it and/or
29  * modify it under the terms of the GNU Library General Public
30  * License as published by the Free Software Foundation; either
31  * version 2 of the License, or (at your option) any later version.
32  *
33  * This library is distributed in the hope that it will be useful,
34  * but WITHOUT ANY WARRANTY; without even the implied warranty of
35  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
36  * Library General Public License for more details.
37  *
38  * You should have received a copy of the GNU Library General Public
39  * License along with this library; if not, write to the
40  * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
41  * Boston, MA 02110-1301, USA.
42  */
43 
44 #ifndef __GST_CIRCLE_GEOMETRIC_TRANSFORM_H__
45 #define __GST_CIRCLE_GEOMETRIC_TRANSFORM_H__
46 
47 #include <gst/gst.h>
48 #include "gstgeometrictransform.h"
49 
50 G_BEGIN_DECLS
51 
52 /* #defines don't like whitespacey bits */
53 #define GST_TYPE_CIRCLE_GEOMETRIC_TRANSFORM \
54   (gst_circle_geometric_transform_get_type())
55 #define GST_CIRCLE_GEOMETRIC_TRANSFORM(obj) \
56   (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_CIRCLE_GEOMETRIC_TRANSFORM,GstCircleGeometricTransform))
57 #define GST_CIRCLE_GEOMETRIC_TRANSFORM_CAST(obj) \
58   ((GstCircleGeometricTransform *)(obj))
59 #define GST_CIRCLE_GEOMETRIC_TRANSFORM_CLASS(klass) \
60   (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_CIRCLE_GEOMETRIC_TRANSFORM,GstCircleGeometricTransformClass))
61 #define GST_IS_CIRCLE_GEOMETRIC_TRANSFORM(obj) \
62   (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_CIRCLE_GEOMETRIC_TRANSFORM))
63 #define GST_IS_CIRCLE_GEOMETRIC_TRANSFORM_CLASS(klass) \
64   (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_CIRCLE_GEOMETRIC_TRANSFORM))
65 
66 typedef struct _GstCircleGeometricTransform      GstCircleGeometricTransform;
67 typedef struct _GstCircleGeometricTransformClass GstCircleGeometricTransformClass;
68 
69 struct _GstCircleGeometricTransform
70 {
71   GstGeometricTransform element;
72 
73   gdouble x_center;
74   gdouble y_center;
75   gdouble radius;
76 
77   gdouble precalc_x_center;
78   gdouble precalc_y_center;
79   gdouble precalc_radius;
80   gdouble precalc_radius2;
81 };
82 
83 struct _GstCircleGeometricTransformClass
84 {
85   GstGeometricTransformClass parent_class;
86 };
87 
88 GType gst_circle_geometric_transform_get_type (void);
89 
90 gboolean gst_circle_geometric_transform_plugin_init (GstPlugin * plugin);
91 
92 G_END_DECLS
93 
94 #endif /* __GST_CIRCLE_GEOMETRIC_TRANSFORM_H__ */
95