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1 /*
2  * GStreamer
3  * Copyright (C) 2013 Matthew Waters <ystreet00@gmail.com>
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_FRAMEBUFFER_H__
22 #define __GST_GL_FRAMEBUFFER_H__
23 
24 #include <gst/gl/gstgl_fwd.h>
25 
26 G_BEGIN_DECLS
27 
28 GST_GL_API
29 GType gst_gl_framebuffer_get_type (void);
30 
31 #define GST_TYPE_GL_FRAMEBUFFER             (gst_gl_framebuffer_get_type())
32 #define GST_GL_FRAMEBUFFER(obj)             (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_GL_FRAMEBUFFER,GstGLFramebuffer))
33 #define GST_GL_FRAMEBUFFER_CLASS(klass)     (G_TYPE_CHECK_CLASS_CAST((klass), GST_TYPE_GL_FRAMEBUFFER,GstGLFramebufferClass))
34 #define GST_IS_GL_FRAMEBUFFER(obj)          (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_GL_FRAMEBUFFER))
35 #define GST_IS_GL_FRAMEBUFFER_CLASS(klass)  (G_TYPE_CHECK_CLASS_TYPE((klass), GST_TYPE_GL_FRAMEBUFFER))
36 #define GST_GL_FRAMEBUFFER_CAST(obj)        ((GstGLFramebuffer*)(obj))
37 
38 typedef struct _GstGLFramebufferPrivate GstGLFramebufferPrivate;
39 
40 /**
41  * GstGLFramebufferFunc:
42  * @stuff: user data
43  *
44  * callback definition for operating through a #GstGLFramebuffer object
45  */
46 typedef gboolean (*GstGLFramebufferFunc) (gpointer stuff);
47 
48 /**
49  * GstGLFramebuffer:
50  *
51  * Opaque #GstGLFramebuffer struct
52  */
53 struct _GstGLFramebuffer
54 {
55   /*< private >*/
56   GstObject             object;
57 
58   GstGLContext *context;
59 
60   guint fbo_id;
61   GArray *attachments;
62 
63   gpointer          _padding[GST_PADDING];
64 
65   GstGLFramebufferPrivate  *priv;
66 };
67 
68 /**
69  * GstGLFramebufferClass:
70  *
71  * Opaque #GstGLFramebufferClass struct
72  */
73 struct _GstGLFramebufferClass
74 {
75   /*< private >*/
76   GstObjectClass object_class;
77 
78   gpointer          _padding[GST_PADDING];
79 };
80 
81 GST_GL_API
82 GstGLFramebuffer *      gst_gl_framebuffer_new                      (GstGLContext *context);
83 GST_GL_API
84 GstGLFramebuffer *      gst_gl_framebuffer_new_with_default_depth   (GstGLContext *context,
85                                                                      guint width,
86                                                                      guint height);
87 
88 GST_GL_API
89 guint                   gst_gl_framebuffer_get_id                   (GstGLFramebuffer * fb);
90 
91 GST_GL_API
92 void                    gst_gl_framebuffer_attach                   (GstGLFramebuffer * fb,
93                                                                      guint attachment_point,
94                                                                      GstGLBaseMemory * mem);
95 GST_GL_API
96 void                    gst_gl_framebuffer_bind                     (GstGLFramebuffer * fb);
97 GST_GL_API
98 void                    gst_gl_context_clear_framebuffer            (GstGLContext * context);
99 
100 GST_GL_API
101 void                    gst_gl_framebuffer_get_effective_dimensions (GstGLFramebuffer * fb,
102                                                                      guint * width,
103                                                                      guint * height);
104 
105 GST_GL_API
106 gboolean                gst_gl_context_check_framebuffer_status     (GstGLContext * context,
107                                                                      guint fbo_target);
108 
109 GST_GL_API
110 gboolean                gst_gl_framebuffer_draw_to_texture          (GstGLFramebuffer * fb,
111                                                                      GstGLMemory * mem,
112                                                                      GstGLFramebufferFunc func,
113                                                                      gpointer user_data);
114 
115 G_DEFINE_AUTOPTR_CLEANUP_FUNC(GstGLFramebuffer, gst_object_unref)
116 
117 G_END_DECLS
118 
119 #endif
120