1 /* GSequencer - Advanced GTK Sequencer
2  * Copyright (C) 2005-2020 Joël Krähemann
3  *
4  * This file is part of GSequencer.
5  *
6  * GSequencer is free software: you can redistribute it and/or modify
7  * it under the terms of the GNU General Public License as published by
8  * the Free Software Foundation, either version 3 of the License, or
9  * (at your option) any later version.
10  *
11  * GSequencer is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14  * GNU General Public License for more details.
15  *
16  * You should have received a copy of the GNU General Public License
17  * along with GSequencer.  If not, see <http://www.gnu.org/licenses/>.
18  */
19 
20 #ifndef __AGS_TRACK_H__
21 #define __AGS_TRACK_H__
22 
23 #include <glib.h>
24 #include <glib-object.h>
25 
26 #include <ags/libags.h>
27 
28 G_BEGIN_DECLS
29 
30 #define AGS_TYPE_TRACK                (ags_track_get_type())
31 #define AGS_TRACK(obj)                (G_TYPE_CHECK_INSTANCE_CAST((obj), AGS_TYPE_TRACK, AgsTrack))
32 #define AGS_TRACK_CLASS(class)        (G_TYPE_CHECK_CLASS_CAST((class), AGS_TYPE_TRACK, AgsTrackClass))
33 #define AGS_IS_TRACK(obj)             (G_TYPE_CHECK_INSTANCE_TYPE((obj), AGS_TYPE_TRACK))
34 #define AGS_IS_TRACK_CLASS(class)     (G_TYPE_CHECK_CLASS_TYPE((class), AGS_TYPE_TRACK))
35 #define AGS_TRACK_GET_CLASS(obj)      (G_TYPE_INSTANCE_GET_CLASS((obj), AGS_TYPE_TRACK, AgsTrackClass))
36 
37 #define AGS_TRACK_GET_OBJ_MUTEX(obj) (&(((AgsTrack *) obj)->obj_mutex))
38 
39 #define AGS_TRACK_DEFAULT_TICKS_PER_QUARTER_TRACK (16.0)
40 
41 typedef struct _AgsTrack AgsTrack;
42 typedef struct _AgsTrackClass AgsTrackClass;
43 
44 /**
45  * AgsTrackFlags:
46  * @AGS_TRACK_IS_SELECTED: is selected
47  *
48  * Enum values to control the behavior or indicate internal state of #AgsTrack by
49  * enable/disable as flags.
50  */
51 typedef enum{
52   AGS_TRACK_IS_SELECTED     = 1,
53 }AgsTrackFlags;
54 
55 struct _AgsTrack
56 {
57   GObject gobject;
58 
59   guint flags;
60 
61   GRecMutex obj_mutex;
62 
63   guint64 x;
64 
65   guchar *smf_buffer;
66   guint allocated_smf_buffer_length;
67   guint smf_buffer_length;
68 };
69 
70 struct _AgsTrackClass
71 {
72   GObjectClass gobject;
73 };
74 
75 GType ags_track_get_type();
76 
77 GRecMutex* ags_track_get_obj_mutex(AgsTrack *track);
78 
79 void ags_track_lock(AgsTrack *track);
80 void ags_track_unlock(AgsTrack *track);
81 
82 gboolean ags_track_test_flags(AgsTrack *track, guint flags);
83 void ags_track_set_flags(AgsTrack *track, guint flags);
84 void ags_track_unset_flags(AgsTrack *track, guint flags);
85 
86 gint ags_track_sort_func(gconstpointer a,
87 			 gconstpointer b);
88 
89 guint64 ags_track_get_x(AgsTrack *track);
90 void ags_track_set_x(AgsTrack *track, guint64 x);
91 
92 gpointer ags_track_get_smf_buffer(AgsTrack *track,
93 				  guint *smf_buffer_length);
94 
95 gpointer ags_track_alloc_smf_buffer(AgsTrack *track,
96 				    guint smf_buffer_length);
97 gpointer ags_track_realloc_smf_buffer(AgsTrack *track,
98 				      guint smf_buffer_length);
99 
100 AgsTrack* ags_track_duplicate(AgsTrack *track);
101 
102 AgsTrack* ags_track_new();
103 
104 G_END_DECLS
105 
106 #endif /*__AGS_TRACK_H__*/
107