Bump version numbers for 3.13
[maemo-rb.git] / apps / abrepeat.h
blob49557a34b78c0594d72f9083632da8fcd4f43516
1 /***************************************************************************
2 * __________ __ ___.
3 * Open \______ \ ____ ____ | | _\_ |__ _______ ___
4 * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
5 * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
6 * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
7 * \/ \/ \/ \/ \/
8 * $Id$
10 * Copyright (C) 2005 Ray Lambert
12 * This program is free software; you can redistribute it and/or
13 * modify it under the terms of the GNU General Public License
14 * as published by the Free Software Foundation; either version 2
15 * of the License, or (at your option) any later version.
17 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
18 * KIND, either express or implied.
20 ****************************************************************************/
21 #ifndef _ABREPEAT_H_
22 #define _ABREPEAT_H_
24 #ifdef AB_REPEAT_ENABLE
25 #include <stdbool.h>
26 #include "audio.h"
27 #include "kernel.h" /* needed for HZ */
29 #define AB_MARKER_NONE 0
31 #include "settings.h"
33 void ab_repeat_init(void);
34 bool ab_before_A_marker(unsigned int song_position);
35 bool ab_after_A_marker(unsigned int song_position);
36 void ab_jump_to_A_marker(void);
37 void ab_reset_markers(void);
38 void ab_set_A_marker(unsigned int song_position);
39 void ab_set_B_marker(unsigned int song_position);
40 #if (CONFIG_CODEC == SWCODEC)
41 void ab_end_of_track_report(void);
42 #endif
43 #ifdef HAVE_LCD_BITMAP
44 #include "screen_access.h"
45 void ab_draw_markers(struct screen * screen, int capacity,
46 int x, int y, int w, int h);
47 #endif
49 /* These functions really need to be inlined for speed */
50 extern unsigned int ab_A_marker;
51 extern unsigned int ab_B_marker;
53 static inline bool ab_repeat_mode_enabled(void)
55 return global_settings.repeat_mode == REPEAT_AB;
58 static inline bool ab_reached_B_marker(unsigned int song_position)
60 /* following is the size of the window in which we'll detect that the B marker
61 was hit; it must be larger than the frequency (in milliseconds) at which this
62 function is called otherwise detection of the B marker will be unreliable */
63 #if (CONFIG_CODEC == SWCODEC)
64 /* On swcodec, the worst case seems to be 9600kHz with 1024 samples between
65 * calls, meaning ~9 calls per second, look within 1/5 of a second */
66 #define B_MARKER_DETECT_WINDOW 200
67 #else
68 /* we assume that this function will be called on each system tick and derive
69 the window size from this with a generous margin of error (note: the number
70 of ticks per second is given by HZ) */
71 #define B_MARKER_DETECT_WINDOW ((1000/HZ)*10)
72 #endif
73 if (ab_B_marker != AB_MARKER_NONE)
75 if ( (song_position >= ab_B_marker)
76 && (song_position <= (ab_B_marker+B_MARKER_DETECT_WINDOW)) )
77 return true;
79 return false;
82 #if (CONFIG_CODEC == SWCODEC)
83 static inline void ab_position_report(unsigned long position)
85 if (ab_repeat_mode_enabled())
87 if ( !(audio_status() & AUDIO_STATUS_PAUSE) &&
88 ab_reached_B_marker(position) )
90 ab_jump_to_A_marker();
94 #endif
96 #endif
98 #endif /* _ABREPEAT_H_ */