tsiry-sandratraina.com
A modern Music Player Daemon based on Rockbox open source high quality audio player
libadwaita
audio
rust
zig
deno
mpris
rockbox
mpd
1/***************************************************************************
2 * __________ __ ___.
3 * Open \______ \ ____ ____ | | _\_ |__ _______ ___
4 * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
5 * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
6 * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
7 * \/ \/ \/ \/ \/
8 * $Id$
9 *
10 * Copyright (c) 2011 Michael Sevakis
11 *
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.
16 *
17 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
18 * KIND, either express or implied.
19 *
20 ****************************************************************************/
21#if defined(CPU_ARM)
22#include "arm/beep.c"
23#elif defined (CPU_COLDFIRE)
24#include "m68k/beep.c"
25#else /* Generic */
26
27/* Actually output samples into beep_buf */
28static FORCE_INLINE void beep_generate(int16_t *out, int count,
29 uint32_t *phase, uint32_t step,
30 int16_t amplitude)
31{
32 uint32_t ph = *phase;
33
34 do
35 {
36 int16_t amp = amplitude;
37
38 if (ph > UINT32_MAX / 2)
39 amp = -amp;
40
41 *out++ = amp;
42 *out++ = amp;
43
44 ph += step;
45 }
46 while (--count > 0);
47
48 *phase = ph;
49}
50
51#define BEEP_GENERIC
52#endif /* CPU_* */