2 pcboot - bootable PC demo/game kernel
3 Copyright (C) 2018 John Tsiombikas <nuclear@member.fsf.org>
5 This program is free software: you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation, either version 3 of the License, or
8 (at your option) any later version.
10 This program 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
13 GNU General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with this program. If not, see <https://www.gnu.org/licenses/>.
23 void *(*get_buffer)(int *size);
24 void (*start)(int rate, int nchan);
28 void (*volume)(int vol);
31 static struct audrv drv;
33 static audio_callback_func cbfunc;
39 drv.get_buffer = sb_buffer;
42 drv.cont = sb_continue;
44 drv.volume = sb_volume;
48 printf("No supported audio device detected\n");
51 void audio_set_callback(audio_callback_func func, void *cls)
57 int audio_callback(void *buf, int sz)
62 return cbfunc(buf, sz, cbcls);
65 void audio_play(int rate, int nchan)
67 drv.start(rate, nchan);
70 void audio_pause(void)
75 void audio_resume(void)
85 void audio_volume(int vol)