source: roaraudio/roard/waveform.c @ 3215:13678c1774be

Last change on this file since 3215:13678c1774be was 3215:13678c1774be, checked in by phi, 14 years ago

reset mixer stream in case a mixer comes up

File size: 2.0 KB
Line 
1//waveform.c:
2
3/*
4 *      Copyright (C) Philipp 'ph3-der-loewe' Schafft - 2009
5 *
6 *  This file is part of roard a part of RoarAudio,
7 *  a cross-platform sound system for both, home and professional use.
8 *  See README for details.
9 *
10 *  This file is free software; you can redistribute it and/or modify
11 *  it under the terms of the GNU General Public License version 3
12 *  as published by the Free Software Foundation.
13 *
14 *  RoarAudio is distributed in the hope that it will be useful,
15 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
16 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
17 *  GNU General Public License for more details.
18 *
19 *  You should have received a copy of the GNU General Public License
20 *  along with this software; see the file COPYING.  If not, write to
21 *  the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
22 *
23 */
24
25#include "roard.h"
26
27int waveform_init  (void) {
28 struct roar_stream_server * ss;
29 struct roar_stream        *  s;
30 int                          i;
31
32 if ( (g_waveform_mixer.stream = add_mixer(ROAR_SUBSYS_WAVEFORM, _MIXER_NAME("Waveform"), &ss)) == -1 )
33  return -1;
34
35 g_waveform_mixer.ss = ss;
36
37 s = ROAR_STREAM(ss);
38
39 memcpy(&(s->info), g_sa, sizeof(struct roar_audio_info));
40
41 ss->state = ROAR_STREAMSTATE_OLD;
42
43 for (i = 0; i < ROAR_STREAMS_MAX; i++) {
44  if ( g_streams[i] != NULL ) {
45   if ( streams_get_subsys(i) == ROAR_SUBSYS_WAVEFORM ) {
46    streams_set_mixer_stream(i, g_waveform_mixer.stream);
47   }
48  }
49 }
50
51 return 0;
52}
53
54int waveform_free  (void) {
55 return 0;
56}
57
58int waveform_update_mixer (void) {
59 if ( streams_get_flag(g_waveform_mixer.stream, ROAR_FLAG_MUTE) == 1 ) {
60  memset(g_output_buffer, 0, (g_sa->bits*ROAR_OUTPUT_BUFFER_SAMPLES*g_sa->channels)/8);
61  return 0;
62 }
63
64 if ( !need_vol_change(ROAR_STREAM(g_waveform_mixer.ss)->info.channels, &(g_waveform_mixer.ss->mixer)) )
65  return 0;
66
67 roar_amp_pcm(g_output_buffer, g_sa->bits, g_output_buffer,
68              ROAR_OUTPUT_BUFFER_SAMPLES*g_sa->channels, g_sa->channels,
69              &(g_waveform_mixer.ss->mixer));
70
71 return 0;
72}
73
74//ll
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