source: roaraudio/roard/hwmixer_dstr.c @ 4372:602b5e406dd2

Last change on this file since 4372:602b5e406dd2 was 4372:602b5e406dd2, checked in by phi, 14 years ago

corrected handling of substreams

File size: 3.4 KB
Line 
1//hwmixer_dstr.c:
2
3/*
4 *      Copyright (C) Philipp 'ph3-der-loewe' Schafft - 2010
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, 51 Franklin Street, Fifth Floor,
22 *  Boston, MA 02110-1301, USA.
23 *
24 */
25
26#include "roard.h"
27
28//#define TEST_HWMIXER_SUBSTREAMS
29
30int hwmixer_dstr_open(struct hwmixer_stream * stream, char * drv, char * dev, int fh, char * basename, struct roar_keyval * subnames, size_t subnamelen) {
31 struct roar_vio_calls * vio = roar_mm_malloc(sizeof(struct roar_vio_calls));
32 struct roar_vio_defaults def;
33 struct roar_stream_server * ss;
34
35 if ( vio == NULL )
36  return -1;
37
38 if ( fh == -1 ) {
39  if ( dev == NULL ) {
40   roar_mm_free(vio);
41   return -1;
42  }
43
44  if ( roar_vio_dstr_init_defaults(&def, ROAR_VIO_DEF_TYPE_NONE, O_WRONLY|O_CREAT|O_TRUNC, 0644) == -1 ) {
45   roar_mm_free(vio);
46   return -1;
47  }
48
49  if ( roar_vio_open_dstr(vio, dev, &def, 1) == -1 ) {
50   roar_mm_free(vio);
51   return -1;
52  }
53 } else {
54  if ( roar_vio_open_fh(vio, fh) == -1 ) {
55   roar_mm_free(vio);
56   return -1;
57  }
58 }
59
60 stream->baseud = vio;
61
62 roar_vio_printf(vio, "No data yet.\n");
63 roar_vio_lseek(vio, 0, SEEK_SET);
64 roar_vio_sync(vio);
65
66 if (streams_get(stream->basestream, &ss) != -1) {
67  ROAR_STREAM(ss)->info.channels = 2;
68 } else {
69  ROAR_WARN("hwmixer_dstr_open(*): can not get object for basestream %i", stream->basestream);
70 }
71
72#ifdef TEST_HWMIXER_SUBSTREAMS
73 stream = hwmixer_substream_new(stream);
74 if ( stream == NULL ) {
75  ROAR_WARN("hwmixer_dstr_open(*): can not create substream");
76 } else {
77  if (streams_get(stream->stream, &ss) != -1) {
78   ROAR_STREAM(ss)->info.channels = 2;
79  } else {
80   ROAR_WARN("hwmixer_dstr_open(*): can not get object for stream %i", stream->stream);
81  }
82 }
83#endif
84
85 return 0;
86}
87
88int hwmixer_dstr_close(struct hwmixer_stream * stream) {
89 // are we a substream? if yes we do not clean up anything.
90 // streams_delete() will do all our work.
91 if ( stream->stream != stream->basestream )
92  return 0;
93
94 roar_vio_close(stream->baseud);
95 roar_mm_free(stream->baseud);
96 return 0;
97}
98
99int hwmixer_dstr_set_vol(struct hwmixer_stream * stream, int channels, int mode, struct roar_mixer_settings * settings) {
100 struct roar_vio_calls * vio = stream->baseud;
101 int i;
102
103 roar_vio_printf(vio, "[Stream %2i of basestream %2i]\n", stream->stream, stream->basestream);
104 roar_vio_printf(vio, "Channels: %2i\n", channels);
105 roar_vio_printf(vio, "Mode: %1i\n", mode);
106 roar_vio_printf(vio, "Scale: %5i\n", (int)settings->scale);
107 roar_vio_printf(vio, "RPG: %5i/%5i\n", (int)settings->rpg_mul, (int)settings->rpg_div);
108
109 for (i = 0; i < channels; i++) {
110  roar_vio_printf(vio, "Channel[%2i]: %5i\n", i, (int)settings->mixer[i]);
111 }
112
113 roar_vio_lseek(vio, 0, SEEK_SET);
114 roar_vio_sync(vio);
115 return 0;
116}
117
118//ll
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