1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
|
/*
* KMix -- KDE's full featured mini mixer
*
*
* Copyright (C) 2004 Christian Esken <esken@kde.org>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this program; if not, write to the Free
* Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02111-1307, USA.
*/
#include "qwidget.h"
#include "qstring.h"
//#include <kdebug.h>
#include <klocale.h>
#include "mixdevice.h"
#include "mixer.h"
#include "mixertoolbox.h"
/***********************************************************************************
Attention:
This MixerToolBox is linked to the KMix Main Program, the KMix Applet and kmixctrl.
As we do not want to link in more than neccesary to kmixctrl, you are asked
not to put any GUI classes in here.
In the case where it is unavoidable, please put them in KMixToolBox.
***********************************************************************************/
/**
* Scan for Mixers in the System. This is the method that implicitely fills the
* list of Mixer's, which is accesible via the static Mixer::mixer() method.
* @par mixers The list where to add the found Mixers. This parameter is superfluous
* nowadays, as it is now really trivial to get it - just call the static
* Mixer::mixer() method.
* @par multiDriverMode Whether the Mixer scan should try more all backendends.
* 'true' means to scan all backends. 'false' means: After scanning the
* current backend the next backend is only scanned if no Mixers were found yet.
*/
void MixerToolBox::initMixer(QPtrList<Mixer> &mixers, bool multiDriverMode, QString& ref_hwInfoString)
{
//kdDebug(67100) << "IN MixerToolBox::initMixer()"<<endl;
// Find all mixers and initalize them
QMap<QString,int> mixerNums;
int drvNum = Mixer::numDrivers();
int driverWithMixer = -1;
bool multipleDriversActive = false;
QString driverInfo = "";
QString driverInfoUsed = "";
for( int drv1=0; drv1<drvNum; drv1++ )
{
QString driverName = Mixer::driverName(drv1);
if ( driverInfo.length() > 0 )
driverInfo += " + ";
driverInfo += driverName;
}
/* Run a loop over all drivers. The loop will terminate after the first driver which
has mixers. And here is the reason:
- If you run ALSA with ALSA-OSS-Emulation enabled, mixers will show up twice: once
as native ALSA mixer, once as OSS mixer (emulated by ALSA). This is bad and WILL
confuse users. So it is a design decision that we can compile in multiple drivers
but we can run only one driver.
- For special usage scenarios, people will still want to run both drivers at the
same time. We allow them to hack their Config-File, where they can enable a
multi-driver mode.
- Another remark: For KMix3.0 or so, we should allow multiple-driver, for allowing
addition of special-use drivers, e.g. an Jack-Mixer-Backend, or a CD-Rom volume Backend.
*/
bool autodetectionFinished = false;
for( int drv=0; drv<drvNum; drv++ )
{
QString driverName = Mixer::driverName(drv);
if ( autodetectionFinished ) {
// sane exit from loop
break;
}
bool drvInfoAppended = false;
// The "19" below is just a "silly" number:
// (Old: The loop will break as soon as an error is detected - e.g. on 3rd loop when 2 soundcards are installed)
// New: We don't try be that clever anymore. We now blindly scan 20 cards, as the clever
// approach doesn't work for the one or other user.
int devNumMax = 19;
for( int dev=0; dev<=devNumMax; dev++ )
{
Mixer *mixer = new Mixer( drv, dev );
if ( mixer->isValid() ) {
mixer->open();
mixers.append( mixer );
// Count mixer nums for every mixer name to identify mixers with equal names.
// This is for creating persistent (reusable) primary keys, which can safely
// be referenced (especially for config file access, so it is meant to be persistent!).
mixerNums[mixer->mixerName()]++;
// Create a useful PK
/* As we use "::" and ":" as separators, the parts %1,%2 and %3 may not
* contain it.
* %1, the driver name is from the KMix backends, it does not contain colons.
* %2, the mixer name, is typically coming from an OS driver. It could contain colons.
* %3, the mixer number, is a number: it does not contain colons.
*/
QString mixerName = mixer->mixerName();
mixerName.replace(":","_");
QString primaryKeyOfMixer = QString("%1::%2:%3")
.arg(driverName)
.arg(mixerName)
.arg(mixerNums[mixer->mixerName()]);
// The following 3 replaces are for not messing up the config file
primaryKeyOfMixer.replace("]","_");
primaryKeyOfMixer.replace("[","_"); // not strictly neccesary, but lets play safe
primaryKeyOfMixer.replace(" ","_");
primaryKeyOfMixer.replace("=","_");
mixer->setID(primaryKeyOfMixer);
} // valid
else
{
delete mixer;
mixer = 0;
} // invalid
/* Lets decide if we the autoprobing shall continue: */
if ( multiDriverMode ) {
// trivial case: In multiDriverMode, we scan ALL 20 devs of ALL drivers
// so we have to do "nothing" in this case
} // multiDriver
else {
// In No-multiDriver-mode we only need to check after we reached devNumMax
if ( dev == devNumMax ) {
if ( Mixer::mixers().count() != 0 ) {
// highest device number of driver and a Mixer => finished
autodetectionFinished = true;
}
}
} // !multiDriver
// append driverName (used drivers)
if ( !drvInfoAppended )
{
drvInfoAppended = true;
QString driverName = Mixer::driverName(drv);
if ( drv!= 0 && mixers.count() > 0) {
driverInfoUsed += " + ";
}
driverInfoUsed += driverName;
}
// Check whether there are mixers in different drivers, so that the user can be warned
if (!multipleDriversActive)
{
if ( driverWithMixer == -1 )
{
// Aha, this is the very first detected device
driverWithMixer = drv;
}
else
{
if ( driverWithMixer != drv )
{
// Got him: There are mixers in different drivers
multipleDriversActive = true;
}
}
} // !multipleDriversActive
} // loop over sound card devices of current driver
} // loop over soundcard drivers
if ( Mixer::masterCard() == 0 ) {
// We have no master card yet. This actually only happens when there was
// not one defined in the kmixrc.
// So lets just set the first card as master card.
if ( Mixer::mixers().count() > 0 ) {
Mixer::setMasterCard( Mixer::mixers().first()->id());
}
}
ref_hwInfoString = i18n("Sound drivers supported:");
ref_hwInfoString.append(" ").append( driverInfo ).append( "\n").append(i18n("Sound drivers used:")) .append(" ").append(driverInfoUsed);
if ( multipleDriversActive )
{
// this will only be possible by hacking the config-file, as it will not be officially supported
ref_hwInfoString += "\nExperimental multiple-Driver mode activated";
}
kdDebug(67100) << ref_hwInfoString << endl << "Total number of detected Mixers: " << Mixer::mixers().count() << endl;
//kdDebug(67100) << "OUT MixerToolBox::initMixer()"<<endl;
}
/*
* Clean up and free all ressources of all found Mixers, which were found in the initMixer() call
*/
void MixerToolBox::deinitMixer()
{
//kdDebug(67100) << "IN MixerToolBox::deinitMixer()"<<endl;
Mixer *mixer;
while ( (mixer=Mixer::mixers().first()) != 0)
{
//kdDebug(67100) << "MixerToolBox::deinitMixer() Remove Mixer" << endl;
mixer->close();
Mixer::mixers().remove(mixer);
delete mixer;
}
// kdDebug(67100) << "OUT MixerToolBox::deinitMixer()"<<endl;
}
|
