/[svn]/linuxsampler/trunk/src/mididriver/MidiInputDeviceAlsa.h
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Contents of /linuxsampler/trunk/src/mididriver/MidiInputDeviceAlsa.h

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Revision 153 - (show annotations) (download) (as text)
Mon Jun 28 04:21:11 2004 UTC (15 years, 7 months ago) by senkov
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* Updated MIDI infrastructure similar to what was previously
done with the AUDIO
* Implemented Alsa driver using new infrastructure
* TODO: MacOS drivers!

1 /***************************************************************************
2 * *
3 * LinuxSampler - modular, streaming capable sampler *
4 * *
5 * Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck *
6 * *
7 * This program is free software; you can redistribute it and/or modify *
8 * it under the terms of the GNU General Public License as published by *
9 * the Free Software Foundation; either version 2 of the License, or *
10 * (at your option) any later version. *
11 * *
12 * This program is distributed in the hope that it will be useful, *
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
15 * GNU General Public License for more details. *
16 * *
17 * You should have received a copy of the GNU General Public License *
18 * along with this program; if not, write to the Free Software *
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, *
20 * MA 02111-1307 USA *
21 ***************************************************************************/
22
23 #ifndef __LS_MIDIINPUTDEVICEALSA_H__
24 #define __LS_MIDIINPUTDEVICEALSA_H__
25
26 #include <alsa/asoundlib.h>
27
28 #include "../common/global.h"
29 #include "../common/Thread.h"
30 #include "../common/RingBuffer.h"
31 #include "MidiInputDevice.h"
32
33 namespace LinuxSampler {
34
35 /** ALSA MIDI input driver
36 *
37 * Implements MIDI input for the Advanced Linux Sound Architecture
38 * (ALSA).
39 */
40 class MidiInputDeviceAlsa : public MidiInputDevice, public Thread {
41 public:
42 MidiInputDeviceAlsa(std::map<String,String> Parameters);
43 ~MidiInputDeviceAlsa();
44
45 // derived abstract methods from class 'MidiInputDevice'
46 void Listen();
47 void StopListen();
48 String Driver() { return "Alsa"; };
49
50 static String Description();
51 static String Version();
52
53 class MidiInputPortAlsa : public MidiInputPort {
54 public:
55 void ConnectToAlsaMidiSource(const char* MidiSource);
56
57 class ParameterAlsaSeqBindings : public DeviceCreationParameterString {
58 public:
59 ParameterAlsaSeqBindings(MidiInputPortAlsa* pPort) { this->pPort = pPort; InitWithDefault();}
60 virtual String Description() { return "Bindings to other Alsa sequencer clients"; }
61 virtual bool Fix() { return false; }
62 virtual bool Mandatory() { return false; }
63 virtual std::map<String,DeviceCreationParameter*> DependsAsParameters() { return std::map<String,DeviceCreationParameter*>(); }
64 virtual optional<String> Default(std::map<String,String> Parameters) { return ""; }
65 virtual std::vector<String> PossibilitiesAsString(std::map<String,String> Parameters) { return std::vector<String>(); } //TODO
66 virtual void OnSetValue(String s) throw (LinuxSamplerException) { pPort->ConnectToAlsaMidiSource(s.c_str()); }
67 protected:
68 MidiInputPortAlsa* pPort;
69 };
70
71 protected:
72 MidiInputPortAlsa(MidiInputDeviceAlsa* pDevice, int portNumber);
73 ~MidiInputPortAlsa();
74 friend class MidiInputDeviceAlsa;
75 private:
76 MidiInputDeviceAlsa* pDevice;
77 };
78
79 MidiInputPortAlsa* CreateMidiPort( void );
80
81 protected:
82 std::map<String,DeviceCreationParameter*> CreateParameters(std::map<String,String> Parameters);
83 int Main(); ///< Implementation of virtual method from class Thread
84 private:
85 static std::map<String,DeviceCreationParameter*> CreateAvailableParameters();
86 snd_seq_t* hAlsaSeq;
87 int hAlsaSeqClient; ///< Alsa Sequencer client ID
88 };
89 }
90
91 #endif // __LS_MIDIINPUTDEVICEALSA_H__

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