/[svn]/linuxsampler/trunk/src/network/lscpserver.h
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Contents of /linuxsampler/trunk/src/network/lscpserver.h

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Revision 225 - (show annotations) (download) (as text)
Sun Aug 22 14:46:47 2004 UTC (14 years, 2 months ago) by schoenebeck
File MIME type: text/x-c++hdr
File size: 8509 byte(s)
* set default volume to 1.0 in Gigasampler engine (was 0.0)
* implemented "SET CHANNEL AUDIO_OUTPUT_CHANNEL" LSCP command
* fixed "GET ENGINE INFO" LSCP command
* fixed "GET CHANNEL INFO" LSCP command
* src/network/lscp.y: fixed 'stringval' rule (returned string with formal
  apostrophes), fixed 'dotnum' rule (ignored position after decimal point)

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 __LSCPSERVER_H_
24 #define __LSCPSERVER_H_
25
26 #include <unistd.h>
27 #include <sys/types.h>
28 #include <sys/socket.h>
29 #include <sys/select.h>
30 #include <sys/time.h>
31 #include <netinet/in.h>
32 #include <netinet/tcp.h>
33 #include <arpa/inet.h>
34 #include <netdb.h>
35
36 #include <list>
37
38 #include "lscp.h"
39 #include "lscpparser.h"
40 #include "lscp.h"
41 #include "lscpevent.h"
42 #include "../Sampler.h"
43 #include "../common/Thread.h"
44 #include "../common/Mutex.h"
45 #include "../common/Condition.h"
46
47 /// TCP Port on which the server should listen for connection requests.
48 #define LSCP_PORT 8888
49
50 using namespace LinuxSampler;
51
52 // External references to the main scanner and parser functions
53 extern int yyparse(void* YYPARSE_PARAM);
54 extern void restart(yyparse_param_t* pparam, int& yychar);
55
56 /**
57 * Network server for the LinuxSampler Control Protocol (LSCP).
58 */
59 class LSCPServer : public Thread {
60 public:
61 LSCPServer(Sampler* pSampler);
62 int WaitUntilInitialized(long TimeoutSeconds = 0L, long TimeoutNanoSeconds = 0L);
63
64 // Methods called by the parser
65 String DestroyAudioOutputDevice(uint DeviceIndex);
66 String DestroyMidiInputDevice(uint DeviceIndex);
67 String LoadInstrument(String Filename, uint uiInstrument, uint uiSamplerChannel, bool bBackground = false);
68 String LoadEngine(String EngineName, uint uiSamplerChannel);
69 String GetChannels();
70 String ListChannels();
71 String AddChannel();
72 String RemoveChannel(uint uiSamplerChannel);
73 String GetAvailableEngines();
74 String GetEngineInfo(String EngineName);
75 String GetChannelInfo(uint uiSamplerChannel);
76 String GetVoiceCount(uint uiSamplerChannel);
77 String GetStreamCount(uint uiSamplerChannel);
78 String GetBufferFill(fill_response_t ResponseType, uint uiSamplerChannel);
79 String GetAvailableAudioOutputDrivers();
80 String GetAvailableMidiInputDrivers();
81 String GetAudioOutputDriverInfo(String Driver);
82 String GetMidiInputDriverInfo(String Driver);
83 #ifdef __GNUC__
84 typedef std::map<String,String> StringMap; // nasty workaround for a GCC bug (see GCC bug #15980, #57)
85 String GetAudioOutputDriverParameterInfo(String Driver, String Parameter, std::map<String,String> DependencyList = StringMap());
86 String GetMidiInputDriverParameterInfo(String Driver, String Parameter, std::map<String,String> DependencyList = StringMap());
87 String CreateAudioOutputDevice(String Driver, std::map<String,String> Parameters = StringMap());
88 String CreateMidiInputDevice(String Driver, std::map<String,String> Parameters = StringMap());
89 #else
90 String GetAudioOutputDriverParameterInfo(String Driver, String Parameter, std::map<String,String> DependencyList = std::map<String,String>());
91 String GetMidiInputDriverParameterInfo(String Driver, String Parameter, std::map<String,String> DependencyList = std::map<String,String>());
92 String CreateAudioOutputDevice(String Driver, std::map<String,String> Parameters = std::map<String,String>());
93 String CreateMidiInputDevice(String Driver, std::map<String,String> Parameters = std::map<String,String>());
94 #endif // __GNUC__
95 String GetAudioOutputDeviceCount();
96 String GetMidiInputDeviceCount();
97 String GetAudioOutputDevices();
98 String GetMidiInputDevices();
99 String GetAudioOutputDeviceInfo(uint DeviceIndex);
100 String GetMidiInputDeviceInfo(uint DeviceIndex);
101 String GetMidiInputPortInfo(uint DeviceIndex, uint PortIndex);
102 String GetMidiInputPortParameterInfo(uint DeviceId, uint PortId, String ParameterName);
103 String GetAudioOutputChannelInfo(uint DeviceId, uint ChannelId);
104 String GetAudioOutputChannelParameterInfo(uint DeviceId, uint ChannelId, String ParameterName);
105 String SetAudioOutputChannelParameter(uint DeviceId, uint ChannelId, String ParamKey, String ParamVal);
106 String SetAudioOutputDeviceParameter(uint DeviceIndex, String ParamKey, String ParamVal);
107 String SetMidiInputDeviceParameter(uint DeviceIndex, String ParamKey, String ParamVal);
108 String SetMidiInputPortParameter(uint DeviceIndex, uint PortIndex, String ParamKey, String ParamVal);
109 String SetAudioOutputChannel(uint ChannelAudioOutputChannel, uint AudioOutputDeviceInputChannel, uint uiSamplerChannel);
110 String SetAudioOutputDevice(uint AudioDeviceId, uint SamplerChannel);
111 String SetAudioOutputType(String AudioOutputDriver, uint uiSamplerChannel);
112 String SetMIDIInputPort(uint MIDIPort, uint uiSamplerChannel);
113 String SetMIDIInputChannel(uint MIDIChannel, uint uiSamplerChannel);
114 String SetMIDIInputDevice(uint MIDIDeviceId, uint uiSamplerChannel);
115 String SetMIDIInputType(String MidiInputDriver, uint uiSamplerChannel);
116 String SetMIDIInput(uint MIDIDeviceId, uint MIDIPort, uint MIDIChannel, uint uiSamplerChannel);
117 String SetVolume(double dVolume, uint uiSamplerChannel);
118 String ResetChannel(uint uiSamplerChannel);
119 String ResetSampler();
120 String SubscribeNotification(LSCPEvent::event_t);
121 String UnsubscribeNotification(LSCPEvent::event_t);
122 String SetEcho(yyparse_param_t* pSession, double boolean_value);
123 void AnswerClient(String ReturnMessage);
124
125 static int currentSocket;
126 static std::map<int,String> bufferedCommands;
127
128 static void SendLSCPNotify( LSCPEvent Event );
129
130 protected:
131 int hSocket;
132 sockaddr_in SocketAddress;
133 Sampler* pSampler;
134 Condition Initialized;
135
136 int Main(); ///< Implementation of virtual method from class Thread
137
138 private:
139
140 /**
141 * Find a created audio output device index.
142 */
143 int GetAudioOutputDeviceIndex (AudioOutputDevice *pDevice);
144
145 /**
146 * Find a created midi input device index.
147 */
148 int GetMidiInputDeviceIndex (MidiInputDevice *pDevice);
149
150 static std::map<int,String> bufferedNotifies;
151 static Mutex NotifyMutex;
152 static Mutex NotifyBufferMutex;
153 static bool GetLSCPCommand( std::vector<yyparse_param_t>::iterator iter );
154 static void CloseConnection( std::vector<yyparse_param_t>::iterator iter );
155 static std::vector<yyparse_param_t> Sessions;
156 static Mutex SubscriptionMutex;
157 static std::map< LSCPEvent::event_t, std::list<int> > eventSubscriptions;
158 static fd_set fdSet;
159 };
160
161 /**
162 * Instrument loader thread for the LinuxSampler Control Protocol (LSCP).
163 */
164 class LSCPLoadInstrument : public Thread {
165
166 public:
167 LSCPLoadInstrument(Engine* pEngine, String Filename, uint uiInstrument);
168
169 protected:
170 // Instance variables.
171 Engine* pEngine;
172 String Filename;
173 uint uiInstrument;
174
175 // Implementation of virtual method from class Thread.
176 int Main();
177 };
178
179 #endif // __LSCPSERVER_H_

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