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

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Revision 159 - (hide annotations) (download) (as text)
Tue Jun 29 21:11:50 2004 UTC (19 years, 9 months ago) by capela
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* Unconsolidaded MIDI input related channel commands are back:
  SET CHANNEL MIDI_INPUT_DEVICE <chan> <midi-device>
  SET CHANNEL MIDI_INPUT_PORT <chan> <midi-port>
  SET CHANNEL MIDI_INPUT_CHANNEL <chan> <midi-chan>

* Still useful for compability with legacy clients, an almost
  deprecated command gets re-implemented:
  SET CHANNEL MIDI_INPUT_TYPE <chan> <midi-driver>

* Optional parameter list on MIDI input device creation fixed,
  but not quite fully effective yet:
  CREATE MIDI_INPUT_DEVICE <midi-driver> [<key>=<val>...]

1 schoenebeck 35 /***************************************************************************
2     * *
3     * LinuxSampler - modular, streaming capable sampler *
4     * *
5 schoenebeck 56 * Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck *
6 schoenebeck 35 * *
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 <netinet/in.h>
30     #include <netinet/tcp.h>
31     #include <arpa/inet.h>
32     #include <netdb.h>
33    
34 schoenebeck 53 #include "lscp.h"
35 schoenebeck 35 #include "lscpparser.h"
36 schoenebeck 53 #include "../Sampler.h"
37     #include "../common/Thread.h"
38 schoenebeck 35
39     /// TCP Port on which the server should listen for connection requests.
40     #define LSCP_PORT 8888
41    
42 schoenebeck 53 using namespace LinuxSampler;
43    
44 schoenebeck 35 /// Handle for a client connection (FIXME: doesn't work for more than one network connections of course, thus has to be included to the yyparse() parameters instead).
45     extern int hSession;
46    
47     // External references to the main scanner and parser functions
48     extern int yyparse(void* YYPARSE_PARAM);
49     extern int yylex_init(yyscan_t* scanner);
50     extern int yylex_destroy(yyscan_t yyscanner);
51    
52     /**
53     * Network server for the LinuxSampler Control Protocol (LSCP).
54     */
55     class LSCPServer : public Thread {
56     public:
57 schoenebeck 53 LSCPServer(Sampler* pSampler);
58 schoenebeck 35
59     // Methods called by the parser
60 schoenebeck 123 String DestroyAudioOutputDevice(uint DeviceIndex);
61 senkov 155 String DestroyMidiInputDevice(uint DeviceIndex);
62 capela 137 String LoadInstrument(String Filename, uint uiInstrument, uint uiSamplerChannel, bool bBackground = false);
63 schoenebeck 53 String LoadEngine(String EngineName, uint uiSamplerChannel);
64 schoenebeck 35 String GetChannels();
65     String AddChannel();
66 schoenebeck 53 String RemoveChannel(uint uiSamplerChannel);
67 schoenebeck 35 String GetAvailableEngines();
68     String GetEngineInfo(String EngineName);
69 schoenebeck 53 String GetChannelInfo(uint uiSamplerChannel);
70     String GetVoiceCount(uint uiSamplerChannel);
71     String GetStreamCount(uint uiSamplerChannel);
72     String GetBufferFill(fill_response_t ResponseType, uint uiSamplerChannel);
73 schoenebeck 123 String GetAvailableAudioOutputDrivers();
74 senkov 155 String GetAvailableMidiInputDrivers();
75 schoenebeck 123 String GetAudioOutputDriverInfo(String Driver);
76 senkov 155 String GetMidiInputDriverInfo(String Driver);
77 schoenebeck 123 #ifdef __GNUC__
78     typedef std::map<String,String> StringMap; // nasty workaround for a GCC bug (see GCC bug #15980, #57)
79     String GetAudioOutputDriverParameterInfo(String Driver, String Parameter, std::map<String,String> DependencyList = StringMap());
80 senkov 155 String GetMidiInputDriverParameterInfo(String Driver, String Parameter, std::map<String,String> DependencyList = StringMap());
81 senkov 140 String CreateAudioOutputDevice(String Driver, std::map<String,String> Parameters = StringMap());
82 senkov 155 String CreateMidiInputDevice(String Driver, std::map<String,String> Parameters = StringMap());
83 schoenebeck 123 #else
84     String GetAudioOutputDriverParameterInfo(String Driver, String Parameter, std::map<String,String> DependencyList = std::map<String,String>());
85 senkov 155 String GetMidiInputDriverParameterInfo(String Driver, String Parameter, std::map<String,String> DependencyList = std::map<String,String>());
86 senkov 140 String CreateAudioOutputDevice(String Driver, std::map<String,String> Parameters = std::map<String,String>());
87 senkov 155 String CreateMidiInputDevice(String Driver, std::map<String,String> Parameters = std::map<String,String>());
88 schoenebeck 123 #endif // __GNUC__
89     String GetAudioOutputDeviceCount();
90 senkov 155 String GetMidiInputDeviceCount();
91 schoenebeck 123 String GetAudioOutputDevices();
92 senkov 155 String GetMidiInputDevices();
93 schoenebeck 123 String GetAudioOutputDeviceInfo(uint DeviceIndex);
94 senkov 155 String GetMidiInputDeviceInfo(uint DeviceIndex);
95     String GetMidiInputPortInfo(uint DeviceIndex, uint PortIndex);
96 schoenebeck 123 String GetAudioOutputChannelInfo(uint DeviceId, uint ChannelId);
97     String GetAudioOutputChannelParameterInfo(uint DeviceId, uint ChannelId, String ParameterName);
98     String SetAudioOutputChannelParameter(uint DeviceId, uint ChannelId, String ParamKey, String ParamVal);
99     String SetAudioOutputDeviceParameter(uint DeviceIndex, String ParamKey, String ParamVal);
100 senkov 155 String SetMidiInputDeviceParameter(uint DeviceIndex, String ParamKey, String ParamVal);
101 capela 159 String SetMidiInputPortParameter(uint DeviceIndex, uint PortIndex, String ParamKey, String ParamVal);
102 schoenebeck 123 String SetAudioOutputChannel(uint ChannelAudioOutputChannel, uint AudioOutputDeviceInputChannel, uint uiSamplerChannel);
103 capela 159 String SetAudioOutputDevice(uint AudioDeviceId, uint SamplerChannel);
104 capela 143 String SetAudioOutputType(String AudioOutputDriver, uint uiSamplerChannel);
105 capela 159 String SetMIDIInputPort(uint MIDIPort, uint uiSamplerChannel);
106     String SetMIDIInputChannel(uint MIDIChannel, uint uiSamplerChannel);
107     String SetMIDIInputDevice(uint MIDIDeviceId, uint uiSamplerChannel);
108 schoenebeck 123 String SetMIDIInputType(String MidiInputDriver, uint uiSamplerChannel);
109 capela 159 String SetMIDIInput(uint MIDIDeviceId, uint MIDIPort, uint MIDIChannel, uint uiSamplerChannel);
110 schoenebeck 53 String SetVolume(double Volume, uint uiSamplerChannel);
111     String ResetChannel(uint uiSamplerChannel);
112 senkov 135 String SubscribeNotification(event_t Event);
113     String UnsubscribeNotification(event_t Event);
114 schoenebeck 35 void AnswerClient(String ReturnMessage);
115     protected:
116 schoenebeck 53 int hSocket;
117     sockaddr_in SocketAddress;
118     Sampler* pSampler;
119 schoenebeck 35
120     int Main(); ///< Implementation of virtual method from class Thread
121     private:
122 capela 143
123 schoenebeck 35 /**
124 capela 143 * Find a created audio output device index.
125     */
126     int GetAudioOutputDeviceIndex (AudioOutputDevice *pDevice);
127 senkov 155
128     /**
129     * Find a created midi input device index.
130     */
131     int GetMidiInputDeviceIndex (MidiInputDevice *pDevice);
132 capela 143
133     /**
134 schoenebeck 35 * Converts a result_t structure into a valid LSCP answer message.
135     */
136     inline String ConvertResult(result_t result) {
137     switch (result.type) {
138     case result_type_success: {
139     return "OK\r\n";
140     }
141     case result_type_warning: {
142     std::stringstream ss;
143     ss << "WRN:" << result.code << ":" << result.message << "\r\n";
144     return ss.str();
145     }
146     case result_type_error: {
147     std::stringstream ss;
148     ss << "ERR:" << result.code << ":" << result.message << "\r\n";
149     return ss.str();
150     }
151     }
152     }
153    
154 schoenebeck 53 template<class T> inline String ToString(T o) {
155 schoenebeck 35 std::stringstream ss;
156 schoenebeck 53 ss << o;
157 schoenebeck 35 return ss.str();
158     }
159     };
160    
161 capela 133
162     /**
163     * Instrument loader thread for the LinuxSampler Control Protocol (LSCP).
164     */
165     class LSCPLoadInstrument : public Thread {
166    
167     public:
168     LSCPLoadInstrument(Engine* pEngine, String Filename, uint uiInstrument);
169    
170     protected:
171     // Instance variables.
172     Engine* pEngine;
173     String Filename;
174     uint uiInstrument;
175    
176     // Implementation of virtual method from class Thread.
177     int Main();
178     };
179    
180 schoenebeck 35 #endif // __LSCPSERVER_H_

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