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

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Revision 137 - (hide annotations) (download) (as text)
Sun Jun 20 16:49:47 2004 UTC (19 years, 9 months ago) by capela
File MIME type: text/x-c++hdr
File size: 6788 byte(s)
* Changed LSCPServer::LoadInstrument() signature, which adds a new
  boolean argument (bool bBackground) where the loading mode maybe
  selected, whether modal (the default), or modeless (in background).

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 CreateAudioOutputDevice(String Driver, std::map<String,String> Parameters);
61     String DestroyAudioOutputDevice(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     String GetAudioOutputDriverInfo(String Driver);
75     #ifdef __GNUC__
76     typedef std::map<String,String> StringMap; // nasty workaround for a GCC bug (see GCC bug #15980, #57)
77     String GetAudioOutputDriverParameterInfo(String Driver, String Parameter, std::map<String,String> DependencyList = StringMap());
78     #else
79     String GetAudioOutputDriverParameterInfo(String Driver, String Parameter, std::map<String,String> DependencyList = std::map<String,String>());
80     #endif // __GNUC__
81     String GetAudioOutputDeviceCount();
82     String GetAudioOutputDevices();
83     String GetAudioOutputDeviceInfo(uint DeviceIndex);
84     String GetAudioOutputChannelInfo(uint DeviceId, uint ChannelId);
85     String GetAudioOutputChannelParameterInfo(uint DeviceId, uint ChannelId, String ParameterName);
86     String SetAudioOutputChannelParameter(uint DeviceId, uint ChannelId, String ParamKey, String ParamVal);
87     String SetAudioOutputDeviceParameter(uint DeviceIndex, String ParamKey, String ParamVal);
88     String SetAudioOutputChannel(uint ChannelAudioOutputChannel, uint AudioOutputDeviceInputChannel, uint uiSamplerChannel);
89     String SetMIDIInputType(String MidiInputDriver, uint uiSamplerChannel);
90 schoenebeck 53 String SetMIDIInputPort(String MIDIInputPort, uint uiSamplerchannel);
91     String SetMIDIInputChannel(uint MIDIChannel, uint uiSamplerChannel);
92 schoenebeck 123 String SetAudioOutputDevice(uint AudioDeviceId, uint SamplerChannel);
93 schoenebeck 53 String SetVolume(double Volume, uint uiSamplerChannel);
94     String ResetChannel(uint uiSamplerChannel);
95 senkov 135 String SubscribeNotification(event_t Event);
96     String UnsubscribeNotification(event_t Event);
97 schoenebeck 35 void AnswerClient(String ReturnMessage);
98     protected:
99 schoenebeck 53 int hSocket;
100     sockaddr_in SocketAddress;
101     Sampler* pSampler;
102 schoenebeck 35
103     int Main(); ///< Implementation of virtual method from class Thread
104     private:
105     /**
106     * Converts a result_t structure into a valid LSCP answer message.
107     */
108     inline String ConvertResult(result_t result) {
109     switch (result.type) {
110     case result_type_success: {
111     return "OK\r\n";
112     }
113     case result_type_warning: {
114     std::stringstream ss;
115     ss << "WRN:" << result.code << ":" << result.message << "\r\n";
116     return ss.str();
117     }
118     case result_type_error: {
119     std::stringstream ss;
120     ss << "ERR:" << result.code << ":" << result.message << "\r\n";
121     return ss.str();
122     }
123     }
124     }
125    
126 schoenebeck 53 template<class T> inline String ToString(T o) {
127 schoenebeck 35 std::stringstream ss;
128 schoenebeck 53 ss << o;
129 schoenebeck 35 return ss.str();
130     }
131     };
132    
133 capela 133
134     /**
135     * Instrument loader thread for the LinuxSampler Control Protocol (LSCP).
136     */
137     class LSCPLoadInstrument : public Thread {
138    
139     public:
140     LSCPLoadInstrument(Engine* pEngine, String Filename, uint uiInstrument);
141    
142     protected:
143     // Instance variables.
144     Engine* pEngine;
145     String Filename;
146     uint uiInstrument;
147    
148     // Implementation of virtual method from class Thread.
149     int Main();
150     };
151    
152 schoenebeck 35 #endif // __LSCPSERVER_H_

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