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/*************************************************************************** |
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* * |
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* LinuxSampler - modular, streaming capable sampler * |
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* * |
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* Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck * |
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* * |
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* This program is free software; you can redistribute it and/or modify * |
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* it under the terms of the GNU General Public License as published by * |
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* the Free Software Foundation; either version 2 of the License, or * |
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* (at your option) any later version. * |
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* * |
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* This program is distributed in the hope that it will be useful, * |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of * |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * |
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* GNU General Public License for more details. * |
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* * |
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* You should have received a copy of the GNU General Public License * |
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* along with this program; if not, write to the Free Software * |
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, * |
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* MA 02111-1307 USA * |
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***************************************************************************/ |
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#ifndef __LSCPSERVER_H_ |
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#define __LSCPSERVER_H_ |
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#include <unistd.h> |
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#include <sys/types.h> |
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#include <sys/socket.h> |
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#include <netinet/in.h> |
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#include <netinet/tcp.h> |
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#include <arpa/inet.h> |
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#include <netdb.h> |
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#include "lscp.h" |
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#include "lscpparser.h" |
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#include "../Sampler.h" |
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#include "../common/Thread.h" |
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/// TCP Port on which the server should listen for connection requests. |
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#define LSCP_PORT 8888 |
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using namespace LinuxSampler; |
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/// 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). |
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extern int hSession; |
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// External references to the main scanner and parser functions |
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extern int yyparse(void* YYPARSE_PARAM); |
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extern int yylex_init(yyscan_t* scanner); |
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extern int yylex_destroy(yyscan_t yyscanner); |
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/** |
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* Network server for the LinuxSampler Control Protocol (LSCP). |
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*/ |
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class LSCPServer : public Thread { |
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public: |
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LSCPServer(Sampler* pSampler); |
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// Methods called by the parser |
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String DestroyAudioOutputDevice(uint DeviceIndex); |
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String LoadInstrument(String Filename, uint uiInstrument, uint uiSamplerChannel, bool bBackground = false); |
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String LoadEngine(String EngineName, uint uiSamplerChannel); |
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String GetChannels(); |
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String AddChannel(); |
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String RemoveChannel(uint uiSamplerChannel); |
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String GetAvailableEngines(); |
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String GetEngineInfo(String EngineName); |
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String GetChannelInfo(uint uiSamplerChannel); |
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String GetVoiceCount(uint uiSamplerChannel); |
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String GetStreamCount(uint uiSamplerChannel); |
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String GetBufferFill(fill_response_t ResponseType, uint uiSamplerChannel); |
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String GetAvailableAudioOutputDrivers(); |
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String GetAudioOutputDriverInfo(String Driver); |
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#ifdef __GNUC__ |
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typedef std::map<String,String> StringMap; // nasty workaround for a GCC bug (see GCC bug #15980, #57) |
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String GetAudioOutputDriverParameterInfo(String Driver, String Parameter, std::map<String,String> DependencyList = StringMap()); |
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String CreateAudioOutputDevice(String Driver, std::map<String,String> Parameters = StringMap()); |
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#else |
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String GetAudioOutputDriverParameterInfo(String Driver, String Parameter, std::map<String,String> DependencyList = std::map<String,String>()); |
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String CreateAudioOutputDevice(String Driver, std::map<String,String> Parameters = std::map<String,String>()); |
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#endif // __GNUC__ |
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String GetAudioOutputDeviceCount(); |
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String GetAudioOutputDevices(); |
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String GetAudioOutputDeviceInfo(uint DeviceIndex); |
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String GetAudioOutputChannelInfo(uint DeviceId, uint ChannelId); |
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String GetAudioOutputChannelParameterInfo(uint DeviceId, uint ChannelId, String ParameterName); |
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String SetAudioOutputChannelParameter(uint DeviceId, uint ChannelId, String ParamKey, String ParamVal); |
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String SetAudioOutputDeviceParameter(uint DeviceIndex, String ParamKey, String ParamVal); |
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String SetAudioOutputChannel(uint ChannelAudioOutputChannel, uint AudioOutputDeviceInputChannel, uint uiSamplerChannel); |
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String SetMIDIInputType(String MidiInputDriver, uint uiSamplerChannel); |
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String SetMIDIInputPort(String MIDIInputPort, uint uiSamplerchannel); |
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String SetMIDIInputChannel(uint MIDIChannel, uint uiSamplerChannel); |
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String SetAudioOutputDevice(uint AudioDeviceId, uint SamplerChannel); |
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String SetVolume(double Volume, uint uiSamplerChannel); |
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String ResetChannel(uint uiSamplerChannel); |
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String SubscribeNotification(event_t Event); |
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String UnsubscribeNotification(event_t Event); |
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void AnswerClient(String ReturnMessage); |
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protected: |
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int hSocket; |
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sockaddr_in SocketAddress; |
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Sampler* pSampler; |
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int Main(); ///< Implementation of virtual method from class Thread |
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private: |
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/** |
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* Converts a result_t structure into a valid LSCP answer message. |
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*/ |
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inline String ConvertResult(result_t result) { |
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switch (result.type) { |
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case result_type_success: { |
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return "OK\r\n"; |
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} |
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case result_type_warning: { |
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std::stringstream ss; |
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ss << "WRN:" << result.code << ":" << result.message << "\r\n"; |
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return ss.str(); |
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} |
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case result_type_error: { |
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std::stringstream ss; |
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ss << "ERR:" << result.code << ":" << result.message << "\r\n"; |
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return ss.str(); |
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} |
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} |
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} |
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template<class T> inline String ToString(T o) { |
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std::stringstream ss; |
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ss << o; |
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return ss.str(); |
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} |
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}; |
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/** |
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* Instrument loader thread for the LinuxSampler Control Protocol (LSCP). |
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*/ |
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class LSCPLoadInstrument : public Thread { |
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public: |
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LSCPLoadInstrument(Engine* pEngine, String Filename, uint uiInstrument); |
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protected: |
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// Instance variables. |
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Engine* pEngine; |
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String Filename; |
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uint uiInstrument; |
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// Implementation of virtual method from class Thread. |
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int Main(); |
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}; |
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#endif // __LSCPSERVER_H_ |