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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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|
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#include "lscpserver.h" |
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#include "lscpresultset.h" |
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|
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#include "../engines/gig/Engine.h" |
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|
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LSCPServer::LSCPServer(Sampler* pSampler) : Thread(false, 0, -4) { |
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this->pSampler = pSampler; |
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} |
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|
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int LSCPServer::Main() { |
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hSocket = socket(AF_INET, SOCK_STREAM, 0); |
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if (hSocket < 0) { |
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std::cerr << "LSCPServer: Could not create server socket." << std::endl; |
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//return -1; |
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exit(EXIT_FAILURE); |
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} |
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|
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SocketAddress.sin_family = AF_INET; |
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SocketAddress.sin_port = htons(LSCP_PORT); |
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SocketAddress.sin_addr.s_addr = htonl(INADDR_ANY); |
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|
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if (bind(hSocket, (sockaddr*) &SocketAddress, sizeof(sockaddr_in)) < 0) { |
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std::cerr << "LSCPServer: Could not bind server socket." << std::endl; |
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close(hSocket); |
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//return -1; |
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exit(EXIT_FAILURE); |
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} |
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|
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listen(hSocket, 1); |
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dmsg(1,("LSCPServer: Server running.\n")); // server running |
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|
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// now wait for client connections and handle their requests |
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sockaddr_in client; |
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int length = sizeof(client); |
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while (true) { |
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hSession = accept(hSocket, (sockaddr*) &client, (socklen_t*) &length); |
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if (hSession < 0) { |
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std::cerr << "LSCPServer: Client connection failed." << std::endl; |
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close(hSocket); |
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//return -1; |
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exit(EXIT_FAILURE); |
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} |
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|
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dmsg(1,("LSCPServer: Client connection established.\n")); |
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//send(hSession, "Welcome!\r\n", 10, 0); |
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|
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// Parser invocation |
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yyparse_param_t yyparse_param; |
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yyparse_param.pServer = this; |
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yylex_init(&yyparse_param.pScanner); |
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while (yyparse(&yyparse_param) == LSCP_SYNTAX_ERROR); // recall parser in case of syntax error |
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yylex_destroy(yyparse_param.pScanner); |
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|
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close(hSession); |
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dmsg(1,("LSCPServer: Client connection terminated.\n")); |
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} |
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} |
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|
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/** |
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* Will be called by the parser whenever it wants to send an answer to the |
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* client / frontend. |
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* |
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* @param ReturnMessage - message that will be send to the client |
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*/ |
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void LSCPServer::AnswerClient(String ReturnMessage) { |
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dmsg(2,("LSCPServer::AnswerClient(ReturnMessage=%s)", ReturnMessage.c_str())); |
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send(hSession, ReturnMessage.c_str(), ReturnMessage.size(), 0); |
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} |
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|
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/** |
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* Will be called by the parser to load an instrument. |
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*/ |
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String LSCPServer::LoadInstrument(String Filename, uint uiInstrument, uint uiSamplerChannel) { |
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dmsg(2,("LSCPServer: LoadInstrument(Filename=%s,Instrument=%d,SamplerChannel=%d)\n", Filename.c_str(), uiInstrument, uiSamplerChannel)); |
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result_t result; |
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try { |
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SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel); |
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if (!pSamplerChannel) throw LinuxSamplerException("Index out of bounds"); |
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Engine* pEngine = pSamplerChannel->GetEngine(); |
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if (!pEngine) throw LinuxSamplerException("No engine loaded on channel"); |
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pEngine->LoadInstrument(Filename.c_str(), uiInstrument); |
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result.type = result_type_success; |
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} |
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catch (LinuxSamplerException e) { |
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e.PrintMessage(); |
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result.type = result_type_error; |
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result.code = LSCP_ERR_UNKNOWN; |
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result.message = e.Message(); |
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} |
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return ConvertResult(result); |
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} |
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|
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/** |
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* Will be called by the parser to load and deploy an engine. |
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*/ |
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String LSCPServer::LoadEngine(String EngineName, uint uiSamplerChannel) { |
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dmsg(2,("LSCPServer: LoadEngine(EngineName=%s,SamplerChannel=%d)\n", EngineName.c_str(), uiSamplerChannel)); |
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result_t result; |
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try { |
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Engine::type_t type; |
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if (EngineName == "gig") type = Engine::type_gig; |
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else throw LinuxSamplerException("Unknown engine type"); |
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SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel); |
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if (!pSamplerChannel) throw LinuxSamplerException("Index out of bounds"); |
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pSamplerChannel->LoadEngine(type); |
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result.type = result_type_success; |
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} |
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catch (LinuxSamplerException e) { |
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e.PrintMessage(); |
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result.type = result_type_error; |
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result.code = LSCP_ERR_UNKNOWN; |
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result.message = e.Message(); |
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} |
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return ConvertResult(result); |
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} |
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|
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/** |
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* Will be called by the parser to get the amount of sampler channels. |
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*/ |
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String LSCPServer::GetChannels() { |
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dmsg(2,("LSCPServer: GetChannels()\n")); |
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return ToString(pSampler->SamplerChannels()) + "\r\n"; |
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} |
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|
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/** |
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* Will be called by the parser to add a sampler channel. |
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*/ |
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String LSCPServer::AddChannel() { |
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dmsg(2,("LSCPServer: AddChannel()\n")); |
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SamplerChannel* pSamplerChannel = pSampler->AddSamplerChannel(); |
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return "OK[" + ToString(pSamplerChannel->Index()) + "]\r\n"; |
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} |
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|
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/** |
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* Will be called by the parser to remove a sampler channel. |
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*/ |
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String LSCPServer::RemoveChannel(uint uiSamplerChannel) { |
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dmsg(2,("LSCPServer: RemoveChannel(SamplerChannel=%d)\n", uiSamplerChannel)); |
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pSampler->RemoveSamplerChannel(uiSamplerChannel); |
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return "OK\r\n"; |
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} |
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|
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/** |
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* Will be called by the parser to get all available engines. |
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*/ |
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String LSCPServer::GetAvailableEngines() { |
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dmsg(2,("LSCPServer: GetAvailableEngines()\n")); |
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return "gig\r\n"; |
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} |
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|
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/** |
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* Will be called by the parser to get descriptions for a particular engine. |
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*/ |
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String LSCPServer::GetEngineInfo(String EngineName) { |
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dmsg(2,("LSCPServer: GetEngineInfo(EngineName=%s)\n", EngineName.c_str())); |
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result_t result; |
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try { |
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if (EngineName == "gig") { |
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Engine* pEngine = new LinuxSampler::gig::Engine; |
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String info = pEngine->Description() + "\r\n"; |
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delete pEngine; |
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return info; // success |
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} |
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else throw LinuxSamplerException("Unknown engine type"); |
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} |
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catch (LinuxSamplerException e) { |
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e.PrintMessage(); |
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result.type = result_type_error; |
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result.code = LSCP_ERR_UNKNOWN; |
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result.message = e.Message(); |
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} |
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return ConvertResult(result); |
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} |
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|
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/** |
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* Will be called by the parser to get informations about a particular |
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* sampler channel. |
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*/ |
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String LSCPServer::GetChannelInfo(uint uiSamplerChannel) { |
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dmsg(2,("LSCPServer: GetChannelInfo(SamplerChannel=%d)\n", uiSamplerChannel)); |
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try { |
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LSCPResultSet result; |
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SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel); |
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if (!pSamplerChannel) throw LinuxSamplerException("Index out of bounds"); |
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Engine* pEngine = pSamplerChannel->GetEngine(); |
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|
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//Defaults values |
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String EngineName = "NONE"; |
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float Volume = 0; |
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String InstrumentFileName = "NONE"; |
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int InstrumentIndex = 0; |
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|
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if (pEngine) { |
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EngineName = pEngine->EngineName(); |
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Volume = pEngine->Volume(); |
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int iIdx = pEngine->InstrumentIndex(); |
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if (iIdx != -1) { |
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InstrumentFileName = pEngine->InstrumentFileName(); |
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InstrumentIndex = iIdx; |
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} |
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} |
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|
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result.Add("ENGINE_NAME", EngineName); |
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result.Add("VOLUME", Volume); |
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|
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//Some hardcoded stuff for now to make GUI look good |
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result.Add("AUDIO_OUTPUT_DEVICE", "0"); |
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result.Add("AUDIO_OUTPUT_CHANNELS", "2"); |
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result.Add("AUDIO_OUTPUT_ROUTING", "0,1"); |
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|
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result.Add("INSTRUMENT_FILE", InstrumentFileName); |
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result.Add("INSTRUMENT_NR", InstrumentIndex); |
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|
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//Some more hardcoded stuff for now to make GUI look good |
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result.Add("MIDI_INPUT_DEVICE", "0"); |
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result.Add("MIDI_INPUT_PORT", "0"); |
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result.Add("MIDI_INPUT_CHANNEL", "1"); |
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|
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return result.Produce(); |
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} |
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catch (LinuxSamplerException e) { |
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result_t result; |
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e.PrintMessage(); |
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result.type = result_type_error; |
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result.code = LSCP_ERR_UNKNOWN; |
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result.message = e.Message(); |
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return ConvertResult(result); |
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} |
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} |
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|
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/** |
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* Will be called by the parser to get the amount of active voices on a |
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* particular sampler channel. |
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*/ |
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String LSCPServer::GetVoiceCount(uint uiSamplerChannel) { |
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dmsg(2,("LSCPServer: GetVoiceCount(SamplerChannel=%d)\n", uiSamplerChannel)); |
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result_t result; |
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try { |
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SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel); |
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if (!pSamplerChannel) throw LinuxSamplerException("Index out of bounds"); |
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Engine* pEngine = pSamplerChannel->GetEngine(); |
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if (!pEngine) throw LinuxSamplerException("No engine loaded on channel"); |
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return ToString(pEngine->VoiceCount()) + "\r\n"; // success |
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} |
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catch (LinuxSamplerException e) { |
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e.PrintMessage(); |
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result.type = result_type_error; |
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result.code = LSCP_ERR_UNKNOWN; |
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result.message = e.Message(); |
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} |
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return ConvertResult(result); |
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} |
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|
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/** |
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* Will be called by the parser to get the amount of active disk streams on a |
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* particular sampler channel. |
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*/ |
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String LSCPServer::GetStreamCount(uint uiSamplerChannel) { |
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dmsg(2,("LSCPServer: GetStreamCount(SamplerChannel=%d)\n", uiSamplerChannel)); |
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result_t result; |
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try { |
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SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel); |
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if (!pSamplerChannel) throw LinuxSamplerException("Index out of bounds"); |
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Engine* pEngine = pSamplerChannel->GetEngine(); |
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if (!pEngine) throw LinuxSamplerException("No engine loaded on channel"); |
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return ToString(pEngine->DiskStreamCount()) + "\r\n"; // success |
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} |
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catch (LinuxSamplerException e) { |
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e.PrintMessage(); |
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result.type = result_type_error; |
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result.code = LSCP_ERR_UNKNOWN; |
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result.message = e.Message(); |
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} |
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return ConvertResult(result); |
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} |
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|
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/** |
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* Will be called by the parser to get the buffer fill states of all disk |
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* streams on a particular sampler channel. |
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*/ |
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String LSCPServer::GetBufferFill(fill_response_t ResponseType, uint uiSamplerChannel) { |
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dmsg(2,("LSCPServer: GetBufferFill(ResponseType=%d, SamplerChannel=%d)\n", ResponseType, uiSamplerChannel)); |
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result_t result; |
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try { |
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SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel); |
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if (!pSamplerChannel) throw LinuxSamplerException("Index out of bounds"); |
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Engine* pEngine = pSamplerChannel->GetEngine(); |
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if (!pEngine) throw LinuxSamplerException("No engine loaded on channel"); |
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if (!pEngine->DiskStreamSupported()) return "NA\r\n"; |
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switch (ResponseType) { |
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case fill_response_bytes: |
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return ToString(pEngine->DiskStreamBufferFillBytes()) + "\r\n"; // success |
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case fill_response_percentage: |
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return ToString(pEngine->DiskStreamBufferFillPercentage()) + "\r\n"; // success |
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default: |
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throw LinuxSamplerException("Unknown fill response type"); |
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} |
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} |
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catch (LinuxSamplerException e) { |
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e.PrintMessage(); |
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result.type = result_type_error; |
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result.code = LSCP_ERR_UNKNOWN; |
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result.message = e.Message(); |
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} |
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return ConvertResult(result); |
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} |
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|
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/** |
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* Will be called by the parser to change the audio output type on a |
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* particular sampler channel. |
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*/ |
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String LSCPServer::SetAudioOutputType(AudioOutputDevice::type_t AudioOutputType, uint uiSamplerChannel) { |
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dmsg(2,("LSCPServer: SetAudioOutputType(AudioOutputType=%d, SamplerChannel=%d)\n", AudioOutputType, uiSamplerChannel)); |
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result_t result; |
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try { |
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SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel); |
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if (!pSamplerChannel) throw LinuxSamplerException("Index out of bounds"); |
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pSamplerChannel->SetAudioOutputDevice(AudioOutputType); |
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result.type = result_type_success; |
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} |
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catch (LinuxSamplerException e) { |
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e.PrintMessage(); |
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result.type = result_type_error; |
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result.code = LSCP_ERR_UNKNOWN; |
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result.message = e.Message(); |
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} |
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return ConvertResult(result); |
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} |
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|
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/** |
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* Will be called by the parser to change the audio output channel for |
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* playback on a particular sampler channel. |
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*/ |
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String LSCPServer::SetAudioOutputChannel(uint AudioOutputChannel, uint uiSamplerChannel) { |
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dmsg(2,("LSCPServer: SetAudioOutputChannel(AudioOutputChannel=%d, SamplerChannel=%d)\n", AudioOutputChannel, uiSamplerChannel)); |
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return "ERR:0:Not implemented yet.\r\n"; |
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} |
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|
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String LSCPServer::SetMIDIInputType(MidiInputDevice::type_t MidiInputType, uint uiSamplerChannel) { |
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dmsg(2,("LSCPServer: SetMIDIInputType(MidiInputType=%d, SamplerChannel=%d)\n", MidiInputType, uiSamplerChannel)); |
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result_t result; |
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try { |
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SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel); |
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if (!pSamplerChannel) throw LinuxSamplerException("Index out of bounds"); |
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pSamplerChannel->SetMidiInputDevice(MidiInputType); |
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result.type = result_type_success; |
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} |
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catch (LinuxSamplerException e) { |
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e.PrintMessage(); |
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result.type = result_type_error; |
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result.code = LSCP_ERR_UNKNOWN; |
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result.message = e.Message(); |
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} |
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return ConvertResult(result); |
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} |
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|
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/** |
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* Will be called by the parser to change the MIDI input port on which the |
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* engine of a particular sampler channel should listen to. |
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*/ |
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String LSCPServer::SetMIDIInputPort(String MIDIInputPort, uint uiSamplerChannel) { |
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dmsg(2,("LSCPServer: SetMIDIInputPort(MIDIInputPort=%s, Samplerchannel=%d)\n", MIDIInputPort.c_str(), uiSamplerChannel)); |
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result_t result; |
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try { |
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SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel); |
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if (!pSamplerChannel) throw LinuxSamplerException("Index out of bounds"); |
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if (!pSamplerChannel->GetMidiInputDevice()) throw LinuxSamplerException("No MIDI input device connected yet"); |
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pSamplerChannel->GetMidiInputDevice()->SetInputPort(MIDIInputPort.c_str()); |
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result.type = result_type_success; |
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} |
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catch (LinuxSamplerException e) { |
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e.PrintMessage(); |
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result.type = result_type_error; |
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result.code = LSCP_ERR_UNKNOWN; |
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result.message = e.Message(); |
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} |
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return ConvertResult(result); |
400 |
} |
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|
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/** |
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* Will be called by the parser to change the MIDI input channel on which the |
404 |
* engine of a particular sampler channel should listen to. |
405 |
*/ |
406 |
String LSCPServer::SetMIDIInputChannel(uint MIDIChannel, uint uiSamplerChannel) { |
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dmsg(2,("LSCPServer: SetMIDIInputChannel(MIDIChannel=%d, SamplerChannel=%d)\n", MIDIChannel, uiSamplerChannel)); |
408 |
result_t result; |
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try { |
410 |
SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel); |
411 |
if (!pSamplerChannel) throw LinuxSamplerException("Index out of bounds"); |
412 |
if (!pSamplerChannel->GetMidiInputDevice()) throw LinuxSamplerException("No MIDI input device connected yet"); |
413 |
MidiInputDevice::type_t oldtype = pSamplerChannel->GetMidiInputDevice()->Type(); |
414 |
pSamplerChannel->SetMidiInputDevice(oldtype, (MidiInputDevice::midi_chan_t) MIDIChannel); |
415 |
|
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result.type = result_type_success; |
417 |
} |
418 |
catch (LinuxSamplerException e) { |
419 |
e.PrintMessage(); |
420 |
result.type = result_type_error; |
421 |
result.code = LSCP_ERR_UNKNOWN; |
422 |
result.message = e.Message(); |
423 |
} |
424 |
return ConvertResult(result); |
425 |
} |
426 |
|
427 |
/** |
428 |
* Will be called by the parser to change the global volume factor on a |
429 |
* particular sampler channel. |
430 |
*/ |
431 |
String LSCPServer::SetVolume(double Volume, uint uiSamplerChannel) { |
432 |
dmsg(2,("LSCPServer: SetVolume(Volume=%f, SamplerChannel=%d)\n", Volume, uiSamplerChannel)); |
433 |
result_t result; |
434 |
try { |
435 |
SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel); |
436 |
if (!pSamplerChannel) throw LinuxSamplerException("Index out of bounds"); |
437 |
Engine* pEngine = pSamplerChannel->GetEngine(); |
438 |
if (!pEngine) throw LinuxSamplerException("No engine loaded on channel"); |
439 |
pEngine->Volume(Volume); |
440 |
result.type = result_type_success; |
441 |
} |
442 |
catch (LinuxSamplerException e) { |
443 |
e.PrintMessage(); |
444 |
result.type = result_type_error; |
445 |
result.code = LSCP_ERR_UNKNOWN; |
446 |
result.message = e.Message(); |
447 |
} |
448 |
return ConvertResult(result); |
449 |
} |
450 |
|
451 |
/** |
452 |
* Will be called by the parser to reset a particular sampler channel. |
453 |
*/ |
454 |
String LSCPServer::ResetChannel(uint uiSamplerChannel) { |
455 |
dmsg(2,("LSCPServer: ResetChannel(SamplerChannel=%d)\n", uiSamplerChannel)); |
456 |
result_t result; |
457 |
try { |
458 |
SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel); |
459 |
if (!pSamplerChannel) throw LinuxSamplerException("Index out of bounds"); |
460 |
Engine* pEngine = pSamplerChannel->GetEngine(); |
461 |
if (!pEngine) throw LinuxSamplerException("No engine loaded on channel"); |
462 |
pEngine->Reset(); |
463 |
result.type = result_type_success; |
464 |
} |
465 |
catch (LinuxSamplerException e) { |
466 |
e.PrintMessage(); |
467 |
result.type = result_type_error; |
468 |
result.code = LSCP_ERR_UNKNOWN; |
469 |
result.message = e.Message(); |
470 |
} |
471 |
return ConvertResult(result); |
472 |
} |
473 |
|
474 |
/** |
475 |
* Will be called by the parser to subscribe a client (frontend) on the |
476 |
* server for receiving event messages. |
477 |
*/ |
478 |
String LSCPServer::SubscribeNotification(uint UDPPort) { |
479 |
dmsg(2,("LSCPServer: SubscribeNotification(UDPPort=%d)\n", UDPPort)); |
480 |
return "ERR:0:Not implemented yet.\r\n"; |
481 |
} |
482 |
|
483 |
/** |
484 |
* Will be called by the parser to unsubscribe a client on the server |
485 |
* for not receiving further event messages. |
486 |
*/ |
487 |
String LSCPServer::UnsubscribeNotification(String SessionID) { |
488 |
dmsg(2,("LSCPServer: UnsubscribeNotification(SessionID=%s)\n", SessionID.c_str())); |
489 |
return "ERR:0:Not implemented yet.\r\n"; |
490 |
} |