/[svn]/linuxsampler/trunk/src/network/lscpserver.cpp
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Diff of /linuxsampler/trunk/src/network/lscpserver.cpp

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revision 1897 by persson, Sun May 10 09:31:51 2009 UTC revision 2324 by persson, Sun Mar 4 09:01:32 2012 UTC
# Line 3  Line 3 
3   *   LinuxSampler - modular, streaming capable sampler                     *   *   LinuxSampler - modular, streaming capable sampler                     *
4   *                                                                         *   *                                                                         *
5   *   Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck   *   *   Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck   *
6   *   Copyright (C) 2005 - 2009 Christian Schoenebeck                       *   *   Copyright (C) 2005 - 2012 Christian Schoenebeck                       *
7   *                                                                         *   *                                                                         *
8   *   This library is free software; you can redistribute it and/or modify  *   *   This library is free software; you can redistribute it and/or modify  *
9   *   it under the terms of the GNU General Public License as published by  *   *   it under the terms of the GNU General Public License as published by  *
# Line 43  Line 43 
43  #include "../engines/EngineChannelFactory.h"  #include "../engines/EngineChannelFactory.h"
44  #include "../drivers/audio/AudioOutputDeviceFactory.h"  #include "../drivers/audio/AudioOutputDeviceFactory.h"
45  #include "../drivers/midi/MidiInputDeviceFactory.h"  #include "../drivers/midi/MidiInputDeviceFactory.h"
46    #include "../effects/EffectFactory.h"
47    
48  namespace LinuxSampler {  namespace LinuxSampler {
49    
# Line 137  LSCPServer::LSCPServer(Sampler* pSampler Line 138  LSCPServer::LSCPServer(Sampler* pSampler
138      LSCPEvent::RegisterEvent(LSCPEvent::event_global_info, "GLOBAL_INFO");      LSCPEvent::RegisterEvent(LSCPEvent::event_global_info, "GLOBAL_INFO");
139      LSCPEvent::RegisterEvent(LSCPEvent::event_channel_midi, "CHANNEL_MIDI");      LSCPEvent::RegisterEvent(LSCPEvent::event_channel_midi, "CHANNEL_MIDI");
140      LSCPEvent::RegisterEvent(LSCPEvent::event_device_midi, "DEVICE_MIDI");      LSCPEvent::RegisterEvent(LSCPEvent::event_device_midi, "DEVICE_MIDI");
141        LSCPEvent::RegisterEvent(LSCPEvent::event_fx_instance_count, "EFFECT_INSTANCE_COUNT");
142        LSCPEvent::RegisterEvent(LSCPEvent::event_fx_instance_info, "EFFECT_INSTANCE_INFO");
143        LSCPEvent::RegisterEvent(LSCPEvent::event_send_fx_chain_count, "SEND_EFFECT_CHAIN_COUNT");
144        LSCPEvent::RegisterEvent(LSCPEvent::event_send_fx_chain_info, "SEND_EFFECT_CHAIN_INFO");
145      hSocket = -1;      hSocket = -1;
146  }  }
147    
# Line 442  int LSCPServer::Main() { Line 447  int LSCPServer::Main() {
447          #endif          #endif
448          // check if some engine channel's parameter / status changed, if so notify the respective LSCP event subscribers          // check if some engine channel's parameter / status changed, if so notify the respective LSCP event subscribers
449          {          {
450                EngineChannelFactory::EngineChannelsMutex.Lock();
451              std::set<EngineChannel*> engineChannels = EngineChannelFactory::EngineChannelInstances();              std::set<EngineChannel*> engineChannels = EngineChannelFactory::EngineChannelInstances();
452              std::set<EngineChannel*>::iterator itEngineChannel = engineChannels.begin();              std::set<EngineChannel*>::iterator itEngineChannel = engineChannels.begin();
453              std::set<EngineChannel*>::iterator itEnd           = engineChannels.end();              std::set<EngineChannel*>::iterator itEnd           = engineChannels.end();
# Line 459  int LSCPServer::Main() { Line 465  int LSCPServer::Main() {
465                      }                      }
466                  }                  }
467              }              }
468                EngineChannelFactory::EngineChannelsMutex.Unlock();
469          }          }
470    
471          // check if MIDI data arrived on some engine channel          // check if MIDI data arrived on some engine channel
# Line 2382  String LSCPServer::GetFxSendInfo(uint ui Line 2389  String LSCPServer::GetFxSendInfo(uint ui
2389              AudioRouting += ToString(pFxSend->DestinationChannel(chan));              AudioRouting += ToString(pFxSend->DestinationChannel(chan));
2390          }          }
2391    
2392            const String sEffectRouting =
2393                (pFxSend->DestinationEffectChain() >= 0 && pFxSend->DestinationEffectChainPosition() >= 0)
2394                    ? ToString(pFxSend->DestinationEffectChain()) + "," + ToString(pFxSend->DestinationEffectChainPosition())
2395                    : "NONE";
2396    
2397          // success          // success
2398          result.Add("NAME", _escapeLscpResponse(pFxSend->Name()));          result.Add("NAME", _escapeLscpResponse(pFxSend->Name()));
2399          result.Add("MIDI_CONTROLLER", pFxSend->MidiController());          result.Add("MIDI_CONTROLLER", pFxSend->MidiController());
2400          result.Add("LEVEL", ToString(pFxSend->Level()));          result.Add("LEVEL", ToString(pFxSend->Level()));
2401          result.Add("AUDIO_OUTPUT_ROUTING", AudioRouting);          result.Add("AUDIO_OUTPUT_ROUTING", AudioRouting);
2402            result.Add("EFFECT", sEffectRouting);
2403      } catch (Exception e) {      } catch (Exception e) {
2404          result.Error(e);          result.Error(e);
2405      }      }
# Line 2449  String LSCPServer::SetFxSendLevel(uint u Line 2462  String LSCPServer::SetFxSendLevel(uint u
2462      return result.Produce();      return result.Produce();
2463  }  }
2464    
2465    String LSCPServer::SetFxSendEffect(uint uiSamplerChannel, uint FxSendID, int iSendEffectChain, int iEffectChainPosition) {
2466        dmsg(2,("LSCPServer: SetFxSendEffect(%d,%d)\n", iSendEffectChain, iEffectChainPosition));
2467        LSCPResultSet result;
2468        try {
2469            FxSend* pFxSend = GetFxSend(uiSamplerChannel, FxSendID);
2470    
2471            pFxSend->SetDestinationEffect(iSendEffectChain, iEffectChainPosition);
2472            LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_fx_send_info, uiSamplerChannel, FxSendID));
2473        } catch (Exception e) {
2474            result.Error(e);
2475        }
2476        return result.Produce();
2477    }
2478    
2479    String LSCPServer::GetAvailableEffects() {
2480        dmsg(2,("LSCPServer: GetAvailableEffects()\n"));
2481        LSCPResultSet result;
2482        try {
2483            int n = EffectFactory::AvailableEffectsCount();
2484            result.Add(n);
2485        }
2486        catch (Exception e) {
2487            result.Error(e);
2488        }
2489        return result.Produce();
2490    }
2491    
2492    String LSCPServer::ListAvailableEffects() {
2493        dmsg(2,("LSCPServer: ListAvailableEffects()\n"));
2494        LSCPResultSet result;
2495        String list;
2496        try {
2497            //FIXME: for now we simply enumerate from 0 .. EffectFactory::AvailableEffectsCount() here, in future we should use unique IDs for effects during the whole sampler session. This issue comes into game when the user forces a reload of available effect plugins
2498            int n = EffectFactory::AvailableEffectsCount();
2499            for (int i = 0; i < n; i++) {
2500                if (i) list += ",";
2501                list += ToString(i);
2502            }
2503        }
2504        catch (Exception e) {
2505            result.Error(e);
2506        }
2507        result.Add(list);
2508        return result.Produce();
2509    }
2510    
2511    String LSCPServer::GetEffectInfo(int iEffectIndex) {
2512        dmsg(2,("LSCPServer: GetEffectInfo(%d)\n", iEffectIndex));
2513        LSCPResultSet result;
2514        try {
2515            EffectInfo* pEffectInfo = EffectFactory::GetEffectInfo(iEffectIndex);
2516            if (!pEffectInfo)
2517                throw Exception("There is no effect with index " + ToString(iEffectIndex));
2518    
2519            // convert the filename into the correct encoding as defined for LSCP
2520            // (especially in terms of special characters -> escape sequences)
2521    #if WIN32
2522            const String dllFileName = Path::fromWindows(pEffectInfo->Module()).toLscp();
2523    #else
2524            // assuming POSIX
2525            const String dllFileName = Path::fromPosix(pEffectInfo->Module()).toLscp();
2526    #endif
2527    
2528            result.Add("SYSTEM", pEffectInfo->EffectSystem());
2529            result.Add("MODULE", dllFileName);
2530            result.Add("NAME", _escapeLscpResponse(pEffectInfo->Name()));
2531            result.Add("DESCRIPTION", _escapeLscpResponse(pEffectInfo->Description()));
2532        }
2533        catch (Exception e) {
2534            result.Error(e);
2535        }
2536        return result.Produce();    
2537    }
2538    
2539    String LSCPServer::GetEffectInstanceInfo(int iEffectInstance) {
2540        dmsg(2,("LSCPServer: GetEffectInstanceInfo(%d)\n", iEffectInstance));
2541        LSCPResultSet result;
2542        try {
2543            Effect* pEffect = EffectFactory::GetEffectInstanceByID(iEffectInstance);
2544            if (!pEffect)
2545                throw Exception("There is no effect instance with ID " + ToString(iEffectInstance));
2546    
2547            EffectInfo* pEffectInfo = pEffect->GetEffectInfo();
2548    
2549            // convert the filename into the correct encoding as defined for LSCP
2550            // (especially in terms of special characters -> escape sequences)
2551    #if WIN32
2552            const String dllFileName = Path::fromWindows(pEffectInfo->Module()).toLscp();
2553    #else
2554            // assuming POSIX
2555            const String dllFileName = Path::fromPosix(pEffectInfo->Module()).toLscp();
2556    #endif
2557    
2558            result.Add("SYSTEM", pEffectInfo->EffectSystem());
2559            result.Add("MODULE", dllFileName);
2560            result.Add("NAME", _escapeLscpResponse(pEffectInfo->Name()));
2561            result.Add("DESCRIPTION", _escapeLscpResponse(pEffectInfo->Description()));
2562            result.Add("INPUT_CONTROLS", ToString(pEffect->InputControlCount()));
2563        }
2564        catch (Exception e) {
2565            result.Error(e);
2566        }
2567        return result.Produce();
2568    }
2569    
2570    String LSCPServer::GetEffectInstanceInputControlInfo(int iEffectInstance, int iInputControlIndex) {
2571        dmsg(2,("LSCPServer: GetEffectInstanceInputControlInfo(%d,%d)\n", iEffectInstance, iInputControlIndex));
2572        LSCPResultSet result;
2573        try {
2574            Effect* pEffect = EffectFactory::GetEffectInstanceByID(iEffectInstance);
2575            if (!pEffect)
2576                throw Exception("There is no effect instance with ID " + ToString(iEffectInstance));
2577    
2578            EffectControl* pEffectControl = pEffect->InputControl(iInputControlIndex);
2579            if (!pEffectControl)
2580                throw Exception(
2581                    "Effect instance " + ToString(iEffectInstance) +
2582                    " does not have an input control with index " +
2583                    ToString(iInputControlIndex)
2584                );
2585    
2586            result.Add("DESCRIPTION", _escapeLscpResponse(pEffectControl->Description()));
2587            result.Add("VALUE", pEffectControl->Value());
2588            if (pEffectControl->MinValue())
2589                 result.Add("RANGE_MIN", *pEffectControl->MinValue());
2590            if (pEffectControl->MaxValue())
2591                 result.Add("RANGE_MAX", *pEffectControl->MaxValue());
2592            if (!pEffectControl->Possibilities().empty())
2593                 result.Add("POSSIBILITIES", pEffectControl->Possibilities());
2594            if (pEffectControl->DefaultValue())
2595                 result.Add("DEFAULT", *pEffectControl->DefaultValue());
2596        } catch (Exception e) {
2597            result.Error(e);
2598        }
2599        return result.Produce();
2600    }
2601    
2602    String LSCPServer::SetEffectInstanceInputControlValue(int iEffectInstance, int iInputControlIndex, double dValue) {
2603        dmsg(2,("LSCPServer: SetEffectInstanceInputControlValue(%d,%d,%f)\n", iEffectInstance, iInputControlIndex, dValue));
2604        LSCPResultSet result;
2605        try {
2606            Effect* pEffect = EffectFactory::GetEffectInstanceByID(iEffectInstance);
2607            if (!pEffect)
2608                throw Exception("There is no effect instance with ID " + ToString(iEffectInstance));
2609    
2610            EffectControl* pEffectControl = pEffect->InputControl(iInputControlIndex);
2611            if (!pEffectControl)
2612                throw Exception(
2613                    "Effect instance " + ToString(iEffectInstance) +
2614                    " does not have an input control with index " +
2615                    ToString(iInputControlIndex)
2616                );
2617    
2618            pEffectControl->SetValue(dValue);
2619            LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_fx_instance_info, iEffectInstance));
2620        } catch (Exception e) {
2621            result.Error(e);
2622        }
2623        return result.Produce();
2624    }
2625    
2626    String LSCPServer::CreateEffectInstance(int iEffectIndex) {
2627        dmsg(2,("LSCPServer: CreateEffectInstance(%d)\n", iEffectIndex));
2628        LSCPResultSet result;
2629        try {
2630            EffectInfo* pEffectInfo = EffectFactory::GetEffectInfo(iEffectIndex);
2631            if (!pEffectInfo)
2632                throw Exception("There is no effect with index " + ToString(iEffectIndex));
2633            Effect* pEffect = EffectFactory::Create(pEffectInfo);
2634            result = pEffect->ID(); // success
2635            LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_fx_instance_count, EffectFactory::EffectInstancesCount()));
2636        } catch (Exception e) {
2637            result.Error(e);
2638        }
2639        return result.Produce();
2640    }
2641    
2642    String LSCPServer::CreateEffectInstance(String effectSystem, String module, String effectName) {
2643        dmsg(2,("LSCPServer: CreateEffectInstance('%s','%s','%s')\n", effectSystem.c_str(), module.c_str(), effectName.c_str()));
2644        LSCPResultSet result;
2645        try {
2646            // to allow loading the same LSCP session file on different systems
2647            // successfully, probably with different effect plugin DLL paths or even
2648            // running completely different operating systems, we do the following
2649            // for finding the right effect:
2650            //
2651            // first try to search for an exact match of the effect plugin DLL
2652            // (a.k.a 'module'), to avoid picking the wrong DLL with the same
2653            // effect name ...
2654            EffectInfo* pEffectInfo = EffectFactory::GetEffectInfo(effectSystem, module, effectName, EffectFactory::MODULE_MATCH_EXACTLY);
2655            // ... if no effect with exactly matchin DLL filename was found, then
2656            // try to lower the restrictions of matching the effect plugin DLL
2657            // filename and try again and again ...
2658            if (!pEffectInfo) {
2659                dmsg(2,("no exact module match, trying MODULE_IGNORE_PATH\n"));
2660                pEffectInfo = EffectFactory::GetEffectInfo(effectSystem, module, effectName, EffectFactory::MODULE_IGNORE_PATH);
2661            }
2662            if (!pEffectInfo) {
2663                dmsg(2,("no module match, trying MODULE_IGNORE_PATH | MODULE_IGNORE_CASE\n"));
2664                pEffectInfo = EffectFactory::GetEffectInfo(effectSystem, module, effectName, EffectFactory::MODULE_IGNORE_PATH | EffectFactory::MODULE_IGNORE_CASE);
2665            }
2666            if (!pEffectInfo) {
2667                dmsg(2,("no module match, trying MODULE_IGNORE_PATH | MODULE_IGNORE_CASE | MODULE_IGNORE_EXTENSION\n"));
2668                pEffectInfo = EffectFactory::GetEffectInfo(effectSystem, module, effectName, EffectFactory::MODULE_IGNORE_PATH | EffectFactory::MODULE_IGNORE_CASE | EffectFactory::MODULE_IGNORE_EXTENSION);
2669            }
2670            // ... if there was still no effect found, then completely ignore the
2671            // DLL plugin filename argument and just search for the matching effect
2672            // system type and effect name
2673            if (!pEffectInfo) {
2674                dmsg(2,("no module match, trying MODULE_IGNORE_ALL\n"));
2675                pEffectInfo = EffectFactory::GetEffectInfo(effectSystem, module, effectName, EffectFactory::MODULE_IGNORE_ALL);
2676            }
2677            if (!pEffectInfo)
2678                throw Exception("There is no such effect '" + effectSystem + "' '" + module + "' '" + effectName + "'");
2679    
2680            Effect* pEffect = EffectFactory::Create(pEffectInfo);
2681            result = LSCPResultSet(pEffect->ID());
2682            LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_fx_instance_count, EffectFactory::EffectInstancesCount()));
2683        } catch (Exception e) {
2684            result.Error(e);
2685        }
2686        return result.Produce();
2687    }
2688    
2689    String LSCPServer::DestroyEffectInstance(int iEffectInstance) {
2690        dmsg(2,("LSCPServer: DestroyEffectInstance(%d)\n", iEffectInstance));
2691        LSCPResultSet result;
2692        try {
2693            Effect* pEffect = EffectFactory::GetEffectInstanceByID(iEffectInstance);
2694            if (!pEffect)
2695                throw Exception("There is no effect instance with ID " + ToString(iEffectInstance));
2696            EffectFactory::Destroy(pEffect);
2697            LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_fx_instance_count, EffectFactory::EffectInstancesCount()));
2698        } catch (Exception e) {
2699            result.Error(e);
2700        }
2701        return result.Produce();
2702    }
2703    
2704    String LSCPServer::GetEffectInstances() {
2705        dmsg(2,("LSCPServer: GetEffectInstances()\n"));
2706        LSCPResultSet result;
2707        try {
2708            int n = EffectFactory::EffectInstancesCount();
2709            result.Add(n);
2710        } catch (Exception e) {
2711            result.Error(e);
2712        }
2713        return result.Produce();
2714    }
2715    
2716    String LSCPServer::ListEffectInstances() {
2717        dmsg(2,("LSCPServer: ListEffectInstances()\n"));
2718        LSCPResultSet result;
2719        String list;
2720        try {
2721            int n = EffectFactory::EffectInstancesCount();
2722            for (int i = 0; i < n; i++) {
2723                Effect* pEffect = EffectFactory::GetEffectInstance(i);
2724                if (i) list += ",";
2725                list += ToString(pEffect->ID());
2726            }
2727        } catch (Exception e) {
2728            result.Error(e);
2729        }
2730        result.Add(list);
2731        return result.Produce();
2732    }
2733    
2734    String LSCPServer::GetSendEffectChains(int iAudioOutputDevice) {
2735        dmsg(2,("LSCPServer: GetSendEffectChains(%d)\n", iAudioOutputDevice));
2736        LSCPResultSet result;
2737        try {
2738            std::map<uint,AudioOutputDevice*> devices = pSampler->GetAudioOutputDevices();
2739            if (!devices.count(iAudioOutputDevice))
2740                throw Exception("There is no audio output device with index " + ToString(iAudioOutputDevice) + ".");
2741            AudioOutputDevice* pDevice = devices[iAudioOutputDevice];
2742            int n = pDevice->SendEffectChainCount();
2743            result.Add(n);
2744        } catch (Exception e) {
2745            result.Error(e);
2746        }
2747        return result.Produce();
2748    }
2749    
2750    String LSCPServer::ListSendEffectChains(int iAudioOutputDevice) {
2751        dmsg(2,("LSCPServer: ListSendEffectChains(%d)\n", iAudioOutputDevice));
2752        LSCPResultSet result;
2753        String list;
2754        try {
2755            std::map<uint,AudioOutputDevice*> devices = pSampler->GetAudioOutputDevices();
2756            if (!devices.count(iAudioOutputDevice))
2757                throw Exception("There is no audio output device with index " + ToString(iAudioOutputDevice) + ".");
2758            AudioOutputDevice* pDevice = devices[iAudioOutputDevice];
2759            int n = pDevice->SendEffectChainCount();
2760            for (int i = 0; i < n; i++) {
2761                EffectChain* pEffectChain = pDevice->SendEffectChain(i);
2762                if (i) list += ",";
2763                list += ToString(pEffectChain->ID());
2764            }
2765        } catch (Exception e) {
2766            result.Error(e);
2767        }
2768        result.Add(list);
2769        return result.Produce();
2770    }
2771    
2772    String LSCPServer::AddSendEffectChain(int iAudioOutputDevice) {
2773        dmsg(2,("LSCPServer: AddSendEffectChain(%d)\n", iAudioOutputDevice));
2774        LSCPResultSet result;
2775        try {
2776            std::map<uint,AudioOutputDevice*> devices = pSampler->GetAudioOutputDevices();
2777            if (!devices.count(iAudioOutputDevice))
2778                throw Exception("There is no audio output device with index " + ToString(iAudioOutputDevice) + ".");
2779            AudioOutputDevice* pDevice = devices[iAudioOutputDevice];
2780            EffectChain* pEffectChain = pDevice->AddSendEffectChain();
2781            result = pEffectChain->ID();
2782            LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_send_fx_chain_count, iAudioOutputDevice, pDevice->SendEffectChainCount()));
2783        } catch (Exception e) {
2784            result.Error(e);
2785        }
2786        return result.Produce();
2787    }
2788    
2789    String LSCPServer::RemoveSendEffectChain(int iAudioOutputDevice, int iSendEffectChain) {
2790        dmsg(2,("LSCPServer: RemoveSendEffectChain(%d,%d)\n", iAudioOutputDevice, iSendEffectChain));
2791        LSCPResultSet result;
2792        try {
2793            std::map<uint,AudioOutputDevice*> devices = pSampler->GetAudioOutputDevices();
2794            if (!devices.count(iAudioOutputDevice))
2795                throw Exception("There is no audio output device with index " + ToString(iAudioOutputDevice) + ".");
2796    
2797            std::set<EngineChannel*> engineChannels = EngineChannelFactory::EngineChannelInstances();
2798            std::set<EngineChannel*>::iterator itEngineChannel = engineChannels.begin();
2799            std::set<EngineChannel*>::iterator itEnd           = engineChannels.end();
2800            for (; itEngineChannel != itEnd; ++itEngineChannel) {
2801                AudioOutputDevice* pDev = (*itEngineChannel)->GetAudioOutputDevice();
2802                if (pDev != NULL && pDev->deviceId() == iAudioOutputDevice) {
2803                    for (int i = 0; i < (*itEngineChannel)->GetFxSendCount(); i++) {
2804                        FxSend* fxs = (*itEngineChannel)->GetFxSend(i);
2805                        if(fxs != NULL && fxs->DestinationEffectChain() == iSendEffectChain) {
2806                            throw Exception("The effect chain is still in use by channel " + ToString((*itEngineChannel)->GetSamplerChannel()->Index()));
2807                        }
2808                    }
2809                }
2810            }
2811    
2812            AudioOutputDevice* pDevice = devices[iAudioOutputDevice];
2813            for (int i = 0; i < pDevice->SendEffectChainCount(); i++) {
2814                EffectChain* pEffectChain = pDevice->SendEffectChain(i);
2815                if (pEffectChain->ID() == iSendEffectChain) {
2816                    pDevice->RemoveSendEffectChain(i);
2817                    LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_send_fx_chain_count, iAudioOutputDevice, pDevice->SendEffectChainCount()));
2818                    return result.Produce();
2819                }
2820            }
2821            throw Exception(
2822                "There is no send effect chain with ID " +
2823                ToString(iSendEffectChain) + " for audio output device " +
2824                ToString(iAudioOutputDevice) + "."
2825            );
2826        } catch (Exception e) {
2827            result.Error(e);
2828        }
2829        return result.Produce();
2830    }
2831    
2832    static EffectChain* _getSendEffectChain(Sampler* pSampler, int iAudioOutputDevice, int iSendEffectChain) throw (Exception) {
2833        std::map<uint,AudioOutputDevice*> devices = pSampler->GetAudioOutputDevices();
2834        if (!devices.count(iAudioOutputDevice))
2835            throw Exception(
2836                "There is no audio output device with index " +
2837                ToString(iAudioOutputDevice) + "."
2838            );
2839        AudioOutputDevice* pDevice = devices[iAudioOutputDevice];
2840        EffectChain* pEffectChain = pDevice->SendEffectChainByID(iSendEffectChain);
2841        if(pEffectChain != NULL) return pEffectChain;
2842        throw Exception(
2843            "There is no send effect chain with ID " +
2844            ToString(iSendEffectChain) + " for audio output device " +
2845            ToString(iAudioOutputDevice) + "."
2846        );
2847    }
2848    
2849    String LSCPServer::GetSendEffectChainInfo(int iAudioOutputDevice, int iSendEffectChain) {
2850        dmsg(2,("LSCPServer: GetSendEffectChainInfo(%d,%d)\n", iAudioOutputDevice, iSendEffectChain));
2851        LSCPResultSet result;
2852        try {
2853            EffectChain* pEffectChain =
2854                _getSendEffectChain(pSampler, iAudioOutputDevice, iSendEffectChain);
2855            String sEffectSequence;
2856            for (int i = 0; i < pEffectChain->EffectCount(); i++) {
2857                if (i) sEffectSequence += ",";
2858                sEffectSequence += ToString(pEffectChain->GetEffect(i)->ID());
2859            }
2860            result.Add("EFFECT_COUNT", pEffectChain->EffectCount());
2861            result.Add("EFFECT_SEQUENCE", sEffectSequence);
2862        } catch (Exception e) {
2863            result.Error(e);
2864        }
2865        return result.Produce();
2866    }
2867    
2868    String LSCPServer::AppendSendEffectChainEffect(int iAudioOutputDevice, int iSendEffectChain, int iEffectInstance) {
2869        dmsg(2,("LSCPServer: AppendSendEffectChainEffect(%d,%d,%d)\n", iAudioOutputDevice, iSendEffectChain, iEffectInstance));
2870        LSCPResultSet result;
2871        try {
2872            EffectChain* pEffectChain =
2873                _getSendEffectChain(pSampler, iAudioOutputDevice, iSendEffectChain);
2874            Effect* pEffect = EffectFactory::GetEffectInstanceByID(iEffectInstance);
2875            if (!pEffect)
2876                throw Exception("There is no effect instance with ID " + ToString(iEffectInstance));
2877            pEffectChain->AppendEffect(pEffect);
2878            LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_send_fx_chain_info, iAudioOutputDevice, iSendEffectChain, pEffectChain->EffectCount()));
2879        } catch (Exception e) {
2880            result.Error(e);
2881        }
2882        return result.Produce();
2883    }
2884    
2885    String LSCPServer::InsertSendEffectChainEffect(int iAudioOutputDevice, int iSendEffectChain, int iEffectChainPosition, int iEffectInstance) {
2886        dmsg(2,("LSCPServer: InsertSendEffectChainEffect(%d,%d,%d,%d)\n", iAudioOutputDevice, iSendEffectChain, iEffectChainPosition, iEffectInstance));
2887        LSCPResultSet result;
2888        try {
2889            EffectChain* pEffectChain =
2890                _getSendEffectChain(pSampler, iAudioOutputDevice, iSendEffectChain);
2891            Effect* pEffect = EffectFactory::GetEffectInstanceByID(iEffectInstance);
2892            if (!pEffect)
2893                throw Exception("There is no effect instance with index " + ToString(iEffectInstance));
2894            pEffectChain->InsertEffect(pEffect, iEffectChainPosition);
2895            LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_send_fx_chain_info, iAudioOutputDevice, iSendEffectChain, pEffectChain->EffectCount()));
2896        } catch (Exception e) {
2897            result.Error(e);
2898        }
2899        return result.Produce();
2900    }
2901    
2902    String LSCPServer::RemoveSendEffectChainEffect(int iAudioOutputDevice, int iSendEffectChain, int iEffectChainPosition) {
2903        dmsg(2,("LSCPServer: RemoveSendEffectChainEffect(%d,%d,%d)\n", iAudioOutputDevice, iSendEffectChain, iEffectChainPosition));
2904        LSCPResultSet result;
2905        try {
2906            EffectChain* pEffectChain =
2907                _getSendEffectChain(pSampler, iAudioOutputDevice, iSendEffectChain);
2908    
2909            std::set<EngineChannel*> engineChannels = EngineChannelFactory::EngineChannelInstances();
2910            std::set<EngineChannel*>::iterator itEngineChannel = engineChannels.begin();
2911            std::set<EngineChannel*>::iterator itEnd           = engineChannels.end();
2912            for (; itEngineChannel != itEnd; ++itEngineChannel) {
2913                AudioOutputDevice* pDev = (*itEngineChannel)->GetAudioOutputDevice();
2914                if (pDev != NULL && pDev->deviceId() == iAudioOutputDevice) {
2915                    for (int i = 0; i < (*itEngineChannel)->GetFxSendCount(); i++) {
2916                        FxSend* fxs = (*itEngineChannel)->GetFxSend(i);
2917                        if(fxs != NULL && fxs->DestinationEffectChain() == iSendEffectChain && fxs->DestinationEffectChainPosition() == iEffectChainPosition) {
2918                            throw Exception("The effect instance is still in use by channel " + ToString((*itEngineChannel)->GetSamplerChannel()->Index()));
2919                        }
2920                    }
2921                }
2922            }
2923    
2924            pEffectChain->RemoveEffect(iEffectChainPosition);
2925            LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_send_fx_chain_info, iAudioOutputDevice, iSendEffectChain, pEffectChain->EffectCount()));
2926        } catch (Exception e) {
2927            result.Error(e);
2928        }
2929        return result.Produce();
2930    }
2931    
2932  String LSCPServer::EditSamplerChannelInstrument(uint uiSamplerChannel) {  String LSCPServer::EditSamplerChannelInstrument(uint uiSamplerChannel) {
2933      dmsg(2,("LSCPServer: EditSamplerChannelInstrument(SamplerChannel=%d)\n", uiSamplerChannel));      dmsg(2,("LSCPServer: EditSamplerChannelInstrument(SamplerChannel=%d)\n", uiSamplerChannel));
2934      LSCPResultSet result;      LSCPResultSet result;
# Line 2497  String LSCPServer::SendChannelMidiData(S Line 2977  String LSCPServer::SendChannelMidiData(S
2977              pMidiDevice->SendNoteOffToDevice(Arg1, Arg2);              pMidiDevice->SendNoteOffToDevice(Arg1, Arg2);
2978              bool b = pMidiDevice->SendNoteOffToSampler(Arg1, Arg2);              bool b = pMidiDevice->SendNoteOffToSampler(Arg1, Arg2);
2979              if (!b) throw Exception("MIDI event failed: " + MidiMsg + " " + ToString(Arg1) + " " + ToString(Arg2));              if (!b) throw Exception("MIDI event failed: " + MidiMsg + " " + ToString(Arg1) + " " + ToString(Arg2));
2980            } else if (MidiMsg == "CC") {
2981                pMidiDevice->SendCCToDevice(Arg1, Arg2);
2982                bool b = pMidiDevice->SendCCToSampler(Arg1, Arg2);
2983                if (!b) throw Exception("MIDI event failed: " + MidiMsg + " " + ToString(Arg1) + " " + ToString(Arg2));
2984          } else {          } else {
2985              throw Exception("Unknown MIDI message type: " + MidiMsg);              throw Exception("Unknown MIDI message type: " + MidiMsg);
2986          }          }
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