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/*************************************************************************** |
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* * |
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* Copyright (C) 2008 - 2009 Andreas Persson * |
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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., 51 Franklin St, Fifth Floor, Boston, * |
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* MA 02110-1301 USA * |
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***************************************************************************/ |
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|
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#include <limits> |
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#include <sstream> |
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|
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#include "Plugin.h" |
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#include "audio/AudioOutputDeviceFactory.h" |
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#include "midi/MidiInputDeviceFactory.h" |
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|
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namespace LinuxSampler { |
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|
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// *************** PluginGlobal *************** |
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// * |
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|
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PluginGlobal::PluginGlobal() : |
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RefCount(0) { |
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// we need to remove the ASIO driver, otherwise the lscp info |
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// methods will lock up the audio device |
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AudioOutputDeviceFactory::Unregister("ASIO"); |
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|
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REGISTER_AUDIO_OUTPUT_DRIVER(AudioOutputDevicePlugin); |
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REGISTER_AUDIO_OUTPUT_DRIVER_PARAMETER(AudioOutputDevicePlugin, ParameterActive); |
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REGISTER_AUDIO_OUTPUT_DRIVER_PARAMETER(AudioOutputDevicePlugin, ParameterSampleRate); |
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REGISTER_AUDIO_OUTPUT_DRIVER_PARAMETER(AudioOutputDevicePlugin, ParameterChannelsPlugin); |
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REGISTER_AUDIO_OUTPUT_DRIVER_PARAMETER(AudioOutputDevicePlugin, ParameterFragmentSize); |
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|
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REGISTER_MIDI_INPUT_DRIVER(MidiInputDevicePlugin); |
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REGISTER_MIDI_INPUT_DRIVER_PARAMETER(MidiInputDevicePlugin, ParameterActive); |
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REGISTER_MIDI_INPUT_DRIVER_PARAMETER(MidiInputDevicePlugin, ParameterPortsPlugin); |
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|
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pSampler = new Sampler; |
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|
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// using LOOPBACK instead of ANY to prevent windows firewall |
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// warnings |
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pLSCPServer = new LSCPServer(pSampler, htonl(INADDR_LOOPBACK), |
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htons(LSCP_PORT)); |
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pLSCPServer->StartThread(); |
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pLSCPServer->WaitUntilInitialized(); |
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|
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pEventThread = new EventThread(pSampler); |
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pEventThread->StartThread(); |
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} |
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|
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|
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PluginGlobal::~PluginGlobal() { |
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pEventThread->StopThread(); |
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pLSCPServer->StopThread(); |
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pLSCPServer->RemoveListeners(); |
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|
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delete pEventThread; |
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delete pSampler; |
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delete pLSCPServer; |
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} |
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|
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|
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// *************** EventThread *************** |
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// * |
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|
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|
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EventThread::EventThread(Sampler* pSampler) : |
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Thread(false, false, 0, 0), |
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pSampler(pSampler) { |
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} |
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|
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int EventThread::Main() { |
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for (;;) { |
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sleep(1); |
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pSampler->fireStatistics(); |
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} |
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return 0; |
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} |
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|
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|
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// *************** Plugin *************** |
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// * |
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|
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PluginGlobal* Plugin::global = 0; |
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|
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Plugin::Plugin(bool bDoPreInit) : |
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pAudioDevice(0), |
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pMidiDevice(0) { |
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bPreInitDone = false; |
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if (bDoPreInit) PreInit(); |
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} |
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|
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void Plugin::PreInit() { |
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if (bPreInitDone) return; |
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|
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bPreInitDone = true; |
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if (!global) { |
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global = new PluginGlobal; |
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} |
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global->RefCount++; |
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} |
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|
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void Plugin::Init(int SampleRate, int FragmentSize, int Channels) { |
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if (pAudioDevice && SampleRate == pAudioDevice->SampleRate() && |
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FragmentSize == pAudioDevice->MaxSamplesPerCycle()) { |
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return; // nothing has changed |
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} |
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|
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String oldState; |
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if (pAudioDevice) { |
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oldState = GetState(); |
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RemoveChannels(); |
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global->pSampler->DestroyAudioOutputDevice(pAudioDevice); |
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} |
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std::map<String, String> params; |
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params["SAMPLERATE"] = ToString(SampleRate); |
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params["FRAGMENTSIZE"] = ToString(FragmentSize); |
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if (Channels > 0) params["CHANNELS"] = ToString(Channels); |
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pAudioDevice = dynamic_cast<AudioOutputDevicePlugin*>( |
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global->pSampler->CreateAudioOutputDevice(AudioOutputDevicePlugin::Name(), params)); |
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|
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if (!pMidiDevice) { |
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pMidiDevice = dynamic_cast<MidiInputDevicePlugin*>( |
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global->pSampler->CreateMidiInputDevice(MidiInputDevicePlugin::Name(), |
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std::map<String,String>())); |
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} |
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|
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if (!oldState.empty()) { |
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SetState(oldState); |
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} |
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} |
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|
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Plugin::~Plugin() { |
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RemoveChannels(); |
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if (pAudioDevice) global->pSampler->DestroyAudioOutputDevice(pAudioDevice); |
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if (pMidiDevice) global->pSampler->DestroyMidiInputDevice(pMidiDevice); |
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if (bPreInitDone) { |
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if (--global->RefCount == 0) { |
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delete global; |
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global = 0; |
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} |
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} |
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} |
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|
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void Plugin::InitState() { |
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SamplerChannel* channel = global->pSampler->AddSamplerChannel(); |
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channel->SetEngineType("gig"); |
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channel->SetAudioOutputDevice(pAudioDevice); |
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channel->SetMidiInputDevice(pMidiDevice); |
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channel->SetMidiInputChannel(midi_chan_1); |
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} |
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|
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/* |
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The sampler state is stored in a text base format, designed to |
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be easy to parse with the istream >> operator. Values are |
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separated by spaces or newlines. All string values that may |
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contain spaces end with a newline. |
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|
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The first line contains the global volume. |
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|
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The rest of the lines have an integer first representing the |
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type of information on the line, except for the two lines that |
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describe each sampler channel. The first of these two starts |
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with an integer from 0 to 16 (the midi channel for the sampler |
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channel). |
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|
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Note that we should try to keep the parsing of this format both |
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backwards and forwards compatible between versions. The parser |
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ignores lines with unknown type integers and accepts that new |
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types are missing. |
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*/ |
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|
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enum { |
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FXSEND = 17, |
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MIDIMAP, |
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MIDIMAPPING, |
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DEFAULTMIDIMAP |
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}; |
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|
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String Plugin::GetState() { |
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std::stringstream s; |
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|
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s << GLOBAL_VOLUME << '\n'; |
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|
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std::vector<int> maps = MidiInstrumentMapper::Maps(); |
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for (int i = 0 ; i < maps.size() ; i++) { |
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s << MIDIMAP << ' ' << |
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maps[i] << ' ' << |
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MidiInstrumentMapper::MapName(maps[i]) << '\n'; |
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|
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std::map<midi_prog_index_t, MidiInstrumentMapper::entry_t> mappings = MidiInstrumentMapper::Entries(maps[i]); |
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for (std::map<midi_prog_index_t, MidiInstrumentMapper::entry_t>::iterator iter = mappings.begin() ; |
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iter != mappings.end(); iter++) { |
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s << MIDIMAPPING << ' ' << |
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((int(iter->first.midi_bank_msb) << 7) | |
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int(iter->first.midi_bank_lsb)) << ' ' << |
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int(iter->first.midi_prog) << ' ' << |
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iter->second.EngineName << ' ' << |
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iter->second.InstrumentFile << '\n' << |
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MIDIMAPPING << ' ' << |
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iter->second.InstrumentIndex << ' ' << |
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iter->second.Volume << ' ' << |
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iter->second.LoadMode << ' ' << |
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iter->second.Name << '\n'; |
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} |
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} |
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if (maps.size()) { |
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s << DEFAULTMIDIMAP << ' ' << |
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MidiInstrumentMapper::GetDefaultMap() << '\n'; |
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} |
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|
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std::map<uint, SamplerChannel*> channels = global->pSampler->GetSamplerChannels(); |
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for (std::map<uint, SamplerChannel*>::iterator iter = channels.begin() ; |
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iter != channels.end() ; iter++) { |
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SamplerChannel* channel = iter->second; |
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if (channel->GetAudioOutputDevice() == pAudioDevice) { |
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EngineChannel* engine_channel = channel->GetEngineChannel(); |
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String filename = engine_channel->InstrumentFileName(); |
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s << channel->GetMidiInputChannel() << ' ' << |
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engine_channel->Volume() << ' ' << |
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filename << '\n' << |
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engine_channel->InstrumentIndex() << ' ' << |
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engine_channel->GetSolo() << ' ' << |
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(engine_channel->GetMute() == 1) << ' ' << |
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engine_channel->OutputChannel(0) << ' ' << |
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engine_channel->OutputChannel(1) << ' ' << |
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(engine_channel->UsesNoMidiInstrumentMap() ? -2 : |
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(engine_channel->UsesDefaultMidiInstrumentMap() ? -1 : |
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engine_channel->GetMidiInstrumentMap())) << '\n'; |
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|
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for (int i = 0 ; i < engine_channel->GetFxSendCount() ; i++) { |
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FxSend* fxsend = engine_channel->GetFxSend(i); |
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s << FXSEND << ' ' << |
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fxsend->Level() << ' ' << |
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int(fxsend->MidiController()) << ' ' << |
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fxsend->DestinationChannel(0) << ' ' << |
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fxsend->DestinationChannel(1) << ' ' << |
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fxsend->Name() << '\n'; |
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} |
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} |
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} |
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return s.str(); |
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} |
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|
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void Plugin::RemoveChannels() { |
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if(global == NULL) return; |
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|
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std::map<uint, SamplerChannel*> channels = global->pSampler->GetSamplerChannels(); |
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for (std::map<uint, SamplerChannel*>::iterator iter = channels.begin() ; |
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iter != channels.end() ; iter++) { |
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if (iter->second->GetAudioOutputDevice() == pAudioDevice) { |
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global->pSampler->RemoveSamplerChannel(iter->second); |
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} |
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} |
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} |
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bool Plugin::SetState(String State) { |
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RemoveChannels(); |
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MidiInstrumentMapper::RemoveAllMaps(); |
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|
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std::stringstream s(State); |
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s >> GLOBAL_VOLUME; |
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|
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EngineChannel* engine_channel; |
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int midiMapId; |
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std::map<int, int> oldToNewId; |
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int type; |
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while (s >> type) { |
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|
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if (type <= 16) { // sampler channel |
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int midiChannel = type; |
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float volume; |
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s >> volume; |
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s.ignore(); |
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String filename; |
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std::getline(s, filename); |
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int index; |
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bool solo; |
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bool mute; |
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s >> index >> solo >> mute; |
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|
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SamplerChannel* channel = global->pSampler->AddSamplerChannel(); |
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channel->SetEngineType("gig"); |
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channel->SetAudioOutputDevice(pAudioDevice); |
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channel->SetMidiInputDevice(pMidiDevice); |
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channel->SetMidiInputChannel(midi_chan_t(midiChannel)); |
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|
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engine_channel = channel->GetEngineChannel(); |
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engine_channel->Volume(volume); |
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if (s.get() == ' ') { |
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int left; |
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int right; |
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int oldMapId; |
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s >> left >> right >> oldMapId; |
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engine_channel->SetOutputChannel(0, left); |
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engine_channel->SetOutputChannel(1, right); |
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|
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if (oldMapId == -1) { |
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engine_channel->SetMidiInstrumentMapToDefault(); |
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} else if (oldMapId >= 0) { |
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engine_channel->SetMidiInstrumentMap(oldToNewId[oldMapId]); |
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} |
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// skip rest of line |
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s.ignore(std::numeric_limits<int>::max(), '\n'); |
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} |
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if (!filename.empty() && index != -1) { |
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InstrumentManager::instrument_id_t id; |
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id.FileName = filename; |
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id.Index = index; |
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InstrumentManager::LoadInstrumentInBackground(id, engine_channel); |
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} |
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if (solo) engine_channel->SetSolo(solo); |
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if (mute) engine_channel->SetMute(1); |
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|
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} else if (type == FXSEND) { |
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float level; |
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int controller; |
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int fxleft; |
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int fxright; |
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String name; |
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|
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s >> level >> controller >> fxleft >> fxright; |
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s.ignore(); |
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std::getline(s, name); |
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FxSend* send = engine_channel->AddFxSend(controller, name); |
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send->SetLevel(level); |
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send->SetDestinationChannel(0, fxleft); |
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send->SetDestinationChannel(1, fxright); |
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|
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} else if (type == MIDIMAP) { |
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int oldId; |
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s >> oldId; |
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String name; |
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s.ignore(); |
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std::getline(s, name); |
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midiMapId = MidiInstrumentMapper::AddMap(name); |
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oldToNewId[oldId] = midiMapId; |
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|
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} else if (type == MIDIMAPPING) { |
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int bank; |
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int prog; |
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String engine; |
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String file; |
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int index; |
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float volume; |
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int loadmode; |
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String name; |
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|
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s >> bank >> prog >> engine; |
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s.ignore(); |
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std::getline(s, file); |
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s >> type >> index >> volume >> loadmode; |
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s.ignore(); |
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std::getline(s, name); |
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|
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global->pLSCPServer->AddOrReplaceMIDIInstrumentMapping( |
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midiMapId, bank, prog, engine, file, index, volume, |
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MidiInstrumentMapper::mode_t(loadmode), name, false); |
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|
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} else if (type == DEFAULTMIDIMAP) { |
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int oldId; |
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s >> oldId; |
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MidiInstrumentMapper::SetDefaultMap(oldToNewId[oldId]); |
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|
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} else { // unknown type |
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// try to be forward-compatible and just skip the line |
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s.ignore(std::numeric_limits<int>::max(), '\n'); |
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} |
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} |
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|
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return true; |
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} |
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} |
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