Marsyas
0.6.0-alpha
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00001 /* 00002 ** Copyright (C) 1998-2006 George Tzanetakis <gtzan@cs.uvic.ca> 00003 ** 00004 ** This program is free software; you can redistribute it and/or modify 00005 ** it under the terms of the GNU General Public License as published by 00006 ** the Free Software Foundation; either version 2 of the License, or 00007 ** (at your option) any later version. 00008 ** 00009 ** This program is distributed in the hope that it will be useful, 00010 ** but WITHOUT ANY WARRANTY; without even the implied warranty of 00011 ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00012 ** GNU General Public License for more details. 00013 ** 00014 ** You should have received a copy of the GNU General Public License 00015 ** along with this program; if not, write to the Free Software 00016 ** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. 00017 */ 00018 00019 00020 #include "MidiInput.h" 00021 #include "../common_source.h" 00022 00023 #ifdef MARSYAS_MIDIIO 00024 #include "RtMidi.h" 00025 #endif 00026 00027 #include <cstddef> 00028 00029 using std::ostringstream; 00030 using std::size_t; 00031 using namespace Marsyas; 00032 00033 MidiInput::MidiInput(mrs_string name):MarSystem("MidiInput",name) 00034 { 00035 initMidi = false; 00036 #ifdef MARSYAS_MIDIIO 00037 midiin = NULL; 00038 #endif 00039 addControls(); 00040 } 00041 00042 MidiInput::MidiInput(const MidiInput& a): MarSystem(a) 00043 { 00044 ctrl_byte1_ = getctrl("mrs_natural/byte1"); 00045 ctrl_byte2_ = getctrl("mrs_natural/byte2"); 00046 ctrl_byte3_ = getctrl("mrs_natural/byte3"); 00047 } 00048 00049 MidiInput::~MidiInput() 00050 { 00051 #ifdef MARSYAS_MIDIIO 00052 delete midiin; 00053 #endif 00054 } 00055 00056 MarSystem* MidiInput::clone() const 00057 { 00058 return new MidiInput(*this); 00059 } 00060 00061 void MidiInput::addControls() 00062 { 00063 addctrl("mrs_natural/port", 0); 00064 addctrl("mrs_bool/virtualPort", false); 00065 addctrl("mrs_bool/initmidi", false); 00066 setctrlState("mrs_bool/initmidi", true); 00067 addctrl("mrs_natural/byte1", 0, ctrl_byte1_); 00068 addctrl("mrs_natural/byte2", 0, ctrl_byte2_); 00069 addctrl("mrs_natural/byte3", 0, ctrl_byte3_); 00070 } 00071 00072 void MidiInput::myUpdate(MarControlPtr sender) 00073 { 00074 MRSDIAG("MidiInput.cpp - MidiInput:myUpdate"); 00075 MarSystem::myUpdate(sender); 00076 00077 #ifdef MARSYAS_MIDIIO 00078 midiin = NULL; 00079 00080 initMidi= getctrl("mrs_bool/initmidi")->to<mrs_bool>(); 00081 initMidi = !initMidi; 00082 00083 virtualPort = getctrl("mrs_bool/virtualPort")->to<mrs_bool>(); 00084 00085 if (!initMidi) { 00086 try { 00087 midiin = new RtMidiIn(); 00088 } 00089 catch (RtError &error) { 00090 error.printMessage(); 00091 return; 00092 } 00093 midiin->setCallback(&MidiInput::mycallback, this); 00094 midiin->ignoreTypes(false, false, false); 00095 setctrl("mrs_bool/initmidi", false); 00096 00097 if (virtualPort) 00098 { 00099 try { 00100 midiin->openVirtualPort("MarsyasInput"); 00101 } 00102 catch (RtError &error) 00103 { 00104 error.printMessage(); 00105 return; 00106 } 00107 } 00108 else 00109 { 00110 try { 00111 midiin->openPort(getctrl("mrs_natural/port")->to<mrs_natural>()); 00112 } 00113 catch (RtError &error) 00114 { 00115 error.printMessage(); 00116 return; 00117 } 00118 } 00119 } 00120 00121 #endif 00122 } 00123 00124 void MidiInput::mycallback(double deltatime, std::vector< unsigned char > * message, void *userData) 00125 { 00126 // FIXME Unused parameter 00127 (void) deltatime; 00128 std::size_t nBytes = 0; 00129 nBytes = message->size(); 00130 00131 MidiInput* mythis = (MidiInput*) userData; 00132 std::vector<int> v(3); 00133 00134 if (nBytes > 0) 00135 { 00136 if (nBytes > 2) 00137 { 00138 v[0] = message->at(0); 00139 v[1] = message->at(1); 00140 v[2] = message->at(2); 00141 mythis->msgQueue.push(v); 00142 } 00143 } 00144 } 00145 00146 void MidiInput::myProcess(realvec& in, realvec& out) 00147 { 00148 mrs_natural t,o; 00149 std::vector<int> *v; 00150 // just pass data through 00151 for (o=0; o < inObservations_; o++) 00152 { 00153 for (t = 0; t < inSamples_; t++) 00154 { 00155 out(o,t) = in(o,t); 00156 } 00157 } 00158 if (!msgQueue.empty()) { 00159 v = new std::vector<int>(msgQueue.front()); 00160 msgQueue.pop(); 00161 ctrl_byte1_->setValue((mrs_natural)v->at(0), NOUPDATE); 00162 ctrl_byte2_->setValue((mrs_natural)v->at(1), NOUPDATE); 00163 ctrl_byte3_->setValue((mrs_natural)v->at(2), NOUPDATE); 00164 delete v; 00165 } 00166 }