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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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* Copyright (C) 2004 Grame * |
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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 "MidiInputDeviceMidiShare.h" |
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|
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namespace LinuxSampler { |
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|
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#define MSHSlotName "LinuxSampler" |
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#define MSHDriverName "LinuxSampler" |
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|
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#define MidiShareDrvRef 127 |
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|
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/** |
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* Create MidiShare input device for LinuxSampler. |
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* |
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* @param AutoConnectPortID - (optional) Alsa client and port ID of a |
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* MIDI source we should auto connect to |
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* (e.g. "64:0") |
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* @throws MidiInputException if initialization failed |
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*/ |
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MidiInputDeviceMidiShare::MidiInputDeviceMidiShare(char* AutoConnectPortID) : MidiInputDevice(MidiInputDevice::type_midishare) |
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{ |
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if (!MidiShare()) |
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throw MidiInputException("MidiShare not installed"); |
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|
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#if defined(MIDISHARE_DRIVER) |
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OpenDriver(); |
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#else |
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OpenAppl(); |
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#endif |
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|
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hMidiFilter = MidiNewFilter(); |
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|
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if (hMidiFilter == 0) { |
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MidiClose(hRefnum); |
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throw MidiInputException("MidiShare filter can not be allocated"); |
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} |
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|
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for (int i = 0 ; i < 256; i++) { |
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MidiAcceptPort(hMidiFilter, i, 1); /* accept all ports */ |
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MidiAcceptType(hMidiFilter, i, 0); /* reject all types */ |
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} |
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|
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for (int i = 0 ; i < 16; i++) { |
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MidiAcceptChan(hMidiFilter, i, 1); /* accept all chan */ |
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} |
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/* accept only the following types */ |
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MidiAcceptType(hMidiFilter, typeNote, 1); |
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MidiAcceptType(hMidiFilter, typeKeyOn, 1); |
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MidiAcceptType(hMidiFilter, typeKeyOff, 1); |
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MidiAcceptType(hMidiFilter, typeCtrlChange, 1); |
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//MidiAcceptType(hMidiFilter, typeProgChange, 1); |
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MidiAcceptType(hMidiFilter, typePitchWheel, 1); |
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|
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/* set the filter */ |
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MidiSetFilter(hRefnum, hMidiFilter); |
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|
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MidiSetRcvAlarm(hRefnum,ReceiveEvents); |
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MidiSetApplAlarm(hRefnum,ApplAlarm); |
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MidiSetInfo(hRefnum,this); |
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MidiConnect(0,hRefnum,true); |
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} |
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|
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|
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MidiInputDeviceMidiShare::~MidiInputDeviceMidiShare() |
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{ |
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#if defined(MIDISHARE_DRIVER) |
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CloseDriver(); |
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#else |
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CloseAppl(); |
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#endif |
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MidiFreeFilter(hMidiFilter); |
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} |
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|
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void MidiInputDeviceMidiShare::OpenAppl() |
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{ |
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hRefnum = MidiOpen(MSHDriverName); |
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if (hRefnum < 0) { |
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throw MidiInputException("MidiShare client can not be opened"); |
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} |
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MidiSetRcvAlarm(hRefnum,ReceiveEvents); |
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MidiSetApplAlarm(hRefnum,ApplAlarm); |
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} |
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|
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void MidiInputDeviceMidiShare::CloseAppl() |
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{ |
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MidiClose(hRefnum); |
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} |
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|
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void MidiInputDeviceMidiShare::OpenDriver() |
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{ |
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/* gcc wanted me to use {0,0} to initialize the reserved[2] fields */ |
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TDriverInfos infos = { MSHDriverName, 100, 0, { 0, 0 } }; |
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TDriverOperation op = { WakeUp, Sleep, { 0, 0, 0 } }; |
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hRefnum = MidiRegisterDriver(&infos, &op); |
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if (hRefnum < 0) { |
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throw MidiInputException("MidiShare driver can not be opened"); |
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} |
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hSlotRef = MidiAddSlot(hRefnum,MSHSlotName,MidiOutputSlot); |
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MidiSetRcvAlarm(hRefnum,ReceiveEvents); |
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} |
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|
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void MidiInputDeviceMidiShare::CloseDriver() |
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{ |
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MidiUnregisterDriver(hRefnum); |
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} |
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|
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void MidiInputDeviceMidiShare::WakeUp(short r) |
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{ |
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MidiConnect(MidiShareDrvRef, r, true); |
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MidiConnect(r, MidiShareDrvRef, true); |
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} |
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|
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void MidiInputDeviceMidiShare::Sleep(short r){} |
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|
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|
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void MidiInputDeviceMidiShare::SetInputPort(const char * MidiSource) |
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{ |
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|
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} |
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|
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void MidiInputDeviceMidiShare::ApplAlarm(short ref, long code) |
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{ |
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|
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} |
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|
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void MidiInputDeviceMidiShare::KeyOffTask(long date, short ref, long a1, long a2, long a3) |
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{ |
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MidiInputDeviceMidiShare* driver = (MidiInputDeviceMidiShare*)MidiGetInfo(ref); |
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MidiEvPtr ev =(MidiEvPtr)a1; |
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driver->DispatchNoteOn(Pitch(ev),Vel(ev),Chan(ev)); |
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MidiFreeEv(ev); |
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} |
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|
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void MidiInputDeviceMidiShare::ReceiveEvents(short ref) |
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{ |
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MidiInputDeviceMidiShare* driver = (MidiInputDeviceMidiShare*)MidiGetInfo(ref); |
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MidiEvPtr ev; |
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|
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while ((ev = MidiGetEv(ref))) |
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|
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switch(EvType(ev)) { |
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|
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case typeCtrlChange: |
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if (MidiGetField(ev,0) == 0) |
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driver->DispatchBankSelectMsb(MidiGetField(ev,0),Chan(ev)); |
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else if (MidiGetField(ev,0) == 32) |
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driver->DispatchBankSelectLsb(MidiGetField(ev,0),Chan(ev)); |
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else |
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driver->DispatchControlChange(MidiGetField(ev,0),MidiGetField(ev,0),Chan(ev)); |
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MidiFreeEv(ev); |
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break; |
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|
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case typePitchWheel: |
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driver->DispatchPitchbend(((MidiGetField(ev,0)+(MidiGetField(ev,1) << 7)) - 8192),Chan(ev)); |
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MidiFreeEv(ev); |
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break; |
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|
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case typeNote: |
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driver->DispatchNoteOn(Pitch(ev),Vel(ev),Chan(ev)); |
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MidiTask(KeyOffTask,Date(ev)+Dur(ev),ref,(long)ev,0,0); |
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break; |
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|
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case typeKeyOn: |
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if (Vel(ev) > 0) |
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driver->DispatchNoteOn(Pitch(ev),Vel(ev),Chan(ev)); |
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else |
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driver->DispatchNoteOff(Pitch(ev),Vel(ev),Chan(ev)); |
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MidiFreeEv(ev); |
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break; |
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|
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case typeKeyOff: |
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driver->DispatchNoteOff(Pitch(ev),Vel(ev),Chan(ev)); |
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MidiFreeEv(ev); |
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break; |
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} |
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} |
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|
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|
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} // namespace LinuxSampler |
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