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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) 2005, 2006 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 "EngineChannel.h" |
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|
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#include <algorithm> |
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|
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#include "../drivers/midi/MidiInstrumentMapper.h" |
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|
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#define NO_MIDI_INSTRUMENT_MAP -1 |
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#define DEFAULT_MIDI_INSTRUMENT_MAP -2 |
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|
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namespace LinuxSampler { |
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|
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EngineChannel::EngineChannel() { |
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iMute = 0; |
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bSolo = false; |
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uiMidiBankMsb = 0; |
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uiMidiBankLsb = 0; |
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uiMidiProgram = 0; |
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bProgramChangeReceived = bMidiBankMsbReceived = bMidiBankLsbReceived = false; |
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iMidiInstrumentMap = NO_MIDI_INSTRUMENT_MAP; |
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} |
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|
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void EngineChannel::SetMute(int state) throw (Exception) { |
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if(iMute == state) return; |
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if(state < -1 || state > 1) |
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throw Exception("Invalid Mute state: " + ToString(state)); |
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|
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iMute = state; |
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|
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StatusChanged(true); |
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} |
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|
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int EngineChannel::GetMute() { |
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return iMute; |
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} |
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|
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void EngineChannel::SetSolo(bool solo) { |
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if(bSolo == solo) return; |
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bSolo = solo; |
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StatusChanged(true); |
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} |
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|
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bool EngineChannel::GetSolo() { |
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return bSolo; |
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} |
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|
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/* |
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We use a workaround for MIDI devices (i.e. old keyboards) which either |
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only send bank select MSB or only bank select LSB messages. Bank |
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selects will be modified according to the following table: |
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|
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MIDI Sequence received: -> GetMidiBankMsb()= | GetMidiBankLsb()= |
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--------------------------------------------------------------------------- |
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program change -> 0 | 0 |
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bank LSB, program change -> 0 | LSB value |
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bank MSB, program change -> 0 | MSB value |
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bank LSB, bank MSB, program change -> MSB value | LSB value |
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bank MSB, bank LSB, program change -> MSB value | LSB value |
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--------------------------------------------------------------------------- |
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|
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That way we ensure those limited devices always to switch between the |
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following set of MIDI instrument banks: { 0, 1, 2, ..., 127 } |
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*/ |
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|
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uint8_t EngineChannel::GetMidiProgram() { |
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return uiMidiProgram; // AFAIK atomic on all systems |
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} |
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|
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void EngineChannel::SetMidiProgram(uint8_t Program) { |
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bProgramChangeReceived = true; |
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uiMidiProgram = Program; // AFAIK atomic on all systems |
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} |
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|
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uint8_t EngineChannel::GetMidiBankMsb() { |
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return (bMidiBankMsbReceived && bMidiBankLsbReceived) ? uiMidiBankMsb : 0; |
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} |
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|
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void EngineChannel::SetMidiBankMsb(uint8_t BankMSB) { |
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if (bProgramChangeReceived) |
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bProgramChangeReceived = bMidiBankLsbReceived = false; |
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bMidiBankMsbReceived = true; |
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uiMidiBankMsb = BankMSB; // AFAIK atomic on all systems |
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} |
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|
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uint8_t EngineChannel::GetMidiBankLsb() { |
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return (!bMidiBankMsbReceived && !bMidiBankLsbReceived) |
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? 0 |
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: (bMidiBankMsbReceived && !bMidiBankLsbReceived) |
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? uiMidiBankMsb |
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: uiMidiBankLsb; |
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} |
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|
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void EngineChannel::SetMidiBankLsb(uint8_t BankLSB) { |
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if (bProgramChangeReceived) |
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bProgramChangeReceived = bMidiBankMsbReceived = false; |
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bMidiBankLsbReceived = true; |
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uiMidiBankLsb = BankLSB; // AFAIK atomic on all systems |
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} |
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|
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bool EngineChannel::UsesNoMidiInstrumentMap() { |
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return (iMidiInstrumentMap == NO_MIDI_INSTRUMENT_MAP); |
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} |
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|
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bool EngineChannel::UsesDefaultMidiInstrumentMap() { |
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return (iMidiInstrumentMap == DEFAULT_MIDI_INSTRUMENT_MAP); |
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} |
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|
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int EngineChannel::GetMidiInstrumentMap() throw (Exception) { |
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if (UsesNoMidiInstrumentMap()) |
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throw Exception("EngineChannel is using no MIDI instrument map"); |
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if (UsesDefaultMidiInstrumentMap()) |
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throw Exception("EngineChannel is using default MIDI instrument map"); |
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// check if the stored map still exists in the MIDI instrument mapper |
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std::vector<int> maps = MidiInstrumentMapper::Maps(); |
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if (find(maps.begin(), maps.end(), iMidiInstrumentMap) == maps.end()) { |
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// it doesn't exist anymore, so fall back to NONE and throw an exception |
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iMidiInstrumentMap = NO_MIDI_INSTRUMENT_MAP; |
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throw Exception("Assigned MIDI instrument map doesn't exist anymore, falling back to NONE"); |
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} |
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return iMidiInstrumentMap; |
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} |
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|
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void EngineChannel::SetMidiInstrumentMapToNone() { |
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iMidiInstrumentMap = NO_MIDI_INSTRUMENT_MAP; |
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} |
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|
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void EngineChannel::SetMidiInstrumentMapToDefault() { |
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iMidiInstrumentMap = DEFAULT_MIDI_INSTRUMENT_MAP; |
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} |
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|
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void EngineChannel::SetMidiInstrumentMap(int MidiMap) throw (Exception) { |
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// check if given map actually exists in the MIDI instrument mapper |
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std::vector<int> maps = MidiInstrumentMapper::Maps(); |
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if (find(maps.begin(), maps.end(), MidiMap) == maps.end()) |
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throw Exception("MIDI instrument map doesn't exist"); |
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iMidiInstrumentMap = MidiMap; // assign the new map ID |
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} |
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|
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} // namespace LinuxSampler |