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// qsamplerChannel.cpp |
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// |
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/**************************************************************************** |
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Copyright (C) 2003-2005, rncbc aka Rui Nuno Capela. All rights reserved. |
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|
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This program is free software; you can redistribute it and/or |
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modify it under the terms of the GNU General Public License |
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as published by the Free Software Foundation; either version 2 |
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of the License, or (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, MA 02111-1307, USA. |
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|
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*****************************************************************************/ |
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|
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#include "qsamplerChannel.h" |
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|
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#include "qsamplerMainForm.h" |
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#include "qsamplerChannelForm.h" |
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|
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#include "config.h" |
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|
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#include <qfileinfo.h> |
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|
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#ifdef CONFIG_LIBGIG |
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#include "gig.h" |
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#endif |
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|
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#define QSAMPLER_INSTRUMENT_MAX 8 |
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|
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|
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//------------------------------------------------------------------------- |
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// qsamplerChannel - Sampler channel structure. |
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// |
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|
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// Constructor. |
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qsamplerChannel::qsamplerChannel ( qsamplerMainForm *pMainForm, int iChannelID ) |
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{ |
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m_pMainForm = pMainForm; |
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m_iChannelID = iChannelID; |
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|
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// m_sEngineName = noEngineName(); |
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// m_sInstrumentName = noInstrumentName(); |
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// m_sInstrumentFile = m_sInstrumentName; |
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m_iInstrumentNr = -1; |
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m_iInstrumentStatus = -1; |
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m_sMidiDriver = "ALSA"; |
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m_iMidiDevice = -1; |
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m_iMidiPort = -1; |
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m_iMidiChannel = -1; |
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m_sAudioDriver = "ALSA"; |
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m_iAudioDevice = -1; |
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m_fVolume = 0.0; |
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|
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} |
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|
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// Default destructor. |
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qsamplerChannel::~qsamplerChannel (void) |
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{ |
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} |
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|
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|
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// Main application form accessor. |
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qsamplerMainForm *qsamplerChannel::mainForm(void) const |
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{ |
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return m_pMainForm; |
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} |
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|
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|
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// The global options settings delegated property. |
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qsamplerOptions *qsamplerChannel::options (void) const |
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{ |
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if (m_pMainForm == NULL) |
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return NULL; |
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|
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return m_pMainForm->options(); |
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} |
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|
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|
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// The client descriptor delegated property. |
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lscp_client_t *qsamplerChannel::client (void) const |
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{ |
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if (m_pMainForm == NULL) |
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return NULL; |
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|
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return m_pMainForm->client(); |
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} |
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|
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|
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// Create a new sampler channel, if not already. |
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bool qsamplerChannel::addChannel (void) |
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{ |
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if (client() == NULL) |
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return false; |
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|
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// Are we a new channel? |
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if (m_iChannelID < 0) { |
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m_iChannelID = ::lscp_add_channel(client()); |
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if (m_iChannelID < 0) { |
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appendMessagesClient("lscp_add_channel"); |
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appendMessagesError(QObject::tr("Could not add channel.\n\nSorry.")); |
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} // Otherwise it's created... |
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else appendMessages(QObject::tr("added.")); |
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} |
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|
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// Return whether we're a valid channel... |
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return (m_iChannelID >= 0); |
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} |
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|
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|
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// Remove sampler channel. |
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bool qsamplerChannel::removeChannel (void) |
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{ |
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if (client() == NULL) |
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return false; |
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|
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// Are we an existing channel? |
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if (m_iChannelID >= 0) { |
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if (::lscp_remove_channel(client(), m_iChannelID) != LSCP_OK) { |
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appendMessagesClient("lscp_remove_channel"); |
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appendMessagesError(QObject::tr("Could not remove channel.\n\nSorry.")); |
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} else { |
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// Otherwise it's removed. |
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appendMessages(QObject::tr("removed.")); |
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m_iChannelID = -1; |
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} |
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} |
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|
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// Return whether we've removed the channel... |
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return (m_iChannelID < 0); |
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} |
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|
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|
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// Channel-ID (aka Sammpler-Channel) accessors. |
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int qsamplerChannel::channelID (void) const |
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{ |
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return m_iChannelID; |
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} |
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|
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void qsamplerChannel::setChannelID ( int iChannelID ) |
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{ |
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m_iChannelID = iChannelID; |
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} |
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|
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|
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// Readable channel name. |
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QString qsamplerChannel::channelName (void) const |
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{ |
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return (m_iChannelID < 0 ? QObject::tr("New Channel") : QObject::tr("Channel %1").arg(m_iChannelID)); |
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} |
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|
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|
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// Engine name accessors. |
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const QString& qsamplerChannel::engineName (void) const |
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{ |
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return m_sEngineName; |
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} |
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|
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bool qsamplerChannel::loadEngine ( const QString& sEngineName ) |
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{ |
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if (client() == NULL || m_iChannelID < 0) |
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return false; |
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if (m_iInstrumentStatus == 100 && m_sEngineName == sEngineName) |
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return true; |
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|
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if (::lscp_load_engine(client(), sEngineName.latin1(), m_iChannelID) != LSCP_OK) { |
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appendMessagesClient("lscp_load_engine"); |
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return false; |
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} |
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appendMessages(QObject::tr("Engine: %1.").arg(sEngineName)); |
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|
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m_sEngineName = sEngineName; |
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return true; |
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} |
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|
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|
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// Instrument filename accessor. |
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const QString& qsamplerChannel::instrumentFile (void) const |
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{ |
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return m_sInstrumentFile; |
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} |
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|
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// Instrument index accessor. |
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int qsamplerChannel::instrumentNr (void) const |
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{ |
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return m_iInstrumentNr; |
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} |
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|
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// Instrument name accessor. |
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const QString& qsamplerChannel::instrumentName (void) const |
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{ |
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return m_sInstrumentName; |
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} |
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|
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// Instrument status accessor. |
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int qsamplerChannel::instrumentStatus (void) const |
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{ |
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return m_iInstrumentStatus; |
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} |
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|
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// Instrument file loader. |
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bool qsamplerChannel::loadInstrument ( const QString& sInstrumentFile, int iInstrumentNr ) |
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{ |
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if (client() == NULL || m_iChannelID < 0) |
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return false; |
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if (!isInstrumentFile(sInstrumentFile)) |
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return false; |
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if (m_iInstrumentStatus == 100 && m_sInstrumentFile == sInstrumentFile && m_iInstrumentNr == iInstrumentNr) |
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return true; |
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|
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if (::lscp_load_instrument_non_modal(client(), sInstrumentFile.latin1(), iInstrumentNr, m_iChannelID) != LSCP_OK) { |
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appendMessagesClient("lscp_load_instrument"); |
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return false; |
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} |
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|
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appendMessages(QObject::tr("Instrument: \"%1\" (%2).") |
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.arg(sInstrumentFile).arg(iInstrumentNr)); |
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|
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return setInstrument(sInstrumentFile, iInstrumentNr); |
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} |
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|
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|
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// Special instrument file/name/number settler. |
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bool qsamplerChannel::setInstrument ( const QString& sInstrumentFile, int iInstrumentNr ) |
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{ |
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m_sInstrumentFile = sInstrumentFile; |
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m_iInstrumentNr = iInstrumentNr; |
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#ifdef CONFIG_INSTRUMENT_NAME |
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m_sInstrumentName = QString::null; // We'll get it, maybe later, on channel_info... |
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#else |
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m_sInstrumentName = getInstrumentName(sInstrumentFile, iInstrumentNr, true); |
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#endif |
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m_iInstrumentStatus = 0; |
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|
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return true; |
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} |
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|
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|
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// MIDI driver type accessors (DEPRECATED). |
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const QString& qsamplerChannel::midiDriver (void) const |
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{ |
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return m_sMidiDriver; |
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} |
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|
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bool qsamplerChannel::setMidiDriver ( const QString& sMidiDriver ) |
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{ |
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if (client() == NULL || m_iChannelID < 0) |
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return false; |
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if (m_iInstrumentStatus == 100 && m_sMidiDriver == sMidiDriver) |
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return true; |
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|
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if (::lscp_set_channel_midi_type(client(), m_iChannelID, sMidiDriver.latin1()) != LSCP_OK) { |
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appendMessagesClient("lscp_set_channel_midi_type"); |
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return false; |
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} |
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|
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appendMessages(QObject::tr("MIDI driver: %1.").arg(sMidiDriver)); |
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|
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m_sMidiDriver = sMidiDriver; |
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return true; |
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} |
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|
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|
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// MIDI device accessors. |
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int qsamplerChannel::midiDevice (void) const |
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{ |
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return m_iMidiDevice; |
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} |
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|
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bool qsamplerChannel::setMidiDevice ( int iMidiDevice ) |
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{ |
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if (client() == NULL || m_iChannelID < 0) |
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return false; |
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if (m_iInstrumentStatus == 100 && m_iMidiDevice == iMidiDevice) |
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return true; |
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|
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if (::lscp_set_channel_midi_device(client(), m_iChannelID, iMidiDevice) != LSCP_OK) { |
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appendMessagesClient("lscp_set_channel_midi_device"); |
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return false; |
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} |
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|
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appendMessages(QObject::tr("MIDI device: %1.").arg(iMidiDevice)); |
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|
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m_iMidiDevice = iMidiDevice; |
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return true; |
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} |
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|
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|
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// MIDI port number accessor. |
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int qsamplerChannel::midiPort (void) const |
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{ |
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return m_iMidiPort; |
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} |
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|
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bool qsamplerChannel::setMidiPort ( int iMidiPort ) |
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{ |
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if (client() == NULL || m_iChannelID < 0) |
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return false; |
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if (m_iInstrumentStatus == 100 && m_iMidiPort == iMidiPort) |
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return true; |
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|
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if (::lscp_set_channel_midi_port(client(), m_iChannelID, iMidiPort) != LSCP_OK) { |
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appendMessagesClient("lscp_set_channel_midi_port"); |
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return false; |
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} |
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|
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appendMessages(QObject::tr("MIDI port: %1.").arg(iMidiPort)); |
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|
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m_iMidiPort = iMidiPort; |
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return true; |
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} |
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|
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|
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// MIDI channel accessor. |
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int qsamplerChannel::midiChannel (void) const |
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{ |
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return m_iMidiChannel; |
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} |
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|
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bool qsamplerChannel::setMidiChannel ( int iMidiChannel ) |
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{ |
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if (client() == NULL || m_iChannelID < 0) |
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return false; |
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if (m_iInstrumentStatus == 100 && m_iMidiChannel == iMidiChannel) |
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return true; |
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|
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if (::lscp_set_channel_midi_channel(client(), m_iChannelID, iMidiChannel) != LSCP_OK) { |
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appendMessagesClient("lscp_set_channel_midi_channel"); |
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return false; |
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} |
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|
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appendMessages(QObject::tr("MIDI channel: %1.").arg(iMidiChannel)); |
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|
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m_iMidiChannel = iMidiChannel; |
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return true; |
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} |
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|
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|
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// Audio device accessor. |
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int qsamplerChannel::audioDevice (void) const |
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{ |
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return m_iAudioDevice; |
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} |
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|
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bool qsamplerChannel::setAudioDevice ( int iAudioDevice ) |
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{ |
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if (client() == NULL || m_iChannelID < 0) |
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return false; |
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if (m_iInstrumentStatus == 100 && m_iAudioDevice == iAudioDevice) |
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return true; |
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|
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if (::lscp_set_channel_audio_device(client(), m_iChannelID, iAudioDevice) != LSCP_OK) { |
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appendMessagesClient("lscp_set_channel_audio_device"); |
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return false; |
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} |
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|
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appendMessages(QObject::tr("Audio device: %1.").arg(iAudioDevice)); |
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|
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m_iAudioDevice = iAudioDevice; |
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return true; |
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} |
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|
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|
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// Audio driver type accessors (DEPRECATED). |
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const QString& qsamplerChannel::audioDriver (void) const |
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{ |
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return m_sAudioDriver; |
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} |
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|
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bool qsamplerChannel::setAudioDriver ( const QString& sAudioDriver ) |
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{ |
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if (client() == NULL || m_iChannelID < 0) |
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return false; |
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if (m_iInstrumentStatus == 100 && m_sAudioDriver == sAudioDriver) |
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return true; |
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|
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if (::lscp_set_channel_audio_type(client(), m_iChannelID, sAudioDriver.latin1()) != LSCP_OK) { |
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appendMessagesClient("lscp_set_channel_audio_type"); |
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return false; |
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} |
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|
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appendMessages(QObject::tr("Audio driver: %1.").arg(sAudioDriver)); |
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|
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m_sAudioDriver = sAudioDriver; |
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return true; |
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} |
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|
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|
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// Channel volume accessors. |
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float qsamplerChannel::volume (void) const |
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{ |
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return m_fVolume; |
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} |
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|
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bool qsamplerChannel::setVolume ( float fVolume ) |
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{ |
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if (client() == NULL || m_iChannelID < 0) |
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return false; |
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if (m_iInstrumentStatus == 100 && m_fVolume == fVolume) |
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return true; |
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|
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if (::lscp_set_channel_volume(client(), m_iChannelID, fVolume) != LSCP_OK) { |
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appendMessagesClient("lscp_set_channel_volume"); |
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return false; |
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} |
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|
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appendMessages(QObject::tr("Volume: %1.").arg(fVolume)); |
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|
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m_fVolume = fVolume; |
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return true; |
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} |
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|
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|
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// Istrument name remapper. |
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void qsamplerChannel::updateInstrumentName (void) |
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{ |
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#ifndef CONFIG_INSTRUMENT_NAME |
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m_sInstrumentName = getInstrumentName(m_sInstrumentFile, |
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m_iInstrumentNr, (options() && options()->bInstrumentNames)); |
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#endif |
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} |
428 |
|
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|
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// Update whole channel info state. |
431 |
bool qsamplerChannel::updateChannelInfo (void) |
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{ |
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if (client() == NULL || m_iChannelID < 0) |
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return false; |
435 |
|
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// Read channel information. |
437 |
lscp_channel_info_t *pChannelInfo = ::lscp_get_channel_info(client(), m_iChannelID); |
438 |
if (pChannelInfo == NULL) { |
439 |
appendMessagesClient("lscp_get_channel_info"); |
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appendMessagesError(QObject::tr("Could not get channel information.\n\nSorry.")); |
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return false; |
442 |
} |
443 |
|
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#ifdef CONFIG_INSTRUMENT_NAME |
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// We got all actual instrument datum... |
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m_sInstrumentFile = pChannelInfo->instrument_file; |
447 |
m_iInstrumentNr = pChannelInfo->instrument_nr; |
448 |
m_sInstrumentName = pChannelInfo->instrument_name; |
449 |
#else |
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// First, check if intrument name has changed, |
451 |
// taking care that instrument name lookup might be expensive, |
452 |
// so we better make it only once and when really needed... |
453 |
if ((m_sInstrumentFile != pChannelInfo->instrument_file) || |
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(m_iInstrumentNr != pChannelInfo->instrument_nr)) { |
455 |
m_sInstrumentFile = pChannelInfo->instrument_file; |
456 |
m_iInstrumentNr = pChannelInfo->instrument_nr; |
457 |
updateInstrumentName(); |
458 |
} |
459 |
#endif |
460 |
// Cache in other channel information. |
461 |
m_sEngineName = pChannelInfo->engine_name; |
462 |
m_iInstrumentStatus = pChannelInfo->instrument_status; |
463 |
m_iMidiDevice = pChannelInfo->midi_device; |
464 |
m_iMidiPort = pChannelInfo->midi_port; |
465 |
m_iMidiChannel = pChannelInfo->midi_channel; |
466 |
m_iAudioDevice = pChannelInfo->audio_device; |
467 |
m_fVolume = pChannelInfo->volume; |
468 |
// Some sanity checks. |
469 |
if (m_sEngineName == "NONE" || m_sEngineName.isEmpty()) |
470 |
m_sEngineName = QString::null; |
471 |
if (m_sInstrumentFile == "NONE" || m_sInstrumentFile.isEmpty()) { |
472 |
m_sInstrumentFile = QString::null; |
473 |
m_sInstrumentName = QString::null; |
474 |
} |
475 |
|
476 |
// Time for device info grabbing... |
477 |
lscp_device_info_t *pDeviceInfo; |
478 |
const QString sNone = QObject::tr("(none)"); |
479 |
// Audio device driver type. |
480 |
pDeviceInfo = ::lscp_get_audio_device_info(client(), m_iAudioDevice); |
481 |
if (pDeviceInfo == NULL) { |
482 |
appendMessagesClient("lscp_get_audio_device_info"); |
483 |
m_sAudioDriver = sNone; |
484 |
} else { |
485 |
m_sAudioDriver = pDeviceInfo->driver; |
486 |
} |
487 |
// MIDI device driver type. |
488 |
pDeviceInfo = ::lscp_get_midi_device_info(client(), m_iMidiDevice); |
489 |
if (pDeviceInfo == NULL) { |
490 |
appendMessagesClient("lscp_get_midi_device_info"); |
491 |
m_sMidiDriver = sNone; |
492 |
} else { |
493 |
m_sMidiDriver = pDeviceInfo->driver; |
494 |
} |
495 |
|
496 |
return true; |
497 |
} |
498 |
|
499 |
|
500 |
// Reset channel method. |
501 |
bool qsamplerChannel::channelReset (void) |
502 |
{ |
503 |
if (client() == NULL || m_iChannelID < 0) |
504 |
return false; |
505 |
|
506 |
if (::lscp_reset_channel(client(), m_iChannelID) != LSCP_OK) { |
507 |
appendMessagesClient("lscp_reset_channel"); |
508 |
return false; |
509 |
} |
510 |
|
511 |
appendMessages(QObject::tr("reset.")); |
512 |
|
513 |
return true; |
514 |
} |
515 |
|
516 |
|
517 |
// Channel setup dialog form. |
518 |
bool qsamplerChannel::channelSetup ( QWidget *pParent ) |
519 |
{ |
520 |
bool bResult = false; |
521 |
|
522 |
appendMessages(QObject::tr("setup...")); |
523 |
|
524 |
qsamplerChannelForm *pChannelForm = new qsamplerChannelForm(pParent); |
525 |
if (pChannelForm) { |
526 |
pChannelForm->setup(this); |
527 |
bResult = pChannelForm->exec(); |
528 |
delete pChannelForm; |
529 |
} |
530 |
|
531 |
return bResult; |
532 |
} |
533 |
|
534 |
|
535 |
// Redirected messages output methods. |
536 |
void qsamplerChannel::appendMessages( const QString& s ) const |
537 |
{ |
538 |
if (m_pMainForm) |
539 |
m_pMainForm->appendMessages(channelName() + ' ' + s); |
540 |
} |
541 |
|
542 |
void qsamplerChannel::appendMessagesColor( const QString& s, |
543 |
const QString& c ) const |
544 |
{ |
545 |
if (m_pMainForm) |
546 |
m_pMainForm->appendMessagesColor(channelName() + ' ' + s, c); |
547 |
} |
548 |
|
549 |
void qsamplerChannel::appendMessagesText( const QString& s ) const |
550 |
{ |
551 |
if (m_pMainForm) |
552 |
m_pMainForm->appendMessagesText(channelName() + ' ' + s); |
553 |
} |
554 |
|
555 |
void qsamplerChannel::appendMessagesError( const QString& s ) const |
556 |
{ |
557 |
if (m_pMainForm) |
558 |
m_pMainForm->appendMessagesError(channelName() + "\n\n" + s); |
559 |
} |
560 |
|
561 |
void qsamplerChannel::appendMessagesClient( const QString& s ) const |
562 |
{ |
563 |
if (m_pMainForm) |
564 |
m_pMainForm->appendMessagesClient(channelName() + ' ' + s); |
565 |
} |
566 |
|
567 |
|
568 |
// Context menu event handler. |
569 |
void qsamplerChannel::contextMenuEvent( QContextMenuEvent *pEvent ) |
570 |
{ |
571 |
if (m_pMainForm) |
572 |
m_pMainForm->contextMenuEvent(pEvent); |
573 |
} |
574 |
|
575 |
|
576 |
// FIXME: Check whether a given file is an instrument file. |
577 |
bool qsamplerChannel::isInstrumentFile ( const QString& sInstrumentFile ) |
578 |
{ |
579 |
bool bResult = false; |
580 |
|
581 |
QFile file(sInstrumentFile); |
582 |
if (file.open(IO_ReadOnly)) { |
583 |
char achHeader[16]; |
584 |
if (file.readBlock(achHeader, 16)) { |
585 |
bResult = (::memcmp(&achHeader[0], "RIFF", 4) == 0 |
586 |
&& ::memcmp(&achHeader[8], "DLS LIST", 8) == 0); |
587 |
} |
588 |
file.close(); |
589 |
} |
590 |
|
591 |
return bResult; |
592 |
} |
593 |
|
594 |
|
595 |
// Retrieve the instrument list of a instrument file (.gig). |
596 |
QStringList qsamplerChannel::getInstrumentList( const QString& sInstrumentFile, |
597 |
bool bInstrumentNames ) |
598 |
{ |
599 |
QString sInstrumentName = QFileInfo(sInstrumentFile).fileName(); |
600 |
QStringList instlist; |
601 |
|
602 |
if (isInstrumentFile(sInstrumentFile)) { |
603 |
#ifdef CONFIG_LIBGIG |
604 |
if (bInstrumentNames) { |
605 |
RIFF::File *pRiff = new RIFF::File(sInstrumentFile); |
606 |
gig::File *pGig = new gig::File(pRiff); |
607 |
gig::Instrument *pInstrument = pGig->GetFirstInstrument(); |
608 |
while (pInstrument) { |
609 |
instlist.append((pInstrument->pInfo)->Name.c_str()); |
610 |
pInstrument = pGig->GetNextInstrument(); |
611 |
} |
612 |
delete pGig; |
613 |
delete pRiff; |
614 |
} |
615 |
else |
616 |
#endif |
617 |
for (int iInstrumentNr = 0; iInstrumentNr < QSAMPLER_INSTRUMENT_MAX; iInstrumentNr++) |
618 |
instlist.append(sInstrumentName + " [" + QString::number(iInstrumentNr) + "]"); |
619 |
} |
620 |
else instlist.append(noInstrumentName()); |
621 |
|
622 |
return instlist; |
623 |
} |
624 |
|
625 |
|
626 |
// Retrieve the spacific instrument name of a instrument file (.gig), given its index. |
627 |
QString qsamplerChannel::getInstrumentName( const QString& sInstrumentFile, |
628 |
int iInstrumentNr, bool bInstrumentNames ) |
629 |
{ |
630 |
QString sInstrumentName; |
631 |
|
632 |
if (isInstrumentFile(sInstrumentFile)) { |
633 |
sInstrumentName = QFileInfo(sInstrumentFile).fileName(); |
634 |
#ifdef CONFIG_LIBGIG |
635 |
if (bInstrumentNames) { |
636 |
RIFF::File *pRiff = new RIFF::File(sInstrumentFile); |
637 |
gig::File *pGig = new gig::File(pRiff); |
638 |
int iIndex = 0; |
639 |
gig::Instrument *pInstrument = pGig->GetFirstInstrument(); |
640 |
while (pInstrument) { |
641 |
if (iIndex == iInstrumentNr) { |
642 |
sInstrumentName = (pInstrument->pInfo)->Name.c_str(); |
643 |
break; |
644 |
} |
645 |
iIndex++; |
646 |
pInstrument = pGig->GetNextInstrument(); |
647 |
} |
648 |
delete pGig; |
649 |
delete pRiff; |
650 |
} |
651 |
else |
652 |
#endif |
653 |
sInstrumentName += " [" + QString::number(iInstrumentNr) + "]"; |
654 |
} |
655 |
else sInstrumentName = noInstrumentName(); |
656 |
|
657 |
return sInstrumentName; |
658 |
} |
659 |
|
660 |
|
661 |
// Common invalid name-helpers. |
662 |
QString qsamplerChannel::noEngineName (void) |
663 |
{ |
664 |
return QObject::tr("(No engine)"); |
665 |
} |
666 |
|
667 |
QString qsamplerChannel::noInstrumentName (void) |
668 |
{ |
669 |
return QObject::tr("(No instrument)"); |
670 |
} |
671 |
|
672 |
|
673 |
// end of qsamplerChannel.cpp |