--- qsampler/trunk/src/qsamplerChannel.cpp 2004/09/29 13:12:45 264 +++ qsampler/trunk/src/qsamplerChannel.cpp 2005/02/23 13:47:47 404 @@ -1,7 +1,7 @@ // qsamplerChannel.cpp // /**************************************************************************** - Copyright (C) 2003-2004, rncbc aka Rui Nuno Capela. All rights reserved. + Copyright (C) 2003-2005, rncbc aka Rui Nuno Capela. All rights reserved. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License @@ -22,9 +22,18 @@ #include "qsamplerChannel.h" #include "qsamplerMainForm.h" +#include "qsamplerChannelForm.h" #include "config.h" +#include + +#ifdef CONFIG_LIBGIG +#include "gig.h" +#endif + +#define QSAMPLER_INSTRUMENT_MAX 8 + //------------------------------------------------------------------------- // qsamplerChannel - Sampler channel structure. @@ -36,8 +45,9 @@ m_pMainForm = pMainForm; m_iChannelID = iChannelID; -// m_sEngineName = QObject::tr("(No engine)"); -// m_sInstrumentFile = QObject::tr("(No instrument)"); +// m_sEngineName = noEngineName(); +// m_sInstrumentName = noInstrumentName(); +// m_sInstrumentFile = m_sInstrumentName; m_iInstrumentNr = -1; m_iInstrumentStatus = -1; m_sMidiDriver = "Alsa"; // DEPRECATED. @@ -76,6 +86,50 @@ } +// Create a new sampler channel, if not already. +bool qsamplerChannel::addChannel (void) +{ + if (client() == NULL) + return false; + + // Are we a new channel? + if (m_iChannelID < 0) { + m_iChannelID = ::lscp_add_channel(client()); + if (m_iChannelID < 0) { + appendMessagesClient("lscp_add_channel"); + appendMessagesError(QObject::tr("Could not add channel.\n\nSorry.")); + } // Otherwise it's created... + else appendMessages(QObject::tr("added.")); + } + + // Return whether we're a valid channel... + return (m_iChannelID >= 0); +} + + +// Remove sampler channel. +bool qsamplerChannel::removeChannel (void) +{ + if (client() == NULL) + return false; + + // Are we an existing channel? + if (m_iChannelID >= 0) { + if (::lscp_remove_channel(client(), m_iChannelID) != LSCP_OK) { + appendMessagesClient("lscp_remove_channel"); + appendMessagesError(QObject::tr("Could not remove channel.\n\nSorry.")); + } else { + // Otherwise it's removed. + appendMessages(QObject::tr("removed.")); + m_iChannelID = -1; + } + } + + // Return whether we've removed the channel... + return (m_iChannelID < 0); +} + + // Channel-ID (aka Sammpler-Channel) accessors. int qsamplerChannel::channelID (void) { @@ -85,8 +139,13 @@ void qsamplerChannel::setChannelID ( int iChannelID ) { m_iChannelID = iChannelID; +} + - updateChannelInfo(); +// Readable channel name. +QString qsamplerChannel::channelName (void) +{ + return (m_iChannelID < 0 ? QObject::tr("New Channel") : QObject::tr("Channel %1").arg(m_iChannelID)); } @@ -98,13 +157,16 @@ bool qsamplerChannel::loadEngine ( const QString& sEngineName ) { - if (client() == NULL) + if (client() == NULL || m_iChannelID < 0) return false; - + if (m_iInstrumentStatus == 100 && m_sEngineName == sEngineName) + return true; + if (::lscp_load_engine(client(), sEngineName.latin1(), m_iChannelID) != LSCP_OK) { appendMessagesClient("lscp_load_engine"); return false; } + appendMessages(QObject::tr("Engine: %1.").arg(sEngineName)); m_sEngineName = sEngineName; return true; @@ -123,6 +185,12 @@ return m_iInstrumentNr; } +// Instrument name accessor. +QString& qsamplerChannel::instrumentName (void) +{ + return m_sInstrumentName; +} + // Instrument status accessor. int qsamplerChannel::instrumentStatus (void) { @@ -132,19 +200,38 @@ // Instrument file loader. bool qsamplerChannel::loadInstrument ( const QString& sInstrumentFile, int iInstrumentNr ) { - if (client() == NULL) + if (client() == NULL || m_iChannelID < 0) return false; + if (!isInstrumentFile(sInstrumentFile)) + return false; + if (m_iInstrumentStatus == 100 && m_sInstrumentFile == sInstrumentFile && m_iInstrumentNr == iInstrumentNr) + return true; if (::lscp_load_instrument_non_modal(client(), sInstrumentFile.latin1(), iInstrumentNr, m_iChannelID) != LSCP_OK) { appendMessagesClient("lscp_load_instrument"); return false; } + appendMessages(QObject::tr("Instrument: \"%1\" (%2).") + .arg(sInstrumentFile).arg(iInstrumentNr)); + + return setInstrument(sInstrumentFile, iInstrumentNr); +} + + +// Special instrument file/name/number settler. +bool qsamplerChannel::setInstrument ( const QString& sInstrumentFile, int iInstrumentNr ) +{ m_sInstrumentFile = sInstrumentFile; m_iInstrumentNr = iInstrumentNr; +#ifdef CONFIG_INSTRUMENT_NAME + m_sInstrumentName = QString::null; // We'll get it, maybe later, on channel_info... +#else + m_sInstrumentName = getInstrumentName(sInstrumentFile, iInstrumentNr, true); +#endif m_iInstrumentStatus = 0; - return true; + return true; } @@ -156,14 +243,18 @@ bool qsamplerChannel::setMidiDriver ( const QString& sMidiDriver ) { - if (client() == NULL) + if (client() == NULL || m_iChannelID < 0) return false; + if (m_iInstrumentStatus == 100 && m_sMidiDriver == sMidiDriver) + return true; if (::lscp_set_channel_midi_type(client(), m_iChannelID, sMidiDriver.latin1()) != LSCP_OK) { appendMessagesClient("lscp_set_channel_midi_type"); return false; } + appendMessages(QObject::tr("MIDI driver: %1.").arg(sMidiDriver)); + m_sMidiDriver = sMidiDriver; return true; } @@ -177,14 +268,18 @@ bool qsamplerChannel::setMidiDevice ( int iMidiDevice ) { - if (client() == NULL) + if (client() == NULL || m_iChannelID < 0) return false; + if (m_iInstrumentStatus == 100 && m_iMidiDevice == iMidiDevice) + return true; if (::lscp_set_channel_midi_device(client(), m_iChannelID, iMidiDevice) != LSCP_OK) { appendMessagesClient("lscp_set_channel_midi_device"); return false; } + appendMessages(QObject::tr("MIDI device: %1.").arg(iMidiDevice)); + m_iMidiDevice = iMidiDevice; return true; } @@ -198,14 +293,18 @@ bool qsamplerChannel::setMidiPort ( int iMidiPort ) { - if (client() == NULL) + if (client() == NULL || m_iChannelID < 0) return false; + if (m_iInstrumentStatus == 100 && m_iMidiPort == iMidiPort) + return true; if (::lscp_set_channel_midi_port(client(), m_iChannelID, iMidiPort) != LSCP_OK) { appendMessagesClient("lscp_set_channel_midi_port"); return false; } + appendMessages(QObject::tr("MIDI port: %1.").arg(iMidiPort)); + m_iMidiPort = iMidiPort; return true; } @@ -219,14 +318,18 @@ bool qsamplerChannel::setMidiChannel ( int iMidiChannel ) { - if (client() == NULL) + if (client() == NULL || m_iChannelID < 0) return false; + if (m_iInstrumentStatus == 100 && m_iMidiChannel == iMidiChannel) + return true; if (::lscp_set_channel_midi_channel(client(), m_iChannelID, iMidiChannel) != LSCP_OK) { appendMessagesClient("lscp_set_channel_midi_channel"); return false; } + appendMessages(QObject::tr("MIDI channel: %1.").arg(iMidiChannel)); + m_iMidiChannel = iMidiChannel; return true; } @@ -240,14 +343,18 @@ bool qsamplerChannel::setAudioDevice ( int iAudioDevice ) { - if (client() == NULL) + if (client() == NULL || m_iChannelID < 0) return false; + if (m_iInstrumentStatus == 100 && m_iAudioDevice == iAudioDevice) + return true; if (::lscp_set_channel_audio_device(client(), m_iChannelID, iAudioDevice) != LSCP_OK) { appendMessagesClient("lscp_set_channel_audio_device"); return false; } + appendMessages(QObject::tr("Audio device: %1.").arg(iAudioDevice)); + m_iAudioDevice = iAudioDevice; return true; } @@ -261,14 +368,18 @@ bool qsamplerChannel::setAudioDriver ( const QString& sAudioDriver ) { - if (client() == NULL) + if (client() == NULL || m_iChannelID < 0) return false; + if (m_iInstrumentStatus == 100 && m_sAudioDriver == sAudioDriver) + return true; if (::lscp_set_channel_audio_type(client(), m_iChannelID, sAudioDriver.latin1()) != LSCP_OK) { appendMessagesClient("lscp_set_channel_audio_type"); return false; } + appendMessages(QObject::tr("Audio driver: %1.").arg(sAudioDriver)); + m_sAudioDriver = sAudioDriver; return true; } @@ -282,89 +393,254 @@ bool qsamplerChannel::setVolume ( float fVolume ) { - if (client() == NULL) + if (client() == NULL || m_iChannelID < 0) return false; + if (m_iInstrumentStatus == 100 && m_fVolume == fVolume) + return true; if (::lscp_set_channel_volume(client(), m_iChannelID, fVolume) != LSCP_OK) { appendMessagesClient("lscp_set_channel_volume"); return false; } + appendMessages(QObject::tr("Volume: %1.").arg(fVolume)); + m_fVolume = fVolume; return true; } +// Istrument name remapper. +void qsamplerChannel::updateInstrumentName (void) +{ +#ifndef CONFIG_INSTRUMENT_NAME + m_sInstrumentName = getInstrumentName(m_sInstrumentFile, + m_iInstrumentNr, (options() && options()->bInstrumentNames)); +#endif +} + + // Update whole channel info state. -void qsamplerChannel::updateChannelInfo (void) +bool qsamplerChannel::updateChannelInfo (void) { - // Check if we're up and connected. - if (client() == NULL) - return; + if (client() == NULL || m_iChannelID < 0) + return false; // Read channel information. lscp_channel_info_t *pChannelInfo = ::lscp_get_channel_info(client(), m_iChannelID); if (pChannelInfo == NULL) { appendMessagesClient("lscp_get_channel_info"); appendMessagesError(QObject::tr("Could not get channel information.\n\nSorry.")); - } else { - // Cache in channel information. - m_sEngineName = pChannelInfo->engine_name; - m_sInstrumentFile = pChannelInfo->instrument_file; - m_iInstrumentNr = pChannelInfo->instrument_nr; - m_iInstrumentStatus = pChannelInfo->instrument_status; - m_iMidiDevice = pChannelInfo->midi_device; - m_iMidiPort = pChannelInfo->midi_port; - m_iMidiChannel = pChannelInfo->midi_channel; - m_iAudioDevice = pChannelInfo->audio_device; - m_fVolume = pChannelInfo->volume; - // Some sanity checks. - if (m_sEngineName == "NONE") - m_sEngineName = QString::null; - if (m_sInstrumentFile == "NONE") - m_sInstrumentFile = QString::null; + return false; } + +#ifdef CONFIG_INSTRUMENT_NAME + // We got all actual instrument datum... + m_sInstrumentFile = pChannelInfo->instrument_file; + m_iInstrumentNr = pChannelInfo->instrument_nr; + m_sInstrumentName = pChannelInfo->instrument_name; +#else + // First, check if intrument name has changed, + // taking care that instrument name lookup might be expensive, + // so we better make it only once and when really needed... + if ((m_sInstrumentFile != pChannelInfo->instrument_file) || + (m_iInstrumentNr != pChannelInfo->instrument_nr)) { + m_sInstrumentFile = pChannelInfo->instrument_file; + m_iInstrumentNr = pChannelInfo->instrument_nr; + updateInstrumentName(); + } +#endif + // Cache in other channel information. + m_sEngineName = pChannelInfo->engine_name; + m_iInstrumentStatus = pChannelInfo->instrument_status; + m_iMidiDevice = pChannelInfo->midi_device; + m_iMidiPort = pChannelInfo->midi_port; + m_iMidiChannel = pChannelInfo->midi_channel; + m_iAudioDevice = pChannelInfo->audio_device; + m_fVolume = pChannelInfo->volume; + // Some sanity checks. + if (m_sEngineName == "NONE") + m_sEngineName = QString::null; + if (m_sInstrumentFile == "NONE") { + m_sInstrumentFile = QString::null; + m_sInstrumentName = QString::null; + } + + return true; } // Reset channel method. -void qsamplerChannel::resetChannel (void) +bool qsamplerChannel::channelReset (void) { - // Check if we're up and connected. - if (client() == NULL) - return; + if (client() == NULL || m_iChannelID < 0) + return false; - if (::lscp_reset_channel(client(), m_iChannelID) != LSCP_OK) + if (::lscp_reset_channel(client(), m_iChannelID) != LSCP_OK) { appendMessagesClient("lscp_reset_channel"); - else - appendMessages(QObject::tr("Channel %1 reset.").arg(m_iChannelID)); + return false; + } + + appendMessages(QObject::tr("reset.")); + + return true; +} + + +// Channel setup dialog form. +bool qsamplerChannel::channelSetup ( QWidget *pParent ) +{ + bool bResult = false; + + appendMessages(QObject::tr("setup...")); + + qsamplerChannelForm *pChannelForm = new qsamplerChannelForm(pParent); + if (pChannelForm) { + pChannelForm->setup(this); + bResult = pChannelForm->exec(); + delete pChannelForm; + } + + return bResult; } // Redirected messages output methods. void qsamplerChannel::appendMessages( const QString& s ) { - m_pMainForm->appendMessages(s); + if (m_pMainForm) + m_pMainForm->appendMessages(channelName() + ' ' + s); } void qsamplerChannel::appendMessagesColor( const QString& s, const QString& c ) { - m_pMainForm->appendMessagesColor(s, c); + if (m_pMainForm) + m_pMainForm->appendMessagesColor(channelName() + ' ' + s, c); } void qsamplerChannel::appendMessagesText( const QString& s ) { - m_pMainForm->appendMessagesText(s); + if (m_pMainForm) + m_pMainForm->appendMessagesText(channelName() + ' ' + s); } void qsamplerChannel::appendMessagesError( const QString& s ) { - m_pMainForm->appendMessagesError(s); + if (m_pMainForm) + m_pMainForm->appendMessagesError(channelName() + "\n\n" + s); } void qsamplerChannel::appendMessagesClient( const QString& s ) { - m_pMainForm->appendMessagesClient(s); + if (m_pMainForm) + m_pMainForm->appendMessagesClient(channelName() + ' ' + s); +} + + +// Context menu event handler. +void qsamplerChannel::contextMenuEvent( QContextMenuEvent *pEvent ) +{ + if (m_pMainForm) + m_pMainForm->contextMenuEvent(pEvent); +} + + +// FIXME: Check whether a given file is an instrument file. +bool qsamplerChannel::isInstrumentFile ( const QString& sInstrumentFile ) +{ + bool bResult = false; + + QFile file(sInstrumentFile); + if (file.open(IO_ReadOnly)) { + char achHeader[4]; + if (file.readBlock(achHeader, 4)) { + bResult = (achHeader[0] == 'R' + && achHeader[1] == 'I' + && achHeader[2] == 'F' + && achHeader[3] == 'F'); + } + file.close(); + } + + return bResult; +} + + +// Retrieve the instrument list of a instrument file (.gig). +QStringList qsamplerChannel::getInstrumentList( const QString& sInstrumentFile, + bool bInstrumentNames ) +{ + QString sInstrumentName = QFileInfo(sInstrumentFile).fileName(); + QStringList instlist; + + if (isInstrumentFile(sInstrumentFile)) { +#ifdef CONFIG_LIBGIG + if (bInstrumentNames) { + RIFF::File *pRiff = new RIFF::File(sInstrumentFile); + gig::File *pGig = new gig::File(pRiff); + gig::Instrument *pInstrument = pGig->GetFirstInstrument(); + while (pInstrument) { + instlist.append((pInstrument->pInfo)->Name.c_str()); + pInstrument = pGig->GetNextInstrument(); + } + delete pGig; + delete pRiff; + } + else +#endif + for (int iInstrumentNr = 0; iInstrumentNr < QSAMPLER_INSTRUMENT_MAX; iInstrumentNr++) + instlist.append(sInstrumentName + " [" + QString::number(iInstrumentNr) + "]"); + } + else instlist.append(noInstrumentName()); + + return instlist; +} + + +// Retrieve the spacific instrument name of a instrument file (.gig), given its index. +QString qsamplerChannel::getInstrumentName( const QString& sInstrumentFile, + int iInstrumentNr, bool bInstrumentNames ) +{ + QString sInstrumentName; + + if (isInstrumentFile(sInstrumentFile)) { + sInstrumentName = QFileInfo(sInstrumentFile).fileName(); +#ifdef CONFIG_LIBGIG + if (bInstrumentNames) { + RIFF::File *pRiff = new RIFF::File(sInstrumentFile); + gig::File *pGig = new gig::File(pRiff); + int iIndex = 0; + gig::Instrument *pInstrument = pGig->GetFirstInstrument(); + while (pInstrument) { + if (iIndex == iInstrumentNr) { + sInstrumentName = (pInstrument->pInfo)->Name.c_str(); + break; + } + iIndex++; + pInstrument = pGig->GetNextInstrument(); + } + delete pGig; + delete pRiff; + } + else +#endif + sInstrumentName += " [" + QString::number(iInstrumentNr) + "]"; + } + else sInstrumentName = noInstrumentName(); + + return sInstrumentName; +} + + +// Common invalid name-helpers. +QString qsamplerChannel::noEngineName (void) +{ + return QObject::tr("(No engine)"); +} + +QString qsamplerChannel::noInstrumentName (void) +{ + return QObject::tr("(No instrument)"); }