Chris@1178: /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */
Chris@1178: 
Chris@1178: /*
Chris@1178:     Sonic Visualiser
Chris@1178:     An audio file viewer and annotation editor.
Chris@1178:     Centre for Digital Music, Queen Mary, University of London.
Chris@1178:     
Chris@1178:     This program is free software; you can redistribute it and/or
Chris@1178:     modify it under the terms of the GNU General Public License as
Chris@1178:     published by the Free Software Foundation; either version 2 of the
Chris@1178:     License, or (at your option) any later version.  See the file
Chris@1178:     COPYING included with this distribution for more information.
Chris@1178: */
Chris@1178: 
Chris@1178: #include "PluginScan.h"
Chris@1178: 
Chris@1178: #include "base/Debug.h"
Chris@1178: 
Chris@1180: #include "checker/knownplugins.h"
Chris@1180: 
Chris@1178: #include <QMutex>
Chris@1181: #include <QCoreApplication>
Chris@1178: 
Chris@1178: using std::string;
Chris@1178: 
cannam@1231: //#define DEBUG_PLUGIN_SCAN 1
cannam@1231: 
Chris@1180: class PluginScan::Logger : public PluginCandidates::LogCallback
Chris@1180: {
Chris@1180: protected:
Chris@1180:     void log(std::string message) {
cannam@1231: #ifdef DEBUG_PLUGIN_SCAN
cannam@1231:         cerr << "PluginScan: " << message;
cannam@1231: #endif
Chris@1180:         SVDEBUG << "PluginScan: " << message;
Chris@1180:     }
Chris@1180: };
Chris@1180: 
Chris@1180: PluginScan *PluginScan::getInstance()
Chris@1180: {
Chris@1178:     static QMutex mutex;
Chris@1178:     static PluginScan *m_instance = 0;
Chris@1178:     mutex.lock();
Chris@1178:     if (!m_instance) m_instance = new PluginScan();
Chris@1178:     mutex.unlock();
Chris@1178:     return m_instance;
Chris@1178: }
Chris@1178: 
Chris@1180: PluginScan::PluginScan() : m_kp(0), m_succeeded(false), m_logger(new Logger) {
Chris@1178: }
Chris@1178: 
Chris@1178: PluginScan::~PluginScan() {
Chris@1178:     delete m_kp;
Chris@1180:     delete m_logger;
Chris@1178: }
Chris@1178: 
Chris@1178: void
Chris@1181: PluginScan::scan(QString helperExecutablePath)
Chris@1178: {
Chris@1178:     delete m_kp;
Chris@1179:     m_succeeded = false;
Chris@1179:     try {
Chris@1181: 	m_kp = new KnownPlugins(helperExecutablePath.toStdString(), m_logger);
Chris@1179: 	m_succeeded = true;
Chris@1179:     } catch (const std::exception &e) {
Chris@1179: 	cerr << "ERROR: PluginScan::scan: " << e.what() << endl;
Chris@1179: 	m_kp = 0;
Chris@1179:     }
Chris@1179: }
Chris@1179: 
Chris@1179: QStringList
Chris@1180: PluginScan::getCandidateLibrariesFor(PluginType type) const
Chris@1179: {
Chris@1180:     KnownPlugins::PluginType kpt;
Chris@1180:     switch (type) {
Chris@1180:     case VampPlugin: kpt = KnownPlugins::VampPlugin; break;
Chris@1180:     case LADSPAPlugin: kpt = KnownPlugins::LADSPAPlugin; break;
Chris@1180:     case DSSIPlugin: kpt = KnownPlugins::DSSIPlugin; break;
Chris@1180:     default: throw std::logic_error("Inconsistency in plugin type enums");
Chris@1180:     }
Chris@1180:     
Chris@1179:     QStringList candidates;
Chris@1179:     if (!m_kp) return candidates;
Chris@1180:     auto c = m_kp->getCandidateLibrariesFor(kpt);
Chris@1179:     for (auto s: c) candidates.push_back(s.c_str());
Chris@1179:     return candidates;
Chris@1178: }
Chris@1178: 
Chris@1178: QString
Chris@1178: PluginScan::getStartupFailureReport() const
Chris@1178: {
Chris@1179:     if (!m_succeeded) {
Chris@1179: 	return QObject::tr("<b>Failed to scan for plugins</b>"
Chris@1181: 			   "<p>Failed to scan for plugins at startup. Possibly "
Chris@1181:                            "the plugin checker helper program was not correctly "
Chris@1181:                            "installed alongside %1?</p>")
Chris@1181:             .arg(QCoreApplication::applicationName());
Chris@1179:     }
Chris@1179:     if (!m_kp) {
Chris@1179: 	return QObject::tr("<b>Did not scan for plugins</b>"
Chris@1179: 			   "<p>Apparently no scan for plugins was attempted "
Chris@1179: 			   "(internal error?)</p>");
Chris@1179:     }
Chris@1179: 
Chris@1178:     string report = m_kp->getFailureReport();
Chris@1179:     if (report == "") {
Chris@1179: 	return QString(report.c_str());
Chris@1179:     }
Chris@1179: 
Chris@1179:     return QObject::tr("<b>Failed to load plugins</b>"
Chris@1179: 		       "<p>Failed to load one or more plugin libraries:</p>")
Chris@1181: 	+ QString(report.c_str())
Chris@1181:         + QObject::tr("<p>These plugins may be incompatible with the system, "
Chris@1181:                       "and will be ignored during this run of %1.</p>")
Chris@1181:         .arg(QCoreApplication::applicationName());
Chris@1178: }
Chris@1178: