OfxhImageEffectPluginCache.cpp

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#include "OfxhImageEffectPluginCache.hpp"
#include "OfxhImageEffectPlugin.hpp"

///@todo tuttle: remove this!
#include <tuttle/host/Core.hpp>

#include <boost/algorithm/string/case_conv.hpp>

namespace tuttle {
namespace host {
namespace ofx {
namespace imageEffect {

OfxhImageEffectPluginCache::OfxhImageEffectPluginCache( tuttle::host::ofx::imageEffect::OfxhImageEffectHost& host )
        : OfxhPluginAPICacheI( kOfxImageEffectPluginApi, 1, 1 )
        , _host( &host ) {}

OfxhImageEffectPluginCache::~OfxhImageEffectPluginCache() {}

/**
 * get the plugin by id.  vermaj and vermin can be specified.  if they are not it will
 * pick the highest found version.
 */
OfxhImageEffectPlugin* OfxhImageEffectPluginCache::getPluginById( const std::string& id, int vermaj, int vermin )
{
        std::string idLower = id;
        boost::to_lower( idLower );
        
        if( vermaj == -1 &&  vermin == -1 )
                return _pluginsByID[idLower];

        // return the highest version one, which fits the pattern provided
        OfxhImageEffectPlugin* sofar = 0;

        for( std::vector<OfxhImageEffectPlugin*>::iterator i = _plugins.begin(); i != _plugins.end(); ++i )
        {
                OfxhImageEffectPlugin& p = **i;

                if( p.getIdentifier() != idLower )
                {
                        continue;
                }

                if( vermaj != -1 && p.getVersionMajor() != vermaj )
                {
                        continue;
                }

                if( vermin != -1 && p.getVersionMinor() != vermin )
                {
                        continue;
                }

                if( !sofar || p.trumps( *sofar ) )
                {
                        sofar = &p;
                }
        }
        return sofar;
}

/**
 * get the plugin by label. vermaj and vermin can be specified.  if they are not it will
 * pick the highest found version.
 */
OfxhImageEffectPlugin* OfxhImageEffectPluginCache::getPluginByLabel( const std::string& label, int vermaj, int vermin )
{
        // return the highest version one, which fits the pattern provided
        OfxhImageEffectPlugin* sofar = 0;

        for( std::vector<OfxhImageEffectPlugin*>::iterator i = _plugins.begin(); i != _plugins.end(); ++i )
        {
                OfxhImageEffectPlugin& p = **i;

                if( p.getDescriptor().getProperties().getStringProperty( kOfxPropLabel ) != label )
                {
                        continue;
                }

                if( vermaj != -1 && p.getVersionMajor() != vermaj )
                {
                        continue;
                }

                if( vermin != -1 && p.getVersionMinor() != vermin )
                {
                        continue;
                }

                if( !sofar || p.trumps( *sofar ) )
                {
                        sofar = &p;
                }
        }

        return sofar;
}

const std::vector<OfxhImageEffectPlugin*>& OfxhImageEffectPluginCache::getPlugins() const
{
        return _plugins;
}

const std::map<std::string, OfxhImageEffectPlugin*>& OfxhImageEffectPluginCache::getPluginsByID() const
{
        return _pluginsByID;
}

/**
 * handle the case where the info needs filling in from the file.
 * Runs the "describe" action on the plugin.
 */
void OfxhImageEffectPluginCache::loadFromPlugin( OfxhPlugin& op )
{
        std::string msg = "loading ";

        msg += op.getRawIdentifier();

        _host->loadingStatus( msg );

        OfxhImageEffectPlugin& p = dynamic_cast<OfxhImageEffectPlugin&>( op );

        OfxhPluginHandle plug( p, getHost() );

        int rval = plug->mainEntry( kOfxActionLoad, 0, 0, 0 );
        
        if( rval != kOfxStatOK && rval != kOfxStatReplyDefault )
        {
                BOOST_THROW_EXCEPTION( exception::OfxCustom( rval )
                    << exception::user( "Loading plugin failed." )
                    << exception::dev( "kOfxActionLoad failed." )
                    << exception::pluginIdentifier( op.getIdentifier() ) );
        }

        rval = plug->mainEntry( kOfxActionDescribe, p.getDescriptor().getHandle(), 0, 0 );

        if( rval != kOfxStatOK && rval != kOfxStatReplyDefault )
        {
                BOOST_THROW_EXCEPTION( exception::OfxCustom( rval )
                    << exception::user( "Loading plugin failed." )
                    << exception::dev( "kOfxActionDescribe failed." )
                    << exception::pluginIdentifier( op.getIdentifier() ) );
        }

        const imageEffect::OfxhImageEffectNodeDescriptor& e = p.getDescriptor();
        const property::OfxhSet& eProps                     = e.getProperties();

        const int size = eProps.getDimension( kOfxImageEffectPropSupportedContexts );

        for( int j = 0; j < size; ++j )
        {
                std::string context = eProps.getStringProperty( kOfxImageEffectPropSupportedContexts, j );
                p.addContext( context );
        }

        rval = plug->mainEntry( kOfxActionUnload, 0, 0, 0 );

        if( rval != kOfxStatOK && rval != kOfxStatReplyDefault )
        {
                BOOST_THROW_EXCEPTION( exception::OfxCustom( rval )
                    << exception::user( "Unloading plugin failed in initialization." )
                    << exception::dev( "kOfxActionUnload failed." )
                    << exception::pluginIdentifier( op.getIdentifier() ) );
        }
}

void OfxhImageEffectPluginCache::confirmPlugin( OfxhPlugin& p )
{
        OfxhImageEffectPlugin& plugin = dynamic_cast<OfxhImageEffectPlugin&>( p );

        _plugins.push_back( &plugin );

        if( _pluginsByID.find( plugin.getIdentifier() ) != _pluginsByID.end() )
        {
                OfxhImageEffectPlugin& otherPlugin = *_pluginsByID[plugin.getIdentifier()];
                if( plugin.trumps( otherPlugin ) )
                {
                        _pluginsByID[plugin.getIdentifier()] = &plugin;
                }
        }
        else
        {
                _pluginsByID[plugin.getIdentifier()] = &plugin;
        }

        OfxhMajorPlugin maj( plugin );

        if( _pluginsByIDMajor.find( maj ) != _pluginsByIDMajor.end() )
        {
                OfxhImageEffectPlugin& otherPlugin = *_pluginsByIDMajor[maj];
                if( plugin.getVersionMajor() != otherPlugin.getVersionMajor() || plugin.trumps( otherPlugin ) )
                {
                        _pluginsByIDMajor[maj] = &plugin;
                }
        }
        else
        {
                _pluginsByIDMajor[maj] = &plugin;
        }
}

/// whether we support this plugin.
bool OfxhImageEffectPluginCache::pluginSupported( const tuttle::host::ofx::OfxhPlugin& p, std::string& reason ) const
{
        const OfxhImageEffectPlugin* imageEffectPlugin = dynamic_cast<const OfxhImageEffectPlugin*>( &p );

        if( !imageEffectPlugin )
                return false;
        return core().getHost().pluginSupported( *imageEffectPlugin, reason );
}

OfxhPlugin* OfxhImageEffectPluginCache::newPlugin( OfxhPluginBinary& pb,
                                                   int               pi,
                                                   OfxPlugin&        pl )
{
        OfxhImageEffectPlugin* plugin = new OfxhImageEffectPlugin( *this, pb, pi, pl );

        return plugin;
}

OfxhPlugin* OfxhImageEffectPluginCache::newPlugin( OfxhPluginBinary&  pb,
                                                   int                pi,
                                                   const std::string& api,
                                                   int                apiVersion,
                                                   const std::string& pluginId,
                                                   const std::string& rawId,
                                                   int                pluginMajorVersion,
                                                   int                pluginMinorVersion )
{
        OfxhImageEffectPlugin* plugin = new OfxhImageEffectPlugin( *this, pb, pi, api, apiVersion, pluginId, rawId, pluginMajorVersion, pluginMinorVersion );

        return plugin;
}

std::ostream& operator<<( std::ostream& os, const OfxhImageEffectPluginCache& v )
{
        os << "OfxhImageEffectPluginCache {" << std::endl;

        if( v._pluginsByID.empty() )
        {
                os << "No Plug-ins Found." << std::endl;
                os << "}" << std::endl;
                return os;
        }
        os << "Nb Plugins:" << v._pluginsByID.size() << std::endl;
        
        os << "________________________________________________________________________________" << std::endl;
        for( std::map<std::string, OfxhImageEffectPlugin*>::const_iterator it = v._pluginsByID.begin(); it != v._pluginsByID.end(); ++it )
        {
                os << "Plug-in:" << it->first << std::endl;
                os << "  " << "Filepath: " << it->second->getBinary().getFilePath();
                os << "(" << it->second->getIndex() << ")" << std::endl;

                os << "Contexts:" << std::endl;
                const std::set<std::string>& contexts = it->second->getContexts();
                for( std::set<std::string>::const_iterator it2 = contexts.begin(); it2 != contexts.end(); ++it2 )
                        os << "  * " << *it2 << std::endl;
                const OfxhImageEffectNodeDescriptor& d = it->second->getDescriptor();
                os << "Inputs:" << std::endl;
                const std::map<std::string, attribute::OfxhClipImageDescriptor*>& inputs = d.getClips();
                for( std::map<std::string, attribute::OfxhClipImageDescriptor*>::const_iterator it2 = inputs.begin(); it2 != inputs.end(); ++it2 )
                        os << "    * " << it2->first << std::endl;
                os << "________________________________________________________________________________" << std::endl;
        }
        os << "}" << std::endl;
        return os;
}

}
}
}
}