Chris@27: /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */
Chris@27: 
Chris@27: /*
Chris@27:     Sonic Visualiser
Chris@27:     An audio file viewer and annotation editor.
Chris@27:     Centre for Digital Music, Queen Mary, University of London.
Chris@27:     This file copyright 2006 Chris Cannam.
Chris@27:    
Chris@27:     This program is free software; you can redistribute it and/or
Chris@27:     modify it under the terms of the GNU General Public License as
Chris@27:     published by the Free Software Foundation; either version 2 of the
Chris@27:     License, or (at your option) any later version.  See the file
Chris@27:     COPYING included with this distribution for more information.
Chris@27: */
Chris@27: 
Chris@27: #include "PluginTransform.h"
Chris@27: 
Chris@28: #include "vamp-sdk/PluginHostAdapter.h"
Chris@28: 
Chris@27: PluginTransform::PluginTransform(Model *inputModel,
Chris@27: 				 const ExecutionContext &context) :
Chris@27:     Transform(inputModel),
Chris@27:     m_context(context)
Chris@27: {
Chris@27: }
Chris@27: 
Chris@27: PluginTransform::ExecutionContext::ExecutionContext(int _c, size_t _bs) :
Chris@27:     channel(_c),
Chris@27:     domain(Vamp::Plugin::TimeDomain),
Chris@27:     stepSize(_bs ? _bs : 1024),
Chris@27:     blockSize(_bs ? _bs : 1024),
Chris@27:     windowType(HanningWindow)
Chris@27: {
Chris@27: }
Chris@27: 
Chris@27: PluginTransform::ExecutionContext::ExecutionContext(int _c, size_t _ss,
Chris@27:                                                     size_t _bs, WindowType _wt) :
Chris@27:     channel(_c),
Chris@27:     domain(Vamp::Plugin::FrequencyDomain),
Chris@27:     stepSize(_ss ? _ss : (_bs ? _bs / 2 : 512)),
Chris@27:     blockSize(_bs ? _bs : 1024),
Chris@27:     windowType(_wt)
Chris@27: {
Chris@27: }
Chris@27: 
Chris@27: PluginTransform::ExecutionContext::ExecutionContext(int _c,
Chris@27:                                                     const Vamp::PluginBase *_plugin) :
Chris@27:     channel(_c),
Chris@27:     domain(Vamp::Plugin::TimeDomain),
Chris@27:     stepSize(0),
Chris@27:     blockSize(0),
Chris@27:     windowType(HanningWindow)
Chris@27: {
Chris@27:     makeConsistentWithPlugin(_plugin);
Chris@27: }
Chris@27: 
Chris@27: bool
Chris@27: PluginTransform::ExecutionContext::operator==(const ExecutionContext &c)
Chris@27: {
Chris@27:     return (c.channel == channel &&
Chris@27:             c.domain == domain &&
Chris@27:             c.stepSize == stepSize &&
Chris@27:             c.blockSize == blockSize &&
Chris@27:             c.windowType == windowType);
Chris@27: }
Chris@27: 
Chris@27: void
Chris@27: PluginTransform::ExecutionContext::makeConsistentWithPlugin(const Vamp::PluginBase *_plugin)
Chris@27: {
Chris@27:     const Vamp::Plugin *vp = dynamic_cast<const Vamp::Plugin *>(_plugin);
Chris@28:     if (!vp) {
Chris@28:         vp = dynamic_cast<const Vamp::PluginHostAdapter *>(_plugin); //!!! why?
Chris@28:     }
Chris@27: 
Chris@27:     if (!vp) {
Chris@27:         domain = Vamp::Plugin::TimeDomain;
Chris@27:         if (!stepSize) {
Chris@27:             if (!blockSize) blockSize = 1024;
Chris@27:             stepSize = blockSize;
Chris@27:         } else {
Chris@27:             if (!blockSize) blockSize = stepSize;
Chris@27:         }
Chris@27:     } else {
Chris@27:         domain = vp->getInputDomain();
Chris@27:         if (!stepSize) stepSize = vp->getPreferredStepSize();
Chris@27:         if (!blockSize) blockSize = vp->getPreferredBlockSize();
Chris@27:         if (!blockSize) blockSize = 1024;
Chris@27:         if (!stepSize) {
Chris@27:             if (domain == Vamp::Plugin::FrequencyDomain) {
Chris@27:                 stepSize = blockSize/2;
Chris@27:             } else {
Chris@27:                 stepSize = blockSize;
Chris@27:             }
Chris@27:         }
Chris@27:     }
Chris@27: }
Chris@27:     
Chris@27: