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Diffstat (limited to 'muse_qt4_evolution/muse/ladspaplugin.h')
-rw-r--r-- | muse_qt4_evolution/muse/ladspaplugin.h | 127 |
1 files changed, 127 insertions, 0 deletions
diff --git a/muse_qt4_evolution/muse/ladspaplugin.h b/muse_qt4_evolution/muse/ladspaplugin.h new file mode 100644 index 00000000..4c492813 --- /dev/null +++ b/muse_qt4_evolution/muse/ladspaplugin.h @@ -0,0 +1,127 @@ +//============================================================================= +// MusE +// Linux Music Editor +// $Id:$ +// +// Copyright (C) 2006 by Werner Schweer and others +// +// This program is free software; you can redistribute it and/or modify +// it under the terms of the GNU General Public License version 2. +// +// This program is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. +// +// You should have received a copy of the GNU General Public License +// along with this program; if not, write to the Free Software +// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. +//============================================================================= + +#ifndef __LADSPAPLUGIN_H__ +#define __LADSPAPLUGIN_H__ + +#include "ladspa.h" +#include "plugin.h" + +//--------------------------------------------------------- +// LadspaPlugin +//--------------------------------------------------------- + +class LadspaPlugin : public Plugin { + LADSPA_Descriptor_Function ladspa; + const LADSPA_Descriptor* plugin; + + protected: + int _parameter; + std::vector<int> pIdx; + + int _inports; + std::vector<int> iIdx; + + int _outports; + std::vector<int> oIdx; + + bool _inPlaceCapable; + friend class LadspaPluginIF; + + public: + LadspaPlugin(const QFileInfo* f, + const LADSPA_Descriptor_Function, + const LADSPA_Descriptor* d); + + virtual QString label() const { return QString(plugin->Label); } + virtual QString name() const { return QString(plugin->Name); } + virtual unsigned long id() const { return plugin->UniqueID; } + virtual QString maker() const { return QString(plugin->Maker); } + virtual QString copyright() const { return QString(plugin->Copyright); } + + void* instantiate(); + virtual void range(int i, double*, double*) const; + virtual int parameter() const { return _parameter; } + virtual int inports() const { return _inports; } + virtual int outports() const { return _outports; } + + virtual bool inPlaceCapable() const { return _inPlaceCapable; } + virtual PluginIF* createPIF(PluginI*); + const LADSPA_Descriptor* ladspaDescriptor() const { return plugin; } + + virtual bool isLog(int k) const { + LADSPA_PortRangeHint r = plugin->PortRangeHints[pIdx[k]]; + return LADSPA_IS_HINT_LOGARITHMIC(r.HintDescriptor); + } + virtual bool isBool(int k) const { + return LADSPA_IS_HINT_TOGGLED(plugin->PortRangeHints[pIdx[k]].HintDescriptor); + } + virtual bool isInt(int k) const { + LADSPA_PortRangeHint r = plugin->PortRangeHints[pIdx[k]]; + return LADSPA_IS_HINT_INTEGER(r.HintDescriptor); + } + virtual double defaultValue(int) const; + }; + +//--------------------------------------------------------- +// LadspaPort +//--------------------------------------------------------- + +struct LadspaPort { + float val; + }; + +//--------------------------------------------------------- +// LadspaPluginIF +//--------------------------------------------------------- + +class LadspaPluginIF : public PluginIF { + const LADSPA_Descriptor* descr; + LADSPA_Handle handle; // per instance + LadspaPlugin* plugin; + + LadspaPort* controls; + + public: + LadspaPluginIF(PluginI* pi); + + virtual void apply(unsigned nframes, float** src, float** dst); + virtual void activate(); + virtual void deactivate() { + if (descr->deactivate) + descr->deactivate(handle); + } + virtual void cleanup() { + if (descr->cleanup) + descr->cleanup(handle); + } + virtual const char* getParameterName(int i) const { + return plugin->plugin->PortNames[plugin->pIdx[i]]; + } + virtual void setParam(int i, double val) { controls[i].val = val; } + virtual float param(int i) const { return controls[i].val; } + bool init(Plugin*); + }; + +extern float ladspaDefaultValue(const LADSPA_Descriptor* plugin, int k); + +#endif + + |