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/*
Copyright (C) 2008 Paul Davis
Author: Dave Robillard
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
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 __ardour_lv2_plugin_h__
#define __ardour_lv2_plugin_h__
#include <set>
#include <vector>
#include <string>
#include <dlfcn.h>
#include <sigc++/signal.h>
#include <pbd/stateful.h>
#include <jack/types.h>
#include <slv2/slv2.h>
#include <ardour/plugin.h>
namespace ARDOUR {
class AudioEngine;
class Session;
class LV2Plugin : public ARDOUR::Plugin
{
public:
LV2Plugin (ARDOUR::AudioEngine&, ARDOUR::Session&, SLV2Plugin plugin, nframes_t sample_rate);
LV2Plugin (const LV2Plugin &);
~LV2Plugin ();
/* Plugin interface */
std::string unique_id() const;
const char* label() const { return slv2_plugin_get_name(_plugin); }
const char* name() const { return slv2_plugin_get_name(_plugin); }
const char* maker() const { return slv2_plugin_get_author_name(_plugin); }
uint32_t parameter_count() const { return slv2_plugin_get_num_ports(_plugin); }
float default_value (uint32_t port);
nframes_t signal_latency() const;
void set_parameter (uint32_t port, float val);
float get_parameter (uint32_t port) const;
int get_parameter_descriptor (uint32_t which, ParameterDescriptor&) const;
uint32_t nth_parameter (uint32_t port, bool& ok) const;
std::set<Parameter> automatable() const;
void activate () {
if (!_was_activated) {
slv2_instance_activate(_instance);
_was_activated = true;
}
}
void deactivate () {
if (_was_activated) {
slv2_instance_deactivate(_instance);
_was_activated = false;
}
}
void cleanup () {
activate();
deactivate();
slv2_instance_free(_instance);
_instance = NULL;
}
void set_block_size (nframes_t nframes) {}
int connect_and_run (BufferSet& bufs, uint32_t& in, uint32_t& out, nframes_t nframes, nframes_t offset);
std::string describe_parameter (Parameter);
std::string state_node_name() const { return "lv2"; }
void print_parameter (uint32_t, char*, uint32_t len) const;
bool parameter_is_audio(uint32_t) const;
bool parameter_is_control(uint32_t) const;
bool parameter_is_input(uint32_t) const;
bool parameter_is_output(uint32_t) const;
bool parameter_is_toggled(uint32_t) const;
XMLNode& get_state();
int set_state(const XMLNode& node);
bool save_preset(std::string name);
bool has_editor() const { return false; }
int require_output_streams (uint32_t);
private:
void* _module;
SLV2Plugin _plugin;
SLV2Template _template;
SLV2Instance _instance;
nframes_t _sample_rate;
float* _control_data;
float* _shadow_data;
float* _latency_control_port;
bool _was_activated;
vector<bool> _port_is_input;
void init (SLV2Plugin plugin, nframes_t rate);
void run (nframes_t nsamples);
void latency_compute_run ();
};
class LV2PluginInfo : public PluginInfo {
public:
LV2PluginInfo (void* slv2_plugin);;
~LV2PluginInfo ();;
static PluginInfoList discover (void* slv2_world);
PluginPtr load (Session& session);
void* _slv2_plugin;
};
typedef boost::shared_ptr<LV2PluginInfo> LV2PluginInfoPtr;
} // namespace ARDOUR
#endif /* __ardour_lv2_plugin_h__ */
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