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Diffstat (limited to 'libs/ardour/ardour/lv2_plugin.h')
| -rw-r--r-- | libs/ardour/ardour/lv2_plugin.h | 138 |
1 files changed, 138 insertions, 0 deletions
diff --git a/libs/ardour/ardour/lv2_plugin.h b/libs/ardour/ardour/lv2_plugin.h new file mode 100644 index 0000000000..40b3c669fa --- /dev/null +++ b/libs/ardour/ardour/lv2_plugin.h @@ -0,0 +1,138 @@ +/* + 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__ */ |