diff options
author | Paul Davis <paul@linuxaudiosystems.com> | 2008-06-02 21:41:35 +0000 |
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committer | Paul Davis <paul@linuxaudiosystems.com> | 2008-06-02 21:41:35 +0000 |
commit | 449aab3c465bbbf66d221fac3d7ea559f1720357 (patch) | |
tree | 6843cc40c88250a132acac701271f1504cd2df04 /libs/ardour/ardour/ladspa_plugin.h | |
parent | 9c0d7d72d70082a54f823cd44c0ccda5da64bb6f (diff) |
rollback to 3428, before the mysterious removal of libs/* at 3431/3432
git-svn-id: svn://localhost/ardour2/branches/3.0@3435 d708f5d6-7413-0410-9779-e7cbd77b26cf
Diffstat (limited to 'libs/ardour/ardour/ladspa_plugin.h')
-rw-r--r-- | libs/ardour/ardour/ladspa_plugin.h | 147 |
1 files changed, 147 insertions, 0 deletions
diff --git a/libs/ardour/ardour/ladspa_plugin.h b/libs/ardour/ardour/ladspa_plugin.h new file mode 100644 index 0000000000..b26e4120b1 --- /dev/null +++ b/libs/ardour/ardour/ladspa_plugin.h @@ -0,0 +1,147 @@ +/* + Copyright (C) 2000-2006 Paul Davis + + 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_ladspa_plugin_h__ +#define __ardour_ladspa_plugin_h__ + +#include <set> +#include <vector> +#include <string> +#include <dlfcn.h> + +#include <sigc++/signal.h> + +#include <pbd/stateful.h> + +#include <jack/types.h> +#include <ardour/ladspa.h> +#include <ardour/plugin.h> + +namespace ARDOUR { +class AudioEngine; +class Session; + +class LadspaPlugin : public ARDOUR::Plugin +{ + public: + LadspaPlugin (void *module, ARDOUR::AudioEngine&, ARDOUR::Session&, uint32_t index, nframes_t sample_rate); + LadspaPlugin (const LadspaPlugin &); + ~LadspaPlugin (); + + /* Plugin interface */ + + std::string unique_id() const; + const char* label() const { return _descriptor->Label; } + const char* name() const { return _descriptor->Name; } + const char* maker() const { return _descriptor->Maker; } + uint32_t parameter_count() const { return _descriptor->PortCount; } + 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 && _descriptor->activate) + _descriptor->activate (_handle); + + _was_activated = true; + } + + void deactivate () { + if (_was_activated && _descriptor->deactivate) + _descriptor->deactivate (_handle); + + _was_activated = false; + } + + void cleanup () { + activate(); + deactivate(); + + if (_descriptor->cleanup) + _descriptor->cleanup (_handle); + } + + 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 "ladspa"; } + 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); + + /* LADSPA extras */ + + LADSPA_Properties properties() const { return _descriptor->Properties; } + uint32_t index() const { return _index; } + const char * copyright() const { return _descriptor->Copyright; } + LADSPA_PortDescriptor port_descriptor(uint32_t i) const { return _descriptor->PortDescriptors[i]; } + const LADSPA_PortRangeHint* port_range_hints() const { return _descriptor->PortRangeHints; } + const char * const * port_names() const { return _descriptor->PortNames; } + + void set_gain (float gain) { _descriptor->set_run_adding_gain (_handle, gain); } + void run_adding (uint32_t nsamples) { _descriptor->run_adding (_handle, nsamples); } + void connect_port (uint32_t port, float *ptr) { _descriptor->connect_port (_handle, port, ptr); } + + private: + void* _module; + const LADSPA_Descriptor* _descriptor; + LADSPA_Handle _handle; + nframes_t _sample_rate; + LADSPA_Data* _control_data; + LADSPA_Data* _shadow_data; + LADSPA_Data* _latency_control_port; + uint32_t _index; + bool _was_activated; + + void init (void *mod, uint32_t index, nframes_t rate); + void run_in_place (nframes_t nsamples); + void latency_compute_run (); +}; + +class LadspaPluginInfo : public PluginInfo { + public: + LadspaPluginInfo () { }; + ~LadspaPluginInfo () { }; + + PluginPtr load (Session& session); +}; + +typedef boost::shared_ptr<LadspaPluginInfo> LadspaPluginInfoPtr; + +} // namespace ARDOUR + +#endif /* __ardour_ladspa_plugin_h__ */ |