|
- #!/usr/bin/env python3
- # -*- coding: utf-8 -*-
-
- # Carla Backend code
- # Copyright (C) 2011-2013 Filipe Coelho <falktx@falktx.com>
- #
- # 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 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.
- #
- # For a full copy of the GNU General Public License see the GPL.txt file
-
- # ------------------------------------------------------------------------------------------------------------
- # Imports (Global)
-
- from ctypes import *
-
- # ------------------------------------------------------------------------------------------------------------
- # Imports (Custom)
-
- from carla_shared import *
-
- # ------------------------------------------------------------------------------------------------------------
- # Convert a ctypes struct into a python dict
-
- def structToDict(struct):
- return dict((attr, getattr(struct, attr)) for attr, value in struct._fields_)
-
- # ------------------------------------------------------------------------------------------------------------
- # Backend C++ -> Python variables
-
- c_enum = c_int
- c_nullptr = None
- c_uintptr = c_uint64 if kIs64bit else c_uint32
-
- CallbackFunc = CFUNCTYPE(None, c_void_p, c_enum, c_uint, c_int, c_int, c_float, c_char_p)
-
- class ParameterData(Structure):
- _fields_ = [
- ("type", c_enum),
- ("index", c_int32),
- ("rindex", c_int32),
- ("hints", c_uint32),
- ("midiChannel", c_uint8),
- ("midiCC", c_int16)
- ]
-
- class ParameterRanges(Structure):
- _fields_ = [
- ("def", c_float),
- ("min", c_float),
- ("max", c_float),
- ("step", c_float),
- ("stepSmall", c_float),
- ("stepLarge", c_float)
- ]
-
- class MidiProgramData(Structure):
- _fields_ = [
- ("bank", c_uint32),
- ("program", c_uint32),
- ("name", c_char_p)
- ]
-
- class CustomData(Structure):
- _fields_ = [
- ("type", c_char_p),
- ("key", c_char_p),
- ("value", c_char_p)
- ]
-
- # ------------------------------------------------------------------------------------------------------------
- # Standalone C++ -> Python variables
-
- class CarlaPluginInfo(Structure):
- _fields_ = [
- ("type", c_enum),
- ("category", c_enum),
- ("hints", c_uint),
- ("optionsAvailable", c_uint),
- ("optionsEnabled", c_uint),
- ("binary", c_char_p),
- ("name", c_char_p),
- ("label", c_char_p),
- ("maker", c_char_p),
- ("copyright", c_char_p),
- ("uniqueId", c_long),
- ("latency", c_uint32)
- ]
-
- class CarlaNativePluginInfo(Structure):
- _fields_ = [
- ("category", c_enum),
- ("hints", c_uint),
- ("audioIns", c_uint32),
- ("audioOuts", c_uint32),
- ("midiIns", c_uint32),
- ("midiOuts", c_uint32),
- ("parameterIns", c_uint32),
- ("parameterOuts", c_uint32),
- ("name", c_char_p),
- ("label", c_char_p),
- ("maker", c_char_p),
- ("copyright", c_char_p)
- ]
-
- class CarlaPortCountInfo(Structure):
- _fields_ = [
- ("ins", c_uint32),
- ("outs", c_uint32),
- ("total", c_uint32)
- ]
-
- class CarlaParameterInfo(Structure):
- _fields_ = [
- ("name", c_char_p),
- ("symbol", c_char_p),
- ("unit", c_char_p),
- ("scalePointCount", c_uint32)
- ]
-
- class CarlaScalePointInfo(Structure):
- _fields_ = [
- ("value", c_float),
- ("label", c_char_p)
- ]
-
- # ------------------------------------------------------------------------------------------------------------
- # Standalone Python object
-
- class Host(object):
- def __init__(self, lib_prefix_arg):
- object.__init__(self)
-
- global carla_library_path
-
- if lib_prefix_arg:
- carla_library_path = os.path.join(lib_prefix_arg, "lib", "carla", carla_libname)
-
- if not carla_library_path:
- self.lib = None
- return
-
- self.lib = cdll.LoadLibrary(carla_library_path)
-
- self.lib.carla_get_extended_license_text.argtypes = None
- self.lib.carla_get_extended_license_text.restype = c_char_p
-
- self.lib.carla_get_engine_driver_count.argtypes = None
- self.lib.carla_get_engine_driver_count.restype = c_uint
-
- self.lib.carla_get_engine_driver_name.argtypes = [c_uint]
- self.lib.carla_get_engine_driver_name.restype = c_char_p
-
- self.lib.carla_get_internal_plugin_count.argtypes = None
- self.lib.carla_get_internal_plugin_count.restype = c_uint
-
- self.lib.carla_get_internal_plugin_info.argtypes = [c_uint]
- self.lib.carla_get_internal_plugin_info.restype = POINTER(CarlaNativePluginInfo)
-
- self.lib.carla_engine_init.argtypes = [c_char_p, c_char_p]
- self.lib.carla_engine_init.restype = c_bool
-
- self.lib.carla_engine_close.argtypes = None
- self.lib.carla_engine_close.restype = c_bool
-
- self.lib.carla_engine_idle.argtypes = None
- self.lib.carla_engine_idle.restype = None
-
- self.lib.carla_is_engine_running.argtypes = None
- self.lib.carla_is_engine_running.restype = c_bool
-
- self.lib.carla_set_engine_about_to_close.argtypes = None
- self.lib.carla_set_engine_about_to_close.restype = None
-
- self.lib.carla_set_engine_callback.argtypes = [CallbackFunc, c_void_p]
- self.lib.carla_set_engine_callback.restype = None
-
- self.lib.carla_set_engine_option.argtypes = [c_enum, c_int, c_char_p]
- self.lib.carla_set_engine_option.restype = None
-
- self.lib.carla_load_project.argtypes = [c_char_p]
- self.lib.carla_load_project.restype = c_bool
-
- self.lib.carla_save_project.argtypes = [c_char_p]
- self.lib.carla_save_project.restype = c_bool
-
- self.lib.carla_patchbay_connect.argtypes = [c_int, c_int]
- self.lib.carla_patchbay_connect.restype = None
-
- self.lib.carla_patchbay_disconnect.argtypes = [c_int]
- self.lib.carla_patchbay_disconnect.restype = None
-
- self.lib.carla_transport_play.argtypes = None
- self.lib.carla_transport_play.restype = None
-
- self.lib.carla_transport_pause.argtypes = None
- self.lib.carla_transport_pause.restype = None
-
- self.lib.carla_transport_relocate.argtypes = [c_uint32]
- self.lib.carla_transport_relocate.restype = None
-
- self.lib.carla_add_plugin.argtypes = [c_enum, c_enum, c_char_p, c_char_p, c_char_p, c_void_p]
- self.lib.carla_add_plugin.restype = c_bool
-
- self.lib.carla_remove_plugin.argtypes = [c_uint]
- self.lib.carla_remove_plugin.restype = c_bool
-
- self.lib.carla_remove_all_plugins.argtypes = None
- self.lib.carla_remove_all_plugins.restype = None
-
- self.lib.carla_load_plugin_state.argtypes = [c_uint, c_char_p]
- self.lib.carla_load_plugin_state.restype = c_bool
-
- self.lib.carla_save_plugin_state.argtypes = [c_uint, c_char_p]
- self.lib.carla_save_plugin_state.restype = c_bool
-
- self.lib.carla_get_plugin_info.argtypes = [c_uint]
- self.lib.carla_get_plugin_info.restype = POINTER(CarlaPluginInfo)
-
- self.lib.carla_get_audio_port_count_info.argtypes = [c_uint]
- self.lib.carla_get_audio_port_count_info.restype = POINTER(CarlaPortCountInfo)
-
- self.lib.carla_get_midi_port_count_info.argtypes = [c_uint]
- self.lib.carla_get_midi_port_count_info.restype = POINTER(CarlaPortCountInfo)
-
- self.lib.carla_get_parameter_count_info.argtypes = [c_uint]
- self.lib.carla_get_parameter_count_info.restype = POINTER(CarlaPortCountInfo)
-
- self.lib.carla_get_parameter_info.argtypes = [c_uint, c_uint32]
- self.lib.carla_get_parameter_info.restype = POINTER(CarlaParameterInfo)
-
- self.lib.carla_get_parameter_scalepoint_info.argtypes = [c_uint, c_uint32, c_uint32]
- self.lib.carla_get_parameter_scalepoint_info.restype = POINTER(CarlaScalePointInfo)
-
- self.lib.carla_get_parameter_data.argtypes = [c_uint, c_uint32]
- self.lib.carla_get_parameter_data.restype = POINTER(ParameterData)
-
- self.lib.carla_get_parameter_ranges.argtypes = [c_uint, c_uint32]
- self.lib.carla_get_parameter_ranges.restype = POINTER(ParameterRanges)
-
- self.lib.carla_get_midi_program_data.argtypes = [c_uint, c_uint32]
- self.lib.carla_get_midi_program_data.restype = POINTER(MidiProgramData)
-
- self.lib.carla_get_custom_data.argtypes = [c_uint, c_uint32]
- self.lib.carla_get_custom_data.restype = POINTER(CustomData)
-
- self.lib.carla_get_chunk_data.argtypes = [c_uint]
- self.lib.carla_get_chunk_data.restype = c_char_p
-
- self.lib.carla_get_parameter_count.argtypes = [c_uint]
- self.lib.carla_get_parameter_count.restype = c_uint32
-
- self.lib.carla_get_program_count.argtypes = [c_uint]
- self.lib.carla_get_program_count.restype = c_uint32
-
- self.lib.carla_get_midi_program_count.argtypes = [c_uint]
- self.lib.carla_get_midi_program_count.restype = c_uint32
-
- self.lib.carla_get_custom_data_count.argtypes = [c_uint]
- self.lib.carla_get_custom_data_count.restype = c_uint32
-
- self.lib.carla_get_parameter_text.argtypes = [c_uint, c_uint32]
- self.lib.carla_get_parameter_text.restype = c_char_p
-
- self.lib.carla_get_program_name.argtypes = [c_uint, c_uint32]
- self.lib.carla_get_program_name.restype = c_char_p
-
- self.lib.carla_get_midi_program_name.argtypes = [c_uint, c_uint32]
- self.lib.carla_get_midi_program_name.restype = c_char_p
-
- self.lib.carla_get_real_plugin_name.argtypes = [c_uint]
- self.lib.carla_get_real_plugin_name.restype = c_char_p
-
- self.lib.carla_get_current_program_index.argtypes = [c_uint]
- self.lib.carla_get_current_program_index.restype = c_int32
-
- self.lib.carla_get_current_midi_program_index.argtypes = [c_uint]
- self.lib.carla_get_current_midi_program_index.restype = c_int32
-
- # TODO - consider removal
- self.lib.carla_get_default_parameter_value.argtypes = [c_uint, c_uint32]
- self.lib.carla_get_default_parameter_value.restype = c_float
-
- # TODO - consider removal
- self.lib.carla_get_current_parameter_value.argtypes = [c_uint, c_uint32]
- self.lib.carla_get_current_parameter_value.restype = c_float
-
- self.lib.carla_get_input_peak_value.argtypes = [c_uint, c_ushort]
- self.lib.carla_get_input_peak_value.restype = c_float
-
- self.lib.carla_get_output_peak_value.argtypes = [c_uint, c_ushort]
- self.lib.carla_get_output_peak_value.restype = c_float
-
- self.lib.carla_set_option.argtypes = [c_uint, c_uint, c_bool]
- self.lib.carla_set_option.restype = None
-
- self.lib.carla_set_active.argtypes = [c_uint, c_bool]
- self.lib.carla_set_active.restype = None
-
- self.lib.carla_set_drywet.argtypes = [c_uint, c_float]
- self.lib.carla_set_drywet.restype = None
-
- self.lib.carla_set_volume.argtypes = [c_uint, c_float]
- self.lib.carla_set_volume.restype = None
-
- self.lib.carla_set_balance_left.argtypes = [c_uint, c_float]
- self.lib.carla_set_balance_left.restype = None
-
- self.lib.carla_set_balance_right.argtypes = [c_uint, c_float]
- self.lib.carla_set_balance_right.restype = None
-
- self.lib.carla_set_panning.argtypes = [c_uint, c_float]
- self.lib.carla_set_panning.restype = None
-
- self.lib.carla_set_ctrl_channel.argtypes = [c_uint, c_int8]
- self.lib.carla_set_ctrl_channel.restype = None
-
- self.lib.carla_set_parameter_value.argtypes = [c_uint, c_uint32, c_float]
- self.lib.carla_set_parameter_value.restype = None
-
- self.lib.carla_set_parameter_midi_cc.argtypes = [c_uint, c_uint32, c_int16]
- self.lib.carla_set_parameter_midi_cc.restype = None
-
- self.lib.carla_set_parameter_midi_channel.argtypes = [c_uint, c_uint32, c_uint8]
- self.lib.carla_set_parameter_midi_channel.restype = None
-
- self.lib.carla_set_program.argtypes = [c_uint, c_uint32]
- self.lib.carla_set_program.restype = None
-
- self.lib.carla_set_midi_program.argtypes = [c_uint, c_uint32]
- self.lib.carla_set_midi_program.restype = None
-
- self.lib.carla_set_custom_data.argtypes = [c_uint, c_char_p, c_char_p, c_char_p]
- self.lib.carla_set_custom_data.restype = None
-
- self.lib.carla_set_chunk_data.argtypes = [c_uint, c_char_p]
- self.lib.carla_set_chunk_data.restype = None
-
- self.lib.carla_prepare_for_save.argtypes = [c_uint]
- self.lib.carla_prepare_for_save.restype = None
-
- self.lib.carla_send_midi_note.argtypes = [c_uint, c_uint8, c_uint8, c_uint8]
- self.lib.carla_send_midi_note.restype = None
-
- self.lib.carla_show_gui.argtypes = [c_uint, c_bool]
- self.lib.carla_show_gui.restype = None
-
- self.lib.carla_get_buffer_size.argtypes = None
- self.lib.carla_get_buffer_size.restype = c_uint32
-
- self.lib.carla_get_sample_rate.argtypes = None
- self.lib.carla_get_sample_rate.restype = c_double
-
- self.lib.carla_get_last_error.argtypes = None
- self.lib.carla_get_last_error.restype = c_char_p
-
- self.lib.carla_get_host_osc_url.argtypes = None
- self.lib.carla_get_host_osc_url.restype = c_char_p
-
- #self.lib.nsm_announce.argtypes = [c_char_p, c_int]
- #self.lib.nsm_announce.restype = None
-
- #self.lib.nsm_reply_open.argtypes = None
- #self.lib.nsm_reply_open.restype = None
-
- #self.lib.nsm_reply_save.argtypes = None
- #self.lib.nsm_reply_save.restype = None
-
- def get_extended_license_text(self):
- return self.lib.carla_get_extended_license_text()
-
- def get_engine_driver_count(self):
- return self.lib.carla_get_engine_driver_count()
-
- def get_engine_driver_name(self, index):
- return self.lib.carla_get_engine_driver_name(index)
-
- def get_internal_plugin_count(self):
- return self.lib.carla_get_internal_plugin_count()
-
- def get_internal_plugin_info(self, internalPluginId):
- return structToDict(self.lib.carla_get_internal_plugin_info(internalPluginId).contents)
-
- def engine_init(self, driverName, clientName):
- return self.lib.carla_engine_init(driverName.encode("utf-8"), clientName.encode("utf-8"))
-
- def engine_close(self):
- return self.lib.carla_engine_close()
-
- def engine_idle(self):
- self.lib.carla_engine_idle()
-
- def is_engine_running(self):
- return self.lib.carla_is_engine_running()
-
- def set_engine_about_to_close(self):
- self.lib.carla_set_engine_about_to_close()
-
- def set_engine_callback(self, func):
- self._callback = CallbackFunc(func)
- self.lib.carla_set_engine_callback(self._callback, c_nullptr)
-
- def set_engine_option(self, option, value, valueStr):
- self.lib.carla_set_engine_option(option, value, valueStr.encode("utf-8"))
-
- def load_project(self, filename):
- return self.lib.carla_load_project(filename.encode("utf-8"))
-
- def save_project(self, filename):
- return self.lib.carla_save_project(filename.encode("utf-8"))
-
- def patchbay_connect(self, portIdA, portIdB):
- self.lib.carla_patchbay_connect(portIdA, portIdB)
-
- def patchbay_disconnect(self, connectionId):
- self.lib.carla_patchbay_disconnect(connectionId)
-
- def transport_play(self):
- self.lib.carla_transport_play()
-
- def transport_pause(self):
- self.lib.carla_transport_pause()
-
- def transport_relocate(self, frames):
- self.lib.carla_transport_relocate(frames)
-
- def add_plugin(self, btype, ptype, filename, name, label, extraStuff):
- cname = name.encode("utf-8") if name else c_nullptr
- return self.lib.carla_add_plugin(btype, ptype, filename.encode("utf-8"), cname, label.encode("utf-8"), cast(extraStuff, c_void_p))
-
- def remove_plugin(self, pluginId):
- return self.lib.carla_remove_plugin(pluginId)
-
- def remove_all_plugins(self):
- self.lib.carla_remove_all_plugins()
-
- def load_plugin_state(self, pluginId, filename):
- return self.lib.carla_load_plugin_state(pluginId, filename.encode("utf-8"))
-
- def save_plugin_state(self, pluginId, filename):
- return self.lib.carla_save_plugin_state(pluginId, filename.encode("utf-8"))
-
- def get_plugin_info(self, pluginId):
- return structToDict(self.lib.carla_get_plugin_info(pluginId).contents)
-
- def get_audio_port_count_info(self, pluginId):
- return structToDict(self.lib.carla_get_audio_port_count_info(pluginId).contents)
-
- def get_midi_port_count_info(self, pluginId):
- return structToDict(self.lib.carla_get_midi_port_count_info(pluginId).contents)
-
- def get_parameter_count_info(self, pluginId):
- return structToDict(self.lib.carla_get_parameter_count_info(pluginId).contents)
-
- def get_parameter_info(self, pluginId, parameterId):
- return structToDict(self.lib.carla_get_parameter_info(pluginId, parameterId).contents)
-
- def get_parameter_scalepoint_info(self, pluginId, parameterId, scalePointId):
- return structToDict(self.lib.carla_get_parameter_scalepoint_info(pluginId, parameterId, scalePointId).contents)
-
- def get_parameter_data(self, pluginId, parameterId):
- return structToDict(self.lib.carla_get_parameter_data(pluginId, parameterId).contents)
-
- def get_parameter_ranges(self, pluginId, parameterId):
- return structToDict(self.lib.carla_get_parameter_ranges(pluginId, parameterId).contents)
-
- def get_midi_program_data(self, pluginId, midiProgramId):
- return structToDict(self.lib.carla_get_midi_program_data(pluginId, midiProgramId).contents)
-
- def get_custom_data(self, pluginId, customDataId):
- return structToDict(self.lib.carla_get_custom_data(pluginId, customDataId).contents)
-
- def get_chunk_data(self, pluginId):
- return self.lib.carla_get_chunk_data(pluginId)
-
- def get_parameter_count(self, pluginId):
- return self.lib.carla_get_parameter_count(pluginId)
-
- def get_program_count(self, pluginId):
- return self.lib.carla_get_program_count(pluginId)
-
- def get_midi_program_count(self, pluginId):
- return self.lib.carla_get_midi_program_count(pluginId)
-
- def get_custom_data_count(self, pluginId):
- return self.lib.carla_get_custom_data_count(pluginId)
-
- def get_parameter_text(self, pluginId, parameterId):
- return self.lib.carla_get_parameter_text(pluginId, parameterId)
-
- def get_program_name(self, pluginId, programId):
- return self.lib.carla_get_program_name(pluginId, programId)
-
- def get_midi_program_name(self, pluginId, midiProgramId):
- return self.lib.carla_get_midi_program_name(pluginId, midiProgramId)
-
- def get_real_plugin_name(self, pluginId):
- return self.lib.carla_get_real_plugin_name(pluginId)
-
- def get_current_program_index(self, pluginId):
- return self.lib.carla_get_current_program_index(pluginId)
-
- def get_current_midi_program_index(self, pluginId):
- return self.lib.carla_get_current_midi_program_index(pluginId)
-
- def get_default_parameter_value(self, pluginId, parameterId):
- return self.lib.carla_get_default_parameter_value(pluginId, parameterId)
-
- def get_current_parameter_value(self, pluginId, parameterId):
- return self.lib.carla_get_current_parameter_value(pluginId, parameterId)
-
- def get_input_peak_value(self, pluginId, portId):
- return self.lib.carla_get_input_peak_value(pluginId, portId)
-
- def get_output_peak_value(self, pluginId, portId):
- return self.lib.carla_get_output_peak_value(pluginId, portId)
-
- def set_option(self, pluginId, option, yesNo):
- self.lib.carla_set_option(pluginId, option, yesNo)
-
- def set_active(self, pluginId, onOff):
- self.lib.carla_set_active(pluginId, onOff)
-
- def set_drywet(self, pluginId, value):
- self.lib.carla_set_drywet(pluginId, value)
-
- def set_volume(self, pluginId, value):
- self.lib.carla_set_volume(pluginId, value)
-
- def set_balance_left(self, pluginId, value):
- self.lib.carla_set_balance_left(pluginId, value)
-
- def set_balance_right(self, pluginId, value):
- self.lib.carla_set_balance_right(pluginId, value)
-
- def set_panning(self, pluginId, value):
- self.lib.carla_set_panning(pluginId, value)
-
- def set_ctrl_channel(self, pluginId, channel):
- self.lib.carla_set_ctrl_channel(pluginId, channel)
-
- def set_parameter_value(self, pluginId, parameterId, value):
- self.lib.carla_set_parameter_value(pluginId, parameterId, value)
-
- def set_parameter_midi_cc(self, pluginId, parameterId, cc):
- self.lib.carla_set_parameter_midi_cc(pluginId, parameterId, cc)
-
- def set_parameter_midi_channel(self, pluginId, parameterId, channel):
- self.lib.carla_set_parameter_midi_channel(pluginId, parameterId, channel)
-
- def set_program(self, pluginId, programId):
- self.lib.carla_set_program(pluginId, programId)
-
- def set_midi_program(self, pluginId, midiProgramId):
- self.lib.carla_set_midi_program(pluginId, midiProgramId)
-
- def set_custom_data(self, pluginId, type_, key, value):
- self.lib.carla_set_custom_data(pluginId, type_.encode("utf-8"), key.encode("utf-8"), value.encode("utf-8"))
-
- def set_chunk_data(self, pluginId, chunkData):
- self.lib.carla_set_chunk_data(pluginId, chunkData.encode("utf-8"))
-
- def prepare_for_save(self, pluginId):
- self.lib.carla_prepare_for_save(pluginId)
-
- def send_midi_note(self, pluginId, channel, note, velocity):
- self.lib.carla_send_midi_note(pluginId, channel, note, velocity)
-
- def show_gui(self, pluginId, yesNo):
- self.lib.carla_show_gui(pluginId, yesNo)
-
- def get_last_error(self):
- return self.lib.carla_get_last_error()
-
- def get_host_osc_url(self):
- return self.lib.carla_get_host_osc_url()
-
- def get_buffer_size(self):
- return self.lib.carla_get_buffer_size()
-
- def get_sample_rate(self):
- return self.lib.carla_get_sample_rate()
-
- #def nsm_announce(self, url, pid):
- #self.lib.nsm_announce(url.encode("utf-8"), pid)
-
- #def nsm_reply_open(self):
- #self.lib.nsm_reply_open()
-
- #def nsm_reply_save(self):
- #self.lib.nsm_reply_save()
-
- #Carla.host = Host(None)
-
- ## Test available drivers
- #driverCount = Carla.host.get_engine_driver_count()
- #driverList = []
- #for i in range(driverCount):
- #driver = cString(Carla.host.get_engine_driver_name(i))
- #if driver:
- #driverList.append(driver)
- #print(i, driver)
-
- ## Test available internal plugins
- #pluginCount = Carla.host.get_internal_plugin_count()
- #for i in range(pluginCount):
- #plugin = Carla.host.get_internal_plugin_info(i)
- #print(plugin)
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