zzub

1 #!/usr/bin/env python 2 # encoding: latin-1 3 4 from ctypes import * 5 6 import sys, os 7

8 -def load_library(*names,**kw):

9 """ 10 searches for a library with given names and returns a ctypes 11 .so/.dll library object if successful. if the library can not 12 be loaded, an assertion error will be thrown. 13 14 @type names: list of strings 15 @param names: one or more aliases for required libraries, e.g. 16 'SDL','SDL-1.2'. 17 @rtype: ctypes CDLL handle 18 """ 19 import ctypes, os, sys 20 searchpaths = [] 21 if os.name in ('posix', 'mac'): 22 if os.environ.has_key('LD_LIBRARY_PATH'): 23 searchpaths += os.environ['LD_LIBRARY_PATH'].split(os.pathsep) 24 searchpaths += [ 25 '/usr/local/lib64', 26 '/usr/local/lib', 27 '/usr/lib64', 28 '/usr/lib', 29 ] 30 elif os.name == 'nt': 31 searchpaths += ['.'] 32 if 'PATH' in os.environ: 33 searchpaths += os.environ['PATH'].split(os.pathsep) 34 else: 35 assert 0, "Unknown OS: %s" % os.name 36 if 'paths' in kw: 37 searchpaths += kw['paths'] 38 for name in names: 39 if os.name == 'nt': 40 libname = name + '.dll' 41 elif sys.platform == 'darwin': 42 libname = 'lib' + name + '.dylib' 43 if 'version' in kw: 44 libname += '.' + kw['version'] 45 else: 46 libname = 'lib' + name + '.so' 47 if 'version' in kw: 48 libname += '.' + kw['version'] 49 m = None 50 for path in searchpaths: 51 if os.path.isdir(path): 52 libpath = os.path.join(path,libname) 53 if os.path.isfile(libpath): 54 m = ctypes.CDLL(libpath) 55 break 56 for filename in reversed(sorted(os.listdir(path))): 57 if filename.startswith(libname): 58 m = ctypes.CDLL(os.path.join(path,filename)) 59 break 60 if m: 61 break 62 if m: 63 break 64 assert m, "libraries %s not found in %s" % (','.join(["'%s'" % a for a in names]),','.join(searchpaths)) 65 return m

66

67 -def dlopen(*args,**kwds):

68 """ 69 Opens a library by name and returns a handle object. See 70 {library.load} for more information. 71 """ 72 return load_library(*args,**kwds)

73

74 -def dlsym(lib, name, restype, *args):

75 """ 76 Retrieves a symbol from a library loaded by dlopen and 77 assigns correct result and argument types. 78 79 @param lib: Library object. 80 @type lib: ctypes.CDLL 81 @param name: Name of symbol. 82 @type name: str 83 @param restype: Type of function return value. 84 @param args: Types of function arguments. 85 """ 86 if not lib: 87 return None 88 proc = getattr(lib,name) 89 proc.restype = restype 90 proc.argtypes = [argtype for argname,argtype in args] 91 proc.o_restype = restype 92 proc.o_args = args 93 return proc

94 95 libzzub = dlopen("zzub", "0.3") 96 97 # enum zzub 98 zzub_version = 15 99 zzub_buffer_size = 256 100 101 # enum zzub_event_type 102 zzub_event_type_pre_flag = 16384 103 zzub_event_type_double_click = 0 104 zzub_event_type_new_plugin = 1 105 zzub_event_type_delete_plugin = 2 106 zzub_event_type_pre_delete_plugin = 9 107 zzub_event_type_disconnect = 3 108 zzub_event_type_connect = 4 109 zzub_event_type_plugin_changed = 30 110 zzub_event_type_parameter_changed = 7 111 zzub_event_type_set_tracks = 13 112 zzub_event_type_set_sequence_tracks = 23 113 zzub_event_type_set_sequence_event = 24 114 zzub_event_type_new_pattern = 25 115 zzub_event_type_delete_pattern = 26 116 zzub_event_type_pre_delete_pattern = 47 117 zzub_event_type_edit_pattern = 27 118 zzub_event_type_pattern_changed = 31 119 zzub_event_type_pattern_insert_rows = 42 120 zzub_event_type_pattern_remove_rows = 43 121 zzub_event_type_sequencer_add_track = 32 122 zzub_event_type_sequencer_remove_track = 33 123 zzub_event_type_sequencer_changed = 41 124 zzub_event_type_pre_disconnect = 34 125 zzub_event_type_pre_connect = 35 126 zzub_event_type_post_connect = 46 127 zzub_event_type_pre_set_tracks = 36 128 zzub_event_type_post_set_tracks = 45 129 zzub_event_type_envelope_changed = 37 130 zzub_event_type_slices_changed = 38 131 zzub_event_type_wave_changed = 39 132 zzub_event_type_delete_wave = 40 133 zzub_event_type_load_progress = 8 134 zzub_event_type_midi_control = 11 135 zzub_event_type_wave_allocated = 12 136 zzub_event_type_player_state_changed = 20 137 zzub_event_type_osc_message = 21 138 zzub_event_type_vu = 22 139 zzub_event_type_custom = 44 140 zzub_event_type_all = 255 141 142 # enum zzub_player_state 143 zzub_player_state_playing = 0 144 zzub_player_state_stopped = 1 145 zzub_player_state_muted = 2 146 zzub_player_state_released = 3 147 148 # enum zzub_parameter_type 149 zzub_parameter_type_note = 0 150 zzub_parameter_type_switch = 1 151 zzub_parameter_type_byte = 2 152 zzub_parameter_type_word = 3 153 154 # enum zzub_wave_buffer_type 155 zzub_wave_buffer_type_si16 = 0 156 zzub_wave_buffer_type_f32 = 1 157 zzub_wave_buffer_type_si32 = 2 158 zzub_wave_buffer_type_si24 = 3 159 160 # enum zzub_oscillator_type 161 zzub_oscillator_type_sine = 0 162 zzub_oscillator_type_sawtooth = 1 163 zzub_oscillator_type_pulse = 2 164 zzub_oscillator_type_triangle = 3 165 zzub_oscillator_type_noise = 4 166 zzub_oscillator_type_sawtooth_303 = 5 167 168 # enum zzub_note_value 169 zzub_note_value_none = 0 170 zzub_note_value_off = 255 171 zzub_note_value_min = 1 172 zzub_note_value_max = 156 173 zzub_note_value_c4 = 65 174 175 # enum zzub_switch_value 176 zzub_switch_value_none = 255 177 zzub_switch_value_off = 0 178 zzub_switch_value_on = 1 179 180 # enum zzub_wavetable_index_value 181 zzub_wavetable_index_value_none = 0 182 zzub_wavetable_index_value_min = 1 183 zzub_wavetable_index_value_max = 200 184 185 # enum zzub_parameter_flag 186 zzub_parameter_flag_wavetable_index = (1 << 0) 187 zzub_parameter_flag_state = (1 << 1) 188 zzub_parameter_flag_event_on_edit = (1 << 2) 189 190 # enum zzub_plugin_flag 191 zzub_plugin_flag_mono_to_stereo = (1 << 0) 192 zzub_plugin_flag_plays_waves = (1 << 1) 193 zzub_plugin_flag_uses_lib_interface = (1 << 2) 194 zzub_plugin_flag_uses_instruments = (1 << 3) 195 zzub_plugin_flag_does_input_mixing = (1 << 4) 196 zzub_plugin_flag_no_output = (1 << 5) 197 zzub_plugin_flag_control_plugin = (1 << 6) 198 zzub_plugin_flag_auxiliary = (1 << 7) 199 zzub_plugin_flag_is_root = (1 << 16) 200 zzub_plugin_flag_has_audio_input = (1 << 17) 201 zzub_plugin_flag_has_audio_output = (1 << 18) 202 zzub_plugin_flag_has_event_input = (1 << 19) 203 zzub_plugin_flag_has_event_output = (1 << 20) 204 zzub_plugin_flag_offline = (1 << 21) 205 zzub_plugin_flag_stream = (1 << 22) 206 zzub_plugin_flag_import = (1 << 25) 207 zzub_plugin_flag_has_midi_input = (1 << 23) 208 zzub_plugin_flag_has_midi_output = (1 << 24) 209 zzub_plugin_flag_no_undo = (1 << 25) 210 zzub_plugin_flag_no_save = (1 << 26) 211 212 # enum zzub_state_flag 213 zzub_state_flag_playing = 1 214 zzub_state_flag_recording = 2 215 216 # enum zzub_wave_flag 217 zzub_wave_flag_loop = (1 << 0) 218 zzub_wave_flag_extended = (1 << 2) 219 zzub_wave_flag_stereo = (1 << 3) 220 zzub_wave_flag_pingpong = (1 << 4) 221 zzub_wave_flag_envelope = (1 << 7) 222 223 # enum zzub_envelope_flag 224 zzub_envelope_flag_sustain = (1 << 0) 225 zzub_envelope_flag_loop = (1 << 1) 226 227 # enum zzub_process_mode 228 zzub_process_mode_no_io = 0 229 zzub_process_mode_read = (1 << 0) 230 zzub_process_mode_write = (1 << 1) 231 zzub_process_mode_read_write = (1 << 0)|(1 << 1) 232 233 # enum zzub_connection_type 234 zzub_connection_type_audio = 0 235 zzub_connection_type_event = 1 236 zzub_connection_type_midi = 2 237 238 # enum zzub_parameter_group 239 zzub_parameter_group_connection = 0 240 zzub_parameter_group_global = 1 241 zzub_parameter_group_track = 2

242 -class zzub_plugin_t(Structure):

243 """Plugin methods 244 Retreive more details about plugins.""" 245 _fields_ = [ 246 ] 247 _anonymous_ = [ 248 ]

249 -class zzub_event_data_new_plugin_t(Structure):

250 _fields_ = [ 251 ("plugin", POINTER(zzub_plugin_t)), 252 ] 253 _anonymous_ = [ 254 ]

255 -class zzub_event_data_delete_plugin_t(Structure):

256 _fields_ = [ 257 ("plugin", POINTER(zzub_plugin_t)), 258 ] 259 _anonymous_ = [ 260 ]

261 -class zzub_event_data_midi_message_t(Structure):

262 _fields_ = [ 263 ("status", c_ubyte), 264 ("data1", c_ubyte), 265 ("data2", c_ubyte), 266 ] 267 _anonymous_ = [ 268 ]

269 -class zzub_event_data_connect_t(Structure):

270 _fields_ = [ 271 ("from_plugin", POINTER(zzub_plugin_t)), 272 ("to_plugin", POINTER(zzub_plugin_t)), 273 ("type", c_int), 274 ] 275 _anonymous_ = [ 276 ]

277 -class zzub_event_data_plugin_changed_t(Structure):

278 _fields_ = [ 279 ("plugin", POINTER(zzub_plugin_t)), 280 ] 281 _anonymous_ = [ 282 ]

283 -class zzub_event_data_change_parameter_t(Structure):

284

Source Code for Package zzub