4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
25 #include "ardour/session.h"
26 #include "ardour/tempo.h"
27 #include "ardour/windows_vst_plugin.h"
28 #include "ardour/vestige/aeffectx.h"
29 #include "ardour/vst_types.h"
33 #define DEBUG_CALLBACKS
34 static int debug_callbacks = -1;
36 #ifdef DEBUG_CALLBACKS
37 #define SHOW_CALLBACK if (debug_callbacks) printf
39 #define SHOW_CALLBACK(...)
42 using namespace ARDOUR;
44 intptr_t Session::vst_callback (
53 static VstTimeInfo _timeInfo;
57 if (debug_callbacks < 0) {
58 debug_callbacks = (getenv ("ARDOUR_DEBUG_VST_CALLBACKS") != 0);
61 if (effect && effect->user) {
62 plug = (VSTPlugin *) (effect->user);
63 session = &plug->session();
65 SHOW_CALLBACK ("am callback 0x%x, opcode = %d, plugin = \"%s\" ", (int) pthread_self().p, opcode, plug->name());
67 SHOW_CALLBACK ("am callback 0x%x, opcode = %d, plugin = \"%s\" ", (int) pthread_self(), opcode, plug->name());
73 SHOW_CALLBACK ("am callback 0x%x, opcode = %d", (int) pthread_self().p, opcode);
75 SHOW_CALLBACK ("am callback 0x%x, opcode = %d", (int) pthread_self(), opcode);
81 case audioMasterAutomate:
82 SHOW_CALLBACK ("amc: audioMasterAutomate\n");
83 // index, value, returns 0
85 plug->set_parameter (index, opt);
89 case audioMasterVersion:
90 SHOW_CALLBACK ("amc: audioMasterVersion\n");
91 // vst version, currently 2 (0 for older)
94 case audioMasterCurrentId:
95 SHOW_CALLBACK ("amc: audioMasterCurrentId\n");
96 // returns the unique id of a plug that's currently
100 case audioMasterIdle:
101 SHOW_CALLBACK ("amc: audioMasterIdle\n");
102 // call application idle routine (this will
103 // call effEditIdle for all open editors too)
105 effect->dispatcher(effect, effEditIdle, 0, 0, NULL, 0.0f);
109 case audioMasterPinConnected:
110 SHOW_CALLBACK ("amc: audioMasterPinConnected\n");
111 // inquire if an input or output is beeing connected;
112 // index enumerates input or output counting from zero:
113 // value is 0 for input and != 0 otherwise. note: the
114 // return value is 0 for <true> such that older versions
115 // will always return true.
118 case audioMasterWantMidi:
119 SHOW_CALLBACK ("amc: audioMasterWantMidi\n");
120 // <value> is a filter which is currently ignored
122 plug->get_info()->n_inputs.set_midi (1);
126 case audioMasterGetTime:
127 SHOW_CALLBACK ("amc: audioMasterGetTime\n");
128 // returns const VstTimeInfo* (or 0 if not supported)
129 // <value> should contain a mask indicating which fields are required
130 // (see valid masks above), as some items may require extensive
132 memset(&_timeInfo, 0, sizeof(_timeInfo));
134 framepos_t now = session->transport_frame();
135 _timeInfo.samplePos = now;
136 _timeInfo.sampleRate = session->frame_rate();
139 const TempoMetric& tm (session->tempo_map().metric_at (now));
141 if (value & (kVstTempoValid)) {
142 const Tempo& t (tm.tempo());
143 _timeInfo.tempo = t.beats_per_minute ();
144 _timeInfo.flags |= (kVstTempoValid);
146 if (value & (kVstBarsValid)) {
147 const Meter& m (tm.meter());
148 _timeInfo.timeSigNumerator = m.divisions_per_bar ();
149 _timeInfo.timeSigDenominator = m.note_divisor ();
150 _timeInfo.flags |= (kVstBarsValid);
152 if (value & (kVstPpqPosValid)) {
153 Timecode::BBT_Time bbt;
155 session->tempo_map().bbt_time_rt (now, bbt);
157 /* Note that this assumes constant
158 meter/tempo throughout the session. We
159 can do better than this, because
160 progressive rock fans demand it.
162 double ppqBar = double(bbt.bars - 1) * tm.meter().divisions_per_bar();
163 double ppqBeat = double(bbt.beats - 1);
164 double ppqTick = double(bbt.ticks) / Timecode::BBT_Time::ticks_per_beat;
166 _timeInfo.ppqPos = ppqBar + ppqBeat + ppqTick;
167 _timeInfo.flags |= (kVstPpqPosValid);
173 _timeInfo.tempo = tm.tempo().beats_per_minute();
174 _timeInfo.flags |= kVstTempoValid;
177 // _timeInfo.barStartPos = ppqBar;
178 // _timeInfo.flags |= kVstBarsValid;
181 _timeInfo.timeSigNumerator = tm.meter().divisions_per_bar();
182 _timeInfo.timeSigDenominator = tm.meter().note_divisor();
183 _timeInfo.flags |= kVstTimeSigValid;
185 if (session->transport_speed() != 0.0f) {
186 _timeInfo.flags |= kVstTransportPlaying;
190 return (long)&_timeInfo;
192 case audioMasterProcessEvents:
193 SHOW_CALLBACK ("amc: audioMasterProcessEvents\n");
194 // VstEvents* in <ptr>
197 case audioMasterSetTime:
198 SHOW_CALLBACK ("amc: audioMasterSetTime\n");
199 // VstTimenfo* in <ptr>, filter in <value>, not supported
201 case audioMasterTempoAt:
202 SHOW_CALLBACK ("amc: audioMasterTempoAt\n");
203 // returns tempo (in bpm * 10000) at sample frame location passed in <value>
205 const Tempo& t (session->tempo_map().tempo_at (value));
206 return t.beats_per_minute() * 1000;
212 case audioMasterGetNumAutomatableParameters:
213 SHOW_CALLBACK ("amc: audioMasterGetNumAutomatableParameters\n");
216 case audioMasterGetParameterQuantization:
217 SHOW_CALLBACK ("amc: audioMasterGetParameterQuantization\n");
218 // returns the integer value for +1.0 representation,
219 // or 1 if full single float precision is maintained
220 // in automation. parameter index in <value> (-1: all, any)
223 case audioMasterIOChanged:
224 SHOW_CALLBACK ("amc: audioMasterIOChanged\n");
225 // numInputs and/or numOutputs has changed
228 case audioMasterNeedIdle:
229 SHOW_CALLBACK ("amc: audioMasterNeedIdle\n");
230 // plug needs idle calls (outside its editor window)
232 plug->state()->wantIdle = 1;
236 case audioMasterSizeWindow:
237 SHOW_CALLBACK ("amc: audioMasterSizeWindow\n");
238 // index: width, value: height
241 case audioMasterGetSampleRate:
242 SHOW_CALLBACK ("amc: audioMasterGetSampleRate\n");
244 return session->frame_rate();
248 case audioMasterGetBlockSize:
249 SHOW_CALLBACK ("amc: audioMasterGetBlockSize\n");
251 return session->get_block_size();
255 case audioMasterGetInputLatency:
256 SHOW_CALLBACK ("amc: audioMasterGetInputLatency\n");
259 case audioMasterGetOutputLatency:
260 SHOW_CALLBACK ("amc: audioMasterGetOutputLatency\n");
263 case audioMasterGetPreviousPlug:
264 SHOW_CALLBACK ("amc: audioMasterGetPreviousPlug\n");
265 // input pin in <value> (-1: first to come), returns cEffect*
268 case audioMasterGetNextPlug:
269 SHOW_CALLBACK ("amc: audioMasterGetNextPlug\n");
270 // output pin in <value> (-1: first to come), returns cEffect*
272 case audioMasterWillReplaceOrAccumulate:
273 SHOW_CALLBACK ("amc: audioMasterWillReplaceOrAccumulate\n");
274 // returns: 0: not supported, 1: replace, 2: accumulate
277 case audioMasterGetCurrentProcessLevel:
278 SHOW_CALLBACK ("amc: audioMasterGetCurrentProcessLevel\n");
279 // returns: 0: not supported,
280 // 1: currently in user thread (gui)
281 // 2: currently in audio thread (where process is called)
282 // 3: currently in 'sequencer' thread (midi, timer etc)
283 // 4: currently offline processing and thus in user thread
284 // other: not defined, but probably pre-empting user thread.
287 case audioMasterGetAutomationState:
288 SHOW_CALLBACK ("amc: audioMasterGetAutomationState\n");
289 // returns 0: not supported, 1: off, 2:read, 3:write, 4:read/write
293 case audioMasterOfflineStart:
294 SHOW_CALLBACK ("amc: audioMasterOfflineStart\n");
297 case audioMasterOfflineRead:
298 SHOW_CALLBACK ("amc: audioMasterOfflineRead\n");
299 // ptr points to offline structure, see below. return 0: error, 1 ok
302 case audioMasterOfflineWrite:
303 SHOW_CALLBACK ("amc: audioMasterOfflineWrite\n");
307 case audioMasterOfflineGetCurrentPass:
308 SHOW_CALLBACK ("amc: audioMasterOfflineGetCurrentPass\n");
311 case audioMasterOfflineGetCurrentMetaPass:
312 SHOW_CALLBACK ("amc: audioMasterOfflineGetCurrentMetaPass\n");
315 case audioMasterSetOutputSampleRate:
316 SHOW_CALLBACK ("amc: audioMasterSetOutputSampleRate\n");
317 // for variable i/o, sample rate in <opt>
320 case audioMasterGetSpeakerArrangement:
321 SHOW_CALLBACK ("amc: audioMasterGetSpeakerArrangement\n");
322 // (long)input in <value>, output in <ptr>
325 case audioMasterGetVendorString:
326 SHOW_CALLBACK ("amc: audioMasterGetVendorString\n");
327 // fills <ptr> with a string identifying the vendor (max 64 char)
328 strcpy ((char*) ptr, "Linux Audio Systems");
331 case audioMasterGetProductString:
332 SHOW_CALLBACK ("amc: audioMasterGetProductString\n");
333 // fills <ptr> with a string with product name (max 64 char)
334 strcpy ((char*) ptr, PROGRAM_NAME);
337 case audioMasterGetVendorVersion:
338 SHOW_CALLBACK ("amc: audioMasterGetVendorVersion\n");
339 // returns vendor-specific version
342 case audioMasterVendorSpecific:
343 SHOW_CALLBACK ("amc: audioMasterVendorSpecific\n");
344 // no definition, vendor specific handling
347 case audioMasterSetIcon:
348 SHOW_CALLBACK ("amc: audioMasterSetIcon\n");
349 // void* in <ptr>, format not defined yet
352 case audioMasterCanDo:
353 SHOW_CALLBACK ("amc: audioMasterCanDo\n");
354 // string in ptr, see below
357 case audioMasterGetLanguage:
358 SHOW_CALLBACK ("amc: audioMasterGetLanguage\n");
362 case audioMasterOpenWindow:
363 SHOW_CALLBACK ("amc: audioMasterOpenWindow\n");
364 // returns platform specific ptr
367 case audioMasterCloseWindow:
368 SHOW_CALLBACK ("amc: audioMasterCloseWindow\n");
369 // close window, platform specific handle in <ptr>
372 case audioMasterGetDirectory:
373 SHOW_CALLBACK ("amc: audioMasterGetDirectory\n");
374 // get plug directory, FSSpec on MAC, else char*
377 case audioMasterUpdateDisplay:
378 SHOW_CALLBACK ("amc: audioMasterUpdateDisplay\n");
379 // something has changed, update 'multi-fx' display
381 effect->dispatcher(effect, effEditIdle, 0, 0, NULL, 0.0f);
385 case audioMasterBeginEdit:
386 SHOW_CALLBACK ("amc: audioMasterBeginEdit\n");
387 // begin of automation session (when mouse down), parameter index in <index>
390 case audioMasterEndEdit:
391 SHOW_CALLBACK ("amc: audioMasterEndEdit\n");
392 // end of automation session (when mouse up), parameter index in <index>
395 case audioMasterOpenFileSelector:
396 SHOW_CALLBACK ("amc: audioMasterOpenFileSelector\n");
397 // open a fileselector window with VstFileSelect* in <ptr>
401 SHOW_CALLBACK ("VST master dispatcher: undefed: %d\n", opcode);