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1 <html>
2 <head>
3 <meta name="author" content="Christian Schoenebeck">
4 <title>NKSP Reference</title>
5 <urlpath>Reference</urlpath>
6 <navpath>Reference Manual</navpath>
7 <meta name="description" content="Reference documentation of the NKSP real-time instrument script language.">
8 <autolink term="standard unit" to="01_nksp_real_unit_final.html#units"/>
9 <autolink term="finalness" to="01_nksp_real_unit_final.html#finalness"/>
10 </head>
11 <body>
12 <h1>NKSP Reference</h1>
13 <p>
14 This document gives you an overview of all built-in functions and built-in
15 variables provided by the NKSP real-time instrument script language.
16 If you are new to NKSP, then you may want to read the
17 <a href="01_nksp.html">NKSP language tour</a> first.
18 </p>
19
20 <h2>Built-In Functions</h2>
21 <p>
22 These are the built-in functions available with the NKSP real-time
23 instrument script language.
24 </p>
25
26 <h3>Core Language Functions</h3>
27 <p>
28 Most fundamental NKSP functions, independent from any purpose of being used in a sampler.
29 </p>
30 <table>
31 <tr>
32 <th>Function</th> <th>Description</th>
33 </tr>
34 <tr>
35 <td><code lang="nksp">abort()</code></td>
36 <td>Stops execution of a script callback.</td>
37 </tr>
38 <tr>
39 <td><code lang="nksp">acos()</code></td>
40 <td>Arc cosine function.</td>
41 </tr>
42 <tr>
43 <td><code>abs()</code></td>
44 <td>Calculates the absolute value of a given value.</td>
45 </tr>
46 <tr>
47 <td><code lang="nksp">array_equal()</code></td>
48 <td>Check whether two arrays are equal.</td>
49 </tr>
50 <tr>
51 <td><code>asin()</code></td>
52 <td>Arc sine function.</td>
53 </tr>
54 <tr>
55 <td><code>atan()</code></td>
56 <td>Arc tangens function.</td>
57 </tr>
58 <tr>
59 <td><code>callback_status()</code></td>
60 <td>Returns the current status of a callback (thread).</td>
61 </tr>
62 <tr>
63 <td><code>ceil()</code></td>
64 <td>Rounds the given real number up.</td>
65 </tr>
66 <tr>
67 <td><code>cos()</code></td>
68 <td>Cosine function.</td>
69 </tr>
70 <tr>
71 <td><code lang="nksp">dec()</code></td>
72 <td>Decrements the passed integer variable by one.</td>
73 </tr>
74 <tr>
75 <td><code>exit()</code></td>
76 <td>Stops execution of the current event handler instance.</td>
77 </tr>
78 <tr>
79 <td><code>exp()</code></td>
80 <td>Calculates e raised by given power.</td>
81 </tr>
82 <tr>
83 <td><code>floor()</code></td>
84 <td>Rounds the given real number down.</td>
85 </tr>
86 <tr>
87 <td><code>fork()</code></td>
88 <td>Creates new execution instances (threads).</td>
89 </tr>
90 <tr>
91 <td><code>inc()</code></td>
92 <td>Increments the passed integer variable by one.</td>
93 </tr>
94 <tr>
95 <td><code>int()</code></td>
96 <td>Short-hand alias function for function <code>real_to_int()</code>.</td>
97 </tr>
98 <tr>
99 <td><code>int_to_real()</code></td>
100 <td>Type cast from integer number to real number.</td>
101 </tr>
102 <tr>
103 <td><code>in_range()</code></td>
104 <td>Checks whether a value is between two other values.</td>
105 </tr>
106 <tr>
107 <td><code>log()</code></td>
108 <td>Calculates the natural logarithm of given number.</td>
109 </tr>
110 <tr>
111 <td><code>log10()</code></td>
112 <td>Calculates the logarithm to base 10 of given number.</td>
113 </tr>
114 <tr>
115 <td><code>log2()</code></td>
116 <td>Calculates the logarithm to base 2 of given number.</td>
117 </tr>
118 <tr>
119 <td><code>lsb()</code></td>
120 <td>Returns least significant byte of a 14 bit value.</td>
121 </tr>
122 <tr>
123 <td><code>max()</code></td>
124 <td>Calculates the maximum value of two given values.</td>
125 </tr>
126 <tr>
127 <td><code lang="nksp">message()</code></td>
128 <td>Prints text to the sampler's terminal.</td>
129 </tr>
130 <tr>
131 <td><code>min()</code></td>
132 <td>Calculates the minimum value of two given values.</td>
133 </tr>
134 <tr>
135 <td><code>msb()</code></td>
136 <td>Returns most significant byte of a 14-bit value.</td>
137 </tr>
138 <tr>
139 <td><code>num_elements()</code></td>
140 <td>Returns the size of the requested array variable.</td>
141 </tr>
142 <tr>
143 <td><code>pow()</code></td>
144 <td>Calculates given base raised by given power.</td>
145 </tr>
146 <tr>
147 <td><code>random()</code></td>
148 <td>Random number generator.</td>
149 </tr>
150 <tr>
151 <td><code>real()</code></td>
152 <td>Short-hand alias function for function <code>int_to_real()</code>.</td>
153 </tr>
154 <tr>
155 <td><code>real_to_int()</code></td>
156 <td>Type cast from real number to integer number.</td>
157 </tr>
158 <tr>
159 <td><code>round()</code></td>
160 <td>Rounds the given real number.</td>
161 </tr>
162 <tr>
163 <td><code>search()</code></td>
164 <td>Search for a certain value within an array.</td>
165 </tr>
166 <tr>
167 <td><code>sh_left()</code></td>
168 <td>Calculates a left bit shifted value.</td>
169 </tr>
170 <tr>
171 <td><code>sh_right()</code></td>
172 <td>Calculates a right bit shifted value.</td>
173 </tr>
174 <tr>
175 <td><code>sin()</code></td>
176 <td>Sine function.</td>
177 </tr>
178 <tr>
179 <td><code>sort()</code></td>
180 <td>Sort the given array.</td>
181 </tr>
182 <tr>
183 <td><code>sqrt()</code></td>
184 <td>Calculates the square root of given number.</td>
185 </tr>
186 <tr>
187 <td><code>stop_wait()</code></td>
188 <td>Resumes execution of a suspended script callback.</td>
189 </tr>
190 <tr>
191 <td><code>tan()</code></td>
192 <td>Tangens function.</td>
193 </tr>
194 <tr>
195 <td><code>wait()</code></td>
196 <td>Pauses execution for a certain amount of time.</td>
197 </tr>
198 </table>
199
200 <h3>Common Sampler Functions</h3>
201 <p>
202 Basic sampler related functions, independent from a particular sampler
203 format or sampler engine.
204 </p>
205 <table>
206 <tr>
207 <th>Function</th> <th>Description</th>
208 </tr>
209 <tr>
210 <td><code>by_marks()</code></td>
211 <td>Returns all events of an event group.</td>
212 </tr>
213 <tr>
214 <td><code>change_amp_lfo_depth()</code></td>
215 <td>Modifies the amplitude LFO depth.</td>
216 </tr>
217 <tr>
218 <td><code>change_amp_lfo_freq()</code></td>
219 <td>Modifies the amplitude LFO frequency.</td>
220 </tr>
221 <tr>
222 <td><code>change_attack()</code></td>
223 <td>Modifies the amplitude attack time of voices.</td>
224 </tr>
225 <tr>
226 <td><code>change_cutoff()</code></td>
227 <td>Changes filter cutoff frequency of voices.</td>
228 </tr>
229 <tr>
230 <td><code>change_cutoff_attack()</code></td>
231 <td>Modifies the filter cutoff attack time of voices.</td>
232 </tr>
233 <tr>
234 <td><code>change_cutoff_decay()</code></td>
235 <td>Modifies the filter cutoff decay time of voices.</td>
236 </tr>
237 <tr>
238 <td><code>change_cutoff_lfo_depth()</code></td>
239 <td>Modifies the filter cutoff LFO depth.</td>
240 </tr>
241 <tr>
242 <td><code>change_cutoff_lfo_freq()</code></td>
243 <td>Modifies the filter cutoff LFO frequency.</td>
244 </tr>
245 <tr>
246 <td><code>change_cutoff_release()</code></td>
247 <td>Modifies the filter cutoff release time of voices.</td>
248 </tr>
249 <tr>
250 <td><code>change_cutoff_sustain()</code></td>
251 <td>Modifies the filter cutoff sustain level of voices.</td>
252 </tr>
253 <tr>
254 <td><code>change_decay()</code></td>
255 <td>Modifies the amplitude decay time of voices.</td>
256 </tr>
257 <tr>
258 <td><code>change_note()</code></td>
259 <td>Change MIDI note number of note.</td>
260 </tr>
261 <tr>
262 <td><code>change_pan()</code></td>
263 <td>Changes panning of voices (stereo balance).</td>
264 </tr>
265 <tr>
266 <td><code>change_pan_curve()</code></td>
267 <td>Changes the curve type of panning (stereo balance) changes.</td>
268 </tr>
269 <tr>
270 <td><code>change_pan_time()</code></td>
271 <td>Changes the duration of panning (stereo balance) changes.</td>
272 </tr>
273 <tr>
274 <td><code>change_pitch_lfo_depth()</code></td>
275 <td>Modifies the pitch LFO depth.</td>
276 </tr>
277 <tr>
278 <td><code>change_pitch_lfo_freq()</code></td>
279 <td>Modifies the pitch LFO frequency.</td>
280 </tr>
281 <tr>
282 <td><code>change_play_pos()</code></td>
283 <td>Change the sample playback position.</td>
284 </tr>
285 <tr>
286 <td><code>change_release()</code></td>
287 <td>Modifies the amplitude release time of voices.</td>
288 </tr>
289 <tr>
290 <td><code>change_reso()</code></td>
291 <td>Changes filter resonance of voices.</td>
292 </tr>
293 <tr>
294 <td><code>change_sustain()</code></td>
295 <td>Modifies the amplitude sustain level of voices.</td>
296 </tr>
297 <tr>
298 <td><code>change_tune()</code></td>
299 <td>Changes the tuning of voices.</td>
300 </tr>
301 <tr>
302 <td><code>change_tune_curve()</code></td>
303 <td>Changes the curve type of tuning changes.</td>
304 </tr>
305 <tr>
306 <td><code>change_tune_time()</code></td>
307 <td>Changes the duration of tuning changes.</td>
308 </tr>
309 <tr>
310 <td><code>change_velo()</code></td>
311 <td>Change MIDI velocity of note.</td>
312 </tr>
313 <tr>
314 <td><code>change_vol()</code></td>
315 <td>Changes the volume of voices.</td>
316 </tr>
317 <tr>
318 <td><code>change_vol_curve()</code></td>
319 <td>Changes the curve type of volume changes.</td>
320 </tr>
321 <tr>
322 <td><code>change_vol_time()</code></td>
323 <td>Changes the duration of volume changes.</td>
324 </tr>
325 <tr>
326 <td><code>delete_event_mark()</code></td>
327 <td>Removes an event from some event group.</td>
328 </tr>
329 <tr>
330 <td><code>event_status()</code></td>
331 <td>Checks and returns whether a particular note is still alive.</td>
332 </tr>
333 <tr>
334 <td><code>fade_in()</code></td>
335 <td>Fade the requested note in.</td>
336 </tr>
337 <tr>
338 <td><code>fade_out()</code></td>
339 <td>Fade the requested note out.</td>
340 </tr>
341 <tr>
342 <td><code>get_event_par()</code></td>
343 <td>Get the current value of a specific note parameter.</td>
344 </tr>
345 <tr>
346 <td><code>ignore_controller()</code></td>
347 <td>Drops the given MIDI control change event.</td>
348 </tr>
349 <tr>
350 <td><code>ignore_event()</code></td>
351 <td>Drops the given event.</td>
352 </tr>
353 <tr>
354 <td><code>note_off()</code></td>
355 <td>Releases the requested note.</td>
356 </tr>
357 <tr>
358 <td><code>play_note()</code></td>
359 <td>Triggers a new note.</td>
360 </tr>
361 <tr>
362 <td><code>set_controller()</code></td>
363 <td>Creates a MIDI control change event.</td>
364 </tr>
365 <tr>
366 <td><code>set_event_mark()</code></td>
367 <td>Adds an event to an event group.</td>
368 </tr>
369 <tr>
370 <td><code>set_event_par()</code></td>
371 <td>Change the value of a specific note parameter.</td>
372 </tr>
373 </table>
374
375 <h3>GigaStudio Format Functions</h3>
376 <p>
377 Sampler format specific functions, dedicated to the individual features
378 of the GigaStudio format engine.
379 </p>
380 <table>
381 <tr>
382 <th>Function</th> <th>Description</th>
383 </tr>
384 <tr>
385 <td><code>gig_set_dim_zone()</code></td>
386 <td>Changes the currently active dimension zone.</td>
387 </tr>
388 <tr>
389 <td><code>same_region()</code></td>
390 <td>Check whether two keys are mapped to the same region.</td>
391 </tr>
392 </table>
393
394 <h2>Built-In Variables</h2>
395 <p>
396 These are the built-in variables and built-in constants available with the
397 NKSP realt-time instrument script language.
398 </p>
399
400 <h3>Core Language Variables</h3>
401 <p>
402 Most fundamental NKSP built-in variables, independent from any purpose of
403 being used in a sampler.
404 </p>
405 <table>
406 <tr>
407 <th>Variable</th> <th>Description</th>
408 </tr>
409 <tr>
410 <td><code>$CALLBACK_STATUS_QUEUE</code></td>
411 <td>Built-in constant reflecting the status of a callback to be
412 alive but suspended. See <code>callback_status()</code> for details.</td>
413 </tr>
414 <tr>
415 <td><code>$CALLBACK_STATUS_RUNNING</code></td>
416 <td>Built-in constant reflecting the status of a callback to be
417 alive and currently executing. See <code>callback_status()</code>
418 for details.</td>
419 </tr>
420 <tr>
421 <td><code>$CALLBACK_STATUS_TERMINATED</code></td>
422 <td>Built-in constant reflecting the status of a callback to be
423 not alive. See <code>callback_status()</code> for details.</td>
424 </tr>
425 <tr>
426 <td><code>$KSP_TIMER</code></td>
427 <td>Preserved for compatiblity reasons with KSP, returns the same value
428 as <code>$NKSP_REAL_TIMER</code> (refer to the latter for details).
429 Note that KSP's <code>reset_ksp_timer()</code> function is not available with
430 NKSP. However when calculating time differences between two time
431 stamps taken with <code>$NKSP_REAL_TIMER</code>, calling such a reset
432 function is not required, because the underlying clock does not stop
433 when it reached its value limit (which happens every 71 minutes), instead the clock
434 will automatically restart from zero and the calculated time difference
435 even between such transitions will reflect correct durations.</td>
436 </tr>
437 <tr>
438 <td><code>$NKSP_PERF_TIMER</code></td>
439 <td>Returns the current performance time stamp (in microseconds) of the
440 script running. You may read this variable from time to time to take
441 time stamps which can be used to calculate the time difference
442 (in microseconds) which elapsed between them. A performance time
443 stamp is based on the script's actual CPU execution time. So the
444 internal clock which is used for generating such time stamps is only
445 running forward if the respective script is actually executed by the
446 CPU. Whenever your script is not really executed by the CPU (i.e. because
447 your script got suspended by a wait() call or got forcely suspended due to
448 real-time constraints, or when the entire sampler application got suspended
449 by the OS for other applications or OS tasks) then the underlying internal
450 clock is paused as well.
451 <note class="important">
452 You should only use this built-in variable for script development
453 purposes (i.e. for bench marking the performance of your script).
454 You should <b>not</b> use it with your final production sounds!
455 It is not appropriate for being used in a musical context, because
456 when an offline bounce is performed for instance, the musical timing
457 will be completely unrelated to the CPU execution time. Plus using
458 this variable may cause audio drop outs on some systems. In a musical
459 context you should use <code>$ENGINE_UPTIME</code> instead, which is
460 also safe for offline bounces.
461 </note>
462 <note>
463 On some systems <code>$NKSP_REAL_TIMER</code> and
464 <code>$NKSP_PERF_TIMER</code> will actually return the same value. So the
465 difference between them is not implemented for all systems at the moment.
466 </note>
467 </td>
468 </tr>
469 <tr>
470 <td><code>%NKSP_CALLBACK_CHILD_ID[]</code></td>
471 <td>
472 Reflects the callback IDs of all child threads which the current
473 script callback instance spawned by having called <code>fork()</code> before.
474 See the latter function for details about this array variable.
475 </td>
476 </tr>
477 <tr>
478 <td><code>$NKSP_CALLBACK_PARENT_ID</code></td>
479 <td>
480 If the current execution thread is a child thread spawned by a <code>fork()</code>
481 call before, then this variable reflects the callback ID of the parent
482 thread which created this child thread. Otherwise this variable is <code>0</code>.
483 See <code>fork()</code> for more details about this variable.
484 </td>
485 </tr>
486 <tr>
487 <td><code>$NKSP_REAL_TIMER</code></td>
488 <td>Returns the current time stamp in reality (in microseconds). You may
489 read this variable from time to time to take
490 time stamps which can be used to calculate the time difference
491 (in microseconds) which elapsed between them. A "real" time
492 stamp is based on an internal clock which constantly proceeds, so this
493 internal clock also continues counting while your script is either suspended
494 (i.e. because your script got suspended by a wait() call or got forcely
495 suspended due to real-time constraints) and it also continues counting
496 even if the entire sampler application got suspended by the OS (i.e. to
497 execute other applications for multi-tasking or to perform OS tasks).
498 <note class="important">
499 You should only use this built-in variable for script development
500 purposes (i.e. for bench marking the performance of your script).
501 You should <b>not</b> use it with your final production sounds!
502 It is not appropriate for being used in a musical context, because
503 when an offline bounce is performed for instance, the musical timing
504 will be completely unrelated to the CPU execution time. Plus using
505 this variable may cause audio drop outs on some systems. In a musical
506 context you should use <code>$ENGINE_UPTIME</code> instead, which is
507 also safe for offline bounces.
508 </note>
509 <note>
510 On some systems <code>$NKSP_REAL_TIMER</code> and
511 <code>$NKSP_PERF_TIMER</code> will actually return the same value. So the
512 difference between them is not implemented for all systems at the moment.
513 </note>
514 </td>
515 </tr>
516 <tr>
517 <td><code>$NI_CALLBACK_ID</code></td>
518 <td>Reflects the current event handler instance's unique callback ID.
519 For the same event type there may be more than
520 one event handler instances running. Each one of them has
521 its own callback ID. You can get the current event handler
522 instance's callback ID by reading this built-in variable.</td>
523 </tr>
524 <tr>
525 <td><code>$NI_CALLBACK_TYPE</code></td>
526 <td>Reflects the event type of the current event handler. This variable
527 may reflect one of the following built-in constants:
528 <code>$NI_CB_TYPE_INIT</code>, <code>$NI_CB_TYPE_NOTE</code>,
529 <code>$NI_CB_TYPE_RELEASE</code>, <code>$NI_CB_TYPE_CONTROLLER</code>.</td>
530 </tr>
531 <tr>
532 <td><code>$NI_CB_TYPE_INIT</code></td>
533 <td>Built-in constant reflecting an <code>init</code> event handler type.</td>
534 </tr>
535 <tr>
536 <td><code>$NI_CB_TYPE_NOTE</code></td>
537 <td>Built-in constant reflecting a <code>note</code> event handler type.</td>
538 </tr>
539 <tr>
540 <td><code>$NI_CB_TYPE_RELEASE</code></td>
541 <td>Built-in constant reflecting a <code>release</code> event handler type.</td>
542 </tr>
543 <tr>
544 <td><code>$NI_CB_TYPE_CONTROLLER</code></td>
545 <td>Built-in constant reflecting a <code>controller</code> event handler type.</td>
546 </tr>
547 <tr>
548 <td><code>$NI_MATH_E</code></td>
549 <td>Base of the natural logarithm (approximately being <code>2.71828</code>)</td>
550 </tr>
551 <tr>
552 <td><code>$NI_MATH_PI</code></td>
553 <td>Natural constant reflecting the ratio of a circle's circumference to its diameter (approximately being <code>3.14159</code>).</td>
554 </tr>
555 <tr>
556 <td><code>$NKSP_IGNORE_WAIT</code></td>
557 <td>If this boolean built-in variable is <code>1</code> then all calls of your
558 event handler instance to function <code>wait()</code> will be ignored.
559 This may for example be the case if another event handler instance
560 resumed your paused script by calling <code>stop_wait()</code> and
561 passing <code>1</code> to the 2nd argument of that function.</td>
562 </tr>
563 </table>
564
565 <h3>Common Sampler Variables</h3>
566 <p>
567 Basic sampler related built-in variables and constants, independent from a
568 particular sampler format or sampler engine.
569 </p>
570 <table>
571 <tr>
572 <th>Variable</th> <th>Description</th>
573 </tr>
574 <tr>
575 <td><code>%ALL_EVENTS</code></td>
576 <td>
577 Note IDs of all currently active notes of the current sampler part (a.k.a. sampler channel).
578 This may be passed to many built-in functions like <code>note_off()</code>.
579 This array variable only contains IDs of notes which were launched due
580 to MIDI note-on events. This variable does not contain IDs of child notes
581 (i.e. notes which were launched programmatically by calling <code>play_note()</code>).
582 <note>
583 In contrast to KSP this variable is an integer array type, whereas KSP's
584 pendent of this built-in variable is an integer constant (scalar) called
585 <code>$ALL_EVENTS</code>. Using the latter with NKSP will cause a
586 parser warning, the behavior will be the same though.
587 </note>
588 </td>
589 </tr>
590 <tr>
591 <td><code>$CC_NUM</code></td>
592 <td>MIDI controller number that caused the <code>controller</code>
593 handler to be executed (only useful in the context of a
594 <code>controller</code> handler).</td>
595 </tr>
596 <tr>
597 <td><code>%CC[]</code></td>
598 <td>Provides access to all current MIDI controller values. This can be
599 used in any context. Use the respective MIDI controller number as
600 index to this integer array variable. For instance <code>%CC[1]</code>
601 would give you the current value of the modulation wheel.
602 </td>
603 </tr>
604 <tr>
605 <td><code>$EVENT_ID</code></td>
606 <td>ID of the event that caused the current event handler to be executed. In
607 the context of a <code>note</code> handler this would be the event
608 ID of the note, within a <code>controller</code> handler it would
609 be the controller event ID, etc.</td>
610 </tr>
611 <tr>
612 <td><code>$EVENT_NOTE</code></td>
613 <td>MIDI note number that caused a note related
614 handler to be executed (only useful in the context of a
615 <code>note</code> or <code>release</code> handler).</td>
616 </tr>
617 <tr>
618 <td><code>$EVENT_VELOCITY</code></td>
619 <td>MIDI velocity value of the note that caused that note related
620 handler to be executed (only useful in the context of a
621 <code>note</code> or <code>release</code> handler).</td>
622 </tr>
623 <tr>
624 <td><code>$EVENT_STATUS_INACTIVE</code></td>
625 <td>Constant bit flag used as possible return value by
626 <code>event_status()</code> in case the requested
627 note is not "alive".</td>
628 </tr>
629 <tr>
630 <td><code>$EVENT_STATUS_NOTE_QUEUE</code></td>
631 <td>Constant bit flag used as possible return value by
632 <code>event_status()</code> in case the requested
633 note is still "alive".</td>
634 </tr>
635 <tr>
636 <td><code>$EVENT_PAR_NOTE</code></td>
637 <td>Constant value symbolizing the "note number" parameter. See
638 <code>get_event_par()</code> and <code>set_event_par()</code>
639 for details.</td>
640 </tr>
641 <tr>
642 <td><code>$EVENT_PAR_TUNE</code></td>
643 <td>Constant value symbolizing the "tune" parameter. See
644 <code>get_event_par()</code> and <code>set_event_par()</code>
645 for details.</td>
646 </tr>
647 <tr>
648 <td><code>$EVENT_PAR_VELOCITY</code></td>
649 <td>Constant value symbolizing the "note velocity" parameter. See
650 <code>get_event_par()</code> and <code>set_event_par()</code>
651 for details.</td>
652 </tr>
653 <tr>
654 <td><code>$EVENT_PAR_VOLUME</code></td>
655 <td>Constant value symbolizing the "volume" parameter. See
656 <code>get_event_par()</code> and <code>set_event_par()</code>
657 for details.</td>
658 </tr>
659 <tr>
660 <td><code>$EVENT_PAR_0</code> to <code>$EVENT_PAR_3</code></td>
661 <td>Four constant values symbolizing the 4 possible user specific
662 parameters, which i.e. might be used to pass data from one script
663 (slot) to another script (slot). See <code>get_event_par()</code>
664 and <code>set_event_par()</code> for details.</td>
665 </tr>
666 <tr>
667 <td><code>%KEY_DOWN[]</code></td>
668 <td>This can be used in any context to check whether a certain MIDI
669 key is currently pressed down. Use the respective MIDI note number
670 as index to this array variable (see also <code>event_status()</code>).</td>
671 </tr>
672 <tr>
673 <td><code>$NKSP_EASE_IN_EASE_OUT</code></td>
674 <td>Used to select a fade curve with "ease in and ease out" shape.</td>
675 </tr>
676 <tr>
677 <td><code>$NKSP_LINEAR</code></td>
678 <td>Used to select a fade curve with linear shape.</td>
679 </tr>
680 <tr>
681 <td><code>$VCC_MONO_AT</code></td>
682 <td>Constant identifying the MIDI monophonic aftertouch controller (also
683 called <i title="Amount of force on held-down key.">
684 MIDI channel pressure
685 </i>). This is somewhat different than in the MIDI standard. With
686 NKSP aftertouch is handled like an additional "regular" MIDI CC controller.
687 Therefore use
688 <code>%CC[$VCC_MONO_AT]</code> to obtain the current aftertouch value
689 in the context of a <code>controller</code> event handler.
690 </td>
691 </tr>
692 <tr>
693 <td><code>$VCC_PITCH_BEND</code></td>
694 <td>Constant identifying the pitch bend wheel controller.
695 This is somewhat different than in the MIDI standard. With
696 NKSP pitch bend is handled like an additional "regular" MIDI CC controller.
697 Therefore use
698 <code>%CC[$VCC_PITCH_BEND]</code> to obtain the current pitch bend wheel value
699 in the context of a <code>controller</code> event handler.</td>
700 </tr>
701 <tr>
702 <td><code>$MARK_1</code> to <code>$MARK_28</code></td>
703 <td>Used to select one of the available 28 event groups.
704 See <code>set_event_mark()</code> for details.</td>
705 </tr>
706 <tr>
707 <td><code>$ENGINE_UPTIME</code></td>
708 <td>Returns the current time stamp (in milliseconds) for being
709 used in a musical context. You may read this variable from time to time
710 to take time stamps which can be used to calculate the time difference
711 (in milliseconds) which elapsed between them. These timing values are
712 based on the internal sample rate and thus it can safely be used to
713 perform musical timing related tasks in your scripts. Especially
714 your script will also continue to behave correctly when an offline bounce
715 of a song is performed.
716 </td>
717 </tr>
718 </table>
719
720 <h3>GigaStudio Format Variables</h3>
721 <p>
722 Sampler format specific built-in variables and constants, dedicated to the
723 individual features of the GigaStudio format engine.
724 </p>
725 <table>
726 <tr>
727 <th>Variable</th> <th>Description</th>
728 </tr>
729 <tr>
730 <td><code>$GIG_DIM_CHANNEL</code></td>
731 <td>Constant that identifies the <i>stereo dimension</i>.</td>
732 </tr>
733 <tr>
734 <td><code>$GIG_DIM_LAYER</code></td>
735 <td>Constant that identifies the <i>layer dimension</i>.</td>
736 </tr>
737 <tr>
738 <td><code>$GIG_DIM_VELOCITY</code></td>
739 <td>Constant that identifies the <i>velocity dimension</i>.</td>
740 </tr>
741 <tr>
742 <td><code>$GIG_DIM_AFTERTOUCH</code></td>
743 <td>Constant that identifies the <i>aftertouch dimension</i>.</td>
744 </tr>
745 <tr>
746 <td><code>$GIG_DIM_RELEASE</code></td>
747 <td>Constant that identifies the <i>release trigger dimension</i>.</td>
748 </tr>
749 <tr>
750 <td><code>$GIG_DIM_KEYBOARD</code></td>
751 <td>Constant that identifies the <i>keyboard position dimension</i>.</td>
752 </tr>
753 <tr>
754 <td><code>$GIG_DIM_ROUNDROBIN</code></td>
755 <td>Constant that identifies the <i>round robin dimension</i>.</td>
756 </tr>
757 <tr>
758 <td><code>$GIG_DIM_RANDOM</code></td>
759 <td>Constant that identifies the <i>random dimension</i>.</td>
760 </tr>
761 <tr>
762 <td><code>$GIG_DIM_SMARTMIDI</code></td>
763 <td>Constant that identifies the <i>start MIDI dimension</i> (a.k.a iMIDI rules).</td>
764 </tr>
765 <tr>
766 <td><code>$GIG_DIM_ROUNDROBINKEY</code></td>
767 <td>Constant that identifies the <i>round robin key dimension</i>.</td>
768 </tr>
769 <tr>
770 <td><code>$GIG_DIM_MODWHEEL</code></td>
771 <td>Constant that identifies the <i>modulation wheel dimension</i>.</td>
772 </tr>
773 <tr>
774 <td><code>$GIG_DIM_SUSTAIN</code></td>
775 <td>Constant that identifies the <i>sustain pedal dimension</i> (a.k.a. hold pedal).</td>
776 </tr>
777 <tr>
778 <td><code>$GIG_DIM_PORTAMENTO</code></td>
779 <td>Constant that identifies the <i>portamento MIDI controller dimension</i>.</td>
780 </tr>
781 <tr>
782 <td><code>$GIG_DIM_SOSTENUTO</code></td>
783 <td>Constant that identifies the <i>sostenuto MIDI controller dimension</i>.</td>
784 </tr>
785 <tr>
786 <td><code>$GIG_DIM_SOFT</code></td>
787 <td>Constant that identifies the <i>soft pedal dimension</i>.</td>
788 </tr>
789 <tr>
790 <td><code>$GIG_DIM_BREATH</code></td>
791 <td>Constant that identifies the <i>breath controller dimension</i>.</td>
792 </tr>
793 <tr>
794 <td><code>$GIG_DIM_FOOT</code></td>
795 <td>Constant that identifies the <i>foot pedal dimension</i>.</td>
796 </tr>
797 <tr>
798 <td><code>$GIG_DIM_PORTAMENTOTIME</code></td>
799 <td>Constant that identifies the <i>portamento time controller dimension</i>.</td>
800 </tr>
801 <tr>
802 <td><code>$GIG_DIM_EFFECT1</code></td>
803 <td>Constant that identifies the <i>effect 1 MIDI controller dimension</i>.</td>
804 </tr>
805 <tr>
806 <td><code>$GIG_DIM_EFFECT2</code></td>
807 <td>Constant that identifies the <i>effect 2 MIDI controller dimension</i>.</td>
808 </tr>
809 <tr>
810 <td><code>$GIG_DIM_EFFECT1DEPTH</code></td>
811 <td>Constant that identifies the <i>effect 1 depth MIDI controller dimension</i>.</td>
812 </tr>
813 <tr>
814 <td><code>$GIG_DIM_EFFECT2DEPTH</code></td>
815 <td>Constant that identifies the <i>effect 2 depth MIDI controller dimension</i>.</td>
816 </tr>
817 <tr>
818 <td><code>$GIG_DIM_EFFECT3DEPTH</code></td>
819 <td>Constant that identifies the <i>effect 3 depth MIDI controller dimension</i>.</td>
820 </tr>
821 <tr>
822 <td><code>$GIG_DIM_EFFECT4DEPTH</code></td>
823 <td>Constant that identifies the <i>effect 4 depth MIDI controller dimension</i>.</td>
824 </tr>
825 <tr>
826 <td><code>$GIG_DIM_EFFECT5DEPTH</code></td>
827 <td>Constant that identifies the <i>effect 5 depth MIDI controller dimension</i>.</td>
828 </tr>
829 <tr>
830 <td><code>$GIG_DIM_GENPURPOSE1</code></td>
831 <td>Constant that identifies the <i>general purpose 1 MIDI controller dimension</i>.</td>
832 </tr>
833 <tr>
834 <td><code>$GIG_DIM_GENPURPOSE2</code></td>
835 <td>Constant that identifies the <i>general purpose 2 MIDI controller dimension</i>.</td>
836 </tr>
837 <tr>
838 <td><code>$GIG_DIM_GENPURPOSE3</code></td>
839 <td>Constant that identifies the <i>general purpose 3 MIDI controller dimension</i>.</td>
840 </tr>
841 <tr>
842 <td><code>$GIG_DIM_GENPURPOSE4</code></td>
843 <td>Constant that identifies the <i>general purpose 4 MIDI controller dimension</i>.</td>
844 </tr>
845 <tr>
846 <td><code>$GIG_DIM_GENPURPOSE5</code></td>
847 <td>Constant that identifies the <i>general purpose 5 MIDI controller dimension</i>.</td>
848 </tr>
849 <tr>
850 <td><code>$GIG_DIM_GENPURPOSE6</code></td>
851 <td>Constant that identifies the <i>general purpose 6 MIDI controller dimension</i>.</td>
852 </tr>
853 <tr>
854 <td><code>$GIG_DIM_GENPURPOSE7</code></td>
855 <td>Constant that identifies the <i>general purpose 7 MIDI controller dimension</i>.</td>
856 </tr>
857 <tr>
858 <td><code>$GIG_DIM_GENPURPOSE8</code></td>
859 <td>Constant that identifies the <i>general purpose 8 MIDI controller dimension</i>.</td>
860 </tr>
861 </table>
862
863 <h2>Built-In Preprocessor Conditions</h2>
864 <p>
865 These are the built-in preprocessor conditions available with the NKSP realt-time
866 instrument script language.
867 </p>
868
869 <h3>Core Language Preprocessor Conditions</h3>
870 <p>
871 Most fundamental NKSP built-in preprocessor conditions, independent from
872 any purpose of being used in a sampler.
873 </p>
874 <table>
875 <tr>
876 <th>Condition</th> <th>Description</th>
877 </tr>
878 <tr>
879 <td><code>NKSP_NO_MESSAGE</code></td>
880 <td>
881 By default this condition is not set. By explicitly enabling this
882 condition with <code>SET_CONDITION(NKSP_NO_MESSAGE)</code> it
883 causes all subsequent <code>message()</code> calls to be ignored
884 and filtered out on preprocessor level. See function <code>message()</code>
885 for details.
886 </td>
887 </tr>
888 </table>
889
890 </body>
891 </html>

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