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revision 2568 by schoenebeck, Tue May 20 14:53:06 2014 UTC revision 3987 by schoenebeck, Wed Aug 4 18:06:34 2021 UTC
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1  Version CVS HEAD (?)  Version SVN trunk (?)
2    
3      * Real-time instrument scripts:
4        - Fix: Do not share compiled instrument scripts among multiple engine
5          channels (sampler parts) as this can lead to crashes and would allow the
6          same global script variables to be accessible from multiple engine
7          channels which would not be the expected behaviour by instrument script
8          authors.
9    
10      * GigaStudio/Gigasampler format engine:
11        - Use libgig's new IO-per-thread feature to avoid file I/O concurrency
12          issues with .gig file.
13        - Use libgig's new method gig::File::GetSample() with method
14          gig::File::CountSamples() instead of now deprecated
15          gig::File::GetFirstSample() / gig::File::GetNextSample() pair.
16        - Use libgig's new method gig::Instrument::GetRegionAt() with method
17          gig::Instrument:CountRegions() instead of now deprecated
18          gig::Instrument::GetFirstRegion() / gig::Instrument::GetNextRegion() pair.
19        - Use libgig's gig::File::GetInstrument() method with method
20          gig::File::CountInstruments() instead of now deprecated
21          gig::File::GetFirstInstrument() / gig::File::GetNextInstrument() pair.
22    
23      * MIDI driver:
24        - VirtualMidiDevice: added method Reset() which is e.g. intended to be used
25          in "panic" / MIDI "all sound off" / MIDI "all note off" situations.
26        - VirtualMidiDevice: release all notes on MIDI CC #120 and CC #123.
27    
28    Version 2.2.0 (9 May 2021)
29    
30      * general changes:
31        - Fixed compiler error in Pool.h.
32        - Require C++14 compiler support.
33        - Autoconf: Added m4/ax_cxx_compile_stdcxx.m4 macro which is used
34          for checking in configure for C++14 support (as mandatory
35          requirement) and automatically adds compiler argument if required
36          (e.g. -std=C++14).
37        - RTMath: Implemented floating point comparison methods
38          fEqual32(float,float) and fEqual64(double,double) which take the
39          expected floating point tolerances into account.
40        - Added public API C++ class "LFO", which is a cluster class encapsulating
41          all the sampler's LFO implementations to be used by 3rd party applications
42          (e.g. by Gigedit).
43        - Added int math square LFO implementation.
44        - Added int math saw LFO implementation.
45        - Added numeric complex nr sine LFO implementation.
46        - Marked class LFOTriangleDiHarmonic as deprecated
47          (will be removed in future).
48        - Added LFOAll.h which includes all LFO implementation's header files.
49        - Refactored LFO class names and their file names (PulseLFO -> LFOPulse,
50          LFOSawIntMath -> LFOSawIntMathNew, SawLFO -> LFOSawIntMathOld,
51          SineLFO -> LFOSineBuiltinFn, LFOSine -> LFOSineNumericComplexNr,
52          SquareLFO -> LFOSquarePulse and separated the latter to its own header
53          file).
54        - Renamed type LFOSigned -> LFOTriangleSigned.
55        - Renamed type LFOUnsigned -> LFOTriangleUnsigned.
56        - Using now cubic interpolation as resampling algorithm by default; and
57          linear interpolation is deprecated now.
58        - Event:Init(): memset() entire Event::Param union to zero instead of trying
59          to do that for its individual members; the latter became error prone due
60          to the union's growing complexity meanwhile.
61        - EngineChannel: Overhaul of RPN/NRPN related methods: Added new
62          *Rpn*Parameter*() methods as replacement for previous *Rpn*Controller*()
63          methods and marked the old ones as deprecated; and likewise added new
64          *Nrpn*Parameter*() methods as replacement for previous *Nrpn*Controller*()
65          methods and marked those old ones deprecated as well.
66        - Added support for MIDI CC #38 (data entry LSB): this allows higher value
67          resolution for certain (e.g. hard coded) RPN and NRPN parameters.
68        - Implemented support for compressed RPN/NRPN message sequences (that is to
69          allow processing MIDI data entry messages without always having to be
70          preceded strictly by RPN/NRPN parameter selection messages on each value
71          change).
72        - Added support for MIDI CC #96 (data increment) and MIDI CC #97 (data
73          decrement).
74        - Added support for 'null function RPN/NRPN' (which is RPN/NRPN parameter
75          MSB=127 and LSB=127) and which is disabling subsequent data
76          entry/increment/decrement CC messages.
77        - Fixed crash when editing key groups (a.k.a. exclusive groups) with an
78          instrument editor.
79        - Fixed playing noise at the end of a disk stream under certain conditions.
80        - Fixed potential crash with high pitch at end of RAM playback.
81        - Added configure checks whether C++ compiler supports so called
82          'designated initializers'.
83        - Added global backtraceAsString() function for debugging purposes
84          (POSIX systems only, no Windows implementation yet).
85        - Thread class: Added new methods pushCancelable(), popCancelable(), name(),
86          nameOfCaller() and setNameOfCaller().
87        - configure: Always check for availability of pthread_testcancel() and use
88          it if so (previously it was only used if explicitly enabled by configure
89          option).
90        - Thread class: raise compiler warning if pthread_testcancel() is not
91          available, because it can lead to deadlocks.
92        - Mutex class: Implemented optional bug detection and deadlock debugging
93          features.
94        - Ref<> class is now thread safe (as lock-free and wait-free
95          implementation).
96        - Fixed compilation error with Bison >= 3.6.0.
97        - Fixed rare crash when switching between instruments that had instrument
98          scripts loaded.
99        - Allow EffectChain::InsertEffect() as alternative to
100          EffectChain::AppendEffect() (i.e. with index equal to current chain size).
101        - ConstCapacityArray class: Fixed bug in remove() method.
102        - Fixed crash on certain MIDI RPN and NRPN messages that occurred if no
103          real-time instrument script was loaded.
104    
105      * Real-time instrument scripts:
106        - Added method ScriptVM::setExitResultEnabled() which allows to
107          explicitly enable the built-in exit() function to optionally accept
108          one function argument; the value of the passed exit() function
109          argument will then become available by calling
110          VMExecContext::exitResult() after script execution.
111        - 64 bit support for NKSP integer scripts variables (declare $foo).
112        - Variable names, function names and preprocessor condition names must start
113          with a regular character (a-z or A-Z); starting them with a digit or
114          underscore is not allowed.
115        - NKSP parser fix: equal comparison operator "=" and not equal comparison
116          operator "#" must only accept integer operands.
117        - NKSP language: Implemented support for standard units like Hertz, seconds,
118          Bel including support for metric unit prefixes; so one can now e.g.
119          conveniently use numbers in scripts like "5us" meaning "5 microseconds",
120          or e.g. "12kHz" meaning "12 kilo Hertz", or e.g. "-14mdB" meaning
121          "minus 14 Millidecibel", or e.g. "28c" meaning "28 cents" (for tuning).
122        - NKSP language: Introduced "final" operator "!" which is specifically
123          intended for synthesis parameter values to denote that the synthesis
124          parameter value is intended to be the "final" value for that synthesis
125          parameter that should explicitly be used by the engine and thus causing
126          the sampler engine to ignore all other modulation sources for the same
127          synthesis parameter (like e.g. LFO, EG); by simply prefixing a value,
128          variable or formula with this new "!" operator the expression is marked as
129          being "final".
130        - NKSP script editor API: Added support for detecting standard unit tokens
131          and their potential metric prefix token.
132        - NKSP language: Added support for NKSP real number literals and
133          arithmetic operations on them (e.g. "(3.9 + 2.9) / 12.3 - 42.0").
134        - NKSP language: Added support for NKSP real number (floating point) script
135          variables (declare ~foo).
136        - NKSP language: Added support for NKSP real number (floating point) array
137          script variables (declare ?foo[]).
138        - Built-in script function "message()" accepts now real number argument as
139          well.
140        - Added built-in script function "real_to_int()" and its short hand form
141          "int()" for casting from real number to integer in NKSP scripts.
142        - Added built-in script function "int_to_real()" and its short hand form
143          "real()" for casting from integer to real number in NKSP scripts.
144        - Allow built-in exit() function to potentially accept real number type
145          argument as well.
146        - Built-in script functions may have a different return type depending on
147          the arguments passed to the function.
148        - Built-in script function "abs()" optionally accepts and returns real
149          number.
150        - Built-in script functions "min()" and "max()" optionally accept real
151          number arguments and return real number as result in that case.
152        - NKSP VM API: Allow units and 'final'ness to be returned as result from
153          built-in functions (added methods VMFunction::returnUnitType() and
154          VMFunction::returnsFinal() for that purpose which must be implemented by
155          built-in function implementations).
156        - NKSP language: Allow metric unit prefixes of numeric scalar and array
157          variables to be changed freely at runtime (unlike unit types like Hz etc.
158          which are still sticky, parse-time features of variables which cannot be
159          changed at runtime for the intentional sake of determinism).
160        - NKSP language: 'final' values are prohibited for array variables for now
161          (attempt causes a parsers error).
162        - NKSP language: expressions with unit types (e.g. Hz) are prohibited for
163          conditions of runtime control structures like if(), while(), select()
164          (attempt causes a parser error).
165        - NKSP VM API: Allow built-in functions to perform their own, individual
166          parse time checks of arguments going to be passed to the function at
167          runtime (added method VMFunction::checkArgs() for that purpose).
168        - NKSP language: raise parser warning if only one operand of binary
169          operators (like logical 'or' comparison) contain a 'final' value (because
170          it would always yield in a 'final' result in such cases).
171        - NKSP language: Allow comparison (=, #, <, >, <=, >=) of values with
172          different metric unit prefixes, which will behave as expected (e.g.
173          result of expression '1000us < 2ms' is true).
174        - NKSP language: Allow adding values with different metric unit prefixes
175          (e.g. result of expression '100Hz + 5kHz' is '5100Hz').
176        - NKSP language: Allow subtracting values with different metric unit
177          prefixes (e.g. result of expression '1ms - 20us' is '980us').
178        - NKSP language: Allow multiplying with any metric unit prefixes
179          (e.g. result of expression '2k * 3ms' is '6s'), however multiplications
180          with unit types on both sides (e.g. '2s * 2s') is still prohibited since
181          we don't have any considerable practical use for a term like '4s^2'
182          (hence any attempt multiplying two unit types still causes parser error).
183        - NKSP language: Allow dividing by any metric unit prefixes and allow
184          division of same unit type on both sides (e.g. expression '8kHz / 1000Hz'
185          yields in unit free result '8'). So this is now a way to cast units away
186          e.g. for passing the result to other expressions, certain function calls
187          or variables which are not accepting any units (or that specific unit).
188        - NKSP language: integer arrays and real number arrays can now be converted
189          to strings (e.g. for dumping their content with message() calls for
190          script debugging purposes).
191        - NKSP language: expressions and variables with units are now correctly
192          casted to strings (e.g. with message() calls).
193        - NKSP language: comparing real numbers for equalness (e.g. '~foo = 3.1') or
194          unequalness (e.g. '~foo # 3.1') is now less strict and takes the expected
195          floating point tolerances into account.
196        - NKSP VM API: Added methods VMScalarNumberExpr::evalCastInt() and
197          VMScalarNumberExpr::evalCastReal().
198        - NKSP VM API: Added base class 'VMNumberArrayExpr' for classes
199          'VMIntArrayExpr' and 'VMRealArrayExpr'.
200        - NKSP VM API: replaced all unitPrefix() (parse time) methods by
201          unitFactor() (runtime) methods.
202        - Built-in function "exit()" supports now returning units and 'final'ness
203          for test cases.
204        - The following built-in functions support now units as well: "abs()",
205          "random()", "inc()", "dec()", "in_range()", "min()", "max()",
206          "real_to_int()", "int()", "int_to_real()" and "real()".
207        - Built-in functions "array_equal()", "search()" and "sort()" support now
208          real number arrays (correctly) as well.
209        - Added individual parse time checks of arguments to be passed to built-in
210          functions "random()", "inc()", "dec()", "in_range()", "min()", "max()",
211          "array_equal()" and "search()" specific for their individual purposes.
212        - NKSP VM refactoring: Renamed all methods, functions and classes matching
213          pattern *ScalarNumber* to simply *Number* (that is i.e. classes
214          VMScalarNumberExpr -> VMNumberExpr, ScalarNumberExpr -> NumberExpr,
215          ScalarNumberVariable -> NumberVariable, ScalarNumberBinaryOp ->
216          NumberBinaryOp, VMScalarNumberResultFunction -> VMNumberResultFunction,
217          method VMExpr::asScalarNumberExpr() -> VMExpr::asNumber(), function
218          isScalarNumber() -> isNumber()).
219        - NKSP VM API: Added 4 overridden methods to class VMNumberExpr:
220          evalCastInt(MetricPrefix_t), evalCastInt(MetricPrefix_t,MetricPrefix_t),
221          evalCastReal(MetricPrefix_t), evalCastReal(MetricPrefix_t,MetricPrefix_t)
222          as convenient methods for automatically converting values to expected
223          metric value basis.
224        - Built-in function "wait()" accepts now both integers and real numbers as
225          argument.
226        - NKSP VM API cleanup: Get rid of legacy method
227          VMFunction::argType(vmint iArg) which was already superseded by its new
228          replacement VMFunction::acceptsArgType(vmint iArg, ExprType_t type).
229        - NKSP parser: if wrong argument type was passed to a built-in function and
230          that built-in function accepts more than one data type for the argument,
231          then show all supported data types as parser error message.
232        - Built-in function "play_note()" accepts now real numbers and seconds as
233          unit type as well for its 3rd and 4th function arguments.
234        - The following built-in functions accept now real numbers as well for their
235          2nd function argument: "change_vol()", "change_tune()", "change_cutoff()",
236          "change_attack()", "change_decay()", "change_release()",
237          "change_sustain()", "change_cutoff_attack()", "change_cutoff_decay()",
238          "change_cutoff_sustain()", "change_cutoff_release()",
239          "change_amp_lfo_freq()", "change_cutoff_lfo_freq()",
240          "change_pitch_lfo_freq()", "change_vol_time()", "change_tune_time()",
241          "change_pan_time()", "fade_in()", "fade_out()", "change_play_pos()".
242        - Fixed built-in function "change_play_pos()" not having accepted metric
243          prefixes at all.
244        - Fixed the following built-in functions having misinterpreted values given
245          with unit type (for their 2nd argument) as if they were relative values
246          (that is as if they were passed without a unit type): "change_attack()",
247          "change_decay()", "change_release()", "change_cutoff_attack()",
248          "change_cutoff_decay()", "change_cutoff_release()".
249        - Fixed the following built-in functions having applied completely wrong
250          'final' values: "change_sustain()", "change_cutoff_sustain()" (since the
251          respective EGs being their modulation sink assume uint data type with
252          value range 0..1000 instead of 0.0..1.0.
253        - Added individual parse-time checks of function arguments for the following
254          built-in functions: "play_note()", "note_off()", "set_event_mark()",
255          "delete_event_mark()", "by_marks()", "change_cutoff()", "change_attack()",
256          "change_decay()", "change_release()", "change_cutoff_attack()",
257          "change_cutoff_decay()", "change_cutoff_release()",
258          "change_amp_lfo_freq()", "change_cutoff_lfo_freq()",
259          "change_pitch_lfo_freq()", "change_vol_time()", "change_tune_time()" and
260          "change_pan_time()".
261        - Don't abort function call if unit type was used and at the same time
262          'final' operator was omitted for the primary value argument of the
263          following built-in functions: "change_cutoff()", "change_attack()",
264          "change_decay()", "change_release()", "change_cutoff_attack()",
265          "change_cutoff_decay()", "change_cutoff_release()",
266          "change_amp_lfo_freq()", "change_cutoff_lfo_freq()",
267          "change_pitch_lfo_freq()", "change_vol_time()", "change_tune_time()",
268          "change_pan_time()", instead imply 'final'ness at runtime and raise an
269          appropriate parser warning at parse time.
270        - Added built-in real number functions "round()", "ceil()", "floor()",
271          "sqrt()", "log()", "log2()", "log10()", "exp()", "pow()", "sin()",
272          "cos()", "tan()", "asin()", "acos()", "atan()".
273        - Added built-in script real number constant "~NI_MATH_PI".
274        - Added built-in script real number constant "~NI_MATH_E".
275        - NKSP language: Allow unary '+' operator.
276        - Added built-in script functions "msb()" and "lsb()".
277        - NKSP language: Added support for RPN event handler
278          ("on rpn ... end on" in instrument scripts).
279        - NKSP language: Added support for NRPN event handler
280          ("on nrpn ... end on" in instrument scripts).
281        - Added built-in read-only variables "$RPN_ADDRESS" and "$RPN_VALUE" which
282          may be read from the new RPN/NRPN script handlers to get the (N)RPN
283          parameter that had been changed and its new value.
284        - Added built-in const variables "$NI_CB_TYPE_RPN" and "$NI_CB_TYPE_NRPN"
285          which are identifying the new (N)RPN handlers as such at script runtime.
286        - Implemented built-in script function "set_rpn()".
287        - Implemented built-in script function "set_nrpn()".
288        - Fix: built-in functions returning an array type were broken and caused a
289          crash when the built-in function's (supposed to be array) result value was
290          used by the script VM.
291        - Removed upper value constraint for 2nd argument of built-in functions
292          "change_amp_lfo_freq()", "change_cutoff_lfo_freq()",
293          "change_pitch_lfo_freq()","change_reso()", "change_cutoff()",
294          "change_amp_lfo_depth()", "change_cutoff_lfo_depth()" and
295          "change_pitch_lfo_depth()", to allow e.g. passing value 2000000 to double
296          the LFO frequency / resonance / cutoff frequency.
297        - Reduced code involved for parsing NKSP variable declarations by using 2
298          generalized grammar rules with optional components (i.e. optional value
299          assignment and optional variable qualifiers) instead of previous linear
300          combinations of grammar rules, which also fixes some edge case.
301        - NKSP language parser: track code block locations also by a) raw byte
302          position in NKSP source code string and b) length of that code block in
303          bytes (along to the already existing code block tracking by line/column);
304          and added appropriate new members to public C++ API classes like
305          'firstByte' and 'lengthBytes' to class VMSourceToken and struct CodeBlock.
306        - NKSP language: Added support for 'patch' variable qualifier (capture their
307          locations and allow replacement of their assignment expression via VM C++
308          API).
309        - Fixed incorrect EG times if standard measuring unit was passed to built-in
310          functions "change_attack()", "change_decay()" or "change_release()".
311        - Fixed intermediate function result values never having reflected any
312          standard measuring unit type.
313        - Fixed re-entrant issue with function calls which caused wrong result
314          values if the same function was called multiple times in a term
315          (specifically if metric prefixes were used).
316        - NKSP language: Just throw a warning, not an error if an array variable of
317          size zero was declared.
318        - NKSP language: Allow omitting explicit array size on array variable
319          declaration if combined with immediate value assignment
320          (e.g. declare %foo[] := ( 1, 2, 3 ) ).
321        - NKSP language: emit warning if an array variable was declared with bigger
322          array size than amount of initial values been assigned, and initialize the
323          missing array elements with zero in this case.
324        - Fixed built-in NKSP exit() function to behave as return statement.
325        - NKSP parser: Fixed crash if unary '-' operator was used on a non-number
326          data type.
327        - NKSP VM: Fixed the "release" handler being executed too often under
328          certain situations if polyphonic data was passed from "note" handler to
329          "release" handler.
330        - Fixed memory leak in NKSP parser: string tokens were allocated as C
331          strings and never freed.
332        - Fixed incorrect polyphonic data transfer from wrong note handler to
333          release handler; which also fixes no release handler being executed
334          sometimes, and due to the latter it also fixes potential crashes as some
335          polyphonic script events were never released and the engine hence was
336          running out of free script events.
337        - Fixed crash when handling array results of built-in functions
338          (e.g. "num_elements(by_marks($MARK_1)").
339        - NKSP VM: Fixed dead note events not been removed from user's event groups
340          (i.e. causing incorrect behaviour of built-in NKSP functions by_marks()
341          and set_event_mark() after max. size of event group list was exhausted).
342    
343      * test cases:
344        - Fixed compiler errors in test cases.
345        - Updated README for how to compile & run test cases.
346        - Updated test case
347          MutexTest::testDoubleLockStillBlocksConcurrentThread() to latest
348          expected behaviour of the Mutex class implementation (recursive
349          mutex type).
350        - Added test cases for NKSP core language aspects and core built-in
351          functions.
352        - Fixed thread tests segfaulting on Linux.
353        - NKSP: Added real number test cases for built-in functions exit(),
354          int_to_real(), real(), real_to_int() and int(), as well as for the
355          plus, minus and negate language operators.
356        - Added massive amount of NKSP test cases for standard measuring units and
357          'final' operator usage cases.
358        - Added NKSP test cases for (floating point tolerance aware) real number
359          equalness / unequalness comparison.
360        - Added NKSP int array and real array tests for value assignment and
361          initialization of arrays.
362        - Added NKSP test cases for built-in functions "round()", "ceil()",
363          "floor()", "sqrt()", "log()", "log2()", "log10()", "exp()", "pow()",
364          "sin()", "cos()", "tan()", "asin()", "acos()", "atan()".
365        - Added NKSP test cases for unary '+' operator.
366        - Added NKSP test cases for core built-in variables.
367        - Added thorough NKSP test cases for variable declarations.
368    
369      * GigaStudio/Gigasampler format engine:
370        - LFOTriangleIntMath and LFOTriangleIntAbsMath: Fixed FlipPhase=true
371          behaviour for start_level_mid.
372        - Changed LFO start levels: LFO1 and LFO2 both to mid, LFO3 to max. start
373          level (see discussion "GigaStudio LFO compatibility" on mailing list
374          from 2019-09-26 for details).
375        - Changed default wave form for all 3 LFOs to sine (instead of triangle;
376          see discussion "GigaStudio LFO compatibility" on mailing list from
377          2019-09-26 for details).
378        - Format extension: Added support for different LFO wave forms (currently
379          either sine [default], triangle, saw or square).
380        - Format extension: Added support for LFO phase displacement (0°..360°).
381        - Format extension: Added support for flipping LFO polarity on LFO 3
382          (in the original gig format this was only available for LFO 1 and LFO 2).
383        - Format extension: Support for additional filter types:
384          lowpass 1/2/4/6-pole, highpass 1/2/4/6-pole, bandpass 2-pole,
385          bandreject 2-pole.
386        - Fixd potential crash with polynomial interpolator and max. pitch.
387        - If minimum cutoff is defined, remap cutoff controller CC values to really
388          span the entire possible cutoff range (and avoiding a dead controller
389          zone).
390        - Implemented support for loading instrument scripts with 'patch' variables
391          (by patching these script variables with potentially overridden ones by
392          gig Instrument).
393    
394      * SFZ format engine:
395        - Fixed support for regions with loccN/hiccN conditions on more than one
396          MIDI controller.
397        - Fixed internal opcode 'xfin_hivel' falsely being set by user opcode
398          'xfin_lovel' (patch by Christian Czezatke).
399    
400      * Benchmarks:
401        - Fixed benchmarks/triang.cpp falsely having favoured "int math abs"
402          algorithm (since result of 2nd run was not accumulated).
403        - Added benchmark for saw wave (benchmarks/saw.cpp).
404        - Added benchmark for sine wave (benchmarks/sine.cpp).
405        - Added benchmark for square wave (benchmarks/square.cpp).
406        - Increased amount of benchmarks runs by factor 6 to achieve benchmark times
407          which are large enough on modern systems.
408    
409    Version 2.1.1 (27 Jul 2019)
410    
411      * Real-time instrument scripts:
412        - Fixed behavior of built-in NKSP functions change_sustain(),
413          change_cutoff_attack(), change_cutoff_decay(), change_cutoff_sustain()
414          and change_cutoff_release().
415    
416      * general changes:
417        - Only play release trigger samples on sustain pedal up if this behaviour
418          was explicitly requested by the instrument (otherwise only on note-off).
419        - Fixed compiler warnings.
420        - Fixed compilation error when cross-compiling to Mac.
421        - FX Sends: Provide more useful error messages on routing problems
422          (see bug #169).
423        - LSCP doc: Be more clear describing the two distinct approaches
424          of using external vs. internal effects (see bug #169).
425        - "optional" class: Fixed comparison operators.
426    
427      * Gigasampler/GigaStudio format engine:
428        - Format extension: If requested by instrument then don't play release
429          trigger sample on note-off events.
430    
431      * SFZ format engine:
432        - Fixed memory leak when releasing samples
433          (fixes bug #307, patch by Jacek Roszkowski)
434        - Fixed potential crash when a sample is shared by more than one region
435          (fixes bug #308, patch by Jacek Roszkowski).
436        - Opcode 'sample': Added support for built-in sample '*silence'
437          (fixes bug #310, patch by Jacek Roszkowski).
438    
439    Version 2.1.0 (25 Nov 2017)
440    
441      * SFZ format engine:
442        - added support for <global>, <master> and #define (patch by Alby M)
443        - Removed code duplication in SFZ file loading code.
444        - Added support for sfz extension opcode 'script' which may be used to
445          load real-time instrument script file (NKSP script language).
446        - Implemented opcode set_ccN (initial patch by Giovanni Senatore).
447        - Fixed unintended volume fade-in of voices under certain conditions.
448        - sfz parser: allow missing space between header and opcode
449    
450      * Gigasampler/GigaStudio format engine:
451        - Fixed clicks and pumping noise with Lowpass Turbo filter on very low
452          cutoff settings.
453        - Got rid of resembling an ancient GSt misbehavior which did not pitch at
454          all if an up-pitch of more than 40 semi tones was requested (I don't
455          think there is any stock gig sound that requires this behavior to
456          resemble its original sound).
457        - Added support for controlling whether the individual EGADSR stages may
458          be aborted (as LinuxSampler extension to the original GigaStudio 4
459          format).
460    
461      * general changes:
462        - fixed printf type errors (mostly in debug messages)
463        - use unique_ptr instead of auto_ptr when building with C++11
464        - Added RTAVLTree class which is a real-time safe ordered multi-map, thus
465          allowing to sort data efficiently in real-time safe manner.
466        - RTList class: added methods for moving/inserting elements to arbitrary
467          position within a list.
468        - RTList class: added method fromPtr() for creating an Iterator object from
469          a raw element pointer.
470        - Attempt to partly fix resetting engine channels vs. resetting engine, an
471          overall cleanup of the Reset*(), ConnectAudioDevice(),
472          DisconnectAudioDevice() API methods would still be desirable though,
473          because the current situation is still inconsistent and error prone.
474        - Active voices are now internally grouped to "Note" objects, instead of
475          being directly assigned to a keyboard key. This allows more fine graded
476          processing of voices, which is i.e. required for certain instrument
477          script features.
478        - Fix: Release trigger voices were not spawned on sustain pedal up
479          (CC #64) events.
480        - Fix: Release trigger voices can now also distinguish correctly between
481          note-off and sustain pedal up events.
482        - All engines: Increased ramp speed of volume smoother and pan smoother
483          (while slow rate of crossfade smoother is preserved) to allow quick
484          volume and pan changes by instrument scripts for instance.
485        - gig/sf2/sfz: Fixed aftertouch channel pressure events being processed
486          properly and thus were ignored for certain uses.
487        - Added new C++ API method
488          VirtualMidiDevice::SendChannelPressureToSampler().
489        - windows, 32-bit: fixed potential crashes by making sure the stack in
490          sub threads is 16-byte aligned
491        - fixed numerous compiler warnings
492        - Fixed invalid (note-on) event ID being assigned to new Note objects.
493        - Revised fundamental C++ classes "Thread", "Mutex" and "Condition" which
494          fixes potential undefined behavior.
495        - Fixed Note object leak when triggering notes on keys which did not
496          have a valid sample mapped (fixes bug #252).
497        - Fixed compilation errors when compiling with CONFIG_DEVMODE enabled.
498        - linuxsampler binary fix: option --create-instruments-db ignored
499          subsequent optional argument due to glibc's implementation oddity
500          which expects a "=" sign, but no space between them.
501    
502      * packaging changes:
503        - removed unnecessary dependency to libuuid
504          (originated by libgig's usage of it)
505        - Automake: set environment variable GCC_COLORS=auto to allow GCC to
506          auto detect whether it (sh/c)ould output its messages in color.
507        - Debian: Fixed packaging error about invalid "Source-Version"
508          substitution variable.
509        - Debian: Raised Debian compatibility level to Debian 9 "Stretch".
510        - Debian: Added build dependency to libsqlite3-dev for building
511          linuxsampler with instruments DB support.
512    
513      * Real-time instrument scripts:
514        - Implemented scheduler for delayed MIDI events and for suspended scripts.
515        - Built-in script function "wait()": implemented support for function's
516          "duration-us" argument, thus scripts using this function are now
517          correctly resumed after the requested amount of microseconds.
518        - Built-in script function "play_note()": implemented support for
519          function's "duration-us" argument, thus notes triggered with this
520          argument are now correctly released after the requested amount of
521          microseconds.
522        - Fix: script events were not cleared when engine channel was reset,
523          potentially causing undefined behavior.
524        - Fixed crash which happened when trying to reference an undeclared
525          variable.
526        - Built-in script function "play_note()": Added support for passing
527          special value -1 for "duration-us" argument, which will cause the
528          triggered note to be released once the original note was released.
529        - Instrument script classes now exported with the liblinuxsampler C++ API.
530        - Added new API method ScriptVM::syntaxHighlighting() which provides
531          a convenient syntax highlighting backend for external instrument
532          script editor applications.
533        - Added new C++ API class "ScriptVMFactory".
534        - Extended parser issues to provide not only first line and first
535          column, but also last line and last column of issue (thus marking
536          the precise span of the issue within the source code).
537        - Reload script automatically after being modified by an instrument
538          editor.
539        - NKSP language grammar correction: allow empty event handler bodies
540          like "on note end on".
541        - Implemented built-in script function "change_vol()".
542        - Implemented built-in script function "change_tune()".
543        - Implemented built-in script function "change_pan()".
544        - Implemented built-in script function "change_cutoff()".
545        - Implemented built-in script function "change_reso()".
546        - Implemented built-in script function "event_status()".
547        - Added built-in script constants "$EVENT_STATUS_INACTIVE" and
548          "$EVENT_STATUS_NOTE_QUEUE" both for being used as flags for
549          "event_status()" function.
550        - NKSP language: Added support for bitwise operators ".or.", ".and."
551          and ".not.".
552        - NKSP language scanner: Fixed IDs matching to require at least one
553          character (i.e. when matching function names or variable names).
554        - NKSP language scanner: disabled unusued rules.
555        - Fixed behavior of play_note() and note_off() functions which must
556          be distinguished engine internally from "real" MIDI note on/off
557          events in order to avoid misbehaviors like hanging notes.
558        - Implemented built-in script variable "$KSP_TIMER".
559        - Implemented built-in script variable "$NKSP_REAL_TIMER".
560        - Implemented built-in script variable "$NKSP_PERF_TIMER".
561        - Implemented built-in script variable "$ENGINE_UPTIME".
562        - Implemented built-in script function "inc()".
563        - Implemented built-in script function "dec()".
564        - NKSP language fix: division expressions were evaluated too often.
565        - NKSP language fix: string concatenation operator was right
566          associative instead of left (to right).
567        - NKSP language correction: allow empty statements in entire language
568          (i.e. "if end if").
569        - Implemented built-in script function "stop_wait()".
570        - Implemented built-in script variable "$NI_CALLBACK_ID".
571        - Implemented built-in script variable "$NI_CALLBACK_TYPE".
572        - Implemented built-in script variable "$NKSP_IGNORE_WAIT".
573        - Added support for read-only built-in variables (respectively
574          handled by the script parser).
575        - Added built-in script constant "$NI_CB_TYPE_INIT".
576        - Added built-in script constant "$NI_CB_TYPE_NOTE".
577        - Added built-in script constant "$NI_CB_TYPE_RELEASE".
578        - Added built-in script constant "$NI_CB_TYPE_CONTROLLER".
579        - NKSP Language: Added support for user defined script functions.
580        - Implemented built-in script function "change_attack()".
581        - Implemented built-in script function "change_decay()".
582        - Implemented built-in script function "change_release()".
583        - Fixed all change_*() built-in script functions to apply their
584          synthesis parameter changes immediately in case the respective note
585          was triggered at the same time, instead of scheduling the parameter
586          change, especially because it would cause some parameter types's
587          changes either to be ramped (i.e. change_vol()) or other types even
588          to have not effect at all (i.e. change_attack()).
589        - Implemented built-in script function "sh_left()".
590        - Implemented built-in script function "sh_right()".
591        - Implemented built-in script function "min()".
592        - Implemented built-in script function "max()".
593        - NKSP Fix: "init" event handler was not always executed when a script
594          was loaded.
595        - NKSP built-in wait() script function: abort script execution if
596          a negative or zero wait time was passed as argument (since this is
597          a common indication of a bug either of the script or even of the
598          engine, which could lead to RT instability or even worse).
599        - ScriptVM: Implemented automatic suspension of RT safety
600          threatening scripts.
601        - Provide more user friendly error messages on syntax errors.
602        - Fixed NKSP parser warning "Not a statement" when assigning an
603          initializer list to an array variable.
604        - Implemented built-in script array variable "%ALL_EVENTS".
605        - Implemented built-in script function "in_range()".
606        - Implemented built-in script function "change_amp_lfo_depth()".
607        - Implemented built-in script function "change_amp_lfo_freq()".
608        - Implemented built-in script function "change_pitch_lfo_depth()".
609        - Implemented built-in script function "change_pitch_lfo_freq()".
610        - Implemented built-in script function "change_vol_time()".
611        - Implemented built-in script function "change_tune_time()".
612        - Implemented built-in script function "fade_in()".
613        - Implemented built-in script function "fade_out()".
614        - Fixed acceptance of wrong data type of parameters passed to built-in
615          script functions "change_vol()", "change_tune()", "change_pan()",
616          "change_cutoff()", "change_reso()", "change_attack()", "change_decay()",
617          "change_release()", "change_amp_lfo_depth()", "change_amp_lfo_freq()",
618          "change_pitch_lfo_depth()" and "change_pitch_lfo_freq()".
619        - Added built-in script function "get_event_par()" and implemented some
620          of its possible parameter selections.
621        - Added built-in script function "set_event_par()" and implemented some
622          of its possible parameter selections.
623        - Fixed a bunch of scheduler time related bugs.
624        - Fixed polyphonic variables not being reset to zero after usage.
625        - Built-in "ignore_event()" function: argument is now optional, like with
626          built-in function "ignore_controller()".
627        - Implemented built-in script function "change_velo()".
628        - Implemented built-in script function "change_note()".
629        - Adjusted behavior of "change_vol()" and "change_tune()" to a more
630          intuitive behavior if used in combination with "change_vol_time()" or
631          "change_tune_time()" respectively: now tuning/volume changes are only
632          assigned (without delay) immediately to a new note if the respective
633          timing function has not been called before, otherwise the volume/tuning
634          changes are automatically faded (before, only the event's time stamp was
635          relevant).
636         - Implemented built-in script function "array_equal()".
637         - Implemented built-in script function "search()".
638         - Implemented built-in script function "sort()".
639         - NKSP Fix: Never suspend "init" event handlers.
640         - Implemented built-in script function "same_region()" (currently only
641           available for gig format engine).
642         - Added built-in script constant "$NKSP_LINEAR".
643         - Added built-in script constant "$NKSP_EASE_IN_EASE_OUT".
644         - Implemented built-in script function "change_vol_curve()".
645         - Implemented built-in script function "change_tune_curve()".
646         - built-in "play_note()" function now supports a sample playback start
647           offset with argument 3, where special value -1 means to use the regular
648           sample offset as defined by the instrument file.
649         - Built-in array variable %KEY_DOWN[] is now a read-only variable.
650         - Built-in variable $EVENT_NOTE is now a read-only variable.
651         - Built-in variable $EVENT_VELOCITY is now a read-only variable.
652         - built-in "play_note()" function now accepts -2 for its fourth argument
653           (note duration) which means the life time of the note shall be sticked
654           to the requested note number of argument 1.
655         - Fix: built-in "play_note()" function now returns 0 as result value if
656           -1 was passed for its fourth argument (note duration) and the respective
657           parent note is already gone.
658        - Implemented built-in script function "change_play_pos()".
659        - NKSP language: Added support for user declared const array variables.
660        - NKSP language: Raise parser warning if array variable is accessed with
661          an index that exceeds the array's size.
662        - NKSP language fix: Unknown characters were not handled correctly.
663        - NKSP language: Added support for "synchronized .. end synchronized"
664          code blocks.
665        - Implemented built-in script function "abort()" which allows to abort
666          another script handler by passing its callback ID.
667        - Fixed potential memory access bug and potential undefined behavior of
668          "init" event handlers.
669        - Print a time stamp along to each call of built-in function "message()".
670        - ScriptVM API: Added VMParserContext::preprocessorComments() which allows
671          to retrieve all code blocks filtered out by the preprocessor.
672        - Added built-in script function "fork()".
673        - Added built-in array variable %NKSP_CALLBACK_CHILD_ID[].
674        - Added built-in variable $NKSP_CALLBACK_PARENT_ID.
675        - Fixed potential crash when accessing dynamic built-in array variables.
676        - Added built-in script function "callback_status()".
677        - Added built-in constant $CALLBACK_STATUS_TERMINATED.
678        - Added built-in constant $CALLBACK_STATUS_QUEUE.
679        - Added built-in constant $CALLBACK_STATUS_RUNNING.
680        - Removed max. value limitation of built-in functions "change_attack()",
681          "change_decay()" and "change_release()" to i.e. allow passing 2000000
682          for doubling the respective time.
683        - NKSP script editor syntax highlighting API: Fixed app termination due
684          to a lexer start condition stack underrun.
685        - NKSP preprocessor: Fixed wrong behavior on nested USE_CODE_IF() and
686          USE_CODE_IF_NOT() preprocessor statements.
687        - NKSP: Added built-in preprocessor condition NKSP_NO_MESSAGE, which
688          can be set to disable all subsequent built-in "message()" function calls
689          on preprocessor level.
690        - Implemented built-in script function "change_sustain()".
691        - NKSP script editor syntax highlighting API: catch all fatal lexer errors,
692          to avoid the editor app to crash on ill-formed text input.
693        - Added built-in script function "change_pan_time()".
694        - Added built-in script function "change_pan_curve()".
695        - Added built-in script function "change_cutoff_attack()".
696        - Added built-in script function "change_cutoff_decay()".
697        - Added built-in script function "change_cutoff_sustain()".
698        - Added built-in script function "change_cutoff_release()".
699        - Added built-in script function "change_cutoff_lfo_depth()".
700        - Added built-in script function "change_cutoff_lfo_freq()".
701    
702      * Instruments DB:
703        - Fixed memory access bug of general DB access code which lead to
704          undefined behavior.
705        - Cleanup of instruments DB file creation and opening code.
706        - The instrument DB path of linuxsampler's --create-instruments-db argument
707          is now optional, if it is missing, then a default location is used.
708        - Added support for scanning SFZ (.sfz) files.
709        - Added support for scanning Sound Font (.sf2) files.
710        - Fixed undefined DB transaction behavior.
711    
712    Version 2.0.0 (15 July 2015)
713    
714    * packaging changes:    * packaging changes:
715      - fixed building with newer MinGW-w64      - fixed building with newer MinGW-w64
# Line 103  Version CVS HEAD (?) Line 814  Version CVS HEAD (?)
814        polyphonic key pressure events (so far polyphonic pressure was not        polyphonic key pressure events (so far polyphonic pressure was not
815        supported at all, and channel pressure was rerouted as CC128 but not        supported at all, and channel pressure was rerouted as CC128 but not
816        used so far).        used so far).
817        - Added initial support for real-time instrument scripts. The script VM
818          code is shared by all sampler engine implemementations, however only the
819          gig file format currently provides support for storing instrument scripts
820          (as LinuxSampler extension to the original GigaStudio 4 format).
821    
822    * Gigasampler format engine:    * Gigasampler format engine:
823      - implemented the "round robin keyboard" dimension      - implemented the "round robin keyboard" dimension
# Line 122  Version CVS HEAD (?) Line 837  Version CVS HEAD (?)
837      - Fixed support for 'aftertouch' attenuation controller.      - Fixed support for 'aftertouch' attenuation controller.
838      - Fixed crash that happened with velocity split sounds under certain      - Fixed crash that happened with velocity split sounds under certain
839        conditions (see also previous commit on libgig).        conditions (see also previous commit on libgig).
840        - fixed behaviour of filter LFO
841    
842    * SFZ format engine:    * SFZ format engine:
843      - Initial implementation (not usable yet)      - Initial implementation (not usable yet)
# Line 286  Version CVS HEAD (?) Line 1002  Version CVS HEAD (?)
1002      - bugfix: generation of velocity curves etc should not be done      - bugfix: generation of velocity curves etc should not be done
1003        after each "#include", only after the main file is parsed        after each "#include", only after the main file is parsed
1004      - bugfix: line numbers in error messages were wrong after "#include"      - bugfix: line numbers in error messages were wrong after "#include"
1005        - added support for float and 32 bit sample files
1006    
1007    * SoundFont format engine:    * SoundFont format engine:
1008      - Initial implementation (not usable yet)      - Initial implementation (not usable yet)
# Line 333  Version CVS HEAD (?) Line 1050  Version CVS HEAD (?)
1050      - VST: implemented retrieval and switching of programs using the      - VST: implemented retrieval and switching of programs using the
1051        sampler's internal MIDI instrument mapping system        sampler's internal MIDI instrument mapping system
1052    
1053      * Instrument editor interface:
1054        - Changed instrument editor plugin interface, providing additional
1055          informations like the EngineChannel for which the instrument editor was
1056          spawned for. This allows the instrument editors to interact more actively
1057          with the sampler.
1058    
1059    * MIDI driver:    * MIDI driver:
1060      - ALSA MIDI driver supports now "NAME" device parameter, for overriding      - ALSA MIDI driver supports now "NAME" device parameter, for overriding
1061        the ALSA sequencer client name        the ALSA sequencer client name
# Line 356  Version CVS HEAD (?) Line 1079  Version CVS HEAD (?)
1079      - MME bugfix: driver wasn't closed properly      - MME bugfix: driver wasn't closed properly
1080      - CoreMIDI: automatically connect to all input sources by default (driver      - CoreMIDI: automatically connect to all input sources by default (driver
1081        parameter "AUTO_BIND").        parameter "AUTO_BIND").
1082        - CoreMIDI: fixed auto bind feature to CoreMIDI ports that go online
1083        - CoreMIDI: fixed minor memory leak
1084    
1085    * audio driver:    * audio driver:
1086      - ASIO driver fixes for newer gcc versions (fix from PortAudio)      - ASIO driver fixes for newer gcc versions (fix from PortAudio)
# Line 407  Version CVS HEAD (?) Line 1132  Version CVS HEAD (?)
1132        "SUBSCRIBE SEND_EFFECT_CHAIN_INFO"        "SUBSCRIBE SEND_EFFECT_CHAIN_INFO"
1133      - provide comprehensive error messages on LSCP syntax errors      - provide comprehensive error messages on LSCP syntax errors
1134        (suggesting expected next non-terminal symbols)        (suggesting expected next non-terminal symbols)
1135        - Fixed client connection not being closed after network errors.
1136    
1137    * LSCP shell:    * LSCP shell:
1138      - Added support for auto correction of obvious and trivial syntax mistakes.      - Added support for auto correction of obvious and trivial syntax mistakes.
# Line 422  Version CVS HEAD (?) Line 1148  Version CVS HEAD (?)
1148        as one specific LSCP command was detected while typing on the command        as one specific LSCP command was detected while typing on the command
1149        line.        line.
1150    
1151      * Real-time instrument scripts:
1152        - Implemented built-in script array variable %CC.
1153        - Implemented built-in script int variable $CC_NUM.
1154        - Implemented built-in script int variable $EVENT_NOTE.
1155        - Implemented built-in script int variable $EVENT_VELOCITY.
1156        - Implemented built-in script constant variable $VCC_MONO_AT.
1157        - Implemented built-in script constant variable $VCC_PITCH_BEND.
1158        - Implemented execution of script event handler "init".
1159        - Implemented execution of script event handler "controller".
1160        - Implemented execution of script event handler "note".
1161        - Implemented execution of script event handler "release".
1162        - Implemented built-in script function "play_note()" (only two of the
1163          max. four function arguments are currently implemented yet though).
1164        - Implemented built-in script int variable $EVENT_ID.
1165        - Implemented built-in script function "ignore_event()"
1166        - Implemented built-in script function "ignore_controller()" (may have one
1167          or no argument).
1168        - Implemented built-in script function "set_controller()".
1169        - Added extended script VM for the Gigasampler/GigaStudio format sampler
1170          engine, which extends the general instrument script VM with Giga format
1171          specific variables and functions.
1172        - Giga format scripts: added built-in script int constant variables
1173          $GIG_DIM_CHANNEL, $GIG_DIM_LAYER, $GIG_DIM_VELOCITY, $GIG_DIM_AFTERTOUCH,
1174          $GIG_DIM_RELEASE, $GIG_DIM_KEYBOARD, $GIG_DIM_ROUNDROBIN, $GIG_DIM_RANDOM,
1175          $GIG_DIM_SMARTMIDI, $GIG_DIM_ROUNDROBINKEY, $GIG_DIM_MODWHEEL,
1176          $GIG_DIM_BREATH, $GIG_DIM_FOOT, $GIG_DIM_PORTAMENTOTIME, $GIG_DIM_EFFECT1,
1177          $GIG_DIM_EFFECT2, $GIG_DIM_GENPURPOSE1, $GIG_DIM_GENPURPOSE2,
1178          $GIG_DIM_GENPURPOSE3, $GIG_DIM_GENPURPOSE4, $GIG_DIM_SUSTAIN,
1179          $GIG_DIM_PORTAMENTO, $GIG_DIM_SOSTENUTO, $GIG_DIM_SOFT,
1180          $GIG_DIM_GENPURPOSE5, $GIG_DIM_GENPURPOSE6, $GIG_DIM_GENPURPOSE7,
1181          $GIG_DIM_GENPURPOSE8, $GIG_DIM_EFFECT1DEPTH, $GIG_DIM_EFFECT2DEPTH,
1182          $GIG_DIM_EFFECT3DEPTH, $GIG_DIM_EFFECT4DEPTH, $GIG_DIM_EFFECT5DEPTH.
1183        - Giga format scripts: Implemented built-in script function
1184          "gig_set_dim_zone(event_id, dimension, zone)".
1185        - Implemented built-in script int array variable %KEY_DOWN.
1186        - Implemented built-in script function "abs()".
1187        - Implemented built-in script function "random()".
1188        - Implemented built-in script function "num_elements()".
1189        - Implemented built-in script function "note_off()".
1190        - Implemented built-in script function "set_event_mark()".
1191        - Implemented built-in script function "delete_event_mark()".
1192        - Implemented built-in script function "by_marks()".
1193        - Added built-in script int const variables $MARK_1 to $MARK_28.
1194        - Built-in script functions "ignore_event()", "note_off()" and
1195          "gig_set_dim_zone()" now also accept an array of event IDs as argument
1196          (i.e. return value of new script function "by_marks()").
1197        - Pass/preserve polyphonic variable data from respective "note" event
1198          handler to "release" event handler.
1199        - Fixed crash when using built-in script function "by_marks()".
1200    
1201    * Bug fixes:    * Bug fixes:
1202      - Fixed crash which may occur when MIDI key + transpose is out of range      - Fixed crash which may occur when MIDI key + transpose is out of range
1203      - minor valgrind fixes      - minor valgrind fixes
# Line 472  Version CVS HEAD (?) Line 1248  Version CVS HEAD (?)
1248        "GET SERVER INFOasdf\n" to be accepted as valid statement (was so far        "GET SERVER INFOasdf\n" to be accepted as valid statement (was so far
1249        practically irrelevant, however it caused problems with the new LSCP        practically irrelevant, however it caused problems with the new LSCP
1250        shell's auto completion feature).        shell's auto completion feature).
1251        - Fixed MIDI program change messages being ignored if quickly executed
1252          after each other (fixes #231).
1253    
1254  Version 1.0.0 (31 July 2009)  Version 1.0.0 (31 July 2009)
1255    

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