/[svn]/linuxsampler/trunk/ChangeLog
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revision 3251 by schoenebeck, Mon May 29 22:19:19 2017 UTC revision 4020 by schoenebeck, Tue Jan 4 16:04:26 2022 UTC
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1  Version SVN trunk (?)  Version SVN trunk (?)
2    
3      * general changes:
4        - AbstractEngineChannel: fixed CCs not being forwarded to all
5          VirtualMIDIDevices.
6        - Fix compiler error with release tarball if no Bison installed
7          (SVN version still requires Flex and Bison being installed).
8    
9      * Real-time instrument scripts:
10        - Fix: Do not share compiled instrument scripts among multiple engine
11          channels (sampler parts) as this can lead to crashes and would allow the
12          same global script variables to be accessible from multiple engine
13          channels which would not be the expected behaviour by instrument script
14          authors.
15    
16      * GigaStudio/Gigasampler format engine:
17        - Use libgig's new IO-per-thread feature to avoid file I/O concurrency
18          issues with .gig file.
19        - Use libgig's new method gig::File::GetSample() with method
20          gig::File::CountSamples() instead of now deprecated
21          gig::File::GetFirstSample() / gig::File::GetNextSample() pair.
22        - Use libgig's new method gig::Instrument::GetRegionAt() with method
23          gig::Instrument:CountRegions() instead of now deprecated
24          gig::Instrument::GetFirstRegion() / gig::Instrument::GetNextRegion() pair.
25        - Use libgig's gig::File::GetInstrument() method with method
26          gig::File::CountInstruments() instead of now deprecated
27          gig::File::GetFirstInstrument() / gig::File::GetNextInstrument() pair.
28        - Show a more detailed error message on terminal if an appropriate editor
29          could not be found for a .gig instrument (if there is not any editor then
30          say so, if there is one but not capable to handle the instrument, then
31          make this case clear to the user; in both cases print the expected
32          location for instrument editor plugins).
33        - Fixed wrong velocity for release triggered samples: if and only if
34          note-off velocity is exactly zero (which means MIDI keyboard does not have
35          release velocity sensors) then use previous note-on velocity as note-off
36          velocity for release triggered samples instead.
37    
38      * SFZ format engine:
39        - Fixed wrong velocity for release triggered samples: if and only if
40          note-off velocity is exactly zero (which means MIDI keyboard does not have
41          release velocity sensors) then use previous note-on velocity as note-off
42          velocity for release triggered samples instead.
43        - sfz.h: Added File::filename() method.
44        - sfz.h: Added File::checkFileModified() method allowing to detect file
45          changes (e.g. by other apps).
46        - sfz.h: Added Instrument::GetFile() method.
47        - Automatically reload .sfz files on file changes (e.g. by some external
48          text editor).
49    
50      * MIDI driver:
51        - VirtualMidiDevice: added method Reset() which is e.g. intended to be used
52          in "panic" / MIDI "all sound off" / MIDI "all note off" situations.
53        - VirtualMidiDevice: release all notes on MIDI CC #120 and CC #123.
54    
55    Version 2.2.0 (9 May 2021)
56    
57      * general changes:
58        - Fixed compiler error in Pool.h.
59        - Require C++14 compiler support.
60        - Autoconf: Added m4/ax_cxx_compile_stdcxx.m4 macro which is used
61          for checking in configure for C++14 support (as mandatory
62          requirement) and automatically adds compiler argument if required
63          (e.g. -std=C++14).
64        - RTMath: Implemented floating point comparison methods
65          fEqual32(float,float) and fEqual64(double,double) which take the
66          expected floating point tolerances into account.
67        - Added public API C++ class "LFO", which is a cluster class encapsulating
68          all the sampler's LFO implementations to be used by 3rd party applications
69          (e.g. by Gigedit).
70        - Added int math square LFO implementation.
71        - Added int math saw LFO implementation.
72        - Added numeric complex nr sine LFO implementation.
73        - Marked class LFOTriangleDiHarmonic as deprecated
74          (will be removed in future).
75        - Added LFOAll.h which includes all LFO implementation's header files.
76        - Refactored LFO class names and their file names (PulseLFO -> LFOPulse,
77          LFOSawIntMath -> LFOSawIntMathNew, SawLFO -> LFOSawIntMathOld,
78          SineLFO -> LFOSineBuiltinFn, LFOSine -> LFOSineNumericComplexNr,
79          SquareLFO -> LFOSquarePulse and separated the latter to its own header
80          file).
81        - Renamed type LFOSigned -> LFOTriangleSigned.
82        - Renamed type LFOUnsigned -> LFOTriangleUnsigned.
83        - Using now cubic interpolation as resampling algorithm by default; and
84          linear interpolation is deprecated now.
85        - Event:Init(): memset() entire Event::Param union to zero instead of trying
86          to do that for its individual members; the latter became error prone due
87          to the union's growing complexity meanwhile.
88        - EngineChannel: Overhaul of RPN/NRPN related methods: Added new
89          *Rpn*Parameter*() methods as replacement for previous *Rpn*Controller*()
90          methods and marked the old ones as deprecated; and likewise added new
91          *Nrpn*Parameter*() methods as replacement for previous *Nrpn*Controller*()
92          methods and marked those old ones deprecated as well.
93        - Added support for MIDI CC #38 (data entry LSB): this allows higher value
94          resolution for certain (e.g. hard coded) RPN and NRPN parameters.
95        - Implemented support for compressed RPN/NRPN message sequences (that is to
96          allow processing MIDI data entry messages without always having to be
97          preceded strictly by RPN/NRPN parameter selection messages on each value
98          change).
99        - Added support for MIDI CC #96 (data increment) and MIDI CC #97 (data
100          decrement).
101        - Added support for 'null function RPN/NRPN' (which is RPN/NRPN parameter
102          MSB=127 and LSB=127) and which is disabling subsequent data
103          entry/increment/decrement CC messages.
104        - Fixed crash when editing key groups (a.k.a. exclusive groups) with an
105          instrument editor.
106        - Fixed playing noise at the end of a disk stream under certain conditions.
107        - Fixed potential crash with high pitch at end of RAM playback.
108        - Added configure checks whether C++ compiler supports so called
109          'designated initializers'.
110        - Added global backtraceAsString() function for debugging purposes
111          (POSIX systems only, no Windows implementation yet).
112        - Thread class: Added new methods pushCancelable(), popCancelable(), name(),
113          nameOfCaller() and setNameOfCaller().
114        - configure: Always check for availability of pthread_testcancel() and use
115          it if so (previously it was only used if explicitly enabled by configure
116          option).
117        - Thread class: raise compiler warning if pthread_testcancel() is not
118          available, because it can lead to deadlocks.
119        - Mutex class: Implemented optional bug detection and deadlock debugging
120          features.
121        - Ref<> class is now thread safe (as lock-free and wait-free
122          implementation).
123        - Fixed compilation error with Bison >= 3.6.0.
124        - Fixed rare crash when switching between instruments that had instrument
125          scripts loaded.
126        - Allow EffectChain::InsertEffect() as alternative to
127          EffectChain::AppendEffect() (i.e. with index equal to current chain size).
128        - ConstCapacityArray class: Fixed bug in remove() method.
129        - Fixed crash on certain MIDI RPN and NRPN messages that occurred if no
130          real-time instrument script was loaded.
131    
132      * Real-time instrument scripts:
133        - Added method ScriptVM::setExitResultEnabled() which allows to
134          explicitly enable the built-in exit() function to optionally accept
135          one function argument; the value of the passed exit() function
136          argument will then become available by calling
137          VMExecContext::exitResult() after script execution.
138        - 64 bit support for NKSP integer scripts variables (declare $foo).
139        - Variable names, function names and preprocessor condition names must start
140          with a regular character (a-z or A-Z); starting them with a digit or
141          underscore is not allowed.
142        - NKSP parser fix: equal comparison operator "=" and not equal comparison
143          operator "#" must only accept integer operands.
144        - NKSP language: Implemented support for standard units like Hertz, seconds,
145          Bel including support for metric unit prefixes; so one can now e.g.
146          conveniently use numbers in scripts like "5us" meaning "5 microseconds",
147          or e.g. "12kHz" meaning "12 kilo Hertz", or e.g. "-14mdB" meaning
148          "minus 14 Millidecibel", or e.g. "28c" meaning "28 cents" (for tuning).
149        - NKSP language: Introduced "final" operator "!" which is specifically
150          intended for synthesis parameter values to denote that the synthesis
151          parameter value is intended to be the "final" value for that synthesis
152          parameter that should explicitly be used by the engine and thus causing
153          the sampler engine to ignore all other modulation sources for the same
154          synthesis parameter (like e.g. LFO, EG); by simply prefixing a value,
155          variable or formula with this new "!" operator the expression is marked as
156          being "final".
157        - NKSP script editor API: Added support for detecting standard unit tokens
158          and their potential metric prefix token.
159        - NKSP language: Added support for NKSP real number literals and
160          arithmetic operations on them (e.g. "(3.9 + 2.9) / 12.3 - 42.0").
161        - NKSP language: Added support for NKSP real number (floating point) script
162          variables (declare ~foo).
163        - NKSP language: Added support for NKSP real number (floating point) array
164          script variables (declare ?foo[]).
165        - Built-in script function "message()" accepts now real number argument as
166          well.
167        - Added built-in script function "real_to_int()" and its short hand form
168          "int()" for casting from real number to integer in NKSP scripts.
169        - Added built-in script function "int_to_real()" and its short hand form
170          "real()" for casting from integer to real number in NKSP scripts.
171        - Allow built-in exit() function to potentially accept real number type
172          argument as well.
173        - Built-in script functions may have a different return type depending on
174          the arguments passed to the function.
175        - Built-in script function "abs()" optionally accepts and returns real
176          number.
177        - Built-in script functions "min()" and "max()" optionally accept real
178          number arguments and return real number as result in that case.
179        - NKSP VM API: Allow units and 'final'ness to be returned as result from
180          built-in functions (added methods VMFunction::returnUnitType() and
181          VMFunction::returnsFinal() for that purpose which must be implemented by
182          built-in function implementations).
183        - NKSP language: Allow metric unit prefixes of numeric scalar and array
184          variables to be changed freely at runtime (unlike unit types like Hz etc.
185          which are still sticky, parse-time features of variables which cannot be
186          changed at runtime for the intentional sake of determinism).
187        - NKSP language: 'final' values are prohibited for array variables for now
188          (attempt causes a parsers error).
189        - NKSP language: expressions with unit types (e.g. Hz) are prohibited for
190          conditions of runtime control structures like if(), while(), select()
191          (attempt causes a parser error).
192        - NKSP VM API: Allow built-in functions to perform their own, individual
193          parse time checks of arguments going to be passed to the function at
194          runtime (added method VMFunction::checkArgs() for that purpose).
195        - NKSP language: raise parser warning if only one operand of binary
196          operators (like logical 'or' comparison) contain a 'final' value (because
197          it would always yield in a 'final' result in such cases).
198        - NKSP language: Allow comparison (=, #, <, >, <=, >=) of values with
199          different metric unit prefixes, which will behave as expected (e.g.
200          result of expression '1000us < 2ms' is true).
201        - NKSP language: Allow adding values with different metric unit prefixes
202          (e.g. result of expression '100Hz + 5kHz' is '5100Hz').
203        - NKSP language: Allow subtracting values with different metric unit
204          prefixes (e.g. result of expression '1ms - 20us' is '980us').
205        - NKSP language: Allow multiplying with any metric unit prefixes
206          (e.g. result of expression '2k * 3ms' is '6s'), however multiplications
207          with unit types on both sides (e.g. '2s * 2s') is still prohibited since
208          we don't have any considerable practical use for a term like '4s^2'
209          (hence any attempt multiplying two unit types still causes parser error).
210        - NKSP language: Allow dividing by any metric unit prefixes and allow
211          division of same unit type on both sides (e.g. expression '8kHz / 1000Hz'
212          yields in unit free result '8'). So this is now a way to cast units away
213          e.g. for passing the result to other expressions, certain function calls
214          or variables which are not accepting any units (or that specific unit).
215        - NKSP language: integer arrays and real number arrays can now be converted
216          to strings (e.g. for dumping their content with message() calls for
217          script debugging purposes).
218        - NKSP language: expressions and variables with units are now correctly
219          casted to strings (e.g. with message() calls).
220        - NKSP language: comparing real numbers for equalness (e.g. '~foo = 3.1') or
221          unequalness (e.g. '~foo # 3.1') is now less strict and takes the expected
222          floating point tolerances into account.
223        - NKSP VM API: Added methods VMScalarNumberExpr::evalCastInt() and
224          VMScalarNumberExpr::evalCastReal().
225        - NKSP VM API: Added base class 'VMNumberArrayExpr' for classes
226          'VMIntArrayExpr' and 'VMRealArrayExpr'.
227        - NKSP VM API: replaced all unitPrefix() (parse time) methods by
228          unitFactor() (runtime) methods.
229        - Built-in function "exit()" supports now returning units and 'final'ness
230          for test cases.
231        - The following built-in functions support now units as well: "abs()",
232          "random()", "inc()", "dec()", "in_range()", "min()", "max()",
233          "real_to_int()", "int()", "int_to_real()" and "real()".
234        - Built-in functions "array_equal()", "search()" and "sort()" support now
235          real number arrays (correctly) as well.
236        - Added individual parse time checks of arguments to be passed to built-in
237          functions "random()", "inc()", "dec()", "in_range()", "min()", "max()",
238          "array_equal()" and "search()" specific for their individual purposes.
239        - NKSP VM refactoring: Renamed all methods, functions and classes matching
240          pattern *ScalarNumber* to simply *Number* (that is i.e. classes
241          VMScalarNumberExpr -> VMNumberExpr, ScalarNumberExpr -> NumberExpr,
242          ScalarNumberVariable -> NumberVariable, ScalarNumberBinaryOp ->
243          NumberBinaryOp, VMScalarNumberResultFunction -> VMNumberResultFunction,
244          method VMExpr::asScalarNumberExpr() -> VMExpr::asNumber(), function
245          isScalarNumber() -> isNumber()).
246        - NKSP VM API: Added 4 overridden methods to class VMNumberExpr:
247          evalCastInt(MetricPrefix_t), evalCastInt(MetricPrefix_t,MetricPrefix_t),
248          evalCastReal(MetricPrefix_t), evalCastReal(MetricPrefix_t,MetricPrefix_t)
249          as convenient methods for automatically converting values to expected
250          metric value basis.
251        - Built-in function "wait()" accepts now both integers and real numbers as
252          argument.
253        - NKSP VM API cleanup: Get rid of legacy method
254          VMFunction::argType(vmint iArg) which was already superseded by its new
255          replacement VMFunction::acceptsArgType(vmint iArg, ExprType_t type).
256        - NKSP parser: if wrong argument type was passed to a built-in function and
257          that built-in function accepts more than one data type for the argument,
258          then show all supported data types as parser error message.
259        - Built-in function "play_note()" accepts now real numbers and seconds as
260          unit type as well for its 3rd and 4th function arguments.
261        - The following built-in functions accept now real numbers as well for their
262          2nd function argument: "change_vol()", "change_tune()", "change_cutoff()",
263          "change_attack()", "change_decay()", "change_release()",
264          "change_sustain()", "change_cutoff_attack()", "change_cutoff_decay()",
265          "change_cutoff_sustain()", "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()", "fade_in()", "fade_out()", "change_play_pos()".
269        - Fixed built-in function "change_play_pos()" not having accepted metric
270          prefixes at all.
271        - Fixed the following built-in functions having misinterpreted values given
272          with unit type (for their 2nd argument) as if they were relative values
273          (that is as if they were passed without a unit type): "change_attack()",
274          "change_decay()", "change_release()", "change_cutoff_attack()",
275          "change_cutoff_decay()", "change_cutoff_release()".
276        - Fixed the following built-in functions having applied completely wrong
277          'final' values: "change_sustain()", "change_cutoff_sustain()" (since the
278          respective EGs being their modulation sink assume uint data type with
279          value range 0..1000 instead of 0.0..1.0.
280        - Added individual parse-time checks of function arguments for the following
281          built-in functions: "play_note()", "note_off()", "set_event_mark()",
282          "delete_event_mark()", "by_marks()", "change_cutoff()", "change_attack()",
283          "change_decay()", "change_release()", "change_cutoff_attack()",
284          "change_cutoff_decay()", "change_cutoff_release()",
285          "change_amp_lfo_freq()", "change_cutoff_lfo_freq()",
286          "change_pitch_lfo_freq()", "change_vol_time()", "change_tune_time()" and
287          "change_pan_time()".
288        - Don't abort function call if unit type was used and at the same time
289          'final' operator was omitted for the primary value argument of the
290          following built-in functions: "change_cutoff()", "change_attack()",
291          "change_decay()", "change_release()", "change_cutoff_attack()",
292          "change_cutoff_decay()", "change_cutoff_release()",
293          "change_amp_lfo_freq()", "change_cutoff_lfo_freq()",
294          "change_pitch_lfo_freq()", "change_vol_time()", "change_tune_time()",
295          "change_pan_time()", instead imply 'final'ness at runtime and raise an
296          appropriate parser warning at parse time.
297        - Added built-in real number functions "round()", "ceil()", "floor()",
298          "sqrt()", "log()", "log2()", "log10()", "exp()", "pow()", "sin()",
299          "cos()", "tan()", "asin()", "acos()", "atan()".
300        - Added built-in script real number constant "~NI_MATH_PI".
301        - Added built-in script real number constant "~NI_MATH_E".
302        - NKSP language: Allow unary '+' operator.
303        - Added built-in script functions "msb()" and "lsb()".
304        - NKSP language: Added support for RPN event handler
305          ("on rpn ... end on" in instrument scripts).
306        - NKSP language: Added support for NRPN event handler
307          ("on nrpn ... end on" in instrument scripts).
308        - Added built-in read-only variables "$RPN_ADDRESS" and "$RPN_VALUE" which
309          may be read from the new RPN/NRPN script handlers to get the (N)RPN
310          parameter that had been changed and its new value.
311        - Added built-in const variables "$NI_CB_TYPE_RPN" and "$NI_CB_TYPE_NRPN"
312          which are identifying the new (N)RPN handlers as such at script runtime.
313        - Implemented built-in script function "set_rpn()".
314        - Implemented built-in script function "set_nrpn()".
315        - Fix: built-in functions returning an array type were broken and caused a
316          crash when the built-in function's (supposed to be array) result value was
317          used by the script VM.
318        - Removed upper value constraint for 2nd argument of built-in functions
319          "change_amp_lfo_freq()", "change_cutoff_lfo_freq()",
320          "change_pitch_lfo_freq()","change_reso()", "change_cutoff()",
321          "change_amp_lfo_depth()", "change_cutoff_lfo_depth()" and
322          "change_pitch_lfo_depth()", to allow e.g. passing value 2000000 to double
323          the LFO frequency / resonance / cutoff frequency.
324        - Reduced code involved for parsing NKSP variable declarations by using 2
325          generalized grammar rules with optional components (i.e. optional value
326          assignment and optional variable qualifiers) instead of previous linear
327          combinations of grammar rules, which also fixes some edge case.
328        - NKSP language parser: track code block locations also by a) raw byte
329          position in NKSP source code string and b) length of that code block in
330          bytes (along to the already existing code block tracking by line/column);
331          and added appropriate new members to public C++ API classes like
332          'firstByte' and 'lengthBytes' to class VMSourceToken and struct CodeBlock.
333        - NKSP language: Added support for 'patch' variable qualifier (capture their
334          locations and allow replacement of their assignment expression via VM C++
335          API).
336        - Fixed incorrect EG times if standard measuring unit was passed to built-in
337          functions "change_attack()", "change_decay()" or "change_release()".
338        - Fixed intermediate function result values never having reflected any
339          standard measuring unit type.
340        - Fixed re-entrant issue with function calls which caused wrong result
341          values if the same function was called multiple times in a term
342          (specifically if metric prefixes were used).
343        - NKSP language: Just throw a warning, not an error if an array variable of
344          size zero was declared.
345        - NKSP language: Allow omitting explicit array size on array variable
346          declaration if combined with immediate value assignment
347          (e.g. declare %foo[] := ( 1, 2, 3 ) ).
348        - NKSP language: emit warning if an array variable was declared with bigger
349          array size than amount of initial values been assigned, and initialize the
350          missing array elements with zero in this case.
351        - Fixed built-in NKSP exit() function to behave as return statement.
352        - NKSP parser: Fixed crash if unary '-' operator was used on a non-number
353          data type.
354        - NKSP VM: Fixed the "release" handler being executed too often under
355          certain situations if polyphonic data was passed from "note" handler to
356          "release" handler.
357        - Fixed memory leak in NKSP parser: string tokens were allocated as C
358          strings and never freed.
359        - Fixed incorrect polyphonic data transfer from wrong note handler to
360          release handler; which also fixes no release handler being executed
361          sometimes, and due to the latter it also fixes potential crashes as some
362          polyphonic script events were never released and the engine hence was
363          running out of free script events.
364        - Fixed crash when handling array results of built-in functions
365          (e.g. "num_elements(by_marks($MARK_1)").
366        - NKSP VM: Fixed dead note events not been removed from user's event groups
367          (i.e. causing incorrect behaviour of built-in NKSP functions by_marks()
368          and set_event_mark() after max. size of event group list was exhausted).
369    
370      * test cases:
371        - Fixed compiler errors in test cases.
372        - Updated README for how to compile & run test cases.
373        - Updated test case
374          MutexTest::testDoubleLockStillBlocksConcurrentThread() to latest
375          expected behaviour of the Mutex class implementation (recursive
376          mutex type).
377        - Added test cases for NKSP core language aspects and core built-in
378          functions.
379        - Fixed thread tests segfaulting on Linux.
380        - NKSP: Added real number test cases for built-in functions exit(),
381          int_to_real(), real(), real_to_int() and int(), as well as for the
382          plus, minus and negate language operators.
383        - Added massive amount of NKSP test cases for standard measuring units and
384          'final' operator usage cases.
385        - Added NKSP test cases for (floating point tolerance aware) real number
386          equalness / unequalness comparison.
387        - Added NKSP int array and real array tests for value assignment and
388          initialization of arrays.
389        - Added NKSP test cases for built-in functions "round()", "ceil()",
390          "floor()", "sqrt()", "log()", "log2()", "log10()", "exp()", "pow()",
391          "sin()", "cos()", "tan()", "asin()", "acos()", "atan()".
392        - Added NKSP test cases for unary '+' operator.
393        - Added NKSP test cases for core built-in variables.
394        - Added thorough NKSP test cases for variable declarations.
395    
396      * GigaStudio/Gigasampler format engine:
397        - LFOTriangleIntMath and LFOTriangleIntAbsMath: Fixed FlipPhase=true
398          behaviour for start_level_mid.
399        - Changed LFO start levels: LFO1 and LFO2 both to mid, LFO3 to max. start
400          level (see discussion "GigaStudio LFO compatibility" on mailing list
401          from 2019-09-26 for details).
402        - Changed default wave form for all 3 LFOs to sine (instead of triangle;
403          see discussion "GigaStudio LFO compatibility" on mailing list from
404          2019-09-26 for details).
405        - Format extension: Added support for different LFO wave forms (currently
406          either sine [default], triangle, saw or square).
407        - Format extension: Added support for LFO phase displacement (0°..360°).
408        - Format extension: Added support for flipping LFO polarity on LFO 3
409          (in the original gig format this was only available for LFO 1 and LFO 2).
410        - Format extension: Support for additional filter types:
411          lowpass 1/2/4/6-pole, highpass 1/2/4/6-pole, bandpass 2-pole,
412          bandreject 2-pole.
413        - Fixd potential crash with polynomial interpolator and max. pitch.
414        - If minimum cutoff is defined, remap cutoff controller CC values to really
415          span the entire possible cutoff range (and avoiding a dead controller
416          zone).
417        - Implemented support for loading instrument scripts with 'patch' variables
418          (by patching these script variables with potentially overridden ones by
419          gig Instrument).
420    
421      * SFZ format engine:
422        - Fixed support for regions with loccN/hiccN conditions on more than one
423          MIDI controller.
424        - Fixed internal opcode 'xfin_hivel' falsely being set by user opcode
425          'xfin_lovel' (patch by Christian Czezatke).
426    
427      * Benchmarks:
428        - Fixed benchmarks/triang.cpp falsely having favoured "int math abs"
429          algorithm (since result of 2nd run was not accumulated).
430        - Added benchmark for saw wave (benchmarks/saw.cpp).
431        - Added benchmark for sine wave (benchmarks/sine.cpp).
432        - Added benchmark for square wave (benchmarks/square.cpp).
433        - Increased amount of benchmarks runs by factor 6 to achieve benchmark times
434          which are large enough on modern systems.
435    
436    Version 2.1.1 (27 Jul 2019)
437    
438      * Real-time instrument scripts:
439        - Fixed behavior of built-in NKSP functions change_sustain(),
440          change_cutoff_attack(), change_cutoff_decay(), change_cutoff_sustain()
441          and change_cutoff_release().
442    
443      * general changes:
444        - Only play release trigger samples on sustain pedal up if this behaviour
445          was explicitly requested by the instrument (otherwise only on note-off).
446        - Fixed compiler warnings.
447        - Fixed compilation error when cross-compiling to Mac.
448        - FX Sends: Provide more useful error messages on routing problems
449          (see bug #169).
450        - LSCP doc: Be more clear describing the two distinct approaches
451          of using external vs. internal effects (see bug #169).
452        - "optional" class: Fixed comparison operators.
453    
454      * Gigasampler/GigaStudio format engine:
455        - Format extension: If requested by instrument then don't play release
456          trigger sample on note-off events.
457    
458      * SFZ format engine:
459        - Fixed memory leak when releasing samples
460          (fixes bug #307, patch by Jacek Roszkowski)
461        - Fixed potential crash when a sample is shared by more than one region
462          (fixes bug #308, patch by Jacek Roszkowski).
463        - Opcode 'sample': Added support for built-in sample '*silence'
464          (fixes bug #310, patch by Jacek Roszkowski).
465    
466    Version 2.1.0 (25 Nov 2017)
467    
468    * SFZ format engine:    * SFZ format engine:
469      - added support for <global>, <master> and #define (patch by Alby M)      - added support for <global>, <master> and #define (patch by Alby M)
470      - Removed code duplication in SFZ file loading code.      - Removed code duplication in SFZ file loading code.
# Line 7  Version SVN trunk (?) Line 472  Version SVN trunk (?)
472        load real-time instrument script file (NKSP script language).        load real-time instrument script file (NKSP script language).
473      - Implemented opcode set_ccN (initial patch by Giovanni Senatore).      - Implemented opcode set_ccN (initial patch by Giovanni Senatore).
474      - Fixed unintended volume fade-in of voices under certain conditions.      - Fixed unintended volume fade-in of voices under certain conditions.
475        - sfz parser: allow missing space between header and opcode
476    
477    * Gigasampler/GigaStudio format engine:    * Gigasampler/GigaStudio format engine:
478      - Fixed clicks and pumping noise with Lowpass Turbo filter on very low      - Fixed clicks and pumping noise with Lowpass Turbo filter on very low
479        cutoff settings.        cutoff settings.
480        - Got rid of resembling an ancient GSt misbehavior which did not pitch at
481          all if an up-pitch of more than 40 semi tones was requested (I don't
482          think there is any stock gig sound that requires this behavior to
483          resemble its original sound).
484        - Added support for controlling whether the individual EGADSR stages may
485          be aborted (as LinuxSampler extension to the original GigaStudio 4
486          format).
487    
488    * general changes:    * general changes:
489      - fixed printf type errors (mostly in debug messages)      - fixed printf type errors (mostly in debug messages)
# Line 44  Version SVN trunk (?) Line 517  Version SVN trunk (?)
517        sub threads is 16-byte aligned        sub threads is 16-byte aligned
518      - fixed numerous compiler warnings      - fixed numerous compiler warnings
519      - Fixed invalid (note-on) event ID being assigned to new Note objects.      - Fixed invalid (note-on) event ID being assigned to new Note objects.
520        - Revised fundamental C++ classes "Thread", "Mutex" and "Condition" which
521          fixes potential undefined behavior.
522        - Fixed Note object leak when triggering notes on keys which did not
523          have a valid sample mapped (fixes bug #252).
524        - Fixed compilation errors when compiling with CONFIG_DEVMODE enabled.
525        - linuxsampler binary fix: option --create-instruments-db ignored
526          subsequent optional argument due to glibc's implementation oddity
527          which expects a "=" sign, but no space between them.
528    
529    * packaging changes:    * packaging changes:
530      - removed unnecessary dependency to libuuid      - removed unnecessary dependency to libuuid
531        (originated by libgig's usage of it)        (originated by libgig's usage of it)
532      - Automake: set environment variable GCC_COLORS=auto to allow GCC to      - Automake: set environment variable GCC_COLORS=auto to allow GCC to
533        auto detect whether it (sh/c)ould output its messages in color.        auto detect whether it (sh/c)ould output its messages in color.
534        - Debian: Fixed packaging error about invalid "Source-Version"
535          substitution variable.
536        - Debian: Raised Debian compatibility level to Debian 9 "Stretch".
537        - Debian: Added build dependency to libsqlite3-dev for building
538          linuxsampler with instruments DB support.
539    
540    * Real-time instrument scripts:    * Real-time instrument scripts:
541      - Implemented scheduler for delayed MIDI events and for suspended scripts.      - Implemented scheduler for delayed MIDI events and for suspended scripts.
# Line 187  Version SVN trunk (?) Line 673  Version SVN trunk (?)
673       - built-in "play_note()" function now supports a sample playback start       - built-in "play_note()" function now supports a sample playback start
674         offset with argument 3, where special value -1 means to use the regular         offset with argument 3, where special value -1 means to use the regular
675         sample offset as defined by the instrument file.         sample offset as defined by the instrument file.
676         - Built-in array variable %KEY_DOWN[] is now a read-only variable.
677         - Built-in variable $EVENT_NOTE is now a read-only variable.
678         - Built-in variable $EVENT_VELOCITY is now a read-only variable.
679         - built-in "play_note()" function now accepts -2 for its fourth argument
680           (note duration) which means the life time of the note shall be sticked
681           to the requested note number of argument 1.
682         - Fix: built-in "play_note()" function now returns 0 as result value if
683           -1 was passed for its fourth argument (note duration) and the respective
684           parent note is already gone.
685        - Implemented built-in script function "change_play_pos()".
686        - NKSP language: Added support for user declared const array variables.
687        - NKSP language: Raise parser warning if array variable is accessed with
688          an index that exceeds the array's size.
689        - NKSP language fix: Unknown characters were not handled correctly.
690        - NKSP language: Added support for "synchronized .. end synchronized"
691          code blocks.
692        - Implemented built-in script function "abort()" which allows to abort
693          another script handler by passing its callback ID.
694        - Fixed potential memory access bug and potential undefined behavior of
695          "init" event handlers.
696        - Print a time stamp along to each call of built-in function "message()".
697        - ScriptVM API: Added VMParserContext::preprocessorComments() which allows
698          to retrieve all code blocks filtered out by the preprocessor.
699        - Added built-in script function "fork()".
700        - Added built-in array variable %NKSP_CALLBACK_CHILD_ID[].
701        - Added built-in variable $NKSP_CALLBACK_PARENT_ID.
702        - Fixed potential crash when accessing dynamic built-in array variables.
703        - Added built-in script function "callback_status()".
704        - Added built-in constant $CALLBACK_STATUS_TERMINATED.
705        - Added built-in constant $CALLBACK_STATUS_QUEUE.
706        - Added built-in constant $CALLBACK_STATUS_RUNNING.
707        - Removed max. value limitation of built-in functions "change_attack()",
708          "change_decay()" and "change_release()" to i.e. allow passing 2000000
709          for doubling the respective time.
710        - NKSP script editor syntax highlighting API: Fixed app termination due
711          to a lexer start condition stack underrun.
712        - NKSP preprocessor: Fixed wrong behavior on nested USE_CODE_IF() and
713          USE_CODE_IF_NOT() preprocessor statements.
714        - NKSP: Added built-in preprocessor condition NKSP_NO_MESSAGE, which
715          can be set to disable all subsequent built-in "message()" function calls
716          on preprocessor level.
717        - Implemented built-in script function "change_sustain()".
718        - NKSP script editor syntax highlighting API: catch all fatal lexer errors,
719          to avoid the editor app to crash on ill-formed text input.
720        - Added built-in script function "change_pan_time()".
721        - Added built-in script function "change_pan_curve()".
722        - Added built-in script function "change_cutoff_attack()".
723        - Added built-in script function "change_cutoff_decay()".
724        - Added built-in script function "change_cutoff_sustain()".
725        - Added built-in script function "change_cutoff_release()".
726        - Added built-in script function "change_cutoff_lfo_depth()".
727        - Added built-in script function "change_cutoff_lfo_freq()".
728    
729    * Instruments DB:    * Instruments DB:
730      - Fixed memory access bug of general DB access code which lead to      - Fixed memory access bug of general DB access code which lead to
# Line 671  Version 2.0.0 (15 July 2015) Line 1209  Version 2.0.0 (15 July 2015)
1209        $GIG_DIM_EFFECT3DEPTH, $GIG_DIM_EFFECT4DEPTH, $GIG_DIM_EFFECT5DEPTH.        $GIG_DIM_EFFECT3DEPTH, $GIG_DIM_EFFECT4DEPTH, $GIG_DIM_EFFECT5DEPTH.
1210      - Giga format scripts: Implemented built-in script function      - Giga format scripts: Implemented built-in script function
1211        "gig_set_dim_zone(event_id, dimension, zone)".        "gig_set_dim_zone(event_id, dimension, zone)".
1212      - Implemented built-in script int array variable $KEY_DOWN.      - Implemented built-in script int array variable %KEY_DOWN.
1213      - Implemented built-in script function "abs()".      - Implemented built-in script function "abs()".
1214      - Implemented built-in script function "random()".      - Implemented built-in script function "random()".
1215      - Implemented built-in script function "num_elements()".      - Implemented built-in script function "num_elements()".
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