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revision 3552 by schoenebeck, Tue Aug 6 13:18:59 2019 UTC revision 3967 by schoenebeck, Sun Jun 20 11:09:30 2021 UTC
# Line 1  Line 1 
1  Version SVN trunk (?)  Version SVN trunk (?)
2    
3      * GigaStudio/Gigasampler format engine:
4        - Use libgig's new IO-per-thread feature to avoid file I/O concurrency
5          issues with .gig file.
6        - Use libgig's new method gig::File::GetSample() with method
7          gig::File::CountSamples() instead of now deprecated
8          gig::File::GetFirstSample() / gig::File::GetNextSample() pair.
9        - Use libgig's new method gig::Instrument::GetRegionAt() with method
10          gig::Instrument:CountRegions() instead of now deprecated
11          gig::Instrument::GetFirstRegion() / gig::Instrument::GetNextRegion() pair.
12        - Use libgig's gig::File::GetInstrument() method with method
13          gig::File::CountInstruments() instead of now deprecated
14          gig::File::GetFirstInstrument() / gig::File::GetNextInstrument() pair.
15    
16    Version 2.2.0 (9 May 2021)
17    
18    * general changes:    * general changes:
19      - Fixed compiler error in Pool.h.      - Fixed compiler error in Pool.h.
20        - Require C++14 compiler support.
21        - Autoconf: Added m4/ax_cxx_compile_stdcxx.m4 macro which is used
22          for checking in configure for C++14 support (as mandatory
23          requirement) and automatically adds compiler argument if required
24          (e.g. -std=C++14).
25        - RTMath: Implemented floating point comparison methods
26          fEqual32(float,float) and fEqual64(double,double) which take the
27          expected floating point tolerances into account.
28        - Added public API C++ class "LFO", which is a cluster class encapsulating
29          all the sampler's LFO implementations to be used by 3rd party applications
30          (e.g. by Gigedit).
31        - Added int math square LFO implementation.
32        - Added int math saw LFO implementation.
33        - Added numeric complex nr sine LFO implementation.
34        - Marked class LFOTriangleDiHarmonic as deprecated
35          (will be removed in future).
36        - Added LFOAll.h which includes all LFO implementation's header files.
37        - Refactored LFO class names and their file names (PulseLFO -> LFOPulse,
38          LFOSawIntMath -> LFOSawIntMathNew, SawLFO -> LFOSawIntMathOld,
39          SineLFO -> LFOSineBuiltinFn, LFOSine -> LFOSineNumericComplexNr,
40          SquareLFO -> LFOSquarePulse and separated the latter to its own header
41          file).
42        - Renamed type LFOSigned -> LFOTriangleSigned.
43        - Renamed type LFOUnsigned -> LFOTriangleUnsigned.
44        - Using now cubic interpolation as resampling algorithm by default; and
45          linear interpolation is deprecated now.
46        - Event:Init(): memset() entire Event::Param union to zero instead of trying
47          to do that for its individual members; the latter became error prone due
48          to the union's growing complexity meanwhile.
49        - EngineChannel: Overhaul of RPN/NRPN related methods: Added new
50          *Rpn*Parameter*() methods as replacement for previous *Rpn*Controller*()
51          methods and marked the old ones as deprecated; and likewise added new
52          *Nrpn*Parameter*() methods as replacement for previous *Nrpn*Controller*()
53          methods and marked those old ones deprecated as well.
54        - Added support for MIDI CC #38 (data entry LSB): this allows higher value
55          resolution for certain (e.g. hard coded) RPN and NRPN parameters.
56        - Implemented support for compressed RPN/NRPN message sequences (that is to
57          allow processing MIDI data entry messages without always having to be
58          preceded strictly by RPN/NRPN parameter selection messages on each value
59          change).
60        - Added support for MIDI CC #96 (data increment) and MIDI CC #97 (data
61          decrement).
62        - Added support for 'null function RPN/NRPN' (which is RPN/NRPN parameter
63          MSB=127 and LSB=127) and which is disabling subsequent data
64          entry/increment/decrement CC messages.
65        - Fixed crash when editing key groups (a.k.a. exclusive groups) with an
66          instrument editor.
67        - Fixed playing noise at the end of a disk stream under certain conditions.
68        - Fixed potential crash with high pitch at end of RAM playback.
69        - Added configure checks whether C++ compiler supports so called
70          'designated initializers'.
71        - Added global backtraceAsString() function for debugging purposes
72          (POSIX systems only, no Windows implementation yet).
73        - Thread class: Added new methods pushCancelable(), popCancelable(), name(),
74          nameOfCaller() and setNameOfCaller().
75        - configure: Always check for availability of pthread_testcancel() and use
76          it if so (previously it was only used if explicitly enabled by configure
77          option).
78        - Thread class: raise compiler warning if pthread_testcancel() is not
79          available, because it can lead to deadlocks.
80        - Mutex class: Implemented optional bug detection and deadlock debugging
81          features.
82        - Ref<> class is now thread safe (as lock-free and wait-free
83          implementation).
84        - Fixed compilation error with Bison >= 3.6.0.
85        - Fixed rare crash when switching between instruments that had instrument
86          scripts loaded.
87        - Allow EffectChain::InsertEffect() as alternative to
88          EffectChain::AppendEffect() (i.e. with index equal to current chain size).
89        - ConstCapacityArray class: Fixed bug in remove() method.
90        - Fixed crash on certain MIDI RPN and NRPN messages that occurred if no
91          real-time instrument script was loaded.
92    
93    * Real-time instrument scripts:    * Real-time instrument scripts:
94      - Added method ScriptVM::setExitResultEnabled() which allows to      - Added method ScriptVM::setExitResultEnabled() which allows to
# Line 9  Version SVN trunk (?) Line 96  Version SVN trunk (?)
96        one function argument; the value of the passed exit() function        one function argument; the value of the passed exit() function
97        argument will then become available by calling        argument will then become available by calling
98        VMExecContext::exitResult() after script execution.        VMExecContext::exitResult() after script execution.
99        - 64 bit support for NKSP integer scripts variables (declare $foo).
100        - Variable names, function names and preprocessor condition names must start
101          with a regular character (a-z or A-Z); starting them with a digit or
102          underscore is not allowed.
103        - NKSP parser fix: equal comparison operator "=" and not equal comparison
104          operator "#" must only accept integer operands.
105        - NKSP language: Implemented support for standard units like Hertz, seconds,
106          Bel including support for metric unit prefixes; so one can now e.g.
107          conveniently use numbers in scripts like "5us" meaning "5 microseconds",
108          or e.g. "12kHz" meaning "12 kilo Hertz", or e.g. "-14mdB" meaning
109          "minus 14 Millidecibel", or e.g. "28c" meaning "28 cents" (for tuning).
110        - NKSP language: Introduced "final" operator "!" which is specifically
111          intended for synthesis parameter values to denote that the synthesis
112          parameter value is intended to be the "final" value for that synthesis
113          parameter that should explicitly be used by the engine and thus causing
114          the sampler engine to ignore all other modulation sources for the same
115          synthesis parameter (like e.g. LFO, EG); by simply prefixing a value,
116          variable or formula with this new "!" operator the expression is marked as
117          being "final".
118        - NKSP script editor API: Added support for detecting standard unit tokens
119          and their potential metric prefix token.
120        - NKSP language: Added support for NKSP real number literals and
121          arithmetic operations on them (e.g. "(3.9 + 2.9) / 12.3 - 42.0").
122        - NKSP language: Added support for NKSP real number (floating point) script
123          variables (declare ~foo).
124        - NKSP language: Added support for NKSP real number (floating point) array
125          script variables (declare ?foo[]).
126        - Built-in script function "message()" accepts now real number argument as
127          well.
128        - Added built-in script function "real_to_int()" and its short hand form
129          "int()" for casting from real number to integer in NKSP scripts.
130        - Added built-in script function "int_to_real()" and its short hand form
131          "real()" for casting from integer to real number in NKSP scripts.
132        - Allow built-in exit() function to potentially accept real number type
133          argument as well.
134        - Built-in script functions may have a different return type depending on
135          the arguments passed to the function.
136        - Built-in script function "abs()" optionally accepts and returns real
137          number.
138        - Built-in script functions "min()" and "max()" optionally accept real
139          number arguments and return real number as result in that case.
140        - NKSP VM API: Allow units and 'final'ness to be returned as result from
141          built-in functions (added methods VMFunction::returnUnitType() and
142          VMFunction::returnsFinal() for that purpose which must be implemented by
143          built-in function implementations).
144        - NKSP language: Allow metric unit prefixes of numeric scalar and array
145          variables to be changed freely at runtime (unlike unit types like Hz etc.
146          which are still sticky, parse-time features of variables which cannot be
147          changed at runtime for the intentional sake of determinism).
148        - NKSP language: 'final' values are prohibited for array variables for now
149          (attempt causes a parsers error).
150        - NKSP language: expressions with unit types (e.g. Hz) are prohibited for
151          conditions of runtime control structures like if(), while(), select()
152          (attempt causes a parser error).
153        - NKSP VM API: Allow built-in functions to perform their own, individual
154          parse time checks of arguments going to be passed to the function at
155          runtime (added method VMFunction::checkArgs() for that purpose).
156        - NKSP language: raise parser warning if only one operand of binary
157          operators (like logical 'or' comparison) contain a 'final' value (because
158          it would always yield in a 'final' result in such cases).
159        - NKSP language: Allow comparison (=, #, <, >, <=, >=) of values with
160          different metric unit prefixes, which will behave as expected (e.g.
161          result of expression '1000us < 2ms' is true).
162        - NKSP language: Allow adding values with different metric unit prefixes
163          (e.g. result of expression '100Hz + 5kHz' is '5100Hz').
164        - NKSP language: Allow subtracting values with different metric unit
165          prefixes (e.g. result of expression '1ms - 20us' is '980us').
166        - NKSP language: Allow multiplying with any metric unit prefixes
167          (e.g. result of expression '2k * 3ms' is '6s'), however multiplications
168          with unit types on both sides (e.g. '2s * 2s') is still prohibited since
169          we don't have any considerable practical use for a term like '4s^2'
170          (hence any attempt multiplying two unit types still causes parser error).
171        - NKSP language: Allow dividing by any metric unit prefixes and allow
172          division of same unit type on both sides (e.g. expression '8kHz / 1000Hz'
173          yields in unit free result '8'). So this is now a way to cast units away
174          e.g. for passing the result to other expressions, certain function calls
175          or variables which are not accepting any units (or that specific unit).
176        - NKSP language: integer arrays and real number arrays can now be converted
177          to strings (e.g. for dumping their content with message() calls for
178          script debugging purposes).
179        - NKSP language: expressions and variables with units are now correctly
180          casted to strings (e.g. with message() calls).
181        - NKSP language: comparing real numbers for equalness (e.g. '~foo = 3.1') or
182          unequalness (e.g. '~foo # 3.1') is now less strict and takes the expected
183          floating point tolerances into account.
184        - NKSP VM API: Added methods VMScalarNumberExpr::evalCastInt() and
185          VMScalarNumberExpr::evalCastReal().
186        - NKSP VM API: Added base class 'VMNumberArrayExpr' for classes
187          'VMIntArrayExpr' and 'VMRealArrayExpr'.
188        - NKSP VM API: replaced all unitPrefix() (parse time) methods by
189          unitFactor() (runtime) methods.
190        - Built-in function "exit()" supports now returning units and 'final'ness
191          for test cases.
192        - The following built-in functions support now units as well: "abs()",
193          "random()", "inc()", "dec()", "in_range()", "min()", "max()",
194          "real_to_int()", "int()", "int_to_real()" and "real()".
195        - Built-in functions "array_equal()", "search()" and "sort()" support now
196          real number arrays (correctly) as well.
197        - Added individual parse time checks of arguments to be passed to built-in
198          functions "random()", "inc()", "dec()", "in_range()", "min()", "max()",
199          "array_equal()" and "search()" specific for their individual purposes.
200        - NKSP VM refactoring: Renamed all methods, functions and classes matching
201          pattern *ScalarNumber* to simply *Number* (that is i.e. classes
202          VMScalarNumberExpr -> VMNumberExpr, ScalarNumberExpr -> NumberExpr,
203          ScalarNumberVariable -> NumberVariable, ScalarNumberBinaryOp ->
204          NumberBinaryOp, VMScalarNumberResultFunction -> VMNumberResultFunction,
205          method VMExpr::asScalarNumberExpr() -> VMExpr::asNumber(), function
206          isScalarNumber() -> isNumber()).
207        - NKSP VM API: Added 4 overridden methods to class VMNumberExpr:
208          evalCastInt(MetricPrefix_t), evalCastInt(MetricPrefix_t,MetricPrefix_t),
209          evalCastReal(MetricPrefix_t), evalCastReal(MetricPrefix_t,MetricPrefix_t)
210          as convenient methods for automatically converting values to expected
211          metric value basis.
212        - Built-in function "wait()" accepts now both integers and real numbers as
213          argument.
214        - NKSP VM API cleanup: Get rid of legacy method
215          VMFunction::argType(vmint iArg) which was already superseded by its new
216          replacement VMFunction::acceptsArgType(vmint iArg, ExprType_t type).
217        - NKSP parser: if wrong argument type was passed to a built-in function and
218          that built-in function accepts more than one data type for the argument,
219          then show all supported data types as parser error message.
220        - Built-in function "play_note()" accepts now real numbers and seconds as
221          unit type as well for its 3rd and 4th function arguments.
222        - The following built-in functions accept now real numbers as well for their
223          2nd function argument: "change_vol()", "change_tune()", "change_cutoff()",
224          "change_attack()", "change_decay()", "change_release()",
225          "change_sustain()", "change_cutoff_attack()", "change_cutoff_decay()",
226          "change_cutoff_sustain()", "change_cutoff_release()",
227          "change_amp_lfo_freq()", "change_cutoff_lfo_freq()",
228          "change_pitch_lfo_freq()", "change_vol_time()", "change_tune_time()",
229          "change_pan_time()", "fade_in()", "fade_out()", "change_play_pos()".
230        - Fixed built-in function "change_play_pos()" not having accepted metric
231          prefixes at all.
232        - Fixed the following built-in functions having misinterpreted values given
233          with unit type (for their 2nd argument) as if they were relative values
234          (that is as if they were passed without a unit type): "change_attack()",
235          "change_decay()", "change_release()", "change_cutoff_attack()",
236          "change_cutoff_decay()", "change_cutoff_release()".
237        - Fixed the following built-in functions having applied completely wrong
238          'final' values: "change_sustain()", "change_cutoff_sustain()" (since the
239          respective EGs being their modulation sink assume uint data type with
240          value range 0..1000 instead of 0.0..1.0.
241        - Added individual parse-time checks of function arguments for the following
242          built-in functions: "play_note()", "note_off()", "set_event_mark()",
243          "delete_event_mark()", "by_marks()", "change_cutoff()", "change_attack()",
244          "change_decay()", "change_release()", "change_cutoff_attack()",
245          "change_cutoff_decay()", "change_cutoff_release()",
246          "change_amp_lfo_freq()", "change_cutoff_lfo_freq()",
247          "change_pitch_lfo_freq()", "change_vol_time()", "change_tune_time()" and
248          "change_pan_time()".
249        - Don't abort function call if unit type was used and at the same time
250          'final' operator was omitted for the primary value argument of the
251          following built-in functions: "change_cutoff()", "change_attack()",
252          "change_decay()", "change_release()", "change_cutoff_attack()",
253          "change_cutoff_decay()", "change_cutoff_release()",
254          "change_amp_lfo_freq()", "change_cutoff_lfo_freq()",
255          "change_pitch_lfo_freq()", "change_vol_time()", "change_tune_time()",
256          "change_pan_time()", instead imply 'final'ness at runtime and raise an
257          appropriate parser warning at parse time.
258        - Added built-in real number functions "round()", "ceil()", "floor()",
259          "sqrt()", "log()", "log2()", "log10()", "exp()", "pow()", "sin()",
260          "cos()", "tan()", "asin()", "acos()", "atan()".
261        - Added built-in script real number constant "~NI_MATH_PI".
262        - Added built-in script real number constant "~NI_MATH_E".
263        - NKSP language: Allow unary '+' operator.
264        - Added built-in script functions "msb()" and "lsb()".
265        - NKSP language: Added support for RPN event handler
266          ("on rpn ... end on" in instrument scripts).
267        - NKSP language: Added support for NRPN event handler
268          ("on nrpn ... end on" in instrument scripts).
269        - Added built-in read-only variables "$RPN_ADDRESS" and "$RPN_VALUE" which
270          may be read from the new RPN/NRPN script handlers to get the (N)RPN
271          parameter that had been changed and its new value.
272        - Added built-in const variables "$NI_CB_TYPE_RPN" and "$NI_CB_TYPE_NRPN"
273          which are identifying the new (N)RPN handlers as such at script runtime.
274        - Implemented built-in script function "set_rpn()".
275        - Implemented built-in script function "set_nrpn()".
276        - Fix: built-in functions returning an array type were broken and caused a
277          crash when the built-in function's (supposed to be array) result value was
278          used by the script VM.
279        - Removed upper value constraint for 2nd argument of built-in functions
280          "change_amp_lfo_freq()", "change_cutoff_lfo_freq()",
281          "change_pitch_lfo_freq()","change_reso()", "change_cutoff()",
282          "change_amp_lfo_depth()", "change_cutoff_lfo_depth()" and
283          "change_pitch_lfo_depth()", to allow e.g. passing value 2000000 to double
284          the LFO frequency / resonance / cutoff frequency.
285        - Reduced code involved for parsing NKSP variable declarations by using 2
286          generalized grammar rules with optional components (i.e. optional value
287          assignment and optional variable qualifiers) instead of previous linear
288          combinations of grammar rules, which also fixes some edge case.
289        - NKSP language parser: track code block locations also by a) raw byte
290          position in NKSP source code string and b) length of that code block in
291          bytes (along to the already existing code block tracking by line/column);
292          and added appropriate new members to public C++ API classes like
293          'firstByte' and 'lengthBytes' to class VMSourceToken and struct CodeBlock.
294        - NKSP language: Added support for 'patch' variable qualifier (capture their
295          locations and allow replacement of their assignment expression via VM C++
296          API).
297        - Fixed incorrect EG times if standard measuring unit was passed to built-in
298          functions "change_attack()", "change_decay()" or "change_release()".
299        - Fixed intermediate function result values never having reflected any
300          standard measuring unit type.
301        - Fixed re-entrant issue with function calls which caused wrong result
302          values if the same function was called multiple times in a term
303          (specifically if metric prefixes were used).
304        - NKSP language: Just throw a warning, not an error if an array variable of
305          size zero was declared.
306        - NKSP language: Allow omitting explicit array size on array variable
307          declaration if combined with immediate value assignment
308          (e.g. declare %foo[] := ( 1, 2, 3 ) ).
309        - NKSP language: emit warning if an array variable was declared with bigger
310          array size than amount of initial values been assigned, and initialize the
311          missing array elements with zero in this case.
312        - Fixed built-in NKSP exit() function to behave as return statement.
313        - NKSP parser: Fixed crash if unary '-' operator was used on a non-number
314          data type.
315        - NKSP VM: Fixed the "release" handler being executed too often under
316          certain situations if polyphonic data was passed from "note" handler to
317          "release" handler.
318        - Fixed memory leak in NKSP parser: string tokens were allocated as C
319          strings and never freed.
320        - Fixed incorrect polyphonic data transfer from wrong note handler to
321          release handler; which also fixes no release handler being executed
322          sometimes, and due to the latter it also fixes potential crashes as some
323          polyphonic script events were never released and the engine hence was
324          running out of free script events.
325        - Fixed crash when handling array results of built-in functions
326          (e.g. "num_elements(by_marks($MARK_1)").
327        - NKSP VM: Fixed dead note events not been removed from user's event groups
328          (i.e. causing incorrect behaviour of built-in NKSP functions by_marks()
329          and set_event_mark() after max. size of event group list was exhausted).
330    
331    * test cases:    * test cases:
332      - Fixed compiler errors in test cases.      - Fixed compiler errors in test cases.
# Line 20  Version SVN trunk (?) Line 338  Version SVN trunk (?)
338      - Added test cases for NKSP core language aspects and core built-in      - Added test cases for NKSP core language aspects and core built-in
339        functions.        functions.
340      - Fixed thread tests segfaulting on Linux.      - Fixed thread tests segfaulting on Linux.
341        - NKSP: Added real number test cases for built-in functions exit(),
342          int_to_real(), real(), real_to_int() and int(), as well as for the
343          plus, minus and negate language operators.
344        - Added massive amount of NKSP test cases for standard measuring units and
345          'final' operator usage cases.
346        - Added NKSP test cases for (floating point tolerance aware) real number
347          equalness / unequalness comparison.
348        - Added NKSP int array and real array tests for value assignment and
349          initialization of arrays.
350        - Added NKSP test cases for built-in functions "round()", "ceil()",
351          "floor()", "sqrt()", "log()", "log2()", "log10()", "exp()", "pow()",
352          "sin()", "cos()", "tan()", "asin()", "acos()", "atan()".
353        - Added NKSP test cases for unary '+' operator.
354        - Added NKSP test cases for core built-in variables.
355        - Added thorough NKSP test cases for variable declarations.
356    
357      * GigaStudio/Gigasampler format engine:
358        - LFOTriangleIntMath and LFOTriangleIntAbsMath: Fixed FlipPhase=true
359          behaviour for start_level_mid.
360        - Changed LFO start levels: LFO1 and LFO2 both to mid, LFO3 to max. start
361          level (see discussion "GigaStudio LFO compatibility" on mailing list
362          from 2019-09-26 for details).
363        - Changed default wave form for all 3 LFOs to sine (instead of triangle;
364          see discussion "GigaStudio LFO compatibility" on mailing list from
365          2019-09-26 for details).
366        - Format extension: Added support for different LFO wave forms (currently
367          either sine [default], triangle, saw or square).
368        - Format extension: Added support for LFO phase displacement (0°..360°).
369        - Format extension: Added support for flipping LFO polarity on LFO 3
370          (in the original gig format this was only available for LFO 1 and LFO 2).
371        - Format extension: Support for additional filter types:
372          lowpass 1/2/4/6-pole, highpass 1/2/4/6-pole, bandpass 2-pole,
373          bandreject 2-pole.
374        - Fixd potential crash with polynomial interpolator and max. pitch.
375        - If minimum cutoff is defined, remap cutoff controller CC values to really
376          span the entire possible cutoff range (and avoiding a dead controller
377          zone).
378        - Implemented support for loading instrument scripts with 'patch' variables
379          (by patching these script variables with potentially overridden ones by
380          gig Instrument).
381    
382      * SFZ format engine:
383        - Fixed support for regions with loccN/hiccN conditions on more than one
384          MIDI controller.
385        - Fixed internal opcode 'xfin_hivel' falsely being set by user opcode
386          'xfin_lovel' (patch by Christian Czezatke).
387    
388      * Benchmarks:
389        - Fixed benchmarks/triang.cpp falsely having favoured "int math abs"
390          algorithm (since result of 2nd run was not accumulated).
391        - Added benchmark for saw wave (benchmarks/saw.cpp).
392        - Added benchmark for sine wave (benchmarks/sine.cpp).
393        - Added benchmark for square wave (benchmarks/square.cpp).
394        - Increased amount of benchmarks runs by factor 6 to achieve benchmark times
395          which are large enough on modern systems.
396    
397  Version 2.1.1 (27 Jul 2019)  Version 2.1.1 (27 Jul 2019)
398    

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