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revision 3381 by schoenebeck, Tue Nov 28 15:54:49 2017 UTC revision 3687 by schoenebeck, Thu Jan 2 22:37:07 2020 UTC
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1  Version SVN trunk (?)  Version SVN trunk (?)
2    
3      * general changes:
4        - Fixed compiler error in Pool.h.
5        - Require C++14 compiler support.
6        - Autoconf: Added m4/ax_cxx_compile_stdcxx.m4 macro which is used
7          for checking in configure for C++14 support (as mandatory
8          requirement) and automatically adds compiler argument if required
9          (e.g. -std=C++14).
10        - RTMath: Implemented floating point comparison methods
11          fEqual32(float,float) and fEqual64(double,double) which take the
12          expected floating point tolerances into account.
13        - Added public API C++ class "LFO", which is a cluster class encapsulating
14          all the sampler's LFO implementations to be used by 3rd party applications
15          (e.g. by Gigedit).
16        - Added int math square LFO implementation.
17        - Added int math saw LFO implementation.
18        - Added numeric complex nr sine LFO implementation.
19        - Marked class LFOTriangleDiHarmonic as deprecated
20          (will be removed in future).
21        - Added LFOAll.h which includes all LFO implementation's header files.
22        - Refactored LFO class names and their file names (PulseLFO -> LFOPulse,
23          LFOSawIntMath -> LFOSawIntMathNew, SawLFO -> LFOSawIntMathOld,
24          SineLFO -> LFOSineBuiltinFn, LFOSine -> LFOSineNumericComplexNr,
25          SquareLFO -> LFOSquarePulse and separated the latter to its own header
26          file).
27        - Renamed type LFOSigned -> LFOTriangleSigned.
28        - Renamed type LFOUnsigned -> LFOTriangleUnsigned.
29        - Using now cubic interpolation as resampling algorithm by default; and
30          linear interpolation is deprecated now.
31        - Event:Init(): memset() entire Event::Param union to zero instead of trying
32          to do that for its individual members; the latter became error prone due
33          to the union's growing complexity meanwhile.
34        - EngineChannel: Overhaul of RPN/NRPN related methods: Added new
35          *Rpn*Parameter*() methods as replacement for previous *Rpn*Controller*()
36          methods and marked the old ones as deprecated; and likewise added new
37          *Nrpn*Parameter*() methods as replacement for previous *Nrpn*Controller*()
38          methods and marked those old ones deprecated as well.
39    
40      * Real-time instrument scripts:
41        - Added method ScriptVM::setExitResultEnabled() which allows to
42          explicitly enable the built-in exit() function to optionally accept
43          one function argument; the value of the passed exit() function
44          argument will then become available by calling
45          VMExecContext::exitResult() after script execution.
46        - 64 bit support for NKSP integer scripts variables (declare $foo).
47        - Variable names, function names and preprocessor condition names must start
48          with a regular character (a-z or A-Z); starting them with a digit or
49          underscore is not allowed.
50        - NKSP parser fix: equal comparison operator "=" and not equal comparison
51          operator "#" must only accept integer operands.
52        - NKSP language: Implemented support for standard units like Hertz, seconds,
53          Bel including support for metric unit prefixes; so one can now e.g.
54          conveniently use numbers in scripts like "5us" meaning "5 microseconds",
55          or e.g. "12kHz" meaning "12 kilo Hertz", or e.g. "-14mdB" meaning
56          "minus 14 Millidecibel", or e.g. "28c" meaning "28 cents" (for tuning).
57        - NKSP language: Introduced "final" operator "!" which is specifically
58          intended for synthesis parameter values to denote that the synthesis
59          parameter value is intended to be the "final" value for that synthesis
60          parameter that should explicitly be used by the engine and thus causing
61          the sampler engine to ignore all other modulation sources for the same
62          synthesis parameter (like e.g. LFO, EG); by simply prefixing a value,
63          variable or formula with this new "!" operator the expression is marked as
64          being "final".
65        - NKSP script editor API: Added support for detecting standard unit tokens
66          and their potential metric prefix token.
67        - NKSP language: Added support for NKSP real number literals and
68          arithmetic operations on them (e.g. "(3.9 + 2.9) / 12.3 - 42.0").
69        - NKSP language: Added support for NKSP real number (floating point) script
70          variables (declare ~foo).
71        - NKSP language: Added support for NKSP real number (floating point) array
72          script variables (declare ?foo[]).
73        - Built-in script function "message()" accepts now real number argument as
74          well.
75        - Added built-in script function "real_to_int()" and its short hand form
76          "int()" for casting from real number to integer in NKSP scripts.
77        - Added built-in script function "int_to_real()" and its short hand form
78          "real()" for casting from integer to real number in NKSP scripts.
79        - Allow built-in exit() function to potentially accept real number type
80          argument as well.
81        - Built-in script functions may have a different return type depending on
82          the arguments passed to the function.
83        - Built-in script function "abs()" optionally accepts and returns real
84          number.
85        - Built-in script functions "min()" and "max()" optionally accept real
86          number arguments and return real number as result in that case.
87        - NKSP VM API: Allow units and 'final'ness to be returned as result from
88          built-in functions (added methods VMFunction::returnUnitType() and
89          VMFunction::returnsFinal() for that purpose which must be implemented by
90          built-in function implementations).
91        - NKSP language: Allow metric unit prefixes of numeric scalar and array
92          variables to be changed freely at runtime (unlike unit types like Hz etc.
93          which are still sticky, parse-time features of variables which cannot be
94          changed at runtime for the intentional sake of determinism).
95        - NKSP language: 'final' values are prohibited for array variables for now
96          (attempt causes a parsers error).
97        - NKSP language: expressions with unit types (e.g. Hz) are prohibited for
98          conditions of runtime control structures like if(), while(), select()
99          (attempt causes a parser error).
100        - NKSP VM API: Allow built-in functions to perform their own, individual
101          parse time checks of arguments going to be passed to the function at
102          runtime (added method VMFunction::checkArgs() for that purpose).
103        - NKSP language: raise parser warning if only one operand of binary
104          operators (like logical 'or' comparison) contain a 'final' value (because
105          it would always yield in a 'final' result in such cases).
106        - NKSP language: Allow comparison (=, #, <, >, <=, >=) of values with
107          different metric unit prefixes, which will behave as expected (e.g.
108          result of expression '1000us < 2ms' is true).
109        - NKSP language: Allow adding values with different metric unit prefixes
110          (e.g. result of expression '100Hz + 5kHz' is '5100Hz').
111        - NKSP language: Allow subtracting values with different metric unit
112          prefixes (e.g. result of expression '1ms - 20us' is '980us').
113        - NKSP language: Allow multiplying with any metric unit prefixes
114          (e.g. result of expression '2k * 3ms' is '6s'), however multiplications
115          with unit types on both sides (e.g. '2s * 2s') is still prohibited since
116          we don't have any considerable practical use for a term like '4s^2'
117          (hence any attempt multiplying two unit types still causes parser error).
118        - NKSP language: Allow dividing by any metric unit prefixes and allow
119          division of same unit type on both sides (e.g. expression '8kHz / 1000Hz'
120          yields in unit free result '8'). So this is now a way to cast units away
121          e.g. for passing the result to other expressions, certain function calls
122          or variables which are not accepting any units (or that specific unit).
123        - NKSP language: integer arrays and real number arrays can now be converted
124          to strings (e.g. for dumping their content with message() calls for
125          script debugging purposes).
126        - NKSP language: expressions and variables with units are now correctly
127          casted to strings (e.g. with message() calls).
128        - NKSP language: comparing real numbers for equalness (e.g. '~foo = 3.1') or
129          unequalness (e.g. '~foo # 3.1') is now less strict and takes the expected
130          floating point tolerances into account.
131        - NKSP VM API: Added methods VMScalarNumberExpr::evalCastInt() and
132          VMScalarNumberExpr::evalCastReal().
133        - NKSP VM API: Added base class 'VMNumberArrayExpr' for classes
134          'VMIntArrayExpr' and 'VMRealArrayExpr'.
135        - NKSP VM API: replaced all unitPrefix() (parse time) methods by
136          unitFactor() (runtime) methods.
137        - Built-in function "exit()" supports now returning units and 'final'ness
138          for test cases.
139        - The following built-in functions support now units as well: "abs()",
140          "random()", "inc()", "dec()", "in_range()", "min()", "max()",
141          "real_to_int()", "int()", "int_to_real()" and "real()".
142        - Built-in functions "array_equal()", "search()" and "sort()" support now
143          real number arrays (correctly) as well.
144        - Added individual parse time checks of arguments to be passed to built-in
145          functions "random()", "inc()", "dec()", "in_range()", "min()", "max()",
146          "array_equal()" and "search()" specific for their individual purposes.
147        - NKSP VM refactoring: Renamed all methods, functions and classes matching
148          pattern *ScalarNumber* to simply *Number* (that is i.e. classes
149          VMScalarNumberExpr -> VMNumberExpr, ScalarNumberExpr -> NumberExpr,
150          ScalarNumberVariable -> NumberVariable, ScalarNumberBinaryOp ->
151          NumberBinaryOp, VMScalarNumberResultFunction -> VMNumberResultFunction,
152          method VMExpr::asScalarNumberExpr() -> VMExpr::asNumber(), function
153          isScalarNumber() -> isNumber()).
154        - NKSP VM API: Added 4 overridden methods to class VMNumberExpr:
155          evalCastInt(MetricPrefix_t), evalCastInt(MetricPrefix_t,MetricPrefix_t),
156          evalCastReal(MetricPrefix_t), evalCastReal(MetricPrefix_t,MetricPrefix_t)
157          as convenient methods for automatically converting values to expected
158          metric value basis.
159        - Built-in function "wait()" accepts now both integers and real numbers as
160          argument.
161        - NKSP VM API cleanup: Get rid of legacy method
162          VMFunction::argType(vmint iArg) which was already superseded by its new
163          replacement VMFunction::acceptsArgType(vmint iArg, ExprType_t type).
164        - NKSP parser: if wrong argument type was passed to a built-in function and
165          that built-in function accepts more than one data type for the argument,
166          then show all supported data types as parser error message.
167        - Built-in function "play_note()" accepts now real numbers and seconds as
168          unit type as well for its 3rd and 4th function arguments.
169        - The following built-in functions accept now real numbers as well for their
170          2nd function argument: "change_vol()", "change_tune()", "change_cutoff()",
171          "change_attack()", "change_decay()", "change_release()",
172          "change_sustain()", "change_cutoff_attack()", "change_cutoff_decay()",
173          "change_cutoff_sustain()", "change_cutoff_release()",
174          "change_amp_lfo_freq()", "change_cutoff_lfo_freq()",
175          "change_pitch_lfo_freq()", "change_vol_time()", "change_tune_time()",
176          "change_pan_time()", "fade_in()", "fade_out()", "change_play_pos()".
177        - Fixed built-in function "change_play_pos()" not having accepted metric
178          prefixes at all.
179        - Fixed the following built-in functions having misinterpreted values given
180          with unit type (for their 2nd argument) as if they were relative values
181          (that is as if they were passed without a unit type): "change_attack()",
182          "change_decay()", "change_release()", "change_cutoff_attack()",
183          "change_cutoff_decay()", "change_cutoff_release()".
184        - Fixed the following built-in functions having applied completely wrong
185          'final' values: "change_sustain()", "change_cutoff_sustain()" (since the
186          respective EGs being their modulation sink assume uint data type with
187          value range 0..1000 instead of 0.0..1.0.
188        - Added individual parse-time checks of function arguments for the following
189          built-in functions: "play_note()", "note_off()", "set_event_mark()",
190          "delete_event_mark()", "by_marks()", "change_cutoff()", "change_attack()",
191          "change_decay()", "change_release()", "change_cutoff_attack()",
192          "change_cutoff_decay()", "change_cutoff_release()",
193          "change_amp_lfo_freq()", "change_cutoff_lfo_freq()",
194          "change_pitch_lfo_freq()", "change_vol_time()", "change_tune_time()" and
195          "change_pan_time()".
196        - Don't abort function call if unit type was used and at the same time
197          'final' operator was omitted for the primary value argument of the
198          following built-in functions: "change_cutoff()", "change_attack()",
199          "change_decay()", "change_release()", "change_cutoff_attack()",
200          "change_cutoff_decay()", "change_cutoff_release()",
201          "change_amp_lfo_freq()", "change_cutoff_lfo_freq()",
202          "change_pitch_lfo_freq()", "change_vol_time()", "change_tune_time()",
203          "change_pan_time()", instead imply 'final'ness at runtime and raise an
204          appropriate parser warning at parse time.
205        - Added built-in real number functions "round()", "ceil()", "floor()",
206          "sqrt()", "log()", "log2()", "log10()", "exp()", "pow()", "sin()",
207          "cos()", "tan()", "asin()", "acos()", "atan()".
208        - Added built-in script real number constant "~NI_MATH_PI".
209        - Added built-in script real number constant "~NI_MATH_E".
210        - NKSP language: Allow unary '+' operator.
211        - Added built-in script functions "msb()" and "lsb()".
212    
213      * test cases:
214        - Fixed compiler errors in test cases.
215        - Updated README for how to compile & run test cases.
216        - Updated test case
217          MutexTest::testDoubleLockStillBlocksConcurrentThread() to latest
218          expected behaviour of the Mutex class implementation (recursive
219          mutex type).
220        - Added test cases for NKSP core language aspects and core built-in
221          functions.
222        - Fixed thread tests segfaulting on Linux.
223        - NKSP: Added real number test cases for built-in functions exit(),
224          int_to_real(), real(), real_to_int() and int(), as well as for the
225          plus, minus and negate language operators.
226        - Added massive amount of NKSP test cases for standard measuring units and
227          'final' operator usage cases.
228        - Added NKSP test cases for (floating point tolerance aware) real number
229          equalness / unequalness comparison.
230        - Added NKSP int array and real array tests for value assignment and
231          initialization of arrays.
232        - Added NKSP test cases for built-in functions "round()", "ceil()",
233          "floor()", "sqrt()", "log()", "log2()", "log10()", "exp()", "pow()",
234          "sin()", "cos()", "tan()", "asin()", "acos()", "atan()".
235        - Added NKSP test cases for unary '+' operator.
236    
237      * GigaStudio/Gigasampler format engine:
238        - LFOTriangleIntMath and LFOTriangleIntAbsMath: Fixed FlipPhase=true
239          behaviour for start_level_mid.
240        - Changed LFO start levels: LFO1 and LFO2 both to mid, LFO3 to max. start
241          level (see discussion "GigaStudio LFO compatibility" on mailing list
242          from 2019-09-26 for details).
243        - Changed default wave form for all 3 LFOs to sine (instead of triangle;
244          see discussion "GigaStudio LFO compatibility" on mailing list from
245          2019-09-26 for details).
246        - Format extension: Added support for different LFO wave forms (currently
247          either sine [default], triangle, saw or square).
248        - Format extension: Added support for LFO phase displacement (0°..360°).
249        - Format extension: Added support for flipping LFO polarity on LFO 3
250          (in the original gig format this was only available for LFO 1 and LFO 2).
251        - Format extension: Support for additional filter types:
252          lowpass 1/2/4/6-pole, highpass 1/2/4/6-pole, bandpass 2-pole,
253          bandreject 2-pole.
254    
255      * SFZ format engine:
256        - Fixed support for regions with loccN/hiccN conditions on more than one
257          MIDI controller.
258    
259      * Benchmarks:
260        - Fixed benchmarks/triang.cpp falsely having favoured "int math abs"
261          algorithm (since result of 2nd run was not accumulated).
262        - Added benchmark for saw wave (benchmarks/saw.cpp).
263        - Added benchmark for sine wave (benchmarks/sine.cpp).
264        - Added benchmark for square wave (benchmarks/square.cpp).
265        - Increased amount of benchmarks runs by factor 6 to achieve benchmark times
266          which are large enough on modern systems.
267    
268    Version 2.1.1 (27 Jul 2019)
269    
270    * Real-time instrument scripts:    * Real-time instrument scripts:
271      - Fixed behavior of built-in NKSP functions change_sustain(),      - Fixed behavior of built-in NKSP functions change_sustain(),
272        change_cutoff_attack(), change_cutoff_decay(), change_cutoff_sustain()        change_cutoff_attack(), change_cutoff_decay(), change_cutoff_sustain()
273        and change_cutoff_release().        and change_cutoff_release().
274    
275      * general changes:
276        - Only play release trigger samples on sustain pedal up if this behaviour
277          was explicitly requested by the instrument (otherwise only on note-off).
278        - Fixed compiler warnings.
279        - Fixed compilation error when cross-compiling to Mac.
280        - FX Sends: Provide more useful error messages on routing problems
281          (see bug #169).
282        - LSCP doc: Be more clear describing the two distinct approaches
283          of using external vs. internal effects (see bug #169).
284        - "optional" class: Fixed comparison operators.
285    
286      * Gigasampler/GigaStudio format engine:
287        - Format extension: If requested by instrument then don't play release
288          trigger sample on note-off events.
289    
290      * SFZ format engine:
291        - Fixed memory leak when releasing samples
292          (fixes bug #307, patch by Jacek Roszkowski)
293        - Fixed potential crash when a sample is shared by more than one region
294          (fixes bug #308, patch by Jacek Roszkowski).
295        - Opcode 'sample': Added support for built-in sample '*silence'
296          (fixes bug #310, patch by Jacek Roszkowski).
297    
298  Version 2.1.0 (25 Nov 2017)  Version 2.1.0 (25 Nov 2017)
299    
300    * SFZ format engine:    * SFZ format engine:

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