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revision 3557 by schoenebeck, Sun Aug 18 00:06:04 2019 UTC revision 3763 by schoenebeck, Sun Apr 5 20:15:57 2020 UTC
# Line 2  Version SVN trunk (?) Line 2  Version SVN trunk (?)
2    
3    * general changes:    * general changes:
4      - Fixed compiler error in Pool.h.      - Fixed compiler error in Pool.h.
5      - Require C++11 compiler support.      - Require C++14 compiler support.
6      - Autoconf: Added m4/ax_cxx_compile_stdcxx.m4 macro which is used      - Autoconf: Added m4/ax_cxx_compile_stdcxx.m4 macro which is used
7        for checking in configure for C++11 support (as mandatory        for checking in configure for C++14 support (as mandatory
8        requirement) and automatically adds compiler argument if required        requirement) and automatically adds compiler argument if required
9        (e.g. -std=C++11).        (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        - Added support for MIDI CC #38 (data entry LSB): this allows higher value
40          resolution for certain (e.g. hard coded) RPN and NRPN parameters.
41        - Implemented support for compressed RPN/NRPN message sequences (that is to
42          allow processing MIDI data entry messages without always having to be
43          preceded strictly by RPN/NRPN parameter selection messages on each value
44          change).
45        - Added support for MIDI CC #96 (data increment) and MIDI CC #97 (data
46          decrement).
47        - Added support for 'null function RPN/NRPN' (which is RPN/NRPN parameter
48          MSB=127 and LSB=127) and which is disabling subsequent data
49          entry/increment/decrement CC messages.
50        - Fixed crash when editing key groups (a.k.a. exclusive groups) with an
51          instrument editor.
52        - Fixed playing noise at the end of a disk stream under certain conditions.
53        - Fixed potential crash with high pitch at end of RAM playback.
54        - Added configure checks whether C++ compiler supports so called
55          'designated initializers'.
56        - Added global backtraceAsString() function for debugging purposes
57          (POSIX systems only, no Windows implementation yet).
58    
59    * Real-time instrument scripts:    * Real-time instrument scripts:
60      - Added method ScriptVM::setExitResultEnabled() which allows to      - Added method ScriptVM::setExitResultEnabled() which allows to
# Line 15  Version SVN trunk (?) Line 63  Version SVN trunk (?)
63        argument will then become available by calling        argument will then become available by calling
64        VMExecContext::exitResult() after script execution.        VMExecContext::exitResult() after script execution.
65      - 64 bit support for NKSP integer scripts variables (declare $foo).      - 64 bit support for NKSP integer scripts variables (declare $foo).
66        - Variable names, function names and preprocessor condition names must start
67          with a regular character (a-z or A-Z); starting them with a digit or
68          underscore is not allowed.
69        - NKSP parser fix: equal comparison operator "=" and not equal comparison
70          operator "#" must only accept integer operands.
71        - NKSP language: Implemented support for standard units like Hertz, seconds,
72          Bel including support for metric unit prefixes; so one can now e.g.
73          conveniently use numbers in scripts like "5us" meaning "5 microseconds",
74          or e.g. "12kHz" meaning "12 kilo Hertz", or e.g. "-14mdB" meaning
75          "minus 14 Millidecibel", or e.g. "28c" meaning "28 cents" (for tuning).
76        - NKSP language: Introduced "final" operator "!" which is specifically
77          intended for synthesis parameter values to denote that the synthesis
78          parameter value is intended to be the "final" value for that synthesis
79          parameter that should explicitly be used by the engine and thus causing
80          the sampler engine to ignore all other modulation sources for the same
81          synthesis parameter (like e.g. LFO, EG); by simply prefixing a value,
82          variable or formula with this new "!" operator the expression is marked as
83          being "final".
84        - NKSP script editor API: Added support for detecting standard unit tokens
85          and their potential metric prefix token.
86        - NKSP language: Added support for NKSP real number literals and
87          arithmetic operations on them (e.g. "(3.9 + 2.9) / 12.3 - 42.0").
88        - NKSP language: Added support for NKSP real number (floating point) script
89          variables (declare ~foo).
90        - NKSP language: Added support for NKSP real number (floating point) array
91          script variables (declare ?foo[]).
92        - Built-in script function "message()" accepts now real number argument as
93          well.
94        - Added built-in script function "real_to_int()" and its short hand form
95          "int()" for casting from real number to integer in NKSP scripts.
96        - Added built-in script function "int_to_real()" and its short hand form
97          "real()" for casting from integer to real number in NKSP scripts.
98        - Allow built-in exit() function to potentially accept real number type
99          argument as well.
100        - Built-in script functions may have a different return type depending on
101          the arguments passed to the function.
102        - Built-in script function "abs()" optionally accepts and returns real
103          number.
104        - Built-in script functions "min()" and "max()" optionally accept real
105          number arguments and return real number as result in that case.
106        - NKSP VM API: Allow units and 'final'ness to be returned as result from
107          built-in functions (added methods VMFunction::returnUnitType() and
108          VMFunction::returnsFinal() for that purpose which must be implemented by
109          built-in function implementations).
110        - NKSP language: Allow metric unit prefixes of numeric scalar and array
111          variables to be changed freely at runtime (unlike unit types like Hz etc.
112          which are still sticky, parse-time features of variables which cannot be
113          changed at runtime for the intentional sake of determinism).
114        - NKSP language: 'final' values are prohibited for array variables for now
115          (attempt causes a parsers error).
116        - NKSP language: expressions with unit types (e.g. Hz) are prohibited for
117          conditions of runtime control structures like if(), while(), select()
118          (attempt causes a parser error).
119        - NKSP VM API: Allow built-in functions to perform their own, individual
120          parse time checks of arguments going to be passed to the function at
121          runtime (added method VMFunction::checkArgs() for that purpose).
122        - NKSP language: raise parser warning if only one operand of binary
123          operators (like logical 'or' comparison) contain a 'final' value (because
124          it would always yield in a 'final' result in such cases).
125        - NKSP language: Allow comparison (=, #, <, >, <=, >=) of values with
126          different metric unit prefixes, which will behave as expected (e.g.
127          result of expression '1000us < 2ms' is true).
128        - NKSP language: Allow adding values with different metric unit prefixes
129          (e.g. result of expression '100Hz + 5kHz' is '5100Hz').
130        - NKSP language: Allow subtracting values with different metric unit
131          prefixes (e.g. result of expression '1ms - 20us' is '980us').
132        - NKSP language: Allow multiplying with any metric unit prefixes
133          (e.g. result of expression '2k * 3ms' is '6s'), however multiplications
134          with unit types on both sides (e.g. '2s * 2s') is still prohibited since
135          we don't have any considerable practical use for a term like '4s^2'
136          (hence any attempt multiplying two unit types still causes parser error).
137        - NKSP language: Allow dividing by any metric unit prefixes and allow
138          division of same unit type on both sides (e.g. expression '8kHz / 1000Hz'
139          yields in unit free result '8'). So this is now a way to cast units away
140          e.g. for passing the result to other expressions, certain function calls
141          or variables which are not accepting any units (or that specific unit).
142        - NKSP language: integer arrays and real number arrays can now be converted
143          to strings (e.g. for dumping their content with message() calls for
144          script debugging purposes).
145        - NKSP language: expressions and variables with units are now correctly
146          casted to strings (e.g. with message() calls).
147        - NKSP language: comparing real numbers for equalness (e.g. '~foo = 3.1') or
148          unequalness (e.g. '~foo # 3.1') is now less strict and takes the expected
149          floating point tolerances into account.
150        - NKSP VM API: Added methods VMScalarNumberExpr::evalCastInt() and
151          VMScalarNumberExpr::evalCastReal().
152        - NKSP VM API: Added base class 'VMNumberArrayExpr' for classes
153          'VMIntArrayExpr' and 'VMRealArrayExpr'.
154        - NKSP VM API: replaced all unitPrefix() (parse time) methods by
155          unitFactor() (runtime) methods.
156        - Built-in function "exit()" supports now returning units and 'final'ness
157          for test cases.
158        - The following built-in functions support now units as well: "abs()",
159          "random()", "inc()", "dec()", "in_range()", "min()", "max()",
160          "real_to_int()", "int()", "int_to_real()" and "real()".
161        - Built-in functions "array_equal()", "search()" and "sort()" support now
162          real number arrays (correctly) as well.
163        - Added individual parse time checks of arguments to be passed to built-in
164          functions "random()", "inc()", "dec()", "in_range()", "min()", "max()",
165          "array_equal()" and "search()" specific for their individual purposes.
166        - NKSP VM refactoring: Renamed all methods, functions and classes matching
167          pattern *ScalarNumber* to simply *Number* (that is i.e. classes
168          VMScalarNumberExpr -> VMNumberExpr, ScalarNumberExpr -> NumberExpr,
169          ScalarNumberVariable -> NumberVariable, ScalarNumberBinaryOp ->
170          NumberBinaryOp, VMScalarNumberResultFunction -> VMNumberResultFunction,
171          method VMExpr::asScalarNumberExpr() -> VMExpr::asNumber(), function
172          isScalarNumber() -> isNumber()).
173        - NKSP VM API: Added 4 overridden methods to class VMNumberExpr:
174          evalCastInt(MetricPrefix_t), evalCastInt(MetricPrefix_t,MetricPrefix_t),
175          evalCastReal(MetricPrefix_t), evalCastReal(MetricPrefix_t,MetricPrefix_t)
176          as convenient methods for automatically converting values to expected
177          metric value basis.
178        - Built-in function "wait()" accepts now both integers and real numbers as
179          argument.
180        - NKSP VM API cleanup: Get rid of legacy method
181          VMFunction::argType(vmint iArg) which was already superseded by its new
182          replacement VMFunction::acceptsArgType(vmint iArg, ExprType_t type).
183        - NKSP parser: if wrong argument type was passed to a built-in function and
184          that built-in function accepts more than one data type for the argument,
185          then show all supported data types as parser error message.
186        - Built-in function "play_note()" accepts now real numbers and seconds as
187          unit type as well for its 3rd and 4th function arguments.
188        - The following built-in functions accept now real numbers as well for their
189          2nd function argument: "change_vol()", "change_tune()", "change_cutoff()",
190          "change_attack()", "change_decay()", "change_release()",
191          "change_sustain()", "change_cutoff_attack()", "change_cutoff_decay()",
192          "change_cutoff_sustain()", "change_cutoff_release()",
193          "change_amp_lfo_freq()", "change_cutoff_lfo_freq()",
194          "change_pitch_lfo_freq()", "change_vol_time()", "change_tune_time()",
195          "change_pan_time()", "fade_in()", "fade_out()", "change_play_pos()".
196        - Fixed built-in function "change_play_pos()" not having accepted metric
197          prefixes at all.
198        - Fixed the following built-in functions having misinterpreted values given
199          with unit type (for their 2nd argument) as if they were relative values
200          (that is as if they were passed without a unit type): "change_attack()",
201          "change_decay()", "change_release()", "change_cutoff_attack()",
202          "change_cutoff_decay()", "change_cutoff_release()".
203        - Fixed the following built-in functions having applied completely wrong
204          'final' values: "change_sustain()", "change_cutoff_sustain()" (since the
205          respective EGs being their modulation sink assume uint data type with
206          value range 0..1000 instead of 0.0..1.0.
207        - Added individual parse-time checks of function arguments for the following
208          built-in functions: "play_note()", "note_off()", "set_event_mark()",
209          "delete_event_mark()", "by_marks()", "change_cutoff()", "change_attack()",
210          "change_decay()", "change_release()", "change_cutoff_attack()",
211          "change_cutoff_decay()", "change_cutoff_release()",
212          "change_amp_lfo_freq()", "change_cutoff_lfo_freq()",
213          "change_pitch_lfo_freq()", "change_vol_time()", "change_tune_time()" and
214          "change_pan_time()".
215        - Don't abort function call if unit type was used and at the same time
216          'final' operator was omitted for the primary value argument of the
217          following built-in functions: "change_cutoff()", "change_attack()",
218          "change_decay()", "change_release()", "change_cutoff_attack()",
219          "change_cutoff_decay()", "change_cutoff_release()",
220          "change_amp_lfo_freq()", "change_cutoff_lfo_freq()",
221          "change_pitch_lfo_freq()", "change_vol_time()", "change_tune_time()",
222          "change_pan_time()", instead imply 'final'ness at runtime and raise an
223          appropriate parser warning at parse time.
224        - Added built-in real number functions "round()", "ceil()", "floor()",
225          "sqrt()", "log()", "log2()", "log10()", "exp()", "pow()", "sin()",
226          "cos()", "tan()", "asin()", "acos()", "atan()".
227        - Added built-in script real number constant "~NI_MATH_PI".
228        - Added built-in script real number constant "~NI_MATH_E".
229        - NKSP language: Allow unary '+' operator.
230        - Added built-in script functions "msb()" and "lsb()".
231        - NKSP language: Added support for RPN event handler
232          ("on rpn ... end on" in instrument scripts).
233        - NKSP language: Added support for NRPN event handler
234          ("on nrpn ... end on" in instrument scripts).
235        - Added built-in read-only variables "$RPN_ADDRESS" and "$RPN_VALUE" which
236          may be read from the new RPN/NRPN script handlers to get the (N)RPN
237          parameter that had been changed and its new value.
238        - Added built-in const variables "$NI_CB_TYPE_RPN" and "$NI_CB_TYPE_NRPN"
239          which are identifying the new (N)RPN handlers as such at script runtime.
240        - Implemented built-in script function "set_rpn()".
241        - Implemented built-in script function "set_nrpn()".
242        - Fix: built-in functions returning an array type were broken and caused a
243          crash when the built-in function's (supposed to be array) result value was
244          used by the script VM.
245        - Removed upper value constraint for 2nd argument of built-in functions
246          "change_amp_lfo_freq()", "change_cutoff_lfo_freq()",
247          "change_pitch_lfo_freq()","change_reso()", "change_cutoff()",
248          "change_amp_lfo_depth()", "change_cutoff_lfo_depth()" and
249          "change_pitch_lfo_depth()", to allow e.g. passing value 2000000 to double
250          the LFO frequency / resonance / cutoff frequency.
251        - Reduced code involved for parsing NKSP variable declarations by using 2
252          generalized grammar rules with optional components (i.e. optional value
253          assignment and optional variable qualifiers) instead of previous linear
254          combinations of grammar rules, which also fixes some edge case.
255        - NKSP language parser: track code block locations also by a) raw byte
256          position in NKSP source code string and b) length of that code block in
257          bytes (along to the already existing code block tracking by line/column);
258          and added appropriate new members to public C++ API classes like
259          'firstByte' and 'lengthBytes' to class VMSourceToken and struct CodeBlock.
260        - NKSP language: Added support for 'patch' variable qualifier (capture their
261          locations and allow replacement of their assignment expression via VM C++
262          API).
263        - Fixed incorrect EG times if standard measuring unit was passed to built-in
264          functions "change_attack()", "change_decay()" or "change_release()".
265        - Fixed intermediate function result values never having reflected any
266          standard measuring unit type.
267        - Fixed re-entrant issue with function calls which caused wrong result
268          values if the same function was called multiple times in a term
269          (specifically if metric prefixes were used).
270    
271    * test cases:    * test cases:
272      - Fixed compiler errors in test cases.      - Fixed compiler errors in test cases.
# Line 26  Version SVN trunk (?) Line 278  Version SVN trunk (?)
278      - Added test cases for NKSP core language aspects and core built-in      - Added test cases for NKSP core language aspects and core built-in
279        functions.        functions.
280      - Fixed thread tests segfaulting on Linux.      - Fixed thread tests segfaulting on Linux.
281        - NKSP: Added real number test cases for built-in functions exit(),
282          int_to_real(), real(), real_to_int() and int(), as well as for the
283          plus, minus and negate language operators.
284        - Added massive amount of NKSP test cases for standard measuring units and
285          'final' operator usage cases.
286        - Added NKSP test cases for (floating point tolerance aware) real number
287          equalness / unequalness comparison.
288        - Added NKSP int array and real array tests for value assignment and
289          initialization of arrays.
290        - Added NKSP test cases for built-in functions "round()", "ceil()",
291          "floor()", "sqrt()", "log()", "log2()", "log10()", "exp()", "pow()",
292          "sin()", "cos()", "tan()", "asin()", "acos()", "atan()".
293        - Added NKSP test cases for unary '+' operator.
294        - Added NKSP test cases for core built-in variables.
295        - Added thorough NKSP test cases for variable declarations.
296    
297      * GigaStudio/Gigasampler format engine:
298        - LFOTriangleIntMath and LFOTriangleIntAbsMath: Fixed FlipPhase=true
299          behaviour for start_level_mid.
300        - Changed LFO start levels: LFO1 and LFO2 both to mid, LFO3 to max. start
301          level (see discussion "GigaStudio LFO compatibility" on mailing list
302          from 2019-09-26 for details).
303        - Changed default wave form for all 3 LFOs to sine (instead of triangle;
304          see discussion "GigaStudio LFO compatibility" on mailing list from
305          2019-09-26 for details).
306        - Format extension: Added support for different LFO wave forms (currently
307          either sine [default], triangle, saw or square).
308        - Format extension: Added support for LFO phase displacement (0°..360°).
309        - Format extension: Added support for flipping LFO polarity on LFO 3
310          (in the original gig format this was only available for LFO 1 and LFO 2).
311        - Format extension: Support for additional filter types:
312          lowpass 1/2/4/6-pole, highpass 1/2/4/6-pole, bandpass 2-pole,
313          bandreject 2-pole.
314        - Fixd potential crash with polynomial interpolator and max. pitch.
315        - If minimum cutoff is defined, remap cutoff controller CC values to really
316          span the entire possible cutoff range (and avoiding a dead controller
317          zone).
318        - Implemented support for loading instrument scripts with 'patch' variables
319          (by patching these script variables with potentially overridden ones by
320          gig Instrument).
321    
322      * SFZ format engine:
323        - Fixed support for regions with loccN/hiccN conditions on more than one
324          MIDI controller.
325    
326      * Benchmarks:
327        - Fixed benchmarks/triang.cpp falsely having favoured "int math abs"
328          algorithm (since result of 2nd run was not accumulated).
329        - Added benchmark for saw wave (benchmarks/saw.cpp).
330        - Added benchmark for sine wave (benchmarks/sine.cpp).
331        - Added benchmark for square wave (benchmarks/square.cpp).
332        - Increased amount of benchmarks runs by factor 6 to achieve benchmark times
333          which are large enough on modern systems.
334    
335  Version 2.1.1 (27 Jul 2019)  Version 2.1.1 (27 Jul 2019)
336    
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