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revision 2509 by schoenebeck, Sat Jan 18 18:10:49 2014 UTC revision 3724 by schoenebeck, Thu Jan 23 18:15:37 2020 UTC
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1  Version CVS HEAD (?)  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        - 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    
53      * Real-time instrument scripts:
54        - Added method ScriptVM::setExitResultEnabled() which allows to
55          explicitly enable the built-in exit() function to optionally accept
56          one function argument; the value of the passed exit() function
57          argument will then become available by calling
58          VMExecContext::exitResult() after script execution.
59        - 64 bit support for NKSP integer scripts variables (declare $foo).
60        - Variable names, function names and preprocessor condition names must start
61          with a regular character (a-z or A-Z); starting them with a digit or
62          underscore is not allowed.
63        - NKSP parser fix: equal comparison operator "=" and not equal comparison
64          operator "#" must only accept integer operands.
65        - NKSP language: Implemented support for standard units like Hertz, seconds,
66          Bel including support for metric unit prefixes; so one can now e.g.
67          conveniently use numbers in scripts like "5us" meaning "5 microseconds",
68          or e.g. "12kHz" meaning "12 kilo Hertz", or e.g. "-14mdB" meaning
69          "minus 14 Millidecibel", or e.g. "28c" meaning "28 cents" (for tuning).
70        - NKSP language: Introduced "final" operator "!" which is specifically
71          intended for synthesis parameter values to denote that the synthesis
72          parameter value is intended to be the "final" value for that synthesis
73          parameter that should explicitly be used by the engine and thus causing
74          the sampler engine to ignore all other modulation sources for the same
75          synthesis parameter (like e.g. LFO, EG); by simply prefixing a value,
76          variable or formula with this new "!" operator the expression is marked as
77          being "final".
78        - NKSP script editor API: Added support for detecting standard unit tokens
79          and their potential metric prefix token.
80        - NKSP language: Added support for NKSP real number literals and
81          arithmetic operations on them (e.g. "(3.9 + 2.9) / 12.3 - 42.0").
82        - NKSP language: Added support for NKSP real number (floating point) script
83          variables (declare ~foo).
84        - NKSP language: Added support for NKSP real number (floating point) array
85          script variables (declare ?foo[]).
86        - Built-in script function "message()" accepts now real number argument as
87          well.
88        - Added built-in script function "real_to_int()" and its short hand form
89          "int()" for casting from real number to integer in NKSP scripts.
90        - Added built-in script function "int_to_real()" and its short hand form
91          "real()" for casting from integer to real number in NKSP scripts.
92        - Allow built-in exit() function to potentially accept real number type
93          argument as well.
94        - Built-in script functions may have a different return type depending on
95          the arguments passed to the function.
96        - Built-in script function "abs()" optionally accepts and returns real
97          number.
98        - Built-in script functions "min()" and "max()" optionally accept real
99          number arguments and return real number as result in that case.
100        - NKSP VM API: Allow units and 'final'ness to be returned as result from
101          built-in functions (added methods VMFunction::returnUnitType() and
102          VMFunction::returnsFinal() for that purpose which must be implemented by
103          built-in function implementations).
104        - NKSP language: Allow metric unit prefixes of numeric scalar and array
105          variables to be changed freely at runtime (unlike unit types like Hz etc.
106          which are still sticky, parse-time features of variables which cannot be
107          changed at runtime for the intentional sake of determinism).
108        - NKSP language: 'final' values are prohibited for array variables for now
109          (attempt causes a parsers error).
110        - NKSP language: expressions with unit types (e.g. Hz) are prohibited for
111          conditions of runtime control structures like if(), while(), select()
112          (attempt causes a parser error).
113        - NKSP VM API: Allow built-in functions to perform their own, individual
114          parse time checks of arguments going to be passed to the function at
115          runtime (added method VMFunction::checkArgs() for that purpose).
116        - NKSP language: raise parser warning if only one operand of binary
117          operators (like logical 'or' comparison) contain a 'final' value (because
118          it would always yield in a 'final' result in such cases).
119        - NKSP language: Allow comparison (=, #, <, >, <=, >=) of values with
120          different metric unit prefixes, which will behave as expected (e.g.
121          result of expression '1000us < 2ms' is true).
122        - NKSP language: Allow adding values with different metric unit prefixes
123          (e.g. result of expression '100Hz + 5kHz' is '5100Hz').
124        - NKSP language: Allow subtracting values with different metric unit
125          prefixes (e.g. result of expression '1ms - 20us' is '980us').
126        - NKSP language: Allow multiplying with any metric unit prefixes
127          (e.g. result of expression '2k * 3ms' is '6s'), however multiplications
128          with unit types on both sides (e.g. '2s * 2s') is still prohibited since
129          we don't have any considerable practical use for a term like '4s^2'
130          (hence any attempt multiplying two unit types still causes parser error).
131        - NKSP language: Allow dividing by any metric unit prefixes and allow
132          division of same unit type on both sides (e.g. expression '8kHz / 1000Hz'
133          yields in unit free result '8'). So this is now a way to cast units away
134          e.g. for passing the result to other expressions, certain function calls
135          or variables which are not accepting any units (or that specific unit).
136        - NKSP language: integer arrays and real number arrays can now be converted
137          to strings (e.g. for dumping their content with message() calls for
138          script debugging purposes).
139        - NKSP language: expressions and variables with units are now correctly
140          casted to strings (e.g. with message() calls).
141        - NKSP language: comparing real numbers for equalness (e.g. '~foo = 3.1') or
142          unequalness (e.g. '~foo # 3.1') is now less strict and takes the expected
143          floating point tolerances into account.
144        - NKSP VM API: Added methods VMScalarNumberExpr::evalCastInt() and
145          VMScalarNumberExpr::evalCastReal().
146        - NKSP VM API: Added base class 'VMNumberArrayExpr' for classes
147          'VMIntArrayExpr' and 'VMRealArrayExpr'.
148        - NKSP VM API: replaced all unitPrefix() (parse time) methods by
149          unitFactor() (runtime) methods.
150        - Built-in function "exit()" supports now returning units and 'final'ness
151          for test cases.
152        - The following built-in functions support now units as well: "abs()",
153          "random()", "inc()", "dec()", "in_range()", "min()", "max()",
154          "real_to_int()", "int()", "int_to_real()" and "real()".
155        - Built-in functions "array_equal()", "search()" and "sort()" support now
156          real number arrays (correctly) as well.
157        - Added individual parse time checks of arguments to be passed to built-in
158          functions "random()", "inc()", "dec()", "in_range()", "min()", "max()",
159          "array_equal()" and "search()" specific for their individual purposes.
160        - NKSP VM refactoring: Renamed all methods, functions and classes matching
161          pattern *ScalarNumber* to simply *Number* (that is i.e. classes
162          VMScalarNumberExpr -> VMNumberExpr, ScalarNumberExpr -> NumberExpr,
163          ScalarNumberVariable -> NumberVariable, ScalarNumberBinaryOp ->
164          NumberBinaryOp, VMScalarNumberResultFunction -> VMNumberResultFunction,
165          method VMExpr::asScalarNumberExpr() -> VMExpr::asNumber(), function
166          isScalarNumber() -> isNumber()).
167        - NKSP VM API: Added 4 overridden methods to class VMNumberExpr:
168          evalCastInt(MetricPrefix_t), evalCastInt(MetricPrefix_t,MetricPrefix_t),
169          evalCastReal(MetricPrefix_t), evalCastReal(MetricPrefix_t,MetricPrefix_t)
170          as convenient methods for automatically converting values to expected
171          metric value basis.
172        - Built-in function "wait()" accepts now both integers and real numbers as
173          argument.
174        - NKSP VM API cleanup: Get rid of legacy method
175          VMFunction::argType(vmint iArg) which was already superseded by its new
176          replacement VMFunction::acceptsArgType(vmint iArg, ExprType_t type).
177        - NKSP parser: if wrong argument type was passed to a built-in function and
178          that built-in function accepts more than one data type for the argument,
179          then show all supported data types as parser error message.
180        - Built-in function "play_note()" accepts now real numbers and seconds as
181          unit type as well for its 3rd and 4th function arguments.
182        - The following built-in functions accept now real numbers as well for their
183          2nd function argument: "change_vol()", "change_tune()", "change_cutoff()",
184          "change_attack()", "change_decay()", "change_release()",
185          "change_sustain()", "change_cutoff_attack()", "change_cutoff_decay()",
186          "change_cutoff_sustain()", "change_cutoff_release()",
187          "change_amp_lfo_freq()", "change_cutoff_lfo_freq()",
188          "change_pitch_lfo_freq()", "change_vol_time()", "change_tune_time()",
189          "change_pan_time()", "fade_in()", "fade_out()", "change_play_pos()".
190        - Fixed built-in function "change_play_pos()" not having accepted metric
191          prefixes at all.
192        - Fixed the following built-in functions having misinterpreted values given
193          with unit type (for their 2nd argument) as if they were relative values
194          (that is as if they were passed without a unit type): "change_attack()",
195          "change_decay()", "change_release()", "change_cutoff_attack()",
196          "change_cutoff_decay()", "change_cutoff_release()".
197        - Fixed the following built-in functions having applied completely wrong
198          'final' values: "change_sustain()", "change_cutoff_sustain()" (since the
199          respective EGs being their modulation sink assume uint data type with
200          value range 0..1000 instead of 0.0..1.0.
201        - Added individual parse-time checks of function arguments for the following
202          built-in functions: "play_note()", "note_off()", "set_event_mark()",
203          "delete_event_mark()", "by_marks()", "change_cutoff()", "change_attack()",
204          "change_decay()", "change_release()", "change_cutoff_attack()",
205          "change_cutoff_decay()", "change_cutoff_release()",
206          "change_amp_lfo_freq()", "change_cutoff_lfo_freq()",
207          "change_pitch_lfo_freq()", "change_vol_time()", "change_tune_time()" and
208          "change_pan_time()".
209        - Don't abort function call if unit type was used and at the same time
210          'final' operator was omitted for the primary value argument of the
211          following built-in functions: "change_cutoff()", "change_attack()",
212          "change_decay()", "change_release()", "change_cutoff_attack()",
213          "change_cutoff_decay()", "change_cutoff_release()",
214          "change_amp_lfo_freq()", "change_cutoff_lfo_freq()",
215          "change_pitch_lfo_freq()", "change_vol_time()", "change_tune_time()",
216          "change_pan_time()", instead imply 'final'ness at runtime and raise an
217          appropriate parser warning at parse time.
218        - Added built-in real number functions "round()", "ceil()", "floor()",
219          "sqrt()", "log()", "log2()", "log10()", "exp()", "pow()", "sin()",
220          "cos()", "tan()", "asin()", "acos()", "atan()".
221        - Added built-in script real number constant "~NI_MATH_PI".
222        - Added built-in script real number constant "~NI_MATH_E".
223        - NKSP language: Allow unary '+' operator.
224        - Added built-in script functions "msb()" and "lsb()".
225        - NKSP language: Added support for RPN event handler
226          ("on rpn ... end on" in instrument scripts).
227        - NKSP language: Added support for NRPN event handler
228          ("on nrpn ... end on" in instrument scripts).
229        - Added built-in read-only variables "$RPN_ADDRESS" and "$RPN_VALUE" which
230          may be read from the new RPN/NRPN script handlers to get the (N)RPN
231          parameter that had been changed and its new value.
232        - Added built-in const variables "$NI_CB_TYPE_RPN" and "$NI_CB_TYPE_NRPN"
233          which are identifying the new (N)RPN handlers as such at script runtime.
234        - Implemented built-in script function "set_rpn()".
235        - Implemented built-in script function "set_nrpn()".
236        - Fix: built-in functions returning an array type were broken and caused a
237          crash when the built-in function's (supposed to be array) result value was
238          used by the script VM.
239        - Removed upper value constraint for 2nd argument of built-in functions
240          "change_amp_lfo_freq()", "change_cutoff_lfo_freq()",
241          "change_pitch_lfo_freq()","change_reso()", "change_cutoff()",
242          "change_amp_lfo_depth()", "change_cutoff_lfo_depth()" and
243          "change_pitch_lfo_depth()", to allow e.g. passing value 2000000 to double
244          the LFO frequency / resonance / cutoff frequency.
245    
246      * test cases:
247        - Fixed compiler errors in test cases.
248        - Updated README for how to compile & run test cases.
249        - Updated test case
250          MutexTest::testDoubleLockStillBlocksConcurrentThread() to latest
251          expected behaviour of the Mutex class implementation (recursive
252          mutex type).
253        - Added test cases for NKSP core language aspects and core built-in
254          functions.
255        - Fixed thread tests segfaulting on Linux.
256        - NKSP: Added real number test cases for built-in functions exit(),
257          int_to_real(), real(), real_to_int() and int(), as well as for the
258          plus, minus and negate language operators.
259        - Added massive amount of NKSP test cases for standard measuring units and
260          'final' operator usage cases.
261        - Added NKSP test cases for (floating point tolerance aware) real number
262          equalness / unequalness comparison.
263        - Added NKSP int array and real array tests for value assignment and
264          initialization of arrays.
265        - Added NKSP test cases for built-in functions "round()", "ceil()",
266          "floor()", "sqrt()", "log()", "log2()", "log10()", "exp()", "pow()",
267          "sin()", "cos()", "tan()", "asin()", "acos()", "atan()".
268        - Added NKSP test cases for unary '+' operator.
269        - Added NKSP test cases for core built-in variables.
270    
271      * GigaStudio/Gigasampler format engine:
272        - LFOTriangleIntMath and LFOTriangleIntAbsMath: Fixed FlipPhase=true
273          behaviour for start_level_mid.
274        - Changed LFO start levels: LFO1 and LFO2 both to mid, LFO3 to max. start
275          level (see discussion "GigaStudio LFO compatibility" on mailing list
276          from 2019-09-26 for details).
277        - Changed default wave form for all 3 LFOs to sine (instead of triangle;
278          see discussion "GigaStudio LFO compatibility" on mailing list from
279          2019-09-26 for details).
280        - Format extension: Added support for different LFO wave forms (currently
281          either sine [default], triangle, saw or square).
282        - Format extension: Added support for LFO phase displacement (0°..360°).
283        - Format extension: Added support for flipping LFO polarity on LFO 3
284          (in the original gig format this was only available for LFO 1 and LFO 2).
285        - Format extension: Support for additional filter types:
286          lowpass 1/2/4/6-pole, highpass 1/2/4/6-pole, bandpass 2-pole,
287          bandreject 2-pole.
288        - Fixd potential crash with polynomial interpolator and max. pitch.
289        - If minimum cutoff is defined, remap cutoff controller CC values to really
290          span the entire possible cutoff range (and avoiding a dead controller
291          zone).
292    
293      * SFZ format engine:
294        - Fixed support for regions with loccN/hiccN conditions on more than one
295          MIDI controller.
296    
297      * Benchmarks:
298        - Fixed benchmarks/triang.cpp falsely having favoured "int math abs"
299          algorithm (since result of 2nd run was not accumulated).
300        - Added benchmark for saw wave (benchmarks/saw.cpp).
301        - Added benchmark for sine wave (benchmarks/sine.cpp).
302        - Added benchmark for square wave (benchmarks/square.cpp).
303        - Increased amount of benchmarks runs by factor 6 to achieve benchmark times
304          which are large enough on modern systems.
305    
306    Version 2.1.1 (27 Jul 2019)
307    
308      * Real-time instrument scripts:
309        - Fixed behavior of built-in NKSP functions change_sustain(),
310          change_cutoff_attack(), change_cutoff_decay(), change_cutoff_sustain()
311          and change_cutoff_release().
312    
313      * general changes:
314        - Only play release trigger samples on sustain pedal up if this behaviour
315          was explicitly requested by the instrument (otherwise only on note-off).
316        - Fixed compiler warnings.
317        - Fixed compilation error when cross-compiling to Mac.
318        - FX Sends: Provide more useful error messages on routing problems
319          (see bug #169).
320        - LSCP doc: Be more clear describing the two distinct approaches
321          of using external vs. internal effects (see bug #169).
322        - "optional" class: Fixed comparison operators.
323    
324      * Gigasampler/GigaStudio format engine:
325        - Format extension: If requested by instrument then don't play release
326          trigger sample on note-off events.
327    
328      * SFZ format engine:
329        - Fixed memory leak when releasing samples
330          (fixes bug #307, patch by Jacek Roszkowski)
331        - Fixed potential crash when a sample is shared by more than one region
332          (fixes bug #308, patch by Jacek Roszkowski).
333        - Opcode 'sample': Added support for built-in sample '*silence'
334          (fixes bug #310, patch by Jacek Roszkowski).
335    
336    Version 2.1.0 (25 Nov 2017)
337    
338      * SFZ format engine:
339        - added support for <global>, <master> and #define (patch by Alby M)
340        - Removed code duplication in SFZ file loading code.
341        - Added support for sfz extension opcode 'script' which may be used to
342          load real-time instrument script file (NKSP script language).
343        - Implemented opcode set_ccN (initial patch by Giovanni Senatore).
344        - Fixed unintended volume fade-in of voices under certain conditions.
345        - sfz parser: allow missing space between header and opcode
346    
347      * Gigasampler/GigaStudio format engine:
348        - Fixed clicks and pumping noise with Lowpass Turbo filter on very low
349          cutoff settings.
350        - Got rid of resembling an ancient GSt misbehavior which did not pitch at
351          all if an up-pitch of more than 40 semi tones was requested (I don't
352          think there is any stock gig sound that requires this behavior to
353          resemble its original sound).
354        - Added support for controlling whether the individual EGADSR stages may
355          be aborted (as LinuxSampler extension to the original GigaStudio 4
356          format).
357    
358      * general changes:
359        - fixed printf type errors (mostly in debug messages)
360        - use unique_ptr instead of auto_ptr when building with C++11
361        - Added RTAVLTree class which is a real-time safe ordered multi-map, thus
362          allowing to sort data efficiently in real-time safe manner.
363        - RTList class: added methods for moving/inserting elements to arbitrary
364          position within a list.
365        - RTList class: added method fromPtr() for creating an Iterator object from
366          a raw element pointer.
367        - Attempt to partly fix resetting engine channels vs. resetting engine, an
368          overall cleanup of the Reset*(), ConnectAudioDevice(),
369          DisconnectAudioDevice() API methods would still be desirable though,
370          because the current situation is still inconsistent and error prone.
371        - Active voices are now internally grouped to "Note" objects, instead of
372          being directly assigned to a keyboard key. This allows more fine graded
373          processing of voices, which is i.e. required for certain instrument
374          script features.
375        - Fix: Release trigger voices were not spawned on sustain pedal up
376          (CC #64) events.
377        - Fix: Release trigger voices can now also distinguish correctly between
378          note-off and sustain pedal up events.
379        - All engines: Increased ramp speed of volume smoother and pan smoother
380          (while slow rate of crossfade smoother is preserved) to allow quick
381          volume and pan changes by instrument scripts for instance.
382        - gig/sf2/sfz: Fixed aftertouch channel pressure events being processed
383          properly and thus were ignored for certain uses.
384        - Added new C++ API method
385          VirtualMidiDevice::SendChannelPressureToSampler().
386        - windows, 32-bit: fixed potential crashes by making sure the stack in
387          sub threads is 16-byte aligned
388        - fixed numerous compiler warnings
389        - Fixed invalid (note-on) event ID being assigned to new Note objects.
390        - Revised fundamental C++ classes "Thread", "Mutex" and "Condition" which
391          fixes potential undefined behavior.
392        - Fixed Note object leak when triggering notes on keys which did not
393          have a valid sample mapped (fixes bug #252).
394        - Fixed compilation errors when compiling with CONFIG_DEVMODE enabled.
395        - linuxsampler binary fix: option --create-instruments-db ignored
396          subsequent optional argument due to glibc's implementation oddity
397          which expects a "=" sign, but no space between them.
398    
399      * packaging changes:
400        - removed unnecessary dependency to libuuid
401          (originated by libgig's usage of it)
402        - Automake: set environment variable GCC_COLORS=auto to allow GCC to
403          auto detect whether it (sh/c)ould output its messages in color.
404        - Debian: Fixed packaging error about invalid "Source-Version"
405          substitution variable.
406        - Debian: Raised Debian compatibility level to Debian 9 "Stretch".
407        - Debian: Added build dependency to libsqlite3-dev for building
408          linuxsampler with instruments DB support.
409    
410      * Real-time instrument scripts:
411        - Implemented scheduler for delayed MIDI events and for suspended scripts.
412        - Built-in script function "wait()": implemented support for function's
413          "duration-us" argument, thus scripts using this function are now
414          correctly resumed after the requested amount of microseconds.
415        - Built-in script function "play_note()": implemented support for
416          function's "duration-us" argument, thus notes triggered with this
417          argument are now correctly released after the requested amount of
418          microseconds.
419        - Fix: script events were not cleared when engine channel was reset,
420          potentially causing undefined behavior.
421        - Fixed crash which happened when trying to reference an undeclared
422          variable.
423        - Built-in script function "play_note()": Added support for passing
424          special value -1 for "duration-us" argument, which will cause the
425          triggered note to be released once the original note was released.
426        - Instrument script classes now exported with the liblinuxsampler C++ API.
427        - Added new API method ScriptVM::syntaxHighlighting() which provides
428          a convenient syntax highlighting backend for external instrument
429          script editor applications.
430        - Added new C++ API class "ScriptVMFactory".
431        - Extended parser issues to provide not only first line and first
432          column, but also last line and last column of issue (thus marking
433          the precise span of the issue within the source code).
434        - Reload script automatically after being modified by an instrument
435          editor.
436        - NKSP language grammar correction: allow empty event handler bodies
437          like "on note end on".
438        - Implemented built-in script function "change_vol()".
439        - Implemented built-in script function "change_tune()".
440        - Implemented built-in script function "change_pan()".
441        - Implemented built-in script function "change_cutoff()".
442        - Implemented built-in script function "change_reso()".
443        - Implemented built-in script function "event_status()".
444        - Added built-in script constants "$EVENT_STATUS_INACTIVE" and
445          "$EVENT_STATUS_NOTE_QUEUE" both for being used as flags for
446          "event_status()" function.
447        - NKSP language: Added support for bitwise operators ".or.", ".and."
448          and ".not.".
449        - NKSP language scanner: Fixed IDs matching to require at least one
450          character (i.e. when matching function names or variable names).
451        - NKSP language scanner: disabled unusued rules.
452        - Fixed behavior of play_note() and note_off() functions which must
453          be distinguished engine internally from "real" MIDI note on/off
454          events in order to avoid misbehaviors like hanging notes.
455        - Implemented built-in script variable "$KSP_TIMER".
456        - Implemented built-in script variable "$NKSP_REAL_TIMER".
457        - Implemented built-in script variable "$NKSP_PERF_TIMER".
458        - Implemented built-in script variable "$ENGINE_UPTIME".
459        - Implemented built-in script function "inc()".
460        - Implemented built-in script function "dec()".
461        - NKSP language fix: division expressions were evaluated too often.
462        - NKSP language fix: string concatenation operator was right
463          associative instead of left (to right).
464        - NKSP language correction: allow empty statements in entire language
465          (i.e. "if end if").
466        - Implemented built-in script function "stop_wait()".
467        - Implemented built-in script variable "$NI_CALLBACK_ID".
468        - Implemented built-in script variable "$NI_CALLBACK_TYPE".
469        - Implemented built-in script variable "$NKSP_IGNORE_WAIT".
470        - Added support for read-only built-in variables (respectively
471          handled by the script parser).
472        - Added built-in script constant "$NI_CB_TYPE_INIT".
473        - Added built-in script constant "$NI_CB_TYPE_NOTE".
474        - Added built-in script constant "$NI_CB_TYPE_RELEASE".
475        - Added built-in script constant "$NI_CB_TYPE_CONTROLLER".
476        - NKSP Language: Added support for user defined script functions.
477        - Implemented built-in script function "change_attack()".
478        - Implemented built-in script function "change_decay()".
479        - Implemented built-in script function "change_release()".
480        - Fixed all change_*() built-in script functions to apply their
481          synthesis parameter changes immediately in case the respective note
482          was triggered at the same time, instead of scheduling the parameter
483          change, especially because it would cause some parameter types's
484          changes either to be ramped (i.e. change_vol()) or other types even
485          to have not effect at all (i.e. change_attack()).
486        - Implemented built-in script function "sh_left()".
487        - Implemented built-in script function "sh_right()".
488        - Implemented built-in script function "min()".
489        - Implemented built-in script function "max()".
490        - NKSP Fix: "init" event handler was not always executed when a script
491          was loaded.
492        - NKSP built-in wait() script function: abort script execution if
493          a negative or zero wait time was passed as argument (since this is
494          a common indication of a bug either of the script or even of the
495          engine, which could lead to RT instability or even worse).
496        - ScriptVM: Implemented automatic suspension of RT safety
497          threatening scripts.
498        - Provide more user friendly error messages on syntax errors.
499        - Fixed NKSP parser warning "Not a statement" when assigning an
500          initializer list to an array variable.
501        - Implemented built-in script array variable "%ALL_EVENTS".
502        - Implemented built-in script function "in_range()".
503        - Implemented built-in script function "change_amp_lfo_depth()".
504        - Implemented built-in script function "change_amp_lfo_freq()".
505        - Implemented built-in script function "change_pitch_lfo_depth()".
506        - Implemented built-in script function "change_pitch_lfo_freq()".
507        - Implemented built-in script function "change_vol_time()".
508        - Implemented built-in script function "change_tune_time()".
509        - Implemented built-in script function "fade_in()".
510        - Implemented built-in script function "fade_out()".
511        - Fixed acceptance of wrong data type of parameters passed to built-in
512          script functions "change_vol()", "change_tune()", "change_pan()",
513          "change_cutoff()", "change_reso()", "change_attack()", "change_decay()",
514          "change_release()", "change_amp_lfo_depth()", "change_amp_lfo_freq()",
515          "change_pitch_lfo_depth()" and "change_pitch_lfo_freq()".
516        - Added built-in script function "get_event_par()" and implemented some
517          of its possible parameter selections.
518        - Added built-in script function "set_event_par()" and implemented some
519          of its possible parameter selections.
520        - Fixed a bunch of scheduler time related bugs.
521        - Fixed polyphonic variables not being reset to zero after usage.
522        - Built-in "ignore_event()" function: argument is now optional, like with
523          built-in function "ignore_controller()".
524        - Implemented built-in script function "change_velo()".
525        - Implemented built-in script function "change_note()".
526        - Adjusted behavior of "change_vol()" and "change_tune()" to a more
527          intuitive behavior if used in combination with "change_vol_time()" or
528          "change_tune_time()" respectively: now tuning/volume changes are only
529          assigned (without delay) immediately to a new note if the respective
530          timing function has not been called before, otherwise the volume/tuning
531          changes are automatically faded (before, only the event's time stamp was
532          relevant).
533         - Implemented built-in script function "array_equal()".
534         - Implemented built-in script function "search()".
535         - Implemented built-in script function "sort()".
536         - NKSP Fix: Never suspend "init" event handlers.
537         - Implemented built-in script function "same_region()" (currently only
538           available for gig format engine).
539         - Added built-in script constant "$NKSP_LINEAR".
540         - Added built-in script constant "$NKSP_EASE_IN_EASE_OUT".
541         - Implemented built-in script function "change_vol_curve()".
542         - Implemented built-in script function "change_tune_curve()".
543         - built-in "play_note()" function now supports a sample playback start
544           offset with argument 3, where special value -1 means to use the regular
545           sample offset as defined by the instrument file.
546         - Built-in array variable %KEY_DOWN[] is now a read-only variable.
547         - Built-in variable $EVENT_NOTE is now a read-only variable.
548         - Built-in variable $EVENT_VELOCITY is now a read-only variable.
549         - built-in "play_note()" function now accepts -2 for its fourth argument
550           (note duration) which means the life time of the note shall be sticked
551           to the requested note number of argument 1.
552         - Fix: built-in "play_note()" function now returns 0 as result value if
553           -1 was passed for its fourth argument (note duration) and the respective
554           parent note is already gone.
555        - Implemented built-in script function "change_play_pos()".
556        - NKSP language: Added support for user declared const array variables.
557        - NKSP language: Raise parser warning if array variable is accessed with
558          an index that exceeds the array's size.
559        - NKSP language fix: Unknown characters were not handled correctly.
560        - NKSP language: Added support for "synchronized .. end synchronized"
561          code blocks.
562        - Implemented built-in script function "abort()" which allows to abort
563          another script handler by passing its callback ID.
564        - Fixed potential memory access bug and potential undefined behavior of
565          "init" event handlers.
566        - Print a time stamp along to each call of built-in function "message()".
567        - ScriptVM API: Added VMParserContext::preprocessorComments() which allows
568          to retrieve all code blocks filtered out by the preprocessor.
569        - Added built-in script function "fork()".
570        - Added built-in array variable %NKSP_CALLBACK_CHILD_ID[].
571        - Added built-in variable $NKSP_CALLBACK_PARENT_ID.
572        - Fixed potential crash when accessing dynamic built-in array variables.
573        - Added built-in script function "callback_status()".
574        - Added built-in constant $CALLBACK_STATUS_TERMINATED.
575        - Added built-in constant $CALLBACK_STATUS_QUEUE.
576        - Added built-in constant $CALLBACK_STATUS_RUNNING.
577        - Removed max. value limitation of built-in functions "change_attack()",
578          "change_decay()" and "change_release()" to i.e. allow passing 2000000
579          for doubling the respective time.
580        - NKSP script editor syntax highlighting API: Fixed app termination due
581          to a lexer start condition stack underrun.
582        - NKSP preprocessor: Fixed wrong behavior on nested USE_CODE_IF() and
583          USE_CODE_IF_NOT() preprocessor statements.
584        - NKSP: Added built-in preprocessor condition NKSP_NO_MESSAGE, which
585          can be set to disable all subsequent built-in "message()" function calls
586          on preprocessor level.
587        - Implemented built-in script function "change_sustain()".
588        - NKSP script editor syntax highlighting API: catch all fatal lexer errors,
589          to avoid the editor app to crash on ill-formed text input.
590        - Added built-in script function "change_pan_time()".
591        - Added built-in script function "change_pan_curve()".
592        - Added built-in script function "change_cutoff_attack()".
593        - Added built-in script function "change_cutoff_decay()".
594        - Added built-in script function "change_cutoff_sustain()".
595        - Added built-in script function "change_cutoff_release()".
596        - Added built-in script function "change_cutoff_lfo_depth()".
597        - Added built-in script function "change_cutoff_lfo_freq()".
598    
599      * Instruments DB:
600        - Fixed memory access bug of general DB access code which lead to
601          undefined behavior.
602        - Cleanup of instruments DB file creation and opening code.
603        - The instrument DB path of linuxsampler's --create-instruments-db argument
604          is now optional, if it is missing, then a default location is used.
605        - Added support for scanning SFZ (.sfz) files.
606        - Added support for scanning Sound Font (.sf2) files.
607        - Fixed undefined DB transaction behavior.
608    
609    Version 2.0.0 (15 July 2015)
610    
611    * packaging changes:    * packaging changes:
612      - fixed building with newer MinGW-w64      - fixed building with newer MinGW-w64
# Line 34  Version CVS HEAD (?) Line 642  Version CVS HEAD (?)
642      - fixed build error on newer MinGW      - fixed build error on newer MinGW
643      - support building with older jack versions      - support building with older jack versions
644      - support building with spaces in vst sdk path      - support building with spaces in vst sdk path
645        - enabled automake 'subdir-objects' option and moved external
646          source references (vst, au, asio) from makefiles to cpp files,
647          in order to get rid of warnings from automake 1.14
648    
649    * general changes:    * general changes:
650      - Refactoring: moved the independent code from      - Refactoring: moved the independent code from
# Line 91  Version CVS HEAD (?) Line 702  Version CVS HEAD (?)
702      - AbstractEngine::GSChecksum(): don't allocate memory on the stack (was      - AbstractEngine::GSChecksum(): don't allocate memory on the stack (was
703        unsafe and caused compilation error with clang 2.x).        unsafe and caused compilation error with clang 2.x).
704      - Bugfix: only process the latest MIDI program change event.      - Bugfix: only process the latest MIDI program change event.
705        - Introducing the LSCP shell, which provides convenient control of the
706          sampler from the command line by providing LSCP aware features.
707        - VirtualMidiDevice: Added support for program change.
708        - VirtualMidiDevice: Added support for bank select (MSB & LSB).
709        - VirtualMidiDevice: Added support for pitch bend.
710        - Aftertouch: extended API to explicitly handle channel pressure and
711          polyphonic key pressure events (so far polyphonic pressure was not
712          supported at all, and channel pressure was rerouted as CC128 but not
713          used so far).
714        - Added initial support for real-time instrument scripts. The script VM
715          code is shared by all sampler engine implemementations, however only the
716          gig file format currently provides support for storing instrument scripts
717          (as LinuxSampler extension to the original GigaStudio 4 format).
718    
719    * Gigasampler format engine:    * Gigasampler format engine:
720      - implemented the "round robin keyboard" dimension      - implemented the "round robin keyboard" dimension
# Line 107  Version CVS HEAD (?) Line 731  Version CVS HEAD (?)
731      - Exclusive Groups: don't ever stop voices of the same note,      - Exclusive Groups: don't ever stop voices of the same note,
732        doesn't sound naturally with a drumkit        doesn't sound naturally with a drumkit
733      - fixed EG1 modulation when attack or release is zero      - fixed EG1 modulation when attack or release is zero
734        - Fixed support for 'aftertouch' attenuation controller.
735        - Fixed crash that happened with velocity split sounds under certain
736          conditions (see also previous commit on libgig).
737        - fixed behaviour of filter LFO
738    
739    * SFZ format engine:    * SFZ format engine:
740      - Initial implementation (not usable yet)      - Initial implementation (not usable yet)
# Line 266  Version CVS HEAD (?) Line 894  Version CVS HEAD (?)
894      - added FLAC support (#191)      - added FLAC support (#191)
895      - sfz parser bugfix: lines starting with whitespace were ignored      - sfz parser bugfix: lines starting with whitespace were ignored
896      - added amplitude opcode      - added amplitude opcode
897        - added support for "#include" instruction
898          (modified patch which was originally posted by Sergey on LS mailing list)
899        - bugfix: generation of velocity curves etc should not be done
900          after each "#include", only after the main file is parsed
901        - bugfix: line numbers in error messages were wrong after "#include"
902        - added support for float and 32 bit sample files
903    
904    * SoundFont format engine:    * SoundFont format engine:
905      - Initial implementation (not usable yet)      - Initial implementation (not usable yet)
# Line 313  Version CVS HEAD (?) Line 947  Version CVS HEAD (?)
947      - VST: implemented retrieval and switching of programs using the      - VST: implemented retrieval and switching of programs using the
948        sampler's internal MIDI instrument mapping system        sampler's internal MIDI instrument mapping system
949    
950      * Instrument editor interface:
951        - Changed instrument editor plugin interface, providing additional
952          informations like the EngineChannel for which the instrument editor was
953          spawned for. This allows the instrument editors to interact more actively
954          with the sampler.
955    
956    * MIDI driver:    * MIDI driver:
957      - ALSA MIDI driver supports now "NAME" device parameter, for overriding      - ALSA MIDI driver supports now "NAME" device parameter, for overriding
958        the ALSA sequencer client name        the ALSA sequencer client name
# Line 334  Version CVS HEAD (?) Line 974  Version CVS HEAD (?)
974      - Implemented missing handling of MIDI "running status".      - Implemented missing handling of MIDI "running status".
975      - CoreMIDI fix: a MIDIPacket can contain more than one event per packet.      - CoreMIDI fix: a MIDIPacket can contain more than one event per packet.
976      - MME bugfix: driver wasn't closed properly      - MME bugfix: driver wasn't closed properly
977        - CoreMIDI: automatically connect to all input sources by default (driver
978          parameter "AUTO_BIND").
979        - CoreMIDI: fixed auto bind feature to CoreMIDI ports that go online
980        - CoreMIDI: fixed minor memory leak
981    
982    * audio driver:    * audio driver:
983      - ASIO driver fixes for newer gcc versions (fix from PortAudio)      - ASIO driver fixes for newer gcc versions (fix from PortAudio)
# Line 344  Version CVS HEAD (?) Line 988  Version CVS HEAD (?)
988      - ASIO driver: removed compiler warnings      - ASIO driver: removed compiler warnings
989      - CoreAudio: fixed minor error handling bug      - CoreAudio: fixed minor error handling bug
990      - ASIO driver: be more verbose when no ASIO card could be found (fixes #203)      - ASIO driver: be more verbose when no ASIO card could be found (fixes #203)
991        - JACK audio: return the JACK server's current sample rate as default value
992          for audio device parameter "SAMPLERATE" (fixes #166).
993    
994    * LSCP server:    * LSCP server:
995      - added support for sending MIDI CC messages via LSCP command      - added support for sending MIDI CC messages via LSCP command
# Line 381  Version CVS HEAD (?) Line 1027  Version CVS HEAD (?)
1027      - added LSCP commands "SUBSCRIBE EFFECT_INSTANCE_COUNT",      - added LSCP commands "SUBSCRIBE EFFECT_INSTANCE_COUNT",
1028        "SUBSCRIBE EFFECT_INSTANCE_INFO", "SUBSCRIBE SEND_EFFECT_CHAIN_COUNT",        "SUBSCRIBE EFFECT_INSTANCE_INFO", "SUBSCRIBE SEND_EFFECT_CHAIN_COUNT",
1029        "SUBSCRIBE SEND_EFFECT_CHAIN_INFO"        "SUBSCRIBE SEND_EFFECT_CHAIN_INFO"
1030        - provide comprehensive error messages on LSCP syntax errors
1031          (suggesting expected next non-terminal symbols)
1032        - Fixed client connection not being closed after network errors.
1033    
1034      * LSCP shell:
1035        - Added support for auto correction of obvious and trivial syntax mistakes.
1036        - Added support for auto completion by tab key.
1037        - Show currently available auto completion while typing.
1038        - Added support for browsing command history with up / down keys.
1039        - Show all possible next symbols immediately right to the current command
1040          line while typing (no double tab required for this feature, as it would
1041          be the case in other shells).
1042        - Added support for moving cursor left/right with arrow keys.
1043        - Added support for built-in LSCP reference documentation, which will
1044          automatically show the relevant LSCP reference section on screen as soon
1045          as one specific LSCP command was detected while typing on the command
1046          line.
1047    
1048      * Real-time instrument scripts:
1049        - Implemented built-in script array variable %CC.
1050        - Implemented built-in script int variable $CC_NUM.
1051        - Implemented built-in script int variable $EVENT_NOTE.
1052        - Implemented built-in script int variable $EVENT_VELOCITY.
1053        - Implemented built-in script constant variable $VCC_MONO_AT.
1054        - Implemented built-in script constant variable $VCC_PITCH_BEND.
1055        - Implemented execution of script event handler "init".
1056        - Implemented execution of script event handler "controller".
1057        - Implemented execution of script event handler "note".
1058        - Implemented execution of script event handler "release".
1059        - Implemented built-in script function "play_note()" (only two of the
1060          max. four function arguments are currently implemented yet though).
1061        - Implemented built-in script int variable $EVENT_ID.
1062        - Implemented built-in script function "ignore_event()"
1063        - Implemented built-in script function "ignore_controller()" (may have one
1064          or no argument).
1065        - Implemented built-in script function "set_controller()".
1066        - Added extended script VM for the Gigasampler/GigaStudio format sampler
1067          engine, which extends the general instrument script VM with Giga format
1068          specific variables and functions.
1069        - Giga format scripts: added built-in script int constant variables
1070          $GIG_DIM_CHANNEL, $GIG_DIM_LAYER, $GIG_DIM_VELOCITY, $GIG_DIM_AFTERTOUCH,
1071          $GIG_DIM_RELEASE, $GIG_DIM_KEYBOARD, $GIG_DIM_ROUNDROBIN, $GIG_DIM_RANDOM,
1072          $GIG_DIM_SMARTMIDI, $GIG_DIM_ROUNDROBINKEY, $GIG_DIM_MODWHEEL,
1073          $GIG_DIM_BREATH, $GIG_DIM_FOOT, $GIG_DIM_PORTAMENTOTIME, $GIG_DIM_EFFECT1,
1074          $GIG_DIM_EFFECT2, $GIG_DIM_GENPURPOSE1, $GIG_DIM_GENPURPOSE2,
1075          $GIG_DIM_GENPURPOSE3, $GIG_DIM_GENPURPOSE4, $GIG_DIM_SUSTAIN,
1076          $GIG_DIM_PORTAMENTO, $GIG_DIM_SOSTENUTO, $GIG_DIM_SOFT,
1077          $GIG_DIM_GENPURPOSE5, $GIG_DIM_GENPURPOSE6, $GIG_DIM_GENPURPOSE7,
1078          $GIG_DIM_GENPURPOSE8, $GIG_DIM_EFFECT1DEPTH, $GIG_DIM_EFFECT2DEPTH,
1079          $GIG_DIM_EFFECT3DEPTH, $GIG_DIM_EFFECT4DEPTH, $GIG_DIM_EFFECT5DEPTH.
1080        - Giga format scripts: Implemented built-in script function
1081          "gig_set_dim_zone(event_id, dimension, zone)".
1082        - Implemented built-in script int array variable %KEY_DOWN.
1083        - Implemented built-in script function "abs()".
1084        - Implemented built-in script function "random()".
1085        - Implemented built-in script function "num_elements()".
1086        - Implemented built-in script function "note_off()".
1087        - Implemented built-in script function "set_event_mark()".
1088        - Implemented built-in script function "delete_event_mark()".
1089        - Implemented built-in script function "by_marks()".
1090        - Added built-in script int const variables $MARK_1 to $MARK_28.
1091        - Built-in script functions "ignore_event()", "note_off()" and
1092          "gig_set_dim_zone()" now also accept an array of event IDs as argument
1093          (i.e. return value of new script function "by_marks()").
1094        - Pass/preserve polyphonic variable data from respective "note" event
1095          handler to "release" event handler.
1096        - Fixed crash when using built-in script function "by_marks()".
1097    
1098    * Bug fixes:    * Bug fixes:
1099      - Fixed crash which may occur when MIDI key + transpose is out of range      - Fixed crash which may occur when MIDI key + transpose is out of range
# Line 428  Version CVS HEAD (?) Line 1141  Version CVS HEAD (?)
1141        crashes and noise on such transitions).        crashes and noise on such transitions).
1142      - ignore missing LADSPA paths without ignoring valid LADSPA paths      - ignore missing LADSPA paths without ignoring valid LADSPA paths
1143        (fixes #208)        (fixes #208)
1144        - Fixed bug in LSCP grammar definition which caused a statement like
1145          "GET SERVER INFOasdf\n" to be accepted as valid statement (was so far
1146          practically irrelevant, however it caused problems with the new LSCP
1147          shell's auto completion feature).
1148        - Fixed MIDI program change messages being ignored if quickly executed
1149          after each other (fixes #231).
1150    
1151  Version 1.0.0 (31 July 2009)  Version 1.0.0 (31 July 2009)
1152    

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