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revision 2365 by persson, Sat Sep 8 17:21:38 2012 UTC revision 3625 by schoenebeck, Thu Oct 3 13:37:25 2019 UTC
# Line 1  Line 1 
1  Version CVS HEAD (?)  Version SVN trunk (?)
2    
3    * plugin changes:    * general changes:
4      - LV2 "state" extension support (patch by David Robillard)      - 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    
30      * Real-time instrument scripts:
31        - Added method ScriptVM::setExitResultEnabled() which allows to
32          explicitly enable the built-in exit() function to optionally accept
33          one function argument; the value of the passed exit() function
34          argument will then become available by calling
35          VMExecContext::exitResult() after script execution.
36        - 64 bit support for NKSP integer scripts variables (declare $foo).
37        - Variable names, function names and preprocessor condition names must start
38          with a regular character (a-z or A-Z); starting them with a digit or
39          underscore is not allowed.
40        - NKSP parser fix: equal comparison operator "=" and not equal comparison
41          operator "#" must only accept integer operands.
42        - NKSP language: Implemented support for standard units like Hertz, seconds,
43          Bel including support for metric unit prefixes; so one can now e.g.
44          conveniently use numbers in scripts like "5us" meaning "5 microseconds",
45          or e.g. "12kHz" meaning "12 kilo Hertz", or e.g. "-14mdB" meaning
46          "minus 14 Millidecibel", or e.g. "28c" meaning "28 cents" (for tuning).
47        - NKSP language: Introduced "final" operator "!" which is specifically
48          intended for synthesis parameter values to denote that the synthesis
49          parameter value is intended to be the "final" value for that synthesis
50          parameter that should explicitly be used by the engine and thus causing
51          the sampler engine to ignore all other modulation sources for the same
52          synthesis parameter (like e.g. LFO, EG); by simply prefixing a value,
53          variable or formula with this new "!" operator the expression is marked as
54          being "final".
55        - NKSP script editor API: Added support for detecting standard unit tokens
56          and their potential metric prefix token.
57        - NKSP language: Added support for NKSP real number literals and
58          arithmetic operations on them (e.g. "(3.9 + 2.9) / 12.3 - 42.0").
59        - NKSP language: Added support for NKSP real number (floating point) script
60          variables (declare ~foo).
61        - NKSP language: Added support for NKSP real number (floating point) array
62          script variables (declare ?foo[]).
63        - Built-in script function "message()" accepts now real number argument as
64          well.
65        - Added built-in script function "real_to_int()" and its short hand form
66          "int()" for casting from real number to integer in NKSP scripts.
67        - Added built-in script function "int_to_real()" and its short hand form
68          "real()" for casting from integer to real number in NKSP scripts.
69        - Allow built-in exit() function to potentially accept real number type
70          argument as well.
71        - Built-in script functions may have a different return type depending on
72          the arguments passed to the function.
73        - Built-in script function "abs()" optionally accepts and returns real
74          number.
75        - Built-in script functions "min()" and "max()" optionally accept real
76          number arguments and return real number as result in that case.
77        - NKSP VM API: Allow units and 'final'ness to be returned as result from
78          built-in functions (added methods VMFunction::returnUnitType() and
79          VMFunction::returnsFinal() for that purpose which must be implemented by
80          built-in function implementations).
81        - NKSP language: Allow metric unit prefixes of numeric scalar and array
82          variables to be changed freely at runtime (unlike unit types like Hz etc.
83          which are still sticky, parse-time features of variables which cannot be
84          changed at runtime for the intentional sake of determinism).
85        - NKSP language: 'final' values are prohibited for array variables for now
86          (attempt causes a parsers error).
87        - NKSP language: expressions with unit types (e.g. Hz) are prohibited for
88          conditions of runtime control structures like if(), while(), select()
89          (attempt causes a parser error).
90        - NKSP VM API: Allow built-in functions to perform their own, individual
91          parse time checks of arguments going to be passed to the function at
92          runtime (added method VMFunction::checkArgs() for that purpose).
93        - NKSP language: raise parser warning if only one operand of binary
94          operators (like logical 'or' comparison) contain a 'final' value (because
95          it would always yield in a 'final' result in such cases).
96        - NKSP language: Allow comparison (=, #, <, >, <=, >=) of values with
97          different metric unit prefixes, which will behave as expected (e.g.
98          result of expression '1000us < 2ms' is true).
99        - NKSP language: Allow adding values with different metric unit prefixes
100          (e.g. result of expression '100Hz + 5kHz' is '5100Hz').
101        - NKSP language: Allow subtracting values with different metric unit
102          prefixes (e.g. result of expression '1ms - 20us' is '980us').
103        - NKSP language: Allow multiplying with any metric unit prefixes
104          (e.g. result of expression '2k * 3ms' is '6s'), however multiplications
105          with unit types on both sides (e.g. '2s * 2s') is still prohibited since
106          we don't have any considerable practical use for a term like '4s^2'
107          (hence any attempt multiplying two unit types still causes parser error).
108        - NKSP language: Allow dividing by any metric unit prefixes and allow
109          division of same unit type on both sides (e.g. expression '8kHz / 1000Hz'
110          yields in unit free result '8'). So this is now a way to cast units away
111          e.g. for passing the result to other expressions, certain function calls
112          or variables which are not accepting any units (or that specific unit).
113        - NKSP language: integer arrays and real number arrays can now be converted
114          to strings (e.g. for dumping their content with message() calls for
115          script debugging purposes).
116        - NKSP language: expressions and variables with units are now correctly
117          casted to strings (e.g. with message() calls).
118        - NKSP language: comparing real numbers for equalness (e.g. '~foo = 3.1') or
119          unequalness (e.g. '~foo # 3.1') is now less strict and takes the expected
120          floating point tolerances into account.
121        - NKSP VM API: Added methods VMScalarNumberExpr::evalCastInt() and
122          VMScalarNumberExpr::evalCastReal().
123        - NKSP VM API: Added base class 'VMNumberArrayExpr' for classes
124          'VMIntArrayExpr' and 'VMRealArrayExpr'.
125        - NKSP VM API: replaced all unitPrefix() (parse time) methods by
126          unitFactor() (runtime) methods.
127        - Built-in function "exit()" supports now returning units and 'final'ness
128          for test cases.
129        - The following built-in functions support now units as well: "abs()",
130          "random()", "inc()", "dec()", "in_range()", "min()", "max()",
131          "real_to_int()", "int()", "int_to_real()" and "real()".
132        - Built-in functions "array_equal()", "search()" and "sort()" support now
133          real number arrays (correctly) as well.
134        - Added individual parse time checks of arguments to be passed to built-in
135          functions "random()", "inc()", "dec()", "in_range()", "min()", "max()",
136          "array_equal()" and "search()" specific for their individual purposes.
137        - NKSP VM refactoring: Renamed all methods, functions and classes matching
138          pattern *ScalarNumber* to simply *Number* (that is i.e. classes
139          VMScalarNumberExpr -> VMNumberExpr, ScalarNumberExpr -> NumberExpr,
140          ScalarNumberVariable -> NumberVariable, ScalarNumberBinaryOp ->
141          NumberBinaryOp, VMScalarNumberResultFunction -> VMNumberResultFunction,
142          method VMExpr::asScalarNumberExpr() -> VMExpr::asNumber(), function
143          isScalarNumber() -> isNumber()).
144        - NKSP VM API: Added 4 overridden methods to class VMNumberExpr:
145          evalCastInt(MetricPrefix_t), evalCastInt(MetricPrefix_t,MetricPrefix_t),
146          evalCastReal(MetricPrefix_t), evalCastReal(MetricPrefix_t,MetricPrefix_t)
147          as convenient methods for automatically converting values to expected
148          metric value basis.
149        - Built-in function "wait()" accepts now both integers and real numbers as
150          argument.
151        - NKSP VM API cleanup: Get rid of legacy method
152          VMFunction::argType(vmint iArg) which was already superseded by its new
153          replacement VMFunction::acceptsArgType(vmint iArg, ExprType_t type).
154        - NKSP parser: if wrong argument type was passed to a built-in function and
155          that built-in function accepts more than one data type for the argument,
156          then show all supported data types as parser error message.
157        - Built-in function "play_note()" accepts now real numbers and seconds as
158          unit type as well for its 3rd and 4th function arguments.
159        - The following built-in functions accept now real numbers as well for their
160          2nd function argument: "change_vol()", "change_tune()", "change_cutoff()",
161          "change_attack()", "change_decay()", "change_release()",
162          "change_sustain()", "change_cutoff_attack()", "change_cutoff_decay()",
163          "change_cutoff_sustain()", "change_cutoff_release()",
164          "change_amp_lfo_freq()", "change_cutoff_lfo_freq()",
165          "change_pitch_lfo_freq()", "change_vol_time()", "change_tune_time()",
166          "change_pan_time()", "fade_in()", "fade_out()", "change_play_pos()".
167        - Fixed built-in function "change_play_pos()" not having accepted metric
168          prefixes at all.
169        - Fixed the following built-in functions having misinterpreted values given
170          with unit type (for their 2nd argument) as if they were relative values
171          (that is as if they were passed without a unit type): "change_attack()",
172          "change_decay()", "change_release()", "change_cutoff_attack()",
173          "change_cutoff_decay()", "change_cutoff_release()".
174        - Fixed the following built-in functions having applied completely wrong
175          'final' values: "change_sustain()", "change_cutoff_sustain()" (since the
176          respective EGs being their modulation sink assume uint data type with
177          value range 0..1000 instead of 0.0..1.0.
178        - Added individual parse-time checks of function arguments for the following
179          built-in functions: "play_note()", "note_off()", "set_event_mark()",
180          "delete_event_mark()", "by_marks()", "change_cutoff()", "change_attack()",
181          "change_decay()", "change_release()", "change_cutoff_attack()",
182          "change_cutoff_decay()", "change_cutoff_release()",
183          "change_amp_lfo_freq()", "change_cutoff_lfo_freq()",
184          "change_pitch_lfo_freq()", "change_vol_time()", "change_tune_time()" and
185          "change_pan_time()".
186        - Don't abort function call if unit type was used and at the same time
187          'final' operator was omitted for the primary value argument of the
188          following built-in functions: "change_cutoff()", "change_attack()",
189          "change_decay()", "change_release()", "change_cutoff_attack()",
190          "change_cutoff_decay()", "change_cutoff_release()",
191          "change_amp_lfo_freq()", "change_cutoff_lfo_freq()",
192          "change_pitch_lfo_freq()", "change_vol_time()", "change_tune_time()",
193          "change_pan_time()", instead imply 'final'ness at runtime and raise an
194          appropriate parser warning at parse time.
195        - Added built-in real number functions "round()", "ceil()", "floor()",
196          "sqrt()", "log()", "log2()", "log10()", "exp()", "pow()", "sin()",
197          "cos()", "tan()", "asin()", "acos()", "atan()".
198        - Added built-in script real number constant "~NI_MATH_PI".
199        - Added built-in script real number constant "~NI_MATH_E".
200        - NKSP language: Allow unary '+' operator.
201    
202      * test cases:
203        - Fixed compiler errors in test cases.
204        - Updated README for how to compile & run test cases.
205        - Updated test case
206          MutexTest::testDoubleLockStillBlocksConcurrentThread() to latest
207          expected behaviour of the Mutex class implementation (recursive
208          mutex type).
209        - Added test cases for NKSP core language aspects and core built-in
210          functions.
211        - Fixed thread tests segfaulting on Linux.
212        - NKSP: Added real number test cases for built-in functions exit(),
213          int_to_real(), real(), real_to_int() and int(), as well as for the
214          plus, minus and negate language operators.
215        - Added massive amount of NKSP test cases for standard measuring units and
216          'final' operator usage cases.
217        - Added NKSP test cases for (floating point tolerance aware) real number
218          equalness / unequalness comparison.
219        - Added NKSP int array and real array tests for value assignment and
220          initialization of arrays.
221        - Added NKSP test cases for built-in functions "round()", "ceil()",
222          "floor()", "sqrt()", "log()", "log2()", "log10()", "exp()", "pow()",
223          "sin()", "cos()", "tan()", "asin()", "acos()", "atan()".
224        - Added NKSP test cases for unary '+' operator.
225    
226      * GigaStudio/Gigasampler format engine:
227        - LFOTriangleIntMath and LFOTriangleIntAbsMath: Fixed FlipPhase=true
228          behaviour for start_level_mid.
229        - Changed LFO start levels: LFO1 and LFO2 both to mid, LFO3 to max. start
230          level (see discussion "GigaStudio LFO compatibility" on mailing list
231          from 2019-09-26 for details).
232        - Changed default wave form for all 3 LFOs to sine (instead of triangle;
233          see discussion "GigaStudio LFO compatibility" on mailing list from
234          2019-09-26 for details).
235        - Format extension: Added support for different LFO wave forms (currently
236          either sine [default], triangle, saw or square).
237        - Format extension: Added support for LFO phase displacement (0°..360°).
238        - Format extension: Added support for flipping LFO polarity on LFO 3
239          (in the original gig format this was only available for LFO 1 and LFO 2).
240    
241      * SFZ format engine:
242        - Fixed support for regions with loccN/hiccN conditions on more than one
243          MIDI controller.
244    
245      * Benchmarks:
246        - Fixed benchmarks/triang.cpp falsely having favoured "int math abs"
247          algorithm (since result of 2nd run was not accumulated).
248        - Added benchmark for saw wave (benchmarks/saw.cpp).
249        - Added benchmark for sine wave (benchmarks/sine.cpp).
250        - Added benchmark for square wave (benchmarks/square.cpp).
251        - Increased amount of benchmarks runs by factor 6 to achieve benchmark times
252          which are large enough on modern systems.
253    
254    Version 2.1.1 (27 Jul 2019)
255    
256      * Real-time instrument scripts:
257        - Fixed behavior of built-in NKSP functions change_sustain(),
258          change_cutoff_attack(), change_cutoff_decay(), change_cutoff_sustain()
259          and change_cutoff_release().
260    
261      * general changes:
262        - Only play release trigger samples on sustain pedal up if this behaviour
263          was explicitly requested by the instrument (otherwise only on note-off).
264        - Fixed compiler warnings.
265        - Fixed compilation error when cross-compiling to Mac.
266        - FX Sends: Provide more useful error messages on routing problems
267          (see bug #169).
268        - LSCP doc: Be more clear describing the two distinct approaches
269          of using external vs. internal effects (see bug #169).
270        - "optional" class: Fixed comparison operators.
271    
272      * Gigasampler/GigaStudio format engine:
273        - Format extension: If requested by instrument then don't play release
274          trigger sample on note-off events.
275    
276      * SFZ format engine:
277        - Fixed memory leak when releasing samples
278          (fixes bug #307, patch by Jacek Roszkowski)
279        - Fixed potential crash when a sample is shared by more than one region
280          (fixes bug #308, patch by Jacek Roszkowski).
281        - Opcode 'sample': Added support for built-in sample '*silence'
282          (fixes bug #310, patch by Jacek Roszkowski).
283    
284    Version 2.1.0 (25 Nov 2017)
285    
286      * SFZ format engine:
287        - added support for <global>, <master> and #define (patch by Alby M)
288        - Removed code duplication in SFZ file loading code.
289        - Added support for sfz extension opcode 'script' which may be used to
290          load real-time instrument script file (NKSP script language).
291        - Implemented opcode set_ccN (initial patch by Giovanni Senatore).
292        - Fixed unintended volume fade-in of voices under certain conditions.
293        - sfz parser: allow missing space between header and opcode
294    
295      * Gigasampler/GigaStudio format engine:
296        - Fixed clicks and pumping noise with Lowpass Turbo filter on very low
297          cutoff settings.
298        - Got rid of resembling an ancient GSt misbehavior which did not pitch at
299          all if an up-pitch of more than 40 semi tones was requested (I don't
300          think there is any stock gig sound that requires this behavior to
301          resemble its original sound).
302        - Added support for controlling whether the individual EGADSR stages may
303          be aborted (as LinuxSampler extension to the original GigaStudio 4
304          format).
305    
306      * general changes:
307        - fixed printf type errors (mostly in debug messages)
308        - use unique_ptr instead of auto_ptr when building with C++11
309        - Added RTAVLTree class which is a real-time safe ordered multi-map, thus
310          allowing to sort data efficiently in real-time safe manner.
311        - RTList class: added methods for moving/inserting elements to arbitrary
312          position within a list.
313        - RTList class: added method fromPtr() for creating an Iterator object from
314          a raw element pointer.
315        - Attempt to partly fix resetting engine channels vs. resetting engine, an
316          overall cleanup of the Reset*(), ConnectAudioDevice(),
317          DisconnectAudioDevice() API methods would still be desirable though,
318          because the current situation is still inconsistent and error prone.
319        - Active voices are now internally grouped to "Note" objects, instead of
320          being directly assigned to a keyboard key. This allows more fine graded
321          processing of voices, which is i.e. required for certain instrument
322          script features.
323        - Fix: Release trigger voices were not spawned on sustain pedal up
324          (CC #64) events.
325        - Fix: Release trigger voices can now also distinguish correctly between
326          note-off and sustain pedal up events.
327        - All engines: Increased ramp speed of volume smoother and pan smoother
328          (while slow rate of crossfade smoother is preserved) to allow quick
329          volume and pan changes by instrument scripts for instance.
330        - gig/sf2/sfz: Fixed aftertouch channel pressure events being processed
331          properly and thus were ignored for certain uses.
332        - Added new C++ API method
333          VirtualMidiDevice::SendChannelPressureToSampler().
334        - windows, 32-bit: fixed potential crashes by making sure the stack in
335          sub threads is 16-byte aligned
336        - fixed numerous compiler warnings
337        - Fixed invalid (note-on) event ID being assigned to new Note objects.
338        - Revised fundamental C++ classes "Thread", "Mutex" and "Condition" which
339          fixes potential undefined behavior.
340        - Fixed Note object leak when triggering notes on keys which did not
341          have a valid sample mapped (fixes bug #252).
342        - Fixed compilation errors when compiling with CONFIG_DEVMODE enabled.
343        - linuxsampler binary fix: option --create-instruments-db ignored
344          subsequent optional argument due to glibc's implementation oddity
345          which expects a "=" sign, but no space between them.
346    
347      * packaging changes:
348        - removed unnecessary dependency to libuuid
349          (originated by libgig's usage of it)
350        - Automake: set environment variable GCC_COLORS=auto to allow GCC to
351          auto detect whether it (sh/c)ould output its messages in color.
352        - Debian: Fixed packaging error about invalid "Source-Version"
353          substitution variable.
354        - Debian: Raised Debian compatibility level to Debian 9 "Stretch".
355        - Debian: Added build dependency to libsqlite3-dev for building
356          linuxsampler with instruments DB support.
357    
358      * Real-time instrument scripts:
359        - Implemented scheduler for delayed MIDI events and for suspended scripts.
360        - Built-in script function "wait()": implemented support for function's
361          "duration-us" argument, thus scripts using this function are now
362          correctly resumed after the requested amount of microseconds.
363        - Built-in script function "play_note()": implemented support for
364          function's "duration-us" argument, thus notes triggered with this
365          argument are now correctly released after the requested amount of
366          microseconds.
367        - Fix: script events were not cleared when engine channel was reset,
368          potentially causing undefined behavior.
369        - Fixed crash which happened when trying to reference an undeclared
370          variable.
371        - Built-in script function "play_note()": Added support for passing
372          special value -1 for "duration-us" argument, which will cause the
373          triggered note to be released once the original note was released.
374        - Instrument script classes now exported with the liblinuxsampler C++ API.
375        - Added new API method ScriptVM::syntaxHighlighting() which provides
376          a convenient syntax highlighting backend for external instrument
377          script editor applications.
378        - Added new C++ API class "ScriptVMFactory".
379        - Extended parser issues to provide not only first line and first
380          column, but also last line and last column of issue (thus marking
381          the precise span of the issue within the source code).
382        - Reload script automatically after being modified by an instrument
383          editor.
384        - NKSP language grammar correction: allow empty event handler bodies
385          like "on note end on".
386        - Implemented built-in script function "change_vol()".
387        - Implemented built-in script function "change_tune()".
388        - Implemented built-in script function "change_pan()".
389        - Implemented built-in script function "change_cutoff()".
390        - Implemented built-in script function "change_reso()".
391        - Implemented built-in script function "event_status()".
392        - Added built-in script constants "$EVENT_STATUS_INACTIVE" and
393          "$EVENT_STATUS_NOTE_QUEUE" both for being used as flags for
394          "event_status()" function.
395        - NKSP language: Added support for bitwise operators ".or.", ".and."
396          and ".not.".
397        - NKSP language scanner: Fixed IDs matching to require at least one
398          character (i.e. when matching function names or variable names).
399        - NKSP language scanner: disabled unusued rules.
400        - Fixed behavior of play_note() and note_off() functions which must
401          be distinguished engine internally from "real" MIDI note on/off
402          events in order to avoid misbehaviors like hanging notes.
403        - Implemented built-in script variable "$KSP_TIMER".
404        - Implemented built-in script variable "$NKSP_REAL_TIMER".
405        - Implemented built-in script variable "$NKSP_PERF_TIMER".
406        - Implemented built-in script variable "$ENGINE_UPTIME".
407        - Implemented built-in script function "inc()".
408        - Implemented built-in script function "dec()".
409        - NKSP language fix: division expressions were evaluated too often.
410        - NKSP language fix: string concatenation operator was right
411          associative instead of left (to right).
412        - NKSP language correction: allow empty statements in entire language
413          (i.e. "if end if").
414        - Implemented built-in script function "stop_wait()".
415        - Implemented built-in script variable "$NI_CALLBACK_ID".
416        - Implemented built-in script variable "$NI_CALLBACK_TYPE".
417        - Implemented built-in script variable "$NKSP_IGNORE_WAIT".
418        - Added support for read-only built-in variables (respectively
419          handled by the script parser).
420        - Added built-in script constant "$NI_CB_TYPE_INIT".
421        - Added built-in script constant "$NI_CB_TYPE_NOTE".
422        - Added built-in script constant "$NI_CB_TYPE_RELEASE".
423        - Added built-in script constant "$NI_CB_TYPE_CONTROLLER".
424        - NKSP Language: Added support for user defined script functions.
425        - Implemented built-in script function "change_attack()".
426        - Implemented built-in script function "change_decay()".
427        - Implemented built-in script function "change_release()".
428        - Fixed all change_*() built-in script functions to apply their
429          synthesis parameter changes immediately in case the respective note
430          was triggered at the same time, instead of scheduling the parameter
431          change, especially because it would cause some parameter types's
432          changes either to be ramped (i.e. change_vol()) or other types even
433          to have not effect at all (i.e. change_attack()).
434        - Implemented built-in script function "sh_left()".
435        - Implemented built-in script function "sh_right()".
436        - Implemented built-in script function "min()".
437        - Implemented built-in script function "max()".
438        - NKSP Fix: "init" event handler was not always executed when a script
439          was loaded.
440        - NKSP built-in wait() script function: abort script execution if
441          a negative or zero wait time was passed as argument (since this is
442          a common indication of a bug either of the script or even of the
443          engine, which could lead to RT instability or even worse).
444        - ScriptVM: Implemented automatic suspension of RT safety
445          threatening scripts.
446        - Provide more user friendly error messages on syntax errors.
447        - Fixed NKSP parser warning "Not a statement" when assigning an
448          initializer list to an array variable.
449        - Implemented built-in script array variable "%ALL_EVENTS".
450        - Implemented built-in script function "in_range()".
451        - Implemented built-in script function "change_amp_lfo_depth()".
452        - Implemented built-in script function "change_amp_lfo_freq()".
453        - Implemented built-in script function "change_pitch_lfo_depth()".
454        - Implemented built-in script function "change_pitch_lfo_freq()".
455        - Implemented built-in script function "change_vol_time()".
456        - Implemented built-in script function "change_tune_time()".
457        - Implemented built-in script function "fade_in()".
458        - Implemented built-in script function "fade_out()".
459        - Fixed acceptance of wrong data type of parameters passed to built-in
460          script functions "change_vol()", "change_tune()", "change_pan()",
461          "change_cutoff()", "change_reso()", "change_attack()", "change_decay()",
462          "change_release()", "change_amp_lfo_depth()", "change_amp_lfo_freq()",
463          "change_pitch_lfo_depth()" and "change_pitch_lfo_freq()".
464        - Added built-in script function "get_event_par()" and implemented some
465          of its possible parameter selections.
466        - Added built-in script function "set_event_par()" and implemented some
467          of its possible parameter selections.
468        - Fixed a bunch of scheduler time related bugs.
469        - Fixed polyphonic variables not being reset to zero after usage.
470        - Built-in "ignore_event()" function: argument is now optional, like with
471          built-in function "ignore_controller()".
472        - Implemented built-in script function "change_velo()".
473        - Implemented built-in script function "change_note()".
474        - Adjusted behavior of "change_vol()" and "change_tune()" to a more
475          intuitive behavior if used in combination with "change_vol_time()" or
476          "change_tune_time()" respectively: now tuning/volume changes are only
477          assigned (without delay) immediately to a new note if the respective
478          timing function has not been called before, otherwise the volume/tuning
479          changes are automatically faded (before, only the event's time stamp was
480          relevant).
481         - Implemented built-in script function "array_equal()".
482         - Implemented built-in script function "search()".
483         - Implemented built-in script function "sort()".
484         - NKSP Fix: Never suspend "init" event handlers.
485         - Implemented built-in script function "same_region()" (currently only
486           available for gig format engine).
487         - Added built-in script constant "$NKSP_LINEAR".
488         - Added built-in script constant "$NKSP_EASE_IN_EASE_OUT".
489         - Implemented built-in script function "change_vol_curve()".
490         - Implemented built-in script function "change_tune_curve()".
491         - built-in "play_note()" function now supports a sample playback start
492           offset with argument 3, where special value -1 means to use the regular
493           sample offset as defined by the instrument file.
494         - Built-in array variable %KEY_DOWN[] is now a read-only variable.
495         - Built-in variable $EVENT_NOTE is now a read-only variable.
496         - Built-in variable $EVENT_VELOCITY is now a read-only variable.
497         - built-in "play_note()" function now accepts -2 for its fourth argument
498           (note duration) which means the life time of the note shall be sticked
499           to the requested note number of argument 1.
500         - Fix: built-in "play_note()" function now returns 0 as result value if
501           -1 was passed for its fourth argument (note duration) and the respective
502           parent note is already gone.
503        - Implemented built-in script function "change_play_pos()".
504        - NKSP language: Added support for user declared const array variables.
505        - NKSP language: Raise parser warning if array variable is accessed with
506          an index that exceeds the array's size.
507        - NKSP language fix: Unknown characters were not handled correctly.
508        - NKSP language: Added support for "synchronized .. end synchronized"
509          code blocks.
510        - Implemented built-in script function "abort()" which allows to abort
511          another script handler by passing its callback ID.
512        - Fixed potential memory access bug and potential undefined behavior of
513          "init" event handlers.
514        - Print a time stamp along to each call of built-in function "message()".
515        - ScriptVM API: Added VMParserContext::preprocessorComments() which allows
516          to retrieve all code blocks filtered out by the preprocessor.
517        - Added built-in script function "fork()".
518        - Added built-in array variable %NKSP_CALLBACK_CHILD_ID[].
519        - Added built-in variable $NKSP_CALLBACK_PARENT_ID.
520        - Fixed potential crash when accessing dynamic built-in array variables.
521        - Added built-in script function "callback_status()".
522        - Added built-in constant $CALLBACK_STATUS_TERMINATED.
523        - Added built-in constant $CALLBACK_STATUS_QUEUE.
524        - Added built-in constant $CALLBACK_STATUS_RUNNING.
525        - Removed max. value limitation of built-in functions "change_attack()",
526          "change_decay()" and "change_release()" to i.e. allow passing 2000000
527          for doubling the respective time.
528        - NKSP script editor syntax highlighting API: Fixed app termination due
529          to a lexer start condition stack underrun.
530        - NKSP preprocessor: Fixed wrong behavior on nested USE_CODE_IF() and
531          USE_CODE_IF_NOT() preprocessor statements.
532        - NKSP: Added built-in preprocessor condition NKSP_NO_MESSAGE, which
533          can be set to disable all subsequent built-in "message()" function calls
534          on preprocessor level.
535        - Implemented built-in script function "change_sustain()".
536        - NKSP script editor syntax highlighting API: catch all fatal lexer errors,
537          to avoid the editor app to crash on ill-formed text input.
538        - Added built-in script function "change_pan_time()".
539        - Added built-in script function "change_pan_curve()".
540        - Added built-in script function "change_cutoff_attack()".
541        - Added built-in script function "change_cutoff_decay()".
542        - Added built-in script function "change_cutoff_sustain()".
543        - Added built-in script function "change_cutoff_release()".
544        - Added built-in script function "change_cutoff_lfo_depth()".
545        - Added built-in script function "change_cutoff_lfo_freq()".
546    
547      * Instruments DB:
548        - Fixed memory access bug of general DB access code which lead to
549          undefined behavior.
550        - Cleanup of instruments DB file creation and opening code.
551        - The instrument DB path of linuxsampler's --create-instruments-db argument
552          is now optional, if it is missing, then a default location is used.
553        - Added support for scanning SFZ (.sfz) files.
554        - Added support for scanning Sound Font (.sf2) files.
555        - Fixed undefined DB transaction behavior.
556    
557    Version 2.0.0 (15 July 2015)
558    
559    * packaging changes:    * packaging changes:
560      - fixed building with newer MinGW-w64      - fixed building with newer MinGW-w64
# Line 23  Version CVS HEAD (?) Line 576  Version CVS HEAD (?)
576      - lsatomic.h: use gcc provided atomic functions if building with      - lsatomic.h: use gcc provided atomic functions if building with
577        gcc 4.7 and C++11        gcc 4.7 and C++11
578      - modernized configure script      - modernized configure script
579                - fixed linkage error when building with
580          LDFLAGS="-Wl,--no-undefined" (#190)
581        - fixed compilation with Clang 3.2
582        - removed usage of deprecated Automake variable INCLUDES
583        - fixed building with C++11
584        - build fix: ChangeFlagRelaxed.h was missing in makefile
585        - build fix: libsndfile compiler flags were missing in some
586          makefiles
587        - fix for building with bison 3.0 (#202)
588        - Mac OS X: added temporary hack allowing to spawn gigedit as callback
589          on the process's main thread
590        - fixed build error on newer MinGW
591        - support building with older jack versions
592        - support building with spaces in vst sdk path
593        - enabled automake 'subdir-objects' option and moved external
594          source references (vst, au, asio) from makefiles to cpp files,
595          in order to get rid of warnings from automake 1.14
596    
597    * general changes:    * general changes:
598      - Refactoring: moved the independent code from      - Refactoring: moved the independent code from
599        the Gigasampler format engine to base classes        the Gigasampler format engine to base classes
# Line 55  Version CVS HEAD (?) Line 625  Version CVS HEAD (?)
625        instrument on an engine channel (a.k.a. part). Some GigaStudio        instrument on an engine channel (a.k.a. part). Some GigaStudio
626        instruments for example are splitted over several files like        instruments for example are splitted over several files like
627        "Foo.gig", "Foo.gx01", "Foo.gx02", ...        "Foo.gig", "Foo.gx01", "Foo.gx02", ...
628        - Added new C++ API method Sampler::GetGlobalMaxVoices().
629        - Added new C++ API method Sampler::GetGlobalMaxStreams().
630        - Added new C++ API method Sampler::SetGlobalMaxVoices().
631        - Added new C++ API method Sampler::SetGlobalMaxStreams().
632        - Various "const" and "restrict" optimizations.
633        - all engines: add pan CC value to instrument pan parameter before
634          applying panning, instead of using two separate pan functions in
635          series (#182)
636        - added a lock guard class for exception safe mutex handling and
637          used it everywhere appropriate
638        - Immediately apply scale tuning changes to active voices.
639        - Exposed scale tuning to C++ API (along to the already existing standard
640          SysEx way).
641        - lsatomic.h fixes: seq_cst load and store were suboptimal for x86
642          and broken for ppc64. (Seq_cst loads and stores are actually not
643          used in LS, so the bug wasn't noticable.)
644        - lsatomic.h: added ARMv7 support
645        - Added support for multiple MIDI input ports per sampler channel (and
646          added various new C++ methods for this new feature / design change, old
647          C++ API methods for managing SamplerChannel's MIDI inputs are now marked
648          as deprecated but are still there and should provide full behavior
649          backward compatibility).
650        - AbstractEngine::GSChecksum(): don't allocate memory on the stack (was
651          unsafe and caused compilation error with clang 2.x).
652        - Bugfix: only process the latest MIDI program change event.
653        - Introducing the LSCP shell, which provides convenient control of the
654          sampler from the command line by providing LSCP aware features.
655        - VirtualMidiDevice: Added support for program change.
656        - VirtualMidiDevice: Added support for bank select (MSB & LSB).
657        - VirtualMidiDevice: Added support for pitch bend.
658        - Aftertouch: extended API to explicitly handle channel pressure and
659          polyphonic key pressure events (so far polyphonic pressure was not
660          supported at all, and channel pressure was rerouted as CC128 but not
661          used so far).
662        - Added initial support for real-time instrument scripts. The script VM
663          code is shared by all sampler engine implemementations, however only the
664          gig file format currently provides support for storing instrument scripts
665          (as LinuxSampler extension to the original GigaStudio 4 format).
666    
667    * Gigasampler format engine:    * Gigasampler format engine:
668      - implemented the "round robin keyboard" dimension      - implemented the "round robin keyboard" dimension
# Line 62  Version CVS HEAD (?) Line 670  Version CVS HEAD (?)
670        dimension zones is not a power of two        dimension zones is not a power of two
671      - made round robin use a counter for each region instead of each      - made round robin use a counter for each region instead of each
672        key        key
673        - bugfix: pitch LFO controller "internal+aftertouch" was broken
674        - bugfix: filter keyboard tracking was broken
675        - filter performance fix (an unnecessary copy was made of the
676          filter parameters in each sub fragment)
677        - handle special case when pan parameter in gig file has max or
678          min value
679        - Exclusive Groups: don't ever stop voices of the same note,
680          doesn't sound naturally with a drumkit
681        - fixed EG1 modulation when attack or release is zero
682        - Fixed support for 'aftertouch' attenuation controller.
683        - Fixed crash that happened with velocity split sounds under certain
684          conditions (see also previous commit on libgig).
685        - fixed behaviour of filter LFO
686    
687    * SFZ format engine:    * SFZ format engine:
688      - Initial implementation (not usable yet)      - Initial implementation (not usable yet)
# Line 217  Version CVS HEAD (?) Line 838  Version CVS HEAD (?)
838      - made end=0 play the whole sample      - made end=0 play the whole sample
839      - fixed support for lochan and hichan opcodes (#155)      - fixed support for lochan and hichan opcodes (#155)
840      - fixed crash when using lochan/hichan opcodes (#187)      - fixed crash when using lochan/hichan opcodes (#187)
841        - sfz parser: allow -200 to 200 for pan_oncc opcode (#182)
842        - added FLAC support (#191)
843        - sfz parser bugfix: lines starting with whitespace were ignored
844        - added amplitude opcode
845        - added support for "#include" instruction
846          (modified patch which was originally posted by Sergey on LS mailing list)
847        - bugfix: generation of velocity curves etc should not be done
848          after each "#include", only after the main file is parsed
849        - bugfix: line numbers in error messages were wrong after "#include"
850        - added support for float and 32 bit sample files
851    
852    * SoundFont format engine:    * SoundFont format engine:
853      - Initial implementation (not usable yet)      - Initial implementation (not usable yet)
# Line 227  Version CVS HEAD (?) Line 858  Version CVS HEAD (?)
858      - initial implementation of cutoff filter      - initial implementation of cutoff filter
859      - use linear decay and release for filter and pitch EG      - use linear decay and release for filter and pitch EG
860    
861    * Gigasampler format engine:    * Host plugins (VST, AU, LV2, DSSI):
     - bugfix: pitch LFO controller "internal+aftertouch" was broken  
     - bugfix: filter keyboard tracking was broken  
     - filter performance fix (an unnecessary copy was made of the  
       filter parameters in each sub fragment)  
   
   * Host plugins:  
862      - AU bugfix: failed to destroy its audio/MIDI devices      - AU bugfix: failed to destroy its audio/MIDI devices
863      - Listen to all interfaces on Mac OS X (INADDR_ANY)      - Listen to all interfaces on Mac OS X (INADDR_ANY)
864      - VST bugfix: If the host called resume() before and after      - VST bugfix: If the host called resume() before and after
# Line 247  Version CVS HEAD (?) Line 872  Version CVS HEAD (?)
872      - VST: made it possible to build the VST plugin for Mac      - VST: made it possible to build the VST plugin for Mac
873      - AU: link AU plugin dynamically if --disable-shared isn't      - AU: link AU plugin dynamically if --disable-shared isn't
874        specified        specified
875        - LV2 "state" extension support (patch by David Robillard)
876      - VST bugfix: instrument loading hang and crashed the host when      - VST bugfix: instrument loading hang and crashed the host when
877        the plugin was loaded a second time (#174)        the plugin was loaded a second time (#174)
878      - plugin bugfix: instrument loading hang when the plugin was      - plugin bugfix: instrument loading hang when the plugin was
# Line 266  Version CVS HEAD (?) Line 892  Version CVS HEAD (?)
892        the VST and AU plugins        the VST and AU plugins
893      - LV2: fixed save/restore of SFZ state (patch by David Robillard)      - LV2: fixed save/restore of SFZ state (patch by David Robillard)
894      - LV2: made LV2 plugin buildable on Windows and Mac      - LV2: made LV2 plugin buildable on Windows and Mac
895        - VST: implemented retrieval and switching of programs using the
896          sampler's internal MIDI instrument mapping system
897    
898      * Instrument editor interface:
899        - Changed instrument editor plugin interface, providing additional
900          informations like the EngineChannel for which the instrument editor was
901          spawned for. This allows the instrument editors to interact more actively
902          with the sampler.
903    
904    * MIDI driver:    * MIDI driver:
905      - ALSA MIDI driver supports now "NAME" device parameter, for overriding      - ALSA MIDI driver supports now "NAME" device parameter, for overriding
# Line 274  Version CVS HEAD (?) Line 908  Version CVS HEAD (?)
908        there is no reason for this limit        there is no reason for this limit
909      - MME: fixed memory handling bug found with cppcheck      - MME: fixed memory handling bug found with cppcheck
910      - MME: removed compiler warning      - MME: removed compiler warning
911        - CoreMIDI: implemented driver specific port parameter "CORE_MIDI_BINDINGS",
912          which allows to retrieve the list of CoreMIDI clients / ports and to connect
913          to them a la JACK, via the usual sampler APIs
914        - CoreMIDI: added driver specific port parameter "AUTO_BIND", if enabled
915          the driver will automatically connect to other CoreMIDI clients' ports
916          (e.g. external MIDI devices being attached to the Mac)
917        - added support for MIDI note on velocity filter
918        - CoreMIDI: fixed memory deallocation error
919        - Fixed variable underflow in VirtualMidiDevice, which caused graphical
920          virtual keyboards in frontends / instrument editors being stuck.
921        - Bugfix in VirtualMidiDevice: process note on with velocity 0 as note off.
922        - Implemented missing handling of MIDI "running status".
923        - CoreMIDI fix: a MIDIPacket can contain more than one event per packet.
924        - MME bugfix: driver wasn't closed properly
925        - CoreMIDI: automatically connect to all input sources by default (driver
926          parameter "AUTO_BIND").
927        - CoreMIDI: fixed auto bind feature to CoreMIDI ports that go online
928        - CoreMIDI: fixed minor memory leak
929    
930    * audio driver:    * audio driver:
931      - ASIO driver fixes for newer gcc versions (fix from PortAudio)      - ASIO driver fixes for newer gcc versions (fix from PortAudio)
932        - JACK audio: react on sample rate changes.
933        - JACK audio: react on buffer size changes.
934        - JACK audio: jack_port_get_buffer() was cached and called outside
935          RT context.
936        - ASIO driver: removed compiler warnings
937        - CoreAudio: fixed minor error handling bug
938        - ASIO driver: be more verbose when no ASIO card could be found (fixes #203)
939        - JACK audio: return the JACK server's current sample rate as default value
940          for audio device parameter "SAMPLERATE" (fixes #166).
941    
942    * LSCP server:    * LSCP server:
943      - added support for sending MIDI CC messages via LSCP command      - added support for sending MIDI CC messages via LSCP command
# Line 314  Version CVS HEAD (?) Line 975  Version CVS HEAD (?)
975      - added LSCP commands "SUBSCRIBE EFFECT_INSTANCE_COUNT",      - added LSCP commands "SUBSCRIBE EFFECT_INSTANCE_COUNT",
976        "SUBSCRIBE EFFECT_INSTANCE_INFO", "SUBSCRIBE SEND_EFFECT_CHAIN_COUNT",        "SUBSCRIBE EFFECT_INSTANCE_INFO", "SUBSCRIBE SEND_EFFECT_CHAIN_COUNT",
977        "SUBSCRIBE SEND_EFFECT_CHAIN_INFO"        "SUBSCRIBE SEND_EFFECT_CHAIN_INFO"
978        - provide comprehensive error messages on LSCP syntax errors
979          (suggesting expected next non-terminal symbols)
980        - Fixed client connection not being closed after network errors.
981    
982      * LSCP shell:
983        - Added support for auto correction of obvious and trivial syntax mistakes.
984        - Added support for auto completion by tab key.
985        - Show currently available auto completion while typing.
986        - Added support for browsing command history with up / down keys.
987        - Show all possible next symbols immediately right to the current command
988          line while typing (no double tab required for this feature, as it would
989          be the case in other shells).
990        - Added support for moving cursor left/right with arrow keys.
991        - Added support for built-in LSCP reference documentation, which will
992          automatically show the relevant LSCP reference section on screen as soon
993          as one specific LSCP command was detected while typing on the command
994          line.
995    
996      * Real-time instrument scripts:
997        - Implemented built-in script array variable %CC.
998        - Implemented built-in script int variable $CC_NUM.
999        - Implemented built-in script int variable $EVENT_NOTE.
1000        - Implemented built-in script int variable $EVENT_VELOCITY.
1001        - Implemented built-in script constant variable $VCC_MONO_AT.
1002        - Implemented built-in script constant variable $VCC_PITCH_BEND.
1003        - Implemented execution of script event handler "init".
1004        - Implemented execution of script event handler "controller".
1005        - Implemented execution of script event handler "note".
1006        - Implemented execution of script event handler "release".
1007        - Implemented built-in script function "play_note()" (only two of the
1008          max. four function arguments are currently implemented yet though).
1009        - Implemented built-in script int variable $EVENT_ID.
1010        - Implemented built-in script function "ignore_event()"
1011        - Implemented built-in script function "ignore_controller()" (may have one
1012          or no argument).
1013        - Implemented built-in script function "set_controller()".
1014        - Added extended script VM for the Gigasampler/GigaStudio format sampler
1015          engine, which extends the general instrument script VM with Giga format
1016          specific variables and functions.
1017        - Giga format scripts: added built-in script int constant variables
1018          $GIG_DIM_CHANNEL, $GIG_DIM_LAYER, $GIG_DIM_VELOCITY, $GIG_DIM_AFTERTOUCH,
1019          $GIG_DIM_RELEASE, $GIG_DIM_KEYBOARD, $GIG_DIM_ROUNDROBIN, $GIG_DIM_RANDOM,
1020          $GIG_DIM_SMARTMIDI, $GIG_DIM_ROUNDROBINKEY, $GIG_DIM_MODWHEEL,
1021          $GIG_DIM_BREATH, $GIG_DIM_FOOT, $GIG_DIM_PORTAMENTOTIME, $GIG_DIM_EFFECT1,
1022          $GIG_DIM_EFFECT2, $GIG_DIM_GENPURPOSE1, $GIG_DIM_GENPURPOSE2,
1023          $GIG_DIM_GENPURPOSE3, $GIG_DIM_GENPURPOSE4, $GIG_DIM_SUSTAIN,
1024          $GIG_DIM_PORTAMENTO, $GIG_DIM_SOSTENUTO, $GIG_DIM_SOFT,
1025          $GIG_DIM_GENPURPOSE5, $GIG_DIM_GENPURPOSE6, $GIG_DIM_GENPURPOSE7,
1026          $GIG_DIM_GENPURPOSE8, $GIG_DIM_EFFECT1DEPTH, $GIG_DIM_EFFECT2DEPTH,
1027          $GIG_DIM_EFFECT3DEPTH, $GIG_DIM_EFFECT4DEPTH, $GIG_DIM_EFFECT5DEPTH.
1028        - Giga format scripts: Implemented built-in script function
1029          "gig_set_dim_zone(event_id, dimension, zone)".
1030        - Implemented built-in script int array variable %KEY_DOWN.
1031        - Implemented built-in script function "abs()".
1032        - Implemented built-in script function "random()".
1033        - Implemented built-in script function "num_elements()".
1034        - Implemented built-in script function "note_off()".
1035        - Implemented built-in script function "set_event_mark()".
1036        - Implemented built-in script function "delete_event_mark()".
1037        - Implemented built-in script function "by_marks()".
1038        - Added built-in script int const variables $MARK_1 to $MARK_28.
1039        - Built-in script functions "ignore_event()", "note_off()" and
1040          "gig_set_dim_zone()" now also accept an array of event IDs as argument
1041          (i.e. return value of new script function "by_marks()").
1042        - Pass/preserve polyphonic variable data from respective "note" event
1043          handler to "release" event handler.
1044        - Fixed crash when using built-in script function "by_marks()".
1045    
1046    * Bug fixes:    * Bug fixes:
1047      - 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 355  Version CVS HEAD (?) Line 1083  Version CVS HEAD (?)
1083        introduced in previous fix)        introduced in previous fix)
1084      - fixed crash when a channel received a program change while      - fixed crash when a channel received a program change while
1085        playing a note in a key group        playing a note in a key group
1086        - fixed erroneous error message piping in VoiceBase.h
1087          (labelled "Disk stream not available in time")
1088        - Update effects on sample rate & period size changes (to avoid
1089          crashes and noise on such transitions).
1090        - ignore missing LADSPA paths without ignoring valid LADSPA paths
1091          (fixes #208)
1092        - Fixed bug in LSCP grammar definition which caused a statement like
1093          "GET SERVER INFOasdf\n" to be accepted as valid statement (was so far
1094          practically irrelevant, however it caused problems with the new LSCP
1095          shell's auto completion feature).
1096        - Fixed MIDI program change messages being ignored if quickly executed
1097          after each other (fixes #231).
1098    
1099  Version 1.0.0 (31 July 2009)  Version 1.0.0 (31 July 2009)
1100    
# Line 419  Version 1.0.0 (31 July 2009) Line 1159  Version 1.0.0 (31 July 2009)
1159      - Windows: add the installation directory to the DLL search path      - Windows: add the installation directory to the DLL search path
1160        when loading an editor plugin (solves problems with VST and        when loading an editor plugin (solves problems with VST and
1161        gigedit on systems with other GTK versions installed)        gigedit on systems with other GTK versions installed)
1162        - updated linuxsampler man page
1163    
1164    * audio driver:    * audio driver:
1165      - removed the nonsense audio channel constraint (which was hard coded to      - removed the nonsense audio channel constraint (which was hard coded to

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