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revision 1922 by persson, Fri Jun 26 18:55:02 2009 UTC revision 3715 by schoenebeck, Sun Jan 12 17:07:34 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    
51      * Real-time instrument scripts:
52        - Added method ScriptVM::setExitResultEnabled() which allows to
53          explicitly enable the built-in exit() function to optionally accept
54          one function argument; the value of the passed exit() function
55          argument will then become available by calling
56          VMExecContext::exitResult() after script execution.
57        - 64 bit support for NKSP integer scripts variables (declare $foo).
58        - Variable names, function names and preprocessor condition names must start
59          with a regular character (a-z or A-Z); starting them with a digit or
60          underscore is not allowed.
61        - NKSP parser fix: equal comparison operator "=" and not equal comparison
62          operator "#" must only accept integer operands.
63        - NKSP language: Implemented support for standard units like Hertz, seconds,
64          Bel including support for metric unit prefixes; so one can now e.g.
65          conveniently use numbers in scripts like "5us" meaning "5 microseconds",
66          or e.g. "12kHz" meaning "12 kilo Hertz", or e.g. "-14mdB" meaning
67          "minus 14 Millidecibel", or e.g. "28c" meaning "28 cents" (for tuning).
68        - NKSP language: Introduced "final" operator "!" which is specifically
69          intended for synthesis parameter values to denote that the synthesis
70          parameter value is intended to be the "final" value for that synthesis
71          parameter that should explicitly be used by the engine and thus causing
72          the sampler engine to ignore all other modulation sources for the same
73          synthesis parameter (like e.g. LFO, EG); by simply prefixing a value,
74          variable or formula with this new "!" operator the expression is marked as
75          being "final".
76        - NKSP script editor API: Added support for detecting standard unit tokens
77          and their potential metric prefix token.
78        - NKSP language: Added support for NKSP real number literals and
79          arithmetic operations on them (e.g. "(3.9 + 2.9) / 12.3 - 42.0").
80        - NKSP language: Added support for NKSP real number (floating point) script
81          variables (declare ~foo).
82        - NKSP language: Added support for NKSP real number (floating point) array
83          script variables (declare ?foo[]).
84        - Built-in script function "message()" accepts now real number argument as
85          well.
86        - Added built-in script function "real_to_int()" and its short hand form
87          "int()" for casting from real number to integer in NKSP scripts.
88        - Added built-in script function "int_to_real()" and its short hand form
89          "real()" for casting from integer to real number in NKSP scripts.
90        - Allow built-in exit() function to potentially accept real number type
91          argument as well.
92        - Built-in script functions may have a different return type depending on
93          the arguments passed to the function.
94        - Built-in script function "abs()" optionally accepts and returns real
95          number.
96        - Built-in script functions "min()" and "max()" optionally accept real
97          number arguments and return real number as result in that case.
98        - NKSP VM API: Allow units and 'final'ness to be returned as result from
99          built-in functions (added methods VMFunction::returnUnitType() and
100          VMFunction::returnsFinal() for that purpose which must be implemented by
101          built-in function implementations).
102        - NKSP language: Allow metric unit prefixes of numeric scalar and array
103          variables to be changed freely at runtime (unlike unit types like Hz etc.
104          which are still sticky, parse-time features of variables which cannot be
105          changed at runtime for the intentional sake of determinism).
106        - NKSP language: 'final' values are prohibited for array variables for now
107          (attempt causes a parsers error).
108        - NKSP language: expressions with unit types (e.g. Hz) are prohibited for
109          conditions of runtime control structures like if(), while(), select()
110          (attempt causes a parser error).
111        - NKSP VM API: Allow built-in functions to perform their own, individual
112          parse time checks of arguments going to be passed to the function at
113          runtime (added method VMFunction::checkArgs() for that purpose).
114        - NKSP language: raise parser warning if only one operand of binary
115          operators (like logical 'or' comparison) contain a 'final' value (because
116          it would always yield in a 'final' result in such cases).
117        - NKSP language: Allow comparison (=, #, <, >, <=, >=) of values with
118          different metric unit prefixes, which will behave as expected (e.g.
119          result of expression '1000us < 2ms' is true).
120        - NKSP language: Allow adding values with different metric unit prefixes
121          (e.g. result of expression '100Hz + 5kHz' is '5100Hz').
122        - NKSP language: Allow subtracting values with different metric unit
123          prefixes (e.g. result of expression '1ms - 20us' is '980us').
124        - NKSP language: Allow multiplying with any metric unit prefixes
125          (e.g. result of expression '2k * 3ms' is '6s'), however multiplications
126          with unit types on both sides (e.g. '2s * 2s') is still prohibited since
127          we don't have any considerable practical use for a term like '4s^2'
128          (hence any attempt multiplying two unit types still causes parser error).
129        - NKSP language: Allow dividing by any metric unit prefixes and allow
130          division of same unit type on both sides (e.g. expression '8kHz / 1000Hz'
131          yields in unit free result '8'). So this is now a way to cast units away
132          e.g. for passing the result to other expressions, certain function calls
133          or variables which are not accepting any units (or that specific unit).
134        - NKSP language: integer arrays and real number arrays can now be converted
135          to strings (e.g. for dumping their content with message() calls for
136          script debugging purposes).
137        - NKSP language: expressions and variables with units are now correctly
138          casted to strings (e.g. with message() calls).
139        - NKSP language: comparing real numbers for equalness (e.g. '~foo = 3.1') or
140          unequalness (e.g. '~foo # 3.1') is now less strict and takes the expected
141          floating point tolerances into account.
142        - NKSP VM API: Added methods VMScalarNumberExpr::evalCastInt() and
143          VMScalarNumberExpr::evalCastReal().
144        - NKSP VM API: Added base class 'VMNumberArrayExpr' for classes
145          'VMIntArrayExpr' and 'VMRealArrayExpr'.
146        - NKSP VM API: replaced all unitPrefix() (parse time) methods by
147          unitFactor() (runtime) methods.
148        - Built-in function "exit()" supports now returning units and 'final'ness
149          for test cases.
150        - The following built-in functions support now units as well: "abs()",
151          "random()", "inc()", "dec()", "in_range()", "min()", "max()",
152          "real_to_int()", "int()", "int_to_real()" and "real()".
153        - Built-in functions "array_equal()", "search()" and "sort()" support now
154          real number arrays (correctly) as well.
155        - Added individual parse time checks of arguments to be passed to built-in
156          functions "random()", "inc()", "dec()", "in_range()", "min()", "max()",
157          "array_equal()" and "search()" specific for their individual purposes.
158        - NKSP VM refactoring: Renamed all methods, functions and classes matching
159          pattern *ScalarNumber* to simply *Number* (that is i.e. classes
160          VMScalarNumberExpr -> VMNumberExpr, ScalarNumberExpr -> NumberExpr,
161          ScalarNumberVariable -> NumberVariable, ScalarNumberBinaryOp ->
162          NumberBinaryOp, VMScalarNumberResultFunction -> VMNumberResultFunction,
163          method VMExpr::asScalarNumberExpr() -> VMExpr::asNumber(), function
164          isScalarNumber() -> isNumber()).
165        - NKSP VM API: Added 4 overridden methods to class VMNumberExpr:
166          evalCastInt(MetricPrefix_t), evalCastInt(MetricPrefix_t,MetricPrefix_t),
167          evalCastReal(MetricPrefix_t), evalCastReal(MetricPrefix_t,MetricPrefix_t)
168          as convenient methods for automatically converting values to expected
169          metric value basis.
170        - Built-in function "wait()" accepts now both integers and real numbers as
171          argument.
172        - NKSP VM API cleanup: Get rid of legacy method
173          VMFunction::argType(vmint iArg) which was already superseded by its new
174          replacement VMFunction::acceptsArgType(vmint iArg, ExprType_t type).
175        - NKSP parser: if wrong argument type was passed to a built-in function and
176          that built-in function accepts more than one data type for the argument,
177          then show all supported data types as parser error message.
178        - Built-in function "play_note()" accepts now real numbers and seconds as
179          unit type as well for its 3rd and 4th function arguments.
180        - The following built-in functions accept now real numbers as well for their
181          2nd function argument: "change_vol()", "change_tune()", "change_cutoff()",
182          "change_attack()", "change_decay()", "change_release()",
183          "change_sustain()", "change_cutoff_attack()", "change_cutoff_decay()",
184          "change_cutoff_sustain()", "change_cutoff_release()",
185          "change_amp_lfo_freq()", "change_cutoff_lfo_freq()",
186          "change_pitch_lfo_freq()", "change_vol_time()", "change_tune_time()",
187          "change_pan_time()", "fade_in()", "fade_out()", "change_play_pos()".
188        - Fixed built-in function "change_play_pos()" not having accepted metric
189          prefixes at all.
190        - Fixed the following built-in functions having misinterpreted values given
191          with unit type (for their 2nd argument) as if they were relative values
192          (that is as if they were passed without a unit type): "change_attack()",
193          "change_decay()", "change_release()", "change_cutoff_attack()",
194          "change_cutoff_decay()", "change_cutoff_release()".
195        - Fixed the following built-in functions having applied completely wrong
196          'final' values: "change_sustain()", "change_cutoff_sustain()" (since the
197          respective EGs being their modulation sink assume uint data type with
198          value range 0..1000 instead of 0.0..1.0.
199        - Added individual parse-time checks of function arguments for the following
200          built-in functions: "play_note()", "note_off()", "set_event_mark()",
201          "delete_event_mark()", "by_marks()", "change_cutoff()", "change_attack()",
202          "change_decay()", "change_release()", "change_cutoff_attack()",
203          "change_cutoff_decay()", "change_cutoff_release()",
204          "change_amp_lfo_freq()", "change_cutoff_lfo_freq()",
205          "change_pitch_lfo_freq()", "change_vol_time()", "change_tune_time()" and
206          "change_pan_time()".
207        - Don't abort function call if unit type was used and at the same time
208          'final' operator was omitted for the primary value argument of the
209          following built-in functions: "change_cutoff()", "change_attack()",
210          "change_decay()", "change_release()", "change_cutoff_attack()",
211          "change_cutoff_decay()", "change_cutoff_release()",
212          "change_amp_lfo_freq()", "change_cutoff_lfo_freq()",
213          "change_pitch_lfo_freq()", "change_vol_time()", "change_tune_time()",
214          "change_pan_time()", instead imply 'final'ness at runtime and raise an
215          appropriate parser warning at parse time.
216        - Added built-in real number functions "round()", "ceil()", "floor()",
217          "sqrt()", "log()", "log2()", "log10()", "exp()", "pow()", "sin()",
218          "cos()", "tan()", "asin()", "acos()", "atan()".
219        - Added built-in script real number constant "~NI_MATH_PI".
220        - Added built-in script real number constant "~NI_MATH_E".
221        - NKSP language: Allow unary '+' operator.
222        - Added built-in script functions "msb()" and "lsb()".
223        - NKSP language: Added support for RPN event handler
224          ("on rpn ... end on" in instrument scripts).
225        - NKSP language: Added support for NRPN event handler
226          ("on nrpn ... end on" in instrument scripts).
227        - Added built-in read-only variables "$RPN_ADDRESS" and "$RPN_VALUE" which
228          may be read from the new RPN/NRPN script handlers to get the (N)RPN
229          parameter that had been changed and its new value.
230        - Added built-in const variables "$NI_CB_TYPE_RPN" and "$NI_CB_TYPE_NRPN"
231          which are identifying the new (N)RPN handlers as such at script runtime.
232        - Implemented built-in script function "set_rpn()".
233        - Implemented built-in script function "set_nrpn()".
234        - Fix: built-in functions returning an array type were broken and caused a
235          crash when the built-in function's (supposed to be array) result value was
236          used by the script VM.
237        - Removed upper value constraint for 2nd argument of built-in functions
238          "change_amp_lfo_freq()", "change_cutoff_lfo_freq()",
239          "change_pitch_lfo_freq()","change_reso()", "change_cutoff()",
240          "change_amp_lfo_depth()", "change_cutoff_lfo_depth()" and
241          "change_pitch_lfo_depth()", to allow e.g. passing value 2000000 to double
242          the LFO frequency / resonance / cutoff frequency.
243    
244      * test cases:
245        - Fixed compiler errors in test cases.
246        - Updated README for how to compile & run test cases.
247        - Updated test case
248          MutexTest::testDoubleLockStillBlocksConcurrentThread() to latest
249          expected behaviour of the Mutex class implementation (recursive
250          mutex type).
251        - Added test cases for NKSP core language aspects and core built-in
252          functions.
253        - Fixed thread tests segfaulting on Linux.
254        - NKSP: Added real number test cases for built-in functions exit(),
255          int_to_real(), real(), real_to_int() and int(), as well as for the
256          plus, minus and negate language operators.
257        - Added massive amount of NKSP test cases for standard measuring units and
258          'final' operator usage cases.
259        - Added NKSP test cases for (floating point tolerance aware) real number
260          equalness / unequalness comparison.
261        - Added NKSP int array and real array tests for value assignment and
262          initialization of arrays.
263        - Added NKSP test cases for built-in functions "round()", "ceil()",
264          "floor()", "sqrt()", "log()", "log2()", "log10()", "exp()", "pow()",
265          "sin()", "cos()", "tan()", "asin()", "acos()", "atan()".
266        - Added NKSP test cases for unary '+' operator.
267        - Added NKSP test cases for core built-in variables.
268    
269      * GigaStudio/Gigasampler format engine:
270        - LFOTriangleIntMath and LFOTriangleIntAbsMath: Fixed FlipPhase=true
271          behaviour for start_level_mid.
272        - Changed LFO start levels: LFO1 and LFO2 both to mid, LFO3 to max. start
273          level (see discussion "GigaStudio LFO compatibility" on mailing list
274          from 2019-09-26 for details).
275        - Changed default wave form for all 3 LFOs to sine (instead of triangle;
276          see discussion "GigaStudio LFO compatibility" on mailing list from
277          2019-09-26 for details).
278        - Format extension: Added support for different LFO wave forms (currently
279          either sine [default], triangle, saw or square).
280        - Format extension: Added support for LFO phase displacement (0°..360°).
281        - Format extension: Added support for flipping LFO polarity on LFO 3
282          (in the original gig format this was only available for LFO 1 and LFO 2).
283        - Format extension: Support for additional filter types:
284          lowpass 1/2/4/6-pole, highpass 1/2/4/6-pole, bandpass 2-pole,
285          bandreject 2-pole.
286    
287      * SFZ format engine:
288        - Fixed support for regions with loccN/hiccN conditions on more than one
289          MIDI controller.
290    
291      * Benchmarks:
292        - Fixed benchmarks/triang.cpp falsely having favoured "int math abs"
293          algorithm (since result of 2nd run was not accumulated).
294        - Added benchmark for saw wave (benchmarks/saw.cpp).
295        - Added benchmark for sine wave (benchmarks/sine.cpp).
296        - Added benchmark for square wave (benchmarks/square.cpp).
297        - Increased amount of benchmarks runs by factor 6 to achieve benchmark times
298          which are large enough on modern systems.
299    
300    Version 2.1.1 (27 Jul 2019)
301    
302      * Real-time instrument scripts:
303        - Fixed behavior of built-in NKSP functions change_sustain(),
304          change_cutoff_attack(), change_cutoff_decay(), change_cutoff_sustain()
305          and change_cutoff_release().
306    
307      * general changes:
308        - Only play release trigger samples on sustain pedal up if this behaviour
309          was explicitly requested by the instrument (otherwise only on note-off).
310        - Fixed compiler warnings.
311        - Fixed compilation error when cross-compiling to Mac.
312        - FX Sends: Provide more useful error messages on routing problems
313          (see bug #169).
314        - LSCP doc: Be more clear describing the two distinct approaches
315          of using external vs. internal effects (see bug #169).
316        - "optional" class: Fixed comparison operators.
317    
318      * Gigasampler/GigaStudio format engine:
319        - Format extension: If requested by instrument then don't play release
320          trigger sample on note-off events.
321    
322      * SFZ format engine:
323        - Fixed memory leak when releasing samples
324          (fixes bug #307, patch by Jacek Roszkowski)
325        - Fixed potential crash when a sample is shared by more than one region
326          (fixes bug #308, patch by Jacek Roszkowski).
327        - Opcode 'sample': Added support for built-in sample '*silence'
328          (fixes bug #310, patch by Jacek Roszkowski).
329    
330    Version 2.1.0 (25 Nov 2017)
331    
332      * SFZ format engine:
333        - added support for <global>, <master> and #define (patch by Alby M)
334        - Removed code duplication in SFZ file loading code.
335        - Added support for sfz extension opcode 'script' which may be used to
336          load real-time instrument script file (NKSP script language).
337        - Implemented opcode set_ccN (initial patch by Giovanni Senatore).
338        - Fixed unintended volume fade-in of voices under certain conditions.
339        - sfz parser: allow missing space between header and opcode
340    
341      * Gigasampler/GigaStudio format engine:
342        - Fixed clicks and pumping noise with Lowpass Turbo filter on very low
343          cutoff settings.
344        - Got rid of resembling an ancient GSt misbehavior which did not pitch at
345          all if an up-pitch of more than 40 semi tones was requested (I don't
346          think there is any stock gig sound that requires this behavior to
347          resemble its original sound).
348        - Added support for controlling whether the individual EGADSR stages may
349          be aborted (as LinuxSampler extension to the original GigaStudio 4
350          format).
351    
352      * general changes:
353        - fixed printf type errors (mostly in debug messages)
354        - use unique_ptr instead of auto_ptr when building with C++11
355        - Added RTAVLTree class which is a real-time safe ordered multi-map, thus
356          allowing to sort data efficiently in real-time safe manner.
357        - RTList class: added methods for moving/inserting elements to arbitrary
358          position within a list.
359        - RTList class: added method fromPtr() for creating an Iterator object from
360          a raw element pointer.
361        - Attempt to partly fix resetting engine channels vs. resetting engine, an
362          overall cleanup of the Reset*(), ConnectAudioDevice(),
363          DisconnectAudioDevice() API methods would still be desirable though,
364          because the current situation is still inconsistent and error prone.
365        - Active voices are now internally grouped to "Note" objects, instead of
366          being directly assigned to a keyboard key. This allows more fine graded
367          processing of voices, which is i.e. required for certain instrument
368          script features.
369        - Fix: Release trigger voices were not spawned on sustain pedal up
370          (CC #64) events.
371        - Fix: Release trigger voices can now also distinguish correctly between
372          note-off and sustain pedal up events.
373        - All engines: Increased ramp speed of volume smoother and pan smoother
374          (while slow rate of crossfade smoother is preserved) to allow quick
375          volume and pan changes by instrument scripts for instance.
376        - gig/sf2/sfz: Fixed aftertouch channel pressure events being processed
377          properly and thus were ignored for certain uses.
378        - Added new C++ API method
379          VirtualMidiDevice::SendChannelPressureToSampler().
380        - windows, 32-bit: fixed potential crashes by making sure the stack in
381          sub threads is 16-byte aligned
382        - fixed numerous compiler warnings
383        - Fixed invalid (note-on) event ID being assigned to new Note objects.
384        - Revised fundamental C++ classes "Thread", "Mutex" and "Condition" which
385          fixes potential undefined behavior.
386        - Fixed Note object leak when triggering notes on keys which did not
387          have a valid sample mapped (fixes bug #252).
388        - Fixed compilation errors when compiling with CONFIG_DEVMODE enabled.
389        - linuxsampler binary fix: option --create-instruments-db ignored
390          subsequent optional argument due to glibc's implementation oddity
391          which expects a "=" sign, but no space between them.
392    
393      * packaging changes:
394        - removed unnecessary dependency to libuuid
395          (originated by libgig's usage of it)
396        - Automake: set environment variable GCC_COLORS=auto to allow GCC to
397          auto detect whether it (sh/c)ould output its messages in color.
398        - Debian: Fixed packaging error about invalid "Source-Version"
399          substitution variable.
400        - Debian: Raised Debian compatibility level to Debian 9 "Stretch".
401        - Debian: Added build dependency to libsqlite3-dev for building
402          linuxsampler with instruments DB support.
403    
404      * Real-time instrument scripts:
405        - Implemented scheduler for delayed MIDI events and for suspended scripts.
406        - Built-in script function "wait()": implemented support for function's
407          "duration-us" argument, thus scripts using this function are now
408          correctly resumed after the requested amount of microseconds.
409        - Built-in script function "play_note()": implemented support for
410          function's "duration-us" argument, thus notes triggered with this
411          argument are now correctly released after the requested amount of
412          microseconds.
413        - Fix: script events were not cleared when engine channel was reset,
414          potentially causing undefined behavior.
415        - Fixed crash which happened when trying to reference an undeclared
416          variable.
417        - Built-in script function "play_note()": Added support for passing
418          special value -1 for "duration-us" argument, which will cause the
419          triggered note to be released once the original note was released.
420        - Instrument script classes now exported with the liblinuxsampler C++ API.
421        - Added new API method ScriptVM::syntaxHighlighting() which provides
422          a convenient syntax highlighting backend for external instrument
423          script editor applications.
424        - Added new C++ API class "ScriptVMFactory".
425        - Extended parser issues to provide not only first line and first
426          column, but also last line and last column of issue (thus marking
427          the precise span of the issue within the source code).
428        - Reload script automatically after being modified by an instrument
429          editor.
430        - NKSP language grammar correction: allow empty event handler bodies
431          like "on note end on".
432        - Implemented built-in script function "change_vol()".
433        - Implemented built-in script function "change_tune()".
434        - Implemented built-in script function "change_pan()".
435        - Implemented built-in script function "change_cutoff()".
436        - Implemented built-in script function "change_reso()".
437        - Implemented built-in script function "event_status()".
438        - Added built-in script constants "$EVENT_STATUS_INACTIVE" and
439          "$EVENT_STATUS_NOTE_QUEUE" both for being used as flags for
440          "event_status()" function.
441        - NKSP language: Added support for bitwise operators ".or.", ".and."
442          and ".not.".
443        - NKSP language scanner: Fixed IDs matching to require at least one
444          character (i.e. when matching function names or variable names).
445        - NKSP language scanner: disabled unusued rules.
446        - Fixed behavior of play_note() and note_off() functions which must
447          be distinguished engine internally from "real" MIDI note on/off
448          events in order to avoid misbehaviors like hanging notes.
449        - Implemented built-in script variable "$KSP_TIMER".
450        - Implemented built-in script variable "$NKSP_REAL_TIMER".
451        - Implemented built-in script variable "$NKSP_PERF_TIMER".
452        - Implemented built-in script variable "$ENGINE_UPTIME".
453        - Implemented built-in script function "inc()".
454        - Implemented built-in script function "dec()".
455        - NKSP language fix: division expressions were evaluated too often.
456        - NKSP language fix: string concatenation operator was right
457          associative instead of left (to right).
458        - NKSP language correction: allow empty statements in entire language
459          (i.e. "if end if").
460        - Implemented built-in script function "stop_wait()".
461        - Implemented built-in script variable "$NI_CALLBACK_ID".
462        - Implemented built-in script variable "$NI_CALLBACK_TYPE".
463        - Implemented built-in script variable "$NKSP_IGNORE_WAIT".
464        - Added support for read-only built-in variables (respectively
465          handled by the script parser).
466        - Added built-in script constant "$NI_CB_TYPE_INIT".
467        - Added built-in script constant "$NI_CB_TYPE_NOTE".
468        - Added built-in script constant "$NI_CB_TYPE_RELEASE".
469        - Added built-in script constant "$NI_CB_TYPE_CONTROLLER".
470        - NKSP Language: Added support for user defined script functions.
471        - Implemented built-in script function "change_attack()".
472        - Implemented built-in script function "change_decay()".
473        - Implemented built-in script function "change_release()".
474        - Fixed all change_*() built-in script functions to apply their
475          synthesis parameter changes immediately in case the respective note
476          was triggered at the same time, instead of scheduling the parameter
477          change, especially because it would cause some parameter types's
478          changes either to be ramped (i.e. change_vol()) or other types even
479          to have not effect at all (i.e. change_attack()).
480        - Implemented built-in script function "sh_left()".
481        - Implemented built-in script function "sh_right()".
482        - Implemented built-in script function "min()".
483        - Implemented built-in script function "max()".
484        - NKSP Fix: "init" event handler was not always executed when a script
485          was loaded.
486        - NKSP built-in wait() script function: abort script execution if
487          a negative or zero wait time was passed as argument (since this is
488          a common indication of a bug either of the script or even of the
489          engine, which could lead to RT instability or even worse).
490        - ScriptVM: Implemented automatic suspension of RT safety
491          threatening scripts.
492        - Provide more user friendly error messages on syntax errors.
493        - Fixed NKSP parser warning "Not a statement" when assigning an
494          initializer list to an array variable.
495        - Implemented built-in script array variable "%ALL_EVENTS".
496        - Implemented built-in script function "in_range()".
497        - Implemented built-in script function "change_amp_lfo_depth()".
498        - Implemented built-in script function "change_amp_lfo_freq()".
499        - Implemented built-in script function "change_pitch_lfo_depth()".
500        - Implemented built-in script function "change_pitch_lfo_freq()".
501        - Implemented built-in script function "change_vol_time()".
502        - Implemented built-in script function "change_tune_time()".
503        - Implemented built-in script function "fade_in()".
504        - Implemented built-in script function "fade_out()".
505        - Fixed acceptance of wrong data type of parameters passed to built-in
506          script functions "change_vol()", "change_tune()", "change_pan()",
507          "change_cutoff()", "change_reso()", "change_attack()", "change_decay()",
508          "change_release()", "change_amp_lfo_depth()", "change_amp_lfo_freq()",
509          "change_pitch_lfo_depth()" and "change_pitch_lfo_freq()".
510        - Added built-in script function "get_event_par()" and implemented some
511          of its possible parameter selections.
512        - Added built-in script function "set_event_par()" and implemented some
513          of its possible parameter selections.
514        - Fixed a bunch of scheduler time related bugs.
515        - Fixed polyphonic variables not being reset to zero after usage.
516        - Built-in "ignore_event()" function: argument is now optional, like with
517          built-in function "ignore_controller()".
518        - Implemented built-in script function "change_velo()".
519        - Implemented built-in script function "change_note()".
520        - Adjusted behavior of "change_vol()" and "change_tune()" to a more
521          intuitive behavior if used in combination with "change_vol_time()" or
522          "change_tune_time()" respectively: now tuning/volume changes are only
523          assigned (without delay) immediately to a new note if the respective
524          timing function has not been called before, otherwise the volume/tuning
525          changes are automatically faded (before, only the event's time stamp was
526          relevant).
527         - Implemented built-in script function "array_equal()".
528         - Implemented built-in script function "search()".
529         - Implemented built-in script function "sort()".
530         - NKSP Fix: Never suspend "init" event handlers.
531         - Implemented built-in script function "same_region()" (currently only
532           available for gig format engine).
533         - Added built-in script constant "$NKSP_LINEAR".
534         - Added built-in script constant "$NKSP_EASE_IN_EASE_OUT".
535         - Implemented built-in script function "change_vol_curve()".
536         - Implemented built-in script function "change_tune_curve()".
537         - built-in "play_note()" function now supports a sample playback start
538           offset with argument 3, where special value -1 means to use the regular
539           sample offset as defined by the instrument file.
540         - Built-in array variable %KEY_DOWN[] is now a read-only variable.
541         - Built-in variable $EVENT_NOTE is now a read-only variable.
542         - Built-in variable $EVENT_VELOCITY is now a read-only variable.
543         - built-in "play_note()" function now accepts -2 for its fourth argument
544           (note duration) which means the life time of the note shall be sticked
545           to the requested note number of argument 1.
546         - Fix: built-in "play_note()" function now returns 0 as result value if
547           -1 was passed for its fourth argument (note duration) and the respective
548           parent note is already gone.
549        - Implemented built-in script function "change_play_pos()".
550        - NKSP language: Added support for user declared const array variables.
551        - NKSP language: Raise parser warning if array variable is accessed with
552          an index that exceeds the array's size.
553        - NKSP language fix: Unknown characters were not handled correctly.
554        - NKSP language: Added support for "synchronized .. end synchronized"
555          code blocks.
556        - Implemented built-in script function "abort()" which allows to abort
557          another script handler by passing its callback ID.
558        - Fixed potential memory access bug and potential undefined behavior of
559          "init" event handlers.
560        - Print a time stamp along to each call of built-in function "message()".
561        - ScriptVM API: Added VMParserContext::preprocessorComments() which allows
562          to retrieve all code blocks filtered out by the preprocessor.
563        - Added built-in script function "fork()".
564        - Added built-in array variable %NKSP_CALLBACK_CHILD_ID[].
565        - Added built-in variable $NKSP_CALLBACK_PARENT_ID.
566        - Fixed potential crash when accessing dynamic built-in array variables.
567        - Added built-in script function "callback_status()".
568        - Added built-in constant $CALLBACK_STATUS_TERMINATED.
569        - Added built-in constant $CALLBACK_STATUS_QUEUE.
570        - Added built-in constant $CALLBACK_STATUS_RUNNING.
571        - Removed max. value limitation of built-in functions "change_attack()",
572          "change_decay()" and "change_release()" to i.e. allow passing 2000000
573          for doubling the respective time.
574        - NKSP script editor syntax highlighting API: Fixed app termination due
575          to a lexer start condition stack underrun.
576        - NKSP preprocessor: Fixed wrong behavior on nested USE_CODE_IF() and
577          USE_CODE_IF_NOT() preprocessor statements.
578        - NKSP: Added built-in preprocessor condition NKSP_NO_MESSAGE, which
579          can be set to disable all subsequent built-in "message()" function calls
580          on preprocessor level.
581        - Implemented built-in script function "change_sustain()".
582        - NKSP script editor syntax highlighting API: catch all fatal lexer errors,
583          to avoid the editor app to crash on ill-formed text input.
584        - Added built-in script function "change_pan_time()".
585        - Added built-in script function "change_pan_curve()".
586        - Added built-in script function "change_cutoff_attack()".
587        - Added built-in script function "change_cutoff_decay()".
588        - Added built-in script function "change_cutoff_sustain()".
589        - Added built-in script function "change_cutoff_release()".
590        - Added built-in script function "change_cutoff_lfo_depth()".
591        - Added built-in script function "change_cutoff_lfo_freq()".
592    
593      * Instruments DB:
594        - Fixed memory access bug of general DB access code which lead to
595          undefined behavior.
596        - Cleanup of instruments DB file creation and opening code.
597        - The instrument DB path of linuxsampler's --create-instruments-db argument
598          is now optional, if it is missing, then a default location is used.
599        - Added support for scanning SFZ (.sfz) files.
600        - Added support for scanning Sound Font (.sf2) files.
601        - Fixed undefined DB transaction behavior.
602    
603    Version 2.0.0 (15 July 2015)
604    
605      * packaging changes:
606        - fixed building with newer MinGW-w64
607        - Mac OS X: support the new dir for Core Audio SDK
608        - Mac OS X: fixed building outside source directory
609        - made sure all source files for hostplugins are included when
610          doing "make dist"
611        - removed empty directories left from the cvs to svn migration
612        - fixed compilation with gcc 4.6.1
613        - another "make dist" fix, for the LV2 plugin
614        - made --enable-pthread-testcancel default on Mac OS X
615        - minor Makefile fix for building lscpparser when build and source
616          directories are separate
617        - Mac OS X: made it possible to specify plugin installation dir to
618          configure
619        - Mac OS X: Makefile fix for the install-strip target
620        - fixed compilation with gcc 4.7
621        - fixed configure script error with old autoconf versions
622        - lsatomic.h: use gcc provided atomic functions if building with
623          gcc 4.7 and C++11
624        - modernized configure script
625        - fixed linkage error when building with
626          LDFLAGS="-Wl,--no-undefined" (#190)
627        - fixed compilation with Clang 3.2
628        - removed usage of deprecated Automake variable INCLUDES
629        - fixed building with C++11
630        - build fix: ChangeFlagRelaxed.h was missing in makefile
631        - build fix: libsndfile compiler flags were missing in some
632          makefiles
633        - fix for building with bison 3.0 (#202)
634        - Mac OS X: added temporary hack allowing to spawn gigedit as callback
635          on the process's main thread
636        - fixed build error on newer MinGW
637        - support building with older jack versions
638        - support building with spaces in vst sdk path
639        - enabled automake 'subdir-objects' option and moved external
640          source references (vst, au, asio) from makefiles to cpp files,
641          in order to get rid of warnings from automake 1.14
642    
643      * general changes:
644        - Refactoring: moved the independent code from
645          the Gigasampler format engine to base classes
646        - command line option '--profile' is currently disabled, since the
647          respective profiling code is currently broken
648        - Introduced support for optional environment variable
649          "LINUXSAMPLER_PLUGIN_DIR" which allows to override the directory
650          where the sampler shall look for instrument editor plugins
651          (patch by Luis Garrido, slightly modified).
652        - implemented Roland GS NRPN 1ArrH which allows to set volume per note
653        - implemented Roland GS NRPN 1CrrH which allows to set pan per note
654        - implemented Roland GS NRPN 1DrrH which allows to set reverb send per
655          note (in this implementation of the sampler its simply hard routed to
656          the 1st effect send of the sampler channel, no matter what the actual
657          effect type is)
658        - implemented Roland GS NRPN 1ErrH which allows to set chorus send per
659          note (in this implementation of the sampler its simply hard routed to
660          the 2nd effect send of the sampler channel, no matter what the actual
661          effect type is)
662        - implemented support for internal LADSPA effects
663        - raised limit of program change queue from 100 to 512
664          (as suggested by Alex Stone)
665        - implemented sine LFO, pulse LFO and saw LFO
666        - experimental support for per voice equalization
667        - added command line option --exec-after-init
668        - Introduced new C++ API method:
669          EngineChannel::InstrumentFileName(int index)
670          allowing to retrieve the whole list of files used for the loaded
671          instrument on an engine channel (a.k.a. part). Some GigaStudio
672          instruments for example are splitted over several files like
673          "Foo.gig", "Foo.gx01", "Foo.gx02", ...
674        - Added new C++ API method Sampler::GetGlobalMaxVoices().
675        - Added new C++ API method Sampler::GetGlobalMaxStreams().
676        - Added new C++ API method Sampler::SetGlobalMaxVoices().
677        - Added new C++ API method Sampler::SetGlobalMaxStreams().
678        - Various "const" and "restrict" optimizations.
679        - all engines: add pan CC value to instrument pan parameter before
680          applying panning, instead of using two separate pan functions in
681          series (#182)
682        - added a lock guard class for exception safe mutex handling and
683          used it everywhere appropriate
684        - Immediately apply scale tuning changes to active voices.
685        - Exposed scale tuning to C++ API (along to the already existing standard
686          SysEx way).
687        - lsatomic.h fixes: seq_cst load and store were suboptimal for x86
688          and broken for ppc64. (Seq_cst loads and stores are actually not
689          used in LS, so the bug wasn't noticable.)
690        - lsatomic.h: added ARMv7 support
691        - Added support for multiple MIDI input ports per sampler channel (and
692          added various new C++ methods for this new feature / design change, old
693          C++ API methods for managing SamplerChannel's MIDI inputs are now marked
694          as deprecated but are still there and should provide full behavior
695          backward compatibility).
696        - AbstractEngine::GSChecksum(): don't allocate memory on the stack (was
697          unsafe and caused compilation error with clang 2.x).
698        - Bugfix: only process the latest MIDI program change event.
699        - Introducing the LSCP shell, which provides convenient control of the
700          sampler from the command line by providing LSCP aware features.
701        - VirtualMidiDevice: Added support for program change.
702        - VirtualMidiDevice: Added support for bank select (MSB & LSB).
703        - VirtualMidiDevice: Added support for pitch bend.
704        - Aftertouch: extended API to explicitly handle channel pressure and
705          polyphonic key pressure events (so far polyphonic pressure was not
706          supported at all, and channel pressure was rerouted as CC128 but not
707          used so far).
708        - Added initial support for real-time instrument scripts. The script VM
709          code is shared by all sampler engine implemementations, however only the
710          gig file format currently provides support for storing instrument scripts
711          (as LinuxSampler extension to the original GigaStudio 4 format).
712    
713      * Gigasampler format engine:
714        - implemented the "round robin keyboard" dimension
715        - fixed round robin and random dimensions for cases when number of
716          dimension zones is not a power of two
717        - made round robin use a counter for each region instead of each
718          key
719        - bugfix: pitch LFO controller "internal+aftertouch" was broken
720        - bugfix: filter keyboard tracking was broken
721        - filter performance fix (an unnecessary copy was made of the
722          filter parameters in each sub fragment)
723        - handle special case when pan parameter in gig file has max or
724          min value
725        - Exclusive Groups: don't ever stop voices of the same note,
726          doesn't sound naturally with a drumkit
727        - fixed EG1 modulation when attack or release is zero
728        - Fixed support for 'aftertouch' attenuation controller.
729        - Fixed crash that happened with velocity split sounds under certain
730          conditions (see also previous commit on libgig).
731        - fixed behaviour of filter LFO
732    
733      * SFZ format engine:
734        - Initial implementation (not usable yet)
735        - added support for v2 multiple stage envelope generators
736        - added a fine-tuned v1 envelope generator instead of using the
737          one from the gig engine
738        - fixed memory leak and memory handling errors
739        - added support for trigger=first, trigger=legato and sw_previous
740        - allow non-numerical key values ("C#4" for example)
741        - "key" opcode now sets pitch_keycenter too
742        - fixed error when unloading instrument with same sample used by
743          multiple regions
744        - added some opcode aliases, like loopmode for loop_mode, to be
745          more compatible
746        - added support for trigger=release and rt_decay
747        - added support for off_mode=normal
748        - added support for random, seq_position, seq_length and volume
749        - added v1 LFO opcodes to parser (no support in engine yet)
750        - added support for amp_veltrack and amp_velcurve_N
751        - fine-tuned the default velocity curve
752        - added support for transpose
753        - fixed crash when using sw_down/up
754        - improved logic for sw_lokey/hikey/up/down/last
755        - added more v1 aliases to parser
756        - reduced memory usage for sfz data
757        - RT-safeness: avoid malloc in audio thread
758        - fixed a bug that could cause voice stealing to fail
759        - optimized sample lookup
760        - improved support for exclusive groups (group, off_by and
761          off_mode)
762        - added support for controller triggered regions (on_locc/on_hicc)
763        - added support for loop_mode=one_shot
764        - fixed playback of 16 bit wav files on big endian CPUs
765        - added support for Ogg Vorbis sample files
766        - use loop markers from sample file if loop_start and loop_end are
767          not set in sfz file
768        - implemeted filters. Filter types: lowpass, bandpass, bandreject
769          and highpass. 1, 2, 4 and 6 pole filters. Opcodes: fil_type,
770          cutoff, resonance, fil_veltrack, fil_keytrack, fil_keycenter,
771          cutoff_cc, cutoff_chanaft.
772        - bugfix: zero ampeg_sustain didn't work
773        - added support for velocity effect on amplifier envelope time
774          (ampeg_vel2attack, ampeg_vel2decay, ampeg_vel2sustain and
775          ampeg_vel2release)
776        - added support for EG hold (ampeg_hold)
777        - added support for sample offset (offset)
778        - use the newly introduced signal units model
779        - implemented opcodes lfoN_delay,
780          lfoN_freq, lfoN_pan, lfoN_cutoff, lfoN_resonance
781        - implemented opcodes ampeg_delay, ampeg_vel2delay
782          pitcheg_delay, pitcheg_start, pitcheg_attack, pitcheg_hold,
783          pitcheg_decay, pitcheg_sustain, pitcheg_release, pitcheg_vel2delay,
784          pitcheg_vel2attack, pitcheg_vel2hold, pitcheg_vel2decay,
785          pitcheg_vel2sustain, pitcheg_vel2release, pitcheg_depth
786        - implemented opcodes pitchlfo_delay, pitchlfo_freq,
787          pitchlfo_depth, fillfo_delay, fillfo_freq, fillfo_depth,
788          amplfo_delay, amplfo_freq, amplfo_depth
789        - implemented opcodes fileg_delay, fileg_start, fileg_attack,
790          fileg_hold, fileg_decay, fileg_sustain, fileg_release, fileg_vel2delay,
791          fileg_vel2attack, fileg_vel2hold, fileg_vel2decay, fileg_vel2sustain,
792          fileg_vel2release
793        - implemented opcode lfoN_wave
794        - implemented opcode pitchlfo_depthccN
795        - implemented opcodes lfoN_phase, lfoN_phase_onccX,
796          lfoN_pitch, lfoN_pitch_onccX
797        - implemented opcodes pitchlfo_fade,
798          fillfo_fade, amplfo_fade, lfoN_fade, lfoN_fade_onccX
799        - implemented opcodes fillfo_freqccN,
800          pitchlfo_freqccN, amplfo_freqccN, lfoN_freq_onccX
801        - implemented opcodes ampeg_delayccN, ampeg_startccN,
802          ampeg_attackccN, ampeg_holdccN, ampeg_decayccN, ampeg_sustainccN,
803          ampeg_releaseccN, egN_timeX_onccY, egN_levelX_onccY
804        - lfoN_* and egN_* opcodes defined in group sections
805          are now taken into account
806        - implemented curves
807        - implemented opcodes volume_onccN, volume_curveccN
808        - implemented opcode volume_smoothccN
809        - implemented opcodes fillfo_depthccN, amplfo_depthccN,
810          lfoN_volume, lfoN_volume_onccX, lfoN_volume_smoothccX,
811          lfoN_freq_smoothccX, lfoN_pitch_smoothccX, lfoN_pan_onccX,
812          lfoN_pan_smoothccX, lfoN_cutoff_onccX, lfoN_cutoff_smoothccX,
813          lfoN_resonance_onccX, lfoN_resonance_smoothccX, lfoN_delay_onccX
814        - implemented opcode end
815        - implemented opcodes egN_amplitude_onccX,
816          egN_volume, egN_volume_onccX, egN_cutoff, egN_cutoff_onccX,
817          egN_pitch, egN_pitch_onccX, egN_resonance, egN_resonance_onccX
818        - implemented opcodes xfin_lokey, xfin_hikey,
819          xfout_lokey, xfout_hikey, xf_keycurve, xfin_lovel, xfin_hivel,
820          xfout_lovel, xfout_hivel, xf_velcurve, xfin_loccN, xfin_hiccN,
821          xfout_loccN, xfout_hiccN, xf_cccurve
822        - implemented opcodes pan_onccN, pan_smoothccN,
823          pan_curveccN, egN_pan, egN_pan_curve, egN_pan_onccX,
824          egN_pan_curveccX, pitch_veltrack
825        - when failed to parse a sfz file
826          print the line number on which the error occurs
827        - use common pool of CC objects to minimize RAM usage
828        - implemented opcodes amplfo_delay_onccN,
829          amplfo_fade_onccN, fillfo_delay_onccN, fillfo_fade_onccN,
830          pitchlfo_delay_onccN, pitchlfo_fade_onccN
831        - implemented opcodes fileg_delay_onccN,
832          fileg_start_onccN, fileg_attack_onccN, fileg_hold_onccN,
833          fileg_decay_onccN, fileg_sustain_onccN, fileg_release_onccN,
834          fileg_depth_onccN, pitcheg_delay_onccN, pitcheg_start_onccN,
835          pitcheg_attack_onccN, pitcheg_hold_onccN, pitcheg_decay_onccN,
836          pitcheg_sustain_onccN, pitcheg_release_onccN, pitcheg_depth_onccN
837        - implemented automatic aliasing *ccN <-> *_onccN
838        - *lfo_freqccN wasn't working when the respective *lfo_freq
839          was not set or was set to zero
840        - lfoN_freq_onccX wasn't working when lfoN_freq
841          was not set or was set to zero
842        - implemented opcodes resonance_onccN, resonance_smoothccN,
843          resonance_curveccN, cutoff_smoothccN, cutoff_curveccN
844        - implemented opcodes fillfo_depthchanaft,
845          fillfo_freqchanaft, amplfo_depthchanaft, amplfo_freqchanaft,
846          pitchlfo_depthchanaft, pitchlfo_freqchanaft
847        - implemented opcodes pitch_onccN,
848          pitch_curveccN, pitch_smoothccN, pitch_stepccN
849        - implemented opcodes volume_stepccN, pan_stepccN,
850          cutoff_stepccN, resonance_stepccN, lfoN_freq_stepccX,
851          lfoN_volume_stepccX, lfoN_pitch_stepccX, lfoN_pan_stepccX,
852          lfoN_cutoff_stepccX, lfoN_resonance_stepccX
853        - implemented opcodes eq1_freq, eq2_freq, eq3_freq,
854          eq1_freqccN, eq2_freqccN, eq3_freqccN, eq1_bw, eq2_bw, eq3_bw,
855          eq1_bwccN, eq2_bwccN, eq3_bwccN, eq1_gain, eq2_gain, eq3_gain,
856          eq1_gainccN, eq2_gainccN, eq3_gainccN
857        - implemented opcodes delay, delay_onccN, delay_random,
858          delay_samples, delay_samples_onccN
859        - implemented opcodes egN_eq1gain, egN_eq2gain, egN_eq3gain,
860          egN_eq1gain_onccX, egN_eq2gain_onccX, egN_eq3gain_onccX, egN_eq1freq,
861          egN_eq2freq, egN_eq3freq, egN_eq1freq_onccX, egN_eq2freq_onccX,
862          egN_eq3freq_onccX, egN_eq1bw, egN_eq2bw, egN_eq3bw, egN_eq1bw_onccX,
863          egN_eq2bw_onccX, egN_eq3bw_onccX, lfoN_eq1gain, lfoN_eq2gain,
864          lfoN_eq3gain, lfoN_eq1gain_onccX, lfoN_eq2gain_onccX, lfoN_eq3gain_onccX,
865          lfoN_eq1gain_smoothccX, lfoN_eq2gain_smoothccX, lfoN_eq3gain_smoothccX,
866          lfoN_eq1gain_stepccX, lfoN_eq2gain_stepccX, lfoN_eq3gain_stepccX,
867          lfoN_eq1freq, lfoN_eq2freq, lfoN_eq3freq, lfoN_eq1freq_onccX,
868          lfoN_eq2freq_onccX, lfoN_eq3freq_onccX, lfoN_eq1freq_smoothccX,
869          lfoN_eq2freq_smoothccX, lfoN_eq3freq_smoothccX, lfoN_eq1freq_stepccX,
870          lfoN_eq2freq_stepccX, lfoN_eq3freq_stepccX, lfoN_eq1bw, lfoN_eq2bw,
871          lfoN_eq3bw, lfoN_eq1bw_onccX, lfoN_eq2bw_onccX, lfoN_eq3bw_onccX,
872          lfoN_eq1bw_smoothccX, lfoN_eq2bw_smoothccX, lfoN_eq3bw_smoothccX,
873          lfoN_eq1bw_stepccX, lfoN_eq2bw_stepccX, lfoN_eq3bw_stepccX
874        - implemented opcodes eq1_vel2freq, eq2_vel2freq,
875          eq3_vel2freq, eq1_vel2gain, eq2_vel2gain, eq3_vel2gain
876        - sfz parser: allow double spaces in sample filenames
877        - sfz parser: allow absolute paths for sample filenames
878        - use linear decay and release for filter and pitch EG
879        - bugfix: only the first amp_veltrack definition in a file was
880          used
881        - bugfix: looping was disabled if loop_start was set to 0
882        - allow regions with end=-1 to turn off other regions using the
883          group and off_by opcodes (#168)
884        - made end=0 play the whole sample
885        - fixed support for lochan and hichan opcodes (#155)
886        - fixed crash when using lochan/hichan opcodes (#187)
887        - sfz parser: allow -200 to 200 for pan_oncc opcode (#182)
888        - added FLAC support (#191)
889        - sfz parser bugfix: lines starting with whitespace were ignored
890        - added amplitude opcode
891        - added support for "#include" instruction
892          (modified patch which was originally posted by Sergey on LS mailing list)
893        - bugfix: generation of velocity curves etc should not be done
894          after each "#include", only after the main file is parsed
895        - bugfix: line numbers in error messages were wrong after "#include"
896        - added support for float and 32 bit sample files
897    
898      * SoundFont format engine:
899        - Initial implementation (not usable yet)
900        - RT-safeness: avoid malloc in audio thread
901        - fixed a bug that could cause voice stealing to fail
902        - fine-tuned amplitude EG (by switching from gig to sfz EG)
903        - initial implementation of Vibrato LFO and Modulation LFO
904        - initial implementation of cutoff filter
905        - use linear decay and release for filter and pitch EG
906    
907      * Host plugins (VST, AU, LV2, DSSI):
908        - AU bugfix: failed to destroy its audio/MIDI devices
909        - Listen to all interfaces on Mac OS X (INADDR_ANY)
910        - VST bugfix: If the host called resume() before and after
911          changing sample rate or block size, the number of channels was
912          incorrectly set to two. This caused silence in Cubase 5.
913        - save engine type (gig, sfz or sf2) in plugin state
914        - VST: when opening Fantasia, look for both 32 and 64 bit Java on
915          64 bit Windows
916        - AU: changed number of output channels from one stereo to 16
917          stereo
918        - VST: made it possible to build the VST plugin for Mac
919        - AU: link AU plugin dynamically if --disable-shared isn't
920          specified
921        - LV2 "state" extension support (patch by David Robillard)
922        - VST bugfix: instrument loading hang and crashed the host when
923          the plugin was loaded a second time (#174)
924        - plugin bugfix: instrument loading hang when the plugin was
925          loaded a second time (this time it's for Linux and Mac, previous
926          similar fix was for Windows)
927        - thread safety fixes for the instrument loading thread
928        - LV2: use the new lv2 package if present
929        - VST: try to open Fantasia automatically on Linux and Mac too (on
930          Linux, the Fantasia jar should be placed in <prefix>/share/java)
931        - VST: fixed crashes on Linux Ardour and EnergyXT
932        - DSSI bugfix: it wasn't possible to change engine type. The MIDI
933          port and audio channel routing for DSSI plugins are now visible.
934        - LV2: use urid and atom extensions instead of deprecated uri-map
935          and event
936        - LV2: lv2 package 1.0 is now required to build the LV2 plugin
937        - LV2: changed number of output channels to 16 stereo, just like
938          the VST and AU plugins
939        - LV2: fixed save/restore of SFZ state (patch by David Robillard)
940        - LV2: made LV2 plugin buildable on Windows and Mac
941        - VST: implemented retrieval and switching of programs using the
942          sampler's internal MIDI instrument mapping system
943    
944      * Instrument editor interface:
945        - Changed instrument editor plugin interface, providing additional
946          informations like the EngineChannel for which the instrument editor was
947          spawned for. This allows the instrument editors to interact more actively
948          with the sampler.
949    
950      * MIDI driver:
951        - ALSA MIDI driver supports now "NAME" device parameter, for overriding
952          the ALSA sequencer client name
953        - removed limit of maximum amount of MIDI ports per MIDI device, since
954          there is no reason for this limit
955        - MME: fixed memory handling bug found with cppcheck
956        - MME: removed compiler warning
957        - CoreMIDI: implemented driver specific port parameter "CORE_MIDI_BINDINGS",
958          which allows to retrieve the list of CoreMIDI clients / ports and to connect
959          to them a la JACK, via the usual sampler APIs
960        - CoreMIDI: added driver specific port parameter "AUTO_BIND", if enabled
961          the driver will automatically connect to other CoreMIDI clients' ports
962          (e.g. external MIDI devices being attached to the Mac)
963        - added support for MIDI note on velocity filter
964        - CoreMIDI: fixed memory deallocation error
965        - Fixed variable underflow in VirtualMidiDevice, which caused graphical
966          virtual keyboards in frontends / instrument editors being stuck.
967        - Bugfix in VirtualMidiDevice: process note on with velocity 0 as note off.
968        - Implemented missing handling of MIDI "running status".
969        - CoreMIDI fix: a MIDIPacket can contain more than one event per packet.
970        - MME bugfix: driver wasn't closed properly
971        - CoreMIDI: automatically connect to all input sources by default (driver
972          parameter "AUTO_BIND").
973        - CoreMIDI: fixed auto bind feature to CoreMIDI ports that go online
974        - CoreMIDI: fixed minor memory leak
975    
976      * audio driver:
977        - ASIO driver fixes for newer gcc versions (fix from PortAudio)
978        - JACK audio: react on sample rate changes.
979        - JACK audio: react on buffer size changes.
980        - JACK audio: jack_port_get_buffer() was cached and called outside
981          RT context.
982        - ASIO driver: removed compiler warnings
983        - CoreAudio: fixed minor error handling bug
984        - ASIO driver: be more verbose when no ASIO card could be found (fixes #203)
985        - JACK audio: return the JACK server's current sample rate as default value
986          for audio device parameter "SAMPLERATE" (fixes #166).
987    
988      * LSCP server:
989        - added support for sending MIDI CC messages via LSCP command
990          "SEND CHANNEL MIDI_DATA CC <sampler-chan> <ctrl> <val>"
991        - added LSCP command "GET AVAILABLE_EFFECTS"
992        - added LSCP command "LIST AVAILABLE_EFFECTS"
993        - added LSCP command "GET EFFECT INFO <effect-index>"
994        - added LSCP command "CREATE EFFECT_INSTANCE <effect-index>"
995        - added LSCP command
996          "CREATE EFFECT_INSTANCE <effect-system> <module> <effect-name>"
997        - added LSCP command "DESTROY EFFECT_INSTANCE <effect-instance>"
998        - added LSCP command "GET EFFECT_INSTANCES"
999        - added LSCP command "LIST EFFECT_INSTANCES"
1000        - added LSCP command "GET EFFECT_INSTANCE INFO <effect-instance>"
1001        - added LSCP command
1002          "GET EFFECT_INSTANCE_INPUT_CONTROL INFO <effect-instance> <input-control>"
1003        - added LSCP command "SET EFFECT_INSTANCE_INPUT_CONTROL VALUE
1004          <effect-instance> <input-control> <value>"
1005        - added LSCP command "GET SEND_EFFECT_CHAINS <audio-device>"
1006        - added LSCP command "LIST SEND_EFFECT_CHAINS <audio-device>"
1007        - added LSCP command "ADD SEND_EFFECT_CHAIN <audio-device>"
1008        - added LSCP command
1009          "REMOVE SEND_EFFECT_CHAIN <audio-device> <effect-chain>"
1010        - added LSCP command
1011          "GET SEND_EFFECT_CHAIN INFO <audio-device> <effect-chain>"
1012        - added LSCP command "APPEND SEND_EFFECT_CHAIN EFFECT <audio-device>
1013          <effect-chain> <effect-instance>"
1014        - added LSCP command "INSERT SEND_EFFECT_CHAIN EFFECT <audio-device>
1015          <effect-chain> <effect-chain-pos> <effect-instance>"
1016        - added LSCP command "REMOVE SEND_EFFECT_CHAIN EFFECT <audio-device>
1017          <effect-chain> <chain-pos>"
1018        - added LSCP command "SET FX_SEND EFFECT <sampler_channel>
1019          <fx_send_id> <effect_chain> <chain_pos>"
1020        - added LSCP command "REMOVE FX_SEND EFFECT <sampler_channel> <fx_send_id>"
1021        - added LSCP commands "SUBSCRIBE EFFECT_INSTANCE_COUNT",
1022          "SUBSCRIBE EFFECT_INSTANCE_INFO", "SUBSCRIBE SEND_EFFECT_CHAIN_COUNT",
1023          "SUBSCRIBE SEND_EFFECT_CHAIN_INFO"
1024        - provide comprehensive error messages on LSCP syntax errors
1025          (suggesting expected next non-terminal symbols)
1026        - Fixed client connection not being closed after network errors.
1027    
1028      * LSCP shell:
1029        - Added support for auto correction of obvious and trivial syntax mistakes.
1030        - Added support for auto completion by tab key.
1031        - Show currently available auto completion while typing.
1032        - Added support for browsing command history with up / down keys.
1033        - Show all possible next symbols immediately right to the current command
1034          line while typing (no double tab required for this feature, as it would
1035          be the case in other shells).
1036        - Added support for moving cursor left/right with arrow keys.
1037        - Added support for built-in LSCP reference documentation, which will
1038          automatically show the relevant LSCP reference section on screen as soon
1039          as one specific LSCP command was detected while typing on the command
1040          line.
1041    
1042      * Real-time instrument scripts:
1043        - Implemented built-in script array variable %CC.
1044        - Implemented built-in script int variable $CC_NUM.
1045        - Implemented built-in script int variable $EVENT_NOTE.
1046        - Implemented built-in script int variable $EVENT_VELOCITY.
1047        - Implemented built-in script constant variable $VCC_MONO_AT.
1048        - Implemented built-in script constant variable $VCC_PITCH_BEND.
1049        - Implemented execution of script event handler "init".
1050        - Implemented execution of script event handler "controller".
1051        - Implemented execution of script event handler "note".
1052        - Implemented execution of script event handler "release".
1053        - Implemented built-in script function "play_note()" (only two of the
1054          max. four function arguments are currently implemented yet though).
1055        - Implemented built-in script int variable $EVENT_ID.
1056        - Implemented built-in script function "ignore_event()"
1057        - Implemented built-in script function "ignore_controller()" (may have one
1058          or no argument).
1059        - Implemented built-in script function "set_controller()".
1060        - Added extended script VM for the Gigasampler/GigaStudio format sampler
1061          engine, which extends the general instrument script VM with Giga format
1062          specific variables and functions.
1063        - Giga format scripts: added built-in script int constant variables
1064          $GIG_DIM_CHANNEL, $GIG_DIM_LAYER, $GIG_DIM_VELOCITY, $GIG_DIM_AFTERTOUCH,
1065          $GIG_DIM_RELEASE, $GIG_DIM_KEYBOARD, $GIG_DIM_ROUNDROBIN, $GIG_DIM_RANDOM,
1066          $GIG_DIM_SMARTMIDI, $GIG_DIM_ROUNDROBINKEY, $GIG_DIM_MODWHEEL,
1067          $GIG_DIM_BREATH, $GIG_DIM_FOOT, $GIG_DIM_PORTAMENTOTIME, $GIG_DIM_EFFECT1,
1068          $GIG_DIM_EFFECT2, $GIG_DIM_GENPURPOSE1, $GIG_DIM_GENPURPOSE2,
1069          $GIG_DIM_GENPURPOSE3, $GIG_DIM_GENPURPOSE4, $GIG_DIM_SUSTAIN,
1070          $GIG_DIM_PORTAMENTO, $GIG_DIM_SOSTENUTO, $GIG_DIM_SOFT,
1071          $GIG_DIM_GENPURPOSE5, $GIG_DIM_GENPURPOSE6, $GIG_DIM_GENPURPOSE7,
1072          $GIG_DIM_GENPURPOSE8, $GIG_DIM_EFFECT1DEPTH, $GIG_DIM_EFFECT2DEPTH,
1073          $GIG_DIM_EFFECT3DEPTH, $GIG_DIM_EFFECT4DEPTH, $GIG_DIM_EFFECT5DEPTH.
1074        - Giga format scripts: Implemented built-in script function
1075          "gig_set_dim_zone(event_id, dimension, zone)".
1076        - Implemented built-in script int array variable %KEY_DOWN.
1077        - Implemented built-in script function "abs()".
1078        - Implemented built-in script function "random()".
1079        - Implemented built-in script function "num_elements()".
1080        - Implemented built-in script function "note_off()".
1081        - Implemented built-in script function "set_event_mark()".
1082        - Implemented built-in script function "delete_event_mark()".
1083        - Implemented built-in script function "by_marks()".
1084        - Added built-in script int const variables $MARK_1 to $MARK_28.
1085        - Built-in script functions "ignore_event()", "note_off()" and
1086          "gig_set_dim_zone()" now also accept an array of event IDs as argument
1087          (i.e. return value of new script function "by_marks()").
1088        - Pass/preserve polyphonic variable data from respective "note" event
1089          handler to "release" event handler.
1090        - Fixed crash when using built-in script function "by_marks()".
1091    
1092      * Bug fixes:
1093        - Fixed crash which may occur when MIDI key + transpose is out of range
1094        - minor valgrind fixes
1095        - fixed crash which occurred when changing an already deployed sampler
1096          channel to a different engine type
1097        - fixed crash when deleting a sampler channel or changing engine
1098          type while an instrument load was in progress
1099        - bugfix: playing a note while changing the instrument could cause
1100          a crash, or give "Handing back unknown region" error messages
1101        - bugfix: calling SET VOICES (which Fantasia does on start and
1102          refresh) could cause instruments to be unloaded
1103        - Mac OS X: fixed name collision of enum in EffectControl and
1104          wrong name of destructor in AudioOutputDeviceCoreAudio.cpp
1105        - Mac OS X: fixed hanging threads
1106        - Windows: disabled the previous thread fix on non-Mac systems, as
1107          it caused hanging threads on Windows
1108        - Fixed possible crashes due to corrupted MIDI/audio device list
1109          after MIDI/audio device creation failure
1110        - When creating MIDI instrument map entries with "PERSISTENT" type, the
1111          instruments were uselessly precached with zero samples, however it still
1112          took the full preloading time and on 1st program change the respective
1113          instrument was completely reloaded again.
1114        - fixed handling of rapid bank select and program change messages
1115          sent to the same sampler channel (patch from the Open Octave
1116          project, slightly adjusted)
1117        - fixed crash when trying to create an effect instance with controls
1118          which min and/or max values depend on the sample rate
1119        - fixed bug #162
1120        - bugfix: LADSPA_PATH was not evaluated correctly when containing
1121          multiple paths (#165)
1122        - thread safety fixes for the instrument loading thread
1123        - bugfix: instrument loading crashed for sfz and sf2 in Ardour
1124          (#176)
1125        - more thread safety fixes for the instrument loading thread
1126        - sfz/sf2 engine: fixed crash when using small audio fragment size
1127        - Mac OS X: fixed crash when unloading plugin on 10.7 and later
1128        - Mac OS X: fixed process hang when unloading 32-bit plugin (bug
1129          introduced in previous fix)
1130        - fixed crash when a channel received a program change while
1131          playing a note in a key group
1132        - fixed erroneous error message piping in VoiceBase.h
1133          (labelled "Disk stream not available in time")
1134        - Update effects on sample rate & period size changes (to avoid
1135          crashes and noise on such transitions).
1136        - ignore missing LADSPA paths without ignoring valid LADSPA paths
1137          (fixes #208)
1138        - Fixed bug in LSCP grammar definition which caused a statement like
1139          "GET SERVER INFOasdf\n" to be accepted as valid statement (was so far
1140          practically irrelevant, however it caused problems with the new LSCP
1141          shell's auto completion feature).
1142        - Fixed MIDI program change messages being ignored if quickly executed
1143          after each other (fixes #231).
1144    
1145    Version 1.0.0 (31 July 2009)
1146    
1147    * packaging changes:    * packaging changes:
1148      - autoconf bugfix: the PKG_CONFIG variable wasn't initialized properly,      - autoconf bugfix: the PKG_CONFIG variable wasn't initialized properly,
# Line 13  Version CVS HEAD (?) Line 1157  Version CVS HEAD (?)
1157      - fixed building with libgig installed in a non-standard directory      - fixed building with libgig installed in a non-standard directory
1158      - minor fix in configure for mmsystem.h detection on MinGW      - minor fix in configure for mmsystem.h detection on MinGW
1159      - Windows: look for editor plugins and Fantasia using base      - Windows: look for editor plugins and Fantasia using base
1160        directory of liblinuxsampler dll        directory of liblinuxsampler dll (look in the same directory and one
1161          directory above)
1162      - configure script fix: removed unconditional use of SSE      - configure script fix: removed unconditional use of SSE
1163        - fixed building with sqlite installed in a non-standard directory
1164        - when cross-compiling, don't try to create instruments.db
1165        - fix for new mingw-w64 version, which has usleep
1166    
1167    * general changes:    * general changes:
1168      - bugfix: on some POSIX systems instrument editor plugins refused to      - bugfix: on some POSIX systems instrument editor plugins refused to
# Line 54  Version CVS HEAD (?) Line 1202  Version CVS HEAD (?)
1202      - theoretical fix: made SynchronizedConfig follow C++0x memory      - theoretical fix: made SynchronizedConfig follow C++0x memory
1203        model more strictly        model more strictly
1204      - fixes for using large audio device buffers      - fixes for using large audio device buffers
1205        - Windows: add the installation directory to the DLL search path
1206          when loading an editor plugin (solves problems with VST and
1207          gigedit on systems with other GTK versions installed)
1208        - updated linuxsampler man page
1209    
1210    * audio driver:    * audio driver:
1211      - removed the nonsense audio channel constraint (which was hard coded to      - removed the nonsense audio channel constraint (which was hard coded to
# Line 81  Version CVS HEAD (?) Line 1233  Version CVS HEAD (?)
1233        stereo        stereo
1234      - added channel routing, fxsends and midi maps to the settings      - added channel routing, fxsends and midi maps to the settings
1235        stored in the plugin state        stored in the plugin state
1236        - performance optimization of AudioChannel::MixTo() and
1237          AudioChannel::CopyTo() methods using GCC vector exensions
1238          (if available)
1239        - ASIO fixes: avoid initializing the device twice, avoid throwing
1240          exception when getting parameters from a disconnected device
1241    
1242    * MIDI driver:    * MIDI driver:
1243      - added JACK MIDI driver      - added JACK MIDI driver
# Line 90  Version CVS HEAD (?) Line 1247  Version CVS HEAD (?)
1247      - bugfix: pitch bend wasn't working with JackMidi, VST, LV2, MME,      - bugfix: pitch bend wasn't working with JackMidi, VST, LV2, MME,
1248        CoreMidi or AU        CoreMidi or AU
1249      - fixed mingw-w64 compilation error in MME driver      - fixed mingw-w64 compilation error in MME driver
1250        - made program change handling in MIDI thread real-time safe by
1251          moving the logic to a non-RT thread
1252        - fixed minor memory leak in ALSA driver
1253    
1254    * instruments database:    * instruments database:
1255      - avoid time consuming samples scanning when adding instruments      - avoid time consuming samples scanning when adding instruments
# Line 100  Version CVS HEAD (?) Line 1260  Version CVS HEAD (?)
1260        (patch by Chris Cherrett & Andrew Williams, a bit adjusted)        (patch by Chris Cherrett & Andrew Williams, a bit adjusted)
1261      - work-around for missing fnmatch function on Windows to make      - work-around for missing fnmatch function on Windows to make
1262        instrument database compilable        instrument database compilable
1263          - added instrument database support on Windows      - added instrument database support on Windows
1264            works with both standalone mode and VST plugin.        works with both standalone mode and VST plugin.
1265            the instruments DB file is located in        the instruments DB file is located in
1266            %USERPROFILE%\.linuxsampler\instruments.db which allows different        %USERPROFILE%\.linuxsampler\instruments.db which allows different
1267            databases for each windows user        databases for each windows user
1268            if no DB is present it automatically creates the .linuxsampler subdir        if no DB is present it automatically creates the .linuxsampler subdir
1269            and then creates an empty DB        and then creates an empty DB
1270        - fixed recursive import, which was broken on Windows
1271    
1272    * Gigasampler format engine:    * Gigasampler format engine:
1273      - fixed a memory leak that could happen when a channel was deleted      - fixed a memory leak that could happen when a channel was deleted
# Line 150  Version CVS HEAD (?) Line 1311  Version CVS HEAD (?)
1311      - added a limit check for upward pitch shifting      - added a limit check for upward pitch shifting
1312      - bugfix: sometimes, when playing a note twice fast, the second      - bugfix: sometimes, when playing a note twice fast, the second
1313        note was silent        note was silent
1314        - fixed crash happening when a pitch bend event arrived at the
1315          same time a new instrument was loading
1316    
1317    * LSCP server:    * LSCP server:
1318      - added new LSCP event "CHANNEL_MIDI" which can be used by frontends to      - added new LSCP event "CHANNEL_MIDI" which can be used by frontends to
# Line 204  Version CVS HEAD (?) Line 1367  Version CVS HEAD (?)
1367        plugin was unloaded        plugin was unloaded
1368      - bugfix: two private structs had the same name, which could cause      - bugfix: two private structs had the same name, which could cause
1369        problems if the linker chose the wrong constructor        problems if the linker chose the wrong constructor
1370        - fixed low-level ConditionServer usage bug that caused lockups on
1371          Windows
1372    
1373    
1374  Version 0.5.1 (6 December 2007)  Version 0.5.1 (6 December 2007)
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