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revision 925 by schoenebeck, Sat Oct 21 14:50:32 2006 UTC revision 3611 by schoenebeck, Mon Sep 30 17:35:43 2019 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    
14      * Real-time instrument scripts:
15        - Added method ScriptVM::setExitResultEnabled() which allows to
16          explicitly enable the built-in exit() function to optionally accept
17          one function argument; the value of the passed exit() function
18          argument will then become available by calling
19          VMExecContext::exitResult() after script execution.
20        - 64 bit support for NKSP integer scripts variables (declare $foo).
21        - Variable names, function names and preprocessor condition names must start
22          with a regular character (a-z or A-Z); starting them with a digit or
23          underscore is not allowed.
24        - NKSP parser fix: equal comparison operator "=" and not equal comparison
25          operator "#" must only accept integer operands.
26        - NKSP language: Implemented support for standard units like Hertz, seconds,
27          Bel including support for metric unit prefixes; so one can now e.g.
28          conveniently use numbers in scripts like "5us" meaning "5 microseconds",
29          or e.g. "12kHz" meaning "12 kilo Hertz", or e.g. "-14mdB" meaning
30          "minus 14 Millidecibel", or e.g. "28c" meaning "28 cents" (for tuning).
31        - NKSP language: Introduced "final" operator "!" which is specifically
32          intended for synthesis parameter values to denote that the synthesis
33          parameter value is intended to be the "final" value for that synthesis
34          parameter that should explicitly be used by the engine and thus causing
35          the sampler engine to ignore all other modulation sources for the same
36          synthesis parameter (like e.g. LFO, EG); by simply prefixing a value,
37          variable or formula with this new "!" operator the expression is marked as
38          being "final".
39        - NKSP script editor API: Added support for detecting standard unit tokens
40          and their potential metric prefix token.
41        - NKSP language: Added support for NKSP real number literals and
42          arithmetic operations on them (e.g. "(3.9 + 2.9) / 12.3 - 42.0").
43        - NKSP language: Added support for NKSP real number (floating point) script
44          variables (declare ~foo).
45        - NKSP language: Added support for NKSP real number (floating point) array
46          script variables (declare ?foo[]).
47        - Built-in script function "message()" accepts now real number argument as
48          well.
49        - Added built-in script function "real_to_int()" and its short hand form
50          "int()" for casting from real number to integer in NKSP scripts.
51        - Added built-in script function "int_to_real()" and its short hand form
52          "real()" for casting from integer to real number in NKSP scripts.
53        - Allow built-in exit() function to potentially accept real number type
54          argument as well.
55        - Built-in script functions may have a different return type depending on
56          the arguments passed to the function.
57        - Built-in script function "abs()" optionally accepts and returns real
58          number.
59        - Built-in script functions "min()" and "max()" optionally accept real
60          number arguments and return real number as result in that case.
61        - NKSP VM API: Allow units and 'final'ness to be returned as result from
62          built-in functions (added methods VMFunction::returnUnitType() and
63          VMFunction::returnsFinal() for that purpose which must be implemented by
64          built-in function implementations).
65        - NKSP language: Allow metric unit prefixes of numeric scalar and array
66          variables to be changed freely at runtime (unlike unit types like Hz etc.
67          which are still sticky, parse-time features of variables which cannot be
68          changed at runtime for the intentional sake of determinism).
69        - NKSP language: 'final' values are prohibited for array variables for now
70          (attempt causes a parsers error).
71        - NKSP language: expressions with unit types (e.g. Hz) are prohibited for
72          conditions of runtime control structures like if(), while(), select()
73          (attempt causes a parser error).
74        - NKSP VM API: Allow built-in functions to perform their own, individual
75          parse time checks of arguments going to be passed to the function at
76          runtime (added method VMFunction::checkArgs() for that purpose).
77        - NKSP language: raise parser warning if only one operand of binary
78          operators (like logical 'or' comparison) contain a 'final' value (because
79          it would always yield in a 'final' result in such cases).
80        - NKSP language: Allow comparison (=, #, <, >, <=, >=) of values with
81          different metric unit prefixes, which will behave as expected (e.g.
82          result of expression '1000us < 2ms' is true).
83        - NKSP language: Allow adding values with different metric unit prefixes
84          (e.g. result of expression '100Hz + 5kHz' is '5100Hz').
85        - NKSP language: Allow subtracting values with different metric unit
86          prefixes (e.g. result of expression '1ms - 20us' is '980us').
87        - NKSP language: Allow multiplying with any metric unit prefixes
88          (e.g. result of expression '2k * 3ms' is '6s'), however multiplications
89          with unit types on both sides (e.g. '2s * 2s') is still prohibited since
90          we don't have any considerable practical use for a term like '4s^2'
91          (hence any attempt multiplying two unit types still causes parser error).
92        - NKSP language: Allow dividing by any metric unit prefixes and allow
93          division of same unit type on both sides (e.g. expression '8kHz / 1000Hz'
94          yields in unit free result '8'). So this is now a way to cast units away
95          e.g. for passing the result to other expressions, certain function calls
96          or variables which are not accepting any units (or that specific unit).
97        - NKSP language: integer arrays and real number arrays can now be converted
98          to strings (e.g. for dumping their content with message() calls for
99          script debugging purposes).
100        - NKSP language: expressions and variables with units are now correctly
101          casted to strings (e.g. with message() calls).
102        - NKSP language: comparing real numbers for equalness (e.g. '~foo = 3.1') or
103          unequalness (e.g. '~foo # 3.1') is now less strict and takes the expected
104          floating point tolerances into account.
105        - NKSP VM API: Added methods VMScalarNumberExpr::evalCastInt() and
106          VMScalarNumberExpr::evalCastReal().
107        - NKSP VM API: Added base class 'VMNumberArrayExpr' for classes
108          'VMIntArrayExpr' and 'VMRealArrayExpr'.
109        - NKSP VM API: replaced all unitPrefix() (parse time) methods by
110          unitFactor() (runtime) methods.
111        - Built-in function "exit()" supports now returning units and 'final'ness
112          for test cases.
113        - The following built-in functions support now units as well: "abs()",
114          "random()", "inc()", "dec()", "in_range()", "min()", "max()",
115          "real_to_int()", "int()", "int_to_real()" and "real()".
116        - Built-in functions "array_equal()", "search()" and "sort()" support now
117          real number arrays (correctly) as well.
118        - Added individual parse time checks of arguments to be passed to built-in
119          functions "random()", "inc()", "dec()", "in_range()", "min()", "max()",
120          "array_equal()" and "search()" specific for their individual purposes.
121        - NKSP VM refactoring: Renamed all methods, functions and classes matching
122          pattern *ScalarNumber* to simply *Number* (that is i.e. classes
123          VMScalarNumberExpr -> VMNumberExpr, ScalarNumberExpr -> NumberExpr,
124          ScalarNumberVariable -> NumberVariable, ScalarNumberBinaryOp ->
125          NumberBinaryOp, VMScalarNumberResultFunction -> VMNumberResultFunction,
126          method VMExpr::asScalarNumberExpr() -> VMExpr::asNumber(), function
127          isScalarNumber() -> isNumber()).
128        - NKSP VM API: Added 4 overridden methods to class VMNumberExpr:
129          evalCastInt(MetricPrefix_t), evalCastInt(MetricPrefix_t,MetricPrefix_t),
130          evalCastReal(MetricPrefix_t), evalCastReal(MetricPrefix_t,MetricPrefix_t)
131          as convenient methods for automatically converting values to expected
132          metric value basis.
133        - Built-in function "wait()" accepts now both integers and real numbers as
134          argument.
135        - NKSP VM API cleanup: Get rid of legacy method
136          VMFunction::argType(vmint iArg) which was already superseded by its new
137          replacement VMFunction::acceptsArgType(vmint iArg, ExprType_t type).
138        - NKSP parser: if wrong argument type was passed to a built-in function and
139          that built-in function accepts more than one data type for the argument,
140          then show all supported data types as parser error message.
141        - Built-in function "play_note()" accepts now real numbers and seconds as
142          unit type as well for its 3rd and 4th function arguments.
143        - The following built-in functions accept now real numbers as well for their
144          2nd function argument: "change_vol()", "change_tune()", "change_cutoff()",
145          "change_attack()", "change_decay()", "change_release()",
146          "change_sustain()", "change_cutoff_attack()", "change_cutoff_decay()",
147          "change_cutoff_sustain()", "change_cutoff_release()",
148          "change_amp_lfo_freq()", "change_cutoff_lfo_freq()",
149          "change_pitch_lfo_freq()", "change_vol_time()", "change_tune_time()",
150          "change_pan_time()", "fade_in()", "fade_out()", "change_play_pos()".
151        - Fixed built-in function "change_play_pos()" not having accepted metric
152          prefixes at all.
153        - Fixed the following built-in functions having misinterpreted values given
154          with unit type (for their 2nd argument) as if they were relative values
155          (that is as if they were passed without a unit type): "change_attack()",
156          "change_decay()", "change_release()", "change_cutoff_attack()",
157          "change_cutoff_decay()", "change_cutoff_release()".
158        - Fixed the following built-in functions having applied completely wrong
159          'final' values: "change_sustain()", "change_cutoff_sustain()" (since the
160          respective EGs being their modulation sink assume uint data type with
161          value range 0..1000 instead of 0.0..1.0.
162        - Added individual parse-time checks of function arguments for the following
163          built-in functions: "play_note()", "note_off()", "set_event_mark()",
164          "delete_event_mark()", "by_marks()", "change_cutoff()", "change_attack()",
165          "change_decay()", "change_release()", "change_cutoff_attack()",
166          "change_cutoff_decay()", "change_cutoff_release()",
167          "change_amp_lfo_freq()", "change_cutoff_lfo_freq()",
168          "change_pitch_lfo_freq()", "change_vol_time()", "change_tune_time()" and
169          "change_pan_time()".
170        - Don't abort function call if unit type was used and at the same time
171          'final' operator was omitted for the primary value argument of the
172          following built-in functions: "change_cutoff()", "change_attack()",
173          "change_decay()", "change_release()", "change_cutoff_attack()",
174          "change_cutoff_decay()", "change_cutoff_release()",
175          "change_amp_lfo_freq()", "change_cutoff_lfo_freq()",
176          "change_pitch_lfo_freq()", "change_vol_time()", "change_tune_time()",
177          "change_pan_time()", instead imply 'final'ness at runtime and raise an
178          appropriate parser warning at parse time.
179        - Added built-in real number functions "round()", "ceil()", "floor()",
180          "sqrt()", "log()", "log2()", "log10()", "exp()", "pow()", "sin()",
181          "cos()", "tan()", "asin()", "acos()", "atan()".
182        - Added built-in script real number constant "~NI_MATH_PI".
183        - Added built-in script real number constant "~NI_MATH_E".
184        - NKSP language: Allow unary '+' operator.
185    
186      * test cases:
187        - Fixed compiler errors in test cases.
188        - Updated README for how to compile & run test cases.
189        - Updated test case
190          MutexTest::testDoubleLockStillBlocksConcurrentThread() to latest
191          expected behaviour of the Mutex class implementation (recursive
192          mutex type).
193        - Added test cases for NKSP core language aspects and core built-in
194          functions.
195        - Fixed thread tests segfaulting on Linux.
196        - NKSP: Added real number test cases for built-in functions exit(),
197          int_to_real(), real(), real_to_int() and int(), as well as for the
198          plus, minus and negate language operators.
199        - Added massive amount of NKSP test cases for standard measuring units and
200          'final' operator usage cases.
201        - Added NKSP test cases for (floating point tolerance aware) real number
202          equalness / unequalness comparison.
203        - Added NKSP int array and real array tests for value assignment and
204          initialization of arrays.
205        - Added NKSP test cases for built-in functions "round()", "ceil()",
206          "floor()", "sqrt()", "log()", "log2()", "log10()", "exp()", "pow()",
207          "sin()", "cos()", "tan()", "asin()", "acos()", "atan()".
208        - Added NKSP test cases for unary '+' operator.
209    
210      * GigaStudio/Gigasampler format engine:
211        - LFOTriangleIntMath and LFOTriangleIntAbsMath: Fixed FlipPhase=true
212          behaviour for start_level_mid.
213    
214      * SFZ format engine:
215        - Fixed support for regions with loccN/hiccN conditions on more than one
216          MIDI controller.
217    
218    Version 2.1.1 (27 Jul 2019)
219    
220      * Real-time instrument scripts:
221        - Fixed behavior of built-in NKSP functions change_sustain(),
222          change_cutoff_attack(), change_cutoff_decay(), change_cutoff_sustain()
223          and change_cutoff_release().
224    
225      * general changes:
226        - Only play release trigger samples on sustain pedal up if this behaviour
227          was explicitly requested by the instrument (otherwise only on note-off).
228        - Fixed compiler warnings.
229        - Fixed compilation error when cross-compiling to Mac.
230        - FX Sends: Provide more useful error messages on routing problems
231          (see bug #169).
232        - LSCP doc: Be more clear describing the two distinct approaches
233          of using external vs. internal effects (see bug #169).
234        - "optional" class: Fixed comparison operators.
235    
236      * Gigasampler/GigaStudio format engine:
237        - Format extension: If requested by instrument then don't play release
238          trigger sample on note-off events.
239    
240      * SFZ format engine:
241        - Fixed memory leak when releasing samples
242          (fixes bug #307, patch by Jacek Roszkowski)
243        - Fixed potential crash when a sample is shared by more than one region
244          (fixes bug #308, patch by Jacek Roszkowski).
245        - Opcode 'sample': Added support for built-in sample '*silence'
246          (fixes bug #310, patch by Jacek Roszkowski).
247    
248    Version 2.1.0 (25 Nov 2017)
249    
250      * SFZ format engine:
251        - added support for <global>, <master> and #define (patch by Alby M)
252        - Removed code duplication in SFZ file loading code.
253        - Added support for sfz extension opcode 'script' which may be used to
254          load real-time instrument script file (NKSP script language).
255        - Implemented opcode set_ccN (initial patch by Giovanni Senatore).
256        - Fixed unintended volume fade-in of voices under certain conditions.
257        - sfz parser: allow missing space between header and opcode
258    
259      * Gigasampler/GigaStudio format engine:
260        - Fixed clicks and pumping noise with Lowpass Turbo filter on very low
261          cutoff settings.
262        - Got rid of resembling an ancient GSt misbehavior which did not pitch at
263          all if an up-pitch of more than 40 semi tones was requested (I don't
264          think there is any stock gig sound that requires this behavior to
265          resemble its original sound).
266        - Added support for controlling whether the individual EGADSR stages may
267          be aborted (as LinuxSampler extension to the original GigaStudio 4
268          format).
269    
270      * general changes:
271        - fixed printf type errors (mostly in debug messages)
272        - use unique_ptr instead of auto_ptr when building with C++11
273        - Added RTAVLTree class which is a real-time safe ordered multi-map, thus
274          allowing to sort data efficiently in real-time safe manner.
275        - RTList class: added methods for moving/inserting elements to arbitrary
276          position within a list.
277        - RTList class: added method fromPtr() for creating an Iterator object from
278          a raw element pointer.
279        - Attempt to partly fix resetting engine channels vs. resetting engine, an
280          overall cleanup of the Reset*(), ConnectAudioDevice(),
281          DisconnectAudioDevice() API methods would still be desirable though,
282          because the current situation is still inconsistent and error prone.
283        - Active voices are now internally grouped to "Note" objects, instead of
284          being directly assigned to a keyboard key. This allows more fine graded
285          processing of voices, which is i.e. required for certain instrument
286          script features.
287        - Fix: Release trigger voices were not spawned on sustain pedal up
288          (CC #64) events.
289        - Fix: Release trigger voices can now also distinguish correctly between
290          note-off and sustain pedal up events.
291        - All engines: Increased ramp speed of volume smoother and pan smoother
292          (while slow rate of crossfade smoother is preserved) to allow quick
293          volume and pan changes by instrument scripts for instance.
294        - gig/sf2/sfz: Fixed aftertouch channel pressure events being processed
295          properly and thus were ignored for certain uses.
296        - Added new C++ API method
297          VirtualMidiDevice::SendChannelPressureToSampler().
298        - windows, 32-bit: fixed potential crashes by making sure the stack in
299          sub threads is 16-byte aligned
300        - fixed numerous compiler warnings
301        - Fixed invalid (note-on) event ID being assigned to new Note objects.
302        - Revised fundamental C++ classes "Thread", "Mutex" and "Condition" which
303          fixes potential undefined behavior.
304        - Fixed Note object leak when triggering notes on keys which did not
305          have a valid sample mapped (fixes bug #252).
306        - Fixed compilation errors when compiling with CONFIG_DEVMODE enabled.
307        - linuxsampler binary fix: option --create-instruments-db ignored
308          subsequent optional argument due to glibc's implementation oddity
309          which expects a "=" sign, but no space between them.
310    
311      * packaging changes:
312        - removed unnecessary dependency to libuuid
313          (originated by libgig's usage of it)
314        - Automake: set environment variable GCC_COLORS=auto to allow GCC to
315          auto detect whether it (sh/c)ould output its messages in color.
316        - Debian: Fixed packaging error about invalid "Source-Version"
317          substitution variable.
318        - Debian: Raised Debian compatibility level to Debian 9 "Stretch".
319        - Debian: Added build dependency to libsqlite3-dev for building
320          linuxsampler with instruments DB support.
321    
322      * Real-time instrument scripts:
323        - Implemented scheduler for delayed MIDI events and for suspended scripts.
324        - Built-in script function "wait()": implemented support for function's
325          "duration-us" argument, thus scripts using this function are now
326          correctly resumed after the requested amount of microseconds.
327        - Built-in script function "play_note()": implemented support for
328          function's "duration-us" argument, thus notes triggered with this
329          argument are now correctly released after the requested amount of
330          microseconds.
331        - Fix: script events were not cleared when engine channel was reset,
332          potentially causing undefined behavior.
333        - Fixed crash which happened when trying to reference an undeclared
334          variable.
335        - Built-in script function "play_note()": Added support for passing
336          special value -1 for "duration-us" argument, which will cause the
337          triggered note to be released once the original note was released.
338        - Instrument script classes now exported with the liblinuxsampler C++ API.
339        - Added new API method ScriptVM::syntaxHighlighting() which provides
340          a convenient syntax highlighting backend for external instrument
341          script editor applications.
342        - Added new C++ API class "ScriptVMFactory".
343        - Extended parser issues to provide not only first line and first
344          column, but also last line and last column of issue (thus marking
345          the precise span of the issue within the source code).
346        - Reload script automatically after being modified by an instrument
347          editor.
348        - NKSP language grammar correction: allow empty event handler bodies
349          like "on note end on".
350        - Implemented built-in script function "change_vol()".
351        - Implemented built-in script function "change_tune()".
352        - Implemented built-in script function "change_pan()".
353        - Implemented built-in script function "change_cutoff()".
354        - Implemented built-in script function "change_reso()".
355        - Implemented built-in script function "event_status()".
356        - Added built-in script constants "$EVENT_STATUS_INACTIVE" and
357          "$EVENT_STATUS_NOTE_QUEUE" both for being used as flags for
358          "event_status()" function.
359        - NKSP language: Added support for bitwise operators ".or.", ".and."
360          and ".not.".
361        - NKSP language scanner: Fixed IDs matching to require at least one
362          character (i.e. when matching function names or variable names).
363        - NKSP language scanner: disabled unusued rules.
364        - Fixed behavior of play_note() and note_off() functions which must
365          be distinguished engine internally from "real" MIDI note on/off
366          events in order to avoid misbehaviors like hanging notes.
367        - Implemented built-in script variable "$KSP_TIMER".
368        - Implemented built-in script variable "$NKSP_REAL_TIMER".
369        - Implemented built-in script variable "$NKSP_PERF_TIMER".
370        - Implemented built-in script variable "$ENGINE_UPTIME".
371        - Implemented built-in script function "inc()".
372        - Implemented built-in script function "dec()".
373        - NKSP language fix: division expressions were evaluated too often.
374        - NKSP language fix: string concatenation operator was right
375          associative instead of left (to right).
376        - NKSP language correction: allow empty statements in entire language
377          (i.e. "if end if").
378        - Implemented built-in script function "stop_wait()".
379        - Implemented built-in script variable "$NI_CALLBACK_ID".
380        - Implemented built-in script variable "$NI_CALLBACK_TYPE".
381        - Implemented built-in script variable "$NKSP_IGNORE_WAIT".
382        - Added support for read-only built-in variables (respectively
383          handled by the script parser).
384        - Added built-in script constant "$NI_CB_TYPE_INIT".
385        - Added built-in script constant "$NI_CB_TYPE_NOTE".
386        - Added built-in script constant "$NI_CB_TYPE_RELEASE".
387        - Added built-in script constant "$NI_CB_TYPE_CONTROLLER".
388        - NKSP Language: Added support for user defined script functions.
389        - Implemented built-in script function "change_attack()".
390        - Implemented built-in script function "change_decay()".
391        - Implemented built-in script function "change_release()".
392        - Fixed all change_*() built-in script functions to apply their
393          synthesis parameter changes immediately in case the respective note
394          was triggered at the same time, instead of scheduling the parameter
395          change, especially because it would cause some parameter types's
396          changes either to be ramped (i.e. change_vol()) or other types even
397          to have not effect at all (i.e. change_attack()).
398        - Implemented built-in script function "sh_left()".
399        - Implemented built-in script function "sh_right()".
400        - Implemented built-in script function "min()".
401        - Implemented built-in script function "max()".
402        - NKSP Fix: "init" event handler was not always executed when a script
403          was loaded.
404        - NKSP built-in wait() script function: abort script execution if
405          a negative or zero wait time was passed as argument (since this is
406          a common indication of a bug either of the script or even of the
407          engine, which could lead to RT instability or even worse).
408        - ScriptVM: Implemented automatic suspension of RT safety
409          threatening scripts.
410        - Provide more user friendly error messages on syntax errors.
411        - Fixed NKSP parser warning "Not a statement" when assigning an
412          initializer list to an array variable.
413        - Implemented built-in script array variable "%ALL_EVENTS".
414        - Implemented built-in script function "in_range()".
415        - Implemented built-in script function "change_amp_lfo_depth()".
416        - Implemented built-in script function "change_amp_lfo_freq()".
417        - Implemented built-in script function "change_pitch_lfo_depth()".
418        - Implemented built-in script function "change_pitch_lfo_freq()".
419        - Implemented built-in script function "change_vol_time()".
420        - Implemented built-in script function "change_tune_time()".
421        - Implemented built-in script function "fade_in()".
422        - Implemented built-in script function "fade_out()".
423        - Fixed acceptance of wrong data type of parameters passed to built-in
424          script functions "change_vol()", "change_tune()", "change_pan()",
425          "change_cutoff()", "change_reso()", "change_attack()", "change_decay()",
426          "change_release()", "change_amp_lfo_depth()", "change_amp_lfo_freq()",
427          "change_pitch_lfo_depth()" and "change_pitch_lfo_freq()".
428        - Added built-in script function "get_event_par()" and implemented some
429          of its possible parameter selections.
430        - Added built-in script function "set_event_par()" and implemented some
431          of its possible parameter selections.
432        - Fixed a bunch of scheduler time related bugs.
433        - Fixed polyphonic variables not being reset to zero after usage.
434        - Built-in "ignore_event()" function: argument is now optional, like with
435          built-in function "ignore_controller()".
436        - Implemented built-in script function "change_velo()".
437        - Implemented built-in script function "change_note()".
438        - Adjusted behavior of "change_vol()" and "change_tune()" to a more
439          intuitive behavior if used in combination with "change_vol_time()" or
440          "change_tune_time()" respectively: now tuning/volume changes are only
441          assigned (without delay) immediately to a new note if the respective
442          timing function has not been called before, otherwise the volume/tuning
443          changes are automatically faded (before, only the event's time stamp was
444          relevant).
445         - Implemented built-in script function "array_equal()".
446         - Implemented built-in script function "search()".
447         - Implemented built-in script function "sort()".
448         - NKSP Fix: Never suspend "init" event handlers.
449         - Implemented built-in script function "same_region()" (currently only
450           available for gig format engine).
451         - Added built-in script constant "$NKSP_LINEAR".
452         - Added built-in script constant "$NKSP_EASE_IN_EASE_OUT".
453         - Implemented built-in script function "change_vol_curve()".
454         - Implemented built-in script function "change_tune_curve()".
455         - built-in "play_note()" function now supports a sample playback start
456           offset with argument 3, where special value -1 means to use the regular
457           sample offset as defined by the instrument file.
458         - Built-in array variable %KEY_DOWN[] is now a read-only variable.
459         - Built-in variable $EVENT_NOTE is now a read-only variable.
460         - Built-in variable $EVENT_VELOCITY is now a read-only variable.
461         - built-in "play_note()" function now accepts -2 for its fourth argument
462           (note duration) which means the life time of the note shall be sticked
463           to the requested note number of argument 1.
464         - Fix: built-in "play_note()" function now returns 0 as result value if
465           -1 was passed for its fourth argument (note duration) and the respective
466           parent note is already gone.
467        - Implemented built-in script function "change_play_pos()".
468        - NKSP language: Added support for user declared const array variables.
469        - NKSP language: Raise parser warning if array variable is accessed with
470          an index that exceeds the array's size.
471        - NKSP language fix: Unknown characters were not handled correctly.
472        - NKSP language: Added support for "synchronized .. end synchronized"
473          code blocks.
474        - Implemented built-in script function "abort()" which allows to abort
475          another script handler by passing its callback ID.
476        - Fixed potential memory access bug and potential undefined behavior of
477          "init" event handlers.
478        - Print a time stamp along to each call of built-in function "message()".
479        - ScriptVM API: Added VMParserContext::preprocessorComments() which allows
480          to retrieve all code blocks filtered out by the preprocessor.
481        - Added built-in script function "fork()".
482        - Added built-in array variable %NKSP_CALLBACK_CHILD_ID[].
483        - Added built-in variable $NKSP_CALLBACK_PARENT_ID.
484        - Fixed potential crash when accessing dynamic built-in array variables.
485        - Added built-in script function "callback_status()".
486        - Added built-in constant $CALLBACK_STATUS_TERMINATED.
487        - Added built-in constant $CALLBACK_STATUS_QUEUE.
488        - Added built-in constant $CALLBACK_STATUS_RUNNING.
489        - Removed max. value limitation of built-in functions "change_attack()",
490          "change_decay()" and "change_release()" to i.e. allow passing 2000000
491          for doubling the respective time.
492        - NKSP script editor syntax highlighting API: Fixed app termination due
493          to a lexer start condition stack underrun.
494        - NKSP preprocessor: Fixed wrong behavior on nested USE_CODE_IF() and
495          USE_CODE_IF_NOT() preprocessor statements.
496        - NKSP: Added built-in preprocessor condition NKSP_NO_MESSAGE, which
497          can be set to disable all subsequent built-in "message()" function calls
498          on preprocessor level.
499        - Implemented built-in script function "change_sustain()".
500        - NKSP script editor syntax highlighting API: catch all fatal lexer errors,
501          to avoid the editor app to crash on ill-formed text input.
502        - Added built-in script function "change_pan_time()".
503        - Added built-in script function "change_pan_curve()".
504        - Added built-in script function "change_cutoff_attack()".
505        - Added built-in script function "change_cutoff_decay()".
506        - Added built-in script function "change_cutoff_sustain()".
507        - Added built-in script function "change_cutoff_release()".
508        - Added built-in script function "change_cutoff_lfo_depth()".
509        - Added built-in script function "change_cutoff_lfo_freq()".
510    
511      * Instruments DB:
512        - Fixed memory access bug of general DB access code which lead to
513          undefined behavior.
514        - Cleanup of instruments DB file creation and opening code.
515        - The instrument DB path of linuxsampler's --create-instruments-db argument
516          is now optional, if it is missing, then a default location is used.
517        - Added support for scanning SFZ (.sfz) files.
518        - Added support for scanning Sound Font (.sf2) files.
519        - Fixed undefined DB transaction behavior.
520    
521    Version 2.0.0 (15 July 2015)
522    
523      * packaging changes:
524        - fixed building with newer MinGW-w64
525        - Mac OS X: support the new dir for Core Audio SDK
526        - Mac OS X: fixed building outside source directory
527        - made sure all source files for hostplugins are included when
528          doing "make dist"
529        - removed empty directories left from the cvs to svn migration
530        - fixed compilation with gcc 4.6.1
531        - another "make dist" fix, for the LV2 plugin
532        - made --enable-pthread-testcancel default on Mac OS X
533        - minor Makefile fix for building lscpparser when build and source
534          directories are separate
535        - Mac OS X: made it possible to specify plugin installation dir to
536          configure
537        - Mac OS X: Makefile fix for the install-strip target
538        - fixed compilation with gcc 4.7
539        - fixed configure script error with old autoconf versions
540        - lsatomic.h: use gcc provided atomic functions if building with
541          gcc 4.7 and C++11
542        - modernized configure script
543        - fixed linkage error when building with
544          LDFLAGS="-Wl,--no-undefined" (#190)
545        - fixed compilation with Clang 3.2
546        - removed usage of deprecated Automake variable INCLUDES
547        - fixed building with C++11
548        - build fix: ChangeFlagRelaxed.h was missing in makefile
549        - build fix: libsndfile compiler flags were missing in some
550          makefiles
551        - fix for building with bison 3.0 (#202)
552        - Mac OS X: added temporary hack allowing to spawn gigedit as callback
553          on the process's main thread
554        - fixed build error on newer MinGW
555        - support building with older jack versions
556        - support building with spaces in vst sdk path
557        - enabled automake 'subdir-objects' option and moved external
558          source references (vst, au, asio) from makefiles to cpp files,
559          in order to get rid of warnings from automake 1.14
560    
561      * general changes:
562        - Refactoring: moved the independent code from
563          the Gigasampler format engine to base classes
564        - command line option '--profile' is currently disabled, since the
565          respective profiling code is currently broken
566        - Introduced support for optional environment variable
567          "LINUXSAMPLER_PLUGIN_DIR" which allows to override the directory
568          where the sampler shall look for instrument editor plugins
569          (patch by Luis Garrido, slightly modified).
570        - implemented Roland GS NRPN 1ArrH which allows to set volume per note
571        - implemented Roland GS NRPN 1CrrH which allows to set pan per note
572        - implemented Roland GS NRPN 1DrrH which allows to set reverb send per
573          note (in this implementation of the sampler its simply hard routed to
574          the 1st effect send of the sampler channel, no matter what the actual
575          effect type is)
576        - implemented Roland GS NRPN 1ErrH which allows to set chorus send per
577          note (in this implementation of the sampler its simply hard routed to
578          the 2nd effect send of the sampler channel, no matter what the actual
579          effect type is)
580        - implemented support for internal LADSPA effects
581        - raised limit of program change queue from 100 to 512
582          (as suggested by Alex Stone)
583        - implemented sine LFO, pulse LFO and saw LFO
584        - experimental support for per voice equalization
585        - added command line option --exec-after-init
586        - Introduced new C++ API method:
587          EngineChannel::InstrumentFileName(int index)
588          allowing to retrieve the whole list of files used for the loaded
589          instrument on an engine channel (a.k.a. part). Some GigaStudio
590          instruments for example are splitted over several files like
591          "Foo.gig", "Foo.gx01", "Foo.gx02", ...
592        - Added new C++ API method Sampler::GetGlobalMaxVoices().
593        - Added new C++ API method Sampler::GetGlobalMaxStreams().
594        - Added new C++ API method Sampler::SetGlobalMaxVoices().
595        - Added new C++ API method Sampler::SetGlobalMaxStreams().
596        - Various "const" and "restrict" optimizations.
597        - all engines: add pan CC value to instrument pan parameter before
598          applying panning, instead of using two separate pan functions in
599          series (#182)
600        - added a lock guard class for exception safe mutex handling and
601          used it everywhere appropriate
602        - Immediately apply scale tuning changes to active voices.
603        - Exposed scale tuning to C++ API (along to the already existing standard
604          SysEx way).
605        - lsatomic.h fixes: seq_cst load and store were suboptimal for x86
606          and broken for ppc64. (Seq_cst loads and stores are actually not
607          used in LS, so the bug wasn't noticable.)
608        - lsatomic.h: added ARMv7 support
609        - Added support for multiple MIDI input ports per sampler channel (and
610          added various new C++ methods for this new feature / design change, old
611          C++ API methods for managing SamplerChannel's MIDI inputs are now marked
612          as deprecated but are still there and should provide full behavior
613          backward compatibility).
614        - AbstractEngine::GSChecksum(): don't allocate memory on the stack (was
615          unsafe and caused compilation error with clang 2.x).
616        - Bugfix: only process the latest MIDI program change event.
617        - Introducing the LSCP shell, which provides convenient control of the
618          sampler from the command line by providing LSCP aware features.
619        - VirtualMidiDevice: Added support for program change.
620        - VirtualMidiDevice: Added support for bank select (MSB & LSB).
621        - VirtualMidiDevice: Added support for pitch bend.
622        - Aftertouch: extended API to explicitly handle channel pressure and
623          polyphonic key pressure events (so far polyphonic pressure was not
624          supported at all, and channel pressure was rerouted as CC128 but not
625          used so far).
626        - Added initial support for real-time instrument scripts. The script VM
627          code is shared by all sampler engine implemementations, however only the
628          gig file format currently provides support for storing instrument scripts
629          (as LinuxSampler extension to the original GigaStudio 4 format).
630    
631      * Gigasampler format engine:
632        - implemented the "round robin keyboard" dimension
633        - fixed round robin and random dimensions for cases when number of
634          dimension zones is not a power of two
635        - made round robin use a counter for each region instead of each
636          key
637        - bugfix: pitch LFO controller "internal+aftertouch" was broken
638        - bugfix: filter keyboard tracking was broken
639        - filter performance fix (an unnecessary copy was made of the
640          filter parameters in each sub fragment)
641        - handle special case when pan parameter in gig file has max or
642          min value
643        - Exclusive Groups: don't ever stop voices of the same note,
644          doesn't sound naturally with a drumkit
645        - fixed EG1 modulation when attack or release is zero
646        - Fixed support for 'aftertouch' attenuation controller.
647        - Fixed crash that happened with velocity split sounds under certain
648          conditions (see also previous commit on libgig).
649        - fixed behaviour of filter LFO
650    
651      * SFZ format engine:
652        - Initial implementation (not usable yet)
653        - added support for v2 multiple stage envelope generators
654        - added a fine-tuned v1 envelope generator instead of using the
655          one from the gig engine
656        - fixed memory leak and memory handling errors
657        - added support for trigger=first, trigger=legato and sw_previous
658        - allow non-numerical key values ("C#4" for example)
659        - "key" opcode now sets pitch_keycenter too
660        - fixed error when unloading instrument with same sample used by
661          multiple regions
662        - added some opcode aliases, like loopmode for loop_mode, to be
663          more compatible
664        - added support for trigger=release and rt_decay
665        - added support for off_mode=normal
666        - added support for random, seq_position, seq_length and volume
667        - added v1 LFO opcodes to parser (no support in engine yet)
668        - added support for amp_veltrack and amp_velcurve_N
669        - fine-tuned the default velocity curve
670        - added support for transpose
671        - fixed crash when using sw_down/up
672        - improved logic for sw_lokey/hikey/up/down/last
673        - added more v1 aliases to parser
674        - reduced memory usage for sfz data
675        - RT-safeness: avoid malloc in audio thread
676        - fixed a bug that could cause voice stealing to fail
677        - optimized sample lookup
678        - improved support for exclusive groups (group, off_by and
679          off_mode)
680        - added support for controller triggered regions (on_locc/on_hicc)
681        - added support for loop_mode=one_shot
682        - fixed playback of 16 bit wav files on big endian CPUs
683        - added support for Ogg Vorbis sample files
684        - use loop markers from sample file if loop_start and loop_end are
685          not set in sfz file
686        - implemeted filters. Filter types: lowpass, bandpass, bandreject
687          and highpass. 1, 2, 4 and 6 pole filters. Opcodes: fil_type,
688          cutoff, resonance, fil_veltrack, fil_keytrack, fil_keycenter,
689          cutoff_cc, cutoff_chanaft.
690        - bugfix: zero ampeg_sustain didn't work
691        - added support for velocity effect on amplifier envelope time
692          (ampeg_vel2attack, ampeg_vel2decay, ampeg_vel2sustain and
693          ampeg_vel2release)
694        - added support for EG hold (ampeg_hold)
695        - added support for sample offset (offset)
696        - use the newly introduced signal units model
697        - implemented opcodes lfoN_delay,
698          lfoN_freq, lfoN_pan, lfoN_cutoff, lfoN_resonance
699        - implemented opcodes ampeg_delay, ampeg_vel2delay
700          pitcheg_delay, pitcheg_start, pitcheg_attack, pitcheg_hold,
701          pitcheg_decay, pitcheg_sustain, pitcheg_release, pitcheg_vel2delay,
702          pitcheg_vel2attack, pitcheg_vel2hold, pitcheg_vel2decay,
703          pitcheg_vel2sustain, pitcheg_vel2release, pitcheg_depth
704        - implemented opcodes pitchlfo_delay, pitchlfo_freq,
705          pitchlfo_depth, fillfo_delay, fillfo_freq, fillfo_depth,
706          amplfo_delay, amplfo_freq, amplfo_depth
707        - implemented opcodes fileg_delay, fileg_start, fileg_attack,
708          fileg_hold, fileg_decay, fileg_sustain, fileg_release, fileg_vel2delay,
709          fileg_vel2attack, fileg_vel2hold, fileg_vel2decay, fileg_vel2sustain,
710          fileg_vel2release
711        - implemented opcode lfoN_wave
712        - implemented opcode pitchlfo_depthccN
713        - implemented opcodes lfoN_phase, lfoN_phase_onccX,
714          lfoN_pitch, lfoN_pitch_onccX
715        - implemented opcodes pitchlfo_fade,
716          fillfo_fade, amplfo_fade, lfoN_fade, lfoN_fade_onccX
717        - implemented opcodes fillfo_freqccN,
718          pitchlfo_freqccN, amplfo_freqccN, lfoN_freq_onccX
719        - implemented opcodes ampeg_delayccN, ampeg_startccN,
720          ampeg_attackccN, ampeg_holdccN, ampeg_decayccN, ampeg_sustainccN,
721          ampeg_releaseccN, egN_timeX_onccY, egN_levelX_onccY
722        - lfoN_* and egN_* opcodes defined in group sections
723          are now taken into account
724        - implemented curves
725        - implemented opcodes volume_onccN, volume_curveccN
726        - implemented opcode volume_smoothccN
727        - implemented opcodes fillfo_depthccN, amplfo_depthccN,
728          lfoN_volume, lfoN_volume_onccX, lfoN_volume_smoothccX,
729          lfoN_freq_smoothccX, lfoN_pitch_smoothccX, lfoN_pan_onccX,
730          lfoN_pan_smoothccX, lfoN_cutoff_onccX, lfoN_cutoff_smoothccX,
731          lfoN_resonance_onccX, lfoN_resonance_smoothccX, lfoN_delay_onccX
732        - implemented opcode end
733        - implemented opcodes egN_amplitude_onccX,
734          egN_volume, egN_volume_onccX, egN_cutoff, egN_cutoff_onccX,
735          egN_pitch, egN_pitch_onccX, egN_resonance, egN_resonance_onccX
736        - implemented opcodes xfin_lokey, xfin_hikey,
737          xfout_lokey, xfout_hikey, xf_keycurve, xfin_lovel, xfin_hivel,
738          xfout_lovel, xfout_hivel, xf_velcurve, xfin_loccN, xfin_hiccN,
739          xfout_loccN, xfout_hiccN, xf_cccurve
740        - implemented opcodes pan_onccN, pan_smoothccN,
741          pan_curveccN, egN_pan, egN_pan_curve, egN_pan_onccX,
742          egN_pan_curveccX, pitch_veltrack
743        - when failed to parse a sfz file
744          print the line number on which the error occurs
745        - use common pool of CC objects to minimize RAM usage
746        - implemented opcodes amplfo_delay_onccN,
747          amplfo_fade_onccN, fillfo_delay_onccN, fillfo_fade_onccN,
748          pitchlfo_delay_onccN, pitchlfo_fade_onccN
749        - implemented opcodes fileg_delay_onccN,
750          fileg_start_onccN, fileg_attack_onccN, fileg_hold_onccN,
751          fileg_decay_onccN, fileg_sustain_onccN, fileg_release_onccN,
752          fileg_depth_onccN, pitcheg_delay_onccN, pitcheg_start_onccN,
753          pitcheg_attack_onccN, pitcheg_hold_onccN, pitcheg_decay_onccN,
754          pitcheg_sustain_onccN, pitcheg_release_onccN, pitcheg_depth_onccN
755        - implemented automatic aliasing *ccN <-> *_onccN
756        - *lfo_freqccN wasn't working when the respective *lfo_freq
757          was not set or was set to zero
758        - lfoN_freq_onccX wasn't working when lfoN_freq
759          was not set or was set to zero
760        - implemented opcodes resonance_onccN, resonance_smoothccN,
761          resonance_curveccN, cutoff_smoothccN, cutoff_curveccN
762        - implemented opcodes fillfo_depthchanaft,
763          fillfo_freqchanaft, amplfo_depthchanaft, amplfo_freqchanaft,
764          pitchlfo_depthchanaft, pitchlfo_freqchanaft
765        - implemented opcodes pitch_onccN,
766          pitch_curveccN, pitch_smoothccN, pitch_stepccN
767        - implemented opcodes volume_stepccN, pan_stepccN,
768          cutoff_stepccN, resonance_stepccN, lfoN_freq_stepccX,
769          lfoN_volume_stepccX, lfoN_pitch_stepccX, lfoN_pan_stepccX,
770          lfoN_cutoff_stepccX, lfoN_resonance_stepccX
771        - implemented opcodes eq1_freq, eq2_freq, eq3_freq,
772          eq1_freqccN, eq2_freqccN, eq3_freqccN, eq1_bw, eq2_bw, eq3_bw,
773          eq1_bwccN, eq2_bwccN, eq3_bwccN, eq1_gain, eq2_gain, eq3_gain,
774          eq1_gainccN, eq2_gainccN, eq3_gainccN
775        - implemented opcodes delay, delay_onccN, delay_random,
776          delay_samples, delay_samples_onccN
777        - implemented opcodes egN_eq1gain, egN_eq2gain, egN_eq3gain,
778          egN_eq1gain_onccX, egN_eq2gain_onccX, egN_eq3gain_onccX, egN_eq1freq,
779          egN_eq2freq, egN_eq3freq, egN_eq1freq_onccX, egN_eq2freq_onccX,
780          egN_eq3freq_onccX, egN_eq1bw, egN_eq2bw, egN_eq3bw, egN_eq1bw_onccX,
781          egN_eq2bw_onccX, egN_eq3bw_onccX, lfoN_eq1gain, lfoN_eq2gain,
782          lfoN_eq3gain, lfoN_eq1gain_onccX, lfoN_eq2gain_onccX, lfoN_eq3gain_onccX,
783          lfoN_eq1gain_smoothccX, lfoN_eq2gain_smoothccX, lfoN_eq3gain_smoothccX,
784          lfoN_eq1gain_stepccX, lfoN_eq2gain_stepccX, lfoN_eq3gain_stepccX,
785          lfoN_eq1freq, lfoN_eq2freq, lfoN_eq3freq, lfoN_eq1freq_onccX,
786          lfoN_eq2freq_onccX, lfoN_eq3freq_onccX, lfoN_eq1freq_smoothccX,
787          lfoN_eq2freq_smoothccX, lfoN_eq3freq_smoothccX, lfoN_eq1freq_stepccX,
788          lfoN_eq2freq_stepccX, lfoN_eq3freq_stepccX, lfoN_eq1bw, lfoN_eq2bw,
789          lfoN_eq3bw, lfoN_eq1bw_onccX, lfoN_eq2bw_onccX, lfoN_eq3bw_onccX,
790          lfoN_eq1bw_smoothccX, lfoN_eq2bw_smoothccX, lfoN_eq3bw_smoothccX,
791          lfoN_eq1bw_stepccX, lfoN_eq2bw_stepccX, lfoN_eq3bw_stepccX
792        - implemented opcodes eq1_vel2freq, eq2_vel2freq,
793          eq3_vel2freq, eq1_vel2gain, eq2_vel2gain, eq3_vel2gain
794        - sfz parser: allow double spaces in sample filenames
795        - sfz parser: allow absolute paths for sample filenames
796        - use linear decay and release for filter and pitch EG
797        - bugfix: only the first amp_veltrack definition in a file was
798          used
799        - bugfix: looping was disabled if loop_start was set to 0
800        - allow regions with end=-1 to turn off other regions using the
801          group and off_by opcodes (#168)
802        - made end=0 play the whole sample
803        - fixed support for lochan and hichan opcodes (#155)
804        - fixed crash when using lochan/hichan opcodes (#187)
805        - sfz parser: allow -200 to 200 for pan_oncc opcode (#182)
806        - added FLAC support (#191)
807        - sfz parser bugfix: lines starting with whitespace were ignored
808        - added amplitude opcode
809        - added support for "#include" instruction
810          (modified patch which was originally posted by Sergey on LS mailing list)
811        - bugfix: generation of velocity curves etc should not be done
812          after each "#include", only after the main file is parsed
813        - bugfix: line numbers in error messages were wrong after "#include"
814        - added support for float and 32 bit sample files
815    
816      * SoundFont format engine:
817        - Initial implementation (not usable yet)
818        - RT-safeness: avoid malloc in audio thread
819        - fixed a bug that could cause voice stealing to fail
820        - fine-tuned amplitude EG (by switching from gig to sfz EG)
821        - initial implementation of Vibrato LFO and Modulation LFO
822        - initial implementation of cutoff filter
823        - use linear decay and release for filter and pitch EG
824    
825      * Host plugins (VST, AU, LV2, DSSI):
826        - AU bugfix: failed to destroy its audio/MIDI devices
827        - Listen to all interfaces on Mac OS X (INADDR_ANY)
828        - VST bugfix: If the host called resume() before and after
829          changing sample rate or block size, the number of channels was
830          incorrectly set to two. This caused silence in Cubase 5.
831        - save engine type (gig, sfz or sf2) in plugin state
832        - VST: when opening Fantasia, look for both 32 and 64 bit Java on
833          64 bit Windows
834        - AU: changed number of output channels from one stereo to 16
835          stereo
836        - VST: made it possible to build the VST plugin for Mac
837        - AU: link AU plugin dynamically if --disable-shared isn't
838          specified
839        - LV2 "state" extension support (patch by David Robillard)
840        - VST bugfix: instrument loading hang and crashed the host when
841          the plugin was loaded a second time (#174)
842        - plugin bugfix: instrument loading hang when the plugin was
843          loaded a second time (this time it's for Linux and Mac, previous
844          similar fix was for Windows)
845        - thread safety fixes for the instrument loading thread
846        - LV2: use the new lv2 package if present
847        - VST: try to open Fantasia automatically on Linux and Mac too (on
848          Linux, the Fantasia jar should be placed in <prefix>/share/java)
849        - VST: fixed crashes on Linux Ardour and EnergyXT
850        - DSSI bugfix: it wasn't possible to change engine type. The MIDI
851          port and audio channel routing for DSSI plugins are now visible.
852        - LV2: use urid and atom extensions instead of deprecated uri-map
853          and event
854        - LV2: lv2 package 1.0 is now required to build the LV2 plugin
855        - LV2: changed number of output channels to 16 stereo, just like
856          the VST and AU plugins
857        - LV2: fixed save/restore of SFZ state (patch by David Robillard)
858        - LV2: made LV2 plugin buildable on Windows and Mac
859        - VST: implemented retrieval and switching of programs using the
860          sampler's internal MIDI instrument mapping system
861    
862      * Instrument editor interface:
863        - Changed instrument editor plugin interface, providing additional
864          informations like the EngineChannel for which the instrument editor was
865          spawned for. This allows the instrument editors to interact more actively
866          with the sampler.
867    
868      * MIDI driver:
869        - ALSA MIDI driver supports now "NAME" device parameter, for overriding
870          the ALSA sequencer client name
871        - removed limit of maximum amount of MIDI ports per MIDI device, since
872          there is no reason for this limit
873        - MME: fixed memory handling bug found with cppcheck
874        - MME: removed compiler warning
875        - CoreMIDI: implemented driver specific port parameter "CORE_MIDI_BINDINGS",
876          which allows to retrieve the list of CoreMIDI clients / ports and to connect
877          to them a la JACK, via the usual sampler APIs
878        - CoreMIDI: added driver specific port parameter "AUTO_BIND", if enabled
879          the driver will automatically connect to other CoreMIDI clients' ports
880          (e.g. external MIDI devices being attached to the Mac)
881        - added support for MIDI note on velocity filter
882        - CoreMIDI: fixed memory deallocation error
883        - Fixed variable underflow in VirtualMidiDevice, which caused graphical
884          virtual keyboards in frontends / instrument editors being stuck.
885        - Bugfix in VirtualMidiDevice: process note on with velocity 0 as note off.
886        - Implemented missing handling of MIDI "running status".
887        - CoreMIDI fix: a MIDIPacket can contain more than one event per packet.
888        - MME bugfix: driver wasn't closed properly
889        - CoreMIDI: automatically connect to all input sources by default (driver
890          parameter "AUTO_BIND").
891        - CoreMIDI: fixed auto bind feature to CoreMIDI ports that go online
892        - CoreMIDI: fixed minor memory leak
893    
894      * audio driver:
895        - ASIO driver fixes for newer gcc versions (fix from PortAudio)
896        - JACK audio: react on sample rate changes.
897        - JACK audio: react on buffer size changes.
898        - JACK audio: jack_port_get_buffer() was cached and called outside
899          RT context.
900        - ASIO driver: removed compiler warnings
901        - CoreAudio: fixed minor error handling bug
902        - ASIO driver: be more verbose when no ASIO card could be found (fixes #203)
903        - JACK audio: return the JACK server's current sample rate as default value
904          for audio device parameter "SAMPLERATE" (fixes #166).
905    
906      * LSCP server:
907        - added support for sending MIDI CC messages via LSCP command
908          "SEND CHANNEL MIDI_DATA CC <sampler-chan> <ctrl> <val>"
909        - added LSCP command "GET AVAILABLE_EFFECTS"
910        - added LSCP command "LIST AVAILABLE_EFFECTS"
911        - added LSCP command "GET EFFECT INFO <effect-index>"
912        - added LSCP command "CREATE EFFECT_INSTANCE <effect-index>"
913        - added LSCP command
914          "CREATE EFFECT_INSTANCE <effect-system> <module> <effect-name>"
915        - added LSCP command "DESTROY EFFECT_INSTANCE <effect-instance>"
916        - added LSCP command "GET EFFECT_INSTANCES"
917        - added LSCP command "LIST EFFECT_INSTANCES"
918        - added LSCP command "GET EFFECT_INSTANCE INFO <effect-instance>"
919        - added LSCP command
920          "GET EFFECT_INSTANCE_INPUT_CONTROL INFO <effect-instance> <input-control>"
921        - added LSCP command "SET EFFECT_INSTANCE_INPUT_CONTROL VALUE
922          <effect-instance> <input-control> <value>"
923        - added LSCP command "GET SEND_EFFECT_CHAINS <audio-device>"
924        - added LSCP command "LIST SEND_EFFECT_CHAINS <audio-device>"
925        - added LSCP command "ADD SEND_EFFECT_CHAIN <audio-device>"
926        - added LSCP command
927          "REMOVE SEND_EFFECT_CHAIN <audio-device> <effect-chain>"
928        - added LSCP command
929          "GET SEND_EFFECT_CHAIN INFO <audio-device> <effect-chain>"
930        - added LSCP command "APPEND SEND_EFFECT_CHAIN EFFECT <audio-device>
931          <effect-chain> <effect-instance>"
932        - added LSCP command "INSERT SEND_EFFECT_CHAIN EFFECT <audio-device>
933          <effect-chain> <effect-chain-pos> <effect-instance>"
934        - added LSCP command "REMOVE SEND_EFFECT_CHAIN EFFECT <audio-device>
935          <effect-chain> <chain-pos>"
936        - added LSCP command "SET FX_SEND EFFECT <sampler_channel>
937          <fx_send_id> <effect_chain> <chain_pos>"
938        - added LSCP command "REMOVE FX_SEND EFFECT <sampler_channel> <fx_send_id>"
939        - added LSCP commands "SUBSCRIBE EFFECT_INSTANCE_COUNT",
940          "SUBSCRIBE EFFECT_INSTANCE_INFO", "SUBSCRIBE SEND_EFFECT_CHAIN_COUNT",
941          "SUBSCRIBE SEND_EFFECT_CHAIN_INFO"
942        - provide comprehensive error messages on LSCP syntax errors
943          (suggesting expected next non-terminal symbols)
944        - Fixed client connection not being closed after network errors.
945    
946      * LSCP shell:
947        - Added support for auto correction of obvious and trivial syntax mistakes.
948        - Added support for auto completion by tab key.
949        - Show currently available auto completion while typing.
950        - Added support for browsing command history with up / down keys.
951        - Show all possible next symbols immediately right to the current command
952          line while typing (no double tab required for this feature, as it would
953          be the case in other shells).
954        - Added support for moving cursor left/right with arrow keys.
955        - Added support for built-in LSCP reference documentation, which will
956          automatically show the relevant LSCP reference section on screen as soon
957          as one specific LSCP command was detected while typing on the command
958          line.
959    
960      * Real-time instrument scripts:
961        - Implemented built-in script array variable %CC.
962        - Implemented built-in script int variable $CC_NUM.
963        - Implemented built-in script int variable $EVENT_NOTE.
964        - Implemented built-in script int variable $EVENT_VELOCITY.
965        - Implemented built-in script constant variable $VCC_MONO_AT.
966        - Implemented built-in script constant variable $VCC_PITCH_BEND.
967        - Implemented execution of script event handler "init".
968        - Implemented execution of script event handler "controller".
969        - Implemented execution of script event handler "note".
970        - Implemented execution of script event handler "release".
971        - Implemented built-in script function "play_note()" (only two of the
972          max. four function arguments are currently implemented yet though).
973        - Implemented built-in script int variable $EVENT_ID.
974        - Implemented built-in script function "ignore_event()"
975        - Implemented built-in script function "ignore_controller()" (may have one
976          or no argument).
977        - Implemented built-in script function "set_controller()".
978        - Added extended script VM for the Gigasampler/GigaStudio format sampler
979          engine, which extends the general instrument script VM with Giga format
980          specific variables and functions.
981        - Giga format scripts: added built-in script int constant variables
982          $GIG_DIM_CHANNEL, $GIG_DIM_LAYER, $GIG_DIM_VELOCITY, $GIG_DIM_AFTERTOUCH,
983          $GIG_DIM_RELEASE, $GIG_DIM_KEYBOARD, $GIG_DIM_ROUNDROBIN, $GIG_DIM_RANDOM,
984          $GIG_DIM_SMARTMIDI, $GIG_DIM_ROUNDROBINKEY, $GIG_DIM_MODWHEEL,
985          $GIG_DIM_BREATH, $GIG_DIM_FOOT, $GIG_DIM_PORTAMENTOTIME, $GIG_DIM_EFFECT1,
986          $GIG_DIM_EFFECT2, $GIG_DIM_GENPURPOSE1, $GIG_DIM_GENPURPOSE2,
987          $GIG_DIM_GENPURPOSE3, $GIG_DIM_GENPURPOSE4, $GIG_DIM_SUSTAIN,
988          $GIG_DIM_PORTAMENTO, $GIG_DIM_SOSTENUTO, $GIG_DIM_SOFT,
989          $GIG_DIM_GENPURPOSE5, $GIG_DIM_GENPURPOSE6, $GIG_DIM_GENPURPOSE7,
990          $GIG_DIM_GENPURPOSE8, $GIG_DIM_EFFECT1DEPTH, $GIG_DIM_EFFECT2DEPTH,
991          $GIG_DIM_EFFECT3DEPTH, $GIG_DIM_EFFECT4DEPTH, $GIG_DIM_EFFECT5DEPTH.
992        - Giga format scripts: Implemented built-in script function
993          "gig_set_dim_zone(event_id, dimension, zone)".
994        - Implemented built-in script int array variable %KEY_DOWN.
995        - Implemented built-in script function "abs()".
996        - Implemented built-in script function "random()".
997        - Implemented built-in script function "num_elements()".
998        - Implemented built-in script function "note_off()".
999        - Implemented built-in script function "set_event_mark()".
1000        - Implemented built-in script function "delete_event_mark()".
1001        - Implemented built-in script function "by_marks()".
1002        - Added built-in script int const variables $MARK_1 to $MARK_28.
1003        - Built-in script functions "ignore_event()", "note_off()" and
1004          "gig_set_dim_zone()" now also accept an array of event IDs as argument
1005          (i.e. return value of new script function "by_marks()").
1006        - Pass/preserve polyphonic variable data from respective "note" event
1007          handler to "release" event handler.
1008        - Fixed crash when using built-in script function "by_marks()".
1009    
1010      * Bug fixes:
1011        - Fixed crash which may occur when MIDI key + transpose is out of range
1012        - minor valgrind fixes
1013        - fixed crash which occurred when changing an already deployed sampler
1014          channel to a different engine type
1015        - fixed crash when deleting a sampler channel or changing engine
1016          type while an instrument load was in progress
1017        - bugfix: playing a note while changing the instrument could cause
1018          a crash, or give "Handing back unknown region" error messages
1019        - bugfix: calling SET VOICES (which Fantasia does on start and
1020          refresh) could cause instruments to be unloaded
1021        - Mac OS X: fixed name collision of enum in EffectControl and
1022          wrong name of destructor in AudioOutputDeviceCoreAudio.cpp
1023        - Mac OS X: fixed hanging threads
1024        - Windows: disabled the previous thread fix on non-Mac systems, as
1025          it caused hanging threads on Windows
1026        - Fixed possible crashes due to corrupted MIDI/audio device list
1027          after MIDI/audio device creation failure
1028        - When creating MIDI instrument map entries with "PERSISTENT" type, the
1029          instruments were uselessly precached with zero samples, however it still
1030          took the full preloading time and on 1st program change the respective
1031          instrument was completely reloaded again.
1032        - fixed handling of rapid bank select and program change messages
1033          sent to the same sampler channel (patch from the Open Octave
1034          project, slightly adjusted)
1035        - fixed crash when trying to create an effect instance with controls
1036          which min and/or max values depend on the sample rate
1037        - fixed bug #162
1038        - bugfix: LADSPA_PATH was not evaluated correctly when containing
1039          multiple paths (#165)
1040        - thread safety fixes for the instrument loading thread
1041        - bugfix: instrument loading crashed for sfz and sf2 in Ardour
1042          (#176)
1043        - more thread safety fixes for the instrument loading thread
1044        - sfz/sf2 engine: fixed crash when using small audio fragment size
1045        - Mac OS X: fixed crash when unloading plugin on 10.7 and later
1046        - Mac OS X: fixed process hang when unloading 32-bit plugin (bug
1047          introduced in previous fix)
1048        - fixed crash when a channel received a program change while
1049          playing a note in a key group
1050        - fixed erroneous error message piping in VoiceBase.h
1051          (labelled "Disk stream not available in time")
1052        - Update effects on sample rate & period size changes (to avoid
1053          crashes and noise on such transitions).
1054        - ignore missing LADSPA paths without ignoring valid LADSPA paths
1055          (fixes #208)
1056        - Fixed bug in LSCP grammar definition which caused a statement like
1057          "GET SERVER INFOasdf\n" to be accepted as valid statement (was so far
1058          practically irrelevant, however it caused problems with the new LSCP
1059          shell's auto completion feature).
1060        - Fixed MIDI program change messages being ignored if quickly executed
1061          after each other (fixes #231).
1062    
1063    Version 1.0.0 (31 July 2009)
1064    
1065      * packaging changes:
1066        - autoconf bugfix: the PKG_CONFIG variable wasn't initialized properly,
1067          causing e.g. the libgig test to fail when
1068          "./configure --disable-jack-driver" was used
1069          (patch by Alexis Ballier)
1070        - fixed compilation with gcc 4.3
1071        - fixes for building on OS X (thanks to Ebrahim Mayat for testing)
1072        - fixed configure so it detects x86_64 (#107)
1073        - fixes for building with newer MinGW versions
1074        - fix for building with bison 2.4 (#111)
1075        - fixed building with libgig installed in a non-standard directory
1076        - minor fix in configure for mmsystem.h detection on MinGW
1077        - Windows: look for editor plugins and Fantasia using base
1078          directory of liblinuxsampler dll (look in the same directory and one
1079          directory above)
1080        - configure script fix: removed unconditional use of SSE
1081        - fixed building with sqlite installed in a non-standard directory
1082        - when cross-compiling, don't try to create instruments.db
1083        - fix for new mingw-w64 version, which has usleep
1084    
1085      * general changes:
1086        - bugfix: on some POSIX systems instrument editor plugins refused to
1087          load as we used a non-portable Linux specific struct field
1088          (fixes bug #70, patch by Ronald Baljeu)
1089        - fixed endless loop which occured when loading an instrument editor
1090          plugin DLL on Windows systems failed
1091        - fixed memory leaks that occurred when liblinuxsampler was unloaded
1092        - optimized the SynchronizedConfig class so it doesn't wait
1093          unnecessarily long after an update
1094        - added support for notifying instrument editors on note-on / note-off
1095          events (e.g. to highlight the pressed keys on the virtual keyboard
1096          of gigedit)
1097        - added support for triggering notes by instrument editors (see above)
1098        - be verbose on DLL load errors (on Linux)
1099        - fixed di-harmonic triangle LFO implementation (this LFO implementation
1100          is only used by very few systems, most pick the int math
1101          implementation, which is usually faster)
1102        - fixes for audio drivers with varying buffer sizes
1103        - experimental support for running LinuxSampler as a DSSI, LV2 and
1104          VST plugin
1105        - notification events for stream/voice count statistics are now sent
1106          only when there are actual changes
1107        - added memory ordering constraints to improve stability on
1108          multi-core and multi-cpu systems
1109        - maximum voices and disk streams can now be altered at runtime
1110        - fixed CPU feature detection on x86_64 (maybe fixes #108)
1111        - automatic stacktrace mechanism is now turned off by default and can
1112          be switched on by command line option "--stacktrace" (the automatic
1113          stacktrace mechanism seems to be broken on most systems at the moment)
1114        - C++ API method InstrumentManager::LaunchInstrumentEditor() now returns
1115          a pointer to the launched InstrumentEditor object
1116        - added optional 3rd party user data parameter for following
1117          liblinuxsampler C++ API methods: InstrumentEditor::Main(),
1118          InstrumentEditor::Launch(),
1119          InstrumentManager::LaunchInstrumentEditor()
1120        - theoretical fix: made SynchronizedConfig follow C++0x memory
1121          model more strictly
1122        - fixes for using large audio device buffers
1123        - Windows: add the installation directory to the DLL search path
1124          when loading an editor plugin (solves problems with VST and
1125          gigedit on systems with other GTK versions installed)
1126        - updated linuxsampler man page
1127    
1128      * audio driver:
1129        - removed the nonsense audio channel constraint (which was hard coded to
1130          max. 100 audio channels) for most audio drivers
1131        - JACK audio driver did not offer a device parameter "SAMPLERATE" as
1132          opposed to the LSCP specs
1133        - bugfix: the SAMPLERATE parameter of some drivers (e.g. JACK)
1134          reflected the wrong value
1135        - fixed a memory management bug in ASIO driver
1136        - Makefile fix: JACK_CFLAGS wasn't used
1137        - JACK: use jack_client_open instead of the deprecated
1138          jack_client_new
1139        - added (experimental) CoreAudio driver
1140        - applied old fixes to the ASIO driver that were included in the
1141          previous binary release but accidentally never committed to CVS
1142          (fixes #117)
1143        - fixes for ASIO on mingw-w64 (iasio wrapper is not needed on
1144          win64)
1145        - VST: added support for sample rate and buffer size changes
1146        - VST: close editor (Fantasia) when the VST is removed
1147        - VST: avoid opening Fantasia more than once for each VST instance
1148        - VST: export main function as "main" on Linux too (fix for
1149          energyXT)
1150        - VST: changed number of output channels from one stereo to 16
1151          stereo
1152        - added channel routing, fxsends and midi maps to the settings
1153          stored in the plugin state
1154        - performance optimization of AudioChannel::MixTo() and
1155          AudioChannel::CopyTo() methods using GCC vector exensions
1156          (if available)
1157        - ASIO fixes: avoid initializing the device twice, avoid throwing
1158          exception when getting parameters from a disconnected device
1159    
1160      * MIDI driver:
1161        - added JACK MIDI driver
1162        - dispatch bank select as ordinary CC as well, the user might seriously
1163          want to (mis)use it for some purpose ("fixed" in all current MIDI
1164          input drivers: ALSA, CoreMIDI, JACK, MidiShare, MME)
1165        - bugfix: pitch bend wasn't working with JackMidi, VST, LV2, MME,
1166          CoreMidi or AU
1167        - fixed mingw-w64 compilation error in MME driver
1168        - made program change handling in MIDI thread real-time safe by
1169          moving the logic to a non-RT thread
1170        - fixed minor memory leak in ALSA driver
1171    
1172      * instruments database:
1173        - avoid time consuming samples scanning when adding instruments
1174          to the instruments database
1175        - added support for handling lost files in the instruments database
1176        - Implemented option for adding instruments in separate directories
1177          in the instruments database
1178          (patch by Chris Cherrett & Andrew Williams, a bit adjusted)
1179        - work-around for missing fnmatch function on Windows to make
1180          instrument database compilable
1181        - added instrument database support on Windows
1182          works with both standalone mode and VST plugin.
1183          the instruments DB file is located in
1184          %USERPROFILE%\.linuxsampler\instruments.db which allows different
1185          databases for each windows user
1186          if no DB is present it automatically creates the .linuxsampler subdir
1187          and then creates an empty DB
1188        - fixed recursive import, which was broken on Windows
1189    
1190      * Gigasampler format engine:
1191        - fixed a memory leak that could happen when a channel was deleted
1192          while notes were playing
1193        - made it possible to load an instrument even if the audio thread
1194          isn't running
1195        - added partial support for the "Controller Triggered" MIDI rule,
1196          enough for piano gigs with pedal noise samples
1197        - minor fix: only mark FX sends as being modified if really the
1198          respective FX send MIDI controller was used
1199        - added support for GM global device volume SysEx message
1200          (can be selected at compile time to either apply globally to the
1201          whole sampler [default] or only to the sampler channels that are
1202          connected to the respective MIDI input port the SysEx message arrived
1203          on)
1204        - bugfix: notes triggered at position 0 in the audio buffer were
1205          sometimes wrongly killed in the same buffer, causing no sound to
1206          be played
1207        - added support for chromatic / drumkit mode Roland GS Sysex message
1208          which is usally used to switch a part between chromatic sounds and
1209          drumkit sounds (as opposed to their common default setting of MIDI
1210          part 10 being a drumkit part and all other ones chromatic parts), in
1211          LS however one can switch between the first 16 MIDI instrument maps
1212          defined for the sampler
1213        - made it possible to create multiple sample channels even if the
1214          audio thread isn't running
1215        - fixed crash when removing channel with active voices (#116)
1216        - bugfix: on sample reference changes (instrument editor), only
1217          un-cache the respective sample if it's really not used by any
1218          sampler engine anymore
1219        - re-cache samples in case they were changed by an instrument editor,
1220          e.g. when a sample was added while playing (#82)
1221        - fixed hanging notes which occured when note-off event had the exact
1222          same time stamp as the voice's note-on event and occured both in the
1223          same audio fragment cycle (fixes bug #112)
1224        - added support for the "fine tune" and "pitch bend range"
1225          instrument-level gig parameters
1226        - fixed minor artifacts in pitch bend handling
1227        - added support for GS Reset SysEx message
1228        - allow gig files to use unlimited downward pitch shifting
1229        - added a limit check for upward pitch shifting
1230        - bugfix: sometimes, when playing a note twice fast, the second
1231          note was silent
1232        - fixed crash happening when a pitch bend event arrived at the
1233          same time a new instrument was loading
1234    
1235      * LSCP server:
1236        - added new LSCP event "CHANNEL_MIDI" which can be used by frontends to
1237          react on MIDI data arriving on certain sampler channels (so far only
1238          Note-On and Note-Off events are sent via this LSCP event)
1239        - added new LSCP event "DEVICE_MIDI" which can be used by frontends to
1240          react on MIDI data arriving on certain MIDI input devices (so far only
1241          Note-On and Note-Off events are sent via this LSCP event)
1242        - added new LSCP commands: FIND LOST DB_INSTRUMENT_FILES and
1243          SET DB_INSTRUMENT FILE_PATH
1244        - added new LSCP command: SEND CHANNEL MIDI_DATA which can be used by
1245          frontends to send MIDI messages to specific sampler channel
1246        - added two additional fields to GET FILE INSTRUMENT INFO command -
1247          KEY_BINDINGS and KEYSWITCH_BINDINGS
1248        - bugfix: the bank number provided by MIDI_INSTRUMENT_INFO notifications
1249          was incorrect
1250        - Optimized the retrieval of the MIDI instrument mappings
1251        - added new LSCP command "SET VOICES" to globally alter the maximum
1252          amount of voices, added new LSCP event "GLOBAL_INFO:VOICES" which will
1253          be triggered respectively
1254        - added new LSCP command "SET STREAMS" to globally alter the maximum
1255          amount of disk streams, added new LSCP event "GLOBAL_INFO:STREAMS"
1256          which will be triggered respectively
1257        - bugfix: retry if "select" returns EINTR (this fixes a crash when
1258          a gigedit file dialog is opened)
1259        - close all connections when LSCPServer is deleted
1260        - hard close of all sockets on exit
1261        - bugfix: SET CHANNEL MIDI_INPUT_TYPE didn't work with the MME
1262          driver
1263    
1264      * Bug fixes:
1265        - fixed a crash which occurs when removing a sampler channel waiting
1266          to start instrument loading after another channel
1267        - fixed a crash which occurs when removing a sampler channel with
1268          instrument loading in progress (bug #113)
1269        - fixed termination caused by uncaught exception when adding MIDI
1270          instrument with PERSISTENT load mode
1271        - fixed possible iterator invalidations when resetting the sampler
1272        - fixed memory leaks when issuing the following LSCP commands:
1273          GET AUDIO_OUTPUT_DRIVER INFO
1274          GET AUDIO_OUTPUT_DRIVER_PARAMETER INFO
1275          GET MIDI_INPUT_DRIVER INFO
1276          GET MIDI_INPUT_DRIVER_PARAMETER INFO
1277        - fixed possible compilation error when sqlite is not present
1278        - fixed orphaned pointers when setting maximum voices limit (bug #118)
1279        - fixed crash when changing the audio output device of a sampler
1280          channel with loaded instrument and start playing notes
1281        - fixed endless loop in Engine::SuspendAll() (bug #120)
1282        - fixed a low-level atomic load function that was broken on 64-bit
1283          PowerPC, which probably could cause crashes on that platform
1284        - fixed a memory management error which could cause a crash when a
1285          plugin was unloaded
1286        - bugfix: two private structs had the same name, which could cause
1287          problems if the linker chose the wrong constructor
1288        - fixed low-level ConditionServer usage bug that caused lockups on
1289          Windows
1290    
1291    
1292    Version 0.5.1 (6 December 2007)
1293    
1294      * packaging changes:
1295        - added autoconf checks for pthread library
1296        - added autoconf check for pthread bug found on certain NPTL-enabled
1297          glibc versions (see Gentoo bug report #194076)
1298        - added autoconf checks for MS Windows
1299    
1300      * general changes:
1301        - bugfix: the thread used by an editor plugin didn't die when the
1302          editor closed
1303        - bugfix: Ringbuffer.h: fill_write_space_with_null() did not zero
1304          out all the space. operator--() did not apply size_mask after
1305          decrementing the read_ptr. DEFAULT_WRAP_ELEMENTS set to 0 in
1306          order to avoid problems with the _NonVolatileReader functions.
1307        - bugfix: Stream.h: added a missing divide by BytesPerSample in
1308          GetWriteSpace(). Since this function is currently only used in
1309          the stream's qsort() compare function, it didn't trigger any
1310          bugs.
1311        - Resampler.h, Synthesizer.h: cubic interpolation now works in
1312          24bit mode too. Faster method to read 24bit words on little
1313          endian machines (x86): replaced 3 byte reads + shifts with a 1
1314          unaligned 32bit read and shift
1315        - experimental support for MS Windows (MIDI input via MME, AUDIO
1316          output via ASIO)
1317        - made handling of SIGINT signal (Ctrl-C) a bit more robust
1318        - support for monitoring the total number of active disk streams
1319          (new LSCP commands: GET TOTAL_STREAM_COUNT,
1320          SUBSCRIBE TOTAL_STREAM_COUNT, UNSUBSCRIBE TOTAL_STREAM_COUNT)
1321    
1322      * AUDIO driver:
1323        - added Windows ASIO low latency audio driver
1324    
1325      * MIDI driver:
1326        - added MME Windows MIDI driver
1327    
1328      * LSCP server:
1329        - added support for Windows style path / filenames, however with
1330          forward slash path separators instead of backslash
1331          (i.e. "C:/foo/bar.gig")
1332        - allow naughty liblscp to send non-string device parameters within
1333          apostrophes as well
1334        - added new LSCP commands: "GET FILE INSTRUMENTS <file>",
1335          "LIST FILE INSTRUMENTS <file>" and
1336          "GET FILE INSTRUMENT INFO <file> <index>" for retrieving informations
1337          about an arbitrary instrument file on the system where the sampler is
1338          running on
1339    
1340    Version 0.5.0 (15 October 2007)
1341    
1342      * packaging changes:
1343        - config.h is not going to be installed along with liblinuxsampler's
1344          API header files anymore
1345        - only the API relevant header (and source) files will be exported to
1346          the Doxygen API documentation (explicitly listed in Doxyfile.in)
1347        - added completely new XCode project files for Mac OSX which is now
1348          capable to execute our autoconf environment, thus no need anymore
1349          to maintain the compile time configuration file (osx/version.h) for
1350          OSX manually (patch by Toshi Nagata)
1351        - fixed buggy boolean --enable-foo / --disable-foo configure script
1352          parameters
1353        - global.h now only covers global definitions that are needed for the
1354          C++ API header files, all implementation internal global definitions
1355          are now in global_private.h
1356        - atomic.h is not exposed to the C++ API anymore
1357        - no need to include config.h anymore for using LS's API header files
1358        - fixed warnings in API doc generation
1359    
1360      * general changes:
1361        - replaced the old, confusing MIDI program change mechanism by a
1362          flexible MIDI instrument mapper which allows to map arbitrary
1363          (MIDI bank, MIDI program) pairs with arbitrary
1364          (engine type, instrument file, file index) triplets which will be
1365          loaded on the respective channel when such MIDI program change
1366          messages arrive, beside that, each entry allows to define a life-time
1367          strategy for the instrument, so the user can define whether the
1368          instrument should i.e. be permanently loaded (to be able to switch
1369          quickly among sounds) or i.e. loaded just on demand when the
1370          respective program change arrives (to safe RAM space), as well as a
1371          global volume factor for each entry, so the user can adjust the volume
1372          dynamic of his mapped instrument collection without having to modify
1373          the instrument files, also one can manage arbitrary amount of such
1374          MIDI instrument maps and assign each sampler channel individually
1375          a certain map, so that i.e. separation of normal instruments and
1376          drumkits is possible
1377        - new notification events for tracking changes to audio/MIDI devices,
1378          MIDI instrument maps, MIDI instruments, FX sends, global volume.
1379        - sampler was limited to load max. 200 instruments in the background
1380          due to a constant size RingBuffer FIFO which is now replaced by a
1381          dynamic (unlimited) size std::list FIFO
1382        - added FX sends, these allow to route audio signals to arbitrary audio
1383          output channels for being processed by external effect processors
1384          (i.e. jack-rack), the send levels are controllable via arbitrary MIDI
1385          controllers
1386        - global (sampler wide) volume can now be controlled at runtime
1387        - Implemented new, improved notification system
1388        - fixed compilation errors regarding OSX
1389          (patch by Toshi Nagata)
1390        - implemented instruments database
1391        - added support for escape sequences to the instruments database
1392        - added highly experimental support for on-the-fly instrument editing
1393          within the sampler's process (by using instrument editor plugins),
1394          you'll notice the new "Registered instrument editors:" message on
1395          startup, added a new LSCP command:
1396          "EDIT CHANNEL INSTRUMENT <sampler-channel>"
1397          to spawn a matching instrument editor for the instrument on the
1398          given sampler channel, the plugin path can be overridden at compile
1399          time with ./configure --enable-plugin-dir=/some/dir
1400        - added experimental code for synchronizing instrument editors hosted
1401          in the sampler's process to safely edit instruments while playing
1402          without a crash (hopefully) by either suspending single regions
1403          wherever possible or if unavoidable whole engine(s)
1404        - fixed several issues in fundamental "Thread" class: set scheduling
1405          policy and priority on thread level, set a minimum stack size for
1406          thread (TODO: a reasonable value yet to be tested), bugfix: non-RT
1407          threads simply inherited properties of starting thread instead of
1408          setting their own policy and priority
1409        - minor fix in our automatic stack trace mechanism on crashes, the
1410          main process did not wait for the stack trace process to finish
1411          its output
1412        - fixed some minor memory leaks
1413        - reenabled assembly features support, at the moment only for
1414          enabling a fast denormal FPU mode (x86 platforms supporting SSE2)
1415        - minor assembly fix in x86 features detection (don't use the PIC
1416          register, to avoid relocations in the text segment at runtime)
1417        - POSIX callback functions of Thread.h are hidden
1418    
1419      * MIDI driver:
1420        - dispatch bank select (MSB and LSB) messages
1421    
1422      * audio driver:
1423        - the ALSA audio output driver parameters now reflect the correct
1424          parameter value ranges for the respective selected sound card
1425          (patch by Till Wimmer, a bit fixed and extended)
1426    
1427      * Gigasampler format engine:
1428        - if a filter is used and EG2 finishes before EG1, let the voice
1429          die when EG2 has finished (this fixes a problem with clicks and
1430          voice starvation for some gigs)
1431        - playback is no longer disabled during instrument loading
1432        - all notes playing on a channel that changes its instrument keep
1433          playing with the old instrument until they get a note off
1434          command
1435        - EG fix: a release value of zero could cause noises or crash
1436        - handle MIDI coarse tuning messages (MIDI RPN #0 MSB #2 LSB)
1437        - EG fine tuning: when attack is zero the EG starts at a level
1438          above max sustain level, which means that there is a decay phase
1439          even if sustain is 100%
1440        - more EG fixes: the level could sometimes go below zero and cause
1441          noises or crashes
1442        - minor fix of EGDecay (patch by Toshi Nagata)
1443        - fixed compiler error when --enable-override-filter-type was
1444          supplied to the configure script (fixes #46)
1445        - disk thread: queue sizes are now proportional to CONFIG_MAX_STREAMS
1446          instead of a fix value
1447        - behavior fix: on MIDI CC# 65 (portamento on / off), 126 (mono mode),
1448          127 (solo mode) only kill voices if the respective mode really
1449          changed
1450    
1451      * LSCP server:
1452        - fixed compile time error for old Bison versions
1453          (i.e. v1.28 found on MacOS 10.4, patch by Toshi Nagata)
1454        - parser now supports extended ASCII character set
1455          (up to ASCII code 255, i.e. includes now umlauts and accents)
1456        - filename arguments in LSCP commands now allow to use escape
1457          sequences, that is directly literal as one of: \', \", \\, \n, \r,
1458          \f, \t, \v, or as octal ASCII code value like \132, or as hex ASCII
1459          code value like \xf2) (fixes bug #24)
1460        - the following LSCP commands now also support escape sequences for at
1461          least one of their text-based parameters (i.e. name, description):
1462          "ADD MIDI_INSTRUMENT_MAP", "MAP MIDI_INSTRUMENT",
1463          "SET MIDI_INSTRUMENT_MAP NAME", "SET FX_SEND NAME", "CREATE FX_SEND",
1464          "SET DB_INSTRUMENT_DIRECTORY NAME",
1465          "SET DB_INSTRUMENT_DIRECTORY DESCRIPTION", "SET DB_INSTRUMENT NAME",
1466          "SET DB_INSTRUMENT DESCRIPTION", "FIND DB_INSTRUMENTS",
1467          "FIND DB_INSTRUMENT_DIRECTORIES"
1468        - returns verbose syntax errors (line and column where syntax error
1469          occured, the unexpected character and the actually expected, possible
1470          character(s), the latter only if less than 5 possibilities)
1471        - made sure that LSCP syntax is not affected by gigedit locale
1472          settings
1473        - bugfix regarding strings parameter lists: all comma separated lists
1474          of strings were treated as being one string containing commas
1475          (fixes #57)
1476    
1477      * Bug fixes:
1478        - fixed crash occurring on certain LSCP scripts (Bug 39)
1479        - another thread safety fix for lscp "load engine" and "set
1480          channel audio output device"
1481        - fixed a crash which occurs when reassigning the same engine
1482          on a sampler channel with connected MIDI device
1483        - fixed a crash which occurs when changing the number of ports of a MIDI
1484          device connected to a sampler channel to number less then or equal
1485          to the index of the port to which the sampler channel is connected.
1486        - The previous bindings were not been disconnected when altering
1487          the ALSA_SEQ_BINDINGS parameter. Introduced a NONE keyword for
1488          unsubscribing from all bindings (e.g. ALSA_SEQ_BINDINGS=NONE).
1489        - The active stream/voice count statistic was incorrect.
1490        - notification events were not been sent for some sampler
1491          channel changes
1492        - added default min and max values to restrict the number of allowed
1493          audio output channels and MIDI input ports
1494        - the connection to the PCM interface is now closed when destroying
1495          an audio output device
1496        - files with slash in their path or filename could not be loaded
1497    
1498      * test cases:
1499        - updated and fixed (haven't been touched in a while)
1500    
1501    Version 0.4.0 (24 November 2006)
1502    
1503    * packaging changes:    * packaging changes:
1504      - changed deprecated copyright attribute to license; added ldconfig      - changed deprecated copyright attribute to license; added ldconfig

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