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revision 1233 by schoenebeck, Mon Jun 11 13:42:21 2007 UTC revision 2162 by persson, Tue Feb 8 18:22:50 2011 UTC
# Line 1  Line 1 
1  Version CVS HEAD (?)  Version CVS HEAD (?)
2    
3    * packaging changes:    * packaging changes:
4        - fixed building with newer MinGW-w64
5    
6      * general changes:
7        - Refactoring: moved the independent code from
8          the Gigasampler format engine to base classes
9        - command line option '--profile' is currently disabled, since the
10          respective profiling code is currently broken
11        - Introduced support for optional environment variable
12          "LINUXSAMPLER_PLUGIN_DIR" which allows to override the directory
13          where the sampler shall look for instrument editor plugins
14          (patch by Luis Garrido, slightly modified).
15        - implemented Roland GS NRPN 1ArrH which allows to set volume per note
16        - implemented Roland GS NRPN 1CrrH which allows to set pan per note
17        - implemented Roland GS NRPN 1DrrH which allows to set reverb send per
18          note (in this implementation of the sampler its simply hard routed to
19          the 1st effect send of the sampler channel, no matter what the actual
20          effect type is)
21        - implemented Roland GS NRPN 1ErrH which allows to set chorus send per
22          note (in this implementation of the sampler its simply hard routed to
23          the 2nd effect send of the sampler channel, no matter what the actual
24          effect type is)
25        - implemented support for internal LADSPA effects
26        - raised limit of program change queue from 100 to 512
27          (as suggested by Alex Stone)
28    
29      * Gigasampler format engine:
30        - implemented the "round robin keyboard" dimension
31        - fixed round robin and random dimensions for cases when number of
32          dimension zones is not a power of two
33        - made round robin use a counter for each region instead of each
34          key
35    
36      * SFZ format engine:
37        - Initial implementation (not usable yet)
38        - added support for v2 multiple stage envelope generators
39        - added a fine-tuned v1 envelope generator instead of using the
40          one from the gig engine
41        - fixed memory leak and memory handling errors
42        - added support for trigger=first, trigger=legato and sw_previous
43        - allow non-numerical key values ("C#4" for example)
44        - "key" opcode now sets pitch_keycenter too
45        - fixed error when unloading instrument with same sample used by
46          multiple regions
47        - added some opcode aliases, like loopmode for loop_mode, to be
48          more compatible
49        - added support for trigger=release and rt_decay
50        - added support for off_mode=normal
51        - added support for random, seq_position, seq_length and volume
52        - added v1 LFO opcodes to parser (no support in engine yet)
53        - added support for amp_veltrack and amp_velcurve_N
54        - fine-tuned the default velocity curve
55        - added support for transpose
56        - fixed crash when using sw_down/up
57        - improved logic for sw_lokey/hikey/up/down/last
58        - added more v1 aliases to parser
59        - reduced memory usage for sfz data
60        - RT-safeness: avoid malloc in audio thread
61        - fixed a bug that could cause voice stealing to fail
62        - optimized sample lookup
63        - improved support for exclusive groups (group, off_by and
64          off_mode)
65        - added support for controller triggered regions (on_locc/on_hicc)
66        - added support for loop_mode=one_shot
67        - fixed playback of 16 bit wav files on big endian CPUs
68        - added support for Ogg Vorbis sample files
69    
70      * SoundFont format engine:
71        - Initial implementation (not usable yet)
72        - RT-safeness: avoid malloc in audio thread
73        - fixed a bug that could cause voice stealing to fail
74    
75      * Host plugins:
76        - AU bugfix: failed to destroy its audio/MIDI devices
77        - Listen to all interfaces on Mac OS X (INADDR_ANY)
78        - VST bugfix: If the host called resume() before and after
79          changing sample rate or block size, the number of channels was
80          incorrectly set to two. This caused silence in Cubase 5.
81    
82      * MIDI driver:
83        - ALSA MIDI driver supports now "NAME" device parameter, for overriding
84          the ALSA sequencer client name
85        - removed limit of maximum amount of MIDI ports per MIDI device, since
86          there is no reason for this limit
87    
88      * LSCP server:
89        - added support for sending MIDI CC messages via LSCP command
90          "SEND CHANNEL MIDI_DATA CC <sampler-chan> <ctrl> <val>"
91        - added LSCP command "GET AVAILABLE_EFFECTS"
92        - added LSCP command "LIST AVAILABLE_EFFECTS"
93        - added LSCP command "GET EFFECT INFO <effect-index>"
94        - added LSCP command "CREATE EFFECT_INSTANCE <effect-index>"
95        - added LSCP command
96          "CREATE EFFECT_INSTANCE <effect-system> <module> <effect-name>"
97        - added LSCP command "DESTROY EFFECT_INSTANCE <effect-instance>"
98        - added LSCP command "GET EFFECT_INSTANCES"
99        - added LSCP command "LIST EFFECT_INSTANCES"
100        - added LSCP command "GET EFFECT_INSTANCE INFO <effect-instance>"
101        - added LSCP command
102          "GET EFFECT_INSTANCE_INPUT_CONTROL INFO <effect-instance> <input-control>"
103        - added LSCP command "SET EFFECT_INSTANCE_INPUT_CONTROL VALUE
104          <effect-instance> <input-control> <value>"
105        - added LSCP command "GET SEND_EFFECT_CHAINS <audio-device>"
106        - added LSCP command "LIST SEND_EFFECT_CHAINS <audio-device>"
107        - added LSCP command "ADD SEND_EFFECT_CHAIN <audio-device>"
108        - added LSCP command
109          "REMOVE SEND_EFFECT_CHAIN <audio-device> <effect-chain>"
110        - added LSCP command
111          "GET SEND_EFFECT_CHAIN INFO <audio-device> <effect-chain>"
112        - added LSCP command "APPEND SEND_EFFECT_CHAIN EFFECT <audio-device>
113          <effect-chain> <effect-instance>"
114        - added LSCP command "INSERT SEND_EFFECT_CHAIN EFFECT <audio-device>
115          <effect-chain> <effect-chain-pos> <effect-instance>"
116        - added LSCP command "REMOVE SEND_EFFECT_CHAIN EFFECT <audio-device>
117          <effect-chain> <chain-pos>"
118        - added LSCP command "SET FX_SEND EFFECT <sampler_channel>
119          <fx_send_id> <effect_chain> <chain_pos>"
120        - added LSCP command "REMOVE FX_SEND EFFECT <sampler_channel> <fx_send_id>"
121    
122      * Bug fixes:
123        - Fixed crash which may occur when MIDI key + transpose is out of range
124        - minor valgrind fixes
125        - fixed crash which occured when changing an already deployed sampler
126          channel to a different engine type
127        - fixed crash when deleting a sampler channel or changing engine
128          type while an instrument load was in progress
129        - bugfix: playing a note while changing the instrument could cause
130          a crash, or give "Handing back unknown region" error messages
131    
132    Version 1.0.0 (31 July 2009)
133    
134      * packaging changes:
135        - autoconf bugfix: the PKG_CONFIG variable wasn't initialized properly,
136          causing e.g. the libgig test to fail when
137          "./configure --disable-jack-driver" was used
138          (patch by Alexis Ballier)
139        - fixed compilation with gcc 4.3
140        - fixes for building on OS X (thanks to Ebrahim Mayat for testing)
141        - fixed configure so it detects x86_64 (#107)
142        - fixes for building with newer MinGW versions
143        - fix for building with bison 2.4 (#111)
144        - fixed building with libgig installed in a non-standard directory
145        - minor fix in configure for mmsystem.h detection on MinGW
146        - Windows: look for editor plugins and Fantasia using base
147          directory of liblinuxsampler dll (look in the same directory and one
148          directory above)
149        - configure script fix: removed unconditional use of SSE
150        - fixed building with sqlite installed in a non-standard directory
151        - when cross-compiling, don't try to create instruments.db
152        - fix for new mingw-w64 version, which has usleep
153    
154      * general changes:
155        - bugfix: on some POSIX systems instrument editor plugins refused to
156          load as we used a non-portable Linux specific struct field
157          (fixes bug #70, patch by Ronald Baljeu)
158        - fixed endless loop which occured when loading an instrument editor
159          plugin DLL on Windows systems failed
160        - fixed memory leaks that occurred when liblinuxsampler was unloaded
161        - optimized the SynchronizedConfig class so it doesn't wait
162          unnecessarily long after an update
163        - added support for notifying instrument editors on note-on / note-off
164          events (e.g. to highlight the pressed keys on the virtual keyboard
165          of gigedit)
166        - added support for triggering notes by instrument editors (see above)
167        - be verbose on DLL load errors (on Linux)
168        - fixed di-harmonic triangle LFO implementation (this LFO implementation
169          is only used by very few systems, most pick the int math
170          implementation, which is usually faster)
171        - fixes for audio drivers with varying buffer sizes
172        - experimental support for running LinuxSampler as a DSSI, LV2 and
173          VST plugin
174        - notification events for stream/voice count statistics are now sent
175          only when there are actual changes
176        - added memory ordering constraints to improve stability on
177          multi-core and multi-cpu systems
178        - maximum voices and disk streams can now be altered at runtime
179        - fixed CPU feature detection on x86_64 (maybe fixes #108)
180        - automatic stacktrace mechanism is now turned off by default and can
181          be switched on by command line option "--stacktrace" (the automatic
182          stacktrace mechanism seems to be broken on most systems at the moment)
183        - C++ API method InstrumentManager::LaunchInstrumentEditor() now returns
184          a pointer to the launched InstrumentEditor object
185        - added optional 3rd party user data parameter for following
186          liblinuxsampler C++ API methods: InstrumentEditor::Main(),
187          InstrumentEditor::Launch(),
188          InstrumentManager::LaunchInstrumentEditor()
189        - theoretical fix: made SynchronizedConfig follow C++0x memory
190          model more strictly
191        - fixes for using large audio device buffers
192        - Windows: add the installation directory to the DLL search path
193          when loading an editor plugin (solves problems with VST and
194          gigedit on systems with other GTK versions installed)
195    
196      * audio driver:
197        - removed the nonsense audio channel constraint (which was hard coded to
198          max. 100 audio channels) for most audio drivers
199        - JACK audio driver did not offer a device parameter "SAMPLERATE" as
200          opposed to the LSCP specs
201        - bugfix: the SAMPLERATE parameter of some drivers (e.g. JACK)
202          reflected the wrong value
203        - fixed a memory management bug in ASIO driver
204        - Makefile fix: JACK_CFLAGS wasn't used
205        - JACK: use jack_client_open instead of the deprecated
206          jack_client_new
207        - added (experimental) CoreAudio driver
208        - applied old fixes to the ASIO driver that were included in the
209          previous binary release but accidentally never committed to CVS
210          (fixes #117)
211        - fixes for ASIO on mingw-w64 (iasio wrapper is not needed on
212          win64)
213        - VST: added support for sample rate and buffer size changes
214        - VST: close editor (Fantasia) when the VST is removed
215        - VST: avoid opening Fantasia more than once for each VST instance
216        - VST: export main function as "main" on Linux too (fix for
217          energyXT)
218        - VST: changed number of output channels from one stereo to 16
219          stereo
220        - added channel routing, fxsends and midi maps to the settings
221          stored in the plugin state
222        - performance optimization of AudioChannel::MixTo() and
223          AudioChannel::CopyTo() methods using GCC vector exensions
224          (if available)
225        - ASIO fixes: avoid initializing the device twice, avoid throwing
226          exception when getting parameters from a disconnected device
227    
228      * MIDI driver:
229        - added JACK MIDI driver
230        - dispatch bank select as ordinary CC as well, the user might seriously
231          want to (mis)use it for some purpose ("fixed" in all current MIDI
232          input drivers: ALSA, CoreMIDI, JACK, MidiShare, MME)
233        - bugfix: pitch bend wasn't working with JackMidi, VST, LV2, MME,
234          CoreMidi or AU
235        - fixed mingw-w64 compilation error in MME driver
236        - made program change handling in MIDI thread real-time safe by
237          moving the logic to a non-RT thread
238        - fixed minor memory leak in ALSA driver
239    
240      * instruments database:
241        - avoid time consuming samples scanning when adding instruments
242          to the instruments database
243        - added support for handling lost files in the instruments database
244        - Implemented option for adding instruments in separate directories
245          in the instruments database
246          (patch by Chris Cherrett & Andrew Williams, a bit adjusted)
247        - work-around for missing fnmatch function on Windows to make
248          instrument database compilable
249        - added instrument database support on Windows
250          works with both standalone mode and VST plugin.
251          the instruments DB file is located in
252          %USERPROFILE%\.linuxsampler\instruments.db which allows different
253          databases for each windows user
254          if no DB is present it automatically creates the .linuxsampler subdir
255          and then creates an empty DB
256        - fixed recursive import, which was broken on Windows
257    
258      * Gigasampler format engine:
259        - fixed a memory leak that could happen when a channel was deleted
260          while notes were playing
261        - made it possible to load an instrument even if the audio thread
262          isn't running
263        - added partial support for the "Controller Triggered" MIDI rule,
264          enough for piano gigs with pedal noise samples
265        - minor fix: only mark FX sends as being modified if really the
266          respective FX send MIDI controller was used
267        - added support for GM global device volume SysEx message
268          (can be selected at compile time to either apply globally to the
269          whole sampler [default] or only to the sampler channels that are
270          connected to the respective MIDI input port the SysEx message arrived
271          on)
272        - bugfix: notes triggered at position 0 in the audio buffer were
273          sometimes wrongly killed in the same buffer, causing no sound to
274          be played
275        - added support for chromatic / drumkit mode Roland GS Sysex message
276          which is usally used to switch a part between chromatic sounds and
277          drumkit sounds (as opposed to their common default setting of MIDI
278          part 10 being a drumkit part and all other ones chromatic parts), in
279          LS however one can switch between the first 16 MIDI instrument maps
280          defined for the sampler
281        - made it possible to create multiple sample channels even if the
282          audio thread isn't running
283        - fixed crash when removing channel with active voices (#116)
284        - bugfix: on sample reference changes (instrument editor), only
285          un-cache the respective sample if it's really not used by any
286          sampler engine anymore
287        - re-cache samples in case they were changed by an instrument editor,
288          e.g. when a sample was added while playing (#82)
289        - fixed hanging notes which occured when note-off event had the exact
290          same time stamp as the voice's note-on event and occured both in the
291          same audio fragment cycle (fixes bug #112)
292        - added support for the "fine tune" and "pitch bend range"
293          instrument-level gig parameters
294        - fixed minor artifacts in pitch bend handling
295        - added support for GS Reset SysEx message
296        - allow gig files to use unlimited downward pitch shifting
297        - added a limit check for upward pitch shifting
298        - bugfix: sometimes, when playing a note twice fast, the second
299          note was silent
300        - fixed crash happening when a pitch bend event arrived at the
301          same time a new instrument was loading
302    
303      * LSCP server:
304        - added new LSCP event "CHANNEL_MIDI" which can be used by frontends to
305          react on MIDI data arriving on certain sampler channels (so far only
306          Note-On and Note-Off events are sent via this LSCP event)
307        - added new LSCP event "DEVICE_MIDI" which can be used by frontends to
308          react on MIDI data arriving on certain MIDI input devices (so far only
309          Note-On and Note-Off events are sent via this LSCP event)
310        - added new LSCP commands: FIND LOST DB_INSTRUMENT_FILES and
311          SET DB_INSTRUMENT FILE_PATH
312        - added new LSCP command: SEND CHANNEL MIDI_DATA which can be used by
313          frontends to send MIDI messages to specific sampler channel
314        - added two additional fields to GET FILE INSTRUMENT INFO command -
315          KEY_BINDINGS and KEYSWITCH_BINDINGS
316        - bugfix: the bank number provided by MIDI_INSTRUMENT_INFO notifications
317          was incorrect
318        - Optimized the retrieval of the MIDI instrument mappings
319        - added new LSCP command "SET VOICES" to globally alter the maximum
320          amount of voices, added new LSCP event "GLOBAL_INFO:VOICES" which will
321          be triggered respectively
322        - added new LSCP command "SET STREAMS" to globally alter the maximum
323          amount of disk streams, added new LSCP event "GLOBAL_INFO:STREAMS"
324          which will be triggered respectively
325        - bugfix: retry if "select" returns EINTR (this fixes a crash when
326          a gigedit file dialog is opened)
327        - close all connections when LSCPServer is deleted
328        - hard close of all sockets on exit
329        - bugfix: SET CHANNEL MIDI_INPUT_TYPE didn't work with the MME
330          driver
331    
332      * Bug fixes:
333        - fixed a crash which occurs when removing a sampler channel waiting
334          to start instrument loading after another channel
335        - fixed a crash which occurs when removing a sampler channel with
336          instrument loading in progress (bug #113)
337        - fixed termination caused by uncaught exception when adding MIDI
338          instrument with PERSISTENT load mode
339        - fixed possible iterator invalidations when resetting the sampler
340        - fixed memory leaks when issuing the following LSCP commands:
341          GET AUDIO_OUTPUT_DRIVER INFO
342          GET AUDIO_OUTPUT_DRIVER_PARAMETER INFO
343          GET MIDI_INPUT_DRIVER INFO
344          GET MIDI_INPUT_DRIVER_PARAMETER INFO
345        - fixed possible compilation error when sqlite is not present
346        - fixed orphaned pointers when setting maximum voices limit (bug #118)
347        - fixed crash when changing the audio output device of a sampler
348          channel with loaded instrument and start playing notes
349        - fixed endless loop in Engine::SuspendAll() (bug #120)
350        - fixed a low-level atomic load function that was broken on 64-bit
351          PowerPC, which probably could cause crashes on that platform
352        - fixed a memory management error which could cause a crash when a
353          plugin was unloaded
354        - bugfix: two private structs had the same name, which could cause
355          problems if the linker chose the wrong constructor
356        - fixed low-level ConditionServer usage bug that caused lockups on
357          Windows
358    
359    
360    Version 0.5.1 (6 December 2007)
361    
362      * packaging changes:
363        - added autoconf checks for pthread library
364        - added autoconf check for pthread bug found on certain NPTL-enabled
365          glibc versions (see Gentoo bug report #194076)
366        - added autoconf checks for MS Windows
367    
368      * general changes:
369        - bugfix: the thread used by an editor plugin didn't die when the
370          editor closed
371        - bugfix: Ringbuffer.h: fill_write_space_with_null() did not zero
372          out all the space. operator--() did not apply size_mask after
373          decrementing the read_ptr. DEFAULT_WRAP_ELEMENTS set to 0 in
374          order to avoid problems with the _NonVolatileReader functions.
375        - bugfix: Stream.h: added a missing divide by BytesPerSample in
376          GetWriteSpace(). Since this function is currently only used in
377          the stream's qsort() compare function, it didn't trigger any
378          bugs.
379        - Resampler.h, Synthesizer.h: cubic interpolation now works in
380          24bit mode too. Faster method to read 24bit words on little
381          endian machines (x86): replaced 3 byte reads + shifts with a 1
382          unaligned 32bit read and shift
383        - experimental support for MS Windows (MIDI input via MME, AUDIO
384          output via ASIO)
385        - made handling of SIGINT signal (Ctrl-C) a bit more robust
386        - support for monitoring the total number of active disk streams
387          (new LSCP commands: GET TOTAL_STREAM_COUNT,
388          SUBSCRIBE TOTAL_STREAM_COUNT, UNSUBSCRIBE TOTAL_STREAM_COUNT)
389    
390      * AUDIO driver:
391        - added Windows ASIO low latency audio driver
392    
393      * MIDI driver:
394        - added MME Windows MIDI driver
395    
396      * LSCP server:
397        - added support for Windows style path / filenames, however with
398          forward slash path separators instead of backslash
399          (i.e. "C:/foo/bar.gig")
400        - allow naughty liblscp to send non-string device parameters within
401          apostrophes as well
402        - added new LSCP commands: "GET FILE INSTRUMENTS <file>",
403          "LIST FILE INSTRUMENTS <file>" and
404          "GET FILE INSTRUMENT INFO <file> <index>" for retrieving informations
405          about an arbitrary instrument file on the system where the sampler is
406          running on
407    
408    Version 0.5.0 (15 October 2007)
409    
410      * packaging changes:
411      - config.h is not going to be installed along with liblinuxsampler's      - config.h is not going to be installed along with liblinuxsampler's
412        API header files anymore        API header files anymore
413      - only the API relevant header (and source) files will be exported to      - only the API relevant header (and source) files will be exported to
# Line 9  Version CVS HEAD (?) Line 416  Version CVS HEAD (?)
416        capable to execute our autoconf environment, thus no need anymore        capable to execute our autoconf environment, thus no need anymore
417        to maintain the compile time configuration file (osx/version.h) for        to maintain the compile time configuration file (osx/version.h) for
418        OSX manually (patch by Toshi Nagata)        OSX manually (patch by Toshi Nagata)
419        - fixed buggy boolean --enable-foo / --disable-foo configure script
420          parameters
421        - global.h now only covers global definitions that are needed for the
422          C++ API header files, all implementation internal global definitions
423          are now in global_private.h
424        - atomic.h is not exposed to the C++ API anymore
425        - no need to include config.h anymore for using LS's API header files
426        - fixed warnings in API doc generation
427    
428    * general changes:    * general changes:
429      - replaced the old, confusing MIDI program change mechanism by a      - replaced the old, confusing MIDI program change mechanism by a
# Line 41  Version CVS HEAD (?) Line 456  Version CVS HEAD (?)
456      - fixed compilation errors regarding OSX      - fixed compilation errors regarding OSX
457        (patch by Toshi Nagata)        (patch by Toshi Nagata)
458      - implemented instruments database      - implemented instruments database
459        - added support for escape sequences to the instruments database
460      - added highly experimental support for on-the-fly instrument editing      - added highly experimental support for on-the-fly instrument editing
461        within the sampler's process (by using instrument editor plugins),        within the sampler's process (by using instrument editor plugins),
462        you'll notice the new "Registered instrument editors:" message on        you'll notice the new "Registered instrument editors:" message on
463        startup, added a new LSCP command "EDIT INSTRUMENT <sampler-channel>"        startup, added a new LSCP command:
464          "EDIT CHANNEL INSTRUMENT <sampler-channel>"
465        to spawn a matching instrument editor for the instrument on the        to spawn a matching instrument editor for the instrument on the
466        given sampler channel, the plugin path can be overridden at compile        given sampler channel, the plugin path can be overridden at compile
467        time with ./configure --enable-plugin-dir=/some/dir        time with ./configure --enable-plugin-dir=/some/dir
468        - added experimental code for synchronizing instrument editors hosted
469          in the sampler's process to safely edit instruments while playing
470          without a crash (hopefully) by either suspending single regions
471          wherever possible or if unavoidable whole engine(s)
472      - fixed several issues in fundamental "Thread" class: set scheduling      - fixed several issues in fundamental "Thread" class: set scheduling
473        policy and priority on thread level, set a minimum stack size for        policy and priority on thread level, set a minimum stack size for
474        thread (TODO: a reasonable value yet to be tested), bugfix: non-RT        thread (TODO: a reasonable value yet to be tested), bugfix: non-RT
# Line 56  Version CVS HEAD (?) Line 477  Version CVS HEAD (?)
477      - minor fix in our automatic stack trace mechanism on crashes, the      - minor fix in our automatic stack trace mechanism on crashes, the
478        main process did not wait for the stack trace process to finish        main process did not wait for the stack trace process to finish
479        its output        its output
480        - fixed some minor memory leaks
481        - reenabled assembly features support, at the moment only for
482          enabling a fast denormal FPU mode (x86 platforms supporting SSE2)
483        - minor assembly fix in x86 features detection (don't use the PIC
484          register, to avoid relocations in the text segment at runtime)
485        - POSIX callback functions of Thread.h are hidden
486    
487    * MIDI driver:    * MIDI driver:
488      - dispatch bank select (MSB and LSB) messages      - dispatch bank select (MSB and LSB) messages
# Line 83  Version CVS HEAD (?) Line 510  Version CVS HEAD (?)
510      - minor fix of EGDecay (patch by Toshi Nagata)      - minor fix of EGDecay (patch by Toshi Nagata)
511      - fixed compiler error when --enable-override-filter-type was      - fixed compiler error when --enable-override-filter-type was
512        supplied to the configure script (fixes #46)        supplied to the configure script (fixes #46)
513        - disk thread: queue sizes are now proportional to CONFIG_MAX_STREAMS
514          instead of a fix value
515        - behavior fix: on MIDI CC# 65 (portamento on / off), 126 (mono mode),
516          127 (solo mode) only kill voices if the respective mode really
517          changed
518    
519      * LSCP server:
520        - fixed compile time error for old Bison versions
521          (i.e. v1.28 found on MacOS 10.4, patch by Toshi Nagata)
522        - parser now supports extended ASCII character set
523          (up to ASCII code 255, i.e. includes now umlauts and accents)
524        - filename arguments in LSCP commands now allow to use escape
525          sequences, that is directly literal as one of: \', \", \\, \n, \r,
526          \f, \t, \v, or as octal ASCII code value like \132, or as hex ASCII
527          code value like \xf2) (fixes bug #24)
528        - the following LSCP commands now also support escape sequences for at
529          least one of their text-based parameters (i.e. name, description):
530          "ADD MIDI_INSTRUMENT_MAP", "MAP MIDI_INSTRUMENT",
531          "SET MIDI_INSTRUMENT_MAP NAME", "SET FX_SEND NAME", "CREATE FX_SEND",
532          "SET DB_INSTRUMENT_DIRECTORY NAME",
533          "SET DB_INSTRUMENT_DIRECTORY DESCRIPTION", "SET DB_INSTRUMENT NAME",
534          "SET DB_INSTRUMENT DESCRIPTION", "FIND DB_INSTRUMENTS",
535          "FIND DB_INSTRUMENT_DIRECTORIES"
536        - returns verbose syntax errors (line and column where syntax error
537          occured, the unexpected character and the actually expected, possible
538          character(s), the latter only if less than 5 possibilities)
539        - made sure that LSCP syntax is not affected by gigedit locale
540          settings
541        - bugfix regarding strings parameter lists: all comma separated lists
542          of strings were treated as being one string containing commas
543          (fixes #57)
544    
545    * Bug fixes:    * Bug fixes:
546      - fixed crash occurring on certain LSCP scripts (Bug 39)      - fixed crash occurring on certain LSCP scripts (Bug 39)
547      - another thread safety fix for lscp "load engine" and "set      - another thread safety fix for lscp "load engine" and "set
548        channel audio output device"        channel audio output device"
549        - fixed a crash which occurs when reassigning the same engine
550          on a sampler channel with connected MIDI device
551        - fixed a crash which occurs when changing the number of ports of a MIDI
552          device connected to a sampler channel to number less then or equal
553          to the index of the port to which the sampler channel is connected.
554        - The previous bindings were not been disconnected when altering
555          the ALSA_SEQ_BINDINGS parameter. Introduced a NONE keyword for
556          unsubscribing from all bindings (e.g. ALSA_SEQ_BINDINGS=NONE).
557        - The active stream/voice count statistic was incorrect.
558        - notification events were not been sent for some sampler
559          channel changes
560        - added default min and max values to restrict the number of allowed
561          audio output channels and MIDI input ports
562        - the connection to the PCM interface is now closed when destroying
563          an audio output device
564        - files with slash in their path or filename could not be loaded
565    
566    * test cases:    * test cases:
567      - updated and fixed (haven't been touched in a while)      - updated and fixed (haven't been touched in a while)

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