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revision 620 by schoenebeck, Wed Jun 8 23:16:13 2005 UTC revision 2938 by schoenebeck, Mon Jul 11 17:10:40 2016 UTC
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1  Version CVS HEAD (?)  Version SVN trunk (?)
3      * SFZ format engine:
4        - added support for <global>, <master> and #define (patch by Alby M)
6      * general changes:
7        - fixed printf type errors (mostly in debug messages)
8        - use unique_ptr instead of auto_ptr when building with C++11
9        - Added RTAVLTree class which is a real-time safe ordered multi-map, thus
10          allowing to sort data efficiently in real-time safe manner.
11        - RTList class: added methods for moving/inserting elements to arbitrary
12          position within a list.
13        - RTList class: added method fromPtr() for creating an Iterator object from
14          a raw element pointer.
15        - Attempt to partly fix resetting engine channels vs. resetting engine, an
16          overall cleanup of the Reset*(), ConnectAudioDevice(),
17          DisconnectAudioDevice() API methods would still be desirable though,
18          because the current situation is still inconsistent and error prone.
19        - Active voices are now internally grouped to "Note" objects, instead of
20          being directly assigned to a keyboard key. This allows more fine graded
21          processing of voices, which is i.e. required for certain instrument
22          script features.
23        - Fix: Release trigger voices were not spawned on sustain pedal up
24          (CC #64) events.
25        - Fix: Release trigger voices can now also distinguish correctly between
26          note-off and sustain pedal up events.
28      * packaging changes:
29        - removed unnecessary dependency to libuuid
30          (originated by libgig's usage of it)
31        - Automake: set environment variable GCC_COLORS=auto to allow GCC to
32          auto detect whether it (sh/c)ould output its messages in color.
34      * Real-time instrument scripts:
35        - Implemented scheduler for delayed MIDI events and for suspended scripts.
36        - Built-in script function "wait()": implemented support for function's
37          "duration-us" argument, thus scripts using this function are now
38          correctly resumed after the requested amount of microseconds.
39        - Built-in script function "play_note()": implemented support for
40          function's "duration-us" argument, thus notes triggered with this
41          argument are now correctly released after the requested amount of
42          microseconds.
43        - Fix: script events were not cleared when engine channel was reset,
44          potentially causing undefined behavior.
45        - Fixed crash which happened when trying to reference an undeclared
46          variable.
47        - Built-in script function "play_note()": Added support for passing
48          special value -1 for "duration-us" argument, which will cause the
49          triggered note to be released once the original note was released.
50        - Instrument script classes now exported with the liblinuxsampler C++ API.
51        - Added new API method ScriptVM::syntaxHighlighting() which provides
52          a convenient syntax highlighting backend for external instrument
53          script editor applications.
54        - Added new C++ API class "ScriptVMFactory".
55        - Extended parser issues to provide not only first line and first
56          column, but also last line and last column of issue (thus marking
57          the precise span of the issue within the source code).
58        - Reload script automatically after being modified by an instrument
59          editor.
60        - NKSP language grammar correction: allow empty event handler bodies
61          like "on note end on".
62        - Implemented built-in script function "change_vol()".
63        - Implemented built-in script function "change_tune()".
64        - Implemented built-in script function "change_pan()".
65        - Implemented built-in script function "change_cutoff()".
66        - Implemented built-in script function "change_reso()".
67        - Implemented built-in script function "event_status()".
68        - Added built-in script constants "$EVENT_STATUS_INACTIVE" and
69          "$EVENT_STATUS_NOTE_QUEUE" both for being used as flags for
70          "event_status()" function.
71        - NKSP language: Added support for bitwise operators ".or.", ".and."
72          and ".not.".
73        - NKSP language scanner: Fixed IDs matching to require at least one
74          character (i.e. when matching function names or variable names).
75        - NKSP language scanner: disabled unusued rules.
76        - Fixed behavior of play_note() and note_off() functions which must
77          be distinguished engine internally from "real" MIDI note on/off
78          events in order to avoid misbehaviors like hanging notes.
80    Version 2.0.0 (15 July 2015)
82      * packaging changes:
83        - fixed building with newer MinGW-w64
84        - Mac OS X: support the new dir for Core Audio SDK
85        - Mac OS X: fixed building outside source directory
86        - made sure all source files for hostplugins are included when
87          doing "make dist"
88        - removed empty directories left from the cvs to svn migration
89        - fixed compilation with gcc 4.6.1
90        - another "make dist" fix, for the LV2 plugin
91        - made --enable-pthread-testcancel default on Mac OS X
92        - minor Makefile fix for building lscpparser when build and source
93          directories are separate
94        - Mac OS X: made it possible to specify plugin installation dir to
95          configure
96        - Mac OS X: Makefile fix for the install-strip target
97        - fixed compilation with gcc 4.7
98        - fixed configure script error with old autoconf versions
99        - lsatomic.h: use gcc provided atomic functions if building with
100          gcc 4.7 and C++11
101        - modernized configure script
102        - fixed linkage error when building with
103          LDFLAGS="-Wl,--no-undefined" (#190)
104        - fixed compilation with Clang 3.2
105        - removed usage of deprecated Automake variable INCLUDES
106        - fixed building with C++11
107        - build fix: ChangeFlagRelaxed.h was missing in makefile
108        - build fix: libsndfile compiler flags were missing in some
109          makefiles
110        - fix for building with bison 3.0 (#202)
111        - Mac OS X: added temporary hack allowing to spawn gigedit as callback
112          on the process's main thread
113        - fixed build error on newer MinGW
114        - support building with older jack versions
115        - support building with spaces in vst sdk path
116        - enabled automake 'subdir-objects' option and moved external
117          source references (vst, au, asio) from makefiles to cpp files,
118          in order to get rid of warnings from automake 1.14
120      * general changes:
121        - Refactoring: moved the independent code from
122          the Gigasampler format engine to base classes
123        - command line option '--profile' is currently disabled, since the
124          respective profiling code is currently broken
125        - Introduced support for optional environment variable
126          "LINUXSAMPLER_PLUGIN_DIR" which allows to override the directory
127          where the sampler shall look for instrument editor plugins
128          (patch by Luis Garrido, slightly modified).
129        - implemented Roland GS NRPN 1ArrH which allows to set volume per note
130        - implemented Roland GS NRPN 1CrrH which allows to set pan per note
131        - implemented Roland GS NRPN 1DrrH which allows to set reverb send per
132          note (in this implementation of the sampler its simply hard routed to
133          the 1st effect send of the sampler channel, no matter what the actual
134          effect type is)
135        - implemented Roland GS NRPN 1ErrH which allows to set chorus send per
136          note (in this implementation of the sampler its simply hard routed to
137          the 2nd effect send of the sampler channel, no matter what the actual
138          effect type is)
139        - implemented support for internal LADSPA effects
140        - raised limit of program change queue from 100 to 512
141          (as suggested by Alex Stone)
142        - implemented sine LFO, pulse LFO and saw LFO
143        - experimental support for per voice equalization
144        - added command line option --exec-after-init
145        - Introduced new C++ API method:
146          EngineChannel::InstrumentFileName(int index)
147          allowing to retrieve the whole list of files used for the loaded
148          instrument on an engine channel (a.k.a. part). Some GigaStudio
149          instruments for example are splitted over several files like
150          "Foo.gig", "Foo.gx01", "Foo.gx02", ...
151        - Added new C++ API method Sampler::GetGlobalMaxVoices().
152        - Added new C++ API method Sampler::GetGlobalMaxStreams().
153        - Added new C++ API method Sampler::SetGlobalMaxVoices().
154        - Added new C++ API method Sampler::SetGlobalMaxStreams().
155        - Various "const" and "restrict" optimizations.
156        - all engines: add pan CC value to instrument pan parameter before
157          applying panning, instead of using two separate pan functions in
158          series (#182)
159        - added a lock guard class for exception safe mutex handling and
160          used it everywhere appropriate
161        - Immediately apply scale tuning changes to active voices.
162        - Exposed scale tuning to C++ API (along to the already existing standard
163          SysEx way).
164        - lsatomic.h fixes: seq_cst load and store were suboptimal for x86
165          and broken for ppc64. (Seq_cst loads and stores are actually not
166          used in LS, so the bug wasn't noticable.)
167        - lsatomic.h: added ARMv7 support
168        - Added support for multiple MIDI input ports per sampler channel (and
169          added various new C++ methods for this new feature / design change, old
170          C++ API methods for managing SamplerChannel's MIDI inputs are now marked
171          as deprecated but are still there and should provide full behavior
172          backward compatibility).
173        - AbstractEngine::GSChecksum(): don't allocate memory on the stack (was
174          unsafe and caused compilation error with clang 2.x).
175        - Bugfix: only process the latest MIDI program change event.
176        - Introducing the LSCP shell, which provides convenient control of the
177          sampler from the command line by providing LSCP aware features.
178        - VirtualMidiDevice: Added support for program change.
179        - VirtualMidiDevice: Added support for bank select (MSB & LSB).
180        - VirtualMidiDevice: Added support for pitch bend.
181        - Aftertouch: extended API to explicitly handle channel pressure and
182          polyphonic key pressure events (so far polyphonic pressure was not
183          supported at all, and channel pressure was rerouted as CC128 but not
184          used so far).
185        - Added initial support for real-time instrument scripts. The script VM
186          code is shared by all sampler engine implemementations, however only the
187          gig file format currently provides support for storing instrument scripts
188          (as LinuxSampler extension to the original GigaStudio 4 format).
190      * Gigasampler format engine:
191        - implemented the "round robin keyboard" dimension
192        - fixed round robin and random dimensions for cases when number of
193          dimension zones is not a power of two
194        - made round robin use a counter for each region instead of each
195          key
196        - bugfix: pitch LFO controller "internal+aftertouch" was broken
197        - bugfix: filter keyboard tracking was broken
198        - filter performance fix (an unnecessary copy was made of the
199          filter parameters in each sub fragment)
200        - handle special case when pan parameter in gig file has max or
201          min value
202        - Exclusive Groups: don't ever stop voices of the same note,
203          doesn't sound naturally with a drumkit
204        - fixed EG1 modulation when attack or release is zero
205        - Fixed support for 'aftertouch' attenuation controller.
206        - Fixed crash that happened with velocity split sounds under certain
207          conditions (see also previous commit on libgig).
208        - fixed behaviour of filter LFO
210      * SFZ format engine:
211        - Initial implementation (not usable yet)
212        - added support for v2 multiple stage envelope generators
213        - added a fine-tuned v1 envelope generator instead of using the
214          one from the gig engine
215        - fixed memory leak and memory handling errors
216        - added support for trigger=first, trigger=legato and sw_previous
217        - allow non-numerical key values ("C#4" for example)
218        - "key" opcode now sets pitch_keycenter too
219        - fixed error when unloading instrument with same sample used by
220          multiple regions
221        - added some opcode aliases, like loopmode for loop_mode, to be
222          more compatible
223        - added support for trigger=release and rt_decay
224        - added support for off_mode=normal
225        - added support for random, seq_position, seq_length and volume
226        - added v1 LFO opcodes to parser (no support in engine yet)
227        - added support for amp_veltrack and amp_velcurve_N
228        - fine-tuned the default velocity curve
229        - added support for transpose
230        - fixed crash when using sw_down/up
231        - improved logic for sw_lokey/hikey/up/down/last
232        - added more v1 aliases to parser
233        - reduced memory usage for sfz data
234        - RT-safeness: avoid malloc in audio thread
235        - fixed a bug that could cause voice stealing to fail
236        - optimized sample lookup
237        - improved support for exclusive groups (group, off_by and
238          off_mode)
239        - added support for controller triggered regions (on_locc/on_hicc)
240        - added support for loop_mode=one_shot
241        - fixed playback of 16 bit wav files on big endian CPUs
242        - added support for Ogg Vorbis sample files
243        - use loop markers from sample file if loop_start and loop_end are
244          not set in sfz file
245        - implemeted filters. Filter types: lowpass, bandpass, bandreject
246          and highpass. 1, 2, 4 and 6 pole filters. Opcodes: fil_type,
247          cutoff, resonance, fil_veltrack, fil_keytrack, fil_keycenter,
248          cutoff_cc, cutoff_chanaft.
249        - bugfix: zero ampeg_sustain didn't work
250        - added support for velocity effect on amplifier envelope time
251          (ampeg_vel2attack, ampeg_vel2decay, ampeg_vel2sustain and
252          ampeg_vel2release)
253        - added support for EG hold (ampeg_hold)
254        - added support for sample offset (offset)
255        - use the newly introduced signal units model
256        - implemented opcodes lfoN_delay,
257          lfoN_freq, lfoN_pan, lfoN_cutoff, lfoN_resonance
258        - implemented opcodes ampeg_delay, ampeg_vel2delay
259          pitcheg_delay, pitcheg_start, pitcheg_attack, pitcheg_hold,
260          pitcheg_decay, pitcheg_sustain, pitcheg_release, pitcheg_vel2delay,
261          pitcheg_vel2attack, pitcheg_vel2hold, pitcheg_vel2decay,
262          pitcheg_vel2sustain, pitcheg_vel2release, pitcheg_depth
263        - implemented opcodes pitchlfo_delay, pitchlfo_freq,
264          pitchlfo_depth, fillfo_delay, fillfo_freq, fillfo_depth,
265          amplfo_delay, amplfo_freq, amplfo_depth
266        - implemented opcodes fileg_delay, fileg_start, fileg_attack,
267          fileg_hold, fileg_decay, fileg_sustain, fileg_release, fileg_vel2delay,
268          fileg_vel2attack, fileg_vel2hold, fileg_vel2decay, fileg_vel2sustain,
269          fileg_vel2release
270        - implemented opcode lfoN_wave
271        - implemented opcode pitchlfo_depthccN
272        - implemented opcodes lfoN_phase, lfoN_phase_onccX,
273          lfoN_pitch, lfoN_pitch_onccX
274        - implemented opcodes pitchlfo_fade,
275          fillfo_fade, amplfo_fade, lfoN_fade, lfoN_fade_onccX
276        - implemented opcodes fillfo_freqccN,
277          pitchlfo_freqccN, amplfo_freqccN, lfoN_freq_onccX
278        - implemented opcodes ampeg_delayccN, ampeg_startccN,
279          ampeg_attackccN, ampeg_holdccN, ampeg_decayccN, ampeg_sustainccN,
280          ampeg_releaseccN, egN_timeX_onccY, egN_levelX_onccY
281        - lfoN_* and egN_* opcodes defined in group sections
282          are now taken into account
283        - implemented curves
284        - implemented opcodes volume_onccN, volume_curveccN
285        - implemented opcode volume_smoothccN
286        - implemented opcodes fillfo_depthccN, amplfo_depthccN,
287          lfoN_volume, lfoN_volume_onccX, lfoN_volume_smoothccX,
288          lfoN_freq_smoothccX, lfoN_pitch_smoothccX, lfoN_pan_onccX,
289          lfoN_pan_smoothccX, lfoN_cutoff_onccX, lfoN_cutoff_smoothccX,
290          lfoN_resonance_onccX, lfoN_resonance_smoothccX, lfoN_delay_onccX
291        - implemented opcode end
292        - implemented opcodes egN_amplitude_onccX,
293          egN_volume, egN_volume_onccX, egN_cutoff, egN_cutoff_onccX,
294          egN_pitch, egN_pitch_onccX, egN_resonance, egN_resonance_onccX
295        - implemented opcodes xfin_lokey, xfin_hikey,
296          xfout_lokey, xfout_hikey, xf_keycurve, xfin_lovel, xfin_hivel,
297          xfout_lovel, xfout_hivel, xf_velcurve, xfin_loccN, xfin_hiccN,
298          xfout_loccN, xfout_hiccN, xf_cccurve
299        - implemented opcodes pan_onccN, pan_smoothccN,
300          pan_curveccN, egN_pan, egN_pan_curve, egN_pan_onccX,
301          egN_pan_curveccX, pitch_veltrack
302        - when failed to parse a sfz file
303          print the line number on which the error occurs
304        - use common pool of CC objects to minimize RAM usage
305        - implemented opcodes amplfo_delay_onccN,
306          amplfo_fade_onccN, fillfo_delay_onccN, fillfo_fade_onccN,
307          pitchlfo_delay_onccN, pitchlfo_fade_onccN
308        - implemented opcodes fileg_delay_onccN,
309          fileg_start_onccN, fileg_attack_onccN, fileg_hold_onccN,
310          fileg_decay_onccN, fileg_sustain_onccN, fileg_release_onccN,
311          fileg_depth_onccN, pitcheg_delay_onccN, pitcheg_start_onccN,
312          pitcheg_attack_onccN, pitcheg_hold_onccN, pitcheg_decay_onccN,
313          pitcheg_sustain_onccN, pitcheg_release_onccN, pitcheg_depth_onccN
314        - implemented automatic aliasing *ccN <-> *_onccN
315        - *lfo_freqccN wasn't working when the respective *lfo_freq
316          was not set or was set to zero
317        - lfoN_freq_onccX wasn't working when lfoN_freq
318          was not set or was set to zero
319        - implemented opcodes resonance_onccN, resonance_smoothccN,
320          resonance_curveccN, cutoff_smoothccN, cutoff_curveccN
321        - implemented opcodes fillfo_depthchanaft,
322          fillfo_freqchanaft, amplfo_depthchanaft, amplfo_freqchanaft,
323          pitchlfo_depthchanaft, pitchlfo_freqchanaft
324        - implemented opcodes pitch_onccN,
325          pitch_curveccN, pitch_smoothccN, pitch_stepccN
326        - implemented opcodes volume_stepccN, pan_stepccN,
327          cutoff_stepccN, resonance_stepccN, lfoN_freq_stepccX,
328          lfoN_volume_stepccX, lfoN_pitch_stepccX, lfoN_pan_stepccX,
329          lfoN_cutoff_stepccX, lfoN_resonance_stepccX
330        - implemented opcodes eq1_freq, eq2_freq, eq3_freq,
331          eq1_freqccN, eq2_freqccN, eq3_freqccN, eq1_bw, eq2_bw, eq3_bw,
332          eq1_bwccN, eq2_bwccN, eq3_bwccN, eq1_gain, eq2_gain, eq3_gain,
333          eq1_gainccN, eq2_gainccN, eq3_gainccN
334        - implemented opcodes delay, delay_onccN, delay_random,
335          delay_samples, delay_samples_onccN
336        - implemented opcodes egN_eq1gain, egN_eq2gain, egN_eq3gain,
337          egN_eq1gain_onccX, egN_eq2gain_onccX, egN_eq3gain_onccX, egN_eq1freq,
338          egN_eq2freq, egN_eq3freq, egN_eq1freq_onccX, egN_eq2freq_onccX,
339          egN_eq3freq_onccX, egN_eq1bw, egN_eq2bw, egN_eq3bw, egN_eq1bw_onccX,
340          egN_eq2bw_onccX, egN_eq3bw_onccX, lfoN_eq1gain, lfoN_eq2gain,
341          lfoN_eq3gain, lfoN_eq1gain_onccX, lfoN_eq2gain_onccX, lfoN_eq3gain_onccX,
342          lfoN_eq1gain_smoothccX, lfoN_eq2gain_smoothccX, lfoN_eq3gain_smoothccX,
343          lfoN_eq1gain_stepccX, lfoN_eq2gain_stepccX, lfoN_eq3gain_stepccX,
344          lfoN_eq1freq, lfoN_eq2freq, lfoN_eq3freq, lfoN_eq1freq_onccX,
345          lfoN_eq2freq_onccX, lfoN_eq3freq_onccX, lfoN_eq1freq_smoothccX,
346          lfoN_eq2freq_smoothccX, lfoN_eq3freq_smoothccX, lfoN_eq1freq_stepccX,
347          lfoN_eq2freq_stepccX, lfoN_eq3freq_stepccX, lfoN_eq1bw, lfoN_eq2bw,
348          lfoN_eq3bw, lfoN_eq1bw_onccX, lfoN_eq2bw_onccX, lfoN_eq3bw_onccX,
349          lfoN_eq1bw_smoothccX, lfoN_eq2bw_smoothccX, lfoN_eq3bw_smoothccX,
350          lfoN_eq1bw_stepccX, lfoN_eq2bw_stepccX, lfoN_eq3bw_stepccX
351        - implemented opcodes eq1_vel2freq, eq2_vel2freq,
352          eq3_vel2freq, eq1_vel2gain, eq2_vel2gain, eq3_vel2gain
353        - sfz parser: allow double spaces in sample filenames
354        - sfz parser: allow absolute paths for sample filenames
355        - use linear decay and release for filter and pitch EG
356        - bugfix: only the first amp_veltrack definition in a file was
357          used
358        - bugfix: looping was disabled if loop_start was set to 0
359        - allow regions with end=-1 to turn off other regions using the
360          group and off_by opcodes (#168)
361        - made end=0 play the whole sample
362        - fixed support for lochan and hichan opcodes (#155)
363        - fixed crash when using lochan/hichan opcodes (#187)
364        - sfz parser: allow -200 to 200 for pan_oncc opcode (#182)
365        - added FLAC support (#191)
366        - sfz parser bugfix: lines starting with whitespace were ignored
367        - added amplitude opcode
368        - added support for "#include" instruction
369          (modified patch which was originally posted by Sergey on LS mailing list)
370        - bugfix: generation of velocity curves etc should not be done
371          after each "#include", only after the main file is parsed
372        - bugfix: line numbers in error messages were wrong after "#include"
373        - added support for float and 32 bit sample files
375      * SoundFont format engine:
376        - Initial implementation (not usable yet)
377        - RT-safeness: avoid malloc in audio thread
378        - fixed a bug that could cause voice stealing to fail
379        - fine-tuned amplitude EG (by switching from gig to sfz EG)
380        - initial implementation of Vibrato LFO and Modulation LFO
381        - initial implementation of cutoff filter
382        - use linear decay and release for filter and pitch EG
384      * Host plugins (VST, AU, LV2, DSSI):
385        - AU bugfix: failed to destroy its audio/MIDI devices
386        - Listen to all interfaces on Mac OS X (INADDR_ANY)
387        - VST bugfix: If the host called resume() before and after
388          changing sample rate or block size, the number of channels was
389          incorrectly set to two. This caused silence in Cubase 5.
390        - save engine type (gig, sfz or sf2) in plugin state
391        - VST: when opening Fantasia, look for both 32 and 64 bit Java on
392          64 bit Windows
393        - AU: changed number of output channels from one stereo to 16
394          stereo
395        - VST: made it possible to build the VST plugin for Mac
396        - AU: link AU plugin dynamically if --disable-shared isn't
397          specified
398        - LV2 "state" extension support (patch by David Robillard)
399        - VST bugfix: instrument loading hang and crashed the host when
400          the plugin was loaded a second time (#174)
401        - plugin bugfix: instrument loading hang when the plugin was
402          loaded a second time (this time it's for Linux and Mac, previous
403          similar fix was for Windows)
404        - thread safety fixes for the instrument loading thread
405        - LV2: use the new lv2 package if present
406        - VST: try to open Fantasia automatically on Linux and Mac too (on
407          Linux, the Fantasia jar should be placed in <prefix>/share/java)
408        - VST: fixed crashes on Linux Ardour and EnergyXT
409        - DSSI bugfix: it wasn't possible to change engine type. The MIDI
410          port and audio channel routing for DSSI plugins are now visible.
411        - LV2: use urid and atom extensions instead of deprecated uri-map
412          and event
413        - LV2: lv2 package 1.0 is now required to build the LV2 plugin
414        - LV2: changed number of output channels to 16 stereo, just like
415          the VST and AU plugins
416        - LV2: fixed save/restore of SFZ state (patch by David Robillard)
417        - LV2: made LV2 plugin buildable on Windows and Mac
418        - VST: implemented retrieval and switching of programs using the
419          sampler's internal MIDI instrument mapping system
421      * Instrument editor interface:
422        - Changed instrument editor plugin interface, providing additional
423          informations like the EngineChannel for which the instrument editor was
424          spawned for. This allows the instrument editors to interact more actively
425          with the sampler.
427      * MIDI driver:
428        - ALSA MIDI driver supports now "NAME" device parameter, for overriding
429          the ALSA sequencer client name
430        - removed limit of maximum amount of MIDI ports per MIDI device, since
431          there is no reason for this limit
432        - MME: fixed memory handling bug found with cppcheck
433        - MME: removed compiler warning
434        - CoreMIDI: implemented driver specific port parameter "CORE_MIDI_BINDINGS",
435          which allows to retrieve the list of CoreMIDI clients / ports and to connect
436          to them a la JACK, via the usual sampler APIs
437        - CoreMIDI: added driver specific port parameter "AUTO_BIND", if enabled
438          the driver will automatically connect to other CoreMIDI clients' ports
439          (e.g. external MIDI devices being attached to the Mac)
440        - added support for MIDI note on velocity filter
441        - CoreMIDI: fixed memory deallocation error
442        - Fixed variable underflow in VirtualMidiDevice, which caused graphical
443          virtual keyboards in frontends / instrument editors being stuck.
444        - Bugfix in VirtualMidiDevice: process note on with velocity 0 as note off.
445        - Implemented missing handling of MIDI "running status".
446        - CoreMIDI fix: a MIDIPacket can contain more than one event per packet.
447        - MME bugfix: driver wasn't closed properly
448        - CoreMIDI: automatically connect to all input sources by default (driver
449          parameter "AUTO_BIND").
450        - CoreMIDI: fixed auto bind feature to CoreMIDI ports that go online
451        - CoreMIDI: fixed minor memory leak
453      * audio driver:
454        - ASIO driver fixes for newer gcc versions (fix from PortAudio)
455        - JACK audio: react on sample rate changes.
456        - JACK audio: react on buffer size changes.
457        - JACK audio: jack_port_get_buffer() was cached and called outside
458          RT context.
459        - ASIO driver: removed compiler warnings
460        - CoreAudio: fixed minor error handling bug
461        - ASIO driver: be more verbose when no ASIO card could be found (fixes #203)
462        - JACK audio: return the JACK server's current sample rate as default value
463          for audio device parameter "SAMPLERATE" (fixes #166).
465      * LSCP server:
466        - added support for sending MIDI CC messages via LSCP command
467          "SEND CHANNEL MIDI_DATA CC <sampler-chan> <ctrl> <val>"
468        - added LSCP command "GET AVAILABLE_EFFECTS"
469        - added LSCP command "LIST AVAILABLE_EFFECTS"
470        - added LSCP command "GET EFFECT INFO <effect-index>"
471        - added LSCP command "CREATE EFFECT_INSTANCE <effect-index>"
472        - added LSCP command
473          "CREATE EFFECT_INSTANCE <effect-system> <module> <effect-name>"
474        - added LSCP command "DESTROY EFFECT_INSTANCE <effect-instance>"
475        - added LSCP command "GET EFFECT_INSTANCES"
476        - added LSCP command "LIST EFFECT_INSTANCES"
477        - added LSCP command "GET EFFECT_INSTANCE INFO <effect-instance>"
478        - added LSCP command
479          "GET EFFECT_INSTANCE_INPUT_CONTROL INFO <effect-instance> <input-control>"
481          <effect-instance> <input-control> <value>"
482        - added LSCP command "GET SEND_EFFECT_CHAINS <audio-device>"
483        - added LSCP command "LIST SEND_EFFECT_CHAINS <audio-device>"
484        - added LSCP command "ADD SEND_EFFECT_CHAIN <audio-device>"
485        - added LSCP command
486          "REMOVE SEND_EFFECT_CHAIN <audio-device> <effect-chain>"
487        - added LSCP command
488          "GET SEND_EFFECT_CHAIN INFO <audio-device> <effect-chain>"
489        - added LSCP command "APPEND SEND_EFFECT_CHAIN EFFECT <audio-device>
490          <effect-chain> <effect-instance>"
491        - added LSCP command "INSERT SEND_EFFECT_CHAIN EFFECT <audio-device>
492          <effect-chain> <effect-chain-pos> <effect-instance>"
493        - added LSCP command "REMOVE SEND_EFFECT_CHAIN EFFECT <audio-device>
494          <effect-chain> <chain-pos>"
495        - added LSCP command "SET FX_SEND EFFECT <sampler_channel>
496          <fx_send_id> <effect_chain> <chain_pos>"
497        - added LSCP command "REMOVE FX_SEND EFFECT <sampler_channel> <fx_send_id>"
498        - added LSCP commands "SUBSCRIBE EFFECT_INSTANCE_COUNT",
501        - provide comprehensive error messages on LSCP syntax errors
502          (suggesting expected next non-terminal symbols)
504      * LSCP shell:
505        - Added support for auto correction of obvious and trivial syntax mistakes.
506        - Added support for auto completion by tab key.
507        - Show currently available auto completion while typing.
508        - Added support for browsing command history with up / down keys.
509        - Show all possible next symbols immediately right to the current command
510          line while typing (no double tab required for this feature, as it would
511          be the case in other shells).
512        - Added support for moving cursor left/right with arrow keys.
513        - Added support for built-in LSCP reference documentation, which will
514          automatically show the relevant LSCP reference section on screen as soon
515          as one specific LSCP command was detected while typing on the command
516          line.
518      * Real-time instrument scripts:
519        - Implemented built-in script array variable %CC.
520        - Implemented built-in script int variable $CC_NUM.
521        - Implemented built-in script int variable $EVENT_NOTE.
522        - Implemented built-in script int variable $EVENT_VELOCITY.
523        - Implemented built-in script constant variable $VCC_MONO_AT.
524        - Implemented built-in script constant variable $VCC_PITCH_BEND.
525        - Implemented execution of script event handler "init".
526        - Implemented execution of script event handler "controller".
527        - Implemented execution of script event handler "note".
528        - Implemented execution of script event handler "release".
529        - Implemented built-in script function "play_note()" (only two of the
530          max. four function arguments are currently implemented yet though).
531        - Implemented built-in script int variable $EVENT_ID.
532        - Implemented built-in script function "ignore_event()"
533        - Implemented built-in script function "ignore_controller()" (may have one
534          or no argument).
535        - Implemented built-in script function "set_controller()".
536        - Added extended script VM for the Gigasampler/GigaStudio format sampler
537          engine, which extends the general instrument script VM with Giga format
538          specific variables and functions.
539        - Giga format scripts: added built-in script int constant variables
550        - Giga format scripts: Implemented built-in script function
551          "gig_set_dim_zone(event_id, dimension, zone)".
552        - Implemented built-in script int array variable $KEY_DOWN.
553        - Implemented built-in script function "abs()".
554        - Implemented built-in script function "random()".
555        - Implemented built-in script function "num_elements()".
556        - Implemented built-in script function "note_off()".
557        - Implemented built-in script function "set_event_mark()".
558        - Implemented built-in script function "delete_event_mark()".
559        - Implemented built-in script function "by_marks()".
560        - Added built-in script int const variables $MARK_1 to $MARK_28.
561        - Built-in script functions "ignore_event()", "note_off()" and
562          "gig_set_dim_zone()" now also accept an array of event IDs as argument
563          (i.e. return value of new script function "by_marks()").
564        - Pass/preserve polyphonic variable data from respective "note" event
565          handler to "release" event handler.
567      * Bug fixes:
568        - Fixed crash which may occur when MIDI key + transpose is out of range
569        - minor valgrind fixes
570        - fixed crash which occurred when changing an already deployed sampler
571          channel to a different engine type
572        - fixed crash when deleting a sampler channel or changing engine
573          type while an instrument load was in progress
574        - bugfix: playing a note while changing the instrument could cause
575          a crash, or give "Handing back unknown region" error messages
576        - bugfix: calling SET VOICES (which Fantasia does on start and
577          refresh) could cause instruments to be unloaded
578        - Mac OS X: fixed name collision of enum in EffectControl and
579          wrong name of destructor in AudioOutputDeviceCoreAudio.cpp
580        - Mac OS X: fixed hanging threads
581        - Windows: disabled the previous thread fix on non-Mac systems, as
582          it caused hanging threads on Windows
583        - Fixed possible crashes due to corrupted MIDI/audio device list
584          after MIDI/audio device creation failure
585        - When creating MIDI instrument map entries with "PERSISTENT" type, the
586          instruments were uselessly precached with zero samples, however it still
587          took the full preloading time and on 1st program change the respective
588          instrument was completely reloaded again.
589        - fixed handling of rapid bank select and program change messages
590          sent to the same sampler channel (patch from the Open Octave
591          project, slightly adjusted)
592        - fixed crash when trying to create an effect instance with controls
593          which min and/or max values depend on the sample rate
594        - fixed bug #162
595        - bugfix: LADSPA_PATH was not evaluated correctly when containing
596          multiple paths (#165)
597        - thread safety fixes for the instrument loading thread
598        - bugfix: instrument loading crashed for sfz and sf2 in Ardour
599          (#176)
600        - more thread safety fixes for the instrument loading thread
601        - sfz/sf2 engine: fixed crash when using small audio fragment size
602        - Mac OS X: fixed crash when unloading plugin on 10.7 and later
603        - Mac OS X: fixed process hang when unloading 32-bit plugin (bug
604          introduced in previous fix)
605        - fixed crash when a channel received a program change while
606          playing a note in a key group
607        - fixed erroneous error message piping in VoiceBase.h
608          (labelled "Disk stream not available in time")
609        - Update effects on sample rate & period size changes (to avoid
610          crashes and noise on such transitions).
611        - ignore missing LADSPA paths without ignoring valid LADSPA paths
612          (fixes #208)
613        - Fixed bug in LSCP grammar definition which caused a statement like
614          "GET SERVER INFOasdf\n" to be accepted as valid statement (was so far
615          practically irrelevant, however it caused problems with the new LSCP
616          shell's auto completion feature).
617        - Fixed MIDI program change messages being ignored if quickly executed
618          after each other (fixes #231).
620    Version 1.0.0 (31 July 2009)
622      * packaging changes:
623        - autoconf bugfix: the PKG_CONFIG variable wasn't initialized properly,
624          causing e.g. the libgig test to fail when
625          "./configure --disable-jack-driver" was used
626          (patch by Alexis Ballier)
627        - fixed compilation with gcc 4.3
628        - fixes for building on OS X (thanks to Ebrahim Mayat for testing)
629        - fixed configure so it detects x86_64 (#107)
630        - fixes for building with newer MinGW versions
631        - fix for building with bison 2.4 (#111)
632        - fixed building with libgig installed in a non-standard directory
633        - minor fix in configure for mmsystem.h detection on MinGW
634        - Windows: look for editor plugins and Fantasia using base
635          directory of liblinuxsampler dll (look in the same directory and one
636          directory above)
637        - configure script fix: removed unconditional use of SSE
638        - fixed building with sqlite installed in a non-standard directory
639        - when cross-compiling, don't try to create instruments.db
640        - fix for new mingw-w64 version, which has usleep
642      * general changes:
643        - bugfix: on some POSIX systems instrument editor plugins refused to
644          load as we used a non-portable Linux specific struct field
645          (fixes bug #70, patch by Ronald Baljeu)
646        - fixed endless loop which occured when loading an instrument editor
647          plugin DLL on Windows systems failed
648        - fixed memory leaks that occurred when liblinuxsampler was unloaded
649        - optimized the SynchronizedConfig class so it doesn't wait
650          unnecessarily long after an update
651        - added support for notifying instrument editors on note-on / note-off
652          events (e.g. to highlight the pressed keys on the virtual keyboard
653          of gigedit)
654        - added support for triggering notes by instrument editors (see above)
655        - be verbose on DLL load errors (on Linux)
656        - fixed di-harmonic triangle LFO implementation (this LFO implementation
657          is only used by very few systems, most pick the int math
658          implementation, which is usually faster)
659        - fixes for audio drivers with varying buffer sizes
660        - experimental support for running LinuxSampler as a DSSI, LV2 and
661          VST plugin
662        - notification events for stream/voice count statistics are now sent
663          only when there are actual changes
664        - added memory ordering constraints to improve stability on
665          multi-core and multi-cpu systems
666        - maximum voices and disk streams can now be altered at runtime
667        - fixed CPU feature detection on x86_64 (maybe fixes #108)
668        - automatic stacktrace mechanism is now turned off by default and can
669          be switched on by command line option "--stacktrace" (the automatic
670          stacktrace mechanism seems to be broken on most systems at the moment)
671        - C++ API method InstrumentManager::LaunchInstrumentEditor() now returns
672          a pointer to the launched InstrumentEditor object
673        - added optional 3rd party user data parameter for following
674          liblinuxsampler C++ API methods: InstrumentEditor::Main(),
675          InstrumentEditor::Launch(),
676          InstrumentManager::LaunchInstrumentEditor()
677        - theoretical fix: made SynchronizedConfig follow C++0x memory
678          model more strictly
679        - fixes for using large audio device buffers
680        - Windows: add the installation directory to the DLL search path
681          when loading an editor plugin (solves problems with VST and
682          gigedit on systems with other GTK versions installed)
683        - updated linuxsampler man page
685      * audio driver:
686        - removed the nonsense audio channel constraint (which was hard coded to
687          max. 100 audio channels) for most audio drivers
688        - JACK audio driver did not offer a device parameter "SAMPLERATE" as
689          opposed to the LSCP specs
690        - bugfix: the SAMPLERATE parameter of some drivers (e.g. JACK)
691          reflected the wrong value
692        - fixed a memory management bug in ASIO driver
693        - Makefile fix: JACK_CFLAGS wasn't used
694        - JACK: use jack_client_open instead of the deprecated
695          jack_client_new
696        - added (experimental) CoreAudio driver
697        - applied old fixes to the ASIO driver that were included in the
698          previous binary release but accidentally never committed to CVS
699          (fixes #117)
700        - fixes for ASIO on mingw-w64 (iasio wrapper is not needed on
701          win64)
702        - VST: added support for sample rate and buffer size changes
703        - VST: close editor (Fantasia) when the VST is removed
704        - VST: avoid opening Fantasia more than once for each VST instance
705        - VST: export main function as "main" on Linux too (fix for
706          energyXT)
707        - VST: changed number of output channels from one stereo to 16
708          stereo
709        - added channel routing, fxsends and midi maps to the settings
710          stored in the plugin state
711        - performance optimization of AudioChannel::MixTo() and
712          AudioChannel::CopyTo() methods using GCC vector exensions
713          (if available)
714        - ASIO fixes: avoid initializing the device twice, avoid throwing
715          exception when getting parameters from a disconnected device
717      * MIDI driver:
718        - added JACK MIDI driver
719        - dispatch bank select as ordinary CC as well, the user might seriously
720          want to (mis)use it for some purpose ("fixed" in all current MIDI
721          input drivers: ALSA, CoreMIDI, JACK, MidiShare, MME)
722        - bugfix: pitch bend wasn't working with JackMidi, VST, LV2, MME,
723          CoreMidi or AU
724        - fixed mingw-w64 compilation error in MME driver
725        - made program change handling in MIDI thread real-time safe by
726          moving the logic to a non-RT thread
727        - fixed minor memory leak in ALSA driver
729      * instruments database:
730        - avoid time consuming samples scanning when adding instruments
731          to the instruments database
732        - added support for handling lost files in the instruments database
733        - Implemented option for adding instruments in separate directories
734          in the instruments database
735          (patch by Chris Cherrett & Andrew Williams, a bit adjusted)
736        - work-around for missing fnmatch function on Windows to make
737          instrument database compilable
738        - added instrument database support on Windows
739          works with both standalone mode and VST plugin.
740          the instruments DB file is located in
741          %USERPROFILE%\.linuxsampler\instruments.db which allows different
742          databases for each windows user
743          if no DB is present it automatically creates the .linuxsampler subdir
744          and then creates an empty DB
745        - fixed recursive import, which was broken on Windows
747      * Gigasampler format engine:
748        - fixed a memory leak that could happen when a channel was deleted
749          while notes were playing
750        - made it possible to load an instrument even if the audio thread
751          isn't running
752        - added partial support for the "Controller Triggered" MIDI rule,
753          enough for piano gigs with pedal noise samples
754        - minor fix: only mark FX sends as being modified if really the
755          respective FX send MIDI controller was used
756        - added support for GM global device volume SysEx message
757          (can be selected at compile time to either apply globally to the
758          whole sampler [default] or only to the sampler channels that are
759          connected to the respective MIDI input port the SysEx message arrived
760          on)
761        - bugfix: notes triggered at position 0 in the audio buffer were
762          sometimes wrongly killed in the same buffer, causing no sound to
763          be played
764        - added support for chromatic / drumkit mode Roland GS Sysex message
765          which is usally used to switch a part between chromatic sounds and
766          drumkit sounds (as opposed to their common default setting of MIDI
767          part 10 being a drumkit part and all other ones chromatic parts), in
768          LS however one can switch between the first 16 MIDI instrument maps
769          defined for the sampler
770        - made it possible to create multiple sample channels even if the
771          audio thread isn't running
772        - fixed crash when removing channel with active voices (#116)
773        - bugfix: on sample reference changes (instrument editor), only
774          un-cache the respective sample if it's really not used by any
775          sampler engine anymore
776        - re-cache samples in case they were changed by an instrument editor,
777          e.g. when a sample was added while playing (#82)
778        - fixed hanging notes which occured when note-off event had the exact
779          same time stamp as the voice's note-on event and occured both in the
780          same audio fragment cycle (fixes bug #112)
781        - added support for the "fine tune" and "pitch bend range"
782          instrument-level gig parameters
783        - fixed minor artifacts in pitch bend handling
784        - added support for GS Reset SysEx message
785        - allow gig files to use unlimited downward pitch shifting
786        - added a limit check for upward pitch shifting
787        - bugfix: sometimes, when playing a note twice fast, the second
788          note was silent
789        - fixed crash happening when a pitch bend event arrived at the
790          same time a new instrument was loading
792      * LSCP server:
793        - added new LSCP event "CHANNEL_MIDI" which can be used by frontends to
794          react on MIDI data arriving on certain sampler channels (so far only
795          Note-On and Note-Off events are sent via this LSCP event)
796        - added new LSCP event "DEVICE_MIDI" which can be used by frontends to
797          react on MIDI data arriving on certain MIDI input devices (so far only
798          Note-On and Note-Off events are sent via this LSCP event)
799        - added new LSCP commands: FIND LOST DB_INSTRUMENT_FILES and
801        - added new LSCP command: SEND CHANNEL MIDI_DATA which can be used by
802          frontends to send MIDI messages to specific sampler channel
803        - added two additional fields to GET FILE INSTRUMENT INFO command -
805        - bugfix: the bank number provided by MIDI_INSTRUMENT_INFO notifications
806          was incorrect
807        - Optimized the retrieval of the MIDI instrument mappings
808        - added new LSCP command "SET VOICES" to globally alter the maximum
809          amount of voices, added new LSCP event "GLOBAL_INFO:VOICES" which will
810          be triggered respectively
811        - added new LSCP command "SET STREAMS" to globally alter the maximum
812          amount of disk streams, added new LSCP event "GLOBAL_INFO:STREAMS"
813          which will be triggered respectively
814        - bugfix: retry if "select" returns EINTR (this fixes a crash when
815          a gigedit file dialog is opened)
816        - close all connections when LSCPServer is deleted
817        - hard close of all sockets on exit
818        - bugfix: SET CHANNEL MIDI_INPUT_TYPE didn't work with the MME
819          driver
821      * Bug fixes:
822        - fixed a crash which occurs when removing a sampler channel waiting
823          to start instrument loading after another channel
824        - fixed a crash which occurs when removing a sampler channel with
825          instrument loading in progress (bug #113)
826        - fixed termination caused by uncaught exception when adding MIDI
827          instrument with PERSISTENT load mode
828        - fixed possible iterator invalidations when resetting the sampler
829        - fixed memory leaks when issuing the following LSCP commands:
834        - fixed possible compilation error when sqlite is not present
835        - fixed orphaned pointers when setting maximum voices limit (bug #118)
836        - fixed crash when changing the audio output device of a sampler
837          channel with loaded instrument and start playing notes
838        - fixed endless loop in Engine::SuspendAll() (bug #120)
839        - fixed a low-level atomic load function that was broken on 64-bit
840          PowerPC, which probably could cause crashes on that platform
841        - fixed a memory management error which could cause a crash when a
842          plugin was unloaded
843        - bugfix: two private structs had the same name, which could cause
844          problems if the linker chose the wrong constructor
845        - fixed low-level ConditionServer usage bug that caused lockups on
846          Windows
849    Version 0.5.1 (6 December 2007)
851      * packaging changes:
852        - added autoconf checks for pthread library
853        - added autoconf check for pthread bug found on certain NPTL-enabled
854          glibc versions (see Gentoo bug report #194076)
855        - added autoconf checks for MS Windows
857      * general changes:
858        - bugfix: the thread used by an editor plugin didn't die when the
859          editor closed
860        - bugfix: Ringbuffer.h: fill_write_space_with_null() did not zero
861          out all the space. operator--() did not apply size_mask after
862          decrementing the read_ptr. DEFAULT_WRAP_ELEMENTS set to 0 in
863          order to avoid problems with the _NonVolatileReader functions.
864        - bugfix: Stream.h: added a missing divide by BytesPerSample in
865          GetWriteSpace(). Since this function is currently only used in
866          the stream's qsort() compare function, it didn't trigger any
867          bugs.
868        - Resampler.h, Synthesizer.h: cubic interpolation now works in
869          24bit mode too. Faster method to read 24bit words on little
870          endian machines (x86): replaced 3 byte reads + shifts with a 1
871          unaligned 32bit read and shift
872        - experimental support for MS Windows (MIDI input via MME, AUDIO
873          output via ASIO)
874        - made handling of SIGINT signal (Ctrl-C) a bit more robust
875        - support for monitoring the total number of active disk streams
876          (new LSCP commands: GET TOTAL_STREAM_COUNT,
879      * AUDIO driver:
880        - added Windows ASIO low latency audio driver
882      * MIDI driver:
883        - added MME Windows MIDI driver
885      * LSCP server:
886        - added support for Windows style path / filenames, however with
887          forward slash path separators instead of backslash
888          (i.e. "C:/foo/bar.gig")
889        - allow naughty liblscp to send non-string device parameters within
890          apostrophes as well
891        - added new LSCP commands: "GET FILE INSTRUMENTS <file>",
892          "LIST FILE INSTRUMENTS <file>" and
893          "GET FILE INSTRUMENT INFO <file> <index>" for retrieving informations
894          about an arbitrary instrument file on the system where the sampler is
895          running on
897    Version 0.5.0 (15 October 2007)
899      * packaging changes:
900        - config.h is not going to be installed along with liblinuxsampler's
901          API header files anymore
902        - only the API relevant header (and source) files will be exported to
903          the Doxygen API documentation (explicitly listed in Doxyfile.in)
904        - added completely new XCode project files for Mac OSX which is now
905          capable to execute our autoconf environment, thus no need anymore
906          to maintain the compile time configuration file (osx/version.h) for
907          OSX manually (patch by Toshi Nagata)
908        - fixed buggy boolean --enable-foo / --disable-foo configure script
909          parameters
910        - global.h now only covers global definitions that are needed for the
911          C++ API header files, all implementation internal global definitions
912          are now in global_private.h
913        - atomic.h is not exposed to the C++ API anymore
914        - no need to include config.h anymore for using LS's API header files
915        - fixed warnings in API doc generation
917      * general changes:
918        - replaced the old, confusing MIDI program change mechanism by a
919          flexible MIDI instrument mapper which allows to map arbitrary
920          (MIDI bank, MIDI program) pairs with arbitrary
921          (engine type, instrument file, file index) triplets which will be
922          loaded on the respective channel when such MIDI program change
923          messages arrive, beside that, each entry allows to define a life-time
924          strategy for the instrument, so the user can define whether the
925          instrument should i.e. be permanently loaded (to be able to switch
926          quickly among sounds) or i.e. loaded just on demand when the
927          respective program change arrives (to safe RAM space), as well as a
928          global volume factor for each entry, so the user can adjust the volume
929          dynamic of his mapped instrument collection without having to modify
930          the instrument files, also one can manage arbitrary amount of such
931          MIDI instrument maps and assign each sampler channel individually
932          a certain map, so that i.e. separation of normal instruments and
933          drumkits is possible
934        - new notification events for tracking changes to audio/MIDI devices,
935          MIDI instrument maps, MIDI instruments, FX sends, global volume.
936        - sampler was limited to load max. 200 instruments in the background
937          due to a constant size RingBuffer FIFO which is now replaced by a
938          dynamic (unlimited) size std::list FIFO
939        - added FX sends, these allow to route audio signals to arbitrary audio
940          output channels for being processed by external effect processors
941          (i.e. jack-rack), the send levels are controllable via arbitrary MIDI
942          controllers
943        - global (sampler wide) volume can now be controlled at runtime
944        - Implemented new, improved notification system
945        - fixed compilation errors regarding OSX
946          (patch by Toshi Nagata)
947        - implemented instruments database
948        - added support for escape sequences to the instruments database
949        - added highly experimental support for on-the-fly instrument editing
950          within the sampler's process (by using instrument editor plugins),
951          you'll notice the new "Registered instrument editors:" message on
952          startup, added a new LSCP command:
953          "EDIT CHANNEL INSTRUMENT <sampler-channel>"
954          to spawn a matching instrument editor for the instrument on the
955          given sampler channel, the plugin path can be overridden at compile
956          time with ./configure --enable-plugin-dir=/some/dir
957        - added experimental code for synchronizing instrument editors hosted
958          in the sampler's process to safely edit instruments while playing
959          without a crash (hopefully) by either suspending single regions
960          wherever possible or if unavoidable whole engine(s)
961        - fixed several issues in fundamental "Thread" class: set scheduling
962          policy and priority on thread level, set a minimum stack size for
963          thread (TODO: a reasonable value yet to be tested), bugfix: non-RT
964          threads simply inherited properties of starting thread instead of
965          setting their own policy and priority
966        - minor fix in our automatic stack trace mechanism on crashes, the
967          main process did not wait for the stack trace process to finish
968          its output
969        - fixed some minor memory leaks
970        - reenabled assembly features support, at the moment only for
971          enabling a fast denormal FPU mode (x86 platforms supporting SSE2)
972        - minor assembly fix in x86 features detection (don't use the PIC
973          register, to avoid relocations in the text segment at runtime)
974        - POSIX callback functions of Thread.h are hidden
976      * MIDI driver:
977        - dispatch bank select (MSB and LSB) messages
979      * audio driver:
980        - the ALSA audio output driver parameters now reflect the correct
981          parameter value ranges for the respective selected sound card
982          (patch by Till Wimmer, a bit fixed and extended)
984      * Gigasampler format engine:
985        - if a filter is used and EG2 finishes before EG1, let the voice
986          die when EG2 has finished (this fixes a problem with clicks and
987          voice starvation for some gigs)
988        - playback is no longer disabled during instrument loading
989        - all notes playing on a channel that changes its instrument keep
990          playing with the old instrument until they get a note off
991          command
992        - EG fix: a release value of zero could cause noises or crash
993        - handle MIDI coarse tuning messages (MIDI RPN #0 MSB #2 LSB)
994        - EG fine tuning: when attack is zero the EG starts at a level
995          above max sustain level, which means that there is a decay phase
996          even if sustain is 100%
997        - more EG fixes: the level could sometimes go below zero and cause
998          noises or crashes
999        - minor fix of EGDecay (patch by Toshi Nagata)
1000        - fixed compiler error when --enable-override-filter-type was
1001          supplied to the configure script (fixes #46)
1002        - disk thread: queue sizes are now proportional to CONFIG_MAX_STREAMS
1003          instead of a fix value
1004        - behavior fix: on MIDI CC# 65 (portamento on / off), 126 (mono mode),
1005          127 (solo mode) only kill voices if the respective mode really
1006          changed
1008      * LSCP server:
1009        - fixed compile time error for old Bison versions
1010          (i.e. v1.28 found on MacOS 10.4, patch by Toshi Nagata)
1011        - parser now supports extended ASCII character set
1012          (up to ASCII code 255, i.e. includes now umlauts and accents)
1013        - filename arguments in LSCP commands now allow to use escape
1014          sequences, that is directly literal as one of: \', \", \\, \n, \r,
1015          \f, \t, \v, or as octal ASCII code value like \132, or as hex ASCII
1016          code value like \xf2) (fixes bug #24)
1017        - the following LSCP commands now also support escape sequences for at
1018          least one of their text-based parameters (i.e. name, description):
1025        - returns verbose syntax errors (line and column where syntax error
1026          occured, the unexpected character and the actually expected, possible
1027          character(s), the latter only if less than 5 possibilities)
1028        - made sure that LSCP syntax is not affected by gigedit locale
1029          settings
1030        - bugfix regarding strings parameter lists: all comma separated lists
1031          of strings were treated as being one string containing commas
1032          (fixes #57)
1034      * Bug fixes:
1035        - fixed crash occurring on certain LSCP scripts (Bug 39)
1036        - another thread safety fix for lscp "load engine" and "set
1037          channel audio output device"
1038        - fixed a crash which occurs when reassigning the same engine
1039          on a sampler channel with connected MIDI device
1040        - fixed a crash which occurs when changing the number of ports of a MIDI
1041          device connected to a sampler channel to number less then or equal
1042          to the index of the port to which the sampler channel is connected.
1043        - The previous bindings were not been disconnected when altering
1044          the ALSA_SEQ_BINDINGS parameter. Introduced a NONE keyword for
1045          unsubscribing from all bindings (e.g. ALSA_SEQ_BINDINGS=NONE).
1046        - The active stream/voice count statistic was incorrect.
1047        - notification events were not been sent for some sampler
1048          channel changes
1049        - added default min and max values to restrict the number of allowed
1050          audio output channels and MIDI input ports
1051        - the connection to the PCM interface is now closed when destroying
1052          an audio output device
1053        - files with slash in their path or filename could not be loaded
1055      * test cases:
1056        - updated and fixed (haven't been touched in a while)
1058    Version 0.4.0 (24 November 2006)
1060      * packaging changes:
1061        - changed deprecated copyright attribute to license; added ldconfig
1062          to post-(un)install steps; added devel package for liblinuxsampler;
1063          to linuxsampler.spec (RPM)
1064        - install necessary development header files for allowing 3rd party
1065          applications to link against liblinuxsampler
1066        - liblinuxsampler's API documentation can be generated with 'make docs'
1067          (Doxygen required)
1068        - added benchmark to automatically detect the best triangle LFO
1069          implementation (currently either an integer math solution or a
1070          di-harmonic approximation), automatic detection can be overriden
1071          with --enable-signed-triang-algo=x and --enable-unsigned-triang-algo=x
1072          configure script argument though (mandatory for cross-compilation)
1073        - do not automatically pick optimized gcc flags if the user already
1074          provided some on his own (as CXXFLAGS)
1075        - added compile time option to disable processing of All-Notes-Off MIDI
1076          messages
1077        - added compile time options to allow disabling the various audio and
1078          MIDI drivers
1079        - fixed automatic GCC CPU switch detection on PPC
1080          (patch by Ebrahim Mayat)
1082      * Gigasampler format engine:
1083        - extensive synthesis optimization
1084          (reimplementation of EGs and LFO(s), removed synthesis parameter
1085          prerendering and the synthesis parameter matrix in general, splitting
1086          each audio fragment into subfragments now where each subfragment uses
1087          constant pitch and filter coefficients. The volume coefficient is
1088          linearly interpolated inside a subfragment, unless
1089          --disable-interpolate-volume is set.)
1090        - fine tuning of the EG modulation parameters
1091        - improved filter cutoff calculation by adding support for the
1092          following gig parameters: Cutoff freq (used when no cutoff
1093          controller is defined), Control invert, Minimum cutoff, Velocity
1094          curve and Velocity range. The keyboard tracking now scales
1095          cutoff frequency instead of resonance.
1096        - added support for gig parameter Resonance.
1097        - fixed bug in sysex handling (patch by Juan Linietsky)
1098        - added global volume attenuation of -9 dB (0.35f) to prevent clipping
1099          which can be overridden with --enable-global-attenuation
1100        - EG fixes: made the length of "attack hold" stage more
1101          accurate. Release stage can now start before attack stage
1102          ends. Cancel release didn't work when sustain was zero. Attack
1103          time now has a minimal value to prevent clicks.
1104        - fixed pitch changes larger than one octave
1105        - fixed EG3 (pitch envelope) synthesis which was neutral all the time
1106        - implemented portamento mode and solo mode (a.k.a 'mono mode'):
1107          all modes can be altered via standard GM messages, that is CC5 for
1108          altering portamento time, CC65 for enabling / disabling portamento
1109          mode, CC126 for enabling solo mode and CC127 for disabling solo mode
1110        - fine tuning of the curves for volume (CC7), pan (CC10 and gig
1111          parameter) and crossfade
1112        - added support for the "attenuation controller threshold" gig
1113          parameter
1114        - added smoothing of volume changes caused by control change
1115          messages
1116        - sample loop parameters are now taken from the DimensionRegion
1117          instead of the wave chunk
1118        - fixed keyswitching for v3 gigs with a number of keyswitch splits
1119          not equal to a power of two
1120        - reimplementation of the filter algorithm. The new filter is more
1121          accurate and supports all gig filter types, including bandreject
1122          and lowpass turbo.
1123        - real support for 24 bit samples - samples are not truncated to
1124          16 bits anymore
1125        - support for aftertouch (channel pressure, not polyphonic
1126          aftertouch)
1127        - LFO1 behaviour fixed (dampening from max volume instead of
1128          amplifying from 0)
1130      * LSCP server:
1131        - fixed application exit on broken pipe error (fixes bug #20)
1132        - fixed the notification messages delay due to lack of
1133          network activity (fixes bug #26)
1134        - fixed parser bug which occured on space(s) within device parameters
1135          (e.g. "SET AUDIO_OUTPUT_CHANNEL_PARAMETER 0 0 SOMEPARAM='foo bar'")
1137      * audio driver:
1138        - added aRts audio output driver (by no means RT safe)
1140      * MIDI driver:
1141        - fixed legacy sysex code which caused dispatching of MIDI SysEx
1142          messages several times instead of once
1143        - API extension for MIDI drivers which already supply exact time stamps
1144          for events (i.e. for offline rendering based MIDI drivers)
1145        - added checks for bad MIDI data
1147      * linuxsampler application:
1148        - show available sampler engine types on startup
1150      * general changes:
1151        - support for muting sampler channels and solo mode of the same, two new
1152          LSCP commands ("SET CHANNEL MUTE" and "SET CHANNEL SOLO") and two new
1153          fields ("MUTE" and "SOLO") for command "GET CHANNEL INFO" were
1154          introduced for this, the behavior is the same like on a mixer console
1155          (patch by Grigor Iliev, a bit adjusted). Also added configure option
1156          --enable-process-muted-channels which can be used to enable the
1157          processing of muted channels.
1158        - support for sostenuto pedal
1159        - support for monitoring the total number of active voices
1162        - fixed some memory management errors
1163        - fixed some concurrency problems that could lead to crashes when
1164          LSCP commands were executed
1165        - fixed crash when instrument loading failed previously on the same
1166          sampler channel (fixes bug #36)
1168    Version 0.3.3 (15 July 2005)
1170      * packaging changes:
1171        - fixed compilation with gcc 4.0
1173      * Gigasampler format engine:
1174        - LFO preprocessing was performed even though the respective LFO was
1175          disabled by the instrument patch (minor efficiency fix)
1176        - if period time of chosen audio device is too small (< MIN_RELEASE_TIME)
1177          for volume ramp downs in the same fragment (needed for current voice
1178          stealing implementation) then simply inform the user with a warning
1179          about possible click sounds and reduce the volume ramp down
1180          appropriately instead of cancelling the audio device connection
1182    Version 0.3.2 (24 June 2005)
1184    * packaging changes:    * packaging changes:
1185      - updated autotools build files to compile on OS X      - updated autotools build files to compile on OS X
1186        (conditional compilation of CoreMIDI and MidiShare drivers)        (conditional compilation of CoreMIDI and MidiShare drivers)
1187      - hand-crafted assembly optimization code can be disabled with      - hand-crafted assembly optimization code can be disabled with
1188        './configure --disable-asm' (definitely not recommended)        './configure --disable-asm' (definitely not recommended)
1189    * support for the gig parameters for "release velocity response"      - fixed 'make dist' rule to include all necessary files
1190      curves      - require automake (>= 1.5) for 'make -f Makefile.cvs'
1191    * fine tuning of the EGADSR envelope        (due to 'dist-bzip2' automake option)
1193      * Gigasampler format engine:
1194        - support for the gig parameters for "release velocity response" curves
1195        - fine tuning of the EGADSR envelope
1196        - volume of release triggered samples now depends on note-on velocity,
1197          note length and gig parameter "release trigger decay" instead of
1198          note-off velocity.
1199        - revised voice stealing
1200          (fixes crash and endless loop caused by voice stealing)
1201        - don't reset scale tuning on instrument or audio output device change
1202        - handle key group conflicts right at the beginning of each fragment
1203          instead of when the respective voice is actually launched
1204          (fixes undefined behavior if stolen voices belonged to a key group -
1205          this case was followed by a "killed voice survived" error message)
1206        - fixed minor issue with null/silence samples
1207          (those stole voices even though they don't need a voice at all which
1208          resulted in "voice stealing didn't work out" messages)
1209        - don't reset volume, pan, pitch and MIDI controller values on
1210          instrument or audio output device change
1212    * LSCP server:    * LSCP server:
1213      - fixed some crashs (patch by Grigor Iliev, fixes #19)      - fixed some crashes (patch by Grigor Iliev, fixes #19)
1214        - fixed LSCP event "CHANNEL_INFO" notification
1215          (e.g. did not notify on volume changes or MIDI program change events)
1217      * linuxsampler application:
1218        - added command line parameters --lscp-addr and --lscp-port to override
1219          default IP address and port of LSCP server
1221  Version 0.3.1 (24 May 2005)  Version 0.3.1 (24 May 2005)

Removed from v.620  
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