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revision 659 by schoenebeck, Thu Jun 16 21:35:30 2005 UTC revision 2947 by schoenebeck, Thu Jul 14 10:37:28 2016 UTC
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1  Version CVS HEAD (?)  Version SVN trunk (?)
2    
3      * SFZ format engine:
4        - added support for <global>, <master> and #define (patch by Alby M)
5    
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.
27    
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.
33    
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.
79        - Implemented built-in script variable "$KSP_TIMER".
80        - Implemented built-in script variable "$NKSP_REAL_TIMER".
81        - Implemented built-in script variable "$NKSP_PERF_TIMER".
82        - Implemented built-in script variable "$ENGINE_UPTIME".
83        - Implemented built-in script function "inc()".
84        - Implemented built-in script function "dec()".
85        - NKSP language fix: division expressions were evaluated too often.
86        - NKSP language fix: string concatenation operator was right
87          associative instead of left (to right).
88        - NKSP language correction: allow empty statements in entire language
89          (i.e. "if end if").
90    
91    Version 2.0.0 (15 July 2015)
92    
93      * packaging changes:
94        - fixed building with newer MinGW-w64
95        - Mac OS X: support the new dir for Core Audio SDK
96        - Mac OS X: fixed building outside source directory
97        - made sure all source files for hostplugins are included when
98          doing "make dist"
99        - removed empty directories left from the cvs to svn migration
100        - fixed compilation with gcc 4.6.1
101        - another "make dist" fix, for the LV2 plugin
102        - made --enable-pthread-testcancel default on Mac OS X
103        - minor Makefile fix for building lscpparser when build and source
104          directories are separate
105        - Mac OS X: made it possible to specify plugin installation dir to
106          configure
107        - Mac OS X: Makefile fix for the install-strip target
108        - fixed compilation with gcc 4.7
109        - fixed configure script error with old autoconf versions
110        - lsatomic.h: use gcc provided atomic functions if building with
111          gcc 4.7 and C++11
112        - modernized configure script
113        - fixed linkage error when building with
114          LDFLAGS="-Wl,--no-undefined" (#190)
115        - fixed compilation with Clang 3.2
116        - removed usage of deprecated Automake variable INCLUDES
117        - fixed building with C++11
118        - build fix: ChangeFlagRelaxed.h was missing in makefile
119        - build fix: libsndfile compiler flags were missing in some
120          makefiles
121        - fix for building with bison 3.0 (#202)
122        - Mac OS X: added temporary hack allowing to spawn gigedit as callback
123          on the process's main thread
124        - fixed build error on newer MinGW
125        - support building with older jack versions
126        - support building with spaces in vst sdk path
127        - enabled automake 'subdir-objects' option and moved external
128          source references (vst, au, asio) from makefiles to cpp files,
129          in order to get rid of warnings from automake 1.14
130    
131      * general changes:
132        - Refactoring: moved the independent code from
133          the Gigasampler format engine to base classes
134        - command line option '--profile' is currently disabled, since the
135          respective profiling code is currently broken
136        - Introduced support for optional environment variable
137          "LINUXSAMPLER_PLUGIN_DIR" which allows to override the directory
138          where the sampler shall look for instrument editor plugins
139          (patch by Luis Garrido, slightly modified).
140        - implemented Roland GS NRPN 1ArrH which allows to set volume per note
141        - implemented Roland GS NRPN 1CrrH which allows to set pan per note
142        - implemented Roland GS NRPN 1DrrH which allows to set reverb send per
143          note (in this implementation of the sampler its simply hard routed to
144          the 1st effect send of the sampler channel, no matter what the actual
145          effect type is)
146        - implemented Roland GS NRPN 1ErrH which allows to set chorus send per
147          note (in this implementation of the sampler its simply hard routed to
148          the 2nd effect send of the sampler channel, no matter what the actual
149          effect type is)
150        - implemented support for internal LADSPA effects
151        - raised limit of program change queue from 100 to 512
152          (as suggested by Alex Stone)
153        - implemented sine LFO, pulse LFO and saw LFO
154        - experimental support for per voice equalization
155        - added command line option --exec-after-init
156        - Introduced new C++ API method:
157          EngineChannel::InstrumentFileName(int index)
158          allowing to retrieve the whole list of files used for the loaded
159          instrument on an engine channel (a.k.a. part). Some GigaStudio
160          instruments for example are splitted over several files like
161          "Foo.gig", "Foo.gx01", "Foo.gx02", ...
162        - Added new C++ API method Sampler::GetGlobalMaxVoices().
163        - Added new C++ API method Sampler::GetGlobalMaxStreams().
164        - Added new C++ API method Sampler::SetGlobalMaxVoices().
165        - Added new C++ API method Sampler::SetGlobalMaxStreams().
166        - Various "const" and "restrict" optimizations.
167        - all engines: add pan CC value to instrument pan parameter before
168          applying panning, instead of using two separate pan functions in
169          series (#182)
170        - added a lock guard class for exception safe mutex handling and
171          used it everywhere appropriate
172        - Immediately apply scale tuning changes to active voices.
173        - Exposed scale tuning to C++ API (along to the already existing standard
174          SysEx way).
175        - lsatomic.h fixes: seq_cst load and store were suboptimal for x86
176          and broken for ppc64. (Seq_cst loads and stores are actually not
177          used in LS, so the bug wasn't noticable.)
178        - lsatomic.h: added ARMv7 support
179        - Added support for multiple MIDI input ports per sampler channel (and
180          added various new C++ methods for this new feature / design change, old
181          C++ API methods for managing SamplerChannel's MIDI inputs are now marked
182          as deprecated but are still there and should provide full behavior
183          backward compatibility).
184        - AbstractEngine::GSChecksum(): don't allocate memory on the stack (was
185          unsafe and caused compilation error with clang 2.x).
186        - Bugfix: only process the latest MIDI program change event.
187        - Introducing the LSCP shell, which provides convenient control of the
188          sampler from the command line by providing LSCP aware features.
189        - VirtualMidiDevice: Added support for program change.
190        - VirtualMidiDevice: Added support for bank select (MSB & LSB).
191        - VirtualMidiDevice: Added support for pitch bend.
192        - Aftertouch: extended API to explicitly handle channel pressure and
193          polyphonic key pressure events (so far polyphonic pressure was not
194          supported at all, and channel pressure was rerouted as CC128 but not
195          used so far).
196        - Added initial support for real-time instrument scripts. The script VM
197          code is shared by all sampler engine implemementations, however only the
198          gig file format currently provides support for storing instrument scripts
199          (as LinuxSampler extension to the original GigaStudio 4 format).
200    
201      * Gigasampler format engine:
202        - implemented the "round robin keyboard" dimension
203        - fixed round robin and random dimensions for cases when number of
204          dimension zones is not a power of two
205        - made round robin use a counter for each region instead of each
206          key
207        - bugfix: pitch LFO controller "internal+aftertouch" was broken
208        - bugfix: filter keyboard tracking was broken
209        - filter performance fix (an unnecessary copy was made of the
210          filter parameters in each sub fragment)
211        - handle special case when pan parameter in gig file has max or
212          min value
213        - Exclusive Groups: don't ever stop voices of the same note,
214          doesn't sound naturally with a drumkit
215        - fixed EG1 modulation when attack or release is zero
216        - Fixed support for 'aftertouch' attenuation controller.
217        - Fixed crash that happened with velocity split sounds under certain
218          conditions (see also previous commit on libgig).
219        - fixed behaviour of filter LFO
220    
221      * SFZ format engine:
222        - Initial implementation (not usable yet)
223        - added support for v2 multiple stage envelope generators
224        - added a fine-tuned v1 envelope generator instead of using the
225          one from the gig engine
226        - fixed memory leak and memory handling errors
227        - added support for trigger=first, trigger=legato and sw_previous
228        - allow non-numerical key values ("C#4" for example)
229        - "key" opcode now sets pitch_keycenter too
230        - fixed error when unloading instrument with same sample used by
231          multiple regions
232        - added some opcode aliases, like loopmode for loop_mode, to be
233          more compatible
234        - added support for trigger=release and rt_decay
235        - added support for off_mode=normal
236        - added support for random, seq_position, seq_length and volume
237        - added v1 LFO opcodes to parser (no support in engine yet)
238        - added support for amp_veltrack and amp_velcurve_N
239        - fine-tuned the default velocity curve
240        - added support for transpose
241        - fixed crash when using sw_down/up
242        - improved logic for sw_lokey/hikey/up/down/last
243        - added more v1 aliases to parser
244        - reduced memory usage for sfz data
245        - RT-safeness: avoid malloc in audio thread
246        - fixed a bug that could cause voice stealing to fail
247        - optimized sample lookup
248        - improved support for exclusive groups (group, off_by and
249          off_mode)
250        - added support for controller triggered regions (on_locc/on_hicc)
251        - added support for loop_mode=one_shot
252        - fixed playback of 16 bit wav files on big endian CPUs
253        - added support for Ogg Vorbis sample files
254        - use loop markers from sample file if loop_start and loop_end are
255          not set in sfz file
256        - implemeted filters. Filter types: lowpass, bandpass, bandreject
257          and highpass. 1, 2, 4 and 6 pole filters. Opcodes: fil_type,
258          cutoff, resonance, fil_veltrack, fil_keytrack, fil_keycenter,
259          cutoff_cc, cutoff_chanaft.
260        - bugfix: zero ampeg_sustain didn't work
261        - added support for velocity effect on amplifier envelope time
262          (ampeg_vel2attack, ampeg_vel2decay, ampeg_vel2sustain and
263          ampeg_vel2release)
264        - added support for EG hold (ampeg_hold)
265        - added support for sample offset (offset)
266        - use the newly introduced signal units model
267        - implemented opcodes lfoN_delay,
268          lfoN_freq, lfoN_pan, lfoN_cutoff, lfoN_resonance
269        - implemented opcodes ampeg_delay, ampeg_vel2delay
270          pitcheg_delay, pitcheg_start, pitcheg_attack, pitcheg_hold,
271          pitcheg_decay, pitcheg_sustain, pitcheg_release, pitcheg_vel2delay,
272          pitcheg_vel2attack, pitcheg_vel2hold, pitcheg_vel2decay,
273          pitcheg_vel2sustain, pitcheg_vel2release, pitcheg_depth
274        - implemented opcodes pitchlfo_delay, pitchlfo_freq,
275          pitchlfo_depth, fillfo_delay, fillfo_freq, fillfo_depth,
276          amplfo_delay, amplfo_freq, amplfo_depth
277        - implemented opcodes fileg_delay, fileg_start, fileg_attack,
278          fileg_hold, fileg_decay, fileg_sustain, fileg_release, fileg_vel2delay,
279          fileg_vel2attack, fileg_vel2hold, fileg_vel2decay, fileg_vel2sustain,
280          fileg_vel2release
281        - implemented opcode lfoN_wave
282        - implemented opcode pitchlfo_depthccN
283        - implemented opcodes lfoN_phase, lfoN_phase_onccX,
284          lfoN_pitch, lfoN_pitch_onccX
285        - implemented opcodes pitchlfo_fade,
286          fillfo_fade, amplfo_fade, lfoN_fade, lfoN_fade_onccX
287        - implemented opcodes fillfo_freqccN,
288          pitchlfo_freqccN, amplfo_freqccN, lfoN_freq_onccX
289        - implemented opcodes ampeg_delayccN, ampeg_startccN,
290          ampeg_attackccN, ampeg_holdccN, ampeg_decayccN, ampeg_sustainccN,
291          ampeg_releaseccN, egN_timeX_onccY, egN_levelX_onccY
292        - lfoN_* and egN_* opcodes defined in group sections
293          are now taken into account
294        - implemented curves
295        - implemented opcodes volume_onccN, volume_curveccN
296        - implemented opcode volume_smoothccN
297        - implemented opcodes fillfo_depthccN, amplfo_depthccN,
298          lfoN_volume, lfoN_volume_onccX, lfoN_volume_smoothccX,
299          lfoN_freq_smoothccX, lfoN_pitch_smoothccX, lfoN_pan_onccX,
300          lfoN_pan_smoothccX, lfoN_cutoff_onccX, lfoN_cutoff_smoothccX,
301          lfoN_resonance_onccX, lfoN_resonance_smoothccX, lfoN_delay_onccX
302        - implemented opcode end
303        - implemented opcodes egN_amplitude_onccX,
304          egN_volume, egN_volume_onccX, egN_cutoff, egN_cutoff_onccX,
305          egN_pitch, egN_pitch_onccX, egN_resonance, egN_resonance_onccX
306        - implemented opcodes xfin_lokey, xfin_hikey,
307          xfout_lokey, xfout_hikey, xf_keycurve, xfin_lovel, xfin_hivel,
308          xfout_lovel, xfout_hivel, xf_velcurve, xfin_loccN, xfin_hiccN,
309          xfout_loccN, xfout_hiccN, xf_cccurve
310        - implemented opcodes pan_onccN, pan_smoothccN,
311          pan_curveccN, egN_pan, egN_pan_curve, egN_pan_onccX,
312          egN_pan_curveccX, pitch_veltrack
313        - when failed to parse a sfz file
314          print the line number on which the error occurs
315        - use common pool of CC objects to minimize RAM usage
316        - implemented opcodes amplfo_delay_onccN,
317          amplfo_fade_onccN, fillfo_delay_onccN, fillfo_fade_onccN,
318          pitchlfo_delay_onccN, pitchlfo_fade_onccN
319        - implemented opcodes fileg_delay_onccN,
320          fileg_start_onccN, fileg_attack_onccN, fileg_hold_onccN,
321          fileg_decay_onccN, fileg_sustain_onccN, fileg_release_onccN,
322          fileg_depth_onccN, pitcheg_delay_onccN, pitcheg_start_onccN,
323          pitcheg_attack_onccN, pitcheg_hold_onccN, pitcheg_decay_onccN,
324          pitcheg_sustain_onccN, pitcheg_release_onccN, pitcheg_depth_onccN
325        - implemented automatic aliasing *ccN <-> *_onccN
326        - *lfo_freqccN wasn't working when the respective *lfo_freq
327          was not set or was set to zero
328        - lfoN_freq_onccX wasn't working when lfoN_freq
329          was not set or was set to zero
330        - implemented opcodes resonance_onccN, resonance_smoothccN,
331          resonance_curveccN, cutoff_smoothccN, cutoff_curveccN
332        - implemented opcodes fillfo_depthchanaft,
333          fillfo_freqchanaft, amplfo_depthchanaft, amplfo_freqchanaft,
334          pitchlfo_depthchanaft, pitchlfo_freqchanaft
335        - implemented opcodes pitch_onccN,
336          pitch_curveccN, pitch_smoothccN, pitch_stepccN
337        - implemented opcodes volume_stepccN, pan_stepccN,
338          cutoff_stepccN, resonance_stepccN, lfoN_freq_stepccX,
339          lfoN_volume_stepccX, lfoN_pitch_stepccX, lfoN_pan_stepccX,
340          lfoN_cutoff_stepccX, lfoN_resonance_stepccX
341        - implemented opcodes eq1_freq, eq2_freq, eq3_freq,
342          eq1_freqccN, eq2_freqccN, eq3_freqccN, eq1_bw, eq2_bw, eq3_bw,
343          eq1_bwccN, eq2_bwccN, eq3_bwccN, eq1_gain, eq2_gain, eq3_gain,
344          eq1_gainccN, eq2_gainccN, eq3_gainccN
345        - implemented opcodes delay, delay_onccN, delay_random,
346          delay_samples, delay_samples_onccN
347        - implemented opcodes egN_eq1gain, egN_eq2gain, egN_eq3gain,
348          egN_eq1gain_onccX, egN_eq2gain_onccX, egN_eq3gain_onccX, egN_eq1freq,
349          egN_eq2freq, egN_eq3freq, egN_eq1freq_onccX, egN_eq2freq_onccX,
350          egN_eq3freq_onccX, egN_eq1bw, egN_eq2bw, egN_eq3bw, egN_eq1bw_onccX,
351          egN_eq2bw_onccX, egN_eq3bw_onccX, lfoN_eq1gain, lfoN_eq2gain,
352          lfoN_eq3gain, lfoN_eq1gain_onccX, lfoN_eq2gain_onccX, lfoN_eq3gain_onccX,
353          lfoN_eq1gain_smoothccX, lfoN_eq2gain_smoothccX, lfoN_eq3gain_smoothccX,
354          lfoN_eq1gain_stepccX, lfoN_eq2gain_stepccX, lfoN_eq3gain_stepccX,
355          lfoN_eq1freq, lfoN_eq2freq, lfoN_eq3freq, lfoN_eq1freq_onccX,
356          lfoN_eq2freq_onccX, lfoN_eq3freq_onccX, lfoN_eq1freq_smoothccX,
357          lfoN_eq2freq_smoothccX, lfoN_eq3freq_smoothccX, lfoN_eq1freq_stepccX,
358          lfoN_eq2freq_stepccX, lfoN_eq3freq_stepccX, lfoN_eq1bw, lfoN_eq2bw,
359          lfoN_eq3bw, lfoN_eq1bw_onccX, lfoN_eq2bw_onccX, lfoN_eq3bw_onccX,
360          lfoN_eq1bw_smoothccX, lfoN_eq2bw_smoothccX, lfoN_eq3bw_smoothccX,
361          lfoN_eq1bw_stepccX, lfoN_eq2bw_stepccX, lfoN_eq3bw_stepccX
362        - implemented opcodes eq1_vel2freq, eq2_vel2freq,
363          eq3_vel2freq, eq1_vel2gain, eq2_vel2gain, eq3_vel2gain
364        - sfz parser: allow double spaces in sample filenames
365        - sfz parser: allow absolute paths for sample filenames
366        - use linear decay and release for filter and pitch EG
367        - bugfix: only the first amp_veltrack definition in a file was
368          used
369        - bugfix: looping was disabled if loop_start was set to 0
370        - allow regions with end=-1 to turn off other regions using the
371          group and off_by opcodes (#168)
372        - made end=0 play the whole sample
373        - fixed support for lochan and hichan opcodes (#155)
374        - fixed crash when using lochan/hichan opcodes (#187)
375        - sfz parser: allow -200 to 200 for pan_oncc opcode (#182)
376        - added FLAC support (#191)
377        - sfz parser bugfix: lines starting with whitespace were ignored
378        - added amplitude opcode
379        - added support for "#include" instruction
380          (modified patch which was originally posted by Sergey on LS mailing list)
381        - bugfix: generation of velocity curves etc should not be done
382          after each "#include", only after the main file is parsed
383        - bugfix: line numbers in error messages were wrong after "#include"
384        - added support for float and 32 bit sample files
385    
386      * SoundFont format engine:
387        - Initial implementation (not usable yet)
388        - RT-safeness: avoid malloc in audio thread
389        - fixed a bug that could cause voice stealing to fail
390        - fine-tuned amplitude EG (by switching from gig to sfz EG)
391        - initial implementation of Vibrato LFO and Modulation LFO
392        - initial implementation of cutoff filter
393        - use linear decay and release for filter and pitch EG
394    
395      * Host plugins (VST, AU, LV2, DSSI):
396        - AU bugfix: failed to destroy its audio/MIDI devices
397        - Listen to all interfaces on Mac OS X (INADDR_ANY)
398        - VST bugfix: If the host called resume() before and after
399          changing sample rate or block size, the number of channels was
400          incorrectly set to two. This caused silence in Cubase 5.
401        - save engine type (gig, sfz or sf2) in plugin state
402        - VST: when opening Fantasia, look for both 32 and 64 bit Java on
403          64 bit Windows
404        - AU: changed number of output channels from one stereo to 16
405          stereo
406        - VST: made it possible to build the VST plugin for Mac
407        - AU: link AU plugin dynamically if --disable-shared isn't
408          specified
409        - LV2 "state" extension support (patch by David Robillard)
410        - VST bugfix: instrument loading hang and crashed the host when
411          the plugin was loaded a second time (#174)
412        - plugin bugfix: instrument loading hang when the plugin was
413          loaded a second time (this time it's for Linux and Mac, previous
414          similar fix was for Windows)
415        - thread safety fixes for the instrument loading thread
416        - LV2: use the new lv2 package if present
417        - VST: try to open Fantasia automatically on Linux and Mac too (on
418          Linux, the Fantasia jar should be placed in <prefix>/share/java)
419        - VST: fixed crashes on Linux Ardour and EnergyXT
420        - DSSI bugfix: it wasn't possible to change engine type. The MIDI
421          port and audio channel routing for DSSI plugins are now visible.
422        - LV2: use urid and atom extensions instead of deprecated uri-map
423          and event
424        - LV2: lv2 package 1.0 is now required to build the LV2 plugin
425        - LV2: changed number of output channels to 16 stereo, just like
426          the VST and AU plugins
427        - LV2: fixed save/restore of SFZ state (patch by David Robillard)
428        - LV2: made LV2 plugin buildable on Windows and Mac
429        - VST: implemented retrieval and switching of programs using the
430          sampler's internal MIDI instrument mapping system
431    
432      * Instrument editor interface:
433        - Changed instrument editor plugin interface, providing additional
434          informations like the EngineChannel for which the instrument editor was
435          spawned for. This allows the instrument editors to interact more actively
436          with the sampler.
437    
438      * MIDI driver:
439        - ALSA MIDI driver supports now "NAME" device parameter, for overriding
440          the ALSA sequencer client name
441        - removed limit of maximum amount of MIDI ports per MIDI device, since
442          there is no reason for this limit
443        - MME: fixed memory handling bug found with cppcheck
444        - MME: removed compiler warning
445        - CoreMIDI: implemented driver specific port parameter "CORE_MIDI_BINDINGS",
446          which allows to retrieve the list of CoreMIDI clients / ports and to connect
447          to them a la JACK, via the usual sampler APIs
448        - CoreMIDI: added driver specific port parameter "AUTO_BIND", if enabled
449          the driver will automatically connect to other CoreMIDI clients' ports
450          (e.g. external MIDI devices being attached to the Mac)
451        - added support for MIDI note on velocity filter
452        - CoreMIDI: fixed memory deallocation error
453        - Fixed variable underflow in VirtualMidiDevice, which caused graphical
454          virtual keyboards in frontends / instrument editors being stuck.
455        - Bugfix in VirtualMidiDevice: process note on with velocity 0 as note off.
456        - Implemented missing handling of MIDI "running status".
457        - CoreMIDI fix: a MIDIPacket can contain more than one event per packet.
458        - MME bugfix: driver wasn't closed properly
459        - CoreMIDI: automatically connect to all input sources by default (driver
460          parameter "AUTO_BIND").
461        - CoreMIDI: fixed auto bind feature to CoreMIDI ports that go online
462        - CoreMIDI: fixed minor memory leak
463    
464      * audio driver:
465        - ASIO driver fixes for newer gcc versions (fix from PortAudio)
466        - JACK audio: react on sample rate changes.
467        - JACK audio: react on buffer size changes.
468        - JACK audio: jack_port_get_buffer() was cached and called outside
469          RT context.
470        - ASIO driver: removed compiler warnings
471        - CoreAudio: fixed minor error handling bug
472        - ASIO driver: be more verbose when no ASIO card could be found (fixes #203)
473        - JACK audio: return the JACK server's current sample rate as default value
474          for audio device parameter "SAMPLERATE" (fixes #166).
475    
476      * LSCP server:
477        - added support for sending MIDI CC messages via LSCP command
478          "SEND CHANNEL MIDI_DATA CC <sampler-chan> <ctrl> <val>"
479        - added LSCP command "GET AVAILABLE_EFFECTS"
480        - added LSCP command "LIST AVAILABLE_EFFECTS"
481        - added LSCP command "GET EFFECT INFO <effect-index>"
482        - added LSCP command "CREATE EFFECT_INSTANCE <effect-index>"
483        - added LSCP command
484          "CREATE EFFECT_INSTANCE <effect-system> <module> <effect-name>"
485        - added LSCP command "DESTROY EFFECT_INSTANCE <effect-instance>"
486        - added LSCP command "GET EFFECT_INSTANCES"
487        - added LSCP command "LIST EFFECT_INSTANCES"
488        - added LSCP command "GET EFFECT_INSTANCE INFO <effect-instance>"
489        - added LSCP command
490          "GET EFFECT_INSTANCE_INPUT_CONTROL INFO <effect-instance> <input-control>"
491        - added LSCP command "SET EFFECT_INSTANCE_INPUT_CONTROL VALUE
492          <effect-instance> <input-control> <value>"
493        - added LSCP command "GET SEND_EFFECT_CHAINS <audio-device>"
494        - added LSCP command "LIST SEND_EFFECT_CHAINS <audio-device>"
495        - added LSCP command "ADD SEND_EFFECT_CHAIN <audio-device>"
496        - added LSCP command
497          "REMOVE SEND_EFFECT_CHAIN <audio-device> <effect-chain>"
498        - added LSCP command
499          "GET SEND_EFFECT_CHAIN INFO <audio-device> <effect-chain>"
500        - added LSCP command "APPEND SEND_EFFECT_CHAIN EFFECT <audio-device>
501          <effect-chain> <effect-instance>"
502        - added LSCP command "INSERT SEND_EFFECT_CHAIN EFFECT <audio-device>
503          <effect-chain> <effect-chain-pos> <effect-instance>"
504        - added LSCP command "REMOVE SEND_EFFECT_CHAIN EFFECT <audio-device>
505          <effect-chain> <chain-pos>"
506        - added LSCP command "SET FX_SEND EFFECT <sampler_channel>
507          <fx_send_id> <effect_chain> <chain_pos>"
508        - added LSCP command "REMOVE FX_SEND EFFECT <sampler_channel> <fx_send_id>"
509        - added LSCP commands "SUBSCRIBE EFFECT_INSTANCE_COUNT",
510          "SUBSCRIBE EFFECT_INSTANCE_INFO", "SUBSCRIBE SEND_EFFECT_CHAIN_COUNT",
511          "SUBSCRIBE SEND_EFFECT_CHAIN_INFO"
512        - provide comprehensive error messages on LSCP syntax errors
513          (suggesting expected next non-terminal symbols)
514    
515      * LSCP shell:
516        - Added support for auto correction of obvious and trivial syntax mistakes.
517        - Added support for auto completion by tab key.
518        - Show currently available auto completion while typing.
519        - Added support for browsing command history with up / down keys.
520        - Show all possible next symbols immediately right to the current command
521          line while typing (no double tab required for this feature, as it would
522          be the case in other shells).
523        - Added support for moving cursor left/right with arrow keys.
524        - Added support for built-in LSCP reference documentation, which will
525          automatically show the relevant LSCP reference section on screen as soon
526          as one specific LSCP command was detected while typing on the command
527          line.
528    
529      * Real-time instrument scripts:
530        - Implemented built-in script array variable %CC.
531        - Implemented built-in script int variable $CC_NUM.
532        - Implemented built-in script int variable $EVENT_NOTE.
533        - Implemented built-in script int variable $EVENT_VELOCITY.
534        - Implemented built-in script constant variable $VCC_MONO_AT.
535        - Implemented built-in script constant variable $VCC_PITCH_BEND.
536        - Implemented execution of script event handler "init".
537        - Implemented execution of script event handler "controller".
538        - Implemented execution of script event handler "note".
539        - Implemented execution of script event handler "release".
540        - Implemented built-in script function "play_note()" (only two of the
541          max. four function arguments are currently implemented yet though).
542        - Implemented built-in script int variable $EVENT_ID.
543        - Implemented built-in script function "ignore_event()"
544        - Implemented built-in script function "ignore_controller()" (may have one
545          or no argument).
546        - Implemented built-in script function "set_controller()".
547        - Added extended script VM for the Gigasampler/GigaStudio format sampler
548          engine, which extends the general instrument script VM with Giga format
549          specific variables and functions.
550        - Giga format scripts: added built-in script int constant variables
551          $GIG_DIM_CHANNEL, $GIG_DIM_LAYER, $GIG_DIM_VELOCITY, $GIG_DIM_AFTERTOUCH,
552          $GIG_DIM_RELEASE, $GIG_DIM_KEYBOARD, $GIG_DIM_ROUNDROBIN, $GIG_DIM_RANDOM,
553          $GIG_DIM_SMARTMIDI, $GIG_DIM_ROUNDROBINKEY, $GIG_DIM_MODWHEEL,
554          $GIG_DIM_BREATH, $GIG_DIM_FOOT, $GIG_DIM_PORTAMENTOTIME, $GIG_DIM_EFFECT1,
555          $GIG_DIM_EFFECT2, $GIG_DIM_GENPURPOSE1, $GIG_DIM_GENPURPOSE2,
556          $GIG_DIM_GENPURPOSE3, $GIG_DIM_GENPURPOSE4, $GIG_DIM_SUSTAIN,
557          $GIG_DIM_PORTAMENTO, $GIG_DIM_SOSTENUTO, $GIG_DIM_SOFT,
558          $GIG_DIM_GENPURPOSE5, $GIG_DIM_GENPURPOSE6, $GIG_DIM_GENPURPOSE7,
559          $GIG_DIM_GENPURPOSE8, $GIG_DIM_EFFECT1DEPTH, $GIG_DIM_EFFECT2DEPTH,
560          $GIG_DIM_EFFECT3DEPTH, $GIG_DIM_EFFECT4DEPTH, $GIG_DIM_EFFECT5DEPTH.
561        - Giga format scripts: Implemented built-in script function
562          "gig_set_dim_zone(event_id, dimension, zone)".
563        - Implemented built-in script int array variable $KEY_DOWN.
564        - Implemented built-in script function "abs()".
565        - Implemented built-in script function "random()".
566        - Implemented built-in script function "num_elements()".
567        - Implemented built-in script function "note_off()".
568        - Implemented built-in script function "set_event_mark()".
569        - Implemented built-in script function "delete_event_mark()".
570        - Implemented built-in script function "by_marks()".
571        - Added built-in script int const variables $MARK_1 to $MARK_28.
572        - Built-in script functions "ignore_event()", "note_off()" and
573          "gig_set_dim_zone()" now also accept an array of event IDs as argument
574          (i.e. return value of new script function "by_marks()").
575        - Pass/preserve polyphonic variable data from respective "note" event
576          handler to "release" event handler.
577    
578      * Bug fixes:
579        - Fixed crash which may occur when MIDI key + transpose is out of range
580        - minor valgrind fixes
581        - fixed crash which occurred when changing an already deployed sampler
582          channel to a different engine type
583        - fixed crash when deleting a sampler channel or changing engine
584          type while an instrument load was in progress
585        - bugfix: playing a note while changing the instrument could cause
586          a crash, or give "Handing back unknown region" error messages
587        - bugfix: calling SET VOICES (which Fantasia does on start and
588          refresh) could cause instruments to be unloaded
589        - Mac OS X: fixed name collision of enum in EffectControl and
590          wrong name of destructor in AudioOutputDeviceCoreAudio.cpp
591        - Mac OS X: fixed hanging threads
592        - Windows: disabled the previous thread fix on non-Mac systems, as
593          it caused hanging threads on Windows
594        - Fixed possible crashes due to corrupted MIDI/audio device list
595          after MIDI/audio device creation failure
596        - When creating MIDI instrument map entries with "PERSISTENT" type, the
597          instruments were uselessly precached with zero samples, however it still
598          took the full preloading time and on 1st program change the respective
599          instrument was completely reloaded again.
600        - fixed handling of rapid bank select and program change messages
601          sent to the same sampler channel (patch from the Open Octave
602          project, slightly adjusted)
603        - fixed crash when trying to create an effect instance with controls
604          which min and/or max values depend on the sample rate
605        - fixed bug #162
606        - bugfix: LADSPA_PATH was not evaluated correctly when containing
607          multiple paths (#165)
608        - thread safety fixes for the instrument loading thread
609        - bugfix: instrument loading crashed for sfz and sf2 in Ardour
610          (#176)
611        - more thread safety fixes for the instrument loading thread
612        - sfz/sf2 engine: fixed crash when using small audio fragment size
613        - Mac OS X: fixed crash when unloading plugin on 10.7 and later
614        - Mac OS X: fixed process hang when unloading 32-bit plugin (bug
615          introduced in previous fix)
616        - fixed crash when a channel received a program change while
617          playing a note in a key group
618        - fixed erroneous error message piping in VoiceBase.h
619          (labelled "Disk stream not available in time")
620        - Update effects on sample rate & period size changes (to avoid
621          crashes and noise on such transitions).
622        - ignore missing LADSPA paths without ignoring valid LADSPA paths
623          (fixes #208)
624        - Fixed bug in LSCP grammar definition which caused a statement like
625          "GET SERVER INFOasdf\n" to be accepted as valid statement (was so far
626          practically irrelevant, however it caused problems with the new LSCP
627          shell's auto completion feature).
628        - Fixed MIDI program change messages being ignored if quickly executed
629          after each other (fixes #231).
630    
631    Version 1.0.0 (31 July 2009)
632    
633      * packaging changes:
634        - autoconf bugfix: the PKG_CONFIG variable wasn't initialized properly,
635          causing e.g. the libgig test to fail when
636          "./configure --disable-jack-driver" was used
637          (patch by Alexis Ballier)
638        - fixed compilation with gcc 4.3
639        - fixes for building on OS X (thanks to Ebrahim Mayat for testing)
640        - fixed configure so it detects x86_64 (#107)
641        - fixes for building with newer MinGW versions
642        - fix for building with bison 2.4 (#111)
643        - fixed building with libgig installed in a non-standard directory
644        - minor fix in configure for mmsystem.h detection on MinGW
645        - Windows: look for editor plugins and Fantasia using base
646          directory of liblinuxsampler dll (look in the same directory and one
647          directory above)
648        - configure script fix: removed unconditional use of SSE
649        - fixed building with sqlite installed in a non-standard directory
650        - when cross-compiling, don't try to create instruments.db
651        - fix for new mingw-w64 version, which has usleep
652    
653      * general changes:
654        - bugfix: on some POSIX systems instrument editor plugins refused to
655          load as we used a non-portable Linux specific struct field
656          (fixes bug #70, patch by Ronald Baljeu)
657        - fixed endless loop which occured when loading an instrument editor
658          plugin DLL on Windows systems failed
659        - fixed memory leaks that occurred when liblinuxsampler was unloaded
660        - optimized the SynchronizedConfig class so it doesn't wait
661          unnecessarily long after an update
662        - added support for notifying instrument editors on note-on / note-off
663          events (e.g. to highlight the pressed keys on the virtual keyboard
664          of gigedit)
665        - added support for triggering notes by instrument editors (see above)
666        - be verbose on DLL load errors (on Linux)
667        - fixed di-harmonic triangle LFO implementation (this LFO implementation
668          is only used by very few systems, most pick the int math
669          implementation, which is usually faster)
670        - fixes for audio drivers with varying buffer sizes
671        - experimental support for running LinuxSampler as a DSSI, LV2 and
672          VST plugin
673        - notification events for stream/voice count statistics are now sent
674          only when there are actual changes
675        - added memory ordering constraints to improve stability on
676          multi-core and multi-cpu systems
677        - maximum voices and disk streams can now be altered at runtime
678        - fixed CPU feature detection on x86_64 (maybe fixes #108)
679        - automatic stacktrace mechanism is now turned off by default and can
680          be switched on by command line option "--stacktrace" (the automatic
681          stacktrace mechanism seems to be broken on most systems at the moment)
682        - C++ API method InstrumentManager::LaunchInstrumentEditor() now returns
683          a pointer to the launched InstrumentEditor object
684        - added optional 3rd party user data parameter for following
685          liblinuxsampler C++ API methods: InstrumentEditor::Main(),
686          InstrumentEditor::Launch(),
687          InstrumentManager::LaunchInstrumentEditor()
688        - theoretical fix: made SynchronizedConfig follow C++0x memory
689          model more strictly
690        - fixes for using large audio device buffers
691        - Windows: add the installation directory to the DLL search path
692          when loading an editor plugin (solves problems with VST and
693          gigedit on systems with other GTK versions installed)
694        - updated linuxsampler man page
695    
696      * audio driver:
697        - removed the nonsense audio channel constraint (which was hard coded to
698          max. 100 audio channels) for most audio drivers
699        - JACK audio driver did not offer a device parameter "SAMPLERATE" as
700          opposed to the LSCP specs
701        - bugfix: the SAMPLERATE parameter of some drivers (e.g. JACK)
702          reflected the wrong value
703        - fixed a memory management bug in ASIO driver
704        - Makefile fix: JACK_CFLAGS wasn't used
705        - JACK: use jack_client_open instead of the deprecated
706          jack_client_new
707        - added (experimental) CoreAudio driver
708        - applied old fixes to the ASIO driver that were included in the
709          previous binary release but accidentally never committed to CVS
710          (fixes #117)
711        - fixes for ASIO on mingw-w64 (iasio wrapper is not needed on
712          win64)
713        - VST: added support for sample rate and buffer size changes
714        - VST: close editor (Fantasia) when the VST is removed
715        - VST: avoid opening Fantasia more than once for each VST instance
716        - VST: export main function as "main" on Linux too (fix for
717          energyXT)
718        - VST: changed number of output channels from one stereo to 16
719          stereo
720        - added channel routing, fxsends and midi maps to the settings
721          stored in the plugin state
722        - performance optimization of AudioChannel::MixTo() and
723          AudioChannel::CopyTo() methods using GCC vector exensions
724          (if available)
725        - ASIO fixes: avoid initializing the device twice, avoid throwing
726          exception when getting parameters from a disconnected device
727    
728      * MIDI driver:
729        - added JACK MIDI driver
730        - dispatch bank select as ordinary CC as well, the user might seriously
731          want to (mis)use it for some purpose ("fixed" in all current MIDI
732          input drivers: ALSA, CoreMIDI, JACK, MidiShare, MME)
733        - bugfix: pitch bend wasn't working with JackMidi, VST, LV2, MME,
734          CoreMidi or AU
735        - fixed mingw-w64 compilation error in MME driver
736        - made program change handling in MIDI thread real-time safe by
737          moving the logic to a non-RT thread
738        - fixed minor memory leak in ALSA driver
739    
740      * instruments database:
741        - avoid time consuming samples scanning when adding instruments
742          to the instruments database
743        - added support for handling lost files in the instruments database
744        - Implemented option for adding instruments in separate directories
745          in the instruments database
746          (patch by Chris Cherrett & Andrew Williams, a bit adjusted)
747        - work-around for missing fnmatch function on Windows to make
748          instrument database compilable
749        - added instrument database support on Windows
750          works with both standalone mode and VST plugin.
751          the instruments DB file is located in
752          %USERPROFILE%\.linuxsampler\instruments.db which allows different
753          databases for each windows user
754          if no DB is present it automatically creates the .linuxsampler subdir
755          and then creates an empty DB
756        - fixed recursive import, which was broken on Windows
757    
758      * Gigasampler format engine:
759        - fixed a memory leak that could happen when a channel was deleted
760          while notes were playing
761        - made it possible to load an instrument even if the audio thread
762          isn't running
763        - added partial support for the "Controller Triggered" MIDI rule,
764          enough for piano gigs with pedal noise samples
765        - minor fix: only mark FX sends as being modified if really the
766          respective FX send MIDI controller was used
767        - added support for GM global device volume SysEx message
768          (can be selected at compile time to either apply globally to the
769          whole sampler [default] or only to the sampler channels that are
770          connected to the respective MIDI input port the SysEx message arrived
771          on)
772        - bugfix: notes triggered at position 0 in the audio buffer were
773          sometimes wrongly killed in the same buffer, causing no sound to
774          be played
775        - added support for chromatic / drumkit mode Roland GS Sysex message
776          which is usally used to switch a part between chromatic sounds and
777          drumkit sounds (as opposed to their common default setting of MIDI
778          part 10 being a drumkit part and all other ones chromatic parts), in
779          LS however one can switch between the first 16 MIDI instrument maps
780          defined for the sampler
781        - made it possible to create multiple sample channels even if the
782          audio thread isn't running
783        - fixed crash when removing channel with active voices (#116)
784        - bugfix: on sample reference changes (instrument editor), only
785          un-cache the respective sample if it's really not used by any
786          sampler engine anymore
787        - re-cache samples in case they were changed by an instrument editor,
788          e.g. when a sample was added while playing (#82)
789        - fixed hanging notes which occured when note-off event had the exact
790          same time stamp as the voice's note-on event and occured both in the
791          same audio fragment cycle (fixes bug #112)
792        - added support for the "fine tune" and "pitch bend range"
793          instrument-level gig parameters
794        - fixed minor artifacts in pitch bend handling
795        - added support for GS Reset SysEx message
796        - allow gig files to use unlimited downward pitch shifting
797        - added a limit check for upward pitch shifting
798        - bugfix: sometimes, when playing a note twice fast, the second
799          note was silent
800        - fixed crash happening when a pitch bend event arrived at the
801          same time a new instrument was loading
802    
803      * LSCP server:
804        - added new LSCP event "CHANNEL_MIDI" which can be used by frontends to
805          react on MIDI data arriving on certain sampler channels (so far only
806          Note-On and Note-Off events are sent via this LSCP event)
807        - added new LSCP event "DEVICE_MIDI" which can be used by frontends to
808          react on MIDI data arriving on certain MIDI input devices (so far only
809          Note-On and Note-Off events are sent via this LSCP event)
810        - added new LSCP commands: FIND LOST DB_INSTRUMENT_FILES and
811          SET DB_INSTRUMENT FILE_PATH
812        - added new LSCP command: SEND CHANNEL MIDI_DATA which can be used by
813          frontends to send MIDI messages to specific sampler channel
814        - added two additional fields to GET FILE INSTRUMENT INFO command -
815          KEY_BINDINGS and KEYSWITCH_BINDINGS
816        - bugfix: the bank number provided by MIDI_INSTRUMENT_INFO notifications
817          was incorrect
818        - Optimized the retrieval of the MIDI instrument mappings
819        - added new LSCP command "SET VOICES" to globally alter the maximum
820          amount of voices, added new LSCP event "GLOBAL_INFO:VOICES" which will
821          be triggered respectively
822        - added new LSCP command "SET STREAMS" to globally alter the maximum
823          amount of disk streams, added new LSCP event "GLOBAL_INFO:STREAMS"
824          which will be triggered respectively
825        - bugfix: retry if "select" returns EINTR (this fixes a crash when
826          a gigedit file dialog is opened)
827        - close all connections when LSCPServer is deleted
828        - hard close of all sockets on exit
829        - bugfix: SET CHANNEL MIDI_INPUT_TYPE didn't work with the MME
830          driver
831    
832      * Bug fixes:
833        - fixed a crash which occurs when removing a sampler channel waiting
834          to start instrument loading after another channel
835        - fixed a crash which occurs when removing a sampler channel with
836          instrument loading in progress (bug #113)
837        - fixed termination caused by uncaught exception when adding MIDI
838          instrument with PERSISTENT load mode
839        - fixed possible iterator invalidations when resetting the sampler
840        - fixed memory leaks when issuing the following LSCP commands:
841          GET AUDIO_OUTPUT_DRIVER INFO
842          GET AUDIO_OUTPUT_DRIVER_PARAMETER INFO
843          GET MIDI_INPUT_DRIVER INFO
844          GET MIDI_INPUT_DRIVER_PARAMETER INFO
845        - fixed possible compilation error when sqlite is not present
846        - fixed orphaned pointers when setting maximum voices limit (bug #118)
847        - fixed crash when changing the audio output device of a sampler
848          channel with loaded instrument and start playing notes
849        - fixed endless loop in Engine::SuspendAll() (bug #120)
850        - fixed a low-level atomic load function that was broken on 64-bit
851          PowerPC, which probably could cause crashes on that platform
852        - fixed a memory management error which could cause a crash when a
853          plugin was unloaded
854        - bugfix: two private structs had the same name, which could cause
855          problems if the linker chose the wrong constructor
856        - fixed low-level ConditionServer usage bug that caused lockups on
857          Windows
858    
859    
860    Version 0.5.1 (6 December 2007)
861    
862      * packaging changes:
863        - added autoconf checks for pthread library
864        - added autoconf check for pthread bug found on certain NPTL-enabled
865          glibc versions (see Gentoo bug report #194076)
866        - added autoconf checks for MS Windows
867    
868      * general changes:
869        - bugfix: the thread used by an editor plugin didn't die when the
870          editor closed
871        - bugfix: Ringbuffer.h: fill_write_space_with_null() did not zero
872          out all the space. operator--() did not apply size_mask after
873          decrementing the read_ptr. DEFAULT_WRAP_ELEMENTS set to 0 in
874          order to avoid problems with the _NonVolatileReader functions.
875        - bugfix: Stream.h: added a missing divide by BytesPerSample in
876          GetWriteSpace(). Since this function is currently only used in
877          the stream's qsort() compare function, it didn't trigger any
878          bugs.
879        - Resampler.h, Synthesizer.h: cubic interpolation now works in
880          24bit mode too. Faster method to read 24bit words on little
881          endian machines (x86): replaced 3 byte reads + shifts with a 1
882          unaligned 32bit read and shift
883        - experimental support for MS Windows (MIDI input via MME, AUDIO
884          output via ASIO)
885        - made handling of SIGINT signal (Ctrl-C) a bit more robust
886        - support for monitoring the total number of active disk streams
887          (new LSCP commands: GET TOTAL_STREAM_COUNT,
888          SUBSCRIBE TOTAL_STREAM_COUNT, UNSUBSCRIBE TOTAL_STREAM_COUNT)
889    
890      * AUDIO driver:
891        - added Windows ASIO low latency audio driver
892    
893      * MIDI driver:
894        - added MME Windows MIDI driver
895    
896      * LSCP server:
897        - added support for Windows style path / filenames, however with
898          forward slash path separators instead of backslash
899          (i.e. "C:/foo/bar.gig")
900        - allow naughty liblscp to send non-string device parameters within
901          apostrophes as well
902        - added new LSCP commands: "GET FILE INSTRUMENTS <file>",
903          "LIST FILE INSTRUMENTS <file>" and
904          "GET FILE INSTRUMENT INFO <file> <index>" for retrieving informations
905          about an arbitrary instrument file on the system where the sampler is
906          running on
907    
908    Version 0.5.0 (15 October 2007)
909    
910      * packaging changes:
911        - config.h is not going to be installed along with liblinuxsampler's
912          API header files anymore
913        - only the API relevant header (and source) files will be exported to
914          the Doxygen API documentation (explicitly listed in Doxyfile.in)
915        - added completely new XCode project files for Mac OSX which is now
916          capable to execute our autoconf environment, thus no need anymore
917          to maintain the compile time configuration file (osx/version.h) for
918          OSX manually (patch by Toshi Nagata)
919        - fixed buggy boolean --enable-foo / --disable-foo configure script
920          parameters
921        - global.h now only covers global definitions that are needed for the
922          C++ API header files, all implementation internal global definitions
923          are now in global_private.h
924        - atomic.h is not exposed to the C++ API anymore
925        - no need to include config.h anymore for using LS's API header files
926        - fixed warnings in API doc generation
927    
928      * general changes:
929        - replaced the old, confusing MIDI program change mechanism by a
930          flexible MIDI instrument mapper which allows to map arbitrary
931          (MIDI bank, MIDI program) pairs with arbitrary
932          (engine type, instrument file, file index) triplets which will be
933          loaded on the respective channel when such MIDI program change
934          messages arrive, beside that, each entry allows to define a life-time
935          strategy for the instrument, so the user can define whether the
936          instrument should i.e. be permanently loaded (to be able to switch
937          quickly among sounds) or i.e. loaded just on demand when the
938          respective program change arrives (to safe RAM space), as well as a
939          global volume factor for each entry, so the user can adjust the volume
940          dynamic of his mapped instrument collection without having to modify
941          the instrument files, also one can manage arbitrary amount of such
942          MIDI instrument maps and assign each sampler channel individually
943          a certain map, so that i.e. separation of normal instruments and
944          drumkits is possible
945        - new notification events for tracking changes to audio/MIDI devices,
946          MIDI instrument maps, MIDI instruments, FX sends, global volume.
947        - sampler was limited to load max. 200 instruments in the background
948          due to a constant size RingBuffer FIFO which is now replaced by a
949          dynamic (unlimited) size std::list FIFO
950        - added FX sends, these allow to route audio signals to arbitrary audio
951          output channels for being processed by external effect processors
952          (i.e. jack-rack), the send levels are controllable via arbitrary MIDI
953          controllers
954        - global (sampler wide) volume can now be controlled at runtime
955        - Implemented new, improved notification system
956        - fixed compilation errors regarding OSX
957          (patch by Toshi Nagata)
958        - implemented instruments database
959        - added support for escape sequences to the instruments database
960        - added highly experimental support for on-the-fly instrument editing
961          within the sampler's process (by using instrument editor plugins),
962          you'll notice the new "Registered instrument editors:" message on
963          startup, added a new LSCP command:
964          "EDIT CHANNEL INSTRUMENT <sampler-channel>"
965          to spawn a matching instrument editor for the instrument on the
966          given sampler channel, the plugin path can be overridden at compile
967          time with ./configure --enable-plugin-dir=/some/dir
968        - added experimental code for synchronizing instrument editors hosted
969          in the sampler's process to safely edit instruments while playing
970          without a crash (hopefully) by either suspending single regions
971          wherever possible or if unavoidable whole engine(s)
972        - fixed several issues in fundamental "Thread" class: set scheduling
973          policy and priority on thread level, set a minimum stack size for
974          thread (TODO: a reasonable value yet to be tested), bugfix: non-RT
975          threads simply inherited properties of starting thread instead of
976          setting their own policy and priority
977        - minor fix in our automatic stack trace mechanism on crashes, the
978          main process did not wait for the stack trace process to finish
979          its output
980        - fixed some minor memory leaks
981        - reenabled assembly features support, at the moment only for
982          enabling a fast denormal FPU mode (x86 platforms supporting SSE2)
983        - minor assembly fix in x86 features detection (don't use the PIC
984          register, to avoid relocations in the text segment at runtime)
985        - POSIX callback functions of Thread.h are hidden
986    
987      * MIDI driver:
988        - dispatch bank select (MSB and LSB) messages
989    
990      * audio driver:
991        - the ALSA audio output driver parameters now reflect the correct
992          parameter value ranges for the respective selected sound card
993          (patch by Till Wimmer, a bit fixed and extended)
994    
995      * Gigasampler format engine:
996        - if a filter is used and EG2 finishes before EG1, let the voice
997          die when EG2 has finished (this fixes a problem with clicks and
998          voice starvation for some gigs)
999        - playback is no longer disabled during instrument loading
1000        - all notes playing on a channel that changes its instrument keep
1001          playing with the old instrument until they get a note off
1002          command
1003        - EG fix: a release value of zero could cause noises or crash
1004        - handle MIDI coarse tuning messages (MIDI RPN #0 MSB #2 LSB)
1005        - EG fine tuning: when attack is zero the EG starts at a level
1006          above max sustain level, which means that there is a decay phase
1007          even if sustain is 100%
1008        - more EG fixes: the level could sometimes go below zero and cause
1009          noises or crashes
1010        - minor fix of EGDecay (patch by Toshi Nagata)
1011        - fixed compiler error when --enable-override-filter-type was
1012          supplied to the configure script (fixes #46)
1013        - disk thread: queue sizes are now proportional to CONFIG_MAX_STREAMS
1014          instead of a fix value
1015        - behavior fix: on MIDI CC# 65 (portamento on / off), 126 (mono mode),
1016          127 (solo mode) only kill voices if the respective mode really
1017          changed
1018    
1019      * LSCP server:
1020        - fixed compile time error for old Bison versions
1021          (i.e. v1.28 found on MacOS 10.4, patch by Toshi Nagata)
1022        - parser now supports extended ASCII character set
1023          (up to ASCII code 255, i.e. includes now umlauts and accents)
1024        - filename arguments in LSCP commands now allow to use escape
1025          sequences, that is directly literal as one of: \', \", \\, \n, \r,
1026          \f, \t, \v, or as octal ASCII code value like \132, or as hex ASCII
1027          code value like \xf2) (fixes bug #24)
1028        - the following LSCP commands now also support escape sequences for at
1029          least one of their text-based parameters (i.e. name, description):
1030          "ADD MIDI_INSTRUMENT_MAP", "MAP MIDI_INSTRUMENT",
1031          "SET MIDI_INSTRUMENT_MAP NAME", "SET FX_SEND NAME", "CREATE FX_SEND",
1032          "SET DB_INSTRUMENT_DIRECTORY NAME",
1033          "SET DB_INSTRUMENT_DIRECTORY DESCRIPTION", "SET DB_INSTRUMENT NAME",
1034          "SET DB_INSTRUMENT DESCRIPTION", "FIND DB_INSTRUMENTS",
1035          "FIND DB_INSTRUMENT_DIRECTORIES"
1036        - returns verbose syntax errors (line and column where syntax error
1037          occured, the unexpected character and the actually expected, possible
1038          character(s), the latter only if less than 5 possibilities)
1039        - made sure that LSCP syntax is not affected by gigedit locale
1040          settings
1041        - bugfix regarding strings parameter lists: all comma separated lists
1042          of strings were treated as being one string containing commas
1043          (fixes #57)
1044    
1045      * Bug fixes:
1046        - fixed crash occurring on certain LSCP scripts (Bug 39)
1047        - another thread safety fix for lscp "load engine" and "set
1048          channel audio output device"
1049        - fixed a crash which occurs when reassigning the same engine
1050          on a sampler channel with connected MIDI device
1051        - fixed a crash which occurs when changing the number of ports of a MIDI
1052          device connected to a sampler channel to number less then or equal
1053          to the index of the port to which the sampler channel is connected.
1054        - The previous bindings were not been disconnected when altering
1055          the ALSA_SEQ_BINDINGS parameter. Introduced a NONE keyword for
1056          unsubscribing from all bindings (e.g. ALSA_SEQ_BINDINGS=NONE).
1057        - The active stream/voice count statistic was incorrect.
1058        - notification events were not been sent for some sampler
1059          channel changes
1060        - added default min and max values to restrict the number of allowed
1061          audio output channels and MIDI input ports
1062        - the connection to the PCM interface is now closed when destroying
1063          an audio output device
1064        - files with slash in their path or filename could not be loaded
1065    
1066      * test cases:
1067        - updated and fixed (haven't been touched in a while)
1068    
1069    Version 0.4.0 (24 November 2006)
1070    
1071      * packaging changes:
1072        - changed deprecated copyright attribute to license; added ldconfig
1073          to post-(un)install steps; added devel package for liblinuxsampler;
1074          to linuxsampler.spec (RPM)
1075        - install necessary development header files for allowing 3rd party
1076          applications to link against liblinuxsampler
1077        - liblinuxsampler's API documentation can be generated with 'make docs'
1078          (Doxygen required)
1079        - added benchmark to automatically detect the best triangle LFO
1080          implementation (currently either an integer math solution or a
1081          di-harmonic approximation), automatic detection can be overriden
1082          with --enable-signed-triang-algo=x and --enable-unsigned-triang-algo=x
1083          configure script argument though (mandatory for cross-compilation)
1084        - do not automatically pick optimized gcc flags if the user already
1085          provided some on his own (as CXXFLAGS)
1086        - added compile time option to disable processing of All-Notes-Off MIDI
1087          messages
1088        - added compile time options to allow disabling the various audio and
1089          MIDI drivers
1090        - fixed automatic GCC CPU switch detection on PPC
1091          (patch by Ebrahim Mayat)
1092    
1093      * Gigasampler format engine:
1094        - extensive synthesis optimization
1095          (reimplementation of EGs and LFO(s), removed synthesis parameter
1096          prerendering and the synthesis parameter matrix in general, splitting
1097          each audio fragment into subfragments now where each subfragment uses
1098          constant pitch and filter coefficients. The volume coefficient is
1099          linearly interpolated inside a subfragment, unless
1100          --disable-interpolate-volume is set.)
1101        - fine tuning of the EG modulation parameters
1102        - improved filter cutoff calculation by adding support for the
1103          following gig parameters: Cutoff freq (used when no cutoff
1104          controller is defined), Control invert, Minimum cutoff, Velocity
1105          curve and Velocity range. The keyboard tracking now scales
1106          cutoff frequency instead of resonance.
1107        - added support for gig parameter Resonance.
1108        - fixed bug in sysex handling (patch by Juan Linietsky)
1109        - added global volume attenuation of -9 dB (0.35f) to prevent clipping
1110          which can be overridden with --enable-global-attenuation
1111        - EG fixes: made the length of "attack hold" stage more
1112          accurate. Release stage can now start before attack stage
1113          ends. Cancel release didn't work when sustain was zero. Attack
1114          time now has a minimal value to prevent clicks.
1115        - fixed pitch changes larger than one octave
1116        - fixed EG3 (pitch envelope) synthesis which was neutral all the time
1117        - implemented portamento mode and solo mode (a.k.a 'mono mode'):
1118          all modes can be altered via standard GM messages, that is CC5 for
1119          altering portamento time, CC65 for enabling / disabling portamento
1120          mode, CC126 for enabling solo mode and CC127 for disabling solo mode
1121        - fine tuning of the curves for volume (CC7), pan (CC10 and gig
1122          parameter) and crossfade
1123        - added support for the "attenuation controller threshold" gig
1124          parameter
1125        - added smoothing of volume changes caused by control change
1126          messages
1127        - sample loop parameters are now taken from the DimensionRegion
1128          instead of the wave chunk
1129        - fixed keyswitching for v3 gigs with a number of keyswitch splits
1130          not equal to a power of two
1131        - reimplementation of the filter algorithm. The new filter is more
1132          accurate and supports all gig filter types, including bandreject
1133          and lowpass turbo.
1134        - real support for 24 bit samples - samples are not truncated to
1135          16 bits anymore
1136        - support for aftertouch (channel pressure, not polyphonic
1137          aftertouch)
1138        - LFO1 behaviour fixed (dampening from max volume instead of
1139          amplifying from 0)
1140    
1141      * LSCP server:
1142        - fixed application exit on broken pipe error (fixes bug #20)
1143        - fixed the notification messages delay due to lack of
1144          network activity (fixes bug #26)
1145        - fixed parser bug which occured on space(s) within device parameters
1146          (e.g. "SET AUDIO_OUTPUT_CHANNEL_PARAMETER 0 0 SOMEPARAM='foo bar'")
1147    
1148      * audio driver:
1149        - added aRts audio output driver (by no means RT safe)
1150    
1151      * MIDI driver:
1152        - fixed legacy sysex code which caused dispatching of MIDI SysEx
1153          messages several times instead of once
1154        - API extension for MIDI drivers which already supply exact time stamps
1155          for events (i.e. for offline rendering based MIDI drivers)
1156        - added checks for bad MIDI data
1157    
1158      * linuxsampler application:
1159        - show available sampler engine types on startup
1160    
1161      * general changes:
1162        - support for muting sampler channels and solo mode of the same, two new
1163          LSCP commands ("SET CHANNEL MUTE" and "SET CHANNEL SOLO") and two new
1164          fields ("MUTE" and "SOLO") for command "GET CHANNEL INFO" were
1165          introduced for this, the behavior is the same like on a mixer console
1166          (patch by Grigor Iliev, a bit adjusted). Also added configure option
1167          --enable-process-muted-channels which can be used to enable the
1168          processing of muted channels.
1169        - support for sostenuto pedal
1170        - support for monitoring the total number of active voices
1171          (new LSCP commands: GET TOTAL_VOICE_COUNT, GET TOTAL_VOICE_COUNT_MAX,
1172          SUBSCRIBE TOTAL_VOICE_COUNT, UNSUBSCRIBE TOTAL_VOICE_COUNT)
1173        - fixed some memory management errors
1174        - fixed some concurrency problems that could lead to crashes when
1175          LSCP commands were executed
1176        - fixed crash when instrument loading failed previously on the same
1177          sampler channel (fixes bug #36)
1178    
1179    Version 0.3.3 (15 July 2005)
1180    
1181      * packaging changes:
1182        - fixed compilation with gcc 4.0
1183    
1184      * Gigasampler format engine:
1185        - LFO preprocessing was performed even though the respective LFO was
1186          disabled by the instrument patch (minor efficiency fix)
1187        - if period time of chosen audio device is too small (< MIN_RELEASE_TIME)
1188          for volume ramp downs in the same fragment (needed for current voice
1189          stealing implementation) then simply inform the user with a warning
1190          about possible click sounds and reduce the volume ramp down
1191          appropriately instead of cancelling the audio device connection
1192    
1193    Version 0.3.2 (24 June 2005)
1194    
1195    * packaging changes:    * packaging changes:
1196      - updated autotools build files to compile on OS X      - updated autotools build files to compile on OS X
# Line 15  Version CVS HEAD (?) Line 1207  Version CVS HEAD (?)
1207      - volume of release triggered samples now depends on note-on velocity,      - volume of release triggered samples now depends on note-on velocity,
1208        note length and gig parameter "release trigger decay" instead of        note length and gig parameter "release trigger decay" instead of
1209        note-off velocity.        note-off velocity.
1210      - revised voice stealing (fixes crash caused by voice stealing)      - revised voice stealing
1211          (fixes crash and endless loop caused by voice stealing)
1212      - don't reset scale tuning on instrument or audio output device change      - don't reset scale tuning on instrument or audio output device change
1213        - handle key group conflicts right at the beginning of each fragment
1214          instead of when the respective voice is actually launched
1215          (fixes undefined behavior if stolen voices belonged to a key group -
1216          this case was followed by a "killed voice survived" error message)
1217        - fixed minor issue with null/silence samples
1218          (those stole voices even though they don't need a voice at all which
1219          resulted in "voice stealing didn't work out" messages)
1220        - don't reset volume, pan, pitch and MIDI controller values on
1221          instrument or audio output device change
1222    
1223    * LSCP server:    * LSCP server:
1224      - fixed some crashes (patch by Grigor Iliev, fixes #19)      - fixed some crashes (patch by Grigor Iliev, fixes #19)
1225        - fixed LSCP event "CHANNEL_INFO" notification
1226          (e.g. did not notify on volume changes or MIDI program change events)
1227    
1228      * linuxsampler application:
1229        - added command line parameters --lscp-addr and --lscp-port to override
1230          default IP address and port of LSCP server
1231    
1232  Version 0.3.1 (24 May 2005)  Version 0.3.1 (24 May 2005)
1233    

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