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revision 614 by persson, Mon Jun 6 16:54:20 2005 UTC revision 2043 by persson, Sat Jan 9 09:37:01 2010 UTC
# Line 1  Line 1 
1  Version CVS HEAD (?)  Version CVS HEAD (?)
2    
3      * General changes:
4        - Refactoring: moved the independent code from
5          the Gigasampler format engine to base classes
6    
7      * Gigasampler format engine:
8        - implemented the "round robin keyboard" dimension
9        - fixed round robin and random dimensions for cases when number of
10          dimension zones is not a power of two
11        - made round robin use a counter for each region instead of each
12          key
13    
14      * SFZ format engine
15        - Initial implementation (not usable yet)
16    
17      * SoundFont format engine
18        - Initial implementation (not usable yet)
19    
20      * Host plugins:
21        - AU bugfix: failed to destroy its audio/MIDI devices
22        - Listen to all interfaces on Mac OS X (INADDR_ANY)
23    
24      * MIDI driver:
25        - ALSA MIDI driver supports now "NAME" device parameter, for overriding
26          the ALSA sequencer client name
27    
28      * LSCP server:
29        - added support for sending MIDI CC messages via LSCP command
30          "SEND CHANNEL MIDI_DATA CC <sampler-chan> <ctrl> <val>"
31    
32      * Bug fixes:
33        - Fixed crash which may occur when MIDI key + transpose is out of range
34    
35    Version 1.0.0 (31 July 2009)
36    
37      * packaging changes:
38        - autoconf bugfix: the PKG_CONFIG variable wasn't initialized properly,
39          causing e.g. the libgig test to fail when
40          "./configure --disable-jack-driver" was used
41          (patch by Alexis Ballier)
42        - fixed compilation with gcc 4.3
43        - fixes for building on OS X (thanks to Ebrahim Mayat for testing)
44        - fixed configure so it detects x86_64 (#107)
45        - fixes for building with newer MinGW versions
46        - fix for building with bison 2.4 (#111)
47        - fixed building with libgig installed in a non-standard directory
48        - minor fix in configure for mmsystem.h detection on MinGW
49        - Windows: look for editor plugins and Fantasia using base
50          directory of liblinuxsampler dll (look in the same directory and one
51          directory above)
52        - configure script fix: removed unconditional use of SSE
53        - fixed building with sqlite installed in a non-standard directory
54        - when cross-compiling, don't try to create instruments.db
55        - fix for new mingw-w64 version, which has usleep
56    
57      * general changes:
58        - bugfix: on some POSIX systems instrument editor plugins refused to
59          load as we used a non-portable Linux specific struct field
60          (fixes bug #70, patch by Ronald Baljeu)
61        - fixed endless loop which occured when loading an instrument editor
62          plugin DLL on Windows systems failed
63        - fixed memory leaks that occurred when liblinuxsampler was unloaded
64        - optimized the SynchronizedConfig class so it doesn't wait
65          unnecessarily long after an update
66        - added support for notifying instrument editors on note-on / note-off
67          events (e.g. to highlight the pressed keys on the virtual keyboard
68          of gigedit)
69        - added support for triggering notes by instrument editors (see above)
70        - be verbose on DLL load errors (on Linux)
71        - fixed di-harmonic triangle LFO implementation (this LFO implementation
72          is only used by very few systems, most pick the int math
73          implementation, which is usually faster)
74        - fixes for audio drivers with varying buffer sizes
75        - experimental support for running LinuxSampler as a DSSI, LV2 and
76          VST plugin
77        - notification events for stream/voice count statistics are now sent
78          only when there are actual changes
79        - added memory ordering constraints to improve stability on
80          multi-core and multi-cpu systems
81        - maximum voices and disk streams can now be altered at runtime
82        - fixed CPU feature detection on x86_64 (maybe fixes #108)
83        - automatic stacktrace mechanism is now turned off by default and can
84          be switched on by command line option "--stacktrace" (the automatic
85          stacktrace mechanism seems to be broken on most systems at the moment)
86        - C++ API method InstrumentManager::LaunchInstrumentEditor() now returns
87          a pointer to the launched InstrumentEditor object
88        - added optional 3rd party user data parameter for following
89          liblinuxsampler C++ API methods: InstrumentEditor::Main(),
90          InstrumentEditor::Launch(),
91          InstrumentManager::LaunchInstrumentEditor()
92        - theoretical fix: made SynchronizedConfig follow C++0x memory
93          model more strictly
94        - fixes for using large audio device buffers
95        - Windows: add the installation directory to the DLL search path
96          when loading an editor plugin (solves problems with VST and
97          gigedit on systems with other GTK versions installed)
98    
99      * audio driver:
100        - removed the nonsense audio channel constraint (which was hard coded to
101          max. 100 audio channels) for most audio drivers
102        - JACK audio driver did not offer a device parameter "SAMPLERATE" as
103          opposed to the LSCP specs
104        - bugfix: the SAMPLERATE parameter of some drivers (e.g. JACK)
105          reflected the wrong value
106        - fixed a memory management bug in ASIO driver
107        - Makefile fix: JACK_CFLAGS wasn't used
108        - JACK: use jack_client_open instead of the deprecated
109          jack_client_new
110        - added (experimental) CoreAudio driver
111        - applied old fixes to the ASIO driver that were included in the
112          previous binary release but accidentally never committed to CVS
113          (fixes #117)
114        - fixes for ASIO on mingw-w64 (iasio wrapper is not needed on
115          win64)
116        - VST: added support for sample rate and buffer size changes
117        - VST: close editor (Fantasia) when the VST is removed
118        - VST: avoid opening Fantasia more than once for each VST instance
119        - VST: export main function as "main" on Linux too (fix for
120          energyXT)
121        - VST: changed number of output channels from one stereo to 16
122          stereo
123        - added channel routing, fxsends and midi maps to the settings
124          stored in the plugin state
125        - performance optimization of AudioChannel::MixTo() and
126          AudioChannel::CopyTo() methods using GCC vector exensions
127          (if available)
128        - ASIO fixes: avoid initializing the device twice, avoid throwing
129          exception when getting parameters from a disconnected device
130    
131      * MIDI driver:
132        - added JACK MIDI driver
133        - dispatch bank select as ordinary CC as well, the user might seriously
134          want to (mis)use it for some purpose ("fixed" in all current MIDI
135          input drivers: ALSA, CoreMIDI, JACK, MidiShare, MME)
136        - bugfix: pitch bend wasn't working with JackMidi, VST, LV2, MME,
137          CoreMidi or AU
138        - fixed mingw-w64 compilation error in MME driver
139        - made program change handling in MIDI thread real-time safe by
140          moving the logic to a non-RT thread
141        - fixed minor memory leak in ALSA driver
142    
143      * instruments database:
144        - avoid time consuming samples scanning when adding instruments
145          to the instruments database
146        - added support for handling lost files in the instruments database
147        - Implemented option for adding instruments in separate directories
148          in the instruments database
149          (patch by Chris Cherrett & Andrew Williams, a bit adjusted)
150        - work-around for missing fnmatch function on Windows to make
151          instrument database compilable
152        - added instrument database support on Windows
153          works with both standalone mode and VST plugin.
154          the instruments DB file is located in
155          %USERPROFILE%\.linuxsampler\instruments.db which allows different
156          databases for each windows user
157          if no DB is present it automatically creates the .linuxsampler subdir
158          and then creates an empty DB
159        - fixed recursive import, which was broken on Windows
160    
161      * Gigasampler format engine:
162        - fixed a memory leak that could happen when a channel was deleted
163          while notes were playing
164        - made it possible to load an instrument even if the audio thread
165          isn't running
166        - added partial support for the "Controller Triggered" MIDI rule,
167          enough for piano gigs with pedal noise samples
168        - minor fix: only mark FX sends as being modified if really the
169          respective FX send MIDI controller was used
170        - added support for GM global device volume SysEx message
171          (can be selected at compile time to either apply globally to the
172          whole sampler [default] or only to the sampler channels that are
173          connected to the respective MIDI input port the SysEx message arrived
174          on)
175        - bugfix: notes triggered at position 0 in the audio buffer were
176          sometimes wrongly killed in the same buffer, causing no sound to
177          be played
178        - added support for chromatic / drumkit mode Roland GS Sysex message
179          which is usally used to switch a part between chromatic sounds and
180          drumkit sounds (as opposed to their common default setting of MIDI
181          part 10 being a drumkit part and all other ones chromatic parts), in
182          LS however one can switch between the first 16 MIDI instrument maps
183          defined for the sampler
184        - made it possible to create multiple sample channels even if the
185          audio thread isn't running
186        - fixed crash when removing channel with active voices (#116)
187        - bugfix: on sample reference changes (instrument editor), only
188          un-cache the respective sample if it's really not used by any
189          sampler engine anymore
190        - re-cache samples in case they were changed by an instrument editor,
191          e.g. when a sample was added while playing (#82)
192        - fixed hanging notes which occured when note-off event had the exact
193          same time stamp as the voice's note-on event and occured both in the
194          same audio fragment cycle (fixes bug #112)
195        - added support for the "fine tune" and "pitch bend range"
196          instrument-level gig parameters
197        - fixed minor artifacts in pitch bend handling
198        - added support for GS Reset SysEx message
199        - allow gig files to use unlimited downward pitch shifting
200        - added a limit check for upward pitch shifting
201        - bugfix: sometimes, when playing a note twice fast, the second
202          note was silent
203        - fixed crash happening when a pitch bend event arrived at the
204          same time a new instrument was loading
205    
206      * LSCP server:
207        - added new LSCP event "CHANNEL_MIDI" which can be used by frontends to
208          react on MIDI data arriving on certain sampler channels (so far only
209          Note-On and Note-Off events are sent via this LSCP event)
210        - added new LSCP event "DEVICE_MIDI" which can be used by frontends to
211          react on MIDI data arriving on certain MIDI input devices (so far only
212          Note-On and Note-Off events are sent via this LSCP event)
213        - added new LSCP commands: FIND LOST DB_INSTRUMENT_FILES and
214          SET DB_INSTRUMENT FILE_PATH
215        - added new LSCP command: SEND CHANNEL MIDI_DATA which can be used by
216          frontends to send MIDI messages to specific sampler channel
217        - added two additional fields to GET FILE INSTRUMENT INFO command -
218          KEY_BINDINGS and KEYSWITCH_BINDINGS
219        - bugfix: the bank number provided by MIDI_INSTRUMENT_INFO notifications
220          was incorrect
221        - Optimized the retrieval of the MIDI instrument mappings
222        - added new LSCP command "SET VOICES" to globally alter the maximum
223          amount of voices, added new LSCP event "GLOBAL_INFO:VOICES" which will
224          be triggered respectively
225        - added new LSCP command "SET STREAMS" to globally alter the maximum
226          amount of disk streams, added new LSCP event "GLOBAL_INFO:STREAMS"
227          which will be triggered respectively
228        - bugfix: retry if "select" returns EINTR (this fixes a crash when
229          a gigedit file dialog is opened)
230        - close all connections when LSCPServer is deleted
231        - hard close of all sockets on exit
232        - bugfix: SET CHANNEL MIDI_INPUT_TYPE didn't work with the MME
233          driver
234    
235      * Bug fixes:
236        - fixed a crash which occurs when removing a sampler channel waiting
237          to start instrument loading after another channel
238        - fixed a crash which occurs when removing a sampler channel with
239          instrument loading in progress (bug #113)
240        - fixed termination caused by uncaught exception when adding MIDI
241          instrument with PERSISTENT load mode
242        - fixed possible iterator invalidations when resetting the sampler
243        - fixed memory leaks when issuing the following LSCP commands:
244          GET AUDIO_OUTPUT_DRIVER INFO
245          GET AUDIO_OUTPUT_DRIVER_PARAMETER INFO
246          GET MIDI_INPUT_DRIVER INFO
247          GET MIDI_INPUT_DRIVER_PARAMETER INFO
248        - fixed possible compilation error when sqlite is not present
249        - fixed orphaned pointers when setting maximum voices limit (bug #118)
250        - fixed crash when changing the audio output device of a sampler
251          channel with loaded instrument and start playing notes
252        - fixed endless loop in Engine::SuspendAll() (bug #120)
253        - fixed a low-level atomic load function that was broken on 64-bit
254          PowerPC, which probably could cause crashes on that platform
255        - fixed a memory management error which could cause a crash when a
256          plugin was unloaded
257        - bugfix: two private structs had the same name, which could cause
258          problems if the linker chose the wrong constructor
259        - fixed low-level ConditionServer usage bug that caused lockups on
260          Windows
261    
262    
263    Version 0.5.1 (6 December 2007)
264    
265      * packaging changes:
266        - added autoconf checks for pthread library
267        - added autoconf check for pthread bug found on certain NPTL-enabled
268          glibc versions (see Gentoo bug report #194076)
269        - added autoconf checks for MS Windows
270    
271      * general changes:
272        - bugfix: the thread used by an editor plugin didn't die when the
273          editor closed
274        - bugfix: Ringbuffer.h: fill_write_space_with_null() did not zero
275          out all the space. operator--() did not apply size_mask after
276          decrementing the read_ptr. DEFAULT_WRAP_ELEMENTS set to 0 in
277          order to avoid problems with the _NonVolatileReader functions.
278        - bugfix: Stream.h: added a missing divide by BytesPerSample in
279          GetWriteSpace(). Since this function is currently only used in
280          the stream's qsort() compare function, it didn't trigger any
281          bugs.
282        - Resampler.h, Synthesizer.h: cubic interpolation now works in
283          24bit mode too. Faster method to read 24bit words on little
284          endian machines (x86): replaced 3 byte reads + shifts with a 1
285          unaligned 32bit read and shift
286        - experimental support for MS Windows (MIDI input via MME, AUDIO
287          output via ASIO)
288        - made handling of SIGINT signal (Ctrl-C) a bit more robust
289        - support for monitoring the total number of active disk streams
290          (new LSCP commands: GET TOTAL_STREAM_COUNT,
291          SUBSCRIBE TOTAL_STREAM_COUNT, UNSUBSCRIBE TOTAL_STREAM_COUNT)
292    
293      * AUDIO driver:
294        - added Windows ASIO low latency audio driver
295    
296      * MIDI driver:
297        - added MME Windows MIDI driver
298    
299      * LSCP server:
300        - added support for Windows style path / filenames, however with
301          forward slash path separators instead of backslash
302          (i.e. "C:/foo/bar.gig")
303        - allow naughty liblscp to send non-string device parameters within
304          apostrophes as well
305        - added new LSCP commands: "GET FILE INSTRUMENTS <file>",
306          "LIST FILE INSTRUMENTS <file>" and
307          "GET FILE INSTRUMENT INFO <file> <index>" for retrieving informations
308          about an arbitrary instrument file on the system where the sampler is
309          running on
310    
311    Version 0.5.0 (15 October 2007)
312    
313      * packaging changes:
314        - config.h is not going to be installed along with liblinuxsampler's
315          API header files anymore
316        - only the API relevant header (and source) files will be exported to
317          the Doxygen API documentation (explicitly listed in Doxyfile.in)
318        - added completely new XCode project files for Mac OSX which is now
319          capable to execute our autoconf environment, thus no need anymore
320          to maintain the compile time configuration file (osx/version.h) for
321          OSX manually (patch by Toshi Nagata)
322        - fixed buggy boolean --enable-foo / --disable-foo configure script
323          parameters
324        - global.h now only covers global definitions that are needed for the
325          C++ API header files, all implementation internal global definitions
326          are now in global_private.h
327        - atomic.h is not exposed to the C++ API anymore
328        - no need to include config.h anymore for using LS's API header files
329        - fixed warnings in API doc generation
330    
331      * general changes:
332        - replaced the old, confusing MIDI program change mechanism by a
333          flexible MIDI instrument mapper which allows to map arbitrary
334          (MIDI bank, MIDI program) pairs with arbitrary
335          (engine type, instrument file, file index) triplets which will be
336          loaded on the respective channel when such MIDI program change
337          messages arrive, beside that, each entry allows to define a life-time
338          strategy for the instrument, so the user can define whether the
339          instrument should i.e. be permanently loaded (to be able to switch
340          quickly among sounds) or i.e. loaded just on demand when the
341          respective program change arrives (to safe RAM space), as well as a
342          global volume factor for each entry, so the user can adjust the volume
343          dynamic of his mapped instrument collection without having to modify
344          the instrument files, also one can manage arbitrary amount of such
345          MIDI instrument maps and assign each sampler channel individually
346          a certain map, so that i.e. separation of normal instruments and
347          drumkits is possible
348        - new notification events for tracking changes to audio/MIDI devices,
349          MIDI instrument maps, MIDI instruments, FX sends, global volume.
350        - sampler was limited to load max. 200 instruments in the background
351          due to a constant size RingBuffer FIFO which is now replaced by a
352          dynamic (unlimited) size std::list FIFO
353        - added FX sends, these allow to route audio signals to arbitrary audio
354          output channels for being processed by external effect processors
355          (i.e. jack-rack), the send levels are controllable via arbitrary MIDI
356          controllers
357        - global (sampler wide) volume can now be controlled at runtime
358        - Implemented new, improved notification system
359        - fixed compilation errors regarding OSX
360          (patch by Toshi Nagata)
361        - implemented instruments database
362        - added support for escape sequences to the instruments database
363        - added highly experimental support for on-the-fly instrument editing
364          within the sampler's process (by using instrument editor plugins),
365          you'll notice the new "Registered instrument editors:" message on
366          startup, added a new LSCP command:
367          "EDIT CHANNEL INSTRUMENT <sampler-channel>"
368          to spawn a matching instrument editor for the instrument on the
369          given sampler channel, the plugin path can be overridden at compile
370          time with ./configure --enable-plugin-dir=/some/dir
371        - added experimental code for synchronizing instrument editors hosted
372          in the sampler's process to safely edit instruments while playing
373          without a crash (hopefully) by either suspending single regions
374          wherever possible or if unavoidable whole engine(s)
375        - fixed several issues in fundamental "Thread" class: set scheduling
376          policy and priority on thread level, set a minimum stack size for
377          thread (TODO: a reasonable value yet to be tested), bugfix: non-RT
378          threads simply inherited properties of starting thread instead of
379          setting their own policy and priority
380        - minor fix in our automatic stack trace mechanism on crashes, the
381          main process did not wait for the stack trace process to finish
382          its output
383        - fixed some minor memory leaks
384        - reenabled assembly features support, at the moment only for
385          enabling a fast denormal FPU mode (x86 platforms supporting SSE2)
386        - minor assembly fix in x86 features detection (don't use the PIC
387          register, to avoid relocations in the text segment at runtime)
388        - POSIX callback functions of Thread.h are hidden
389    
390      * MIDI driver:
391        - dispatch bank select (MSB and LSB) messages
392    
393      * audio driver:
394        - the ALSA audio output driver parameters now reflect the correct
395          parameter value ranges for the respective selected sound card
396          (patch by Till Wimmer, a bit fixed and extended)
397    
398      * Gigasampler format engine:
399        - if a filter is used and EG2 finishes before EG1, let the voice
400          die when EG2 has finished (this fixes a problem with clicks and
401          voice starvation for some gigs)
402        - playback is no longer disabled during instrument loading
403        - all notes playing on a channel that changes its instrument keep
404          playing with the old instrument until they get a note off
405          command
406        - EG fix: a release value of zero could cause noises or crash
407        - handle MIDI coarse tuning messages (MIDI RPN #0 MSB #2 LSB)
408        - EG fine tuning: when attack is zero the EG starts at a level
409          above max sustain level, which means that there is a decay phase
410          even if sustain is 100%
411        - more EG fixes: the level could sometimes go below zero and cause
412          noises or crashes
413        - minor fix of EGDecay (patch by Toshi Nagata)
414        - fixed compiler error when --enable-override-filter-type was
415          supplied to the configure script (fixes #46)
416        - disk thread: queue sizes are now proportional to CONFIG_MAX_STREAMS
417          instead of a fix value
418        - behavior fix: on MIDI CC# 65 (portamento on / off), 126 (mono mode),
419          127 (solo mode) only kill voices if the respective mode really
420          changed
421    
422      * LSCP server:
423        - fixed compile time error for old Bison versions
424          (i.e. v1.28 found on MacOS 10.4, patch by Toshi Nagata)
425        - parser now supports extended ASCII character set
426          (up to ASCII code 255, i.e. includes now umlauts and accents)
427        - filename arguments in LSCP commands now allow to use escape
428          sequences, that is directly literal as one of: \', \", \\, \n, \r,
429          \f, \t, \v, or as octal ASCII code value like \132, or as hex ASCII
430          code value like \xf2) (fixes bug #24)
431        - the following LSCP commands now also support escape sequences for at
432          least one of their text-based parameters (i.e. name, description):
433          "ADD MIDI_INSTRUMENT_MAP", "MAP MIDI_INSTRUMENT",
434          "SET MIDI_INSTRUMENT_MAP NAME", "SET FX_SEND NAME", "CREATE FX_SEND",
435          "SET DB_INSTRUMENT_DIRECTORY NAME",
436          "SET DB_INSTRUMENT_DIRECTORY DESCRIPTION", "SET DB_INSTRUMENT NAME",
437          "SET DB_INSTRUMENT DESCRIPTION", "FIND DB_INSTRUMENTS",
438          "FIND DB_INSTRUMENT_DIRECTORIES"
439        - returns verbose syntax errors (line and column where syntax error
440          occured, the unexpected character and the actually expected, possible
441          character(s), the latter only if less than 5 possibilities)
442        - made sure that LSCP syntax is not affected by gigedit locale
443          settings
444        - bugfix regarding strings parameter lists: all comma separated lists
445          of strings were treated as being one string containing commas
446          (fixes #57)
447    
448      * Bug fixes:
449        - fixed crash occurring on certain LSCP scripts (Bug 39)
450        - another thread safety fix for lscp "load engine" and "set
451          channel audio output device"
452        - fixed a crash which occurs when reassigning the same engine
453          on a sampler channel with connected MIDI device
454        - fixed a crash which occurs when changing the number of ports of a MIDI
455          device connected to a sampler channel to number less then or equal
456          to the index of the port to which the sampler channel is connected.
457        - The previous bindings were not been disconnected when altering
458          the ALSA_SEQ_BINDINGS parameter. Introduced a NONE keyword for
459          unsubscribing from all bindings (e.g. ALSA_SEQ_BINDINGS=NONE).
460        - The active stream/voice count statistic was incorrect.
461        - notification events were not been sent for some sampler
462          channel changes
463        - added default min and max values to restrict the number of allowed
464          audio output channels and MIDI input ports
465        - the connection to the PCM interface is now closed when destroying
466          an audio output device
467        - files with slash in their path or filename could not be loaded
468    
469      * test cases:
470        - updated and fixed (haven't been touched in a while)
471    
472    Version 0.4.0 (24 November 2006)
473    
474      * packaging changes:
475        - changed deprecated copyright attribute to license; added ldconfig
476          to post-(un)install steps; added devel package for liblinuxsampler;
477          to linuxsampler.spec (RPM)
478        - install necessary development header files for allowing 3rd party
479          applications to link against liblinuxsampler
480        - liblinuxsampler's API documentation can be generated with 'make docs'
481          (Doxygen required)
482        - added benchmark to automatically detect the best triangle LFO
483          implementation (currently either an integer math solution or a
484          di-harmonic approximation), automatic detection can be overriden
485          with --enable-signed-triang-algo=x and --enable-unsigned-triang-algo=x
486          configure script argument though (mandatory for cross-compilation)
487        - do not automatically pick optimized gcc flags if the user already
488          provided some on his own (as CXXFLAGS)
489        - added compile time option to disable processing of All-Notes-Off MIDI
490          messages
491        - added compile time options to allow disabling the various audio and
492          MIDI drivers
493        - fixed automatic GCC CPU switch detection on PPC
494          (patch by Ebrahim Mayat)
495    
496      * Gigasampler format engine:
497        - extensive synthesis optimization
498          (reimplementation of EGs and LFO(s), removed synthesis parameter
499          prerendering and the synthesis parameter matrix in general, splitting
500          each audio fragment into subfragments now where each subfragment uses
501          constant pitch and filter coefficients. The volume coefficient is
502          linearly interpolated inside a subfragment, unless
503          --disable-interpolate-volume is set.)
504        - fine tuning of the EG modulation parameters
505        - improved filter cutoff calculation by adding support for the
506          following gig parameters: Cutoff freq (used when no cutoff
507          controller is defined), Control invert, Minimum cutoff, Velocity
508          curve and Velocity range. The keyboard tracking now scales
509          cutoff frequency instead of resonance.
510        - added support for gig parameter Resonance.
511        - fixed bug in sysex handling (patch by Juan Linietsky)
512        - added global volume attenuation of -9 dB (0.35f) to prevent clipping
513          which can be overridden with --enable-global-attenuation
514        - EG fixes: made the length of "attack hold" stage more
515          accurate. Release stage can now start before attack stage
516          ends. Cancel release didn't work when sustain was zero. Attack
517          time now has a minimal value to prevent clicks.
518        - fixed pitch changes larger than one octave
519        - fixed EG3 (pitch envelope) synthesis which was neutral all the time
520        - implemented portamento mode and solo mode (a.k.a 'mono mode'):
521          all modes can be altered via standard GM messages, that is CC5 for
522          altering portamento time, CC65 for enabling / disabling portamento
523          mode, CC126 for enabling solo mode and CC127 for disabling solo mode
524        - fine tuning of the curves for volume (CC7), pan (CC10 and gig
525          parameter) and crossfade
526        - added support for the "attenuation controller threshold" gig
527          parameter
528        - added smoothing of volume changes caused by control change
529          messages
530        - sample loop parameters are now taken from the DimensionRegion
531          instead of the wave chunk
532        - fixed keyswitching for v3 gigs with a number of keyswitch splits
533          not equal to a power of two
534        - reimplementation of the filter algorithm. The new filter is more
535          accurate and supports all gig filter types, including bandreject
536          and lowpass turbo.
537        - real support for 24 bit samples - samples are not truncated to
538          16 bits anymore
539        - support for aftertouch (channel pressure, not polyphonic
540          aftertouch)
541        - LFO1 behaviour fixed (dampening from max volume instead of
542          amplifying from 0)
543    
544      * LSCP server:
545        - fixed application exit on broken pipe error (fixes bug #20)
546        - fixed the notification messages delay due to lack of
547          network activity (fixes bug #26)
548        - fixed parser bug which occured on space(s) within device parameters
549          (e.g. "SET AUDIO_OUTPUT_CHANNEL_PARAMETER 0 0 SOMEPARAM='foo bar'")
550    
551      * audio driver:
552        - added aRts audio output driver (by no means RT safe)
553    
554      * MIDI driver:
555        - fixed legacy sysex code which caused dispatching of MIDI SysEx
556          messages several times instead of once
557        - API extension for MIDI drivers which already supply exact time stamps
558          for events (i.e. for offline rendering based MIDI drivers)
559        - added checks for bad MIDI data
560    
561      * linuxsampler application:
562        - show available sampler engine types on startup
563    
564      * general changes:
565        - support for muting sampler channels and solo mode of the same, two new
566          LSCP commands ("SET CHANNEL MUTE" and "SET CHANNEL SOLO") and two new
567          fields ("MUTE" and "SOLO") for command "GET CHANNEL INFO" were
568          introduced for this, the behavior is the same like on a mixer console
569          (patch by Grigor Iliev, a bit adjusted). Also added configure option
570          --enable-process-muted-channels which can be used to enable the
571          processing of muted channels.
572        - support for sostenuto pedal
573        - support for monitoring the total number of active voices
574          (new LSCP commands: GET TOTAL_VOICE_COUNT, GET TOTAL_VOICE_COUNT_MAX,
575          SUBSCRIBE TOTAL_VOICE_COUNT, UNSUBSCRIBE TOTAL_VOICE_COUNT)
576        - fixed some memory management errors
577        - fixed some concurrency problems that could lead to crashes when
578          LSCP commands were executed
579        - fixed crash when instrument loading failed previously on the same
580          sampler channel (fixes bug #36)
581    
582    Version 0.3.3 (15 July 2005)
583    
584      * packaging changes:
585        - fixed compilation with gcc 4.0
586    
587      * Gigasampler format engine:
588        - LFO preprocessing was performed even though the respective LFO was
589          disabled by the instrument patch (minor efficiency fix)
590        - if period time of chosen audio device is too small (< MIN_RELEASE_TIME)
591          for volume ramp downs in the same fragment (needed for current voice
592          stealing implementation) then simply inform the user with a warning
593          about possible click sounds and reduce the volume ramp down
594          appropriately instead of cancelling the audio device connection
595    
596    Version 0.3.2 (24 June 2005)
597    
598    * packaging changes:    * packaging changes:
599      - updated autotools build files to compile on OS X      - updated autotools build files to compile on OS X
600        (conditional compilation of CoreMIDI and MidiShare drivers)        (conditional compilation of CoreMIDI and MidiShare drivers)
601    * support for the gig parameters for "release velocity response"      - hand-crafted assembly optimization code can be disabled with
602      curves        './configure --disable-asm' (definitely not recommended)
603    * fine tuning of the EGADSR envelope      - fixed 'make dist' rule to include all necessary files
604        - require automake (>= 1.5) for 'make -f Makefile.cvs'
605          (due to 'dist-bzip2' automake option)
606    
607      * Gigasampler format engine:
608        - support for the gig parameters for "release velocity response" curves
609        - fine tuning of the EGADSR envelope
610        - volume of release triggered samples now depends on note-on velocity,
611          note length and gig parameter "release trigger decay" instead of
612          note-off velocity.
613        - revised voice stealing
614          (fixes crash and endless loop caused by voice stealing)
615        - don't reset scale tuning on instrument or audio output device change
616        - handle key group conflicts right at the beginning of each fragment
617          instead of when the respective voice is actually launched
618          (fixes undefined behavior if stolen voices belonged to a key group -
619          this case was followed by a "killed voice survived" error message)
620        - fixed minor issue with null/silence samples
621          (those stole voices even though they don't need a voice at all which
622          resulted in "voice stealing didn't work out" messages)
623        - don't reset volume, pan, pitch and MIDI controller values on
624          instrument or audio output device change
625    
626      * LSCP server:
627        - fixed some crashes (patch by Grigor Iliev, fixes #19)
628        - fixed LSCP event "CHANNEL_INFO" notification
629          (e.g. did not notify on volume changes or MIDI program change events)
630    
631      * linuxsampler application:
632        - added command line parameters --lscp-addr and --lscp-port to override
633          default IP address and port of LSCP server
634    
635  Version 0.3.1 (24 May 2005)  Version 0.3.1 (24 May 2005)
636    

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