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revision 677 by schoenebeck, Thu Jun 23 22:44:59 2005 UTC revision 2072 by persson, Sat Mar 20 11:37:52 2010 UTC
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1    Version CVS HEAD (?)
2    
3      * General changes:
4        - Refactoring: moved the independent code from
5          the Gigasampler format engine to base classes
6        - command line option '--profile' is currently disabled, since the
7          respective profiling code is currently broken
8        - Introduced support for optional environment variable
9          "LINUXSAMPLER_PLUGIN_DIR" which allows to override the directory
10          where the sampler shall look for instrument editor plugins
11          (patch by Luis Garrido, slightly modified).
12    
13      * Gigasampler format engine:
14        - implemented the "round robin keyboard" dimension
15        - fixed round robin and random dimensions for cases when number of
16          dimension zones is not a power of two
17        - made round robin use a counter for each region instead of each
18          key
19    
20      * SFZ format engine:
21        - Initial implementation (not usable yet)
22        - added support for v2 multiple stage envelope generators
23        - added a fine-tuned v1 envelope generator instead of using the
24          one from the gig engine
25        - fixed memory leak and memory handling errors
26        - added support for trigger=first, trigger=legato and sw_previous
27        - allow non-numerical key values ("C#4" for example)
28        - "key" opcode now sets pitch_keycenter too
29        - fixed error when unloading instrument with same sample used by
30          multiple regions
31        - added some opcode aliases, like loopmode for loop_mode, to be
32          more compatible
33        - added support for trigger=release and rt_decay
34        - added support for off_mode=normal
35        - added support for random, seq_position, seq_length and volume
36        - added v1 LFO opcodes to parser (no support in engine yet)
37    
38      * SoundFont format engine:
39        - Initial implementation (not usable yet)
40    
41      * Host plugins:
42        - AU bugfix: failed to destroy its audio/MIDI devices
43        - Listen to all interfaces on Mac OS X (INADDR_ANY)
44        - VST bugfix: If the host called resume() before and after
45          changing sample rate or block size, the number of channels was
46          incorrectly set to two. This caused silence in Cubase 5.
47    
48      * MIDI driver:
49        - ALSA MIDI driver supports now "NAME" device parameter, for overriding
50          the ALSA sequencer client name
51    
52      * LSCP server:
53        - added support for sending MIDI CC messages via LSCP command
54          "SEND CHANNEL MIDI_DATA CC <sampler-chan> <ctrl> <val>"
55    
56      * Bug fixes:
57        - Fixed crash which may occur when MIDI key + transpose is out of range
58    
59    Version 1.0.0 (31 July 2009)
60    
61      * packaging changes:
62        - autoconf bugfix: the PKG_CONFIG variable wasn't initialized properly,
63          causing e.g. the libgig test to fail when
64          "./configure --disable-jack-driver" was used
65          (patch by Alexis Ballier)
66        - fixed compilation with gcc 4.3
67        - fixes for building on OS X (thanks to Ebrahim Mayat for testing)
68        - fixed configure so it detects x86_64 (#107)
69        - fixes for building with newer MinGW versions
70        - fix for building with bison 2.4 (#111)
71        - fixed building with libgig installed in a non-standard directory
72        - minor fix in configure for mmsystem.h detection on MinGW
73        - Windows: look for editor plugins and Fantasia using base
74          directory of liblinuxsampler dll (look in the same directory and one
75          directory above)
76        - configure script fix: removed unconditional use of SSE
77        - fixed building with sqlite installed in a non-standard directory
78        - when cross-compiling, don't try to create instruments.db
79        - fix for new mingw-w64 version, which has usleep
80    
81      * general changes:
82        - bugfix: on some POSIX systems instrument editor plugins refused to
83          load as we used a non-portable Linux specific struct field
84          (fixes bug #70, patch by Ronald Baljeu)
85        - fixed endless loop which occured when loading an instrument editor
86          plugin DLL on Windows systems failed
87        - fixed memory leaks that occurred when liblinuxsampler was unloaded
88        - optimized the SynchronizedConfig class so it doesn't wait
89          unnecessarily long after an update
90        - added support for notifying instrument editors on note-on / note-off
91          events (e.g. to highlight the pressed keys on the virtual keyboard
92          of gigedit)
93        - added support for triggering notes by instrument editors (see above)
94        - be verbose on DLL load errors (on Linux)
95        - fixed di-harmonic triangle LFO implementation (this LFO implementation
96          is only used by very few systems, most pick the int math
97          implementation, which is usually faster)
98        - fixes for audio drivers with varying buffer sizes
99        - experimental support for running LinuxSampler as a DSSI, LV2 and
100          VST plugin
101        - notification events for stream/voice count statistics are now sent
102          only when there are actual changes
103        - added memory ordering constraints to improve stability on
104          multi-core and multi-cpu systems
105        - maximum voices and disk streams can now be altered at runtime
106        - fixed CPU feature detection on x86_64 (maybe fixes #108)
107        - automatic stacktrace mechanism is now turned off by default and can
108          be switched on by command line option "--stacktrace" (the automatic
109          stacktrace mechanism seems to be broken on most systems at the moment)
110        - C++ API method InstrumentManager::LaunchInstrumentEditor() now returns
111          a pointer to the launched InstrumentEditor object
112        - added optional 3rd party user data parameter for following
113          liblinuxsampler C++ API methods: InstrumentEditor::Main(),
114          InstrumentEditor::Launch(),
115          InstrumentManager::LaunchInstrumentEditor()
116        - theoretical fix: made SynchronizedConfig follow C++0x memory
117          model more strictly
118        - fixes for using large audio device buffers
119        - Windows: add the installation directory to the DLL search path
120          when loading an editor plugin (solves problems with VST and
121          gigedit on systems with other GTK versions installed)
122    
123      * audio driver:
124        - removed the nonsense audio channel constraint (which was hard coded to
125          max. 100 audio channels) for most audio drivers
126        - JACK audio driver did not offer a device parameter "SAMPLERATE" as
127          opposed to the LSCP specs
128        - bugfix: the SAMPLERATE parameter of some drivers (e.g. JACK)
129          reflected the wrong value
130        - fixed a memory management bug in ASIO driver
131        - Makefile fix: JACK_CFLAGS wasn't used
132        - JACK: use jack_client_open instead of the deprecated
133          jack_client_new
134        - added (experimental) CoreAudio driver
135        - applied old fixes to the ASIO driver that were included in the
136          previous binary release but accidentally never committed to CVS
137          (fixes #117)
138        - fixes for ASIO on mingw-w64 (iasio wrapper is not needed on
139          win64)
140        - VST: added support for sample rate and buffer size changes
141        - VST: close editor (Fantasia) when the VST is removed
142        - VST: avoid opening Fantasia more than once for each VST instance
143        - VST: export main function as "main" on Linux too (fix for
144          energyXT)
145        - VST: changed number of output channels from one stereo to 16
146          stereo
147        - added channel routing, fxsends and midi maps to the settings
148          stored in the plugin state
149        - performance optimization of AudioChannel::MixTo() and
150          AudioChannel::CopyTo() methods using GCC vector exensions
151          (if available)
152        - ASIO fixes: avoid initializing the device twice, avoid throwing
153          exception when getting parameters from a disconnected device
154    
155      * MIDI driver:
156        - added JACK MIDI driver
157        - dispatch bank select as ordinary CC as well, the user might seriously
158          want to (mis)use it for some purpose ("fixed" in all current MIDI
159          input drivers: ALSA, CoreMIDI, JACK, MidiShare, MME)
160        - bugfix: pitch bend wasn't working with JackMidi, VST, LV2, MME,
161          CoreMidi or AU
162        - fixed mingw-w64 compilation error in MME driver
163        - made program change handling in MIDI thread real-time safe by
164          moving the logic to a non-RT thread
165        - fixed minor memory leak in ALSA driver
166    
167      * instruments database:
168        - avoid time consuming samples scanning when adding instruments
169          to the instruments database
170        - added support for handling lost files in the instruments database
171        - Implemented option for adding instruments in separate directories
172          in the instruments database
173          (patch by Chris Cherrett & Andrew Williams, a bit adjusted)
174        - work-around for missing fnmatch function on Windows to make
175          instrument database compilable
176        - added instrument database support on Windows
177          works with both standalone mode and VST plugin.
178          the instruments DB file is located in
179          %USERPROFILE%\.linuxsampler\instruments.db which allows different
180          databases for each windows user
181          if no DB is present it automatically creates the .linuxsampler subdir
182          and then creates an empty DB
183        - fixed recursive import, which was broken on Windows
184    
185      * Gigasampler format engine:
186        - fixed a memory leak that could happen when a channel was deleted
187          while notes were playing
188        - made it possible to load an instrument even if the audio thread
189          isn't running
190        - added partial support for the "Controller Triggered" MIDI rule,
191          enough for piano gigs with pedal noise samples
192        - minor fix: only mark FX sends as being modified if really the
193          respective FX send MIDI controller was used
194        - added support for GM global device volume SysEx message
195          (can be selected at compile time to either apply globally to the
196          whole sampler [default] or only to the sampler channels that are
197          connected to the respective MIDI input port the SysEx message arrived
198          on)
199        - bugfix: notes triggered at position 0 in the audio buffer were
200          sometimes wrongly killed in the same buffer, causing no sound to
201          be played
202        - added support for chromatic / drumkit mode Roland GS Sysex message
203          which is usally used to switch a part between chromatic sounds and
204          drumkit sounds (as opposed to their common default setting of MIDI
205          part 10 being a drumkit part and all other ones chromatic parts), in
206          LS however one can switch between the first 16 MIDI instrument maps
207          defined for the sampler
208        - made it possible to create multiple sample channels even if the
209          audio thread isn't running
210        - fixed crash when removing channel with active voices (#116)
211        - bugfix: on sample reference changes (instrument editor), only
212          un-cache the respective sample if it's really not used by any
213          sampler engine anymore
214        - re-cache samples in case they were changed by an instrument editor,
215          e.g. when a sample was added while playing (#82)
216        - fixed hanging notes which occured when note-off event had the exact
217          same time stamp as the voice's note-on event and occured both in the
218          same audio fragment cycle (fixes bug #112)
219        - added support for the "fine tune" and "pitch bend range"
220          instrument-level gig parameters
221        - fixed minor artifacts in pitch bend handling
222        - added support for GS Reset SysEx message
223        - allow gig files to use unlimited downward pitch shifting
224        - added a limit check for upward pitch shifting
225        - bugfix: sometimes, when playing a note twice fast, the second
226          note was silent
227        - fixed crash happening when a pitch bend event arrived at the
228          same time a new instrument was loading
229    
230      * LSCP server:
231        - added new LSCP event "CHANNEL_MIDI" which can be used by frontends to
232          react on MIDI data arriving on certain sampler channels (so far only
233          Note-On and Note-Off events are sent via this LSCP event)
234        - added new LSCP event "DEVICE_MIDI" which can be used by frontends to
235          react on MIDI data arriving on certain MIDI input devices (so far only
236          Note-On and Note-Off events are sent via this LSCP event)
237        - added new LSCP commands: FIND LOST DB_INSTRUMENT_FILES and
238          SET DB_INSTRUMENT FILE_PATH
239        - added new LSCP command: SEND CHANNEL MIDI_DATA which can be used by
240          frontends to send MIDI messages to specific sampler channel
241        - added two additional fields to GET FILE INSTRUMENT INFO command -
242          KEY_BINDINGS and KEYSWITCH_BINDINGS
243        - bugfix: the bank number provided by MIDI_INSTRUMENT_INFO notifications
244          was incorrect
245        - Optimized the retrieval of the MIDI instrument mappings
246        - added new LSCP command "SET VOICES" to globally alter the maximum
247          amount of voices, added new LSCP event "GLOBAL_INFO:VOICES" which will
248          be triggered respectively
249        - added new LSCP command "SET STREAMS" to globally alter the maximum
250          amount of disk streams, added new LSCP event "GLOBAL_INFO:STREAMS"
251          which will be triggered respectively
252        - bugfix: retry if "select" returns EINTR (this fixes a crash when
253          a gigedit file dialog is opened)
254        - close all connections when LSCPServer is deleted
255        - hard close of all sockets on exit
256        - bugfix: SET CHANNEL MIDI_INPUT_TYPE didn't work with the MME
257          driver
258    
259      * Bug fixes:
260        - fixed a crash which occurs when removing a sampler channel waiting
261          to start instrument loading after another channel
262        - fixed a crash which occurs when removing a sampler channel with
263          instrument loading in progress (bug #113)
264        - fixed termination caused by uncaught exception when adding MIDI
265          instrument with PERSISTENT load mode
266        - fixed possible iterator invalidations when resetting the sampler
267        - fixed memory leaks when issuing the following LSCP commands:
268          GET AUDIO_OUTPUT_DRIVER INFO
269          GET AUDIO_OUTPUT_DRIVER_PARAMETER INFO
270          GET MIDI_INPUT_DRIVER INFO
271          GET MIDI_INPUT_DRIVER_PARAMETER INFO
272        - fixed possible compilation error when sqlite is not present
273        - fixed orphaned pointers when setting maximum voices limit (bug #118)
274        - fixed crash when changing the audio output device of a sampler
275          channel with loaded instrument and start playing notes
276        - fixed endless loop in Engine::SuspendAll() (bug #120)
277        - fixed a low-level atomic load function that was broken on 64-bit
278          PowerPC, which probably could cause crashes on that platform
279        - fixed a memory management error which could cause a crash when a
280          plugin was unloaded
281        - bugfix: two private structs had the same name, which could cause
282          problems if the linker chose the wrong constructor
283        - fixed low-level ConditionServer usage bug that caused lockups on
284          Windows
285    
286    
287    Version 0.5.1 (6 December 2007)
288    
289      * packaging changes:
290        - added autoconf checks for pthread library
291        - added autoconf check for pthread bug found on certain NPTL-enabled
292          glibc versions (see Gentoo bug report #194076)
293        - added autoconf checks for MS Windows
294    
295      * general changes:
296        - bugfix: the thread used by an editor plugin didn't die when the
297          editor closed
298        - bugfix: Ringbuffer.h: fill_write_space_with_null() did not zero
299          out all the space. operator--() did not apply size_mask after
300          decrementing the read_ptr. DEFAULT_WRAP_ELEMENTS set to 0 in
301          order to avoid problems with the _NonVolatileReader functions.
302        - bugfix: Stream.h: added a missing divide by BytesPerSample in
303          GetWriteSpace(). Since this function is currently only used in
304          the stream's qsort() compare function, it didn't trigger any
305          bugs.
306        - Resampler.h, Synthesizer.h: cubic interpolation now works in
307          24bit mode too. Faster method to read 24bit words on little
308          endian machines (x86): replaced 3 byte reads + shifts with a 1
309          unaligned 32bit read and shift
310        - experimental support for MS Windows (MIDI input via MME, AUDIO
311          output via ASIO)
312        - made handling of SIGINT signal (Ctrl-C) a bit more robust
313        - support for monitoring the total number of active disk streams
314          (new LSCP commands: GET TOTAL_STREAM_COUNT,
315          SUBSCRIBE TOTAL_STREAM_COUNT, UNSUBSCRIBE TOTAL_STREAM_COUNT)
316    
317      * AUDIO driver:
318        - added Windows ASIO low latency audio driver
319    
320      * MIDI driver:
321        - added MME Windows MIDI driver
322    
323      * LSCP server:
324        - added support for Windows style path / filenames, however with
325          forward slash path separators instead of backslash
326          (i.e. "C:/foo/bar.gig")
327        - allow naughty liblscp to send non-string device parameters within
328          apostrophes as well
329        - added new LSCP commands: "GET FILE INSTRUMENTS <file>",
330          "LIST FILE INSTRUMENTS <file>" and
331          "GET FILE INSTRUMENT INFO <file> <index>" for retrieving informations
332          about an arbitrary instrument file on the system where the sampler is
333          running on
334    
335    Version 0.5.0 (15 October 2007)
336    
337      * packaging changes:
338        - config.h is not going to be installed along with liblinuxsampler's
339          API header files anymore
340        - only the API relevant header (and source) files will be exported to
341          the Doxygen API documentation (explicitly listed in Doxyfile.in)
342        - added completely new XCode project files for Mac OSX which is now
343          capable to execute our autoconf environment, thus no need anymore
344          to maintain the compile time configuration file (osx/version.h) for
345          OSX manually (patch by Toshi Nagata)
346        - fixed buggy boolean --enable-foo / --disable-foo configure script
347          parameters
348        - global.h now only covers global definitions that are needed for the
349          C++ API header files, all implementation internal global definitions
350          are now in global_private.h
351        - atomic.h is not exposed to the C++ API anymore
352        - no need to include config.h anymore for using LS's API header files
353        - fixed warnings in API doc generation
354    
355      * general changes:
356        - replaced the old, confusing MIDI program change mechanism by a
357          flexible MIDI instrument mapper which allows to map arbitrary
358          (MIDI bank, MIDI program) pairs with arbitrary
359          (engine type, instrument file, file index) triplets which will be
360          loaded on the respective channel when such MIDI program change
361          messages arrive, beside that, each entry allows to define a life-time
362          strategy for the instrument, so the user can define whether the
363          instrument should i.e. be permanently loaded (to be able to switch
364          quickly among sounds) or i.e. loaded just on demand when the
365          respective program change arrives (to safe RAM space), as well as a
366          global volume factor for each entry, so the user can adjust the volume
367          dynamic of his mapped instrument collection without having to modify
368          the instrument files, also one can manage arbitrary amount of such
369          MIDI instrument maps and assign each sampler channel individually
370          a certain map, so that i.e. separation of normal instruments and
371          drumkits is possible
372        - new notification events for tracking changes to audio/MIDI devices,
373          MIDI instrument maps, MIDI instruments, FX sends, global volume.
374        - sampler was limited to load max. 200 instruments in the background
375          due to a constant size RingBuffer FIFO which is now replaced by a
376          dynamic (unlimited) size std::list FIFO
377        - added FX sends, these allow to route audio signals to arbitrary audio
378          output channels for being processed by external effect processors
379          (i.e. jack-rack), the send levels are controllable via arbitrary MIDI
380          controllers
381        - global (sampler wide) volume can now be controlled at runtime
382        - Implemented new, improved notification system
383        - fixed compilation errors regarding OSX
384          (patch by Toshi Nagata)
385        - implemented instruments database
386        - added support for escape sequences to the instruments database
387        - added highly experimental support for on-the-fly instrument editing
388          within the sampler's process (by using instrument editor plugins),
389          you'll notice the new "Registered instrument editors:" message on
390          startup, added a new LSCP command:
391          "EDIT CHANNEL INSTRUMENT <sampler-channel>"
392          to spawn a matching instrument editor for the instrument on the
393          given sampler channel, the plugin path can be overridden at compile
394          time with ./configure --enable-plugin-dir=/some/dir
395        - added experimental code for synchronizing instrument editors hosted
396          in the sampler's process to safely edit instruments while playing
397          without a crash (hopefully) by either suspending single regions
398          wherever possible or if unavoidable whole engine(s)
399        - fixed several issues in fundamental "Thread" class: set scheduling
400          policy and priority on thread level, set a minimum stack size for
401          thread (TODO: a reasonable value yet to be tested), bugfix: non-RT
402          threads simply inherited properties of starting thread instead of
403          setting their own policy and priority
404        - minor fix in our automatic stack trace mechanism on crashes, the
405          main process did not wait for the stack trace process to finish
406          its output
407        - fixed some minor memory leaks
408        - reenabled assembly features support, at the moment only for
409          enabling a fast denormal FPU mode (x86 platforms supporting SSE2)
410        - minor assembly fix in x86 features detection (don't use the PIC
411          register, to avoid relocations in the text segment at runtime)
412        - POSIX callback functions of Thread.h are hidden
413    
414      * MIDI driver:
415        - dispatch bank select (MSB and LSB) messages
416    
417      * audio driver:
418        - the ALSA audio output driver parameters now reflect the correct
419          parameter value ranges for the respective selected sound card
420          (patch by Till Wimmer, a bit fixed and extended)
421    
422      * Gigasampler format engine:
423        - if a filter is used and EG2 finishes before EG1, let the voice
424          die when EG2 has finished (this fixes a problem with clicks and
425          voice starvation for some gigs)
426        - playback is no longer disabled during instrument loading
427        - all notes playing on a channel that changes its instrument keep
428          playing with the old instrument until they get a note off
429          command
430        - EG fix: a release value of zero could cause noises or crash
431        - handle MIDI coarse tuning messages (MIDI RPN #0 MSB #2 LSB)
432        - EG fine tuning: when attack is zero the EG starts at a level
433          above max sustain level, which means that there is a decay phase
434          even if sustain is 100%
435        - more EG fixes: the level could sometimes go below zero and cause
436          noises or crashes
437        - minor fix of EGDecay (patch by Toshi Nagata)
438        - fixed compiler error when --enable-override-filter-type was
439          supplied to the configure script (fixes #46)
440        - disk thread: queue sizes are now proportional to CONFIG_MAX_STREAMS
441          instead of a fix value
442        - behavior fix: on MIDI CC# 65 (portamento on / off), 126 (mono mode),
443          127 (solo mode) only kill voices if the respective mode really
444          changed
445    
446      * LSCP server:
447        - fixed compile time error for old Bison versions
448          (i.e. v1.28 found on MacOS 10.4, patch by Toshi Nagata)
449        - parser now supports extended ASCII character set
450          (up to ASCII code 255, i.e. includes now umlauts and accents)
451        - filename arguments in LSCP commands now allow to use escape
452          sequences, that is directly literal as one of: \', \", \\, \n, \r,
453          \f, \t, \v, or as octal ASCII code value like \132, or as hex ASCII
454          code value like \xf2) (fixes bug #24)
455        - the following LSCP commands now also support escape sequences for at
456          least one of their text-based parameters (i.e. name, description):
457          "ADD MIDI_INSTRUMENT_MAP", "MAP MIDI_INSTRUMENT",
458          "SET MIDI_INSTRUMENT_MAP NAME", "SET FX_SEND NAME", "CREATE FX_SEND",
459          "SET DB_INSTRUMENT_DIRECTORY NAME",
460          "SET DB_INSTRUMENT_DIRECTORY DESCRIPTION", "SET DB_INSTRUMENT NAME",
461          "SET DB_INSTRUMENT DESCRIPTION", "FIND DB_INSTRUMENTS",
462          "FIND DB_INSTRUMENT_DIRECTORIES"
463        - returns verbose syntax errors (line and column where syntax error
464          occured, the unexpected character and the actually expected, possible
465          character(s), the latter only if less than 5 possibilities)
466        - made sure that LSCP syntax is not affected by gigedit locale
467          settings
468        - bugfix regarding strings parameter lists: all comma separated lists
469          of strings were treated as being one string containing commas
470          (fixes #57)
471    
472      * Bug fixes:
473        - fixed crash occurring on certain LSCP scripts (Bug 39)
474        - another thread safety fix for lscp "load engine" and "set
475          channel audio output device"
476        - fixed a crash which occurs when reassigning the same engine
477          on a sampler channel with connected MIDI device
478        - fixed a crash which occurs when changing the number of ports of a MIDI
479          device connected to a sampler channel to number less then or equal
480          to the index of the port to which the sampler channel is connected.
481        - The previous bindings were not been disconnected when altering
482          the ALSA_SEQ_BINDINGS parameter. Introduced a NONE keyword for
483          unsubscribing from all bindings (e.g. ALSA_SEQ_BINDINGS=NONE).
484        - The active stream/voice count statistic was incorrect.
485        - notification events were not been sent for some sampler
486          channel changes
487        - added default min and max values to restrict the number of allowed
488          audio output channels and MIDI input ports
489        - the connection to the PCM interface is now closed when destroying
490          an audio output device
491        - files with slash in their path or filename could not be loaded
492    
493      * test cases:
494        - updated and fixed (haven't been touched in a while)
495    
496    Version 0.4.0 (24 November 2006)
497    
498      * packaging changes:
499        - changed deprecated copyright attribute to license; added ldconfig
500          to post-(un)install steps; added devel package for liblinuxsampler;
501          to linuxsampler.spec (RPM)
502        - install necessary development header files for allowing 3rd party
503          applications to link against liblinuxsampler
504        - liblinuxsampler's API documentation can be generated with 'make docs'
505          (Doxygen required)
506        - added benchmark to automatically detect the best triangle LFO
507          implementation (currently either an integer math solution or a
508          di-harmonic approximation), automatic detection can be overriden
509          with --enable-signed-triang-algo=x and --enable-unsigned-triang-algo=x
510          configure script argument though (mandatory for cross-compilation)
511        - do not automatically pick optimized gcc flags if the user already
512          provided some on his own (as CXXFLAGS)
513        - added compile time option to disable processing of All-Notes-Off MIDI
514          messages
515        - added compile time options to allow disabling the various audio and
516          MIDI drivers
517        - fixed automatic GCC CPU switch detection on PPC
518          (patch by Ebrahim Mayat)
519    
520      * Gigasampler format engine:
521        - extensive synthesis optimization
522          (reimplementation of EGs and LFO(s), removed synthesis parameter
523          prerendering and the synthesis parameter matrix in general, splitting
524          each audio fragment into subfragments now where each subfragment uses
525          constant pitch and filter coefficients. The volume coefficient is
526          linearly interpolated inside a subfragment, unless
527          --disable-interpolate-volume is set.)
528        - fine tuning of the EG modulation parameters
529        - improved filter cutoff calculation by adding support for the
530          following gig parameters: Cutoff freq (used when no cutoff
531          controller is defined), Control invert, Minimum cutoff, Velocity
532          curve and Velocity range. The keyboard tracking now scales
533          cutoff frequency instead of resonance.
534        - added support for gig parameter Resonance.
535        - fixed bug in sysex handling (patch by Juan Linietsky)
536        - added global volume attenuation of -9 dB (0.35f) to prevent clipping
537          which can be overridden with --enable-global-attenuation
538        - EG fixes: made the length of "attack hold" stage more
539          accurate. Release stage can now start before attack stage
540          ends. Cancel release didn't work when sustain was zero. Attack
541          time now has a minimal value to prevent clicks.
542        - fixed pitch changes larger than one octave
543        - fixed EG3 (pitch envelope) synthesis which was neutral all the time
544        - implemented portamento mode and solo mode (a.k.a 'mono mode'):
545          all modes can be altered via standard GM messages, that is CC5 for
546          altering portamento time, CC65 for enabling / disabling portamento
547          mode, CC126 for enabling solo mode and CC127 for disabling solo mode
548        - fine tuning of the curves for volume (CC7), pan (CC10 and gig
549          parameter) and crossfade
550        - added support for the "attenuation controller threshold" gig
551          parameter
552        - added smoothing of volume changes caused by control change
553          messages
554        - sample loop parameters are now taken from the DimensionRegion
555          instead of the wave chunk
556        - fixed keyswitching for v3 gigs with a number of keyswitch splits
557          not equal to a power of two
558        - reimplementation of the filter algorithm. The new filter is more
559          accurate and supports all gig filter types, including bandreject
560          and lowpass turbo.
561        - real support for 24 bit samples - samples are not truncated to
562          16 bits anymore
563        - support for aftertouch (channel pressure, not polyphonic
564          aftertouch)
565        - LFO1 behaviour fixed (dampening from max volume instead of
566          amplifying from 0)
567    
568      * LSCP server:
569        - fixed application exit on broken pipe error (fixes bug #20)
570        - fixed the notification messages delay due to lack of
571          network activity (fixes bug #26)
572        - fixed parser bug which occured on space(s) within device parameters
573          (e.g. "SET AUDIO_OUTPUT_CHANNEL_PARAMETER 0 0 SOMEPARAM='foo bar'")
574    
575      * audio driver:
576        - added aRts audio output driver (by no means RT safe)
577    
578      * MIDI driver:
579        - fixed legacy sysex code which caused dispatching of MIDI SysEx
580          messages several times instead of once
581        - API extension for MIDI drivers which already supply exact time stamps
582          for events (i.e. for offline rendering based MIDI drivers)
583        - added checks for bad MIDI data
584    
585      * linuxsampler application:
586        - show available sampler engine types on startup
587    
588      * general changes:
589        - support for muting sampler channels and solo mode of the same, two new
590          LSCP commands ("SET CHANNEL MUTE" and "SET CHANNEL SOLO") and two new
591          fields ("MUTE" and "SOLO") for command "GET CHANNEL INFO" were
592          introduced for this, the behavior is the same like on a mixer console
593          (patch by Grigor Iliev, a bit adjusted). Also added configure option
594          --enable-process-muted-channels which can be used to enable the
595          processing of muted channels.
596        - support for sostenuto pedal
597        - support for monitoring the total number of active voices
598          (new LSCP commands: GET TOTAL_VOICE_COUNT, GET TOTAL_VOICE_COUNT_MAX,
599          SUBSCRIBE TOTAL_VOICE_COUNT, UNSUBSCRIBE TOTAL_VOICE_COUNT)
600        - fixed some memory management errors
601        - fixed some concurrency problems that could lead to crashes when
602          LSCP commands were executed
603        - fixed crash when instrument loading failed previously on the same
604          sampler channel (fixes bug #36)
605    
606    Version 0.3.3 (15 July 2005)
607    
608      * packaging changes:
609        - fixed compilation with gcc 4.0
610    
611      * Gigasampler format engine:
612        - LFO preprocessing was performed even though the respective LFO was
613          disabled by the instrument patch (minor efficiency fix)
614        - if period time of chosen audio device is too small (< MIN_RELEASE_TIME)
615          for volume ramp downs in the same fragment (needed for current voice
616          stealing implementation) then simply inform the user with a warning
617          about possible click sounds and reduce the volume ramp down
618          appropriately instead of cancelling the audio device connection
619    
620  Version 0.3.2 (24 June 2005)  Version 0.3.2 (24 June 2005)
621    
622    * packaging changes:    * packaging changes:

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