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revision 660 by schoenebeck, Fri Jun 17 19:49:30 2005 UTC revision 2047 by schoenebeck, Mon Jan 11 21:14:14 2010 UTC
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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        - command line option '--profile' is currently disabled, since the
7          respective profiling code is currently broken
8    
9      * Gigasampler format engine:
10        - implemented the "round robin keyboard" dimension
11        - fixed round robin and random dimensions for cases when number of
12          dimension zones is not a power of two
13        - made round robin use a counter for each region instead of each
14          key
15    
16      * SFZ format engine:
17        - Initial implementation (not usable yet)
18    
19      * SoundFont format engine:
20        - Initial implementation (not usable yet)
21    
22      * Host plugins:
23        - AU bugfix: failed to destroy its audio/MIDI devices
24        - Listen to all interfaces on Mac OS X (INADDR_ANY)
25        - VST bugfix: If the host called resume() before and after
26          changing sample rate or block size, the number of channels was
27          incorrectly set to two. This caused silence in Cubase 5.
28    
29      * MIDI driver:
30        - ALSA MIDI driver supports now "NAME" device parameter, for overriding
31          the ALSA sequencer client name
32    
33      * LSCP server:
34        - added support for sending MIDI CC messages via LSCP command
35          "SEND CHANNEL MIDI_DATA CC <sampler-chan> <ctrl> <val>"
36    
37      * Bug fixes:
38        - Fixed crash which may occur when MIDI key + transpose is out of range
39    
40    Version 1.0.0 (31 July 2009)
41    
42      * packaging changes:
43        - autoconf bugfix: the PKG_CONFIG variable wasn't initialized properly,
44          causing e.g. the libgig test to fail when
45          "./configure --disable-jack-driver" was used
46          (patch by Alexis Ballier)
47        - fixed compilation with gcc 4.3
48        - fixes for building on OS X (thanks to Ebrahim Mayat for testing)
49        - fixed configure so it detects x86_64 (#107)
50        - fixes for building with newer MinGW versions
51        - fix for building with bison 2.4 (#111)
52        - fixed building with libgig installed in a non-standard directory
53        - minor fix in configure for mmsystem.h detection on MinGW
54        - Windows: look for editor plugins and Fantasia using base
55          directory of liblinuxsampler dll (look in the same directory and one
56          directory above)
57        - configure script fix: removed unconditional use of SSE
58        - fixed building with sqlite installed in a non-standard directory
59        - when cross-compiling, don't try to create instruments.db
60        - fix for new mingw-w64 version, which has usleep
61    
62      * general changes:
63        - bugfix: on some POSIX systems instrument editor plugins refused to
64          load as we used a non-portable Linux specific struct field
65          (fixes bug #70, patch by Ronald Baljeu)
66        - fixed endless loop which occured when loading an instrument editor
67          plugin DLL on Windows systems failed
68        - fixed memory leaks that occurred when liblinuxsampler was unloaded
69        - optimized the SynchronizedConfig class so it doesn't wait
70          unnecessarily long after an update
71        - added support for notifying instrument editors on note-on / note-off
72          events (e.g. to highlight the pressed keys on the virtual keyboard
73          of gigedit)
74        - added support for triggering notes by instrument editors (see above)
75        - be verbose on DLL load errors (on Linux)
76        - fixed di-harmonic triangle LFO implementation (this LFO implementation
77          is only used by very few systems, most pick the int math
78          implementation, which is usually faster)
79        - fixes for audio drivers with varying buffer sizes
80        - experimental support for running LinuxSampler as a DSSI, LV2 and
81          VST plugin
82        - notification events for stream/voice count statistics are now sent
83          only when there are actual changes
84        - added memory ordering constraints to improve stability on
85          multi-core and multi-cpu systems
86        - maximum voices and disk streams can now be altered at runtime
87        - fixed CPU feature detection on x86_64 (maybe fixes #108)
88        - automatic stacktrace mechanism is now turned off by default and can
89          be switched on by command line option "--stacktrace" (the automatic
90          stacktrace mechanism seems to be broken on most systems at the moment)
91        - C++ API method InstrumentManager::LaunchInstrumentEditor() now returns
92          a pointer to the launched InstrumentEditor object
93        - added optional 3rd party user data parameter for following
94          liblinuxsampler C++ API methods: InstrumentEditor::Main(),
95          InstrumentEditor::Launch(),
96          InstrumentManager::LaunchInstrumentEditor()
97        - theoretical fix: made SynchronizedConfig follow C++0x memory
98          model more strictly
99        - fixes for using large audio device buffers
100        - Windows: add the installation directory to the DLL search path
101          when loading an editor plugin (solves problems with VST and
102          gigedit on systems with other GTK versions installed)
103    
104      * audio driver:
105        - removed the nonsense audio channel constraint (which was hard coded to
106          max. 100 audio channels) for most audio drivers
107        - JACK audio driver did not offer a device parameter "SAMPLERATE" as
108          opposed to the LSCP specs
109        - bugfix: the SAMPLERATE parameter of some drivers (e.g. JACK)
110          reflected the wrong value
111        - fixed a memory management bug in ASIO driver
112        - Makefile fix: JACK_CFLAGS wasn't used
113        - JACK: use jack_client_open instead of the deprecated
114          jack_client_new
115        - added (experimental) CoreAudio driver
116        - applied old fixes to the ASIO driver that were included in the
117          previous binary release but accidentally never committed to CVS
118          (fixes #117)
119        - fixes for ASIO on mingw-w64 (iasio wrapper is not needed on
120          win64)
121        - VST: added support for sample rate and buffer size changes
122        - VST: close editor (Fantasia) when the VST is removed
123        - VST: avoid opening Fantasia more than once for each VST instance
124        - VST: export main function as "main" on Linux too (fix for
125          energyXT)
126        - VST: changed number of output channels from one stereo to 16
127          stereo
128        - added channel routing, fxsends and midi maps to the settings
129          stored in the plugin state
130        - performance optimization of AudioChannel::MixTo() and
131          AudioChannel::CopyTo() methods using GCC vector exensions
132          (if available)
133        - ASIO fixes: avoid initializing the device twice, avoid throwing
134          exception when getting parameters from a disconnected device
135    
136      * MIDI driver:
137        - added JACK MIDI driver
138        - dispatch bank select as ordinary CC as well, the user might seriously
139          want to (mis)use it for some purpose ("fixed" in all current MIDI
140          input drivers: ALSA, CoreMIDI, JACK, MidiShare, MME)
141        - bugfix: pitch bend wasn't working with JackMidi, VST, LV2, MME,
142          CoreMidi or AU
143        - fixed mingw-w64 compilation error in MME driver
144        - made program change handling in MIDI thread real-time safe by
145          moving the logic to a non-RT thread
146        - fixed minor memory leak in ALSA driver
147    
148      * instruments database:
149        - avoid time consuming samples scanning when adding instruments
150          to the instruments database
151        - added support for handling lost files in the instruments database
152        - Implemented option for adding instruments in separate directories
153          in the instruments database
154          (patch by Chris Cherrett & Andrew Williams, a bit adjusted)
155        - work-around for missing fnmatch function on Windows to make
156          instrument database compilable
157        - added instrument database support on Windows
158          works with both standalone mode and VST plugin.
159          the instruments DB file is located in
160          %USERPROFILE%\.linuxsampler\instruments.db which allows different
161          databases for each windows user
162          if no DB is present it automatically creates the .linuxsampler subdir
163          and then creates an empty DB
164        - fixed recursive import, which was broken on Windows
165    
166      * Gigasampler format engine:
167        - fixed a memory leak that could happen when a channel was deleted
168          while notes were playing
169        - made it possible to load an instrument even if the audio thread
170          isn't running
171        - added partial support for the "Controller Triggered" MIDI rule,
172          enough for piano gigs with pedal noise samples
173        - minor fix: only mark FX sends as being modified if really the
174          respective FX send MIDI controller was used
175        - added support for GM global device volume SysEx message
176          (can be selected at compile time to either apply globally to the
177          whole sampler [default] or only to the sampler channels that are
178          connected to the respective MIDI input port the SysEx message arrived
179          on)
180        - bugfix: notes triggered at position 0 in the audio buffer were
181          sometimes wrongly killed in the same buffer, causing no sound to
182          be played
183        - added support for chromatic / drumkit mode Roland GS Sysex message
184          which is usally used to switch a part between chromatic sounds and
185          drumkit sounds (as opposed to their common default setting of MIDI
186          part 10 being a drumkit part and all other ones chromatic parts), in
187          LS however one can switch between the first 16 MIDI instrument maps
188          defined for the sampler
189        - made it possible to create multiple sample channels even if the
190          audio thread isn't running
191        - fixed crash when removing channel with active voices (#116)
192        - bugfix: on sample reference changes (instrument editor), only
193          un-cache the respective sample if it's really not used by any
194          sampler engine anymore
195        - re-cache samples in case they were changed by an instrument editor,
196          e.g. when a sample was added while playing (#82)
197        - fixed hanging notes which occured when note-off event had the exact
198          same time stamp as the voice's note-on event and occured both in the
199          same audio fragment cycle (fixes bug #112)
200        - added support for the "fine tune" and "pitch bend range"
201          instrument-level gig parameters
202        - fixed minor artifacts in pitch bend handling
203        - added support for GS Reset SysEx message
204        - allow gig files to use unlimited downward pitch shifting
205        - added a limit check for upward pitch shifting
206        - bugfix: sometimes, when playing a note twice fast, the second
207          note was silent
208        - fixed crash happening when a pitch bend event arrived at the
209          same time a new instrument was loading
210    
211      * LSCP server:
212        - added new LSCP event "CHANNEL_MIDI" which can be used by frontends to
213          react on MIDI data arriving on certain sampler channels (so far only
214          Note-On and Note-Off events are sent via this LSCP event)
215        - added new LSCP event "DEVICE_MIDI" which can be used by frontends to
216          react on MIDI data arriving on certain MIDI input devices (so far only
217          Note-On and Note-Off events are sent via this LSCP event)
218        - added new LSCP commands: FIND LOST DB_INSTRUMENT_FILES and
219          SET DB_INSTRUMENT FILE_PATH
220        - added new LSCP command: SEND CHANNEL MIDI_DATA which can be used by
221          frontends to send MIDI messages to specific sampler channel
222        - added two additional fields to GET FILE INSTRUMENT INFO command -
223          KEY_BINDINGS and KEYSWITCH_BINDINGS
224        - bugfix: the bank number provided by MIDI_INSTRUMENT_INFO notifications
225          was incorrect
226        - Optimized the retrieval of the MIDI instrument mappings
227        - added new LSCP command "SET VOICES" to globally alter the maximum
228          amount of voices, added new LSCP event "GLOBAL_INFO:VOICES" which will
229          be triggered respectively
230        - added new LSCP command "SET STREAMS" to globally alter the maximum
231          amount of disk streams, added new LSCP event "GLOBAL_INFO:STREAMS"
232          which will be triggered respectively
233        - bugfix: retry if "select" returns EINTR (this fixes a crash when
234          a gigedit file dialog is opened)
235        - close all connections when LSCPServer is deleted
236        - hard close of all sockets on exit
237        - bugfix: SET CHANNEL MIDI_INPUT_TYPE didn't work with the MME
238          driver
239    
240      * Bug fixes:
241        - fixed a crash which occurs when removing a sampler channel waiting
242          to start instrument loading after another channel
243        - fixed a crash which occurs when removing a sampler channel with
244          instrument loading in progress (bug #113)
245        - fixed termination caused by uncaught exception when adding MIDI
246          instrument with PERSISTENT load mode
247        - fixed possible iterator invalidations when resetting the sampler
248        - fixed memory leaks when issuing the following LSCP commands:
249          GET AUDIO_OUTPUT_DRIVER INFO
250          GET AUDIO_OUTPUT_DRIVER_PARAMETER INFO
251          GET MIDI_INPUT_DRIVER INFO
252          GET MIDI_INPUT_DRIVER_PARAMETER INFO
253        - fixed possible compilation error when sqlite is not present
254        - fixed orphaned pointers when setting maximum voices limit (bug #118)
255        - fixed crash when changing the audio output device of a sampler
256          channel with loaded instrument and start playing notes
257        - fixed endless loop in Engine::SuspendAll() (bug #120)
258        - fixed a low-level atomic load function that was broken on 64-bit
259          PowerPC, which probably could cause crashes on that platform
260        - fixed a memory management error which could cause a crash when a
261          plugin was unloaded
262        - bugfix: two private structs had the same name, which could cause
263          problems if the linker chose the wrong constructor
264        - fixed low-level ConditionServer usage bug that caused lockups on
265          Windows
266    
267    
268    Version 0.5.1 (6 December 2007)
269    
270      * packaging changes:
271        - added autoconf checks for pthread library
272        - added autoconf check for pthread bug found on certain NPTL-enabled
273          glibc versions (see Gentoo bug report #194076)
274        - added autoconf checks for MS Windows
275    
276      * general changes:
277        - bugfix: the thread used by an editor plugin didn't die when the
278          editor closed
279        - bugfix: Ringbuffer.h: fill_write_space_with_null() did not zero
280          out all the space. operator--() did not apply size_mask after
281          decrementing the read_ptr. DEFAULT_WRAP_ELEMENTS set to 0 in
282          order to avoid problems with the _NonVolatileReader functions.
283        - bugfix: Stream.h: added a missing divide by BytesPerSample in
284          GetWriteSpace(). Since this function is currently only used in
285          the stream's qsort() compare function, it didn't trigger any
286          bugs.
287        - Resampler.h, Synthesizer.h: cubic interpolation now works in
288          24bit mode too. Faster method to read 24bit words on little
289          endian machines (x86): replaced 3 byte reads + shifts with a 1
290          unaligned 32bit read and shift
291        - experimental support for MS Windows (MIDI input via MME, AUDIO
292          output via ASIO)
293        - made handling of SIGINT signal (Ctrl-C) a bit more robust
294        - support for monitoring the total number of active disk streams
295          (new LSCP commands: GET TOTAL_STREAM_COUNT,
296          SUBSCRIBE TOTAL_STREAM_COUNT, UNSUBSCRIBE TOTAL_STREAM_COUNT)
297    
298      * AUDIO driver:
299        - added Windows ASIO low latency audio driver
300    
301      * MIDI driver:
302        - added MME Windows MIDI driver
303    
304      * LSCP server:
305        - added support for Windows style path / filenames, however with
306          forward slash path separators instead of backslash
307          (i.e. "C:/foo/bar.gig")
308        - allow naughty liblscp to send non-string device parameters within
309          apostrophes as well
310        - added new LSCP commands: "GET FILE INSTRUMENTS <file>",
311          "LIST FILE INSTRUMENTS <file>" and
312          "GET FILE INSTRUMENT INFO <file> <index>" for retrieving informations
313          about an arbitrary instrument file on the system where the sampler is
314          running on
315    
316    Version 0.5.0 (15 October 2007)
317    
318      * packaging changes:
319        - config.h is not going to be installed along with liblinuxsampler's
320          API header files anymore
321        - only the API relevant header (and source) files will be exported to
322          the Doxygen API documentation (explicitly listed in Doxyfile.in)
323        - added completely new XCode project files for Mac OSX which is now
324          capable to execute our autoconf environment, thus no need anymore
325          to maintain the compile time configuration file (osx/version.h) for
326          OSX manually (patch by Toshi Nagata)
327        - fixed buggy boolean --enable-foo / --disable-foo configure script
328          parameters
329        - global.h now only covers global definitions that are needed for the
330          C++ API header files, all implementation internal global definitions
331          are now in global_private.h
332        - atomic.h is not exposed to the C++ API anymore
333        - no need to include config.h anymore for using LS's API header files
334        - fixed warnings in API doc generation
335    
336      * general changes:
337        - replaced the old, confusing MIDI program change mechanism by a
338          flexible MIDI instrument mapper which allows to map arbitrary
339          (MIDI bank, MIDI program) pairs with arbitrary
340          (engine type, instrument file, file index) triplets which will be
341          loaded on the respective channel when such MIDI program change
342          messages arrive, beside that, each entry allows to define a life-time
343          strategy for the instrument, so the user can define whether the
344          instrument should i.e. be permanently loaded (to be able to switch
345          quickly among sounds) or i.e. loaded just on demand when the
346          respective program change arrives (to safe RAM space), as well as a
347          global volume factor for each entry, so the user can adjust the volume
348          dynamic of his mapped instrument collection without having to modify
349          the instrument files, also one can manage arbitrary amount of such
350          MIDI instrument maps and assign each sampler channel individually
351          a certain map, so that i.e. separation of normal instruments and
352          drumkits is possible
353        - new notification events for tracking changes to audio/MIDI devices,
354          MIDI instrument maps, MIDI instruments, FX sends, global volume.
355        - sampler was limited to load max. 200 instruments in the background
356          due to a constant size RingBuffer FIFO which is now replaced by a
357          dynamic (unlimited) size std::list FIFO
358        - added FX sends, these allow to route audio signals to arbitrary audio
359          output channels for being processed by external effect processors
360          (i.e. jack-rack), the send levels are controllable via arbitrary MIDI
361          controllers
362        - global (sampler wide) volume can now be controlled at runtime
363        - Implemented new, improved notification system
364        - fixed compilation errors regarding OSX
365          (patch by Toshi Nagata)
366        - implemented instruments database
367        - added support for escape sequences to the instruments database
368        - added highly experimental support for on-the-fly instrument editing
369          within the sampler's process (by using instrument editor plugins),
370          you'll notice the new "Registered instrument editors:" message on
371          startup, added a new LSCP command:
372          "EDIT CHANNEL INSTRUMENT <sampler-channel>"
373          to spawn a matching instrument editor for the instrument on the
374          given sampler channel, the plugin path can be overridden at compile
375          time with ./configure --enable-plugin-dir=/some/dir
376        - added experimental code for synchronizing instrument editors hosted
377          in the sampler's process to safely edit instruments while playing
378          without a crash (hopefully) by either suspending single regions
379          wherever possible or if unavoidable whole engine(s)
380        - fixed several issues in fundamental "Thread" class: set scheduling
381          policy and priority on thread level, set a minimum stack size for
382          thread (TODO: a reasonable value yet to be tested), bugfix: non-RT
383          threads simply inherited properties of starting thread instead of
384          setting their own policy and priority
385        - minor fix in our automatic stack trace mechanism on crashes, the
386          main process did not wait for the stack trace process to finish
387          its output
388        - fixed some minor memory leaks
389        - reenabled assembly features support, at the moment only for
390          enabling a fast denormal FPU mode (x86 platforms supporting SSE2)
391        - minor assembly fix in x86 features detection (don't use the PIC
392          register, to avoid relocations in the text segment at runtime)
393        - POSIX callback functions of Thread.h are hidden
394    
395      * MIDI driver:
396        - dispatch bank select (MSB and LSB) messages
397    
398      * audio driver:
399        - the ALSA audio output driver parameters now reflect the correct
400          parameter value ranges for the respective selected sound card
401          (patch by Till Wimmer, a bit fixed and extended)
402    
403      * Gigasampler format engine:
404        - if a filter is used and EG2 finishes before EG1, let the voice
405          die when EG2 has finished (this fixes a problem with clicks and
406          voice starvation for some gigs)
407        - playback is no longer disabled during instrument loading
408        - all notes playing on a channel that changes its instrument keep
409          playing with the old instrument until they get a note off
410          command
411        - EG fix: a release value of zero could cause noises or crash
412        - handle MIDI coarse tuning messages (MIDI RPN #0 MSB #2 LSB)
413        - EG fine tuning: when attack is zero the EG starts at a level
414          above max sustain level, which means that there is a decay phase
415          even if sustain is 100%
416        - more EG fixes: the level could sometimes go below zero and cause
417          noises or crashes
418        - minor fix of EGDecay (patch by Toshi Nagata)
419        - fixed compiler error when --enable-override-filter-type was
420          supplied to the configure script (fixes #46)
421        - disk thread: queue sizes are now proportional to CONFIG_MAX_STREAMS
422          instead of a fix value
423        - behavior fix: on MIDI CC# 65 (portamento on / off), 126 (mono mode),
424          127 (solo mode) only kill voices if the respective mode really
425          changed
426    
427      * LSCP server:
428        - fixed compile time error for old Bison versions
429          (i.e. v1.28 found on MacOS 10.4, patch by Toshi Nagata)
430        - parser now supports extended ASCII character set
431          (up to ASCII code 255, i.e. includes now umlauts and accents)
432        - filename arguments in LSCP commands now allow to use escape
433          sequences, that is directly literal as one of: \', \", \\, \n, \r,
434          \f, \t, \v, or as octal ASCII code value like \132, or as hex ASCII
435          code value like \xf2) (fixes bug #24)
436        - the following LSCP commands now also support escape sequences for at
437          least one of their text-based parameters (i.e. name, description):
438          "ADD MIDI_INSTRUMENT_MAP", "MAP MIDI_INSTRUMENT",
439          "SET MIDI_INSTRUMENT_MAP NAME", "SET FX_SEND NAME", "CREATE FX_SEND",
440          "SET DB_INSTRUMENT_DIRECTORY NAME",
441          "SET DB_INSTRUMENT_DIRECTORY DESCRIPTION", "SET DB_INSTRUMENT NAME",
442          "SET DB_INSTRUMENT DESCRIPTION", "FIND DB_INSTRUMENTS",
443          "FIND DB_INSTRUMENT_DIRECTORIES"
444        - returns verbose syntax errors (line and column where syntax error
445          occured, the unexpected character and the actually expected, possible
446          character(s), the latter only if less than 5 possibilities)
447        - made sure that LSCP syntax is not affected by gigedit locale
448          settings
449        - bugfix regarding strings parameter lists: all comma separated lists
450          of strings were treated as being one string containing commas
451          (fixes #57)
452    
453      * Bug fixes:
454        - fixed crash occurring on certain LSCP scripts (Bug 39)
455        - another thread safety fix for lscp "load engine" and "set
456          channel audio output device"
457        - fixed a crash which occurs when reassigning the same engine
458          on a sampler channel with connected MIDI device
459        - fixed a crash which occurs when changing the number of ports of a MIDI
460          device connected to a sampler channel to number less then or equal
461          to the index of the port to which the sampler channel is connected.
462        - The previous bindings were not been disconnected when altering
463          the ALSA_SEQ_BINDINGS parameter. Introduced a NONE keyword for
464          unsubscribing from all bindings (e.g. ALSA_SEQ_BINDINGS=NONE).
465        - The active stream/voice count statistic was incorrect.
466        - notification events were not been sent for some sampler
467          channel changes
468        - added default min and max values to restrict the number of allowed
469          audio output channels and MIDI input ports
470        - the connection to the PCM interface is now closed when destroying
471          an audio output device
472        - files with slash in their path or filename could not be loaded
473    
474      * test cases:
475        - updated and fixed (haven't been touched in a while)
476    
477    Version 0.4.0 (24 November 2006)
478    
479      * packaging changes:
480        - changed deprecated copyright attribute to license; added ldconfig
481          to post-(un)install steps; added devel package for liblinuxsampler;
482          to linuxsampler.spec (RPM)
483        - install necessary development header files for allowing 3rd party
484          applications to link against liblinuxsampler
485        - liblinuxsampler's API documentation can be generated with 'make docs'
486          (Doxygen required)
487        - added benchmark to automatically detect the best triangle LFO
488          implementation (currently either an integer math solution or a
489          di-harmonic approximation), automatic detection can be overriden
490          with --enable-signed-triang-algo=x and --enable-unsigned-triang-algo=x
491          configure script argument though (mandatory for cross-compilation)
492        - do not automatically pick optimized gcc flags if the user already
493          provided some on his own (as CXXFLAGS)
494        - added compile time option to disable processing of All-Notes-Off MIDI
495          messages
496        - added compile time options to allow disabling the various audio and
497          MIDI drivers
498        - fixed automatic GCC CPU switch detection on PPC
499          (patch by Ebrahim Mayat)
500    
501      * Gigasampler format engine:
502        - extensive synthesis optimization
503          (reimplementation of EGs and LFO(s), removed synthesis parameter
504          prerendering and the synthesis parameter matrix in general, splitting
505          each audio fragment into subfragments now where each subfragment uses
506          constant pitch and filter coefficients. The volume coefficient is
507          linearly interpolated inside a subfragment, unless
508          --disable-interpolate-volume is set.)
509        - fine tuning of the EG modulation parameters
510        - improved filter cutoff calculation by adding support for the
511          following gig parameters: Cutoff freq (used when no cutoff
512          controller is defined), Control invert, Minimum cutoff, Velocity
513          curve and Velocity range. The keyboard tracking now scales
514          cutoff frequency instead of resonance.
515        - added support for gig parameter Resonance.
516        - fixed bug in sysex handling (patch by Juan Linietsky)
517        - added global volume attenuation of -9 dB (0.35f) to prevent clipping
518          which can be overridden with --enable-global-attenuation
519        - EG fixes: made the length of "attack hold" stage more
520          accurate. Release stage can now start before attack stage
521          ends. Cancel release didn't work when sustain was zero. Attack
522          time now has a minimal value to prevent clicks.
523        - fixed pitch changes larger than one octave
524        - fixed EG3 (pitch envelope) synthesis which was neutral all the time
525        - implemented portamento mode and solo mode (a.k.a 'mono mode'):
526          all modes can be altered via standard GM messages, that is CC5 for
527          altering portamento time, CC65 for enabling / disabling portamento
528          mode, CC126 for enabling solo mode and CC127 for disabling solo mode
529        - fine tuning of the curves for volume (CC7), pan (CC10 and gig
530          parameter) and crossfade
531        - added support for the "attenuation controller threshold" gig
532          parameter
533        - added smoothing of volume changes caused by control change
534          messages
535        - sample loop parameters are now taken from the DimensionRegion
536          instead of the wave chunk
537        - fixed keyswitching for v3 gigs with a number of keyswitch splits
538          not equal to a power of two
539        - reimplementation of the filter algorithm. The new filter is more
540          accurate and supports all gig filter types, including bandreject
541          and lowpass turbo.
542        - real support for 24 bit samples - samples are not truncated to
543          16 bits anymore
544        - support for aftertouch (channel pressure, not polyphonic
545          aftertouch)
546        - LFO1 behaviour fixed (dampening from max volume instead of
547          amplifying from 0)
548    
549      * LSCP server:
550        - fixed application exit on broken pipe error (fixes bug #20)
551        - fixed the notification messages delay due to lack of
552          network activity (fixes bug #26)
553        - fixed parser bug which occured on space(s) within device parameters
554          (e.g. "SET AUDIO_OUTPUT_CHANNEL_PARAMETER 0 0 SOMEPARAM='foo bar'")
555    
556      * audio driver:
557        - added aRts audio output driver (by no means RT safe)
558    
559      * MIDI driver:
560        - fixed legacy sysex code which caused dispatching of MIDI SysEx
561          messages several times instead of once
562        - API extension for MIDI drivers which already supply exact time stamps
563          for events (i.e. for offline rendering based MIDI drivers)
564        - added checks for bad MIDI data
565    
566      * linuxsampler application:
567        - show available sampler engine types on startup
568    
569      * general changes:
570        - support for muting sampler channels and solo mode of the same, two new
571          LSCP commands ("SET CHANNEL MUTE" and "SET CHANNEL SOLO") and two new
572          fields ("MUTE" and "SOLO") for command "GET CHANNEL INFO" were
573          introduced for this, the behavior is the same like on a mixer console
574          (patch by Grigor Iliev, a bit adjusted). Also added configure option
575          --enable-process-muted-channels which can be used to enable the
576          processing of muted channels.
577        - support for sostenuto pedal
578        - support for monitoring the total number of active voices
579          (new LSCP commands: GET TOTAL_VOICE_COUNT, GET TOTAL_VOICE_COUNT_MAX,
580          SUBSCRIBE TOTAL_VOICE_COUNT, UNSUBSCRIBE TOTAL_VOICE_COUNT)
581        - fixed some memory management errors
582        - fixed some concurrency problems that could lead to crashes when
583          LSCP commands were executed
584        - fixed crash when instrument loading failed previously on the same
585          sampler channel (fixes bug #36)
586    
587    Version 0.3.3 (15 July 2005)
588    
589      * packaging changes:
590        - fixed compilation with gcc 4.0
591    
592      * Gigasampler format engine:
593        - LFO preprocessing was performed even though the respective LFO was
594          disabled by the instrument patch (minor efficiency fix)
595        - if period time of chosen audio device is too small (< MIN_RELEASE_TIME)
596          for volume ramp downs in the same fragment (needed for current voice
597          stealing implementation) then simply inform the user with a warning
598          about possible click sounds and reduce the volume ramp down
599          appropriately instead of cancelling the audio device connection
600    
601    Version 0.3.2 (24 June 2005)
602    
603    * packaging changes:    * packaging changes:
604      - updated autotools build files to compile on OS X      - updated autotools build files to compile on OS X
605        (conditional compilation of CoreMIDI and MidiShare drivers)        (conditional compilation of CoreMIDI and MidiShare drivers)
# Line 15  Version CVS HEAD (?) Line 615  Version CVS HEAD (?)
615      - volume of release triggered samples now depends on note-on velocity,      - volume of release triggered samples now depends on note-on velocity,
616        note length and gig parameter "release trigger decay" instead of        note length and gig parameter "release trigger decay" instead of
617        note-off velocity.        note-off velocity.
618      - revised voice stealing (fixes crash caused by voice stealing)      - revised voice stealing
619          (fixes crash and endless loop caused by voice stealing)
620      - don't reset scale tuning on instrument or audio output device change      - don't reset scale tuning on instrument or audio output device change
621        - handle key group conflicts right at the beginning of each fragment
622          instead of when the respective voice is actually launched
623          (fixes undefined behavior if stolen voices belonged to a key group -
624          this case was followed by a "killed voice survived" error message)
625        - fixed minor issue with null/silence samples
626          (those stole voices even though they don't need a voice at all which
627          resulted in "voice stealing didn't work out" messages)
628        - don't reset volume, pan, pitch and MIDI controller values on
629          instrument or audio output device change
630    
631    * LSCP server:    * LSCP server:
632      - fixed some crashes (patch by Grigor Iliev, fixes #19)      - fixed some crashes (patch by Grigor Iliev, fixes #19)
633      - fixed LSCP event "CHANNEL_INFO" notification      - fixed LSCP event "CHANNEL_INFO" notification
634        (e.g. did not notify on volume changes)        (e.g. did not notify on volume changes or MIDI program change events)
635    
636      * linuxsampler application:
637        - added command line parameters --lscp-addr and --lscp-port to override
638          default IP address and port of LSCP server
639    
640  Version 0.3.1 (24 May 2005)  Version 0.3.1 (24 May 2005)
641    

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