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revision 775 by schoenebeck, Wed Sep 21 14:30:43 2005 UTC revision 1870 by persson, Sun Mar 22 16:53:01 2009 UTC
# Line 1  Line 1 
1  Version CVS HEAD (?)  Version CVS HEAD (?)
3    * packaging changes:    * packaging changes:
4        - autoconf bugfix: the PKG_CONFIG variable wasn't initialized properly,
5          causing e.g. the libgig test to fail when
6          "./configure --disable-jack-driver" was used
7          (patch by Alexis Ballier)
8        - fixed compilation with gcc 4.3
9        - fixes for building on OS X (thanks to Ebrahim Mayat for testing)
10        - fixed configure so it detects x86_64 (#107)
11        - fixes for building with newer MinGW versions
12        - fix for building with bison 2.4 (#111)
13        - fixed building with libgig installed in a non-standard directory
15      * general changes:
16        - bugfix: on some POSIX systems instrument editor plugins refused to
17          load as we used a non-portable Linux specific struct field
18          (fixes bug #70, patch by Ronald Baljeu)
19        - fixed endless loop which occured when loading an instrument editor
20          plugin DLL on Windows systems failed
21        - fixed memory leaks that occurred when liblinuxsampler was unloaded
22        - optimized the SynchronizedConfig class so it doesn't wait
23          unnecessarily long after an update
24        - added support for notifying instrument editors on note-on / note-off
25          events (e.g. to highlight the pressed keys on the virtual keyboard
26          of gigedit)
27        - added support for triggering notes by instrument editors (see above)
28        - be verbose on DLL load errors (on Linux)
29        - fixed di-harmonic triangle LFO implementation (this LFO implementation
30          is only used by very few systems, most pick the int math
31          implementation, which is usually faster)
32        - fixes for audio drivers with varying buffer sizes
33        - experimental support for running LinuxSampler as a DSSI, LV2 and
34          VST plugin
35        - notification events for stream/voice count statistics are now sent
36          only when there are actual changes
37        - added memory ordering constraints to improve stability on
38          multi-core and multi-cpu systems
39        - maximum voices and disk streams can now be altered at runtime
40        - fixed CPU feature detection on x86_64 (maybe fixes #108)
41        - automatic stacktrace mechanism is now turned off by default and can
42          be switched on by command line option "--stacktrace" (the automatic
43          stacktrace mechanism seems to be broken on most systems at the moment)
44        - C++ API method InstrumentManager::LaunchInstrumentEditor() now returns
45          a pointer to the launched InstrumentEditor object
47      * audio driver:
48        - removed the nonsense audio channel constraint (which was hard coded to
49          max. 100 audio channels) for most audio drivers
50        - JACK audio driver did not offer a device parameter "SAMPLERATE" as
51          opposed to the LSCP specs
52        - bugfix: the SAMPLERATE parameter of some drivers (e.g. JACK)
53          reflected the wrong value
54        - fixed a memory management bug in ASIO driver
55        - Makefile fix: JACK_CFLAGS wasn't used
56        - JACK: use jack_client_open instead of the deprecated
57          jack_client_new
58        - added (experimental) CoreAudio driver
60      * MIDI driver:
61        - added JACK MIDI driver
62        - dispatch bank select as ordinary CC as well, the user might seriously
63          want to (mis)use it for some purpose ("fixed" in all current MIDI
64          input drivers: ALSA, CoreMIDI, JACK, MidiShare, MME)
66      * instruments database:
67        - avoid time consuming samples scanning when adding instruments
68          to the instruments database
69        - added support for handling lost files in the instruments database
70        - Implemented option for adding instruments in separate directories
71          in the instruments database
72          (patch by Chris Cherrett & Andrew Williams, a bit adjusted)
74      * Gigasampler format engine:
75        - fixed a memory leak that could happen when a channel was deleted
76          while notes were playing
77        - made it possible to load an instrument even if the audio thread
78          isn't running
79        - added partial support for the "Controller Triggered" MIDI rule,
80          enough for piano gigs with pedal noise samples
81        - minor fix: only mark FX sends as being modified if really the
82          respective FX send MIDI controller was used
83        - added support for GM global device volume SysEx message
84          (can be selected at compile time to either apply globally to the
85          whole sampler [default] or only to the sampler channels that are
86          connected to the respective MIDI input port the SysEx message arrived
87          on)
88        - bugfix: notes triggered at position 0 in the audio buffer were
89          sometimes wrongly killed in the same buffer, causing no sound to
90          be played
91        - added support for chromatic / drumkit mode Roland GS Sysex message
92          which is usally used to switch a part between chromatic sounds and
93          drumkit sounds (as opposed to their common default setting of MIDI
94          part 10 being a drumkit part and all other ones chromatic parts), in
95          LS however one can switch between the first 16 MIDI instrument maps
96          defined for the sampler
97        - made it possible to create multiple sample channels even if the
98          audio thread isn't running
99        - fixed crash when removing channel with active voices (#116)
100        - bugfix: on sample reference changes (instrument editor), only
101          un-cache the respective sample if it's really not used by any
102          sampler engine anymore
103        - re-cache samples in case they were changed by an instrument editor,
104          e.g. when a sample was added while playing (#82)
105        - fixed hanging notes which occured when note-off event had the exact
106          same time stamp as the voice's note-on event and occured both in the
107          same audio fragment cycle (fixes bug #112)
108        - added support for the "fine tune" and "pitch bend range"
109          instrument-level gig parameters
110        - fixed minor artifacts in pitch bend handling
111        - added support for GS Reset SysEx message
112        - allow gig files to use unlimited downward pitch shifting
113        - added a limit check for upward pitch shifting
115      * LSCP server:
116        - added new LSCP event "CHANNEL_MIDI" which can be used by frontends to
117          react on MIDI data arriving on certain sampler channels (so far only
118          Note-On and Note-Off events are sent via this LSCP event)
119        - added new LSCP event "DEVICE_MIDI" which can be used by frontends to
120          react on MIDI data arriving on certain MIDI input devices (so far only
121          Note-On and Note-Off events are sent via this LSCP event)
122        - added new LSCP commands: FIND LOST DB_INSTRUMENT_FILES and
124        - added new LSCP command: SEND CHANNEL MIDI_DATA which can be used by
125          frontends to send MIDI messages to specific sampler channel
126        - added two additional fields to GET FILE INSTRUMENT INFO command -
128        - bugfix: the bank number provided by MIDI_INSTRUMENT_INFO notifications
129          was incorrect
130        - Optimized the retrieval of the MIDI instrument mappings
131        - added new LSCP command "SET VOICES" to globally alter the maximum
132          amount of voices, added new LSCP event "GLOBAL_INFO:VOICES" which will
133          be triggered respectively
134        - added new LSCP command "SET STREAMS" to globally alter the maximum
135          amount of disk streams, added new LSCP event "GLOBAL_INFO:STREAMS"
136          which will be triggered respectively
137        - bugfix: retry if "select" returns EINTR (this fixes a crash when
138          a gigedit file dialog is opened)
139        - close all connections when LSCPServer is deleted
141      * Bug fixes:
142        - fixed a crash which occurs when removing a sampler channel waiting
143          to start instrument loading after another channel
144        - fixed a crash which occurs when removing a sampler channel with
145          instrument loading in progress (bug #113)
146        - fixed termination caused by uncaught exception when adding MIDI
147          instrument with PERSISTENT load mode
148        - fixed possible iterator invalidations when resetting the sampler
149        - fixed memory leaks when issuing the following LSCP commands:
154        - fixed possible compilation error when sqlite is not present
155        - fixed orphaned pointers when setting maximum voices limit (bug #118)
156        - fixed crash when changing the audio output device of a sampler
157          channel with loaded instrument and start playing notes
158        - fixed endless loop in Engine::SuspendAll() (bug #120)
159        - fixed a low-level atomic load function that was broken on 64-bit
160          PowerPC, which probably could cause crashes on that platform
163    Version 0.5.1 (6 December 2007)
165      * packaging changes:
166        - added autoconf checks for pthread library
167        - added autoconf check for pthread bug found on certain NPTL-enabled
168          glibc versions (see Gentoo bug report #194076)
169        - added autoconf checks for MS Windows
171      * general changes:
172        - bugfix: the thread used by an editor plugin didn't die when the
173          editor closed
174        - bugfix: Ringbuffer.h: fill_write_space_with_null() did not zero
175          out all the space. operator--() did not apply size_mask after
176          decrementing the read_ptr. DEFAULT_WRAP_ELEMENTS set to 0 in
177          order to avoid problems with the _NonVolatileReader functions.
178        - bugfix: Stream.h: added a missing divide by BytesPerSample in
179          GetWriteSpace(). Since this function is currently only used in
180          the stream's qsort() compare function, it didn't trigger any
181          bugs.
182        - Resampler.h, Synthesizer.h: cubic interpolation now works in
183          24bit mode too. Faster method to read 24bit words on little
184          endian machines (x86): replaced 3 byte reads + shifts with a 1
185          unaligned 32bit read and shift
186        - experimental support for MS Windows (MIDI input via MME, AUDIO
187          output via ASIO)
188        - made handling of SIGINT signal (Ctrl-C) a bit more robust
189        - support for monitoring the total number of active disk streams
190          (new LSCP commands: GET TOTAL_STREAM_COUNT,
193      * AUDIO driver:
194        - added Windows ASIO low latency audio driver
196      * MIDI driver:
197        - added MME Windows MIDI driver
199      * LSCP server:
200        - added support for Windows style path / filenames, however with
201          forward slash path separators instead of backslash
202          (i.e. "C:/foo/bar.gig")
203        - allow naughty liblscp to send non-string device parameters within
204          apostrophes as well
205        - added new LSCP commands: "GET FILE INSTRUMENTS <file>",
206          "LIST FILE INSTRUMENTS <file>" and
207          "GET FILE INSTRUMENT INFO <file> <index>" for retrieving informations
208          about an arbitrary instrument file on the system where the sampler is
209          running on
211    Version 0.5.0 (15 October 2007)
213      * packaging changes:
214        - config.h is not going to be installed along with liblinuxsampler's
215          API header files anymore
216        - only the API relevant header (and source) files will be exported to
217          the Doxygen API documentation (explicitly listed in Doxyfile.in)
218        - added completely new XCode project files for Mac OSX which is now
219          capable to execute our autoconf environment, thus no need anymore
220          to maintain the compile time configuration file (osx/version.h) for
221          OSX manually (patch by Toshi Nagata)
222        - fixed buggy boolean --enable-foo / --disable-foo configure script
223          parameters
224        - global.h now only covers global definitions that are needed for the
225          C++ API header files, all implementation internal global definitions
226          are now in global_private.h
227        - atomic.h is not exposed to the C++ API anymore
228        - no need to include config.h anymore for using LS's API header files
229        - fixed warnings in API doc generation
231      * general changes:
232        - replaced the old, confusing MIDI program change mechanism by a
233          flexible MIDI instrument mapper which allows to map arbitrary
234          (MIDI bank, MIDI program) pairs with arbitrary
235          (engine type, instrument file, file index) triplets which will be
236          loaded on the respective channel when such MIDI program change
237          messages arrive, beside that, each entry allows to define a life-time
238          strategy for the instrument, so the user can define whether the
239          instrument should i.e. be permanently loaded (to be able to switch
240          quickly among sounds) or i.e. loaded just on demand when the
241          respective program change arrives (to safe RAM space), as well as a
242          global volume factor for each entry, so the user can adjust the volume
243          dynamic of his mapped instrument collection without having to modify
244          the instrument files, also one can manage arbitrary amount of such
245          MIDI instrument maps and assign each sampler channel individually
246          a certain map, so that i.e. separation of normal instruments and
247          drumkits is possible
248        - new notification events for tracking changes to audio/MIDI devices,
249          MIDI instrument maps, MIDI instruments, FX sends, global volume.
250        - sampler was limited to load max. 200 instruments in the background
251          due to a constant size RingBuffer FIFO which is now replaced by a
252          dynamic (unlimited) size std::list FIFO
253        - added FX sends, these allow to route audio signals to arbitrary audio
254          output channels for being processed by external effect processors
255          (i.e. jack-rack), the send levels are controllable via arbitrary MIDI
256          controllers
257        - global (sampler wide) volume can now be controlled at runtime
258        - Implemented new, improved notification system
259        - fixed compilation errors regarding OSX
260          (patch by Toshi Nagata)
261        - implemented instruments database
262        - added support for escape sequences to the instruments database
263        - added highly experimental support for on-the-fly instrument editing
264          within the sampler's process (by using instrument editor plugins),
265          you'll notice the new "Registered instrument editors:" message on
266          startup, added a new LSCP command:
267          "EDIT CHANNEL INSTRUMENT <sampler-channel>"
268          to spawn a matching instrument editor for the instrument on the
269          given sampler channel, the plugin path can be overridden at compile
270          time with ./configure --enable-plugin-dir=/some/dir
271        - added experimental code for synchronizing instrument editors hosted
272          in the sampler's process to safely edit instruments while playing
273          without a crash (hopefully) by either suspending single regions
274          wherever possible or if unavoidable whole engine(s)
275        - fixed several issues in fundamental "Thread" class: set scheduling
276          policy and priority on thread level, set a minimum stack size for
277          thread (TODO: a reasonable value yet to be tested), bugfix: non-RT
278          threads simply inherited properties of starting thread instead of
279          setting their own policy and priority
280        - minor fix in our automatic stack trace mechanism on crashes, the
281          main process did not wait for the stack trace process to finish
282          its output
283        - fixed some minor memory leaks
284        - reenabled assembly features support, at the moment only for
285          enabling a fast denormal FPU mode (x86 platforms supporting SSE2)
286        - minor assembly fix in x86 features detection (don't use the PIC
287          register, to avoid relocations in the text segment at runtime)
288        - POSIX callback functions of Thread.h are hidden
290      * MIDI driver:
291        - dispatch bank select (MSB and LSB) messages
293      * audio driver:
294        - the ALSA audio output driver parameters now reflect the correct
295          parameter value ranges for the respective selected sound card
296          (patch by Till Wimmer, a bit fixed and extended)
298      * Gigasampler format engine:
299        - if a filter is used and EG2 finishes before EG1, let the voice
300          die when EG2 has finished (this fixes a problem with clicks and
301          voice starvation for some gigs)
302        - playback is no longer disabled during instrument loading
303        - all notes playing on a channel that changes its instrument keep
304          playing with the old instrument until they get a note off
305          command
306        - EG fix: a release value of zero could cause noises or crash
307        - handle MIDI coarse tuning messages (MIDI RPN #0 MSB #2 LSB)
308        - EG fine tuning: when attack is zero the EG starts at a level
309          above max sustain level, which means that there is a decay phase
310          even if sustain is 100%
311        - more EG fixes: the level could sometimes go below zero and cause
312          noises or crashes
313        - minor fix of EGDecay (patch by Toshi Nagata)
314        - fixed compiler error when --enable-override-filter-type was
315          supplied to the configure script (fixes #46)
316        - disk thread: queue sizes are now proportional to CONFIG_MAX_STREAMS
317          instead of a fix value
318        - behavior fix: on MIDI CC# 65 (portamento on / off), 126 (mono mode),
319          127 (solo mode) only kill voices if the respective mode really
320          changed
322      * LSCP server:
323        - fixed compile time error for old Bison versions
324          (i.e. v1.28 found on MacOS 10.4, patch by Toshi Nagata)
325        - parser now supports extended ASCII character set
326          (up to ASCII code 255, i.e. includes now umlauts and accents)
327        - filename arguments in LSCP commands now allow to use escape
328          sequences, that is directly literal as one of: \', \", \\, \n, \r,
329          \f, \t, \v, or as octal ASCII code value like \132, or as hex ASCII
330          code value like \xf2) (fixes bug #24)
331        - the following LSCP commands now also support escape sequences for at
332          least one of their text-based parameters (i.e. name, description):
339        - returns verbose syntax errors (line and column where syntax error
340          occured, the unexpected character and the actually expected, possible
341          character(s), the latter only if less than 5 possibilities)
342        - made sure that LSCP syntax is not affected by gigedit locale
343          settings
344        - bugfix regarding strings parameter lists: all comma separated lists
345          of strings were treated as being one string containing commas
346          (fixes #57)
348      * Bug fixes:
349        - fixed crash occurring on certain LSCP scripts (Bug 39)
350        - another thread safety fix for lscp "load engine" and "set
351          channel audio output device"
352        - fixed a crash which occurs when reassigning the same engine
353          on a sampler channel with connected MIDI device
354        - fixed a crash which occurs when changing the number of ports of a MIDI
355          device connected to a sampler channel to number less then or equal
356          to the index of the port to which the sampler channel is connected.
357        - The previous bindings were not been disconnected when altering
358          the ALSA_SEQ_BINDINGS parameter. Introduced a NONE keyword for
359          unsubscribing from all bindings (e.g. ALSA_SEQ_BINDINGS=NONE).
360        - The active stream/voice count statistic was incorrect.
361        - notification events were not been sent for some sampler
362          channel changes
363        - added default min and max values to restrict the number of allowed
364          audio output channels and MIDI input ports
365        - the connection to the PCM interface is now closed when destroying
366          an audio output device
367        - files with slash in their path or filename could not be loaded
369      * test cases:
370        - updated and fixed (haven't been touched in a while)
372    Version 0.4.0 (24 November 2006)
374      * packaging changes:
375        - changed deprecated copyright attribute to license; added ldconfig
376          to post-(un)install steps; added devel package for liblinuxsampler;
377          to linuxsampler.spec (RPM)
378      - install necessary development header files for allowing 3rd party      - install necessary development header files for allowing 3rd party
379        applications to link against liblinuxsampler        applications to link against liblinuxsampler
380      - liblinuxsampler's API documentation can be generated with 'make docs'      - liblinuxsampler's API documentation can be generated with 'make docs'
# Line 10  Version CVS HEAD (?) Line 384  Version CVS HEAD (?)
384        di-harmonic approximation), automatic detection can be overriden        di-harmonic approximation), automatic detection can be overriden
385        with --enable-signed-triang-algo=x and --enable-unsigned-triang-algo=x        with --enable-signed-triang-algo=x and --enable-unsigned-triang-algo=x
386        configure script argument though (mandatory for cross-compilation)        configure script argument though (mandatory for cross-compilation)
387        - do not automatically pick optimized gcc flags if the user already
388          provided some on his own (as CXXFLAGS)
389        - added compile time option to disable processing of All-Notes-Off MIDI
390          messages
391        - added compile time options to allow disabling the various audio and
392          MIDI drivers
393        - fixed automatic GCC CPU switch detection on PPC
394          (patch by Ebrahim Mayat)
396    * Gigasampler format engine:    * Gigasampler format engine:
397      - extensive synthesis optimization      - extensive synthesis optimization
398        (reimplementation of EGs and LFO(s), removed synthesis parameter        (reimplementation of EGs and LFO(s), removed synthesis parameter
399        prerendering and the synthesis parameter matrix in general, splitting        prerendering and the synthesis parameter matrix in general, splitting
400        each audio fragment into subfragments now where each subfragment uses        each audio fragment into subfragments now where each subfragment uses
401        constant synthesis parameters - that is volume, pitch and filter        constant pitch and filter coefficients. The volume coefficient is
402        coefficients)        linearly interpolated inside a subfragment, unless
403          --disable-interpolate-volume is set.)
404      - fine tuning of the EG modulation parameters      - fine tuning of the EG modulation parameters
405      - improved filter cutoff calculation by adding support for the      - improved filter cutoff calculation by adding support for the
406        following gig parameters: Cutoff freq (used when no cutoff        following gig parameters: Cutoff freq (used when no cutoff
407        controller is defined), Control invert, Minimum cutoff, Velocity        controller is defined), Control invert, Minimum cutoff, Velocity
408        curve and Velocity range. The keyboard tracking now also scales        curve and Velocity range. The keyboard tracking now scales
409        cutoff frequency, not just resonance.        cutoff frequency instead of resonance.
410        - added support for gig parameter Resonance.
411      - fixed bug in sysex handling (patch by Juan Linietsky)      - fixed bug in sysex handling (patch by Juan Linietsky)
412        - added global volume attenuation of -9 dB (0.35f) to prevent clipping
413          which can be overridden with --enable-global-attenuation
414        - EG fixes: made the length of "attack hold" stage more
415          accurate. Release stage can now start before attack stage
416          ends. Cancel release didn't work when sustain was zero. Attack
417          time now has a minimal value to prevent clicks.
418        - fixed pitch changes larger than one octave
419        - fixed EG3 (pitch envelope) synthesis which was neutral all the time
420        - implemented portamento mode and solo mode (a.k.a 'mono mode'):
421          all modes can be altered via standard GM messages, that is CC5 for
422          altering portamento time, CC65 for enabling / disabling portamento
423          mode, CC126 for enabling solo mode and CC127 for disabling solo mode
424        - fine tuning of the curves for volume (CC7), pan (CC10 and gig
425          parameter) and crossfade
426        - added support for the "attenuation controller threshold" gig
427          parameter
428        - added smoothing of volume changes caused by control change
429          messages
430        - sample loop parameters are now taken from the DimensionRegion
431          instead of the wave chunk
432        - fixed keyswitching for v3 gigs with a number of keyswitch splits
433          not equal to a power of two
434        - reimplementation of the filter algorithm. The new filter is more
435          accurate and supports all gig filter types, including bandreject
436          and lowpass turbo.
437        - real support for 24 bit samples - samples are not truncated to
438          16 bits anymore
439        - support for aftertouch (channel pressure, not polyphonic
440          aftertouch)
441        - LFO1 behaviour fixed (dampening from max volume instead of
442          amplifying from 0)
444    * LSCP server:    * LSCP server:
445      - fixed application exit on broken pipe error (fixes bug #20)      - fixed application exit on broken pipe error (fixes bug #20)
446        - fixed the notification messages delay due to lack of
447          network activity (fixes bug #26)
448        - fixed parser bug which occured on space(s) within device parameters
449          (e.g. "SET AUDIO_OUTPUT_CHANNEL_PARAMETER 0 0 SOMEPARAM='foo bar'")
451      * audio driver:
452        - added aRts audio output driver (by no means RT safe)
454    * MIDI driver:    * MIDI driver:
455      - fixed legacy sysex code which caused dispatching of MIDI SysEx      - fixed legacy sysex code which caused dispatching of MIDI SysEx
456        messages several times instead of once        messages several times instead of once
457        - API extension for MIDI drivers which already supply exact time stamps
458          for events (i.e. for offline rendering based MIDI drivers)
459        - added checks for bad MIDI data
461      * linuxsampler application:
462        - show available sampler engine types on startup
464    * general changes:    * general changes:
465      - support for muting sampler channels and solo mode of the same, two new      - support for muting sampler channels and solo mode of the same, two new
# Line 41  Version CVS HEAD (?) Line 469  Version CVS HEAD (?)
469        (patch by Grigor Iliev, a bit adjusted). Also added configure option        (patch by Grigor Iliev, a bit adjusted). Also added configure option
470        --enable-process-muted-channels which can be used to enable the        --enable-process-muted-channels which can be used to enable the
471        processing of muted channels.        processing of muted channels.
472        - support for sostenuto pedal
473        - support for monitoring the total number of active voices
476        - fixed some memory management errors
477        - fixed some concurrency problems that could lead to crashes when
478          LSCP commands were executed
479        - fixed crash when instrument loading failed previously on the same
480          sampler channel (fixes bug #36)
482  Version 0.3.3 (15 July 2005)  Version 0.3.3 (15 July 2005)

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