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revision 668 by schoenebeck, Mon Jun 20 15:30:47 2005 UTC revision 1800 by schoenebeck, Sun Dec 7 01:26:46 2008 UTC
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1  Version CVS HEAD (?)  Version CVS HEAD (?)
2    
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    
12      * general changes:
13        - bugfix: on some POSIX systems instrument editor plugins refused to
14          load as we used a non-portable Linux specific struct field
15          (fixes bug #70, patch by Ronald Baljeu)
16        - fixed endless loop which occured when loading an instrument editor
17          plugin DLL on Windows systems failed
18        - fixed memory leaks that occurred when liblinuxsampler was unloaded
19        - optimized the SynchronizedConfig class so it doesn't wait
20          unnecessarily long after an update
21        - added support for notifying instrument editors on note-on / note-off
22          events (e.g. to highlight the pressed keys on the virtual keyboard
23          of gigedit)
24        - added support for triggering notes by instrument editors (see above)
25        - be verbose on DLL load errors (on Linux)
26        - fixed di-harmonic triangle LFO implementation (this LFO implementation
27          is only used by very few systems, most pick the int math
28          implementation, which is usually faster)
29        - fixes for audio drivers with varying buffer sizes
30        - experimental support for running LinuxSampler as a DSSI, LV2 and
31          VST plugin
32        - notification events for stream/voice count statistics are now sent
33          only when there are actual changes
34        - added memory ordering constraints to improve stability on
35          multi-core and multi-cpu systems
36        - maximum voices and disk streams can now be altered at runtime
37    
38      * audio driver:
39        - removed the nonsense audio channel constraint (which was hard coded to
40          max. 100 audio channels) for most audio drivers
41        - JACK audio driver did not offer a device parameter "SAMPLERATE" as
42          opposed to the LSCP specs
43        - bugfix: the SAMPLERATE parameter of some drivers (e.g. JACK)
44          reflected the wrong value
45        - fixed a memory management bug in ASIO driver
46        - Makefile fix: JACK_CFLAGS wasn't used
47        - JACK: use jack_client_open instead of the deprecated
48          jack_client_new
49    
50      * MIDI driver:
51        - added JACK MIDI driver
52        - dispatch bank select as ordinary CC as well, the user might seriously
53          want to (mis)use it for some purpose ("fixed" in all current MIDI
54          input drivers: ALSA, CoreMIDI, JACK, MidiShare, MME)
55    
56      * instruments database:
57        - avoid time consuming samples scanning when adding instruments
58          to the instruments database
59        - added support for handling lost files in the instruments database
60        - Implemented option for adding instruments in separate directories
61          in the instruments database
62          (patch by Chris Cherrett & Andrew Williams, a bit adjusted)
63    
64      * Gigasampler format engine:
65        - fixed a memory leak that could happen when a channel was deleted
66          while notes were playing
67        - made it possible to load an instrument even if the audio thread
68          isn't running
69        - added partial support for the "Controller Triggered" MIDI rule,
70          enough for piano gigs with pedal noise samples
71        - minor fix: only mark FX sends as being modified if really the
72          respective FX send MIDI controller was used
73        - added support for GM global device volume SysEx message
74          (can be selected at compile time to either apply globally to the
75          whole sampler [default] or only to the sampler channels that are
76          connected to the respective MIDI input port the SysEx message arrived
77          on)
78        - bugfix: notes triggered at position 0 in the audio buffer were
79          sometimes wrongly killed in the same buffer, causing no sound to
80          be played
81        - added support for chromatic / drumkit mode Roland GS Sysex message
82          which is usally used to switch a part between chromatic sounds and
83          drumkit sounds (as opposed to their common default setting of MIDI
84          part 10 being a drumkit part and all other ones chromatic parts), in
85          LS however one can switch between the first 16 MIDI instrument maps
86          defined for the sampler
87        - made it possible to create multiple sample channels even if the
88          audio thread isn't running
89    
90      * LSCP server:
91        - added new LSCP event "CHANNEL_MIDI" which can be used by frontends to
92          react on MIDI data arriving on certain sampler channels (so far only
93          Note-On and Note-Off events are sent via this LSCP event)
94        - added new LSCP event "DEVICE_MIDI" which can be used by frontends to
95          react on MIDI data arriving on certain MIDI input devices (so far only
96          Note-On and Note-Off events are sent via this LSCP event)
97        - added new LSCP commands: FIND LOST DB_INSTRUMENT_FILES and
98          SET DB_INSTRUMENT FILE_PATH
99        - added new LSCP command: SEND CHANNEL MIDI_DATA which can be used by
100          frontends to send MIDI messages to specific sampler channel
101        - added two additional fields to GET FILE INSTRUMENT INFO command -
102          KEY_BINDINGS and KEYSWITCH_BINDINGS
103        - bugfix: the bank number provided by MIDI_INSTRUMENT_INFO notifications
104          was incorrect
105        - Optimized the retrieval of the MIDI instrument mappings
106        - added new LSCP command "SET VOICES" to globally alter the maximum
107          amount of voices, added new LSCP event "GLOBAL_INFO:VOICES" which will
108          be triggered respectively
109        - added new LSCP command "SET STREAMS" to globally alter the maximum
110          amount of disk streams, added new LSCP event "GLOBAL_INFO:STREAMS"
111          which will be triggered respectively
112    
113      * Bug fixes:
114        - fixed a crash which occurs when removing a sampler channel waiting
115          to start instrument loading after another channel
116    
117    
118    Version 0.5.1 (6 December 2007)
119    
120      * packaging changes:
121        - added autoconf checks for pthread library
122        - added autoconf check for pthread bug found on certain NPTL-enabled
123          glibc versions (see Gentoo bug report #194076)
124        - added autoconf checks for MS Windows
125    
126      * general changes:
127        - bugfix: the thread used by an editor plugin didn't die when the
128          editor closed
129        - bugfix: Ringbuffer.h: fill_write_space_with_null() did not zero
130          out all the space. operator--() did not apply size_mask after
131          decrementing the read_ptr. DEFAULT_WRAP_ELEMENTS set to 0 in
132          order to avoid problems with the _NonVolatileReader functions.
133        - bugfix: Stream.h: added a missing divide by BytesPerSample in
134          GetWriteSpace(). Since this function is currently only used in
135          the stream's qsort() compare function, it didn't trigger any
136          bugs.
137        - Resampler.h, Synthesizer.h: cubic interpolation now works in
138          24bit mode too. Faster method to read 24bit words on little
139          endian machines (x86): replaced 3 byte reads + shifts with a 1
140          unaligned 32bit read and shift
141        - experimental support for MS Windows (MIDI input via MME, AUDIO
142          output via ASIO)
143        - made handling of SIGINT signal (Ctrl-C) a bit more robust
144        - support for monitoring the total number of active disk streams
145          (new LSCP commands: GET TOTAL_STREAM_COUNT,
146          SUBSCRIBE TOTAL_STREAM_COUNT, UNSUBSCRIBE TOTAL_STREAM_COUNT)
147    
148      * AUDIO driver:
149        - added Windows ASIO low latency audio driver
150    
151      * MIDI driver:
152        - added MME Windows MIDI driver
153    
154      * LSCP server:
155        - added support for Windows style path / filenames, however with
156          forward slash path separators instead of backslash
157          (i.e. "C:/foo/bar.gig")
158        - allow naughty liblscp to send non-string device parameters within
159          apostrophes as well
160        - added new LSCP commands: "GET FILE INSTRUMENTS <file>",
161          "LIST FILE INSTRUMENTS <file>" and
162          "GET FILE INSTRUMENT INFO <file> <index>" for retrieving informations
163          about an arbitrary instrument file on the system where the sampler is
164          running on
165    
166    Version 0.5.0 (15 October 2007)
167    
168      * packaging changes:
169        - config.h is not going to be installed along with liblinuxsampler's
170          API header files anymore
171        - only the API relevant header (and source) files will be exported to
172          the Doxygen API documentation (explicitly listed in Doxyfile.in)
173        - added completely new XCode project files for Mac OSX which is now
174          capable to execute our autoconf environment, thus no need anymore
175          to maintain the compile time configuration file (osx/version.h) for
176          OSX manually (patch by Toshi Nagata)
177        - fixed buggy boolean --enable-foo / --disable-foo configure script
178          parameters
179        - global.h now only covers global definitions that are needed for the
180          C++ API header files, all implementation internal global definitions
181          are now in global_private.h
182        - atomic.h is not exposed to the C++ API anymore
183        - no need to include config.h anymore for using LS's API header files
184        - fixed warnings in API doc generation
185    
186      * general changes:
187        - replaced the old, confusing MIDI program change mechanism by a
188          flexible MIDI instrument mapper which allows to map arbitrary
189          (MIDI bank, MIDI program) pairs with arbitrary
190          (engine type, instrument file, file index) triplets which will be
191          loaded on the respective channel when such MIDI program change
192          messages arrive, beside that, each entry allows to define a life-time
193          strategy for the instrument, so the user can define whether the
194          instrument should i.e. be permanently loaded (to be able to switch
195          quickly among sounds) or i.e. loaded just on demand when the
196          respective program change arrives (to safe RAM space), as well as a
197          global volume factor for each entry, so the user can adjust the volume
198          dynamic of his mapped instrument collection without having to modify
199          the instrument files, also one can manage arbitrary amount of such
200          MIDI instrument maps and assign each sampler channel individually
201          a certain map, so that i.e. separation of normal instruments and
202          drumkits is possible
203        - new notification events for tracking changes to audio/MIDI devices,
204          MIDI instrument maps, MIDI instruments, FX sends, global volume.
205        - sampler was limited to load max. 200 instruments in the background
206          due to a constant size RingBuffer FIFO which is now replaced by a
207          dynamic (unlimited) size std::list FIFO
208        - added FX sends, these allow to route audio signals to arbitrary audio
209          output channels for being processed by external effect processors
210          (i.e. jack-rack), the send levels are controllable via arbitrary MIDI
211          controllers
212        - global (sampler wide) volume can now be controlled at runtime
213        - Implemented new, improved notification system
214        - fixed compilation errors regarding OSX
215          (patch by Toshi Nagata)
216        - implemented instruments database
217        - added support for escape sequences to the instruments database
218        - added highly experimental support for on-the-fly instrument editing
219          within the sampler's process (by using instrument editor plugins),
220          you'll notice the new "Registered instrument editors:" message on
221          startup, added a new LSCP command:
222          "EDIT CHANNEL INSTRUMENT <sampler-channel>"
223          to spawn a matching instrument editor for the instrument on the
224          given sampler channel, the plugin path can be overridden at compile
225          time with ./configure --enable-plugin-dir=/some/dir
226        - added experimental code for synchronizing instrument editors hosted
227          in the sampler's process to safely edit instruments while playing
228          without a crash (hopefully) by either suspending single regions
229          wherever possible or if unavoidable whole engine(s)
230        - fixed several issues in fundamental "Thread" class: set scheduling
231          policy and priority on thread level, set a minimum stack size for
232          thread (TODO: a reasonable value yet to be tested), bugfix: non-RT
233          threads simply inherited properties of starting thread instead of
234          setting their own policy and priority
235        - minor fix in our automatic stack trace mechanism on crashes, the
236          main process did not wait for the stack trace process to finish
237          its output
238        - fixed some minor memory leaks
239        - reenabled assembly features support, at the moment only for
240          enabling a fast denormal FPU mode (x86 platforms supporting SSE2)
241        - minor assembly fix in x86 features detection (don't use the PIC
242          register, to avoid relocations in the text segment at runtime)
243        - POSIX callback functions of Thread.h are hidden
244    
245      * MIDI driver:
246        - dispatch bank select (MSB and LSB) messages
247    
248      * audio driver:
249        - the ALSA audio output driver parameters now reflect the correct
250          parameter value ranges for the respective selected sound card
251          (patch by Till Wimmer, a bit fixed and extended)
252    
253      * Gigasampler format engine:
254        - if a filter is used and EG2 finishes before EG1, let the voice
255          die when EG2 has finished (this fixes a problem with clicks and
256          voice starvation for some gigs)
257        - playback is no longer disabled during instrument loading
258        - all notes playing on a channel that changes its instrument keep
259          playing with the old instrument until they get a note off
260          command
261        - EG fix: a release value of zero could cause noises or crash
262        - handle MIDI coarse tuning messages (MIDI RPN #0 MSB #2 LSB)
263        - EG fine tuning: when attack is zero the EG starts at a level
264          above max sustain level, which means that there is a decay phase
265          even if sustain is 100%
266        - more EG fixes: the level could sometimes go below zero and cause
267          noises or crashes
268        - minor fix of EGDecay (patch by Toshi Nagata)
269        - fixed compiler error when --enable-override-filter-type was
270          supplied to the configure script (fixes #46)
271        - disk thread: queue sizes are now proportional to CONFIG_MAX_STREAMS
272          instead of a fix value
273        - behavior fix: on MIDI CC# 65 (portamento on / off), 126 (mono mode),
274          127 (solo mode) only kill voices if the respective mode really
275          changed
276    
277      * LSCP server:
278        - fixed compile time error for old Bison versions
279          (i.e. v1.28 found on MacOS 10.4, patch by Toshi Nagata)
280        - parser now supports extended ASCII character set
281          (up to ASCII code 255, i.e. includes now umlauts and accents)
282        - filename arguments in LSCP commands now allow to use escape
283          sequences, that is directly literal as one of: \', \", \\, \n, \r,
284          \f, \t, \v, or as octal ASCII code value like \132, or as hex ASCII
285          code value like \xf2) (fixes bug #24)
286        - the following LSCP commands now also support escape sequences for at
287          least one of their text-based parameters (i.e. name, description):
288          "ADD MIDI_INSTRUMENT_MAP", "MAP MIDI_INSTRUMENT",
289          "SET MIDI_INSTRUMENT_MAP NAME", "SET FX_SEND NAME", "CREATE FX_SEND",
290          "SET DB_INSTRUMENT_DIRECTORY NAME",
291          "SET DB_INSTRUMENT_DIRECTORY DESCRIPTION", "SET DB_INSTRUMENT NAME",
292          "SET DB_INSTRUMENT DESCRIPTION", "FIND DB_INSTRUMENTS",
293          "FIND DB_INSTRUMENT_DIRECTORIES"
294        - returns verbose syntax errors (line and column where syntax error
295          occured, the unexpected character and the actually expected, possible
296          character(s), the latter only if less than 5 possibilities)
297        - made sure that LSCP syntax is not affected by gigedit locale
298          settings
299        - bugfix regarding strings parameter lists: all comma separated lists
300          of strings were treated as being one string containing commas
301          (fixes #57)
302    
303      * Bug fixes:
304        - fixed crash occurring on certain LSCP scripts (Bug 39)
305        - another thread safety fix for lscp "load engine" and "set
306          channel audio output device"
307        - fixed a crash which occurs when reassigning the same engine
308          on a sampler channel with connected MIDI device
309        - fixed a crash which occurs when changing the number of ports of a MIDI
310          device connected to a sampler channel to number less then or equal
311          to the index of the port to which the sampler channel is connected.
312        - The previous bindings were not been disconnected when altering
313          the ALSA_SEQ_BINDINGS parameter. Introduced a NONE keyword for
314          unsubscribing from all bindings (e.g. ALSA_SEQ_BINDINGS=NONE).
315        - The active stream/voice count statistic was incorrect.
316        - notification events were not been sent for some sampler
317          channel changes
318        - added default min and max values to restrict the number of allowed
319          audio output channels and MIDI input ports
320        - the connection to the PCM interface is now closed when destroying
321          an audio output device
322        - files with slash in their path or filename could not be loaded
323    
324      * test cases:
325        - updated and fixed (haven't been touched in a while)
326    
327    Version 0.4.0 (24 November 2006)
328    
329      * packaging changes:
330        - changed deprecated copyright attribute to license; added ldconfig
331          to post-(un)install steps; added devel package for liblinuxsampler;
332          to linuxsampler.spec (RPM)
333        - install necessary development header files for allowing 3rd party
334          applications to link against liblinuxsampler
335        - liblinuxsampler's API documentation can be generated with 'make docs'
336          (Doxygen required)
337        - added benchmark to automatically detect the best triangle LFO
338          implementation (currently either an integer math solution or a
339          di-harmonic approximation), automatic detection can be overriden
340          with --enable-signed-triang-algo=x and --enable-unsigned-triang-algo=x
341          configure script argument though (mandatory for cross-compilation)
342        - do not automatically pick optimized gcc flags if the user already
343          provided some on his own (as CXXFLAGS)
344        - added compile time option to disable processing of All-Notes-Off MIDI
345          messages
346        - added compile time options to allow disabling the various audio and
347          MIDI drivers
348        - fixed automatic GCC CPU switch detection on PPC
349          (patch by Ebrahim Mayat)
350    
351      * Gigasampler format engine:
352        - extensive synthesis optimization
353          (reimplementation of EGs and LFO(s), removed synthesis parameter
354          prerendering and the synthesis parameter matrix in general, splitting
355          each audio fragment into subfragments now where each subfragment uses
356          constant pitch and filter coefficients. The volume coefficient is
357          linearly interpolated inside a subfragment, unless
358          --disable-interpolate-volume is set.)
359        - fine tuning of the EG modulation parameters
360        - improved filter cutoff calculation by adding support for the
361          following gig parameters: Cutoff freq (used when no cutoff
362          controller is defined), Control invert, Minimum cutoff, Velocity
363          curve and Velocity range. The keyboard tracking now scales
364          cutoff frequency instead of resonance.
365        - added support for gig parameter Resonance.
366        - fixed bug in sysex handling (patch by Juan Linietsky)
367        - added global volume attenuation of -9 dB (0.35f) to prevent clipping
368          which can be overridden with --enable-global-attenuation
369        - EG fixes: made the length of "attack hold" stage more
370          accurate. Release stage can now start before attack stage
371          ends. Cancel release didn't work when sustain was zero. Attack
372          time now has a minimal value to prevent clicks.
373        - fixed pitch changes larger than one octave
374        - fixed EG3 (pitch envelope) synthesis which was neutral all the time
375        - implemented portamento mode and solo mode (a.k.a 'mono mode'):
376          all modes can be altered via standard GM messages, that is CC5 for
377          altering portamento time, CC65 for enabling / disabling portamento
378          mode, CC126 for enabling solo mode and CC127 for disabling solo mode
379        - fine tuning of the curves for volume (CC7), pan (CC10 and gig
380          parameter) and crossfade
381        - added support for the "attenuation controller threshold" gig
382          parameter
383        - added smoothing of volume changes caused by control change
384          messages
385        - sample loop parameters are now taken from the DimensionRegion
386          instead of the wave chunk
387        - fixed keyswitching for v3 gigs with a number of keyswitch splits
388          not equal to a power of two
389        - reimplementation of the filter algorithm. The new filter is more
390          accurate and supports all gig filter types, including bandreject
391          and lowpass turbo.
392        - real support for 24 bit samples - samples are not truncated to
393          16 bits anymore
394        - support for aftertouch (channel pressure, not polyphonic
395          aftertouch)
396        - LFO1 behaviour fixed (dampening from max volume instead of
397          amplifying from 0)
398    
399      * LSCP server:
400        - fixed application exit on broken pipe error (fixes bug #20)
401        - fixed the notification messages delay due to lack of
402          network activity (fixes bug #26)
403        - fixed parser bug which occured on space(s) within device parameters
404          (e.g. "SET AUDIO_OUTPUT_CHANNEL_PARAMETER 0 0 SOMEPARAM='foo bar'")
405    
406      * audio driver:
407        - added aRts audio output driver (by no means RT safe)
408    
409      * MIDI driver:
410        - fixed legacy sysex code which caused dispatching of MIDI SysEx
411          messages several times instead of once
412        - API extension for MIDI drivers which already supply exact time stamps
413          for events (i.e. for offline rendering based MIDI drivers)
414        - added checks for bad MIDI data
415    
416      * linuxsampler application:
417        - show available sampler engine types on startup
418    
419      * general changes:
420        - support for muting sampler channels and solo mode of the same, two new
421          LSCP commands ("SET CHANNEL MUTE" and "SET CHANNEL SOLO") and two new
422          fields ("MUTE" and "SOLO") for command "GET CHANNEL INFO" were
423          introduced for this, the behavior is the same like on a mixer console
424          (patch by Grigor Iliev, a bit adjusted). Also added configure option
425          --enable-process-muted-channels which can be used to enable the
426          processing of muted channels.
427        - support for sostenuto pedal
428        - support for monitoring the total number of active voices
429          (new LSCP commands: GET TOTAL_VOICE_COUNT, GET TOTAL_VOICE_COUNT_MAX,
430          SUBSCRIBE TOTAL_VOICE_COUNT, UNSUBSCRIBE TOTAL_VOICE_COUNT)
431        - fixed some memory management errors
432        - fixed some concurrency problems that could lead to crashes when
433          LSCP commands were executed
434        - fixed crash when instrument loading failed previously on the same
435          sampler channel (fixes bug #36)
436    
437    Version 0.3.3 (15 July 2005)
438    
439      * packaging changes:
440        - fixed compilation with gcc 4.0
441    
442      * Gigasampler format engine:
443        - LFO preprocessing was performed even though the respective LFO was
444          disabled by the instrument patch (minor efficiency fix)
445        - if period time of chosen audio device is too small (< MIN_RELEASE_TIME)
446          for volume ramp downs in the same fragment (needed for current voice
447          stealing implementation) then simply inform the user with a warning
448          about possible click sounds and reduce the volume ramp down
449          appropriately instead of cancelling the audio device connection
450    
451    Version 0.3.2 (24 June 2005)
452    
453      * packaging changes:
454      - updated autotools build files to compile on OS X      - updated autotools build files to compile on OS X
455        (conditional compilation of CoreMIDI and MidiShare drivers)        (conditional compilation of CoreMIDI and MidiShare drivers)
456      - hand-crafted assembly optimization code can be disabled with      - hand-crafted assembly optimization code can be disabled with
# Line 22  Version CVS HEAD (?) Line 472  Version CVS HEAD (?)
472        instead of when the respective voice is actually launched        instead of when the respective voice is actually launched
473        (fixes undefined behavior if stolen voices belonged to a key group -        (fixes undefined behavior if stolen voices belonged to a key group -
474        this case was followed by a "killed voice survived" error message)        this case was followed by a "killed voice survived" error message)
475        - fixed minor issue with null/silence samples
476          (those stole voices even though they don't need a voice at all which
477          resulted in "voice stealing didn't work out" messages)
478        - don't reset volume, pan, pitch and MIDI controller values on
479          instrument or audio output device change
480    
481    * LSCP server:    * LSCP server:
482      - fixed some crashes (patch by Grigor Iliev, fixes #19)      - fixed some crashes (patch by Grigor Iliev, fixes #19)
483      - fixed LSCP event "CHANNEL_INFO" notification      - fixed LSCP event "CHANNEL_INFO" notification
484        (e.g. did not notify on volume changes)        (e.g. did not notify on volume changes or MIDI program change events)
485    
486    * linuxsampler application:    * linuxsampler application:
487      - added command line parameters --lscp-addr and --lscp-port to override      - added command line parameters --lscp-addr and --lscp-port to override

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