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Revision 1882 - (show annotations) (download)
Wed Apr 1 15:21:13 2009 UTC (11 years, 6 months ago) by iliev
File size: 27983 byte(s)
* LSCP server: hard close of all sockets on exit
* Load instruments in background when restoring plugin state

1 Version CVS HEAD (?)
3 * 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
46 - added optional 3rd party user data parameter for following
47 liblinuxsampler C++ API methods: InstrumentEditor::Main(),
48 InstrumentEditor::Launch(),
49 InstrumentManager::LaunchInstrumentEditor()
51 * audio driver:
52 - removed the nonsense audio channel constraint (which was hard coded to
53 max. 100 audio channels) for most audio drivers
54 - JACK audio driver did not offer a device parameter "SAMPLERATE" as
55 opposed to the LSCP specs
56 - bugfix: the SAMPLERATE parameter of some drivers (e.g. JACK)
57 reflected the wrong value
58 - fixed a memory management bug in ASIO driver
59 - Makefile fix: JACK_CFLAGS wasn't used
60 - JACK: use jack_client_open instead of the deprecated
61 jack_client_new
62 - added (experimental) CoreAudio driver
64 * MIDI driver:
65 - added JACK MIDI driver
66 - dispatch bank select as ordinary CC as well, the user might seriously
67 want to (mis)use it for some purpose ("fixed" in all current MIDI
68 input drivers: ALSA, CoreMIDI, JACK, MidiShare, MME)
70 * instruments database:
71 - avoid time consuming samples scanning when adding instruments
72 to the instruments database
73 - added support for handling lost files in the instruments database
74 - Implemented option for adding instruments in separate directories
75 in the instruments database
76 (patch by Chris Cherrett & Andrew Williams, a bit adjusted)
78 * Gigasampler format engine:
79 - fixed a memory leak that could happen when a channel was deleted
80 while notes were playing
81 - made it possible to load an instrument even if the audio thread
82 isn't running
83 - added partial support for the "Controller Triggered" MIDI rule,
84 enough for piano gigs with pedal noise samples
85 - minor fix: only mark FX sends as being modified if really the
86 respective FX send MIDI controller was used
87 - added support for GM global device volume SysEx message
88 (can be selected at compile time to either apply globally to the
89 whole sampler [default] or only to the sampler channels that are
90 connected to the respective MIDI input port the SysEx message arrived
91 on)
92 - bugfix: notes triggered at position 0 in the audio buffer were
93 sometimes wrongly killed in the same buffer, causing no sound to
94 be played
95 - added support for chromatic / drumkit mode Roland GS Sysex message
96 which is usally used to switch a part between chromatic sounds and
97 drumkit sounds (as opposed to their common default setting of MIDI
98 part 10 being a drumkit part and all other ones chromatic parts), in
99 LS however one can switch between the first 16 MIDI instrument maps
100 defined for the sampler
101 - made it possible to create multiple sample channels even if the
102 audio thread isn't running
103 - fixed crash when removing channel with active voices (#116)
104 - bugfix: on sample reference changes (instrument editor), only
105 un-cache the respective sample if it's really not used by any
106 sampler engine anymore
107 - re-cache samples in case they were changed by an instrument editor,
108 e.g. when a sample was added while playing (#82)
109 - fixed hanging notes which occured when note-off event had the exact
110 same time stamp as the voice's note-on event and occured both in the
111 same audio fragment cycle (fixes bug #112)
112 - added support for the "fine tune" and "pitch bend range"
113 instrument-level gig parameters
114 - fixed minor artifacts in pitch bend handling
115 - added support for GS Reset SysEx message
116 - allow gig files to use unlimited downward pitch shifting
117 - added a limit check for upward pitch shifting
119 * LSCP server:
120 - added new LSCP event "CHANNEL_MIDI" which can be used by frontends to
121 react on MIDI data arriving on certain sampler channels (so far only
122 Note-On and Note-Off events are sent via this LSCP event)
123 - added new LSCP event "DEVICE_MIDI" which can be used by frontends to
124 react on MIDI data arriving on certain MIDI input devices (so far only
125 Note-On and Note-Off events are sent via this LSCP event)
126 - added new LSCP commands: FIND LOST DB_INSTRUMENT_FILES and
128 - added new LSCP command: SEND CHANNEL MIDI_DATA which can be used by
129 frontends to send MIDI messages to specific sampler channel
130 - added two additional fields to GET FILE INSTRUMENT INFO command -
132 - bugfix: the bank number provided by MIDI_INSTRUMENT_INFO notifications
133 was incorrect
134 - Optimized the retrieval of the MIDI instrument mappings
135 - added new LSCP command "SET VOICES" to globally alter the maximum
136 amount of voices, added new LSCP event "GLOBAL_INFO:VOICES" which will
137 be triggered respectively
138 - added new LSCP command "SET STREAMS" to globally alter the maximum
139 amount of disk streams, added new LSCP event "GLOBAL_INFO:STREAMS"
140 which will be triggered respectively
141 - bugfix: retry if "select" returns EINTR (this fixes a crash when
142 a gigedit file dialog is opened)
143 - close all connections when LSCPServer is deleted
144 - hard close of all sockets on exit
146 * Bug fixes:
147 - fixed a crash which occurs when removing a sampler channel waiting
148 to start instrument loading after another channel
149 - fixed a crash which occurs when removing a sampler channel with
150 instrument loading in progress (bug #113)
151 - fixed termination caused by uncaught exception when adding MIDI
152 instrument with PERSISTENT load mode
153 - fixed possible iterator invalidations when resetting the sampler
154 - fixed memory leaks when issuing the following LSCP commands:
159 - fixed possible compilation error when sqlite is not present
160 - fixed orphaned pointers when setting maximum voices limit (bug #118)
161 - fixed crash when changing the audio output device of a sampler
162 channel with loaded instrument and start playing notes
163 - fixed endless loop in Engine::SuspendAll() (bug #120)
164 - fixed a low-level atomic load function that was broken on 64-bit
165 PowerPC, which probably could cause crashes on that platform
168 Version 0.5.1 (6 December 2007)
170 * packaging changes:
171 - added autoconf checks for pthread library
172 - added autoconf check for pthread bug found on certain NPTL-enabled
173 glibc versions (see Gentoo bug report #194076)
174 - added autoconf checks for MS Windows
176 * general changes:
177 - bugfix: the thread used by an editor plugin didn't die when the
178 editor closed
179 - bugfix: Ringbuffer.h: fill_write_space_with_null() did not zero
180 out all the space. operator--() did not apply size_mask after
181 decrementing the read_ptr. DEFAULT_WRAP_ELEMENTS set to 0 in
182 order to avoid problems with the _NonVolatileReader functions.
183 - bugfix: Stream.h: added a missing divide by BytesPerSample in
184 GetWriteSpace(). Since this function is currently only used in
185 the stream's qsort() compare function, it didn't trigger any
186 bugs.
187 - Resampler.h, Synthesizer.h: cubic interpolation now works in
188 24bit mode too. Faster method to read 24bit words on little
189 endian machines (x86): replaced 3 byte reads + shifts with a 1
190 unaligned 32bit read and shift
191 - experimental support for MS Windows (MIDI input via MME, AUDIO
192 output via ASIO)
193 - made handling of SIGINT signal (Ctrl-C) a bit more robust
194 - support for monitoring the total number of active disk streams
195 (new LSCP commands: GET TOTAL_STREAM_COUNT,
198 * AUDIO driver:
199 - added Windows ASIO low latency audio driver
201 * MIDI driver:
202 - added MME Windows MIDI driver
204 * LSCP server:
205 - added support for Windows style path / filenames, however with
206 forward slash path separators instead of backslash
207 (i.e. "C:/foo/bar.gig")
208 - allow naughty liblscp to send non-string device parameters within
209 apostrophes as well
210 - added new LSCP commands: "GET FILE INSTRUMENTS <file>",
211 "LIST FILE INSTRUMENTS <file>" and
212 "GET FILE INSTRUMENT INFO <file> <index>" for retrieving informations
213 about an arbitrary instrument file on the system where the sampler is
214 running on
216 Version 0.5.0 (15 October 2007)
218 * packaging changes:
219 - config.h is not going to be installed along with liblinuxsampler's
220 API header files anymore
221 - only the API relevant header (and source) files will be exported to
222 the Doxygen API documentation (explicitly listed in Doxyfile.in)
223 - added completely new XCode project files for Mac OSX which is now
224 capable to execute our autoconf environment, thus no need anymore
225 to maintain the compile time configuration file (osx/version.h) for
226 OSX manually (patch by Toshi Nagata)
227 - fixed buggy boolean --enable-foo / --disable-foo configure script
228 parameters
229 - global.h now only covers global definitions that are needed for the
230 C++ API header files, all implementation internal global definitions
231 are now in global_private.h
232 - atomic.h is not exposed to the C++ API anymore
233 - no need to include config.h anymore for using LS's API header files
234 - fixed warnings in API doc generation
236 * general changes:
237 - replaced the old, confusing MIDI program change mechanism by a
238 flexible MIDI instrument mapper which allows to map arbitrary
239 (MIDI bank, MIDI program) pairs with arbitrary
240 (engine type, instrument file, file index) triplets which will be
241 loaded on the respective channel when such MIDI program change
242 messages arrive, beside that, each entry allows to define a life-time
243 strategy for the instrument, so the user can define whether the
244 instrument should i.e. be permanently loaded (to be able to switch
245 quickly among sounds) or i.e. loaded just on demand when the
246 respective program change arrives (to safe RAM space), as well as a
247 global volume factor for each entry, so the user can adjust the volume
248 dynamic of his mapped instrument collection without having to modify
249 the instrument files, also one can manage arbitrary amount of such
250 MIDI instrument maps and assign each sampler channel individually
251 a certain map, so that i.e. separation of normal instruments and
252 drumkits is possible
253 - new notification events for tracking changes to audio/MIDI devices,
254 MIDI instrument maps, MIDI instruments, FX sends, global volume.
255 - sampler was limited to load max. 200 instruments in the background
256 due to a constant size RingBuffer FIFO which is now replaced by a
257 dynamic (unlimited) size std::list FIFO
258 - added FX sends, these allow to route audio signals to arbitrary audio
259 output channels for being processed by external effect processors
260 (i.e. jack-rack), the send levels are controllable via arbitrary MIDI
261 controllers
262 - global (sampler wide) volume can now be controlled at runtime
263 - Implemented new, improved notification system
264 - fixed compilation errors regarding OSX
265 (patch by Toshi Nagata)
266 - implemented instruments database
267 - added support for escape sequences to the instruments database
268 - added highly experimental support for on-the-fly instrument editing
269 within the sampler's process (by using instrument editor plugins),
270 you'll notice the new "Registered instrument editors:" message on
271 startup, added a new LSCP command:
272 "EDIT CHANNEL INSTRUMENT <sampler-channel>"
273 to spawn a matching instrument editor for the instrument on the
274 given sampler channel, the plugin path can be overridden at compile
275 time with ./configure --enable-plugin-dir=/some/dir
276 - added experimental code for synchronizing instrument editors hosted
277 in the sampler's process to safely edit instruments while playing
278 without a crash (hopefully) by either suspending single regions
279 wherever possible or if unavoidable whole engine(s)
280 - fixed several issues in fundamental "Thread" class: set scheduling
281 policy and priority on thread level, set a minimum stack size for
282 thread (TODO: a reasonable value yet to be tested), bugfix: non-RT
283 threads simply inherited properties of starting thread instead of
284 setting their own policy and priority
285 - minor fix in our automatic stack trace mechanism on crashes, the
286 main process did not wait for the stack trace process to finish
287 its output
288 - fixed some minor memory leaks
289 - reenabled assembly features support, at the moment only for
290 enabling a fast denormal FPU mode (x86 platforms supporting SSE2)
291 - minor assembly fix in x86 features detection (don't use the PIC
292 register, to avoid relocations in the text segment at runtime)
293 - POSIX callback functions of Thread.h are hidden
295 * MIDI driver:
296 - dispatch bank select (MSB and LSB) messages
298 * audio driver:
299 - the ALSA audio output driver parameters now reflect the correct
300 parameter value ranges for the respective selected sound card
301 (patch by Till Wimmer, a bit fixed and extended)
303 * Gigasampler format engine:
304 - if a filter is used and EG2 finishes before EG1, let the voice
305 die when EG2 has finished (this fixes a problem with clicks and
306 voice starvation for some gigs)
307 - playback is no longer disabled during instrument loading
308 - all notes playing on a channel that changes its instrument keep
309 playing with the old instrument until they get a note off
310 command
311 - EG fix: a release value of zero could cause noises or crash
312 - handle MIDI coarse tuning messages (MIDI RPN #0 MSB #2 LSB)
313 - EG fine tuning: when attack is zero the EG starts at a level
314 above max sustain level, which means that there is a decay phase
315 even if sustain is 100%
316 - more EG fixes: the level could sometimes go below zero and cause
317 noises or crashes
318 - minor fix of EGDecay (patch by Toshi Nagata)
319 - fixed compiler error when --enable-override-filter-type was
320 supplied to the configure script (fixes #46)
321 - disk thread: queue sizes are now proportional to CONFIG_MAX_STREAMS
322 instead of a fix value
323 - behavior fix: on MIDI CC# 65 (portamento on / off), 126 (mono mode),
324 127 (solo mode) only kill voices if the respective mode really
325 changed
327 * LSCP server:
328 - fixed compile time error for old Bison versions
329 (i.e. v1.28 found on MacOS 10.4, patch by Toshi Nagata)
330 - parser now supports extended ASCII character set
331 (up to ASCII code 255, i.e. includes now umlauts and accents)
332 - filename arguments in LSCP commands now allow to use escape
333 sequences, that is directly literal as one of: \', \", \\, \n, \r,
334 \f, \t, \v, or as octal ASCII code value like \132, or as hex ASCII
335 code value like \xf2) (fixes bug #24)
336 - the following LSCP commands now also support escape sequences for at
337 least one of their text-based parameters (i.e. name, description):
344 - returns verbose syntax errors (line and column where syntax error
345 occured, the unexpected character and the actually expected, possible
346 character(s), the latter only if less than 5 possibilities)
347 - made sure that LSCP syntax is not affected by gigedit locale
348 settings
349 - bugfix regarding strings parameter lists: all comma separated lists
350 of strings were treated as being one string containing commas
351 (fixes #57)
353 * Bug fixes:
354 - fixed crash occurring on certain LSCP scripts (Bug 39)
355 - another thread safety fix for lscp "load engine" and "set
356 channel audio output device"
357 - fixed a crash which occurs when reassigning the same engine
358 on a sampler channel with connected MIDI device
359 - fixed a crash which occurs when changing the number of ports of a MIDI
360 device connected to a sampler channel to number less then or equal
361 to the index of the port to which the sampler channel is connected.
362 - The previous bindings were not been disconnected when altering
363 the ALSA_SEQ_BINDINGS parameter. Introduced a NONE keyword for
364 unsubscribing from all bindings (e.g. ALSA_SEQ_BINDINGS=NONE).
365 - The active stream/voice count statistic was incorrect.
366 - notification events were not been sent for some sampler
367 channel changes
368 - added default min and max values to restrict the number of allowed
369 audio output channels and MIDI input ports
370 - the connection to the PCM interface is now closed when destroying
371 an audio output device
372 - files with slash in their path or filename could not be loaded
374 * test cases:
375 - updated and fixed (haven't been touched in a while)
377 Version 0.4.0 (24 November 2006)
379 * packaging changes:
380 - changed deprecated copyright attribute to license; added ldconfig
381 to post-(un)install steps; added devel package for liblinuxsampler;
382 to linuxsampler.spec (RPM)
383 - install necessary development header files for allowing 3rd party
384 applications to link against liblinuxsampler
385 - liblinuxsampler's API documentation can be generated with 'make docs'
386 (Doxygen required)
387 - added benchmark to automatically detect the best triangle LFO
388 implementation (currently either an integer math solution or a
389 di-harmonic approximation), automatic detection can be overriden
390 with --enable-signed-triang-algo=x and --enable-unsigned-triang-algo=x
391 configure script argument though (mandatory for cross-compilation)
392 - do not automatically pick optimized gcc flags if the user already
393 provided some on his own (as CXXFLAGS)
394 - added compile time option to disable processing of All-Notes-Off MIDI
395 messages
396 - added compile time options to allow disabling the various audio and
397 MIDI drivers
398 - fixed automatic GCC CPU switch detection on PPC
399 (patch by Ebrahim Mayat)
401 * Gigasampler format engine:
402 - extensive synthesis optimization
403 (reimplementation of EGs and LFO(s), removed synthesis parameter
404 prerendering and the synthesis parameter matrix in general, splitting
405 each audio fragment into subfragments now where each subfragment uses
406 constant pitch and filter coefficients. The volume coefficient is
407 linearly interpolated inside a subfragment, unless
408 --disable-interpolate-volume is set.)
409 - fine tuning of the EG modulation parameters
410 - improved filter cutoff calculation by adding support for the
411 following gig parameters: Cutoff freq (used when no cutoff
412 controller is defined), Control invert, Minimum cutoff, Velocity
413 curve and Velocity range. The keyboard tracking now scales
414 cutoff frequency instead of resonance.
415 - added support for gig parameter Resonance.
416 - fixed bug in sysex handling (patch by Juan Linietsky)
417 - added global volume attenuation of -9 dB (0.35f) to prevent clipping
418 which can be overridden with --enable-global-attenuation
419 - EG fixes: made the length of "attack hold" stage more
420 accurate. Release stage can now start before attack stage
421 ends. Cancel release didn't work when sustain was zero. Attack
422 time now has a minimal value to prevent clicks.
423 - fixed pitch changes larger than one octave
424 - fixed EG3 (pitch envelope) synthesis which was neutral all the time
425 - implemented portamento mode and solo mode (a.k.a 'mono mode'):
426 all modes can be altered via standard GM messages, that is CC5 for
427 altering portamento time, CC65 for enabling / disabling portamento
428 mode, CC126 for enabling solo mode and CC127 for disabling solo mode
429 - fine tuning of the curves for volume (CC7), pan (CC10 and gig
430 parameter) and crossfade
431 - added support for the "attenuation controller threshold" gig
432 parameter
433 - added smoothing of volume changes caused by control change
434 messages
435 - sample loop parameters are now taken from the DimensionRegion
436 instead of the wave chunk
437 - fixed keyswitching for v3 gigs with a number of keyswitch splits
438 not equal to a power of two
439 - reimplementation of the filter algorithm. The new filter is more
440 accurate and supports all gig filter types, including bandreject
441 and lowpass turbo.
442 - real support for 24 bit samples - samples are not truncated to
443 16 bits anymore
444 - support for aftertouch (channel pressure, not polyphonic
445 aftertouch)
446 - LFO1 behaviour fixed (dampening from max volume instead of
447 amplifying from 0)
449 * LSCP server:
450 - fixed application exit on broken pipe error (fixes bug #20)
451 - fixed the notification messages delay due to lack of
452 network activity (fixes bug #26)
453 - fixed parser bug which occured on space(s) within device parameters
456 * audio driver:
457 - added aRts audio output driver (by no means RT safe)
459 * MIDI driver:
460 - fixed legacy sysex code which caused dispatching of MIDI SysEx
461 messages several times instead of once
462 - API extension for MIDI drivers which already supply exact time stamps
463 for events (i.e. for offline rendering based MIDI drivers)
464 - added checks for bad MIDI data
466 * linuxsampler application:
467 - show available sampler engine types on startup
469 * general changes:
470 - support for muting sampler channels and solo mode of the same, two new
471 LSCP commands ("SET CHANNEL MUTE" and "SET CHANNEL SOLO") and two new
472 fields ("MUTE" and "SOLO") for command "GET CHANNEL INFO" were
473 introduced for this, the behavior is the same like on a mixer console
474 (patch by Grigor Iliev, a bit adjusted). Also added configure option
475 --enable-process-muted-channels which can be used to enable the
476 processing of muted channels.
477 - support for sostenuto pedal
478 - support for monitoring the total number of active voices
481 - fixed some memory management errors
482 - fixed some concurrency problems that could lead to crashes when
483 LSCP commands were executed
484 - fixed crash when instrument loading failed previously on the same
485 sampler channel (fixes bug #36)
487 Version 0.3.3 (15 July 2005)
489 * packaging changes:
490 - fixed compilation with gcc 4.0
492 * Gigasampler format engine:
493 - LFO preprocessing was performed even though the respective LFO was
494 disabled by the instrument patch (minor efficiency fix)
495 - if period time of chosen audio device is too small (< MIN_RELEASE_TIME)
496 for volume ramp downs in the same fragment (needed for current voice
497 stealing implementation) then simply inform the user with a warning
498 about possible click sounds and reduce the volume ramp down
499 appropriately instead of cancelling the audio device connection
501 Version 0.3.2 (24 June 2005)
503 * packaging changes:
504 - updated autotools build files to compile on OS X
505 (conditional compilation of CoreMIDI and MidiShare drivers)
506 - hand-crafted assembly optimization code can be disabled with
507 './configure --disable-asm' (definitely not recommended)
508 - fixed 'make dist' rule to include all necessary files
509 - require automake (>= 1.5) for 'make -f Makefile.cvs'
510 (due to 'dist-bzip2' automake option)
512 * Gigasampler format engine:
513 - support for the gig parameters for "release velocity response" curves
514 - fine tuning of the EGADSR envelope
515 - volume of release triggered samples now depends on note-on velocity,
516 note length and gig parameter "release trigger decay" instead of
517 note-off velocity.
518 - revised voice stealing
519 (fixes crash and endless loop caused by voice stealing)
520 - don't reset scale tuning on instrument or audio output device change
521 - handle key group conflicts right at the beginning of each fragment
522 instead of when the respective voice is actually launched
523 (fixes undefined behavior if stolen voices belonged to a key group -
524 this case was followed by a "killed voice survived" error message)
525 - fixed minor issue with null/silence samples
526 (those stole voices even though they don't need a voice at all which
527 resulted in "voice stealing didn't work out" messages)
528 - don't reset volume, pan, pitch and MIDI controller values on
529 instrument or audio output device change
531 * LSCP server:
532 - fixed some crashes (patch by Grigor Iliev, fixes #19)
533 - fixed LSCP event "CHANNEL_INFO" notification
534 (e.g. did not notify on volume changes or MIDI program change events)
536 * linuxsampler application:
537 - added command line parameters --lscp-addr and --lscp-port to override
538 default IP address and port of LSCP server
540 Version 0.3.1 (24 May 2005)
542 * initial release

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