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Revision 1857 - (show annotations) (download)
Sat Mar 7 19:23:10 2009 UTC (11 years, 6 months ago) by schoenebeck
File size: 27144 byte(s)
* fixed hanging notes which occured when note-off event had the exact
  same time stamp as the voice's note-on event and occured both in the
  same audio fragment cycle (fixes bug #112)
* bumped version to

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

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