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Revision 1842 - (show annotations) (download)
Sat Feb 21 16:11:17 2009 UTC (10 years, 11 months ago) by persson
File size: 26266 byte(s)
* fixed building with libgig installed in a non-standard directory

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

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