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Revision 1830 - (show annotations) (download)
Sat Jan 31 11:31:41 2009 UTC (15 years, 1 month ago) by schoenebeck
File size: 25835 byte(s)
* automatic stacktrace mechanism is now turned off by default and can
  be switched on by command line option "--stacktrace" (the automatic
  stacktrace mechanism seems to be broken on most systems at the moment)
* bumped version to 0.5.1.9cvs

1 Version CVS HEAD (?)
2
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
14 * general changes:
15 - bugfix: on some POSIX systems instrument editor plugins refused to
16 load as we used a non-portable Linux specific struct field
17 (fixes bug #70, patch by Ronald Baljeu)
18 - fixed endless loop which occured when loading an instrument editor
19 plugin DLL on Windows systems failed
20 - fixed memory leaks that occurred when liblinuxsampler was unloaded
21 - optimized the SynchronizedConfig class so it doesn't wait
22 unnecessarily long after an update
23 - added support for notifying instrument editors on note-on / note-off
24 events (e.g. to highlight the pressed keys on the virtual keyboard
25 of gigedit)
26 - added support for triggering notes by instrument editors (see above)
27 - be verbose on DLL load errors (on Linux)
28 - fixed di-harmonic triangle LFO implementation (this LFO implementation
29 is only used by very few systems, most pick the int math
30 implementation, which is usually faster)
31 - fixes for audio drivers with varying buffer sizes
32 - experimental support for running LinuxSampler as a DSSI, LV2 and
33 VST plugin
34 - notification events for stream/voice count statistics are now sent
35 only when there are actual changes
36 - added memory ordering constraints to improve stability on
37 multi-core and multi-cpu systems
38 - maximum voices and disk streams can now be altered at runtime
39 - fixed CPU feature detection on x86_64 (maybe fixes #108)
40 - automatic stacktrace mechanism is now turned off by default and can
41 be switched on by command line option "--stacktrace" (the automatic
42 stacktrace mechanism seems to be broken on most systems at the moment)
43
44 * audio driver:
45 - removed the nonsense audio channel constraint (which was hard coded to
46 max. 100 audio channels) for most audio drivers
47 - JACK audio driver did not offer a device parameter "SAMPLERATE" as
48 opposed to the LSCP specs
49 - bugfix: the SAMPLERATE parameter of some drivers (e.g. JACK)
50 reflected the wrong value
51 - fixed a memory management bug in ASIO driver
52 - Makefile fix: JACK_CFLAGS wasn't used
53 - JACK: use jack_client_open instead of the deprecated
54 jack_client_new
55 - added (experimental) CoreAudio driver
56
57 * MIDI driver:
58 - added JACK MIDI driver
59 - dispatch bank select as ordinary CC as well, the user might seriously
60 want to (mis)use it for some purpose ("fixed" in all current MIDI
61 input drivers: ALSA, CoreMIDI, JACK, MidiShare, MME)
62
63 * instruments database:
64 - avoid time consuming samples scanning when adding instruments
65 to the instruments database
66 - added support for handling lost files in the instruments database
67 - Implemented option for adding instruments in separate directories
68 in the instruments database
69 (patch by Chris Cherrett & Andrew Williams, a bit adjusted)
70
71 * Gigasampler format engine:
72 - fixed a memory leak that could happen when a channel was deleted
73 while notes were playing
74 - made it possible to load an instrument even if the audio thread
75 isn't running
76 - added partial support for the "Controller Triggered" MIDI rule,
77 enough for piano gigs with pedal noise samples
78 - minor fix: only mark FX sends as being modified if really the
79 respective FX send MIDI controller was used
80 - added support for GM global device volume SysEx message
81 (can be selected at compile time to either apply globally to the
82 whole sampler [default] or only to the sampler channels that are
83 connected to the respective MIDI input port the SysEx message arrived
84 on)
85 - bugfix: notes triggered at position 0 in the audio buffer were
86 sometimes wrongly killed in the same buffer, causing no sound to
87 be played
88 - added support for chromatic / drumkit mode Roland GS Sysex message
89 which is usally used to switch a part between chromatic sounds and
90 drumkit sounds (as opposed to their common default setting of MIDI
91 part 10 being a drumkit part and all other ones chromatic parts), in
92 LS however one can switch between the first 16 MIDI instrument maps
93 defined for the sampler
94 - made it possible to create multiple sample channels even if the
95 audio thread isn't running
96
97 * LSCP server:
98 - added new LSCP event "CHANNEL_MIDI" which can be used by frontends to
99 react on MIDI data arriving on certain sampler channels (so far only
100 Note-On and Note-Off events are sent via this LSCP event)
101 - added new LSCP event "DEVICE_MIDI" which can be used by frontends to
102 react on MIDI data arriving on certain MIDI input devices (so far only
103 Note-On and Note-Off events are sent via this LSCP event)
104 - added new LSCP commands: FIND LOST DB_INSTRUMENT_FILES and
105 SET DB_INSTRUMENT FILE_PATH
106 - added new LSCP command: SEND CHANNEL MIDI_DATA which can be used by
107 frontends to send MIDI messages to specific sampler channel
108 - added two additional fields to GET FILE INSTRUMENT INFO command -
109 KEY_BINDINGS and KEYSWITCH_BINDINGS
110 - bugfix: the bank number provided by MIDI_INSTRUMENT_INFO notifications
111 was incorrect
112 - Optimized the retrieval of the MIDI instrument mappings
113 - added new LSCP command "SET VOICES" to globally alter the maximum
114 amount of voices, added new LSCP event "GLOBAL_INFO:VOICES" which will
115 be triggered respectively
116 - added new LSCP command "SET STREAMS" to globally alter the maximum
117 amount of disk streams, added new LSCP event "GLOBAL_INFO:STREAMS"
118 which will be triggered respectively
119 - bugfix: retry if "select" returns EINTR (this fixes a crash when
120 a gigedit file dialog is opened)
121
122 * Bug fixes:
123 - fixed a crash which occurs when removing a sampler channel waiting
124 to start instrument loading after another channel
125 - fixed a crash which occurs when removing a sampler channel with
126 instrument loading in progress (bug #113)
127 - fixed termination caused by uncaught exception when adding MIDI
128 instrument with PERSISTENT load mode
129
130
131 Version 0.5.1 (6 December 2007)
132
133 * packaging changes:
134 - added autoconf checks for pthread library
135 - added autoconf check for pthread bug found on certain NPTL-enabled
136 glibc versions (see Gentoo bug report #194076)
137 - added autoconf checks for MS Windows
138
139 * general changes:
140 - bugfix: the thread used by an editor plugin didn't die when the
141 editor closed
142 - bugfix: Ringbuffer.h: fill_write_space_with_null() did not zero
143 out all the space. operator--() did not apply size_mask after
144 decrementing the read_ptr. DEFAULT_WRAP_ELEMENTS set to 0 in
145 order to avoid problems with the _NonVolatileReader functions.
146 - bugfix: Stream.h: added a missing divide by BytesPerSample in
147 GetWriteSpace(). Since this function is currently only used in
148 the stream's qsort() compare function, it didn't trigger any
149 bugs.
150 - Resampler.h, Synthesizer.h: cubic interpolation now works in
151 24bit mode too. Faster method to read 24bit words on little
152 endian machines (x86): replaced 3 byte reads + shifts with a 1
153 unaligned 32bit read and shift
154 - experimental support for MS Windows (MIDI input via MME, AUDIO
155 output via ASIO)
156 - made handling of SIGINT signal (Ctrl-C) a bit more robust
157 - support for monitoring the total number of active disk streams
158 (new LSCP commands: GET TOTAL_STREAM_COUNT,
159 SUBSCRIBE TOTAL_STREAM_COUNT, UNSUBSCRIBE TOTAL_STREAM_COUNT)
160
161 * AUDIO driver:
162 - added Windows ASIO low latency audio driver
163
164 * MIDI driver:
165 - added MME Windows MIDI driver
166
167 * LSCP server:
168 - added support for Windows style path / filenames, however with
169 forward slash path separators instead of backslash
170 (i.e. "C:/foo/bar.gig")
171 - allow naughty liblscp to send non-string device parameters within
172 apostrophes as well
173 - added new LSCP commands: "GET FILE INSTRUMENTS <file>",
174 "LIST FILE INSTRUMENTS <file>" and
175 "GET FILE INSTRUMENT INFO <file> <index>" for retrieving informations
176 about an arbitrary instrument file on the system where the sampler is
177 running on
178
179 Version 0.5.0 (15 October 2007)
180
181 * packaging changes:
182 - config.h is not going to be installed along with liblinuxsampler's
183 API header files anymore
184 - only the API relevant header (and source) files will be exported to
185 the Doxygen API documentation (explicitly listed in Doxyfile.in)
186 - added completely new XCode project files for Mac OSX which is now
187 capable to execute our autoconf environment, thus no need anymore
188 to maintain the compile time configuration file (osx/version.h) for
189 OSX manually (patch by Toshi Nagata)
190 - fixed buggy boolean --enable-foo / --disable-foo configure script
191 parameters
192 - global.h now only covers global definitions that are needed for the
193 C++ API header files, all implementation internal global definitions
194 are now in global_private.h
195 - atomic.h is not exposed to the C++ API anymore
196 - no need to include config.h anymore for using LS's API header files
197 - fixed warnings in API doc generation
198
199 * general changes:
200 - replaced the old, confusing MIDI program change mechanism by a
201 flexible MIDI instrument mapper which allows to map arbitrary
202 (MIDI bank, MIDI program) pairs with arbitrary
203 (engine type, instrument file, file index) triplets which will be
204 loaded on the respective channel when such MIDI program change
205 messages arrive, beside that, each entry allows to define a life-time
206 strategy for the instrument, so the user can define whether the
207 instrument should i.e. be permanently loaded (to be able to switch
208 quickly among sounds) or i.e. loaded just on demand when the
209 respective program change arrives (to safe RAM space), as well as a
210 global volume factor for each entry, so the user can adjust the volume
211 dynamic of his mapped instrument collection without having to modify
212 the instrument files, also one can manage arbitrary amount of such
213 MIDI instrument maps and assign each sampler channel individually
214 a certain map, so that i.e. separation of normal instruments and
215 drumkits is possible
216 - new notification events for tracking changes to audio/MIDI devices,
217 MIDI instrument maps, MIDI instruments, FX sends, global volume.
218 - sampler was limited to load max. 200 instruments in the background
219 due to a constant size RingBuffer FIFO which is now replaced by a
220 dynamic (unlimited) size std::list FIFO
221 - added FX sends, these allow to route audio signals to arbitrary audio
222 output channels for being processed by external effect processors
223 (i.e. jack-rack), the send levels are controllable via arbitrary MIDI
224 controllers
225 - global (sampler wide) volume can now be controlled at runtime
226 - Implemented new, improved notification system
227 - fixed compilation errors regarding OSX
228 (patch by Toshi Nagata)
229 - implemented instruments database
230 - added support for escape sequences to the instruments database
231 - added highly experimental support for on-the-fly instrument editing
232 within the sampler's process (by using instrument editor plugins),
233 you'll notice the new "Registered instrument editors:" message on
234 startup, added a new LSCP command:
235 "EDIT CHANNEL INSTRUMENT <sampler-channel>"
236 to spawn a matching instrument editor for the instrument on the
237 given sampler channel, the plugin path can be overridden at compile
238 time with ./configure --enable-plugin-dir=/some/dir
239 - added experimental code for synchronizing instrument editors hosted
240 in the sampler's process to safely edit instruments while playing
241 without a crash (hopefully) by either suspending single regions
242 wherever possible or if unavoidable whole engine(s)
243 - fixed several issues in fundamental "Thread" class: set scheduling
244 policy and priority on thread level, set a minimum stack size for
245 thread (TODO: a reasonable value yet to be tested), bugfix: non-RT
246 threads simply inherited properties of starting thread instead of
247 setting their own policy and priority
248 - minor fix in our automatic stack trace mechanism on crashes, the
249 main process did not wait for the stack trace process to finish
250 its output
251 - fixed some minor memory leaks
252 - reenabled assembly features support, at the moment only for
253 enabling a fast denormal FPU mode (x86 platforms supporting SSE2)
254 - minor assembly fix in x86 features detection (don't use the PIC
255 register, to avoid relocations in the text segment at runtime)
256 - POSIX callback functions of Thread.h are hidden
257
258 * MIDI driver:
259 - dispatch bank select (MSB and LSB) messages
260
261 * audio driver:
262 - the ALSA audio output driver parameters now reflect the correct
263 parameter value ranges for the respective selected sound card
264 (patch by Till Wimmer, a bit fixed and extended)
265
266 * Gigasampler format engine:
267 - if a filter is used and EG2 finishes before EG1, let the voice
268 die when EG2 has finished (this fixes a problem with clicks and
269 voice starvation for some gigs)
270 - playback is no longer disabled during instrument loading
271 - all notes playing on a channel that changes its instrument keep
272 playing with the old instrument until they get a note off
273 command
274 - EG fix: a release value of zero could cause noises or crash
275 - handle MIDI coarse tuning messages (MIDI RPN #0 MSB #2 LSB)
276 - EG fine tuning: when attack is zero the EG starts at a level
277 above max sustain level, which means that there is a decay phase
278 even if sustain is 100%
279 - more EG fixes: the level could sometimes go below zero and cause
280 noises or crashes
281 - minor fix of EGDecay (patch by Toshi Nagata)
282 - fixed compiler error when --enable-override-filter-type was
283 supplied to the configure script (fixes #46)
284 - disk thread: queue sizes are now proportional to CONFIG_MAX_STREAMS
285 instead of a fix value
286 - behavior fix: on MIDI CC# 65 (portamento on / off), 126 (mono mode),
287 127 (solo mode) only kill voices if the respective mode really
288 changed
289
290 * LSCP server:
291 - fixed compile time error for old Bison versions
292 (i.e. v1.28 found on MacOS 10.4, patch by Toshi Nagata)
293 - parser now supports extended ASCII character set
294 (up to ASCII code 255, i.e. includes now umlauts and accents)
295 - filename arguments in LSCP commands now allow to use escape
296 sequences, that is directly literal as one of: \', \", \\, \n, \r,
297 \f, \t, \v, or as octal ASCII code value like \132, or as hex ASCII
298 code value like \xf2) (fixes bug #24)
299 - the following LSCP commands now also support escape sequences for at
300 least one of their text-based parameters (i.e. name, description):
301 "ADD MIDI_INSTRUMENT_MAP", "MAP MIDI_INSTRUMENT",
302 "SET MIDI_INSTRUMENT_MAP NAME", "SET FX_SEND NAME", "CREATE FX_SEND",
303 "SET DB_INSTRUMENT_DIRECTORY NAME",
304 "SET DB_INSTRUMENT_DIRECTORY DESCRIPTION", "SET DB_INSTRUMENT NAME",
305 "SET DB_INSTRUMENT DESCRIPTION", "FIND DB_INSTRUMENTS",
306 "FIND DB_INSTRUMENT_DIRECTORIES"
307 - returns verbose syntax errors (line and column where syntax error
308 occured, the unexpected character and the actually expected, possible
309 character(s), the latter only if less than 5 possibilities)
310 - made sure that LSCP syntax is not affected by gigedit locale
311 settings
312 - bugfix regarding strings parameter lists: all comma separated lists
313 of strings were treated as being one string containing commas
314 (fixes #57)
315
316 * Bug fixes:
317 - fixed crash occurring on certain LSCP scripts (Bug 39)
318 - another thread safety fix for lscp "load engine" and "set
319 channel audio output device"
320 - fixed a crash which occurs when reassigning the same engine
321 on a sampler channel with connected MIDI device
322 - fixed a crash which occurs when changing the number of ports of a MIDI
323 device connected to a sampler channel to number less then or equal
324 to the index of the port to which the sampler channel is connected.
325 - The previous bindings were not been disconnected when altering
326 the ALSA_SEQ_BINDINGS parameter. Introduced a NONE keyword for
327 unsubscribing from all bindings (e.g. ALSA_SEQ_BINDINGS=NONE).
328 - The active stream/voice count statistic was incorrect.
329 - notification events were not been sent for some sampler
330 channel changes
331 - added default min and max values to restrict the number of allowed
332 audio output channels and MIDI input ports
333 - the connection to the PCM interface is now closed when destroying
334 an audio output device
335 - files with slash in their path or filename could not be loaded
336
337 * test cases:
338 - updated and fixed (haven't been touched in a while)
339
340 Version 0.4.0 (24 November 2006)
341
342 * packaging changes:
343 - changed deprecated copyright attribute to license; added ldconfig
344 to post-(un)install steps; added devel package for liblinuxsampler;
345 to linuxsampler.spec (RPM)
346 - install necessary development header files for allowing 3rd party
347 applications to link against liblinuxsampler
348 - liblinuxsampler's API documentation can be generated with 'make docs'
349 (Doxygen required)
350 - added benchmark to automatically detect the best triangle LFO
351 implementation (currently either an integer math solution or a
352 di-harmonic approximation), automatic detection can be overriden
353 with --enable-signed-triang-algo=x and --enable-unsigned-triang-algo=x
354 configure script argument though (mandatory for cross-compilation)
355 - do not automatically pick optimized gcc flags if the user already
356 provided some on his own (as CXXFLAGS)
357 - added compile time option to disable processing of All-Notes-Off MIDI
358 messages
359 - added compile time options to allow disabling the various audio and
360 MIDI drivers
361 - fixed automatic GCC CPU switch detection on PPC
362 (patch by Ebrahim Mayat)
363
364 * Gigasampler format engine:
365 - extensive synthesis optimization
366 (reimplementation of EGs and LFO(s), removed synthesis parameter
367 prerendering and the synthesis parameter matrix in general, splitting
368 each audio fragment into subfragments now where each subfragment uses
369 constant pitch and filter coefficients. The volume coefficient is
370 linearly interpolated inside a subfragment, unless
371 --disable-interpolate-volume is set.)
372 - fine tuning of the EG modulation parameters
373 - improved filter cutoff calculation by adding support for the
374 following gig parameters: Cutoff freq (used when no cutoff
375 controller is defined), Control invert, Minimum cutoff, Velocity
376 curve and Velocity range. The keyboard tracking now scales
377 cutoff frequency instead of resonance.
378 - added support for gig parameter Resonance.
379 - fixed bug in sysex handling (patch by Juan Linietsky)
380 - added global volume attenuation of -9 dB (0.35f) to prevent clipping
381 which can be overridden with --enable-global-attenuation
382 - EG fixes: made the length of "attack hold" stage more
383 accurate. Release stage can now start before attack stage
384 ends. Cancel release didn't work when sustain was zero. Attack
385 time now has a minimal value to prevent clicks.
386 - fixed pitch changes larger than one octave
387 - fixed EG3 (pitch envelope) synthesis which was neutral all the time
388 - implemented portamento mode and solo mode (a.k.a 'mono mode'):
389 all modes can be altered via standard GM messages, that is CC5 for
390 altering portamento time, CC65 for enabling / disabling portamento
391 mode, CC126 for enabling solo mode and CC127 for disabling solo mode
392 - fine tuning of the curves for volume (CC7), pan (CC10 and gig
393 parameter) and crossfade
394 - added support for the "attenuation controller threshold" gig
395 parameter
396 - added smoothing of volume changes caused by control change
397 messages
398 - sample loop parameters are now taken from the DimensionRegion
399 instead of the wave chunk
400 - fixed keyswitching for v3 gigs with a number of keyswitch splits
401 not equal to a power of two
402 - reimplementation of the filter algorithm. The new filter is more
403 accurate and supports all gig filter types, including bandreject
404 and lowpass turbo.
405 - real support for 24 bit samples - samples are not truncated to
406 16 bits anymore
407 - support for aftertouch (channel pressure, not polyphonic
408 aftertouch)
409 - LFO1 behaviour fixed (dampening from max volume instead of
410 amplifying from 0)
411
412 * LSCP server:
413 - fixed application exit on broken pipe error (fixes bug #20)
414 - fixed the notification messages delay due to lack of
415 network activity (fixes bug #26)
416 - fixed parser bug which occured on space(s) within device parameters
417 (e.g. "SET AUDIO_OUTPUT_CHANNEL_PARAMETER 0 0 SOMEPARAM='foo bar'")
418
419 * audio driver:
420 - added aRts audio output driver (by no means RT safe)
421
422 * MIDI driver:
423 - fixed legacy sysex code which caused dispatching of MIDI SysEx
424 messages several times instead of once
425 - API extension for MIDI drivers which already supply exact time stamps
426 for events (i.e. for offline rendering based MIDI drivers)
427 - added checks for bad MIDI data
428
429 * linuxsampler application:
430 - show available sampler engine types on startup
431
432 * general changes:
433 - support for muting sampler channels and solo mode of the same, two new
434 LSCP commands ("SET CHANNEL MUTE" and "SET CHANNEL SOLO") and two new
435 fields ("MUTE" and "SOLO") for command "GET CHANNEL INFO" were
436 introduced for this, the behavior is the same like on a mixer console
437 (patch by Grigor Iliev, a bit adjusted). Also added configure option
438 --enable-process-muted-channels which can be used to enable the
439 processing of muted channels.
440 - support for sostenuto pedal
441 - support for monitoring the total number of active voices
442 (new LSCP commands: GET TOTAL_VOICE_COUNT, GET TOTAL_VOICE_COUNT_MAX,
443 SUBSCRIBE TOTAL_VOICE_COUNT, UNSUBSCRIBE TOTAL_VOICE_COUNT)
444 - fixed some memory management errors
445 - fixed some concurrency problems that could lead to crashes when
446 LSCP commands were executed
447 - fixed crash when instrument loading failed previously on the same
448 sampler channel (fixes bug #36)
449
450 Version 0.3.3 (15 July 2005)
451
452 * packaging changes:
453 - fixed compilation with gcc 4.0
454
455 * Gigasampler format engine:
456 - LFO preprocessing was performed even though the respective LFO was
457 disabled by the instrument patch (minor efficiency fix)
458 - if period time of chosen audio device is too small (< MIN_RELEASE_TIME)
459 for volume ramp downs in the same fragment (needed for current voice
460 stealing implementation) then simply inform the user with a warning
461 about possible click sounds and reduce the volume ramp down
462 appropriately instead of cancelling the audio device connection
463
464 Version 0.3.2 (24 June 2005)
465
466 * packaging changes:
467 - updated autotools build files to compile on OS X
468 (conditional compilation of CoreMIDI and MidiShare drivers)
469 - hand-crafted assembly optimization code can be disabled with
470 './configure --disable-asm' (definitely not recommended)
471 - fixed 'make dist' rule to include all necessary files
472 - require automake (>= 1.5) for 'make -f Makefile.cvs'
473 (due to 'dist-bzip2' automake option)
474
475 * Gigasampler format engine:
476 - support for the gig parameters for "release velocity response" curves
477 - fine tuning of the EGADSR envelope
478 - volume of release triggered samples now depends on note-on velocity,
479 note length and gig parameter "release trigger decay" instead of
480 note-off velocity.
481 - revised voice stealing
482 (fixes crash and endless loop caused by voice stealing)
483 - don't reset scale tuning on instrument or audio output device change
484 - handle key group conflicts right at the beginning of each fragment
485 instead of when the respective voice is actually launched
486 (fixes undefined behavior if stolen voices belonged to a key group -
487 this case was followed by a "killed voice survived" error message)
488 - fixed minor issue with null/silence samples
489 (those stole voices even though they don't need a voice at all which
490 resulted in "voice stealing didn't work out" messages)
491 - don't reset volume, pan, pitch and MIDI controller values on
492 instrument or audio output device change
493
494 * LSCP server:
495 - fixed some crashes (patch by Grigor Iliev, fixes #19)
496 - fixed LSCP event "CHANNEL_INFO" notification
497 (e.g. did not notify on volume changes or MIDI program change events)
498
499 * linuxsampler application:
500 - added command line parameters --lscp-addr and --lscp-port to override
501 default IP address and port of LSCP server
502
503 Version 0.3.1 (24 May 2005)
504
505 * initial release

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