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Contents of /linuxsampler/trunk/ChangeLog

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Revision 1826 - (show annotations) (download)
Sat Jan 24 14:32:35 2009 UTC (11 years, 8 months ago) by iliev
File size: 25453 byte(s)
* fixed a crash which occurs when removing a sampler channel with
  instrument loading in progress (bug #113)

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

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