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Revision 1762 - (show annotations) (download)
Fri Aug 29 17:33:02 2008 UTC (12 years, 1 month ago) by schoenebeck
File size: 23610 byte(s)
* global volume sysex message can now be selected at compile time to be
  only applied to the sampler channels that are connected to the respective
  MIDI input port the SysEx message arrived on (by default global volume
  SysEx messages apply globally to the whole sampler)
* 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
10 * general changes:
11 - bugfix: on some POSIX systems instrument editor plugins refused to
12 load as we used a non-portable Linux specific struct field
13 (fixes bug #70, patch by Ronald Baljeu)
14 - fixed endless loop which occured when loading an instrument editor
15 plugin DLL on Windows systems failed
16 - fixed memory leaks that occurred when liblinuxsampler was unloaded
17 - optimized the SynchronizedConfig class so it doesn't wait
18 unnecessarily long after an update
19 - added support for notifying instrument editors on note-on / note-off
20 events (e.g. to highlight the pressed keys on the virtual keyboard
21 of gigedit)
22 - added support for triggering notes by instrument editors (see above)
23 - be verbose on DLL load errors (on Linux)
24 - fixed di-harmonic triangle LFO implementation (this LFO implementation
25 is only used by very few systems, most pick the int math
26 implementation, which is usually faster)
27 - fixes for audio drivers with varying buffer sizes
29 * audio driver:
30 - removed the nonsense audio channel constraint (which was hard coded to
31 max. 100 audio channels) for most audio drivers
32 - JACK audio driver did not offer a device parameter "SAMPLERATE" as
33 opposed to the LSCP specs
34 - bugfix: the SAMPLERATE parameter of some drivers (e.g. JACK)
35 reflected the wrong value
36 - fixed a memory management bug in ASIO driver
37 - Makefile fix: JACK_CFLAGS wasn't used
38 - JACK: use jack_client_open instead of thedeprecated
39 jack_client_new
41 * MIDI driver:
42 - added JACK MIDI driver
43 - dispatch bank select as ordinary CC as well, the user might seriously
44 want to (mis)use it for some purpose ("fixed" in all current MIDI
45 input drivers: ALSA, CoreMIDI, JACK, MidiShare, MME)
47 * instruments database:
48 - avoid time consuming samples scanning when adding instruments
49 to the instruments database
50 - added support for handling lost files in the instruments database
52 * Gigasampler format engine:
53 - fixed a memory leak that could happen when a channel was deleted
54 while notes were playing
55 - made it possible to load an instrument even if the audio thread
56 isn't running
57 - added partial support for the "Controller Triggered" MIDI rule,
58 enough for piano gigs with pedal noise samples
59 - minor fix: only mark FX sends as being modified if really the
60 respective FX send MIDI controller was used
61 - added support for GM global device volume SysEx message
62 (can be selected at compile time to either apply globally to the
63 whole sampler [default] or only to the sampler channels that are
64 connected to the respective MIDI input port the SysEx message arrived
65 on)
66 - bugfix: notes triggered at position 0 in the audio buffer were
67 sometimes wrongly killed in the same buffer, causing no sound to
68 be played
69 - added support for chromatic / drumkit mode Roland GS Sysex message
70 which is usally used to switch a part between chromatic sounds and
71 drumkit sounds (as opposed to their common default setting of MIDI
72 part 10 being a drumkit part and all other ones chromatic parts), in
73 LS however one can switch between the first 16 MIDI instrument maps
74 defined for the sampler
76 * LSCP server:
77 - added new LSCP event "CHANNEL_MIDI" which can be used by frontends to
78 react on MIDI data arriving on certain sampler channels (so far only
79 Note-On and Note-Off events are sent via this LSCP event)
80 - added new LSCP event "DEVICE_MIDI" which can be used by frontends to
81 react on MIDI data arriving on certain MIDI input devices (so far only
82 Note-On and Note-Off events are sent via this LSCP event)
83 - added new LSCP commands: FIND LOST DB_INSTRUMENT_FILES and
85 - bugfix: the bank number provided by MIDI_INSTRUMENT_INFO notifications
86 was incorrect
88 * Bug fixes:
89 - fixed a crash which occurs when removing a sampler channel waiting
90 to start instrument loading after another channel
93 Version 0.5.1 (6 December 2007)
95 * packaging changes:
96 - added autoconf checks for pthread library
97 - added autoconf check for pthread bug found on certain NPTL-enabled
98 glibc versions (see Gentoo bug report #194076)
99 - added autoconf checks for MS Windows
101 * general changes:
102 - bugfix: the thread used by an editor plugin didn't die when the
103 editor closed
104 - bugfix: Ringbuffer.h: fill_write_space_with_null() did not zero
105 out all the space. operator--() did not apply size_mask after
106 decrementing the read_ptr. DEFAULT_WRAP_ELEMENTS set to 0 in
107 order to avoid problems with the _NonVolatileReader functions.
108 - bugfix: Stream.h: added a missing divide by BytesPerSample in
109 GetWriteSpace(). Since this function is currently only used in
110 the stream's qsort() compare function, it didn't trigger any
111 bugs.
112 - Resampler.h, Synthesizer.h: cubic interpolation now works in
113 24bit mode too. Faster method to read 24bit words on little
114 endian machines (x86): replaced 3 byte reads + shifts with a 1
115 unaligned 32bit read and shift
116 - experimental support for MS Windows (MIDI input via MME, AUDIO
117 output via ASIO)
118 - made handling of SIGINT signal (Ctrl-C) a bit more robust
119 - support for monitoring the total number of active disk streams
120 (new LSCP commands: GET TOTAL_STREAM_COUNT,
123 * AUDIO driver:
124 - added Windows ASIO low latency audio driver
126 * MIDI driver:
127 - added MME Windows MIDI driver
129 * LSCP server:
130 - added support for Windows style path / filenames, however with
131 forward slash path separators instead of backslash
132 (i.e. "C:/foo/bar.gig")
133 - allow naughty liblscp to send non-string device parameters within
134 apostrophes as well
135 - added new LSCP commands: "GET FILE INSTRUMENTS <file>",
136 "LIST FILE INSTRUMENTS <file>" and
137 "GET FILE INSTRUMENT INFO <file> <index>" for retrieving informations
138 about an arbitrary instrument file on the system where the sampler is
139 running on
141 Version 0.5.0 (15 October 2007)
143 * packaging changes:
144 - config.h is not going to be installed along with liblinuxsampler's
145 API header files anymore
146 - only the API relevant header (and source) files will be exported to
147 the Doxygen API documentation (explicitly listed in Doxyfile.in)
148 - added completely new XCode project files for Mac OSX which is now
149 capable to execute our autoconf environment, thus no need anymore
150 to maintain the compile time configuration file (osx/version.h) for
151 OSX manually (patch by Toshi Nagata)
152 - fixed buggy boolean --enable-foo / --disable-foo configure script
153 parameters
154 - global.h now only covers global definitions that are needed for the
155 C++ API header files, all implementation internal global definitions
156 are now in global_private.h
157 - atomic.h is not exposed to the C++ API anymore
158 - no need to include config.h anymore for using LS's API header files
159 - fixed warnings in API doc generation
161 * general changes:
162 - replaced the old, confusing MIDI program change mechanism by a
163 flexible MIDI instrument mapper which allows to map arbitrary
164 (MIDI bank, MIDI program) pairs with arbitrary
165 (engine type, instrument file, file index) triplets which will be
166 loaded on the respective channel when such MIDI program change
167 messages arrive, beside that, each entry allows to define a life-time
168 strategy for the instrument, so the user can define whether the
169 instrument should i.e. be permanently loaded (to be able to switch
170 quickly among sounds) or i.e. loaded just on demand when the
171 respective program change arrives (to safe RAM space), as well as a
172 global volume factor for each entry, so the user can adjust the volume
173 dynamic of his mapped instrument collection without having to modify
174 the instrument files, also one can manage arbitrary amount of such
175 MIDI instrument maps and assign each sampler channel individually
176 a certain map, so that i.e. separation of normal instruments and
177 drumkits is possible
178 - new notification events for tracking changes to audio/MIDI devices,
179 MIDI instrument maps, MIDI instruments, FX sends, global volume.
180 - sampler was limited to load max. 200 instruments in the background
181 due to a constant size RingBuffer FIFO which is now replaced by a
182 dynamic (unlimited) size std::list FIFO
183 - added FX sends, these allow to route audio signals to arbitrary audio
184 output channels for being processed by external effect processors
185 (i.e. jack-rack), the send levels are controllable via arbitrary MIDI
186 controllers
187 - global (sampler wide) volume can now be controlled at runtime
188 - Implemented new, improved notification system
189 - fixed compilation errors regarding OSX
190 (patch by Toshi Nagata)
191 - implemented instruments database
192 - added support for escape sequences to the instruments database
193 - added highly experimental support for on-the-fly instrument editing
194 within the sampler's process (by using instrument editor plugins),
195 you'll notice the new "Registered instrument editors:" message on
196 startup, added a new LSCP command:
197 "EDIT CHANNEL INSTRUMENT <sampler-channel>"
198 to spawn a matching instrument editor for the instrument on the
199 given sampler channel, the plugin path can be overridden at compile
200 time with ./configure --enable-plugin-dir=/some/dir
201 - added experimental code for synchronizing instrument editors hosted
202 in the sampler's process to safely edit instruments while playing
203 without a crash (hopefully) by either suspending single regions
204 wherever possible or if unavoidable whole engine(s)
205 - fixed several issues in fundamental "Thread" class: set scheduling
206 policy and priority on thread level, set a minimum stack size for
207 thread (TODO: a reasonable value yet to be tested), bugfix: non-RT
208 threads simply inherited properties of starting thread instead of
209 setting their own policy and priority
210 - minor fix in our automatic stack trace mechanism on crashes, the
211 main process did not wait for the stack trace process to finish
212 its output
213 - fixed some minor memory leaks
214 - reenabled assembly features support, at the moment only for
215 enabling a fast denormal FPU mode (x86 platforms supporting SSE2)
216 - minor assembly fix in x86 features detection (don't use the PIC
217 register, to avoid relocations in the text segment at runtime)
218 - POSIX callback functions of Thread.h are hidden
220 * MIDI driver:
221 - dispatch bank select (MSB and LSB) messages
223 * audio driver:
224 - the ALSA audio output driver parameters now reflect the correct
225 parameter value ranges for the respective selected sound card
226 (patch by Till Wimmer, a bit fixed and extended)
228 * Gigasampler format engine:
229 - if a filter is used and EG2 finishes before EG1, let the voice
230 die when EG2 has finished (this fixes a problem with clicks and
231 voice starvation for some gigs)
232 - playback is no longer disabled during instrument loading
233 - all notes playing on a channel that changes its instrument keep
234 playing with the old instrument until they get a note off
235 command
236 - EG fix: a release value of zero could cause noises or crash
237 - handle MIDI coarse tuning messages (MIDI RPN #0 MSB #2 LSB)
238 - EG fine tuning: when attack is zero the EG starts at a level
239 above max sustain level, which means that there is a decay phase
240 even if sustain is 100%
241 - more EG fixes: the level could sometimes go below zero and cause
242 noises or crashes
243 - minor fix of EGDecay (patch by Toshi Nagata)
244 - fixed compiler error when --enable-override-filter-type was
245 supplied to the configure script (fixes #46)
246 - disk thread: queue sizes are now proportional to CONFIG_MAX_STREAMS
247 instead of a fix value
248 - behavior fix: on MIDI CC# 65 (portamento on / off), 126 (mono mode),
249 127 (solo mode) only kill voices if the respective mode really
250 changed
252 * LSCP server:
253 - fixed compile time error for old Bison versions
254 (i.e. v1.28 found on MacOS 10.4, patch by Toshi Nagata)
255 - parser now supports extended ASCII character set
256 (up to ASCII code 255, i.e. includes now umlauts and accents)
257 - filename arguments in LSCP commands now allow to use escape
258 sequences, that is directly literal as one of: \', \", \\, \n, \r,
259 \f, \t, \v, or as octal ASCII code value like \132, or as hex ASCII
260 code value like \xf2) (fixes bug #24)
261 - the following LSCP commands now also support escape sequences for at
262 least one of their text-based parameters (i.e. name, description):
269 - returns verbose syntax errors (line and column where syntax error
270 occured, the unexpected character and the actually expected, possible
271 character(s), the latter only if less than 5 possibilities)
272 - made sure that LSCP syntax is not affected by gigedit locale
273 settings
274 - bugfix regarding strings parameter lists: all comma separated lists
275 of strings were treated as being one string containing commas
276 (fixes #57)
278 * Bug fixes:
279 - fixed crash occurring on certain LSCP scripts (Bug 39)
280 - another thread safety fix for lscp "load engine" and "set
281 channel audio output device"
282 - fixed a crash which occurs when reassigning the same engine
283 on a sampler channel with connected MIDI device
284 - fixed a crash which occurs when changing the number of ports of a MIDI
285 device connected to a sampler channel to number less then or equal
286 to the index of the port to which the sampler channel is connected.
287 - The previous bindings were not been disconnected when altering
288 the ALSA_SEQ_BINDINGS parameter. Introduced a NONE keyword for
289 unsubscribing from all bindings (e.g. ALSA_SEQ_BINDINGS=NONE).
290 - The active stream/voice count statistic was incorrect.
291 - notification events were not been sent for some sampler
292 channel changes
293 - added default min and max values to restrict the number of allowed
294 audio output channels and MIDI input ports
295 - the connection to the PCM interface is now closed when destroying
296 an audio output device
297 - files with slash in their path or filename could not be loaded
299 * test cases:
300 - updated and fixed (haven't been touched in a while)
302 Version 0.4.0 (24 November 2006)
304 * packaging changes:
305 - changed deprecated copyright attribute to license; added ldconfig
306 to post-(un)install steps; added devel package for liblinuxsampler;
307 to linuxsampler.spec (RPM)
308 - install necessary development header files for allowing 3rd party
309 applications to link against liblinuxsampler
310 - liblinuxsampler's API documentation can be generated with 'make docs'
311 (Doxygen required)
312 - added benchmark to automatically detect the best triangle LFO
313 implementation (currently either an integer math solution or a
314 di-harmonic approximation), automatic detection can be overriden
315 with --enable-signed-triang-algo=x and --enable-unsigned-triang-algo=x
316 configure script argument though (mandatory for cross-compilation)
317 - do not automatically pick optimized gcc flags if the user already
318 provided some on his own (as CXXFLAGS)
319 - added compile time option to disable processing of All-Notes-Off MIDI
320 messages
321 - added compile time options to allow disabling the various audio and
322 MIDI drivers
323 - fixed automatic GCC CPU switch detection on PPC
324 (patch by Ebrahim Mayat)
326 * Gigasampler format engine:
327 - extensive synthesis optimization
328 (reimplementation of EGs and LFO(s), removed synthesis parameter
329 prerendering and the synthesis parameter matrix in general, splitting
330 each audio fragment into subfragments now where each subfragment uses
331 constant pitch and filter coefficients. The volume coefficient is
332 linearly interpolated inside a subfragment, unless
333 --disable-interpolate-volume is set.)
334 - fine tuning of the EG modulation parameters
335 - improved filter cutoff calculation by adding support for the
336 following gig parameters: Cutoff freq (used when no cutoff
337 controller is defined), Control invert, Minimum cutoff, Velocity
338 curve and Velocity range. The keyboard tracking now scales
339 cutoff frequency instead of resonance.
340 - added support for gig parameter Resonance.
341 - fixed bug in sysex handling (patch by Juan Linietsky)
342 - added global volume attenuation of -9 dB (0.35f) to prevent clipping
343 which can be overridden with --enable-global-attenuation
344 - EG fixes: made the length of "attack hold" stage more
345 accurate. Release stage can now start before attack stage
346 ends. Cancel release didn't work when sustain was zero. Attack
347 time now has a minimal value to prevent clicks.
348 - fixed pitch changes larger than one octave
349 - fixed EG3 (pitch envelope) synthesis which was neutral all the time
350 - implemented portamento mode and solo mode (a.k.a 'mono mode'):
351 all modes can be altered via standard GM messages, that is CC5 for
352 altering portamento time, CC65 for enabling / disabling portamento
353 mode, CC126 for enabling solo mode and CC127 for disabling solo mode
354 - fine tuning of the curves for volume (CC7), pan (CC10 and gig
355 parameter) and crossfade
356 - added support for the "attenuation controller threshold" gig
357 parameter
358 - added smoothing of volume changes caused by control change
359 messages
360 - sample loop parameters are now taken from the DimensionRegion
361 instead of the wave chunk
362 - fixed keyswitching for v3 gigs with a number of keyswitch splits
363 not equal to a power of two
364 - reimplementation of the filter algorithm. The new filter is more
365 accurate and supports all gig filter types, including bandreject
366 and lowpass turbo.
367 - real support for 24 bit samples - samples are not truncated to
368 16 bits anymore
369 - support for aftertouch (channel pressure, not polyphonic
370 aftertouch)
371 - LFO1 behaviour fixed (dampening from max volume instead of
372 amplifying from 0)
374 * LSCP server:
375 - fixed application exit on broken pipe error (fixes bug #20)
376 - fixed the notification messages delay due to lack of
377 network activity (fixes bug #26)
378 - fixed parser bug which occured on space(s) within device parameters
381 * audio driver:
382 - added aRts audio output driver (by no means RT safe)
384 * MIDI driver:
385 - fixed legacy sysex code which caused dispatching of MIDI SysEx
386 messages several times instead of once
387 - API extension for MIDI drivers which already supply exact time stamps
388 for events (i.e. for offline rendering based MIDI drivers)
389 - added checks for bad MIDI data
391 * linuxsampler application:
392 - show available sampler engine types on startup
394 * general changes:
395 - support for muting sampler channels and solo mode of the same, two new
396 LSCP commands ("SET CHANNEL MUTE" and "SET CHANNEL SOLO") and two new
397 fields ("MUTE" and "SOLO") for command "GET CHANNEL INFO" were
398 introduced for this, the behavior is the same like on a mixer console
399 (patch by Grigor Iliev, a bit adjusted). Also added configure option
400 --enable-process-muted-channels which can be used to enable the
401 processing of muted channels.
402 - support for sostenuto pedal
403 - support for monitoring the total number of active voices
406 - fixed some memory management errors
407 - fixed some concurrency problems that could lead to crashes when
408 LSCP commands were executed
409 - fixed crash when instrument loading failed previously on the same
410 sampler channel (fixes bug #36)
412 Version 0.3.3 (15 July 2005)
414 * packaging changes:
415 - fixed compilation with gcc 4.0
417 * Gigasampler format engine:
418 - LFO preprocessing was performed even though the respective LFO was
419 disabled by the instrument patch (minor efficiency fix)
420 - if period time of chosen audio device is too small (< MIN_RELEASE_TIME)
421 for volume ramp downs in the same fragment (needed for current voice
422 stealing implementation) then simply inform the user with a warning
423 about possible click sounds and reduce the volume ramp down
424 appropriately instead of cancelling the audio device connection
426 Version 0.3.2 (24 June 2005)
428 * packaging changes:
429 - updated autotools build files to compile on OS X
430 (conditional compilation of CoreMIDI and MidiShare drivers)
431 - hand-crafted assembly optimization code can be disabled with
432 './configure --disable-asm' (definitely not recommended)
433 - fixed 'make dist' rule to include all necessary files
434 - require automake (>= 1.5) for 'make -f Makefile.cvs'
435 (due to 'dist-bzip2' automake option)
437 * Gigasampler format engine:
438 - support for the gig parameters for "release velocity response" curves
439 - fine tuning of the EGADSR envelope
440 - volume of release triggered samples now depends on note-on velocity,
441 note length and gig parameter "release trigger decay" instead of
442 note-off velocity.
443 - revised voice stealing
444 (fixes crash and endless loop caused by voice stealing)
445 - don't reset scale tuning on instrument or audio output device change
446 - handle key group conflicts right at the beginning of each fragment
447 instead of when the respective voice is actually launched
448 (fixes undefined behavior if stolen voices belonged to a key group -
449 this case was followed by a "killed voice survived" error message)
450 - fixed minor issue with null/silence samples
451 (those stole voices even though they don't need a voice at all which
452 resulted in "voice stealing didn't work out" messages)
453 - don't reset volume, pan, pitch and MIDI controller values on
454 instrument or audio output device change
456 * LSCP server:
457 - fixed some crashes (patch by Grigor Iliev, fixes #19)
458 - fixed LSCP event "CHANNEL_INFO" notification
459 (e.g. did not notify on volume changes or MIDI program change events)
461 * linuxsampler application:
462 - added command line parameters --lscp-addr and --lscp-port to override
463 default IP address and port of LSCP server
465 Version 0.3.1 (24 May 2005)
467 * initial release

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