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Revision 1764 - (show annotations) (download)
Sat Sep 6 14:55:18 2008 UTC (15 years, 6 months ago) by persson
File size: 23775 byte(s)
* rewrote the ConditionServer class to make it possible to create
  multiple sample channels when the audio thread isn't running

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

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