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Revision 1715 - (show annotations) (download)
Tue Mar 11 15:20:46 2008 UTC (16 years ago) by schoenebeck
File size: 22172 byte(s)
* dispatch bank select as ordinary CC as well, the user might seriously
  want to (mis)use it for some purpose ("fixed" in all current MIDI
  input drivers: ALSA, CoreMIDI, JACK, MidiShare, MME)
* minor fix: only mark FX sends as being modified if really the
  respective FX send MIDI controller was used

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

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