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Revision 1724 - (show annotations) (download)
Tue Apr 22 08:52:54 2008 UTC (15 years, 11 months ago) by schoenebeck
File size: 22234 byte(s)
* added support for GM global device volume SysEx message

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

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