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Contents of /linuxsampler/trunk/ChangeLog

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Revision 1727 - (show annotations) (download)
Tue Apr 29 15:44:09 2008 UTC (11 years, 7 months ago) by iliev
File size: 22405 byte(s)
* added support for handling lost files in the instruments database
* added new LSCP commands: FIND LOST DB_INSTRUMENT_FILES and

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

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