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Contents of /linuxsampler/trunk/ChangeLog

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Revision 1754 - (show annotations) (download)
Tue Aug 12 16:18:59 2008 UTC (12 years, 9 months ago) by iliev
File size: 23236 byte(s)
* bugfix: the bank number provided by MIDI_INSTRUMENT_INFO notifications
  was incorrect

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

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