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Contents of /linuxsampler/trunk/ChangeLog

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Revision 1748 - (show annotations) (download)
Sun Jun 22 14:46:46 2008 UTC (12 years ago) by persson
File size: 22741 byte(s)
* bugfix: notes triggered at position 0 in the audio buffer were
  sometimes wrongly killed in the same buffer, causing no sound to be
* fixes for audio drivers with varying buffer sizes
* Makefile fix: JACK_CFLAGS wasn't used
* JACK driver: use jack_client_open instead of the deprecated

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

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