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Contents of /linuxsampler/trunk/ChangeLog

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Revision 1695 - (show annotations) (download)
Sat Feb 16 01:09:33 2008 UTC (11 years, 11 months ago) by schoenebeck
File size: 21687 byte(s)
* added new LSCP event "DEVICE_MIDI" which can be used by frontends to
  react on MIDI data arriving on certain MIDI input devices (so far only
  Note-On and Note-Off events are sent via this LSCP event)
* bumped version to

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

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